TOP 4 Manufacturer ofgreen or yellow chemical powder optical
brightener OB-1 1533-45-5 for Plastics/PSF/Master Batches
Optical Brightening Agent OB-1
2.2’-(4.4’-diphenol vinyl) dibenzoxazol
Appearance:yellowish green powder
Mainly be used in whitening of polyester and plastic, as well in whitening of Nylon during polymerization.
For whitening of polyester and nylon; also used in ABS, PS, HIPS, PA, PC, PP, PET,EVA, PVC, etc.
Rate of use: (per 1000kg of substrate)
EVA, PP, nylon: 75-200g
25kg per fiber drum