Methods of and apparatus for sealing zipper to a substrate

Details Methods of and apparatus for sealing zipper to a substrate Methods of and apparatus for sealing zipper to a substrate

B - Operations, Transporting

31

B

B31B 19/90 (2006.01) B31B 19/64 (2006.01) B65D 33/25 (2006.01)

Patent

CA 2384760

A reclosabe fastener (10) comprising a two--part body and a single flange (16) is located between two webs (34) of material from which a bag is to be made on a form-fill-seal machine. The combination passes between sealingjaws (44) to seal the webs to the fastener at thickened zones (30) at the margins of the body. By making the body compact, and by using sealing jaws (44) which are longer than the body. The webs (34) form around the ends of the fastener body.

L'invention concerne une organe de fermeture réutilisable (10) composé d'un corps présentant deux parties et d'une seule bride (16) placée entre deux lés (34) de matériau qui serviront à concevoir un sac sur une formeuse-remplisseuse-scelleuse. Cette combinaison passe entre des mors de fermeture de scellage (44) permettant de sceller les lés à l'organe de fermeture sur des zones plus épaisses (30) situées aux marges du corps. En fabriquant le corps de manière compacte et en utilisant des mors de fermeture étanche (44) plus longs que le corps, les lés (34) se forment autour des extrémités du corps de l'organe de fermeture.

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