Paperboard container with internal raw edge protection and metho

Details Paperboard container with internal raw edge protection and metho Paperboard container with internal raw edge protection and metho

1984-04-18

1986-02-25

Moy, Joseph Man-Fu

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 48SB, 229 48T, B65D 5742

Patent

active

045724261

ABSTRACT:
There is disclosed a container structure including a sealed side seam having a protected internal raw edge, and a method for accomplishing same. The method includes skiving or cutting a side seam flap along a taper to a feather edge, applying a sealant to the skived surface, and pressing the sealant-covered strip under heat and pressure into contact with the inside surface of the adjacent side wall panel to become sealed thereto without an exposed internal raw edge. Alternatively, the sealant may be applied to the side wall panel adjacent the skived tapered surface.

REFERENCES:
patent: 3307738 (1967-03-01), Scheindel
patent: 3414184 (1968-12-01), Loheed
patent: 3456863 (1969-07-01), Mollison et al.
patent: 3604613 (1971-09-01), Haas
patent: 3951332 (1976-04-01), Torbeck
patent: 4239150 (1980-12-01), Schadowski et al.
patent: 4292386 (1981-09-01), Takano
patent: 4315571 (1982-02-01), Danne

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