GIBSON FREDRICK WILLIAM,ARORA KELYN ANNE,HAMMONS JOHN LEE,BROYLES NORMAN SCOTT,ORR JILL MARLENE,MULLANE TIMOTHY IAN,CURRO JOHN JOSEPH,MCAFFRY KAREN DENISE,O DONNELL HUGH JOSEPH
申请号：
IN5752/DELNP/2011
公开号：
IN2011DN05752A
申请日:
2011.07.27
申请国别(地区):
IN
年份:
2012
代理人:
摘要：
A method for making apertures in a precursor web using a forming apparatus is provided where the web comprises a film having molecular orientation and the forming apparatus comprises an arrangement of teeth. The orientation of the arrangement of teeth and the molecular orientation of the film are predetermined and modified to provide a relative angle between the orientation of the teeth and the molecular orientation of the film. Apertures formed in the precursor web material have a length and width exhibiting a minimal aspect ratio.
