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Typical optical brightener for textiles is er-i, er-ii, 4bk. er-i is also known as fluorescent brightener 199. it’s used in whitening and brightening polyester fiber. er-ii is also known as fluorescent brightener 199:1, used to whitening polyester, polyester/cotton, polyester/yarn, polyester/linen, and other blended fabrics. both cas number is 13001-39-3 and could be in …

Optical brightener whitening agent fluorescent vbl paper optical brightener paper making optical brightener whitening agent fluorescent brightener vbl. us $3.00-$5.00 / kilogram ... manufacturers supply fluorescent whitening agent kcb brightener 367 (cas:5089-22-5)[einecs:225-803-5]

A wide variety of optical brightener manufacturer options are available to you, such as plastic auxiliary agents, coating auxiliary agents, and leather auxiliary agents. there are 612 optical brightener manufacturer suppliers, mainly located in asia.

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.

We attach value to innovation, especially with patents of China on BA optical whitening agent for paper distributor, its superb technology has reached the international sophisticated level, and has a high reputation within the BA optical whitening agent for paper distributor industry. Our group not only has excellent researchers and business nationwide sales and service network, but additionally are China shoppers specified brand companies.


Our company primarily engaged and export BA optical whitening agent for paper distributor. we depend on sturdy technical force and constantly create sophisticated technology to meet the demand of BA optical whitening agent for paper distributor customers. We're sincerely welcome close friends from different circles at dwelling and abroad come to cooperate!

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