US 5,162,066 A · Method for the manufacture of a laminated material strip

Abstract

A method for manufacturing a laminated strip having a gas barrier material laminated in a liquid-tight manner between two external films includes the steps of forming surface irregularities in a first film, laminating a web gas barrier material to the first film, transversely cutting the gas barrier material and applying a second film over the gas barrier material. The apparatus for manufacturing the laminated strip includes a pair of cooperating rolls between which the first film is fed for forming irregularities in the first film. Two other cooperating rolls are provided for cutting the gas barrier member after it has been laminated to the first film. Two additional cooperating rolls are also provided for laminating the second film to the gas barrier material and the first film.

Claims6

Dependent claims

A method for manufacturing a laminated material strip for fabrication of packing containers, comprising the steps of:

forming transverse folds across a first film web;
laminating a web of substantially gas inpervious material to said first film web;
cutting the web of gas impervious material into individual strips at places corresponding to the transverse folds in the first film web;
stretching the first film web to flatten out the folds in the first film web and to separate the individual strips of gas impervious material;
and
laminating a second film to the first film to enclose the strips of gas impervious material between the first and second films in a gas-tight manner.

3 more elements

Dependencies are inferred from the claim text.

Method for the manufacture of a laminated material strip

Life of this patent

Method for the manufacture of a laminated material strip

Life of this patent

Abstract

Claims6