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Optical Brightening Agents or Fluorescent Whitening Agents

Optical Brightening Agents Agents are also known as Fluorescent Whitening Agents (FWA) and are useful in masking the inherent yellowness in plastics, lacquers, paints, inks, photographic solutions and fibres. These Optical Brighteners function by absorbing light in the invisible UV spectrum and emitting light in the visible blue region (400-500 mm) via a fluorescent mechanism. The end result is a brighter and fresh appearance also known as whiter than white or ultra white. These are also useful in brightening of other color pigments and increasing the jetness of black pigments.

Clarifying or Nucleating agent is a high performance sorbitol based substance that reduces haze and enhances the clarity of polypropylene through nucleation of the polymer.

Fluorescent Whitening Agent

Fluorescent Brightener OB

Multi purpose brightener for whitening of thermoplastics, polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyester fibres, paints, inks, solvent based coatings, etc.
Best Brightener for white pigmented polyolefin polymers. Imparts natural white effect.

Fluorescent Brightener OB-1

Mainly used in the whitening of polyester and other plastics, as well as in the whitening of nylon during polymerization.
Most popular brightener for producing LLDPE based brightener masterbatch. Very useful for improving the appearance of recycled or reprocessed polymers such as polyester and nylon waste.

Fluorescent Brightener KCB

Mainly used in the whitening of synthetic fibres and plastics products, especially good at whitening of EVA & PET. Also useful for whitening of solvent based coatings, ink & paints.
Comprehensive application field, good compatibility with all kinds of plastics, excellent stability under all kinds of climatic conditions, significantly stronger as compared with OB & OB-1. Imparts a neutral white effect.