Patent ID: 8808949
Filing Date: 2014-08-19
Classification: C09B,G02B,G03F,H01L

Abstract:
1. A dye dispersion liquid comprising a dye (A), a dispersant (B) and a solvent (C), the dye (A) being dispersed in the solvent (C) by the dispersant (B), wherein the dye (A) is a dye having a sulfonic acid group; the dispersant (B) is a block polymer that contains a block portion comprising a repeating unit having a tertiary amine represented by the following formula (I) and a block portion comprising a repeating unit represented by the following formula (III); the solvent (C) is a solvent having a solubility of the dye (A) of 0.2 (g/100 g solvent) or less at 23° C.; and a micelle is formed by an acid-base interaction between the tertiary amine of the dispersant (B) and the sulfonic acid group of the dye (A); wherein in the formula (I), R in the formula (III), R