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Direct Red 31 Manufacturers in India

Direct Red 31 Dyes | CAS 5001-72-9

Colorants Chem Pvt Ltd one of the leading manufacturers and exporters of high quality Direct Red 31 Dyes in India to an industry wise customer base to meet International Industry standards.

Direct Red 31 Dyes is a water soluble dye that have an affinity for fiber and are taken up directly, such as the benzidine derivative. Direct Dyes are usually cheap and easily applied and they can yield bright colours. Direct Dye Red 31 has CAS number 5001-72-9 having Molecular Weight 713.

The commercial names of Direct Red 31 Dyes are Direct Pink 12B, Direct Peach Red 12B, Direct Fast Pink, Direct Pink 5B. The physical appearance of Direct Red 31 is Red powder.

Application of Direct Red 31 Dyes | C.I. 29100

● Direct Red 31 is mainly used in viscose, such as cotton, silk, polyamide fiber cellulose fiber and viscose/silk blended fabric dyeing, can be used for pulp shading.

Properties of Direct Red 31 Dyes

● Direct Red 31 Dyes appearance is generally reddish brown uniform powder. Dissolve in water is magenta, slightly soluble in alcohol is red orange, soluble in cellosolve, insoluble in other organic solvents. In the sulfuric acid, the orange turns reddish brown, and after dilution there is a dark blue red precipitate. In concentrated nitric acid its brown and precipitates.

Technical Data Sheet

Product Name : Direct Red 31

CAS No. : 5001-72-9

Packing : 25Kg Drum/Bag/Box

Sr. No. Test Specification
01 Type of Dye Direct Dyes
02 Chemical Class Disazo
03 C.I. Number 29100
04 Physical Appearance Red Powder
05 Hue Bright Bluish Red
06 Solubility Soluble in water
07 Light Fastness 2
08 Washing Fastness 1 - 2
09 Application Leather, Paper
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