Stretched mechanical fastening web laminate

Abstract

A stretched mechanical fastening web laminate having a thermoplastic web layer with two major surfaces is disclosed. One of the major surfaces bears a multitude of male fastening elements suitable for engagement with a corresponding female fastening material, and on its other major surface is a fibrous nonwoven web layer. The stretched mechanical fastening web laminate is stretched to provide a basis weight of less than 100 g/m 2 .

1 . A stretched mechanical fastening web laminate comprising a thermoplastic web layer having two major surfaces, a first major surface bearing a multitude of male fastening elements suitable for engagement with a corresponding female fastening material, with a fibrous nonwoven web layer on its second major surface, the stretched mechanical fastening web laminate having been stretched to provide a basis weight of less than 100 g/m 2 . 
     
     
         2 . A stretched mechanical fastening web laminate according to  claim 1 , wherein the fibrous nonwoven web layer is continuous laminated to the second major surface of the thermoplastic web layer. 
     
     
         3 . A stretched mechanical fastening web laminate according to  claim 1  having a density of the male fastening elements of between 1 and 2,500 per cm 2 . 
     
     
         4 . A stretched mechanical fastening web laminate according to  claim 1 , wherein the thermoplastic web layer has a thickness of between 5 and 25 μm. 
     
     
         5 . A stretched mechanical fastening web laminate according to  claim 1  having a tensile strength in a machine direction as measured according to DIN EN ISO 527 of at least 15 N/25 mm. 
     
     
         6 . A stretched mechanical fastening web laminate according to  claim 1 , wherein the fibrous nonwoven web layer comprised in the stretched mechanical fastening laminate has a basis weight of from 1 to 30 g/m 2 . 
     
     
         7 . A stretched mechanical fastening web laminate according to  claim 1 , having been monoaxially stretched. 
     
     
         8 . A stretched mechanical fastening web laminate according to  claim 1 , having been biaxially stretched. 
     
     
         9 . A stretched mechanical fastening web laminate according to  claim 1 , wherein the stretched mechanical fastening web laminate exhibits a tensile strength at break that is higher than a tensile strength at break of a comparable thermoplastic web layer having a basis weight and a stretch ratio that are the same as the basis weight and stretch ratio of the stretched mechanical fastening web laminate. 
     
     
         10 . The method according to  claim 9 , wherein the tensile strength at break of the stretched mechanical fastening web laminate is at least 10 percent higher than the tensile strength of the comparable thermoplastic web layer. 
     
     
         11 . A stretched mechanical fastening web laminate according to  claim 1 , wherein the fibrous nonwoven web layer is free of staple fibers. 
     
     
         12 . A disposable absorbent article comprising a portion of the stretched mechanical fastening web laminate of  claim 11 . 
     
     
         13 . A disposable absorbent article according to  claim 12 , wherein the male fastening elements are exposed and the fibrous web layer is not exposed. 
     
     
         14 . A stretched mechanical fastening web laminate according to  claim 11 , wherein the fibrous nonwoven web layer is a spunbond or melt blown nonwoven material. 
     
     
         15 . A disposable absorbent article comprising a portion of the stretched mechanical fastening web laminate of  claim 14 . 
     
     
         16 . A disposable absorbent article according to  claim 15 , wherein the male fastening elements are exposed and the fibrous web layer is not exposed. 
     
     
         17 . A disposable absorbent article comprising a portion of the stretched mechanical fastening web laminate of  claim 2 . 
     
     
         18 . A disposable absorbent article according to  claim 17 , wherein the male fastening elements are exposed and the fibrous web layer is not exposed. 
     
     
         19 . A disposable absorbent article comprising a portion of the stretched mechanical fastening web laminate of  claim 1 . 
     
     
         20 . A disposable absorbent article according to  claim 19 , wherein the male fastening elements are exposed and the fibrous web layer is not exposed.