Choriway Internatiional Trade Company Limited
www.choriway.com
Product 4BK
CAS 27344-41-8
Fomula C28H20S2O6Na2
Mainly Chemical Composition Stilbene bistriazine derivative
Appearance Slight yellow uniform powder. Fluorescent color is slight bluish. Water: <5% Fineness (120 mesh residue): ≤5%
Application Mainly be used in whitening of cotton fabric and polyester/cotton blends. T/C whitening in one bath.
Property 1. With strong fluorescence, excellent whitening performance and slight bluish shade.
2. With high light stability and chemical stability.
3. Good acid stability, stable in perborate and hydrogen peroxide.
Treating Process Exhaust process:0.1-0.8%(o.w.f.), bath ratio: 1:10-30Temperature 90-100℃*30-40min→wash→dry.The processing can be adjusted according to the actual situation.
One bath process of Scouring hydrogen peroxide bleaching and whitening:
Dosage: hydrogen peroxide:
0.2-0.8%(o.w.f.) 5-15/L
Stabilizer: 1-5g/L NaOH: 2-4g/L
Scouring agent: 0.5-1g/L bath ratio: 1:10-30
Temperature 90-100℃*30-40min→wash→dry.
The processing can be adjusted according to the actual situation.
Package 25kg per cardboard drum