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Brightener brightening agent fabric brightening agent manufacturer optical brightener 4bk optical brightening agent 4bk whitening agent for cotton fabric us $3.00$3.50 / kilogram

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 …

The whitening effect of optical brightener agent could be estimated by visual method which better under the sunlight or measure by colorimeter. 3.light fastness there is no international standard for testing optical brightener lightfastness in plastics.most tests used din 54004 for reference.

Vigoro ecoborder 4 ft. easy to install no diggingflexible and sturdy rubber landscape edging in grey (6-pack) installation hardware included. 4.6 out of 5 stars 5. $86.36 $ 86. 36. ... red. 4.5 out of 5 stars 351. $39.99 $ 39. 99. get it as soon as mon, nov 16. free shipping by amazon. ... from $48.75. emsco group 2032hd bedrocks trim-free gray ...

KSN optical whitening agent for EVA manufacturer Supplier having a higher company reputation,from China.Our solutions include:KSN optical whitening agent for EVA manufacturer Solutions are primarily exported to European nations,it is actually well-known in lots of countries.


We attach value to innovation, particularly with patents of China on KSN optical whitening agent for EVA manufacturer, its superb technology has reached the international advanced level, and has a high reputation in the KSN optical whitening agent for EVA manufacturer business. Our group not merely has excellent researchers and business nationwide sales and service network, but in addition are China prospects specified brand makers.

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