Product Cate

Optical Brightening Agent For Textile and Daily Use

Product Name

Optical Brightening Agent 4BK

CAS No.

12768-91-1

C.I. No.

113

Main Chemical Composition

Stilbene bistriazine derivative

Properties

1) With strong fluorescence, excellent whitening effect and slight bluish shade
2) With high light resistance and chemical stability.
3) Good acid resistance, stable in perborate and hydrogen peroxide.

Treating Process

Exhaust process: 0.1-0.8% (o.w.f.), bath ratio: 1:10-30
Temperature 90--100¡ãC¡Á30-40min-wash-dry.
The process can be adjusted according to the actual situation.
One bath process of Scouring hydrogen peroxide bleaching and whitening:
Dosage:0.2-0.8%( o.w.f.)
Stabilizer:1-5g/L
Scouring agent:0.5-1g/L
hydrogen peroxide:5-15/L
NaOH:2-4g/L
bath ratio:1:10-30
Temperature:90--100¡ãC×30-40min wash dry. The processing can be adjusted according to the actual situation.

Package

25kg 50kg per cardboard drum

Technical Index

Appearance:Slight yellow uniform powder
Shade: Slight bluish
Water:<5%
Fineness(120 mesh residue):≤5%

Uses

Mainly be used in whitening of cotton fabric and polyester /cotton blends.T/C whitening in one bath.