optical brightener OB-1 CAS:1533-45-5 Colors appear more brilliant

• CAS No.: 1533-45-5
• Formula: C28H18N2O2
• EINECS: 216-245-3
• Certification: REACH
• Environmental Protection: Yes
• Color: greenish yellow
• Model NO.: Optical brightener OB
• Kind: optical brightener OB-1
• Appearance: Powder
• quality: Polyester
• Transport Package: 10kg, 15kg or 25kg Fiber Drum
• Specification: 98.5% or customized
• Trademark: LEPUZ
• Origin: China

Product Description

Lecolor OB-1

 

CAS No.: 1533-45-5  C.I. No.: 393
1.Application/Uses

Rigid PVC Man-made fibers Engineering plastics

Polyester  ABS, EVA, PS, PC 393 Recycled polymers

2.Key Attributes

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

3.Product Description
LeColor^® OB-1 significantly improve the whiteness in both textile fibers and plastics. In polyester and nylon fibers, LeColor^® OB-1 impart a pleasing whiter-than-white appearance and give more intensity to some colors as well. Because of its excellent brightening ability, good thermal stability, and compatibility with many polymers, LeColor^® OB-1 is an effective brightener for many plastics. LeColor^® OB-1 provides an excellent white, permanent color since the brightener is dissolved in the polymer or fiber during polymer manufacture. This permanence gives much better brightness retention over time versus other methods such as bleaching or surface treatment with optical brighteners. Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. The emitted blue light will reduce the yellow color of a polymer and provide the whiter-than-white appearance.
Typical Properties

Property	Typical Value
Appearance	Yellow greenish powder
Specific Gravity @ 20ºC/20ºC	1.39
Melting Point	355-360ºC
Assay	98.5 wt % min
Particle Size	Pass 200 mesh

4. 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