OB-1 Optical Brightener High Brightness Powder for Plastics Polyester Fibers and Polymer Whitening CAS 1533-45-5

Suitable for whitening and brightening thermoplastics such as ABS, PS, HIPS, PA (nylon), PC (polycarbonate), PP (polypropylene), PE (polyethylene), EVA, and rigid PVC.

Commonly used in the production of plastic products such as pipes, profiles, woven bag filaments, rigid plastic parts, plastic bottles, masterbatches, and plastic films. It effectively eliminates the yellow undertone of plastics, improving whiteness and gloss, and is particularly suitable for whitening in high-temperature molding processes and recycled plastics.

Primarily used for whitening synthetic fibers such as polyester, nylon, and polypropylene. It can be added during the fiber polymerization stage (solution whitening) or before fiber spinning. It can also be used for post-treatment whitening of fabrics through hot melt pad dyeing.

Can be used for whitening and brightening varnishes, paints, coatings, and printing inks, improving the whiteness and gloss of products, enhancing color vibrancy, and making the colors brighter and more vivid.

Applied to the production of synthetic leather, it improves the appearance whiteness and gloss of synthetic leather, enhancing the visual quality of the product.