| 摘要 |
<p>PURPOSE:To obtain the subject ink useful for gravure printing, etc., having excellent recording sensitivity and opacity with a slight fogging of base by dissolving or dispersing specific color developer and basic dye in a solvent. CONSTITUTION:(A) Colorless or lightly colored basic dye and (B) 1,1-bis(4- hydroxyphenyl) cyclohexane as a developer developing color of the component A are dissolved or dispersed in (C) a mixed solvent containing 20-100 pts.wt. water to 100 pts.wt. alcohol (e.g. methanol) to afford the aimed ink.</p> |
