Method for applying a liquid seal rubber to a capsule

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 70/78 (2006.01) B29C 41/20 (2006.01) B65D 85/804 (2006.01)

Patent

CA 2730053

The present invention proposes a method for providing a rubber-elastic sealing member onto a capsule (1) intended for producing a beverage in a beverage production device, wherein the capsule has a body portion (3) having a side wall (3a) and a flange-like rim portion (2), wherein the rim portion (2) extends from the side wall (3a) of the body portion (3), the method comprising the steps of: - applying an uncured sealing composition (4) in a liquid or viscous state onto the rim portion (2) of the capsule (1), - heating said applied sealing composition (4) such that the sealing composition at least partially migrates towards the side wall (3a) until it reaches the side wall, and - curing the sealing composition (4) after the migration towards the side wall (3a).

La présente invention porte sur un procédé pour disposer un élément d'étanchéité en caoutchouc élastique sur une capsule (1) servant à produire une boisson dans un dispositif de production de boisson, la capsule comportant une partie de corps (3) pourvue dune paroi latérale (3a) et dune partie de rebord en forme de bride (2), la partie de rebord (2) s'étendant à partir de la paroi latérale (3a) de la partie de corps (3). Le procédé comprend les étapes consistant à : - appliquer une composition d'étanchéité non vulcanisée (4) dans un état liquide ou visqueux sur la partie de rebord (2) de la capsule (1), - chauffer ladite composition d'étanchéité appliquée (4) de telle sorte que la composition d'étanchéité migre au moins partiellement vers la paroi latérale (3a) jusqu'à ce qu'elle atteigne la paroi latérale, et vulcaniser la composition d'étanchéité (4) après la migration vers la paroi latérale (3a).

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