Method and device for producing a multi-ply web of flexible...

B - Operations – Transporting – 26 – D

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B26D 1/36 (2006.01) B31F 5/04 (2006.01)

Patent

CA 2554948

Method for producing a multi-ply web (19) of flexible material, such as paper and nonwoven material, comprising at least one first (1) and one second ply (8) which are interconnected by gluing in a glue pattern (12; 24). The multiply web is produced by applying glue in a glue pattern to a first web shaped material (1) from a patterned glue transfer roll (5), laminating a second web shaped material (8) with the first web shaped material (1) in a press nip between a lamination roll (10) and an impression roll (7). After lamination the laminated web (19) is cut and/or perforated (22; 25) in register with the glue transfer and lamination while still residing on said impression roll (7). There is also provided a multiply web which is cut or perforated in a pattern (22; 25) which is in register with the glue pattern (12; 24).

La présente invention se rapporte à un procédé permettant de produire une bande multicouche (19) d'un matériau souple, tel que du papier ou un matériau non tissé, qui comprend au moins une première couche (1) et une seconde couche (8) qui sont interconnectées par collage selon un motif de collage (12, 24). Le procédé de production d'une bande multicouche consiste à appliquer de la colle selon un motif de collage sur un premier matériau en forme de bande (1) à partir d'un rouleau de transfert de colle à motif (5), à appliquer par pression un second matériau en forme de bande (8) sur le premier matériau en forme de bande (1) dans une zone de pression entre un rouleau de stratification (10) et un rouleau d'impression (7). Après la stratification, la bande stratifiée (19) est découpée et/ou perforée (22, 25) de manière qu'elle coïncide avec le transfert de colle et la stratification toute en restant sur ledit rouleau d'impression (7). L'invention concerne également une bande multicouche qui est découpée ou perforée selon un motif (22, 25) qui coïncide avec le motif de collage (12, 24).

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