CN103290729A - Production method of environment-friendly type electrostatic copy paper - Google Patents
Production method of environment-friendly type electrostatic copy paper Download PDFInfo
- Publication number
- CN103290729A CN103290729A CN2013101935399A CN201310193539A CN103290729A CN 103290729 A CN103290729 A CN 103290729A CN 2013101935399 A CN2013101935399 A CN 2013101935399A CN 201310193539 A CN201310193539 A CN 201310193539A CN 103290729 A CN103290729 A CN 103290729A
- Authority
- CN
- China
- Prior art keywords
- oven dry
- dry stock
- paper
- production method
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Paper (AREA)
Abstract
The invention provides a production method of electrostatic copy paper. The production method of the electrostatic copy paper comprises the following steps of: taking high-quality and clean waste newspapers as main raw materials, carrying out processes of sorting the waste papers, disintegrating, deinking, beating, bleaching, proportioning and papermaking; finally, rewinding and packaging to acquire high-grade electrostatic copy paper, and preparing a sizing agent by taking corn raw starch, a surface sizing agent and a brightening agent as raw materials to carry out surface sizing. According to the production method of electrostatic copy paper, the high-quality waste newspapers are taken as the raw materials, so that the large quantities of wood is saved, the production cost is reduced, the refuse reclamation is realized and the resource-saving type and environment-friendly type industry goals of the papermaking industry are achieved. The brightening agent is added into the sizing agent, so that the whiteness of the product paper is greatly improved, the defect of poor whiteness of the waste paper pulp is overcome and the national standard and the needs of the users are satisfied.
Description
Technical field
The invention belongs to pulp technology for making paper, be specifically related to a kind of production method of electro-photographic paper.
Background technology
China is a papermaking big country, and 2011 and continuous 2 annual productions in 2012 surpass hundred million tons, is the whole world first.Only wood pulp consumption every year is with regard to more than 2,000 ten thousand tons, and electro-photographic paper is the paper kind that requires technical indicator very high in these paper products.Traditional production technique all is to adopt single high-quality wood pulp or multiple high-quality wood pulp to mix to produce, and this will consume a large amount of timber resources, and deforestation is serious, for the country of the such timber resources scarcity of China, is unfavorable for very much improvement of the ecological environment.
The method that present reclaimed waste paper is produced high-grade electro-photographic paper is ripe not enough, produce in the pulping process, waste paper fibre is repeatedly sheared, electro-photographic paper pulling force and the folding strength produced are relatively poor, ash content and dirt content are higher, are difficult to meet national standard or user's very special quality requirement.And if will be that raw material is produced satisfactory high-grade electro-photographic paper with the old and useless newspaper, pulp brightness be one of them problem that is difficult to overcome always, and therefore the electro-photographic paper of producing with old and useless newspaper fully can not reach country or user's standard always.
Summary of the invention
The invention provides a kind of production method of environment protecting high-grade electro-photographic paper, this method is not used timber to make raw material and is produced electro-photographic paper, but employing high-quality old and useless newspaper is produced electro-photographic paper, has solved existing production method cost height, consume a large amount of timber resources, deforestation is serious, the problem of destruction ecological environment.
The production method of electro-photographic paper of the present invention mainly may further comprise the steps:
(1) waste paper letter sorting: brown paper, corrugated paper, the packing material of sneaking into are picked, manually pick up choosing and obtain the high-quality old and useless newspaper;
(2) size degradation: will send into the rotary drum pulper through conveying equipment through picking up the high-quality old and useless newspaper of choosing, and add hot water and alkali simultaneously and carry out size degradation, and obtain containing the slurry of a certain amount of printing ink and viscose glue thing;
(3) deinking: at deinking tank printing ink and viscose glue thing in step (2) the gained slurry are carried out flotation, the employing mass ratio is that the enzymatic deinking agent E1688 of oven dry stock 0.1-0.4% carries out deinking;
(4) making beating: adopt beater to pull an oar in the mode of slight rubbing, add hydrogen peroxide and enzymatic deinking agent in the beater import;
(5) bleaching: carry out the FAS bleaching in the tower dense the floating of height, enter pulp storage tank behind the pulp washing through bleaching; The process conditions of bleaching are: bleaching temperature 80-85 ℃, and FAS consumption 0.3-0.6%, FAS:NaOH=1-2:1, E1688:0.05-0.1% oven dry stock (mass ratio, the oven dry stock of 100%E1688), pH value≤9, time 60-90min;
(6) join slurry: use wet strength agent when joining slurry, concentration is 12-18%, and use amount is the 25-35kg/t oven dry stock, joins slurry by following proportioning, obtains the finished product slurry:
Cationic starch: 1.0-2.5% oven dry stock (mass percent concentration);
Alkyl ketene dimer (AKD): 1.0-2.5% oven dry stock (mass percent concentration);
Fineness 〉=1500 purposes are ground CaCO
3: 〉=20% oven dry stock (mass percent concentration);
Polyacrylamide (PAM): 250-350ppm/t oven dry stock (mass percent concentration);
(7) copy paper: process conditions are: finished product slurry beating degree reaches 30-35 ° of SR;
Online concentration: the 0.4-0.5%(mass concentration), online pH value 7.0-9.0;
(8), top sizing:
1. raw material: corn ative starch, Cypres, brightening agent;
2. configuration proportion: corn ative starch 75-125kg/t oven dry stock;
Cypres 2-6kg/t oven dry stock;
Brightening agent 2-6kg/t oven dry stock;
3. concentration: the 8.0-12%(mass percent concentration);
(9) rewinding, cut choosing/packing.
Step of the present invention (2) hot water is temperature 50-60 ℃, and alkali is NaOH, and consumption is the 0.3-0.5% of high-quality old and useless newspaper dry weight.
By the moistening size degradation of high temperature, the effect of alkali lye in addition can be accelerated the repulping of waste paper process, and is beneficial to the further deinking of secondary stock.
Step of the present invention (4) making beating is based on desanding and remove fiber impurity, takes the mode of slight rubbing, reduces the shearing to fiber, thereby ensures into pulling force and the folding strength of paper.
The consumption of step of the present invention (4) hydrogen peroxide is 1.0-1.5% oven dry stock (mass ratio, 100% hydrogen peroxide is to oven dry stock), and enzymatic deinking agent consumption is 0.1-0.4% oven dry stock (mass ratio, the oven dry stock of 100%E1688).
Step (5) adopts the FAS bleaching, some coloured fibres is had good decolorization, integrating step (4), H
2O
2-FAS(is oxidation---reduction) and than being easier to improve the deinking pulp brightness.
Use wet strength agent when step (6) is joined slurry, can effectively improve the intensity of paper pulp.
Adopt cationic starch when step (6) is joined slurry, mass percent concentration is the 1.0-2.5% oven dry stock, can increase strength of paper, improves retention and increases Pulp Drainage Properties.
Adopting mass percent concentration when step (6) is joined slurry is the AKD of 1.0-2.5% oven dry stock, can increase the water repelling property of paper, improves the paper sizing degree, produces the paper that obtains and has both met the national standard index request, can reduce cost again.
Step (6) is joined slurry and is adopted fineness 〉=1500 purposes to grind CaCO
3, mass percent concentration is 〉=20% oven dry stock, can reduce a ton paper production cost, improves paper smoothness and sophistication.
Step (6) is joined when slurry and is adopted polyacrylamide (PAM), and mass percent concentration is the 250-350ppm/t oven dry stock, can improve the retention of filler in the paper pulp, sizing material, satisfies GB and customer requirements, simultaneously reduce cost.
Evidence adds a certain amount of brightening agent during step (8) preparation sizing agent, can significantly improve the whiteness of pulp from decoloured waste paper.Because adopting old and useless newspaper is raw materials for production, the whiteness of pulp from decoloured waste paper is the problem that is difficult to overcome always, therefore produces the paper that obtains and can not meet the requirements always.The present invention makes brightening agent recycle to produce in the high-grade electro-photographic paper at old and useless newspaper and has played unexpected effect by the ratio of sizing agent in the ratio of brightening agent and the paper pulp in the control sizing agent.
The quality index of the electro-photographic paper of Sheng Chaning is as stated above:
Quantitatively: 70-80g/m
2
Moisture content: 4.8-5.5%;
Thickness: 0.09-0.10mm;
The thickness banner is poor :≤5.0%;
The surface absorbs weight :≤30g/m
2
Whiteness: 80-100%;
Opacity: 85-90;
Pulling force (resonance method): laterally 〉=12N
Vertically 〉=25N
Smoothness: positive and negative all 〉=18S
Dirt count: 0.2-0.5mm
2:≤80(/m
2),
0.5-1.5mm
2:≤5(/m
2),
＞1.5mm
2: do not have.
Above index meets national standard and market user's very special quality requirement fully.
The invention has the beneficial effects as follows that the present invention utilizes the high-quality old and useless newspaper as raw material, produce high-grade electro-photographic paper, mixing the production electro-photographic paper with existing single wood pulp or multiple wood pulp compares, a large amount of timber have been saved, reduced production cost, realize refuse reclamation, realized the industry target of paper industry " resource-conserving " and " environmentally friendly ".
Pulping process of the present invention has reduced the shearing to fiber based on desanding and the removal of impurity, thereby has ensured pulling force and the folding strength that becomes paper, and the high-grade electro-photographic paper of Sheng Chaning meets national standard and the specific demand of satisfying the market user fully simultaneously.
Sizing agent of the present invention has added brightening agent, makes product paper significantly improve whiteness, has overcome the bad shortcoming of secondary stock whiteness, has satisfied GB and user's demand.
The environmental benefit of this patent of invention, economic benefit and social benefit be highly significant all, is fit to very much the national conditions that China lacks timber resources.
Description of drawings
Fig. 1: the flow sheet of production method of the present invention.
The specific embodiment
Embodiment 1:
(1) waste paper letter sorting: brown paper, corrugated paper, the packing material of sneaking into are picked, manually pick up choosing and obtain the high-quality old and useless newspaper;
(2) size degradation: will be through picking up the high-quality old and useless newspaper of choosing, send into the rotary drum pulper through conveying equipment, add 50 ℃ of hot water and 0.3%NaOH(mass ratio simultaneously, 100%NaOH is to air-dry waste paper) carry out size degradation, obtain containing the slurry of a certain amount of printing ink and viscose glue thing;
(3) deinking: at deinking tank printing ink and viscose glue thing in step (2) the gained slurry are carried out flotation, the employing mass ratio is that the enzymatic deinking agent E1688 of oven dry stock 0.1% carries out deinking;
(4) making beating: adopt beater to pull an oar in the mode of slight rubbing, add hydrogen peroxide and enzymatic deinking agent in the beater import; Making beating is based on desanding and remove fiber impurity, takes the mode of slight rubbing, reduces the shearing to fiber, thereby ensures into pulling force and the folding strength of paper; The consumption of hydrogen peroxide is 1.0% oven dry stock (mass ratio, 100% hydrogen peroxide is to oven dry stock), and enzymatic deinking agent consumption is 0.1% oven dry stock (mass ratio, the oven dry stock of 100%E1688);
(5) bleaching: carry out the FAS bleaching in the tower dense the floating of height, enter pulp storage tank behind the pulp washing through bleaching; The process conditions of bleaching are: 80 ℃ of bleaching temperatures, FAS consumption 0.3%, FAS:NaOH=1:1, E1688:0.05% oven dry stock (mass ratio, the oven dry stock of 100%E1688), pH value≤9, time 90min;
(6) join slurry: use wet strength agent when joining slurry, concentration is 12%, and use amount is the 35kg/t oven dry stock, joins slurry by following proportioning, obtains the finished product slurry:
Cationic starch: 1.0% oven dry stock (mass percent concentration);
Alkyl ketene dimer (AKD): 1.0% oven dry stock (mass percent concentration);
Fineness 〉=1500 purposes are ground CaCO
3: 〉=20% oven dry stock (mass percent concentration);
Polyacrylamide (PAM): 250ppm/t oven dry stock (mass percent concentration);
(7) copy paper: process conditions are: finished product slurry beating degree reaches 30 ° of SR;
Online concentration: the 0.4%(mass concentration), online pH value 7.0;
(8), top sizing:
1. raw material: corn ative starch, Cypres, brightening agent;
2. configuration proportion: corn ative starch 75kg/t oven dry stock;
Cypres 6kg/t oven dry stock;
Brightening agent 6kg/t oven dry stock;
3. concentration: the 8.0%(mass percent concentration);
(9) rewinding, cut choosing/packing.
High-grade electro-photographic paper by above-mentioned process production:
Quantitatively: 70g/m
2
Moisture content: the 4.0%(mass content);
Thickness: 0.09mm;
The thickness banner is poor :≤5.0%;
The surface absorbs weight: 30g/m
2
Whiteness: 85%;
Opacity:＞90%;
Pulling force: horizontal 12N
Vertical 25N
Smoothness: the equal 20S of positive and negative
Lateral extensometer shrinkage: 2.0%
Dirt count: 0.2-0.5mm
2: 70(/m
2)
0.5-1.5mm
2: 4(/m
2)
＞1.50mm
2: 0
Embodiment 2:
(1) waste paper letter sorting: brown paper, corrugated paper, the packing material of sneaking into are picked, manually pick up choosing and obtain the high-quality old and useless newspaper;
(2) size degradation: will be through picking up the high-quality old and useless newspaper of choosing, send into the rotary drum pulper through conveying equipment, add 60 ℃ of hot water and 0.5%NaOH(mass ratio simultaneously, 100%NaOH is to air-dry waste paper) carry out size degradation, obtain containing the slurry of a certain amount of printing ink and viscose glue thing;
(3) deinking: at deinking tank printing ink and viscose glue thing in step (2) the gained slurry are carried out flotation, the employing mass ratio is that the enzymatic deinking agent E1688 of oven dry stock 0.4% carries out deinking;
(4) making beating: adopt beater to pull an oar in the mode of slight rubbing, add hydrogen peroxide and enzymatic deinking agent in the beater import; Making beating is based on desanding and remove fiber impurity, takes the mode of slight rubbing, reduces the shearing to fiber, thereby ensures into pulling force and the folding strength of paper; The consumption of hydrogen peroxide is 1.5% oven dry stock (mass ratio, 100% hydrogen peroxide is to oven dry stock), and enzymatic deinking agent consumption is 0.4% oven dry stock (mass ratio, the oven dry stock of 100%E1688);
(5) bleaching: carry out the FAS bleaching in the tower dense the floating of height, enter pulp storage tank behind the pulp washing through bleaching; The process conditions of bleaching are: 85 ℃ of bleaching temperatures, FAS consumption 0.6%, FAS:NaOH=2:1, E1688:0.1% oven dry stock (mass ratio, the oven dry stock of 100%E1688), pH value≤9, time 60min;
(6) join slurry: use wet strength agent when joining slurry, concentration is 18%, and use amount is the 25kg/t oven dry stock, joins slurry by following proportioning, obtains the finished product slurry:
Cationic starch: 2.5% oven dry stock (mass percent concentration);
Alkyl ketene dimer (AKD): 2.5% oven dry stock (mass percent concentration);
Fineness 〉=1500 purposes are ground CaCO
3: 〉=20% oven dry stock (mass percent concentration);
Polyacrylamide (PAM): 350ppm/t oven dry stock (mass percent concentration);
(7) copy paper: process conditions are: finished product slurry beating degree reaches 35 ° of SR;
Online concentration: the 0.5%(mass concentration), online pH value 9.0;
(8), top sizing:
1. raw material: corn ative starch, Cypres, brightening agent;
2. configuration proportion: corn ative starch 125kg/t oven dry stock;
Cypres 2kg/t oven dry stock;
Brightening agent 2kg/t oven dry stock;
3. concentration: the 12%(mass percent concentration);
(9) rewinding, cut choosing/packing.
High-grade electro-photographic paper by above-mentioned process production:
Quantitatively: 80g/m
2
Moisture content: the 5.5%(mass content);
Thickness: 0.10mm;
The thickness banner is poor: 4.5%;
The surface absorbs weight: 28g/m
2
Whiteness: 88%;
Opacity: 92;
Pulling force: horizontal 12.5N
Vertical 25N
Smoothness: the equal 20S of positive and negative
Dirt count: 0.2-0.5mm
2: 70(/m
2)
0.5-1.5mm
2: 4(/m
2)
＞1.50mm
2: 0.
Claims (4)
1. the production method of an electro-photographic paper is characterized in that, described production method mainly may further comprise the steps:
(1) waste paper letter sorting: brown paper, corrugated paper, the packing material of sneaking into are picked, manually pick up choosing and obtain the high-quality old and useless newspaper;
(2) size degradation: will send into the rotary drum pulper through conveying equipment through picking up the high-quality old and useless newspaper of choosing, and add hot water and alkali simultaneously and carry out size degradation, and obtain containing the slurry of a certain amount of printing ink and viscose glue thing;
(3) deinking: at deinking tank printing ink and viscose glue thing in step (2) the gained slurry are carried out flotation, the employing mass ratio is that the enzymatic deinking agent E1688 of oven dry stock 0.1-0.4% carries out deinking;
(4) making beating: adopt beater to pull an oar in the mode of slight rubbing, add hydrogen peroxide and enzymatic deinking agent in the beater import;
(5) bleaching: carry out the FAS bleaching in the tower dense the floating of height, enter pulp storage tank behind the pulp washing through bleaching; The process conditions of bleaching are: bleaching temperature 80-85 ℃, and FAS consumption 0.3-0.6%, FAS:NaOH=1-2:1, E1688:0.05-0.1% oven dry stock (mass ratio, the oven dry stock of 100%E1688), pH value≤9, time 60-90min;
(6) join slurry: use wet strength agent when joining slurry, concentration is 12-18%, and use amount is the 25-35kg/t oven dry stock, joins slurry by following proportioning, obtains the finished product slurry:
Cationic starch: 1.0-2.5% oven dry stock (mass percent concentration);
Alkyl ketene dimer (AKD): 1.0-2.5% oven dry stock (mass percent concentration);
Fineness 〉=1500 purposes are ground CaCO
3: 〉=20% oven dry stock (mass percent concentration);
Polyacrylamide (PAM): 250-350ppm/t oven dry stock (mass percent concentration);
(7) copy paper: process conditions are: finished product slurry beating degree reaches 30-35 ° of SR;
Online concentration: the 0.4-0.5%(mass concentration), online pH value 7.0-9.0;
(8), top sizing:
1. raw material: corn ative starch, Cypres, brightening agent;
2. configuration proportion: corn ative starch 75-125kg/t oven dry stock;
Cypres 2-6kg/t oven dry stock;
Brightening agent 2-6kg/t oven dry stock;
3. concentration: the 8.0-12%(mass percent concentration);
(9) rewinding, cut choosing/packing.
2. according to the described production method of claim 1, it is characterized in that step (2) hot water is temperature 50-60 ℃, alkali is NaOH, and consumption is the 0.3-0.5% of high-quality old and useless newspaper dry weight.
3. according to the described production method of claim 1, it is characterized in that step (4) making beating is based on desanding and remove fiber impurity, takes the mode of slight rubbing, reduces the shearing to fiber.
4. according to the described production method of claim 1, it is characterized in that the consumption of step (4) hydrogen peroxide is 1.0-1.5% oven dry stock (mass ratio), enzymatic deinking agent consumption is 0.1-0.4% oven dry stock (mass ratio).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193539.9A CN103290729B (en) | 2013-05-23 | 2013-05-23 | Production method of environment-friendly type electrostatic copy paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310193539.9A CN103290729B (en) | 2013-05-23 | 2013-05-23 | Production method of environment-friendly type electrostatic copy paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103290729A true CN103290729A (en) | 2013-09-11 |
| CN103290729B CN103290729B (en) | 2014-08-27 |
Family
ID=49092220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310193539.9A Active CN103290729B (en) | 2013-05-23 | 2013-05-23 | Production method of environment-friendly type electrostatic copy paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103290729B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643588A (en) * | 2013-12-04 | 2014-03-19 | 福建省晋江优兰发纸业有限公司 | Formula and production method of copy paper |
| CN104452383A (en) * | 2014-12-04 | 2015-03-25 | 德州华北纸业有限公司 | Environment-friendly type production method of water transfer printing body paper |
| CN104631201A (en) * | 2015-01-08 | 2015-05-20 | 江苏理文造纸有限公司 | Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling |
| CN105908551A (en) * | 2016-06-30 | 2016-08-31 | 福建省晋江优兰发纸业有限公司 | Medium-low concentration hydraulic pulp grinding method used for copy paper |
| CN106120461A (en) * | 2016-06-28 | 2016-11-16 | 广州造纸股份有限公司 | A kind of paper paper and preparation method thereof |
| CN110952358A (en) * | 2018-09-27 | 2020-04-03 | 台山市弘成纸业有限公司 | Preparation method of copy paper |
| CN112609503A (en) * | 2020-12-10 | 2021-04-06 | 岳阳林纸股份有限公司 | Surface sizing solution for electrostatic copying paper and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580422A (en) * | 1993-07-27 | 1996-12-03 | Hoechst Celanese Corporation | Brightening color dyed wastepaper with a bleaching agent and a quaternary compound |
| CN1584205A (en) * | 2004-05-28 | 2005-02-23 | 岳阳纸业股份有限公司 | Special pigment finishing offset paper and producing method thereof |
| JP2005226200A (en) * | 2004-02-16 | 2005-08-25 | Mitsui Chemicals Inc | Paper making method |
| CN101851872A (en) * | 2010-06-22 | 2010-10-06 | 岳阳纸业股份有限公司 | Pulping technology for deinked waste paper pulp used for making high-grade culture printing paper |
| CN101851873A (en) * | 2010-06-23 | 2010-10-06 | 岳阳纸业股份有限公司 | Manufacturing method of environment-friendly copying paper |
-
2013
- 2013-05-23 CN CN201310193539.9A patent/CN103290729B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580422A (en) * | 1993-07-27 | 1996-12-03 | Hoechst Celanese Corporation | Brightening color dyed wastepaper with a bleaching agent and a quaternary compound |
| JP2005226200A (en) * | 2004-02-16 | 2005-08-25 | Mitsui Chemicals Inc | Paper making method |
| CN1584205A (en) * | 2004-05-28 | 2005-02-23 | 岳阳纸业股份有限公司 | Special pigment finishing offset paper and producing method thereof |
| CN101851872A (en) * | 2010-06-22 | 2010-10-06 | 岳阳纸业股份有限公司 | Pulping technology for deinked waste paper pulp used for making high-grade culture printing paper |
| CN101851873A (en) * | 2010-06-23 | 2010-10-06 | 岳阳纸业股份有限公司 | Manufacturing method of environment-friendly copying paper |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643588A (en) * | 2013-12-04 | 2014-03-19 | 福建省晋江优兰发纸业有限公司 | Formula and production method of copy paper |
| CN103643588B (en) * | 2013-12-04 | 2016-05-04 | 福建省晋江优兰发纸业有限公司 | A kind of formula of copy paper and production method thereof |
| CN104452383A (en) * | 2014-12-04 | 2015-03-25 | 德州华北纸业有限公司 | Environment-friendly type production method of water transfer printing body paper |
| CN104452383B (en) * | 2014-12-04 | 2017-04-19 | 德州华北纸业有限公司 | Environment-friendly type production method of water transfer printing body paper |
| CN104631201A (en) * | 2015-01-08 | 2015-05-20 | 江苏理文造纸有限公司 | Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling |
| CN106120461A (en) * | 2016-06-28 | 2016-11-16 | 广州造纸股份有限公司 | A kind of paper paper and preparation method thereof |
| CN105908551A (en) * | 2016-06-30 | 2016-08-31 | 福建省晋江优兰发纸业有限公司 | Medium-low concentration hydraulic pulp grinding method used for copy paper |
| CN110952358A (en) * | 2018-09-27 | 2020-04-03 | 台山市弘成纸业有限公司 | Preparation method of copy paper |
| CN112609503A (en) * | 2020-12-10 | 2021-04-06 | 岳阳林纸股份有限公司 | Surface sizing solution for electrostatic copying paper and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103290729B (en) | 2014-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103290729B (en) | Production method of environment-friendly type electrostatic copy paper | |
| CN102677532B (en) | Process for preparing cultural paper by utilizing full-recovered pulp | |
| CN103321088B (en) | Renewable high-strength corrugated medium and its production method | |
| CN106087522B (en) | A kind of production method of the high thickness chipboard of ash-rich | |
| CN101333784B (en) | Novel energy-conserving environment-protecting complete-regeneration coating white cardboard and method for preparing same | |
| CN108385426A (en) | A method of producing the low special corrugating medium of gram weight and high strength degree electric business using domestic waste paper | |
| CN108505372A (en) | A method of producing the low special craft paper of gram weight and high strength degree electric business using domestic waste paper | |
| CN104641039A (en) | Waterproof recycled paper and production method thereof | |
| KR100288119B1 (en) | Recycling Method of Corrugated Cardboard Using Flotation and Enzyme Treatment | |
| CN103437227B (en) | A kind of production method of Deinking Pulp | |
| CN105603801A (en) | Production process for producing craft paper from old paper stock | |
| CN104631196A (en) | Single-layer superlow-gram-weight liner cardboard paper production method | |
| CN111826991A (en) | Production process of high-strength corrugated paper | |
| CN104195876A (en) | Environmental-friendly advertisement magazine paper and manufacturing method thereof | |
| CN106638079A (en) | Method for producing antistatic paper pulp | |
| CN115094661A (en) | Craft paper and preparation method thereof | |
| CN103451984A (en) | Method for producing neutral environmental-friendly artistic card paper by adopting reclaimed waste paper as raw materials | |
| Eckhart | Recyclability of Cartonboard and carton | |
| CN107059467A (en) | A kind of manufacturing process of high-grade paper products | |
| CN101250838A (en) | Method for producing hot-melting artistic anti-fake paper | |
| CN104631201A (en) | Process for producing low-gram-weight and high-strength heavy packaging craft paper by waste paper recycling | |
| CN104695264B (en) | Second hand cases paperboard ink and gluing thing synchronization process enzyme compositions and application thereof | |
| CN216663636U (en) | High-breaking-resistance multilayer kraft cardboard paper | |
| CN114561833A (en) | Production method of single-layer white pulp fine dried noodle white-surface kraft liner board | |
| CN109750554A (en) | A kind of corrugated paper preparation process and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |