Patent ID: 7621992
Filing Date: 2009-11-24
Classification: C09D

Abstract:
1. An ink composition, comprising: a macro-chromophore-containing colorant; a chromophore-mimic additive sharing structural characteristics with the macro-chromophore-containing colorant; and a liquid vehicle, wherein the chromophore-mimic additive is selected from the group consisting of: an aromatic ring compound in which at least one aromatic ring having C6-C20 are fused or connected through carbons and which is represented by one of formulae (13a) through (13h): wherein: R R R q, r, and s are integers of 1 to 10, and Y is O, N, S, or P, and a is an integer of 1 to 10; a C3-C30 alicyclic or ring compound comprising at least one electron conjugation or electron delocalization and is represented by one of the formulae (14a) through (14e): wherein: R R R q, r, and s are integers of 1 to 10, X X Y is O, N, S, or P, I is an integer of 1 to 10, p is an integer of 1 to 9, m is an integer of 1 to 9, and n is an integer of 1 to 6; and a C4-C12 single or multi-aromatic ring compound comprising at least one heteroatom and is represented by one of formulae (15a) through (15d): wherein: R R R q, r, and s are integers of 1 to 10, and X