Method of printing sheet-form substrates by the inkjet...

C - Chemistry – Metallurgy – 09 – D

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Details

C09D 11/00 (2006.01) C09B 43/16 (2006.01)

Patent

CA 2427456

The invention relates to a mehtod of pringing sheet-form substrates bz the inkjet printing process, which method comprises printing those materials with an aqueous ink comprising a) at least one dye of formula (I) wherein R1 and R2 are each independently of the other hydrogen or unsubstituted or substituted C1-C4alkyl, R3 and R4 are each independently of the other unsubstituted or subsituted C1-C4alkyl, R5 and R6 are each independently of the other C1- C4alkyl, C1-C4alkoxy, halogen, hydroxy, carboxy, C2-C4alkanoylamino or sulfo, X is halogen, hyrodroxy, C1-C4alkoxy that is unsubstituted or substituted in the alkyl moiety, phenoxy that is unsubstituted or substituted in the phenyl ring, C1-C4alkylthio that is unsubstituted or substituted in the alkyl moiety, phenylthio that is unsubstituted or substituted in teh phenyl ring, amino, N- mono-, or N, N-di-C1-C6alkylamino that is unsubstituted or substituted in the alkyl moiety and uninterrupted or interrupted in the alkyl moiety by oxygen, C5-C7cycloaklylamino that is unsubstituted or substituted inthe cycloalkyl ring, phenyl- ornaphthyl-amino that is unsubstituted or substituted in the aryl moiety, N-C1-C4alkyl-N-phenyl- or N-C1-C4alkyl-N-naphthyl-amino that is unsubstituted or substituted in the aryl moiety, benzylamino that is unsubstituted or substituted inthe phenyl moiety, morpholino or piperidin-1- yl, and n and m are each independently of the other the number 0, 1, 2 or 3; and b) a solubiliser or a humectant.

L'invention porte sur un procédé d'impression de substrats en forme de feuilles selon des processus d'impression à jet d'encre. Ce procédé consiste à imprimer ces matériaux avec une encre aqueuse comprenant a) au moins un colorant de la formule (I) dans laquelle R¿1? et R¿2? représentent chacun, indépendamment, un groupe hydrogène ou C¿1?-C¿4?alkyle substitué ou non substitué, R¿3? et R¿4? représentent chacun, indépendamment, un C¿1?-C¿4?alkyle substitué ou non substitué, R¿5? et R¿6? représentent chacun, indépendamment un C¿1?-C¿4?alkyle, C¿1?-C¿4?alkoxy, halogène, hydroxy, carboxy, C¿2?-C¿4?alcanoylamino ou sulfo, X représente halogène, hydroxy, C¿1?-C¿4?alcoxy qui est non substitué ou substitué dans la fraction alkyle, phénoxy qui est non substitué ou substitué dans le noyau phényle, C¿1?-C¿4?alkylthio qui est non substitué ou substitué dans la fraction alkyle, phénylthio qui est non substitué ou substitué dans le noyau phényle, amino, N-mono-, ou N, N-di-C¿1?-C¿6?alkylamino qui est non substitué ou substitué dans la fraction alkyle et ininterrompu ou interrompu dans la fraction alkyle par oxygène, C¿5?-C¿7?cycloalkylamino qui est non substitué ou substitué dans le noyau cycloalkyle, phényl- ornaphthyl-amino qui est non substitué ou substitué dans la fraction aryle, N-C¿1?-C¿4?alkyl-N-phényl- ou N-C¿1?-C¿4?alkyl-N-naphthyl-amino qui est non substitué ou substitué dans la fraction aryle, benzylamino qui est non substitué ou substitué dans la fraction phényle, morpholino ou piperidin-1-yl, et n et m valent chacun, indépendamment, 0, 1, 2 ou 3; et b) un solubilisant ou un humectant.

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