B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 3/06 (2006.01) B41M 1/18 (2006.01)
Patent
CA 2315354
The invention concerns a method for producing a particular photoluminescent polychromatic printed image which consists in: producing at least one set of at least three filtered monochromatic images (6a, 6b, 6c) from a particular original polychromatic image visible in the visible light filtered with a spectral bandwidth not greater than 15 nm, along at least three wavelengths of fundamental colours equal to the wavelengths of luminescent pigments which are used, with the corresponding filtered monochromatic images (6a, 6b, 6c) for printing separately, above one another, three printed monochromatic pictures (8a, 8b, 8c). The invention also concerns the resulting picture, a protective device and a document bearing such a picture.
L'invention concerne un proeédé de réalisation d'une image (8) polychromatique imprimée photoluminescente quelconque. On réalise au moins un jeu d'au moins trois images filtrées monochromatiques (6a, 6b, 6c) à partir d'une image d'origine (1) polychromatique quelconque visible en lumière visible que l'on filtre, avec une bande passante spectrale inférieure ou égale à 15 nm, selon au moins trois longueurs d'onde de couleurs fondamentales égales aux longueurs d'onde de pigments luminescents que l'on utilise, avec les images filtrées monochromatiques (6a, 6b, 6c) correspondant pour imprimer, séparément, les unes au-dessus des autres, trois images imprimées monochromatiques (8a, 8b, 8c). L'invention concerne l'image obtenue, un dispositif de protection et un document portant une telle image.
Mcfadden Fincham
Trantoul Francois
LandOfFree
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