CN107447566A - The production technology of paper and lower paper on a kind of tectorial paper - Google Patents

The production technology of paper and lower paper on a kind of tectorial paper Download PDF

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Publication number
CN107447566A
CN107447566A CN201710670161.5A CN201710670161A CN107447566A CN 107447566 A CN107447566 A CN 107447566A CN 201710670161 A CN201710670161 A CN 201710670161A CN 107447566 A CN107447566 A CN 107447566A
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China
Prior art keywords
paper
tectorial
slurry
workshop section
pulping
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Application number
CN201710670161.5A
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Chinese (zh)
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CN107447566B (en
Inventor
李伟
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Shanxi Qiangwei Paper Co Ltd
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Shanxi Qiangwei Paper Co Ltd
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Publication of CN107447566A publication Critical patent/CN107447566A/en
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    • 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
    • D21C5/02—Working-up waste paper
    • 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
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • 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
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills
    • D21D1/306—Discs
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

The production technology of paper and lower paper on a kind of tectorial paper, belong to tectorial paper production technical field, can solve the problems, such as that the performance such as the water suction of prior art protecting paper of gypsum board and hot water infiltration is unsatisfactory for requiring, including pulping workshop section, slurrying workshop section and papermaking workshop section, the pulping workshop section of paper includes Deinking Pulp production line pulping and OCC production line pulpings under tectorial paper, the slurrying workshop section of paper includes the slurrying of Deinking Pulp production line and OCC production line slurrying under tectorial paper, gauze portion uses face on tectorial paper, core, the three-layer network at bottom, gauze portion uses face under tectorial paper, lining, core, the four-layer network at bottom, investment reduction of the present invention, save the energy, pollution abatement.

Description

The production technology of paper and lower paper on a kind of tectorial paper
Technical field
The invention belongs to tectorial paper production technical field, and in particular to the production technology of paper and lower paper on a kind of tectorial paper.
Background technology
Thistle board is to apply commonplace a kind of Novel ceiling ornament materials at present, and it has lightweight, fire prevention, prevented The advantages that shake, insulation, good processing characteristics, and it is easy for construction, and dismantled and assembled performance is good, good decorating effect, can increase Build usable floor area.With the sustainable development of building trade, and people are to the abundant demand of decorated style, the demand of plasterboard Amount is also constantly increasing.
As the market demand is enriched constantly, there is a kind of overlay film plasterboard and used used in ceiling decoration, i.e., in plasterboard table One layer of PVC film is covered in face, this to protecting paper of gypsum board water suction and hot water infiltration etc. performance propose new requirement.
The content of the invention
The problem of present invention is unsatisfactory for requiring for the performance such as the water suction of prior art protecting paper of gypsum board and hot water infiltration, carries For the production technology of paper and lower paper on a kind of tectorial paper.
The present invention adopts the following technical scheme that：
The production technology of paper and lower paper on a kind of tectorial paper, including pulping workshop section, slurrying workshop section and papermaking workshop section,
The first step, pulping workshop section, including on tectorial paper under the pulping workshop section of paper and tectorial paper paper pulping workshop section；Wherein, overlay film The pulping workshop section production technology of paper, comprises the following steps on paper：Pass through chain after the useless evacuation waste paper bag by bale opener of 100% state Plate conveyer is sent into rotary drum pulping machine, adds 35-40 DEG C of warm water, size degradation is into the underflow that mass concentration is 4%, through highly concentrated slagging-off Device removes the heavy seeds in slurry, such as iron nail, stone, glass etc., standby into slurry tower；
The pulping workshop section production technology of paper under tectorial paper, including Deinking Pulp production line pulping and OCC production line pulpings, wherein, take off Ink starches production line pulping technological parameter：Rotary drum pulping is added after the U.S. useless uniform mixing of+70% state report of 9# that raw material proportioning is 30% Machine, and add deinking chemicals：Deinking agent 0.7kg/ ton waste paper, hydrogen peroxide 23kg/ ton waste paper, sodium hydroxide 18kg/ ton waste paper, Sodium metasilicate 8kg/ ton waste paper, waste paper and chemicals reaction, mashing, form the underflow that weight concentration is 4%, through height in pulper Dense scummer removes the heavy seeds in slurry, such as iron nail, stone, glass etc., and it is standby to get to pulp storage tank；
The technological parameter of OCC production line pulpings is identical with the pulping workshop section processing parameter of paper on tectorial paper.
Second step, slurrying workshop section, including on tectorial paper under the slurrying workshop section of paper and tectorial paper paper slurrying workshop section；Wherein, The slurrying workshop section production technology of paper, comprises the following steps on tectorial paper：The slurry that paper pulping workshop is come on tectorial paper, first pass through thick Sieve screening slurry, tail slurry send rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry is logical Long, medium and short fibre stuff is formed after the classification of classifying screen twice, long stuff is after too low dense scummer removes tiny gravel Slurry is further screened by fine screen, then polydisc thickener enters heat partition system after being concentrated into 10% mass concentration, control 100-105 DEG C of temperature, disk mill gap 0.15mm, disperse sicker to naked eyes None- identified, be beaten to be formed finally by mill and beat The slurry that the degree of beating is 40 ± 2 ° of SR, concentration is 4% is standby；Middle fibre stuff passes through low dense scummer, polydisc thickener, heat partition After system, mill mashing, it is standby to form the slurry that beating degree is 40 ± 2 ° of SR, concentration is 4%；Short stock dense removes through too low After slag device and polydisc thickener, it is standby to form the slurry that concentration is 4%；
The slurrying workshop section of paper under tectorial paper, including the slurrying of Deinking Pulp production line and OCC production line slurrying, wherein, Deinking Pulp production Line pulping process parameter is：The slurry that paper Deinking Pulp production line comes under tectorial paper first passes through scalping screening slurry, and tail slurry sends ONP back to Rotary drum pulping machine, good slurry enter flotation cell, then the ink flotation discharge system in newspaper is removed thin by low dense scummer Slurry is further screened by fine screen after small gravel, subsequently enters after polydisc thickener is concentrated into 10% mass concentration and enters heat Decentralized system, 105-110 DEG C of temperature of control, disk mill gap 0.13mm, disperse sicker to naked eyes None- identified, be finally sent into slurry Tower is standby；
OCC production line pulping process parameters are：The slurry that paper OCC production lines come under tectorial paper first passes through scalping screening slurry, tail Slurry sends OCC rotary drum pulping machines, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry passes through gradation sizing Long and short fibre stuff is formed after level, long stuff further sieves after too low dense scummer removes tiny gravel by fine screen Slurry is selected, then polydisc thickener enters heat partition system, 100-105 DEG C of temperature of control, disk after being concentrated into 10% mass concentration Gap 0.15mm is ground, disperses sicker to naked eyes None- identified, is beaten to form beating degree as 40 ± 2 ° of SR, dense finally by mill Spend standby for 4% slurry；It is standby to form the slurry that concentration is 4% after too low dense scummer and polydisc thickener for short stock With.
3rd step, papermaking workshop section, including on tectorial paper under the papermaking workshop section of paper and tectorial paper paper papermaking workshop section；Wherein, The papermaking workshop section production technology of paper, comprises the following steps on tectorial paper：The slurry that paper slip house comes on tectorial paper passes through streaming After system, i.e. fan pump, pressurized screen, form the slurry that concentration is 0.4%-0.8% and online is sprayed by head box, approach system adds It is as follows to enter chemicals：Starch 2kg/ ton paper in slurry is added before fan pump, aluminum sulfate 8kg/ tons paper, ASA applying glues are added after fan pump Agent 1.5-2.5kg/ ton paper, dry powder retention agent 0.2kg/ ton paper is added before pressurized screen, filter aid 0.4kg/ tons are added after pressurized screen Paper.Wet end uses 3 layers of net（Face, core, bottom）, surface layer is middle fine slurry vermicelli, and core, bottom are long and short fiber in mass ratio 5:6 mixing Slurry, it is dehydrated to 10-14% mass dryness fractions, press section by dewatering elements and is made up of the road of suction baby press+2 press with large-roll-diameter, go out splenium Mass dryness fraction is 46%, by front baking, table glue, after baking, press polish, batch, the most paper roll through rewinding machine rewinding into different size afterwards, enter Storehouse.Table glue surface layer starch concentration is 3-5%, and bottom concentration is 1-3%.
ASA sizing agents and Cypres produce synergy to control into paper water imbibition, front water suction 28-37g/ ㎡, reverse side water suction 39-46g/ ㎡, hot water infiltration 1200-1550s.
Paper formation degree after press polish is more preferable, is advantageous to overlay film production technology；
Preferably, in the chemicals that paper approach system adds on tectorial paper, ASA sizing agents are 2kg/ ton paper, paper on tectorial paper Table glue surface layer starch concentration is 4%, and bottom concentration is 2%, hot water infiltration 1200-1500s；
The papermaking workshop section production technology of paper, comprises the following steps under tectorial paper：The slurry that paper slip house comes under tectorial paper passes through After approach system, i.e. fan pump, pressurized screen, form the slurry that concentration is about 0.4%-0.8% and online, streaming are sprayed by head box It is as follows that system adds chemicals：Starch 2kg/ ton paper in slurry is added before fan pump, add after fan pump aluminum sulfate 12kg/ tons paper, ASA sizing agent 1-2.5kg/ ton paper, dry powder retention agent 0.25kg/ ton paper is added before pressurized screen, filter aid is added after pressurized screen 0.5kg/ ton paper.Wet end uses 4 layers of net（Face, lining, core, bottom）, surface layer is Deinking Pulp vermicelli, and lining, core, bottom are that OCC length is fine Dimension in mass ratio 6:4 mixed slurries, it is dehydrated by dewatering elements to 10-14% mass dryness fractions, press section is by the big roller in the road of suction baby press+2 Footpath squeezing composition, goes out splenium mass dryness fraction for 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding into not The paper roll of same specification, into storehouse.Table glue surface layer starch concentration is 4-7%, and bottom concentration is 2-5%.
ASA sizing agents and Cypres produce synergy to control into paper water imbibition, front water suction 20-32g/ m2, reverse side water suction 30-41g/m2, hot water infiltration 1300-1900s.
Paper formation degree after press polish is more preferable, is advantageous to overlay film production technology.
Preferably, in the chemicals that paper approach system adds under tectorial paper, ASA sizing agents are 2kg/ ton paper, on tectorial paper The table glue surface layer starch concentration of paper is 5%, and bottom concentration is 3%, hot water infiltration 1500-1800s.
Beneficial effects of the present invention are as follows：
1. the present invention uses waste paper as raw material, raw material of papermaking fiber is saved, meanwhile, waste paper pulp-making is former compared to timber and careless class To expect slurrying, reduce cooking process, save the consumption of chemicals, no black liquor produces, and significantly reduces pollutional load, so, Investment reduction of the present invention, the energy, pollution abatement are saved, meets national environmental protection policy.
2. the generation of new varieties, enriching plasterboard species, the different market demands is met, adds product competition Power.
Embodiment
The production technology of paper and lower paper on a kind of tectorial paper, including pulping workshop section, slurrying workshop section and papermaking workshop section,
The first step, pulping workshop section, including on tectorial paper under the pulping workshop section of paper and tectorial paper paper pulping workshop section；Wherein, overlay film The pulping workshop section production technology of paper, comprises the following steps on paper：Pass through chain after the useless evacuation waste paper bag by bale opener of 100% state Plate conveyer is sent into rotary drum pulping machine, adds 35-40 DEG C of warm water, size degradation is into the underflow that mass concentration is 4%, through highly concentrated slagging-off Device removes the heavy seeds in slurry, such as iron nail, stone, glass etc., standby into slurry tower；
The pulping workshop section production technology of paper under tectorial paper, including Deinking Pulp production line pulping and OCC production line pulpings, wherein, take off Ink starches production line pulping technological parameter：Rotary drum pulping is added after the U.S. useless uniform mixing of+70% state report of 9# that raw material proportioning is 30% Machine, and add deinking chemicals：Deinking agent 0.7kg/ ton waste paper, hydrogen peroxide 23kg/ ton waste paper, sodium hydroxide 18kg/ ton waste paper, Sodium metasilicate 8kg/ ton waste paper, waste paper and chemicals reaction, mashing, form the underflow that weight concentration is 4%, through height in pulper Dense scummer removes the heavy seeds in slurry, such as iron nail, stone, glass etc., and it is standby to get to pulp storage tank；
The technological parameter of OCC production line pulpings is identical with the pulping workshop section processing parameter of paper on tectorial paper.
Second step, slurrying workshop section, including on tectorial paper under the slurrying workshop section of paper and tectorial paper paper slurrying workshop section；Wherein, The slurrying workshop section production technology of paper, comprises the following steps on tectorial paper：The slurry that paper pulping workshop is come on tectorial paper, first pass through thick Sieve screening slurry, tail slurry send rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry is logical Long, medium and short fibre stuff is formed after the classification of classifying screen twice, long stuff is after too low dense scummer removes tiny gravel Slurry is further screened by fine screen, then polydisc thickener enters heat partition system after being concentrated into 10% mass concentration, control 100-105 DEG C of temperature, disk mill gap 0.15mm, disperse sicker to naked eyes None- identified, be beaten to be formed finally by mill and beat The slurry that the degree of beating is 40 ± 2 ° of SR, concentration is 4% is standby；Middle fibre stuff passes through low dense scummer, polydisc thickener, heat partition After system, mill mashing, it is standby to form the slurry that beating degree is 40 ± 2 ° of SR, concentration is 4%；Short stock dense removes through too low After slag device and polydisc thickener, it is standby to form the slurry that concentration is 4%；
The slurrying workshop section of paper under tectorial paper, including the slurrying of Deinking Pulp production line and OCC production line slurrying, wherein, Deinking Pulp production Line pulping process parameter is：The slurry that paper Deinking Pulp production line comes under tectorial paper first passes through scalping screening slurry, and tail slurry sends ONP back to Rotary drum pulping machine, good slurry enter flotation cell, then the ink flotation discharge system in newspaper is removed thin by low dense scummer Slurry is further screened by fine screen after small gravel, subsequently enters after polydisc thickener is concentrated into 10% mass concentration and enters heat Decentralized system, 105-110 DEG C of temperature of control, disk mill gap 0.13mm, disperse sicker to naked eyes None- identified, be finally sent into slurry Tower is standby；
OCC production line pulping process parameters are：The slurry that paper OCC production lines come under tectorial paper first passes through scalping screening slurry, tail Slurry sends OCC rotary drum pulping machines, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry passes through gradation sizing Long and short fibre stuff is formed after level, long stuff further sieves after too low dense scummer removes tiny gravel by fine screen Slurry is selected, then polydisc thickener enters heat partition system, 100-105 DEG C of temperature of control, disk after being concentrated into 10% mass concentration Gap 0.15mm is ground, disperses sicker to naked eyes None- identified, is beaten to form beating degree as 40 ± 2 ° of SR, dense finally by mill Spend standby for 4% slurry；It is standby to form the slurry that concentration is 4% after too low dense scummer and polydisc thickener for short stock With.
3rd step, papermaking workshop section, including on tectorial paper under the papermaking workshop section of paper and tectorial paper paper papermaking workshop section；Wherein, The papermaking workshop section production technology of paper, comprises the following steps on tectorial paper：The slurry that paper slip house comes on tectorial paper passes through streaming After system, i.e. fan pump, pressurized screen, form the slurry that concentration is 0.4%-0.8% and online is sprayed by head box, approach system adds It is as follows to enter chemicals：Starch 2kg/ ton paper in slurry is added before fan pump, aluminum sulfate 8kg/ tons paper, ASA applying glues are added after fan pump Agent 1.5-2.5kg/ ton paper, dry powder retention agent 0.2kg/ ton paper is added before pressurized screen, filter aid 0.4kg/ tons are added after pressurized screen Paper.Wet end uses 3 layers of net（Face, core, bottom）, surface layer is middle fine slurry vermicelli, and core, bottom are long and short fiber in mass ratio 5:6 mixing Slurry, it is dehydrated to 10-14% mass dryness fractions, press section by dewatering elements and is made up of the road of suction baby press+2 press with large-roll-diameter, go out splenium Mass dryness fraction is 46%, by front baking, table glue, after baking, press polish, batch, the most paper roll through rewinding machine rewinding into different size afterwards, enter Storehouse.Table glue surface layer starch concentration is 3-5%, and bottom concentration is 1-3%.
ASA sizing agents and Cypres produce synergy to control into paper water imbibition, front water suction 28-37g/ ㎡, reverse side water suction 39-46g/ ㎡, hot water infiltration 1200-1550s.
Paper formation degree after press polish is more preferable, is advantageous to overlay film production technology；
Preferably, in the chemicals that paper approach system adds on tectorial paper, ASA sizing agents are 2kg/ ton paper, paper on tectorial paper Table glue surface layer starch concentration is 4%, and bottom concentration is 2%, hot water infiltration 1200-1500s；
The papermaking workshop section production technology of paper, comprises the following steps under tectorial paper：The slurry that paper slip house comes under tectorial paper passes through After approach system, i.e. fan pump, pressurized screen, form the slurry that concentration is about 0.4%-0.8% and online, streaming are sprayed by head box It is as follows that system adds chemicals：Starch 2kg/ ton paper in slurry is added before fan pump, add after fan pump aluminum sulfate 12kg/ tons paper, ASA sizing agent 1-2.5kg/ ton paper, dry powder retention agent 0.25kg/ ton paper is added before pressurized screen, filter aid is added after pressurized screen 0.5kg/ ton paper.Wet end uses 4 layers of net（Face, lining, core, bottom）, surface layer is Deinking Pulp vermicelli, and lining, core, bottom are that OCC length is fine Dimension in mass ratio 6:4 mixed slurries, it is dehydrated by dewatering elements to 10-14% mass dryness fractions, press section is by the big roller in the road of suction baby press+2 Footpath squeezing composition, goes out splenium mass dryness fraction for 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding into not The paper roll of same specification, into storehouse.Table glue surface layer starch concentration is 4-7%, and bottom concentration is 2-5%.
ASA sizing agents and Cypres produce synergy to control into paper water imbibition, front water suction 20-32g/ m2, reverse side water suction 30-41g/m2, hot water infiltration 1300-1900s.
Paper formation degree after press polish is more preferable, is advantageous to overlay film production technology.
Preferably, in the chemicals that paper approach system adds under tectorial paper, ASA sizing agents are 2kg/ ton paper, on tectorial paper The table glue surface layer starch concentration of paper is 5%, and bottom concentration is 3%, hot water infiltration 1500-1800s.
Embodiment, produce paper test data on tectorial paper
First, pilot project
Produce paper on tectorial paper.
2nd, process is tested
1. slurry pre-processes
OCC processing parameters：The whole nation of raw material proportioning 100% is given up, and it is 6 to control the fine classification mass ratio of length:4, heat partition 100-105 DEG C of temperature, disk mill gap 0.15mm, standby in 40 ± 2 ° of SR by beating degree control after mill, other techniques are constant.
2. papermaking
Wet end chemistry introduces ASA sizing agents on the basis of existing chemicals, is added after fan pump, and addition 1.5 → 2.0 → 2.5kg/ ton paper；Gelatinized starch surface layer concentration 5% → 4% → 3%, bottom concentration 3% → 2% → 1%；Control into paper water suction front≤ 37g/ ㎡, reverse side 35-45g/ ㎡, hot water infiltration 1200-1500s.
3rd, test data
Time Data Remarks
8:00 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1200s ASA：1.5kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
8:30 Absorb water positive 29g/ ㎡, reverse side 40g/ ㎡, hot water infiltration 1200s
9:00 Absorb water positive 28g/ ㎡, reverse side 40g/ ㎡, hot water infiltration 1250s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
9:30 Absorb water positive 29g/ ㎡, reverse side 38g/ ㎡, hot water infiltration 1300s
10:00 Absorb water positive 29g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1300s
10:30 Absorb water positive 31g/ ㎡, reverse side 42g/ ㎡, hot water infiltration 1300s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 4%, bottom concentration 2%
11:00 Absorb water positive 32g/ ㎡, reverse side 43g/ ㎡, hot water infiltration 1350s
11:30 Absorb water positive 34g/ ㎡, reverse side 44g/ ㎡, hot water infiltration 1300s
12:00 Absorb water positive 34g/ ㎡, reverse side 43g/ ㎡, hot water infiltration 1300s
12:30 Absorb water positive 36g/ ㎡, reverse side 45g/ ㎡, hot water infiltration 1300s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 3%, bottom concentration 1%
13:00 Absorb water positive 37g/ ㎡, reverse side 46g/ ㎡, hot water infiltration 1400s
13:30 Absorb water positive 35g/ ㎡, reverse side 44g/ ㎡, hot water infiltration 1350s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 4%, bottom concentration 2%
14:00 Absorb water positive 34g/ ㎡, reverse side 44g/ ㎡, hot water infiltration 1300s
14:30 Absorb water positive 35g/ ㎡, reverse side 45g/ ㎡, hot water infiltration 1500s ASA：2.5kg/ ton paper；Gelatinized starch：Surface layer concentration 4%, bottom concentration 2%
15:00 Absorb water positive 36g/ ㎡, reverse side 45g/ ㎡, hot water infiltration 1550s
15:30 Absorb water positive 34g/ ㎡, reverse side 45g/ ㎡, hot water infiltration 1400s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 4%, bottom concentration 2%
16:00 Absorb water positive 33g/ ㎡, reverse side 43g/ ㎡, hot water infiltration 1350s
16:30 Absorb water positive 34g/ ㎡, reverse side 43g/ ㎡, hot water infiltration 1350s
4th, test result analysis
1st, when ASA is lifted to 1550s from 1.5 → 2.0 → 2.5kg/ ton paper, hot water infiltration from 1200s, wherein dosage is in 2.0kg/ During ton paper, hot water seepage stability is between required value, excessive or too small dosage, and hot water infiltration can be caused too high or too low, reached Less than requiring；
2nd, gelatinized starch is worked as：Surface layer concentration 5% → 4% → 3%, during bottom concentration 3% → 2% → 1%, surface layer water suction from 28g/ ㎡ → 37g/ ㎡, bottom water suction 39g/ ㎡ → 46g/ ㎡, dosage is excessive or too small, on the one hand influences water imbibition size, the opposing party's face Ring ASA sizing efficiencies.
5th, conclusion
By this experiment, the technique that have found paper on production tectorial paper, ASA will strictly control dosage, a side with gelatinized starch Face meets paper properties requirement, on the other hand reduces chemicals usage as far as possible, to reduce production cost, improves into paper profit, Meanwhile be found by experiment that, ASA cooperates with addition with gelatinized starch, can influence into the water suction of paper positive and negative and hot water infiltration Value, it is 2kg/ ton paper to produce paper ASA sizing agents addition on overlay film, and table glue surface layer starch concentration is 4%, and bottom concentration is 2%.
Embodiment, paper test data under tectorial paper
First, pilot project
Produce paper under tectorial paper.
2nd, process is tested
1. slurry pre-processes
Deinking Pulp production line process parameter：Rotary drum pulping is added after the U.S. useless uniform mixing of+70% state report of 9# that raw material proportioning is 30% Machine, and add deinking chemicals：Deinking agent 0.7kg/ ton waste paper, hydrogen peroxide 23kg/ ton waste paper, sodium hydroxide 18kg/ ton waste paper, Sodium metasilicate 8kg/ ton waste paper, other techniques are constant.
OCC processing parameters：The whole nation of raw material proportioning 100% is given up, and it is 6 to control the fine classification mass ratio of length:4, heat 100-105 DEG C of dispersion temperature, disk mill gap 0.15mm, standby, other techniques are controlled in 40 ± 2 ° of SR by beating degree after mill It is constant.
2. papermaking
Wet end chemistry introduces ASA sizing agents on the basis of existing chemicals, is added after fan pump, and addition 1.0 → 1.5 → 2.0 → 2.5kg/ ton paper；Gelatinized starch surface layer concentration 7% → 6% → 5% → 4%, bottom concentration 5% → 4% → 3% → 2%；Control into Paper water suction front≤30g/ ㎡, reverse side 30-40g/ ㎡, hot water infiltration 1500-1800s.
3rd, test data
Time Data Remarks
8:00 Absorb water positive 20g/ ㎡, reverse side 30g/ ㎡, hot water infiltration 1300s ASA：1.0kg/ ton paper；Gelatinized starch：Surface layer concentration 7%, bottom concentration 5%
8:30 Absorb water positive 22g/ ㎡, reverse side 31g/ ㎡, hot water infiltration 1400s ASA：1.5kg/ ton paper；Gelatinized starch：Surface layer concentration 7%, bottom concentration 5%
9:00 Absorb water positive 23g/ ㎡, reverse side 31g/ ㎡, hot water infiltration 1450s
9:30 Absorb water positive 23g/ ㎡, reverse side 32g/ ㎡, hot water infiltration 1500s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 7%, bottom concentration 5%
10:00 Absorb water positive 23g/ ㎡, reverse side 33g/ ㎡, hot water infiltration 1550s
10:30 Absorb water positive 23g/ ㎡, reverse side 33g/ ㎡, hot water infiltration 1550s
11:00 Absorb water positive 25g/ ㎡, reverse side 34g/ ㎡, hot water infiltration 1550s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 6%, bottom concentration 4%
11:30 Absorb water positive 26g/ ㎡, reverse side 37g/ ㎡, hot water infiltration 1600s
12:00 Absorb water positive 26g/ ㎡, reverse side 36g/ ㎡, hot water infiltration 1650s
12:30 Absorb water positive 27g/ ㎡, reverse side 36g/ ㎡, hot water infiltration 1650s
13:00 Absorb water positive 28g/ ㎡, reverse side 37g/ ㎡, hot water infiltration 1650s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
13:30 Absorb water positive 28g/ ㎡, reverse side 37g/ ㎡, hot water infiltration 1700s
14:00 Absorb water positive 29g/ ㎡, reverse side 38g/ ㎡, hot water infiltration 1700s
14:30 Absorb water positive 29g/ ㎡, reverse side 38g/ ㎡, hot water infiltration 1750s
15:00 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1750s
15:30 Absorb water positive 28g/ ㎡, reverse side 38g/ ㎡, hot water infiltration 1750s
16:00 Absorb water positive 30g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1750s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 4%, bottom concentration 2%
16:30 Absorb water positive 31g/ ㎡, reverse side 41g/ ㎡, hot water infiltration 1800s
17:00 Absorb water positive 32g/ ㎡, reverse side 40g/ ㎡, hot water infiltration 1850s
17:30 Absorb water positive 29g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1800s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
18:00 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1800s
18:30 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1850s ASA：2.5kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
19:00 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1900s
19:30 Absorb water positive 28g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1800s ASA：2.0kg/ ton paper；Gelatinized starch：Surface layer concentration 5%, bottom concentration 3%
20:00 Absorb water positive 29g/ ㎡, reverse side 39g/ ㎡, hot water infiltration 1750s
20:30 Absorb water positive 28g/ ㎡, reverse side 38g/ ㎡, hot water infiltration 1750s
4th, test result analysis
1. when ASA is from 1.0 → 1.5 → 2.0 → 2.5kg/ ton paper, hot water infiltration is lifted to 1900s, wherein dosage from 1300s to exist During 2.0kg/ ton paper, hot water seepage stability is between required value, excessive or too small dosage, and hot water can be caused to permeate too high or mistake It is low, do not reach requirement；
2. work as gelatinized starch：Surface layer concentration 7% → 6% → 5% → 4%, during bottom concentration 5% → 4% → 3% → 2%, surface layer water suction from 20g/ ㎡ → 32g/ ㎡, bottom water suction 30g/ ㎡ → 41g/ ㎡, dosage is excessive or too small, on the one hand influences water imbibition size, separately On the one hand ASA sizing efficiencies are affected.
5th, conclusion
By this experiment, the technique that have found paper under production tectorial paper, ASA will strictly control dosage, a side with gelatinized starch Face meets paper properties requirement, on the other hand reduces chemicals usage as far as possible, to reduce production cost, improves into paper profit, Meanwhile be found by experiment that, ASA cooperates with addition with gelatinized starch, can influence into the water suction of paper positive and negative and hot water infiltration Value, it is 2kg/ ton paper to produce paper ASA sizing agents addition under overlay film, and table glue surface layer starch concentration is 5%, and bottom concentration is 3%.

Claims (10)

  1. A kind of 1. production technology of paper and lower paper on tectorial paper, it is characterised in that：Including pulping workshop section, slurrying workshop section and paper maker Section；
    Wherein, pulping workshop section, which includes the pulping workshop section of paper and the pulping workshop section of paper under tectorial paper, slurrying workshop section on tectorial paper, includes On tectorial paper under the slurrying workshop section of paper and tectorial paper paper slurrying workshop section, papermaking workshop section include on tectorial paper the papermaking workshop section of paper and The papermaking workshop section of paper under tectorial paper；
    Wherein, the pulping workshop section of paper includes Deinking Pulp production line pulping and OCC production line pulpings under tectorial paper, paper under tectorial paper Slurrying workshop section includes the slurrying of Deinking Pulp production line and OCC production line slurrying.
  2. 2. the production technology of paper and lower paper on a kind of tectorial paper according to claim 1, it is characterised in that：Paper on tectorial paper Pulping workshop section production technology, comprise the following steps：After the useless evacuation waste paper bag by bale opener of 100% state, conveyed by carrier bar Machine is sent into rotary drum pulping machine, adds 35-40 DEG C of warm water, and size degradation removes into the underflow that mass concentration is 4% through HC Cleaner Heavy seeds in slurry, it is standby into slurry tower；
    Deinking Pulp production line pulping technological parameter under tectorial paper in the pulping workshop section of paper is：9# that raw material proportioning is 30% is U.S. useless+ 70% state report uniformly after mixing, adds rotary drum pulping machine, and adds deinking chemicals, in pulper waste paper and chemicals reaction, Mashing, forms the underflow that weight concentration is 4%, removes the heavy seeds in slurry through HC Cleaner, it is standby to get to pulp storage tank；Cover The pulping workshop section production technology phase of paper on OCC production line pulping technological parameters and tectorial paper under film paper in the pulping workshop section of paper Together.
  3. 3. the production technology of paper and lower paper on a kind of tectorial paper according to claim 1, it is characterised in that：Paper on tectorial paper Slurrying workshop section production technology, comprise the following steps：The slurry that paper pulping workshop is come on tectorial paper, first pass through scalping screening slurry Material, tail slurry send rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry by dividing twice Long, medium and short fibre stuff is formed after level sieve classification, long stuff is after too low dense scummer removes tiny gravel, by essence Sieve further screens slurry, after then polydisc thickener is concentrated into 10% mass concentration, into heat partition system, controls temperature 100-105 DEG C, disk mill gap 0.15mm, disperse sicker, it is 40 ± 2 ° of SR, concentration to be beaten finally by mill and to form beating degree It is standby for 4% slurry；After middle fibre stuff is by low dense scummer, polydisc thickener, heat partition system, mill mashing, formed The slurry that beating degree is 40 ± 2 ° of SR, concentration is 4% is standby；Short stock shape after too low dense scummer and polydisc thickener It is standby into the slurry that concentration is 4%；
    Deinking Pulp production line pulping process parameter under tectorial paper in the slurrying workshop section of paper is：Paper Deinking Pulp production line under tectorial paper The slurry come, scalping screening slurry is first passed through, tail slurry sends ONP rotary drum pulping machines back to, and good slurry enters flotation cell, by the oil in newspaper Black flotation discharge system, after then removing tiny gravel by low dense scummer, slurry is further screened by fine screen, with laggard Enter polydisc thickener, after being concentrated into 10% mass concentration, into heat partition system, 105-110 DEG C of temperature of control, disk mill gap 0.13mm, disperse sicker, it is standby to be finally sent into slurry tower；
    OCC production line pulping process parameters under tectorial paper in the slurrying workshop section of paper are：The slurry that paper OCC production lines come under tectorial paper Material, first passes through scalping screening slurry, and tail slurry sends OCC rotary drum pulping machines, plastic sheet back to by the fiber of slag draining and separating machine separator well Discharge system；Good slurry forms long and short fibre stuff after being classified by classifying screen, long and short fibre stuff passes through and paper on tectorial paper Long and short fibre stuff identical handling process in slurrying workshop section, obtains standby slurry.
  4. 4. the production technology of paper and lower paper on a kind of tectorial paper according to claim 1, it is characterised in that：Paper on tectorial paper And the papermaking workshop section of lower paper, comprise the following steps：The slurry that paper slip house comes under paper slip house and tectorial paper on tectorial paper Respectively by respective approach system, i.e., after fan pump, pressurized screen, the slurry that concentration is about 0.4%-0.8% is formed respectively, respectively Sprayed and surfed the Net by head box, approach system is separately added into chemicals：Starch in slurry is added before fan pump, sulphur is added after fan pump Sour aluminium and ASA sizing agent, dry powder retention agent is separately added into before pressurized screen, filter aid is separately added into after pressurized screen, passes through net respectively After portion's composite molding, it is dehydrated by dewatering elements to 10-14% mass dryness fractions, press section is by the road of suction baby press+2 press with large-roll-diameter group Into, go out splenium mass dryness fraction for 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding into different size Paper roll, into storehouse.
  5. 5. the production technology of paper and lower paper on a kind of tectorial paper according to claim 2, it is characterised in that：Paper under tectorial paper The deinking chemicals added in Deinking Pulp production line in pulping workshop section include：Deinking agent 0.7kg/ ton waste paper, hydrogen peroxide 23kg/ Ton waste paper, sodium hydroxide 18kg/ ton waste paper, sodium metasilicate 8kg/ ton waste paper.
  6. 6. the production technology of paper and lower paper on a kind of tectorial paper according to claim 4, it is characterised in that：Paper on tectorial paper And the chemicals that approach system adds in Xia Zhi papermaking workshop section is respectively：The chemicals that paper approach system adds on tectorial paper：Slurry Interior starch 2kg/ ton paper, aluminum sulfate 8kg/ ton paper, ASA sizing agent 1.5-2.5kg/ ton paper, dry powder retention agent 0.2kg/ ton paper, help Filtering agent 0.4kg/ ton paper；The chemicals that paper approach system adds under tectorial paper：Starch 2kg/ ton paper in slurry, aluminum sulfate 12kg/ tons Paper, ASA sizing agent 1-2.5kg/ ton paper, dry powder retention agent 0.25kg/ ton paper, filter aid 0.5kg/ ton paper.
  7. 7. the production technology of paper and lower paper on a kind of tectorial paper according to claim 4, it is characterised in that：Paper on tectorial paper Wet end is middle fine slurry vermicelli using face, core, the three-layer network at bottom, surface layer, and core, bottom are long and short fiber in mass ratio 5:6 mixing slurries Material.
  8. 8. the production technology of paper and lower paper on a kind of tectorial paper according to claim 4, it is characterised in that：Paper under tectorial paper Wet end be Deinking Pulp vermicelli using face, lining, core, the four-layer network at bottom, surface layer, lining, core, bottom for OCC long and short fibers in mass ratio 6:4 mixed slurries.
  9. 9. the production technology of paper and lower paper on a kind of tectorial paper according to claim 4, it is characterised in that：Paper on tectorial paper Table glue surface layer starch concentration be 3-5%, bottom concentration is 1-3%, front water suction 28-37g/m2, reverse side water suction 39-46g/m2, heat Water penetration 1200-1550s；The table glue surface layer starch concentration of paper is 4-7% under tectorial paper, and bottom concentration is 2-5%, front water suction 20-32g/m2, reverse side water suction 30-41g/m2, hot water infiltration 1300-1900s.
  10. 10. the production technology of paper and lower paper on a kind of tectorial paper according to claim 4, it is characterised in that：On tectorial paper In the chemicals that paper approach system adds, ASA sizing agents are 2kg/ ton paper, and the table glue surface layer starch concentration of paper is on tectorial paper 4%, bottom concentration is 2%, hot water infiltration 1200-1500s；In the chemicals that paper approach system adds under tectorial paper, ASA sizing agents For 2kg/ ton paper, the table glue surface layer starch concentration of paper is 5% on tectorial paper, and bottom concentration is 3%, hot water infiltration 1500-1800s.
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Cited By (2)

* Cited by examiner, † Cited by third party
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CN110552236A (en) * 2019-09-09 2019-12-10 杭州海鑫纸业有限公司 Black paper and preparation process thereof
CN111501391A (en) * 2020-04-30 2020-08-07 山鹰国际控股股份公司 Method for improving slurry quality

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Publication number Priority date Publication date Assignee Title
CN101818465B (en) * 2010-04-26 2012-01-18 泰山石膏股份有限公司 Process for making light-weight high-strength common gypsum board mask paper
CN101824764B (en) * 2010-04-26 2012-01-18 泰山石膏股份有限公司 Production process of feather-weight high-strength fireproof plaster board mask paper
CN106638110B (en) * 2016-11-17 2019-05-17 山西强伟纸业有限公司 A kind of production technology of high whiteness protecting paper of gypsum board
CN106555359B (en) * 2016-11-17 2019-02-05 山西强伟纸业有限公司 A kind of production technology increasing protecting paper of gypsum board intensity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110552236A (en) * 2019-09-09 2019-12-10 杭州海鑫纸业有限公司 Black paper and preparation process thereof
CN110552236B (en) * 2019-09-09 2021-09-24 杭州海鑫纸业有限公司 Black paper and preparation process thereof
CN111501391A (en) * 2020-04-30 2020-08-07 山鹰国际控股股份公司 Method for improving slurry quality

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