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3.especially suitable for high temperature molding of plastic products whitening. recommended dosage. add jinan credit chemicals optical brightener 4bk for textile cotton fabric to every 100kg of material: 1. eva, polypropylene, nylon, polycarbonate and other added in 5 ~ 20g. 2.the amount of polyester fiber added in 10g ~ 40g.

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.

Fba184, fba 184, optical brightner ob manufacturer / supplier in china, offering fluorescent brightening agent fba 184 fba184, chimassorb 81 cas 1843-05-6, ca acetyl acetonate 19372-44-2 and so on. contact supplier company favorites company favorites

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 …

red 48 1 color pigment for ink factory manufacturer with years's encounter, from China.We mainly provide red 48 1 color pigment for ink factory with premium quality and competitive cost.we've got an expert red 48 1 color pigment for ink factory solution designers.Our item is via the national qualified certification.


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