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Optical Brighteners / Whitening Agents

Based on 288 products - Last update on the Jun 26, 2025

Optical brighteners or whitening agents are used in plastics to enhance their appearance by making them look brighter and less yellow. These agents function by absorbing ultraviolet light and re-emitting it as visible blue light, which masks any yellowing and gives the plastic a whiter, more vibrant appearance. Key features include improved color brightness, enhanced visual appeal, and increased product longevity. Optical brighteners are particularly suitable for applications in packaging, consumer goods, and automotive parts. 

Alternatives to optical brighteners include UV stabilizers. Sub-types include fluorescent whitening agents and non-fluorescent brighteners.

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CESA™ Fiber Additives

by Avient (Formerly PolyOne)

CESA™ Fiber Additives by Avient (Formerly PolyOne) include UV stabilizers, flame retardants, optical brighteners, antimicrobials, antioxidants, anti-static, heat preservation additives, and chain extenders for synthetic fibers. Stain-resistant additive concentrates are the latest addition to its portfolio. They are designed for spun-dyed polyester, polypropylene and polyamide. They provide excellent spinnability and can be combined with colors into a single masterbatch for convenience.<br> <ul style="padding-left: 40px;"><li>Anti-stain concentrates are formulated without fluorine-based raw materials and can prevent soils from setting in polyester fibers, enabling easy stain removal with common cleaners like wipes, sprays, or steamers.</li> <li>Antimicrobial additive concentrates (organic or inorganic) help protect textiles from stains and odors caused by microbial growth and are used in apparel, sportswear, household furnishings and carpets.</li> <li>Chain extenders provide smoother and more stable processing of recycled PET into fibers, which are used in clothing, automotive textiles and home textiles. <li>Fiber-specific flame-retardant systems are used in automotive textiles, home and office furnishings, clothing and carpeting.</li> <li>Heat preservation additives are suitable for clothing, home textiles and technical fabrics.</li> <li>Light stabilizer systems are recommended for carpeting, upholstery, automotive textiles, artificial turf, sun protection textiles, tents, sun loungers and garden furniture textiles.</li> <li>CESA™ Fiber Additives also consist of concentrates that impart immediate soft touch effect to PP, PES, PA and PLA fibers resist regular washing and are suitable for hygiene articles, clothing, home textiles and carpets.</li> <li>Hydrophobic additive concentrates offer fast and durable water repellency and IPA repellency grade 6 to PP nonwovens, which are used in roofing underlay, cable wrapping, geotextiles, surgical gowns and drapes, sterile tray wraps, hospital bed sheets, curtains and various filtration applications.</li></ul>
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Optical Brighteners / Whitening Agents