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Whitening agent for cotton: optical brightener mst: c.i.353 (liquid) 52301-70-9: mainly used as whitening of cotton and linen, silk, polyamide fiber, wool and paper. optical brightener 4bk : whitening agent for cotton fabric. (6) oba used in wool: optical brightener nfw: c.i.351 (liquid) 27344-41-8: used in wool, nylon, silk, polyamide and ...

Masterbatch is mainly available in the form of standard pellets but also in the form of mini-pellets. a distinction is made between white, black and colored masterbatch depending on the pigment type. the premix, split-feed and color-matching processes are available for compounding masterbatch.

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 …

China solvent dye (solvent red 149) for plastic, find details about china ink, fluorescent pigment from solvent dye (solvent red 149) for plastic…

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