Patent ID: 8420713

Claim:
A capsulated colorant comprising: a colorant; and a polymer resin coated on the colorant, wherein the polymer resin is a result of polymerization of a polymerizable composition comprising a basic monomer having a positive charge and a polymerizable unsaturated monomer, wherein the polymerizable unsaturated monomer is at least one compound selected from the group consisting of pentadiene, acrylic acid, crotonic acid, fumaric acid, itaconic acid monoethyl ester, fumaric acid monobutyl ester, maleic acid monobutyl ester, methacrylonitrile, methacrylamide, itaconamide and maleic monoamide, wherein the basic monomer having a positive charge is vinyl-N-methylpyridinium chloride, and wherein the basic monomer having a positive charge is present in an amount of about 10 to about 50 parts by weight based on 100 parts by weight of the polymerizable unsaturated monomer.