Ink composition for ink-jet printing

Abstract

The invention relates to an ink composition for ink-jet printing, which contains 10-35% by weight of at least one selected from polyurethane (methyl) acrylate oligomer and polyester acrylate oligomer, 5-20% by weight of adhesion promoting oligomer, 40-70% by weight of at least one selected form EOEOEA, THFA, IBOA, PHEA, HDDA, DPGDA, TPGDA, HEMA, TMPTA, EO3TMPTA, PO3TMPTA, EO4PETA and DPHA, 0.1-3% by weight of at least one selected from N-(beta-aminoethyl)-alpha-aminopropyltrimethoxysilane, methacrylate propyltrimethoxysilane, styrene chloro diamino silane and 3-glycidyl propyltrimethoxysilane and 2-6% by weight of paint. The ink composition is applicable to applying direct printing on an inorganic matter without being precoated, thereby simplifying the ultraviolet curing and spray printing process carried out on the surface of the inorganic matter, reducing the production cost and improving the production efficiency of inkjet printing.

Description

technical field [0001] The invention relates to an ink composition for inkjet printing, especially an inkjet ink composition for direct printing on the surface of inorganic materials such as glass and ceramics without surface pretreatment or precoating. Background technique [0002] In the inkjet industry, as the requirements for environmental protection become higher and higher, the application of traditional solvent-based inks is increasingly restricted, while the market for inkjet printing using UV-curable inks is gradually increasing. Compared with traditional solvent-based inks, UV-curable inks have greater advantages, and their water resistance and weather resistance are not weaker than solvent inks. At the same time, UV-curable inks have medium adaptability and wide range that solvent inks do not have , for ABS, PVC, PET, PP, PE, acrylic, etc., whether it is a sheet or a coil, it can be printed, and inorganic materials such as metal, ceramics, and glass can also be pr...

AI Technical Summary

Problems solved by technology

However, for large-area glass and ceramic surface spray painting, pre-implementing surface treatment or pre-coating requires a special site, such as a clean spraying workshop, and also requires special processing equipment or spray coating equipment, adding such a The pretreatment process limits the effective application of UV-curable ink to a large extent, and also increases production investment, which increases the overall production cost.

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