Patent ID: 6383275
Filing Date: 2002-05-07
Classification: C09D

Abstract:
An ink jet ink composition suitable for high resolution ink jet printing, comprising water, a colorant, and a water-soluble or an ink-compatible anti-intercolor bleed agent of the formula:{[(R)m]n}s(A)(X)pâ€ƒâ€ƒ(I) whereina) R is a C1 to about C10 lower alkyl group; b) A is an acid functional group selected from the group consisting of sulfonic acid (â€”SO3âˆ’), carboxylic acid (â€”CO2âˆ’), and phosphonic acid (â€”HPO3âˆ’, â€”PO3âˆ’2) functional groups; c) X is a cation selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, Ag+, Fr+, Ca++, Mg++, Zn++, Ba++, Fe++, Sr++, Cd++, Cu++, Co++ Sn++, or an ammonium group of the general formula â€ƒwherein R1, R2, R3, and R4 are independently hydrogen, lower alkyl group, or lower hydroxyalkyl groups when A is an acid functional group; and d) m is a number in the range of about 1 to about 10, n is 1 or 2, p is 1 or 2, and s is 1 or 2.