WO2020181884A1 - Procédé de production d'une serviette en papier double épaisseur soluble constituée de pâte de bois pure - Google Patents

Procédé de production d'une serviette en papier double épaisseur soluble constituée de pâte de bois pure Download PDF

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Publication number
WO2020181884A1
WO2020181884A1 PCT/CN2019/129641 CN2019129641W WO2020181884A1 WO 2020181884 A1 WO2020181884 A1 WO 2020181884A1 CN 2019129641 W CN2019129641 W CN 2019129641W WO 2020181884 A1 WO2020181884 A1 WO 2020181884A1
Authority
WO
WIPO (PCT)
Prior art keywords
paper
fiber slurry
double
slurry
wood pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/129641
Other languages
English (en)
Chinese (zh)
Inventor
曹海兵
董红明
鲁宾
徐东
甘孟冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd
Original Assignee
ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd
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 ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd filed Critical ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd
Publication of WO2020181884A1 publication Critical patent/WO2020181884A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent paper
    • D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
    • D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT; ACCESSORIES THEREFOR, e.g. 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
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/007—Modification of pulp properties by mechanical or physical means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/10—Mixtures of chemical and mechanical pulp
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • 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
    • D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
    • D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
    • D21H27/007—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties
    • 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
    • D21H27/32—Multi-ply with materials applied between the sheets

Definitions

  • the invention relates to a production method of pure wood pulp double-layer soluble paper towels.
  • the paper towels on the current market are mainly high-weight single-layer paper towels. They are mainly used in toilets, medical places and other places.
  • the products are required to have properties such as high tensile strength, high humidity strength, and high breakability, but they cannot be achieved like toilet paper. After the same use, it is directly discarded into the sewer and must be collected in the trash can for centralized treatment. It is inconvenient to use in toilets with special requirements such as airplanes and high-speed trains. At the same time, this type of product is directly discarded into the airplane toilet, which may cause the toilet to be blocked and cause equipment damage.
  • the purpose of the present invention is to provide a method for producing pure wood pulp double-layer soluble paper towels, and solve the technical problem that the existing paper towels are easily blocked after being used and discarded.
  • Step 1 The imported bleached softwood and hardwood pulp boards are separately processed by a hydraulic pulper to form long fiber pulp and short fiber pulp, and 0.3-0.6ml fiber active beating enzyme is added during the pulping process;
  • Step 2 The long-fiber slurry processed by step 1 is beaten by a disc mill, and the beating degree of the long-fiber slurry is 23 ⁇ 26°SR.
  • the short-fiber slurry processed by step 1 is passed through a high-frequency decomposing machine. Disintegrate, and then mix the long fiber slurry and the short fiber slurry, the long fiber slurry is 60 to 70%, and the short fiber slurry is 30 to 40%;
  • Step 3 The slurry mixed in step 2 is beaten by a refiner and the beating degree is precisely controlled at 28 ⁇ 33°SR for papermaking use;
  • Step 4 Pass the slurry prepared in step 3 to the wire section of the paper machine for forming.
  • the J/W ratio is set at 0.87 ⁇ 0.93, and the vertical and horizontal tension ratio of the formed paper is 1.8 ⁇ 2.4;
  • Step 5 The paper formed in step 4 is subjected to high-speed centrifugal dehydration and high-temperature drying treatment, and the surface wrinkle of the paper is controlled within -14% to -18%, and the moisture content of the paper in each square is 7% to 7.6% ;
  • Step 6 Roll the paper processed in Step 5 into paper, and cut it into trays of different widths;
  • Step 7 Pass the two rolls of paper after the step 6 slitting through the unwinding frame, each guide roller surface layer through the gluing machine, the bottom layer after the decorative embossing roller, and then entering the composite embossing roller, and then passing through the longitudinal split After the knife is cut, the paper is folded out by an N-folder, and finally packaged into a finished product by a single-packing machine.
  • the starch enhancer is added to the refiner in step 3.
  • the glue coated on the gluing machine in step 7 is a food-grade composite water-soluble glue.
  • the present invention is prepared by the production methods of raw material bulking, raw material mixing, raw material beating, paper machine wire forming, dehydration and drying, winding into paper and slitting and folding paper.
  • the toilet paper is made of imported bleached coniferous wood and hardwood pulp board as raw materials, so plant extracts are used as raw materials, pure wood pulp base paper is used as the base material, and the nature is mild, the base paper feels soft and has high humidity, and the product quality is high.
  • the fiber active beating enzyme promotes the water absorption and swelling of the fiber and improves the degree of beating.
  • the vertical and horizontal tensile force ratio of the formed paper is 1.8 to 2.4, which ensures that the base paper has strong resistance to breakage during stretching and is not easy to break.
  • the moisture content of the paper in each square is controlled at 7% to 7.6%, the moisture content is the best, the base paper is not easy to generate static electricity, and the base paper has strong tensile strength, flexibility, and folding resistance, and is not easy to curl and warp. Edges, wrinkles, etc.; to achieve the high tensile strength of the base paper and good water solubility requirements, which can not only meet the requirements of drying wet hands, but also directly throw into the toilet or the sewer without causing blockage, realizing the upgrade of existing paper towels , To meet the special environment requirements for the use of paper towels.
  • Step 1 The imported bleached softwood and hardwood pulp boards are separately processed by a hydraulic pulper to form long fiber pulp and short fiber pulp, and 0.3-0.6ml fiber active beating enzyme is added during the pulping process;
  • Step 2 The long-fiber slurry processed by step 1 is beaten by a disc mill, and the beating degree of the long-fiber slurry is 23 ⁇ 26°SR.
  • the short-fiber slurry processed by step 1 is passed through a high-frequency decomposing machine. Disintegrate, and then mix the long fiber slurry and the short fiber slurry, the long fiber slurry is 60 to 70%, and the short fiber slurry is 30 to 40%;
  • Step 3 The slurry mixed in step 2 is beaten by a refiner and the beating degree is precisely controlled at 28 ⁇ 33°SR for papermaking use;
  • Step 4 Pass the slurry prepared in step 3 to the wire section of the paper machine for forming.
  • the J/W ratio is set at 0.87 ⁇ 0.93, and the vertical and horizontal tension ratio of the formed paper is 1.8 ⁇ 2.4;
  • Step 5 The paper formed in step 4 is subjected to high-speed centrifugal dehydration and high-temperature drying treatment, and the surface wrinkle of the paper is controlled within -14% to -18%, and the moisture content of the paper in each square is 7% to 7.6% ;
  • Step 6 Roll the paper processed in Step 5 into paper, and cut it into trays of different widths;
  • Step 7 Pass the two rolls of paper after the step 6 slitting through the unwinding frame, each guide roller surface layer through the gluing machine, the bottom layer after the decorative embossing roller, and then entering the composite embossing roller, and then passing through the longitudinal split After the knife is cut, the paper is folded out by an N-folder, and finally packaged into a finished product by a single-packing machine.
  • the towel paper prepared by the production method of raw material bulk pulping, raw material mixing, raw material beating, paper machine mesh forming, dehydration and drying, winding into paper and slitting and folding paper is made of imported bleached softwood and Hardwood pulp board as the raw material, plant extracts as the raw material, pure wood pulp base paper as the base material, mild in nature, smooth in the base paper, high humidity, high product quality, due to the added fiber active beating enzyme to promote fiber swelling and water absorption Splitting and brooming improves the beating degree.
  • the longitudinal and longitudinal tensile force ratio of the formed paper is 1.8 ⁇ 2.4, which ensures that the base paper has strong resistance to breakage during stretching and is not easy to break.
  • the moisture content is controlled at 7% to 7.6%, the moisture content is the best, the base paper is not easy to generate static electricity, and the base paper has strong tensile strength, flexibility, and folding resistance, and is not prone to curling, curling, wrinkling, etc.; to achieve high base paper
  • Tensile strength and good water solubility requirements can not only meet the requirements of wiping wet hands, but also directly throw into the toilet or the sewer without causing blockage, realizing the product upgrade of existing paper towels and meeting the requirements for the use of paper towels in special environments .
  • step 3 starch enhancers are added to the refiner. It can improve the dry tension of the base paper.
  • the starch enhancer in this embodiment is preferably food-grade modified tapioca starch.
  • the glue coated on the gluing machine in step 7 is a food-grade composite water-soluble glue, which can improve safety during use Performance, and can avoid environmental pollution after discarding, realize the function of energy saving and environmental protection, and can adapt to normal use on airplanes.
  • the present invention has other embodiments.
  • Those skilled in the art can make various changes and modifications according to the present invention. As long as they do not deviate from the spirit of the present invention, they should all be defined by the appended claims of the present invention. range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)

Abstract

L'invention concerne un procédé de production d'une serviette en papier double épaisseur soluble constituée de pâte de bois pure, comprenant des plaques importées de pâtes blanchies de bois tendre et de bois dur, le procédé de production comprenant séquentiellement les étapes suivantes consistant : à disperser la matière première, à mélanger la matière première, à triturer la matière première, à former des mailles au moyen d'une machine à papier, à déshydrater et à sécher, à enrouler le papier et à fendre à nouveau et à plier le papier. La serviette en papier soluble peut atteindre une force de traction élevée et de bonnes exigences d'hydrosolubilité de papier brut, peut non seulement être utilisée pour essuyer des mains humides, mais peut également être directement jetée dans les toilettes ou les égouts sans provoquer de bouchon.
PCT/CN2019/129641 2019-03-08 2019-12-28 Procédé de production d'une serviette en papier double épaisseur soluble constituée de pâte de bois pure Ceased WO2020181884A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910177172.9 2019-03-08
CN201910177172.9A CN110055805A (zh) 2019-03-08 2019-03-08 一种纯木浆双层可溶擦手纸的生产方法

Publications (1)

Publication Number Publication Date
WO2020181884A1 true WO2020181884A1 (fr) 2020-09-17

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EP (1) EP3705624A1 (fr)
CN (1) CN110055805A (fr)
WO (1) WO2020181884A1 (fr)

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CN115216890A (zh) * 2022-05-30 2022-10-21 江苏好健康新材料有限公司 一种易降解可冲散纸的制作方法

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CN110318298B (zh) * 2019-06-26 2020-04-21 深圳市铭诚生活科技有限公司 一种含复合施胶液的多层厨房用纸
CN115670283A (zh) * 2022-10-14 2023-02-03 杭州富阳登月纸业有限公司 纯木浆双层可溶擦手纸的生产方法
CN116463875A (zh) * 2023-04-14 2023-07-21 德州胜港纸业有限公司 一种表柔纸制备方法
CN117051620B (zh) * 2023-08-31 2025-08-01 重庆理文卫生用纸制造有限公司 纯竹浆漂白速溶纸生产工艺
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CN115216890A (zh) * 2022-05-30 2022-10-21 江苏好健康新材料有限公司 一种易降解可冲散纸的制作方法

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CN110055805A (zh) 2019-07-26
EP3705624A1 (fr) 2020-09-09

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