Optical Brighteners

Keystone Aniline Corporation supplies a full line of Keyfluor Optical brighteners for both water soluble and solvent soluble applications. Common applications include: Detergents, Inks, Non-Destructive Testing, Paper, Plastics, Security Marking, Water Tracing etc.

In addition to our optical brighteners, Keystone also has a line of Invisible Fluorescent colorants. Just like to optical brighteners, these products are colorless under visible light, but will glow when excited with UV light. But unlike traditional optical brighteners, each these Invisible Fluorescent colorants emits a different color.

Click Here for our Technical Bulletins for Optical Brighteners
Technical Bulletin TB059: - Keystone Fluorescent Dyes