Optical Brightener
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Detergent & Home Care Chemicals
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Optical brighteners are usually white or yellow-green crystalline powders used in detergents to whiten yellowed areas. Their mechanism involves absorbing ultraviolet light, which is beyond the visible spectrum, and converting it into visible blue-violet light. This counteracts the original yellow hue and enhances the intensity of the reflected light, making the material appear whiter.
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There are various types of fluorescent whitening agents, such as CBS and CXT. They are applied to different materials and should be selected based on specific needs.
Some fluorescent whitening agents are toxic.
