2018
DOI: 10.31871/ijntr.4.8.14
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Security Methods in the Art and Science using Spectroscopy in the Visual and Near Infrared Range

Abstract: Near infrared Z values are determined with spectroscopy of colorants, which are used in security charts, printing of documents and banknotes. A new application of security methods in informatics is being observed in this article. The processes of dyeing of fabrics are being controlled by programming twin dyes. Two different mixtures of dyes have been created for the same color. They differ in light absorption only in NIR area. The given, desired difference in their values of light absorption and NIR spectrum h… Show more

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