Optical Brightener Ebf-L C. I. 185 Liquid (ZDHC MRSL V3.1) Oba for Polyester Fabrics High Light Fastness

• CAS No.: 12224-41-8
• Formula: C18h10n2o2s
• EINECS: 602-368-3
• Environmental Protection: Yes
• Color: Milk White
• Kind: Fluorescernt Brighening Agent
• Model NO.: OBA185L
• Appearance: Liquid
• Application: Whitening Agent for Polyester
• Transport Package: 25kgs Drum
• Specification: 20%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Optical Brightener EBF-L

CHEMICAL STRUCTURE
Benzoxazol derivatives
PROPERTIES
 

Appearance	Ivory dispersion
Ionicity	Anion
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 (7-8 grade),there are good stability for acid,hard water,
peroxide & chlorite bleaching. The quality is counter of Uvitex EBF (Huntsman).
PROCESS METHOD
1. Exhaustion process under high temperature:
Dosage: EBF-L 0.1-1.0% o.w.f.; Dispersant:0.5-1g/l;Acetic acid
adjustment: PH=4.5-5.5; Temperature: 120-130ºC; Time:20-40min.
2. Continuous padding process:
Dosage: EBF-L 2-10g/l;Other auxiliaries: xg/l; Temperature: 180-185ºC; Time:30 sec;Dip&squeeze: pick up 60-100%.
3. Single-stage optical brightening &resin finishing:
Dosage:EBF-L 1-10g/l; Silicone softener:10-40g/l;Resin: (Melocol: xg/l,resin catalyzer: xg/l); Baking time: 130ºC×1min,
Dip&squeeze: pick up 40-60%; Cure time:160-185ºC× 2-3 min.
Detailed process is according to customer's request.

STORAGE & PACKING
Sealed in storage, keeping date is 12 months under room temperature.
25kg plastic drum or as per customer's request.