ReactivebrilliantredKE-7B

Chemical Properties

Purple-red uniform powder. Easily soluble in water, with a solubility greater than 150g/L at 50℃.

Uses

Reactive Brilliant Red KE-7B is mainly used for dyeing fibers such as cotton, linen, and viscose, as well as polyester/cotton and polyester/viscose blended fabrics. The color is slightly bright blue.

Preparation

2-Aminonaphthalene-1-sulfonic acidsulfonated, diazotization, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, and 2,4,6-Trichloro-1,3,5-triazine first condensation, its product (2 Moore) and Benzene-1,4-diamine second condensation, and then salting-out.

Properties and Applications

colourful red blue light. Red powder. In the 50 ℃ the solubility of when more than 150 g/L. After dyeing for blu-ray red, copper ions in turn blue turned dark colored (grade 1); Iron ion in color a little to yellow. Compatibility is high, the reaction of the medium, and easy to wash the gender is good. Neutral and alkaline are not suitable for white. Mainly used for cotton, hemp, viscose fiber, cotton and polyester paint / stick blended fabric dyeing.

Standard	Light Fastness	Oxygen bleaching		Persperation Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	4-5	4	4	5(Alkali)	4-5	4-5(95℃)	4-5