| 摘要 |
A peaforated collagen film is utilised for wrapping meat and poultry food products. The film comprises a series of perforations for allowing the escape of trapped air or steam from within the wrapped product, the pattern and the spacing of the perforations in each of two mutually perpendicular directions (T,M) and the siu of each perforation being such that the film has a strength sufficient for wrapping, processing and cooking a compressed netted food product without tearing of the film.
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