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Optical brightener brightening colors or mask yellowing by optically yield a brighter, fresher appearance. it’s synonym name oba which is also known as fluorescent whitening agent(fwa) or fluorescent brightening agent(fba). typical optical brightener for paper are vbl, bbu, hs, hst. vbl is also known as fluorescent brightener 85.

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 …

China optical brightener agent manufacturersselect 2020 high quality optical brightener agent products in best price from certified chinese chemical additives manufacturers, china brightener suppliers, wholesalers and factory on made-in-china

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.

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