Formation of laminated packaging blanks

Details Formation of laminated packaging blanks Formation of laminated packaging blanks

1975-04-09

1976-10-26

Coan, James F.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

93 3601, 156252, B31B 1560

Patent

active

039877116

ABSTRACT:
Laminated blanks for forming moisture-resistant packages are produced from a substrate, such as cardboard. A continuous web of substrate is perforated and fold lines formed. Perforated regions are stripped therefrom prior to laminating with moisture-resistant heat-sealable sheeting using a heat-weakenable laminating material. Thereafter, a multitude of rows of individual blanks are profiled by die-cutting the laminated web. The blanks have unsupported sheeting regions disposed along an edge portion of the substrate which provide membranes or webs that are adapted for sealing to another portion of the laminated sheeting to form a continuous barrier that may be used to prevent wicking in an erected package.

REFERENCES:
patent: 2363425 (1944-11-01), Klein
patent: 2756919 (1956-07-01), Davidson
patent: 2799211 (1957-07-01), Zerlin et al.
patent: 2959336 (1960-11-01), Mosse et al.
patent: 3130649 (1964-04-01), Striplin et al.
patent: 3240131 (1966-03-01), Doble, Jr.

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