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Old December 14th, 2010, 03:35 PM   #5
Steve Price
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Join Date: May 2008
Posts: 74
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Hi Yaser

Using natural dyes is an art. The physical and chemical explanations of how and why the artisans get the results that they do are science. You don't have to know that fuchsine is a triphenylmethane dye to know that it fades when exposed to strong light. But you do have to know something about the interactions of such compounds with light to understand why it fades.

Regards

Steve Price
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