The yellow type dispersed dye blend which possesses high resistance optical fastness

摘要

This invention 25 - 80 weight % the below-mentioned structural formula [the yellow type pigment which is shown with 1] and 75 - 20 weight % the below-mentioned structural formula [regards the dye blend which contains the yellow type pigment which is shown with 2] vis-a-vis all the pigment amounts. Conversion 1 [In R formula C₁ - C₄ hydroxy alkyl groups are displayed.]