Optical Brightener
Optical Brighteners are fluorescent whitening agents designed to brighten colors or mask yellowing in plastics, lacquers, paints, inks, photo-processing solutions, and fibers. They function by absorbing invisible ultraviolet radiation and re-emitting it as visible light in the blue range of the spectrum. Optical brighteners are particularly effective in masking the yellowish cast sometimes observed in plastics and fibers after high-temperature processing operations. They are also used in substrates containing pigments or dyes to make the colors appear more brilliant.
Applications:
• Textiles: Optical brighteners enhance fabric brightness and whiteness, counteracting yellowing or dulling.
• Paper and printing: Optical brighteners improve paper whiteness, making printed text and images appear vibrant.
• Plastics and polymers: Optical brighteners mask yellowing or discoloration, maintaining or enhancing whiteness and brightness.
• Detergents and laundry products: Optical brighteners in laundry products make clothes appear brighter and cleaner.
• Cosmetics and personal care products: Optical brighteners enhance visual appeal, making surfaces appear brighter and more radiant.
• Photography and imaging: Optical brighteners improve print brightness and vibrancy in photo-processing and inkjet printing.
“ Chinese OB is available ”
SPECIFICATION
Colour | slight greenish yellow |
Appearance | Powder |
Purity % | 99 |
Melting Point ℃ | 201-205 |