Waxaan soo saareynaa noocyo badan oo OBA ah, wakiilka caddeynta fluorescent. Agent Brightener Optical BBU, oo sidoo kale loo yaqaan wakiilka Fluorescent whitening BBU, waa iskudhis kiimiko ah oo loo isticmaalo warshado kala duwan sida dunta, warqadaha, iyo balaastikada si kor loogu qaado iftiinka iyo cadaanka alaabta.