Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/2ED361D3-D34F-4F08-9509-A5388185578C | ||
| Year | 1989 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
| License |
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| Bibliographic Citation | I. Tsangaraki‐Kaplanoglou, R. Moshohoritou and N. Kallithrakas-Kontos, "The use of a natural dye in the formation of a thin coloured coating on an aluminium surface," J. Soc. Dyers Colour., vol. 105. no. 3, pp. 114–119, Mar. 1989. doi: 10.1111/j.1478-4408.1989.tb01201.x https://doi.org/10.1111/j.1478-4408.1989.tb01201.x | ||
| Appears in Collections |
This paper describes a novel method for the electrolytic colouring of unanodised aluminium. The clean metal is treated using an alternating current in an aqueous bath containing tin(II) sulphate and the natural colouring matter crocin, the digentobiose ester of crocetin. This coating has a bright grey-greenish-yellow colour about 3 μm thick and is suitable for decorative purposes. If the aluminium has been anodised the coating cannot be formed.
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