Patent ID: 6331204
Filing Date: 2001-12-18
Classification: B41M,C03C,C08F,C09B,C09D,G02B

Abstract:
An ink comprising(a) one or more cross-linkable polymer precursor(s) selected from cross-linkable forms of:acrylamides, epoxides, epoxy resins, acrylamide/epoxy resin systems, melamine formaldehyde resin condensates, polyesters, alkyd resins, hydroxylated or carboxylated acrylics, hydroxylated acrylic-melamine formaldehyde systems; and(b) one or more dye(s) having at least one substituent capable of forming a covalent bond with a group of at least one of the polymer precursor(s) and where each substituent is attached to the dye either directly or via optionally substituted alkyl or aryl groups; the substituents being selected from: --OH; --NH.sub.2, --NHalkyl; --SH; --COOH, --COOalkyl; epoxy; --COalkenyl; and --NHCOalkenyl;(c) a liquid medium comprising water or an organic liquid or a mixture thereof; and(d) a surfactant.