Laminates with bonded webs

摘要

Laminates with a layer of bonded nonwoven material attached to a layer of film.

主权项

1. A laminate comprising a layer of nonwoven material attached to a layer of film, wherein:
the layer of nonwoven material comprises filaments of a first polymer and a second polymer; the first polymer has a first melt temperature, and the second polymer has a second melt temperature, wherein the second melt temperature is higher than the first melt temperature, and wherein the first polymer and the second polymer form a multicomponent filament wherein in cross section two distinct identifiable areas extending continuously along the length of the filament are present; the layer of nonwoven material is thermally bonded; the layer of nonwoven material has a machine direction and a cross direction; the layer of nonwoven material has:
a neckdown modulus in the cross direction that is greater than or equal to 1000 N/m and less than or equal to 3000 N/m;a tensile strength in the cross direction that is less than or equal to 4 N/cm; andan extensibility in the cross direction that is greater than or equal to 80% and less than or equal to 300%.