Patent ID: 6613260
Filing Date: 2003-09-02
Classification: B32B

Abstract:
A process for making an elastically stretchable composite sheet which comprises the steps of:providing a composite sheet comprising an elastically stretchable web having upper and lower surfaces and being continuous in one direction and an inelastically stretchable web made of stretchable continuous fibers and being continuous in said one direction, said inelastically stretchable web being bonded to at least one of said upper and lower surfaces of said elastically stretchable web; continuously feeding said composite sheet to at least two nip roller pairs which rotate at peripheral speeds that increase along a direction in which the composite sheet moves; and bringing the composite sheet into contact with peripheral surfaces of each of the nip roller pairs so that, of at least one roller of each roller pair, said composite web is brought into contact therewith over at least an area of its peripheral surface defined by a quadrant of its circular cross section until said composite web is stretched a predetermined amount.