Method of decorating multi-layered plastic tubes

Details Method of decorating multi-layered plastic tubes Method of decorating multi-layered plastic tubes

B - Operations, Transporting

32

B

B32B 1/08 (2006.01) B29C 59/04 (2006.01) B29D 23/20 (2006.01)

Patent

CA 2210317

A decorative feature is formed in the side wall of a longitudinally stretched, extruded, thermoplastic tube comprised of at least two different thermoplastic layers by heating a selected portion of an outer layer of the tube to a temperature sufficient to soften and allow displacement of sections of the outer layer without causing substantial deformation of an adhered layer. The heating is by contact with a hot fluid or a heated die and the displacement of the section of the outer layer by contact with a die.

Élément décoratif formé sur la paroi latérale d'un tube thermoplastique allongé et extrudé, comprenant au moins deux différentes couches thermoplastiques. La méthode consiste à chauffer une partie sélectionnée de la couche extérieure du tube à une température suffisante pour ramollir des sections de la couche extérieure et permettre leur déplacement sans provoquer de déformation notable de la couche adhésive. Le chauffage se fait par contact avec un liquide chaud ou une matrice chaude, tandis que la section de la couche extérieure se déplace par contact avec une matrice.

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