Optical Brightening Agent ER(C.I.199)

OpticalBrightening Agent ER(C.I.199)

{Main Chemical Composition}
Stilbene bistriazine derivative.

{Specifications}

{Properties}:
Fluorescent Whitening Agent ER, also calledwhitening agent for polyestr, is one of the bisdiphenylethelenecompounds and similar to Blankophor ER made in Bayer A.G., Germany.ER has an appearance of yellowish green powdered cry stal with apurity equal to or higher than 99% and a melting point of 229 to231. It is non-toxic, odorrless, nonionic and soluble in most oforganic solvents. Products whitened by ER have a natureal pure whiteappearance. Being stable in chemical properties and characterizedby strong hightemperature resistance and photostability, ER is oneof the most ideal shitening agents generally accepted internationallyfor polyester fiber.

{Applications}:
Opticad Brightening Agent ER in the formof refined powder is very suitable for whitening and brighteningpolyester fiber and has good whitening effect on plastics such asPE,PP and PVC and their products. Products can be remarkably upgradedby adding ER refined powder in the process of shaping with polyesterchips or recovered polyester chips. In addition, the refined powderis widely used in coating industry.

{Packing and storing}:
Packaged in cardboard barrals, 20kg or25kg each. Stored in cool and ventilated place.