Invention Grant

Method of printing
Abstract:
A method of printing includes a. providing a substrate, a reaction liquid including a coagulation agent and an ink set including a first ink composition including a first colorant and a second ink composition including a second colorant, different from the first colorant, wherein both the first colorant and the second colorant are dispersed as primary particles in the first ink composition and the second ink composition, respectively; b. applying the reaction liquid to a first surface of the substrate; c. printing a first layer of the first ink composition and a second ink layer of the second ink composition on the first surface of the substrate, wherein upon contact with the coagulation agent, the primary particles present in the first ink layer and in the second ink layer agglomerate such that secondary particles are formed in the first ink layer and in the second ink layer respectively, wherein the first ink layer obtains a first opacity and the second ink layer obtains a second opacity, wherein the ink layer obtaining the highest opacity is printed first. With such a method, the color gamut of an ink set including inks having a high light-fastness can be significantly improved. Printed matter, printed with the method is also disclosed.
Public/Granted literature
Information query
Patent Agency Ranking
0/0