Patent ID: 9061537
Filing Date: 2015-06-23
Classification: B41N,C08G

Abstract:
1. A blanket for a printing roller comprising: a base film; a buffer portion on a backside of the base film; and a printing mold on an entire surface of the base film including methylic resin such that the printing mold has adhesivity to a surface thereof and printing grooves for filling by a printing liquid, wherein a surface of the printing mold has a polarity the same as printing liquid supplied to the printing mold, wherein the printing mold consists of: 75˜85% of main substance, wherein the main substance is a pre-polymer consisting of polydimethylsiloxane having a terminal substituted with a vinyl group, 5˜15% of supplementary substance to be coupled with the main substance, wherein the supplementary substance is PDMS (Polydimethylsiloxane) which is a curing agent having a terminal thereof substituted with a hydrogen, 0.5˜1% of catalyst for enhancing reaction when the main substance couples to the supplementary substance; and more than 5% and 10% or less of the methylic resin, wherein the methylic resin is methylic resin of a siloxane group having the chemical formula where n is a number that makes the methylic resin have a molecular weight of 1K to 8K, for increasing an amount of the methyl group on a surface of the printing mold, and wherein the methyl group of the chemical formula is introduced into side chains and both ends of the siloxane group.