Antibacterial durable aqueous polyurethane printing ink

Abstract

The invention relates to the field of printing ink, and in particular to an antibacterial durable aqueous polyurethane printing ink. The printing ink is composed of the following raw materials by weight: 4-5 parts of methylated-beta-cyclodextrin, 0.1-0.2 part of calcium propionate, 1-3 parts of tea polyphenols, 6-8 parts of binary vinyl chloride-acetate, 2-4 parts of cellulose ether, 4-7 parts of magnesium aluminum silicate, 30-50 parts of deionized water, 15-18 parts of an aqueous pigment, 2-3 parts of pentaerythritol, 20-25 parts of a waterborne polyurethane emulsion and 2-4 parts of an auxiliary. The printing ink of the invention has low toxic volatile organic compound content, and little harm to environment and human body; methylated-bet-cyclodextrin, calcium propionate and tea polyphenols can improve the dispersion and compatibility with resin of the aqueous pigment, but also endow the pigment with certain antibacterial and mildewproof effect, improve the durability of the color. The final product has strong adhesive ability even ink color, and clear and beautiful appurtenance on a substrate, does not easily mold or fall off, and has high safety and wide scope of application.

Description

technical field [0001] The invention relates to the field of printing inks, in particular to an antibacterial and durable water-based polyurethane printing ink. Background technique [0002] Printing ink is a common coloring material for printed products. It is mainly composed of pigments, binders, fillers and other components. It is a kind of colored paste-like adhesive with a certain degree of fluidity. In order to obtain a satisfactory printing effect, there are certain requirements for the color, printing adaptability, and drying speed of the ink during actual use. At the same time, it must have the characteristics of water resistance, light resistance, acid and alkali resistance, low toxicity and environmental protection according to the use environment. In the future, the development direction of printing inks must be towards the direction of low toxicity, fast drying, natural and diverse colors, and multi-functionality. Ink with better performance has disadvantages s...

AI Technical Summary

Problems solved by technology

In order to obtain a satisfactory printing effect, there are certain requirements for the color, printing adaptability, and drying speed of the ink during actual use. At the same time, it must have the characteristics of water resistance, light resistance, acid and alkali resistance, low toxicity and environmental protection according to the use environment. In the future, the development direction of printing inks must be towards the direction of low toxicity, fast drying, natural and diverse colors, and multi-functionality. Ink with better performance has disadvantages such as high price. Therefore, it is necessary to improve the formula and process of printing ink and accelerate the transformation of the industry to achieve an efficient and environmentally friendly production mode.