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Optical Brightener KCB

CAS # 5089-22-5

Optical Brightener KCB is a high-performance fluorescent whitening agent used to enhance the brightness and whiteness of plastics, films, fibers, and coatings.

Description:

Optical Brightener KCB is a premium fluorescent whitening agent designed to enhance the brightness, whiteness, and visual clarity of plastics, synthetic fibers, and specialty materials. By absorbing ultraviolet light and re-emitting it as visible blue light, KCB effectively offsets yellowing and dull tones, delivering a cleaner, brighter finish. Its excellent thermal stability and compatibility with a wide range of polymers make it an ideal choice for demanding manufacturing environments.

General Properties:

  • Chemical Type: Fluorescent whitening agent (benzoxazole derivative)

  • Appearance: Yellow-green crystalline powder

  • Solubility: Low solubility in water; soluble in organic solvents

  • Fluorescence: Strong blue fluorescence under UV light

  • Thermal Stability: Excellent for high-temperature processing

 

Applications:

  • Plastics & Polymer Processing

    • Widely used in polyolefins, PVC, EVA, and engineering plastics to improve whiteness and visual appeal.

  • Films & Packaging Materials

    • Enhances brightness and clarity in plastic films, sheets, and packaging products.

  • Synthetic Fibers & Textiles

    • Improves brightness and aesthetic quality in polyester and other synthetic fibers.

  • Coatings & Paints

    • Used in coatings and decorative finishes to enhance color brilliance and reduce yellowing.

  • Consumer & Industrial Products

    • Applied in molded goods, appliances, and specialty materials requiring high visual quality.

 

Advantages:

  • High Brightening Efficiency: Provides strong whitening effect at low dosage levels.

  • Excellent Thermal Stability: Maintains performance during high-temperature polymer processing.

  • Strong UV Absorption & Fluorescence: Effectively improves brightness and offsets discoloration.

  • Broad Compatibility: Works well with a wide range of plastics, fibers, and coating systems.

  • Long-Lasting Optical Performance: Resists degradation, ensuring sustained brightness over time.

 

Safety & Handling:

Optical Brightener KCB should be handled using standard industrial safety practices.

  • Dust may cause mild irritation to eyes, skin, or respiratory tract

  • Avoid inhalation of airborne particles

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