Elastically stretchable composite sheet and process for making the same

摘要

A sheet-like fibrous assembly 2 having an inelastic stretchability is intermittently joined to at least one surface of an elastically stretchable sheet 3. The elastic sheet 3 is elastically stretchable at least 80 % in one direction and the fibrous assembly 2 is curved between each pair of binding spots 4 adjacent to each other on the elastic sheet 3 so as to be stretchable in the one direction and comprises ethylene/propylene copolymer, ethylene/propylene/butene copolymer or a mixture of two or more of these copolymers at 100 - 10 % by weight.