Optical brightener for PVC

Optical brightener for PVC is one of the most widely used plastics today. PVC (polyvinyl chloride) is hard and brittle without plasticizers. Optical brightener widely used in flexible PVC, man-made fibres and plastics. Various additives make it possible to vary the elasticity of the thermoplastic material. 

Not only the hardness of the plastic PVC can be easily changed, it also dyes well. Therefore, there is basically no PVC application in which optical brighteners cannot be used.We also find optical brighteners in almost all areas, where plastisols are used.

Optical brightener OB
CAS No.:7128-64-5
MF:C26H26N2O2S
Purity:≥99%
Place of Origin:Shandong, China
Usage:Coating Auxiliary Agents, Paper Chemicals, Plastic Auxiliary Agents, Rubber Auxiliary Agents, Textile Auxiliary Agents, Fluorescent brightener ob powder
Brand Name:Raytop
Chemical Name: 2,5-Thiophenediylbis(5-tert-butyl-1,3-benzoxazole)
Molecular Formula: C26H26N2O2S
Appearance:Light Yellow Powder
Ash:0.5%
Volatile matter:≤0.2%
Light transmittance:450nm≥96% 500nm≥97%
Type:White pigment
Packaging & Delivery
Packaging Details:25kg/drum
Port:Qingdao
Lead Time :Quantity(Kilograms) 1 - 10000 >10000
Est. Time(days) per need

Optical Brightener OB-1
Appearance bright yellow crystalline powder 
Composition Diphenyl vinyl bisbenzoxazole
CAS No. 1533-45-5
Purity ≥99%
Features: 1. High whitening intensity and strong fluorescence.  
2. It is widely used in polyester, nylon fiber and various plastics whitening.  
3. It has excellent high temperature resistance.
Application: 1. Suitable for whitening polyester fiber, nylon fiber, polypropylene fiber and so on.  
2. Suitable for whitening and brightening of polypropylene plastics, hard PVC, ABS, EVA, polystyrene, polycarbon
Using method Recommended dosage: every 1000kg materials to add OB-1 brightener:
1, EVA, polypropylene, nylon, polycarbonate, etc. in the amount of 75, 200 g.
2. The adding amount of polyester fiber is 75g and 300
Packing & Storage: 25KG fiber drums with PE liner or carton box. Keep in dry place away from light.

Optical Brighteners have wide application performance, widely used in whitening of chemical fibers such as polyester and various plastics. Especially the whitening of soft PVC products.

Optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. Optical brighteners agents find uses in engineering plastics like thermoplastic polyurethanes, polyvinylchlorides (PVC), styrene homo- and copolymers and polyolefins among others.