Reactive Blue BF Reactive Blue 222 fabric cotton dyes china factory manufacturer

Reactive Blue 222

Application

Dark blue powder. It is easily soluble in water, and its solubility in water is 80g/L (50℃). Reactive dark blue M-BE is used for the dyeing of cotton and viscose fibers, and is suitable for exhaust dyeing and pad dyeing. Good high temperature stability. It is also used for dyeing polyester-cotton, polyester-viscose blended fabrics, as well as hemp and silk. The color fastness is excellent.

Producing Method

Take amino C acid, H acid, 2,4-diaminobenzene sulfonic acid, m-(β-sulfate ethyl sulfone) aniline and cyanuric chloride as raw materials. Firstly, 2,4-diaminobenzenesulfonic acid and cyanuric chloride are condensed for the first time, and then they are nitridated in Chemicalbook and coupled with H acid. Then, the amino C acid is diazotized, and the amino C acid is diazotized for the first time with H acid. The second coupling, and finally the addition of meta (β-sulfate ethyl sulfone) aniline for the second condensation to obtain the product. The finished product is obtained by salting out, filtering and drying.

Characteristic

- Application range: used for cotton, viscose and other fiber dyeing

- Type: Iso-bifunctional reactive group

- Recommended dyeing temperature: 60 ℃

- Navy blue. Suitable for exhaust dyeing and pad dyeing. Good washing and light fastness.

Often combined with Yellow 3RFN and Red 3BFN to be used as three-primary colors. Good for discharging.