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WO2020241890A1 - Packaging structure for absorbent article - Google Patents

Packaging structure for absorbent article Download PDF

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Publication number
WO2020241890A1
WO2020241890A1 PCT/JP2020/021489 JP2020021489W WO2020241890A1 WO 2020241890 A1 WO2020241890 A1 WO 2020241890A1 JP 2020021489 W JP2020021489 W JP 2020021489W WO 2020241890 A1 WO2020241890 A1 WO 2020241890A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging structure
package
less
packaging
static friction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/021489
Other languages
French (fr)
Japanese (ja)
Inventor
美奈 富田
坂 渉
拓也 幸田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to CN202080040507.3A priority Critical patent/CN113905953B/en
Publication of WO2020241890A1 publication Critical patent/WO2020241890A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00Details of other kinds or types of rigid or semi-rigid containers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00Details of, or accessories for, sacks or bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38Packaging materials of special type or form
    • B65D65/40Applications of laminates for particular packaging purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38Packaging materials of special type or form
    • B65D65/42Applications of coated or impregnated materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2565/00Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38Packaging materials of special type or form
    • B65D2565/381Details of packaging materials of special type or form

Definitions

  • the present invention relates to a packaging structure for an absorbent article, and more particularly to a packaging structure for an absorbent article formed by housing the absorbent article in a package.
  • Patent Document 1 discloses a packaging structure in which an absorbent article is housed in a hexahedral package having a front surface, a back surface, two side surfaces, a top surface, and a bottom surface.
  • the packaging structure is transported to the store and displayed on the shelves of the store with the bottom of the package facing down, that is, vertically placed, or with the back of the package facing down, that is, in a flat stacking state. ..
  • a variety of absorbent articles can be recognized on each surface of the package so that information such as the type of the absorbent articles housed can be recognized regardless of the display state.
  • Information indicating the tape type, pants type, etc.) and size is displayed.
  • the present invention relates to a packaging structure for absorbent articles.
  • the packaging structure of the present invention comprises an absorbent article housed in a package.
  • the package is a hexahedron composed of a front surface, a back surface facing the front surface, a first side surface, a second side surface facing the first side surface, a top surface, and a bottom surface facing the top surface.
  • the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is 0.25 or more.
  • FIG. 1 (A) is a perspective view showing the inside of the packaging structure of the absorbent article according to the first embodiment of the present invention
  • FIG. 1 (B) is the absorbent according to the first embodiment of the present invention.
  • FIG. 2 is a sectional view taken along line AA of FIG. 1 (B) according to the embodiment of the present invention.
  • FIG. 3A is a perspective view showing a state in which the packaging structure of the absorbent article according to the embodiment of the present invention is vertically placed
  • FIG. 3B is an absorption according to the embodiment of the present invention.
  • FIG. 4 is a diagram showing a method for measuring the coefficient of static friction.
  • FIG. 5 is a diagram showing a state of being housed in a corrugated cardboard box, which is an example of a body containing a plurality of packaging structures.
  • FIG. 6 is a perspective view showing a packaging structure of an absorbent article according to a fourth embodiment of the present invention.
  • FIGS. 7A and 7B are views showing how to evaluate the difficulty of collapsing the packaging structure.
  • 8 (A) and 8 (B) are views showing how to evaluate the ease of putting the packaging structure into the corrugated cardboard box.
  • the packaging structure may collapse during display.
  • the display method in which packages are stacked in a flat stacking state when a plurality of packages are moved in a stacked state or when the packaging structure is taken out from the display state, the display state of the packaging structure is disturbed or the load collapses. easy.
  • the present invention relates to a packaging structure capable of eliminating the above-mentioned drawbacks of the prior art.
  • the packaging structure 1 includes a plurality of absorbent articles 3 and a package 5.
  • the plurality of absorbent articles 3 are packaged in a package 5.
  • the absorbent article 3 is, for example, a diaper or a napkin.
  • the package 5 faces the front surface 7, the back surface 9 facing the front surface 7, the first side surface 11, the second side surface 13 facing the first side surface 11, the top surface 15, and the top surface 15. It is a hexahedron composed of a bottom surface 17.
  • Each surface of the package 5 includes a matte layer 19 on the outermost layer, and the first side surface 11 includes a matte layer 19 and a non-matte layer region 21a.
  • the package 5 has a non-matte layer region 21b on the front surface 7, a non-matte layer region 21c on the first side surface 11, and a non-matte layer region on the second side surface 13. 21d is provided with a non-matte layer region 21e on the top surface 15.
  • non-matte layer region 21a for example, the size and the number of a plurality of absorbent articles 3 packaged by the package 5 are described.
  • non-matte layer regions 21b to 21e for example, the logotype of the absorbent article 3 and the like are described.
  • the package 5 has a film base material layer 25 and an ink layer from the inner surface (absorbent article side surface 23) to the outer surface when used for the packaging structure 1. 27 and the mat layer 19 are laminated in this order.
  • the film base material layer 25 is a basic material for maintaining the shape and strength when the package 5 is used for the packaging structure 1.
  • the film substrate layer 25 is preferably made of a flexible and strong film material. Examples of the flexible and strong film material include polyethylene, polyamide, polyester, polybutylene terephthalate, polyethylene terephthalate and the like. Further, the film base material layer 25 may be a single layer or a laminated film having a plurality of layers made of the same or different materials.
  • the ink layer 27 is a layer for imparting information on the absorbent article 3 such as a pattern, a pattern, and characters to the package 5.
  • the material of the ink layer 27 is an ink composition.
  • the ink composition contains, for example, carbon black, diamine, polyol, curing agent, organic solvent and the like.
  • the curing agent is, for example, isocyanate.
  • the organic solvent is, for example, toluene.
  • the ink layer 27 can be formed by printing (applying) the above composition on the surface of the film base material layer 25 so as to display a desired pattern, pattern, characters, etc., for example, by a gravure printing method or the like. ..
  • the mat layer 19 is provided as the outermost layer of the package 5.
  • the mat layer 19 has fine irregularities on the surface of the package 5, and the coefficient of friction between the packages can be set to a desired value.
  • the mat layer 19 is a resin layer 31 in which the matting agent 29 is dispersed.
  • the matting agent is a resin layer. It is preferably contained in an amount of 1% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 15% by mass or less, based on the total weight of the matting agent and the resin.
  • the particle size of the matting agent is preferably 0.1 ⁇ m or more and 50 ⁇ m or less.
  • the matting agent 29 silica, alumina, calcium oxide, calcium carbonate, calcium sulfate, calcium silicate, and carbon black are preferable, and silica is more preferable.
  • the resin layer 31 is formed of, for example, an acrylic resin, an epoxy resin, a urethane resin, a polyolefin resin, a fluorine resin, a phenoxy resin, or a silicone resin.
  • the mat layer 19 has fine irregularities formed on the surface due to the plurality of matting agents 29 protruding outward from the resin layer 31. Friction between packages can be increased by this fine unevenness. Further, the density of the unevenness formed on the surface can be adjusted by adjusting the number of lines of the printing plate of the mat layer 19 and the density of the mat material, and the frictional force between the packages can be changed. When the number of printed lines of the mat layer 19 is increased, the frictional force is increased, and when the number of printed lines is decreased, the frictional force is decreased. Further, the frictional force for increasing the density of the unevenness of the mat layer 19 increases, and the frictional force decreases when the density of the unevenness is made sparse.
  • one packaging structure 1a and the other packaging structure 1b are, for example, display shelves of a store or the like (shown).
  • the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are in contact with each other, and the bottom surfaces 17a and 17b are turned down, that is, vertically placed. It will be displayed at.
  • the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are turned down, that is, in a flat stacking state. It is displayed on the shelves of stores.
  • the coefficient of static friction between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is a viewpoint of preventing the load from collapsing.
  • 0.25 or more, preferably 0.30 or more, and the upper limit is not particularly limited, but 0.50 or less is preferable, and 0.40 or less is more preferable from the viewpoint of ease of packaging. It is more preferably 0.35 or less, and preferably 0.25 or more and 0.50 or less, more preferably 0.30 or more and 0.40 or less, and more preferably 0.30 or more and 0.35 or less. ..
  • an external force is applied from a state where the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are in contact with each other. Since it does not easily slip off, it does not easily collapse during display.
  • a plurality of packaging structures 1 as shown in FIG. 3A are displayed side by side, or as shown in FIG. 3B. It is conceivable to take out from the display state in which they are stacked side by side. More specifically, in the case of the display state shown in FIG. 3 (A), the adjacent packages are pulled out from the front row and taken out, and in the case of the display state shown in FIG. 3 (B).
  • the packaging structure 1 of the first embodiment when the packaging structure 1 of the first embodiment is taken out from the display state, the packaging structure is less likely to collapse and does not require time for reloading. Further, since the packaging structure 1 of the first embodiment does not easily disturb the display state, there is no problem that the appearance is not impaired and the collapsed packaging structure 1 becomes a shadow and the information of the content portion becomes difficult to see. .. In addition, the packaging structure 1 of the first embodiment can increase the purchasing motivation of the user by providing the mat layer 19 on the outermost layer of the package 5.
  • the above-mentioned static friction coefficient conforms to the JIS-K7125 plastic-film and sheet friction coefficient test method, and can be measured using, for example, a measuring device 37 as shown in FIG.
  • the measuring device 37 includes a test table 39, a pulley 41 installed on the test table 39, a wire 43 hung on the pulley 41, and a weight 45 attached to one end of the wire 43 and arranged on the test table 39.
  • the pulley 41 is a fixed pulley having a fixed axis of rotation.
  • the first sample 47 is fixed to the measurement surface (contact surface) of the weight 45.
  • the second sample 49 is fixed to the upper surface of the test table 39 facing the measurement surface (contact surface) of the weight 45 with a well-known fixture or the like provided on the test table 39.
  • the other end of the wire 43 is connected to a tensile tester (not shown) via a spring 51.
  • the spring 51 absorbs the impact when the weight 45 starts to move.
  • the tensile tester is, for example, an autograph (Shimadzu Corporation, model number AG-X).
  • the weight 45 has a weight of 190 g and has a measurement surface dimension of 30 mm ⁇ 100 mm (length ⁇ width) in a plan view. In the measurement surface dimension, the lateral direction is a dimension in the direction in which the weight 45 moves.
  • an air-through non-woven fabric (basis weight: 20 g / m2) is attached to the weight 45 side, which is the non-measurement surface of the first sample 47, and the first sample 47 is placed on the weight 45. Fix it.
  • an air-through non-woven fabric (basis weight: 20 g / m2) is attached to the test table 39 side, which is the non-measurement surface of the second sample 49, and fixed to the upper surface of the test table 39.
  • the horizontal dimension of the first sample 47 is the same size (100 mm) as the size of the measurement surface (contact surface) of the weight 45, and the vertical dimension is a size (60 mm) larger than the size of the measurement surface (contact surface) of the weight. Then, it was fixed around the weight in a vertically wound state.
  • the size of the portion of the weight located on the measurement surface (contact surface) is 30 mm ⁇ 100 mm (length ⁇ width) in a plan view.
  • the size of the second sample 49 is the same as or larger than the size of the measurement surface (contact surface) of the weight 45, and is, for example, 250 mm ⁇ 150 mm (length ⁇ width).
  • the packaging structure for cutting out the first sample When measuring the static friction coefficient between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure, the packaging structure for cutting out the first sample and the packaging structure for cutting out the second sample.
  • the packaging structure for cutting out the first sample may be a different packaging structure from the above, if packaging structures having the same configuration are laminated side by side with the front orientation aligned or are planned to be laminated, one packaging structure is used.
  • the first sample may be cut out from either the front or the back surface of the above, and the second sample may be cut out from the other. If the matte area and the non-matte area are mixed on one or both of the front and back surfaces for measuring the coefficient of static friction of the package, the distance from the top surface side edge to the bottom surface side edge of each surface.
  • ⁇ S FS / FP ⁇ ⁇ ⁇ (1)
  • ⁇ S is a static friction coefficient
  • FS is a static friction force [N]
  • the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist of the present invention.
  • a modified example of the embodiment of the present invention will be described below, but in the modified example described below, the portion exhibiting the same action and effect as that of the above-described embodiment is given the same reference numerals to detail the portion. The description is omitted, and the following description mainly describes the differences from the embodiments.
  • the static friction coefficient between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is the one packaging structure 1a. It is preferable that the coefficient of static friction between the first side surface 11a of the package 5a and the second side surface 13b of the package 5b of the other packaging structure 1b is greater than 0.05 or more from the viewpoint of preventing the load from collapsing. From the viewpoint of ease of taking the package 6, the static friction coefficient is preferably 0.5 or less.
  • the coefficient of static friction between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is 0.25 or more, preferably 0, as in the first embodiment. It is .30 or more, and the upper limit is not particularly limited, but 0.50 or less is preferable, 0.40 or less is more preferable, 0.35 or less is more preferable, and 0.25 or more and 0 is preferable. It is .50 or less, more preferably 0.30 or more and 0.40 or less, and more preferably 0.30 or more and 0.35 or less.
  • the coefficient of static friction between the first side surface 11a of the package 5a of one packaging structure 1a and the second side surface 13b of the package 5b of the other packaging structure 1b is preferably 0.05 or more, and is 0. .10 or more is more preferable, 0.50 or less is preferable, 0.30 or less is more preferable, and 0.05 or more and 0.50 or less is preferable. It is 10 or more and 0.30 or less.
  • the number of printed lines of each mat layer 19 of the first and second side surfaces 11a and 13b is 40% of the number of printed lines of the mat layer 19 of the front surface 7 and the back surface 9, respectively. It is preferably 50% or more, more preferably 60% or more, more preferably 90% or less, more preferably 80% or less, and 40%. It is preferably ⁇ 90%, more preferably 50-80%, and even more preferably 60-80%. That is, the number of printed lines of each of the matte layers 19 of the first and second side surfaces 11 and 13 is preferably 175 lines or more, more preferably 200 lines or more, and 240 lines or more per inch. Is more preferably 500 or less, more preferably 460 or less, further preferably 420 or less, and preferably 175 to 500, 200. The number is more preferably ⁇ 460, and even more preferably 240 to 420.
  • the packaging structure 1 of the second embodiment Since the packaging structure 1 of the second embodiment has the above-described configuration, the packaging structure 1 of the second embodiment is laminated and stacked to form a single row as shown in FIG. 3B.
  • the friction between the side of the package to be inserted and the side of the package stacked in the next row is the front of the stacked packages. Since it is smaller than the friction between the surface and the back surface (static friction coefficient), it can be smoothly inserted into the display shelf without collapsing the stacked packages to be inserted and the packaging structure displayed in the adjacent row, and the display work efficiency is good.
  • the user extracts the packaging structure 1 of one example, and the packaging structures 1 displayed in the adjacent row are extracted together. It is possible to prevent it from being stored.
  • the packaging structure 1 of the third embodiment has a static friction coefficient between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b.
  • Each of the first and second side surfaces 11a, 11b, 13a, 13b of one and the other packaging structures 1a and 1b, and the corrugated cardboard box 53 which is an accommodating body for accommodating a plurality of packaging structures in a laminated state. It is preferable that the coefficient of static friction between the packaging structure side surface 55, which is the surface facing the side surface, is larger than the static friction coefficient, from the viewpoint of making it easy to remove the packaging structures 1a and 1b from the corrugated cardboard box 53 without breaking them.
  • the coefficient of static friction between the packaging structure side surface 55 of the corrugated cardboard box 53 and the first and second side surfaces 11a, 11b, 13a, 13b of one and the other packaging structures 1a and 1b is 0.05 or more. It is preferably 0.10 or more, more preferably 0.50 or less, more preferably 0.35 or less, and 0.05 or more and 0.50 or less. It is preferable, and it is more preferable that it is 0.10 or more and 0.35 or less.
  • the corrugated cardboard box 53 is in a state as shown in FIG. 5 without breaking the display state of the plurality of flatly stacked packaging structures 1. Can be accommodated in. Therefore, it is easy to store the packaging structures in the corrugated cardboard box 53 in a stacked state in the production line.
  • the static friction value in the third embodiment can be obtained by cutting out the central region of the side surface of the package 5, collecting the first sample 47 and the second sample 49, respectively, and using the measuring method described in FIG. In this case, the cutout dimensions of the first sample 47 and the second sample 49 are the same as those of the above sample. Further, the first sample 47 is a portion without the mat layer 19, and the second sample 49 is a portion with the mat layer 19.
  • the front surface 7 and the back surface 9 of the package 5 are first composed of a rectangular mat layer extending from the first side surface 11 to the second side surface 13.
  • the first and second side surfaces 11 and 13 of the package 5 are provided with a plurality of second mat layer regions 59 made of a rectangular mat layer extending from the top surface 15 to the bottom surface 17.
  • the description of the first mat layer region 57 on the back surface 9 and the second mat layer region 59 on the second side surface 13 is omitted.
  • the packaging structure 1 of the fourth embodiment satisfies the following (formula) from the viewpoint of preventing the load from collapsing with a desired friction coefficient.
  • the average value of the horizontal dimensions of each mat layer region is 60% or more, where the shortest distance from the first side surface 11 to the second side surface 13 is 100%. It is preferable to have a desired friction coefficient from the viewpoint of preventing load collapse, more preferably 80% or more, further preferably 90% or more, and preferably 100% or less. It is preferably 60% or more and 100% or less, more preferably 80% or more and 100% or less, and further preferably 90% or more and 100% or less.
  • the vertical dimension (length from the top surface 15 to the bottom surface 17) of the first mat layer region 57 is set as a desired friction coefficient when the shortest distance from the top surface 15 to the bottom surface 17 is 100%. From the viewpoint of preventing collapse, each is 5% or more and 30% or less, preferably 5% or more and 20% or less, and more preferably 5% or more and 15% or less. Further, the total of the vertical dimensions of the plurality of first mat layer regions 57 is preferably 10% or more, more preferably 15% or more, still more preferably 15% or more from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. It is 30% or more, preferably 80% or less, more preferably 75% or less, further preferably 70% or less, and preferably 10 to 80%, more preferably 15%. It is 75% or more, more preferably 30% or more and 70% or less.
  • the number of the first mat layer regions on the front surface 7 and the back surface 9 is preferably 2 or more, more preferably 15 or more, and 15 from the viewpoint of obtaining a desired friction coefficient and preventing load collapse.
  • the number is preferably 10 or less, more preferably 2 or more and 15 or less, and more preferably 4 or more and 10 or less.
  • the vertical dimension of the second mat layer region 59 is preferably 60% or more, preferably 80% or more, from the viewpoint that the average value of the vertical dimensions of each mat layer region is a desired friction coefficient and prevents load collapse. More preferably, it is more preferably 90% or more, more preferably 100% or less, and preferably 60% or more and 100% or less, and 80% or more and 100% or less. More preferably, it is 90% or more and 100% or less.
  • the lateral dimension of the second mat layer region 59 is preferably 5% or more, preferably 30% or less, and 20% or less, respectively, from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. It is more preferably 15% or less, more preferably 5% or more and 30% or less, more preferably 5% or more and 20% or less, still more preferably 5% or more and 15% or less. Is.
  • the total lateral mating ratio of the second mat layer regions 59 on the first and second side surfaces 11 and 13, that is, the total lateral dimensions of the plurality of second mat layer regions 59 is the first mat layer region. It is 10% or more from the viewpoint of preventing the load from collapsing with a desired friction coefficient on the assumption that the lateral dimension of the above is smaller than the average value of the ratio of the ratio to the shortest distance from the first side surface 11 to the second side surface 13. It is preferably 15% or more, more preferably 30% or more, further preferably 80% or less, more preferably 75% or less, and more preferably 70% or less. It is more preferably 10 to 80%, more preferably 15% or more and 75% or less, still more preferably 30% or more and 70% or less.
  • the number of the second mat layer regions on the top surface 15 and the bottom surface 17 is preferably 3 or more, more preferably 15 or more, and 15 or more, from the viewpoint of obtaining a desired friction coefficient and preventing load collapse.
  • the number is preferably less than, more preferably 10 or less, preferably 2 or more and 15 or less, and more preferably 3 or more and 10 or less.
  • the packaging structure 1 of the fourth embodiment has the above-described configuration, when a plurality of packaging structures 1 are arranged side by side, the bottom surface of the package is the front surface of one package and the back surface of the other package. Since the friction in the direction from the top surface to the top surface is larger than the friction in the above direction between the side surface of one package and the side surface of the other package, the display state of the plurality of flatly stacked packaging structures 1 is not destroyed. , Can be housed in the cardboard box 53 in the state shown in FIG.
  • the pack pressure inside the package is preferably 1.2 kPa or more, preferably 1.5 kPa or more, from the viewpoint of preventing the load from collapsing and the ease of taking the package structure. Is more preferably 2.5 kPa or less, more preferably 2.2 kPa or less, and more preferably 1.2 kPa or more and 2.5 kPa or less, and more preferably 1.5 kPa or more and 2.2 kPa or less. Is.
  • the pack pressure inside the package was determined by measuring the compression characteristics with respect to the thickness of the diaper and converting it into a load corresponding to the thickness of the diaper inside the package.
  • the thickness of the diaper in the package was calculated from the package size and the number of sheets.
  • a packaging structure for an absorbent article in which the absorbent article is housed in a package wherein the package faces the front surface, the back surface facing the front surface, the first side surface, and the first side surface. It is a hexahedron consisting of a second side surface, a top surface, and a bottom surface facing the top surface, and the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is , 0.25 or more, preferably 0.25 or more and 0.50 or less, more preferably 0.30 or more and 0.40 or less.
  • the coefficient of static friction between the back of the package of one packaging structure and the front of the package of the other packaging structure is the first side of the package of one packaging structure and the second of the packaging of the other packaging structure.
  • the packaging structure according to ⁇ 1> which is 0.05 or more larger than the static friction coefficient with the side surface, preferably 0.05 or more and 0.50 or less, and preferably 0.10 or more and 0.30 or less. body.
  • the static friction coefficient between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is such that the first and second side surfaces of the one and the other packaging structure are laminated with the packaging structure.
  • the packaging structure according to ⁇ 1> or ⁇ 2> which is smaller than the static friction coefficient between the first and second side surfaces of the housing to be housed in the state and the surface facing the packaging structure side.
  • the coefficient of static friction between the packaging structure side surface of the housing and the first and second side surfaces of one and the other packaging structure is as large as 0.05 or more, preferably 0.05 or more and 0.50 or less.
  • ⁇ 5> The packaging structure according to any one of ⁇ 1> to ⁇ 4>, wherein each surface of the package includes a mat layer having irregularities on the outermost layer.
  • the number of printed lines of the first and second side surface mat layers is 40% to 90%, preferably 50 to 80%, and more preferably 60 to 80% of the number of printed lines of the front and back mat layers.
  • the packaging structure according to one. ⁇ 8> The packaging structure according to ⁇ 7>, wherein the material of the film base material is one or more selected from polyethylene, polyamide, polyester, polybutylene terephthalate, and polyethylene terephthalate.
  • the mat layer is an acrylic resin, an epoxy resin, a urethane resin, a polyolefin resin, in which a matting agent selected from silica, alumina, calcium oxide, calcium carbonate, calcium sulfate, calcium silicate, and carbon black is dispersed.
  • the front and back surfaces of the package include a plurality of first mat layer regions consisting of mat layers extending from the first side surface toward the second side surface, and the first and second side surfaces of the package are the top surface.
  • the pack pressure inside the package is preferably 1.2 kPa or more, more preferably 1.5 kPa or more, preferably 2.5 kPa or less, and more preferably 2.2 kPa or less.
  • Example 1 A polyethylene film used as a film base layer for a hexahedral packaging structure, silica (matting agent), one of the resin layer materials used as the resin layer 31, and a plurality of absorbent articles (diapers) were prepared. .. Next, a mat layer having the same number of printed lines (400 lines) was formed on each surface of the film base material layer (polyethylene film) by using a matting agent and a resin layer material. Subsequently, a mat layer is formed on a polyethylene film to form a bag-shaped (storable shape) package, and a plurality of absorbent articles are housed in this package to form the packaging structure of Example 1. Manufactured.
  • Example 2 The same materials as in Example 1 were prepared. Next, a matte layer having the same number of printing lines (400 lines) is formed on the front surface, back surface, top surface, and bottom surface of the hexahedral polyethylene film using a matting agent and a resin layer material, and the first and first polyethylene films are formed. A matte layer having about 63% of the printing lines (250 lines) of the above four sides was formed on the side surface of No. 2 to form a package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 2.
  • a matte layer having the same number of printing lines 400 lines
  • a matte layer having about 63% of the printing lines (250 lines) of the above four sides was formed on the side surface of No. 2 to form a package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 2.
  • Example 3 The same materials as in Example 1 were prepared. Next, a plurality of first mat layer regions 57 as shown in FIG. 6 are formed on the front surface and the back surface of the hexahedral polyethylene film, and a plurality of first mat layer regions 57 are formed on the first and second side surfaces of the polyethylene film. The mat layer region 59 of 2 was formed to form a package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 3.
  • each lateral dimension of the first mat layer region 57 is 100% when the shortest distance from the first side surface to the second side surface is 100%, and the plurality of first mat layer regions 57
  • the total vertical dimension of the above was 60% when the shortest distance from the top surface to the bottom surface was 100%.
  • each vertical dimension of the second mat layer region 59 is 100% when the shortest distance from the top surface to the bottom surface is 100%, and the total of the horizontal dimensions of the plurality of second mat layer regions is It was 50% when the shortest distance from the first side surface to the second side surface was 100%.
  • Example 4 The same materials as in Example 1 were prepared. Then, a package having a higher mat density in the plurality of first mat layer regions 57 and the plurality of second mat layer regions 59 than in Example 3 was constructed. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 4. Mat concentration was higher than that of Example 3 a matting agent content Tree fat layer.
  • Example 5 The same materials as in Example 1 were prepared. Then, as in Example 3, a plurality of first mat layer regions 57 are formed on the front surface and the back surface of the polyethylene film, and the first and second side surfaces form a non-matte package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 5. The pack pressure inside the package in the packaging structures of Examples 1 to 5 was 1.8 kPa.
  • Comparative Example 1 A hexahedral film substrate layer using a polyethylene film and a plurality of absorbent articles (diapers) were prepared. A package was constructed without forming a mat layer on this film base material layer. Next, a plurality of absorbent articles were housed in this package to produce four packaging structures of Comparative Example 1.
  • Comparative Example 2 The same materials as in Example 1 were prepared. Next, a second mat layer region 59 is formed on the front surface and the back surface of the hexahedral film base material layer using the polyethylene film of Example 3, and the first and second side surfaces of the hexahedral film base material layer are formed. A plurality of first mat layer regions 57 were formed to form a package. Subsequently, a plurality of absorbent articles were housed in the package to produce four packaging structures of Comparative Example 2.
  • each vertical dimension of the second mat layer region is 100% when the shortest distance from the top surface to the bottom surface is 100%, and the total of the horizontal dimensions of the plurality of second mat layer regions is It was 50% when the shortest distance from the first side surface to the second side surface was 100%.
  • each horizontal dimension of the first mat layer region is 100% when the shortest distance from the first side surface to the second side surface is 100%, and the vertical dimension of the plurality of first mat layer regions. The total was 60% when the shortest distance from the top surface to the bottom surface was 100%.
  • Evaluation 1 Evaluation of the difficulty of collapsing the packaging structure
  • the packaging structures of Examples 1 to 5 and Comparative Examples 1 and 2 are placed on a desk (not shown) at a height of about the waist of the tester.
  • An evaluation test was conducted in which four pieces were stacked in a flat stack, and hands were placed on both sides of the bottom packaging structure, and an external force was applied to move a distance of 50 cm within 5 seconds.
  • the evaluation test was repeated 5 times by the same tester, and the average value of the 4-step score was calculated.
  • the 4-step score is a judgment of the alignment of the packaging structure 1 before and after the movement based on the following criteria.
  • 1 means that the packaging structure stacked on the upper side collapses
  • 2 means that the packaging structure stacked on the upper side is greatly displaced
  • 3 means that the packaging structure stacked on the upper side is slightly displaced.
  • the aligned state of the packaging structure stacked on the upper side was maintained.
  • the size of the packaging structure 1 in which four were stacked was 50 cm ⁇ 38 cm ⁇ 35.5 cm (H ⁇ L ⁇ T in FIG. 7 (A)).
  • Evaluation 2 (Easy to put in cardboard box) As shown in FIG. 8A, four packaging structures 1 are stacked flat on the lid on one side of the cardboard box 53, and the front surface (top) of the bottom packaging structure 1 is stacked. An evaluation test was conducted in which the packaging structure 1 was pushed into the bottom surface 53a of the cardboard box 53 within 3 seconds with one hand attached to the surface 15) ((B) in FIG. 8). The evaluation test was repeated 5 times by the same tester, and the average value of the 4-step score was calculated. With the 4-step score, the alignment state of the packaging structure 1 at that time was judged according to the following criteria.
  • 1 means that the packaging structure stacked on the upper side collapses
  • 2 means that the packaging structure stacked on the upper side greatly shifts
  • 3 means the packaging structure stacked on the upper side.
  • the packaging structure stacked on the upper side was kept aligned.
  • the internal dimensions of the cardboard box were 51 cm ⁇ 39 cm ⁇ 36 cm (H ⁇ L ⁇ T in FIG. 8 (A)).
  • Table 1 The results of evaluations 1 and 2 are shown in Table 1 below together with the measurement results of the static friction coefficient of the packages of the packaging structures of Examples 1 to 5 and Comparative Examples 1 and 2.
  • A is the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure
  • B is the first package of one packaging structure.
  • C is the static friction coefficient between the packaging structure side surface of the cardboard box and the front and back surfaces of the packaging structure
  • D is the corrugated cardboard. The static friction coefficient between the packaging structure side surface of the box and the side surface of the packaging structure is shown.
  • the static friction coefficients A and B indicate the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure
  • the static friction coefficients C and D are the side surfaces of the package of one packaging structure. And the one on the side of the package of the other packaging structure.
  • the packaging structures of Examples 1 to 5 and the packaging structures of Comparative Examples 1 and 2 are compared, the packaging structures of Examples 1 to 5 are each a package of one packaging structure. Since the static friction coefficient between the back surface of the package and the front surface of the package of the other packaging structure is 0.25 or more, the packaging of the first embodiment is carried out from the flatly stacked display state as shown in FIG. 3 (B). From the results of evaluation 1, it was confirmed that the packaging structure 1 is unlikely to collapse when the structure 1 is pulled out in order from the highest or lowest structure.
  • the packaging structure of Example 2 is the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure. Since the static friction coefficient between the two is greater than the static friction coefficient between the first side surface of the package of one packaging structure and the second side surface of the package of the other packaging structure by 0.05 or more, the stacking is flat. From the results of Evaluation 2, it was confirmed that the plurality of packaging structures 1 can be housed in the corrugated cardboard box 53 in the state shown in FIG. 5 without destroying the display state.
  • the packaging structure of Example 3 has a rectangular shape in which the front surface and the back surface of the package extend from the first side surface to the second side surface.
  • a plurality of first mat layer regions 57 composed of a mat layer having a shape are provided, and a plurality of second mat layer regions 59 composed of a rectangular mat layer extending from a top surface to a bottom surface are provided on the first and second side surfaces of the package. From the results of Evaluation 2, it was confirmed that the plurality of flatly stacked packaging structures 1 can be housed in the corrugated cardboard box 53 in the state shown in FIG. 5 without breaking the display state.
  • Example 3 Comparing the packaging structure of Example 3 and the packaging structure of Example 4, the static friction values of the first mat layer region 57 and the second mat layer region 59 of Example 4 are higher than those of Example 3. Since it is large, the result of evaluation 1 was confirmed. Comparing the packaging structure of Example 4 with the packaging structure of Example 5, the result of Evaluation 1 was confirmed in Example 5 because the static friction value of each side surface was lower than that of Example 4.
  • the packaging structure of the absorbent article of the present invention does not easily collapse in a stacked state.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Wrappers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

This packaging structure (1) for an absorbent article is configured by housing an absorbent article (3) in a package (5). The package (5) is a hexahedron consisting of a front face (7), a back face (9) opposing the front face, a first side face (11), a second side face (13) opposing the first side face, a top face (15), and a bottom face (17) opposing the top face (15). The coefficient of static friction between a back face (9a) of a package (5a) of one packaging structure (1a) and a front face (7b) of a package (5b) of another packaging structure (1b), which are adjacent to each other, is 0.25 or more.

Description

吸収性物品の包装構造体Packaging structure for absorbent articles

 本発明は、吸収性物品の包装構造体に関し、より詳しくは、吸収性物品をパッケージに収容して成る吸収性物品の包装構造体に関する。 The present invention relates to a packaging structure for an absorbent article, and more particularly to a packaging structure for an absorbent article formed by housing the absorbent article in a package.

 一般に、吸収性物品が収容され、外面が印刷されたパッケージを備える包装構造体が知られている。例えば特許文献1には、正面、背面、2つの側面、天面及び底面を備えた六面体のパッケージに吸収性物品を収納した包装構造体が開示されている。 Generally, a packaging structure in which an absorbent article is housed and a package having a printed outer surface is known is known. For example, Patent Document 1 discloses a packaging structure in which an absorbent article is housed in a hexahedral package having a front surface, a back surface, two side surfaces, a top surface, and a bottom surface.

 包装構造体は、店舗へ搬送され、パッケージの底面を下にした状態、すなわち縦置きした状態で、あるいはパッケージの背面を下にした状態、すなわち平積みした状態で店舗の棚等に陳列される。このような包装構造体のパッケージの外面には、どのような陳列状態にあっても収容された吸収性物品の種類等の情報を認識できるように、パッケージの各面に吸収性物品の品種(テープ型、パンツ型等)やサイズ等を表す情報が表示される。 The packaging structure is transported to the store and displayed on the shelves of the store with the bottom of the package facing down, that is, vertically placed, or with the back of the package facing down, that is, in a flat stacking state. .. On the outer surface of the package of such a packaging structure, a variety of absorbent articles (types of absorbent articles) can be recognized on each surface of the package so that information such as the type of the absorbent articles housed can be recognized regardless of the display state. Information indicating the tape type, pants type, etc.) and size is displayed.

特開2011-111165号公報Japanese Unexamined Patent Publication No. 2011-11165

 本発明は、吸収性物品の包装構造体に関する。本発明の包装構造体は、吸収性物品をパッケージに収容して成る。前記パッケージは、正面と、正面に対向する背面と、第1の側面と、第1の側面に対向する第2の側面と、天面と、天面に対向する底面とからなる六面体である。一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、0.25以上である。 The present invention relates to a packaging structure for absorbent articles. The packaging structure of the present invention comprises an absorbent article housed in a package. The package is a hexahedron composed of a front surface, a back surface facing the front surface, a first side surface, a second side surface facing the first side surface, a top surface, and a bottom surface facing the top surface. The coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is 0.25 or more.

図1の(A)は、本発明の実施の形態1にかかる吸収性物品の包装構造体の内部を示す斜視図、図1の(B)は、本発明の実施の形態1にかかる吸収性物品の包装構造体の外部を示す斜視図である。FIG. 1 (A) is a perspective view showing the inside of the packaging structure of the absorbent article according to the first embodiment of the present invention, and FIG. 1 (B) is the absorbent according to the first embodiment of the present invention. It is a perspective view which shows the outside of the packaging structure of an article. 図2は、本発明の実施の形態に係る図1(B)のA-A線断面図である。FIG. 2 is a sectional view taken along line AA of FIG. 1 (B) according to the embodiment of the present invention. 図3の(A)は、本発明の実施の形態にかかる吸収性物品の包装構造体を縦置きした状態を示す斜視図、図3の(B)は、本発明の実施の形態にかかる吸収性物品の包装構造体を平積みした状態を示す斜視図である。FIG. 3A is a perspective view showing a state in which the packaging structure of the absorbent article according to the embodiment of the present invention is vertically placed, and FIG. 3B is an absorption according to the embodiment of the present invention. It is a perspective view which shows the state which the packaging structure of a sex article is stacked flat. 図4は、静摩擦係数の測定方法を示す図である。FIG. 4 is a diagram showing a method for measuring the coefficient of static friction. 図5は、複数の包装構造体を収容する収容体の一例である段ボール箱に収容した状態を示す図である。FIG. 5 is a diagram showing a state of being housed in a corrugated cardboard box, which is an example of a body containing a plurality of packaging structures. 図6は、本発明の実施の形態4にかかる吸収性物品の包装構造体を示す斜視図である。FIG. 6 is a perspective view showing a packaging structure of an absorbent article according to a fourth embodiment of the present invention. 図7の(A)及び(B)は、包装構造体の崩れ難さを評価する様子を示す図である。FIGS. 7A and 7B are views showing how to evaluate the difficulty of collapsing the packaging structure. 図8の(A)及び(B)は、包装構造体の段ボール箱への入れ易さを評価する様子を示す図である。8 (A) and 8 (B) are views showing how to evaluate the ease of putting the packaging structure into the corrugated cardboard box.

発明の詳細な説明Detailed description of the invention

 ところで、包装構造体は、陳列時に荷崩れを生じることがある。例えば、パッケージを平積みした状態で積み重ねる陳列方法においては、複数を積み重ねた状態のまま移動させたり、陳列状態から包装構造体を取り出す際に、包装構造体の陳列状態の乱れや荷崩れが生じ易い。 By the way, the packaging structure may collapse during display. For example, in the display method in which packages are stacked in a flat stacking state, when a plurality of packages are moved in a stacked state or when the packaging structure is taken out from the display state, the display state of the packaging structure is disturbed or the load collapses. easy.

 本発明は、上述した従来技術が有する欠点を解消し得る包装構造体に関する。 The present invention relates to a packaging structure capable of eliminating the above-mentioned drawbacks of the prior art.

 以下、本発明の実施の形態について説明する。
 [実施の形態1]
 図1の(A)に示すように、包装構造体1は、複数の吸収性物品3とパッケージ5とを備える。複数の吸収性物品3は、パッケージ5によって包装されている。吸収性物品3は、例えば、おむつ又はナプキン等である。
Hereinafter, embodiments of the present invention will be described.
[Embodiment 1]
As shown in FIG. 1A, the packaging structure 1 includes a plurality of absorbent articles 3 and a package 5. The plurality of absorbent articles 3 are packaged in a package 5. The absorbent article 3 is, for example, a diaper or a napkin.

 パッケージ5は、正面7と、正面7に対向する背面9と、第1の側面11と、第1の側面11と対向する第2の側面13と、天面15と、天面15に対向する底面17とからなる六面体である。パッケージ5の各面は、最外層にマット層19を備え、第1の側面11は、マット層19と、非マット層領域21aとを備える。また、パッケージ5は、図1の(B)に示すように、正面7に非マット層領域21bを、第1の側面11に非マット層領域21cを、第2の側面13に非マット層領域21dを、天面15に非マット層領域21eを備える。非マット層領域21aには、例えばパッケージ5によって包装されている複数の吸収性物品3のサイズや枚数が記載される。非マット層領域21b~21eには、例えば吸収性物品3のロゴタイプ等が記載される。 The package 5 faces the front surface 7, the back surface 9 facing the front surface 7, the first side surface 11, the second side surface 13 facing the first side surface 11, the top surface 15, and the top surface 15. It is a hexahedron composed of a bottom surface 17. Each surface of the package 5 includes a matte layer 19 on the outermost layer, and the first side surface 11 includes a matte layer 19 and a non-matte layer region 21a. Further, as shown in FIG. 1B, the package 5 has a non-matte layer region 21b on the front surface 7, a non-matte layer region 21c on the first side surface 11, and a non-matte layer region on the second side surface 13. 21d is provided with a non-matte layer region 21e on the top surface 15. In the non-matte layer region 21a, for example, the size and the number of a plurality of absorbent articles 3 packaged by the package 5 are described. In the non-matte layer regions 21b to 21e, for example, the logotype of the absorbent article 3 and the like are described.

 図2に示すように、パッケージ5は、包装構造体1に使用される場合に内側となる面(吸収性物品側表面23)から外側となる面に向かって、フィルム基材層25、インク層27、及びマット層19の順で積層されている。 As shown in FIG. 2, the package 5 has a film base material layer 25 and an ink layer from the inner surface (absorbent article side surface 23) to the outer surface when used for the packaging structure 1. 27 and the mat layer 19 are laminated in this order.

 フィルム基材層25は、パッケージ5が包装構造体1に用いられた際に形状や強度を保つための基礎となる材料である。フィルム基材層25は、柔軟性及び強度のあるフィルム材料で構成されるのが好ましい。柔軟性及び強度のあるフィルム材料としては、例えば、ポリエチレン、ポリアミド、ポリエステル、ポリブチレンテレフタレート、ポリエチレンテレフタレート等が挙げられる。また、フィルム基材層25は、単層であってもよいし、同一又は異なる材料からなる複数の層を有する積層フィルムであってもよい。 The film base material layer 25 is a basic material for maintaining the shape and strength when the package 5 is used for the packaging structure 1. The film substrate layer 25 is preferably made of a flexible and strong film material. Examples of the flexible and strong film material include polyethylene, polyamide, polyester, polybutylene terephthalate, polyethylene terephthalate and the like. Further, the film base material layer 25 may be a single layer or a laminated film having a plurality of layers made of the same or different materials.

 インク層27は、模様、絵柄、文字等の吸収性物品3に関する情報をパッケージ5に付与するための層である。インク層27の材料は、インク組成物である。インク組成物は、例えば、カーボンブラック、ジアミン、ポリオール、硬化剤及び有機溶媒等を含有する。
 硬化剤は、例えば、イソシアネートである。有機溶媒は、例えば、トルエンである。インク層27は、例えばグラビア印刷法等により、フィルム基材層25の表面に所望の模様、絵柄、文字等を表示するように上記組成物を印刷する(塗布する)ことによって形成することができる。
The ink layer 27 is a layer for imparting information on the absorbent article 3 such as a pattern, a pattern, and characters to the package 5. The material of the ink layer 27 is an ink composition. The ink composition contains, for example, carbon black, diamine, polyol, curing agent, organic solvent and the like.
The curing agent is, for example, isocyanate. The organic solvent is, for example, toluene. The ink layer 27 can be formed by printing (applying) the above composition on the surface of the film base material layer 25 so as to display a desired pattern, pattern, characters, etc., for example, by a gravure printing method or the like. ..

 マット層19は、パッケージ5の最外層として設けられている。マット層19は、パッケージ5の表面に微細な凹凸を作り、パッケージ同士の摩擦係数を所望の値とすることができる。マット層19は、マット剤29を分散させた樹脂層31である。
 静摩擦系係数を所望の値とするには、マット剤29の形状、粒径等にもよるが、マット剤の配合量を増減して適切な量とすることが好ましく、例えばマット剤は樹脂層中にマット剤と樹脂の合計重量に対して、1質量%以上20質量%以下含有することが好ましく、5質量%以上15質量%以下含有することがより好ましい。また、所望の静摩擦系係数とする観点からは、マット剤粒径は、0.1μm以上50μm以下であることが好ましい。
 例えば、マット剤29は、シリカ、アルミナ、酸化カルシウム、炭酸カルシウム、硫酸カルシウム、ケイ酸カルシウム、カーボンブラックが好ましく、シリカがより好ましい。樹脂層31は、例えば、アクリル系樹脂、エポキシ系樹脂、ウレタン系樹脂、ポリオレフィン系樹脂、フッ素系樹脂、フェノキシ系樹脂、シリコーン系樹脂から形成される。
The mat layer 19 is provided as the outermost layer of the package 5. The mat layer 19 has fine irregularities on the surface of the package 5, and the coefficient of friction between the packages can be set to a desired value. The mat layer 19 is a resin layer 31 in which the matting agent 29 is dispersed.
In order to set the static friction coefficient to a desired value, it is preferable to increase or decrease the blending amount of the matting agent to an appropriate amount, although it depends on the shape and particle size of the matting agent 29. For example, the matting agent is a resin layer. It is preferably contained in an amount of 1% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 15% by mass or less, based on the total weight of the matting agent and the resin. Further, from the viewpoint of obtaining a desired coefficient of static friction system, the particle size of the matting agent is preferably 0.1 μm or more and 50 μm or less.
For example, as the matting agent 29, silica, alumina, calcium oxide, calcium carbonate, calcium sulfate, calcium silicate, and carbon black are preferable, and silica is more preferable. The resin layer 31 is formed of, for example, an acrylic resin, an epoxy resin, a urethane resin, a polyolefin resin, a fluorine resin, a phenoxy resin, or a silicone resin.

 マット層19では、図2に示すように、複数のマット剤29が樹脂層31から外側にはみ出ていることにより表面に微細な凹凸が形成されている。この微細な凹凸によりパッケージ同士の摩擦を高めることができる。また、マット層19の印刷版の線数やマット材の濃度により、表面に形成される凹凸の密度を調整可能であり、パッケージ同士の摩擦力を変化させることが可能である。
 マット層19の印刷の線数を多くすると摩擦力が大きくなり、印刷の線数を少なくすると摩擦力が小さくなる。また、マット層19の凹凸の密度を密にする摩擦力が大きくなり、凹凸の密度を疎にすると摩擦力が小さくなる。
As shown in FIG. 2, the mat layer 19 has fine irregularities formed on the surface due to the plurality of matting agents 29 protruding outward from the resin layer 31. Friction between packages can be increased by this fine unevenness. Further, the density of the unevenness formed on the surface can be adjusted by adjusting the number of lines of the printing plate of the mat layer 19 and the density of the mat material, and the frictional force between the packages can be changed.
When the number of printed lines of the mat layer 19 is increased, the frictional force is increased, and when the number of printed lines is decreased, the frictional force is decreased. Further, the frictional force for increasing the density of the unevenness of the mat layer 19 increases, and the frictional force decreases when the density of the unevenness is made sparse.

 このような実施の形態1の包装構造体1において、図3の(A)に示すように、一方の包装構造体1aと他方の包装構造体1bは、例えば、店舗等の陳列棚(図示せず)に、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとが接触し、各底面17a、17bを下にした状態、すなわち縦置きした状態で陳列される。あるいは図3の(B)に示すように、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとを下にした状態、すなわち平積みした状態で店舗の棚等に陳列される。 In the packaging structure 1 of the first embodiment, as shown in FIG. 3A, one packaging structure 1a and the other packaging structure 1b are, for example, display shelves of a store or the like (shown). The back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are in contact with each other, and the bottom surfaces 17a and 17b are turned down, that is, vertically placed. It will be displayed at. Alternatively, as shown in FIG. 3B, the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are turned down, that is, in a flat stacking state. It is displayed on the shelves of stores.

 実施の形態1の包装構造体1において、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとの間の静摩擦係数は、荷崩れを防止する観点から0.25以上であり、好ましくは0.30以上であり、また、上限値は特に制限はないが、パッケージの取りやすさの観点から0.50以下が好ましく、0.40以下がより好まく、0.35以下がより好ましく、そして、好ましくは0.25以上0.50以下であり、より好ましくは0.30以上0.40以下、より好ましくは0.30以上0.35以下である。 In the packaging structure 1 of the first embodiment, the coefficient of static friction between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is a viewpoint of preventing the load from collapsing. 0.25 or more, preferably 0.30 or more, and the upper limit is not particularly limited, but 0.50 or less is preferable, and 0.40 or less is more preferable from the viewpoint of ease of packaging. It is more preferably 0.35 or less, and preferably 0.25 or more and 0.50 or less, more preferably 0.30 or more and 0.40 or less, and more preferably 0.30 or more and 0.35 or less. ..

 このような実施の形態1の包装構造体1は、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとが接触した状態から外力が加えられてもずれ難いため、陳列時に荷崩れし難い。例えば、実施の形態1の包装構造体1は、図3の(A)に示すような複数の包装構造体1が、隣り合わせで並べられた陳列状態、あるいは図3の(B)に示すような隣り合わせで積層された陳列状態から取り出すことが考えられる。より具体的には、図3の(A)に示す陳列状態の場合は、隣り合うパッケージのうち、最前列のものから手前に引いて取り出し、図3の(B)に示す陳列状態の場合は、隣り合うパッケージのうち最上位のもの又は最下位のものから順次手前に引いて取り出す。
 このように、実施の形態1の包装構造体1を陳列状態から取り出す際に包装構造体が荷崩れし難く、積み直す作業等の時間も必要としない。さらに、実施の形態1の包装構造体1は、陳列状態が乱れ難いため、外観性を損なわず、崩れた包装構造体1が影となって、内容部の情報が見え難くなるという問題もない。
 加えて、実施の形態1の包装構造体1は、パッケージ5の最外層にマット層19を備えることによって、ユーザの購買意欲を高めることもできる。
In the packaging structure 1 of the first embodiment, an external force is applied from a state where the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b are in contact with each other. Since it does not easily slip off, it does not easily collapse during display. For example, in the packaging structure 1 of the first embodiment, a plurality of packaging structures 1 as shown in FIG. 3A are displayed side by side, or as shown in FIG. 3B. It is conceivable to take out from the display state in which they are stacked side by side. More specifically, in the case of the display state shown in FIG. 3 (A), the adjacent packages are pulled out from the front row and taken out, and in the case of the display state shown in FIG. 3 (B). , Pull out the adjacent packages in order from the top or bottom.
As described above, when the packaging structure 1 of the first embodiment is taken out from the display state, the packaging structure is less likely to collapse and does not require time for reloading. Further, since the packaging structure 1 of the first embodiment does not easily disturb the display state, there is no problem that the appearance is not impaired and the collapsed packaging structure 1 becomes a shadow and the information of the content portion becomes difficult to see. ..
In addition, the packaging structure 1 of the first embodiment can increase the purchasing motivation of the user by providing the mat layer 19 on the outermost layer of the package 5.

 上述した静摩擦係数は、JIS-K7125 プラスチック-フィルムおよびシート摩擦係数試験方法に準拠し、例えば、図4に示すような測定装置37を用いて測定することができる。測定装置37は、試験台39と、試験台39上に設置された滑車41と、滑車41に架けられたワイヤ43と、ワイヤ43の一端に取り付けられ試験台39上に配置された重り45を備えている。滑車41は、回転の軸を固定した定滑車である。第1サンプル47は、重り45の測定面(接触面)に固定する。第2サンプル49は、試験台39に設けられた周知の固定具などで、重り45の測定面(接触面)と対面する試験台39の上面に固定する。 The above-mentioned static friction coefficient conforms to the JIS-K7125 plastic-film and sheet friction coefficient test method, and can be measured using, for example, a measuring device 37 as shown in FIG. The measuring device 37 includes a test table 39, a pulley 41 installed on the test table 39, a wire 43 hung on the pulley 41, and a weight 45 attached to one end of the wire 43 and arranged on the test table 39. I have. The pulley 41 is a fixed pulley having a fixed axis of rotation. The first sample 47 is fixed to the measurement surface (contact surface) of the weight 45. The second sample 49 is fixed to the upper surface of the test table 39 facing the measurement surface (contact surface) of the weight 45 with a well-known fixture or the like provided on the test table 39.

 ワイヤ43の他端には、スプリング51を介して引張試験機(図示せず)に接続されている。スプリング51は、重り45が動き始めるときの衝撃を吸収する。引張試験機は、例えばオートグラフ(株式会社島津製作所、型番AG-X)である。
 重り45は、190gの重量を有し、平面視において30mm×100mm(縦×横)の測定面寸法を有する。測定面寸法において、横とは重り45が移動する方向への寸法である。
The other end of the wire 43 is connected to a tensile tester (not shown) via a spring 51. The spring 51 absorbs the impact when the weight 45 starts to move. The tensile tester is, for example, an autograph (Shimadzu Corporation, model number AG-X).
The weight 45 has a weight of 190 g and has a measurement surface dimension of 30 mm × 100 mm (length × width) in a plan view. In the measurement surface dimension, the lateral direction is a dimension in the direction in which the weight 45 moves.

 第1サンプル47がフィルム状である場合、第1サンプル47の非測定面である重り45側にエアスルー不織布(坪量:20g/m2)を貼り付けて介在させて第1サンプル47を重り45に固定する。第2サンプル49がフィルム状である場合、第2サンプル49の非測定面である試験台39側にエアスルー不織布(坪量:20g/m2)を貼り付けて介在させて試験台39の上面に固定する。
 第1サンプル47は、横寸法は、重り45の測定面(接触面)のサイズと同じサイズ(100mm)とし、縦寸法は、錘の測定面(接触面)のサイズよりも大きいサイズ(60mm)とし、錘に、縦方向に巻き付けた状態として固定した。錘の測定面(接触面)に位置する部分のサイズは、平面視において30mm×100mm(縦×横)である。第2サンプル49のサイズは、重り45の測定面(接触面)のサイズと同じかそれより大きいサイズとし、例えば縦250mm×150mm(縦×横)である。
When the first sample 47 is in the form of a film, an air-through non-woven fabric (basis weight: 20 g / m2) is attached to the weight 45 side, which is the non-measurement surface of the first sample 47, and the first sample 47 is placed on the weight 45. Fix it. When the second sample 49 is in the form of a film, an air-through non-woven fabric (basis weight: 20 g / m2) is attached to the test table 39 side, which is the non-measurement surface of the second sample 49, and fixed to the upper surface of the test table 39. To do.
The horizontal dimension of the first sample 47 is the same size (100 mm) as the size of the measurement surface (contact surface) of the weight 45, and the vertical dimension is a size (60 mm) larger than the size of the measurement surface (contact surface) of the weight. Then, it was fixed around the weight in a vertically wound state. The size of the portion of the weight located on the measurement surface (contact surface) is 30 mm × 100 mm (length × width) in a plan view. The size of the second sample 49 is the same as or larger than the size of the measurement surface (contact surface) of the weight 45, and is, for example, 250 mm × 150 mm (length × width).

 一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数を測定する場合、第1のサンプルを切り出す包装構造体と、第2のサンプルを切り出す包装構造体とは別の包装構造体であっても良いが、同一構成の包装構造体が正面の向きを揃えて隣り合わせで積層されているか又は積層されることが予定されている場合、一つの包装構造体の正面及び背面のいずれか一方から第1のサンプルを切り出し、他方から第2のサンプルを切り出してもよい。
 また、パッケージの静摩擦係数を測定する正面及び背面の一方又は双方にマット領域と非マット領域とが混在するような場合は、各面それぞれを、天面側の端から底面側の端までの距離を3等分して第1、第2及び第3の3つの領域に区分し、各領域の中央部から切り出したサンプルを用いて、第1領域どうしの摩擦係数、第2領域どうしの摩擦係数、第3領域どうしの摩擦係数を測定する。そして、それらの平均値を、静摩擦係数値とする。
 パッケージにおける表面状態が一様である面や、内面の表面状態が通常一様である段ボール箱については、任意の場所からサンプルを切り出すことができる。
 測定装置37の引張試験機を駆動させて、スプリング51及びワイヤ43を介して、第1サンプル47を巻き付けて固定した重り45に300mm/分の引張速度で外力を加える。外力は徐々に増加して第1サンプル47に摩擦を与え、最大荷重に達する。最大荷重に達した直後、重りが動き始める。この最大荷重は静摩擦力として表される。
When measuring the static friction coefficient between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure, the packaging structure for cutting out the first sample and the packaging structure for cutting out the second sample. Although it may be a different packaging structure from the above, if packaging structures having the same configuration are laminated side by side with the front orientation aligned or are planned to be laminated, one packaging structure is used. The first sample may be cut out from either the front or the back surface of the above, and the second sample may be cut out from the other.
If the matte area and the non-matte area are mixed on one or both of the front and back surfaces for measuring the coefficient of static friction of the package, the distance from the top surface side edge to the bottom surface side edge of each surface. Is divided into three equal parts, and the first, second, and third regions are divided into three regions. Using a sample cut out from the center of each region, the coefficient of friction between the first regions and the coefficient of friction between the second regions are used. , Measure the coefficient of friction between the third regions. Then, the average value thereof is used as the static friction coefficient value.
For a surface of a package having a uniform surface condition or a cardboard box having a normally uniform inner surface condition, a sample can be cut out from any place.
The tensile tester of the measuring device 37 is driven to apply an external force at a tensile speed of 300 mm / min to the weight 45 around which the first sample 47 is wound and fixed via the spring 51 and the wire 43. The external force gradually increases to give friction to the first sample 47 and reach the maximum load. Immediately after reaching the maximum load, the weight begins to move. This maximum load is expressed as static friction.

 続いて、下記式(1)によって静摩擦係数を求める。
 μS=FS/FP    ・・・(1)
 上記式(1)において、μSは静摩擦係数であり、FSは静摩擦力[N]であり、FPは重り45の質量によって生じる法線力(=1.86[N])である。
Subsequently, the coefficient of static friction is obtained by the following equation (1).
μS = FS / FP ・ ・ ・ (1)
In the above formula (1), μS is a static friction coefficient, FS is a static friction force [N], and FP is a normal force (= 1.86 [N]) generated by the mass of the weight 45.

 本発明は、上述した実施の形態に限らず、本発明の要旨を逸脱しない範囲で種々変形可能である。以下に本発明の形態の変形例を説明するが、以下に説明する変形例において、上述した実施の形態と同一の作用効果を奏する部分には同一の符号を付することによりその部分の詳細な説明を省略し、以下の説明では実施の形態と主に異なる点を説明する。 The present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist of the present invention. A modified example of the embodiment of the present invention will be described below, but in the modified example described below, the portion exhibiting the same action and effect as that of the above-described embodiment is given the same reference numerals to detail the portion. The description is omitted, and the following description mainly describes the differences from the embodiments.

 [実施の形態2]
 実施の形態2の包装構造体1は、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとの間の静摩擦係数が、一方の包装構造体1aのパッケージ5aの第1の側面11aと他方の包装構造体1bのパッケージ5bの第2の側面13bとの間の静摩擦係数よりも0.05以上大きいことが荷崩れを防止する観点から好ましい、また、パッケージ6の取りやすさの観点から前記静摩擦係数は0.5以下であることが好ましい。
 一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとの間の静摩擦係数は、実施の形態1と同様に0.25以上であり、好ましくは0.30以上であり、また、上限値は特に制限はないが、0.50以下が好ましく、0.40以下がより好まく、0.35以下がより好ましく、そして、好ましくは0.25以上0.50以下であり、より好ましくは0.30以上0.40以下、より好ましくは0.30以上0.35以下である。
 一方の包装構造体1aのパッケージ5aの第1の側面11aと他方の包装構造体1bのパッケージ5bの第2の側面13bとの間の静摩擦係数は、0.05以上であることが好ましく、0.10以上であることがより好ましく、また、0.50以下であることが好ましく、0.30以下であることがより好ましく、そして、0.05以上0.50以下であり、好ましくは0.10以上0.30以下である。
[Embodiment 2]
In the packaging structure 1 of the second embodiment, the static friction coefficient between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is the one packaging structure 1a. It is preferable that the coefficient of static friction between the first side surface 11a of the package 5a and the second side surface 13b of the package 5b of the other packaging structure 1b is greater than 0.05 or more from the viewpoint of preventing the load from collapsing. From the viewpoint of ease of taking the package 6, the static friction coefficient is preferably 0.5 or less.
The coefficient of static friction between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b is 0.25 or more, preferably 0, as in the first embodiment. It is .30 or more, and the upper limit is not particularly limited, but 0.50 or less is preferable, 0.40 or less is more preferable, 0.35 or less is more preferable, and 0.25 or more and 0 is preferable. It is .50 or less, more preferably 0.30 or more and 0.40 or less, and more preferably 0.30 or more and 0.35 or less.
The coefficient of static friction between the first side surface 11a of the package 5a of one packaging structure 1a and the second side surface 13b of the package 5b of the other packaging structure 1b is preferably 0.05 or more, and is 0. .10 or more is more preferable, 0.50 or less is preferable, 0.30 or less is more preferable, and 0.05 or more and 0.50 or less is preferable. It is 10 or more and 0.30 or less.

 実施の形態2の包装構造体1において、第1及び第2の側面11a、13bの各マット層19の印刷線数は、正面7及び背面9のマット層19の印刷線数のそれぞれ40%であることが好ましく、50%以上であることがより好ましく、60%以上であることがさらに好ましく、また、90%以下であることが好ましく、80%以下であることがより好ましく、そして、40%~90%であることが好ましく、50~80%であることがより好ましく、60~80%であることがさらに好ましい。
 すなわち、第1及び第2の側面11、13の各マット層19の印刷線数は、インチ当たり175本以上であることが好ましく、200本以上であることがより好ましく、240本以上であることがさらに好ましく、また、500本以下であることが好ましく、460本以下であることがより好ましく、420本以下であることがさらに好ましく、そして、175本~500本であることが好ましく、200本~460本であることがより好ましく、240本~420本であることがさらに好ましい。
In the packaging structure 1 of the second embodiment, the number of printed lines of each mat layer 19 of the first and second side surfaces 11a and 13b is 40% of the number of printed lines of the mat layer 19 of the front surface 7 and the back surface 9, respectively. It is preferably 50% or more, more preferably 60% or more, more preferably 90% or less, more preferably 80% or less, and 40%. It is preferably ~ 90%, more preferably 50-80%, and even more preferably 60-80%.
That is, the number of printed lines of each of the matte layers 19 of the first and second side surfaces 11 and 13 is preferably 175 lines or more, more preferably 200 lines or more, and 240 lines or more per inch. Is more preferably 500 or less, more preferably 460 or less, further preferably 420 or less, and preferably 175 to 500, 200. The number is more preferably ~ 460, and even more preferably 240 to 420.

 このような実施の形態2の包装構造体1は、上述した構成を備えるため、図3の(B)に示すように実施の形態2の包装構造体1を積層して積み上げて1列としたものを並列配置した状態に陳列する際に、パッケージを重ねた状態で陳列棚へ差し込むときに、差し込むパッケージの側面と隣の列に積まれたパッケージの側面との摩擦が、積み重ねたパッケージの正面と背面との摩擦(静摩擦係数)よりも小さいので、積み重ねた差し込むパッケージ及び隣の列に陳列した包装構造体が崩れることなく、スムーズに陳列棚へ差し込むことができ、陳列の作業効率が良い。また、図3の(B)に示すような状態に陳列された際に、ユーザが一方の例の包装構造体1を抜き出して、隣の列に陳列した包装構造体1が一緒に抜き出てしまうことを防止することができる。 Since the packaging structure 1 of the second embodiment has the above-described configuration, the packaging structure 1 of the second embodiment is laminated and stacked to form a single row as shown in FIG. 3B. When displaying things in parallel, when inserting the packages into the display shelf with the packages stacked, the friction between the side of the package to be inserted and the side of the package stacked in the next row is the front of the stacked packages. Since it is smaller than the friction between the surface and the back surface (static friction coefficient), it can be smoothly inserted into the display shelf without collapsing the stacked packages to be inserted and the packaging structure displayed in the adjacent row, and the display work efficiency is good. Further, when the products are displayed in the state shown in FIG. 3B, the user extracts the packaging structure 1 of one example, and the packaging structures 1 displayed in the adjacent row are extracted together. It is possible to prevent it from being stored.

 [実施の形態3]
 実施の形態3の包装構造体1は、図5に示すように、一方の包装構造体1aのパッケージ5aの背面9aと他方の包装構造体1bのパッケージ5bの正面7bとの間の静摩擦係数が、一方及び他方の包装構造体1a、1bの各第1及び第2の側面11a、11b、13a、13bと、複数の包装構造体を積層状態で収容する収容体である段ボール箱53の、各側面との対向面となる包装構造体側表面55との間の静摩擦係数よりも大きいことが段ボール箱53から包装構造体1a、1bを崩さずにとりやすくする観点から好ましい。
 段ボール箱53の包装構造体側表面55と一方及び他方の包装構造体1a、1bの各第1及び第2の側面11a、11b、13a、13bとの間の静摩擦係数は、0.05以上であることが好ましく、0.10以上であることがより好ましく、また、0.50以下であることが好ましく、0.35以下であることがより好ましく、そして、0.05以上0.50以下であることが好ましく、0.10以上0.35以下であることがより好ましい。
[Embodiment 3]
As shown in FIG. 5, the packaging structure 1 of the third embodiment has a static friction coefficient between the back surface 9a of the package 5a of one packaging structure 1a and the front surface 7b of the package 5b of the other packaging structure 1b. , Each of the first and second side surfaces 11a, 11b, 13a, 13b of one and the other packaging structures 1a and 1b, and the corrugated cardboard box 53 which is an accommodating body for accommodating a plurality of packaging structures in a laminated state. It is preferable that the coefficient of static friction between the packaging structure side surface 55, which is the surface facing the side surface, is larger than the static friction coefficient, from the viewpoint of making it easy to remove the packaging structures 1a and 1b from the corrugated cardboard box 53 without breaking them.
The coefficient of static friction between the packaging structure side surface 55 of the corrugated cardboard box 53 and the first and second side surfaces 11a, 11b, 13a, 13b of one and the other packaging structures 1a and 1b is 0.05 or more. It is preferably 0.10 or more, more preferably 0.50 or less, more preferably 0.35 or less, and 0.05 or more and 0.50 or less. It is preferable, and it is more preferable that it is 0.10 or more and 0.35 or less.

 このような実施の形態3の包装構造体1は、上述した構成を備えるため、平積みされた複数の包装構造体1の陳列状態を崩すことなく、図5に示すような状態に段ボール箱53へ収容することができる。このため、製造ライン中で包装構造体を積み重ねた状態で段ボール箱53へ収容する際に収容しやすい。
 実施の形態3における静摩擦値は、パッケージ5の側面の中央領域をそれぞれ切り出して、第1サンプル47と第2サンプル49として採取し、図4で説明した測定方法により得ることができる。この場合の第1サンプル47と第2サンプル49の切り出し寸法は、前記のサンプルと同一サイズである。また、第1サンプル47は、マット層19のない部位であり、第2サンプル49は、マット層19がある部位である。
Since the packaging structure 1 of the third embodiment has the above-described configuration, the corrugated cardboard box 53 is in a state as shown in FIG. 5 without breaking the display state of the plurality of flatly stacked packaging structures 1. Can be accommodated in. Therefore, it is easy to store the packaging structures in the corrugated cardboard box 53 in a stacked state in the production line.
The static friction value in the third embodiment can be obtained by cutting out the central region of the side surface of the package 5, collecting the first sample 47 and the second sample 49, respectively, and using the measuring method described in FIG. In this case, the cutout dimensions of the first sample 47 and the second sample 49 are the same as those of the above sample. Further, the first sample 47 is a portion without the mat layer 19, and the second sample 49 is a portion with the mat layer 19.

 [実施の形態4]
 実施の形態4の包装構造体1は、図6に示すように、パッケージ5の正面7及び背面9が、第1の側面11から第2の側面13に延びる矩形形状のマット層からなる第1のマット層領域57を複数備え、パッケージ5の第1及び第2の側面11、13が、天面15から底面17に延びる矩形形状のマット層からなる第2のマット層領域59を複数備える。図6では、背面9の第1のマット層領域57と第2の側面13の第2のマット層領域59の記載を省略している。
 実施の形態4の包装構造体1は、下記(式)を満たすことが所望の摩擦係数とし荷崩れを防止する観点から好ましい。
 正面7及び背面9における第1のマット層領域57の横方向平均マット率>第1及び第2の側面11、13における第2のマット層領域59の横方向合計マット率  ・・・(式)
[Embodiment 4]
In the packaging structure 1 of the fourth embodiment, as shown in FIG. 6, the front surface 7 and the back surface 9 of the package 5 are first composed of a rectangular mat layer extending from the first side surface 11 to the second side surface 13. The first and second side surfaces 11 and 13 of the package 5 are provided with a plurality of second mat layer regions 59 made of a rectangular mat layer extending from the top surface 15 to the bottom surface 17. In FIG. 6, the description of the first mat layer region 57 on the back surface 9 and the second mat layer region 59 on the second side surface 13 is omitted.
It is preferable that the packaging structure 1 of the fourth embodiment satisfies the following (formula) from the viewpoint of preventing the load from collapsing with a desired friction coefficient.
Lateral average matting ratio of the first mat layer region 57 on the front surface 7 and the back surface 9> Total lateral matting ratio of the second mat layer region 59 on the first and second side surfaces 11 and 13 ... (Equation)

 実施の形態4の包装構造体1において、正面7及び背面9における第1のマット層領域57の横方向平均マット率、すなわち第1のマット層領域57の横寸法(第1の側面11から第2の側面13までの長さ)は、第1の側面11から第2の側面13までの最短距離を100%としたときに、それぞれのマット層領域の横寸法の平均値が60%以上であることが所望の摩擦係数とし荷崩れを防止する観点から好ましく、80%以上であることがより好ましく、90%以上であることがさらに好ましく、また、100%以下であることが好ましく、そして、60%以上100%以下であることが好ましく、80%以上100%以下であることがより好ましく、90%以上100%以下であることがさらに好ましい。また、第1のマット層領域57の縦寸法(天面15から底面17までの長さ)は、天面15から底面17までの最短距離を100%としたときに、所望の摩擦係数とし荷崩れを防止する観点からそれぞれ5%以上30%以下であり、好ましくは5%以上20%以下、より好ましくは5%以上15%以下である。さらに、複数の第1のマット層領域57の縦寸法の合計は、所望の摩擦係数とし荷崩れを防止する観点から好ましくは10%以上であり、より好ましくは15%以上であり、さらに好ましくは30%以上であり、また、好ましくは80%以下であり、より好ましくは75%以下であり、さらに好ましくは70%以下であり、また、好ましくは10~80%であり、より好ましくは15%以上75%以下、さらに好ましくは30%以上70%以下である。 In the packaging structure 1 of the fourth embodiment, the lateral average mat ratio of the first mat layer region 57 on the front surface 7 and the back surface 9, that is, the lateral dimension of the first mat layer region 57 (first side surface 11 to first). The average value of the horizontal dimensions of each mat layer region is 60% or more, where the shortest distance from the first side surface 11 to the second side surface 13 is 100%. It is preferable to have a desired friction coefficient from the viewpoint of preventing load collapse, more preferably 80% or more, further preferably 90% or more, and preferably 100% or less. It is preferably 60% or more and 100% or less, more preferably 80% or more and 100% or less, and further preferably 90% or more and 100% or less. Further, the vertical dimension (length from the top surface 15 to the bottom surface 17) of the first mat layer region 57 is set as a desired friction coefficient when the shortest distance from the top surface 15 to the bottom surface 17 is 100%. From the viewpoint of preventing collapse, each is 5% or more and 30% or less, preferably 5% or more and 20% or less, and more preferably 5% or more and 15% or less. Further, the total of the vertical dimensions of the plurality of first mat layer regions 57 is preferably 10% or more, more preferably 15% or more, still more preferably 15% or more from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. It is 30% or more, preferably 80% or less, more preferably 75% or less, further preferably 70% or less, and preferably 10 to 80%, more preferably 15%. It is 75% or more, more preferably 30% or more and 70% or less.

 正面7及び背面9における第1マット層領域の数は、所望の摩擦係数とし荷崩れを防止する観点から2個以上であることが好ましく、15個以上であることがより好ましく、また、15個以下であることが好ましく、10個以下であることがより好ましく、そして、2個以上15個以下が好ましく、より好ましくは4個以上10個以下である。
 第2のマット層領域59の縦寸法は、それぞれのマット層領域の縦寸法の平均値が所望の摩擦係数とし荷崩れを防止する観点から60%以上であることが好ましく、80%以上であることがより好ましく、90%以上であることがさらに好ましく、また、100%以下であることが好ましく、そして、60%以上100%以下であることが好ましく、80%以上100%以下であることがより好ましく、90%以上100%以下であることがさらに好ましい。また、第2のマット層領域59の横寸法は、所望の摩擦係数とし荷崩れを防止する観点からそれぞれ5%以上であることが好ましく、また、30%以下であることが好ましく、20%以下であることがより好ましく、15%以下であることがさらに好ましく、そして、5%以上30%以下であることが好ましく、より好ましくは5%以上20%以下、さらに好ましくは5%以上15%以下である。
The number of the first mat layer regions on the front surface 7 and the back surface 9 is preferably 2 or more, more preferably 15 or more, and 15 from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. The number is preferably 10 or less, more preferably 2 or more and 15 or less, and more preferably 4 or more and 10 or less.
The vertical dimension of the second mat layer region 59 is preferably 60% or more, preferably 80% or more, from the viewpoint that the average value of the vertical dimensions of each mat layer region is a desired friction coefficient and prevents load collapse. More preferably, it is more preferably 90% or more, more preferably 100% or less, and preferably 60% or more and 100% or less, and 80% or more and 100% or less. More preferably, it is 90% or more and 100% or less. Further, the lateral dimension of the second mat layer region 59 is preferably 5% or more, preferably 30% or less, and 20% or less, respectively, from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. It is more preferably 15% or less, more preferably 5% or more and 30% or less, more preferably 5% or more and 20% or less, still more preferably 5% or more and 15% or less. Is.

 さらに、第1及び第2の側面11、13における第2のマット層領域59の横方向合計マット率、すなわち複数の第2のマット層領域59の横寸法の合計は、第1のマット層領域の横寸法の、第1の側面11から第2の側面13までの最短距離に対する比率の平均値よりも小さいことを前提として、所望の摩擦係数とし荷崩れを防止する観点から10%以上であることが好ましく、15%以上であることがより好ましく、30%以上であることがさらに好ましく、また、80%以下であることが好ましく、75%以下であることがより好ましく、70%以下であることがさらに好ましく、10~80%であることが好ましく、より好ましくは15%以上75%以下、さらに好ましくは30%以上70%以下である。
 天面15及び底面17における第2マット層領域の数は、所望の摩擦係数とし荷崩れを防止する観点から3個以上であることが好ましく、15個以上であることがより好ましく、また、15個以下であることが好ましく、10個以下であることがより好ましく、そして、2個以上15個以下であることが好ましく、より好ましくは3個以上10個以下である。
Further, the total lateral mating ratio of the second mat layer regions 59 on the first and second side surfaces 11 and 13, that is, the total lateral dimensions of the plurality of second mat layer regions 59 is the first mat layer region. It is 10% or more from the viewpoint of preventing the load from collapsing with a desired friction coefficient on the assumption that the lateral dimension of the above is smaller than the average value of the ratio of the ratio to the shortest distance from the first side surface 11 to the second side surface 13. It is preferably 15% or more, more preferably 30% or more, further preferably 80% or less, more preferably 75% or less, and more preferably 70% or less. It is more preferably 10 to 80%, more preferably 15% or more and 75% or less, still more preferably 30% or more and 70% or less.
The number of the second mat layer regions on the top surface 15 and the bottom surface 17 is preferably 3 or more, more preferably 15 or more, and 15 or more, from the viewpoint of obtaining a desired friction coefficient and preventing load collapse. The number is preferably less than, more preferably 10 or less, preferably 2 or more and 15 or less, and more preferably 3 or more and 10 or less.

 このような実施の形態4の包装構造体1は、上述した構成を備えるため、複数の包装構造体1を隣り合わせて配置した場合、一方のパッケージの正面と他方のパッケージの背面とのパッケージの底面から天面に向かう方向の摩擦が、一方のパッケージの側面と他方のパッケージの側面との上記方向の摩擦よりも大きくなるため、平積みされた複数の包装構造体1の陳列状態をくずすことなく、図5に示すような状態に段ボール箱53へ収容することができる。 Since the packaging structure 1 of the fourth embodiment has the above-described configuration, when a plurality of packaging structures 1 are arranged side by side, the bottom surface of the package is the front surface of one package and the back surface of the other package. Since the friction in the direction from the top surface to the top surface is larger than the friction in the above direction between the side surface of one package and the side surface of the other package, the display state of the plurality of flatly stacked packaging structures 1 is not destroyed. , Can be housed in the cardboard box 53 in the state shown in FIG.

 本発明の包装構造体において、パッケージ内部のパック圧は、荷崩れを防止する観点及び包装構造体の取りやすさの観点から、1.2kPa以上であることが好ましく、1.5kPa以上であることがより好ましく、2.5kPa以下であることが好ましく、2.2kPa以下であることがより好ましく、また好ましくは1.2kPa以上2.5kPa以下であり、より好ましくは1.5kPa以上2.2kPa以下である。
 パッケージ内部のパック圧は、おむつの厚みに対する圧縮特性を測定し、パッケージ内のおむつ厚みに相当する荷重に換算することで求めた。具体的には、オートグラフ(株式会社島津製作所、型番AG-X)を用い、おむつ5枚を重ねた状態で、50kgfの荷重がかかるまで圧縮し、パッケージ内のおむつ厚み5枚分の厚みと同じ厚みとなった時点の圧縮力(荷重)を、パック圧とした。なお、測定にはパッケージから出し10時間以上放置後のおむつを用いる。パッケージ内のおむつ厚みは、パッケージ寸法と入り枚数からパッケージ内のおむつの厚みを算出した。
In the packaging structure of the present invention, the pack pressure inside the package is preferably 1.2 kPa or more, preferably 1.5 kPa or more, from the viewpoint of preventing the load from collapsing and the ease of taking the package structure. Is more preferably 2.5 kPa or less, more preferably 2.2 kPa or less, and more preferably 1.2 kPa or more and 2.5 kPa or less, and more preferably 1.5 kPa or more and 2.2 kPa or less. Is.
The pack pressure inside the package was determined by measuring the compression characteristics with respect to the thickness of the diaper and converting it into a load corresponding to the thickness of the diaper inside the package. Specifically, using an autograph (Shimadzu Corporation, model number AG-X), five diapers are stacked and compressed until a load of 50 kgf is applied to obtain the thickness of five diapers in the package. The compressive force (load) at the time when the thickness became the same was defined as the pack pressure. For the measurement, use a diaper that has been taken out of the package and left for 10 hours or more. For the diaper thickness in the package, the thickness of the diaper in the package was calculated from the package size and the number of sheets.

 上述した実施の形態は、マット層を有するものであったが、マット層でない構成で、上述した各静摩擦係数の条件を満たすようにすることもできる。 Although the above-described embodiment has a mat layer, it is also possible to satisfy the conditions of each of the above-mentioned static friction coefficients with a configuration that is not a mat layer.

 上述した本発明の実施形態に関し、更に以下の吸収性物品を開示する。
 <1>
 吸収性物品をパッケージに収容して成る吸収性物品の包装構造体であって、前記パッケージは、正面と、前記正面に対向する背面と、第1の側面と、前記第1の側面に対向する第2の側面と、天面と、前記天面に対向する底面とからなる六面体であり、一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、0.25以上、好ましくは0.25以上0.50以下、より好ましくは0.30以上0.40以下である、包装構造体。
The following absorbent articles are further disclosed with respect to the above-described embodiment of the present invention.
<1>
A packaging structure for an absorbent article in which the absorbent article is housed in a package, wherein the package faces the front surface, the back surface facing the front surface, the first side surface, and the first side surface. It is a hexahedron consisting of a second side surface, a top surface, and a bottom surface facing the top surface, and the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is , 0.25 or more, preferably 0.25 or more and 0.50 or less, more preferably 0.30 or more and 0.40 or less.

 <2>
 一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、一方の包装構造体のパッケージの第1の側面と他方の包装構造体のパッケージの第2の側面との間の静摩擦係数よりも0.05以上大きく、好ましくは0.05以上0.50以下であり、好ましくは0.10以上0.30以下である前記<1>に記載の包装構造体。
 <3>
 一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、一方及び他方の包装構造体の各第1及び第2の側面と前記包装構造体を積層状態で収容する収容体の前記各第1及び第2の側面と向かい合う包装構造体側表面との間の静摩擦係数よりも小さい前記<1>又は<2>に記載の包装構造体。
 <4>
 前記収容体の包装構造体側表面と一方及び他方の包装構造体の各第1及び第2の側面との間の静摩擦係数は、0.05以上大きく、好ましくは0.05以上0.50以下、より好ましくは0.10以上0.35以下である前記<1>~<3>のいずれか1つに記載の包装構造体。
 <5>
 前記パッケージの各面は、最外層に凹凸を有するマット層をそれぞれ備える前記<1>~<4>のいずれか1つに記載の包装構造体。
<2>
The coefficient of static friction between the back of the package of one packaging structure and the front of the package of the other packaging structure is the first side of the package of one packaging structure and the second of the packaging of the other packaging structure. The packaging structure according to <1>, which is 0.05 or more larger than the static friction coefficient with the side surface, preferably 0.05 or more and 0.50 or less, and preferably 0.10 or more and 0.30 or less. body.
<3>
The static friction coefficient between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is such that the first and second side surfaces of the one and the other packaging structure are laminated with the packaging structure. The packaging structure according to <1> or <2>, which is smaller than the static friction coefficient between the first and second side surfaces of the housing to be housed in the state and the surface facing the packaging structure side.
<4>
The coefficient of static friction between the packaging structure side surface of the housing and the first and second side surfaces of one and the other packaging structure is as large as 0.05 or more, preferably 0.05 or more and 0.50 or less. The packaging structure according to any one of <1> to <3>, which is more preferably 0.10 or more and 0.35 or less.
<5>
The packaging structure according to any one of <1> to <4>, wherein each surface of the package includes a mat layer having irregularities on the outermost layer.

 <6>
 前記第1及び第2の側面のマット層の印刷線数は、前記正面及び背面のマット層の印刷線数の40%~90%、好ましくは50~80%、より好ましくは60~80%である前記<5>に記載の包装構造体。
 <7>
 前記パッケージの各面は、内側となる面から外側となる面に向かって、フィルム基材層、インク層、及びマット層の順で積層されている、前記<1>~<6>のいずれか1つに記載の包装構造体。
 <8>
 前記フィルム基材の材料は、ポリエチレン、ポリアミド、ポリエステル、ポリブチレンテレフタレート、ポリエチレンテレフタレートから選択される1又は2以上である、前記<7>に記載の包装構造体。
 <9>
 前記インク層の材料は、カーボンブラック、ジアミン、ポリオール、硬化剤及び有機溶媒を含有する、前記<7>又は<8>に記載の包装構造体。
 <10>
 前記マット層は、シリカ、アルミナ、酸化カルシウム、炭酸カルシウム、硫酸カルシウム、ケイ酸カルシウム、カーボンブラックから選択されるマット剤を分散させたアクリル系樹脂、エポキシ系樹脂、ウレタン系樹脂、ポリオレフィン系樹脂、フッ素系樹脂、フェノキシ系樹脂、シリコーン系樹脂から選択される樹脂層から形成される、前記<7>~<9>いずれか1つに記載の包装構造体。
<6>
The number of printed lines of the first and second side surface mat layers is 40% to 90%, preferably 50 to 80%, and more preferably 60 to 80% of the number of printed lines of the front and back mat layers. The packaging structure according to <5> above.
<7>
Any of the above <1> to <6>, each surface of the package is laminated in the order of a film base material layer, an ink layer, and a matte layer from an inner surface to an outer surface. The packaging structure according to one.
<8>
The packaging structure according to <7>, wherein the material of the film base material is one or more selected from polyethylene, polyamide, polyester, polybutylene terephthalate, and polyethylene terephthalate.
<9>
The packaging structure according to <7> or <8>, wherein the material of the ink layer contains carbon black, a diamine, a polyol, a curing agent, and an organic solvent.
<10>
The mat layer is an acrylic resin, an epoxy resin, a urethane resin, a polyolefin resin, in which a matting agent selected from silica, alumina, calcium oxide, calcium carbonate, calcium sulfate, calcium silicate, and carbon black is dispersed. The packaging structure according to any one of <7> to <9>, which is formed from a resin layer selected from a fluororesin, a phenoxy resin, and a silicone resin.

 <11>
 前記パッケージの正面及び背面は、第1の側面から第2の側面に向かって延びるマット層からなる第1のマット層領域を複数備え、前記パッケージの第1及び第2の側面は、前記天面から前記底面に向かって延びるマット層からなる第2のマット層領域を複数備える前記<6>に記載の包装構造体。
 <12>
 前記正面及び前記背面における前記第1マット層領域の数は、2個以上15個以下であり、好ましくは4個以上10個以下である前記<11>に記載の包装構造体。
 <13>
 前記天面及び前記底面における前記第2マット層領域の数は、2個以上15個以下であり、好ましくは3個以上10個以下である前記<11>又は<12>に記載の包装構造体。
 <14>
 前記パッケージの内部のパック圧は、1.2kPa以上であることが好ましく、1.5kPa以上であることがより好ましく、2.5kPa以下であることが好ましく、2.2kPa以下であることがより好ましく、また好ましくは1.2kPa以上2.5kPa以下であり、より好ましくは1.5kPa以上2.2kPa以下である、前記<1>~<13>いずれか1つに記載の包装構造体。
<11>
The front and back surfaces of the package include a plurality of first mat layer regions consisting of mat layers extending from the first side surface toward the second side surface, and the first and second side surfaces of the package are the top surface. The packaging structure according to <6>, further comprising a plurality of second mat layer regions composed of a mat layer extending from the bottom toward the bottom surface.
<12>
The packaging structure according to <11>, wherein the number of the first mat layer regions on the front surface and the back surface is 2 or more and 15 or less, preferably 4 or more and 10 or less.
<13>
The packaging structure according to <11> or <12>, wherein the number of the second mat layer regions on the top surface and the bottom surface is 2 or more and 15 or less, preferably 3 or more and 10 or less. ..
<14>
The pack pressure inside the package is preferably 1.2 kPa or more, more preferably 1.5 kPa or more, preferably 2.5 kPa or less, and more preferably 2.2 kPa or less. The packaging structure according to any one of <1> to <13>, preferably 1.2 kPa or more and 2.5 kPa or less, and more preferably 1.5 kPa or more and 2.2 kPa or less.

 本発明の効果を確認するために、実施例1~3及び比較例1~2の包装構造体を製造し、比較実験を行った。
 実施例1
 六面体の包装構造体のフィルム基材層として用いられるポリエチレン製フィルムと、シリカ(マット剤)と、樹脂層31として用いられる樹脂層材料のいずれかと、複数の吸収性物品(おむつ)とを準備した。次に、フィルム基材層(ポリエチレン製フィルム)の各面に、マット剤と樹脂層材料を用いて同じ印刷線数(400線)のマット層を形成した。続いて、ポリエチレン製フィルムにマット層を形成して袋形状(収納可能な形状)としたパッケージを構成し、このパッケージに、複数の吸収性物品を収容して実施例1の包装構造体を4つ製造した。
In order to confirm the effect of the present invention, the packaging structures of Examples 1 to 3 and Comparative Examples 1 and 2 were manufactured and comparative experiments were conducted.
Example 1
A polyethylene film used as a film base layer for a hexahedral packaging structure, silica (matting agent), one of the resin layer materials used as the resin layer 31, and a plurality of absorbent articles (diapers) were prepared. .. Next, a mat layer having the same number of printed lines (400 lines) was formed on each surface of the film base material layer (polyethylene film) by using a matting agent and a resin layer material. Subsequently, a mat layer is formed on a polyethylene film to form a bag-shaped (storable shape) package, and a plurality of absorbent articles are housed in this package to form the packaging structure of Example 1. Manufactured.

 実施例2
 実施例1と同じ材料を準備した。次に、六面体のポリエチレン製フィルムの正面、背面、天面、底面にマット剤と樹脂層材料を用いて同じ印刷線数(400線)のマット層を形成し、ポリエチレン製フィルムの第1及び第2の側面に上記4面の約63%の印刷線数(250線)のマット層を形成してパッケージを構成した。そして、複数の吸収性物品をパッケージ内に収容して実施例2の包装構造体を4つ製造した。
Example 2
The same materials as in Example 1 were prepared. Next, a matte layer having the same number of printing lines (400 lines) is formed on the front surface, back surface, top surface, and bottom surface of the hexahedral polyethylene film using a matting agent and a resin layer material, and the first and first polyethylene films are formed. A matte layer having about 63% of the printing lines (250 lines) of the above four sides was formed on the side surface of No. 2 to form a package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 2.

 実施例3
 実施例1と同じ材料を準備した。次に、六面体のポリエチレン製フィルムの正面及び背面に、図6に示すような、複数の第1のマット層領域57を形成し、ポリエチレン製フィルムの第1及び第2の側面に、複数の第2のマット層領域59を形成してパッケージを構成した。そして、複数の吸収性物品をパッケージ内に収容して実施例3の包装構造体を4つ製造した。ここで、第1のマット層領域57の各横寸法は、第1の側面から第2の側面までの最短距離を100%としたときに100%であり、複数の第1のマット層領域57の縦寸法の合計は、天面から底面までの最短距離を100%としたときに60%であった。また、第2のマット層領域59の各縦寸法は、天面から底面までの最短距離を100%としたときに100%であり、複数の第2のマット層領域の横寸法の合計は、第1の側面から第2の側面までの最短距離を100%としたときに50%であった。
Example 3
The same materials as in Example 1 were prepared. Next, a plurality of first mat layer regions 57 as shown in FIG. 6 are formed on the front surface and the back surface of the hexahedral polyethylene film, and a plurality of first mat layer regions 57 are formed on the first and second side surfaces of the polyethylene film. The mat layer region 59 of 2 was formed to form a package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 3. Here, each lateral dimension of the first mat layer region 57 is 100% when the shortest distance from the first side surface to the second side surface is 100%, and the plurality of first mat layer regions 57 The total vertical dimension of the above was 60% when the shortest distance from the top surface to the bottom surface was 100%. Further, each vertical dimension of the second mat layer region 59 is 100% when the shortest distance from the top surface to the bottom surface is 100%, and the total of the horizontal dimensions of the plurality of second mat layer regions is It was 50% when the shortest distance from the first side surface to the second side surface was 100%.

 実施例4
 実施例1と同じ材料を準備した。そして実施例3よりも複数の第1のマット層領域57と複数の第2のマット層領域59のマット濃度を高くしたパッケージを構成した。そして、複数の吸収性物品をパッケージ内に収容して実施例4の包装構造体を4つ製造した。
 マット濃度は、脂層中のマット剤含有量を実施例3よりも高くした。
Example 4
The same materials as in Example 1 were prepared. Then, a package having a higher mat density in the plurality of first mat layer regions 57 and the plurality of second mat layer regions 59 than in Example 3 was constructed. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 4.
Mat concentration was higher than that of Example 3 a matting agent content Tree fat layer.

 実施例5
 実施例1と同じ材料を準備した。そして実施例3のようにポリエチレン製フィルムの正面及び背面に複数の第1のマット層領域57を形成するとともに、第1及び第2の側面は非マットとしたパッケージを構成した。そして、複数の吸収性物品をパッケージ内に収容して実施例5の包装構造体を4つ製造した。
 実施例1~5の包装構造体におけるパッケージ内部のパック圧は1.8kPaであった。
Example 5
The same materials as in Example 1 were prepared. Then, as in Example 3, a plurality of first mat layer regions 57 are formed on the front surface and the back surface of the polyethylene film, and the first and second side surfaces form a non-matte package. Then, a plurality of absorbent articles were housed in the package to produce four packaging structures of Example 5.
The pack pressure inside the package in the packaging structures of Examples 1 to 5 was 1.8 kPa.

 比較例1
 ポリエチレン製フィルムを用いた六面体のフィルム基材層と複数の吸収性物品(おむつ)とを準備した。このフィルム基材層にはマット層を形成せずにパッケージを構成した。次に、複数の吸収性物品をこのパッケージ内に収容して比較例1の包装構造体を4つ製造した。
Comparative Example 1
A hexahedral film substrate layer using a polyethylene film and a plurality of absorbent articles (diapers) were prepared. A package was constructed without forming a mat layer on this film base material layer. Next, a plurality of absorbent articles were housed in this package to produce four packaging structures of Comparative Example 1.

 比較例2
 実施例1と同じ材料を準備した。
 次に、実施例3のポリエチレン製フィルムを用いた六面体のフィルム基材層の正面及び背面に、第2のマット層領域59を形成し、六面体のフィルム基材層の第1及び第2の側面に、複数の第1のマット層領域57を形成してパッケージを構成した。続いて、複数の吸収性物品をパッケージ内に収容して比較例2の包装構造体を4つ製造した。ここで、第2のマット層領域の各縦寸法は、天面から底面までの最短距離を100%としたときに100%であり、複数の第2のマット層領域の横寸法の合計は、第1の側面から第2の側面までの最短距離を100%としたときに50%であった。また、第1のマット層領域の各横寸法は、第1の側面から第2の側面までの最短距離を100%としたときに100%であり、複数の第1のマット層領域の縦寸法の合計は、天面から底面までの最短距離を100%としたときに60%であった。
Comparative Example 2
The same materials as in Example 1 were prepared.
Next, a second mat layer region 59 is formed on the front surface and the back surface of the hexahedral film base material layer using the polyethylene film of Example 3, and the first and second side surfaces of the hexahedral film base material layer are formed. A plurality of first mat layer regions 57 were formed to form a package. Subsequently, a plurality of absorbent articles were housed in the package to produce four packaging structures of Comparative Example 2. Here, each vertical dimension of the second mat layer region is 100% when the shortest distance from the top surface to the bottom surface is 100%, and the total of the horizontal dimensions of the plurality of second mat layer regions is It was 50% when the shortest distance from the first side surface to the second side surface was 100%. Further, each horizontal dimension of the first mat layer region is 100% when the shortest distance from the first side surface to the second side surface is 100%, and the vertical dimension of the plurality of first mat layer regions. The total was 60% when the shortest distance from the top surface to the bottom surface was 100%.

 評価1(包装構造体の崩れ難さ評価)
 図7の(A)及び(B)に示すように、試験者の腰部程度の高さの机(図示せず)の上に、実施例1~5及び比較例1、2の包装構造体をそれぞれ平積みに4個積み重ね、一番下の包装構造体の両側面に手を添え、外力を加えて5秒以内に50cmの距離を移動させる評価試験を行った。評価試験は、同一の試験者が5回繰り返し行い、4段階スコアの平均値を算出した。4段階スコアとは移動前後の包装構造体1の整列性を下記の基準で判断したものである。例えば、1<2<3<4のように、1は上側に積んだ包装構造体が崩れ落ち、2は上側に積んだ包装構造体が大きくずれ、3は上側に積んだ包装構造体がややずれ、4は上側に積んだ包装構造体の整列状態が保たれた。ここで、4個積み重ねた包装構造体1のサイズは50cm×38cm×35.5cm(図7の(A)のH×L×T)であった。
Evaluation 1 (Evaluation of the difficulty of collapsing the packaging structure)
As shown in FIGS. 7A and 7B, the packaging structures of Examples 1 to 5 and Comparative Examples 1 and 2 are placed on a desk (not shown) at a height of about the waist of the tester. An evaluation test was conducted in which four pieces were stacked in a flat stack, and hands were placed on both sides of the bottom packaging structure, and an external force was applied to move a distance of 50 cm within 5 seconds. The evaluation test was repeated 5 times by the same tester, and the average value of the 4-step score was calculated. The 4-step score is a judgment of the alignment of the packaging structure 1 before and after the movement based on the following criteria. For example, like 1 <2 <3 <4, 1 means that the packaging structure stacked on the upper side collapses, 2 means that the packaging structure stacked on the upper side is greatly displaced, and 3 means that the packaging structure stacked on the upper side is slightly displaced. In No. 4, the aligned state of the packaging structure stacked on the upper side was maintained. Here, the size of the packaging structure 1 in which four were stacked was 50 cm × 38 cm × 35.5 cm (H × L × T in FIG. 7 (A)).

 評価2(段ボール箱への入れ易さ評価)
 図8の(A)に示すように、段ボール箱53の1辺のフタの上に、包装構造体1を平積みに4個重ね、一番下の包装構造体1の手前側の面(天面15)に片手を添えて、3秒以内に段ボール箱53の底面53aまで包装構造体1を押し込む(図8の(B))評価試験を行った。評価試験は、同一の試験者が5回繰り返し行い、4段階スコアの平均値を算出した。4段階スコアとはその際の包装構造体1の整列状態を下記の基準で判断した。例えば、1<2<3<4のように、1は、上側に積んだ包装構造体が崩れ落ち、2は、上側に積んだ包装構造体が大きくずれ、3は、上側に積んだ包装構造体がややずれ、4は、上側に積んだ包装構造体の整列状態が保たれた。なお、段ボール箱の内寸法は、51cm×39cm×36cm(図8の(A)のH×L×T)であった。
Evaluation 2 (Easy to put in cardboard box)
As shown in FIG. 8A, four packaging structures 1 are stacked flat on the lid on one side of the cardboard box 53, and the front surface (top) of the bottom packaging structure 1 is stacked. An evaluation test was conducted in which the packaging structure 1 was pushed into the bottom surface 53a of the cardboard box 53 within 3 seconds with one hand attached to the surface 15) ((B) in FIG. 8). The evaluation test was repeated 5 times by the same tester, and the average value of the 4-step score was calculated. With the 4-step score, the alignment state of the packaging structure 1 at that time was judged according to the following criteria. For example, like 1 <2 <3 <4, 1 means that the packaging structure stacked on the upper side collapses, 2 means that the packaging structure stacked on the upper side greatly shifts, and 3 means the packaging structure stacked on the upper side. In No. 4, the packaging structure stacked on the upper side was kept aligned. The internal dimensions of the cardboard box were 51 cm × 39 cm × 36 cm (H × L × T in FIG. 8 (A)).

 評価1及び2の結果を、実施例1~5及び比較例1~2の包装構造体のパッケージの静摩擦係数の測定結果とともに下記表1に示す。なお、下記表1において、Aは、一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数、Bは、一方の包装構造体のパッケージの第1の側面と他方の包装構造体のパッケージの第2の側面との間の静摩擦係数、Cは、段ボール箱の包装構造体側表面と包装構造体の正面及び背面との間の静摩擦係数、Dは、段ボール箱の包装構造体側表面と包装構造体の側面との間の静摩擦係数を示す。表1において静摩擦係数A、Bは、一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面のものを示し、静摩擦係数C、Dは、一方の包装構造体のパッケージの側面と他方の包装構造体のパッケージの側面のものを示す。 The results of evaluations 1 and 2 are shown in Table 1 below together with the measurement results of the static friction coefficient of the packages of the packaging structures of Examples 1 to 5 and Comparative Examples 1 and 2. In Table 1 below, A is the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure, and B is the first package of one packaging structure. The static friction coefficient between the side surface and the second side surface of the package of the other packaging structure, C is the static friction coefficient between the packaging structure side surface of the cardboard box and the front and back surfaces of the packaging structure, and D is the corrugated cardboard. The static friction coefficient between the packaging structure side surface of the box and the side surface of the packaging structure is shown. In Table 1, the static friction coefficients A and B indicate the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure, and the static friction coefficients C and D are the side surfaces of the package of one packaging structure. And the one on the side of the package of the other packaging structure.

Figure JPOXMLDOC01-appb-T000001
 
Figure JPOXMLDOC01-appb-T000001
 

 表1に示すように、実施例1~5の包装構造体と比較例1、2の包装構造体とを比較すると、実施例1~5の包装構造体はそれぞれ、一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数が、0.25以上であるため、図3の(B)に示すような平積みした陳列状態から実施の形態1の包装構造体1を最上位のもの又は最下位のものから順次手前に引いて取り出す際に包装構造体1が荷崩れし難いことが、評価1の結果から確認された。 As shown in Table 1, when the packaging structures of Examples 1 to 5 and the packaging structures of Comparative Examples 1 and 2 are compared, the packaging structures of Examples 1 to 5 are each a package of one packaging structure. Since the static friction coefficient between the back surface of the package and the front surface of the package of the other packaging structure is 0.25 or more, the packaging of the first embodiment is carried out from the flatly stacked display state as shown in FIG. 3 (B). From the results of evaluation 1, it was confirmed that the packaging structure 1 is unlikely to collapse when the structure 1 is pulled out in order from the highest or lowest structure.

 また、実施例1の包装構造体と実施例2の包装構造体とを比較すると、実施例2の包装構造体は、一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数が、一方の包装構造体のパッケージの第1の側面と他方の包装構造体のパッケージの第2の側面との間の静摩擦係数よりも0.05以上大きいため、平積みされた複数の包装構造体1の陳列状態をくずすことなく、図5に示すような状態に段ボール箱53へ収容できることが、評価2の結果から確認された。 Further, comparing the packaging structure of Example 1 with the packaging structure of Example 2, the packaging structure of Example 2 is the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure. Since the static friction coefficient between the two is greater than the static friction coefficient between the first side surface of the package of one packaging structure and the second side surface of the package of the other packaging structure by 0.05 or more, the stacking is flat. From the results of Evaluation 2, it was confirmed that the plurality of packaging structures 1 can be housed in the corrugated cardboard box 53 in the state shown in FIG. 5 without destroying the display state.

 さらに、実施例3の包装構造体と比較例2の包装構造体とを比較すると、実施例3の包装構造体は、パッケージの正面及び背面が、第1の側面から第2の側面に延びる矩形形状のマット層からなる第1のマット層領域57を複数備え、パッケージの第1及び第2の側面が、天面から底面に延びる矩形形状のマット層からなる第2のマット層領域59を複数備えるため、平積みされた複数の包装構造体1の陳列状態を崩すことなく、図5に示すような状態に段ボール箱53へ収容できることが、評価2の結果から確認された。
 実施例3の包装構造体と実施例4の包装構造体とを比較すると、実施例4の方が第1のマット層領域57及び第2のマット層領域59の静摩擦値が実施例3よりも大きいため、評価1の結果が確認された。
 実施例4の包装構造体と実施例5の包装構造体とを比較すると、実施例5においては、各側面の静摩擦値が実施例4よりも低いため、評価1の結果が確認された。
Further, comparing the packaging structure of Example 3 with the packaging structure of Comparative Example 2, the packaging structure of Example 3 has a rectangular shape in which the front surface and the back surface of the package extend from the first side surface to the second side surface. A plurality of first mat layer regions 57 composed of a mat layer having a shape are provided, and a plurality of second mat layer regions 59 composed of a rectangular mat layer extending from a top surface to a bottom surface are provided on the first and second side surfaces of the package. From the results of Evaluation 2, it was confirmed that the plurality of flatly stacked packaging structures 1 can be housed in the corrugated cardboard box 53 in the state shown in FIG. 5 without breaking the display state.
Comparing the packaging structure of Example 3 and the packaging structure of Example 4, the static friction values of the first mat layer region 57 and the second mat layer region 59 of Example 4 are higher than those of Example 3. Since it is large, the result of evaluation 1 was confirmed.
Comparing the packaging structure of Example 4 with the packaging structure of Example 5, the result of Evaluation 1 was confirmed in Example 5 because the static friction value of each side surface was lower than that of Example 4.

 本発明の吸収性物品の包装構造体は、積み重ねた状態において荷崩れし難い。 The packaging structure of the absorbent article of the present invention does not easily collapse in a stacked state.

Claims (6)

 吸収性物品をパッケージに収容して成る吸収性物品の包装構造体であって、
 前記パッケージは、正面と、前記正面に対向する背面と、第1の側面と、前記第1の側面に対向する第2の側面と、天面と、前記天面に対向する底面とからなる六面体であり、
 一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、0.25以上である包装構造体。
A packaging structure for absorbent articles, which is formed by containing the absorbent articles in a package.
The package is a hexahedron composed of a front surface, a back surface facing the front surface, a first side surface, a second side surface facing the first side surface, a top surface, and a bottom surface facing the top surface. And
A packaging structure in which the coefficient of static friction between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is 0.25 or more.
 一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、一方の包装構造体のパッケージの第1の側面と他方の包装構造体のパッケージの第2の側面との間の静摩擦係数よりも大きい請求項1に記載の包装構造体。 The coefficient of static friction between the back of the package of one packaging structure and the front of the package of the other packaging structure is the first side of the package of one packaging structure and the second of the packaging of the other packaging structure. The packaging structure according to claim 1, which is larger than the coefficient of static friction with the side surface of the package.  一方の包装構造体のパッケージの背面と他方の包装構造体のパッケージの正面との間の静摩擦係数は、一方及び他方の包装構造体の各第1及び第2の側面と前記包装構造体を積層状態で収容する収容体の前記各第1及び第2の側面と向かい合う包装構造体側表面との間の静摩擦係数よりも小さい請求項1又は2に記載の包装構造体。 The static friction coefficient between the back surface of the package of one packaging structure and the front surface of the package of the other packaging structure is such that the first and second side surfaces of the one and the other packaging structure are laminated with the packaging structure. The packaging structure according to claim 1 or 2, which is smaller than the static friction coefficient between the first and second side surfaces of the housing to be housed in the state and the surface facing the packaging structure side.  前記パッケージの各面は、最外層に凹凸を有するマット層をそれぞれ備える請求項1~3のいずれか1項に記載の包装構造体。 The packaging structure according to any one of claims 1 to 3, wherein each surface of the package includes a mat layer having irregularities on the outermost layer.  前記パッケージの正面及び背面は、第1の側面から第2の側面に向かって延びるマット層からなる第1のマット層領域を複数備え、
 前記パッケージの第1及び第2の側面は、前記天面から前記底面に向かって延びるマット層からなる第2のマット層領域を複数備え、かつ
 下記(式)を満たす請求項4に記載の包装構造体。
 正面及び背面における第1のマット層領域の横方向平均マット率>第1及び第2の側面における第2のマット層領域の横方向合計マット率  ・・・(式)
The front and back surfaces of the package include a plurality of first mat layer regions consisting of mat layers extending from the first side surface to the second side surface.
The packaging according to claim 4, wherein the first and second side surfaces of the package include a plurality of second mat layer regions composed of a mat layer extending from the top surface toward the bottom surface, and satisfy the following (formula). Structure.
Lateral average matte ratio of the first matte layer area on the front and back> Total lateral matte ratio of the second matte layer area on the first and second side surfaces ... (Equation)
 前記パッケージの内部のパック圧が、1.2kPa以上2.5kPa以下である、請求項1~5のいずれか1項に記載の包装構造体。 The packaging structure according to any one of claims 1 to 5, wherein the packing pressure inside the package is 1.2 kPa or more and 2.5 kPa or less.
PCT/JP2020/021489 2019-05-31 2020-05-29 Packaging structure for absorbent article Ceased WO2020241890A1 (en)

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