DE202017103121U1 - Deep-drawn shell, in particular aluminum shell - Google Patents

Abstract

Deep-drawn shell, in particular aluminum shell (1), with a rolled edge (4) and a circumferential sealing surface (6), by means of which it can be sealed with a board, characterized in that the rolled edge (4) is provided with a lacquer (5) ,

Description

The innovation relates to a deep-drawn shell, in particular an aluminum shell, with rolled edge corresponding substantially to EP 2 334 564 and the Oberbergriff of claim 1.

From the cited document, it is known to produce a shell made of aluminum, in particular for food or beverage ingredients, but also for pet food, with a rolled edge in which the inside and outside are colored differently, on the one hand to a visually appealing appearance after sealing To reach a board, on the other hand, by appropriate combination of the interior color and the exterior color, the former is also on the roll edge from the outside, the end user by the visually pleasing impression to prepare joy and / or information about the contents of the still closed shell or other information convey.

The steps in the cited document for producing such a container serve its purpose, but have the disadvantage that consumers do not appreciate different colors associated with a food, pet food, beverage ingredients, and others, such as green or yellow, however according to the content, other colors are quite undesirable. Furthermore, it is not possible by the previously known method to give more accurate information, it is just possible to combine the barely varying exterior color with a to be selected only from a small group of colors interior color.

There is thus a desire for a greater choice and there is also the desire to be able to determine and display the optical appearance of diverse and the information that can be conveyed within wide limits and independently of the raw material of the shell and its content.

It is the task of the innovation to create a solution here.

According to the innovation this is done by the features stated in the characterizing part of claim 1, in other words, that when printing the shell material which gets printed on its bottom surface, the outer surface, information and / or a decorative motif, in the region of its roll edge on the later inside and / or the later outer side is provided with a color imprint, which may also extend into the area of the sealing surface and / or the outer surface opposite the sealing surface.

The aluminum trays for the intended use are printed on the outside prior to the thermoforming process and, either during printing or independently of printing prior to printing, markings which can be of very different kinds are applied to the web, which effect the placement of the thermoforming tool and of the stamping tool. It therefore poses no problems during the printing process, precisely matching these markings on the desired side of the endless material, be it the later inner side and / or the later outer side, printing material exclusively in the area of the later rolled edge, possibly also in the area of the sealing surface and / or or reaching the sealing surface opposite outer surface reaching to apply. Since this is a printing process, preferably a gravure printing process, it is easily possible to apply different colors, which thus enable a correct color coding or visually appealing running colors (rainbow, etc.).

The accuracy of the ink application is to hold without much adjustment in such close geometric tolerances that desired If the actual sealing surface of the board, which is indeed within the rolling edge, and / or the area opposite this area outside of the paint application can be kept free, so on Any sealing properties of the paint in this case need not be respected.

Due to the application of the new paint according to the invention only in the area of the rolled edge, the familiar and appreciated by him appearance of the interior of the shell, especially if it comes into contact with the food, pet food, or beverage additives continues to give the user and the The prior art negative assessments of the consumer have no basis.

The innovation is explained in more detail below with reference to the drawing. It shows

the 1 a top perspective view of the underside of a "head-up" according to the invention bowl,

the 2 in a similar view a top view of the empty shell in a perspective view,

the 3 purely schematically and in high magnification a section in the region of the rolled edge,

the 4 a variant of the minor character of 1 with hinted multi-colored coding and

the 5 a view corresponding to the 2 with varnish application also on the sealing surface.

Out 1 is an example of a deep-drawn aluminum tray 1 usually with not shown in the figure printing on the floor and possibly the oblique side walls 3 , as well as with stiffening ribs in the side wall 3 and the colored rolled edge 4 seen. The coloring 5 is indicated only in the larger scale minor character by the dots.

The exterior color of the shell 1 may be uncoloured aluminum, it may be a, then mostly yellowish or gold, lacquer or plastic coating, or any other desired by the manufacturer, the filler or the consumer design. Essential and apparent from the figure is that the rolled portion of the rolled edge 4 on the inside 2 the aluminum foil from which the shell has been deep-drawn is dyed, so that the color becomes visible from the outside during rolling, both from below ( 1 ) as well as from above ( 2 ) seen.

The rolled edge is in 3 Although it is rolled in most cases so that the inside of the film is rolled outwards, there are also applications in which the outside is rolled inwards. Most of the role is wholly or substantially below or above the sealing surface 6 , rarely as shown, in the middle. The 3 Its neutrality is intended to indicate all these possibilities. Depending on the intended direction of roll, the ink application should be carried out on the "right" side, which is not a problem with the commonly available printing presses.

The 2 shows the variant in which the coloring only the area of the rolled edge, but not, or hardly, the shoulder 6 the shell on which the sealing takes place with the board (not shown) detected. Since the inside of an aluminum shell is coated in almost all applications with a sealable plastic layer, even in order to preserve the content from direct contact with the aluminum, here is still, the whole, or almost the entire shoulder surface, which is annular around the opening of the shell draws for sealing with the board available.

5 shows a variant in which the paint and the sealing surface 6 covered, he can either be self-sealable or under the then preferred transparent seal layer shine through. The variant in which the counter surface 7 ( 1 ), the sealing surface 6 is opposite, printed, was not shown.

Out 3 Finally, it can be seen that the applied in the course of printing the continuous material color or the applied paint, if desired, actually covers only the later crimped to the roll edge during deep drawing area and thus visually appealing and technologically meaningful fulfills its purpose.

Regardless of the printing of the rolled edge, it is of course possible, as already known from the prior art, to print the inside and / or outside of the shell off the roll edge independently. Since printing processes can be carried out very accurately, the border to the printed rolled edge can be kept very accurately.

The term "paint" or "paint" is to be understood in the broadest sense and includes all materials that can be applied by a printing process. The change in color, brightness, intensity along the roll edge may have purely aesthetic backgrounds but may also encode information as mutatis mutandis is known from the bar code and other identification features.

The markings can be printed on the continuous material, they can also consist of imprints of continuous material and they can be "multi-part" per later shell, for example, to specify the correct angular position for thermoforming mold and the like, as it is also provided in the prior art becomes.

It can be combined in any way the individual variants of the innovation mentioned. If the focus of the innovation is also on an aluminum foil as a starting material, it is still possible to design other deep-drawable starting materials according to the new standard. The useful colors will be readily apparent to those skilled in the packaging arts, having regard to the novelty and application, and will most likely be those already used in the art of printing such trays.

LIST OF REFERENCE NUMBERS

1

 Bowl

2

 inside

3

 outside

4

 rolled edge

5

 Paint, color

6

 Sealing surface, shoulder

7

 counter surface

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2334564 [0001]

Claims (3)

Deep-drawn shell, in particular aluminum shell ( 1 ), with a rolled edge ( 4 ) and a circumferential sealing surface ( 6 ), by means of which it can be sealed with a board, characterized in that the rolled edge ( 4 ) with a varnish ( 5 ) is provided. Shell according to claim 1, characterized in that the sealing surface ( 6 ) and / or the counterface ( 7 ) with the paint ( 5 ) are provided. Shell according to claim 1 or 2, characterized in that the color and / or brightness and / or intensity of the paint along the rolled edge ( 4 ) changes.

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