DISPERSE YELLOW 23

Preparation

4-(Phenyldiazenyl)benzenamine diazo, coupled with phenol.

Properties and Applications

Red light yellow. Brown yellow powder. Soluble in acetone and DMF. The strong sulfuric acid for purple, dilute precipitation after brown; In 10% of sodium hydroxide solution for orange. Dyeing meet iron ion colored light without change; Meet copper ions to turn green. Mainly used for polyester and its blending fabric, vinegar, polyamide fiber dyeing and printing, also can be used for plastic color, good levelness. This product is suitable for the sublimation fastness demand is not high dyeing products. In the melt method to dye in dyeing, with light color advisable, avoid and high-temperature type dye spell color, prevent to produce color. Poor hot melt dyeing to a 180-190 ℃ advisable. Dyeing finished product is not suitable for high temperature pressing finishing. Dyeing finished product is not suitable for high temperature pressing finishing