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WO2020181884A1 - Production method of double-layer soluble paper towel made of pure wood pulp - Google Patents

Production method of double-layer soluble paper towel made of pure wood pulp 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
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WO
WIPO (PCT)
Prior art keywords
paper
fiber slurry
double
slurry
wood pulp
Prior art date
Application number
PCT/CN2019/129641
Other languages
French (fr)
Chinese (zh)
Inventor
曹海兵
董红明
鲁宾
徐东
甘孟冬
Original Assignee
浙江景兴纸业股份有限公司
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Application filed by 浙江景兴纸业股份有限公司 filed Critical 浙江景兴纸业股份有限公司
Publication of WO2020181884A1 publication Critical patent/WO2020181884A1/en

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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
    • 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 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
    • 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

A production method of a double-layer soluble paper towel made of pure wood pulp, comprising imported bleached softwood and hardwood pulp plates, wherein the production method sequentially comprises the following steps: raw material dispersion, raw material mixing, raw material pulping, paper machine mesh forming, dehydration and drying, paper rolling, and paper slitting and folding. The soluble paper towel can achieve high tensile force and good water solubility requirements of raw paper, not only can be used to wipe wet hands, but also can be directly discarded into a toilet or a sewer without causing blockage.

Description

一种纯木浆双层可溶擦手纸的生产方法Production method of pure wood pulp double-layer soluble paper towel 技术领域Technical field
本发明涉及一种纯木浆双层可溶擦手纸的生产方法。The invention relates to a production method of pure wood pulp double-layer soluble paper towels.
背景技术Background technique
在当下市场上的擦手纸均为高克重单层擦手纸为主，其使用主要为卫生间、医用等场所，要求产品具有高拉力、高湿强、高耐破等属性，但无法实现像卫生纸一样使用后直接丢弃到下水道中，必须收集到垃圾桶内集中处理。在飞机、高铁上等特殊要求的卫生间内使用起来存在较多不便，同时该类型产品直接丢弃至飞机马桶内，可能造成马桶堵塞，造成设备损坏等情况的出现。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.
发明内容Summary of the invention
本发明所要达到的目的就是提供一种纯木浆双层可溶擦手纸的生产方法，解决现有擦手纸使用丢弃后容易导致堵塞的技术问题。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.
为了解决上述技术问题，本发明是通过以下技术方案实现的：一种纯木浆双层可溶擦手纸的生产方法，包括进口漂白针叶木和阔叶木浆板，所述生产方法依次包括以下步骤：In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a production method of pure wood pulp double-layer soluble paper towels, including imported bleached softwood and hardwood pulp boards, the production method sequentially includes the following steps :
步骤一：将进口漂白针叶木和阔叶木浆板分别通过水力碎浆机进行散浆处理形成长纤浆料以及短纤浆料，且散浆过程中加入0.3～0.6ml的纤维活性打浆酶；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;
步骤二：将步骤一散浆处理的长纤浆料通过盘磨机打浆处理，长纤浆料的打浆度23～26°SR，步骤一散浆处理的短纤浆料通过经过高频疏解机疏解，然 后将长纤浆料和短纤浆料混合，所述长纤浆料60～70％％，短纤浆料为30～40％；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%;
步骤三：将步骤二混合后的浆料经精磨机打浆并精准控制打浆度在28～33°SR备纸机抄造使用；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;
步骤四：将步骤三备好的浆料经过流送段到纸机网部成型，J/W比值设置在0.87～0.93，且成形后的纸张纵横向拉力比为1.8～2.4；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;
步骤五：将步骤四成型后的纸张经过高速离心脱水和高温干燥处理，且纸张表面起皱控制在-14％～-18％，且每一平方内所述纸张的水分为7％～7.6％；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% ；
步骤六：将步骤五处理后的纸张进行卷取成纸，并分切成不同幅宽的盘纸；Step 6: Roll the paper processed in Step 5 into paper, and cut it into trays of different widths;
步骤七：将两卷步骤六分切后的盘纸分别经过开卷架、各个导辊面层经过上胶机，底层经过装饰性压花辊后，再进入复合压花辊后，再经过纵向分切刀后到N型折叠机折叠出纸，最后经过单包机包装成成品。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.
优选的，步骤三中精磨机内加入淀粉类增强剂。Preferably, the starch enhancer is added to the refiner in step 3.
优选的，步骤七中的上胶机上涂覆的胶水为食品级复合水溶性胶水。Preferably, the glue coated on the gluing machine in step 7 is a food-grade composite water-soluble glue.
综上所述，本发明的优点：本发明通过原料散浆、原料混合、原料打浆、纸机网部成型、脱水干燥、卷取成纸和分切折叠出纸的生产方法制备而成的擦手纸，由于采用了进口漂白针叶木和阔叶木浆板为原料，从而以植物提取物为原料，纯木浆原纸为基材，性质温和，原纸手感柔滑且高湿度，产品品质高，由于加入的纤维活性打浆酶来促进纤维吸水润胀和分丝帚化，提高了打浆度，成形后的纸张纵横向拉力比为1.8～2.4，确保原纸在拉伸时抵抗断裂的能力强，不容易断裂，另外，将每一平方内所述纸张的水分控制在7％～7.6％，水分含量 最佳，原纸不易产生静电，且原纸抗张强度、柔韧性、耐折度强，不容易发生卷曲、翘边、起皱等现象；实现原纸的高拉力和很好的水溶性要求，既可满足擦干湿手，同时直接丢进马桶或下水道中又不会造成堵塞，实现现有擦手纸的产品升级，满足了特殊环境对擦手纸的使用要求。In summary, the advantages of the present invention: 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. In addition, 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.
具体实施方式detailed description
一种纯木浆双层可溶擦手纸的生产方法，包括进口漂白针叶木和阔叶木浆板，所述生产方法依次包括以下步骤：A production method of pure wood pulp double-layer soluble paper towels, including imported bleached softwood and hardwood pulp boards, the production method sequentially includes the following steps:
步骤一：将进口漂白针叶木和阔叶木浆板分别通过水力碎浆机进行散浆处理形成长纤浆料以及短纤浆料，且散浆过程中加入0.3～0.6ml的纤维活性打浆酶；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;
步骤二：将步骤一散浆处理的长纤浆料通过盘磨机打浆处理，长纤浆料的打浆度23～26°SR，步骤一散浆处理的短纤浆料通过经过高频疏解机疏解，然后将长纤浆料和短纤浆料混合，所述长纤浆料60～70％％，短纤浆料为30～40％；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%;
步骤三：将步骤二混合后的浆料经精磨机打浆并精准控制打浆度在28～33°SR备纸机抄造使用；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;
步骤四：将步骤三备好的浆料经过流送段到纸机网部成型，J/W比值设置在0.87～0.93，且成形后的纸张纵横向拉力比为1.8～2.4；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;
步骤五：将步骤四成型后的纸张经过高速离心脱水和高温干燥处理，且纸张表面起皱控制在-14％～-18％，且每一平方内所述纸张的水分为7％～7.6％；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% ；
步骤六：将步骤五处理后的纸张进行卷取成纸，并分切成不同幅宽的盘纸；Step 6: Roll the paper processed in Step 5 into paper, and cut it into trays of different widths;
步骤七：将两卷步骤六分切后的盘纸分别经过开卷架、各个导辊面层经过上胶机，底层经过装饰性压花辊后，再进入复合压花辊后，再经过纵向分切刀后到N型折叠机折叠出纸，最后经过单包机包装成成品。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.
本发明通过原料散浆、原料混合、原料打浆、纸机网部成型、脱水干燥、卷取成纸和分切折叠出纸的生产方法制备而成的擦手纸，由于采用了进口漂白针叶木和阔叶木浆板为原料，以植物提取物为原料，纯木浆原纸为基材，性质温和，原纸手感柔滑且高湿度，产品品质高，由于加入的纤维活性打浆酶来促进纤维吸水润胀和分丝帚化，提高了打浆度，成形后的纸张纵横向拉力比为1.8～2.4，确保原纸在拉伸时抵抗断裂的能力强，不容易断裂，另外，将每一平方内所述纸张的水分控制在7％～7.6％，水分含量最佳，原纸不易产生静电，且原纸抗张强度、柔韧性、耐折度强，不容易发生卷曲、翘边、起皱等现象；实现原纸的高拉力和很好的水溶性要求，既可满足擦干湿手，同时直接丢进马桶或下水道中又不会造成堵塞，实现现有擦手纸的产品升级，满足了特殊环境对擦手纸的使用要求。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. In addition, the 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 .
另外，为实现原纸的快速水溶性，要确保白水系统内无湿强剂残留，控制在串洗系统或停机系统白水完全置换后进行抄造生产，步骤三中精磨机内加入淀粉类增强剂，能提高原纸的干拉力，本实施例中的淀粉类增强剂优选食品级改型木薯淀粉，步骤七中的上胶机上涂覆的胶水为食品级复合水溶性胶水，能提高使用过程中的安全性能，且能避免丢弃后对环境的污染，实现了节能环保的功能，能适应在飞机上的正常使用。In addition, in order to realize the rapid water solubility of the base paper, it is necessary to ensure that there is no wet strength agent residue in the white water system, and control the papermaking production after the white water is completely replaced in the string washing system or the shutdown system. In 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.
除上述优选实施例外，本发明还有其他的实施方式，本领域技术人员可以根据本发明作出各种改变和变形，只要不脱离本发明的精神，均应属于本发明所附权利要求所定义的范围。In addition to the above-mentioned preferred embodiments, 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.

Claims (3)

  1. 一种纯木浆双层可溶擦手纸的生产方法，其特征在于：包括进口漂白针叶木和阔叶木浆板，所述生产方法依次包括以下步骤：A method for producing double-layer soluble paper towels with pure wood pulp, which is characterized in that it comprises imported bleached softwood and hardwood pulp boards, and the production method sequentially includes the following steps:
    步骤一：将进口漂白针叶木和阔叶木浆板分别通过水力碎浆机进行散浆处理形成长纤浆料以及短纤浆料，且散浆过程中加入0.3～0.6ml的纤维活性打浆酶；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;
    步骤二：将步骤一散浆处理的长纤浆料通过盘磨机打浆处理，长纤浆料的打浆度23～26°SR，步骤一散浆处理的短纤浆料通过经过高频疏解机疏解，然后将长纤浆料和短纤浆料混合，所述长纤浆料60～70％％，短纤浆料为30～40％；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%;
    步骤三：将步骤二混合后的浆料经精磨机打浆并精准控制打浆度在28～33°SR备纸机抄造使用；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;
    步骤四：将步骤三备好的浆料经过流送段到纸机网部成型，J/W比值设置在0.87～0.93，且成形后的纸张纵横向拉力比为1.8～2.4；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;
    步骤五：将步骤四成型后的纸张经过高速离心脱水和高温干燥处理，且纸张表面起皱控制在-14％～-18％，且每一平方内所述纸张的水分为7％～7.6％；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% ；
    步骤六：将步骤五处理后的纸张进行卷取成纸，并分切成不同幅宽的盘纸；Step 6: Roll the paper processed in Step 5 into paper, and cut it into trays of different widths;
    步骤七：将两卷步骤六分切后的盘纸分别经过开卷架、各个导辊面层经过上胶机，底层经过装饰性压花辊后，再进入复合压花辊后，再经过纵向分切刀后到N型折叠机折叠出纸，最后经过单包机包装成成品。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.
  2. 根据权利要求1所述的一种纯木浆双层可溶擦手纸的生产方法，其特征在 于:步骤三中精磨机内加入淀粉类增强剂。The method for producing pure wood pulp double-layer soluble paper towels according to claim 1, characterized in that: in step three, starch enhancers are added to the refiner.
  3. 根据权利要求1所述的一种纯木浆双层可溶擦手纸的生产方法，其特征在于:步骤七中的上胶机上涂覆的胶水为食品级复合水溶性胶水。The method for producing pure wood pulp double-layer soluble paper towels according to claim 1, wherein the glue coated on the gluing machine in step 7 is food-grade composite water-soluble glue.
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