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WO2012011199A1 - Papier de soie et produits pour papier de soie - Google Patents

Papier de soie et produits pour papier de soie Download PDF

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Publication number
WO2012011199A1
WO2012011199A1 PCT/JP2010/064471 JP2010064471W WO2012011199A1 WO 2012011199 A1 WO2012011199 A1 WO 2012011199A1 JP 2010064471 W JP2010064471 W JP 2010064471W WO 2012011199 A1 WO2012011199 A1 WO 2012011199A1
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WIPO (PCT)
Prior art keywords
tissue paper
tissue
paper
storage box
ply
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Ceased
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PCT/JP2010/064471
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English (en)
Japanese (ja)
Inventor
記瑞 平田
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Daio Paper Corp
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Daio Paper Corp
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Publication date
Application filed by Daio Paper Corp filed Critical Daio Paper Corp
Priority to CN201080067423.5A priority Critical patent/CN102958415B/zh
Publication of WO2012011199A1 publication Critical patent/WO2012011199A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor

Definitions

  • the present invention relates to tissue paper and tissue paper products.
  • the tissue paper in the domestic market is broadly divided into non-moisturizing tissue and moisturizing tissue.
  • the moisturizing tissue is a tissue produced by applying a moisturizing agent such as glycerin to a tissue base paper that has been made
  • the non-humidifying tissue is a general tissue that does not apply a moisturizing agent to the tissue base paper.
  • the use of tissue paper is mainly for personal use, mainly for facial use including nasal cover, and moisturizing tissue is considered to be a product specification specialized for nasal blow.
  • tissue paper has been used for facial applications, mainly for nasal clasps, and so many attempts have been made in the past to improve the touch and quality improvements have been repeated.
  • various softeners are added to the raw materials to improve the flexibility of the product.
  • Many supple fibers with low fiber roughness are used. Fine creping by sticking when wet paper dryer is dried and adjusting per doctor.
  • the softness and smoothness of the paper is achieved by technologies such as forming the surface, improving the surface properties by a calender, and adjusting the raw material beating rate to a low level while maintaining the lateral strength by adjusting the ratio of the web speed. Improvements have been made.
  • non-moisturizing tissue has technical limitations and an increase in the number of people suffering from hay fever and allergic rhinitis has led to the development of moisturizing tissue that is now part of the tissue market.
  • Heavy users such as allergic rhinitis and hay fever, bite their nose more than tens of times a day, and the nose and its surroundings are rubbed against tissue, causing mild inflammation and redness. Therefore, for such a user, a material having a small friction on the tissue surface, that is, a material having smoothness is preferably used.
  • the moisturizing tissue applies an aqueous lotion solution containing a hygroscopic moisturizing agent such as glycerin to the base paper of the sanitary thin paper.
  • a hygroscopic moisturizing agent such as glycerin
  • Glycerin is less irritating to the skin as used in cosmetics, absorbs moisture and moistens and softens the tissue, forms a thin film on the surface of the tissue, and is clearly softer than ordinary non-applied tissue It is recognized as a differentiated product with a smooth touch.
  • Patent Document 1 a technique for externally applying an oily substance and a humectant has been introduced.
  • JP-A-4-9121 JP 2007-143664 A Japanese Patent No. 40673320
  • the first problem of the present invention is to provide a tissue paper that has a smoothness and a moist feeling equivalent to or higher than that of a conventional moisturizing tissue paper, and has reduced stickiness and tearability during use.
  • the second problem of the present invention is that when storing the tissue paper, the storage box configured to be easy to take out, to maintain the ease of pop-up, and to be difficult to tear when taking out, is used. To provide tissue paper products.
  • the present invention that has solved the above problems is as follows.
  • ⁇ Invention of Claim 1> A two-ply tissue paper with a chemical applied on its surface, The drug content is 1.5 to 5.0 g / m 2 on both sides, The basis weight per layer of the sheet constituting the 2-ply is 10 to 25 g / m 2 , 2-ply paper thickness is 100-140 ⁇ m, The web bulk during storage is 0.28 to 0.40 mm per set. Tissue paper characterized by that.
  • tissue paper according to claim 1 wherein the chemical solution has a water content of 1 to 15%.
  • tissue paper according to claim 1 wherein the dry tensile strength in the CD direction of the two plies is 80 to 120 cN / 25 mm.
  • a tissue paper product in which a two-ply tissue paper coated with a chemical on its surface is folded in a pop-up manner and stored in a substantially rectangular storage box The storage box is made of a paper box having an opening on the upper surface parallel to the long side direction and having a length of 50 to 70% of the length of the web to be stored.
  • the opening is covered with a film affixed to the inner surface of the storage box, and the film has a slit parallel to the long side direction in the opening, The slit is 45 to 65% of the longitudinal length of the web to be stored,
  • tissue paper product according to claim 5 wherein the film has a thickness of 33 to 38 ⁇ m and a longitudinal bending resistance of 0.8 to 1.4 gf / 10 mm.
  • tissue paper product according to claim 5 wherein the tissue paper take-out resistance is 70 gf or less.
  • tissue paper product according to claim 5 wherein the distance between the upper surface of the web stored in the storage box and the inner surface of the film is 0 to 5.0 mm.
  • tissue paper product according to claim 9 wherein in the inner dimension of the storage box, the length of the long side of the upper surface is 5 to 20 mm longer than the length in the longitudinal direction of the stored web.
  • the crepe structure of the sheet is extended, and the tissue paper having a smooth surface is formed. Further, since the paper thickness is reduced and the fiber density is increased by the elongation, the strength between fibers is increased, and a tissue paper having a high tensile strength in the CD direction can be obtained. Whereas conventional moisturizing tissue applies a lotion solution to a thick base paper to create a film on the surface of the tissue to give the user smoothness, the present invention suppresses the thickness and the amount of solution applied, and provides a crepe structure.
  • the surface is made smooth by stretching, thereby providing a smoothness higher than that of a conventional moisturizing tissue.
  • the sticky feeling is reduced as a minimum amount of the lotion solution film on the tissue surface to make it feel smooth. Therefore, the drug content in the dry state is lower than that of conventional lotion type tissue paper, and it contains a sufficient amount of drug to exert its effect even though it does not easily cause stickiness when used. Therefore, it has enough moist and moisturizing properties.
  • the paper thickness is thin, it has a soft feeling in use as compared with the drug content.
  • Acceleration of production can be achieved by using a multi-stand type interfolder.
  • the manufactured tissue paper product has a form in which the consumer pulls out the tissue paper in the CD direction.
  • the conventional moisturizing tissue does not have high paper strength, particularly the tensile strength in the CD direction, as compared to the non-humidifying tissue, so that a product manufactured by a multi-stand type interfolder is easily broken when pulled out. A problem is assumed.
  • the tissue paper has a strong tensile strength in the CD direction and a small coefficient of static friction, and is flexible as a tissue paper storage box on the film around the outlet. Is used, and the size of the outlet is specified. Thereby, even if the tissue paper is pulled in the CD direction and taken out, it is difficult to break, and the uppermost layer is difficult to fall into the box from the take-out port.
  • a multi-stand type interfolder for moisture-retaining tissue paper a continuous sheet containing moisture is processed while applying a relatively high tensile force in the MD direction and applying pressure in the thickness direction.
  • the web bulk can be kept lower than when using a folder. By this effect, it can be stored in a compact storage box frequently used for non-humidifying tissue paper products.
  • the present invention provides a tissue paper having a moist and smooth texture equal to or higher than that of a conventional moisturizing tissue, having less stickiness than the conventional moisturizing tissue, and having a high tensile strength in the CD direction. Is.
  • tissue paper can be pulled out from the storage box in the CD direction, a chemical-coated tissue paper product that can be manufactured at high speed using a multi-stand type interfolder is provided.
  • mold storage box are provided.
  • tissue paper It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a figure which shows a mode that the (a) tissue paper bundle
  • the base paper of the tissue paper according to the present invention has a ply structure in which two thin papers (hereinafter also referred to as sheets) are laminated.
  • the raw pulp of the thin paper (sheet) constituting the tissue paper according to the present invention for example, mechanical pulp such as ground wood pulp (GP), pressure-rise ground wood pulp (PGW), thermomechanical pulp (TMP), etc.
  • Chemical pulps such as semi-chemical pulp (SCP), softwood high yield unbleached kraft pulp (HNKP), softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp (LUKP), hardwood bleached kraft pulp (LBKP), etc .
  • deink Examples include waste paper pulp such as depulp (DIP) and waste pulp (WP).
  • the raw material pulp can be used by selecting one kind or two or more kinds.
  • a chemical pulp containing no filler or foreign matter is preferred.
  • the raw material pulp may contain woody materials such as straw pulp, bamboo pulp, kenaf pulp, and herbs.
  • the raw material pulp is preferably a blend of NBKP and LBKP.
  • Waste paper pulp may be blended as appropriate, but it is preferably composed of only NBKP and LBKP in terms of texture and the like.
  • NBKP: LBKP 30: 70 to 60:40 is desirable.
  • other fiber raw materials include polyester fibers such as polyethylene terephthalate, polybutylene terephthalate, and copolymers thereof, polyolefin fibers such as polyethylene, polypropylene, and polystyrene, acrylics such as polyacrylonitrile, modacrylic, and the like.
  • Fiber polyamide fiber such as nylon 6, nylon 66, nylon 12, etc.
  • synthetic fiber such as polyvinyl alcohol fiber, polyvinylidene chloride fiber, polyvinyl chloride fiber, urethane fiber, semi-synthetic fiber such as triacetate fiber, diacetate fiber
  • chemical fibers such as regenerated fiber spun from regenerated cellulose fiber such as coarse rayon, copper ammonia rayon, polynosic rayon, lyocell, collagen, alginic acid, chitin, etc. Rukoto can.
  • the polymer constituting the chemical fiber may be in the form of a homopolymer, a modified polymer, a blend, a copolymer or the like.
  • the raw material such as pulp fiber is used as a base paper through, for example, a known paper making process, specifically, a wire part, a press part, a dryer part, a calendar part, and the like.
  • a dry paper strength enhancer for example, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, a coating agent, a viscosity agent (knurl), a pH adjuster such as caustic soda, an antifoaming agent, a dye, etc. Chemicals can be added.
  • the rice paper weight per sheet of the tissue paper according to the present invention is preferably 10 to 25 g / m 2 , more preferably 11 to 16 g / m 2 . If the rice tsubo is less than 10 g / m 2 , it is preferable from the viewpoint of improving softness, but it is difficult to ensure adequate strength that can withstand use. On the other hand, when the rice tsubo exceeds 25 g / m 2 , the entire paper becomes hard, and a feeling of stickiness is generated, resulting in poor touch.
  • the US tsubo is based on the US tsubo measurement method of JIS P 8124 (1998).
  • the crepe rate of the primary sheet constituting the tissue paper of the present invention is 10-30%, more preferably 13-20%.
  • the crepe rate is expressed by the following equation. Crepe rate: ⁇ (peripheral speed of the dryer during papermaking) ⁇ (peripheral speed of the reel) ⁇ / (peripheral speed of the dryer during papermaking) ⁇ 100.
  • the tissue paper of the present invention contains 1.5 to 5.0 g / m 2 , more preferably 3.0 to 5.0 g / m 2 of the drug on both sides. If the drug content is less than 1.5 g / m 2 , the effect of the drug is not exhibited, and if it exceeds 5.0 g / m 2 , the tissue paper has a sticky feeling, and the dry tensile strength decreases.
  • the viscosity of the chemical solution to be applied is preferably 1 to 700 mPa ⁇ s, particularly 50 to 400 mPa ⁇ s at 40 ° C. from the viewpoint of high speed processing. If it is less than 1 mPa ⁇ s, the chemical solution is likely to scatter on rolls such as anilox roll, printing plate roll, and gravure roll, and conversely if it is greater than 700 mPa ⁇ s, it is difficult to control the amount of application to each roll or continuous sheet.
  • the components are 70 to 90% polyol, 1 to 15% moisture, and 0.01 to 22% functional chemicals.
  • the water content of the chemical solution to be applied was determined by the Karl Fischer method.
  • Polyol includes polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
  • polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof
  • sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
  • Functional agents include softeners, surfactants, inorganic and organic fine particle powders, oily components, and the like.
  • Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied.
  • Inorganic and organic fine particle powders have a smooth surface.
  • the oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.
  • a functional agent one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc.
  • a moisturizing agent such as any combination can be added.
  • Deodorants such as flavors, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc.
  • An agent can be appropriately blended. Furthermore, you may contain the antioxidant of vitamin C and vitamin E.
  • a polyhydric alcohol such as glycerin or propylene glycol
  • the temperature at the time of applying the chemical solution is preferably 30 ° C. to 60 ° C., preferably 35 ° C. to 55 ° C.
  • the coating amount was calculated from the difference between each sheet basis weight when the chemical solution after ply was not applied during operation and each sheet basis weight immediately after the corresponding application.
  • (Coating amount g / m 2 ) (Rice weight immediately after application g / m 2 ) ⁇ (Rice weight without application g / m 2 )
  • the coating amount of both surface layers or the total coating amount of both surfaces is the total coating amount per unit area of the plyed tissue paper sheet, and the coating amount of each sheet is added.
  • the drug application amount indicates the content of the drug component in a dry state (absolutely dry) included in the unit area of tissue paper in the standard state of JIS P 8111 (1998). Specifically, in the applied chemical solution The content of components other than moisture shall be indicated.
  • the unit area of the tissue paper is an area of the plyed sheet viewed from a viewpoint perpendicular to the plane, and does not mean the total area of each plyed sheet and its front and back surfaces.
  • the chemical content is defined as a tissue paper product having a predetermined mass conditioned under JIS P 8111 (1998) as a denominator (A) (g), and the water content in the chemical solution contained in the tissue paper product having a predetermined mass.
  • the ratio of (B) divided by (A) is expressed as (%), with the removed mass (B) (g) as a molecule.
  • (Drug content%) (B) ⁇ (A) ⁇ 100 (%)
  • the chemical solution density is the drug content per volume of two-ply tissue paper in the standard state of JIS P 8111 (1998).
  • the paper thickness of the tissue paper according to the present invention is 100 to 140 ⁇ m, more preferably 120 to 140 ⁇ m in a 2-ply state. If the paper thickness is less than 100 ⁇ m, it is preferable from the viewpoint of improving the softness, but it is difficult to ensure adequate strength as tissue paper. On the other hand, when the thickness exceeds 140 ⁇ m, the texture of the tissue paper is deteriorated and a feeling of tingling is generated during use.
  • the specimen is fully conditioned under the conditions of JIS P 8111 (1998), and then the dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) It shall be measured in the state of 2 plies using. Specifically, confirm that there is no dust, dust, etc. between the plunger and the measuring table, lower the plunger on the measuring table, move the dial thickness gauge memory to adjust the zero point, then Raise the plunger, place the sample on the test bench, slowly lower the plunger and read the gauge at that time. At this time, only the plunger is placed.
  • the dial thickness gauge thickness measuring instrument
  • the terminal of the plunger is made of metal so that a circular plane having a diameter of 10 mm is perpendicular to the plane of the paper, and the load at the time of measuring the paper thickness is about 70 gf.
  • the paper thickness is an average value obtained by performing measurement 10 times.
  • the tensile strength of the tissue paper according to the present invention is measured in a two-ply state.
  • the dry tensile strength is measured according to the tensile test method of JIS P 8113 (1998). Among them, it is cut into a width of 25 mm in the vertical direction and the horizontal direction under the standard conditions defined in JIS P 8111 (1998).
  • the dry tensile strength of the tissue paper according to the present invention is 180 to 350 cN / 25 mm in the MD direction, more preferably 160 to 300 cN / 25 mm, 80 to 120 cN / 25 mm in the CD direction, and more preferably 80 to 110 cN / 25 mm.
  • the ratio of the direction / CD direction is preferably 1.5 to 3.0.
  • the wet tensile strength is determined according to JIS P 8135 (1998).
  • the wet tensile strength of the tissue paper is 70 to 160 cN / 25 mm in the MD direction, more preferably 80 to 130 cN / 25 mm, and 33 to 50 cN / 25 mm, more preferably 35 to 45 cN / 25 mm in the CD direction.
  • the softness value of the tissue paper of the present invention is preferably 0.80 to 1.10 cN / 100 mm.
  • the softness here is measured based on the handle ohm method according to the JIS L 1096 E method. However, the test piece was 100 mm ⁇ 100 mm in size, and the clearance was 5 mm. The measurement was performed 5 times each in the longitudinal direction and the lateral direction with 1 ply, and the average value of all 10 times was represented by 2 digits of decimal point and expressed in units of cN / 100 mm.
  • the moisture content of the product is desirably 10.0 to 13.0%.
  • the moisture content is determined based on JIS P 8127.
  • Moisture content (%) ⁇ (weight of paper before drying) ⁇ (weight of paper after drying) ⁇ / (weight of paper before drying) ⁇ 100
  • the elongation in the MD direction of the product is preferably 11.0 to 15.0%.
  • the elongation rate here is measured using “Universal Tensile Compression Tester TG-200N” manufactured by Minebea Co., Ltd.
  • the elongation is the “stretch at break” described in “3. Definition e)” of JIS P8113.
  • the tissue paper of the present invention desirably has a coefficient of static friction between the tissue papers of 0.50 to 0.65, more preferably 0.55 to 0.60.
  • the static friction coefficient here is measured by the following method according to JIS P 8147 (1998).
  • the tissue paper peeled off in one ply is attached to the acrylic plate so that the outer surface of the tissue paper is on the outside. Wrap tissue paper around a 100 g weight with 2 plies and place it on the tissue on the acrylic plate. Tilt the acrylic plate and measure the angle at which the weight slides down.
  • Angle measurement is carried out 10 times in total, 5 times for each of the tissue in the vertical and vertical directions (MD and MD directions), and in the horizontal and horizontal directions (CD and CD directions), and the average angle is calculated.
  • the tangent value is defined as a coefficient of static friction.
  • the following can be considered as a principle for reducing the static friction coefficient.
  • two primary raw fabric continuous sheets are plyed, the crepe peak is smoothed by calendering, the sheet surface is smoothed by smoothing the crepe peak, and then the lotion chemical solution Is preferably applied by a transfer method.
  • the applied secondary raw sheet is stored under a certain tension and seasoned until it is folded. During this time, the lotion chemical solution spreads over time so as to be uniform inside the paper layer in a planar and thickness direction.
  • the secondary continuous sheet is pulled out from the ply raw fabric, folded, and cut through a process of pressing with a pull conveyor while pulling.
  • folding processing is started in a state in which it is coated and seasoned and moisture is absorbed in the paper layer. Due to seasoning and subsequent tension and pressure in the thickness direction, unevenness due to creping on the sheet surface is reduced, and friction between sheets is reduced.
  • MMD is an average deviation (unit: dimensionless) of the friction coefficient ⁇ .
  • MMD is one of the indices of smoothness. The smaller the numerical value, the smoother, and the larger the numerical value, the less smooth.
  • a tension of 20 g / cm is applied to the contact surface of the friction element 112 in a predetermined direction (downward and rightward in FIG. 11A). While being brought into contact with the surface of the tissue paper 111, which is the measurement sample, at a contact pressure of 25 g, it is moved 2 cm at a speed of 0.1 cm / s in the same direction as the direction in which the tension is applied.
  • the friction coefficient at this time was measured using a friction feeling tester KES-SE (manufactured by Kato Tech Co., Ltd.), and the average deviation of the friction coefficient ⁇ at a friction distance of 2 cm (moving distance was 3 cm, excluding 5 mm before and after each).
  • the friction element 112 has 20 piano wires P with a diameter of 0.5 mm adjacent to each other, and has a contact surface formed so that the length and width are both 10 mm.
  • the contact surface is formed with a unit bulging portion whose tip is formed of 20 piano wires P (curvature radius 0.25 mm).
  • FIG. 11A schematically shows the friction element 112
  • FIG. 11B shows an enlarged view of a portion surrounded by an alternate long and short dash line in FIG. 11A.
  • [Web bulk] A plastic plate having a weight of 30 g and a size of 130 mm ⁇ 250 mm was placed on the tissue paper bundle, and the heights of the four corners were averaged to obtain the web bulk value.
  • the web volume of the tissue paper according to the present invention is 0.25 to 0.40 mm per set. In particular, 0.28 to 0.36 mm per pair is preferable, and 55 to 65 mm is preferable for 180 pairs. If the web bulk is too low, it becomes difficult for the user to put the finger deeply out of the take-out opening when taking out the uppermost tissue from the storage box, making it difficult to take out.
  • the web If the web is too bulky, it cannot be stored in a compact storage box (box height of about 55 to 65 mm), and manufacturing costs and transportation costs increase, or the web is compressed during storage and is compact. In order to store in the storage box, the top layer must be pulled out with a strong force when taking out, and there is a problem that the tissue paper is easily torn.
  • the tissue paper according to the present invention is folded by an interfolder or the like, and is cut into a product size at any stage before or after the folding process. For example, 180 sets are packed into a product.
  • the paper density after 180 sets of folding is preferably 0.15 to 0.25 g / cm 3 , more preferably 0.17 to 0.23 g / m 3 . If it is lower than 0.15 g / cm 3 , moist feeling and smoothness cannot be obtained, and if it is higher than 0.25 g / cm 3 , the thickness of the tissue paper is impaired and a sticky feeling is produced, and the water absorption is deteriorated. End up.
  • the product density is the paper thickness (D) of tissue paper (2 ply) according to “PEACOCK G type”, which is a double value (C) of the tissue paper product tsubo conditioned under JIS P 8111 conditions.
  • FIG. 12 shows a tissue paper product according to the present invention
  • FIG. 13 shows a view of the storage box 201 as seen from the inside of the box in the unfolded state.
  • any known material used as a tissue paper storage box such as cardboard having a basis weight of 300 to 450 g / m 2 can be used.
  • the tissue paper storage box 201 has a rectangular parallelepiped shape in an assembled state as shown in FIG. 12, and includes a pair of upper and lower upper surfaces 202 and 203, a pair of front and rear front surfaces 204 and 205, and a pair of left and right left sides. A surface 204 and a right side 205. In this case, the front and rear surfaces 204 and 205 and the left and right side surfaces 206 and 207 correspond to the peripheral surface of the present invention.
  • the adhesive margin piece 203b extends from the rear edge of the lower surface (the edge adjacent to the rear surface of the peripheral edge) over the entire long side, and the adhesive margin piece 203b overlaps the inner side of the rear surface. Then, a cylindrical portion composed of the upper surface 202, the lower surface 203, the front surface 204, and the rear surface 205 is formed by being bonded and fixed by an adhesive such as a hot melt adhesive.
  • the left and right side surfaces 204 and 205 extend from an adjacent edge of the upper surface 202 and an adjacent edge of the lower surface 203, respectively, and from an adjacent edge of the front surface 204 and an adjacent edge of the rear surface 205, respectively.
  • the front flap 204f and the rear flap 205f, the upper flap 202f and the lower flap 203f are overlapped on the outside of the front flap 204f and the rear flap 205f, and the upper flap 202f and the lower flap 203f are the front flap and the rear flap 205f.
  • the lower end portion of the upper flap 202f is overlapped on the outer side of the upper end portion of the lower flap 203f, and the overlapped portion is fixed by the adhesive.
  • the inner dimension of the box is preferably 5 to 20 mm, particularly 8 to 15 mm longer than the length in the longitudinal direction of the web to be stored.
  • the height of the storage box can be arbitrarily determined within the scope of the present invention in accordance with the number of web sets to be stored. However, considering the economy and convenience of use, the number of web sets is set to 150 to 300 sets.
  • the height of the storage box is preferably 50 to 120 mm.
  • the height of the storage box is preferably 50 to 80 mm, more preferably 55 to 65 mm, in order to reduce manufacturing costs and transportation costs.
  • a cutout such as a perforation is formed in advance on the upper surface 202 of the storage box 201, and an extraction window (opening) 202a is formed by peeling off the lid portion 202b surrounded by the cutout at the start of use. It has become.
  • the lid portion 202 b may be configured so as to be a valley fold line 202 g without being cut off at substantially one side. By setting it as such a structure, the cover part 2b can be utilized as a cover of the extraction window 202a.
  • the take-out window 202a may be opened in advance and the lid portion 202b may not be provided.
  • the length in the long side direction of the take-out window 202a is 50 to 70%, particularly 55 to 65% of the length in the longitudinal direction of the web to be stored.
  • the length in the short side direction of the take-out window 202a is preferably 35 to 55%, particularly 40 to 50% of the length in the short side direction of the web.
  • a film-like cover sheet 202c is attached to the take-out window 202a from the inside of the box with a hot-melt adhesive or the like, and a portion of the cover sheet 202c surrounded by the take-out window 202a has a long side direction of the box 1
  • a slit 202s is formed.
  • the slit 202s is 45 to 65%, particularly 50 to 60%, of the length in the longitudinal direction of the web to be stored.
  • the slit 202s is particularly preferably arranged in the vicinity of the center of the extraction window 202a in both the long side direction and the short side direction.
  • examples include synthetic paper sheets made of fibers.
  • a resin film sheet is preferable in consideration of the take-out property, and a low-density polyethylene film (LDPE) that is particularly flexible and low in production cost can be suitably used.
  • LDPE low-density polyethylene film
  • the film thickness is preferably 33-38 ⁇ m. Further, it is preferable that the longitudinal bending resistance of the film is 0.8 to 1.4 gf / 10 mm, particularly 1.0 to 1.2 gf / 10 mm. The bending resistance was measured based on the handle ohmmeter method described in JIS L 1096 E method. The test piece was 100 mm long ⁇ 10 mm wide, and the clearance was 5 mm. The average value of 10 times in 1 ply in the vertical direction was represented by 2 digits of decimal point and expressed in units of cN / 100 mm. The longitudinal direction of the film coincides with the slit direction of the film.
  • the bending resistance of the film in the longitudinal direction is higher than 1.4 gf / 10 mm, it will be easy to tear when taking out the tissue paper, and if it is lower than 0.8 gf / 10 mm, it will be difficult to hold the tissue paper in the outlet and pop-up will occur. It becomes difficult.
  • the coefficient of static friction between the lateral direction of the film and the tissue paper is 0.20 to 0.30, and more preferably 0.23 to 0 in order to improve the slip of the tissue paper at the time of taking out and suppress the resistance. .28.
  • the film transverse direction means a direction perpendicular to the film longitudinal direction and the film plane.
  • the coefficient of static friction between film and tissue paper was measured by the following method. The film is affixed to the acrylic plate so that the slope direction is the lateral direction of the film so that the inner surface of the storage box is on the outside. Wrap tissue paper around a 100 g weight with 2 plies, and place it on the film on the acrylic plate so that the slope direction is the tissue removal direction. Tilt the acrylic plate and measure the angle at which the weight slides down. The angle measurement was performed 10 times, the average angle was calculated, and the tangent value was taken as the static friction coefficient.
  • tissue paper removal resistance By setting the resistance applied when taking out the tissue paper within a certain range, it is possible to minimize tearing during the taking out.
  • the tissue paper take-out resistance is measured by the following method. Secure the center tip of tissue paper to the gauge tip of the pushbull gauge, and take the tissue paper vertically from the storage box with the bottom surface fixed at a constant speed over a period of 0.4 to 0.6 seconds. The resistance value was measured.
  • the tissue paper to be taken out is a total of 5 sets from the first set to the 5th set from the top layer, and a total of 5 sets from the 11th set to the 15th set. It was.
  • the take-out resistance is preferably 70 gf or less, more preferably 50 to 70 gf.
  • tissue paper of the present invention described above can be manufactured as follows.
  • FIG. 1 the outline
  • the ply machine which is an apparatus integrated with the coating device (on-machine coating).
  • the base paper produced by the paper machine is creped as a continuous sheet, calendered, and wound up to form primary rolls 11 and 12 (generally also called jumbo rolls).
  • the continuous sheets 31 and 32 are laminated by the laminating roller 13 to form two plies, and are subjected to a calendar process by a ply machine calendar 14 as necessary, and are sent to a chemical solution coating process.
  • Any known coating method such as dipping, spraying, flexo coating, and gravure coating can be used as the chemical coating method, but printing methods such as gravure coating and flexographic coating that perform chemical coating evenly on the entire coated surface
  • two flexo coaters 16 and 17 are provided, and a chemical solution is applied to each side of a two-ply continuous sheet.
  • the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, particularly preferably 450 to 1000 m / min. If it is less than 100 m / min, the productivity is low, and if it is more than 1100 m / min, uneven coating occurs and the chemical solution is likely to scatter.
  • the number of flexographic printing plate rolls is 10 to 60, preferably 15 to 40, and more preferably 20 to 35. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 60 lines, the paper dust tends to clog.
  • the number of anilox rolls is 10 to 300, preferably 25 to 200, and more preferably 50 to 100. If the number of lines is less than 10, many coating irregularities occur. On the other hand, if the number of lines exceeds 300 lines, the paper dust tends to be clogged.
  • the anilox roll has a cell capacity of 10 to 100 cc, preferably 15 to 70 cc, particularly preferably 30 to 60 cc. If the cell capacity is less than 10 cc, a desired coating amount cannot be obtained. On the other hand, if the cell capacity is more than 100 cc, the amount of chemical solution scattered increases. By setting it as such a structure, a chemical
  • the flexographic printing method can stabilize the coating amount even when the processing speed is high, and can stably apply a wide range of chemical viscosity with a single roll.
  • the processing speed is 100 to 1000 m / min, preferably 350 to 950 m / min, and particularly preferably 450 to 950 m / min.
  • productivity is low, and when it is more than 1000 m / min, coating unevenness occurs and the chemical solution is likely to be scattered.
  • the number of gravure rolls is 40 to 160 lines, preferably 60 to 140 lines, particularly preferably 80 to 120 lines. If the number of lines is less than 40 lines, the amount of chemical solution scattered increases, whereas if the number of lines exceeds 160 lines, paper dust tends to be clogged.
  • the spraying means is not particularly limited, but may be a nozzle dampening method or a rotor dampening spraying method.
  • the processing speed is 100 to 1100 m / min, preferably 350 to 1050 m / min, and more preferably 450 to 1000 m / min.
  • the sheet after applying the chemical solution is supplied to the contact embossing roller 18 and the roller roll 19 and fixed by subjecting the two-ply continuous sheet to a contact embossing (knurling) process.
  • the continuous sheet 32 with a small amount of chemical solution applied is disposed so as to contact the contact embossing roller 18.
  • the contact embossing is preferably uniformly applied in the longitudinal direction with a width of 1 to 10 mm at a position of 1/10 to 1/20 with respect to the paper width from both sides. Any of the known methods such as fixing the ply with an adhesive may be used. However, when using an adhesive, there is a problem that the touch tends to become hard, and it is easy to peel off when applying a chemical solution. It can be said that the use of embossing is more preferable.
  • 2 ply continuous sheet with contact embossing is cut directly into product size after being subjected to folding processing by being directly applied to a rotary interfolder or the like, or after being cut into product width by slitter 20,
  • the winding roll 21 makes a take-up secondary raw roll 22 which is folded and stored in a paper box.
  • the chemical solution is applied before the contact embossing.
  • the chemical solution may be applied after the contact embossing.
  • Chemical liquid application may be performed either on-machine or off-machine. Further, the chemical solution applying means may be provided before the winding process of the primary continuous sheet of the paper machine (if the calendar process is performed, it may be before or after the calendar process) or before the interfolder is folded. Furthermore, the chemical solution application means is not limited to a single one, and may be configured to apply the chemical solution in a plurality of steps.
  • Multi-stand type inter folder The secondary raw roll described above is subjected to a folding process particularly in tissue paper products.
  • a known method such as a rotary interfolder or a multi-stand interfolder can be used, but it is more preferable to use a multi-stand interfolder with high productivity.
  • it is necessary to use a multi-stand type interfolder because the static friction coefficient of tissue paper needs to be low and the web bulk needs to be low.
  • a large number of secondary web rolls 22 are set in a multi-stand type interfolder, and a secondary continuous sheet is drawn out from the set secondary web roll 22 to be folded and laminated to produce a tissue paper bundle.
  • a multi-stand type interfolder will be described.
  • Reference numeral 2 in the drawing denotes secondary raw rolls 22, 22... Set on secondary raw roll support portions (not shown) of the multi-stand type interfolder 1.
  • These secondary raw rolls 22, 22... are set side by side in the direction (the horizontal direction in FIG. 2, the front-to-back direction in FIG. 3) in which the required number is orthogonal to the illustrated plane.
  • Each secondary raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.
  • the continuous belt-like secondary continuous sheets 63A and 63B unwound from the secondary web roll 22 are guided by guide means such as guide rollers G1 and G1 and fed into the folding mechanism section 60.
  • the folding mechanism part 60 is provided with the folding plate group 64 in which the required number of folding plates P, P ... are arranged in parallel as shown in FIG.
  • guide rollers G2, G2 and guide round bar members G3, G3 for guiding a pair of continuous secondary continuous sheets 63A or 63B are respectively provided at appropriate positions.
  • a conveyor 65 is provided that receives and conveys the laminated band 67 that is stacked while being folded.
  • a folding mechanism using this type of folded plates P, P... is a mechanism known from, for example, US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 63A, 63B... In the Z-shape and is adjacent to the adjacent secondary continuous sheets 63A, 63B. Stack the ends together.
  • FIGS. 6 to 9 show in detail the portions of the folding mechanism 60, particularly the folded plate P.
  • FIG. In the folding mechanism 60, a pair of continuous secondary continuous sheets 63A and 63B are guided for each folded plate P. At this time, the continuous secondary continuous sheets 63A and 63B are guided by the guide round bar members G3 and G3 while being shifted in position so that the side end portions do not overlap each other.
  • the continuous secondary continuous sheet that overlaps the lower side when guided by the folded plate P is the first continuous secondary continuous sheet 63A
  • the continuous secondary continuous sheet that overlaps the upper side is the second continuous sheet.
  • these continuous secondary sheets 63A and 63B are second continuous secondary continuous sheets of the first continuous secondary continuous sheet 63A.
  • the side end e1 that does not overlap the sheet 63B is folded back to the upper side of the second continuous secondary continuous sheet 63B by the side plate P1 of the folded plate P, and as shown in FIG. 5 and FIG.
  • the side end e2 of the continuous secondary continuous sheet 63B that does not overlap with the first continuous secondary continuous sheet 63A is folded downward so as to be drawn under the folded plate P from the slit P2 of the folded plate P. .
  • the side end e3 (e1) of the continuous secondary continuous sheet 63A stacked while being folded in the upstream folded plate P is second from the slit P2 of the folded plate P.
  • the side ends of adjacent continuous secondary continuous sheets 63A and 63B are crossed together, so that the product is used.
  • the side edge of the next tissue paper is pulled out.
  • the laminated band 70 obtained in the multi-stand type interfolder 6 as described above is cut (cut) at a predetermined interval in the flow direction FL by the cutting means 66 at the subsequent stage, and the tissue is cut.
  • This tissue paper bundle 30a is further stored in the storage box B in the subsequent equipment as shown in FIG. 10 (a).
  • the paper direction of the laminated band 70 is the vertical direction (MD direction) along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction.
  • Direction (CD direction) is the vertical direction along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction.
  • the direction of the paper of the tissue paper constituting the tissue paper bundle 67a obtained by cutting the laminated band 70 into a predetermined length is along the folding direction of the tissue paper, as shown in FIG.
  • the horizontal direction (CD direction) and the vertical direction (MD direction) along the direction orthogonal to the folding direction of the tissue paper.
  • FIG. 10 (b) shows an example of a product in which the tissue paper bundle 67a is stored in the storage box B.
  • a perforation M is provided on the upper surface of the storage box B, and a part of the upper surface of the storage box B is broken by the perforation M so that the upper surface of the storage box B is opened.
  • the opening is covered with a film F having a slit at the center, and the tissue paper T can be taken out through the slit provided in the film F.
  • the direction of the paper of the tissue paper constituting the tissue paper bundle 67a is the horizontal direction (CD direction) along the folding direction of the tissue paper, as shown in FIG.
  • the pulling direction is along the horizontal direction (CD direction) of the tissue paper T.
  • Table 1 shows the results of evaluating the dimensions of the product and the paper quality of the tissue paper for the examples and comparative examples according to the present invention.
  • Examples 1 to 7 are tissue papers according to the present invention manufactured using a multi-stand type interfolder for folding.
  • Comparative Examples 1 to 4 are commercially available products, Comparative Example 1 is a non-humidifying general purpose tissue paper, and Comparative Examples 2 to 4 are moisturizing lotion type tissue papers.
  • composition of the chemical solution applied to Examples 1 to 7 was adjusted as shown in Table 2.
  • the method for measuring tissue weight, paper thickness, tensile strength, elongation, softness, coefficient of static friction, moisture content, MMD, and tissue resistance of tissue paper is described in the section of the embodiment for carrying out the invention. Just as you did.
  • the drug content indicates the ratio of the dry weight of the drug to the tissue paper basis weight.
  • Table 1 shows the inner dimensions of the storage boxes for the tissue paper products of Examples 1 to 7 and Comparative Examples 1 to 4, the dimensions of the take-out window, the length of the slits, the material, thickness, and Clark stiffness of the film.
  • ⁇ 1 to 4 people broke or complained of difficulty in taking out due to resistance. ⁇ : 5 to 10 people complained of tears. Regarding the presence or absence of the tissue paper in the storage box, for 10 people, all tissue paper products were taken out from the first set to determine whether or not there was any depression. ⁇ : There was no depression. ⁇ : 1 to 4 people experienced a drop more than once. ⁇ : 5 to 10 people experienced the depression more than once. The difficulty of tearing at the time of use was evaluated by using tissue paper as a nostril for 10 people and determining whether there was any tear. ⁇ : 3 or fewer people were torn or not torn. ⁇ : 4 to 8 people were torn. ⁇ : 9 to 10 people are torn.
  • the tissue paper according to the present invention showed high values of the dry tensile strength and the wet tensile strength in the CD direction as compared with a commercially available moisturizing tissue.
  • the wet tensile strength in the CD direction was higher than that of conventional general-purpose tissue paper. It was also shown that the softness and static friction coefficient were lower than those of commercial products, and the paper was smooth and soft.
  • the tissue paper according to the present invention is not excellent in thickness, but has a softness, smoothness, moist feeling equal to or higher than that of a moisturizing tissue, and a sticky feeling seen in a moisturizing tissue. I found out that it was alleviated.
  • the following can be considered as factors that have good slipperiness for the tissue paper according to the present invention.
  • the hydrophilic components are absorbed into the pulp and the lipophilic components tend to remain on the paper surface. It is considered that surface friction is reduced.
  • increasing the amount of chemical solution applied as in conventional moisturizing tissue the hydrophilic component is not sufficiently absorbed into the pulp and remains on the surface, reducing the friction reducing effect of the lipophilic component and the hydrophilic component (such as glycerin). It is presumed that the slipperiness decreases due to the viscosity of.
  • Examples 1 to 4 show that even when slipping is improved, tissue paper in use does not fall into the storage box from the slit portion, and the feeling of use is not impaired even during use. It was. In Comparative Examples 2 to 4, it was found that breakage during use was likely to occur, whereas in Examples 1 to 7, breakage was less likely to occur.
  • the tissue paper according to the present invention has a sticky feeling seen in conventional moisturizing tissue and has a softness, smoothness, and moist feeling equivalent to or higher than that of the moisturizing tissue. It turned out to be. Further, it was found that the tissue paper can be taken out smoothly and is not easily torn at the time of taking out.
  • tissue paper and tissue paper product of the present invention can be used for tissue paper and tissue paper products that are used for wiping, in particular for wiping the body, and for facial use.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Sanitary Thin Papers (AREA)
  • Paper (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

[Problème] La présente invention a pour objet d'obtenir un papier de soie qui ait un lissé et une sensation d'humidité égal ou supérieur à un papier de soie humide classique, et qui soit moins collant et ne se déchire pas aussi facilement lors de l'utilisation. L'invention concerne aussi un produit pour papier de soie qui ne se déchire pas facilement quand il est retiré. [Solution] En ce qui concerne un papier de soie à deux couches enduit d'une solution chimique, la solution chimique est appliquée de sorte que la quantité de solution chimique contenue dans les deux surfaces se trouve entre 1,5 et 5,5 g/m2, et le grammage par couche des feuilles constituant le papier à deux couches se trouve entre 10 et 25 g/m2 et l'épaisseur du papier à deux couches se trouve entre 100 et 140 μm. L'indice de bouffant de la bande de papier se trouve entre 0,28 et 0,40 mm par paire et la longueur de la section de fente de l'ouverture dans la boîte de rangement pour retirer le papier de soie représente entre 45 à 65 % de la longueur de la bande dans le sens longitudinal.
PCT/JP2010/064471 2010-07-20 2010-08-26 Papier de soie et produits pour papier de soie Ceased WO2012011199A1 (fr)

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JP5732502B2 (ja) * 2013-09-12 2015-06-10 大王製紙株式会社 家庭用薄葉紙収納箱
JP6188855B1 (ja) * 2016-03-31 2017-08-30 大王製紙株式会社 ティシュペーパー
JP6566923B2 (ja) * 2016-10-07 2019-08-28 大王製紙株式会社 ティシュペーパー
JP6633564B2 (ja) * 2017-03-31 2020-01-22 大王製紙株式会社 ティシュペーパー及びティシュペーパー製品の製造方法
JP6622770B2 (ja) * 2017-09-21 2019-12-18 大王製紙株式会社 ティシュペーパー製品及びティシュペーパー製品包装体
JP7133943B2 (ja) * 2018-02-28 2022-09-09 大王製紙株式会社 ティシュペーパー
JP7298445B2 (ja) * 2019-11-05 2023-06-27 王子ホールディングス株式会社 収納箱、収納体、および収納体を包装し梱包した梱包体

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JPH0467320B2 (fr) * 1982-03-12 1992-10-27 Tokyo Shibaura Electric Co
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