High-adhesion high-gloss black UV inkjet ink and preparation method and application thereof

Abstract

The invention relates to high-adhesion high-gloss black UV inkjet ink which comprises, by weight, 10-20 parts of black color paste, 10-20 parts of polyurethane acrylate resin, 50-70 parts of reactivediluents, 6-10 parts of photoinitiator and 3-4 parts of auxiliaries. The reactive diluents include, by mass part, a first reactive diluent, a second reactive diluent and a third reactive diluent according to a consumption ratio of 2-3:1-2:2-3; the photoinitiator is at least one of 1-hydroxy-cyclohexylbenzophenone, 2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide and 2, 4, 6-trimethylbenzoyl ethylphenyl phosphoinate; the auxiliaries include defoamer, leveling agent, adhesion accelerant and polymerization retarder. The invention provides a preparation method and application of the high-adhesion high-gloss black UV inkjet ink. The black UV inkjet ink has the advantages of high gloss value, high adhesion and high hardness.

Description

technical field [0001] The invention relates to the field of UV curing materials, in particular to a high-adhesion high-gloss black UV inkjet ink and its preparation method and application. Background technique [0002] Ultraviolet curing (UV) ink refers to the use of ultraviolet light of different wavelengths and energies to polymerize the monomers in the ink binder into polymers under ultraviolet irradiation, so that the ink is dried and formed into a film. The UV inkjet printing system can print any image on tinplate, crystal, glass, acrylic, metal, ceramics, canvas, and UV inkjet printing can also realize personalized on-demand printing, which is used for some carry-on items to highlight users Personality, such as phone case, vanity mirror, lighter, wallet, etc. [0003] At present, the price of black UV inkjet inks produced abroad is generally more expensive, about 300 yuan / kg. Although they have good comprehensive performance, in order to make the surface of the print...

AI Technical Summary

Problems solved by technology

[0004] However, the domestic UV inkjet ink started relatively late, and there are fewer products with good performance, and the comprehensive performance of the products is far behind that of the United States and Japan. In practical applications, the surface of high-end products often needs to have high gloss. At present, high gloss High-end UV inks generally add metal powder, but this will also increase the viscosity of UV inks, which is not conducive to inkjet printing; and the products often have problems such as unstable use, clogged nozzles, short shelf life, and poor adhesion.

In addition, UV inks added with metal powder will also greatly increase heavy metal pollution. At present, reports of heavy metals exceeding the standard in mobile phone cases and other products are not uncommon.

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