Aqueous acid-and-alkali-resistant digital imaging coating

Abstract

The invention discloses an aqueous acid-and-alkali-resistant digital imaging coating. The aqueous acid-and-alkali-resistant digital imaging coating comprises 10-20wt% of water, 20-22wt% of an elastic emulsion, 20-25wt% of a fluorocarbon emulsion, 0.8-1.6wt% of a wetting agent, 0.7-0.9wt% of a dispersant, 3-5wt% of titanium dioxide, 7-9wt% of nanometer silica, 6-8wt% of an opaque polymer, 16-18wt% of light calcium carbonate, 0.05-0.7wt% of an antifoaming agent, 0.05-0.1wt% of a film forming assistant and 1-3% of a cationic color fixing agent. A film obtained through using the coating has the advantages of good ink fixing performance, good water resistance, unlikely color change and dye penetration, strong acid and alkali resistances, low softness, good elasticity, and suitable smoothness and glossiness.

Description

technical field [0001] The invention relates to a digital image coating, which is specially used for coating the surface of digital photo paper, color spray paper, etc., and belongs to the field of fine chemical industry. Background technique [0002] With the rapid growth of sales of digital cameras and camera phones, the rapid popularization of computers, and the increasing use of color inkjet printers, the demand for high-quality digital photo paper and color inkjet paper is increasing, and there are many such papers on the market. It is mainly imported, and the price is high, while domestic production is relatively small, and the quality is average, especially the research on low-cost, high-quality digital photo paper coating formulations is less, adding anti-alkali and acid-resistant ingredients on the basis of water resistance , Improve the life durability of digital imaging coatings. Contents of the invention [0003] The purpose of the present invention is to prov...

AI Technical Summary

Problems solved by technology

[0002] With the rapid growth of sales of digital cameras and camera phones, the rapid popularization of computers, and the increasing use of color inkjet printers, the demand for high-quality digital photo paper and color inkjet paper is increasing, and there are many such papers on the market. It is mainly imported, and the price is high, while domestic production is relatively small, and the quality is average, especially the research on low-cost, high-quality digital photo paper coating formulations is less, adding anti-alkali and acid-resistant ingredients on the basis of water resistance , improve the life durability of digital imaging coatings