Method for carrying out a treatment on a thin film
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United States of America Patent
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N/A
Issued Date -
Oct 7, 2004
app pub date -
Apr 26, 2004
filing date -
Apr 12, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a method for perforating a thin film (14), in particular a plastic film, in which the film (14) is quided over a perforating cylinder (10), with the result that perforations are formed in the film (14), a thin-walled hollow cylinder (10) which comprises at least one layer (52) of fibre-reinforced plastic is used, the fibres in which layer are oriented at least in one direction. A fibre-reinforced cylinder of this type has the required rigidity and is not expensive.
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