RU37976U1 - FOOD PACKAGING - Google Patents

Description

Food packaging

The utility model relates to the field of packaging and can be used in the food industry. In particular, the utility model relates to packages made of multilayer films and intended for long-term storage of a prepared food product, such as sliced salami or chips.

The use of multilayer films for packaging products, including for food products, is widespread at present. Depending on the use, these films contain various plastic layers, which, in accordance with their chemical composition and subsequent properties, satisfy the task.

Known packaging for food products, which is a bag made of a polymer material, designed for hermetic sealing with the possibility of filling with inert gas after placing the product in it (Prospectus of the company INNPLAST presented at the exhibition Packing-9G. - M., 1991).

The disadvantage of this package is that it has insufficient ability to hold after opening and is intended mainly for horizontal location on any surface. After opening the package, it cannot occupy a vertical position to prevent product from falling out, but must remain in a horizontal position. This creates certain inconveniences for the user both in terms of using the packaged product, and in terms of its preservation.

Known household perforated, gas-permeable bag made of a multilayer film containing a sealing and additional polymer layer. The bag is formed by transverse sealing a seamless piece of a perforated sleeve, then food is placed in the bag and closed with clamps or creasing (US, No. 479124, B 65 D 81 / 34.1983).

B65D 30/08

The closest analogue is food packaging in the form of a bag made of a seamless sleeve containing at least three layers, the inner layer or wall being a heat-insulating layer and the other layers a gas-protective layer and an additional polymer layer located on the outside (SU No. 1431670 , 65 D 9 / 00.1988.).

The disadvantage of these known packages is that they are not designed with the possibility of changing the original shape so that the packaging can be placed vertically from a flat position on the surface. This is especially important when it comes to bags of packaged fast food such as chips, salami, etc.

This useful model is aimed at solving the technical problem of forming a package of a type of stiffening elements in a package, which ensure the shape holding of the package both in horizontal and vertical position. The technical result achieved in this case lies in the convenience of using and obtaining cheap and easy packaging for food products having a good presentation, providing long-term storage of products, including fat-containing ones, without losing their appearance and taste.

The specified technical result is achieved by the fact that in a food packaging made in the form of a bag made of a seamless or stitched sleeve from a three-layer film, the cavity of which is intended for packing a food product, and sealed by fastening facing parts of the wall of the seamless sleeve facing each other in the transverse direction of at least one weld to form transverse sealed edges and front and rear walls, while in this film the inner layer is eploizolyatsionnym and grease-proof, while others - gas barrier layer and a polymer layer outside dopolnitelnymraspolagaemym cavity

the package sealed by transverse welds is filled with a nitrogen-containing gas mixture after placing a food product in it, the volume of which is less than the volume of the specified cavity to allow free movement of the specified product inside the package, and the side walls of the package are folded along the fold line, which is directed inside the cavity of the package, while

sections at the places of inflection of the side walls with respect to the front and rear walls are interconnected by at least one weld seam to form longitudinally sealed edges, and a section with a film weakening is made along one of the transversely sealed edges at its boundary with the front or rear wall separation of this transversely sealed edge from the walls.

These features are significant and interconnected with the formation of a stable set of essential features sufficient to obtain the specified technical result

The present utility model is illustrated by a concrete example, which, however, is not the only possible one, but clearly demonstrates the possibility of achieving the required technical result by the given set of features.

In FIG. 1 - a general view of the packaging in its vertical position, the first example of shaping;

in FIG. 2 - same as in FIG. 1, a second example of shaping;

in FIG. 3 - general view of the packaging in its horizontal position;

in FIG. 4 is a section AA in FIG. 3;

FIG. 5 is a general view of a package made of a stitching sleeve, its vertical position.

According to the present utility model, a food packaging (Fig. 13) made in the form of a bag is made of a shameless (Fig. 1, 2) or stitched (Fig. 5) sleeve made of a three-layer film, the inner layer of which is heat-insulating and greaseproof and others with a gas-protective layer and an additional polymer layer located on the outside, on which a decorative coating is applied with the required information on the product and the manufacturer in the prescribed manner.

As three-layer composite films with the indicated properties, for example, films described in RU No. 2085395, 2104908 can be used.

To obtain a package, part of the sleeve of a given length is sealed by fastening the wall parts of the seamless sleeve facing each other in the transverse direction with at least one weld seam 1 to form

the transverse sealed edges 2 and the front 3 and rear 4 walls bounding the cavity 5, intended for laying a food product (not shown), for example, sliced salami. The cavity 5 of the bag sealed with transverse welds is filled with a nitrogen-containing gas mixture after placing the food product in it to ensure environmentally friendly conservation. In this case, the volume of the food product placed in the cavity should be less than the volume of the specified cavity to allow free movement of the specified product inside the package.

The side walls 6 of the package are folded along the fold line 7, which is directed inside the cavity of the package (Fig. 3. 4). And the edge sections 8 in the places of inflection of the side walls with respect to the front and rear walls are interconnected by at least one weld to form longitudinally sealed edges.

Along one of the transversely sealed edges at its boundary with the front or rear wall, a portion 9 is made with a weakening of the film to tear this transversely sealed edge from the walls.

Thus, in the initial position (Fig. 3), the package with the food product placed in it has an approximately flat swollen shape, which does not take up much space and is convenient for transportation in boxes. To open the package, it is enough to tear off section 9 with a weakening of the film, after which it is possible to completely separate the sealed edge from the package.

Due to the fact that the volume of the food product placed in the cavity is less than the volume of the package cavity and the product has the ability to move freely inside the package, as well as due to the fact that along the fold lines of the side walls with respect to the front and rear walls it is made in the form of a seal performing the function of a deformable stiffening rib, the effect of forming the package when setting it in a vertical position, as shown in FIG. 1, 2 and 5. To do this, turn the bag from horizontal to vertical, lean it on the surface of one of the transverse sealed edges and press it slightly towards the supporting surface. Depending on the volume occupied in

cavity of the package with a food product, the package in a standing position takes the form of FIG. 1 of FIG. 2 or in FIG. 5.

In this position, the package acquires stability due to the creation in the lower part of the expanded support section in the form of the bottom of the package (Fig. 1, 2). By shaking the bag, the flat shape of FIG. 3.

This utility model is industrially applicable, since it does not require the use of special technologies, except for those that are currently used in the manufacture of packaging from a polymer multilayer film.

Claims (1)

Food packaging made in the form of a bag made of a sleeve made of a three-layer film, the cavity of which is intended for laying a food product, and sealed by fastening the wall parts of the seamless sleeve facing each other in the transverse direction with at least one weld to form transverse sealed edges and the front and rear walls, while in the specified film the inner layer is heat-insulating and grease-proof, and the other is a gas-protective layer and supplement an external polymer layer, characterized in that the cavity of the bag sealed with transverse welds is filled with a nitrogen-containing gas mixture after placing the food product in it, the volume of which is less than the volume of the specified cavity to allow free movement of the specified product inside the bag, and the side walls of the bag are folded along the line fold, which is directed inside the cavity of the package, while the edge sections in the places of inflection of the side walls with respect to the front and rear walls oedineny together by at least one weld seam to form a densified longitudinally extending edges, and along one of the transverse seal at the boundary edges of its front or rear wall portion is formed with a weakening for separation of the film transversely sealed edge of the walls.