The use of a natural dye in the formation of a thin coloured coating on an aluminium surface

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Title

The use of a natural dye in the formation of a thin coloured coating on an aluminium surface (EN)

Creator

Καλλιθρακας-Κοντος Νικολαος (EL)

Kallithrakas-Kontos Nikolaos (EN)

Tsangaraki‐Kaplanoglou I. (EN)

Moshohoritou R. (EN)

Type

journalArticle

Partial document
Publication in journal (EN)

Article
Scientific article (EN)

Issued

1989

Year

1989 (EN)

Description

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. (EN)

Subject

Electrolytic colouring (EN)

Unanodised aluminium (EN)

Language

English

Publisher

John Wiley and Sons (EN)

School / Department / Institute

Πολυτεχνείο Κρήτης (EL)

Technical University of Crete (EN)

Provider

Technical University of Crete