Method for the manufacturing of an airtight, recyclable and biod

Details Method for the manufacturing of an airtight, recyclable and biod Method for the manufacturing of an airtight, recyclable and biod

1994-10-28

1997-02-18

Coan, James F.

Package making

Methods

Forming or partial forming a receptacle and subsequent filling

53426, 53467, 53456, B65B 4310, B65B 5510

Patent

active

056032005

ABSTRACT:
A method for manufacturing an airtight, recyclable, biodegradable package includes the steps of stamping a cardboard sheet to mark the folding lines which define the lateral walls, the top walls and the bottom of the package as well as adhesive bands. The sheet is then sterilized. A fast drying adhesive substance is applied on the adhesive bands between the walls. The cardboard sheet is then folded so that the adhesive bands overlap each other in pairs forming a tube. The ends of the tube are closed by folding the bottom walls making a flat base. The top walls are folded to seal the tube. The adhesive in the adhesive bands becomes activated to form a closed airtight package.

REFERENCES:
patent: 2176147 (1939-10-01), Palmer
patent: 2342198 (1944-02-01), Hultin
patent: 3280531 (1966-10-01), Meyer-Jagenberg
patent: 4506491 (1985-03-01), Joosten et al.
patent: 5154041 (1992-10-01), Schneider

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