B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 7/01 (2006.01) B29C 55/18 (2006.01)
Patent
CA 2329794
The present invention is a web material which can be used in the production of large quantities of articles which are assembled from, inter alia, continuously fed web materials. In particular, the web material of the present invention can be expanded by a predetermined amount whilst exhibiting a relatively low resistance to expansion. This material property is assessed in the Discontinuous Expansion Test which determines the Relative Expansion Tension reduction during the discontinuous expansion. A web material according to the present invention has a Relative Expansion Tension Reduction of at least 50 %. Another object of the present invention is the process for making such discontinuously expandable web materials comprising the step of incorporating longitudinal expansion means and optionally tearable expansion obstruction means into the web material.
La présente invention concerne un matériau en bande pouvant être utilisé pour la production de grandes quantités d'articles assemblés à partir, inter alia, de matériaux en bande acheminés en continu. En particulier, le matériau en bande de l'invention peut être allongé selon un pourcentage d'allongement préétabli tout en montrant une résistance relativement faible à l'allongement. Les propriétés du matériau sont évaluées au moyen d'un test d'allongement discontinu qui détermine la réduction de la tension d'allongement relative. Le matériau en bande de l'invention présente une réduction de la tension d'allongement relative d'au moins 50 %. L'invention concerne en outre un procédé de fabrication de tels matériaux en bande étirable discontinue, qui consiste à incorporer dans ledit matériau un moyen d'allongement longitudinal et, éventuellement, un moyen de blocage d'allongement déchirable.
Busam Ludwig
Divo Michael
Fuchs Christofer
Sim & Mcburney
The Procter & Gamble Company
LandOfFree
Discontinuously expandable web materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Discontinuously expandable web materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discontinuously expandable web materials will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1487802