Optical Brighttening Agent for Polyester, Cotton, Nylon and Acylic.
OBA 4BK, has high whitening effectiveness with slight
shade of blue. Stable to light, chemical stability is good.

OBA VBL, has slight purple fluorescence. Soluble in 80 times of soft water, stable to hard water up to 300 ppm.

Acrywhiter TF-920, Excellent anti-chlorine bleach property, it is suitable in one bath with chlorine bleach, has very high increasing power for whiteness. Color shade is vivid and purity.

OBA CPS-A, this product features strong fluorescence,high whiteness, low dosage and vivid color shade, it is a ideal optical brightening agent for polyester.