High-turning-speed multi-layer coating paint

A multi-layer coating and high-velocity technology, which is applied to paper coatings, coatings, pigmented coatings, etc., can solve problems such as the negative impact on corporate profit margins, reduce high-shear viscosity, improve paper surface properties, The effect of reducing drag

Inactive Publication Date: 2015-01-28
HAINAN JINHAI PULP & PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of pulp price, it will have a great negative impact on the profit margin of the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of coating of high vehicle speed multi-layer coating, it is characterized in that: this coating formula mainly comprises pre-coat coating, mid-coat coating and surface coating; Said pre-coat coating formula comprises ground calcium carbonate, coating starch and latex; The solid content is 58%; pH8.5; wherein the parts by weight of each component are: 100 parts of heavy calcium carbonate, 5 parts of coated starch, and 5 parts of latex; the formula of the intermediate coating includes heavy calcium carbonate, coated starch , latex and thickener; solid content at 66%; pH 8.5; wherein parts by weight of each component: 100 parts of heavy calcium carbonate, 4 parts of coated starch, 7 parts of latex, 0.1 part of thickener; The coating formula includes heavy calcium carbonate, latex and thickener; the solid content is 68%; pH 8.5; wherein the parts by weight of each component are: 100 parts of heavy calcium carbonate, 10 parts of latex, and 0.3 part of thickener; The t...

Embodiment 2

[0025]A kind of coating of high vehicle speed multi-layer coating, it is characterized in that: this coating formula mainly comprises pre-coat coating, mid-coat coating and surface coating; Said pre-coat coating formula comprises ground calcium carbonate, coating starch and latex; The solid content is 62%; pH 8.9; wherein the parts by weight of each component are: 100 parts of heavy calcium carbonate, 8 parts of coated starch, and 7 parts of latex; the formula of the intermediate coating includes heavy calcium carbonate, coated starch, Latex and thickener; solid content at 68%; pH 8.9; wherein parts by weight of each component: 100 parts of heavy calcium carbonate, 5 parts of coating starch, 8 parts of latex, 0.3 part of thickener; the top coat The paint formula includes heavy calcium carbonate, kaolin, latex and thickener; the solid content is 70%; pH 8.8; wherein the parts by weight of each component: 80 parts of heavy calcium carbonate, 20 parts of kaolin, 10 parts of latex,...

Embodiment 3

[0031] A kind of coating of high vehicle speed multi-layer coating, it is characterized in that: this coating formula mainly comprises pre-coat coating, mid-coat coating and surface coating; Said pre-coat coating formula comprises ground calcium carbonate, coating starch and latex; The solid content is 66%; pH9.0; wherein the parts by weight of each component: 100 parts of heavy calcium carbonate, 8 parts of coated starch, and 8 parts of latex; the formula of the intermediate coating includes heavy calcium carbonate, coated starch , latex and thickener; solid content at 70%; pH9.0; wherein parts by weight of each component: 100 parts of heavy calcium carbonate, 6 parts of coated starch, 9 parts of latex, 0.5 part of thickener; The top coating formula includes heavy calcium carbonate, latex and thickener; the solid content is 72%; 0.5 parts of thickener; the thickener is a synthetic polyacrylic acid polymer, 40% solid content, 0.5 parts by weight; carboxymethyl cellulose CMC, 1...

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Abstract

The invention discloses a high-turning-speed multi-layer coating paint. The paint formula mainly comprises precoating paint, middle-coating paint and surface-coating paint. The paint formula comprises the compositions in parts by weight: 70-100 parts of heavy calcium carbonate, 0-30 parts of kaolin, 5-12 parts of latex, 5-8 parts of coating starch, and 0.1-0.5 part of a thickening agent. Paper is subjected to machine coating by employing a coating manner of two layers of precoating, one layer of middle coating and one layer of surface coating or a coating manner of one layer of precoating, one layer of middle coating and one layer of surface coating. Bottom coating employs metered glue-applying coating, and the coating amount is relatively low; and the middle/surface coating employs scraper coating, and the coating amount is relatively high. The formula helps to effectively reduce resistance of paint during coating, and improve the smoothness and the glossiness of coated paper. The paint is applicable to machine coating, is capable of effectively improving coating amount, improving surface properties of finished paper, enabling the cost per ton of paper to be substantial reduced and improve the competitiveness of the product.

Description

[0001] technical field [0002] The invention belongs to the technical field of coated paper production, and in particular relates to a high-velocity multi-layer coating coating. Background technique [0003] The cost of pulp accounts for about 60 to 70% of the overall production cost of the paper industry. With the increase of pulp price, it will have a great negative impact on the profit margin of the enterprise. Compared with coated paper, the price of inorganic salts in coatings, such as calcium carbonate and kaolin, is far lower than that of paper pulp. If more coatings can be used in the production process to increase the coating amount of paper, it will be effective. Reduce production costs, and improve the printing suitability of products to improve the competitiveness of enterprises. [0004] In the above background, in order to ensure the runnability of the coating machine and obtain better coated paper quality, it is necessary to optimize the coating ratio for d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/38D21H19/54D21H19/40D21H19/36
Inventor 翁浥程
Owner HAINAN JINHAI PULP & PAPER
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