Method for skin packaging using platen forming of the film, and

Details Method for skin packaging using platen forming of the film, and Method for skin packaging using platen forming of the film, and

1979-03-26

1980-09-02

McGehee, Travis S.

Package making

Methods

Skin packaging

B65B 1152

Patent

active

042199875

ABSTRACT:
A method for pressure packaging of articles between a heated thermoplastic film and a substrate utilizes apparatus providing a bed platen, means for heating a thermoplastic film, means for supporting the film above the bed platen and a pressure platen having a recess in the lower surface thereof adapted to receive the article being packaged. The pressure platen and bed platen are moved relative to each other so as to deform the heated thermoplastic film into a sheath about the article and to press the heated film against the substrate outwardly of the article to effect bonding therebetween. The pressure platen desirably has a release coating thereon to prevent adhesion of the heated film thereto. Vacuum may be drawn through the bed platen and the substrate to enhance bonding of the film to the substrate.
A cooperating cutting platen includes cutting blade means and resiliently deformable material disposed therewithin so that, when the cutting platen is moved against the surface of the film and substrate to effect cutting, the resiliently deformable material bears firmly upon the still heated thermoplastic film outwardly of the article to apply further bonding pressure thereto.

REFERENCES:
patent: Re26494 (1968-12-01), Stocker
patent: 2861404 (1958-11-01), Stratton
patent: 2927409 (1960-03-01), Heyer
patent: 2958172 (1960-11-01), LaBranche
patent: 2989827 (1961-06-01), Groth
patent: 3103774 (1963-09-01), Wall
patent: 3270482 (1966-09-01), Kraut
patent: 3363395 (1968-01-01), King

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