C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 29/36 (2006.01) B41J 2/01 (2006.01) C09D 11/02 (2006.01)
Patent
CA 2616942
A coloring composition for image formation comprising an azo dye having an aromatic nitrogen-containing 6-membered heterocyclic ring as a coupling component,a coloring composition which comprises an azo compound having an oxidation potential nobler than 1. 0 V vs . SCE and comprising at least two substituents having a pKa value of -10 to 5 in water, and a method for improving ozone resistance of a color image, the method comprising using a compound having an oxidation potential nobler than 1.0 V vs. SCE and showing a maximum absorption at a wavelength between 500 nm and 580 nm with a half-value width of 150 nm or narrower.
Fujiwara Toshiki
Hanaki Naoyuki
Omatsu Tadashi
Tanaka Shigeaki
Yabuki Yoshiharu
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Fuji Photo Film Co. Ltd.
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