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OBA Fluorescent Brightener Optical Brightener For Plastic 393 OB-1 OB ER-I ER-II

Good quality Fluorescent Brightening Agent for sales
Good quality Fluorescent Brightening Agent for sales
Customer Reviews
The goods arrived quickly in the manner provided. Very professional seller service.We'll purchase again and cooperate with you for long time.

—— Giacomo

Package prepration was really fast and the delivery was even faster. Always liked dealing with Lianda company for optical brightener and pretty satisfied with the service and product.

—— Sohail Al

Very good quality and satisfied with the product! You are a very good supplier in China!

—— Jayson

Very good quality and fast delivery, I like it very much! Thank you for all you did.

—— Timya

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OBA Fluorescent Brightener Optical Brightener For Plastic 393 OB-1 OB ER-I ER-II

China OBA Fluorescent Brightener Optical Brightener For Plastic 393 OB-1 OB ER-I ER-II supplier

Large Image :  OBA Fluorescent Brightener Optical Brightener For Plastic 393 OB-1 OB ER-I ER-II

Product Details:

Place of Origin: China
Brand Name: Lianda
Certification: SGS
Model Number: OB-1

Payment & Shipping Terms:

Minimum Order Quantity: Negotiable
Price: Negotiable
Packaging Details: 25kg/drum
Delivery Time: Within 3 working days upon receipt of payment
Payment Terms: L/C,T/T,D/P,D/A,Western union
Supply Ability: 5000 Tons per year
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Detailed Product Description
CAS No.: 1533-45-5 Other Names: 4,4'-Bis(2-benzoxazolyl)stilbene
MF: C28H18N2O2 EINECS No.: 216-245-3
Type: Direct Dye, Optical Brightener Agent Usage: Ink Dyestuffs, Paint Dyestuffs, Paper Dyestuffs, Plastic Dyestuffs, Textile Dyestuffs
Classification: Chemical Auxiliary Agent Purity: 99.95%
Fineness: 100mesh Application: PLASTIC,PP,PS,ABS

OBA Fluorescent Brightener 393 OB-1 OB ER-I ER-II Optical Brightener For Plastic

Product Description


Product Name

Optical brightener OB-1







Other Name



Bright yellowish green crystal powder


More than 99.95% 

Melting point

300~380 °C






≥ 100 mesh 

Optical brightener Usage

A good whitening agent for polyester-cotton blend fabric or various kinds of plastic and their products under high temperature.

Optical brightener  Package

20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements. 


Optical brightener Properties: 

•     Colors appear more brilliant

•     Environmentally friendly

•     Excellent brightening ability

•     Produce a bluish tinge, masking yellowness

•     Whiter-than-white appearance.


Optical brightener Dosage:

Fluorescent brightener OB-1 is commonly used in the amount of 0.01-0.03%, that is, each 100kg of the materials, the fluorescent brightener OB-1 takes 10g-30g or can be adjusted according to the requirements of the product or test.


Storage: To avoid light, can be stored in cool and dry place for 24 months.



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With the great advantages as below

I. Decades of years production experience

II. Have our own chemical factory only for optical brightener

III. Most reasonable and competitive price, excellent quality and friendly service 

IV. Sample is free of charge

V. Pretty fast delivery

VI. Passed the LFGB, SGS, STC, HSL and some other tests


Contact Details
Changsha Lianda Chemical Co., Ltd.

Contact Person: admin

Tel: +8618570351751

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