Method of sealing a shrink wrap package

Details Method of sealing a shrink wrap package Method of sealing a shrink wrap package

1988-11-14

1990-09-18

Spruill, Robert L.

Package making

Methods

Conforming by stretching or shrinking of cover over contents

53450, 156 86, 156203, B65B 906, B65B 5302

Patent

active

049569635

ABSTRACT:
An article is wrapped in a shrink film having a longitudinal seal. The longitudinal seal is formed by swirling hot melt fibers onto a longitudinal edge of the film and bringing longitudinal edges together to form an initial pressure-sensitive seal. The shrink film and hot melt are then subjected to the elevated temperature of shrink oven to shrink the film and to form a more complete bond at the longitudinal seam.

REFERENCES:
patent: 2546721 (1951-03-01), Campbell
patent: 3347013 (1967-10-01), Piazze
patent: 3653177 (1972-04-01), Adams et al.
patent: 4098052 (1978-07-01), Singer
patent: 4098632 (1978-07-01), Sprague, Jr.
patent: 4183193 (1980-01-01), Klingelhofer
patent: 4478670 (1984-10-01), Heyse et al.

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