CN105862497A - Preparation method of highly air-permeable kraft paper - Google Patents

Preparation method of highly air-permeable kraft paper Download PDF

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Publication number
CN105862497A
CN105862497A CN201610200856.2A CN201610200856A CN105862497A CN 105862497 A CN105862497 A CN 105862497A CN 201610200856 A CN201610200856 A CN 201610200856A CN 105862497 A CN105862497 A CN 105862497A
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China
Prior art keywords
parts
kraft paper
preparation
paper
highly
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Application number
CN201610200856.2A
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Chinese (zh)
Inventor
顾建芳
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Tripartite Confrontation Packing Co Ltd Of Suzhou City
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Tripartite Confrontation Packing Co Ltd Of Suzhou City
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.)
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Application filed by Tripartite Confrontation Packing Co Ltd Of Suzhou City filed Critical Tripartite Confrontation Packing Co Ltd Of Suzhou City
Priority to CN201610200856.2A priority Critical patent/CN105862497A/en
Publication of CN105862497A publication Critical patent/CN105862497A/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
    • 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
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

The invention discloses a preparation method of highly air-permeable kraft paper. The method comprises the steps of: (1) evenly mixing unbleached sulfate softwood pulp, bleached sulfate softwood pulp, eucalyptus pulp, polyvinyl alcohol and glycerin, and heating to activate to obtain a modified wood pulp for standby; (2) adding modified wood pulp obtained in the step (1), perlite, talc, polyimide fibers and a surfactant to a pulping pool, adding industry water to the pulping pool, stirring to mix well, sending the mixture to a refiner for uniform dispersion, and transporting the mixture to a completion tower for standby; and (3) sending the slurry in the completion tower to a paper machine, and conducting sizing, dehydration, drying, pressing and calendaring. Compared with the prior art, the obtained kraft paper has good tensile strength, crack resistance, and air permeability much higher than the commercially available kraft paper, and has wider range of applications.

Description

A kind of preparation method of highly-breathable kraft paper
Technical field
The invention belongs to paper-making technology field, specifically disclose the preparation method of a kind of highly-breathable kraft paper.
Background technology
The past when, the paper using first-class calf-skin to make is kraft paper, and along with the invention of papermaking technology, people begin to use Acerose lumber fibre manufactures kraft paper.Owing to this paper pulled out through the paper pulp of special processing is filemot, And there are fabulous toughness and tearing toughness, very as Corii Bovis seu Bubali, so being referred to as kraft paper by people.Present Corii Bovis seu Bubali Paper nearly all uses paper pulp to break into.
Kraft paper is the highest because of its intensity, is often used as packaging material.Generally in yellowish-brown, the kraft pulp of half drift or full drift is light Brown, cream-colored or white.Quantitative 80～120g/m2, fracture length is typically at more than 6000m.Tearing toughness, rupture merit and Resistance to vibration is the highest.It mostly is roll web, also has sheet paper.Employing kp softwood pulp is raw material, through making beating, makes at fourdrinier wire Manufacture paper with pulp on paper machine and form.Can be used as cement bag paper, M.G. pure sulphite paper, glue envelope paper dress, bituminized paper, cable protective paper, insulating paper etc..
Different with the manufacture method of the paper such as crimped paper, kraft paper owing to have employed Caustic soda and the chemically treated method of akali sulphide, and And employ the raw material that lumber fibre is long, so for the fiber destruction degree in paper pulp compare low, this also ensures that The lumber fibre of study course can be retained to the full extent, thus the paper made can seem especially solid.Cattle The specific properties of mulberry paper and state also determine its uniqueness as paper skill material.Kraft paper can be processed to machine glazing or Being dual light, can also be processed to carry streaky simultaneously, this provides the when of just carrying out relevant paper skill making for us Multiple selection.Add the strength ratio of kraft paper compared with height, so seldom there will be the feelings that manufacturing process heifer paper is torn Condition, and the pulling force in length and breadth of kraft paper all compare strong, so be extensively applied to conceptualization paper skill design in.
Although kraft paper has good tearing toughness, but its breathability is the best, for the storage of product, especially eats The storage of thing brings inconvenience, and therefore the improvement to kraft paper performance is particularly necessary.
Summary of the invention
Goal of the invention: it is an object of the invention to provide the preparation method of a kind of highly-breathable kraft paper, prepared kraft paper has Breathability is good, tightness high.
Technical scheme:
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 15～30 parts, bleached sulphate softwood pulp 5～10 parts, eucalyptus globulus will, by weight, not floated Wood wood pulp 3～5 parts, polyvinyl alcohol 3～6 parts, glycerol 5～10 parts of mix homogeneously, heat-activated, obtain modified wood pulp, standby；
(2) the modified wood pulp, step (1) prepared and perlite 3～5 parts, Pulvis Talci 2～4 parts, polyimide fiber 1～3 Part and surfactant 2～4 parts render in pulping pond, and in pulping pond, add industry water, and deliver to after being uniformly mixed Fiberizer, becomes to be uniformly dispersed through fiberizer, and has been transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation.
In step (1), the bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 30-40 DEG C, bleaching Time 3～3.5h, whiteness 35～40%.
In step (1), the temperature of heat-activated is 120～140 DEG C, and the process time is 3～6 hours.
In step (2), add volume is solid material 5～10 times of industry water.
In slurry, guar gum is added during sizing process in step (3).
Described guar gum accounts for the 1～5wt% of slurry weight.
Beneficial effect
Compared with prior art, the kraft paper that the present invention prepares has good tension stress and breaking resistance, and air permeability is remote Higher than commercially available kraft paper, range of application is more extensive.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 15 parts, bleached sulphate softwood pulp 5 parts, Eucalyptus wood pulp will, by weight, not floated 3 parts, polyvinyl alcohol 3 parts, 5 parts of mix homogeneously of glycerol, under conditions of temperature is 120 DEG C, heat-activated 3 hours, are changed Property wood pulp, standby；
The bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 30 DEG C, bleaching time 3h, whiteness 35%；
(2) the modified wood pulp, step (1) prepared and perlite 3～5 parts, Pulvis Talci 2～4 parts, polyimide fiber 1～3 Part and surfactant 2～4 parts render in pulping pond, and in pulping pond, add industry water, the volume adding industry water is solid 5～10 times of body raw material, and deliver to fiberizer after being uniformly mixed, become to be uniformly dispersed through fiberizer, and be transported to In tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation.
Embodiment 2
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 20 parts, bleached sulphate softwood pulp 8 parts, Eucalyptus wood pulp will, by weight, not floated 4 parts, polyvinyl alcohol 5 parts, 8 parts of mix homogeneously of glycerol, under conditions of temperature is 130 DEG C, heat-activated 5 hours, are changed Property wood pulp, standby；
The bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 35 DEG C, bleaching time 3.2h, whiteness 38%；
(2) the modified wood pulp, step (1) prepared and perlite 4 parts, Pulvis Talci 3 parts, polyimide fiber 2 parts and table Face activating agent 3 parts is rendered in pulping pond, and adds industry water in pulping pond, and the volume adding industry water is solid material 5～10 times, and deliver to fiberizer after being uniformly mixed, become to be uniformly dispersed through fiberizer, and be transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation.
Embodiment 3
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 30 parts, bleached sulphate softwood pulp 10 parts, Eucalyptus wood will, by weight, not floated Starch 5 parts, polyvinyl alcohol 6 parts, 10 parts of mix homogeneously of glycerol, heat-activated 6 hours under conditions of temperature is 140 DEG C, To modified wood pulp, standby；
The bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 40 DEG C, bleaching time 3.5h, whiteness 40%；
(2) the modified wood pulp, step (1) prepared and perlite 5 parts, Pulvis Talci 4 parts, polyimide fiber 3 parts and table Face activating agent 4 parts is rendered in pulping pond, and adds industry water in pulping pond, and the volume adding industry water is solid material 10 times, and deliver to fiberizer after being uniformly mixed, become to be uniformly dispersed through fiberizer, and be transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation.
Embodiment 4
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 30 parts, bleached sulphate softwood pulp 10 parts, Eucalyptus wood will, by weight, not floated Starch 5 parts, polyvinyl alcohol 6 parts, 10 parts of mix homogeneously of glycerol, heat-activated 6 hours under conditions of temperature is 140 DEG C, To modified wood pulp, standby；
The bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 40 DEG C, bleaching time 3.5h, whiteness 40%；
(2) the modified wood pulp, step (1) prepared and perlite 5 parts, Pulvis Talci 4 parts, polyimide fiber 3 parts and table Face activating agent 4 parts is rendered in pulping pond, and adds industry water in pulping pond, and the volume adding industry water is solid material 10 times, and deliver to fiberizer after being uniformly mixed, become to be uniformly dispersed through fiberizer, and be transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation, add guar gum in slurry during sizing process, described guar gum accounts for the 1wt% of slurry weight.
Embodiment 5
The preparation method of a kind of highly-breathable kraft paper, comprises the steps:
(1) kp softwood pulp 30 parts, bleached sulphate softwood pulp 10 parts, Eucalyptus wood will, by weight, not floated Starch 5 parts, polyvinyl alcohol 6 parts, 10 parts of mix homogeneously of glycerol, heat-activated 6 hours under conditions of temperature is 140 DEG C, To modified wood pulp, standby；
The bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 40 DEG C, bleaching time 3.5h, whiteness 40%；
(2) the modified wood pulp, step (1) prepared and perlite 5 parts, Pulvis Talci 4 parts, polyimide fiber 3 parts and table Face activating agent 4 parts is rendered in pulping pond, and adds industry water in pulping pond, and the volume adding industry water is solid material 10 times, and deliver to fiberizer after being uniformly mixed, become to be uniformly dispersed through fiberizer, and be transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing Operation and press polish operation, add guar gum in slurry during sizing process, described guar gum accounts for the 5wt% of slurry weight.
To embodiment 1～5 and commercially available kraft paper carry out performance test, wherein air permeability uses GB/T458-1989 " paper and paper Plate air permeability algoscopy " specify method test, result is as shown in table 1.
Table 1 performance test results
As can be seen from the above table, compared with commercially available kraft paper, the kraft paper that the present invention prepares there is good tension stress and anti- Resistance to spalling, and air permeability is far above commercially available kraft paper, range of application is more extensive.

Claims (6)

1. the preparation method of a highly-breathable kraft paper, it is characterised in that comprise the steps:
(1), by weight, kp softwood pulp 15 ~ 30 parts, bleached sulphate softwood pulp 5 ~ 10 parts, Eucalyptus wood pulp 3 ~ 5 parts, polyvinyl alcohol 3 ~ 6 parts, 5 ~ 10 parts of mix homogeneously of glycerol, heat-activated will not floated, obtain modified wood pulp, standby；
(2), modified wood pulp and perlite 3 ~ 5 parts, Pulvis Talci 2 ~ 4 parts, polyimide fiber 1 ~ 3 part and 2 ~ 4 parts of surfactant step (1) prepared is rendered in pulping pond, and in pulping pond, add industry water, and after being uniformly mixed, deliver to fiberizer, become to be uniformly dispersed through fiberizer, and be transported in tower stand-by；
(3) slurry completed in tower is transported to paper machine, sequentially passes through sizing process, dehydration procedure, drying process, squeezing process and press polish operation.
The preparation method of a kind of highly-breathable kraft paper the most according to claim 1, it is characterised in that in step (1), the bleaching process of described bleached sulphate softwood pulp is: starch dense 3.5%, temperature 30-40 DEG C, bleaching time 3 ~ 3.5h, whiteness 35 ~ 40%.
The preparation method of a kind of highly-breathable kraft paper the most according to claim 1, it is characterised in that in step (1), the temperature of heat-activated is 120～140 DEG C, and the process time is 3～6 hours.
The preparation method of a kind of highly-breathable kraft paper the most according to claim 1, it is characterised in that in step (2), adds volume is solid material 5 ~ 10 times of industry water.
The preparation method of a kind of highly-breathable kraft paper the most according to claim 1, it is characterised in that add guar gum during the sizing process in step (3) in slurry.
The preparation method of a kind of highly-breathable kraft paper the most according to claim 5, it is characterised in that described guar gum accounts for 1 ~ 5wt% of slurry weight.
CN201610200856.2A 2016-04-01 2016-04-01 Preparation method of highly air-permeable kraft paper Pending CN105862497A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112176753A (en) * 2020-09-30 2021-01-05 江苏理文造纸有限公司 Mild pulping process

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068500A1 (en) * 1999-05-06 2000-11-16 Novozymes A/S A process for production of paper materials with improved wet strength
CN103255678A (en) * 2013-05-13 2013-08-21 金红叶纸业集团有限公司 Papermaking process and paper produced by same
CN103321084A (en) * 2013-06-21 2013-09-25 杭州特种纸业有限公司 Water-absorption type kraft paper and preparation process thereof
CN104411882A (en) * 2012-04-18 2015-03-11 Gp纤维素股份有限公司 The use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products
CN104499342A (en) * 2014-11-25 2015-04-08 南通新世纪机电有限公司 Waterproof kraft paper manufacturing process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068500A1 (en) * 1999-05-06 2000-11-16 Novozymes A/S A process for production of paper materials with improved wet strength
CN104411882A (en) * 2012-04-18 2015-03-11 Gp纤维素股份有限公司 The use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products
CN103255678A (en) * 2013-05-13 2013-08-21 金红叶纸业集团有限公司 Papermaking process and paper produced by same
CN103321084A (en) * 2013-06-21 2013-09-25 杭州特种纸业有限公司 Water-absorption type kraft paper and preparation process thereof
CN104499342A (en) * 2014-11-25 2015-04-08 南通新世纪机电有限公司 Waterproof kraft paper manufacturing process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112176753A (en) * 2020-09-30 2021-01-05 江苏理文造纸有限公司 Mild pulping process

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