UV flexo ink for gold dust.

摘要

PROBLEM TO BE SOLVED: To provide a gold powder for UV flexo inks which exhibits excellent metallic luster as that used for UV flexo printing and has long-term storage stability even after gold ink preparation.;SOLUTION: The gold powder for UV flexo inks is characterized in that 100 pts.wt. of a flake brass metal powder having an average particle size of 10-30 μm surface-treated with a fatty acid is mixed and coated with 0.2-3 pts.wt. of a silane coupling agent having an epoxy group as an organic functional group.;COPYRIGHT: (C)2012,JPO&INPIT