Method for producing a fixing closure element

Details Method for producing a fixing closure element Method for producing a fixing closure element

A - Human Necessities

44

B

A44B 18/00 (2006.01) B29C 43/22 (2006.01) B29C 33/42 (2006.01)

Patent

CA 2335979

The invention relates to a method for producing a fixing closure element comprising a plurality of interlocking means which are configured with a support (17) as one piece. According to the inventive method, a thermoplastic material is fed to the slit between a pressure tool (3) and a shaping tool (5). A sieve (11) comprising continuous cavities is used as a shaping element on the shaping tool (5). The interlocking means are formed such that the thermoplastic material is at least partially hardened in the cavities of the sieve (11). A shaping tool which comprises a second shaping element (11), said element interacting with the cavities of the sieve, is used on the side of the sieve (13) facing away from the pressure tool (3). The thermoplastic material is shaped using said second shaping element.

L'invention concerne un procédé permettant de produire un élément de fermeture par accrochage par contact, comportant une pluralité d'éléments d'accrochage formés d'un seul tenant avec un support (17). Selon ce procédé, un matériau thermoplastique est acheminé jusqu'à la fente située entre un outil de compression (3) et un outil de moulage (5). L'élément de formage utilisé sur l'outil de moulage (5) est un tamis (11) présentant des cavités traversantes. Les éléments d'accrochage résultent du fait que le matériau thermoplastique est durci au moins en partie dans les cavités du tamis (11). L'outil de moulage est tel que sur la face du tamis (11) opposée à l'outil de compression (3), il est prévu un second élément de formage (13) coopérant avec les cavités dudit tamis, grâce auquel le matériau thermoplastique est moulé.

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