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Environment-friendly coating for high speed

An environmentally friendly coating and high-speed technology, applied in the field of paper coatings, can solve the problems that the strength and running suitability of biological adhesives cannot be satisfied at the same time, the surface strength of coated paper paper decreases, and the negative impact of paper printing effects, etc., to achieve good paper machine Runnability, excellent printing quality, effect of less usage

Inactive Publication Date: 2018-03-06
HAINAN JINHAI PULP & PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the proportion of latex used is too small, the surface strength of the coated paper will decrease, powder will fall off easily during printing, and the surface of the paper will be pulled up, making it impossible to maintain normal printing requirements.
However, latex is not easy to degrade, and using a high proportion of latex in the coating formula of coated paper will bring harm to the environment
If other degradable bio-adhesives are used instead of latex, the strength and runnability of some bio-adhesives often cannot meet the needs of high-speed paper machines at the same time, and more bio-adhesives are used for paper printing. The effect also has a negative impact

Method used

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  • Environment-friendly coating for high speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An environmentally friendly paint for high vehicle speeds, the paint formulation includes pre-coat paint, mid-coat paint and top-coat paint;

[0024] The pre-paint formula includes grinding calcium carbonate, latex, bio-adhesive and thickener; the solid content is 58%, the viscosity is 280cps, and the pH is 8.8; wherein the parts by weight of each component: grinding calcium carbonate<2um accounts for 100 parts of 60-65% C65 grade, 17 parts of bio-adhesive;

[0025] The formula of the intermediate coating includes ground calcium carbonate, bio-adhesive, latex and thickener; the solid content is 62%, the viscosity is 450cps, and the pH is 8.8; wherein the parts by weight of each component: ground calcium carbonate<2um accounts for 60-65% C65 grade 100 parts, bio-adhesive 7 parts, latex 4 parts, thickener 0.25 parts;

[0026] The formula of the top coating paint includes ground calcium carbonate, china clay, bio-adhesive, latex and thickener; the solid content is 66%, th...

Embodiment 2

[0040] An environmentally friendly paint for high vehicle speeds, the paint formulation includes pre-coat paint, mid-coat paint and top-coat paint;

[0041] The pre-paint formula includes ground calcium carbonate, latex, bio-adhesive and thickener; the solid content is 66%, the viscosity is 250cps, and the pH is 10.3; wherein the parts by weight of each component: ground calcium carbonate<2um proportion 60-65% C65 grade 100 parts, latex 2 parts, bio-adhesive 12 parts, thickener 0.3 parts;

[0042] The formula of the intermediate coating includes ground calcium carbonate, bio-adhesive, latex and thickener; the solid content is 62-67%, the viscosity is 450cps, and the pH is 10; wherein the parts by weight of each component: ground calcium carbonate<2um Accounting for 60-65% 100 parts of C65 grade, 11 parts of bio-adhesive, 1 part of latex, 0.5 parts of thickener;

[0043]The formula of the top coating paint includes ground calcium carbonate, china clay, bio-adhesive, latex and ...

Embodiment 3

[0057] An environmentally friendly paint for high vehicle speeds. The paint formula is divided into three types, namely pre-coat, middle coat and top coat; the pre-coat paint formula includes ground calcium carbonate, bio-adhesive and thickener; The content is 58.5%, the viscosity is 220cps, and the pH is 9.9; the parts by weight of each component are: ground calcium carbonate <2um, accounting for 60-65%, 100 parts of C65 grade, 15 parts of bio-adhesive, and 0.19 parts of thickener; The formula of the intermediate coating includes grinding calcium carbonate, bio-adhesive, latex and thickener; the solid content is 66.5%, the viscosity is 430cps, and the pH is 9.5; wherein the parts by weight of each component: grinding calcium carbonate<2um accounts for Ratio 60-65% C65 grade 100 parts, bio-adhesive 10 parts, latex 1 part, thickener 0.46 parts; the top coating formula includes ground calcium carbonate, china clay, bio-adhesive, latex and thickener The solid content is 69.5%, th...

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Abstract

The invention discloses an environment-friendly coating for high speed. The formula of the coating comprises a pre-coating coating, a medium-coating coating and a surface-coating surface; the formulaof the pre-coating coating comprises the following components in parts by weight: 100 parts of grinding calcium carbonate with the grade of C65, 0 to 2 parts of latex, 12 to 17 parts of a biological adhesive and 0 to 0.3 part of a thickening agent; the formula of the medium-coating coating comprises the following components in parts by weight: 100 parts of the grinding calcium carbonate with the grade of C65, 7 to 11 parts of the biological adhesive, 1 to 4 parts of the latex, and 0.1 to 0.5 part of the thickening agent; the formula of the surface-coating coating comprises the following components in parts by weight: 95 to 100 parts of grinding calcium carbonate with the grade of C98, 0 to 5 parts of porcelain clay, 6.5 to 14 parts of the biological adhesive, 1.5 to 4.5 part of the latex and 0 to 0.2 part of the thickening agent. According to environment-friendly coating for the high speed, copper printing paper has biodegradability, has good performance, and meets the requirement of ahigh-speed paper machine.

Description

technical field [0001] The invention relates to the technical field of papermaking coatings, in particular to an environmentally friendly coating for high vehicle speeds. Background technique [0002] The current coated paper coating uses a large proportion of latex to maintain the surface strength of the paper, and has good gloss and printability. If the proportion of latex used is too small, the surface strength of the coated paper will decrease, powder will fall off easily during printing, and the surface of the paper will be pulled up, making it impossible to maintain normal printing requirements. However, latex is not easy to degrade, and using a high proportion of latex in the coating formula of coated paper will bring harm to the environment. If other degradable bio-adhesives are used instead of latex, the strength and runnability of some bio-adhesives often cannot meet the needs of high-speed paper machines at the same time, and more bio-adhesives are used for paper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/14
CPCD21H21/14
Inventor 林彬翁浥程
Owner HAINAN JINHAI PULP & PAPER
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