Invention Grant
- Patent Title: Method for perforating nonwoven fabric
- Patent Title (中): 无纺布穿孔方法
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Application No.: US11671185Application Date: 2007-02-05
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Publication No.: US08088316B2Publication Date: 2012-01-03
- Inventor: Mathias Muth , Indra Roy , Ralf Sodemann
- Applicant: Mathias Muth , Indra Roy , Ralf Sodemann
- Applicant Address: DE Peine
- Assignee: Fiberweb Corovin GmbH
- Current Assignee: Fiberweb Corovin GmbH
- Current Assignee Address: DE Peine
- Agency: Alston & Bird LLP
- Priority: DE20121445U 20010703
- Main IPC: B28B1/48
- IPC: B28B1/48 ; B32B3/10 ; D04H3/08

Abstract:
The present invention relates to the perforation of nonwovens with a perforating roll and an opposing roll. The perforating roll and opposing roll form a gap, through which a nonwoven being perforated, is guided and perforated. The perforation apparatus comprises a feed device and a withdrawal device. The feed device is arranged such that the nonwoven being perforated advances first onto the opposing roll, before it enters the gap. The withdrawal device is arranged such that after leaving the gap, the perforated nonwoven remains on the perforating roll. Furthermore, a perforation method and a corresponding nonwoven structure are provided.
Public/Granted literature
- US20080014408A1 METHOD FOR PERFORATING NONWOVEN FABRIC Public/Granted day:2008-01-17
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