Joint on packing containers and a method and arrangement for the

Details Joint on packing containers and a method and arrangement for the Joint on packing containers and a method and arrangement for the

1983-11-18

1986-05-20

Moy, Joseph Man-Fu

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 48T, B65D 542

Patent

active

045895910

ABSTRACT:
Joints in packing containers of heat-sealable gas-tight laminate are sensitive to deformation, since this often results in a deterioration of the gas-tightness. This is due to the accumulation of melted thermoplastics which is produced during the heat-sealing. This problem is eliminated in that the sealing zone of the joint is given a limited width and is placed at a distance from the edge of the laminate. A method and an arrangement for realizing this comprises a heating zone whose width is limited in relation to the width of the sealing jaws which are used for the sealing together of the material layers.

REFERENCES:
patent: 2979247 (1961-04-01), Pellaton et al.
patent: 3063593 (1962-11-01), Kuchenbecher
patent: 3362608 (1968-01-01), Dilot
patent: 3604613 (1971-09-01), Haas
patent: 3712844 (1973-01-01), Ratten et al.
patent: 4239150 (1980-12-01), Schadowski et al.
patent: 4287247 (1981-09-01), Reil et al.
patent: 4312473 (1982-01-01), Hoellek

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