How to choose a optical brighteners for footwear materials.

Optical brightener KCB is now widely used in EVA foam shoe materials or footwear materials, considering the stability of the optical brightener:

fluorescent whitening agent for footwear materials

1. OB-1 has a high market share, but its most unfavorable feature is that it is unstable and will separate out.

2. FP-127 has an excellent whitening effect, but it is not durable, the shoes are made and sold in a long cycle. If the stability is not good enough, it will cause great economic loss to the shoe factory.

3. KCB has long-lasting stability and excellent whitening effect, now the big shoe factories in Fujian and Guangzhou choose this fluorescent whitening agent.

Fluorescent whitening agent KCB technical specifics:

C.I.: 367 CAS NO.: 5089-22-5 Appearance: yellowish green crystalline powder Melting point: 210-212℃ Solubility: insoluble in water, soluble in ordinary organic solvent. Application: Widely used in whitening and brightening of plastic films, molding materials, EVA foam, etc.

Keywords: fluorescent whitening agent, whitening agent, optical brightening agent, optical brighteners OB-1, optical brighteners FP-127, optical brightener KCB, fluorescent whitening agent for footwear materials, fluorescent brightening agent etc.