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| Place of Origin: | CHINA |
| Brand Name: | Bangchem |
| Minimum Order Quantity: | 1kg |
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| CI: | 191 | Cas No: | 12270-53-0 |
|---|---|---|---|
| Purity: | 20% | Usage: | Textile Auxiliary Agent For Nylon |
| Color Shade: | Reddish |
OPTICAL BRIGHTENER 191
CHEMICAL STRUCTURE
Hydrazine sulfonate derivatives
PROPERTIES
| Appearance | Yellow liquid |
| Ionicity | Anion |
| Dyeing shade | Netural |
APPLICATION
It's suitable for Optical Brightening Agent for nylon and cotton. Its high light fastness is over 5 grade. It's for exhaustion and padding process. The quality is counter of Blankophor CLE (Bayer).
PROCESS METHOD
1. Exhaustion process for nylon:
A. Na2SO4 bath:
Dosage: optical brightener 191 0.5-1.5% o.w.f; Detergent: 0.5-1.0 g/l;
Na2SO4:2-3g/l; Acetic acid adjusted PH=4-6; Temperature: 80-130℃;
Time:20-30min;
B. Sodium Chorite bath:
Dosage: optical brightener 191 0.5-1.5% o.w.f; Detergent: 0.5-1.0 g/l;
NaNO3:2-3 g/l; Sodium chlorite:3-8g/l;Complexing agent: 0.5-1.0g/l;
Temperature: 90℃; Time:30-40min;
2. Padding process for nylon:
Dosage: Optical brightener 191 8-30 g/l;Levelling agent: 1-2 g/l; Fixing agent:
5-10 g/l;Temperature: 20-60℃; Dip&squeeze: pick up 80-100%,
baking under 105℃.
3. Dyething method for cotton:
Dosage: H2O2 50% or 35% g/l, stabilizer 1g/l, NAOH 98% 0.6g/l,
Bath rate: 20.
Detailed process is according to customer's request.
STORAGE & PACKING
Sealed in storage, keeping date is 12 months under room temperature.
60kg plastic drum or as per customer's request.
