Invention Grant
- Patent Title: Film transfer device
- Patent Title (中): 胶片转印装置
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Application No.: US13099732Application Date: 2011-05-03
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Publication No.: US08794145B2Publication Date: 2014-08-05
- Inventor: Alexander Weber
- Applicant: Alexander Weber
- Applicant Address: DE Heidelberg
- Assignee: Heidelberger Druckmaschinen AG
- Current Assignee: Heidelberger Druckmaschinen AG
- Current Assignee Address: DE Heidelberg
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102010020250 20100511
- Main IPC: B41F16/00
- IPC: B41F16/00 ; B41F19/00

Abstract:
A film transfer device guides a transfer film at least partly around a transfer cylinder having a channel. As a result of entrainment of the transfer film by an edge region of the channel during indexing, considerable impairment to web tension occurs, requiring an indexing speed to be reduced so as not to cause damage to the film. In order to increase an indexing frequency, in one region, i.e. more precisely in an edge region of the channel of the transfer cylinder, a coating is provided having such a nature that it at least reduces an adhesion of a rear side of the transfer film to the edge region of the channel, i.e. to the transfer cylinder in this case. In this way, the film slides better off the edge region of the channel and a higher indexing speed can be achieved.
Public/Granted literature
- US20110277650A1 FILM TRANSFER DEVICE Public/Granted day:2011-11-17
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