- Other Car Care Equipment[1]
- Chemical Auxiliary Agent[3]
- Daily Chemicals[2]
- Oxide[7]
- Other Chemicals[1]
- Paint & Coating[10]
- Pigment[10]
- Copper Powder[5]
- Mica[2]
- Printing Inks[10]
- Reflective Material[5]
Optical Brightening Agent OBA
Optical Brightening Agent 4BK, OBA
1)With strong fluorescence
2) With high light stability and chemical stability
Optical Brightening Agent 4BK
Optical whitening agent
Main Chemical Composition:Stilbene bistriazine derivative
Specification:Appearance: Slight yellow uniform powder
Fluorescent Color: Slight bluish
Water: < 5%
Fineness( 120 mesh residue):≤5%
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.
Application:Mainly be used in whitening of cotton fabric and polyester /cotton blends. T/C whitening in one bath.
Treating Process:
Exhaust process: 0.1-0.8% (o.w.f.), bath ratio: 1:10-30
Temperature 90--100°C×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: 0.2—0.8%( o.w.f.) hydrogen peroxide: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°C×30-40min→wash→dry.
The processing can be adjusted according to the actual situation.
Packing:25kg per cardboard drum