Name: Rubber Optical Brightener KSN 368 from China
Brand: Raytop Chemical

The Optical Brightener KSN has a similar chemical structure to Optical Brightener OB-1, but it has a better whitening effect on polyester fibers and plastic products than Optical Brightener OB-1, and it has better compatibility with plastics than Optical Brightening agent OB-1, and it is used in a small amount. Can produce very good whitening effect, which is far from fluorescent brightener OB-1.

Optical Brightener KSN.jpg

Product Cate	Optical Brightening Agent For Plastic
Product Name	Optical Brightening Agent KSN
Chemical Name	4.4-bis(5-methyl-2-benzoxoazol)-ethylene
CAS No.	5242-49-9
C.I. No.	368
Structural Formula
Molecular Formula	C30H22N2O2
Properties	1. being highly whiteness with small usage. 2. multipurpose used for whitening of polyester fiber and plastic. 3. having a good compatibility and good fastness to light and sublimation. Can be used for high temperature process.
Treating Process	Overlay plastic:0.5-2g/100kg Polyester fiber:10-20g
Package	20kg cardboard drum
Technical Index	Appearance: greenish yellow powder Melting process: 300~320°C Ash content:≤0.5% Purity:≥99% Volatile content:≤0.5% Fineness(300 mesh):100%
Uses	mainly be used in whitening of polyester, polyamide, polyacrylonitrile fiber, the plastic film and all plastic pressing process. Can suitable for synthesizing high polymer including polymeric process.