Elastically stretchable composite sheet and process for making the same
AssigneeUni-Charm Corporation
InventorHiroyuki Ohata
Life of this patent
Estimating the term…
Abstract
An elastically stretchable composite sheet includes an elastic layer and an inelastic layer formed with stretchable fibers having a relatively small diameter and bonded to at least one surface of the elastic layer. In the inelastic layer bonded to the elastic layer is formed with thermoplastic synthetic fiber, at least 80% by weight of stretchable fibers includes thermoplastic synthetic fiber containing lubricant of 0.1˜5.0% by weight.
Claims7
An elastically stretchable composite sheet comprising an elastic layer, said elastic layer being elastically stretchable at least in one direction, and an inelastic layer of fibers, said inelastic layer being inelastically stretchable in said one direction and bonded to least on one surface of said elastic layer, and at least 80% by weight of said fiber comprising thermoplastic synthetic fiber which contains lubricant of 0.1˜5.0% by weight.
A process for making an elastically stretchable composite sheet comprising the steps of feeding an elastic web which is elastically stretchable at least in one direction, placing an inelastically stretchable fibrous layer upon at least one surface of said elastic web and intermittently bonding these both webs to each other in said one direction, said process further comprising:
- at least 80% by weight of said fiber comprises thermoplastic synthetic fiber containing lubricant of 0.1˜5.0% by weight.
Dependencies are inferred from the claim text.