Fluid impervious zero strain stretch laminate web

Details Fluid impervious zero strain stretch laminate web Fluid impervious zero strain stretch laminate web

A - Human Necessities

61

F

A61F 13/15 (2006.01)

Patent

CA 2192557

A fluid impervious "zero strain" stretch laminate web having a fluid impervious elastic member substantially continuously secured to a substantially untensioned nonwoven member. The nonwoven member is elongatable but exhibits less elastic recovery than said elastic member. The laminate web has an original unstretched length. The nonwoven member and the elastic member stretch but do not rupture when subjected to a mechanical stretching operation which stretches said laminate web to at least 50 % of its original unstretched length.

Bande stratifiée extensible à "tension zéro", imperméable aux fluides, comprenant un élément élastique imperméable aux fluides, fixé de façon sensiblement continue à un élément non tissé exempt de tension. Cet élément non tissé est susceptible d'être allongé mais il possède moins d'élasticité pour revenir à son état original que ledit élément élastique. La bande stratifiée comporte une longueur originelle non étirée. L'élément non tissé ainsi que l'élément élastique peuvent être étirés mais ne se rompent pas lorsqu'on les soumet à une opération d'étirage mécanique consistant à étirer la bande stratifiée d'au moins 50 % de sa longueur originelle non étirée.

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