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Home » Dyestuff » Optical Brighteners

Optical Brighteners

Optical Brighteners
We are also one of the leading names in the field of Optical brighteners which are also known as optical brightening agents. These have in them capacity to absorb light in violet/ultraviolet region of electromagnetic spectrum ad subsequently re-emit light in blue region. With the coloring matter, be it natural/present as contaminant in fiber being generally decolorized by different bleaching methods, the appearance of textile substrate is creamish after bleaching. Thus it is necessary that chemical treatment is done to neutralize yellow tint of textile fibers.

The usage areas of Optical brightening agents (OBA) includes:
  • Textiles
  • Paper
  • Detergents
  • Plastics

  • These are effective only when incident light has significance proportion (like daylight) of UV rays
  • When material treated with OBAs is exposed to UV black light source, it glows in dark
  • Anionic OBA’s exhaust on cotton, wool and silk
  • Cationic OBA’s exhaust on acrylic and certain polyesters
  • Non-ionic OBA’s exhaust on all synthetics

Application of Optical Brighteners:
Optical brighteners are widely used in:
  • Detergents
  • Manufacturing of paper
  • Cosmetics
  • Adhesives
  • Non-destructive testing of metal parts

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