Compositions: coating or plastic – Coating or plastic compositions – Marking
Patent
1998-04-20
1999-08-10
Klemanski, Helene
Compositions: coating or plastic
Coating or plastic compositions
Marking
106 3143, 106 3147, 106 3157, 106 3158, 106 3159, C09D 1102
Patent
active
059353090
ABSTRACT:
An ink-jet ink composition for ink-jet printing and a method using the same is disclosed, the ink composition comprising an aqueous liquid vehicle, at least one zwitterionic surfactant; and at least one amphiphilic dye, said at least one amphiphilic dye comprising a plurality of amphiphilic dye molecules, each of said amphiphilic dye molecules consisting essentially of a chromophore and at least one hydrophobic arm attached thereto, said at least amphiphilic dye being present in said ink-jet ink composition in an amount that is at least equal to its critical micelle concentration. The ink compositions of the present invention provide enhanced waterfastness and optical density.
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Bedford Edward T.
Lauw Hiang P.
Moffatt John R.
Hewlett--Packard Company
Klemanski Helene
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