Novel anthrapyridone compounds, water-based magenta ink...

C - Chemistry – Metallurgy – 09 – B

Patent

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Details

C09B 5/14 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C09B 62/06 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2325484

The present invention provides novel anthrapyridone compounds or salts thereof which have a magenta hue and vividness suitable for ink-jet recording and give the recorded material having a high fastness in light fastness and water fastness. That is, the present invention relates to an anthrapyridone compound represented by Formula A-B or the salt thereof, wherein A is the dyestuff residue represented by Formula (1) (see formula 1) (in the formula, R1 is hydrogen atom or an alkoxycarbonyl group and R2 is hydrogen atom or methyl group); and B is hydrogen atom or a substituent group on the dyestuff residue A, a water-based magenta ink composition which includes the said compound and an ink-jet recording method which uses the said compound.

La présente invention concerne de nouveaux composés d'anthrapyridone ou les sels de ces derniers qui présentent une teinte magenta adaptée à l'impression par jet d'encre et à la brillance et qui produisent des images imprimées ayant une grande résistance à la lumière et à l'eau. Les composés sont représentés par la formule A-B [dans laquelle A représente un résidu de colorant représenté par la formule (1) (où R1 représente hydrogène, alcoxycarbonyle, ou benzoyle et R2 représente hydrogène ou méthyle); et B représente hydrogène ou un substituant situé sur le résidu de colorant]. La composition d'encre à base aqueuse contient n'importe lequel des composés et de leurs sels. Dans le procédé d'impression par jet d'encre on utilise cette même composition.

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