A kind of ultraviolet curing ink for gravure printing and preparation method thereof

Abstract

The invention discloses an ultraviolet-curable printing ink for intaglio printing. The ultraviolet-curable printing ink is characterized by being prepared from the following raw materials in parts by weight: 5-6 parts of an organic pigment, 2-3 parts of isophorone diisocyanate, 10-12 parts of dipentaerythritol triacrylate, 6-8 parts of nanosilicon dioxide, 10-12 parts of alkyd resin, 5-8 parts of photoinitiator 184, 3-4 parts of sodium alginate, 4-5 parts of coumarone, 1-2 parts of accelerating agent DM, 1-2 parts of polyethylene glycol terephthalate, 2-3 parts of urea, 1-2 parts of zinc nitrate, 3-4 parts of butyl acrylate, 6-9 parts of dipentaerythritol hexaacrylate, 4-5 parts of an additive and 6-9 parts of 2,4,6-trimethylbenzoyldiphenyl phosphine oxide. The additive improves the tenacity of the printing ink, enables the printing ink to disperse uniformly and maintains the stability of the printing ink. Moreover, the printing ink is high in curing rate, adhesion firmness for plastic substrates and intaglio printing adaptability, generates no pollution to the environment, and is harmless to a human body.

Description

technical field [0001] The invention relates to an ink and a preparation method thereof, in particular to an ultraviolet curable ink for gravure printing and a preparation method thereof. Background technique [0002] As a kind of printing process, gravure printing has the advantages of thick ink layer, bright color, high saturation, high printing plate durability, stable quality of printed products, fast printing speed and other advantages in the field of printing, packaging and graphic publishing. occupy an extremely important position. Gravure printing inks can be divided into three categories according to their composition: solvent-based inks, water-soluble inks and UV-curable inks. Due to the volatilization of organic solvents, traditional solvent-based inks are easy to pollute the environment, cause harm to the human body, and have unsafe factors such as flammability and explosion. Although water-soluble ink does not have the disadvantages of environmental pollution,...

AI Technical Summary

Problems solved by technology

Due to the volatilization of organic solvents, traditional solvent-based inks are easy to pollute the environment, cause harm to the human body, and have unsafe factors such as flammability and explosion.

Although water-soluble inks do not have the unfavorable characteristics of solvent-based inks such as environmental pollution, human injury and high risk caused by solvent volatilization, they also have disadvantages such as not easy to dry, poor adhesion to plastic substrates, etc.