Multilayer non-woven fabric and use thereof

Abstract

A multilayer non woven fabric having a polypropylene spun bonded non woven fabric and a polypropylene melt blown non woven fabric, characterized in that it has a bending resistance, the sum of the values for longitudinal and transverse directions as measured according to JIS L 1096 6. 19.1 A method (45 degree cantilever method) of 70 to 120 mm, the surface of the spun bonded non woven fabric has a static friction coefficient of 0.1 to 0.4. The multilayer non woven fabric preferably has a polypropylene melt brown non woven fabric layer between polypropylene spun bonded non woven fabric layers.

1 . A multi layer non woven fabric having a polypropylene based resin spun bonded non woven fabric and a polypropylene based resin melt blown non woven fabric, characterized in that it has a bending resistance [the sum of the values for longitudinal and transverse directions as measured according to JIS L 1096 6. 19.1 A method (45° cantilever method)] of 70 to 120 mm, and the surface of the spun bonded non woven fabric has a static friction coefficient of 0.1 to 0.4.  
     
     
         2 . The multi layer non woven fabric according to  claim 1  wherein the multi layer non woven fabric has a polypropylene based resin melt blown non woven fabric between propylene based resin spun bonded non woven fabrics.  
     
     
         3 . The multi layer non woven fabric according to  claim 1  or  2  wherein the spun bonded non woven fabric has an average fiber diameter of 10 to 30 μm and the mass per unit area of the multi layer non woven fabric is from 10 to 50 g/m 2 .  
     
     
         4 . The multi layer non woven fabric according to any of  claims 1  to  3  wherein the spun bonded non woven fabric contains a lubricant in an amount of 0.05 to 1.0% by weight.  
     
     
         5 . The multi layer non woven fabric according to any of  claims 1  to  4  wherein the lubricant is a fatty amide compound.  
     
     
         6 . An absorptive article obtained by using the multi layer non woven fabric according to any of  claims 1  to  5 .  
     
     
         7 . A medical sheet obtained by using the multi layer non woven fabric according to any of  claims 1  to  5 .  
     
     
         8 . A powder wrapping material obtained by using the multi layer non woven fabric according to any of  claims 1  to  5 .