Ink compositions

An ink jet ink comprised of a vehicle, a sulphonated polyester with acrylic acid groups, methacrylic acid groups, or mixtures thereof, and a colorant, wherein said sulphonated polyester glass transition temperature (Tg) is from about 0.degree. C. to about 70.degree. C.

An ink jet ink composition comprised of an ink vehicle, a resin of a sulfonated polyester, and which polyester is terminated with acrylic acid groups and a colorant, wherein said resin glass transition temperature (Tg) is from about 0.degree. C. to about 70.degree. C.

An ink jet ink composition comprised of an ink vehicle, a resin of a sulfonated polyester, and which polyester is terminated with methacrylic acid groups and a colorant, wherein said resin glass transition temperature (Tg) is from about 0.degree. C. to about 70.degree. C.

An ink jet ink composition consisting essentially of (a) an ink vehicle, (b) a resin of a sulfonated polyester terminated with acrylic or methacrylic acid groups, and (c) colorant, and wherein said resin glass transition temperature (Tg) is from about 0.degree. C. to about 70.degree. C.

An ink jet ink composition consisting essentially of (a) an ink vehicle, (b) a resin of a sulfonated polyester terminated with acrylic or methacrylic acid groups, and (c) colorant, and wherein said resin glass transition temperature (Tg) is from about 0.degree. C. to about 70.degree. C., and wherein said resin weight average molecular weight M.sub.w is from about 2,000 to about 10,000 daltons, and said resin number average molecular weight M.sub.n is from about 1,500 to about 7,000 daltons.