Top White LEBF (Optical Brightener Agent)

CHEMICAL STRUCTURE

Benzoxazol derivatives

PROPERTIES

APPEARANCE Ivory dispersion
IONICITY No-ionic
DYEING SHADE Slightly bluish

APPLICATION

It's used for Optical Brightening Agent on polyester and its blends, and suitable for both
exhaustion and padding, have excellent light fastness (5-6 grade),there are good stability
for acid,hard water,peroxide & chlorite bleaching.

PROCESS METHOD

1. Exhaustion process under high temperature:
Dosage: Top White LEBF 0.1-1.0% o.w.f.; Dispersant:0.5-1g/l;Acetic acid
adjustment: PH=4.5-5.5; Temperature: 120-130°C; Time:20-40min.

2. Continuous padding process:
Dosage: Top White LEBF 2-10g/l;Other auxiliaries: xg/l; Temperature:
180-185°C; Time:30 sec;Dip&squeeze: pick up 60-100%.

3. Single-stage optical brightening &resin finishing:
Dosage: Top White LEBF 1-10g/l; Silicone softener:10-40g/l;Resin:
(Melamine: xg/l,resin catalyzer: xg/l); Baking time: 130°C×1min,
Dip&squeeze: pick up 40-60%; Cure time:160-185°C× 2-3 min.
Detailed process is according to customer's request.

STORAGE & PACKING

Sealed in storage, keeping date is 6 months under room temperature.
25kg plastic drum or as per customer's request.

For more details, please contact us at tdpctw@gmail.com

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