초록

An elastic laminated sheet of an incrementally stretched nonwoven fibrous web and elastomeric film and method of making are disclosed. The elastic laminates are especially useful in diapers, surgical gowns, sheets, dressings, hygienic products and the like.

대표청구항 ▼

[ What is claimed is:] [1.] A method of making an elastic laminated sheet of a nonwoven fibrous web and an elastomeric film comprisingintroducing a nonwoven fibrous web and an elastomeric film into a bonding station,controlling the compressive force between said web and film at the bonding station t

[ What is claimed is:] [1.] A method of making an elastic laminated sheet of a nonwoven fibrous web and an elastomeric film comprisingintroducing a nonwoven fibrous web and an elastomeric film into a bonding station,controlling the compressive force between said web and film at the bonding station to bond a surface of the web to said film to form a laminated sheet, said laminated film being elastic and having an original shape, said web being totally bonded to said laminated elastic film,applying an incremental stretching force to said laminated sheet along lines substantially uniformly and completely across the laminated sheet and throughout its depth to stretch the web and said film,removing said stretching force from the laminated sheet whereby said elastic film substantially recovers its shape and fibers of said web are thereby caused to extend outwardly from said bonded web surface to give loft to said laminated sheet, said laminated sheet being stretchable and recoverable without delamination of the web from the film, said laminated sheet having a permanent set after being stretched at 50% of its original shape of no more than about 10%.