Optical Brightener

Product overview

POLYGOLD® OB is an additive compound designed to enhance the whiteness and brightness of polymer products. By absorbing invisible UV light and re-emitting it as visible blue light, OB masterbatches counteract yellowing and dullness, giving plastics a cleaner, brighter, and more appealing appearance. They are widely used in packaging, films, sheets, fibers, and nonwoven fabrics where visual appeal, surface quality, and color uniformity are critical.

Key Features & Benefits

  • Enhanced Whiteness & Brightness: Improves visual appeal and product aesthetics by compensating for natural yellowness in polymers.
  • Uniform Appearance: Ensures consistent color and brightness across films, sheets, and molded parts.
  • Reduces Yellowing: Protects against thermal or UV-induced discoloration during processing or outdoor exposure.
  • Improved Printability: Bright, uniform surfaces provide better adhesion and clarity for printed designs.
  • Process-Friendly: Easy to disperse in polymer matrices without affecting extrusion or molding processes.
  • Cost Efficient: Reduces the need for high pigment loading while achieving superior whiteness.
365 Plastium PVT. LTD.
365 Plastium PVT. LTD.

Applications

  • Woven Fabrics – woven sacks, FIBC bags & tarpaulins
  • Blown Films - industrial liners, garbage bags, courier bags / mailer bags
  • Rigid Packaging – containers, trays, lids, and food packaging products
  • Non-Woven Fabrics – shopping bags, agricultural fabrics, geotextiles
  • Pipes & Sheets – irrigation pipes, electrical conduit, corrugated pipes, roofing sheets
  • Injection Molding Applications – household items, toys, furniture, and industrial products
  • Blow Molding Applications – bottles, jars, drums, and containers
  • Thermoforming Applications – trays, sheets, and disposable packaging solutions

Why Use OB Masterbatches?

OB masterbatches masterbatches improve the visual appeal and perceived quality of polymer products while maintaining their mechanical and processing performance. They are essential in applications where a bright, white, and uniform appearance is a key differentiator, such as packaging films, consumer goods, and industrial products.