INKJET INK SETS FOR HIGH SPEED PRINTING

摘要

An inkjet ink set comprising a cyan ink, a magenta ink and a yellow ink, wherein each of said cyan, magenta and yellow ink individually comprises at least 65% water, between 1% and 5% by weight of a dispersed pigment colorant, a surfactant that reduces static surface tension, a dynamic surface tension reducing agent distinct from the surfactant, and at least one humectant distinct from the surfactant and the dynamic surface tension reducing agent; wherein said surfactant, said dynamic surface tension reducing agent and said humectant can be the same or different between said cyan, magenta, and yellow ink; and wherein each of said cyan, magenta, and yellow ink is characterized by exhibiting a specified range for the viscosity normalized dynamic surface tension and for the average viscosity normalized dynamic surface tension for said cyan, magenta, and yellow ink taken together.