METHOD OF FORMING AN IMPROVED SUPPORT MEMBER FOR A FABRIC AND FILM FORMING DEVICE

摘要

The present invention is directed to a topographical support member (2) which is useful for producing nonwoven fabrics or apertured plastic films. The topographical support member (2) is a rotatable hollow cylindrical tube having a substantially smooth surface (3) and plurality of apertures (7) therethrough. A substantial portion of the surface (3) of the topograhical support member (2) has an ion beam deposited coating (10), the coating being highly adherent and exhibiting improved wear resistance relative to uncoated topographical support surfaces. The coating layer (10) is deposited on the support member (2) by a beam of ions containing two or more of the elements of C, Si, H, O, N or subgroups of these elements.