Patent ID: 6313372
Filing Date: 2001-11-06
Classification: A61F,B32B,Y10T

Abstract:
A stretch activated elastic composite comprising:a first non-woven fabric sheet adapted to be elongated by more than 100% in one direction; anda first elastically recoverable, elastic sheet;said first elastic sheet in its unstretched state being bonded at securement regions to one surface of said first non-woven fabric sheet in its unelongated state;said elastic composite before stress activation having, per unit width of 5 cm, when stretched in said one direction (1) a stress of lower than 1000 g at 30% stretch, (2) a stress of higher than 400 g at 100% stretch, (3) a breaking point of higher than 400 g, and (4) an elastic limit of higher than 200%,said elastic composite after stress activation by being stretched to an elongation of less than 200% having, per unit width of 5 cm, (1) a stress of lower than 500 g at 30% stretch and (2) a stress of higher than 100 g at 100% stretch, andsaid elastic composite after three repeated cycles of 150% stretching and relaxing having an elastic recovery rate of higher than 60% when measured based on JIS standards.