CN107354816A - A kind of printing wood-free paper - Google Patents
A kind of printing wood-free paper Download PDFInfo
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- CN107354816A CN107354816A CN201710516527.3A CN201710516527A CN107354816A CN 107354816 A CN107354816 A CN 107354816A CN 201710516527 A CN201710516527 A CN 201710516527A CN 107354816 A CN107354816 A CN 107354816A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
-
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/20—Chemically or biochemically modified 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
- D21H15/10—Composite 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
- 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
- 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
-
- 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
- D21H21/38—Corrosion-inhibiting agents or anti-oxidants
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of printing wood-free paper, belong to pulp technology for making paper.The present invention is by rice husk and water, after biogas slurry is stirred, sealing and standing is fermented, it is filtered, washing, freezing powder obtains rice hull cellulose, after bleaching agent constant temperature stirring reaction, filtering, washing, rice hull cellulose filler must be modified by drying to constant weight, pine wood pulp is mixed to sealing and standing fermentation with biogas slurry again, must be fermented wood pulp, add hardwood pulp, softwood pulp, which is stirred, is beaten to obtain wood pulp, add after cationic starch is stirred, wood pulp must be diluted by being diluted with water, again with retention agent, preservative and modified rice hull cellulose filler, online process is completed after well mixed, again ground paper is formed through dehydration shaping, after sizing agent and water are configured into glue application solution, glue application solution is coated on ground paper surface, again through drying, cut after winding, produce printing wood-free paper.The beneficial effects of the invention are as follows：Printing wood-free paper of the present invention has excellent folding quality, and folding strength is high, and has preferable mechanical performance.
Description
Technical field
The present invention relates to a kind of printing wood-free paper, belong to pulp technology for making paper.
Background technology
Wood-free paper refers to printing, is also offset paper.Offset paper is typically using bleached chemical softwood pulp and appropriate
Bamboo pulp is made.Some high-grade offset paper, also to carry out top sizing, press polish.Offset paper is in printing due to using ink
The principle of balance, it is therefore desirable to which paper has good water-resistance, dimensional stability and intensity.Offset paper is used for colored printing
Product, to enable ink to restore the tone of original copy, it is desirable to which there is certain whiteness and smoothness.Offset paper is generally used for printing
Picture album, colour plate, high-grade books and this volume etc..But because for sandwich construction, inter-layer bonding force is poor, easily layering；And by
There is multilayer combination in paper, picture and text printing effect is not fine and smooth true to nature enough, and feel is not good enough.Chinese Patent Application No.
CN201210162925.7 discloses wood-free paper, and it includes body paper and is formed at the table glue-line on body paper surface, and the body paper is made
Paper pulp uses the mixing slurry of bleached chemical chopped fiber, bleached chemical long fibre and high yield pulp, wherein bleached chemical chopped fiber
Weight/mass percentage composition is 50%~80%, and the long stapled weight/mass percentage composition of bleached chemical is 2~25%, the quality hundred of high yield pulp
It is 5~30% to divide content；The drying strengthening agent with increase dehydration effect is also added in the paper pulp；The paper pulp is through defibrination process, its Xiao
Family name's beating degree is 23~36 ° of SR.Be added with filler in described body paper paper pulp, filler be calcium carbonate, talcum powder, mineral fibres,
One or more in mica, titanium dioxide, filler level china clay.The wood-free paper is one-time formed single layer structure, is kept away
It is low to exempt from inter-layer bonding force caused by the paper of sandwich construction, easily layering, appearance the problems such as feel and not good enough printing performance,
But due to the addition of the fillers such as calcium carbonate so that interfibrous adhesion weakens, and hard filler grain is easily when folding
Fiber is rubbed, causes obtained wood-free paper folding strength to reduce.Therefore, how to realize that a kind of high wood-free paper of folding strength is in the industry
Technical problem urgently to be resolved hurrily, it can not only improve the printing quality of wood-free paper, the also development to wood-free paper has important meaning
Justice.
The content of the invention
The technical problems to be solved by the invention：For the addition of the fillers such as calcium carbonate so that interfibrous adhesion subtracts
Weak and hard filler grain easily rubs fiber when folding, the drawbacks of causing obtained wood-free paper folding strength to reduce, and carries
For a kind of printing wood-free paper.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of printing wood-free paper, including following raw material：Wood pulp, cationic starch, sizing agent, retention agent, preservative and filler：
Described wood pulp is mixed by the raw material of following parts by weight：60~80 parts of hardwood pulps, 20~40 parts of needlebush
Slurry, 10~20 parts of fermentation wood pulps；
Described filler is modified rice hull cellulose filler, and specific modification procedure is：It is 1 in mass ratio:8~1:15 by rice husk and water
It is stirred, adds the biogas slurry of 0.1~0.2 times of rice husk quality, stands sealed fermenting after 7~15 days, filtering, washing, freezing
Crush, obtain rice hull cellulose, then by rice hull cellulose and bleaching agent be 1 in mass ratio:30~1:After 80 mixing, constant temperature stirring reaction 4
~6h, is filtered, washed and dried, and obtains modified rice hull cellulose filler；
Described printing is with the specific preparation process of wood-free paper：
（1）Mashing is 30~45 ° of SR to beating degree after hardwood pulp, softwood pulp and fermentation wood pulp are stirred, and obtains wood pulp；
（2）The cationic starch of pulp quality 3~5% is added into wood pulp, after being uniformly mixed, is diluted with water to wood pulp matter
It is 1~3% to measure fraction, obtains dilution wood pulp；
（3）The retention agent of dilution pulp quality 0.3~0.5% is added into dilution wood pulp, dilutes pulp quality 0.2~0.4%
The modification rice hull cellulose filler of preservative and 0.2~0.6 times of pulp quality of dilution, online process is completed after being well mixed, then passed through
Dehydration shaping forms the ground paper that moisture content is 8~10%, and sizing agent and water are configured into the applying glue that mass concentration is 10~20g/L
After liquid, glue application solution is coated on ground paper surface, then cut after drying, winding, produces printing wood-free paper.
Described sizing agent is any one in AKD Cypres, polyvinyl alcohol or carboxymethyl cellulose.
Described retention agent is any one in diallyl dimethyl ammoniumchloride, polyethyleneimine.
Described preservative is formed by the raw material compounding of following parts by weight：40~60 parts of papermaking preservative DL501,8
~10 parts of boraxs, 20~30 parts of Liquid BPFs -367.
Described hardwood pulp is any one in birch wood pulp, poplar wood pulp, linden wood pulp or Eucalyptus wood pulp.
Described softwood pulp is any one in masson's pine wood pulp, larch wood pulp or spruce pulp.
Described fermentation wood pulp is pine wood pulp and biogas slurry is 10 in mass ratio:1~20:After 1 mixed fermentation 8~10 days
Arrive.
Described bleaching agent is formulated by the raw material of following parts by weight：60~80 parts of mass fractions are 8% hypochlorous acid
Sodium solution and 10~20 parts of hydrogen peroxide.
Compared with other method, advantageous effects are the present invention：
（1）Technical solution of the present invention uses the inanimate matters such as modified rice hull cellulose substitution conventional calcium carbonates as system filler, in modification
During, initial breakdown occurs after rice hull cellulose is fermented, rice hull cellulose is changed into loose shape by initial intimate-association state
State, be advantageous to moisture entrance, then coordinate Freezing smashing, in refrigerating process, the hydrogenesis inside rice hull cellulose is ice crystal, when
During by high impact forces in crushing process, ice crystal is under pressure effect rupture, so that rice husk is fragmented into the rice of nano-scale
Case fibre, the oxidizing bleaching agent of subsequent apparatus handle rice hull cellulose, on the one hand reach bleaching effect, avoid rice husk
Fiber interferes to product colour, can enrich rice hull cellulose surface active groups quantity after on the other hand bleaching, be advantageous to rice
Case fibre organically combines with wood pulp cellulose, improves system intensity, rice hull cellulose sheet is as string, compared to inorganic filler
Speech, has excellent flexibility and folding quality, in addition, have benefited from the silica cuticula that rice hull cellulose outer layer naturally covers,
Make during it uses as filler, to play reinforcement, toughening effect；
（2）Technical solution of the present invention is compounded using hardwood pulp, softwood pulp and fermentation wood pulp, and fiber is most long in softwood pulp,
Secondly it is hardwood pulp, and after the fermented degraded of the wood pulp that ferments, fiber is most thin, also most short, the cooperation of three, can be in paper system
Middle formation length interweaves, the organic whole of densification filling, and after the fermented processing of wood pulp, active group increasing number can conduct
Connection bridge between filler and wood pulp cellulose, improves its bond strength, so that product mechanical performance effectively improves.
Embodiment
It is 1 in mass ratio:8~1:15 add rice husk and water in fermentation tank, and add 0.1~0.2 times of rice husk quality
Biogas slurry, after being stirred 10~30min with 200~400r/min rotating speeds, fermentation tank is sealed, in temperature be 28~32 DEG C of conditions
Under, after sealing and standing is fermented 7~15 days, filtering, filter residue is obtained, filter residue is washed with deionized 3~5 times, then by the filter after washing
Slag is transferred in freezing crusher, is crushed 10~30min, discharging, is obtained rice hull cellulose, then by rice hull cellulose and bleaching agent in mass ratio
For 1:30~1:80 add three-necked flasks, and three-necked flask immigration digital display is tested the speed constant temperature blender with magnetic force, in temperature be 45~
55 DEG C, under the conditions of rotating speed is 300~500r/min, constant temperature 4~6h of stirring reaction, question response terminates, and filtering, obtains filter cake, is used in combination
Deionized water washing filter cake until cleaning solution in neutrality, then the filter cake after washing is transferred in baking oven, in temperature be 105~110
Dried under the conditions of DEG C to constant weight, obtain modified rice hull cellulose filler；It is 10 in mass ratio:1~20:1 adds pine wood pulp with biogas slurry
Enter in fermentation tank, after being stirred 10~20min with 200~400r/min rotating speeds, fermentation tank sealed, in temperature be 28~32
Under the conditions of DEG C, sealing and standing is fermented 8~10 days, obtains fermentation wood pulp；Count in parts by weight again, take 60~80 parts of leaf woods successively
Slurry, 20~40 parts of softwood pulps, 10~20 parts of fermentation wood pulps, 10 are stirred with 400~600r/min rotating speeds with mixer~
After 30min, it is beaten, it is 30~45 ° of SR to be beaten to beating degree, obtains wood pulp；Pulp quality 3~5% is added into wood pulp again
Cationic starch, after being stirred 20~30min with mixer with 300~500r/min rotating speeds, then it is diluted with water into wood pulp
It is 1~3% to pulp quality fraction, obtains dilution wood pulp；Then successively to dilution wood pulp in add dilution pulp quality 0.3~
0.5% retention agent, the preservative for diluting pulp quality 0.2~0.4% and the modification rice husk for diluting 0.2~0.6 times of pulp quality
Fiberfill, it is stirred with mixer with 300~500r/min rotating speeds after 45~60min and carries out online process, then through dehydration
Sizing forms the ground paper that moisture content is 8~10%, after sizing agent and water to be configured to the glue application solution that mass concentration is 10~20g/L,
Glue application solution is coated on ground paper surface, it is 2.5~3.0kg/t ground paper to control glue application solution dosage, then by ground paper in temperature be 80~
After drying 3~5h under the conditions of 85 DEG C, winding, cutting, printing wood-free paper is produced.Described bleaching agent is by following parts by weight
Raw material be formulated：60~80 parts of mass fractions are 8% liquor natrii hypochloritis and 10~20 parts of hydrogen peroxide.Described leaf wood
Starch as any one in birch wood pulp, poplar wood pulp, linden wood pulp or Eucalyptus wood pulp.Described softwood pulp is pinus massoniana
Any one in slurry, larch wood pulp or spruce pulp.Described retention agent is diallyl dimethyl ammoniumchloride, poly- second
Any one in alkene imines.Described preservative is formed by the raw material compounding of following parts by weight：40~60 parts of papermaking are prevented
Rotten agent DL501,8~10 parts of boraxs, 20~30 parts of Liquid BPFs -367.Described sizing agent is AKD Cypres, polyethylene
Any one in alcohol or carboxymethyl cellulose.
Example 1
Rice husk is put into freezing crusher, 30min is crushed, discharging, obtains rice hull cellulose；It is 20 in mass ratio:1 by pine wood pulp
With biogas slurry add fermentation tank in, after being stirred 20min with 400r/min rotating speeds, fermentation tank is sealed, in temperature be 32 DEG C of bars
Under part, sealing and standing is fermented 10 days, obtains fermentation wood pulp；Count in parts by weight again, take 80 parts of hardwood pulps, 40 parts of needlebush successively
Slurry, 20 parts of fermentation wood pulps, after being stirred 30min with mixer with 600r/min rotating speeds, is beaten, is beaten to beating degree and is
45 ° of SR, obtain wood pulp；The cationic starch of pulp quality 5% is added into wood pulp again, is stirred with mixer with 500r/min rotating speeds
After mixing 30min, then it is 3% to be diluted with water to pulp quality fraction into wood pulp, obtains dilution wood pulp；Then successively to dilution wood
The retention agent of dilution pulp quality 0.5%, the preservative of dilution pulp quality 0.4% and 0.6 times of pulp quality of dilution are added in slurry
Rice hull cellulose, carry out online process after being stirred 60min with mixer with 500r/min rotating speeds, then formed through dehydration shaping
Moisture content is 10% ground paper, and after sizing agent and water to be configured to the glue application solution that mass concentration is 20g/L, glue application solution is coated on
Ground paper surface, it is 3.0kg/t ground paper to control glue application solution dosage, then by ground paper after 5h is dried under the conditions of temperature is 85 DEG C, winding,
Cutting, produces printing wood-free paper.Described hardwood pulp is birch wood pulp.Described softwood pulp is masson's pine wood pulp.Institute
The retention agent stated is diallyl dimethyl ammoniumchloride.Described preservative be by following parts by weight raw material compounding and
Into：60 parts of papermaking preservative DL501,10 parts of boraxs, 30 parts of Liquid BPFs -367.Described sizing agent is AKD Cypres.
Example 2
It is 1 in mass ratio:15 add rice husk and water in fermentation tank, and add the biogas slurry of 0.2 times of rice husk quality, with 400r/min
After rotating speed is stirred 30min, fermentation tank is sealed, under the conditions of temperature is 32 DEG C, after sealing and standing is fermented 15 days, filtering,
Filter residue is obtained, filter residue is washed with deionized 5 times, then the filter residue after washing is transferred in freezing crusher, crushes 30min, is discharged,
Rice hull cellulose, then by rice hull cellulose and bleaching agent be 1 in mass ratio:80 add three-necked flask, and three-necked flask is moved into number
The aobvious constant temperature blender with magnetic force that tests the speed, in temperature be 55 DEG C, under the conditions of rotating speed is 500r/min, constant temperature stirring reaction 6h, question response
Terminate, filtering, obtain filter cake, and filter cake is washed with deionized until cleaning solution is in neutrality, then the filter cake after washing is transferred into baking
In case, dried under the conditions of being 110 DEG C in temperature to constant weight, obtain modified rice hull cellulose filler；Count in parts by weight again, take 80 successively
Part hardwood pulp, 40 parts of softwood pulps, after being stirred 30min with mixer with 600r/min rotating speeds, is beaten, and mashing is extremely
Beating degree is 45 ° of SR, obtains wood pulp；The cationic starch of pulp quality 5% is added into wood pulp again, with mixer with 500r/min
After rotating speed is stirred 30min, then it is 3% to be diluted with water to pulp quality fraction into wood pulp, obtains dilution wood pulp；Then successively
The retention agent of dilution pulp quality 0.5%, the preservative of dilution pulp quality 0.4% and dilution wood pulp matter are added into dilution wood pulp
The modification rice hull cellulose filler of 0.6 times of amount, online process is carried out after being stirred 60min with mixer with 500r/min rotating speeds,
The ground paper that moisture content is 10% is formed through dehydration shaping again, sizing agent and water are configured to the glue application solution that mass concentration is 20g/L
Afterwards, glue application solution is coated on ground paper surface, it is 3.0kg/t ground paper to control glue application solution dosage, then by ground paper in temperature be 85 DEG C of bars
After drying 5h under part, winding, cutting, printing wood-free paper is produced.Described bleaching agent is matched somebody with somebody by the raw material of following parts by weight
System forms：80 parts of mass fractions are 8% liquor natrii hypochloritis and 20 parts of hydrogen peroxide.Described hardwood pulp is birch wood pulp.It is described
Softwood pulp be masson's pine wood pulp.Described retention agent is diallyl dimethyl ammoniumchloride.Described preservative be by
The raw material compounding of following parts by weight forms：60 parts of papermaking preservative DL501,10 parts of boraxs, 30 parts of Liquid BPFs -367.It is described
Sizing agent be AKD Cypres.
Example 3
It is 1 in mass ratio:15 add rice husk and water in fermentation tank, and add the biogas slurry of 0.2 times of rice husk quality, with 400r/min
After rotating speed is stirred 30min, fermentation tank is sealed, under the conditions of temperature is 32 DEG C, after sealing and standing is fermented 15 days, filtering,
Filter residue is obtained, filter residue is washed with deionized 5 times, then the filter residue after washing is transferred in freezing crusher, crushes 30min, is discharged,
Rice hull cellulose, then by rice hull cellulose and bleaching agent be 1 in mass ratio:80 add three-necked flask, and three-necked flask is moved into number
The aobvious constant temperature blender with magnetic force that tests the speed, in temperature be 55 DEG C, under the conditions of rotating speed is 500r/min, constant temperature stirring reaction 6h, question response
Terminate, filtering, obtain filter cake, and filter cake is washed with deionized until cleaning solution is in neutrality, then the filter cake after washing is transferred into baking
In case, dried under the conditions of being 110 DEG C in temperature to constant weight, obtain modified rice hull cellulose filler；It is 20 in mass ratio:1 is wooden by pine
Slurry with biogas slurry add fermentation tank in, after being stirred 20min with 400r/min rotating speeds, fermentation tank is sealed, in temperature be 32 DEG C
Under the conditions of, sealing and standing is fermented 10 days, obtains fermentation wood pulp；Count in parts by weight again, take 80 parts of hardwood pulps, 40 parts of needles successively
Wood pulp, 20 parts of fermentation wood pulps, after being stirred 30min with mixer with 600r/min rotating speeds, is beaten, is beaten to beating degree
For 45 ° of SR, wood pulp is obtained；The cationic starch of pulp quality 5% is added into wood pulp again, is stirred with mixer with 500r/min rotating speeds
After mixing mixing 30min, then it is 3% to be diluted with water to pulp quality fraction into wood pulp, obtains dilution wood pulp；Then successively to dilution
The retention agent of dilution pulp quality 0.5%, the preservative of dilution pulp quality 0.4% and dilution pulp quality 0.6 are added in wood pulp
Modification rice hull cellulose filler again, is stirred after 60min with 500r/min rotating speeds with mixer and carries out online process, then through de-
Water shapes for forming moisture content as 10% ground paper, after sizing agent and water to be configured to the glue application solution that mass concentration is 20g/L, will apply
For glue-coating in ground paper surface, it is 3.0kg/t ground paper to control glue application solution dosage, then ground paper is dried under the conditions of temperature is 85 DEG C
After 5h, winding, cutting, printing wood-free paper is produced.Described bleaching agent is formulated by the raw material of following parts by weight：80
Part mass fraction is 8% liquor natrii hypochloritis and 20 parts of hydrogen peroxide.Described hardwood pulp is birch wood pulp.Described needlebush
Starch as masson's pine wood pulp.Described retention agent is diallyl dimethyl ammoniumchloride.Described preservative is by following weight
The raw material compounding of number forms：60 parts of papermaking preservative DL501,10 parts of boraxs, 30 parts of Liquid BPFs -367.Described sizing agent
For AKD Cypres.
Reference examples：The wood-free paper of Jiangsu company production.
Printing obtained by above-described embodiment is detected with the wood-free paper of wood-free paper and reference examples, specific detection is as follows：
1st, tensile index：According to GB/T 453, it is measured using tensile strength meter；
2nd, folding strength：It is measured according to the standards of GB/T 457；
3rd, tear index：It is measured according to the standards of GB/T 455.
As a result as shown in Table 1.
Table one：
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Tensile index/（N·m·g-1） | 32.8 | 33.2 | 41.9 | 21.2 |
| Folding strength/time | 178 | 203 | 210 | 125 |
| Tear index/（mN·m2·g-1） | 7.53 | 7.62 | 8.32 | 6.94 |
As seen from the above table, printing wood-free paper of the present invention has excellent folding quality, and folding strength is high, and with preferably machinery
Performance, it is worthy to be popularized and uses.
Claims (8)
1. a kind of printing wood-free paper, including following raw material：Wood pulp, cationic starch, sizing agent, retention agent, preservative and fill out
Material, it is characterised in that：
Described wood pulp is mixed by the raw material of following parts by weight：60~80 parts of hardwood pulps, 20~40 parts of needlebush
Slurry, 10~20 parts of fermentation wood pulps；
Described filler is modified rice hull cellulose filler, and specific modification procedure is：It is 1 in mass ratio:8~1:15 by rice husk and water
It is stirred, adds the biogas slurry of 0.1~0.2 times of rice husk quality, stands sealed fermenting after 7~15 days, filtering, washing, freezing
Crush, obtain rice hull cellulose, then by rice hull cellulose and bleaching agent be 1 in mass ratio:30~1:After 80 mixing, constant temperature stirring reaction 4
~6h, is filtered, washed and dried, and obtains modified rice hull cellulose filler；
Described printing is with the specific preparation process of wood-free paper：
（1）Mashing is 30~45 ° of SR to beating degree after hardwood pulp, softwood pulp and fermentation wood pulp are stirred, and obtains wood pulp；
（2）The cationic starch of pulp quality 3~5% is added into wood pulp, after being uniformly mixed, is diluted with water to wood pulp matter
It is 1~3% to measure fraction, obtains dilution wood pulp；
（3）The retention agent of dilution pulp quality 0.3~0.5% is added into dilution wood pulp, dilutes pulp quality 0.2~0.4%
The modification rice hull cellulose filler of preservative and 0.2~0.6 times of pulp quality of dilution, online process is completed after being well mixed, then passed through
Dehydration shaping forms the ground paper that moisture content is 8~10%, and sizing agent and water are configured into the applying glue that mass concentration is 10~20g/L
After liquid, glue application solution is coated on ground paper surface, then cut after drying, winding, produces printing wood-free paper.
2. one kind printing wood-free paper according to claim 1, it is characterised in that：Described sizing agent is that AKD surfaces are applied
Any one in jelly, polyvinyl alcohol or carboxymethyl cellulose.
3. one kind printing wood-free paper according to claim 1, it is characterised in that：Described retention agent is polydiene propyl group
Any one in alkyl dimethyl ammonium chloride, polyethyleneimine.
4. one kind printing wood-free paper according to claim 1, it is characterised in that：Described preservative is by following weight
The raw material compounding of number forms：40~60 parts of papermaking preservative DL501,8~10 parts of boraxs, 20~30 parts of Liquid BPFs -367.
5. one kind printing wood-free paper according to claim 1, it is characterised in that：Described hardwood pulp is birch wood
Any one in slurry, poplar wood pulp, linden wood pulp or Eucalyptus wood pulp.
6. one kind printing wood-free paper according to claim 1, it is characterised in that：Described softwood pulp is pinus massoniana
Any one in slurry, larch wood pulp or spruce pulp.
7. one kind printing wood-free paper according to claim 1, it is characterised in that：Described fermentation wood pulp is pine wood pulp
It is 10 in mass ratio with biogas slurry:1~20:Obtained after 1 mixed fermentation 8~10 days.
8. one kind printing wood-free paper according to claim 1, it is characterised in that：Described bleaching agent is by following weight
The raw material of number is formulated：60~80 parts of mass fractions are 8% liquor natrii hypochloritis and 10~20 parts of hydrogen peroxide.
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| CN201710516527.3A CN107354816A (en) | 2017-06-29 | 2017-06-29 | A kind of printing wood-free paper |
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| CN108193559A (en) * | 2017-12-11 | 2018-06-22 | 常州市宇科不绣钢有限公司 | A kind of preparation method of cigarette tipping paper |
| CN108997920A (en) * | 2018-09-17 | 2018-12-14 | 佛山市禅城区诺高环保科技有限公司 | A kind of aqueous polyurethane liquid vehicle body protective film |
| CN108997955A (en) * | 2018-09-17 | 2018-12-14 | 佛山市禅城区诺高环保科技有限公司 | A kind of preparation method of water-resistant type paper tube adhesive |
| CN109266176A (en) * | 2018-09-21 | 2019-01-25 | 佛山市禅城区诺高环保科技有限公司 | A kind of glass flake anticorrosion paint |
| CN109940161A (en) * | 2019-03-11 | 2019-06-28 | 肖剑 | A kind of iron base composite material and preparation method thereof of micro/nano level Carbon fibe enhancing |
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| CN110644275A (en) * | 2019-10-18 | 2020-01-03 | 王育安 | Coated paper production device |
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Application publication date: 20171117 |