WO2011080941A1 - Procédé de fabrication de rouleau intégral secondaire pour produit en papier absorbant - Google Patents

Procédé de fabrication de rouleau intégral secondaire pour produit en papier absorbant Download PDF

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Publication number
WO2011080941A1
WO2011080941A1 PCT/JP2010/063021 JP2010063021W WO2011080941A1 WO 2011080941 A1 WO2011080941 A1 WO 2011080941A1 JP 2010063021 W JP2010063021 W JP 2010063021W WO 2011080941 A1 WO2011080941 A1 WO 2011080941A1
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Prior art keywords
tissue paper
continuous sheet
chemical solution
roll
paper products
Prior art date
Application number
PCT/JP2010/063021
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English (en)
Japanese (ja)
Inventor
敦嗣 小沼
Original Assignee
大王製紙株式会社
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 大王製紙株式会社 filed Critical 大王製紙株式会社
Priority to CN201080059616.6A priority Critical patent/CN102711571B/zh
Priority to KR1020127019834A priority patent/KR101712690B1/ko
Priority to JP2010535164A priority patent/JP4695728B1/ja
Publication of WO2011080941A1 publication Critical patent/WO2011080941A1/fr

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Classifications

    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • 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
    • 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
    • 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
    • A47K10/18—Holders; Receptacles
    • A47K10/20—Holders; Receptacles for piled sheets
    • 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
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/42—Dispensers for paper towels or toilet-paper dispensing from a store of single sheets, e.g. stacked
    • 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
    • A47K7/00—Body washing or cleaning implements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • B65H45/221—Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement incorporating folding triangles
    • 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
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/50—Spraying or projecting
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • 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

Definitions

  • the present invention relates to a method for producing a secondary material roll for tissue paper products.
  • tissue paper that has been softened by containing a lotion chemical is frequently used (Patent Document 1).
  • a method for applying a chemical solution to this sheet (base paper) application by a printing method such as immersion, spray application, flexo, gravure, etc. is employed.
  • tissue paper is required to be bulky in order to improve its feeling of use, but tissue paper coated with lotion chemicals tends to stretch the crepe formed during paper making due to water absorption and moisture absorption of the paper. Therefore, the bulk is likely to decrease.
  • JP-A-4-9121 JP 2006-161192 A Japanese Patent Laid-Open No. 2008-190050 JP 2009-34278 A
  • tissue paper containing a lotion chemical solution which is bulky and has a flexible feeling of use and high wiping performance without using a bulking agent or the like and without increasing the number of production steps.
  • the time required for manufacturing the lotion chemical-containing tissue paper is shortened.
  • inventions that has solved this problem is as follows.
  • a method for producing a secondary web roll for tissue paper products wherein a plurality of secondary web rolls for tissue paper products are continuously produced from the primary web roll, A laminating step of laminating a primary web roll fed out from a plurality of primary web rolls along its continuous direction to form a laminated continuous sheet; Applying a chemical solution only on one surface layer side of the laminated continuous sheet, or applying a chemical solution with a larger application amount to one surface layer side than the other surface layer side, and A joining step of forming a line-shaped joining portion that prevents delamination with respect to the laminated continuous sheet by sandwiching the laminated continuous sheet between the receiving roll and the roller, A slitting process for slitting the laminated continuous sheet so as to have a product width of tissue paper products or a multiple of the width, Winding step of winding each slit continuous laminated sheet coaxially to form a plurality of secondary rolls of product width or multiple width of tissue paper products,
  • the base paper constituting the tissue paper tends to extend particularly in the MD direction (length direction) due to water absorption.
  • the elongation ratio varies depending on the crepe ratio of the base paper and the amount of water absorbed.
  • the chemical solution is applied only to one of the two continuous layer sheets forming the surface layer, or applied to the continuous two-layer sheet. A difference is provided in the amount of the chemical solution to be applied, and after application of the chemical solution, a joining portion is partially formed to fix the stack.
  • the continuous sheet coated with a large amount of the chemical solution extends from the other continuous sheet, wrinkles are generated on the surface, and this has the effect that the tissue paper becomes bulky. Even if the said chemical
  • the laminated continuous sheet after applying the chemical solution is wound while being slit after joining.
  • the surface of the surface continuous sheet coated with a large amount of the chemical solution comes into contact with the surface of the other continuous layer continuous sheet, so that the chemical solution penetrates (seasoning).
  • This seasoning has the following effects.
  • (B) The crepe paper has a property that it is difficult to return to the original state after it has been absorbed by moisture, water absorption and stretched, and the tendency is stronger as the crepe rate is higher, that is, as the elongation is larger.
  • the laminated continuous sheet to which the chemical solution is applied has the same composition as the chemical solution applied to the front and back sides in order to make the surface properties of the outer surface of the two front and back surfaces, that is, the surface in contact with the skin substantially the same.
  • the lamination is preferably integrated 0.3 to 2.5 seconds after the last chemical application. If the time is less than 0.3 seconds, the chemical solution is not sufficiently absorbed by the base paper, so that the chemical solution adheres to the paper roll or the embossed roller roll to break the paper, or the respective rolls are contaminated. If the time exceeds 2.5 seconds, the continuous sheet coated with the chemical solution is stretched, so that even if it is fixed to another continuous sheet in the subsequent process, wrinkles are less likely to occur, making it difficult to obtain the desired effect. In addition, when the continuous sheet is fully stretched, there is no stretch that can cope with draw fluctuations, and the tensile strength is reduced due to moisture absorption and water absorption.
  • a bulky processed tissue paper By producing wrinkles in at least one ply of two or more ply tissue papers, a bulky processed tissue paper can be obtained regardless of the addition of a bulking agent or embossing. Moreover, since wrinkles are added and air is included between the plies, a soft and soft texture can be given. In particular, in tissue paper having wrinkles on the surface layer, the effect of improving the wiping performance by wrinkles and improving the diffusibility at the time of wiping by increasing the surface area can also be obtained. Moreover, the chemical
  • (B) 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 apparatus outline
  • the winding direction of the original roll is defined as the MD direction or the longitudinal direction
  • the direction perpendicular to the winding direction is defined as the CD direction or the lateral direction.
  • a method for manufacturing household tissue paper and a manufacturing facility thereof according to the present invention will be described below by taking a manufacturing method and facility of tissue paper containing a chemical solution as an example.
  • this invention is applied not only to tissue paper but to toilet paper, kitchen paper, etc.
  • FIG. 2 shows the flow of the manufacturing process. 1 is preferably performed by a ply machine which is an integrated apparatus.
  • Raw material pulp includes mechanical pulp such as groundwood pulp (GP), pressure-rise groundwood pulp (PGW), and thermomechanical pulp (TMP): semi-chemical pulp (SCP), high yield unexposed kraft pulp (HNKP) Chemical pulps such as softwood bleached kraft pulp (NBKP), hardwood unbleached kraft pulp (HNKP), hardwood unbleached kraft pulp (LUKP), hardwood bleached kraft pulp (LBKP), etc .: deinking pulp (DIP), waste pulp (WP) ) And other used paper pulp.
  • 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.
  • other fiber raw materials include polyethylene terephthalate, polybutylene terephthalate, and polyester fibers such as copolymers thereof, polyolefin fibers such as polyethylene, polypropylene, and polystyrene, polyacrylonitrile, modacrylic, etc.
  • Acrylic 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, etc.
  • chemical fibers such as recycled cellulose fibers such as viscose rayon, copper ammonia rayon, polynosic rayon, lyocell, etc., spun fibers of 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 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 basis weight of the single continuous sheets 31 and 32 wound around the primary raw roll is 10 to 25 g / m 2 , preferably 12 to 20 g / m 2, and the paper thickness of the continuous sheets 31 and 32 is 2 plies. It is desirable that the thickness is 110 to 250 ⁇ m, preferably 130 to 200 ⁇ m in the stacked state.
  • the crepe rate of the continuous sheets 31 and 32 is preferably 10 to 30%, more preferably 12 to 25%.
  • the crepe rate of the continuous sheet 31 and the continuous sheet 32 may be the same, but the crepe rate of one continuous sheet 31 is 2 to 10% (more preferably 2 to 5%) higher than the other continuous sheet 32. It is preferable to do.
  • 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 chemical application amount of the two flexo coaters there is a difference in the chemical application amount of the two flexo coaters, or the chemical solution is applied only by one flexo coater.
  • the coating facility 16 that directly applies the chemical solution to the continuous sheet 31 applies more chemical solution than the other coating facility 17.
  • the ratio of the amount of chemical solution applied on both sides is 100: 0 to 60:40, preferably 75:25 to 60:40.
  • the total amount of the chemical solution applied to both sides of the two plies is 1.5 to 5.0 g / m 2 , preferably 2.0 to 4.0 g / m 2 .
  • 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.
  • 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.
  • hydrophilic polymer gelling agent collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or its salt, ceramide, etc.
  • humectants 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 lamination is integrated within 0.3 to 2.5 seconds, preferably within 0.3 to 1.0 seconds.
  • it is provided to the contact embossing roller 18 and the receiving roll 19, and is fixed by performing a contact embossing (knurling) process on the continuous sheet of 2 plies.
  • 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.
  • the two-ply continuous sheet provided with contact embossing is cut into a product width by a slitter 20 and then taken up by a winding drum 21 to form a secondary raw roll 22. It is preferable that the secondary raw roll 22 wound up with a predetermined number of windings is allowed to stand at room temperature for 8 hours or more, and the penetration of the chemical coating agent into the paper layer and the transfer to the opposite surface are gradually performed.
  • the chemical solution coating process has been performed by an off-machine coating equipment and the like, and the operation speed has been 200 to 350 m / min.
  • the operating speed of the apparatus may be equal to the conventional coating process speed, but it is preferable not to reduce the operating speed of other manufacturing processes. After application, the strength decreases due to water absorption and moisture absorption, and paper breakage is likely to occur.
  • the coating speed is 300 to 1200 m / min, more preferably 750 to 900 m so that lamination and fixing can be performed before water absorption and moisture absorption proceed. Desirable to do in / min.
  • the tissue paper after chemical penetration is folded and stored in a paper box.
  • FIG. 3 shows an example of tissue paper according to this embodiment.
  • FIG. 3A is a cross-sectional view of a continuous sheet laminated on two plies before chemical application (cross-sectional view cut in parallel with the MD direction).
  • a difference is provided in the amount of the chemical solution on both surfaces, and a large amount of the chemical solution is applied to the continuous sheet 31 side in the figure.
  • the lamination is integrated by the contact emboss 30 and cut to the product width by the slitter (FIG. 3B). Thereafter, the integrated ply is taken up and left to infiltrate the chemical solution (chemical solution infiltration step).
  • the continuous sheets 31 and 32 coated with the chemical solution mainly extend in the MD direction.
  • the continuous sheet 31 to which more chemical solution is applied has a higher elongation rate than the other continuous sheet 32.
  • both continuous sheets are fixed by contact embossing, Wrinkles are generated (FIG. 3C). If a difference is also provided in the crepe rate of the continuous sheets to be laminated and a base paper having a high crepe rate is used for the continuous sheet 31, it is possible to make a difference in the elongation rate between the continuous sheet 31 and the continuous sheet 32.
  • the crepe is formed by the difference between the dryer speed and the winding speed after the base paper is dried with a Yankee dryer and then peeled off from the dryer with a creping doctor.
  • the shape of this crepe is adjusted by sticking the paper to the dryer, but there is some variation in this sticking and the fiber raw material is not evenly distributed. However, there are some variations in the crepe shape. This variation becomes more prominent as the crepe rate increases.
  • the crepe rate is a value determined by the following formula. ⁇ ((Dryer peripheral speed during papermaking)-(Reel peripheral speed)) / (Dryer peripheral speed during papermaking) x 100
  • the tissue paper as a product has a different bulk feeling unless the chemical solution is applied (FIG. 4 (A )).
  • the continuous sheet 31 extends at a higher elongation rate than the continuous sheet 32. Since they are fixed in parallel (not shown), the continuous sheet 31 is waved and the bulk of the laminated sheet is increased. (FIG. 4B).
  • the amount of water in the chemical solution is 1 to 15%, preferably 5 to 13%.
  • the amount of water in the chemical solution is determined by the Karl Fischer method.
  • the paper thickness per set is set to 110 to 180 ⁇ m, more preferably 120 to 170 ⁇ m, still more preferably 130 to 160 ⁇ m.
  • the web bulk is preferably 50 to 68 mm, more preferably 55 to 65 mm.
  • a two-ply tissue paper is illustrated, but a three-ply tissue paper having one or more intermediate layers may be used.
  • 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 the use in a multi-stand interfolder with high productivity is more preferable.
  • 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.
  • an example of the 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 a direction (the horizontal direction in FIG. 6 and the front-to-back direction in FIG. 7) in which the required number is orthogonal to the plane of the drawing.
  • 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 unit 60 includes a folded plate group 64 in which a necessary number of folded plates P, P.
  • 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. 9, 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.
  • FIG. 10 to FIG. 13 show in detail the portions of the folding mechanism 60, particularly the folded plate P.
  • a pair of continuous secondary continuous sheets 63A and 63B are guided for each folded plate P.
  • 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 is overlapped on the lower side is referred to as a first continuous secondary continuous sheet 63A
  • the continuous secondary continuous sheet that is overlapped on the upper side is the second continuous sheet.
  • these continuous secondary continuous sheets 63A and 63B are, as shown in FIGS. 9 and 11, second continuous secondary sheets 63A 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 FIGS.
  • 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 67 obtained by 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.
  • the tissue paper bundle 67a is further stored in the storage box B in the subsequent equipment.
  • the paper direction of the laminated band 67 is the vertical direction (MD direction) along the flow direction FL, and is horizontal along the direction orthogonal to the flow direction.
  • Direction (CD direction) is the vertical direction
  • the direction of the paper of the tissue paper constituting the tissue paper bundle 67a obtained by cutting the laminated band 67 into a predetermined length is along the folding direction of the tissue paper as shown in FIG.
  • FIG. 14 (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, so as shown in FIG.
  • the pulling direction is along the horizontal direction (CD direction) of the tissue paper T.
  • FIG. 15 shows an outline of an apparatus according to another embodiment of the present invention
  • FIG. 16 shows a flowchart.
  • the laminated continuous sheet after chemical application and lamination integration is sent to the rotary interfolder 23, subjected to folding processing, and then cut to the product width.
  • a base paper and a chemical solution were produced under the following conditions, and a base paper elongation test (Test 1) and a tissue paper performance comparison test (Test 2) were performed.
  • ⁇ Base paper The pulp constituting the base paper was NBKP 50% and LBKP 50%. Further, the base paper before ply processing was used with a basis weight of 13.5 g / m 2 per ply, a paper thickness of 150 ⁇ m with two plies stacked, and a crepe rate of 19%.
  • the chemical solution was prepared such that the viscosity was 300 mPa ⁇ s (40 ° C.).
  • (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.
  • Paper thickness It shall be measured using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (Ozaki Seisakusho) under the conditions of JIS P 8111 (1998). Specifically, confirm that there is no dust or dust between the plunger and the measurement table, lower the plunger on the measurement table, move the memory of the dial thickness gauge to adjust the zero point, Raise the plunger, place the sample on the test bench, slowly lower the plunger perpendicular to the paper surface, and read the gauge at that time. At this time, only the plunger is placed.
  • 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 measuring 10 times with 2 plies.
  • the tissue papers according to Examples 1 and 2 and Comparative Examples 1 and 2 were subjected to sensory evaluation regarding softness and soft feeling.
  • the sensory evaluation was carried out by 15 inspectors in a five-step evaluation, with a general-purpose tissue paper (“Erière tissue” 180 groups (made by Daio Paper)) not applied with a chemical solution being “3”.
  • the evaluation criteria are as follows. All the results of the erière tissue were set to 3. 5: Very good 4: Excellent 3: Equivalent to the standard 2: Inferior 1: The result of sensory evaluation significantly inferior is shown in Table 1.
  • Examples 1-9 which are two-ply tissue papers
  • Comparative Examples the paper thickness and web bulk are similar to those of Examples 1-9, although the rice weight is almost the same. A high value was observed.
  • the Example exceeded the comparative example in a soft feeling.
  • Examples 1 and 2 were found to have good flexibility (softness, softness) comparable to that of the Comparative Example while maintaining a high paper thickness and a soft feeling.
  • the present invention can be used not only in tissue paper used for home use but also in any field that requires bulky thin paper, such as industrial use or wiping of laboratory equipment.

Abstract

La présente invention concerne un papier absorbant fabriqué pour être gonflant sans impliquer l'emploi d'agents gonflants et analogues et sans impliquer l'augmentation du nombre de processus de fabrication. L'invention a également pour objet un procédé pour fabriquer des rouleaux intégraux secondaires destinés à des produits en papier absorbant, le procédé comprenant : (1) une étape de laminage permettant de former une feuille continue laminée par laminage de rouleaux intégraux primaires provenant d'une pluralité de rouleaux intégraux primaires dans une direction le long de laquelle les rouleaux se prolongent; (2) une étape d'application de solution chimique consistant à appliquer une solution chimique uniquement sur l'une des couches supérieures de la feuille continue laminée ou à appliquer plus de solution chimique sur l'une des couches supérieures que sur les autres couches supérieures; (3) une étape d'assemblage consistant à former des parties d'assemblage linéaires qui empêchent la séparation des couches sur la feuille continue laminée par pincement de la feuille continue laminée entre un cylindre de réception et un cylindre entraîné; (4) une étape de découpage consistant à découper la feuille continue laminée en feuilles ayant une largeur ou une largeur de plusieurs feuilles d'un produit en papier absorbant; et (5) une étape de bobinage consistant à former une pluralité de rouleaux intégraux secondaires ayant la largeur ou la largeur de plusieurs feuilles du produit en papier absorbant, par bobinage coaxial des feuilles continues laminées découpées.
PCT/JP2010/063021 2009-12-28 2010-08-02 Procédé de fabrication de rouleau intégral secondaire pour produit en papier absorbant WO2011080941A1 (fr)

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JP2020072961A (ja) 2020-05-14
KR20120098943A (ko) 2012-09-05
JPWO2011080941A1 (ja) 2013-05-09
JP6314260B2 (ja) 2018-04-18
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