Method of forming an improved support member for a fabric and film forming device
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United States of America Patent
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Mar 18, 2003
Grant Date -
N/A
app pub date -
Oct 20, 1999
filing date -
Oct 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is directed to a topographical support member which is useful for-producing nonwoven fabrics or apertured plastic films. The topographical support member is a rotatable hollow cylindrical tube having a substantially smooth surface and plurality of apertures therethrough. A substantial portion of the surface of the topographical support member has an ion beam deposited coating, the coating being highly adherent and exhibiting improved wear resistance relative to uncoated topographical support surfaces. The coating layer is deposited on the support member by a beam of ions containing two or more of the elements of C, Si, H, O, or N.
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