FIELD: chemistry.
SUBSTANCE: article has a fluorescent coloured sublayer film and a fluorescent coloured film of an overlay layer on top of the fluorescent coloured sublayer film. The fluorescent coloured sublayer film has a first fluorescent dye in the polymer matrix of the sublayer. The fluorescent coloured film of the overlay layer has a second fluorescent dye in the polymer matrix of the overlay layer. The second fluorescent dye in the film of the overlay layer at least partially blocks light in a first wavelength range, while passing light in a second wavelength range in amount which is sufficient for fluorescence of the first fluorescent dye.
EFFECT: invention ensures design of a fluorescent article with improved operational characteristics.
25 cl, 8 dwg, 3 tbl, 3 ex
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