Method for producing an elongated protective layer for the shape-forming material of a blank

Abstract

The present invention is a method for producing an elongated protective layer for the shape-forming material of a blank, in which a protective layer is applied onto a web fed base material or sheet base material. The protective layer is applied beyond the edges of the web fed base material or sheet base material on one side or two sides in order to form a free edge that is not fastened to the base material. The multi-layer material is then cut or punched along the outline of a blank. In the places where an elongated protective layer is produced, the cutting or punching is done directly along the free edge, taking into account a margin for the elongated portion of the protective layer of the blank. The invention protects the end faces of a material for a shapeable container.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a U.S. national phase application of an international application PCT / RU2019 / 000568 filed on 12 Aug. 2019, whose disclosure is incorporated herein in its entirety by reference, which international application claims priority of a Russian Federation patent application RU2018129757 filed on 15 Aug. 2018, now Pat. No. RU2695384.FIELD OF THE INVENTION[0002]The invention relates to the manufacture of workpieces for the production of packaging for mainly liquid, fatty and frozen foodstuffs or products containing or discharging fat and moisture.BACKGROUND OF THE INVENTION[0003]The most known types of packaging in which the invention may be applied are paper cups, various containers with round or other bases, packages of various shapes for dairy products, juices and other products in which the main forming / frame element is mainly pulp and paper material or any other material requiring protection of the end-face from contact wi...

AI Technical Summary

Benefits of technology

The invention provides a method to make a protective layer on a forming material without attaching it to the frame material, which makes it easier to cut and assemble the material. The method allows for the elongation of the protective layer and the use of a loose edge when needed. The use of a soldering process eliminates the need for additional protective materials or operations. This method is particularly useful for making cups and containers with a round base.

Problems solved by technology

When forming a container, where laminated pulp and paper material used as the frame material, as well as any other material, that requires protection of the end-face from contact with the contents of the container, there is a problem when the material overlaps at the seam.

A similar problem can also occur on the outer surface of the container at the seam with overlapping material.

The disadvantage of the above methods is the increased consumption of material, as it is required to cut windows from the frame material.

Images