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Coating liquid used for surface of environment-friendly rich mineral paper

A technology of environmentally friendly stone paper and coating liquid, applied in the field of coating liquid, can solve the problems of rough surface feel, poor bending performance, lack of gloss, etc., and achieve improved surface feel, increased tearing degree, and increased surface peeling strength Effect

Active Publication Date: 2012-09-19
孔令发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this kind of paper (uncoated paper is also called base paper) has rough surface feel, lack of luster, low strength, poor bending performance, etc., so it is necessary to carry out surface treatment on the base paper to improve its performance and meet the needs of cultural paper and packaging. Different needs for paper and decor paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw materials and weight of the coating liquid used are shown in the following table: The raw material weight unit in the table is grams

[0027]

Embodiment 2

[0029] The specific process steps of the preparation method using the above formula are: taking formula 1 as an example

[0030] 1. Weigh 620 grams of pure water, pour it into a container, and turn on the mixer.

[0031] 2. Add 7 grams of ethylene glycol, and turn on the mixer at 300 rpm until the mixture is evenly mixed.

[0032] 3. Add 3.7 grams of dispersant and keep the speed of the mixer constant until the mixture is evenly mixed.

[0033] 4. Add 1.8 grams of defoamer, keep the speed of the mixer constant until the mixture is evenly mixed.

[0034] 5. Add 3 grams of CMC slowly, keep the speed of the mixer constant, and stir for about 30 minutes.

[0035] 6. Slowly add 16 grams of PVA-S, keep the speed of the mixer constant, and stir for about 10 minutes.

[0036] 7. Adjust the rotation speed to 800 rpm, then slowly add 426 grams of light calcium carbonate and 84 grams of talcum powder, and then stir for 90 minutes.

[0037] 8. Adjust the speed of the mixer to 700 rpm,...

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Abstract

The invention discloses a coating liquid used for the surface of environment-friendly rich mineral paper, which solves the problems of harsh surface handfeel, lack in gloss, low strength, poor bending performance and the like of the paper caused by the existing product. The coating liquid comprises the following components in percentage by weight: 14.8%-17.2% of butadiene styrene rubber latex, 31.0%-36.0% of inorganic mineral powder, 33.5%-42.7% of pure water, 0.4%-0.5% of glycol, 0.22%-0.25% of dispersing agent, 0.11%-0.13% of antifoaming agent, 0.18%-0.21% of thickening agent, 9.7%-11.3% of PVA (poli vinyl alcohol)-S and 0.8%-1.0% of lubricating agent. The invention also provides a preparation method of the coating liquid. The surface handfeel, the flatness, the flexibility and the printing performance of the environment-friendly paper can be observably improved, and the surface strength of the paper is improved.

Description

Technical field: [0001] The present invention relates to a coating liquid, more particularly to a coating liquid for paper. Background technique: [0002] Environmentally friendly paper (stone paper) first appeared in Japan and Germany in the 1960s and 1970s. By the 1980s, the Soviet Union had also successfully developed "stone paper". The earliest "stone paper" produced in my country appeared in Taiwan . It is a kind of ecological paper made of non-wood pulp and non-paper pulp. It uses calcium carbonate, the most abundant mineral resource in the earth's crust, as the main raw material, and uses polymer materials and various inorganic substances as auxiliary materials. It uses the principles of polymer interface chemistry and Filling modification technology, a new type of papermaking with modern technical characteristics and reversible recycling, which is processed by special technology. [0003] However, this kind of paper (uncoated paper is also called base paper) has rou...

Claims

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Application Information

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IPC IPC(8): C09D109/08C09D129/04C09D7/12C08J7/04
Inventor 孔令发
Owner 孔令发
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