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.
申请公布号
EP2596923(A1)
申请公布日期
2013.05.29
申请号
EP20130154933
申请日期
2010.02.02
申请人
THE PROCTER & GAMBLE COMPANY
发明人
GIBSON, FREDERICK 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