Fluorescent brighteners /Whitener

Fluorescent brightener OB-1 is particularly heat-resistant and is mainly used for whitening by hot melt pad dyeing. It is suitable for whitening polyester fibers and polyester, cotton and other fiber blended fabrics. This product can also be used for whitening plastics such as ABS, PS, HIPS, PA, PC, PP, EVA and rigid PVC. After adding OB-1 to nylon fibers, nylon and polyester, the whiteness will also be significantly improved. After adding OB-1 to recycled polyester fiber waste, bottle materials and chips, the recycled materials will appear whiter, and the color intensity among different recycled materials will become more consistent.

CAS： 1533-45-5

Molecular formula: C28H18N2O2

Molecular weight: 414.4547

Usage and Dosage:
Transparent products 0.0025~0.005%
Opaquely finished products 0.01~0.03%
It can also be formulated into concentrated masterbatch with a content of 1% to 10%, which is then used in product processing according to the required addition ratio