Bag having intermittent orientation draw tape and method of maki

Details Bag having intermittent orientation draw tape and method of maki Bag having intermittent orientation draw tape and method of maki

1985-04-11

1986-12-09

Garbe, Stephen P.

Flexible bags

With closure

Gathered bag mouth

383908, 493203, 493211, 493215, 493225, B65D 3328

Patent

active

046285369

ABSTRACT:
Draw tape bags have a high molecular weight, high density polyethylene draw tape which is intermittently stretched so that the tape has central portions of relatively narrow and thin oriented polyethylene and end portions which are relatively wide and thick. The end portions are heat sealed to the sides of the bag panels to secure them. The stretching makes the tape cost more economical and improves the break characteristics while the thick and wide end portions permit good heat sealing without weakening the draw tape. Also disclosed is a method of making such bags.

REFERENCES:
patent: 2777491 (1957-01-01), Ashton et al.
patent: 3029853 (1962-04-01), Piazze
patent: 3196757 (1965-07-01), Samways
patent: 3414032 (1968-12-01), Jortikka
patent: 3506048 (1970-04-01), Jortikka
patent: 3547341 (1970-12-01), Kirkpatrick
patent: 3721383 (1973-03-01), Dufes

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