Synthetic resin for water-soluble printing ink and preparation method thereof

Abstract

The invention belongs to the field of synthetic resin and provides synthetic resin for water-soluble printing ink. The synthetic resin is prepared from 15-21 parts of turpentine oil, 15-45 parts of butyl acrylate, 7-15 parts of methyl methacrylate or styrene, 20-35 parts of vinyl acetate and 6-12 parts of active functional group monomer. A preparation method comprises the following steps of: reacting the turpentine oil under the effect of a mixed catalyst of benzyl chloride and aluminum chloride to obtain a terpene prepolymer; making the terpene prepolymer into an emulsion; adding butyl acrylate, methyl methacrylate, vinyl acetate and part of the active functional group monomer into the terpene prepolymer emulsion; adding part of an initiator and the remaining monomer mixture at 60-80 DEG C, and reacting for 10-20 minutes; adding the remaining initiator and heating to 90-95 DEG C for reaction; and cooling to obtain the synthetic resin for water-soluble printing ink.

Description

technical field [0001] The invention belongs to the field of synthetic resins, in particular to a synthetic resin for water-soluble ink and a preparation method thereof. Background technique [0002] Plastic gravure printing ink is a coloring material for plastic packaging printing. It is a liquid substance processed by grinding and other processes. The performance of the resin determines the type of ink solvent and determines the ink. Printability, pigment dispersibility, adhesion fastness, etc. For a long time, my country's plastic gravure ink is mainly composed of benzene and other organic soluble synthetic resins. The ink contains a large amount of benzene and other organic solvents, so the manufacturing of ink , In the process of use, there is volatilization pollution of benzene solvent and other organic solvents, which is harmful to the health of producers and consumers. What is more serious is that benzene and other organic solvents remaining on the packaging bags poll...

AI Technical Summary

Problems solved by technology

[0002] Plastic gravure printing ink is a coloring material for plastic packaging printing. It is a liquid substance processed by grinding and other processes. The performance of the resin determines the type of ink solvent and determines the ink. Printability, pigment dispersibility, adhesion fastness, etc. For a long time, my country's plastic gravure ink is mainly composed of benzene and other organic soluble synthetic resins. The ink contains a large amount of benzene and other organic solvents, so the manufacturing of ink , There are volatilization pollution of benzene solvent and other organic solvents in the process of use, which endangers the health of producers and consumers

What's more serious is that the benzene and other organic solvents left on the packaging bags pollute articles and food, and are very harmful to people's lives and health.

In recent years, although water-based plastic gravure inks and other types of inks have appeared in the market, there are problems such as high prices, poor wetting and dispersibility of pigments, slow drying, and poor adhesion fastness, which have affected the popularization and use of such products.