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3.especially suitable for high temperature molding of plastic products whitening. recommended dosage. add jinan credit chemicals optical brightener 4bk for textile cotton fabric to every 100kg of material: 1. eva, polypropylene, nylon, polycarbonate and other added in 5 ~ 20g. 2.the amount of polyester fiber added in 10g ~ 40g.

Optical brightening agent ob-1 ob1 fluorescent brightener 393 / fba 393 cas 1533-45-5 for plastic/ plastic whitening agent us $10.00$28.00 / kilogram

(ba,oba,vbl,cxt) fluorescent brightener , find complete details about (ba,oba,vbl,cxt) fluorescent brightener,fluorescent brightener cbs-l from coating auxiliary agents supplier or manufacturer-henan tianfu chemical co., ltd.

These whitening agents absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic. optical brighteners are used in engineering plastics like thermoplastic polyurethanes, polyvinylchlorides (pvc), styrene homo- and copolymers and polyolefins among others.

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