High Quality Vat Black 25 Dyes for Textile

Short Description:

1, Brown Black powder，Vat Olive T，Insoluble in water

2，Good dyeing rate and transferability 3,We can adjust the Tones and Quality according to the customer’s requirements.

Product Detail

Product Tags

Product Specification

Name	Vat Black 25
Other Name	Vat Olive T
Cas No.	4393-53-3
Appearance	Brown Black powder
Packing	25kgs Kraft bag/carton box/Iron drum
Strength	100%
Application	Used for dyeing cotton,paper,leather,silk and wool so on.

Description

Vat Black 25 is a Brown Black powder. Insoluble in water,It is mainly used for dyeing cotton fiber with medium evenness and good affinity. It is generally used for dyeing dark gray and mixed colors. It is also used for dyeing silk, wool and polyester cotton fabrics. After neutralization, washing, filtration, grinding, drying finished products.We can adjust the Tones and Quality according to the customer’s requirements.

Product character

It has good dye shifting and evenness,VAT Black 25 has excellent firmness, with different color depth, It is green in concentrated sulfuric acid and produces a black precipitate after dilution. Reddish brown in concentrated nitric acid. In the insurance powder alkaline solution is gray, in the acid solution is dark olive.When it is used for dyeing, it needs to be reduced into water-soluble cryptochroma with insurance powder in alkaline solution, so as to be adsorbed by fibers and then oxidized by air for color development

Main features

A. Strength：100%

B. Brown Black powder，good dye shifting and evenness

C.Excellent light fastness and various combination fastness to light

D. Excellent stability of fabric finishing,Excellent resistance to reduction

E. It is mainly used for dyeing cotton fiber with medium evenness and good affinity. It is generally used for dyeing dark gray and mixed colors. It is also used for dyeing silk, wool and polyester cotton fabrics.

F.When it is used for dyeing, it needs to be reduced into water-soluble cryptochroma with insurance powder in alkaline solution, so as to be adsorbed by fibers and then oxidized by air for color development

Storage & Transportation

The product must be stored in shade, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.