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.

Claims

1. A method of production of a package workpiece in which a protective layer is applied to the frame roll or sheet material to obtain a forming material, which is distinguished by the fact that a protective layer is applied outside the frame roll or sheet material on one side or both sides to form a loose edge, not attached to the frame material, carry out die-cutting or cutting of multilayer material along the contour of the workpiece, in places of obtaining an elongated protective layer die-cutting or cutting is carried out directly at the freely lying edge, taking into account the allowance for elongation of the protective layer of the workpiece.

Description

DRAWINGS OF THE INVENTION

[0019] The proposed method of obtaining an extended protective layer is explained by the attached drawings where: [0020] 1protective layer; [0021] 2frame material; [0022] 3elongated protective layer; [0023] 4workpiece contour; [0024] 5loose edge (freely lying outside the edges of frame material) [0025] 6isolated protected end-face of the frame material.

[0026] FIG. 1 shows a scheme of the inventive method for protecting the end-face 6 of the frame material 2 by lengthening the protective layer 1 and its soldering to the mating to isolate the end-face 6.

[0027] FIG. 2 shows the scheme of the claimed method for obtaining an elongated protective layer 3 by applying the protective layer 1 outside the edges the frame material 2 to form a loose edge 5, freely lying outside the edges of frame material 2. Then the die cutting of the workpiece contour 4 of the frame material 2 is carried out. In the places of formation of the elongated protective layer 3, die-cutting is made directly on the loose edge 5.

DESCRIPTION OF PREFERRED EMBODIMENT OF THE INVENTION

[0028] According to a preferred embodiment of the invention, the method for applying the protective layer 1 envisages that the applying is carried out outside the edges of the frame material 2, which comes in the form of web fed or sheet material, to form a loose (freely lying) edge 5, not attached to the frame material 2. Then the die cutting of the workpiece contour 4 of the frame material 2 is performed. In places of formation of the elongated protective layer 3, die-cutting is made directly on the loose edge 5 taking into account the allowance on prolongation of the protective layer 3.

[0029] A limiting feature of the production of workpieces when using the method of applying a protective layer outside the edges of the web fed or sheet material is the need for a special arrangement of the contour of the workpieces with the orientation of their allowance only to the outer edge of the source material due to the possibility to form a loose edge of the protective layer only outside the source material.

[0030] When designing the arrangement of the contour of the workpieces for the correct placement of the extended protective layer, the location and overlap of the workpiece material should be taken into account during future welding in order to ensure the correct formation of the container (packaging) and to protect the end-face of the frame material on the correct side of the packaging (note: as a rule, the inside of the future container).

[0031] It should be noted that this invention does not limit the protection of the end-face of the frame material in the formation of containers (packaging) only from the inner surface of the container (packaging), but can also be used to protect the end-face of the frame material from the outer side of the container (packaging).

[0032] It should also be noted that a protective layer can be applied to one side of the frame material, and, if necessary, to protect the end-face of the frame material on both sides of the container, on both sides, forming in the place of formation of a loose protective layer at its soldering (gluing) among themselves self-sufficient protection of the end-frame material of frame material on both sides of the container.

[0033] Further production of containers (packaging) is carried out in a conventional way with the selection of appropriate tools and welding modes of the material. Welding of the frame material to the mating surface of an elongated protective layer protecting the welding site from contact with the environment (e.g. the contents of a container) is also ensured together with welding of the frame material.

[0034] It should be noted that the present invention, which was described above with reference specifically to the attached drawings, is not limited to those embodiments described and shown for illustrative purposes only, and that changes and modifications, which are obvious to a person qualified in this area, and not beyond the scope of the invention as disclosed in the enclosed claims are possible.