Bulky sheet material having three-dimensional protrusions

摘要

A bulky sheet material having three-dimensional protrusions (10) is disclosed. The sheet material comprises a first layer(1)and a second layer(2)adjacent to the first layer (1). The first layer(1)and the second layer(2)is partly joined together at joints(3)in a prescribed pattern. The first layer(1) has a number of raised portions which are located among the joints (3). The second layer (2) comprises a material which exhibits elastomeric behavior. The bulky sheet material (10) exhibits elastomeric behavior as a whole and breathability.