CN107237214A - A kind of production method of sheet lining - Google Patents

A kind of production method of sheet lining Download PDF

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Publication number
CN107237214A
CN107237214A CN201710439887.8A CN201710439887A CN107237214A CN 107237214 A CN107237214 A CN 107237214A CN 201710439887 A CN201710439887 A CN 201710439887A CN 107237214 A CN107237214 A CN 107237214A
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CN
China
Prior art keywords
occ
paper
slurries
sheet lining
surface layer
Prior art date
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Pending
Application number
CN201710439887.8A
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Chinese (zh)
Inventor
孙浩
章爱其
吕晓峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd
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ZHEJIANG JINGXING PAPER JOINT STOCK CO Ltd
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Filing date
Publication date
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Priority to CN201710439887.8A priority Critical patent/CN107237214A/en
Publication of CN107237214A publication Critical patent/CN107237214A/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H15/10—Composite fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/17—Ketenes, e.g. ketene dimers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/56—Polyamines; Polyimines; Polyester-imides
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

Abstract

The invention belongs to paper-making technology field, it is related to a kind of production method of sheet lining, in order to which the production still part for solving sheet lining is starched using log, production cost is higher, and to the negative effect of environment it is larger the problem of, the invention provides providing a kind of production method of sheet lining, including surface layer, the forming step and surface layer of sandwich layer and bottom intermediate pulp, sandwich layer and bottom intermediate pulp are combined into paper step, and above-mentioned technical problem can be effectively solved using above technical scheme.

Description

A kind of production method of sheet lining
Technical field
The invention belongs to paper-making technology field, it is related to a kind of production method of sheet lining.
Background technology
Recently as the lasting fast development of Express Logistics industry, packaging industry demand is caused to rise, sheet lining is many The important composition key element of many paper made package boxes, clad plate.Surface layer, which is used, in the production of current domestic middle-and-high-ranking facial tissue does not float log Slurry, core, bottom are not carried out full waste paper and produce middle-and-high-ranking sheet lining, in addition in existing production process with domestic or imported waste paper Steam consumption it is big, cost is high.
The content of the invention
The technical problems to be solved by the invention be sheet lining production still part starched using log, production cost compared with Height, and to the negative effect of environment it is larger the problem of, and provide a kind of production method of sheet lining for the problem.
The production method of sheet lining of the present invention includes surface layer, the forming step of sandwich layer and bottom intermediate pulp and face Layer, sandwich layer and bottom intermediate pulp are combined into paper step；
The forming step of the surface layer, sandwich layer and bottom intermediate pulp includes：
A, to AOCC slurries add the first additive formation surface layer intermediate pulp；
B, fiber classification formation OCC long stuffs and OCC short stocks are carried out to OCC slurries；
C, to OCC long stuffs Second addition is added to form sandwich layer intermediate pulp, to OCC short stocks and copying back slurry The 3rd additive formation bottom intermediate pulp is added, the OCC short stocks and the mixed proportion for copying back slurry are 2-3:1；
First additive includes polyvinylamine 10-11kg/T, dodecyl ketene dimer 5-8kg/T, aluminum sulfate 10- 14kg/T, polyacrylamide 24-32kg/T, retention agent 0.4-0.6kg/T, bentonite 0.7-1.4kg/T；
The Second addition include polyvinylamine 10-11kg/T, aluminum sulfate 10-14kg/T, polyacrylamide 24-32kg/T, Retention agent 0.2-0.3kg/T, bentonite 0.7-1.4kg/T；
3rd additive includes polyvinylamine 10-11kg/T, dodecyl ketene dimer 5-8kg/T, aluminum sulfate 10- 14kg/T, polyacrylamide 24-32kg/T, retention agent 0.2-0.3kg/T, bentonite 0.7-1.4kg/T；The retention agent is poly- Acrylamide.
The AOCC slurries are the U.S. useless slurry of import, and OCC slurries include the U.S. useless slurry of 18%-22% imports, 33%-37% imports Japan Useless slurry and 43%-47% China OCC useless slurries, the fiber basis weight of the surface layer, sandwich layer and bottom is respectively 20-25g/m2、40-65g/ m2And 60-120g/m2。
Replaced that the reduction of intensity will necessarily be caused with waste paper pulp, but in fact, by implementing above-mentioned technical side of the invention Case, can at least be such that the burst index, ring crush index and folding strength of resulting sheet lining corresponds to respectively and reach 3.96Kpa.m2/ G, 9.82N.m/g and 43 times.
In addition, after adopting the above technical scheme, a unexpected technique effect is also obtained, i.e., in sheet lining production During, using the synergy of polyacrylamide and polyvinylamine, play a part of drainage and retention, increase into press section The mass dryness fraction of paper web, steam usage amount is less than 1.45Kg/T paper, and the steam at least reducing 30% is used, and has saved mass energy.
As a preferred embodiment, the quantification of 120-200g/m of the sheet lining2。
As a preferred embodiment, the OCC slurries include the U.S. useless slurry of 20% import, the Japanese useless slurry of 35% import and 45% China OCC Useless slurry.
Brief description of the drawings
Fig. 1 is the flow chart of sheet lining production method described in embodiment part.
Embodiment
Present embodiment is the supplementary notes to the content of the invention.
The production method of sheet lining of the present invention includes surface layer, the forming step of sandwich layer and bottom intermediate pulp and face Layer, sandwich layer and bottom intermediate pulp are combined into paper step；
Wherein surface layer is made by AOCC slurries, and OCC long fibres secondary stock and chopped fiber secondary stock are by fiber classification Reason, is respectively used to sandwich layer and bottom.
The paper step that is combined into of the surface layer, sandwich layer and bottom intermediate pulp is included AOCC slurries, OCC long fibre waste paper Slurry and chopped fiber secondary stock are sequentially entering forming part, press section, drying section, and are batched through press polish and ultimately form sheet lining.
The forming step of the surface layer intermediate pulp includes adding to AOCC slurries starches in the middle of the first additive formation surface layer The step of material, before the step of carrying out adding the first additive formation surface layer intermediate pulp to AOCC slurries, art technology Personnel need to obtain AOCC slurries, and the AOCC slurries can be obtained by the various modes of paper technology, for example first by AOCC successively Size degradation, desanding, fine screen, concentration are carried out, heat partition and mill are then carried out again, each step accordingly plays respective effect, ability Field technique personnel to step increase, reduce or sequentially change the technique effect that can be generated there is certain expection, therefore Those skilled in the art can will arbitrarily generate the flow increase of AOCC slurries, reduce step or by having in the flow The order for closing step is adjusted, and these measures would not influence the generation of AOCC slurries.
Equally, the forming step of sandwich layer and the bottom intermediate pulp includes adding to OCC long stuffs addition second The step of agent is to form sandwich layer intermediate pulp and to OCC short stocks and copy back slurry addition the 3rd additive formation bottom in Between slurry the step of, carry out to OCC long stuffs add Second addition to form sandwich layer intermediate pulp the step of and To OCC short stocks and copy back slurry addition the 3rd additive formation bottom intermediate pulp the step of before, people in the art Member need to obtain OCC long stuffs and OCC short stocks, and the OCC length/short stock can pass through each of paper technology Kind of mode is obtained, for example, OCC length/chopped fiber is first carried out into size degradation, desanding, fine screen, concentration successively, then carry out again heat partition and Mill, each step accordingly plays respective effect, and those skilled in the art are to step increase, reduction or order change institute energy The technique effect of generation has certain expection, therefore those skilled in the art arbitrarily can will generate OCC length/short fibered pulp The flow of material increases, reduces step or adjust the order of the relevant step in the flow, and these measures would not Influence the generation of OCC length/short stock.
OCC length/the chopped fiber can be previously generated in raw material part, can also be in OCC length/short stock generation Process pass through to OCC fibers carry out fiber classification, the b step introduced for example with Summary, art technology Personnel can insert b step during specific implementation manufacture OCC length/short stock at the time of preferable fiber classification, After b step is handled, technical staff can just prepare OCC length/short stock by raw material of OCC fibers, so as to reduce pair The fastidious degree of raw material.
The following is the present invention through frequently with a kind of sheet lining production method, see Fig. 1, this method comprises the following steps：
1st, first prepare OCC and AOCC dispensings respectively, for OCC dispensings, OCC dispensings need to be subjected to size degradation, desanding, fibre successively Dimension classification；
2nd, after fiber classification, OCC fibers are divided into OCC long fibres and OCC chopped fibers, for OCC long fibres, need by OCC long fibres carry out desanding, fine screen, concentration, heat partition and mill to obtain OCC long stuffs successively；
3rd, for OCC chopped fibers, OCC chopped fibers need to be carried out to desanding, concentration and mill successively to obtain OCC short fibered pulps Material；
4th, the first additive and Second addition are added to OCC long fibres and OCC chopped fibers respectively, is formed in the middle of sandwich layer and starched respectively Material and bottom intermediate pulp；
5th, for AOCC dispensings, AOCC dispensings need to be subjected to size degradation, desanding, fine screen, concentration, heat partition and mill successively To obtain AOCC slurries；
6th, the 3rd additive is added to AOCC slurries, forms surface layer intermediate pulp；
7th, surface layer intermediate pulp, sandwich layer intermediate pulp and the bottom intermediate pulp obtained the 4th, 6 steps respectively through forming part into Type, squeezing, drying, press polish and batch and final into paper.
For the technical staff in pulping and paper-making field, repulping of waste paper, slagging-off, fiber classification, heat treatment are all relatively to hold Step is easily realized, the drying strengthening agent is polyacrylamide；The reinforcing agent is polyethylene ammonium；The sizing agent is dodecyl alkene Ketone dimer, solid polypropylene acid amides or Suo Lisi that the retention agent provides for Jiaxing sky above Hubei and Hunan Chemical trade Co., Ltd（On Sea）The liquid polyacrylamides that Chemical Co., Ltd. provides.
Embodiment 1
With reference to it is of the present invention through frequently with the production method of sheet lining a kind of sheet lining is produced, specially：
1）The proportions surface layer of table 1, sandwich layer and base pastes are pressed respectively.
2）Through respective head box, dehydration forms l Water Paper page to three layers of slurry on shaping wet end respectively, then multiple on spacer screen Close, aspirated through high vacuum, 22% or so mass dryness fraction base board is made, is sent to press section and is squeezed；
3）Previous step base board carries out mechanical dehydration by one of plain press and two road shoe press, and mass dryness fraction reaches more than 45% After go drying section to dry；Wherein squeezing line pressure is：One pressure 160KN/M, two pressure 940KN/M；
3）Paper web forms parent roll after calender in coil paper portion again, then turns into the production of specification needed for client through rewind slitting again Product.
The additive component of table 1 first, second, third and three layers of slurry proportion
Surface layer Sandwich layer Bottom
Grammes per square metre（g/m2） 20 45 55
Drying strengthening agent（Kg/T paper） 29 29 29
Reinforcing agent（Kg/T paper） 10.3 10.3 10.3
Retention agent（Kg/T paper） 0.4 0.25 0.25
Aluminum sulfate（Kg/T paper） 12 12 12
Sizing agent（Kg/T paper） 7.5 7.5
Bentonite（Kg/T paper） 1.2 1.2 1.2
Embodiment 2
With reference to it is of the present invention through frequently with the production method of sheet lining a kind of sheet lining is produced, specially：
1）The proportions surface layer of table 2, sandwich layer and base pastes are pressed respectively.
2）Through respective head box, dehydration forms l Water Paper page to three layers of slurry on shaping wet end respectively, then folded online multiple three Close, aspirated through high vacuum, 22% or so mass dryness fraction base board is made, is sent to press section and is squeezed；
3）Previous step base board carries out mechanical dehydration by one of plain press and two road shoe press, and mass dryness fraction reaches more than 45% After go drying section to dry；Wherein squeezing line pressure is：One pressure 180KN/M, two pressure 1000KN/M；
4）Paper web forms parent roll after calender in coil paper portion again, then turns into the production of specification needed for client through rewind slitting again Product.
The additive component of table 2 first, second, third and three layers of slurry proportion
Surface layer Sandwich layer Bottom
Grammes per square metre（g/m2） 21 54 65
Drying strengthening agent（Kg/T paper） 27 27 27
Reinforcing agent（Kg/T paper） 10.2 10.2 10.2
Retention agent（Kg/T paper） 0.5 0.25 0.25
Aluminum sulfate（Kg/T paper） 12 12 12
Sizing agent（Kg/T paper） 7 7
Bentonite（Kg/T paper） 1.05 1.05 1.05
Embodiment 3
With reference to it is of the present invention through frequently with the production method of sheet lining a kind of sheet lining is produced, specially：
1）The proportions surface layer of table 3, sandwich layer and base pastes are pressed respectively.
2）Through respective head box, dehydration forms l Water Paper page to three layers of slurry on shaping wet end respectively, then multiple on spacer screen Close, aspirated through high vacuum, 22% or so mass dryness fraction base board is made, is sent to press section and is squeezed；
3）Previous step base board carries out mechanical dehydration by one of plain press and two road shoe press, and mass dryness fraction reaches more than 45% After go drying section to dry；Wherein squeezing line pressure is：One pressure 170KN/M, two pressure 960KN/M；
3）Paper web forms parent roll after calender in coil paper portion again, then turns into the production of specification needed for client through rewind slitting again Product.
The additive component of table 3 first, second, third and three layers of slurry proportion
Surface layer Sandwich layer Bottom
Grammes per square metre（g/m2） 21 64 85
Drying strengthening agent（Kg/T paper） 26 26 26
Reinforcing agent（Kg/T paper） 10.6 10.6 10.6
Retention agent（Kg/T paper） 0.45 0.25 0.25
Aluminum sulfate（Kg/T paper） 12 12 12
Sizing agent（Kg/T paper） 6.4 6.4
Bentonite（Kg/T paper） 0.95 0.95 0.95
Embodiment 4
With reference to it is of the present invention through frequently with the production method of sheet lining a kind of sheet lining is produced, specially：
1）The proportions surface layer of table 4, sandwich layer and base pastes are pressed respectively.
2）Through respective head box, dehydration forms l Water Paper page to three layers of slurry on shaping wet end respectively, then folded online multiple three Close, aspirated through high vacuum, 22% or so mass dryness fraction base board is made, is sent to press section and is squeezed；
3）Previous step base board carries out mechanical dehydration by one of plain press and two road shoe press, and mass dryness fraction reaches more than 45% After go drying section to dry；Wherein squeezing line pressure is：One pressure 180KN/M, two pressure 1000KN/M；
4）Paper web forms parent roll after calender in coil paper portion again, then turns into the production of specification needed for client through rewind slitting again Product.
The additive component of table 4 first, second, third and three layers of slurry proportion
Surface layer Sandwich layer Bottom
Grammes per square metre（g/m2） 23 70 107
Drying strengthening agent（Kg/T paper） 22 22 22
Reinforcing agent（Kg/T paper） 10.2 10.2 10.2
Retention agent（Kg/T paper） 0.5 0.25 0.25
Aluminum sulfate（Kg/T paper） 12 12 12
Sizing agent（Kg/T paper） 5.5 5.5
Bentonite（Kg/T paper） 0.75 0.75 0.75
Embodiment 5
With reference to it is of the present invention through frequently with the production method of sheet lining a kind of sheet lining is produced, specially：
1）Surface layer uses sulfate method pulp, and sandwich layer uses OCC long fibre, and bottom uses OCC chopped fiber, and grammes per square metre is pressed respectively Shown in table 5.
2）Through respective head box, dehydration forms l Water Paper page to three layers of slurry on shaping wet end respectively, then folded online multiple three Close, aspirated through high vacuum, 22% or so mass dryness fraction base board is made, is sent to press section and is squeezed；
3）Previous step base board carries out mechanical dehydration by one of plain press and two road shoe press, and mass dryness fraction reaches more than 45% After go drying section to dry；Wherein squeezing line pressure is：One pressure 180KN/M, two pressure 1000KN/M；
4）Paper web forms parent roll after calender in coil paper portion again, then turns into the production of specification needed for client through rewind slitting again Product.
The additive component of table 5 first, second, third and three layers of slurry proportion
Surface layer Sandwich layer Bottom
Grammes per square metre（g/m2） 23 70 107
Drying strengthening agent（Kg/T paper） 22 22 22
Reinforcing agent（Kg/T paper） 0 0 0
Retention agent（Kg/T paper） 0.5 0.25 0.25
Aluminum sulfate（Kg/T paper） 12 12 12
Sizing agent（Kg/T paper） 5.5 5.5
Bentonite（Kg/T paper） 0.75 0.75 0.75
The sheet lining produced by above-described embodiment 1-5, its major product performance indications refer to U grades of sheet lining certified products requirements It is denoted as to such as table 6：
The U grades of sheet lining certified products requirements of the country of table 7
Comparison sheet 6 and table 7 understand that the sheet lining performance indications that the present invention is produced have reached national U grades of sheet lining certified products It is required that, wherein burst index, ring crush index and folding strength are all higher than corresponding requirement.
And embodiment 1-5 steam consumptions are respectively 0.989kg/T paper, 0.993 kg/T paper, 1.01kg/T paper, 1.04kg/T Paper, 1.41 kg/T paper, even if still higher using the consumption of wood pulp its steam, and first four all produce far below enterprise practical It is required that 1.45kg/T paper requirement, reached preferable requirement.
Embodiment 1-5 more effectively illustrates the reliability and exploitativeness of the present invention.The sheet lining that the present invention is produced is not The requirement of national U grades of sheet lining certified products can be only reached, phase is all higher than also in terms of burst index, ring crush index and folding strength The requirement answered, the consumption of steam is also below plant produced requirement.100% secondary stock recovery slurry is more importantly realized to copy Make, so not only production cost is low, be additionally beneficial to environmental protection.

Claims (3)

1. a kind of production method of sheet lining, including surface layer, the forming step and surface layer of sandwich layer and bottom intermediate pulp, sandwich layer and Bottom intermediate pulp is combined into paper step；
The forming step of the surface layer, sandwich layer and bottom intermediate pulp includes：
A, to AOCC slurries add the first additive formation surface layer intermediate pulp；
B, fiber classification formation OCC long stuffs and OCC short stocks are carried out to OCC slurries；
C, to OCC long stuffs Second addition is added to form sandwich layer intermediate pulp, to OCC short stocks and copying back slurry The 3rd additive formation bottom intermediate pulp is added, the OCC short stocks and the mixed proportion for copying back slurry are 2-3:1；
First additive includes polyvinylamine 10-11kg/T, dodecyl ketene dimer 5-8kg/T, aluminum sulfate 10- 14kg/T, polyacrylamide 24-32kg/T, retention agent 0.4-0.6kg/T, bentonite 0.7-1.4kg/T；
The Second addition include polyvinylamine 10-11kg/T, aluminum sulfate 10-14kg/T, polyacrylamide 24-32kg/T, Retention agent 0.2-0.3kg/T, bentonite 0.7-1.4kg/T；
3rd additive includes polyvinylamine 10-11kg/T, dodecyl ketene dimer 5-8kg/T, aluminum sulfate 10- 14kg/T, polyacrylamide 24-32kg/T, retention agent 0.2-0.3kg/T, bentonite 0.7-1.4kg/T；
The AOCC slurries are the U.S. useless slurry of import, and OCC slurries include the U.S. useless slurry of 18%-20% imports, the Japanese useless slurry of 33%-37% imports And 43%-47% China OCC useless slurries, the fiber basis weight of the surface layer, sandwich layer and bottom is respectively 20-25g/m2、40-65g/m2And 60-120g/m2；The retention agent is polyacrylamide.
2. a kind of production method of sheet lining according to claim 1, it is characterised in that the sheet lining it is quantification of 120-200g/m2。
3. the production method of a kind of sheet lining according to claim 1, it is characterised in that the OCC slurries enter including 20% The U.S. useless slurry of mouth, the Japanese useless slurry of 35% import and 45% China's OCC useless slurries.
CN201710439887.8A 2017-06-12 2017-06-12 A kind of production method of sheet lining Pending CN107237214A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108035199A (en) * 2017-12-11 2018-05-15 福建省联盛纸业有限责任公司 A kind of craft paper and preparation method thereof
CN108978327A (en) * 2018-08-01 2018-12-11 联盛纸业（龙海）有限公司 A kind of production method of wood chip defibrator process slurry substitution OCC slurry production corrugated paper
CN112281546A (en) * 2020-10-20 2021-01-29 新晃县自强纸业有限责任公司 Production method of liner paper
CN112442913A (en) * 2020-10-21 2021-03-05 东莞建晖纸业有限公司 Process for making paper substituted fiber ebony slag pulp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108035199A (en) * 2017-12-11 2018-05-15 福建省联盛纸业有限责任公司 A kind of craft paper and preparation method thereof
CN108978327A (en) * 2018-08-01 2018-12-11 联盛纸业（龙海）有限公司 A kind of production method of wood chip defibrator process slurry substitution OCC slurry production corrugated paper
CN112281546A (en) * 2020-10-20 2021-01-29 新晃县自强纸业有限责任公司 Production method of liner paper
CN112442913A (en) * 2020-10-21 2021-03-05 东莞建晖纸业有限公司 Process for making paper substituted fiber ebony slag pulp

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Application publication date: 20171010