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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 ...

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.

Dcash master hair bleaching powder lightener kit : white 15g 50 milliliters white 2 new from $14.99. pillpack by amazon pharmacy. your medication, delivered learn more > customers who viewed this item also viewed. page 1 of 1 start over page 1 of 1 .

Optical brighteners are added during the thermoplastic molding process, rather than added in liquid form afterward, that’s the word “mass-whitening” come from. generally, obas were mixed with powder or granules plastic for flexible pvc, obas were added in …

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China ER I optical brightener for white masterbatch exporter from China, we're essentially the most qualified supplier from USA with ISO9001 Certification. Also the solutions have already been certified by mutiple safety certification.We'll offer you our China ER I optical brightener for white masterbatch priducts in top-quality and most favourable value.

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