optical brightener KSN

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 Molecular Formula C30H22N2O2 Dosage Overlay plastic:0.5-2g/100kg Polyester fiber:10-20g Technical Index Appearance: greenish yellow powder Melting process: 275~280°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