Farbstoffzusammensetzungen und Tinten für das Tintenstrahldruckverfahren

Dye compositions and aqueous inks derived therefrom, especially suitable for use in ink jet printing in which the dye composition contains (a) one or more dyes which, in the free acid form, are of Formula (1): wherein W is H or COOH; X is H or COOH; Y is H or COOH; U & Z are each independently H...

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Bibliographische Detailangaben
Hauptverfasser: GREGORY, PETER, BOLTON BL3 4UN, GB, PRESGRAVE, JOHN EDWARD, TODMORDEN, WEST YORKSHIRE 0L14 8HP, GB, KENYON, RONALD WYNFORD, FAILSWORTH MANCHESTER M35 0GW, GB
Format: Patent
Sprache:ger
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Zusammenfassung:Dye compositions and aqueous inks derived therefrom, especially suitable for use in ink jet printing in which the dye composition contains (a) one or more dyes which, in the free acid form, are of Formula (1): wherein W is H or COOH; X is H or COOH; Y is H or COOH; U & Z are each independently H, COOH or SO3H; and V is H or SO3H; and (b) one or both dyes which in the free acid form is of Formula (2): wherein A is NH2 and B is OH; or A is OH and B is NH2. lly