Stretch-activated elastic composite

A stretch-activated elastic composite comprising:

• a first non-woven fabric having a potential elongatability of higher than 100% in one direction;
• and
• a first elastically recoverable, elastic sheet;
• said first elastic sheet in its unstretched state being bonded to at least one surface of said first non-woven fabric in its unelongated state at securement points,
• said first elastic composite before stress activation having, per unit width of 5 cm, (1) a stress of lower than 800 g at 30% stretch, (2) a stress of higher than 600 g at 100% stretch, (3) a breaking point of higher than 400 g, and (4) an elastic limit of higher than 200%,
• said first elastic composite after stress activation by being stretched at a rate of lower than 200% having, per unit width of 5 cm, (1) a stress of lower than 300 g at 30% stretch and (2) a stress of higher than 200 g at 100% stretch, and
• said first 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.

A stretch-activated elastic composite comprising:

• a non-woven fabric sheet adapted to be elongated by more than 100% in one direction;
• and
• an elastic sheet having an elastic recovery rate of higher than 60% and an elastic limit of higher than 200%;
• said elastic sheet in its unstretched state being bonded at securement regions to one surface of said 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, and
• said 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.