cationic treatment

  • Whiter And Brighter – Optical Brightening Agents

    Introduction Optical brightener, Optical Brightening Agent (OBA), Fluorescent Brightening Agent (FBA) or Fluorescent Whitening Agent (FWA) is a compound which, when applied to a textile material, absorbs the short wavelength electromagnetic radiation (300-400 nm) which is invisible to the human eye, and converts it into visible light of longer...