Optical Brightener Dbl for Nylon and Cotton

• Customization: Available
• Color: Yellow
• Kind: Optical Brightener
• Model NO.: DBL
• Application: Post-Processing Auxiliary
• Ionicity: Anion
• Dyeing Shade: Neutral
• Transport Package: 25kg/Barrel
• Specification: 98%
• Trademark: DEBORN
• Origin: China
• HS Code: 320420

Product Description

CHEMICAL STUCRTURE
Hydrazine sulfonate derivatives
 
PROPERTIES

Appearance	Yellow liquid
Ionicity	Anion
Dyeing shade	Neutral

 
APPLICATION
It's suitable for Optical Brightening Agent for nylon and cotton. Its high light fastness is around 5 grades. It's for exhaustion and padding process.

PROCESS METHOD
1. Exhaustion process for nylon:
A. Na₂SO₄ bath:
Dosage: DBL 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: 80-130ºC;
Time:20-30min;
B. Sodium Chorite bath:
Dosage: DBL 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: 90ºC; Time:30-40min;
2. Padding process for nylon:
Dosage: DBL 8-30 g/l;Levelling agent: 1-2 g/l; Fixing agent:
5-10 g/l;Temperature: 20-60ºC; Dip&squeeze: pick up 80-100%,
baking under 105ºC.
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.
25kg plastic drums or as per customer's request.