Amphiphilic dyes

Details Amphiphilic dyes Amphiphilic dyes

1996-10-31

1998-07-28

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

057857458

ABSTRACT:
Color bleed is alleviated between ink-jet inks by employing amphiphilic dyes. Amphiphilic dyes comprise a reactive dye covalently bonded to a hydrophobe. The amphiphilic dye, together with an aqueous liquid vehicle, form an ink-jet ink that evidences reduced color bleed and an improvement in overall print quality deriving from the micellization of the amphiphilic dye molecules. The reactive dye typically comprises any of the reactive dyes commonly employed in ink-jet printing, and the aqueous liquid vehicle typically comprises at least one organic solvent and water. The hydrophobe may be any compound compatible with the components in an ink-jet ink composition and may be an ionic amphiphile or a pH-sensitive or insensitive zwitterionic and non-ionic amphiphile.

REFERENCES:
patent: 4664708 (1987-05-01), Allen
patent: 4836851 (1989-06-01), Pawlowski et al.
patent: 5102459 (1992-04-01), Ritter et al.
patent: 5116409 (1992-05-01), Moffatt
patent: 5145518 (1992-09-01), Winnik et al.
patent: 5342439 (1994-08-01), Lauw
patent: 5534052 (1996-07-01), Mennicke et al.

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