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《Journal of Gems & Gemmology》 2007-01
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Study on Technology of Blue Dyed Pearl

ZU En-dong,YE Dong,YANG Gui-hong(Faculty of Materials and Metallurgical Engineering,Kunming University of Science and Technology,Kunming 650093,China)  
The technology of blue dyed pearl is studied by orthogonal methods in the laboratory conditions.The dyeing parameters and process are illustrated in detail.The results show that the best experimental scheme of the blue dyed pearl is with solvent ratio(distilled water∶ethanol∶acetone) of 6∶3∶1,dye(methyl blue) consumption of 1.0 g/10 ml,surface active solvent [CH3(CH2)11SO4Na≥59%] consumption of 0.25 g/10 ml,dyeing temperature of 36°C and assistant seepage solvent(KI≥98.5%) consumption of 1.0 g/10 ml.
【CateGory Index】: TS933
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