Product Name: Fluorescent Whitening Agent KSN
C.I. No.: FBA 368
Physical Form: bright yellow crystalline powder
Melting Point(℃): >295°C
Solubility:Insoluble in water,but soluble in high boiling point organic solvents such as phenyl-chloride.
Structure:a compound of diphenylethylene bisbenzoxazole type .
FWA KSN's chemical structure is similar to FWA OB-1's but has much better whitening effects than OB-1 on polyester fibres and plastics,its compatibility with plastics is better than OB-1's too,highly whitening effects is available with only small dosage,KSN has a good resistance to high temperature as well as excellent resistance to light and weather.Applied to whiten polyester,polyamide and polycarylonitrile fibres,used in film,plastic pressing & injection process too.Suitable for whitening high polymers and could be added at any point during synthesizing
Directions for use and dosage:
The dosage should be 0.01-0.05% on weight of plastic or polyester granules.Mix the materials thoroughly before shaping of the plastic products or drawing-spinning of polyester fibers.