Data support with continuous tone image

Details Data support with continuous tone image Data support with continuous tone image

B - Operations, Transporting

42

D

B42D 15/00 (2006.01) B41M 3/10 (2006.01)

Patent

CA 2594780

The invention relates to a data support (20) with a continuous tone image produced by gravure printing, comprising printed part surfaces (26, 28) with defined tone values, whereby at least three printed part surfaces have differing tone values. According to the invention, one or more of the different tone values for the printed partial surfaces (28) which appears fully printed to the naked eye is formed with a certain proportion of non- printed white regions (W).

L'invention concerne un support de données (20) comportant une image en demi-teinte produite par héliogravure sur cuivre, qui présente des surfaces partielles imprimées, munies de valeurs de noircissement déterminées. Au moins trois surfaces partielles imprimées comportent des valeurs de noircissement différentes. Selon l'invention, il est prévu qu'une ou plusieurs des différentes valeurs de noircissement soient formées par des surfaces partielles (28) imprimées pouvant être perçues à l'oeil nu sur toute leur surface et comportant une proportion déterminée de zones blanches (W) non imprimées.

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