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紙托增白劑

紙托增白劑

紙托增白劑

紙托增白劑(brightener/Optical whitener)是一類能提高纖維織物和紙張等白度的有機化合物。又稱光學增白劑、熒光增白劑??椢锏瘸3S捎诤猩s質而呈黃色,過去都采用化學漂白的方法進行脫色,采用在制品中添加增白劑的辦法。紙托增白劑的作用是把制品吸收的不可見的紫外線輻射轉變成紫藍色的熒光輻射,與原有的黃光輻射互為補色成為白光,提高產品在日光下的白度。

紙托增白劑

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