Stretch wrapping film cut-off system

Details Stretch wrapping film cut-off system Stretch wrapping film cut-off system

1997-02-21

1998-06-16

Johnson, Linda

Package making

Methods

Conforming by stretching or shrinking of cover over contents

53556, 533893, B65B 5300

Patent

active

057653445

ABSTRACT:
In a stretch wrapping system, the film is punctured about half way across its width to form a small hole which is expanded in the prestretch station and the film finally broken by abruptly increasing film tension at the end of a wrapping operation.

REFERENCES:
patent: 4765120 (1988-08-01), Phillilps
patent: 4917008 (1990-04-01), Van Den Wildenberg
patent: 5014489 (1991-05-01), Terminella et al.
patent: 5372494 (1994-12-01), Vaughan
patent: 5572850 (1996-11-01), Lancaster et al.

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