English translation: Optical brightening agent (OBA)
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23:33 May 29, 2001
German to English translations [PRO] Tech/Engineering
Explanation: Just confirming the first proposal. Check the link below as well.
Optical Brightening Agents (OBA's): Chemical substance used to increase the apparent whiteness of a material, best known for giving washing powders their blue white wash, but also used by the paper industry. OBA's present a minimal health hazard. They are sometimes used in recycled paper, but to a lesser extent than in virgin paper.