CN115142294A - White paperboard middle coating and production process thereof - Google Patents
White paperboard middle coating and production process thereof Download PDFInfo
- Publication number
- CN115142294A CN115142294A CN202210691359.2A CN202210691359A CN115142294A CN 115142294 A CN115142294 A CN 115142294A CN 202210691359 A CN202210691359 A CN 202210691359A CN 115142294 A CN115142294 A CN 115142294A
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- Prior art keywords
- parts
- stirring
- solid content
- coating
- white board
- 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.)
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Links
- 238000000576 coating method Methods 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 44
- 239000011087 paperboard Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 42
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- 239000000123 paper Substances 0.000 claims abstract description 25
- 229920002472 Starch Polymers 0.000 claims abstract description 24
- 239000008107 starch Substances 0.000 claims abstract description 24
- 235000019698 starch Nutrition 0.000 claims abstract description 24
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004816 latex Substances 0.000 claims abstract description 14
- 229920000126 latex Polymers 0.000 claims abstract description 14
- 239000002174 Styrene-butadiene Substances 0.000 claims abstract description 13
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011115 styrene butadiene Substances 0.000 claims abstract description 13
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 12
- 239000001045 blue dye Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- 239000002562 thickening agent Substances 0.000 claims abstract description 11
- 239000001047 purple dye Substances 0.000 claims abstract description 10
- 239000005871 repellent Substances 0.000 claims abstract description 9
- 230000002940 repellent Effects 0.000 claims abstract description 9
- 239000006260 foam Substances 0.000 claims abstract description 8
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 69
- 239000002245 particle Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 5
- 238000009775 high-speed stirring Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/64—Inorganic compounds
Abstract
The invention discloses a white board paper middle coating and a production process thereof. The white board paper middle coating comprises the following components in parts by weight: 5050-5065 parts of calcium carbonate; 300-305 parts of porcelain clay; 215 to 225 parts of coating starch; 45-48 parts of starch adhesive; 795-810 parts of styrene-butadiene latex; 1.1-1.3 parts of a foam inhibitor; 8-9 parts of a dispersing agent; 15-17 parts of a thickening agent; 18-21 parts of a lubricant; 18-21 parts of water repellent agent; 6-7 parts of blue dye; 17-18 parts of purple dye; 14-15 parts of caustic soda; 40-80 parts of water. The white board paper seed coating provided by the invention is simple to produce, improves the performances such as viscosity, solid content and water retention property on the premise of controlling the production cost, and meets the increasingly higher requirements of the papermaking field on the performance of the white board paper seed coating.
Description
Technical Field
The invention relates to the field of papermaking, in particular to a white board middle coating and a production process thereof.
Background
The coated white board is a processed board which is made by coating white paint on an original board and then finishing, and is mainly used for making a packing box after single-sided color printing. The coated white board paper has the main performance characteristics of higher whiteness of the coated surface, better smoothness, ink absorbability and printing glossiness, and better stiffness and folding resistance of the paper board, so that the coated white board paper can carry out high-quality color offset printing and gravure printing, can meet the requirement of packaging, and is a high-quality material for manufacturing middle-high grade commodity packaging boxes. However, the quality of coated white board is more and more demanding, and the optimization of white board coating is more and more important. Therefore, a new technical scheme is needed to be provided, and the coating in the white board paper is further optimized under the condition of controlling the production cost, so that the viscosity, the water retention property, the coating strength and the like of the coating are improved.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a white paperboard floating coat and a production process thereof, and aims to solve the technical problem that the performance of the white paperboard floating coat in the prior art needs to be further improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the white paperboard middle coating comprises the following components in parts by weight:
preferably, the white board middle coating comprises the following components in parts by weight:
preferably, in the white board paper intermediate coating, particles with the particle size not more than 2 microns in calcium carbonate account for 60-70% of the total mass of the calcium carbonate.
Preferably, in the white board paper intermediate coating, the solid content of calcium carbonate is 75%, the solid content of china clay is 66%, the solid content of coating starch is 36%, the solid content of starch adhesive is 43%, the solid content of styrene-butadiene latex is 50%, and the solid content of caustic soda is 32%.
The invention correspondingly provides a production process of the white paperboard floating coat, which comprises the following main steps:
(1) Preparing the components in parts by weight;
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed and then at a high speed;
(3) Adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into stirring equipment in sequence, and stirring at a high speed and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment for low-speed stirring;
(5) The stirring was stopped.
Preferably, in the production process of the white board floating coat, the low speed is 800 revolutions per minute, and the high speed is 1200 revolutions per minute.
Preferably, in the production process of the white board floating coat, in the step (2), the low-speed stirring is performed for 1 minute, and then the high-speed stirring is performed for 10 minutes.
Preferably, in the production process of the white board floating coat, in the step (3), the stirring at a high speed is switched to the stirring at a low speed after 10 minutes.
Preferably, in the production process of the white board floating coat, in the step (4), the stirring is carried out at a low speed for 35 minutes.
Has the advantages that: compared with the prior art, the white board paper type coating provided by the invention is simple to produce, improves the performances such as viscosity, solid content and water retention property on the premise of controlling the production cost, and meets the increasingly higher requirements of the papermaking field on the white board paper type coating.
Detailed Description
The invention provides a white board middle coating and a production process thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a white board paper middle coating which comprises the following components in parts by weight:
preferably, the white board floating coat is characterized by comprising the following components in parts by weight:
preferably, in the white board paper intermediate coating, the particles with the particle size not more than 2 microns in the calcium carbonate account for 60-70% of the total mass of the calcium carbonate.
Preferably, the solid content of the calcium carbonate is 75%, and the solid content of the china clay is 66%; the solid content of the coating starch is 36 percent, and the solid content of the starch adhesive is 43 percent; the solid content of the styrene-butadiene latex is 50 percent, and the solid content of the caustic soda is 32 percent; the solid content of the dispersing agent is 42%, the solid content of the thickening agent is 30%, the solid content of the lubricating agent is 20%, the solid content of the water-resisting agent is 50%, the solid content of the blue dye is 1%, and the solid content of the purple dye is 2%.
The invention correspondingly provides a production process of the white board floating coat, which comprises the following main steps:
(1) Preparing the components in parts by weight;
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed and then at a high speed;
(3) Adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into stirring equipment in sequence, and stirring at a high speed and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment for low-speed stirring;
(5) The stirring was stopped.
Preferably, the low speed is 800 revolutions/min, and the high speed is 1200 revolutions/min;
preferably, in the production process of the white board floating coat, in the step (2), the low-speed stirring is performed for 1 minute, and then the high-speed stirring is performed for 10 minutes.
Preferably, in the production process of the white board floating coat, in the step (3), the stirring at a high speed is switched to the low speed stirring after 10 minutes.
Preferably, in the production process of the white board floating coat, in the step (4), the stirring is carried out at a low speed for 35 minutes.
The type of the stirring device is not particularly limited in this application, and as a preference, the stirring device has a volume of 4.5 cubic meters and a corresponding stirring motor has a power of 120 kw.
The above agents such as a suds suppressor, a dispersant, a thickener, a water repellent, a lubricant, a blue dye (or "blue stain"), and a violet dye (or "violet stain") used in the papermaking field are per se the prior art, and are not particularly limited herein.
The present application is further illustrated by the following examples. In the following examples: the particles of the calcium carbonate having a particle size of not more than 2 μm (i.e., a particle size of 2 μm or less) account for 65% of the total mass of the calcium carbonate. The solid content of the calcium carbonate is 75 percent, and the solid content of the china clay is 66 percent; the solid content of the coating starch is 36 percent, and the solid content of the starch adhesive is 43 percent; the solid content of the styrene-butadiene latex is 50 percent, and the solid content of the caustic soda is 32 percent; the solid content of the dispersing agent is 42%, the solid content of the thickening agent is 30%, the solid content of the lubricating agent is 20%, the solid content of the water-resisting agent is 50%, the solid content of the blue dye is 1%, and the solid content of the purple dye is 2%.
Example 1
(1) Preparing the following components in parts by weight:
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed for 1 minute and then at a high speed for 10 minutes;
(3) Sequentially adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into a stirring device, and stirring at a high speed for 10 minutes and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment to stir at a low speed for 35 minutes;
(5) The stirring was stopped.
Example 2
(1) Preparing the following components in parts by weight:
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed for 1 minute and then at a high speed for 10 minutes;
(3) Adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into stirring equipment in sequence, and stirring at a high speed for 10 minutes and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment to stir at a low speed for 35 minutes;
(5) The stirring was stopped.
Example 1
(1) Preparing the following components in parts by weight:
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed for 1 minute and then at a high speed for 10 minutes;
(3) Adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into stirring equipment in sequence, and stirring at a high speed for 10 minutes and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment to stir at a low speed for 35 minutes;
(5) The stirring was stopped.
Example 4
(1) Preparing the following components in parts by weight:
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed for 1 minute and then at a high speed for 10 minutes;
(3) Adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into stirring equipment in sequence, and stirring at a high speed for 10 minutes and then stirring at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment to stir at a low speed for 35 minutes;
(5) The stirring was stopped.
The coatings prepared in examples 1 to 4 were tested, respectively, and the results were as follows:
| test items | Viscosity (cps) | Solid content (%) | pH value | Water Retention (g/m) 2 ) |
| Example 1 | 845s | 65％ | 8.5 | 185 |
| Example 2 | 840 | 68 | 8.8 | 186 |
| Example 3 | 838 | 66 | 8.6 | 182 |
| Example 4 | 842 | 67 | 8.8 | 184 |
The white board paper middle coating provided by the invention has stable viscosity and solid content in a test, and the water retention performance of the coating is greatly improved. In practical use, the coating amount of the paper surface is relatively stable, and the coating strength is improved, so that the white board paper has certain help for improving the paper surface appearance, the paper folding strength, the paper falling prevention performance and other paper performances of the white board paper. In the invention, the styrene-butadiene latex has the advantages of latex stability, small influence on the viscosity of the coating, high solid content, good fluidity and the like, and has good compatibility with other components in the coating; good film forming property, and high smoothness and glossiness.
Through the analysis, compared with the prior art, the white board paper seed coating provided by the invention is simple to produce, improves the performances such as viscosity, solid content and water retention property on the premise of controlling the production cost, and meets the increasingly higher requirements of the papermaking field on the performance of the white board paper seed coating.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (9)
1. The white paperboard floating coat is characterized by comprising the following components in parts by weight:
2. the white board intercoat coating of claim 1, comprising the following components in parts by weight:
3. the white board paper intercoat coating of claim 1, wherein the calcium carbonate comprises particles having a particle size of not greater than 2 μm in an amount of 60 to 70% by weight based on the total weight of the calcium carbonate.
4. The white board paper midcoat paint according to claim 1, wherein the calcium carbonate has a solid content of 75%, the china clay has a solid content of 66%, the coating starch has a solid content of 36%, the starch adhesive has a solid content of 43%, the styrene-butadiene latex has a solid content of 50%, and the caustic soda has a solid content of 32%.
5. A process for producing the white board intercoat coating of claim 1, comprising the steps of:
(1) Preparing the components in parts by weight;
(2) Adding the calcium carbonate prepared in the step (1) into stirring equipment, and stirring at a low speed and then at a high speed;
(3) Sequentially adding the foam inhibitor, the porcelain clay, the dispersing agent, the clear water, the thickening agent, the coating starch and the starch adhesive prepared in the step (1) into a stirring device, and stirring at a high speed and then at a low speed;
(4) Sequentially adding the blue dye, the purple dye, the water repellent agent, the lubricant, the caustic soda and the styrene-butadiene latex prepared in the step (1) into stirring equipment for low-speed stirring;
(5) The stirring was stopped.
6. The process according to claim 5, wherein the low speed is 800 rpm and the high speed is 1200 rpm.
7. The process for producing a white paperboard floating coat according to claim 6, wherein in the step (2), the stirring is carried out for 1 minute at a low speed and then for 10 minutes at a high speed.
8. The process for producing a white paperboard floating coat according to claim 5, wherein in the step (3), the stirring at a high speed is changed to a low speed after 10 minutes.
9. The process for producing a white paperboard floating coat according to claim 6, wherein in the step (4), the stirring is carried out at a low speed for 35 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691359.2A CN115142294A (en) | 2022-06-17 | 2022-06-17 | White paperboard middle coating and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210691359.2A CN115142294A (en) | 2022-06-17 | 2022-06-17 | White paperboard middle coating and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115142294A true CN115142294A (en) | 2022-10-04 |
Family
ID=83408230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210691359.2A Pending CN115142294A (en) | 2022-06-17 | 2022-06-17 | White paperboard middle coating and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115142294A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879512A (en) * | 1995-10-13 | 1999-03-09 | Ecc Internatinal Ltd. | Paper coating |
| CN102995501A (en) * | 2012-11-02 | 2013-03-27 | 吉安集团股份有限公司 | Curtain type coating craft paper and preparation method thereof |
| CN107761457A (en) * | 2017-10-26 | 2018-03-06 | 海南金海浆纸业有限公司 | A kind of environmental protection coating material for high speed |
| CN110629587A (en) * | 2018-12-26 | 2019-12-31 | 江门星辉造纸有限公司 | Plastic uptake coating white board paper and preparation process thereof |
| CN114457623A (en) * | 2022-02-28 | 2022-05-10 | 山东博汇纸业股份有限公司 | Production process of anti-folding and anti-explosion coated card |
-
2022
- 2022-06-17 CN CN202210691359.2A patent/CN115142294A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879512A (en) * | 1995-10-13 | 1999-03-09 | Ecc Internatinal Ltd. | Paper coating |
| CN102995501A (en) * | 2012-11-02 | 2013-03-27 | 吉安集团股份有限公司 | Curtain type coating craft paper and preparation method thereof |
| CN107761457A (en) * | 2017-10-26 | 2018-03-06 | 海南金海浆纸业有限公司 | A kind of environmental protection coating material for high speed |
| CN110629587A (en) * | 2018-12-26 | 2019-12-31 | 江门星辉造纸有限公司 | Plastic uptake coating white board paper and preparation process thereof |
| CN114457623A (en) * | 2022-02-28 | 2022-05-10 | 山东博汇纸业股份有限公司 | Production process of anti-folding and anti-explosion coated card |
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Application publication date: 20221004 |
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