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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 …

Whitening agents / optical brighteners are additives that impart brightness to polymers and intensify the degree of whiteness. these agents function on the basis of the ‘fluorescence effect’; they absorb light in the uv spectrum and emit light in the blue region of the visible spectrum to yield a brighter and fresher appearance to the plastic.

Molecular formula:c 18 h 15 cln 2 o 6 s molecular weight: 422.84 cas registry number:7023-61-2 manufacturing methods :2-amino-4-chloro-5-methylbenzenesulfonic acid diazotization, and 3-hydroxy-2-naphthoic acid coupling, and then into calcium salt. properties and applications:brilliant red, shallow blue light pink.purple red powder. insoluble in water and ethanol.

Oba speciality chemicals is a leading fluorescent whitening agent, fluorescent whitening agent manufacturers, fluorescent whitening agent exporters & fluorescent whitening agent suppliers in ahmedabad, gujarat, india.

excellent quality ER I optical brightener agent for paint exporter from China, we are essentially the most specialist supplier from USA with ISO9001 Certification. Also the merchandise happen to be certified by mutiple safety certification.We'll offer you our excellent quality ER I optical brightener agent for paint priducts in top-quality and most favourable value.


Qualified excellent quality ER I optical brightener agent for paint solutions of China supplier for international and nearby trade business enterprise.Getting the very best items of our factory,our excellent quality ER I optical brightener agent for paint products series have been tested and won us specialist authority certifications. For much more parameters and solution list information,please click the button to obtain additional information.

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