Package comprising a sealed contact area including a nonwoven having a bonded surface with an embossed impression pattern

Abstract

This invention relates to a wound roll of fibrous nonwoven sheet structure comprising fibrous material, the fibrous nonwoven sheet structure suitable for subsequent embossing, the sheet structure being gas permeable, and having a first surface and a second surface; the first surface being surface bonded such that the fibrous material on the first surface has been substantially consolidated and stabilized by heat and pressure, and the second surface being capable of accepting printing, wherein the second surface has a smooth surface free of any embossing; the sheet structure having a particle barrier penetration of below 10%, a Gurley Hill Porosity of 40 seconds or less, and a moisture vapor transport rate of 3500 g/m2/day or greater.

What is claimed is: 
     
         1 . A wound roll of fibrous nonwoven sheet structure comprising fibrous material, the fibrous nonwoven sheet structure suitable for subsequent embossing,
 the sheet structure being gas permeable, and having a first surface and a second surface;   the first surface being surface bonded such that the fibrous material on the first surface has been substantially consolidated and stabilized by heat and pressure, and   the second surface being capable of accepting printing, wherein the second surface has a smooth surface free of any embossing;   the sheet structure having a particle barrier penetration of below 10%, a Gurley Hill Porosity of 40 seconds or less, and a moisture vapor transport rate of 3500 g/m 2 /day or greater.   
     
     
         2 . The wound roll of fibrous nonwoven sheet structure of  claim 1  wherein the fibrous nonwoven sheet structure has a Gurley Hill Porosity of 10 seconds or less. 
     
     
         3 . The wound roll of fibrous nonwoven sheet structure of  claim 1  wherein the fibrous nonwoven sheet structure has a moisture vapor transport rate of 7500 g/m 2 /day or greater. 
     
     
         4 . The wound roll of fibrous nonwoven sheet structure of  claim 1  wherein the sheet structure is plexifilamentary. 
     
     
         5 . The wound roll of fibrous nonwoven sheet structure of  claim 1 , wherein the fibrous nonwoven sheet structure comprises a flash spun nonwoven sheet structure. 
     
     
         6 . The wound roll of fibrous nonwoven sheet structure of  claim 1 , wherein the fibrous material is a thermoplastic polymer. 
     
     
         7 . The wound roll of fibrous nonwoven sheet structure of  claim 1 , wherein the fibrous material is free of added binder. 
     
     
         8 . The wound roll of fibrous nonwoven sheet structure of  claim 1 , wherein the fibrous material is polyethylene, polypropylene, polymethylpentene, polybutylene, or combinations thereof. 
     
     
         9 . The wound roll of fibrous nonwoven sheet structure of  claim 8 , wherein the fibrous material is polyethylene. 
     
     
         10 . The wound roll of fibrous nonwoven sheet structure of  claim 8 , wherein the fibrous material is a high density polyethylene having an upper limit of melting range of about 130.0 to 137.0° C., a density in the range of 0.94 to 0.98 g/cm 3  and a melt index of between 0.1 to 100, preferably between 0.1 and 4.