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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.

A wide variety of optical brightener cxt options are available to you, such as coating auxiliary agents, ink dyestuffs, and paper dyestuffs. you can also choose from carbon black, adsorbent, and basic dye optical brightener cxt there are 141 suppliers who sells optical brightener cxt on alibaba, mainly located in asia.

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.

We claim: 1. a non-fluorescent ink composition for a writing instrument comprising a non-fluorescent pigment pre-dispersed in an alkyd resin, a high boiling point hydrocarbon solvent, and at least one stabilizer selected from the group consisting of antioxidants and anti-skinning agents, wherein the stabilizer of the ink composition prevents the alkyd resin from polymerizing, and the ink …

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