Patent ID: 8552090
Filing Date: 2013-10-08
Classification: C09D,Y10T

Abstract:
1. An ink set comprising a non-white color ink composition and a white ink composition, the white ink composition comprising: (a) at least one white colorant selected from the group consisting of a metal compound and hollow resin particles, and (b) a resin that fixes the at least one white colorant, the resin comprising a polyurethane resin having a glass transition temperature of 0 degrees C. or less, wherein when the non-white color ink composition and the white ink composition are printed on a recording medium at a resolution of 720×720 dpi to form printed material in a 100% duty solid pattern and the printed material is held at a temperature of 27° C. and a humidity of 65% for 24 hours, a decrease in L* value of color ink at a portion of the printed material comprising white and color print is less than 10.