Optical Brightening Agents (OBA) or Fluorescent Whitening Agents (FWA) is added to many substrates to reduce yellowing, improve whiteness and enhance the brightness of the product.

Optical whiteners function by absorbing ultraviolet radiation and re-emitting blue light. Optical brighteners give more intensity to some colors as well.
 
We offer below OBAs based on the sulfonic group.

We offer below OBAs based on the sulfonic group.

It constitutes of two sulfonic acid groups and is good for hydrophobic fiber (nylon, silk & wool) application in Acidic pH.

It constitutes of four sulfonic groups and is having good solubility and is ideal for cellulosic fiber and paper application at neutral or alkaline pH.

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