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Optical Brightener Agent EBF/C.I.185 Powder or liquid

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Optical Brightener Agent EBF/C.I.185  Powder or liquid
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CAS NO: 12224-41-8
Purity: 99%
Density: 1.385/cm3
Melting Point: 216-220℃
Formula: C18H10N2O2S
Application: Used In Polyester And Its Blended Fabrics Brightening, And Appalicable In Both Exhause And Padding Dyeing,
Odor: Free Of Odor
Color Shade: Bluish
High Light:

optical brightener for pvc


optical brightener for polyester

Basic Infomation
Place of Origin: China
Brand Name: Longpu
Certification: SGS,ISO9001
Model Number: OBA EBF
Payment & Shipping Terms
Packaging Details: 25kg fiber drum
Delivery Time: Prompt
Payment Terms: T/T ,L/C
Supply Ability: Prompt
Product Description


Hight whitening of Optical Brightener Agent EBF-185 for dyeing CAS NO12224-41-8



Product Name Optical Brightening Agent EBF
Chemical Name 2.5-bis-(benzoxazol-2-)thiophene
CAS No. 12224-41-8
C.I. No. 185
Structural Formula Optical Brightener Agent EBF/C.I.185  Powder or liquid 0
Molecular Formula C18H10N2O2S
Molecular Weight 318
Technical Index Appearance:Bright-colored light yellowist crystal powder
Melting Point:216~220°C
Uses Used in polyester and its blended fabrics brightening, and appalicable in both exhause and padding dyeing, this product is of high light fastness (grade 7-8), excellent stability against acid, alkali, hard water, peroxide and chlorite bleaching. This item is close to Uvitex EBF(Huntsman).

Exhaust dyeing under high temperature
Dosage: OBA EBF L , 0.1-1.0% o.w.f.
Dispersant: 0.5-1g/l
Acetic acid adjustment
Temperature: 120-130℃;
Time: 20-40min

2, Continuous padding
Dosage: OBA EBF L , 2-10g/l.
Other auxiliaries: xg/l
Temperature: 180-185℃
Dip&squeeze: pick up 60-100%

3,Single-stage optical brightening&resin finishing
Dosage: OBA EBF L 1-10g/l
Silicone softener: 10-40g/l
Resin (melocol): xg/l
Resin catalyzer: xg/;
Baking time: 130℃×1min
Dip&squeeze: pick up 40-60%
Cure time: 160-185℃×2-3min

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