UV convex ink composition and preparation method and flow thereof

The embossed ink has fast drying speed, strong adhesion, high surface hardness, strong three-dimensional embossing effect, good hand feeling, and the maximum thickness can reach the millimeter level. It is a special ink that replaces the traditional embossing stamping process and has anti-counterfeiting function. The embossed ink is suitable for use on a variety of paper, PVC and gold and silver cardboard. The embossed ink has a different visual experience than the traditional printing effect. This special printing effect makes the products exquisite and gorgeous, unique and visually strong, enhancing the artistry, decoration and value-adding ability of the products. It is increasingly valued in screen printing and combination printing, and is widely used in the field of packaging and decoration printing. However, the poor flexibility of UV embossed ink is one of the most prominent problems. It is easy to crack in the process of folding and cutting of printed matter, and the poor toughness of embossed ink itself is the main cause of this problem.

 

 

 

The object of the invention is to obtain a UV embossing ink which is safe, environmentally friendly, stable in performance, good in adhesion and laser-flashing, and solves the problem that cracking easily occurs in the process of folding and cutting of printed matter.

The invention is achieved by the following technical solutions:

In a first aspect, the present invention provides a UV emboss ink composition comprising the following components in weight percent: As a preferred embodiment, the epoxy acrylate resin is selected from the group consisting of bisphenol A acrylates, phenolic rings One or more of an oxygen resin, glycerin epoxy acrylate, alicyclic epoxy acrylate, urethane acrylate; the bisphenol A type acrylate has a number average molecular weight of 3100 to 7000, and a phenolic epoxy resin The number average molecular weight is 2,500 to 12,000, the number average molecular weight of the glycerol epoxy acrylate is 4,000 to 30,000, the number average molecular weight of the alicyclic epoxy acrylate is 4,500 to 40,000, and the functionality of the urethane acrylate is 2 to 3, and the number average The molecular weight is from 2000 to 12,000.