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Optical Brighteners

Optical Brighteners are colorless dyes. Sometimes, it is added to cleaning chemicals to enhance the visual appearance of the substrate to be cleaned. When applied, optical brighteners absorb invisible, ultra-violet radiation, such as in sunlight and emit visible blue-white light. This phenomenon counteracts the natural yellowness of the substrate. Cleaners contain optical brightener (fluorescent whitening agents) to provide brighter and cleaner looking substrates relative to traditional cleaners.


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