DIGITAL PRINTING INKS

摘要

The acrylate monomers of the present invention, particularly o-phenyl phenoxyethyl acrylate, provide very fast curing, hard and solvent resistant digital printing inks, and yet are also still surprisingly flexible. These properties make for a technically superior alternative to the widely accepted very hard monomer isobornyl acrylate. O-phenyl phenoxyethylacrylate also has the additional benefit of being free from the strong odor associated with isobornyl acrylate.

主权项

1. A printing ink composition comprising a colorant and a material of polyethylene glycol o-phenyl phenyl ether acrylate of formula (A): wherein, n is 1-3,or a material of formula (I): wherein: R1 is selected from the group consisting of hydrogen, methyl and a hydroxyl group; R2 is either a hydrogen or a methyl group; y is 1 to 6; and Z is selected from the group consisting of formula (II), (III) and (IV): wherein: X is selected from the group consisting of a direct bond, O, CH2, C(CH3)2 and C═O; p is 0 or 1; Q is CH2 or C═O; R3 and R4 are selected from the group consisting of H, phenyl, dimethyl benzyl, C1-C8 alkyl group and C1-C8 alkoxy group, or alternatively R3 and R4 are joined to form a fused ring with the benzene rings to which they are attached; and R5 is —C(O)OR6, wherein R6 is phenyl or C1-C8 alkyl.