Patent ID: 7600864

Claim:
An ink set comprising at least yellow ink (Y), magenta ink (M), cyan ink (C), and red ink (R), wherein the L* values in the Lab calorimetric system specified by CIE for aqueous solutions of each ink diluted 1000 times are within the following ranges: (Y): at least 89 and no more than 94, (C): at least 74 and no more than 87, wherein the L* value for the magenta ink (M) is within a range of at least 76 and less than 83, and the L* value for the red ink (R) is within the range of at least 67.5 and less than 69, and wherein the magenta ink contains 1.7 to 3.0 wt % C.I. Pigment Violet 19, and the red ink contains 2.2 to 2.8 wt % C.I. Pigment Red 177.