C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 5/14 (2006.01) B41J 2/01 (2006.01) B41M 5/00 (2006.01) C07D 401/14 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2592869
Disclosed are an anthrapyridone compound which is expressed as the formula (1) below in the form of a free acid, and a magenta ink composition containing such an anthrapyridone compound. (1) (In the formula, R represents a hydrogen atom, an alkyl group, a hydroxy lower alkyl group, a cyclohexyl group, a mono- or di-alkylaminoalkyl group or a cyano lower alkyl group; X represents a crosslinking group; and Y represents a phenoxy group having one or two carboxyl groups.) The magenta dye and magenta ink composition have a hue with high definition which is suitable for inkjet recording and excellent storage stability, while enabling a recorded matter thereof to have high fastness.
L'invention porte sur un composé d'anthrapyridone de formule (I) sous la forme d'un acide libre, et sur une encre magenta contenant ledit composé. Dans la formule (I) R représente un groupe hydrogène, un groupe alkyle, un groupe hydroxy alkyle inférieur, un groupe mono ou dialkylaminoalkyle ou un groupe cyano alkyle inférieur; X représente un groupe réticulant; et Y représente un groupe phénoxy à un ou deux groupes carboxyle. Le colorant magenta et l'encre magenta présentent une tonalité de haute définition convenant aux jets d'encre, une excellente stabilité au stockage et une grande solidité des impressions.
Kajiura Noriko
Matsumoto Hiroyuki
Nippon Kayaku Kabushiki Kaisha
Ridout & Maybee Llp
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