Spunbonded nonwoven fabric-laminated multilayer structure

Abstract

An object of the invention is to provide a spunbonded nonwoven fabric which has excellent flexibility, feel to the touch, forming properties and productivity without deteriorating the stretchability of a spunbonded nonwoven fabric containing a low crystalline polypropylene. A spunbonded nonwoven fabric-laminated multilayer structure of the invention includes an elastic nonwoven fabric which contains a low crystalline polypropylene satisfying (a) to (f) and an extensible spunbonded nonwoven fabric having an elongation at maximum load of not less than 50% in at least one direction, the extensible spunbonded nonwoven fabric being laminated on at least one surface of the elastic nonwoven fabric: (a) [mmmm]=20 to 60 mol %, (b) [rrrr]/(1−[mmmm])≦0.1, (c) [rmrm]>2.5 mol %, (d) [mm]×[rr]/[mr]2≦2.0, (e) mass average molecular weight (Mw)=10,000 to 200,000, (f) molecular weight distribution (Mw/Mn)<4.

Dependencies are inferred from the claim text.