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USE OF HIGH BARRIER AND PEELABLE POLYESTER FILM FOR TRAY LIDDING, DUAL OVENABLE PACKAGING APPLICATIONS AND TRAY LIDDING DUAL OVENABLE PACKAGES OBTAINED THEREFROM
USE OF HIGH BARRIER AND PEELABLE POLYESTER FILM FOR TRAY LIDDING, DUAL OVENABLE PACKAGING APPLICATIONS AND TRAY LIDDING DUAL OVENABLE PACKAGES OBTAINED THEREFROM
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机译:将高阻隔和可剥离的聚酯薄膜用于托盘盖,双重烤箱包装应用以及从该托盘中获得的托盘盖双重烤箱包装
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摘要
The present invention relates to the use of a laminate film, which can be transparent or white or colored (as described in the specification), comprising a first bi-axially oriented polyester film laminated to a second bi-axially oriented polyester film, wherein said first bi-axially oriented polyester film comprises a polyester base film comprising at least one polyester layer comprising one or more co-polyester(s) comprising units of terephthalic acid and at least a diol, said second bi-axially oriented polyester film comprises a polyethylene terephthalate base film, an inorganic vapor deposited layer, and an optional outer protective layer directly adhered to said inorganic vapor deposited layer, said inorganic vapor deposited layer comprising an inorganic compound selected from the group consisting of oxides, nitrides and oxynitrides of Al, Ti, Si, Zn, Sn, and mixture thereof, and a glue layer is interposed between said first bi-axially oriented polyester film and said second bi-axially oriented polyester film, and wherein said laminate film has (i) a tear ratio, between the tear initiation force measured according to ASTM D-1004 and said first bi-axially oriented polyester film total thickness, of at least 37 gf/micron in at least one of longitudinal and transverse direction, and (ii) a free shrink measured according to modified IS011501-95 at 180°C for 5 minutes lower than 5% in at least one of longitudinal and transverse direction, as a lid in tray lidding applications and to the tray lidding packages made therefrom.
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