A cover intended for the fabrication of a booklet, a method...

B - Operations – Transporting – 42 – C

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Details

B42C 9/00 (2006.01) B42C 11/00 (2006.01) B42C 19/00 (2006.01) B42D 3/00 (2006.01)

Patent

CA 2271383

According to one aspect, the invention relates to a method of stacking covers for the fabrication of booklets. Each cover includes two cover sheets and an interconnecting spine. Applied to the inner surface of the spine is a binding device that includes a binding agent. The covers are mutually stacked with the inner surface of the spine of one cover lying against the outer surface of the spine of an adjacent cover. According to the invention, a deactivatable separating device is provided between the binding agent and the outer surface of the spine of an adjacent cover, so as to prevent adhesion between the spines of respective covers. According to another aspect of the invention, a cover of this kind is provided with a binding device that includes a binding agent (104) and a separating device (105) disposed on the surface of the binding agent that lies remote from the spine (103), this separating device preferably having a form of woven material affixed to the binding agent (104). The invention also comprises a method of producing a booklet with the use of the inventive cover. According to the inventive method of fabrication, the separating device is deactivated at the same time as the binding agent is activated and a sheet bundle is moved in towards the spine of the cover.

Sous un aspect, cette invention concerne un procédé d'empilage de couvertures destinées à la fabrication de livrets. Chaque couverture comprend deux feuilles de couverture ainsi qu'un dos d'interconnexion. Un dispositif de reliure comprenant un agent adhésif est appliqué sur la surface interne du dos. Les couvertures sont ensuite empilées les unes sur les autres de sorte que la surface interne du dos d'une couverture repose contre la surface externe du dos d'une couverture adjacente. Un dispositif de séparation pouvant être désactivé est disposé entre l'agent adhésif et la surface externe du dos d'une couverture adjacente, ceci de manière à éviter que les dos de couvertures respectives ne se collent les uns aux autres. Sous un autre aspect, cette invention concerne une couverture du même type, laquelle comporte un dispositif de reliure qui comprend un agent adhésif (104) ainsi qu'un dispositif de séparation (105). Ce dernier est disposé sur la surface de l'agent adhésif qui n'entre pas en contact avec le dos (103). Ce dispositif de séparation se présente de préférence sous forme d'un tissu tissé qui est accolé à l'agent adhésif (104). Cette invention concerne en outre un procédé de fabrication de livrets qui fait appel aux couvertures susmentionnées. D'après ce procédé, le dispositif de séparation est désactivé au moment où l'agent adhésif est activé, une liasse de feuillets étant ensuite amenée vers l'intérieur en direction du dos de la couverture.

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