Raw lacquer ink for digital jet printing and UV curing and preparation method thereof

Abstract

The invention provides raw lacquer ink for digital jet printing and UV curing and a preparation method thereof. The raw lacquer ink is composed of UV-LED ink, urushiol, epoxy resin, an aldehyde compound, an acrylic monomer, a diluent, a catalyst and an auxiliary. The preparation method for the raw lacquer ink comprises the following steps: 1), preparing a urushiol xylene solution; 2), carrying out cross-linking reaction: 3), preparing a urushiol aldehyde polymer; 4), preparing urushiol epoxy resin; 5), preparing urushiol epoxy acrylate; 6), stirring, and dropwise adding ammonia water or a NaOH solution for neutralizing until the pH is 8; 7), preparing a resin ink base mixture; 8), obtaining the UV-curing raw lacquer ink. The raw lacquer ink and the preparation method thereof have the advantages as follows: the problems that raw lacquer and modified raw lacquer cannot be used for jet printing, block a spray head and are long in curing time are solved, the raw lacquer ink can be directly used for printing on the surface of a base material through digital jet printing equipment, instantaneous curing by UV light is realized, and mechanization is realized. Lacquer art colored drawings are changed to be manufactured through the combination of a conventional process and digitization from being manufactured manually only in the prior art.

Description

technical field [0001] The invention relates to a raw lacquer ink for digital jet printing and UV curing and a preparation method thereof, and belongs to multiple technical fields such as digital ink jet printing technology, UV curing technology, raw lacquer and the like. In view of the defect that raw lacquer cannot be used for small-aperture spraying due to its own viscosity, the transformation of lacquer art painting from purely traditional manual production to traditional technology and digital production is realized through the modification of raw lacquer and ink. Background technique [0002] Taking Chinese raw lacquer as an example, the chemical components of raw lacquer are mainly urushiol (60%-70%), urushiol (5%-7%), laccase (<1.0%) and water (20%-30%). Raw lacquer film has excellent properties such as outstanding durability, high decorativeness, antibacterial property, oxidation stability, corrosion resistance and environmental friendliness, and is widely used. ...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes a raw lacquer ink for digital jet printing and UV curing and its preparation method. Its purpose is mainly to overcome that traditional raw lacquer cannot be sprayed out from the nozzle of digital jet printing equipment, it is easy to block the nozzle, and the curing time is long Combined with the preparation process of UV ink, the modified raw lacquer and UV ink manufacturing technology are combined to prepare a new type of "raw lacquer ink" that can be digitally printed without clogging the nozzle, and can be cured by UV. "Raw lacquer ink" combines the excellent performance of both lacquer and UV inks, realizes the interdisciplinary combination and innovation in the field of lacquer finishing and digital printing technology, and meets the needs of modern industrial production