engleski

COMPARISON OF GREEN HUES OF NATURAL AND SYNTHETIC DYES BY VIS AND NIR ANALYSES

In this paper, the analyses have been performed on a palette of green shaded hues of natural and synthetic dyes, in order to compare them in a concept of camouflage effect achieving. Spectral remission characteristics of green colour in nature were compared to synthetic and natural dyes over VIS and NIR spectrum and, also FTIR – ATR analyses of dyestuff has been performed, in order to obtain camouflage characteristic of coloration. In this paper, also, a new technology INFRAREDESIGN® has been presented, which is based on resolving and controlling specific colorimetric characteristics and dyes properties in infrared spectrum. Besides providing good camouflage of military uniforms, facilities, etc., it processes also hidden text, image or graphic, which is not available to the human naked eye but visible only in NIR waveband, allowing marking and tagging individuals so as to recognize one's own forces in battle activities, in unfavourable meteorological conditions or during rapid movements of formations in complex situations.

camouflage; natural dyestuff; synthetic dyestuff; VIS; NIR; INFRAREDESIGN

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