CN107447566B - 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
CN107447566B
CN107447566B CN201710670161.5A CN201710670161A CN107447566B CN 107447566 B CN107447566 B CN 107447566B CN 201710670161 A CN201710670161 A CN 201710670161A CN 107447566 B CN107447566 B CN 107447566B
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China
Prior art keywords
paper
tectorial
slurry
workshop section
pulping
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CN201710670161.5A
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CN107447566A (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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    • 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, it can solve the problems, such as that the performances such as the water suction of prior art protecting paper of gypsum board and hot water infiltration are 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 pulping 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, it is energy saving, 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 fields, and in particular to the production technology of paper and lower paper on a kind of tectorial paper.
Background technique
Thistle board is at present using commonplace a kind of Novel ceiling ornament materials, it has lightweight, fire prevention, prevents The advantages that shake, insulation, good processing performance, and it is easy for construction, and removable performance is good, good decorating effect, can increase Build usable floor area.Abundant demand with the sustainable development and people of building trade to 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 puts forward new requirements the performance of the water suction of protecting paper of gypsum board and hot water infiltration etc..
Summary of the invention
The present invention mentions aiming at the problem that prior art protecting paper of gypsum board absorbs water and the performances such as hot water infiltration are unsatisfactory for requiring For the production technology of paper and lower paper on a kind of tectorial paper.
The present invention adopts the following technical scheme:
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, the pulping workshop section of paper under pulping workshop section and tectorial paper including paper on tectorial paper；Wherein, The pulping workshop section production technology of paper on tectorial paper includes the following steps: that 100% state is useless and evacuates waste paper Bao Houtong by bale opener It crosses chain scraper conveyor and is sent into rotary drum pulping machine, 35-40 DEG C of warm water, the underflow that size degradation is 4% at mass concentration, through highly concentrated is added Scummer removes heavy seeds, such as iron nail, stone, glass etc. in slurry, spare into slurry tower；
The pulping workshop section production technology of paper under tectorial paper, including Deinking Pulp production line pulping and OCC production line pulping, In, Deinking Pulp production line pulping technological parameter are as follows: rotary drum is added in useless+70% state report of the 9# U.S. that raw material proportioning is 30% after evenly mixing Pulper, and deinking chemicals are added: 0.7kg/ tons of waste paper of deinking agent, 23kg/ tons of waste paper of hydrogen peroxide, 18kg/ tons of sodium hydroxide Waste paper, 8kg/ tons of waste paper of sodium metasilicate, waste paper is reacted with chemicals, is beaten in pulper, forms the underflow that weight concentration is 4%, Heavy seeds, such as iron nail, stone, glass etc. in slurry are removed through HC Cleaner, it is spare to get to pulp storage tank；
The technological parameter of OCC production line pulping is identical with the pulping workshop section processing parameter of paper on tectorial paper.
Second step, slurrying workshop section, the slurrying workshop section of paper under slurrying workshop section and tectorial paper including paper on tectorial paper；Wherein, The slurrying workshop section production technology of paper on tectorial paper includes the following steps: the slurry that paper pulping workshop is come on tectorial paper, first passes 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, control after being concentrated into 10% mass concentration 100-105 DEG C of temperature, disk mill gap 0.15mm, dispersion sicker to naked eyes can not identify, are 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 spare；Middle fibre stuff passes through low dense scummer, polydisc thickener, heat partition After system, mill mashing, it is spare to form the slurry that beating degree is 40 ± 2 ° of SR, concentration is 4%；Short stock dense is removed through too low After slag device and polydisc thickener, it is spare 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 are as follows: the slurry that paper Deinking Pulp production line comes under tectorial paper first passes through scalping screening slurry, and tail slurry is sent ONP rotary drum pulping machine is returned, good slurry enters flotation cell, by the ink flotation discharge system in newspaper, then passes through low dense scummer It removes and further screens slurry by fine screen after tiny gravel, after subsequently entering the mass concentration that polydisc thickener is concentrated into 10% Into heat partition system, 105-110 DEG C of temperature, disk mill gap 0.13mm are controlled, dispersion sicker to naked eyes can not identify, finally It is spare to be sent into slurry tower；
OCC production line pulping process parameter are as follows: the slurry that paper OCC production line comes under tectorial paper first passes through scalping screening slurry Material, tail slurry send OCC rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry is by dividing Form long and short fibre stuff after grade sieve classification, long stuff after too low dense scummer removes tiny gravel by fine screen into One step screens slurry, and then polydisc thickener enters heat partition system after being concentrated into 10% mass concentration, controls temperature 100- 105 DEG C, disk mill gap 0.15mm, dispersion sicker to naked eyes can not identify that being beaten finally by mill and forming beating degree is 40 ± 2 ° of SR, the slurry that concentration is 4% are spare；For short stock after too low dense scummer and polydisc thickener, forming concentration is 4% Slurry it is spare.
Third step, papermaking workshop section, the papermaking workshop section of paper under papermaking workshop section and tectorial paper including paper on tectorial paper；Wherein, The papermaking workshop section production technology of paper on tectorial paper, the slurry for including the following steps: that paper slip house comes on tectorial paper pass through streaming After system, i.e. fan pump, pressurized screen, forms 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: 2kg/ tons of paper of starch in starching being added before fan pump, aluminum sulfate 8kg/ tons of paper, ASA sizing are added after fan pump 0.2kg/ ton paper of dry powder retention agent, filter aid 0.4kg/ tons of addition after pressurized screen are added before pressurized screen for 1.5-2.5kg/ tons of paper of agent Paper.Wet end uses 3 layers of net (face, core, bottom), and surface layer is middle fine slurry vermicelli, and core, bottom are long and short fiber 5:6 in mass ratio mixing Slurry is dehydrated by dewatering elements to 10-14% mass dryness fraction, and press section is made of+2 road press with large-roll-diameter of suction baby press, out splenium Mass dryness fraction is 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding at the paper roll of different size, enter Storehouse.Table glue surface layer starch concentration is 3-5%, and bottom concentration is 1-3%.
ASA sizing agent and Cypres generate synergistic effect to control into paper water imbibition, front water suction 28-37g/ ㎡, reverse side water suction 39-46g/ ㎡, hot water permeate 1200-1550s.
Paper formation degree after press polish is more preferable, is conducive to overlay film production technology；
Preferably, in the chemicals that paper approach system is added on tectorial paper, ASA sizing agent is 2kg/ tons of paper, on tectorial paper The table glue surface layer starch concentration of paper is 4%, and bottom concentration is 2%, and hot water permeates 1200-1500s；
The papermaking workshop section production technology of paper under tectorial paper includes the following steps: the slurry that paper slip house comes under tectorial paper By approach system, i.e., after fan pump, pressurized screen, forms the slurry that concentration is about 0.4%-0.8% and online is sprayed by head box, It is as follows that chemicals is added in approach system: 2kg/ tons of paper of starch in starching being added before fan pump, are added aluminum sulfate 12kg/ tons after fan pump 0.25kg/ tons of paper of dry powder retention agent are added before pressurized screen, filter aid is added after pressurized screen for 1-2.5kg/ tons of paper, ASA sizing agent paper 0.5kg/ tons of paper.Wet end uses 4 layers of net (face, lining, core, bottom), and surface layer is Deinking Pulp vermicelli, and lining, core, bottom are that OCC length is fine Dimension 6:4 mixed slurry in mass ratio, is dehydrated by dewatering elements to 10-14% mass dryness fraction, press section is by the big roller in+2 road of suction baby press Diameter squeezing composition, out splenium mass dryness fraction be 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding at 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 agent and Cypres generate synergistic effect 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 conducive to overlay film production technology.
Preferably, in the chemicals that paper approach system is added under tectorial paper, ASA sizing agent is 2kg/ tons of paper, on tectorial paper The table glue surface layer starch concentration of paper is 5%, and bottom concentration is 3%, and hot water permeates 1500-1800s.
Beneficial effects of the present invention are as follows:
1. the present invention uses waste paper for raw material, raw material of papermaking fiber is saved, meanwhile, waste paper pulp-making, compared to timber and grass Class raw pulp, reduces cooking process, has saved the consumption of chemicals, and no black liquor generates, and significantly reduces pollutional load, institute With investment reduction of the present invention, energy saving, pollution abatement meets national environmental protection policy.
2. the generation of new varieties enriches plasterboard type, the different market demands is met, product competition is increased Power.
Specific 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, the pulping workshop section of paper under pulping workshop section and tectorial paper including paper on tectorial paper；Wherein, The pulping workshop section production technology of paper on tectorial paper includes the following steps: that 100% state is useless and evacuates waste paper Bao Houtong by bale opener It crosses chain scraper conveyor and is sent into rotary drum pulping machine, 35-40 DEG C of warm water, the underflow that size degradation is 4% at mass concentration, through highly concentrated is added Scummer removes heavy seeds, such as iron nail, stone, glass etc. in slurry, spare into slurry tower；
The pulping workshop section production technology of paper under tectorial paper, including Deinking Pulp production line pulping and OCC production line pulping, In, Deinking Pulp production line pulping technological parameter are as follows: rotary drum is added in useless+70% state report of the 9# U.S. that raw material proportioning is 30% after evenly mixing Pulper, and deinking chemicals are added: 0.7kg/ tons of waste paper of deinking agent, 23kg/ tons of waste paper of hydrogen peroxide, 18kg/ tons of sodium hydroxide Waste paper, 8kg/ tons of waste paper of sodium metasilicate, waste paper is reacted with chemicals, is beaten in pulper, forms the underflow that weight concentration is 4%, Heavy seeds, such as iron nail, stone, glass etc. in slurry are removed through HC Cleaner, it is spare to get to pulp storage tank；
The technological parameter of OCC production line pulping is identical with the pulping workshop section processing parameter of paper on tectorial paper.
Second step, slurrying workshop section, the slurrying workshop section of paper under slurrying workshop section and tectorial paper including paper on tectorial paper；Wherein, The slurrying workshop section production technology of paper on tectorial paper includes the following steps: the slurry that paper pulping workshop is come on tectorial paper, first passes 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, control after being concentrated into 10% mass concentration 100-105 DEG C of temperature, disk mill gap 0.15mm, dispersion sicker to naked eyes can not identify, are 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 spare；Middle fibre stuff passes through low dense scummer, polydisc thickener, heat partition After system, mill mashing, it is spare to form the slurry that beating degree is 40 ± 2 ° of SR, concentration is 4%；Short stock dense is removed through too low After slag device and polydisc thickener, it is spare 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 are as follows: the slurry that paper Deinking Pulp production line comes under tectorial paper first passes through scalping screening slurry, and tail slurry is sent ONP rotary drum pulping machine is returned, good slurry enters flotation cell, by the ink flotation discharge system in newspaper, then passes through low dense scummer It removes and further screens slurry by fine screen after tiny gravel, after subsequently entering the mass concentration that polydisc thickener is concentrated into 10% Into heat partition system, 105-110 DEG C of temperature, disk mill gap 0.13mm are controlled, dispersion sicker to naked eyes can not identify, finally It is spare to be sent into slurry tower；
OCC production line pulping process parameter are as follows: the slurry that paper OCC production line comes under tectorial paper first passes through scalping screening slurry Material, tail slurry send OCC rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；Good slurry is by dividing Form long and short fibre stuff after grade sieve classification, long stuff after too low dense scummer removes tiny gravel by fine screen into One step screens slurry, and then polydisc thickener enters heat partition system after being concentrated into 10% mass concentration, controls temperature 100- 105 DEG C, disk mill gap 0.15mm, dispersion sicker to naked eyes can not identify that being beaten finally by mill and forming beating degree is 40 ± 2 ° of SR, the slurry that concentration is 4% are spare；For short stock after too low dense scummer and polydisc thickener, forming concentration is 4% Slurry it is spare.
Third step, papermaking workshop section, the papermaking workshop section of paper under papermaking workshop section and tectorial paper including paper on tectorial paper；Wherein, The papermaking workshop section production technology of paper on tectorial paper, the slurry for including the following steps: that paper slip house comes on tectorial paper pass through streaming After system, i.e. fan pump, pressurized screen, forms 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: 2kg/ tons of paper of starch in starching being added before fan pump, aluminum sulfate 8kg/ tons of paper, ASA sizing are added after fan pump 0.2kg/ ton paper of dry powder retention agent, filter aid 0.4kg/ tons of addition after pressurized screen are added before pressurized screen for 1.5-2.5kg/ tons of paper of agent Paper.Wet end uses 3 layers of net (face, core, bottom), and surface layer is middle fine slurry vermicelli, and core, bottom are long and short fiber 5:6 in mass ratio mixing Slurry is dehydrated by dewatering elements to 10-14% mass dryness fraction, and press section is made of+2 road press with large-roll-diameter of suction baby press, out splenium Mass dryness fraction is 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding at the paper roll of different size, enter Storehouse.Table glue surface layer starch concentration is 3-5%, and bottom concentration is 1-3%.
ASA sizing agent and Cypres generate synergistic effect to control into paper water imbibition, front water suction 28-37g/ ㎡, reverse side water suction 39-46g/ ㎡, hot water permeate 1200-1550s.
Paper formation degree after press polish is more preferable, is conducive to overlay film production technology；
Preferably, in the chemicals that paper approach system is added on tectorial paper, ASA sizing agent is 2kg/ tons of paper, on tectorial paper The table glue surface layer starch concentration of paper is 4%, and bottom concentration is 2%, and hot water permeates 1200-1500s；
The papermaking workshop section production technology of paper under tectorial paper includes the following steps: the slurry that paper slip house comes under tectorial paper By approach system, i.e., after fan pump, pressurized screen, forms the slurry that concentration is about 0.4%-0.8% and online is sprayed by head box, It is as follows that chemicals is added in approach system: 2kg/ tons of paper of starch in starching being added before fan pump, are added aluminum sulfate 12kg/ tons after fan pump 0.25kg/ tons of paper of dry powder retention agent are added before pressurized screen, filter aid is added after pressurized screen for 1-2.5kg/ tons of paper, ASA sizing agent paper 0.5kg/ tons of paper.Wet end uses 4 layers of net (face, lining, core, bottom), and surface layer is Deinking Pulp vermicelli, and lining, core, bottom are that OCC length is fine Dimension 6:4 mixed slurry in mass ratio, is dehydrated by dewatering elements to 10-14% mass dryness fraction, press section is by the big roller in+2 road of suction baby press Diameter squeezing composition, out splenium mass dryness fraction be 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine rewinding at 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 agent and Cypres generate synergistic effect 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 conducive to overlay film production technology.
Preferably, in the chemicals that paper approach system is added under tectorial paper, ASA sizing agent is 2kg/ tons of paper, on tectorial paper The table glue surface layer starch concentration of paper is 5%, and bottom concentration is 3%, and hot water permeates 1500-1800s.
Embodiment produces paper test data on tectorial paper
One, pilot project
Produce paper on tectorial paper.
Two, process is tested
1. slurry pre-processes
OCC processing parameter: the whole nation of raw material proportioning 100% is useless, and controlling length fibre classification mass ratio is 6:4, heat 100-105 DEG C of dispersion temperature, disk mill gap 0.15mm control in 40 ± 2 ° of SR spare, other techniques by beating degree after mill It is constant.
2. papermaking
Wet end chemistry introduces ASA sizing agent on the basis of existing chemicals, is added after fan pump, additional amount 1.5 → 2.0 → 2.5kg/ tons of 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 permeate 1200-1500s.
Three, test data
Time Data Remarks
8:00 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1200s ASA:1.5kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
8:30 Absorb water front 29g/ ㎡, reverse side 40g/ ㎡, and hot water permeates 1200s
9:00 Absorb water front 28g/ ㎡, reverse side 40g/ ㎡, and hot water permeates 1250s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
9:30 Absorb water front 29g/ ㎡, reverse side 38g/ ㎡, and hot water permeates 1300s
10:00 Absorb water front 29g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1300s
10:30 Absorb water front 31g/ ㎡, reverse side 42g/ ㎡, and hot water permeates 1300s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 4%, bottom concentration 2%
11:00 Absorb water front 32g/ ㎡, reverse side 43g/ ㎡, and hot water permeates 1350s
11:30 Absorb water front 34g/ ㎡, reverse side 44g/ ㎡, and hot water permeates 1300s
12:00 Absorb water front 34g/ ㎡, reverse side 43g/ ㎡, and hot water permeates 1300s
12:30 Absorb water front 36g/ ㎡, reverse side 45g/ ㎡, and hot water permeates 1300s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 3%, bottom concentration 1%
13:00 Absorb water front 37g/ ㎡, reverse side 46g/ ㎡, and hot water permeates 1400s
13:30 Absorb water front 35g/ ㎡, reverse side 44g/ ㎡, and hot water permeates 1350s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 4%, bottom concentration 2%
14:00 Absorb water front 34g/ ㎡, reverse side 44g/ ㎡, and hot water permeates 1300s
14:30 Absorb water front 35g/ ㎡, reverse side 45g/ ㎡, and hot water permeates 1500s ASA:2.5kg/ tons of paper；Gelatinized starch: surface layer concentration 4%, bottom concentration 2%
15:00 Absorb water front 36g/ ㎡, reverse side 45g/ ㎡, and hot water permeates 1550s
15:30 Absorb water front 34g/ ㎡, reverse side 45g/ ㎡, and hot water permeates 1400s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 4%, bottom concentration 2%
16:00 Absorb water front 33g/ ㎡, reverse side 43g/ ㎡, and hot water permeates 1350s
16:30 Absorb water front 34g/ ㎡, reverse side 43g/ ㎡, and hot water permeates 1350s
Four, test result analysis
1, when ASA is from 1.5 → 2.0 → 2.5kg/ tons of paper, hot water infiltration is promoted from 1200s to 1550s, and wherein dosage exists When 2.0kg/ tons of paper, hot water seepage stability is between required value, excessive or too small dosage, will lead to hot water and permeates excessively high or mistake It is low, it does not reach requirement；
2, work as gelatinized starch: surface layer concentration 5% → 4% → 3%, when bottom concentration 3% → 2% → 1%, surface layer water suction is from 28g/ ㎡ → 37g/ ㎡, bottom water suction 39g/ ㎡ → 46g/ ㎡, dosage is excessive or too small, on the one hand influences water imbibition size, on the other hand Affect ASA sizing efficiency.
Five, conclusion
It is tested by this, the technique for having found paper on production tectorial paper, ASA and gelatinized starch want strict control dosage, On the one hand meet paper properties requirement, on the other hand reduce chemicals usage as far as possible, to reduce production cost, improve into paper benefit Profit, meanwhile, it is found by experiment that, ASA cooperates with addition with gelatinized starch, can influence into the water suction of paper front and back sides and hot water seeps Value thoroughly, producing paper ASA sizing agent additional amount on overlay film is 2kg/ tons of paper, and table glue surface layer starch concentration is 4%, and bottom concentration is 2%.
Embodiment, paper test data under tectorial paper
One, pilot project
Produce paper under tectorial paper.
Two, process is tested
1. slurry pre-processes
Deinking Pulp production line process parameter: rotary drum is added in useless+70% state report of the 9# U.S. that raw material proportioning is 30% after evenly mixing Pulper, and deinking chemicals are added: 0.7kg/ tons of waste paper of deinking agent, 23kg/ tons of waste paper of hydrogen peroxide, 18kg/ tons of sodium hydroxide Waste paper, 8kg/ tons of waste paper of sodium metasilicate, other techniques are constant.
OCC processing parameter: the whole nation of raw material proportioning 100% is useless, and controlling length fibre classification mass ratio is 6:4, heat 100-105 DEG C of dispersion temperature, disk mill gap 0.15mm control in 40 ± 2 ° of SR spare, other techniques by beating degree after mill It is constant.
2. papermaking
Wet end chemistry introduces ASA sizing agent on the basis of existing chemicals, is added after fan pump, additional amount 1.0 → 1.5 → 2.0 → 2.5kg/ tons of paper；Gelatinized starch surface layer concentration 7% → 6% → 5% → 4%, bottom concentration 5% → 4% → 3% → 2%；Control At paper water suction front≤30g/ ㎡, reverse side 30-40g/ ㎡, hot water permeates 1500-1800s.
Three, test data
Time Data Remarks
8:00 Absorb water front 20g/ ㎡, reverse side 30g/ ㎡, and hot water permeates 1300s ASA:1.0kg/ tons of paper；Gelatinized starch: surface layer concentration 7%, bottom concentration 5%
8:30 Absorb water front 22g/ ㎡, reverse side 31g/ ㎡, and hot water permeates 1400s ASA:1.5kg/ tons of paper；Gelatinized starch: surface layer concentration 7%, bottom concentration 5%
9:00 Absorb water front 23g/ ㎡, reverse side 31g/ ㎡, and hot water permeates 1450s
9:30 Absorb water front 23g/ ㎡, reverse side 32g/ ㎡, and hot water permeates 1500s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 7%, bottom concentration 5%
10:00 Absorb water front 23g/ ㎡, reverse side 33g/ ㎡, and hot water permeates 1550s
10:30 Absorb water front 23g/ ㎡, reverse side 33g/ ㎡, and hot water permeates 1550s
11:00 Absorb water front 25g/ ㎡, reverse side 34g/ ㎡, and hot water permeates 1550s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 6%, bottom concentration 4%
11:30 Absorb water front 26g/ ㎡, reverse side 37g/ ㎡, and hot water permeates 1600s
12:00 Absorb water front 26g/ ㎡, reverse side 36g/ ㎡, and hot water permeates 1650s
12:30 Absorb water front 27g/ ㎡, reverse side 36g/ ㎡, and hot water permeates 1650s
13:00 Absorb water front 28g/ ㎡, reverse side 37g/ ㎡, and hot water permeates 1650s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
13:30 Absorb water front 28g/ ㎡, reverse side 37g/ ㎡, and hot water permeates 1700s
14:00 Absorb water front 29g/ ㎡, reverse side 38g/ ㎡, and hot water permeates 1700s
14:30 Absorb water front 29g/ ㎡, reverse side 38g/ ㎡, and hot water permeates 1750s
15:00 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1750s
15:30 Absorb water front 28g/ ㎡, reverse side 38g/ ㎡, and hot water permeates 1750s
16:00 Absorb water front 30g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1750s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 4%, bottom concentration 2%
16:30 Absorb water front 31g/ ㎡, reverse side 41g/ ㎡, and hot water permeates 1800s
17:00 Absorb water front 32g/ ㎡, reverse side 40g/ ㎡, and hot water permeates 1850s
17:30 Absorb water front 29g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1800s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
18:00 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1800s
18:30 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1850s ASA:2.5kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
19:00 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1900s
19:30 Absorb water front 28g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1800s ASA:2.0kg/ tons of paper；Gelatinized starch: surface layer concentration 5%, bottom concentration 3%
20:00 Absorb water front 29g/ ㎡, reverse side 39g/ ㎡, and hot water permeates 1750s
20:30 Absorb water front 28g/ ㎡, reverse side 38g/ ㎡, and hot water permeates 1750s
Four, test result analysis
1. hot water infiltration is promoted from 1300s to 1900s, wherein using when ASA is from 1.0 → 1.5 → 2.0 → 2.5kg/ tons of paper For amount in 2.0kg/ tons of paper, hot water seepage stability is between required value, excessive or too small dosage, and it is excessively high to will lead to hot water infiltration Or it is too low, it does not reach requirement；
2. working as gelatinized starch: surface layer concentration 7% → 6% → 5% → 4%, when bottom concentration 5% → 4% → 3% → 2%, surface layer is inhaled Water is from 20g/ ㎡ → 32g/ ㎡, and bottom water suction 30g/ ㎡ → 41g/ ㎡, dosage is excessive or too small, and it is big on the one hand to influence water imbibition It is small, on the other hand affect ASA sizing efficiency.
Five, conclusion
It is tested by this, the technique for having found paper under production tectorial paper, ASA and gelatinized starch want strict control dosage, On the one hand meet paper properties requirement, on the other hand reduce chemicals usage as far as possible, to reduce production cost, improve into paper benefit Profit, meanwhile, it is found by experiment that, ASA cooperates with addition with gelatinized starch, can influence into the water suction of paper front and back sides and hot water seeps Value thoroughly, producing paper ASA sizing agent additional amount under overlay film is 2kg/ tons of paper, and table glue surface layer starch concentration is 5%, and bottom concentration is 3%.

Claims (7)

1. the production technology of paper and lower paper on a kind of tectorial paper, it is characterised in that: including pulping workshop section, slurrying workshop section and paper maker Section；
Wherein, pulping workshop section includes the pulping workshop section of paper on tectorial paper and the pulping workshop section of paper under tectorial paper, and slurrying workshop section includes On tectorial paper under the slurrying workshop section of paper and tectorial paper paper slurrying workshop section, papermaking workshop section include paper on tectorial paper papermaking workshop section 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 pulping, paper under tectorial paper under tectorial paper Slurrying workshop section includes the slurrying of Deinking Pulp production line and OCC production line slurrying；
The pulping workshop section production technology of paper on tectorial paper includes the following steps: that 100% state is useless and evacuates waste paper packet by bale opener Afterwards, rotary drum pulping machine is sent by chain scraper conveyor, 35-40 DEG C of warm water, the underflow that size degradation is 4% at mass concentration, warp is added HC Cleaner removes the heavy seeds in slurry, spare into slurry tower；
Deinking Pulp production line pulping technological parameter under tectorial paper in the pulping workshop section of paper are as follows: the 9# U.S. that raw material proportioning is 30% is useless+ 70% state reports after evenly mixing, and rotary drum pulping machine is added, and deinking chemicals are added, in pulper waste paper reacted with chemicals, Mashing, forms the underflow that weight concentration is 4%, removes the heavy seeds in slurry through HC Cleaner, it is spare to get to pulp storage tank；It covers The pulping workshop section production technology phase of paper on OCC production line pulping technological parameter and tectorial paper under film paper in the pulping workshop section of paper Together；
The slurrying workshop section production technology of paper on tectorial paper includes the following steps: the slurry that paper pulping workshop is come on tectorial paper, first passes through Scalping screening slurry is crossed, tail slurry sends rotary drum pulping machine, plastic sheet discharge system back to by the fiber of slag draining and separating machine separator well；It is good Slurry removes tiny sand through too low dense scummer by forming long, medium and short fibre stuff, long stuff after the classification of classifying screen twice After gravel, slurry is further screened by fine screen, after then polydisc thickener is concentrated into 10% mass concentration, into heat partition system System controls 100-105 DEG C of temperature, disk mill gap 0.15mm, disperses sicker, and being beaten finally by mill and forming beating degree is 40 ± 2 ° of SR, the slurry that concentration is 4% are spare；Middle fibre stuff passes through low dense scummer, polydisc thickener, heat partition system, mill After mashing, it is spare to form the slurry that beating degree is 40 ± 2 ° of SR, concentration is 4%；Short stock is through too low dense scummer and polydisc It is spare that the slurry that concentration is 4% is formed after thickener；
Deinking Pulp production line pulping process parameter under tectorial paper in the slurrying workshop section of paper are as follows: paper Deinking Pulp production line under tectorial paper The slurry come first passes through scalping screening slurry, and tail slurry sends ONP rotary drum pulping machine back to, and good slurry enters flotation cell, by the oil in newspaper Black flotation discharge system further screens slurry by fine screen, with laggard after then removing tiny gravel by low dense scummer Enter polydisc thickener, after being concentrated into 10% mass concentration, into heat partition system, controls 105-110 DEG C of temperature, disk mill gap 0.13mm disperses sicker, and it is spare to be finally sent into slurry tower；
OCC production line pulping process parameter under tectorial paper in the slurrying workshop section of paper are as follows: the slurry that paper OCC production line comes under tectorial paper Material, first passes through scalping screening slurry, and tail slurry sends OCC rotary drum pulping machine, 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 The identical treatment process of long and short fibre stuff in slurrying workshop section, obtains spare slurry；
The papermaking workshop section of paper and lower paper on tectorial paper includes the following steps: made of paper under paper slip house and tectorial paper on tectorial paper The slurry that slurry workshop is come passes through respective approach system respectively, i.e., after fan pump, pressurized screen, being respectively formed concentration is 0.4%- 0.8% slurry is sprayed by head box surf the Internet respectively, and approach system is separately added into chemicals: being added in slurry and is formed sediment before fan pump Aluminum sulfate and ASA sizing agent are added after fan pump, is separately added into dry powder retention agent before pressurized screen, is separately added into after pressurized screen for powder Filter aid, respectively by being dehydrated by dewatering elements to 10-14% mass dryness fraction, press section is by suction baby press after wet end composite molding + 2 road press with large-roll-diameter composition, out splenium mass dryness fraction be 46%, by front baking, table glue, after baking, press polish, batch, most afterwards through rewinding machine Rewinding at different size paper roll, into storehouse.
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 under tectorial paper The deinking chemicals being added in Deinking Pulp production line in pulping workshop section include: 0.7kg/ tons of waste paper of deinking agent, hydrogen peroxide 23kg/ Ton waste paper, 18kg/ tons of waste paper of sodium hydroxide, 8kg/ tons of waste paper of sodium metasilicate.
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 And the chemicals that approach system is added in Xia Zhi papermaking workshop section is respectively as follows: the chemicals that paper approach system is added on tectorial paper: slurry Interior starch 2kg/ tons of paper, 8kg/ tons of paper of aluminum sulfate, 1.5-2.5kg/ tons of paper of ASA sizing agent, 0.2kg/ tons of paper of dry powder retention agent help 0.4kg/ tons of paper of filtering agent；The chemicals that paper approach system is added under tectorial paper: 2kg/ tons of paper of starch in starching, 12kg/ tons of aluminum sulfate Paper, 1-2.5kg/ tons of paper of ASA sizing agent, 0.25kg/ tons of paper of dry powder retention agent, 0.5kg/ tons of paper of filter aid.
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 Wet end uses the three-layer network at face, core, bottom, and surface layer is middle fine slurry vermicelli, and core, bottom are long and short fiber 5:6 mixing slurry in mass ratio Material.
5. the production technology of paper and lower paper on a kind of tectorial paper according to claim 1, it is characterised in that: paper under tectorial paper Wet end using face, lining, core, bottom four-layer network, surface layer be Deinking Pulp vermicelli, lining, core, bottom for OCC long and short fiber in mass ratio 6:4 mixed slurry.
6. 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 Table glue surface layer starch concentration be 3-5%, bottom concentration be 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.
7. 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 In the chemicals that approach system is added, ASA sizing agent is 2kg/ tons of paper, and the table glue surface layer starch concentration of paper is 4% on tectorial paper, Bottom concentration is 2%, and hot water permeates 1200-1500s；In the chemicals that paper approach system is added under tectorial paper, ASA sizing agent is 2kg/ tons of paper, the table glue surface layer starch concentration of paper is 5% on tectorial paper, and bottom concentration is 3%, and hot water permeates 1500-1800s.
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