FIELD: chemistry.
SUBSTANCE: claimed invention relates to application of dithiolene metal complexes, namely compounds of formulae (1)-(19), structure of which is given in the invention formula, as colourless IR-absorbers for anti-counterfeit printing. Also claimed are: application of mixture for anti-counterfeit printing, applications of compounds and mixture in printing paint composition, anti-counterfeit document (versions).
EFFECT: compounds demonstrate high resistance with respect to chemical reagents and solvents, without losing their other advantages, which makes it possible to apply them as IR-absorbers for anti-counterfeit printing.
12 cl, 1 tbl, 20 ex
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