Non Destructive Detection of Iron Gall Inks by Means of Multispectral Imaging
| Hlavní autori: | , , |
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| Médium: | Článok |
| Jazyk: | angličtina slovenčina |
| ISSN: | ISSN 0034-5806 |
| On-line prístup: | http://www.viks.sk/chk/res_1_03_55_60.doc |
| Abstrakt: | SUMMARIES. False Colour Infrared Photography (FCIR) is demonstrated to be an appropriate method for analys-ing iron gallotannate ink or its components (iron- or copper sulphate, tannin, gum arabic). Its ad-vantage over other non-destructive optical methods (UV-light, Infrared spectroscopy, Proton Induced X-ray Emission) is that its apparatus is much simpler. CONCLUSION. We conclude that using FCIR non-destructive identification of metal tannin inks is possible, for both iron and copper based inks. The system using an ARTIST digital imaging camera is accurate and easy to use and may be seen as being an advisable tool for the identification of metal tannin inks in conservation workshops. There is even a good correlation between the density of the colour produced by the imaging process and the age of the ink, which means that FCIR multispectral imaging can also provide some information on the age of an ink and paper. Further research will establish a well-defined relation between the density of colour seen on an FCIR image and the age of an original object. |
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| ISSN: | ISSN 0034-5806 |
