Plastic using optical brightening agent is a fluorescent dye, known as white dye, is also a complex organic compound. It can excite incident light to produce fluorescence so that plastic can be obtained similar fluorspar sparkling effect, so as to achieve the whitening effect.

FP has very good whitening effect on various kinds of plastics and their products,especially on the products of plastics such as PVC and PS.It has extra ideal whitening and brightening effects on artificial leathers. No yellowing and discoloring will occur on the products whitening by this whitening agent even if they are stored for a long time.Whitening Agent FP is similar to Uvitex FP made in foreign country.