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Optical brightening agent / optical brightener 4bk c.i. 113: optical brightener 4bk c.i. 113: c.i. 113: cas 12768-92-2: structure: stilbene bistriazine derivative: moisture: 5%max: appearance: slight yellow uniform powder: shade:slight bluish: strength: 100±3%: fineness(120 meshes residue): 5%max: application: mainly be used in whitening of ...

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.

Applications of optical brightening agent er-i. fluorescent brightener 199 (optical brightening agent er-i) is very suitable for whitening and brightening polyester fiber and has good whitening effect on plastics such as pe, pp and pvc and their process of shaping with polyester chips or recovered polyester chips. in addition, the refined ...

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.

Offering most effective good quality competitive price 135 fluorescent brightening agent for masterbatch in Vietnam items,we are experienced manufacturer in China.Wining the majority of the crucial certifications of its market,our competitive price 135 fluorescent brightening agent for masterbatch in Vietnam products are best sellers from the nearby and international market place. Should you require a lot more information about our factory and item list,please click the button bellow to check for it.


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