COMPOSITE SHEET AND METHOD FOR MANUFACTURING THE SAME

摘要

A composite sheet having an elastic layer and an inelastic layer and high breathability and a method for manufacturing such improved composite sheet. The composite sheet includes an elastic layer and an inelastic layer joined and laminated through a plurality of joints. The elastic layer is formed with first depressions overlapping the joints and extending in a transverse direction and first protrusions. Interior space if the first protrusions is filled with constituent fibers of the elastic layer. The inelastic layer is formed with second depressions overlapping the joints and extending in a longitudinal direction and second protrusions. Along the second depressions, the elastic layer and the inelastic layer come in contact with each other at the joints and, along the second protrusions, the inelastic layer is spaced from the elastic layer to define clearance gaps in these layers.

主权项

1. A composite sheet having a longitudinal direction and a transverse direction being orthogonal thereto and including an elastic layer defining one surface and being elastically stretchable and contractible at least in the transverse direction and an inelastic layer defining the other surface wherein the elastic layer and the inelastic layer are joined to each other, wherein:
the elastic layer and the inelastic layer are joined to each other at a plurality of joints spaced from each other in the longitudinal direction as well as in the transverse direction; the elastic layer has a plurality of first depressions overlapping the joints and extending in the transverse direction and a plurality of first protrusions being adjacent to the first depressions, respectively, and extending in the transverse direction; and the inelastic layer has a plurality of second depressions overlapping the joints and extending in the longitudinal direction and a plurality of second protrusions being adjacent to the second depressions, respectively, and extending in the longitudinal direction.