Optical Brightener-1

Main Ingredient: diphenylethene

Specification:

Appearance: light yellow powder
Colored light: bright violet
Ionicity: anionic
fluorescence intensity: similar with the standard
Water(%): ≤5.0

Properties
1. Excellent fluorescent whiting effect to obtain higher degree of whiteness and more bright color shade.
2. Not sensitive to light, with stable chemical properties.
3. Resistant to alkali, hydrogen peroxide and perborate, suitable for alkaline oxygen bath and padding process.
4. Excellent washing fastness.

Applications:
Mainly used for brightening of cotton, linen, viscose, polyamides and blended fabrics.

Recommended dosage:

1. dipping exhaustion method
Dosage: 0.1-0.8%(o.w.f) bath ratio: 1:10-30
Temperature X time:95-100℃×30-40min, washing, drying
(anhydrous sodium sulfate or salt 10-20g/L can be added based on situation)

2. Scouring, oxygen bleaching, brightening, one bath method. dosage: 0.2%-0.8%(o.w.f)
hydrogen peroxide(30%): 5-15g/L
scouring agent: 3-5g/L 
bath ratio: 1:10-30
Temperature and Time: 95-100℃×30-40min, washing, drying.

Packing and Storage:
50kg/drum  Keep in a cool, dry and dark place. Shelf time: 6 months.