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Shinest ob-1 features excellent resistance to heat, exceptional whitening properties, good light fastness and low volatility. it can be used for whitening thermoplastic plastics, pvc, pa, ps, pe, pp, abs, pet, eva, acetate fiber,paints, coatings, printing ink etc. it …

Optical brightening agent 31# cas:12224-06-5 manufacturer, fluorescent brightener vbl supplier, optical brightening agent 31# producer from china, offering highest quality optical brightening agent vbl to global customers

(1) fluorescent brightenening agent vbl is a typical representative of bis(triazinylamino)stilbene derivative. (2) it can be soluble in 80 times soft water and shows anion character and the ph value resistant to acid and alkali is 6-11 and the expected ph value of dyeing bath is 8-9.

Optical brightening agent er-iii cas no. 13001-40-6 chemical name: 1,4'-bis(2-cyanostyryl) benzole specifications appearance slight yellow greenish powder melting point 288-201 ℃ purity ≥99% moisture content ≤0.5 application optical brightener 199 is used to the whitening process of dacron, acetic fiber, polyamide fiber, blends of terylene-cotton etc.

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