optical brightener OB Excellent brightening ability

• CAS No.: 7128-64-5
• Formula: C26H26N2O2S
• EINECS: 230-426-4
• Appearance: Powder
• Usage: optical brightener
• Color: Slight Yellowish powder
• Model NO.: Optical brightener OB
• Transport Package: 10kg, 15kg or 25kg Fiber Drum
• Specification: 98.5%Min
• Trademark: LEPUZ
• Origin: China

Product Description

Lecolor OB

LeColor^® OB
CAS No.: 7128-64-5  C.I. No.: 184
Application/Uses

Coatings Flexible PVC Man-made fibers

Polyethylene Printing Inks

Key Attributes

• Colors appear more brilliant
• Environmentally friendly
• Excellent brightening ability
• Produce a bluish tinge, masking yellowness
• Whiter-than-white appearance

Product Description
LeColor^® OB is a fluorescent whitening agent of the thiophenediyl benzoxazole class. The product is useful in plastics, man-made fibers, printing inks and coatings, flexible PVC and polyethylene. 

• Dosage: 0.01%~0.05%.

Typical Properties

Property	Typical Value
Molecular Formula	C26H26N2O2S
Assay(HPLC)	98.5%Min
Molecular Weight	430g/mole
Appearance	Slight Yellowish powder
Melting Point	200-205°C
Volatiles	<0.5%
Particle Size	Pass 200 mesh

 

packing

 

Packaging and storage:
      Paper and plastic compound bags, 20 or 25kg/bag. It is suggested to be stored in a cool and dry place.

 

Application

 

main products

 

Main products
 

Optical brighteners: OB  OB-1  KCB  FP-127  KSN  MDAC(SWN)  CBS-X

Light stabilizers:     622  770  944  292  783

UV absorbers:          UV-531  UV-9(BP-3)  UV-P  UV-326  UV-327  UV-328  UV-329  UV-571  UV-284(BP-4) 

Antioxidants:          1010  168  BHT  

Slip agents:               Oleamide  Erucamide

Heat stabilizers:         DBM-83  SBM-50  SBM-55  CA ACAC  Zn ACAC

 

our services

 

 

Our Services

We have exact inventory plans to guarantee stable supply.

We have many years' experience of chemical logistics and dangerous chemical managers with specially trained, which ensure the safety and right of chemicals, timely logistics.

Our laboratory takes strictly testing on every lot of goods according to customers' requirement. Meanwhile we has good relationship with the third party company SGS.

After-sales service is the important part in our service. If there are quality problems, we will actively cooperate with the customers and solve the problems early.

We expect to become good partners with our customers for long.





Company Information 




 

 

           

FAQ

 

FAQ

 

Q: Do you have any certificate for quality?

 A: Yes, we have ISO9001:2008 quality system certificate and REACH.

 

Q: Can you customize products?

A: Yes, we can.

 

Q: Can you provide samples for quality checking before placing an order?

A: Samples are avaliable upon request, but the shipping cost should be paid by customer.

 

Q: How to get the price list?

A: Please inqire us by alibaba/email.

 

Q: What's your payment term?

A: TT/LC/DA/DP/Paypal