Chemical auxiliary Ogilvy Optical Brightener OB-1 for PET to PSF fiber,CAS No. 1533-45-5, bright green powder, MF C28H18N2O2,widely used for recycled PET flakes to polyester staple fiber, PSF whitening, synthetic fiber whitening and PET bottle recycling, PET flakes scraps recycling, PET bottles scraps recycling and other PET recycling.
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