Printing ink and printing method for plastic packaging bags

Abstract

The invention discloses a printing ink and a printing method for plastic packaging bags. The printing method comprises the steps: mixing peach gum and Arabic gum matched food-grade nanometer titaniumdioxide and food-stage calcium carbonate to prepare a mixture A; adding carboxymethyl cellulose to a solution of the mixture A to carry out ultrasonic treatment to obtain a mixture B; then, mixing anddispersing water-soluble acrylic resin and the like to obtain a mixture C; and mixing the mixture B and the mixture C, adding a food-grade pigment and the like for color modulation to obtain emulsified and homogenized printing ink, and filling an ink cartridge with the printing ink for conventional plastic bag printing. The printing ink for the plastic bag, prepared by mixing a peach gum and Arabic gum hydrolysate and other food-stage materials, is bright in color, strong in adhesive force, uniform in inking, not easy to fade and capable of effectively ensuring that damage cannot happen during storage, transportation and shelf life.

Description

technical field [0001] The invention belongs to the technical field of packaging bag processing, and in particular relates to a printing ink and a printing method for a plastic packaging bag. Background technique [0002] Plastic packaging bag is a kind of packaging bag that uses plastic as raw material to produce various supplies in daily life, and is widely used in daily life and industrial production. Commonly used plastic packaging bags are mostly made of polyethylene film, which is non-toxic, so it can be used to hold food. There are thousands of plastic packaging bag manufacturers across the country, with an annual consumption of more than 100,000 tons. Most of the plastic packaging bag products are mainly used for color sealing tape. The process requires pre-preparing color powder in the glue coating process. On the one hand, dust affects the environment and the health of operators; on the other hand, because the color powder is mainly organic dyes, the use of the pr...

AI Technical Summary

Problems solved by technology

There are thousands of plastic packaging bag manufacturers across the country, with an annual consumption of more than 100,000 tons. Most of the plastic packaging bag products are mainly used for color sealing tape. The process requires pre-preparing color powder in the glue coating process. On the one hand, the dust affects the environment and the health of the operator; on the other hand, because the color powder is mainly organic dyes, the use of the product has defects in temperature resistance, which limits its scope of use