Form-fill sealing machines, resealable flexible packages and methods of manufacturing resealable flexible packages
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United States of America Patent
Stats
-
Mar 15, 2005
Grant Date -
Jan 22, 2004
app pub date -
Mar 31, 2003
filing date -
Jun 24, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A form-fill sealing machine (1) for manufacturing resealable packages (W) includes a tearable line forming device (30) that serves to form tearable lines (104) in a film (F). A labeling device (40) serves to stick re-stickable labels (103) onto the film in positions to cover respective tearable lines. A tube forming device (60) serves to form the film into a tubular film (T). A first sealing device (80) serves to seal lapped edges of the tubular film so as to form a lengthwise sealed portion (111). A second sealing device (90) serves to seal the tubular film in a crosswise direction, so that crosswise sealed portions (109) are formed on the tubular film. Each tearable line is positioned between two adjacent crosswise sealed portions and adjacent to one of two adjacent crosswise sealed portions.
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