Factory direct plastic fluorescent brighteners KSN (C.I.368)

Fluorescent Brightener KSN KSN Fluorescent Brightener OB-1 and has a similar chemical structure, but the polyester fibers and plastics 1 OB-whitening effect better than, and compatibility with plastics OB-1 is more than Well, very little amount can produce very good whitening effect, which is far less than the OB-1. 1, physical and chemical information density: 1.261g / cm3 Boiling point: 578.9 ° C at 760 mmHg Appearance: yellow-green powder. Type of construction: stilbene bis-benzimidazole-type compounds. Melting point: ≥300 ° C. CAS: 5242-49-9 Solubility: insoluble in water, soluble in benzene trichloride high-boiling organic solvents. It uses only 2 KSN excellent high temperature performance, and also has excellent resistance to sunlight and weather resistance. Fluorescent Brightener KSN is also applicable to polyamides, polyacrylonitrile polymer fibers whitening; can also be used for films, injection molding and extrusion molding materials added at any stage of processing KSN synthetic polymers have a very good whitening effect. 3 Use fluorescent brighteners KSN plastic or equivalent to 0.01 to 0.05% by weight of polyester pellets, before all kinds of plastic molding or former polyester fiber drawing, and materials mix evenly. 4 Packaging storage 20kg, 25kg cardboard drum, stored in a cool, dry place.