Factory direct supply plastic fluorescent brighteners OB (CI184) Chemical increase tide Hangzhou source ..

Appearance: light yellow or milky white powder Melting point: 198-200 ℃ Purity: ≥99.00% volatile matter: ≤0.2% CAS: 7128-64-5 transmittance: 450nm≥96% 500nm≥97% Packaging Storage: 20,25kg cardboard pail, stored in a cool place. Whitening 3 Usage of this product can be used in thermoplastics, polyvinyl chloride, polystyrene, polyethylene, polypropylene, ABS, acetate fibers, paints, coatings, printing paint, etc., brighteners OB for each machining stage whitening polymer can be processed given bright blue and white luster. 4 Use the brightener OB equivalent to 0.01 to 0.05% by weight of the plastic, and a variety of plastic ion fully mixed molding can be carried out.