C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 17/00 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2569846
Disclosed is an aqueous dispersion of a water-insoluble coloring material which is excellent in shelf life stability and suitable for an inkjet ink. Also disclosed is an ink composition excellent in shelf life stability and discharge properties. Further disclosed are an inkjet recording method and recorded matter using such an ink composition. The aqueous dispersion is characterized by containing a water-insoluble coloring material, water, an anionic dispersing agent, an alkylene oxide addition product of phytosterols and/or an alkylene oxide addition product of cholestanols, and the ink composition is characterized by further containing an organic solvent in addition to the above-described components of the aqueous dispersion.
La dispersion aqueuse d~un matériau colorant insoluble dans l~eau, ici présentée, a une excellente stabilité de durée de conservation et est adaptée à une écriture à jet d~encre. La composition de l~encre présentée est aussi excellente en stabilité de durée de conservation et possède d~excellentes propriétés de déversement. De plus, sont présentées une méthode d~écriture à jet d~encre et une matière enregistrée utilisant ladite composition d~encre. La dispersion aqueuse se caractérise par sa composition : un matériau colorant insoluble dans l~eau, de l~eau, un agent dispersant anionique, un produit d~addition d~oxyde d~alkylène de phytostérols et/ ou produit d~addition d~oxyde d~alkylène de cholestanols. De plus, la composition de l~encre se caractérise car elle contient un solvant organique en plus des composants de la dispersion aqueuse décrits ci-dessus.
Akatani Yoshiki
Dejima Yoshiyuki
Fujii Katsunori
Suzuki Yuji
Tabe Tadahiko
Nippon Kayaku Kabushiki Kaisha
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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