Patent ID: 7669998

Claim:
An ink set comprising at least three black ink compositions, including a first black ink composition having a pigment as colorant, a second black ink composition having a pigment or dye as colorant and a third black ink composition having a dye as colorant, respective concentrations of the colorants in the at least three black ink compositions being such that print formed with the at least three black ink compositions displays (a) less change in gloss than print formed wherein all of the at least three black ink compositions have pigments as colorants in the respective concentrations, and (b) less change in hue than print formed wherein all of the at least three black ink composition have dyes as colorants in the respective concentrations, the pigment of the first black ink composition being present in the highest concentration, the dye of the third black ink composition being present in the lowest concentration and the pigment or dye of the second black ink composition being present in a concentration that is between the highest concentration and the lowest concentration.