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Optical brightener agent (oba) vbl/fluorescent brightener 85 , find complete details about optical brightener agent (oba) vbl/fluorescent brightener 85,optical brightener agent,oba,fluorescent whitener from paper chemicals supplier or manufacturer-shijiazhuang he dye chem co., ltd.

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

The whitening effect of optical brightener agent could be estimated by visual method which better under the sunlight or measure by colorimeter. 3.light fastness there is no international standard for testing optical brightener lightfastness in plastics.most tests used din 54004 for reference.

Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they 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.

wholesale VBL fluorescent brightening agent for polyester in Vietnam exporter from China, we're the most professional supplier from USA with ISO9001 Certification. Also the items have already been certified by mutiple safety certification.We'll offer our wholesale VBL fluorescent brightening agent for polyester in Vietnam priducts in top-quality and most favourable value.


We're an enterprise that export wholesale VBL fluorescent brightening agent for polyester in Vietnam to China, we're authorized by the relevant state registratio. Major wholesale VBL fluorescent brightening agent for polyester in Vietnam and sell to many regions in China, solution readily available upon request. We have the spirit of "customer 1st, honesty first" principle, with a quantity of enterprises established long-term cooperative partnership.

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