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US 2003/0070744 A1Published application
Composite sheet and process for making the same
AssigneeUni-Charm Corporation
InventorsSatoru Tange, Hiroyuki Ohata
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AssigneeUni-Charm Corporation
InventorsSatoru Tange, Hiroyuki Ohata
Estimating the term…
This invention aims to provide a composite sheet having a layer of inelastically stretchable continuous fibers improved so that a possible unevenness in fiber diameter may be minimized. A composite sheet comprises an elastically stretchable layer and an inelastically stretchable layer formed with inelastically stretchable continuous fibers bonded to at least one surface of the elastically stretchable layer intermittently in one direction. The continuous fibers are oriented substantially in one direction thereof so that the composite sheet may present a ratio S1/S2 of 3.0 or higher where S1 represents a tensile strength in this one direction and S2 represents a tensile strength in the direction orthogonal to this one direction.
A composite sheet comprising an elastically stretchable layer having upper and lower surfaces and an inelastically stretchable fibrous layer formed with stically stretchable continuous fibers, these two layers being bonded together intermittently in first and second directions orthogonal to each other, at least, in said first direction, said composite sheet being characterized by that:
A process for making said composite sheet by bonding an elastically stretchable layer having upper and lower surfaces and an inelastically stretchable fibrous layer formed by inelastically stretchable continuous fibers put on at least one of the upper and lower surfaces to each other intermittently in first and second directions orthogonal to each other, at least, in said first direction, said process being characterized by that:
Dependencies are inferred from the claim text.