Journal of the Japan Society of Colour Material
Online ISSN : 1883-2199
Print ISSN : 0010-180X
ISSN-L : 0010-180X
Volume 60, Issue 9
Displaying 1-3 of 3 articles from this issue
  • Seisirô ITÔ, Shin-ichi ISHIDA, Seiji HAGINO, Takashi ONAKA ...
    1987 Volume 60 Issue 9 Pages 473-480
    Published: September 20, 1987
    Released on J-STAGE: November 20, 2012
    JOURNAL FREE ACCESS
    An attempt was made to develop an electrolytic method to color anodized aluminum white by depositing hydrated titanium oxides in pores in the anodic oxide film by electrophoresis. The objective of this study is to determine the optimum process parameters which give sufficient whiteness to anodized aluminum.
    It was found that the whiteness depends significantly on the anodizing process. Sufficient whiteness was not obtained on the aluminum which anodized in sulfuric acid bath, while sufficient whiteness was obtained on the aluminum which is anodized in two acids : first in sulfuric acid bath and then in phosphoric acid bath. It appears that the stronger whiteness in the latter process is due to the formation of the larger pore size in the anodic oxide film which allows sufficient amount of hydrated titanium oxide particles to deposit in the pores.
    It was found from the polarization curve that the deposition of titanium oxide on the anodic oxide film takes place at about -3V- -3.5V. More homogeneous whiteness was obtained by A. C. electrolysis at about 16V than by D. C. electrolysis at -3- -3.5V.
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  • Fukuji SUZUKI
    1987 Volume 60 Issue 9 Pages 481-487
    Published: September 20, 1987
    Released on J-STAGE: November 20, 2012
    JOURNAL FREE ACCESS
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  • Toshio ICHIMI
    1987 Volume 60 Issue 9 Pages 488-495
    Published: September 20, 1987
    Released on J-STAGE: November 20, 2012
    JOURNAL FREE ACCESS
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