Process for producing self-adhesive sheet materials

B - Operations – Transporting – 26 – D

Patent

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B26D 9/00 (2006.01) B26F 3/00 (2006.01)

Patent

CA 2089002

A process for providing lengths of self-adhesive strip materials as laminates comprising in sequency the substrate (3), adhesive (4) and release sheet (5) in which process the laminate is first subjected to a cutting operation in which the substrate is cut through with a die (8) without cutting through the underlying release paper, to form a product strip which is continuous in the machine direction, the laminated strip is then severed (17) in the cross direction through its entire thickness and reeled off to form product rolls. Preferably the starting material is converted into several parallel machine direction lengths of product (18) separated by cutting the substrate through its entire thickness and perforating the release sheet (15), winding the product roll as a single roll and then snapping apart adjacent strips at the perforations. The substrate is usually a polyvinylchloride web. The product is suitable for use in home decorating.

Un procédé visant à produire des longueurs de matériel auto-adhésif comme des laminés, comprenant, en séquence, le substrat (3), l'adhésif (4) et la feuille de dégagement (5); dans ce procédé, le laminé est d'abord soumis à une opération de coupe au cours de laquelle le substrat est découpé à la forme (8) sans que le papier de dégagement sous-jacent ne soit touché, de façon à former une bande de produit continue dans la direction de la machine, la bande laminée est ensuite coupée (17) diagonalement dans toute son épaisseur et ensuite emportée pour former des rouleaux de produit. Le matériau de départ est, de préférence, converti en plusieurs longueurs parallèles de produit (18), dans la direction de la machine, séparées en coupant le substrat sur toute son épaisseur et en perforant la feuille de dégagement (15), roulant le produit en un rouleau unique et en séparant les bandes adjacentes aux perforations. Le substrat est habituellement une bande de polyvinylechloride. Le produit se prête à des fins de décoration intérieure.

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