Optical Brighteners
Keystone Aniline Corp. supplies a full line of Keyfluor optical brighteners for both water soluble and solvent soluble applications. Optical brighteners have a unique characteristic of being clear under normal conditions and visible when excited in the UV range.
The Keyfluor optical brighteners are often used to enhance the whiteness of products, such as textiles (laundry detergents), plastics, and adhesives. They are also widely used as markers or taggants for a variety of applications including non destructive testing.