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 Thermal ink jet composition

Details
Inventors: Gundlach, Kurt B.; Colt, Richard L.;
Assignee: Xerox Corporation (Stamford, CT)
Primary Examiner: Klemanski; Helene
Assistant Examiner:
Attorney, Agent or Firm: Oliff & Berridge

A thermal ink jet printing composition contains a betaine zwitterionic base and a quasisurfactant penetrant.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Inks of the present invention comprise a dye colorant.
Generally, any effective dye, such as one of the direct dyes or the acid dyes, may be selected, provided that the dye is compatible with the other ink components and is soluble in the liquid medium.
Examples of suitable dyes include Bernacid Red 2BMN; Pontamine Brilliant Bond Blue A; BASF X-34; Pontamine; Food Black 2; Carodirect Turquoise FBL Supra Conc.
(Direct Blue 199), available from Carolina Color and Chemical; Special Fast Turquoise 8GL Liquid (Direct Blue 86), available from Mobay Chemical; Intrabond Liquid Turquoise GLL (Direct Blue 86), available from Crompton and Knowles; Cibracron Brilliant Red 38-A (Reactive Red 4), available from Aldrich Chemical; Drimarene Brilliant Red X-2B (Reactive Red 56), available from Pylam, Inc.
; Levafix Brilliant Red E-4B, available from Mobay Chemical; Levafix Brilliant Red E(6BA, available from Mobay Chemical; Procion Red H8B (Reactive Red 31), available from ICI America; Pylam Certified D&C Red #28 (Acid Red 92), available from Pylam; Direct Brill Pink B Ground Crude, available from Crompton & Knowles; Cartasol Yellow GTF Presscake, available from Sandoz, Inc.
; Tartrazine Extra Conc.
(FD&C Yellow #5, Acid Yellow 23), available from Sandoz; Carodirect Yellow RL (Direct Yellow 86), available from Carolina Color and Chemical; Cartasol Yellow GFT Liquid Special 110, available from Sandoz, Inc.
; D&C Yellow #10 (Acid Yellow 3), available from Tricon; Yellow Shade 16948, available from Tricon, Basacid Black X34, available from BASF, Carta Black 2GT, available from Sandoz, Inc.
; Neozapon Red 492 (BASF); Orasol Red G (Ciba-Geigy); Direct Brilliant Pink B (Crompton-Knolls); Aizen Spilon Red C-BH (Hodagaya Chemical Company); Kayanol Red 3BL (Nippon Kayaku Company); Levanol Brilliant Red 3BW (Mobay Chemical Company); Levaderm Lemon Yellow (Mobay Chemical Company); Spirit Fast Yellow 3G; Aizen Spilon Yellow C-GNH (Hodagaya Chemical Company); Sirius Supra Yellow GD 167; Cartasol Brilliant Yellow 4GF (Sandoz); Pergasol Yellow CGP (Ciba-Geigy); Orasol Black RL (CibaGeigy); Orasol Black RLP (Ciba-Geigy); Savinyl Black RLS (Sandoz); Dermacarbon 2GT (Sandoz); Pyrazol Black BG (ICI); Morfast Black Conc A (Morton-Thiokol); Diazol Black RN Quad (ICI); Orasol Blue GN (Ciba-Geigy); Savinyl Blue GLS (Sandoz); Luxol Blue MBSN (Morton-Thiokol); Severon Blue 5GMF (ICI); Basacid Blue 750 (BASF); and the like



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