C.I. Sulphur Yellow 3 (8CI,9CI)

Preparation

72 copies of 1-(3-Amino-4-methylphenyl)-2-thiourea, 72 copies of 4-(4-Aminophenyl)benzenamine and 600 a mixture of sulfur in the 200 ~ 210 ℃ calcination 10 hours, and its product with Sodium hydroxide solution in 10 ℃ processing, and acid precipitation (BIOS.gur 1155-37).

Properties and Applications

dark red light yellow.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
						Moderate	Severe
ISO	4-5	5	3-4	4		4
AATCC			3			5