Abstract: Inks for ink jet printers containing an aqueous carrier medium; a pigment; a polymeric dispersant; and an emulsion polymer additive stabilized with a structured polymer are stable, have low viscosity, exhibit excellent print quality, provide excellent smear resistance after drying, have good decap and crusting time, and also demonstrate good charging stability when used in continuous flow printers.

Abstract: Soft thermoplastic segmented copolyester elastomers consisting essentially of a multiplicity of recurring short chain ester units and long chain ester units joined through ester linkages, said short chain ester units amounting to about 15 to less than 30 percent by weight of said copolyester and being derived from a mixture of aromatic dicarboxylic acids such as a mixture of terephthalic acid and isophthalic acid containing about 55 to 95 percent by weight of terephthalic acid, and butanediol, and said long chain ester units amounting to more than 70 to 85 percent by weight of said copolyester and being derived from a mixture of aromatic dicarboxylic acids such as a mixture of terephthalic acid and isophthalic acid containing about 55 to 95 percent by weight of terephthalic acid, and polytetramethylene ether glycol having an average molecular weight of about 1500 to 3500, said copolyester having a melt index of less than about 30 and a melting point of about 90.degree. to 130.degree.C.