CN106400578A - Preparation method of office paper with effect of moisture prevention - Google Patents

Preparation method of office paper with effect of moisture prevention Download PDF

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Publication number
CN106400578A
CN106400578A CN201610887714.8A CN201610887714A CN106400578A CN 106400578 A CN106400578 A CN 106400578A CN 201610887714 A CN201610887714 A CN 201610887714A CN 106400578 A CN106400578 A CN 106400578A
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China
Prior art keywords
paper
slurry
page
ton paper
wood pulp
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Pending
Application number
CN201610887714.8A
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Chinese (zh)
Inventor
韦克
许正茂
雷江波
张朝辉
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ASIA SYMBOL (GUANGDONG) PAPER Co Ltd
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ASIA SYMBOL (GUANGDONG) PAPER Co Ltd
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Priority to CN202010745520.0A priority Critical patent/CN111851131A/en
Priority to CN201610887714.8A priority patent/CN106400578A/en
Publication of CN106400578A publication Critical patent/CN106400578A/en
Pending legal-status Critical Current

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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
    • 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
    • D21H15/10—Composite fibres
    • 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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • 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
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical 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
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate 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
    • 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
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • 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
    • D21H17/29—Starch cationic
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • 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
    • 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
    • D21H21/12—Defoamers
    • 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
    • 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
    • D21H21/28—Colorants ; Pigments or opacifying agents
    • 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
    • D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
    • 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
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Paper (AREA)

Abstract

The invention discloses a preparation method of an office paper with the effect of moisture prevention. The preparation method comprises (1) slurry breaking and slag removal, (2) beating, (3) slurry blending and purification, (4) net molding, (5) squeezing dehydration, (6) paper predrying, (7) paper surface treatment, (8) paper after drying, and (9) paper soft calendering treatment. The method solves the problem of high-grade office paper moistening caused by the weather during the use, improves paper machining performances in copying and printing in the wet weather, and reduces paper warpage and blocking.

Description

A kind of preparation method of the paper in the office with moisture effect
Technical field
The invention belongs to pulp technology for making paper is and in particular to a kind of preparation method of the paper in the office with moisture effect.
Background technology
Normal office uses common alkenyl succinic anhydride applying glue with paper, becomes paper water repelling property general, wet weather is easily inhaled Tide.Become paper moisture control higher, be unfavorable for keeping paper to be dried, print in wet weather, copying process is also easy to produce warpage, card The problems such as paper, is so that efficiency reduces.Normal office paper manufactures paper with pulp process generally with precipitated calcium carbonate or powdered whiting in page It is filled with, the too high amount of being filled with, office equipment can be produced with certain abrasion, and with being filled with powdered whiting slurry, make into paper bulky Degree is relatively low, crosses machine poor performance.In existing paper making process, warpage to paper, printing adaptability evaluation criteria complete or Specific aim is by force it is impossible to meet the requirement of paper higher quality.
Content of the invention
It is an object of the invention to overcoming the weak point that prior art exists and providing and a kind of there is doing of moisture effect The preparation method of public paper, solves during paper in the office uses because the paper that weather reason leads to gets damp problem.
For achieving the above object, the technical scheme taken：A kind of preparation method of the paper in the office with moisture effect, Described preparation method comprises the following steps：
(1) slurry size degradation and slagging-off：Long and short fiber sulfuric acid salt wood pulp and chemi-mechanical pulp are pressed respectively 5% quality hundred Divide specific concentration size degradation, then remove the impurity of heavy in slurry；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt wood pulp after making beating and chemi-mechanical pulp are pressed long fibre sulphur Hydrochlorate wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood Slurry：Chemi-mechanical pulp=10～20：65～75：10～15 ratio is with slurry, disposed slurry with slurry through scummer, deaerator, and Slotted screen processes after removing impurity and surfs the Net；
(4) upper net forming：It is warp after 1.0～2.0% that slurry with water after processing in step (3) is diluted to mass concentration Cross head box online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described paper Page mass dryness fraction is 23～25%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 48～52%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 95～ 97%；
(7) page surface is processed：Top sizing process is carried out using the page that surface size obtains to step (6), applies The every face of glue amount 1.0～1.2g/m2, wherein, surface size comprises anti-blushing agent 0.2～0.4kg/ ton paper；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying is to moisture For 3.5～4.5%；
(9) page soft calendaring is processed：Soft calendaring process is carried out using the page that crown controlled roll obtains to step (8), soft Press polish on-load pressure is 20～30KN/m, and soft calendaring obtains described paper in the office after processing.
Long fibre sulfate wood pulp, chopped fiber sulfate wood pulp are high intensity, the bleached chemical import long fibre of high whiteness Sulfate wood pulp, chopped fiber sulfate wood pulp, the use of high-quality wood pulp ensure that paper strength is high, and deflection is high, crosses machine performance Good.Strictly control into paper moisture content, keep paper to be dried, top sizing adds industrial anti-blushing agent, improve paper further Water repelling property, reduces moisture absorption.
Preferably, after making beating in described step (2), long fibre sulfate wood pulp freedom controls in 300～400CFS, short Fiber sulfuric acid salt wood pulp freedom controls in 280～380CFS.
Preferably, add, when with slurry in described step (3), the weight accounting for described paper in the office quality 10～14% in the slurry Matter calcium carbonate, the precipitated calcium carbonate accounting for described paper in the office quality 10～14%, the cationic starch of 5～7kg/ ton paper, 2～ The brightening agent of 6kg/ ton paper, the pigment of 0～200g/ ton paper, the alkenyl succinic anhydride of 0.8～1.2kg/ ton paper, 0.2～0.4kg/ Ton paper polyacrylamide, the bentonite of 2～4kg/ ton paper, the particulate of 0.2～0.4kg/ ton paper, the disappearing of 0.3～0.5kg/ ton paper Infusion and the bactericide of 0.3～0.5kg/ ton paper.Here concentration is for paper in the office quality.
The new 100%C of internal sizing agent18The more preferable alkenyl succinic anhydride of content, sizing efficiency substitutes common thiazolinyl Succinyl oxide, improves the water repelling property of paper further, reduces moisture absorption.High whiteness powdered whiting and precipitated calcium carbonate according to Certain proportion mixing conduct is filled with material, it is ensured that paper has higher bulky while ensureing Paper White Degree, smoothness Degree, improves the generation crossed machine performance, reduce paperboard of paper.
Preferably, in described step (7), surface size also comprises the component of following concentration：30～40kg/ ton paper former Starch, the sizing agent of 2～4kg/ ton paper, the brightening agent of 4～8kg/ ton paper, the salt of 2～4kg/ ton paper.Table using good film-forming property Surface sizing agent, can form complete waterproof membrane.Here concentration is for paper in the office quality.
Preferably, described particulate is PAMA.
Preferably, in described step (7) anti-blushing agent be converted starch and acrylamide grafted copolymer mixture or Polythene wax emulsion.
The beneficial effects of the present invention is：The invention provides a kind of preparation side of the paper in the office with moisture effect Method.This technical scheme introduces high-grade paper in the office production process moistureproof concept, and wet weather environment is to Paper Printing and duplicating During cross machine performance impact less.In addition this technical scheme uses high whiteness raw material of wood pulp, high whiteness powdered whiting and Precipitated calcium carbonate is as filler, and rationally controls the amount of being filled with, and the high protein germplasm smoothness of production is high, bulk is high, crosses machine Performance improves further, meets the demand of high-grade office space.
Brief description
Fig. 1 is the flow sheet of the paper in the office with moisture effect of the present invention.
Specific embodiment
For better illustrating the object, technical solutions and advantages of the present invention, below in conjunction with specific embodiments and the drawings pair The present invention is described further.
In embodiment, GCC is powdered whiting；PCC is precipitated calcium carbonate；ASA is alkenyl succinic anhydride；PAM is polypropylene Acid amides；Long fibre sulfate wood pulp is import Canada horse board bleached softwood slurry, import Canada dolphin board bleaching needle-point leaf pulp Or import Chile silver star bleaching needle-point leaf pulp；Chopped fiber sulfate wood pulp is Indonesia's leaflet yearning between lovers slurry, Shandong Rizhao Asia-Pacific is gloomy rich Yearning between lovers wood pulp, the gloomy rich mixed eucalyptus pulp of the gloomy rich pure eucalyptus pulp in Shandong Rizhao Asia-Pacific or Shandong Rizhao Asia-Pacific；Chemi-mechanical pulp is sky cypress The chemi-mechanical pulp of board, crystal board or knight's board.
Embodiment 1
A kind of embodiment of the preparation method of the paper in the office with moisture effect, as shown in Figure 1, described preparation method Comprise the following steps：
(1) slurry size degradation and slagging-off：The long and short fiber sulfuric acid salt wood pulp of import and chemi-mechanical pulp are pressed 5% respectively Mass percent concentration size degradation, then the mass percent concentration in long and short fiber sulfuric acid salt wood pulp and chemi-mechanical pulp is 4% When through HC Cleaner process, remove slurry in heavy impurity；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar, chopped fiber sulfate wood pulp freedom control after making beating In 300CFS, chopped fiber sulfate wood pulp freedom controls in about 280CFS system；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt wood pulp after making beating and chemi-mechanical pulp are pressed long fibre sulphur Hydrochlorate wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood Slurry：Chemi-mechanical pulp=20：65：15 ratio is with slurry, and disposed slurry with slurry is through scummer, deaerator, and slotted screen processes and removes Surf the Net after impurity；
(4) upper net forming：It is through excessively stream after 1.0% that slurry with water after processing in step (3) is diluted to mass concentration Slurry case online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described page is done Spend for 23%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 48%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 95%；
(7) page surface is processed：Top sizing process is carried out using the page that surface size obtains to step (6), applies Glue amount every face 1.0g/m2；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying is to moisture For 3.5%；
(9) page soft calendaring is processed：Soft calendaring process is carried out using the page that crown controlled roll obtains to step (8), soft Press polish on-load pressure is 20KN/m, and soft calendaring obtains described paper in the office after processing.
Wherein, add in the slurry when with slurry in described step (3) and account for the GCC of described paper in the office quality 10%, account for institute State the cationic starch of PCC, 5kg/ ton paper of paper in the office quality 10%, the brightening agent of 2kg/ ton paper, 0.8kg/ ton paper The bentonite of ASA, 0.2kg/ ton paper PAM, 2kg/ ton paper, the particulate of 0.2kg/ ton paper, the defoamer of 0.3kg/ ton paper and The bactericide of 0.3kg/ ton paper.
In described step (7), surface size includes the component of following concentration：The ative starch of 30kg/ ton paper, 0.2kg/ ton The anti-blushing agent of paper, the sizing agent of 2kg/ ton paper, the brightening agent of 4kg/ ton paper, the salt of 2kg/ ton paper.
Embodiment 2
A kind of embodiment of the preparation method of the paper in the office with moisture effect, as shown in Figure 1, described preparation method Comprise the following steps：
(1) slurry size degradation and slagging-off：By the high intensity of import, the long and short fiber sulfuric acid salt of high whiteness and chemi-mechanical pulp Press 5% mass percent concentration size degradation respectively, then in the percent mass of long and short fiber sulfuric acid salt wood pulp and chemi-mechanical pulp Specific concentration is to process through HC Cleaner when 4%, removes the impurity of heavy in slurry；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar, long fibre sulfate wood pulp freedom control after making beating In 400CFS, chopped fiber sulfate wood pulp freedom controls in about 380CFS system；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt wood pulp after making beating and chemi-mechanical pulp are pressed long fibre sulphur Hydrochlorate wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood Slurry：Chemi-mechanical pulp=10：75：15 ratio is with slurry, and disposed slurry with slurry is through scummer, deaerator, and slotted screen processes and removes Surf the Net after impurity；
(4) upper net forming：It is through excessively stream after 2.0% that slurry with water after processing in step (3) is diluted to mass concentration Slurry case online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described page is done Spend for 25%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 52%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 97%；
(7) page surface is processed：Top sizing process is carried out using the page that surface size obtains to step (6), applies Glue amount every face 1.2g/m2；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying is to moisture For 4.5%；
(9) page soft calendaring is processed：Soft calendaring process is carried out using the page that crown controlled roll obtains to step (8), soft Press polish on-load pressure is 30KN/m, and soft calendaring obtains described paper in the office after processing.
Wherein, add in the slurry when with slurry in described step (3) and account for the GCC of described paper in the office quality 14%, account for institute State the cationic starch of PCC, 7kg/ ton paper of paper in the office quality 14%, the brightening agent of 6kg/ ton paper, the face of 200g/ ton paper Material, the bentonite of ASA, 0.4kg/ ton paper PAM, 4kg/ ton paper of 1.2kg/ ton paper, the particulate of 0.4kg/ ton paper, 0.5kg/ ton paper Defoamer and 0.5kg/ ton paper bactericide.
In described step (7), surface size includes the component of following concentration：The ative starch of 40kg/ ton paper, 0.4kg/ ton The anti-blushing agent of paper, the sizing agent of 4kg/ ton paper, the brightening agent of 8kg/ ton paper, the salt of 4kg/ ton paper.
Embodiment 3
A kind of embodiment of the preparation method of the paper in the office with moisture effect, as shown in Figure 1, described preparation method Comprise the following steps：
(1) slurry size degradation and slagging-off：By the high intensity of import, the long and short fiber sulfuric acid salt of high whiteness and chemi-mechanical pulp Press 5% mass percent concentration size degradation respectively, then the warp when the mass percent concentration of long and short fiber sulfuric acid salt is 4% Cross HC Cleaner to process, remove the impurity of heavy in slurry；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar, long fibre sulfate wood pulp freedom control after making beating In 350CFS, chopped fiber sulfate wood pulp freedom controls in about 330CFS system；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt after making beating and chemi-mechanical pulp are pressed long fibre sulfate dimension Wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood pulp： Chemi-mechanical pulp=17：70：13 ratio is with slurry, and disposed slurry with slurry is through scummer, deaerator, and slotted screen processes and removes impurity After surf the Net；
(4) upper net forming：It is through excessively stream after 1.5% that slurry with water after processing in step (3) is diluted to mass concentration Slurry case online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described page is done Spend for 24%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 50%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 96%；
(7) page surface is processed：Top sizing process is carried out using the page that surface size obtains to step (6), applies Glue amount every face 1.1g/m2；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying is to moisture For 4%；
(9) page soft calendaring is processed：Soft calendaring process is carried out using the page that crown controlled roll obtains to step (8), soft Press polish on-load pressure is 25KN/m, and soft calendaring obtains described paper in the office after processing.
Wherein, add in the slurry when with slurry in described step (3) and account for the GCC of described paper in the office quality 12%, account for institute State the cationic starch of PCC, 6kg/ ton paper of paper in the office quality 12%, the brightening agent of 4kg/ ton paper, the face of 100g/ ton paper Material, the bentonite of ASA, 0.3kg/ ton paper PAM, 3kg/ ton paper of 1kg/ ton paper, the particulate of 0.3kg/ ton paper, 0.4kg/ ton paper Defoamer and the bactericide of 0.4kg/ ton paper.
In described step (7), surface size includes the component of following concentration：The ative starch of 35kg/ ton paper, 0.3kg/ ton The anti-blushing agent of paper, the sizing agent of 3kg/ ton paper, the brightening agent of 6kg/ ton paper, the salt of 3kg/ ton paper.
Embodiment 4
A kind of embodiment of the preparation method of the paper in the office with moisture effect, as shown in Figure 1, described preparation method Comprise the following steps：
(1) slurry size degradation and slagging-off：By the high intensity of import, the long and short fiber sulfuric acid salt of high whiteness and chemi-mechanical pulp Press 5% mass percent concentration size degradation respectively, then the warp when the mass percent concentration of long and short fiber sulfuric acid salt is 4% Cross HC Cleaner to process, remove the impurity of heavy in slurry；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar, long fibre sulfate wood pulp freedom control after making beating In 350CFS, chopped fiber sulfate wood pulp freedom controls in about 330CFS system；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt after making beating and chemi-mechanical pulp are pressed long fibre sulfate dimension Wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood pulp： Chemi-mechanical pulp=15：75：10 ratio is with slurry, and disposed slurry with slurry is through scummer, deaerator, and slotted screen processes and removes impurity After surf the Net；
(4) upper net forming：It is through excessively stream after 1.5% that slurry with water after processing in step (3) is diluted to mass concentration Slurry case online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described page is done Spend for 24%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 50%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 96%；
(7) page surface is processed：Top sizing process is carried out using the page that surface size obtains to step (6), applies Glue amount every face 1.2g/m2；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying is to moisture For 4.5%；
(9) page soft calendaring is processed：Soft calendaring process is carried out using the page that crown controlled roll obtains to step (8), soft Press polish on-load pressure is 25KN/m, and soft calendaring obtains described paper in the office after processing.
Wherein, add in the slurry when with slurry in described step (3) and account for the GCC of described paper in the office quality 14%, account for institute State the cationic starch of PCC, 6kg/ ton paper of paper in the office quality 14%, the brightening agent of 4kg/ ton paper, the face of 100g/ ton paper Material, the bentonite of ASA, 0.3kg/ ton paper PAM, 3kg/ ton paper of 1kg/ ton paper, the particulate of 0.3kg/ ton paper, 0.4kg/ ton paper Defoamer and the bactericide of 0.4kg/ ton paper.
In described step (7), surface size includes the component of following concentration：The ative starch of 35kg/ ton paper, 0.3kg/ ton The anti-blushing agent of paper, the sizing agent of 3kg/ ton paper, the brightening agent of 6kg/ ton paper, the salt of 3kg/ ton paper.
Embodiment 5
To there is the paper in the office of moisture effect and the office not adding anti-blushing agent described in the embodiment of the present invention 1～4 Carry out moisture effect test with paper, result shows：Do not add the paper in the office of anti-blushing agent, be placed in wet environment, 24 is little Shi Hou, the moisture content of paper rises 0.8%；The paper in the office with moisture effect of the present invention, is placed on the same terms In environment, after 24 hours, the moisture content of paper only rises 0.2%.
The paper in the office with moisture effect of the present invention is used high whiteness wood pulp as raw material, high whiteness heavy carbon , as filler, compared with common paper in the office, smoothness improves 3～5 seconds, and bulk improves for sour calcium and precipitated calcium carbonate 0.05cm3/g.
Last should be noted that above example is only in order to illustrate technical scheme rather than to present invention guarantor The restriction of shield scope, although being explained in detail to the present invention with reference to preferred embodiment, those of ordinary skill in the art should Understand, technical scheme can be modified or equivalent, without deviating from the essence of technical solution of the present invention And scope.

Claims (6)

1. a kind of preparation method of the paper in the office with moisture effect is it is characterised in that described preparation method includes following step Suddenly：
(1) slurry size degradation and slagging-off：Long and short fiber sulfuric acid salt wood pulp and chemi-mechanical pulp are pressed respectively 5% mass percent Concentration size degradation, then removes the impurity of heavy in slurry；
(2) pull an oar：Slurry after step (1) size degradation is pulled an oar；
(3) with slurry and slurry purification：Long and short fiber sulfuric acid salt wood pulp after making beating and chemi-mechanical pulp are pressed long fibre sulfate Wood pulp：Chopped fiber sulfate wood pulp：The weight of chemi-mechanical pulp is than for long fibre sulfate wood pulp：Chopped fiber sulfate wood pulp： Chemi-mechanical pulp=10～20：65～75：10～15 ratio is with slurry, and disposed slurry with slurry is through scummer, deaerator, and slotted screen Process and surf the Net after removing impurity；
(4) upper net forming：It is through excessively stream after 1.0～2.0% that slurry with water after processing in step (3) is diluted to mass concentration Slurry case online, shaped roller, loading unit, low vacuum chamber, the dehydration of high vacuum case, obtain page after dehydration, described page is done Spend for 23～25%；
(5) press dewatering：The page that step (4) is obtained web dryness after two road boots pressures is 48～52%；
(6) it is dried before page：The page that step (5) is obtained web dryness after single dryer is dried is 95～97%；
(7) page surface is processed：Top sizing process, resin added are carried out using the page that surface size obtains to step (6) Every face 1.0～1.2g/m2, wherein, surface size comprises anti-blushing agent 0.2～0.4kg/ ton paper；
(8) it is dried after page：The moisture removal in page after being processed top sizing by rear drying to moisture is 3.5 ～4.5%；
(9) page soft calendaring is processed：Soft calendaring process, soft calendaring are carried out using the page that crown controlled roll obtains to step (8) On-load pressure is 20～30KN/m, and soft calendaring obtains described paper in the office after processing.
2. preparation method according to claim 1 it is characterised in that described step (2) in making beating after long fibre sulfate Wood pulp freedom controls in 300～400CFS, and chopped fiber sulfate wood pulp freedom controls in 280～380CFS.
3. preparation method according to claim 1 is it is characterised in that add in the slurry when with slurry in described step (3) The powdered whiting accounting for described paper in the office quality 10～14% is, the lightweight carbonic acid accounting for described paper in the office quality 10～14% Calcium, the cationic starch of 5～7kg/ ton paper, the brightening agent of 2～6kg/ ton paper, the pigment of 0～200g/ ton paper, 0.8～1.2kg/ The alkenyl succinic anhydride of ton paper, 0.2～0.4kg/ ton paper polyacrylamide, the bentonite of 2～4kg/ ton paper, 0.2～0.4kg/ The bactericide of the particulate, the defoamer of 0.3～0.5kg/ ton paper and 0.3～0.5kg/ ton paper of ton paper.
4. preparation method according to claim 1 it is characterised in that in described step (7) surface size also comprise with The component of lower concentration：The ative starch of 30～40kg/ ton paper, the sizing agent of 2～4kg/ ton paper, the brightening agent of 4～8kg/ ton paper, 2 The salt of～4kg/ ton paper.
5. preparation method according to claim 3 is it is characterised in that described particulate is PAMA.
6. preparation method according to claim 1 it is characterised in that in described step (7) anti-blushing agent be converted starch and The mixture of acrylamide grafted copolymer or polythene wax emulsion.
CN201610887714.8A 2016-10-11 2016-10-11 Preparation method of office paper with effect of moisture prevention Pending CN106400578A (en)

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CN114108387A (en) * 2021-12-08 2022-03-01 广州美斯乐科技有限公司 High-fiber moisture-proof packing paper with high toughness and preparation process thereof
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Application publication date: 20170215