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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.

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Optical brighteners are added during the thermoplastic molding process, rather than added in liquid form afterward, that’s the word “mass-whitening” come from. generally, obas were mixed with powder or granules plastic for flexible pvc, obas were added in …

Manufacturer for OB 1 fluorescent brightening agent for rubber Supplier using a higher enterprise reputation,from China.Our solutions contain:Manufacturer for OB 1 fluorescent brightening agent for rubber Products are mostly exported to European countries,it can be preferred in many nations.


Professional Manufacturer for OB 1 fluorescent brightening agent for rubber goods of China supplier for international and neighborhood trade company.Being the most beneficial products of our factory,our Manufacturer for OB 1 fluorescent brightening agent for rubber merchandise series happen to be tested and won us professional authority certifications. For extra parameters and item list specifics,please click the button to have additional information.

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