Anthrapyridone compound, water-based magenta ink composition...

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 67/22 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2383143

Anthrapyridonedisulfonic acid of formula (1) or salts thereof; aqueous magenta ink compositions containing the acid or the salts; and an ink-jet recording method by using the same. The above compounds are excellent in water solubility, and the aqueous magenta ink compositions have good storage stability. Further, the ink-jet recording method can give records exhibiting highly reproducible, vivid hues and high resistances to light and water.

Cette invention concerne un acide sulfonique d'anthrapiridone de formule (1) ou des sels de cet acide; des compositions aqueuses d'encre magenta renfermant cet acide ou ces sels; et un procédé d'impression à par jet d'encre au moyen de ces composés. Les composés susmentionnés présentent une remarquable solubilité dans l'eau. Les compositions aqueuses d'encre magenta possèdent une bonne stabilité au stockage. Enfin, le procédé d'impression à jet d'encre permet d'obtenir des tirages aux teintes vives très reproductibles offrant une grande résistance à la lumière et à l'eau.

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