Vat Red 13,Vat Red 6B

Vat Red 13

Product Name: Vat Red 6B

C.I. Name: Vat Red 13

CAS No.: 4203-77-4

Application: Mainly used for dyeing and printing of cotton fabric, viscose fibers, silk, polyester, viscose, and polyester cotton.

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Vat Red 6B C.I. Vat Red 13 is a high-performance anthraquinone based vat dyes known for its excellent sun and water fastness, as well as its vibrant red color. It is mainly used for cotton and viscose fiber products with extremely high durability requirements, such as outdoor textiles, workwear, and high-end home textiles. Although its dyeing process is relatively complex and involves chemicals, the excellent quality of its final product makes it an irreplaceable choice in the high-end dyeing field.

Vat red 13 brief process of dyeing technology

1. Vatting: Under alkaline conditions (caustic soda), insoluble vat red 13 dye is reduced to a water-soluble Leuco form using a reducing agent (sodium hydrosulfite).

2. Dyeing: Sodium hypochlorite has a good affinity for cellulose fibers and can adsorb and penetrate into the interior of the fibers.

3. Oxidation: After dyeing, the hidden color inside the fiber is re oxidized by exposure to air (oxidation in air) or the use of oxidants (such as hydrogen peroxide), restoring it to its original insoluble color lake and firmly fixing it inside the fiber.

4. Soaping: Finally, soaping treatment is carried out to remove floating colors, making the color of the dye more pure and bright, and further improving the color fastness.

Vat Red 13 Specification

» Product name: Vat Red 6B

» Type: Vat Dyes

» CAS NO.: 4203-77-4

» MF: C32H22N4O2

Vat Red 13 Physical Propertie

Basic Information
Product Name	Vat red 6B
Colour Index	C.I. vat red 13
CAS No.	4203-77-4
Specification
Shade	Similar With Standard
Strength	100%
Appearance	Powder .
Moisture %≤	1.20
Insoluble Matter %≤	0.20
Application	Printing and dyeing cotton