High Performance Direct Red 31 Manufacturer Direct Pink 12b Factory Dyes

• CAS No.: 5001-72-9
• Formula: C32h21n5na2o8s2
• Colour: Red
• Appearance: Powder
• Usage: Paper, Leather, Textile, Cotton, Silk
• Application Material: Cotton, Silk
• Model NO.: DIRECT RED JDC-RED031
• Content: 100%
• Transport Package: 25kgs Carton Box
• Trademark: JADECHEM
• Origin: China
• HS Code: 3204140000
• Production Capacity: 10000mt/Year

Product Description

Product: Direct Red 31, Direct Pink 12B, keep on supplying high performance direct dyes around 20 years with guarantee of Quality and Credit 

Red brown powder. Soluble in water for product red solution, the solubility of 45 g/L (80 ºC), also can dissolve in fiber element solution, slightly soluble in alcohol for red orange, insoluble in other organic solvents. The strong sulfuric acid in orange to red light for brown, diluted dark blue light red precipitate generated; In nitric acid solution for orange brown, precipitation. The dye solution to generate strong hydrochloric acid purplish red precipitate; Add thick sodium hydroxide solution for orange brown. Copper ions in dyeing dim light; Iron ion in micro have change. Mainly used in viscose, such as cotton, silk, polyamide fiber cellulose fiber and viscose/silk blended fabric dyeing, can be used for pulp shading.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	3-4	4	2	1-2		1-2
AATCC	3-4	4	1	1		1-2