Invention Grant
- Patent Title: Device and method for longitudinally stretching a film web
- Patent Title (中): 用于纵向拉伸薄膜网的装置和方法
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Application No.: US13509090Application Date: 2010-11-02
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Publication No.: US09333699B2Publication Date: 2016-05-10
- Inventor: Juergen Linkies
- Applicant: Juergen Linkies
- Applicant Address: DE Lengerich
- Assignee: WINDMOELLER & HOELSCHER KG
- Current Assignee: WINDMOELLER & HOELSCHER KG
- Current Assignee Address: DE Lengerich
- Agency: Jacobson Holman, PLLC.
- Priority: DE102009046585 20091110
- International Application: PCT/EP2010/066646 WO 20101102
- International Announcement: WO2011/057918 WO 20110519
- Main IPC: B29C55/26
- IPC: B29C55/26 ; B29C55/06

Abstract:
An apparatus for the longitudinal stretching of a film web includes at least one heater in which the film web can be heated, at least one cooling device in which the film web can be cooled, and at least a stretching unit in which the film web is stretched in its longitudinal direction. The stretching unit has a first transport roller having a first peripheral speed in the stretching operation, followed by a second transport roller having a second peripheral speed along the transport path of the film web from the first transport roller, with the second peripheral speed being greater than the first transport roller speed. The apparatus includes a pressing device with which the film web is pressed against the first transport roller along a line which is in the area of the release line of the film web from the first transport roller.
Public/Granted literature
- US20120292818A1 DEVICE AND METHOD FOR LONGITUDINALLY STRETCHING A FILM WEB Public/Granted day:2012-11-22
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