Patent ID: 7066991

Claim:
An ink jet set comprising: A) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye; B) a magenta ink comprising a carrier and an anthrapyridone magenta dye; C) a yellow ink comprising a carrier and an azo-aniline yellow dye or metal complex yellow dye or mixtures thereof; and D) a black ink comprising a trisazo black dye of the following structure where Met is a metal atom; R 1 is a phenyl or naphthalene radical substituted by 1, 2 or 3 substituents selected from the group consisting of OH, O(C1–C6)-alkyl, COOM, SO 3 M and NH 2 ; R 2 is C1–C6-alkyl, n is 0 or 1, X is a chemical bond or —CO— or —SO 2 —; R 3 is H, methyl or O(C1–C6)-alkyl; R 4 and R 5 are each H, COOM or SO 3 M; R 6 is a phenyl, pyridyl or pyrazole radical substituted by 1,2 or 3 substituents selected from the group consisting of OH, O(C1–C6)-alkyl, COOM, SO 3 M, NH 2 , NHaryl, NHacyl and phenylsulfo; and M is ammonium, H, K, Li, or Na.