WO2011080940A1 - Papier absorbant et procédé de fabrication de papier absorbant - Google Patents

Papier absorbant et procédé de fabrication de papier absorbant Download PDF

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Publication number
WO2011080940A1
WO2011080940A1 PCT/JP2010/063020 JP2010063020W WO2011080940A1 WO 2011080940 A1 WO2011080940 A1 WO 2011080940A1 JP 2010063020 W JP2010063020 W JP 2010063020W WO 2011080940 A1 WO2011080940 A1 WO 2011080940A1
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Prior art keywords
tissue paper
paper
tissue
ply
sheet
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PCT/JP2010/063020
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English (en)
Japanese (ja)
Inventor
敦嗣 小沼
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大王製紙株式会社
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Priority to JP2010535163A priority Critical patent/JP5337164B2/ja
Publication of WO2011080940A1 publication Critical patent/WO2011080940A1/fr

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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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply

Definitions

  • the present invention relates to tissue paper and a method for manufacturing tissue paper.
  • 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 the paper base tissue
  • the non-humidifying tissue is a general tissue in which the moisturizing agent is not applied to the tissue base paper.
  • tissue paper is mainly for personal use, mainly for facial use
  • the moisturizing tissue is considered to be a product specification specialized for use in the nose.
  • 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. For example, various softeners are added to the raw materials to improve the flexibility of the product.
  • 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.
  • Moisturizing tissue is recognized as a differentiated product that has a hygroscopic moisturizing agent such as glycerin applied to a base paper of sanitary thin paper and has an apparently smoother texture than ordinary non-coated tissue.
  • a technique for externally applying an oily substance and a humectant has been introduced (Patent Document 1).
  • An object of the present invention is to provide a tissue paper that has softness and smoothness equal to or higher than those of conventional moisturizing tissue paper, and has reduced stickiness and tearability during use.
  • 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 chemical content is 1.4 to 4.5 g / m 2 on both sides, and the chemical amount contained in one of the two ply sheets is 0.67 to 1 of the chemical amount contained in the other sheet. .5 times, The basis weight per layer of the sheet constituting the 2-ply is 10 to 25 g / m 2 , 2-ply paper thickness is 80-140 ⁇ m, The softness is 0.9 to 1.5 cN / 100 mm. Tissue paper characterized by that.
  • tissue paper according to claim 1 wherein the chemical solution has a water content of 1 to 15% by weight.
  • tissue paper according to claim 1 having a moisture content of 7.0 to 9.0%.
  • tissue paper according to claim 1 wherein the surface has a coefficient of static friction of 0.60 to 0.68.
  • 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, and the wet tensile strength in the CD direction of the two plies is 33 to 50 cN / 25 mm.
  • a method for producing a two-ply tissue paper having a chemical applied to the surface The drug solution has a drug content of 1.4 to 4.5 g / m 2 on both sides, and the amount of drug contained in one of the sheets constituting two plies is 0.67 of the amount of drug contained in the other sheet. Apply up to 1.5 times, The basis weight per layer of the sheet constituting the two plies of the tissue paper is 10 to 25 g / m 2 , 2-ply paper thickness is 80-140 ⁇ m, The softness is 0.9 to 1.5 cN / 100 mm.
  • a method for producing tissue paper characterized by the above.
  • 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 elongation, tissue paper having a high tensile strength in the CD direction, particularly a high wet tensile strength can be obtained by the inter-fiber force.
  • tissue paper having a high tensile strength in the CD direction, particularly a high wet tensile strength can be obtained by the inter-fiber force.
  • the drug content in the dry state is lower than that of conventional lotion type tissue paper, a sticky feeling during use is unlikely to occur. Furthermore, since the paper thickness is thin, it has a soft feeling in use as compared with the drug content.
  • the present invention provides a tissue paper that has a soft and smooth texture equal to or higher than that of a conventional moisturizing tissue, is less sticky than the conventional moisturizing tissue, and has a high tensile strength in the CD direction. It is.
  • FIG. 1 It is a figure which shows the apparatus outline
  • 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).
  • tissue paper It is a figure which shows a mode that the tissue paper bundle is accommodated in the storage box.
  • tissue paper It is a partially broken figure which shows a mode that the tissue paper accommodated in the storage box is taken out. It is a figure which shows the measuring method of the MMD value of tissue paper.
  • the “drug content” in the present invention indicates the content of the drug component in a dry state (absolutely dry) contained in the unit area of tissue paper in the standard state of JIS P 8111.
  • the content of components other than water in the chemical solution is shown.
  • 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. : Semi-chemical pulp (SCP), softwood high yield unbleached kraft pulp (HNKP), softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp (HNKP), hardwood unbleached kraft pulp (LUKP), hardwood bleached kraft pulp ( Chemical pulp such as LBKP): used paper pulp such as deinking pulp (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.
  • Raw materials such as pulp fiber are used as a base paper through, for example, a known papermaking process, specifically, a wire part, a press part, a dryer part, a size press, a calendar part, and the like.
  • a suitable agent such as a dispersant, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, a coating agent, a pH adjuster such as caustic soda, an antifoaming agent, and a dye. can do.
  • 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 13 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 1.4 to 4.5 g / m 2 , and more preferably 2.3 to 3.6 g / m 2 of both sides of the drug. If the drug content is less than 1.4 g / m 2 , the effect of the thin paper drug will not be exhibited, and if it exceeds 4.5 g / m 2 , the tissue paper will be sticky and the wet paper strength will be reduced. .
  • the amount of drug contained on both sides should be approximately the same, and the amount of drug contained in one layer of the sheet should be 0.67 to 1.5 times, more preferably 0.77 to 1.3 times that of the other layer. To.
  • the viscosity of the chemical solution to be applied is 1 to 700 mPa ⁇ s at 40 ° C. from the viewpoint of high speed processing. More preferably, it is 50 to 400 mPa ⁇ s (40 ° C.). 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 amount of water in the applied chemical solution is 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 amount of drug applied indicates the content of the drug component in a dry state (absolutely dry) contained in the unit area of tissue paper in the standard state of JIS P 8111. Specifically, other than the moisture in the applied chemical solution The content of the component 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 drug application rate is the mass excluding moisture in the chemical solution contained in the tissue paper product of the predetermined mass with the tissue paper product of the predetermined mass conditioned under JIS P 8111 as the denominator (A) (g).
  • (B) Using (g) as a molecule, the ratio obtained by dividing (B) by (A) is represented by (%).
  • (Drug content%) (B) ⁇ (A) ⁇ 100 (%)
  • the paper thickness of the tissue paper according to the present invention is 80 to 140 ⁇ m, more preferably 90 to 120 ⁇ m in a 2-ply state. If the paper thickness is less than 80 ⁇ 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 paper thickness As a measuring method of the paper thickness, it shall be measured using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Mfg. Co., Ltd.) under the conditions of JIS P8111 (1998). 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.
  • PEACOCK G type manufactured by Ozaki Mfg. Co., Ltd.
  • the terminal of the plunger is made of metal so that a plane with 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 0.9 to 1.5 cN / 100 mm, more preferably 0.9 to 1.4 cN / 100 mm.
  • the softness is measured based on the handle ohm method according to the JIS L1096 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 measured according to JIS P 8127 is 7.0 to 9.0%, more preferably 7.5 to 9.0%.
  • ⁇ Growth rate The elongation in the MD direction of the product is preferably 11.0 to 15.0%.
  • the “elongation rate” indicates “tensile elongation at break” defined in JIS P 8113 (2006). The elongation is measured using “Universal Tensile and Compression Tester TG-200N” manufactured by Minebea Co., Ltd.
  • the tissue paper of the present invention desirably has a static friction coefficient of 0.60 to 0.68, more preferably 0.61 to 0.65.
  • 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 performed 4 times so that the sheet is stuck in the MD direction in the slope direction, and the sheet wound around the weight slides in the MD direction, the sheet is stuck in the CD direction in the slope direction, and the sheet wound around the weight is in the CD direction 4 times so that it slides down, and a total of 8 times, the average angle is calculated, and the tangent value is taken as the coefficient of static friction.
  • 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 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 a one-dot chain line in FIG. 11A.
  • 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 0.20 to 0.30 g / cm 3 , more preferably 0.23 to 0.29 g / m 3 . If it is lower than 0.20 g / cm 3 , moist feeling and smoothness cannot be obtained, and if it is higher than 0.30 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 density of the product is the plyed tissue measured by “PEACOCK G type”, which is a value obtained by multiplying the rice paper weight per layer of the tissue paper product conditioned under JIS P 8111 conditions by the number of plies (C). It is a value divided by the paper thickness (D) of the paper, and the unit is expressed in g / cm 3 and 3 digits after the decimal point.
  • PEACOCK G type is a value obtained by multiplying the rice paper weight per layer of the tissue paper product conditioned under JIS P 8111 conditions by the number of plies (C). It is a value divided by the paper thickness (D) of the paper, and the unit is expressed in g / cm 3 and 3 digits after the decimal point.
  • tissue paper of the present invention described above can be manufactured as follows.
  • FIG. 1 the outline
  • 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, spray coating, flexo coating, and gravure coating can be used as the chemical coating method, but printing such as gravure coating and flexo coating that performs uniform chemical coating on the entire coated surface is possible.
  • Use of the method particularly the use of a flexo coater equipped with a doctor chamber 15, is more preferable because the chemical solution can be supplied in a stable coating amount.
  • two flexo coaters 16 and 17 are provided, and a chemical solution is applied to each surface of a two-ply continuous sheet.
  • the contact embossing roller 18 and the roller roll 19 Supplied to the contact embossing roller 18 and the roller roll 19 and fixed by subjecting the continuous sheet of 2 plies to contact embossing (knurling). At this time, 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.
  • the above-described secondary raw roll is used for the 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.
  • Multi-stand type inter folder A large number of secondary web rolls 22 are set in a multi-stand type interfolder, and a tissue paper bundle is manufactured by drawing out a secondary continuous sheet from the set secondary web roll 22 and folding and stacking them.
  • a tissue paper bundle is manufactured by drawing out a secondary continuous sheet from the set secondary web roll 22 and folding and stacking them.
  • 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 section 60 is provided with a folded plate group 64 in which a necessary number of folded 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 kind 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 pull-out direction is along the horizontal direction (CD direction) of the tissue paper T.
  • Comparative Example 1 is a non-humidifying general-purpose tissue paper
  • Comparative Examples 2 to 4 are moisturizing lotion-type tissue papers
  • Comparative Examples 5 and 6 are non-humidifying type rice papers
  • It is a high-quality tissue paper with high paper thickness.
  • the measuring methods of rice tsubo, paper thickness, tensile strength, elongation rate, softness, static friction coefficient, and moisture content are as described in the section of the embodiment for carrying out the invention.
  • the drug content indicates the ratio of the dry weight of the drug to the tissue paper basis weight.
  • Example 1 Along with the evaluation of paper quality, sensory evaluation based on the following criteria was conducted for 87 consumers in Example 1 and Comparative Examples 1, 2, 5, and 6 with respect to softness, smoothness, thickness, and moistness. .
  • a sensory evaluation was separately conducted on 12 persons (Table 2). The sensory evaluation was performed on the basis of the following criteria, with all results of Comparative Example 1 being a non-humidifying tissue paper set to 3. 5: Very good 4: Excellent 3: Equivalent to the standard 2: Inferior 1: Notably inferior Furthermore, regarding the chemical-coated tissue paper, the presence or absence of a sticky feeling was also evaluated. ⁇ : Little sticky feeling ⁇ : Clearly sticky feeling
  • 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. Further, the wet tensile strength in the CD direction was higher than that of the conventional general-purpose tissue paper. It was also shown that the softness and static friction coefficient were low compared to other products, and the paper was smooth and soft. In sensory evaluation, 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 hydrophilic components (such as glycerin). It is presumed that the slipperiness decreases due to the viscosity of. *
  • the tissue paper of the present invention can be used for tissue paper that is used for wiping, especially for wiping the body, and for facial use.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)

Abstract

La présente invention concerne un papier absorbant ayant une souplesse et une douceur supérieures ou égales à celles des papiers absorbants humidifiés conventionnels, tout en étant moins collant lors de l'utilisation et moins facile à déchirer. Une solution chimique est appliquée sur un papier absorbant à deux feuilles de sorte que la quantité de produits chimiques contenus dans les deux surfaces vaut de 1,4 à 4,5 g/m2 et de sorte que la quantité de produits chimiques contenus dans l'une des deux feuilles qui constituent le papier à deux feuilles vaut de 0,67 à 1,5 fois la quantité de produits chimiques contenus dans l'autre feuille. Le poids de base par couche des feuilles qui constituent le papier à deux feuilles vaut de 10 à 25 g/m2, l'épaisseur du papier à deux feuilles vaut de 80 à 140 μm, et la souplesse vaut de 0,9 à 1,5 cN/100 mm.
PCT/JP2010/063020 2009-12-28 2010-08-02 Papier absorbant et procédé de fabrication de papier absorbant WO2011080940A1 (fr)

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Cited By (2)

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EP2589324A1 (fr) * 2010-06-30 2013-05-08 Daio Paper Corporation Papier tissu et procédé de fabrication de papier tissu
CN107105947A (zh) * 2015-03-31 2017-08-29 大王制纸株式会社 薄页纸

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JP5985804B2 (ja) * 2011-09-05 2016-09-06 大王製紙株式会社 保湿ティシュペーパー製品及び保湿ティシュペーパーの製造方法
JP7133943B2 (ja) * 2018-02-28 2022-09-09 大王製紙株式会社 ティシュペーパー
JP7251021B2 (ja) * 2018-11-29 2023-04-04 日本製紙クレシア株式会社 ティッシュペーパー製品
JP7066600B2 (ja) * 2018-11-30 2022-05-13 大王製紙株式会社 ティシュペーパー

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JP4236660B2 (ja) * 2005-11-25 2009-03-11 大王製紙株式会社 衛生薄葉紙及びその製造方法
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JP5410026B2 (ja) * 2008-03-17 2014-02-05 大王製紙株式会社 衛生用薄葉紙
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JP2003325372A (ja) * 2002-05-14 2003-11-18 Crecia Corp 衛生用紙
JP2004218151A (ja) * 2003-01-16 2004-08-05 Daio Paper Corp 繊維ウエブへの薬液塗布方法および薬液塗布装置
JP2005113368A (ja) * 2004-12-07 2005-04-28 Daio Paper Corp 衛生用紙

Cited By (5)

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EP2589324A1 (fr) * 2010-06-30 2013-05-08 Daio Paper Corporation Papier tissu et procédé de fabrication de papier tissu
EP2589324A4 (fr) * 2010-06-30 2015-03-25 Daio Seishi Kk Papier tissu et procédé de fabrication de papier tissu
US9956750B2 (en) 2010-06-30 2018-05-01 Daio Paper Corporation Tissue paper and method of producing tissue paper
CN107105947A (zh) * 2015-03-31 2017-08-29 大王制纸株式会社 薄页纸
EP3278695A4 (fr) * 2015-03-31 2018-08-22 Daio Paper Corporation L'invention fournit un papier mince dont la sensation d'hydratation et le lissé sont excellents.

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JPWO2011080940A1 (ja) 2013-05-09
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