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Alibaba offers 142 optical brightener agent vbl products. such as free samples, paid samples.

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 brighteners, optical brightening agents (obas), fluorescent brightening agents (fbas), or fluorescent whitening agents (fwas), are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) by fluorescence.these additives are often used to enhance …

Alibaba offers 3,009 solvent base ink pigment products. about 46% of these are printing inks, 19% are pigment. a wide variety of solvent base ink pigment options are available to you, such as water based ink, titanium, and iron oxide.

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