Method of producing solid decorated graphic arts objects

Details Method of producing solid decorated graphic arts objects Method of producing solid decorated graphic arts objects

B - Operations, Transporting

44

C

B44C 1/16 (2006.01) B44C 1/22 (2006.01)

Patent

CA 2737801

Decorated three-dimensional articles (64, 78, 82, 86) may be produced having wall structure (66-72) with distortion-free images (40a, 40b) appearing through the inner and outer surfaces of the wall structure (66-72). Preferably, a sheet of paper stock (38) is imprinted on both faces with mirror images (40a, 40b), and the stock (38) is applied to a light-transmitting substrate (44) so that the image (40b) appears through the substrate (44), thereby yielding a blank (50). A plurality of lines of weakness (54) are formed in the blank (50) by laser ablation extending through the image (40a) and stock (38), but not through the image (40b), in order to define spaced apart bend areas (56). The substrate (44) is then heated along the bend areas (56), and the blank (50) is formed about a mandrel (62). If desired, the formed blank (50) may be completed by addition of a base (74). The invention can be used for the economical production of a virtually limitless number of three-dimensional articles, even with one-off unique articles or short runs of articles.

Des articles tridimensionnels décorés (64, 78, 82, 86) comportant une structure de paroi (66-72) avec des images sans distorsion (40a, 40b) apparaissant à travers les surfaces intérieure et extérieure de la structure de paroi (66-72) peuvent être produits. De préférence, une feuille de papier support (38) est imprimée sur les deux faces avec des images miroir (40a, 40b), et le support (38) est appliqué à un substrat transmettant la lumière (44) de sorte que limage (40b) apparaisse à travers le substrat (44), produisant ainsi un blanc (50). Une pluralité de lignes de faiblesse (54) est formée dans le blanc (50) par ablation laser sétendant à travers limage (40a) et le support (38), mais pas à travers limage (40b), afin de définir des zones courbées séparées (56). Le substrat (44) est alors chauffé le long des zones courbées (56), et le blanc (50) est formé autour dun mandrin (62). Si on le désire, le blanc formé (50) peut être complété par laddition dune base (74). Linvention peut être utilisée pour la production économique dun nombre virtuellement illimité darticles tridimensionnels, même avec des articles uniques ou des articles en série limitée.

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