Patent ID: 6537650
Filing Date: 2003-03-25
Classification: B41M,Y10T

Abstract:
An inkjet receptor medium suitable for imaging with a pigmented ink, comprising:a porous substrate; a pigment management system comprising a multivalent metal salt coating or functionalized particulates in contact with surfaces of pores of the porous substrate; and a migration inhibitor within the porous substrate, wherein the migration inhibitor comprises a copolymer comprising at least two different copolymerized monomers whose homopolymers are hydrophilic, wherein the copolymer is capable of inhibiting migration of a pigmented ink when the receptor medium having a pigmented ink image thereon comes in contact with water, and further wherein the copolymer has a number average molecular weight of about 10,000 to about 300,000 and is sparingly soluble in water.