Optical brightener hs code 32042000 can be widely used in PVC, PS, ABS, PE, PP and other plastics. Optical brightener hs code 32042000 has a superior fluorescent whitening effect, good thermal stability, and few added amounts. More importantly, it is more cost effective. Optical brightener OB-1 hs code 32042000 can greatly improve the whiteness of recycled polyester staple fiber and recycled textiles and plastic soda bottles (PET).
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