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KMID : 1011420090140040033
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Journal of Korean Ophthalmic Optics Society
2009 Volume.14 No. 4 p.33 ~ p.37
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Study on Color and Oxidation Thickness for Titanium Spectacle Frames Colored by Anodization
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Hyun Seung-Cheol
Jin Moon-Seok
Kim Yong-Geun
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Abstract
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Purpose: To examine the coloring condition of titanium spectacle frames with various colors by using anodization method.
Methods: We made an anodization coater. Platinum plate with 3? cm2 was used for a cathode and titanium spectacle frame specimens was mounted on an anode in an electrolyte. An electric source device were designed to supply steady state current. The color of the coated spectacle frame specimens were measured by a spectrophotometer equipped with an integrating sphere. We use CIE L*a*b color system as chromaticity coordinates.
Results: The thickness of TiO2 of titanium spectacle frame specimens was varied as controlling current flow time for electrodes. The specimens with various kinds of color as a walnut, a yellow brown, a navy blue, a blue, a light blue, a mung bean, a yellowish green, a light purple, a purple, a flower pink, a bluish green, an emerald, and a green color etc. were obtained. The values of CIE L*a*b* for these specimens were measured and analyzed to be changed clockwise in chromaticity coordinates as the thickness of TiO2 increases.
Conclusions: We identified the coloring mechanism by anodization method in titanium spectacle frame specimens.
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KEYWORD
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Anodization, Titanium, Spectrocolorimeter
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