Tubular blanket and printing machine using tubular blanket

Details Tubular blanket and printing machine using tubular blanket Tubular blanket and printing machine using tubular blanket

B - Operations, Transporting

41

F

B41F 3/46 (2006.01) B41F 3/16 (2006.01) B41F 13/193 (2006.01) B41N 10/02 (2006.01)

Patent

CA 2236061

The present invention relates to a tubular blanket which comprises a main blanket section having at least a portion coming into contact with a printing-made web and a remaining blanket section other than the main blanket section. The remaining blanket section has a thickness thinner than the thickness of the main blanket section. Thus, even if inks or paper particles are attached to a web absent area on a circumferential surface of the tubular blanket, it is possible to eliminate the influence from the attachment of inks or paper particles, and to make the web cut-off hard to occur, so that the interference with the use of the tubular blanket is preventable, thereby enhancing the economy and the working efficiency.

Cette invention concerne un blanchet tubulaire qui comprend une section principale dont au moins une partie entre en contact avec la bande à imprimer et une autre section n'entrant normalement pas en contact avec la bande à imprimer. La seconde section a une épaisseur moindre que la section principale. Ainsi, l'encre et les particules de papier susceptibles de s'agglomérer sur la section non en contact avec la bande à imprimer ne risquent pas d'entraver le bon fonctionnement de la machine en cas de dérive de la bande à imprimer hors des limites de la section principale du blanchet, dérive normalement accompagnée d'une rupture de la bande à imprimer et d'une entrave au bon fonctionnement du blanchet tubulaire, deux facteurs ayant pour effet d'augmenter les coûts de production et de réduire le rendement.

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