Laminated film for forming an easily openable tightly sealed bag

Details Laminated film for forming an easily openable tightly sealed bag Laminated film for forming an easily openable tightly sealed bag

1991-07-15

1992-08-25

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

206632, 428 343, 428 349, 428 43, 428349, 428136, 428347, 428461, 4284758, 4284761, 428516, B32B 712, B65D 8124

Patent

active

051417952

ABSTRACT:
A laminate film for forming a tightly sealed bag that can be opened easily by tearing at an edge thereof. The film is a laminate of a substrate layer and a heat seal layer, the substrate layer having a multiplicity of through cuts formed therein, said through cuts being partially or wholly filled by the heat seal layer material.

REFERENCES:
patent: 3650461 (1972-03-01), Hutcheson
patent: 4015771 (1977-04-01), Sengewald
patent: 4543279 (1985-09-01), Kari
patent: 4572377 (1986-02-01), Beckett
patent: 4696404 (1987-09-01), Corella

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