CN115058917A - Coating craft paper base coating and preparation method thereof - Google Patents
Coating craft paper base coating and preparation method thereof Download PDFInfo
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- CN115058917A CN115058917A CN202210806047.1A CN202210806047A CN115058917A CN 115058917 A CN115058917 A CN 115058917A CN 202210806047 A CN202210806047 A CN 202210806047A CN 115058917 A CN115058917 A CN 115058917A
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- 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
- 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
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
-
- 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
-
- 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
- D21H21/28—Colorants ; Pigments or opacifying agents
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
Abstract
The invention discloses a coated kraft liner coating and a preparation method thereof, wherein the coated kraft liner coating comprises the following components in parts by weight: 4280-4300 parts of calcium carbonate; 625-635 parts of calcined porcelain clay; 590-600 parts of porcelain clay; 595-605 parts of styrene-butadiene latex; 185-190 parts of starch adhesive; 8-9 parts of a dispersing agent; 16-17 parts of a thickening agent; 19-20 parts of a lubricant; 19-20 parts of a water repellent agent; 7-8 parts of a blue dye; 17-18 parts of a purple dye; 11-12 parts of caustic soda; 1.1-1.3 parts of a foam inhibitor; 11-12 parts of a whitening agent; 50-80 parts of clear water. The coating craft paper base coating provided by the invention has good covering, opacity and ink absorption performance.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a craft paper bottom coating and a preparation method thereof.
Background
Coated craft generally consist of two coats (base coat and top coat) and four paddles (top coat, under coat, core and under coat). The coating layer mainly has the function of improving the whiteness, the printing effect and the like of the coated white board. In the prior art, the covering property and the opacity of a bottom coating of the coated kraft liner are general, and the whiteness, the printing effect and the like of the coated kraft liner are negatively influenced. Therefore, there is a need for a new coating for coating kraft liner, which can improve the hiding and opacity of the coated kraft liner.
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 coating for coating the craft paper base coat and a preparation method thereof, and aims to solve the technical problem that the hiding performance and the opacity of the coating for coating the craft paper base coat in the prior art are poor.
In order to achieve the purpose, the invention adopts the following technical scheme:
the coating craft paper base coating comprises the following components in parts by weight:
preferably, the coating craft paper prime coat comprises the following components in parts by weight:
preferably, in the coating kraft paper base coating, the particles with the particle size not more than 2 microns in the calcium carbonate account for 58-60% of the total mass of the calcium carbonate.
Preferably, in the coated kraft liner paint, the viscosity range of china clay is 200-300 cps.
Preferably, in the coating craft paper prime coat, the viscosity range of the starch adhesive is 300-400 cps.
The invention correspondingly provides a preparation method of the cloth kraft paper base coating, which mainly comprises the following steps:
(1) preparing the components in parts by weight;
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, maintaining high-speed stirring for a period of time, and then switching to low-speed stirring;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and then adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after a period of time.
Preferably, in the preparation method of the bottom coating for the Buchner card paper, the low speed is 800 revolutions per minute, and the high speed is 1200 revolutions per minute.
Preferably, in the preparation method of the base coating for the Buchner card paper, in the step (4), the high-speed stirring is maintained for 2 minutes, and then the stirring is switched to the low-speed stirring.
Preferably, in the preparation method of the base coating of the Buchner card paper, the stirring is stopped after 5 minutes of stirring in the step (6).
Has the beneficial effects that: the invention provides a coating craft paper prime coat and a preparation method thereof, wherein particles with the particle size of not more than 2 microns account for 58-60% of the total mass of calcium carbonate, and the calcium carbonate particles are finer and finer on the whole, which is beneficial to improving the covering property of the coating. Because the calcined china clay particles are in a needle shape or a sheet shape, the calcined china clay particles have good covering, opacity and ink absorption performance, and further improve the covering and opacity of the coating. In addition, the calcined china clay also has higher whiteness, which is beneficial to improving the whiteness of the coating.
Detailed Description
The invention provides a bottom coating for coating kraft liner and a preparation method 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 more clear. 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 cloth craft paper base coating comprises the following components in parts by weight:
preferably, the coating kraft paper base coating comprises the following components in parts by weight:
preferably, in the calcium carbonate, particles with the particle size of not more than 2 microns account for 58-60% of the total mass of the calcium carbonate.
Preferably, the viscosity of the china clay ranges from 200 to 300 cps.
Preferably, the viscosity of the starch adhesive is in the range of 300 to 400 cps.
The invention correspondingly provides a preparation method of the cloth kraft paper base coating, which mainly comprises the following steps:
(1) preparing the components in parts by weight;
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping high-speed stirring for a period of time, and then switching to low-speed stirring;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after a period of time.
Preferably, the low speed is 800 revolutions per minute and the high speed is 1200 revolutions per minute.
Preferably, in step (4), the stirring speed is maintained for 2 minutes and then the stirring speed is switched to low speed stirring.
Preferably, the stirring is stopped after 5 minutes of stirring in step (6).
The type of the stirring device is not particularly limited in this application, and as a preferred example, the stirring device has a volume of 4.5 cubic meters and a corresponding stirring motor with a power of 120 kw.
The above agents such as a suds suppressor, a dispersant, a thickener, a brightener, a water repellent, a blue dye (or "blue stain"), and a violet dye (or "violet stain") used in the papermaking field are per se known in the art and are not specifically limited herein.
For ease of understanding, the following is further described in connection with the examples. In the examples: the particles with the particle size not more than 2 microns in the calcium carbonate account for 58-60 percent of the total mass of the calcium carbonate. The solid content of calcium carbonate is 75%, the solid content of calcined china clay is 64%, the solid content of china clay is 68%, the solid content of styrene-butadiene latex is 50%, and the solid content of caustic soda is 32%; the solid content of the starch adhesive is 45%, 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%, the solid content of the purple dye is 2%, the solid content of the foam inhibitor is 98-100%, and the solid content of the whitening agent is 30%. The low speed is 800 revolutions per minute, and the high speed is 1200 revolutions per minute.
Example (1)
(1) Preparing the components in parts by weight; wherein:
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping stirring at a high speed for 2 minutes, and then stirring at a low speed;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after 5 minutes.
Example (2)
(1) Preparing the components in parts by weight; wherein:
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping stirring at a high speed for 2 minutes, and then stirring at a low speed;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after 5 minutes.
Example (3)
(1) Preparing the components in parts by weight; wherein:
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping high-speed stirring for 2 minutes, and then switching to low-speed stirring;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after 5 minutes.
Example (4)
(1) Preparing the components in parts by weight; wherein:
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and then adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping stirring at a high speed for 2 minutes, and then stirring at a low speed;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after 5 minutes.
The coatings prepared in examples 1 to 4 were tested, respectively, and the results were as follows:
in the prior art, the particle size of calcium carbonate in the coating kraft liner coating is usually larger, and in the invention, the particles with the particle size of not more than 2 microns account for 58-60% of the total mass of calcium carbonate, and the calcium carbonate particles are more delicate as a whole, thereby being beneficial to improving the covering property of the coating. Because the calcined china clay particles are in a needle shape or a sheet shape, the calcined china clay particles have good covering, opacity and ink absorption performance, and further improve the covering and opacity of the coating. In addition, the calcined china clay also has higher whiteness, which is beneficial to improving the whiteness of the 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 coating for coating the craft paper base coat is characterized by comprising the following components in parts by weight:
2. the coated craft paper base coating according to claim 1, characterized by comprising the following components in parts by weight:
3. the coated craft paper base coating according to claim 1, wherein the calcium carbonate particles with a particle size of not more than 2 μm account for 58-60% of the total mass of the calcium carbonate.
4. The coated craft paper undercoat paint according to claim 1, wherein the viscosity of the china clay ranges from 200 to 300 cps.
5. The coated craft paper base coating according to claim 1, wherein the viscosity of the starch adhesive is in the range of 300 to 400 cps.
6. A method of preparing the cloth kraft liner coating of claim 1, comprising the steps of:
(1) preparing the components in parts by weight;
(2) adding the prepared calcium carbonate into stirring equipment, and starting low-speed stirring by the stirring equipment;
(3) stirring for 2 minutes, adding the prepared calcined china clay into stirring equipment, and stirring for 2 minutes, and adding the prepared china clay into the stirring equipment; stirring for 2 minutes, and adding the prepared dispersing agent into stirring equipment; stirring for 2 minutes, adding the prepared foam inhibitor into stirring equipment, and stirring at a high speed by using the stirring equipment;
(4) stirring for 2 minutes, and then sequentially adding the prepared clear water into stirring equipment; stirring for 10 minutes, adding the prepared thickening agent, stirring for 5 minutes, adding the prepared starch adhesive, keeping high-speed stirring for a period of time, and then switching to low-speed stirring;
(5) adding the prepared blue dye into stirring equipment, stirring for 2 minutes, and adding the prepared purple dye into the stirring equipment; stirring for 2 minutes, and adding the prepared water repellent agent into a stirring device; stirring for 2 minutes, and then adding the prepared lubricant into stirring equipment; stirring for 2 minutes, and adding the prepared caustic soda into stirring equipment; stirring for 2 minutes, and then adding the prepared styrene-butadiene latex into stirring equipment; stirring for 5 minutes, and adding the prepared whitening agent into stirring equipment;
(6) stirring was stopped after a period of time.
7. The method for preparing the cloth kraft liner coating according to claim 6, wherein the low speed is 800 rpm and the high speed is 1200 rpm.
8. The method for preparing the cloth kraft paper base coating according to claim 6, wherein in the step (4), the stirring is maintained at the high speed for 2 minutes and then the stirring is switched to the low speed stirring.
9. The method for preparing the cloth kraft paper base coating according to claim 6, wherein the stirring is stopped after 5 minutes of stirring in step (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210806047.1A CN115058917A (en) | 2022-07-08 | 2022-07-08 | Coating craft paper base coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210806047.1A CN115058917A (en) | 2022-07-08 | 2022-07-08 | Coating craft paper base coating and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115058917A true CN115058917A (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210806047.1A Pending CN115058917A (en) | 2022-07-08 | 2022-07-08 | Coating craft paper base coating and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586318A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
| CN111778771A (en) * | 2020-02-28 | 2020-10-16 | 东莞建晖纸业有限公司 | Normal production conversion process without changing paper surface color |
| CN113174778A (en) * | 2021-04-29 | 2021-07-27 | 玖龙纸业（东莞）有限公司 | Coating for papermaking and preparation method thereof |
| CN114277607A (en) * | 2021-12-27 | 2022-04-05 | 湛江晨鸣浆纸有限公司 | Coated white cardboard and production process thereof |
-
2022
- 2022-07-08 CN CN202210806047.1A patent/CN115058917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586318A (en) * | 2009-07-07 | 2009-11-25 | 昌乐世纪阳光纸业有限公司 | Coated white-top kraft liner board and manufacturing method thereof |
| CN111778771A (en) * | 2020-02-28 | 2020-10-16 | 东莞建晖纸业有限公司 | Normal production conversion process without changing paper surface color |
| CN113174778A (en) * | 2021-04-29 | 2021-07-27 | 玖龙纸业（东莞）有限公司 | Coating for papermaking and preparation method thereof |
| CN114277607A (en) * | 2021-12-27 | 2022-04-05 | 湛江晨鸣浆纸有限公司 | Coated white cardboard and production process thereof |
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