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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.

Pigment red 144 trade name is fast red br and cas number is 5280-78-4,pigment red 144 mainly used in plastic, rubber, paint and ink color.

Optical brightening agent cxt is packed per 25kg in cardboard box or drum after being packed in plastic bag first. we have rich experiences in exporting and importing. we have good cooperation with world wide express like dhl, ups etc and also shipping line to ensure the samples and goods can be reach to the cutomers at soonest speed. 4.

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 …

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