Patent ID: 6069097
Filing Date: 2000-05-30
Classification: A61F,B32B,D04H,Y10T

Abstract:
A composite elastic material having a multiple-stage elongation property comprising:a non-woven fabric which is stretchable along at least one direction and has a break-down elasticity along said direction of about 100% or more; anda sheet-like elastic member having an elastic recovery of about 60% or more and a break-down elasticity of about 200% or more;said non-woven fabric and said elastic member being secured together at a plurality of points to form a composite elastic material having a first stress lowering point caused by changes of structure of said non-woven fabric while being stretched along said direction, and a second stress lowering point occurring at an elongation larger than that of said first stress lowering point caused by a break-down of said sheet-like elastic member.