Apertured three-dimensional product in membrane or film form for covering sanitary, disposable absorbent products

摘要

There is described a three-dimensional membrane generally of a thin plastic film which has apertures therein created by simultaneously perforating the film and pushing the material from the holes to one side of the apertures and piling it up to create an overall membrane thickness which is at least 10 times the original thickness of the film. It has particular application as a topsheet for sanitary napkins and the like.