WO2020181886A1 - 一种高抗水性箱板纸的生产方法 - Google Patents

一种高抗水性箱板纸的生产方法 Download PDF

Info

Publication number
WO2020181886A1
WO2020181886A1 PCT/CN2019/129644 CN2019129644W WO2020181886A1 WO 2020181886 A1 WO2020181886 A1 WO 2020181886A1 CN 2019129644 W CN2019129644 W CN 2019129644W WO 2020181886 A1 WO2020181886 A1 WO 2020181886A1
Authority
WO
WIPO (PCT)
Prior art keywords
slurry
paper
lining
core
sizing
Prior art date
Application number
PCT/CN2019/129644
Other languages
English (en)
French (fr)
Inventor
张小红
朱勋辉
盛晓英
杨玉军
王洪超
张晨健
Original Assignee
浙江景兴纸业股份有限公司
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 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 WO2020181886A1 publication Critical patent/WO2020181886A1/zh

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • 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
    • D21H11/14—Secondary fibres
    • 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
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • 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
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/06—Long fibres, i.e. fibres exceeding the upper length limit of conventional paper-making fibres; Filaments
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/06—Paper forming aids
    • D21H21/10—Retention agents or drainage improvers
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents

Definitions

  • the invention relates to a production method of high water-resistant cardboard paper.
  • the purpose of the present invention is to provide a method for producing high water-resistance cardboard paper, and solve the technical problem that the existing carton has low water resistance and causes the carton to collapse due to moisture absorption.
  • a method for producing high water-resistance cardboard paper including a paper body, from top to bottom, the paper body includes a surface layer, a lining layer, a core layer and a bottom layer in turn ,
  • the paper body is made of 0-50% imported waste paper and 50-100% domestic waste paper, and the production method sequentially includes the following steps:
  • Step 1 Disintegration: Put the imported waste paper and domestic waste paper into the hydraulic pulper through the chain plate machine in turn, add water to disintegrate to form a slurry, and the mass percentage concentration of the slurry is 4 to 6%;
  • Step 2 Desanding: the crushed slurry in step 1 is pumped into a high-concentration de-sanding device for de-sanding treatment;
  • Step 3 One-stage coarse screen: the slurry after step two is de-sanded through the discharge slurry tower for discharging treatment, and the slurry is subjected to coarse screen treatment;
  • Step 4 Classification screen: the slurry after coarse screen treatment in Step 3 is screened into long fibers, medium fibers and short fibers through fiber classification;
  • Step 5 Preparation of the slurry:
  • the short fibers screened in step 4 are concentrated by a multi-disc thickener to form a short fiber slurry with a mass concentration of 3.5 to 4.5%, and the medium fiber slurry screened in step 4 is reversely reduced Concentrated and light-weight desander, after being concentrated by a multi-disc thickener, after double-disc grinding and refining, a medium fiber slurry with a mass concentration of 3.5 to 4.5% is formed.
  • the long fiber slurry screened in step 4 is passed through After the multi-disc thickener is concentrated, it is processed by the thermal dispersion system, and then the long fiber slurry with a mass concentration of 3.5-4.5% is formed after the double-disc grinding and refining treatment;
  • Step 6 Preparation of the surface layer:
  • the long fiber slurry prepared in Step 5 is formed in sequence through the surface slurry mixing tank, the surface slurry sizing tank, the surface layer machine outer white water tank, the surface layer pressure screen, the surface layer head box, and the surface net.
  • Surface layer, and aluminum sulfate is added to the surface slurry sizing tank.
  • the weight of aluminum sulfate added in each ton of surface slurry is 5-15kg.
  • Add AKD to the white water tank of the surface layer machine, and add it to each ton of surface slurry
  • the weight of the AKD is 15-30kg, and the retention aid is added in front of the surface layer pressure screen.
  • the weight of the retention aid added per ton of surface layer slurry is 0.3-0.5K;
  • Step 7 Preparation of the lining: prepare the medium fiber slurry prepared in step 5 through the lining slurry mixing tank, the lining slurry sizing tank, the outer white water tank of the lining machine, the lining pressure screen, the lining headbox, and the lining net in turn.
  • the lining is formed, and aluminum sulfate is added to the lining slurry sizing tank.
  • the weight of aluminum sulfate added in the lining slurry is 10-20kg.
  • Add AKD to the white water tank outside the lining machine, and the lining slurry is added per ton.
  • the weight of the added AKD is 15-30kg, and the retention aid is added in front of the lining pressure screen.
  • the weight of the retention aid added per ton of lining slurry is 0.3-0.5Kg;
  • Step 8 Preparation of the core layer:
  • the short fiber slurry prepared in step 5 is passed through the core slurry mixing tank, the core slurry sizing tank, the outer white water tank of the core machine, the core pressure screen, the core headbox, and the core mesh in sequence.
  • the core layer is formed, and aluminum sulfate is added to the core slurry sizing tank.
  • the weight of aluminum sulfate added in each ton of core slurry is 3-10kg.
  • Add retention aid before the core pressure screen and add it before the core pressure screen The weight of the retention aid added per ton of core slurry is 0.2 ⁇ 0.5Kg;
  • Step 9 Preparation of the bottom layer:
  • the long fiber slurry and the medium fiber slurry prepared in step 5 are mixed through a bottom slurry preparation tank, and the mass ratio of each component is: 50-100% long fiber slurry and medium fiber slurry 0-50%, and then pass through the bottom slurry sizing tank, bottom machine outer white water tank, bottom pressure screen, bottom headbox to prepare the bottom layer, and add aluminum sulfate to the bottom slurry sizing tank, and add sulfuric acid per ton of bottom slurry
  • the weight of aluminum is 10-20kg.
  • the weight of AKD added in each ton of bottom slurry is 10-25kg.
  • the weight of the retention aid added per ton of lining slurry is 0.22 ⁇ 0.45K;
  • Step 10 Mesh compounding: the surface layer prepared in step 6, the liner prepared in step 7, the core layer prepared in step 8, and the bottom layer prepared in step 9 are compounded by a composite roller, and then dehydrated by a high vacuum suction box and a vacuum roll Processing to form wet paper;
  • Step eleven pressing: the paper formed in step ten is pressed through a large roll diameter and a shoe press to further dehydrate the paper.
  • the linear pressure of the shoe press is 1200-1500 N/cm, and the pressing dryness is 48-50%;
  • Step 12 Drying: Put the pressed paper in step 11 into the dryer for the first drying and drying treatment, and use a surface sizing machine for surface treatment on the bottom and surface layers after the first drying treatment.
  • Surface treatment includes aluminum sulfate, surface sizing agent, and starch glue solution prepared from starch.
  • the weight of aluminum sulfate and surface sizing agent added per square meter of paper is 0.2 ⁇ 0.35g, and the amount of starch added per square meter of paper is 2 ⁇ 5g; Put the surface-treated paper into the dryer for secondary drying and drying;
  • Step 13 Calendering: The paper dried in step 12 enters the hot roller soft calender for calendering and discharging.
  • the upper roller of the calender is a hot roller, and the lower roller is a controllable medium-high roller with high-strength outsourcing. Polyurethane, the temperature of the upper roller is 145 ⁇ 155°C, and the pressure of the pressure line is 40 ⁇ 60KN/m;
  • Step 14 Rolling paper: The paper calendered in step 13 is taken up by a winder and then cut.
  • the planar shape of the trough of the hydraulic pulper in step one is "D".
  • the hydraulic pulper further includes auxiliary equipment for removing impurities in waste paper.
  • the aluminum sulfate is liquid aluminum sulfate with a pH of 3.5 to 5.0, and an alumina content of 10 to 15%.
  • the AKD is a liquid solution with a solid content of 15.0 to 17.0% and a pH of 2.0 to 4.0
  • the surface sizing agent is a styrene-acrylic type surface sizing agent
  • the solid content is 29.0-32.0%
  • the PH value is 2.0-4.0
  • the retention aid is a solid retention aid PAM, or a solid retention aid and
  • the starch gum solution has a concentration of 8-15% and a temperature of 65-75°C.
  • the sizing machine is a film transfer sizing machine or an immersion sizing machine.
  • the present invention adopts crushing, sand removal, a coarse screen, a grading screen, slurry preparation, surface layer preparation, liner preparation, core layer preparation, bottom layer preparation, and mesh composite , Pressing, drying, calendering, and rolling paper production methods, because aluminum sulfate, AKD and retention aid are sequentially added in the preparation process of the surface layer, lining layer, core layer and bottom layer of the paper body.
  • the retention aid can increase the retention rate of fine fiber, aluminum sulfate, and AKD on the paper sheet, and reduce the loss.
  • AKD can be combined with fiber under the effect of "bridging" of aluminum sulfate, and make the fiber form water resistance under the high temperature of the dryer, forming a network water resistant structure.
  • the quantitative of the surface layer is low, and the AKD of the lining layer can make up for the weak point of water resistance in some areas caused by the small amount of slurry in the surface layer.
  • the mixed solution of starch glue, aluminum sulfate, and surface sizing agent under the squeeze of the surface sizing roller, the solution penetrates into the inside of the paper, reducing the fiber spacing and increasing the inter-fiber Hydrogen bonding fills the gaps between fibers, thereby enhancing the strength of the paper.
  • the aluminum sulfate in the surface treatment neutralizes the anions on the fiber surface, which promotes the combination of the surface sizing agent and the fiber, and promotes the aging reaction of the sizing agent, filling the gap between the fibers and the fiber left by the sizing in the slurry.
  • the weak point of water improves the water resistance of cardboard paper. It ensures that the surface and the bottom layer have the characteristics of strong water resistance and high strength, and the surface has no water-permeable voids, making it difficult for water to penetrate into the paper sheet, and the overall production process is simple and low-cost.
  • the cardboard paper produced by this process can be watered at room temperature for 10 minutes to achieve a water resistance effect with no penetration point.
  • the paper body is made of 0-50% imported waste paper and 50-100% domestic waste paper.
  • the overall production process is simple and low-cost, effectively reducing production costs, saving raw materials, and realizing the recycling of imported waste paper and domestic waste paper, which has good environmental and social benefits;
  • step eleven compared with the traditional press, the shoe press changes the instantaneous dynamic dehydration of the roller press to the long-term wide nip dehydration under static pressure, and the nip width of the shoe press It is 6-10 times that of the traditional nip. Due to this characteristic, the residence time of the paper in the shoe nip is 6-10 times that of the traditional roller nip under the same speed.
  • the shoe press uses a much higher pressure than the traditional roller pressing line, which helps to improve the efficiency of paper dehydration, is more conducive to the curing of the paper web, so that the paper obtains better strength and bulk, improves product performance, and calenders
  • the step utilizes the thermal plasticity of the fiber to decorate the surface of the paper to improve the smoothness; the high-strength polyurethane on the lower roller ensures the bulk of the paper.
  • a method for producing high water-resistance boxboard paper includes a paper body.
  • the paper body includes a surface layer, a lining layer, a core layer and a bottom layer from top to bottom.
  • the paper body includes 0-50% imported waste paper and 50% imported waste paper. ⁇ 100% of domestic waste paper is made, and the production method sequentially includes the following steps:
  • Step 1 Disintegration: Put the imported waste paper and domestic waste paper into the hydraulic pulper through the chain plate machine in turn, add water to disintegrate to form a slurry, and the mass percentage concentration of the slurry is 4 to 6%;
  • Step 2 Desanding: the crushed slurry in step 1 is pumped into a high-concentration de-sanding device for de-sanding treatment;
  • Step 3 One-stage coarse screen: the slurry after step two is de-sanded through the discharge slurry tower for discharging treatment, and the slurry is subjected to coarse screen treatment;
  • Step 4 Classification screen: the slurry after coarse screen treatment in Step 3 is screened into long fibers, medium fibers and short fibers through fiber classification;
  • Step 5 Preparation of the slurry:
  • the short fibers screened in step 4 are concentrated by a multi-disc thickener to form a short fiber slurry with a mass concentration of 3.5 to 4.5%, and the medium fiber slurry screened in step 4 is reversely reduced Concentrated and light-weight desander, after being concentrated by a multi-disc thickener, after double-disc grinding and refining, a medium fiber slurry with a mass concentration of 3.5 to 4.5% is formed.
  • the long fiber slurry screened in step 4 is passed through After being concentrated by the multi-disc thickener, it is processed by the thermal dispersion system, and then the long fiber slurry with a mass concentration of 3.5-4.5% is formed after the double-disc grinding and refining treatment;
  • Step 6 Preparation of the surface layer:
  • the long fiber slurry prepared in Step 5 is formed in sequence through the surface slurry mixing tank, the surface slurry sizing tank, the surface layer machine outer white water tank, the surface layer pressure screen, the surface layer head box, and the surface net.
  • Surface layer, and aluminum sulfate is added to the surface slurry sizing tank.
  • the weight of aluminum sulfate added in each ton of surface slurry is 5-15kg.
  • Add AKD to the white water tank of the surface layer machine, and add it to each ton of surface slurry
  • the weight of the AKD is 15-30kg, and the retention aid is added in front of the surface layer pressure screen.
  • the weight of the retention aid added per ton of surface layer slurry is 0.3-0.5K;
  • Step 7 Preparation of the lining: prepare the medium fiber slurry prepared in step 5 through the lining slurry mixing tank, the lining slurry sizing tank, the outer white water tank of the lining machine, the lining pressure screen, the lining headbox, and the lining net in turn.
  • the lining is formed, and aluminum sulfate is added to the lining slurry sizing tank.
  • the weight of aluminum sulfate added in the lining slurry is 10-20kg.
  • Add AKD to the white water tank outside the lining machine, and the lining slurry is added per ton.
  • the weight of the added AKD is 15-30kg, and the retention aid is added in front of the lining pressure screen, and the weight of the retention aid added per ton of lining slurry is 0.3-0.5Kg;
  • Step 8 Preparation of the core layer:
  • the short fiber slurry prepared in step 5 is passed through the core slurry mixing tank, the core slurry sizing tank, the outer white water tank of the core machine, the core pressure screen, the core headbox, and the core mesh in sequence.
  • the core layer is formed, and aluminum sulfate is added to the core slurry sizing tank.
  • the weight of aluminum sulfate added in each ton of core slurry is 3-10kg.
  • Add retention aid before the core pressure screen and add it before the core pressure screen The weight of the retention aid added per ton of core slurry is 0.2 ⁇ 0.5Kg;
  • Step 9 Preparation of the bottom layer:
  • the long fiber slurry and the medium fiber slurry prepared in step 5 are mixed through a bottom slurry preparation tank, and the mass ratio of each component is: 50-100% long fiber slurry and medium fiber slurry 0-50%, and then pass through the bottom slurry sizing tank, bottom machine outer white water tank, bottom pressure screen, bottom headbox to prepare the bottom layer, and add aluminum sulfate into the bottom slurry sizing tank, and add sulfuric acid per ton of bottom slurry
  • the weight of aluminum is 10-20kg.
  • the weight of AKD added in each ton of bottom slurry is 10-25kg.
  • the weight of the retention aid added per ton of lining slurry is 0.22 ⁇ 0.45K;
  • Step 10 Mesh compounding: the surface layer prepared in step 6, the liner prepared in step 7, the core layer prepared in step 8, and the bottom layer prepared in step 9 are compounded by a composite roller, and then dehydrated by a high vacuum suction box and a vacuum roll Processing to form wet paper;
  • Step eleven pressing: the paper formed in step ten is pressed through a large roll diameter and a shoe press to further dehydrate the paper.
  • the linear pressure of the shoe press is 1200-1500 N/cm, and the pressing dryness is 48-50%;
  • Step 12 Drying: Put the pressed paper in step 11 into the dryer for the first drying and drying treatment, and use a surface sizing machine for surface treatment on the bottom and surface layers after the first drying treatment.
  • Surface treatment includes aluminum sulfate, surface sizing agent, and starch glue solution prepared from starch.
  • the weight of aluminum sulfate and surface sizing agent added per square meter of paper is 0.2 ⁇ 0.35g, and the amount of starch added per square meter of paper is 2 ⁇ 5g; Put the surface-treated paper into the dryer for secondary drying and drying;
  • Step 13 Calendering: The paper dried in step 12 enters the hot roller soft calender for calendering and discharging.
  • the upper roller of the calender is a hot roller, and the lower roller is a controllable medium-high roller with high-strength outsourcing. Polyurethane, the temperature of the upper roller is 145 ⁇ 155°C, and the pressure of the pressure line is 40 ⁇ 60KN/m;
  • Step 14 Rolling paper: The paper calendered in step 13 is taken up by a winder and then cut.
  • the present invention adopts crushing, sand removal, a section of coarse screen, grading screen, slurry preparation, surface preparation, lining preparation, core preparation, bottom preparation, net compounding, pressing, drying, calendering, and rolling paper
  • aluminum sulfate, AKD and retention aid are sequentially added in the preparation process of the surface layer, lining layer, core layer and bottom layer of the paper body.
  • the retention aid can improve the fine fiber and aluminum sulfate.
  • AKD's retention rate on the paper reducing loss.
  • AKD can be combined with fiber under the effect of "bridging" of aluminum sulfate, and make the fiber form water resistance under the high temperature of the dryer, forming a network water resistant structure.
  • the quantitative of the surface layer is low, and the AKD of the lining layer can make up for the weak point of water resistance in some areas caused by the small amount of slurry in the surface layer.
  • the mixed solution of starch glue, aluminum sulfate, and surface sizing agent under the squeeze of the surface sizing roller, the solution penetrates into the inside of the paper, reducing the fiber spacing and increasing the inter-fiber Hydrogen bonding fills the gaps between fibers, thereby enhancing the strength of the paper.
  • the aluminum sulfate in the surface treatment neutralizes the anions on the fiber surface, which promotes the combination of the surface sizing agent and the fiber, and promotes the aging reaction of the sizing agent, filling the gap between the fibers and the fiber left by the sizing in the slurry.
  • the weak point of water improves the water resistance of cardboard paper. It ensures that the surface and the bottom layer have the characteristics of strong water resistance and high strength, and the surface has no water-permeable voids, making it difficult for water to penetrate into the paper sheet, and the overall production process is simple and low-cost.
  • the cardboard paper produced by this process can be watered at room temperature for 10 minutes to achieve a water resistance effect with no penetration point.
  • the paper body is made of 0-50% imported waste paper and 50-100% domestic waste paper.
  • the overall production process is simple and low-cost, effectively reducing production costs, saving raw materials, and realizing the recycling of imported waste paper and domestic waste paper, which has good environmental and social benefits;
  • the shoe press used in step eleven changes the instantaneous dynamic dehydration of the roll press to the long-term wide nip dehydration under static pressure.
  • the shoe press has the traditional nip width 6-10 times of the nip. Due to this feature, under the same vehicle speed, the residence time of the paper in the shoe nip is 6-10 times that of the traditional roller nip.
  • the shoe press uses a much higher pressure than the traditional roller pressing line, which helps to improve the efficiency of paper dehydration, is more conducive to the curing of the paper web, so that the paper obtains better strength and bulk, improves product performance, and calenders
  • the step utilizes the thermal plasticity of the fiber to decorate the surface of the paper to improve the smoothness; the high-strength polyurethane on the lower roller ensures the bulk of the paper.
  • the plan shape of the tank body of the hydraulic pulper in step one is "D" type.
  • the "D" type tank structure can change the flow path of the slurry in the tank body, thereby forming turbulent flow and increasing the waste paper room.
  • the friction force improves the efficiency of fiber separation and disintegration.
  • the hydraulic pulper also includes auxiliary equipment for removing impurities in waste paper.
  • the auxiliary equipment in this embodiment includes The slag machine, the rope winch, the rope cutter, the hydraulic slag cleaner and the cylindrical screen improve the quality of the slurry.
  • the sizing machine is a film transfer type sizing machine or an immersion sizing machine.
  • the aluminum sulfate is liquid aluminum sulfate with a pH of 3.5 to 5.0, and a content of aluminum oxide of 10 to 15%.
  • the AKD is a liquid solution with a solid content of 15.0 to 17.0% and a pH of 2.0 to 4.0.
  • the surface sizing agent is a styrene-acrylic type surface sizing agent with a solid content of 29.0-32.0% and a PH value of 2.0-4.0.
  • the retention aid is a solid retention aid PAM, or a solid retention aid and a liquid A composition of a retention aid, or a composition of a solid retention aid, a liquid retention aid and bentonite, wherein the starch gum solution has a concentration of 8-15% and a temperature of 65-75°C.
  • 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.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

一种高抗水性箱板纸的生产方法，依次包括以下步骤：碎解、除砂、一段粗筛、分级筛、浆料制备、面层制备、衬层制备、芯层制备、底层制备、网部复合、压榨、烘干、压光、卷纸；在生产方法过程中依次加入了硫酸铝、AKD和助留剂，表面施胶时加入淀粉胶液、硫酸铝、表面施胶剂，提升了成纸的强度。

Description

一种高抗水性箱板纸的生产方法 技术领域
本发明涉及一种高抗水性箱板纸的生产方法。
背景技术
在我国新的形势下，随着社会进步和人们消费观念的改变，各种高端的水果、海鲜、蔬菜需要进行冷藏储存、运输等，储存环境湿度高，纸箱存放在冷库中就容易吸潮，造成塌箱。再者，在长江中下游地区每年将经历梅雨季节，环境湿度高，纸箱也容易吸潮造成塌箱，纸箱的抗压强度下降，不利于冷藏储存和运输。
发明内容
本发明所要达到的目的就是提供一种高抗水性箱板纸的生产方法，解决现有纸箱抗水性能低导致纸箱吸潮塌箱的技术问题。
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：一种高抗水性箱板纸的生产方法，包括纸张本体，由上至下纸张本体依次包括面层、衬层、芯层和底层，所述纸张本体包括0～50％的进口废纸和50～100％的国内废纸制成，所述生产方法依次包括以下步骤：
步骤一：碎解：将进口废纸和国内废纸依次通过链板机投入水力碎浆机中加水进行碎解形成浆料，浆料的质量百分比浓度为4～6％；
步骤二：除砂：将步骤一碎解后的浆料通过泵送入高浓除砂器内进行除砂处理；
步骤三：一段粗筛：将步骤二除砂后的浆料通过卸料浆塔进行卸料处理，并对浆料进行粗筛处理；
步骤四：分级筛：将步骤三粗筛处理后的浆料通过纤维分级筛分成长纤维、中纤维和短纤维；
步骤五：浆料制备：将步骤四筛选后的短纤维经过多圆盘浓缩机浓缩后形成质量浓度为3.5～4.5％的短纤维浆料，将步骤四筛选后的中纤维浆料经过逆向低浓轻质除砂器处理，再经过多圆盘浓缩机浓缩后经双盘磨磨浆处理后形成质量浓度为3.5～4.5％的中纤维浆料，将步骤四筛选后的长纤维浆料经过多圆盘浓缩机浓缩后进行热分散系统处理，后经双盘磨磨浆处理后形成质量浓度为3.5～4.5％的长纤维浆料；
步骤六：面层制备：将步骤五制备长纤维浆料依次经过面浆配浆池、面浆上浆池、面层机外白水槽、面层压力筛、面层流浆箱、面网制备形成面层，且在面浆上浆池内加入硫酸铝，每吨面层浆料内加入的硫酸铝的重量为5～15kg,在面层机外白水槽内加入AKD，每吨面层浆料内加入的AKD的重量为15～30kg，在面层压力筛前加入助留剂，每吨面层浆料内加入的助留剂的重量为0.3～0.5K；
步骤七：衬层制备：将步骤五制备的中纤维浆料依次经过衬浆配浆池、衬浆上浆池、衬层机外白水槽、衬层压力筛、衬层流浆箱、衬网制备形成衬层，且在衬浆上浆池内加入硫酸铝，每吨衬层浆料内加入的硫酸铝的重量为10～20kg,在衬层机外白水槽内加入AKD，每吨衬层浆料内加入的AKD的重量为15～ 30kg，在衬层压力筛前加入助留剂，每吨衬层浆料内加入的助留剂的重量为0.3～0.5Kg；
步骤八：芯层制备：将步骤五制备的短纤维浆料依次经过芯浆配浆池、芯浆上浆池、芯层机外白水槽、芯层压力筛、芯层流浆箱、芯网制备形成芯层，且在芯浆上浆池内加入硫酸铝，每吨芯层浆料内加入的硫酸铝的重量为3～10kg,在芯层压力筛前加入助留剂，在芯层压力筛前加入助留剂每吨芯层浆料内加入的助留剂的重量为0.2～0.5Kg；
步骤九：底层制备：将步骤五制备的长纤维浆料和中纤维浆料经过底浆配浆池混合，且各组分的质量比为：长纤维浆料50～100％和中纤维浆料0～50％，再依次经过底浆上浆池、底层机外白水槽、底层压力筛、底层流浆箱制备形成底层，且在底浆上浆池内加入硫酸铝，每吨底层浆料内加入的硫酸铝的重量为10～20kg,在底层机外白水槽内加入AKD，每吨底层浆料内加入的AKD的重量为10～25kg，在底层压力筛前加入助留剂，在底层压力筛前加入助留剂每吨衬层浆料内加入的助留剂的重量为0.22～0.45K；
步骤十：网部复合：将步骤六制备的面层、步骤七制备的衬层、步骤八制备的芯层、步骤九制备的底层通过复合辊进行复合，经高真空吸水箱、真空伏辊脱水处理形成湿纸张；
步骤十一：压榨：将步骤十成型后的纸张经过大辊径压榨、靴式压榨使纸张进一步脱水，靴式压榨的线压力为1200～1500N/cm，出压榨干度为48～50％；
步骤十二：烘干：将步骤十一压榨后的纸张进入烘缸进行第一次烘干干燥 处理，并在第一次烘干处理后的底层和面层使用表面施胶机进行表面处理，表面处理包括硫酸铝、表面施胶剂、由淀粉制备的淀粉胶液，每平米纸张内加入的硫酸铝和表面施胶剂的重量均为0.2～0.35g，每平米纸张内加入的淀粉为2～5g；并将表面处理后的纸张进入烘缸内进行二次烘干干燥处理；
步骤十三：压光：将步骤十二烘干后的纸张进入热辊软压光机进行压光出料，压光机的上辊为热辊，下辊为可控中高辊且外包高强度聚胺脂，上辊的温度为145～155℃，加压线压力为40～60KN/m；
步骤十四：卷纸：将步骤十三压光后的纸张通过收卷机进行卷取并进行分切处理。
优选的，步骤一中的所述水力碎浆机的槽体平面形状为“D”型。
优选的，所述水力碎浆机还包括用于去除废纸中的杂质的辅助设备。
优选的，所述硫酸铝为液体硫酸铝，且PH为3.5～5.0，氧化铝的含量为10～15％，所述AKD为液体溶液，固体含量为15.0～17.0％，其PH值为2.0～4.0，所述表面施胶剂为苯丙型表面施胶剂，固体含量为29.0～32.0％，PH值为2.0～4.0，所述助留剂为固体助留剂PAM，或固体助留剂与液体助留剂的组合物，或固体助留剂、液体助留剂与膨润土的组合物，所述淀粉胶液浓度为8～15％，温度为65～75℃。
优选的，所述施胶机为膜转移形式施胶机或浸渍式施胶机。
综上所述，本发明的优点：1.本发明通过碎解、除砂、一段粗筛、分级筛、浆料制备、面层制备、衬层制备、芯层制备、底层制备、网部复合、压榨、烘 干、压光、卷纸的生产方法制备而成的箱板纸，由于在纸张本体的面层、衬层、芯层、底层制备过程中依次加入了硫酸铝、AKD和助留剂，助留剂能提升细小纤维、硫酸铝、AKD的纸页上的留着率，减少流失。AKD在硫酸铝的“架桥”作用下能与纤维结合，并在烘缸的高温下使纤维形成抗水性能，形成网络耐水结构。一般面层的定量较低，衬层的AKD可以弥补面层因挂浆量少导致的部分区域的抗水薄弱点。在表面处理时，淀粉胶液、硫酸铝、表面施胶剂混合后的溶液，在表面施胶辊的挤压下，溶液渗透到纸页的内部，缩小了纤维的间距，增加了纤维间的氢键结合，填补了纤维与纤维间的空隙，从而提升了成纸的强度。表面处理时的硫酸铝与纤维表面的阴离子中和，促进了表面施胶剂与纤维的结合，并促进施胶剂的熟化反应，填补了浆内施胶留下的纤维与纤维间空隙的抗水薄弱点，提高了箱板纸抗水性能。确保了面、底层具有抗水性能强、强度高的特点，且表面无透水的空隙，使得水分难以渗透到纸页内部，且整体生产工艺简单成本低。经本工艺生产的箱板纸，可以在常温浇水达到10分钟无渗透点的抗水效果，另外，纸张本体通过0～50％的进口废纸和50～100％的国内废纸制成，且整体生产工艺简单成本低，有效的降低了生产成本，节约了原材料，且实现了进口废纸和国内废纸的回收利用，具有良好的环境效益及社会效益；
2.步骤十一中采用的靴式压榨，与传统压榨相比，靴式压榨将辊式压榨的瞬时动态脱水，改为静压下的长时间宽压区脱水，靴形压榨的压区宽度为传统压区的6～10倍，由于该特性，在相同的车速条件下，纸页在靴形压区的停留时间即为传统辊式压区的6～10倍。同时，靴形压榨采用大大高于传统的辊压 线压力，有助于提高纸页脱水效率，更有利于纸幅的固化，使纸张获得更好的强度和松厚度，提高产品性能，压光步骤利用了纤维的热可塑性，对纸页表面进行整饰纸，提高平滑度；下辊上设有的高强度聚胺脂，保证纸页松厚度。
具体实施方式
一种高抗水性箱板纸的生产方法，包括纸张本体，由上至下纸张本体依次包括面层、衬层、芯层和底层，所述纸张本体包括0～50％的进口废纸和50～100％的国内废纸制成，所述生产方法依次包括以下步骤：
步骤一：碎解：将进口废纸和国内废纸依次通过链板机投入水力碎浆机中加水进行碎解形成浆料，浆料的质量百分比浓度为4～6％；
步骤二：除砂：将步骤一碎解后的浆料通过泵送入高浓除砂器内进行除砂处理；
步骤三：一段粗筛：将步骤二除砂后的浆料通过卸料浆塔进行卸料处理，并对浆料进行粗筛处理；
步骤四：分级筛：将步骤三粗筛处理后的浆料通过纤维分级筛分成长纤维、中纤维和短纤维；
步骤五：浆料制备：将步骤四筛选后的短纤维经过多圆盘浓缩机浓缩后形成质量浓度为3.5～4.5％的短纤维浆料，将步骤四筛选后的中纤维浆料经过逆向低浓轻质除砂器处理，再经过多圆盘浓缩机浓缩后经双盘磨磨浆处理后形成质量浓度为3.5～4.5％的中纤维浆料，将步骤四筛选后的长纤维浆料经过多圆盘浓缩机浓缩后进行热分散系统处理，后经双盘磨磨浆处理后形成质量浓度为3.5～ 4.5％的长纤维浆料；
步骤六：面层制备：将步骤五制备长纤维浆料依次经过面浆配浆池、面浆上浆池、面层机外白水槽、面层压力筛、面层流浆箱、面网制备形成面层，且在面浆上浆池内加入硫酸铝，每吨面层浆料内加入的硫酸铝的重量为5～15kg,在面层机外白水槽内加入AKD，每吨面层浆料内加入的AKD的重量为15～30kg，在面层压力筛前加入助留剂，每吨面层浆料内加入的助留剂的重量为0.3～0.5K；
步骤七：衬层制备：将步骤五制备的中纤维浆料依次经过衬浆配浆池、衬浆上浆池、衬层机外白水槽、衬层压力筛、衬层流浆箱、衬网制备形成衬层，且在衬浆上浆池内加入硫酸铝，每吨衬层浆料内加入的硫酸铝的重量为10～20kg,在衬层机外白水槽内加入AKD，每吨衬层浆料内加入的AKD的重量为15～30kg，在衬层压力筛前加入助留剂，每吨衬层浆料内加入的助留剂的重量为0.3～0.5Kg；
步骤八：芯层制备：将步骤五制备的短纤维浆料依次经过芯浆配浆池、芯浆上浆池、芯层机外白水槽、芯层压力筛、芯层流浆箱、芯网制备形成芯层，且在芯浆上浆池内加入硫酸铝，每吨芯层浆料内加入的硫酸铝的重量为3～10kg,在芯层压力筛前加入助留剂，在芯层压力筛前加入助留剂每吨芯层浆料内加入的助留剂的重量为0.2～0.5Kg；
步骤九：底层制备：将步骤五制备的长纤维浆料和中纤维浆料经过底浆配浆池混合，且各组分的质量比为：长纤维浆料50～100％和中纤维浆料0～50％， 再依次经过底浆上浆池、底层机外白水槽、底层压力筛、底层流浆箱制备形成底层，且在底浆上浆池内加入硫酸铝，每吨底层浆料内加入的硫酸铝的重量为10～20kg,在底层机外白水槽内加入AKD，每吨底层浆料内加入的AKD的重量为10～25kg，在底层压力筛前加入助留剂，在底层压力筛前加入助留剂每吨衬层浆料内加入的助留剂的重量为0.22～0.45K；
步骤十：网部复合：将步骤六制备的面层、步骤七制备的衬层、步骤八制备的芯层、步骤九制备的底层通过复合辊进行复合，经高真空吸水箱、真空伏辊脱水处理形成湿纸张；
步骤十一：压榨：将步骤十成型后的纸张经过大辊径压榨、靴式压榨使纸张进一步脱水，靴式压榨的线压力为1200～1500N/cm，出压榨干度为48～50％；
步骤十二：烘干：将步骤十一压榨后的纸张进入烘缸进行第一次烘干干燥处理，并在第一次烘干处理后的底层和面层使用表面施胶机进行表面处理，表面处理包括硫酸铝、表面施胶剂、由淀粉制备的淀粉胶液，每平米纸张内加入的硫酸铝和表面施胶剂的重量均为0.2～0.35g，每平米纸张内加入的淀粉为2～5g；并将表面处理后的纸张进入烘缸内进行二次烘干干燥处理；
步骤十三：压光：将步骤十二烘干后的纸张进入热辊软压光机进行压光出料，压光机的上辊为热辊，下辊为可控中高辊且外包高强度聚胺脂，上辊的温度为145～155℃，加压线压力为40～60KN/m；
步骤十四：卷纸：将步骤十三压光后的纸张通过收卷机进行卷取并进行分切处理。
本发明通过碎解、除砂、一段粗筛、分级筛、浆料制备、面层制备、衬层制备、芯层制备、底层制备、网部复合、压榨、烘干、压光、卷纸的生产方法制备而成的箱板纸，由于在纸张本体的面层、衬层、芯层、底层制备过程中依次加入了硫酸铝、AKD和助留剂，助留剂能提升细小纤维、硫酸铝、AKD的纸页上的留着率，减少流失。AKD在硫酸铝的“架桥”作用下能与纤维结合，并在烘缸的高温下使纤维形成抗水性能，形成网络耐水结构。一般面层的定量较低，衬层的AKD可以弥补面层因挂浆量少导致的部分区域的抗水薄弱点。在表面处理时，淀粉胶液、硫酸铝、表面施胶剂混合后的溶液，在表面施胶辊的挤压下，溶液渗透到纸页的内部，缩小了纤维的间距，增加了纤维间的氢键结合，填补了纤维与纤维间的空隙，从而提升了成纸的强度。表面处理时的硫酸铝与纤维表面的阴离子中和，促进了表面施胶剂与纤维的结合，并促进施胶剂的熟化反应，填补了浆内施胶留下的纤维与纤维间空隙的抗水薄弱点，提高了箱板纸抗水性能。确保了面、底层具有抗水性能强、强度高的特点，且表面无透水的空隙，使得水分难以渗透到纸页内部，且整体生产工艺简单成本低。经本工艺生产的箱板纸，可以在常温浇水达到10分钟无渗透点的抗水效果，另外，纸张本体通过0～50％的进口废纸和50～100％的国内废纸制成，且整体生产工艺简单成本低，有效的降低了生产成本，节约了原材料，且实现了进口废纸和国内废纸的回收利用，具有良好的环境效益及社会效益；
步骤十一中采用的靴式压榨，与传统压榨相比，靴式压榨将辊式压榨的瞬时动态脱水，改为静压下的长时间宽压区脱水，靴形压榨的压区宽度为传统压 区的6～10倍，由于该特性，在相同的车速条件下，纸页在靴形压区的停留时间即为传统辊式压区的6～10倍。同时，靴形压榨采用大大高于传统的辊压线压力，有助于提高纸页脱水效率，更有利于纸幅的固化，使纸张获得更好的强度和松厚度，提高产品性能，压光步骤利用了纤维的热可塑性，对纸页表面进行整饰纸，提高平滑度；下辊上设有的高强度聚胺脂，保证纸页松厚度。
步骤一中的所述水力碎浆机的槽体平面形状为“D”型，“D”型的槽体结构，能改变浆料在槽体内的流动路径，从而形成湍流，增加了废纸间的摩擦力，提高了纤维分离和碎解效率，另外，在所述水力碎浆机还包括用于去除废纸中的杂质的辅助设备，而根据不同的杂质，本实施例中的辅助设备包括沉渣机、绞绳机、切绳机、水力清渣机和圆筒筛，提高了浆料的质量，所述施胶机为膜转移形式施胶机或浸渍式施胶机。
另外，所述硫酸铝为液体硫酸铝，且PH为3.5～5.0，氧化铝的含量为10～15％，所述AKD为液体溶液，固体含量为15.0～17.0％，其PH值为2.0～4.0，所述表面施胶剂为苯丙型表面施胶剂，固体含量为29.0～32.0％，PH值为2.0～4.0，所述助留剂为固体助留剂PAM，或固体助留剂与液体助留剂的组合物，或固体助留剂、液体助留剂与膨润土的组合物，所述淀粉胶液浓度为8～15％，温度为65～75℃。
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。

Claims (5)

  1. 一种高抗水性箱板纸的生产方法，包括纸张本体，由上至下纸张本体依次包括面层、衬层、芯层和底层，所述纸张本体包括0～50％的进口废纸和50～100％的国内废纸制成，其特征在于：所述生产方法依次包括以下步骤：
    步骤一：碎解：将进口废纸和国内废纸依次通过链板机投入水力碎浆机中加水进行碎解形成浆料，浆料的质量百分比浓度为4～6％；
    步骤二：除砂：将步骤一碎解后的浆料通过泵送入高浓除砂器内进行除砂处理；
    步骤三：一段粗筛：将步骤二除砂后的浆料通过卸料浆塔进行卸料处理，并对浆料进行粗筛处理；
    步骤四：分级筛：将步骤三粗筛处理后的浆料通过纤维分级筛分成长纤维、中纤维和短纤维；
    步骤五：浆料制备：将步骤四筛选后的短纤维经过多圆盘浓缩机浓缩后形成质量浓度为3.5～4.5％的短纤维浆料，将步骤四筛选后的中纤维浆料经过逆向低浓轻质除砂器处理，再经过多圆盘浓缩机浓缩后经双盘磨磨浆处理后形成质量浓度为3.5～4.5％的中纤维浆料，将步骤四筛选后的长纤维浆料经过多圆盘浓缩机浓缩后进行热分散系统处理，后经双盘磨磨浆处理后形成质量浓度为3.5～4.5％的长纤维浆料；
    步骤六：面层制备：将步骤五制备长纤维浆料依次经过面浆配浆池、面浆上浆池、面层机外白水槽、面层压力筛、面层流浆箱、面网制备形成面层，且在面浆上浆池内加入硫酸铝，每吨面层浆料内加入的硫酸铝的重量为5～ 15kg,在面层机外白水槽内加入AKD，每吨面层浆料内加入的AKD的重量为15～30kg，在面层压力筛前加入助留剂，每吨面层浆料内加入的助留剂的重量为0.3～0.5K；
    步骤七：衬层制备：将步骤五制备的中纤维浆料依次经过衬浆配浆池、衬浆上浆池、衬层机外白水槽、衬层压力筛、衬层流浆箱、衬网制备形成衬层，且在衬浆上浆池内加入硫酸铝，每吨衬层浆料内加入的硫酸铝的重量为10～20kg,在衬层机外白水槽内加入AKD，每吨衬层浆料内加入的AKD的重量为15～30kg，在衬层压力筛前加入助留剂，每吨衬层浆料内加入的助留剂的重量为0.3～0.5Kg；
    步骤八：芯层制备：将步骤五制备的短纤维浆料依次经过芯浆配浆池、芯浆上浆池、芯层机外白水槽、芯层压力筛、芯层流浆箱、芯网制备形成芯层，且在芯浆上浆池内加入硫酸铝，每吨芯层浆料内加入的硫酸铝的重量为3～10kg,在芯层压力筛前加入助留剂，在芯层压力筛前加入助留剂每吨芯层浆料内加入的助留剂的重量为0.2～0.5Kg；
    步骤九：底层制备：将步骤五制备的长纤维浆料和中纤维浆料经过底浆配浆池混合，且各组分的质量比为：长纤维浆料50～100％和中纤维浆料0～50％，再依次经过底浆上浆池、底层机外白水槽、底层压力筛、底层流浆箱制备形成底层，且在底浆上浆池内加入硫酸铝，每吨底层浆料内加入的硫酸铝的重量为10～20kg,在底层机外白水槽内加入AKD，每吨底层浆料内加入的AKD的重量为10～25kg，在底层压力筛前加入助留剂，在底层压力 筛前加入助留剂每吨衬层浆料内加入的助留剂的重量为0.22～0.45K；
    步骤十：网部复合：将步骤六制备的面层、步骤七制备的衬层、步骤八制备的芯层、步骤九制备的底层通过复合辊进行复合，经高真空吸水箱、真空伏辊脱水处理形成湿纸张；
    步骤十一：压榨：将步骤十成型后的纸张经过大辊径压榨、靴式压榨使纸张进一步脱水，靴式压榨的线压力为1200～1500N/cm，出压榨干度为48～50％；
    步骤十二：烘干：将步骤十一压榨后的纸张进入烘缸进行第一次烘干干燥处理，并在第一次烘干处理后的底层和面层使用表面施胶机进行表面处理，表面处理包括硫酸铝、表面施胶剂、由淀粉制备的淀粉胶液，每平米纸张内加入的硫酸铝和表面施胶剂的重量均为0.2～0.35g，每平米纸张内加入的淀粉为2～5g；并将表面处理后的纸张进入烘缸内进行二次烘干干燥处理；
    步骤十三：压光：将步骤十二烘干后的纸张进入热辊软压光机进行压光出料，压光机的上辊为热辊，下辊为可控中高辊且外包高强度聚胺脂，上辊的温度为145～155℃，加压线压力为40～60KN/m；
    步骤十四：卷纸：将步骤十三压光后的纸张通过收卷机进行卷取并进行分切处理。
  2. 根据权利要求1所述的一种高抗水性箱板纸的生产方法，其特征在于:步骤一中的所述水力碎浆机的槽体平面形状为“D”型。
  3. 根据权利要求3所述的一种高抗水性箱板纸的生产方法，其特征在于:所述水力碎浆机还包括用于去除废纸中的杂质的辅助设备。
  4. 根据权利要求1所述的一种高抗水性箱板纸的生产方法，其特征在于:所述硫酸铝为液体硫酸铝，且PH为3.5～5.0，氧化铝的含量为10～15％，所述AKD为液体溶液，固体含量为15.0～17.0％，其PH值为2.0～4.0，所述表面施胶剂为苯丙型表面施胶剂，固体含量为29.0～32.0％，PH值为2.0～4.0，所述助留剂为固体助留剂PAM，或固体助留剂与液体助留剂的组合物，或固体助留剂、液体助留剂与膨润土的组合物，所述淀粉胶液浓度为8～15％，温度为65～75℃。
  5. 根据权利要求1所述的一种高抗水性箱板纸的生产方法，其特征在于:所述施胶机为膜转移形式施胶机或浸渍式施胶机。
PCT/CN2019/129644 2019-03-08 2019-12-28 一种高抗水性箱板纸的生产方法 WO2020181886A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910176708.5 2019-03-08
CN201910176708.5A CN110042692A (zh) 2019-03-08 2019-03-08 一种高抗水性箱板纸的生产方法

Publications (1)

Publication Number Publication Date
WO2020181886A1 true WO2020181886A1 (zh) 2020-09-17

Family

ID=67274557

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/129644 WO2020181886A1 (zh) 2019-03-08 2019-12-28 一种高抗水性箱板纸的生产方法

Country Status (3)

Country Link
CN (1) CN110042692A (zh)
MY (1) MY204172A (zh)
WO (1) WO2020181886A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116770643A (zh) * 2023-06-16 2023-09-19 嘉兴市荣晟包装材料有限公司 一种瓦楞纸板及其瓦楞纸板包装箱

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110042692A (zh) * 2019-03-08 2019-07-23 浙江景兴纸业股份有限公司 一种高抗水性箱板纸的生产方法
CN111021129A (zh) * 2019-11-19 2020-04-17 山鹰华南纸业有限公司 一种箱板纸及其制备工艺
CN111926611A (zh) * 2020-08-10 2020-11-13 玖龙纸业(天津)有限公司 一种牛卡纸的制浆方法
CN111945471A (zh) * 2020-08-10 2020-11-17 玖龙纸业(天津)有限公司 一种平滑度高的牛卡纸的生产方法
CN111945467A (zh) * 2020-08-10 2020-11-17 玖龙纸业(天津)有限公司 一种低克重高强度牛卡纸及其生产方法
CN113605130B (zh) * 2021-07-15 2023-11-07 东莞市金田纸业有限公司 一次成型纸板成型装置及成型方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878659A (zh) * 2015-06-11 2015-09-02 吉安集团有限公司 一种灰底白板纸及其制备方法
CN106948208A (zh) * 2017-03-09 2017-07-14 华南理工大学 一种环保低定量灰底白板纸及其制备方法
CN107460785A (zh) * 2017-07-12 2017-12-12 浙江景兴纸业股份有限公司 一种环保挂面纸及其生产方法
CN107642003A (zh) * 2017-09-04 2018-01-30 江苏理文造纸有限公司 一种新型环保牛皮箱板纸的制造方法
CN110042692A (zh) * 2019-03-08 2019-07-23 浙江景兴纸业股份有限公司 一种高抗水性箱板纸的生产方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106049176B (zh) * 2016-07-15 2018-04-03 东莞顺裕纸业有限公司 高强瓦楞芯纸的表面施胶工艺
CN106087521B (zh) * 2016-07-29 2017-10-27 联盛纸业（龙海）有限公司 一种使用occ浆替代dip浆生产高级涂布灰底白板纸的生产方法
CN106223090B (zh) * 2016-07-29 2017-12-15 联盛纸业（龙海）有限公司 一种木片热磨浆替代occ配抄高档单面涂布灰底白板纸的生产方法
CN107268311B (zh) * 2017-06-20 2019-02-12 台州森林造纸有限公司 一种采用废纸生产箱板纸印刷层的生产工艺
CN107460784A (zh) * 2017-07-12 2017-12-12 浙江景兴纸业股份有限公司 一种回收再使用的箱板纸生产方法
CN208038917U (zh) * 2018-02-06 2018-11-02 玖龙纸业（泉州）有限公司 一种造纸过程中的施胶系统
CN108824062B (zh) * 2018-08-15 2021-03-02 联盛纸业（龙海）有限公司 一种occ浆替代onp浆生产涂布白板纸的生产方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878659A (zh) * 2015-06-11 2015-09-02 吉安集团有限公司 一种灰底白板纸及其制备方法
CN106948208A (zh) * 2017-03-09 2017-07-14 华南理工大学 一种环保低定量灰底白板纸及其制备方法
CN107460785A (zh) * 2017-07-12 2017-12-12 浙江景兴纸业股份有限公司 一种环保挂面纸及其生产方法
CN107642003A (zh) * 2017-09-04 2018-01-30 江苏理文造纸有限公司 一种新型环保牛皮箱板纸的制造方法
CN110042692A (zh) * 2019-03-08 2019-07-23 浙江景兴纸业股份有限公司 一种高抗水性箱板纸的生产方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116770643A (zh) * 2023-06-16 2023-09-19 嘉兴市荣晟包装材料有限公司 一种瓦楞纸板及其瓦楞纸板包装箱

Also Published As

Publication number Publication date
MY204172A (en) 2024-08-13
CN110042692A (zh) 2019-07-23

Similar Documents

Publication Publication Date Title
WO2020181886A1 (zh) 一种高抗水性箱板纸的生产方法
CN107254797B (zh) 一种石膏板护面纸上纸及下纸的生产工艺
CN101565913A (zh) 一种超低克重高强瓦楞原纸生产方法
CN101372822B (zh) 格拉辛原纸的生产方法
CN107642003A (zh) 一种新型环保牛皮箱板纸的制造方法
CN103451990B (zh) 一种c级涂布水转印底纸原纸造纸工艺
CN104631196A (zh) 一种单层超低克重挂面箱板纸生产方法
CN108468248A (zh) 一种食盐包装纸的制造方法
CN102587192A (zh) 一种耐高温型离型纸及其制备方法
CN110512457B (zh) 一种防油淋膜原纸的制造方法
CN111364268A (zh) 一种低定量中隔纸的生产工艺
CN102191728B (zh) 一种高强度包装纸的制备工艺
CN108755239A (zh) 提高纸管原纸层间结合强度的生产方法
CN106894291A (zh) 一种玻璃隔离纸的制造方法
CN102979008A (zh) 一种原纸及其制备方法及一种牛卡纸
CN111945468A (zh) 一种牛卡纸及其生产方法
CN102733252A (zh) 一种废箱板纸生产育果袋外袋纸的方法
CN205917526U (zh) 一种防潮瓦楞纸的生产系统
CN204023297U (zh) 纱管纸生产系统
CN102704318A (zh) 一种铝箔衬纸的生产工艺
CN107460785A (zh) 一种环保挂面纸及其生产方法
CN104195877A (zh) 一种黄色卡纸及其制造方法
CN104631201A (zh) 一种废纸回用生产低克重高强度重型包装牛卡纸的工艺
CN106868925A (zh) 一种高强高填料纸张及其制备方法
CN104099798B (zh) 一种白板纸的生产工艺

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19919058

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19919058

Country of ref document: EP

Kind code of ref document: A1