Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1999-01-19
2000-10-31
Yao, Sam Chuan
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156204, 156227, B65B 6118, B65D 3010
Patent
active
061396621
ABSTRACT:
Methods of making flexible packages having an openable and resealable interlocking closure from a continuous web of flexible film, the closure being formed transversely to the direction of film flow at the consumer preferred position across one end of the package during package formation at line speed. The system utilizes a converter device mounted atop or adjacent to standard packaging apparatus to form a small amount of the running packaging film into the resealable closure structure as an integral part of the film extending transversely to the long dimension of the package. The converter functions with both horizontal and vertical form/fill/seal wrapping machines and with overwrap packagers, and uses diverse packaging films. The package formation begins by feeding the plastic packaging film into the converter where the film is first automatically fanfolded across the entire width of the film to form a stack, the layers of which are immediately heat sealed together forming a multilayered semi-rigid strip of typically one half inch width extending completely across the film width in plane with the film. The number of folds in the stack varies depending on the thermoforming properties and thickness of the particular film being used. In one embodiment of the invention, the resealable locking feature is next thermoformed into the multilayered strip which then continues through the packaging machinery in the usual manner, encircling the product and passing through the end sealer where the package ends are sealed and cut, and the front and back film panels are pressed together closing the resealable locking feature.
Lidell Walter B.
Sealstrip Corporation
Yao Sam Chuan
LandOfFree
Methods of making resealable packages, method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods of making resealable packages, method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of making resealable packages, method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2046759