Method of applying a plastic wrap to a contoured container
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United States of America Patent
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Dec 11, 1990
Grant Date -
N/A
app pub date -
Jan 12, 1990
filing date -
Jan 12, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method of this invention includes the step of providing a mandrel sleeve shaped on the inside to fit over the small diameter end of a contoured container and being of an outer diameter substantially equal to the large diameter portion of the container. After applying a solvent of the plastic sheet material to the trailing edge of a length thereof, the sheet is wrapped around the container and the mantrel sleeve so that the trailing edge overlaps the leading edge and the solvent forms a firm bond between the overlapped edges. The mandrel sleeve is then withdrawn from the wrapped length, leaving it around the container, and the sheet material is heat shrunk to fit tightly over its full height around the contoured container. Before the sheet is wrapped around the mandrel and container, an adhesive, such as a hot melt glue, may be applied too that portion of the sheet that is wrapped in direct contact with the container.
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