Tampon having apertured film cover thermobonded to fibrous absorbent structure

Abstract

A tampon having an absorbent structure and an apertured film cover thermally bonded to the absorbent structure is disclosed. The cover is bonded to the absorbent structure through a plurality of discrete spots arranged about the surface of the absorbent structure to provide a cumulative cover-to-absorbent bond. The cumulative cover-to-absorbent bond has a shear strength of at least about 3 N. The plurality of discrete thermally-bonded spots define a bonded area and the bonded spots and the unbonded portions between the spots define a bond region. Preferably, the bonded area covers about 5% to about 30% of the bond region. In addition, a sealing element for a sealing roller is disclosed. The sealing element is profiled with a sealing pattern defined by sealing knobs arranged at distances to each other that project from a base of the sealing element. Each sealing knob has a perimeter shaped to eliminate aggressive edges.

1 - 8 . (Cancel)  
     
     
         9 . A sealing element for a sealing roller, the sealing element profiled with a sealing pattern, wherein the sealing pattern is defined by sealing knobs arranged at distances to each other that project from a base of the sealing element, each sealing knob having a perimeter shaped to eliminate aggressive edges.  
     
     
         10 . A sealing element of  claim 9  wherein the perimeter of a sealing element is radiused.  
     
     
         11 . A sealing element of  claim 9  wherein the perimeter of a sealing element is defined by an angle from greater than 180° to about 240°.  
     
     
         12 . A sealing element of  claim 9  wherein the sealing knobs have a substantially spherical form.  
     
     
         13 . A sealing element of  claim 9  wherein the sealing knobs have a substantially spherical segment form.  
     
     
         14 . A sealing element of  claim 9  wherein the sealing knobs are substantially ellipsoid-segmentally shaped.  
     
     
         15 . A sealing element of  claim 9  wherein the sealing knobs are positioned on the sealing elements in rows arranged transversely at distances to each other.  
     
     
         16 . A sealing element of  claim 9  wherein the sealing knobs project at least 3 mm from the base of the sealing element.  
     
     
         17 . A sealing element of  claim 9  which further comprises an insulating material adjacent the sealing knobs.  
     
     
         18 . A sealing element of  claim 17  wherein the sealing knobs project at least 1 mm from the insulating material.  
     
     
         19 . A sealing element of  claim 9  wherein a front end the direction of rotation of the sealing element is provided with sealing knobs at least at its margins and corners.  
     
     
         20 . A sealing element of  claim 9  wherein the sealing knobs cover about 5% to about 30% of the planar surface area of the sealing element.  
     
     
         21 - 22  (Cancel)  
     
     
         23 . The sealing element of  claim 9  wherein the sealing knobs have a sealing surface area of less than about 40 mm 2 .