Extensible composite nonwoven fabrics

A nonwoven fabric according to 22, wherein said blend comprises propylene polymer, polyethylene, and at least one additional miscible or partially miscible polymer.

A composite nonwoven fabric comprising a coherent nonwoven extensible spunbonded web of randomly arranged substantially continuous filaments formed from a blend of 5 to 50 percent by weight propylene polymer and 50 to 95 percent by weight polyethylene, said coherent extensible nonwoven web having a Taber surface abrasion value (rubber wheel) of greater than 10 cycles and an elongation at peak load in at least one of the machine direction or the cross-machine direction of at least 70 percent, an additional extensible layer, and an adhesive disposed between said coherent extensible spunbond web and said additional extensible layer, said adhesive assisting in the connectivity between the spunbond web and the extensible layer.

A composite nonwoven fabric comprising a coherent nonwoven extensible spunbonded web of randomly arranged substantially continuous filaments formed from a blend of 85 to 99 percent by weight propylene polymer and 1 to 15 percent by weight polyethylene, said coherent extensible nonwoven web having a Taber surface abrasion value (rubber wheel) of greater than 10 cycles and an elongation at peak load in at least one of the machine direction or the cross-machine direction of at least 70 percent, an additional extensible layer, and an adhesive disposed between said coherent extensible spunbond web and said additional extensible layer, said adhesive assisting in the connectivity between the spunbond web and the extensible layer.

A composite nonwoven fabric comprising a coherent nonwoven extensible spunbonded web of randomly arranged substantially continuous filaments formed from a blend of 65 to 80 percent by weight isotactic polypropylene, 15 to 30 percent by weight of a polymer miscible or partially miscible with isotactic polypropylene, and 1 to 5 percent by weight polyethylene, an additional extensible layer, said coherent extensible nonwoven web having a Taber surface abrasion value (rubber wheel) of greater than 10 cycles and an elongation at peak load in at least one of the machine direction or the cross-machine direction of at least 70 percent, and an adhesive disposed between said coherent extensible spunbond web and said additional extensible layer, said adhesive assisting in the connectivity between the spunbond web and the extensible layer.

A composite nonwoven fabric comprising a coherent nonwoven extensible spunbonded web of randomly arranged substantially continuous filaments formed from bicomponent or multicomponent filaments, said coherent extensible nonwoven web having a Taber surface abrasion value (rubber wheel) of greater than 10 cycles and an elongation at peak load in at least one of the machine direction or the cross-machine direction of at least 70 percent, an additional extensible layer, and an adhesive disposed between said coherent extensible spunbond web and said additional extensible layer, said adhesive assisting in the connectivity between the spunbond web and the extensible layer.

A disposable diaper comprising the composite nonwoven fabric of any claim.

A nonwoven fabric comprising at least one layer containing multipolymer fibers bonded by a plurality of bonds to form a coherent extensible nonwoven web, said coherent extensible nonwoven web having a Taber surface abrasion value (rubber wheel) of greater than 10 cycles and an elongation at peak load in at least one of the machine direction or the cross-machine direction of at least 70 percent, and said multipolymer fibers comprising a blend of at least two polymers which are immiscible with one another and at least one additional polymer which is miscible or partially miscible with said immiscible polymers.

A nonwoven fabric comprising at least one layer containing multipolymer fibers bonded by a plurality of bonds to form a coherent extensible nonwoven web, and said multipolymer fibers comprising a blend of at least 50% isotactic polypropylene, 1 to 10% polyethylene, and 10 to 40% of a block or grafted polyolefin copolymer or terpolymer which is miscible or partially miscible with said polypropylene and said polyethylene.

A fiber useful for forming a nonwoven fabric, said fiber comprising a blend of at least 50% isotactic polypropylene, 1 to 10% polyethylene, and 10 to 40% of a block or grafted polyolefin copolymer or terpolymer which is miscible or partially miscible with said polypropylene and said polyethylene.