CN110629587A - Plastic uptake coating white board paper and preparation process thereof - Google Patents
Plastic uptake coating white board paper and preparation process thereof Download PDFInfo
- Publication number
- CN110629587A CN110629587A CN201811599720.9A CN201811599720A CN110629587A CN 110629587 A CN110629587 A CN 110629587A CN 201811599720 A CN201811599720 A CN 201811599720A CN 110629587 A CN110629587 A CN 110629587A
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- coating
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- white board
- paper
- plastic uptake
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a plastic uptake coating white board and a preparation process thereof, wherein the white board comprises base paper and a surface coating layer, the base paper is provided with a surface layer, a lining layer, a core layer and a bottom layer, and the surface coating layer comprises a precoating coating layer, a middle coating layer and a surface coating layer. The three coating paint components comprise calcium carbonate, calcined china clay, latex, sodium hydroxide, a defoaming agent, a bactericide, a rheological modifier, a lubricant, a fluorescent brightener and the like in different weight percentages, and the prepared plastic uptake white board paper has good air permeability and high bonding strength among layers of the coating by coating the three coating paints on corresponding positions of the white board paper, so that the coating can not be peeled off during printing and is not easy to foam, firm plastic uptake is realized, and the plastic uptake packaging effect is better.
Description
Technical Field
The invention belongs to the technical field of papermaking, and particularly relates to a plastic uptake coated white board paper and a preparation process thereof.
Background
With the progress of society, people have higher and higher requirements on product packaging. As a novel packaging form, the blister packaging has the advantages of material saving, light weight and good sealing property, and meets the requirement of environmental protection. Coated white board paper is used as the most common packaging material in the blister packaging industry, and the dosage of the coated white board paper is also increasing rapidly. After the blister process, when a PET film or the like is peeled off, the state of peeling from the base paper layer is a criterion for evaluating whether the blister effect is excellent or not, and generally, the blister effect is good when a large amount of peeling is performed from the base paper layer. When the interlayer strength is reduced by making the adhesive film or the like more easily peelable from the base paper, there is a problem that printing bubbles are generated at the time of printing. If the latex is reduced in part in order to improve the permeability of the blister oil, the coating layer is peeled off during printing, and adheres to and stains the printing roller. Because the blister characteristic is opposite to the characteristic of the printing operation, the white board paper has the blister characteristic and improves the problems generated during the printing in consideration of the problem.
Disclosure of Invention
In order to solve the problems, the invention aims to provide the plastic uptake coated white board paper which is used for enabling the coating strength to be moderate, the absorptivity to be good and the associativity to the base paper to be good through an improved coating formula and a base paper formula.
The invention also aims to provide a preparation process of the plastic uptake coated white board, which is used for preparing the plastic uptake coated white board with moderate coating strength, good absorptivity and good combination with base paper through an improved formula and process.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a coated white board paper is made up of surface layer, liner layer, core layer and bottom layer through chemical bleaching of wood pulp, bleaching of waste paper pulp for liner layer, waste paper pulp for core layer and deinking of waste paper pulp for bottom layer, and features high strength and durability, and no pollution.
Quantitative ratio of each raw paper layer: the surface layer is 1, the lining layer is 2, the bottom layer is 2, the core layer is the quantification of the rest part, the ISO whiteness of the lining layer is 68% -73%, 6% -10% of wood powder is added into the core layer, and the size of the wood powder is the size of the wood powder which can pass through a sieve mesh and is # 50.
The ash content of each raw paper layer is 60-65% of GCC (ground calcium carbonate) with the particle size of less than 2 mu m used in white board paper, and the formula proportion is as follows: the surface layer is 1, the lining layer is 1, and the core layer is 2-3. The proportion of the cationic starch is as follows: the surface layer is 1, the lining layer is 1, the core layer is below 1/10, and the white board paper with the structure is coated on one side (3 times of coating).
And (3) applying glue to the surface of the base paper, wherein the starch coating weight of the surface glue is 1.0-1.5 g per square meter.
70-100/0-30 parts of pre-coating GCC/china clay, 13 parts of latex and 10-12 g/square meter
70-100/0-30 parts of middle coating GCC/china clay, 13 parts of latex and 10-12 g/square meter
The top-coating GCC/china clay ranges from 80 to 100/0 to 20, the latex ranges from 15 parts, and the coating weight ranges from 12 to 14 g/square meter
The pre-coating/middle coating uses 65-60% of GCC with the grain diameter of less than 2 μm.
The top coat uses 98-95% GCC with particle size below 2 μm.
The Tg of the latex used in the topcoat material was 8 ℃.
A plastic uptake coating white board paper and a preparation process thereof comprise the following process steps:
mixing the porcelain clay and the ground calcium carbonate dispersion, stirring at the rotating speed of 1500r/min for 10-15 min, adding a color phase regulator, stirring for 3-5 min, uniformly stirring, reducing the stirring rotating speed to 1000r/min, stirring for 3-5 min, finally adding an antifoaming agent, a bactericide, a rheology modifier, a lubricant and sodium hydroxide, wherein a water repellent agent is required to be added for preparing a top coating, a fluorescent whitening agent is required to be added for preparing the top coating, stirring for 3-5 min after adding one component each time, respectively preparing a pre-coating, a middle coating and a top coating according to different component ratios, and drying after coating once.
Wherein the latex is carboxylic styrene-butadiene latex;
wherein the rheology modifier is sodium carboxymethylcellulose;
wherein the water repellent agent is a potassium zirconium carbonate solution;
wherein the bactericide is a mixture of an organic nitrogen-sulfur compound and an organic bromine compound;
wherein the defoaming agent is an organic polyether mixture;
wherein the lubricant is calcium stearate emulsion.
Wherein the color phase regulator is a mixture of phthalocyanine blue BX and permanent violet RL, and the weight percentage of the color phase regulator is 0.001-0.030%.
Compared with the prior art, the invention has the following beneficial effects:
(1) the coating strength of the coated white board paper is higher than that of the base paper, and the strength is moderate;
(2) wood powder is added into the core layer to reduce the interlayer peeling strength;
(3) the coating and the base paper are well combined, the coating cannot be peeled off during printing, the foaming is not easy to occur, firm plastic uptake is realized, and the plastic uptake packaging effect is better when the plastic uptake packaging paper is used for plastic uptake packaging.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a topcoat layer of the present invention;
FIG. 3 is a schematic view of the structure of a raw paper layer according to the present invention;
in the figure: a top coating layer 1; 1-1 of a top coat; 1-2 parts of a middle coating; 1-3 of a precoat layer; a raw paper layer 2; 2-1 of surface layer; a liner layer 2-2; 2-3 parts of a core layer; 2-4 of a bottom layer; and a primer layer 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A coated white board paper is made up of surface layer, liner layer, core layer and bottom layer through chemical bleaching of wood pulp, bleaching of waste paper pulp for liner layer, waste paper pulp for core layer and deinking of waste paper pulp for bottom layer, and features high strength and durability, and no pollution.
Quantitative ratio of each raw paper layer: the surface layer is 1, the lining layer is 2, the bottom layer is 2, the core layer is the fixed quantity of the rest part, the ISO whiteness of the lining layer is 68%, 6% of wood powder is added into the core layer, and the size of the wood powder is the size of the wood powder with a sieve mesh of # 50.
The ash content of each raw paper layer was 60% of GCC (ground calcium carbonate) having a particle size of 2 μm or less, and the formulation ratio was: the surface layer is 1, the lining layer is 1, and the core layer is 2. The proportion of the cationic starch is as follows: the surface layer is 1, the lining layer is 1, the core layer is below 1/10, and the white board paper with the structure is coated on one side (3 times of coating).
Applying glue to the surface of base paper, wherein the starch coating weight of the surface glue is 1.0 g/square meter.
The pre-coating GCC/china clay 70/30, latex 13 parts, coating weight 10 g/square meter
The middle coating GCC/china clay 70/30, latex 13 parts, coating weight 10 g/square meter
The top-coating GCC/china clay 80/20, latex 15 portions, coating weight 12 g/square meter
GCC with a grain size of less than 2 μm is used for precoating/intermediate coating, wherein the grain size of the GCC is 65%.
GCC with a grain size of not more than 2 μm is used for top coating.
The Tg of the latex used in the topcoat material was 8 ℃.
Example 2
A coated white board paper is made up of surface layer, liner layer, core layer and bottom layer through chemical bleaching of wood pulp, bleaching of waste paper pulp for liner layer, waste paper pulp for core layer and deinking of waste paper pulp for bottom layer, and features high strength and durability, and no pollution.
Quantitative ratio of each raw paper layer: the surface layer is 1, the lining layer is 2, the bottom layer is 2, the core layer is the fixed quantity of the rest part, the ISO whiteness of the lining layer is 70%, 8% of wood powder is added into the core layer, and the size of the wood powder is the size of the wood powder with a sieve mesh of # 50.
Regarding ash content of each raw paper layer, 63% of GCC (ground calcium carbonate) having a particle size of 2 μm or less was used in the white board, and the formulation ratio was: the surface layer is 1, the lining layer is 1, and the core layer is 2. The proportion of the cationic starch is as follows: the surface layer is 1, the lining layer is 1, the core layer is below 1/10, and the white board paper with the structure is coated on one side (3 times of coating).
Applying glue to the surface of base paper, wherein the starch coating weight of the surface glue is 1.2 g/square meter.
The precoating coating GCC/china clay is 80/20, the latex is 13 parts, the coating weight is 11 g/square meter
The middle coating GCC/china clay 80/20, latex 13 parts, coating weight 11 g/square meter
The top-coating GCC/china clay 90/10, latex 15 portions, coating weight 13 g/square meter
GCC with 62% of particle size of less than 2 μm is used for pre-coating/intermediate coating.
GCC with a particle size of 96% or less 2 μm was used for top coating.
The Tg of the latex used in the topcoat material was 8 ℃.
Example 3
A coated white board paper is made up of surface layer, liner layer, core layer and bottom layer through chemical bleaching of wood pulp, bleaching of waste paper pulp for liner layer, waste paper pulp for core layer and deinking of waste paper pulp for bottom layer, and features high strength and durability, and no pollution.
Quantitative ratio of each raw paper layer: the surface layer is 1, the lining layer is 2, the bottom layer is 2, the core layer is the fixed quantity of the rest part, the ISO whiteness of the lining layer is 73%, 10% of wood powder is added into the core layer, and the size of the wood powder is that the size of the wood powder can pass through a sieve mesh to be # 50.
For ash content of each raw paper layer, GCC (ground calcium carbonate) having a particle size of 2 μm or less was used at 65% in the white board, and the formulation ratio was: the surface layer is 1, the lining layer is 1, and the core layer is 3. The proportion of the cationic starch is as follows: the surface layer is 1, the lining layer is 1, the core layer is below 1/10, and the white board paper with the structure is coated on one side (3 times of coating).
Applying glue to the surface of base paper, wherein the starch coating weight of the surface glue is 1.5 g/square meter.
The precoating coating GCC/china clay is 100/0, the latex is 13 parts, the coating weight is 12 g/square meter
The middle coating GCC/china clay 100/0, latex 13 parts, coating weight 12 g/square meter
The top-coating GCC/china clay 90/10, latex 15 portions, coating weight 14 g/square meter
The pre-coating/intermediate coating uses 60% GCC with a particle size of 2 μm or less.
GCC with a grain size of 2 μm or less 95% was used for top coating.
The Tg of the latex used in the topcoat material was 8 ℃.
A plastic uptake coating white board paper and a preparation process thereof comprise the following process steps:
mixing the porcelain clay and the ground calcium carbonate dispersion, stirring at the rotating speed of 1500r/min for 10-15 min, adding a color phase regulator, stirring for 3-5 min, uniformly stirring, reducing the stirring rotating speed to 1000r/min, stirring for 3-5 min, finally adding an antifoaming agent, a bactericide, a rheology modifier, a lubricant and sodium hydroxide, wherein a water repellent agent is required to be added for preparing a top coating, a fluorescent whitening agent is required to be added for preparing the top coating, stirring for 3-5 min after adding one component each time, respectively preparing a pre-coating, a middle coating and a top coating according to different component ratios, and drying after coating once.
In conclusion, the plastic uptake coated white board paper provided by the invention improves the structural strength and the plastic uptake effect of the white board paper, and is suitable for the strength enhancement and the plastic uptake effect of various paperboards.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A plastic uptake coating white board paper and a preparation process thereof are characterized in that: the paper layer is made of 4 layers of paper, namely a surface layer, a lining layer, a core layer and a bottom layer, wherein the surface layer is made of chemically bleached wood pulp, the lining layer is made of bleached waste paper pulp, the core layer is made of waste paper pulp, the bottom layer is made of deinked waste paper pulp, and the single-side (3-time coating) coated white board paper is formed by the structure.
2. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that: quantitative ratio of each raw paper layer: the surface layer is 1, the lining layer is 2, the bottom layer is 2, the core layer is the quantification of the rest part, the ISO whiteness of the lining layer is 68% -73%, 6% -10% of wood powder is added into the core layer, and the size of the wood powder is the size of the wood powder which can pass through a sieve mesh and is # 50.
3. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that: the ash content of each raw paper layer is 60-65% of GCC (ground calcium carbonate) with the particle size of less than 2 mu m used in white board paper, and the formula proportion is as follows: the surface layer is 1, the lining layer is 1, and the core layer is 2-3. The proportion of the cationic starch is as follows: the surface layer is 1, the lining layer is 1, the core layer is below 1/10, and the white board paper with the structure is coated on one side (3 times of coating).
4. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that: and (3) applying glue to the surface of the base paper, wherein the starch coating weight of the surface glue is 1.0-1.5 g per square meter.
5. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that:
70-100/0-30 parts of pre-coating GCC/china clay, 13 parts of latex and 10-12 g/square meter
70-100/0-30 parts of middle coating GCC/china clay, 13 parts of latex and 10-12 g/square meter
The top coating GCC/china clay ranges from 80 to 100/0 to 20, the latex accounts for 15 parts, and the coating weight ranges from 12 to 14 g/square meter.
6. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that:
the pre-coating/middle coating uses 65-60% of GCC with the grain diameter of less than 2 μm.
The top coat uses 98-95% GCC with particle size below 2 μm.
7. The plastic uptake coated white board paper and the preparation process thereof according to claim 1, characterized in that: the Tg of the latex used in the topcoat material was 8 ℃.
8. The plastic uptake coated white board paper and the preparation process thereof as claimed in any one of claims 1 to 7, characterized in that the process comprises the following steps:
mixing the porcelain clay and the ground calcium carbonate dispersion, stirring at the rotating speed of 1500r/min for 10-15 min, adding a color phase regulator, stirring for 3-5 min, uniformly stirring, reducing the stirring rotating speed to 1000r/min, stirring for 3-5 min, finally adding an antifoaming agent, a bactericide, a rheology modifier, a lubricant and sodium hydroxide, wherein a water repellent agent is required to be added for preparing a top coating, a fluorescent whitening agent is required to be added for preparing the top coating, stirring for 3-5 min after adding one component each time, respectively preparing a pre-coating, a middle coating and a top coating according to different component ratios, and drying after coating once.
Wherein the latex is carboxylic styrene-butadiene latex;
wherein the rheology modifier is sodium carboxymethylcellulose;
wherein the water repellent agent is a potassium zirconium carbonate solution;
wherein the bactericide is a mixture of an organic nitrogen-sulfur compound and an organic bromine compound;
wherein the defoaming agent is an organic polyether mixture;
wherein the lubricant is calcium stearate emulsion.
Wherein the color phase regulator is a mixture of phthalocyanine blue BX and permanent violet RL, and the weight percentage of the color phase regulator is 0.001-0.030%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811599720.9A CN110629587A (en) | 2018-12-26 | 2018-12-26 | Plastic uptake coating white board paper and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811599720.9A CN110629587A (en) | 2018-12-26 | 2018-12-26 | Plastic uptake coating white board paper and preparation process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN114351502A (en) * | 2021-12-30 | 2022-04-15 | 江苏博汇纸业有限公司 | Friction-resistant coated white card and production method thereof |
| CN114908606A (en) * | 2022-04-19 | 2022-08-16 | 宁波亚洲浆纸业有限公司 | Blister packaging paper, packaging container and manufacturing method of blister packaging paper |
| CN115142294A (en) * | 2022-06-17 | 2022-10-04 | 东莞建晖纸业有限公司 | White paperboard middle coating and production process thereof |
| CN115369683A (en) * | 2022-06-17 | 2022-11-22 | 东莞建晖纸业有限公司 | White paperboard prime coat paint and production process thereof |
| CN115807357A (en) * | 2022-11-22 | 2023-03-17 | 宁波亚洲浆纸业有限公司 | Aluminized paper and preparation method thereof |
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Application publication date: 20191231 |