Method for producing a pattern on an endless strip

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 11/00 (2006.01)

Patent

CA 2729999

The invention relates to a method for producing a topographical pattern from polymer material on an endless strip with a longitudinal direction and a transverse direction extending perpendicularly thereto, in which method a cylindrical rotary screen is used to apply the polymer material by the screen printing process to a circumferential side of the endless strip to be printed, wherein, when producing the pattern, the rotary screen, rotating repeatedly about its longitudinal axis, rolls on the circumferential side of the endless strip, whereby the pattern is applied to the circumferential side in at least one path running at least once uninterruptedly around the circumferential side in such a way that the beginning and the end of each revolution of the path are arranged along a common straight line, wherein, when rolling, the rotary screen performs N revolutions about its longitudinal axis during each revolution of the path on the circumferential side of the endless strip and N is a positive integer.

Linvention concerne un procédé pour produire un motif topographique en matériau polymère sur une bande sans fin avec un sens longitudinal et un sens transversal sétendant perpendiculairement à celui-ci, le matériau polymère étant appliqué sur un côté périphérique à imprimer de la bande sans fin par un procédé sérigraphique au moyen dun cadre rotatif cylindrique. Lors de la production du motif, le cadre rotatif roule sur le côté périphérique de la bande sans fin en tournant plusieurs fois autour de son axe longitudinal, appliquant ainsi le motif sur le côté périphérique sur au moins un lé s'étendant au moins une fois de manière ininterrompue sur le côté périphérique, de sorte que le début et la fin de chaque tour de lé sont disposés le long dune droite commune, le cadre rotatif effectuant, lorsquil roule, N rotations autour de son axe longitudinal pendant chaque tour de lé sur le côté périphérique de la bande sans fin et N étant un nombre entier positif.

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