Patent ID: 6511535
Filing Date: 2003-01-28
Classification: D06P

Abstract:
A process for printing fibrous textile materials using the ink-jet printing technique, wherein the fibrous materials are printed with an aqueous ink that comprisesa) at least one acid dye selected from the group consisting of: disazo dyes of formula symmetrical 1:2 chromium complex dyes of the azo dyes of formula â€ƒwherein R84 is hydrogen, C1-C4alkoxycarbonylamino, benzoylamino, C1-C4alkylsulfonylamino, phenylsulfonylamino, methylphenylsulfonylamino or halogen, R85 is hydrogen or halogen and R86 is C1-C4alkylsulfonyl, C1-C4alkylaminosulfonyl, phenylazo, sulfo or â€”SO2NH2, the hydroxy group in the benzo ring D10 being bound in the o-position relative to the azo group on the benzo ring D10, copper complex dyes of formula â€ƒwherein the benzo rings D20 are substituted by sulfo or by sulfonamido, metal-free anionic anthraquinone dyes of formula â€ƒwherein (R96)1-5 denotes from 1 to 5 identical or different substituents selected from the group consisting of C1-C4alkyl which is unsubstituted or substituted by C2-C4alkanoylamino which is optionally substituted in the alkyl group by halogen; benzoylamino; C1-C4alkoxy; C2-C4alkanoylamino and C2-C4hydroxyalkylsul and disazo dyes of formulae â€ƒwherein A20 and A21 are radicals of formula â€ƒwherein R107 is hydroxy or amino and R108 and R109 are each independently of the other hydrogen or halogen, and and b) 5 to 20% by weight of &egr;-caprolactam, based on the total weight of the ink; and that has a viscosity of from 1 to 40 mPaÂ·s at 25Â° C.