B - Operations – Transporting – 31 – C
Patent
B - Operations, Transporting
31
C
B31C 3/00 (2006.01)
Patent
CA 2530002
Spiral wound tubes (20) may be formed utilizing the method and apparatuses (100) described herein. The method includes providing a mandrel (110) and a web material (10) having a first overlap region (14) and a second overlap region (18). A binding agent (30) is applied to at least one of the overlap regions. The mandrel (110) is wrapped with the web material (10) such that the second overlap region (18) covers the first overlap region (14) of the previously wound web and the binding agent (30) is disposed between the previously wound first overlap region and the currently wound second overlap region. The spiral wound tubes (20) of the invention demonstrate improved axial crush resistance.
L'invention concerne des tubes spiralés (20) obtenus selon le procédé et l'appareil (100) décrits. Selon ce procédé, on prend un mandrin (110) et une matière bande (10) présentant une première zone de chevauchement (14) et une deuxième zone de chevauchement (18). Un agent de liaison (30) est appliqué sur au moins une zone de chevauchement. On enroule la matière bande (10) sur le mandrin (110) de telle manière que la deuxième zone de chevauchement (18) recouvre la première zone de chevauchement (14) de la bande précédemment enroulée et l'agent de liaison (30) est appliqué entre la première zone de chevauchement précédemment enroulée et la deuxième zone de chevauchement en cours d'enroulement. Les tubes spiralés (20) de l'invention offrent une résistance à l'écrasement axial améliorée.
Dimock Stratton Llp
The Procter & Gamble Company
LandOfFree
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