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WO2017098613A1 - Procédé de production de produits emballés reliés - Google Patents

Procédé de production de produits emballés reliés Download PDF

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Publication number
WO2017098613A1
WO2017098613A1 PCT/JP2015/084568 JP2015084568W WO2017098613A1 WO 2017098613 A1 WO2017098613 A1 WO 2017098613A1 JP 2015084568 W JP2015084568 W JP 2015084568W WO 2017098613 A1 WO2017098613 A1 WO 2017098613A1
Authority
WO
WIPO (PCT)
Prior art keywords
continuous sheet
absorbent article
air vent
cylindrical continuous
vent hole
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/JP2015/084568
Other languages
English (en)
Japanese (ja)
Inventor
辰男 高橋
誠司 村上
裕志 西野
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.)
Unicharm Corp
Original Assignee
Unicharm 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 Unicharm Corp filed Critical Unicharm Corp
Priority to JP2016521803A priority Critical patent/JP6022122B1/ja
Priority to PCT/JP2015/084568 priority patent/WO2017098613A1/fr
Publication of WO2017098613A1 publication Critical patent/WO2017098613A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies

Definitions

  • the present invention relates to a method for manufacturing a linked packaged product.
  • a linked package product is known in which a plurality of packaged articles each having an absorbent article packaged are connected in one direction.
  • the linked packaged product is displayed at, for example, a store, and a desired number of packages are purchased from the linked packaged product and sold to the purchaser.
  • Such a linked packaged product includes, for example, a step of sequentially supplying a plurality of absorbent articles onto a continuous sheet conveyed in the conveying direction, and a cylinder in which the continuous sheet is formed into a cylindrical shape and a plurality of absorbent articles are included.
  • a step of sequentially supplying a plurality of absorbent articles onto a continuous sheet conveyed in the conveying direction and a cylinder in which the continuous sheet is formed into a cylindrical shape and a plurality of absorbent articles are included.
  • the step of joining the absorbent articles adjacent to each other in the cylindrical continuous sheet in the transverse direction and the step of cutting the center of the joint portion.
  • transverse transverse joining portions are formed before and after the absorbent article in the cylindrical continuous sheet to form individual packages.
  • the volume is reduced at the place where the lateral joint portion is formed. That is, when a packaged product is formed, excess air that cannot be stored in the packaging bag is generated.
  • the excess air can be discharged to some extent from the gap between the continuous sheets.
  • excess air may not be sufficiently discharged, and excess air remaining in the packaging bag may cause the packaging bag to swell too much or its internal pressure may become too high. There is. In this case, for example, problems such as incomplete joining of the lateral joint portion or tearing of the lateral joint portion once formed occur.
  • the packaging bag swells too much, excess space is generated around the absorbent article, making it easier for the absorbent article to move back and forth and left and right within the cylindrical continuous sheet, and even in the manufactured linked packaging product.
  • the article becomes easy to move in the packaging bag.
  • a packaging box such as a cardboard box
  • the absorbent article is greatly displaced in the packaging bag, and it is difficult to arrange the packaged product in the packaging box. Therefore, when the packaging box is shaken during transportation, the arrangement of the packaged product is easily disturbed in the packaging box, so that a part of the packaged product is deformed or crushed and the absorbent body of the absorbent article becomes Deformation may occur, such as a decrease in absorption capacity.
  • Patent Documents 1 to 4 disclose techniques of packaging and manufacturing methods for packaging bodies.
  • the inventors of the present invention should form a laterally joined portion of a cylindrical continuous sheet as a method of properly discharging excess air when forming a laterally joined portion (end seal). A method of providing an air hole for exhausting air in the vicinity of the location was considered.
  • Patent Documents 1 and 2 there is a technology in which a packaging body in which a perforation is formed in the vicinity of the end seal is placed in a vacuum apparatus, and the packaging body is vacuum-treated by removing air from the perforation by vacuum exhaust. It is disclosed.
  • the perforations formed in the package are for extracting air from the package when performing vacuum processing, and the purpose and timing of extracting the air are the same as those of the present invention. Is totally different.
  • the point seal is formed before the end seal and the perforation are formed, the volume of the cylindrical continuous sheet is reduced at the place where the point seal is formed, and excess air is generated, resulting in a packaging body. May swell excessively, resulting in problems such as incomplete point seals.
  • Patent Document 3 when forming an end seal at two locations on a cylindrical film to form a package, the interior is intermittent in the transverse direction so that air can easily escape, that is, skipping.
  • a technique is disclosed in which an end seal is provided and both ends are folded while the air is removed.
  • the technique of the above-mentioned Patent Document 3 is greatly different from the present invention in the structure of the target packaging body such that there are many end seal gaps, and both ends are folded while removing air.
  • Patent Document 4 discloses a package body composed of an air-permeable interior material and an air-impermeable exterior material, and the air in the interior material permeates the interior material and allows the interior material and the exterior material to pass through. A technique for reaching the gap and exhausting to the outside through the gap provided in the exterior material is disclosed. However, the technique of the above-mentioned patent document 4 is for extracting the air and vapor
  • An object of the present invention is to provide a technique capable of appropriately discharging excess air in a packaging bag when forming a lateral joint in the manufacture of a linked packaged product.
  • the manufacturing method of the linked packaged product of the present invention is as follows. (1) In a state where a plurality of absorbent articles arranged in the transport direction are included in a cylindrical continuous sheet transported in the transport direction, the transport is performed before and after each absorbent article in the cylindrical continuous sheet. Connected packaging in which a plurality of packages including the absorbent article and a packaging bag for packaging the absorbent article are connected in one direction by joining transversely intersecting directions to form a transverse joint portion A method of manufacturing a product, wherein the cylindrical continuous sheet includes the plurality of absorbent articles, and corresponds to an upstream end of the absorbent article in the conveyance direction of the cylindrical continuous sheet.
  • the tubular continuous sheet provided with an air vent hole in at least one of the place and the place where the transverse joint portion downstream of the absorbent article is formed in the tubular continuous sheet.
  • An upper side surface and a lower side surface in the up and down direction intersecting the transport direction and the transverse direction in a portion between the absorbent articles adjacent to each other in the supplied supply step and the supplied cylindrical continuous sheet And a horizontal joint portion forming step of forming the horizontal joint portion extending in the transverse direction.
  • the supplied cylindrical continuous sheet is formed with air vent holes in the vicinity of the portion where the lateral joint (end seal) is to be formed.
  • excess air that cannot be accommodated in the packaging bag can be discharged from the air vent hole.
  • the packaging bag is excessively inflated, the lateral joint is incompletely joined, or the lateral joint once formed is torn. No fear.
  • air vent holes are provided to facilitate the discharge of air that cannot be accommodated in the packaging bag when forming the lateral joint, the packaging bag will not expand too much, so there is almost no excess space around the absorbent article. No longer occurs.
  • the absorbent article since the inner surface of the packaging bag and the absorbent article are in close contact with each other and the absorbent article is less likely to move back and forth and left and right within the packaging bag, the absorbent article also moves within the packaging bag in the manufactured linked packaging product. It becomes difficult. Accordingly, when the linked packaged product is packed in a packaging box such as a cardboard box, there is almost no displacement of the absorbent article in the packaging bag, and the packaged product can be easily aligned and arranged in the packaging box.
  • the arrangement of the packaged item is less likely to be disturbed in the packaging box, so that part of the packaged product may be deformed or crushed and the absorbent body of the absorbent article Can be prevented from being deformed and lowering the absorption power.
  • the supplying step includes an air vent hole forming step of forming the air vent hole in the cylindrical continuous sheet, and the air vent hole forming step is executed together with the lateral joint forming step.
  • the tube is formed after the air vent hole is formed.
  • a slight positional shift in the transport direction may occur while the continuous sheet is transported, and the positional relationship between the air vent hole and the lateral joint may be disturbed and deviate from the desired positional relationship. In that case, for example, the air hole and the lateral joint portion overlap each other, and a state in which the air hole is not substantially formed occurs.
  • the formation of the air vent hole is executed together with the formation of the lateral joint portion, the positional relationship between the air vent hole and the lateral joint portion is maintained, and the air vent hole and the lateral joint portion are maintained. It is possible to prevent the positional relationship from being disturbed. That is, it is possible to easily align the air vent hole and the lateral joint portion on the cylindrical continuous sheet being conveyed.
  • the cut or thin part for opening is easily broken. Therefore, when forming a packaged product by forming a laterally joined portion (end seal) before and after the absorbent article by sandwiching a cylindrical continuous sheet in the vertical direction and joining it in the transverse direction, it can fit in the packaging bag. There is no possibility that the excess air escapes and the cut portion or thin portion is broken.
  • an air vent hole is formed on the upper or lower side surface in the vertical direction of the cylindrical continuous sheet, and air is easily moved in the vertical direction when the cylindrical continuous sheet is sandwiched in the vertical direction. The excess air can be easily discharged from the air vent hole before the cut portion or the thin portion is broken.
  • each air vent hole 70 Since a plurality of air vent holes are formed, the size of each air vent hole 70 is reduced to prevent intrusion of foreign matter from the outside, and the inside of the cylindrical continuous sheet is formed when forming a laterally joined portion. It is possible to discharge a large amount of air more reliably.
  • the plurality of air vent holes are formed along the transverse direction adjacent to the lateral joint portion, a large amount of air in the cylindrical continuous sheet can be discharged early when the lateral joint portion is formed. .
  • the air in the package flows in the transport direction over the entire transverse direction, so one end along the transverse direction. Since the air vent hole is formed from the part to the other end, the air in the package can be more surely released from the air vent hole. Accordingly, when the lateral joint portion is formed, it is possible to more reliably prevent a situation in which there is no escape space for air in the packaging bag, the packaging bag is excessively expanded, the packaging bag is excessively expanded, and the lateral joint portion is broken.
  • the method further includes a packaging step of forming the cylindrical continuous sheet including the plurality of absorbent articles, and in the packaging step, a lower conveyance belt that conveys the plurality of absorbent articles in the conveyance direction.
  • a continuous sheet is supplied from a lower side than the lower transport belt, and while transporting the continuous sheet in the transport direction, The side edges of the continuous sheet in the transverse direction are lifted by a bending member into a cylindrical shape, continuously joined in the conveying direction, and the upper side surface in the vertical direction of the cylindrical continuous sheet is (1) thru
  • the escape space for excess air that cannot fit in the packaging bag There is a risk that the packaging bag will swell too much and the vertical joint once formed will be broken.
  • the air vent hole is formed in the same side surface as the side surface provided with the vertical joint portion, that is, in the vicinity of the vertical joint portion, the air in the packaging bag can be released from the air vent hole. As a result, there is no possibility that the air in the packaging bag escapes when forming the lateral joint portion, the packaging bag is excessively inflated, and the vertical joint portion or the like is broken.
  • the vertical joint Since the plurality of air vent holes are formed on the vertical joint and in the vicinity thereof, the vertical joint can be more reliably prevented from being broken.
  • the air vent holes are formed on both side surfaces of the cylindrical continuous sheet, it is possible to prevent the lateral joint portion and the like from being broken more reliably.
  • the transverse component of the plurality of separation holes in the cylindrical continuous sheet further includes a separation hole forming step of forming a plurality of separation holes along the transverse direction in the lateral joint portion.
  • the plurality of separation holes and the air vent holes are formed such that the sum of the plurality of cut holes and the air vent holes is larger than the sum of the transverse length components of the air vent holes.
  • the cylindrical continuous sheet breaks into an upstream portion and a downstream portion in the transport direction at the location of the air vent hole during the transport of the cylindrical continuous sheet.
  • the plurality of separation holes and the air vent holes are so arranged that the sum of the transverse length components of the plurality of separation holes in the cylindrical continuous sheet is larger than the sum of the transverse length components of the air vent holes. Is formed.
  • the air vent holes are formed more roughly in the transverse direction than the plurality of cut holes.
  • the air vent hole is formed so as to be broken at the plurality of separation holes and not to be broken at the air vent hole. Therefore, there is no possibility that the cylindrical continuous sheet in which the lateral joint portion is formed is cut during conveyance.
  • the method further includes a cutting step of cutting a predetermined number of packaged product assemblies, each of which is formed by separating the cylindrical continuous sheet by the lateral joint portion and connected with a plurality of packaged products.
  • the packaged article assembly is sucked and fixed by a transport suction belt disposed on the surface side having the air vent hole on at least one of the upstream side and the downstream side of the cutter that cuts the packaged article assembly.
  • the method for manufacturing a linked packaged product according to any one of (1) to (10), wherein the linked package product is cut every predetermined number.
  • Air in the packaged product is sucked from the air vent hole with a suction belt for transportation arranged on the side having the air vent hole, so that excessive air remaining in the packaged product can be extracted and laterally joined afterwards. There is no possibility that the joining of the portion or the like will be incomplete, or the lateral joint once formed will be broken.
  • connection packaging product which concerns on embodiment. It is a schematic whole figure of the manufacturing apparatus of the connection packaging product which concerns on embodiment. It is a figure which shows an example of the control unit which concerns on embodiment. It is a figure which shows an example of the control unit which concerns on embodiment. It is a figure which shows an example of the horizontal sealer which concerns on embodiment. It is a figure which shows an example of the pattern of the top part of the press member which concerns on embodiment. It is a schematic diagram which shows the detail of an example of the pattern of the top part which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment. It is a figure explaining the manufacturing method of the connection packaging product which concerns on embodiment.
  • FIGS. 1 (A), 1 (B), and 1 (C) show a bottom view, a top view, and a side view of the linked packaged product 1, respectively.
  • a linked packaged product 1 is composed of a plurality of packaged products 2, and these packaged products 2 are coupled to each other in one direction. Yes.
  • the plurality of packaged products 2 are two or more packaged products 2, which are ten packaged products 2 in the present embodiment.
  • the packaged product 2 includes an absorbent article 3 and a packaging bag 4 for packaging the absorbent article 3, and a vertical seal portion (longitudinal joint portion) extending in the longitudinal direction of the packaged product 2 along the longitudinal direction of the connected packaged product 1. ) 6 and lateral seal portions (lateral joint portions) 5 extending in the lateral direction at both ends in the longitudinal direction.
  • the packaged products 2 are connected to each other via first weakening lines (separation holes) 7 provided in the lateral seal portion 5. By separating the linked packaged product 1 along the first weakening line 7, individual packaged products 2 are obtained.
  • the first weakening line 7 has a structure like a perforation in which a plurality of detaching holes are arranged in a line in a broken line shape, and each detaching hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
  • the package 2 has an air vent hole 70.
  • the air vent hole 70 is provided in at least one of the inner sides of the lateral seal portions 5 at both ends of the packaged product 2.
  • the air vent hole 70 is between the portion corresponding to one end portion of the absorbent article 3 in the packaging bag 4 and the lateral seal portion 5 facing one end portion of the absorbent article 3 in the packaging bag 4 ( (1st area
  • a plurality of air vent holes 70 are arranged in a row so as to extend along the lateral seal portion 5 of the package 2 in each of the first region and the second region.
  • Each air vent hole 70 is formed as a portion where the sheet of the packaging bag 4 penetrates, that is, as a cut portion.
  • the air vent hole 70 is formed to be rougher in the lateral direction of the packaged product 2 (the direction parallel to the lateral seal portion 5) than the plurality of separation holes of the first weakening line 7.
  • the plurality of separation holes and the plurality of air vent holes 70 are formed such that the sum of the length components in the lateral direction of the plurality of cut holes is larger than the sum of the length components in the lateral direction of the plurality of air vent holes 70. It is preferred that Thereby, when the packaged product 2 is pulled in the longitudinal direction of the linked packaged product 1 (longitudinal direction of the packaged product 2), the packaged product 2 is more reliably bounded by the plurality of separation holes of the first weakening line 7. It can be separated and the packaged product 2 itself can be prevented from breaking at the plurality of air vent holes 70 as boundaries.
  • the package 2 has a second weakening line 8 extending along the vertical seal portion 6 between the horizontal seal portions 5 at both ends.
  • the package 2 is opened by cutting the side surface of the package 2 along the second weakening line 8.
  • the second weakening line 8 has a structure such as a perforation in which a plurality of opening holes are arranged in a line in a broken line, and each opening hole is recessed or recessed in the sheet of the packaging bag 4. In other words, it is formed as a cut portion or a thin portion.
  • the absorbent article 3 is composed of an absorbent article such as a disposable diaper or a sanitary napkin, and is a pants-type diaper in the present embodiment. Therefore, the absorbent article 3 has elasticity, that is, a property of trying to restore its original shape against deformation.
  • the packaging bag 4 is composed of a sheet material suitable for packaging an absorbent article such as a polyethylene (PE) film or a polypropylene (PP) film.
  • FIG. 2 shows an example of the configuration of the manufacturing apparatus 10 for the linked packaged product 1.
  • the linked packaged product manufacturing apparatus 10 includes an absorbent article manufacturing apparatus 20, a folding unit 10A, a regulation unit 10B, a packaging unit 10C, a joining unit 10D, and a cutting unit 10E. Yes.
  • the absorbent article manufacturing apparatus 20 and the units 10A to 10E are arranged in-line.
  • the connected packaged product manufacturing apparatus 10 is related to the conveyance of the absorbent article 3 and the like in the conveyance direction (MD direction), the transverse direction orthogonal to the conveyance direction (CD direction) and the conveyance direction and the transverse direction. It shall have the up-and-down direction (TD direction) which intersects perpendicularly.
  • MD direction conveyance direction
  • CD direction conveyance direction
  • TD direction up-and-down direction
  • upstream in the transport direction and downstream in the transport direction are also simply referred to as “upstream” and “downstream”
  • upward in the vertical direction” and “lower in the vertical direction” are simply “upper”.
  • the absorbent article 3 shall have a longitudinal direction (L), the width direction (W) orthogonal to a longitudinal direction, and the thickness direction (H) orthogonal to a longitudinal direction and a width direction. And while the absorbent article 3 is being transported, the transport direction, the transverse direction, and the vertical direction overlap the longitudinal direction, the width direction, and the thickness direction. The transport direction, the transverse direction, and the vertical direction are also used as the vertical direction.
  • the absorbent article manufacturing apparatus 20 continuously manufactures the absorbent article 3.
  • the manufactured absorbent article 3 is sequentially conveyed to the folding unit 10 ⁇ / b> A by the conveyor belt 21 directly connected to the absorbent article manufacturing apparatus 20.
  • the folding unit 10 ⁇ / b> A rotates the absorbent article 3 once so that the folded part overlaps with the other parts in the vertical direction while sequentially carrying the absorbent article 3 conveyed side by side in the conveyance direction. Fold it up.
  • the absorbent article 3 is folded twice to form a bi-fold absorbent article 3.
  • the bi-fold absorbent article 3 is sequentially transported to the regulation unit 10B by the transport belt 25.
  • the regulation unit 10B regulates the width in the transverse direction of the absorbent article 3 to be equal to or smaller than the first dimension while sequentially conveying the folded absorbent article 3 conveyed side by side in one direction in the conveyance direction. .
  • the regulated absorbent article 3 is sequentially conveyed to the packaging unit 10C.
  • the packaging unit 10 ⁇ / b> C has the second weakening line 8 and sequentially supplies the regulated absorbent articles 3 inside the continuous sheet 4 b that is continuously formed in a cylindrical shape while being transported in the transport direction.
  • the absorbent article 3 is packaged by forming a seal portion 6 (FIG. 1).
  • the dimension of the inner side of the transverse direction in the continuous sheet 4b formed in a cylindrical shape is the first dimension.
  • the cylindrical continuous sheet 4b containing the absorbent article 3 is sequentially conveyed to the joining unit 10D.
  • the joining unit 10D is a portion between the adjacent absorbent articles 3 in the cylindrical continuous sheet 4b while conveying the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the upper side in the vertical direction.
  • An air vent hole 70 (FIG. 1) is formed, a lateral seal portion 5 (FIG. 1) is formed, and a first weakening line 7 (FIG. 1) is formed.
  • the cutting unit 10E cuts and divides the packaged product assembly 9 by the first weakening line 7 for each preset number of the packaged product assembly 9 formed.
  • the packaged product 2 is divided into ten pieces.
  • a linked packaged product 1 is formed in which a predetermined number of packaged products 2 are linked in one direction.
  • the linked packaged product 1 is packed in a packing box such as a cardboard box.
  • the folding unit 10 ⁇ / b> A includes transport belts 21, 22, and 23.
  • the conveyor belt 21 is disposed facing one belt surface of the conveyor belt 22 stretched in a triangular shape, and the conveyor belt 23 is disposed facing the other belt surface of the conveyor belt 22.
  • the conveyance path formed between the conveyance belt 21 and the conveyance belt 22 can grip the absorbent article 3 that is not folded and can convey the absorbent article 3 in the conveyance direction.
  • the conveyance path formed between the conveyance belt 22 and the conveyance belt 23 can hold the folded absorbent article 3 and convey it in the conveyance direction.
  • the conveyance path on the conveyance belt 22 side intersects the conveyance path on the conveyance belt 21 side at a predetermined angle (example: 90 degrees).
  • the folding unit 10A further includes a folding plate 24 in the vicinity of the intersection.
  • the folding plate 24 crosses the conveyance path on the conveyance belt 21 side at the predetermined angle and enters and exits the intersection so as to be parallel to the conveyance path on the conveyance belt 23 side. Therefore, the absorbency conveyed by the conveyance path by the side of the conveyance belt 21 is match
  • the article 3 is folded by the folding plate 24 into the conveyance path on the side of the conveyance belt 23, thereby enabling the absorbent article 3 to be folded.
  • the regulation unit 10 ⁇ / b> B includes a lower conveyance belt 31 and an upper conveyance belt 32.
  • FIG. 3 shows a side view and a top view of the regulating unit 10B.
  • the lower conveyance belt 31 and the upper conveyance belt 32 are arranged to face each other, and the absorbent article 3 folded between the lower conveyance belt 31 and the upper conveyance belt 32 is conveyed in the conveyance direction.
  • a transport path (space 33s) for transporting to the center is formed.
  • the lower conveyor belt 31 and the upper conveyor belt 32 are disposed so that the center positions in the transverse direction overlap each other, and the width of the lower conveyor belt 31 is formed larger than the width of the upper conveyor belt 32.
  • the regulating unit 10B further includes a pair of regulating members 33 facing each other on both sides in the transverse direction of the space 33s in which the absorbent article 3 is conveyed.
  • 4A and 4B show views of the regulating member 33 as viewed from the upstream side and the downstream side in the transport direction, respectively.
  • the pair of regulating members 33 are guide plates formed of a flat plate member such as metal or resin, and are erected substantially vertically from the conveyance surface of the lower conveyance belt 31 in the vertical direction.
  • a region surrounded by the pair of regulating members 33 and the conveyance rolls 31a and 32a is an entrance of the conveyance path (space 33s) of the absorbent article 3, and a region surrounded by the pair of regulating members 33 and the conveyance rolls 31b and 32b. It becomes an exit of the conveyance path (space 33s) of the absorbent article 3.
  • the distance between the pair of regulating members 33 in the transverse direction that is, the inner transverse distance is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4B). ) Is getting shorter as you head to. That is, the inner transverse distance is ds1 at the upstream end portion 33a, but is de1 ( ⁇ ds1) at the downstream end portion 33b.
  • the inner transverse distance ds1 at the upstream end 33a is set to a value that is slightly larger than the transverse width of the absorbent article 3 before the regulation step.
  • the inner transverse distance de1 at the downstream end portion 33b is set to be equal to or smaller than a first dimension D01 described later. Therefore, by passing the absorbent article 3 between the pair of regulating members 33, the position of the absorbent article 3 can be corrected and the width of the absorbent article 3 in the transverse direction can be regulated to the first dimension D01 or less.
  • the vertical distance between the lower conveyance belt 31 and the upper conveyance belt 32 is determined from the upstream end 33a (FIG. 4A) to the downstream end 33b (FIG. 4). (B) is getting shorter. That is, the inner vertical distance is ds2 at the upstream end 33a, but de2 ( ⁇ ds2) at the downstream end 33b.
  • the inner vertical distance ds2 at the upstream end portion 33a is set to a value larger than the vertical thickness of the absorbent article 3 before the regulation step.
  • the inner vertical distance de2 at the downstream end 33b is set to a second dimension D02 or less, which will be described later. Therefore, by passing the absorbent article 3 between the lower conveyance belt 31 and the upper conveyance belt 32, the thickness of the absorbent article 3 in the vertical direction can be regulated to the second dimension D02 or less.
  • the packaging unit 10 ⁇ / b> C includes a weakening line former 41 including a pair of upper and lower rolls 46 and 47.
  • the pair of rolls 46 and 47 rotate around the rotation axis along the transverse direction, and the continuous sheet 4a is drawn, held and sent between them.
  • the roll 46 is a weak line blade roll having a weak line forming blade having a shape corresponding to the second weak line 8 on the outer peripheral surface along the conveying direction.
  • the perforated line has a perforated blade. It is a blade roll.
  • the roll 47 is an anvil roll that receives the weakening wire blade by a smooth outer peripheral surface.
  • the packaging unit 10 ⁇ / b> C further includes a bending member 43 disposed adjacent to the downstream side of the lower conveyance belt 31.
  • the bending member 43 is continuously supplied from the lower side of the lower conveyance belt 31 and the bending member 43 from the lower side of the continuous sheet 4a fed from the weak line forming device 41 and conveyed by the conveying roller 42.
  • the bending member 43 lifts both side edges in the transverse direction of the continuous sheet 4a into a cylindrical shape, and overlaps both side edges to form an overlapping portion. be able to.
  • the cylindrical continuous sheet 4 b is formed in the bending member 43.
  • the upstream inlet of the bending member 43 and the outlet (FIG. 4B) of the conveyance path (space 33s) of the absorbent article 3 face each other.
  • the cylindrical continuous sheet 4b is formed in a cylindrical shape along the inner wall of the bending member 43, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension. D02.
  • the first dimension D01 is equal to or greater than the transverse width of the restricted absorbent article 3
  • the second dimension D02 is equal to or greater than the thickness of the restricted absorbent article 3 in the vertical direction. Therefore, the regulated absorbent article 3 can be inserted into the inside 4bs of the cylindrical continuous sheet 4b.
  • the edge parts on both sides in the transverse direction of the cylindrical continuous sheet 4b are in contact with each other to form an overlapping portion, they are not joined at this stage.
  • the absorbent article 3 from the regulation unit 10B is supplied to the bending member 43 at the upstream end thereof.
  • the continuous sheet 4a is formed in a cylindrical shape, and the cylindrical continuous sheet 4b is formed. Therefore, it can be said that the absorbent article 3 is supplied into the continuous sheet 4b formed continuously in a cylindrical shape by the bending member 43.
  • the packaging unit 10 ⁇ / b> C further includes a vertical sealer 44 and a conveyance belt 45.
  • the vertical sealer 44 and the conveyor belt 45 are arranged so as to face each other.
  • the conveyor belt 45 conveys the cylindrical continuous sheet 4b containing the absorbent article 3 in the conveyance direction, and the vertical sealer 44 has a cylindrical continuous shape.
  • the overlapping portion formed on the upper side of the sheet 4b is sealed to form the vertical seal portion 6 (FIG. 1). Examples of the sealing method include heat fusion by heating.
  • the joining unit 10D includes a pair of conveyor belts 51 and 52 and a lateral sealer 53.
  • the pair of conveying belts 51 and 52 are arranged to face each other, and hold the cylindrical continuous sheet 4b containing the absorbent article 3 between the conveying belts 51 and 52, up to the lateral sealer 53 in the conveying direction.
  • FIG. 5 shows a side view of the horizontal sealer 53, which includes a pair of upper and lower rolls 54 and 55.
  • the pair of rolls 54 and 55 rotate around the rotation axis along the transverse direction, and the cylindrical continuous sheet 4b is drawn between, gripped and sent out between them.
  • the roll 54 has a plurality of pressing members 54a on the outer peripheral surface, and has four pressing members 54a in the present embodiment.
  • the plurality of pressing members 54 a are arranged at equal intervals with respect to the circumferential direction of the outer peripheral surface of the roll 54.
  • the roll 55 has a plurality of pressing members 55a on the outer peripheral surface, and has four pressing members 55a in the present embodiment.
  • the plurality of pressing members 55 a are arranged at equal intervals in the circumferential direction of the outer peripheral surface of the roll 55.
  • the pressing member 54a protrudes outward from the outer peripheral surface of the roll 54 and extends in the transverse direction.
  • a pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top 54 s of the pressing member 54 a.
  • the pressing member 55a protrudes outward from the outer peripheral surface of the roll 55 and extends along the transverse direction.
  • a pattern for forming the lateral seal portion 5, the first weakening line 7, and the air vent hole 70 is formed on the top portion 55 s of the pressing member 55 a.
  • one of the top 54s pattern and the top 55s pattern is a convex pattern, and the other is a smooth pattern that receives the convex pattern.
  • the pattern of the top 54s is a convex pattern
  • the pattern of the top 55s is a smooth pattern that receives the convex pattern.
  • FIG. 6 is a top view showing an example of the pattern of the top 54s of the pressing member 54a.
  • a pattern 73 for forming the first weakening line 7, a pattern 72 for forming the lateral seal portion 5, and a pattern 71 for forming the air vent hole 70 are formed on the top 54 s.
  • the pattern 73 is a pattern that is provided so as to extend in the transverse direction at the center in the transport direction of the top portion 54s, and that substantially rectangular convex portions having a longitudinal direction in the transverse direction are arranged in a row in the transverse direction.
  • the pattern 72 is a pattern that is provided on both sides of the pattern 73 in the transport direction so as to extend in the transverse direction, and in which substantially square convex portions are arranged in a matrix in the transverse direction and the transport direction.
  • the pattern 71 is a pattern that is provided so as to extend in the transverse direction on the opposite side of the pattern 73 of the pattern 72, and in which substantially square convex portions are arranged in a row in the transverse direction.
  • FIG. 7 is a schematic diagram showing details of an example of the pattern of the top 54s.
  • the convex portion 73u of the pattern 73 is a rectangle having a length Lm3 in the transport direction ⁇ a length Lc3 in the transverse direction.
  • the first weakening line 7 cannot be cut during normal conveyance, but from the viewpoint of enabling cutting in the cutting step, Lm3 is preferably in the range of 0.1 to 1.0 mm, and Lc3 is in the range of 0.2 to 8. A range of 0 mm is preferred.
  • the pitch in the transverse direction (not shown) between the convex portions 73u of the pattern 73 is preferably in the range of 0.4 to 12.0 mm.
  • the distance K2 in the transport direction between the pattern 73 and the pattern 72 is preferably in the range of 1.0 to 6.0 mm.
  • the convex portion 72u of the pattern 72 is a rectangle having a length Lm2 in the transport direction ⁇ a length Lc2 in the transverse direction.
  • both Lm2 and Lc2 are preferably in the range of 0.2 to 2.0 mm.
  • the pitch Pm2 in the transport direction and the pitch Pc2 in the transverse direction between the convex portions 72u of the pattern 72 are preferably in the range of 0.4 to 4.0 mm.
  • the distance K1 in the transport direction between the pattern 72 and the pattern 71 is preferably in the range of 1.0 to 6.0 mm.
  • the convex portion 71u of the pattern 71 is a rectangle having a length Lm1 in the transport direction ⁇ a length Lc1 in the transverse direction.
  • both Lm1 and Lc1 are preferably in the range of 0.1 to 2.0 mm.
  • the transverse pitch Pc1 between the convex portions 71u of the pattern 71 is preferably in the range of 0.4 to 4.0 mm.
  • the patterns 71, 72, and 73 are rectangles such as rectangles and squares.
  • the present invention is not limited to this example, and may be other polygons, circles, ellipses, or the like. There may be.
  • the pattern 73 and the pattern 71 are formed such that the sum of the length components in the transverse direction of the pattern 73 is larger than the sum of the length components in the transverse direction of the pattern 71. That is, it is preferable that the pattern 71 is formed to be rougher in the transverse direction than the pattern 73. As a result, the air vent hole 70 can be formed rougher in the transverse direction than the first weakening line 7. Therefore, when the packaged product 2 is pulled in the longitudinal direction of the connected packaged product 1, the first weakening line 7 is more reliably produced. The packaged product 2 can be cut off at the boundary, and the packaged product 2 itself can be prevented from breaking at the air vent hole 70 as the boundary.
  • the pair of rolls 54 and 55 rotate in synchronization with each other so that one pressing member 54a and one pressing member 55a are arranged facing each other.
  • the pair of pressing members 54a and 55a that face each other is a portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4b, and the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction. Is inserted. At that time, the pair of pressing members 54a and 55a are in contact with the upper side surface 4b1 and the lower side surface 4b2 in the order of the pattern 71, the pattern 72, the pattern 73, the pattern 72, and the pattern 71.
  • the cylindrical continuous sheet 4b is punched out with the pattern 71 at the location where the pair of pressing members 54a and 55a are sandwiched to form the air vent hole 70 (FIG. 1), and the heated pattern 72 is heat-sealed.
  • the seal portion 5 (FIG. 1) is formed, the cylindrical continuous sheet 4b is punched out with the pattern 73 to form the first weakening line 7 (FIG. 1), and the horizontal seal portion is formed by heat-sealing the heated pattern 72.
  • 5 (FIG. 1) is formed, and the cylindrical continuous sheet 4b is punched out with a pattern 71 to form an air vent hole 70 (FIG. 1).
  • the packaged article assembly 9 is formed.
  • a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction adjacent to the lateral seal portion 5. Will be. Moreover, the air vent hole 70 is formed in both the upper side surface 4b1 and the lower side surface 4b2 of the cylindrical continuous sheet 4b.
  • the cutting unit 10E includes a pair of conveying belts 61 and 62 and a cutter 63.
  • the pair of conveyor belts 61 and 62 are arranged to face each other, and convey the packaged article coupling body 9 between the conveyor belts 61 and 62 and convey it to the cutter 63 in the conveyance direction.
  • the cutting device 63 includes a pair of rollers 64 and 65 arranged to face each other.
  • the pair of rollers 64 and 65 conveys the packaged article coupling body 9 between the rollers 64 and 65.
  • the conveyance speed of the packaged article coupling body 9 by the rollers 64 and 65 is made faster than the conveyance speed of the packaged article coupling body 9 by the conveyor belts 61 and 62.
  • the packaged article assembly 9 is cut.
  • the linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
  • the cutting unit 10E further includes a pair of transport belts 66 and 67, and the pair of transport belts 66 and 67 are arranged so as to face each other, and the connected package product 1 is held between the transport belts 66 and 67 while being held.
  • the connected packaged product 1 is transported to a packing device (not shown) for packing the.
  • the transport belt (in the present embodiment, the transport belt 61 is disposed on the side of the surface having the air vent hole 70 in the packaged article assembly 9).
  • the transport belt (the transport belt 66 in the present embodiment) disposed on the side of the connected packaged product 1 having the air vent hole 70.
  • the transport belt (the transport belt 66 in the present embodiment) disposed on the side of the connected packaged product 1 having the air vent hole 70.
  • the air in the packaged product 2 can be sucked from the air vent hole 70 by the suction belt for conveyance disposed on the side having the air vent hole 70. Thereby, even if excessive air remains in the packaged product 2 at this stage, the remaining air can be removed, and there is no possibility that the joining of the lateral seal portion 5 and the like will be incomplete or torn. .
  • a manufacturing process, a folding process, a regulation process, a packaging process, a joining process, and a cutting process are executed.
  • the absorbent article 3 is conveyed as indicated by a black arrow, and these steps are sequentially executed by the absorbent article manufacturing apparatus 20 and the units 10A to 10E, respectively.
  • 8 to 10 are diagrams for explaining a method of manufacturing a linked packaged product. 8 to 9 schematically show the top surfaces of absorbent articles and the like in each manufacturing process (the upper side of the drawing is the upstream side in the transport direction, the lower side is the downstream side), and FIG. 10 is the bonding process. A cross section of an absorbent article or the like is schematically shown (the right side of the drawing is the upstream side in the transport direction, and the left side is the downstream side).
  • the absorbent article 3 is continuously manufactured by the absorbent article manufacturing apparatus 20.
  • the absorbent article 3 is a pants-type diaper as shown to FIG. 8 (A), and is provided with the waist part 3a which covers a wearer's waist part, and the crotch part 3b containing an absorber.
  • the end of the abdomen portion 3b1 is coupled to the abdomen side surface 3a1 of the waistline portion 3a
  • the end portion of the back side portion 3b2 is coupled to the back side surface 3a2 of the waistline portion 3a.
  • the manufactured absorbent article 3 is sequentially transported to the folding unit 10A by the transport belt 21 directly connected to the absorbent article manufacturing apparatus 20.
  • the diaper of the absorbent article 3 is conveyed so that the crotch portion 3b is located on the downstream side.
  • the number of hits is the same. Since the processing amount of the conveyor belt 21 is the same as the processing amount of each unit 10A to 10E, it can be said that the absorbent article manufacturing apparatus 20 and each unit 10A to 10E are continuously manufactured and packaged. .
  • the manufactured absorbent article 3 is folded by the folding unit 10A. That is, in the folding unit 10A, the absorbent article 3 is continuously conveyed while being sandwiched between the conveyor belts 21 and 22, and the central portion of the absorbent article 3 in the conveyance direction has come to a position between the conveyance rolls 22a and 23a. At the timing, the central portion of the absorbent article 3 is projected by the folded plate 24 in the thickness direction. Thereby, the absorbent article 3 is pushed in between the transport rolls 22a and 23a while being folded in two, and is sandwiched between the pair of transport belts 22 and 23. The absorbent article 3 folded in two is sequentially transported to the regulation unit 10B by the pair of transport belts 22, 23 and the transport belt 25.
  • the diaper of the absorbent article 3 shown in FIG. 8 (A) is folded as shown in FIG. 8 (B) when the folding plate 24 contacts the crease FL.
  • the crease FL is formed so as to pass through the vicinity of the end portion on the downstream side in the transport direction of the waistline portion 3a.
  • the absorbent article 3 is conveyed so that the crease FL is positioned on the downstream side of the absorbent article 3.
  • the width of the absorbent article 3 in the transverse direction is W1, which is substantially the same as before the folding step.
  • the thickness of the absorbent article 3 in the vertical direction is H1, which is increased by folding.
  • the size of the folded absorbent article 3 is regulated by the regulation unit 10B. That is, in the regulation unit 10 ⁇ / b> B, the absorbent article 3 that has been transported by the transport belt 25 is transported by the lower transport belt 31 in the transport direction. At this time, in the pair of regulating members 33, the inner transverse distance ds1 of the upstream end portion 33a (FIG. 4A) is set longer than the transverse width W1 of the absorbent article 3 before the regulating step. Therefore, the absorbent article 3 is easily inserted into the space 33s in the transverse direction.
  • the width of the absorbent article 3 in the transverse direction is regulated by the regulating member 33 and becomes smaller.
  • the width in the transverse direction of the absorbent article 3 is the same as the inner transverse distance de1 of the downstream end portion 33b of the regulating member 33 at the downstream end portion 33b of the regulating member 33 (FIG. 4B). And is carried out of the regulating member 33.
  • the absorbent article 3 is passed between the pair of regulating members 33, so that the transverse width becomes W2 ⁇ del as shown in FIG. It becomes smaller than the width W1. Thereby, a repulsive force that spreads in the transverse direction is generated in the absorbent article 3.
  • the absorbent article 3 is crossed by passing the absorbent article 3 between the pair of regulating members 33.
  • the width in the direction can be easily regulated to the first dimension D01 or less.
  • the inner vertical distance ds2 of the upstream end (FIG. 4A) is the vertical direction of the absorbent article 3 before the regulation process. Since it is set to be longer than the thickness H1, the absorbent article 3 can be easily inserted into the space 33s in the vertical direction.
  • the thickness of the absorbent article 3 in the vertical direction is restricted by the lower transport belt 31 and the upper transport belt 32 and becomes smaller. As a result, the thickness of the absorbent article 3 in the vertical direction at the end portion 33b on the downstream side (FIG.
  • the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32, so that the vertical thickness becomes H2 ⁇ de2, and the vertical thickness before the regulation step. It becomes smaller than H1. Thereby, a repulsive force is generated in the absorbent article 3 to spread in the vertical direction.
  • the absorbent article 3 is passed between the lower conveyance belt 31 and the upper conveyance belt 32.
  • the thickness of the absorbent article 3 can be easily regulated to the second dimension D02 or less.
  • the absorbent article 3 whose size is regulated is packaged by a cylindrical continuous sheet by the packaging unit 10C. That is, the continuous sheet 4a having the first weakening line 8 in the transport direction is supplied to the folding member 43 from the lower side of the lower transport belt 31 and is transported in the transport direction, while being folded in the transverse direction by the folding member 43. The edges are lifted and their side edges are overlapped. As a result, a cylindrical continuous sheet 4b having an overlapping portion extending in the transport direction is formed, the inner dimension in the transverse direction is the first dimension D01, and the inner dimension in the vertical direction is the second dimension D02. .
  • the absorbent article 3 conveyed from the regulation unit 10B is regulated by the regulation unit 10B so that the width is W2 ⁇ de1 ⁇ D01 and the thickness is H2 ⁇ de2 ⁇ D02. Therefore, the regulated absorbent article 3 is easily inserted into the continuous sheet 4 b that is being formed into a cylindrical shape within the bending member 43. As a result, a cylindrical continuous sheet 4b including the absorbent article 3 is formed.
  • the cylindrical continuous sheet 4b containing the absorbent article 3 is conveyed in the conveyance direction by the conveyance belt 45, and the above-described overlapping portion on the cylindrical continuous sheet 4b is sealed by the vertical sealer 44, and the vertical seal portion 6 (FIG. 1) is formed.
  • the cylindrical continuous sheet 4b is held in a shape in which the inner dimension in the transverse direction is approximately the first dimension D01, and the inner dimension in the vertical direction is approximately the second dimension D02.
  • the diaper of the absorbent article 3 has a repulsive force that spreads in the transverse direction or the up-down direction, so that the cylindrical continuous sheet 4b is pushed and expanded from the inside as shown in FIG. It is stretched.
  • the absorbent article 3 since the absorbent article 3 is pressed from the periphery by the cylindrical continuous sheet 4b, the absorbent article 3 can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article can be fixed at a predetermined position in the cylindrical continuous sheet.
  • the front and back of the absorbent article in the cylindrical continuous sheet containing the absorbent article 3 are joined to form the packaged article assembly 9. That is, the cylindrical continuous sheet 4b including the absorbent article 3 is further conveyed to the horizontal sealer 53 in the conveyance direction while being held between the pair of conveyance belts 51 and 52. A portion between the absorbent articles 3 adjacent to each other in the cylindrical continuous sheet 4 b is pressed and sandwiched between the pressing members 54 a and 55 a of the pair of rolls 54 and 55 of the horizontal sealer 53. As a result, as shown in FIG.
  • the air vent hole 70 is formed by the pattern 71 in order from the downstream side in the conveying direction at the sandwiched portion (air vent hole forming step), and the horizontal seal portion 5 is formed by the pattern 72.
  • the first weakening line 7 is formed by the pattern 73 (separation hole forming process)
  • the horizontal seal portion 5 is formed by the pattern 72 (lateral joint forming process)
  • the pattern 71 is formed.
  • the air vent hole 70 is formed (air vent hole forming step).
  • the packaged article coupling body 9 is formed.
  • the diaper of the absorbent article 3 is stretched so that each packaged product 2 of the packaged product coupling body 9 is expanded from the inside.
  • the formation of the air vent hole 70 air vent hole forming process
  • the formation of the lateral seal portion 5 lateral joint forming process
  • the formation of the first weakening line 7 separation hole forming process
  • the volume of the portion of the cylindrical continuous sheet 4b decreases.
  • the air 80 of the said part ie, the air 80 of the downstream of the absorbent article 3 in FIG. 10 (A) becomes surplus. Therefore, it is necessary to discharge the excess air 80.
  • One place where the excess air 80 is discharged is upstream of the absorbent article 3, but it is difficult for the absorbent article 3 to discharge all the excess air 80 because it is blocked by the absorbent article 3.
  • the cylindrical continuous sheet 4b is provided between the lateral seal portion 5 on the downstream side in the conveying direction and the downstream end portion of the absorbent article 3. Since the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the cylindrical continuous sheet 4b swells too much, and joining of the horizontal seal
  • the cylindrical continuous sheet 4b Since the volume decreases, the air 80 in that portion, that is, the air 80 upstream of the absorbent article 3 in FIG. 10B becomes redundant. Therefore, the cylindrical continuous sheet 4b may swell too much, and the joining of the lateral seal portion 5 may be incomplete or torn.
  • the cylindrical continuous sheet 4b has a space between the upstream side seal portion 5 and the upstream end of the absorbent article 3 in the conveying direction.
  • the air hole 70 is formed at the location, the excess air 80 can be discharged from the air hole 70. Thereby, it can prevent that the packaging bag 4 formed from the cylindrical continuous sheet 4b expands too much, and joining of the horizontal seal
  • the number of the air vent holes 70 may be one or a plurality as in the present embodiment, depending on the relationship between the amount of air to be discharged and the size of the air vent holes 70. In the case of a plurality, the size of the air vent hole 70 per piece can be reduced, the entry of foreign matter from the outside can be prevented more reliably, and excessive air can be discharged more reliably during the lateral joint forming process. This is preferable.
  • the step (air vent hole forming step) before the horizontal joint forming step is referred to as a supplying step of supplying the cylindrical continuous sea 4b provided with the predetermined air vent hole 70 to the horizontal joint forming step.
  • the predetermined air vent hole 70 is located on the upstream side of the absorbent article 3 in the cylindrical continuous sheet 4b and at a location corresponding to the upstream end of the absorbent article 3 in the transport direction of the cylindrical continuous sheet 4b.
  • the formation of the air vent hole 70 and the formation of the lateral seal portion 5 are performed at positions separated from each other in the transport direction, after the air vent hole 70 is formed, the cylindrical continuous sheet 4b is being transported. As a result, a slight positional shift occurs in the conveying direction, and the positional relationship between the air vent hole 70 and the lateral seal portion 5 is disturbed. For example, the air vent hole 70 and the lateral seal portion 5 overlap each other. A non-formed state may occur. Therefore, in this case, it takes time and effort to adjust the positional deviation in the transport direction so that the state does not occur.
  • the positional relationship between the air vent hole 70 and the lateral seal portion 5 can be easily maintained by a desired positional relationship. That is, it is not necessary to align the air vent hole 70 and the lateral seal portion 5 on the cylindrical continuous sheet 4b being conveyed.
  • the air vent hole 70 is preferably formed on the upper side surface 4b1 or the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b.
  • air easily moves in the vertical direction due to the reaction, so that excess air is removed before the second weakening line 8 breaks. It can be easily discharged from the air vent hole.
  • it is formed on the same side surface as the second weakening line 8 of the cylindrical continuous sheet 4b as in the present embodiment, that is, on both sides in the transverse direction of the second weakening line 8 on the upper side surface 4b1 in the vertical direction. It is preferable. Thereby, before the 2nd weakening line 8 breaks, the excess air in the packaging bag 4 can be escaped from the air vent hole 70 in a large amount and at an early stage.
  • the air vent hole 70 is preferably formed in the transverse direction adjacent to the lateral seal portion 5 on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. Thereby, when forming the horizontal seal
  • the air vent hole 70 may be formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b as long as a plurality of air vent holes 70 are formed adjacent to the horizontal seal portion 5 along the transverse direction. .
  • the air vent hole 70 may be formed from one end to the other end along the transverse direction on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b as in the present embodiment. preferable.
  • the reason is as follows. That is, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3, the air in the packaging bag 4 flows in the transport direction over the entire transverse direction. Therefore, a plurality of air vent holes 70 are formed on the upper side surface 4b1 in the vertical direction of the cylindrical continuous sheet 4b from one end to the other end along the transverse direction, that is, across the entire transverse direction. By doing so, the air in the packaging bag 4 can be escaped from the air vent hole 70 efficiently and reliably. If a plurality of air vent holes 70 are formed from one end to the other end along the transverse direction, the air vent hole 70 is formed on the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Also good.
  • the air vent hole 70 is preferably formed on the same surface as the vertical seal portion 6 of the cylindrical continuous sheet 4b as in the present embodiment, that is, the upper side surface 4b1 in the vertical direction.
  • the reason is as follows. That is, since the joining of the vertical seal portion 6 is easy to break immediately after joining, when the package 2 is formed by forming the transverse seal portion 5 before and after the absorbent article 3, the excess air in the packaging bag 4 There is a risk that the evacuation site will disappear and the packaging bag 4 will swell too much, and the vertical seal portion 6 once formed may be broken.
  • the packaging bag can be broken without breaking the vertical seal portion 6. 4 can escape from the air vent hole 70.
  • the air vent hole 70 is formed so as to intersect the vertical seal portion 6 as in the present embodiment. Thereby, the air vent hole 70 is formed on the vertical seal portion 6 and in the vicinity thereof, and the vertical seal portion 6 can be prevented from being broken more reliably.
  • the air vent hole 70 is formed on both the upper side surface 4b1 and the lower side surface 4b2 in the vertical direction of the cylindrical continuous sheet 4b. Thereby, more air can escape from the air vent holes 70 on both side surfaces of the cylindrical continuous sheet 4b.
  • the absorbent article 3 is positioned even if a part of the air in the cylindrical continuous sheet 4b flows upstream with the formation of the lateral seal portion 5, The position of the absorbent article 3 in the upstream cylindrical continuous sheet 4b becomes difficult to shift. Thereby, the situation that the absorbent article 3 in the cylindrical continuous sheet 4b will be pinched
  • the packaged product assembly 9 is cut and divided into a predetermined number of the packaged products 2 to form the linked packaged product 1. That is, the packaged article assembly 9 is conveyed in the conveying direction while being held between the pair of conveying belts 61 and 62, and is conveyed while being held between the pair of rollers 64 and 65.
  • the rollers 64 and 65 convey the packaged article coupling body 9 at substantially the same speed as the conveyor belts 61 and 62.
  • the rollers 64 and 65 convey the packaged article coupling body 9 at a higher speed than the conveyor belts 61 and 62.
  • the upstream portion of the packaged article coupling body 9 is gripped by the conveyor belts 61 and 62, and the packaged article coupling body 9 is cut along the first weakening line 7. In this way, a linked packaged product 1 in which a predetermined number of packaged products 2 are linked is formed.
  • the linked packaged product 1 is conveyed in the conveying direction while being gripped between the pair of conveying belts 66 and 67, and is conveyed to a packing device for packing the linked packaged product 1.
  • the linked packaged product 1 is manufactured.
  • an air vent hole 70 is formed in the transported cylindrical continuous sheet 4b near the portion where the lateral seal portion 5 is to be formed. Therefore, when forming the package 2 by forming the lateral seal portions 5 before and after the absorbent article 3 of the cylindrical continuous sheet 4b, excess air 80 that cannot be stored in the packaging bag 4 is discharged from the air vent hole 70. can do. As a result, there is no risk of air escaping in the packaging bag 4, and the packaging bag 4 swells too much, resulting in incomplete or broken joining of the horizontal seal portion 5 and the vertical seal portion 7.
  • the air vent hole 70 is formed corresponding to each of the lateral seal portions 5 at both ends of the packaged product 2 as in the present embodiment, it is preferable from the viewpoint of exhausting excess air reliably. Is not limited to this. That is, as long as excess air can be reliably exhausted depending on the size, position, shape, and the like of the air vent hole 70, it may be formed corresponding to only one of the lateral seal portions 5 at both ends of the package 2. In that case, since the holes formed in the packaged product 2 are reduced, the strength of the packaging bag 4 can be relatively increased.
  • the absorbent article 3 in the packaging process, can be positioned at a predetermined position in the cylindrical continuous sheet 4b. That is, the absorbent article 3 can be fixed at a predetermined position in the cylindrical continuous sheet 4b.
  • the air bag 70 is provided with the air vent hole 70 and the excess air 80 is discharged from the packaging bag 4, so that the packaging bag 4 does not swell excessively, and thus the absorbent article 3. There will be no extra space around. Thereby, the state which the packing bag 4 inner surface and the absorbent article 3 contacted closely, ie, the state by which it was positioned, can be maintained.
  • the absorbent article 3 is difficult to move in the packaging bag 4, and thus the absorbent article 3 is difficult to move in the packaging bag 5 even in the manufactured linked packaged product 1. Accordingly, when the linked packaged product 1 is packed in a packaging box such as a cardboard box, the absorbent article 3 is hardly displaced in the packaging bag 4, so that the packaged product 2 is easily aligned in the packaging box. be able to. Therefore, even if the packaging box is shaken by transportation or the like, the arrangement of the packaged product 2 is not easily disturbed in the packaging box, so that a part of the packaged product 2 is deformed or crushed and the absorbent article 3 It can be prevented that the absorbent body is deformed and the absorption power is reduced.
  • the thickness of the absorbent article 3 in the vertical direction is regulated by the upper conveying belt 32 (or a guide plate is acceptable), but the present embodiment is not limited to this example.
  • the vertical thickness of the absorbent article 3 and its variation are small and the vertical regulation is not necessary, the vertical thickness of the absorbent article 3 may not be regulated. In that case, the upper conveyance belt 32 can be omitted.
  • the absorbent article 3 is folded only once, but the present embodiment is not limited to this example, and may not be folded, or may be folded two or more times. In the case of folding twice or more, it is preferable to transport the absorbent article 3 so that the uppermost fold line is positioned on the downstream side of the absorbent article 3. Thereby, it is possible to suppress the portion of the absorbent article 3 ahead of the fold from being swung up by the upper conveyance belt 32.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

La présente invention concerne un procédé de production de produits emballés reliés qui est configuré de sorte que des parties de jonction transversale soient formées sur une feuille tubulaire continue (4b) contenant une pluralité d'articles absorbants (3) dans celle-ci par des parties de liaison de la feuille tubulaire continue devant et derrière chaque article absorbant dans une direction transversale tout en transportant la feuille tubulaire continue dans une direction de transport et, par conséquent, un produit emballé relié (1) est produit dans lequel une pluralité de produits emballés (2) comprenant un sac d'emballage contenant l'article absorbant dans celui-ci sont reliés dans une direction. Le procédé de production comprend les étapes de : fourniture d'une feuille tubulaire continue contenant une pluralité d'articles absorbants dans celle-ci et comportant des trous d'aération entre une partie de la feuille tubulaire continue qui correspond à une extrémité de chaque article absorbant dans la direction de transport et une partie de la feuille tubulaire continue dans laquelle une partie de jonction transversale opposée à l'extrémité doit être formée ; et formation de parties de jonction transversale s'étendant dans la direction transversale de la feuille tubulaire continue délivrée. Le procédé de production de produits emballés reliés permet que l'excès d'air dans les sacs d'emballage soit correctement libéré pendant la formation des parties de jonction transversale.
PCT/JP2015/084568 2015-12-09 2015-12-09 Procédé de production de produits emballés reliés Ceased WO2017098613A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2016521803A JP6022122B1 (ja) 2015-12-09 2015-12-09 連結包装製品の製造方法
PCT/JP2015/084568 WO2017098613A1 (fr) 2015-12-09 2015-12-09 Procédé de production de produits emballés reliés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/084568 WO2017098613A1 (fr) 2015-12-09 2015-12-09 Procédé de production de produits emballés reliés

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JP (1) JP6022122B1 (fr)
WO (1) WO2017098613A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011064Y1 (fr) * 1974-02-18 1975-04-07
JPS57101790U (fr) * 1980-12-16 1982-06-23
JPS5820605A (ja) * 1981-07-17 1983-02-07 トキワ工業株式会社 被包装物の包装方法
WO2002094678A1 (fr) * 2001-05-24 2002-11-28 The Procter & Gamble Company Articles absorbants jetables loges dans des sachets relies les uns aux autres
JP2004168405A (ja) * 2002-11-22 2004-06-17 Myojo Foods Co Ltd ガゼット包装によるマルチパック包装体の包装方法
JP2011140344A (ja) * 2010-01-08 2011-07-21 Unicharm Corp 吸収性物品の連続包装体
WO2013031647A1 (fr) * 2011-08-31 2013-03-07 ユニ・チャーム株式会社 Emballage d'article absorbant
WO2014024672A1 (fr) * 2012-08-08 2014-02-13 ユニ・チャーム株式会社 Dispositif et procédé de production d'un article raccordé d'articles individuels emballés pour articles absorbants

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011064Y1 (fr) * 1974-02-18 1975-04-07
JPS57101790U (fr) * 1980-12-16 1982-06-23
JPS5820605A (ja) * 1981-07-17 1983-02-07 トキワ工業株式会社 被包装物の包装方法
WO2002094678A1 (fr) * 2001-05-24 2002-11-28 The Procter & Gamble Company Articles absorbants jetables loges dans des sachets relies les uns aux autres
JP2004168405A (ja) * 2002-11-22 2004-06-17 Myojo Foods Co Ltd ガゼット包装によるマルチパック包装体の包装方法
JP2011140344A (ja) * 2010-01-08 2011-07-21 Unicharm Corp 吸収性物品の連続包装体
WO2013031647A1 (fr) * 2011-08-31 2013-03-07 ユニ・チャーム株式会社 Emballage d'article absorbant
WO2014024672A1 (fr) * 2012-08-08 2014-02-13 ユニ・チャーム株式会社 Dispositif et procédé de production d'un article raccordé d'articles individuels emballés pour articles absorbants

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