FI12983Y1 - Product package and product package blank - Google Patents

Abstract

A product package comprising a body provided at the top (1), at least with side walls (2) and end walls (3) and at the upper edge of the walls (2, 3) folded outwards according to bending lines (8), forming edge portions (5, 6) forming a substantially planar edge portion characterized in that the body part comprises more than one reinforcing part (4a) for stiffening and holding the product package in its shape and for supporting the walls (2, 3) of the product package, and that in the shaped product package each reinforcing part ( 4a) is arranged on the inner surface of the adjacent wall (2, 3 or 4). In addition, protection requirements 2-5.

Description

The invention relates to a product package as set out in the preamble of protective claim 1, such as a guttered food package made mainly of recyclable fibrous material, and to a product package blank as set out in the preamble of protective claim 4 for producing a product package according to claim 1.

It is known that there are various food packages in which, for example, ready-to-eat foods are packaged, which can be heated in a microwave oven or the like. The majority of such packaging today is made entirely of non-recyclable plastic. This poses a major environmental problem.

In addition, the shaping includes a horizontal flange rotating around the upper edge of the entire package, which is intended as a fastening surface and a sealing base for the package lid, which closes the package tightly, for example by heat sealing, when the package is filled and cooked.

Food packages are also known which are made, for example, of cardboard or the like and lined on the inside with a separate food film, as in traditional plastic packages. One such solution is disclosed in Patent Publication No. EP2441696. The top edge N of a cardboard food package described in that publication has a substantially horizontal, lateral> planar flange for fixing the lid. The product packages according to Figures 1A and 2 of the publication <Q 30 do not have any reinforcements between the end walls and the side walls, E so the product package according to the publication has poor rigidity and very poor durability. In general, known cardboard product packages can be very uneven in stiffness and durability.

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D The object of the present invention is to eliminate the above-mentioned drawbacks and to provide an inexpensive, sturdy, space- and cost-effective product package. In addition, it is intended to provide a product package which, when stacked nested, does not cause the stack to condense and which product packaging stacks can be reliably utilized in the mechanical filling process of the product packages. It is also an object of the invention to make it possible to simplify the manufacturing steps of the product package and to reduce the possibility of errors in the manufacturing step by omitting one step of the process, i.e. the gluing step. In addition, the aim is to provide a more rigid structure of the product package, which in turn enables thinner material and thus material savings. One of the aims is also to provide the most environmentally friendly and ecologically recyclable product packaging possible.

The product package according to the invention is characterized by what is set forth in the characterizing part of claim 1. Correspondingly, the product packaging blank according to the invention is characterized by what is set forth in the characterizing part of claim 4. Other embodiments of the invention are characterized by what is set forth in the other claims. The product package according to the invention comprises a body part with a plurality of walls, such as side walls and end walls, and at the top of the walls folded outwards according to the bending lines, forming a substantially planar edge portion, with edge portions, the body part having space for the product to be packed. Preferably, the body portion comprises more than one reinforcing portion to stiffen and hold the product package in its shape and to support the walls of the product package. In addition, in the shaped product package bent, each reinforcing part is arranged on the inner surface of the adjacent wall. In one preferred solution, in a product package bent into shape, each reinforcing member is arranged on the inner surface of an adjacent wall S to which the reinforcing member is attached by means of an inner liner attached to the inner surface of the product package.

One preferred product package comprises an corner wall between each side wall and the end wall, and the reinforcing parts are provided with bending lines either: at the side edges of the corner walls, at the side edges of the end and side walls or at the side edge of all walls on the same side.

In a preferred embodiment of the invention, the product packaging blank comprises a plate-like structure made of recyclable fibrous material, with a base part, wall parts and edge parts separated from the product packaging blank separated by bending lines and cuts for a product packaging to be produced by folding.

Fdullly, the product packaging blank has reinforcing parts projecting from the side edges of the walls and formed by wall bending lines.

The advantage of the solution according to the invention is, inter alia, that the product package according to the invention is very strong and has good rigidity, even though no glue has been used to fasten the walls to each other.

Another advantage is that the rigid structure allows for a thinner material and thus material savings and costs, and also improves the environmental friendliness.

The fact that no glue has been used and that the fiber-based body part of the product packaging must be recycled as such, as long as it is easy to remove, for example, the easily lined inner liner, for example, of food plastic, also contributes to environmental friendliness. in addition, the advantage is that without the gluing step, the production process is simpler and the necessary production equipment is simpler, so that the space required for production can also be smaller.

The solution according to the invention then also improves the energy efficiency of the E production process.

S In the following, the invention will be described in more detail by means of one N 35 application example with reference to the accompanying drawings, in which Fig. 1 shows obliquely side and top view of one product package according to the invention, Fig. 2 shows oblique side and top view of another product package according to the invention, Fig. 3 Fig. 4 shows a side view of the product package according to Figs. 1 or 2 and the inner liner attached to its inner surface, which in the situation of Fig. 4 is still detached; Fig. 5 shows a top view of the product package according to Fig. 1 as an opened blank before being folded into a product package, and Fig. 6 is a plan view of the product package of Fig. 2 as an opened blank before being folded into a product package.

Figure 1 shows an oblique side and top view of one product package according to the invention, the body part of which consists of a base 1 and eight wall parts, i.e. two side walls 2, two end walls 3 and four corner walls 4 of the side walls 2 and the end walls 3. between.

In addition, the product package has edge portions 5 and 6 extending outwardly from the upper edge of the wall portions 2-4, which are arranged to form a substantially flat surface on the lid of the product package.

The first edge portions 5 are on the sides of the product package and the second edge portions 6 are at the ends of the product package.

Preferably, the ends of the first edge portions 5 and the second edge portions N are arranged opposite each other in the vertical center line of the corner walls E 30, wherein the seam 7 between the first edge portions 5 and the second edge portions 6 is also S substantially in the vertical center line 1a of the corner walls 4.

The seams 7, i.e. discontinuities, of the edge parts 5 and 6 of the product package are as small as possible, i.e. in the solution according to the invention only four pieces.

The corner walls 4 of the product package further comprise a reinforcing part 4a at each side edge of the corner wall 4, which reinforcing part 4a extends laterally from the corner wall 4. In this case, the first reinforcing part 4a extends from the corner wall 4 in the direction of the side wall 2 of the product package 5 and is arranged to rest on the side wall 2 and the second reinforcing part 4a extends from the corner wall 4 in the direction of the end wall 3 of the product package. attached to the corner walls 4.

Fully, the bending lines 8 of the base 1 of the body part, the walls 2-4 and the edge parts 5, 6 are provided with small openings through which air can be sucked in during the manufacturing step of the product package. The openings may be perforated in succession and may vary in size and shape. Thus, for example, they may be substantially round or narrow linear rectangular openings. To facilitate bending, the bending lines may also have a groove or some similar structure.

Figure 2 shows an oblique side and top view of another product package according to the invention, which is otherwise substantially similar to the product package shown in Figure 1, but in this solution the reinforcing parts 4a are attached to the side walls 2 and the end walls 3 separated by a bending line 8. the reinforcing part 4a extends from the side wall 2 of the product package in the direction of the corner wall 4 and is arranged to rest on the corner wall 4 and the second reinforcing part 4a N extends from the end wall 3 of the product package towards the corner wall 4> and is arranged to rest on the corner wall 4. O 30 N a fiber-based blank in which the necessary cuts and bending lines 8 have been made, which preferably comprise perforations made through the abrasive material in substantially straight lines N 35 at regular intervals, i.e. the openings mentioned above.

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D Figure 3 is an oblique top view of one upside down product package according to the invention. Figure 3 clearly shows the support parts 9 in the upper corners of the side walls 2 and the end walls 3, which, when stacking the product packages on top of each other, are arranged to keep the product packages in the stack at a vertical distance from each other.

Fig. 4 is a side view of the product package according to Figs. 1 or 2 and the inner liner 10 to be attached to its inner surface, which in the situation of Fig. 4 is still detached. The inner liner 10 is, for example, food grade plastic and can be easily removed from the body after use, whereby the fiber-based body can be recycled. The inner liner 10 is attached to the body portion and is arranged to make the package airtight together with a lid, which lid is not shown in the figures. The fastening of the inner liner 10 is made, for example, by producing a vacuum below the body part, by means of which the inner liner 10 provided with adhesive from its lower surface is arranged to be sucked onto the inner surface of the body part. This is done by vacuuming the air between the body part and the inner liner 10 placed inside it through the body part. In order to enhance the suction effect and to facilitate folding into the shape of the package, the product package has fold lines 8, through the openings of which the suction of the inner lining 10 to the inner surface of the product package is realized. By the method described by Ff, the inner liner 10 adheres tightly to the inner surface of the body part and at the same time firmly fastens the reinforcing parts 4a to the inner surface of the side walls 2 and end walls 3 in the product package according to FIG. In this case, the reinforcing parts Ea 4a remain firmly between the inner lining 10 and the side walls -2, as well as between the inner lining 10 and the end walls 3.

LO = line. Correspondingly, in the product package according to Fig. 2, the inner liner 10 is tightly attached to the inner surface of the body part and at the same time firmly fastens the reinforcing parts 4a to the inner surface of the corner walls 4.

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In this case, the reinforcing parts 4a remain firmly between the inner lining 10 and the corner walls 4.

The body part according to Fig. 1 is made, for example, by mechanically folding it from the blank shown in Fig. 5 into its shape shown in Fig. 1.

The blank is pre-cut so as to be obtained by folding a product package of the desired shape and size, comprising a storage space with a base 1 and at least walls 2 and 3 for the product to be packaged, such as a food portion.

Figure 5 is a plan view of the product package of Figure 1 as an opened blank before being folded into a product package.

The product packaging blank preferably comprises a plate-like structure made of recyclable fibrous material with a product package bottom 1, side walls 2, end walls 3, corner walls 4 with reinforcing parts 4a and edge portions 5, 6 and edge portions 8 provided with bending lines 8 and cuts 11. manufacture of product packaging.

The reinforcing parts 4a are separated from the side walls 2 and the end walls 3 in the blank by a cutting seam 11 and in addition there is a bending line 8 between the reinforcing parts 4a and the corner walls 4, the reinforcing parts 4a being attached to the corner walls 4 but cut away from the side walls 2 and the end walls. 9 is cut away from the edge portions 5 and 6 by cutting openings 12. O 30 N Correspondingly, the body part according to Fig. 2 is made by folding it, for example, mechanically from the blank shown in Fig. 6 to its shape shown in Fig. 2.

The blank S is pre-cut so as to be folded into a product package of the desired N 35 shape and size, comprising a storage space with a bottom 1 S and walls 2 and 3 for the product to be packaged, such as a food portion.

Figure 6 is a plan view of the product package of Figure 2 as an opened blank before being folded into a product package. The product packaging blank preferably comprises a plate-like structure made of recyclable fibrous material with a product package base 1 separated by bending lines 8 and cuts 11, side walls 2 with reinforcement parts da, end walls 3 with reinforcement parts 4a, corner walls 4 and edge parts 5, 6 is provided with openings to facilitate the manufacture of the product package.

The reinforcing parts 4a are separated from the corner walls 4 by a cutting seam 11 in the blank and further there is a bending line 8 between the reinforcing parts 4a and the side walls 2, and there is also a bending line 8 between the reinforcing parts 4a and the end walls 3. detached from the corner walls 4. The support parts 9 are also cut off from the edge parts 5 and 6 by cutting seams 12.

Some suitable recyclable fibrous material has been used as the body material. Preferably, the material is, for example, corrugated board, cardboard or some other suitable recyclable fibrous material.

It will be apparent to those skilled in the art that the invention is not limited to the examples set forth above, but may vary within the scope of the protection requirements set forth below. Thus, for example, some structural solutions may be different from those described above. In this case, for example, the shape, location or number of reinforcement parts <Q 30 may vary. Instead of one substantially large integral part, the reinforcing parts N can be, for example, several small and overlapping parts which are fixed either in the corner walls or in the side edges S of the side and end walls.

It is also clear to a person skilled in the art that there can be only one reinforcement part in each wall, for example one reinforcement part at the other end of each wall. In this case, however, the reinforcement parts are as many as in the above-mentioned examples, and their reinforcing effect is substantially equal.

It is also clear to a person skilled in the art that the product packages can have different shapes than those described above.

The simplest and most common body part of a product package is, for example, rectangular. However, the shape of the package may be other than a rectangular shape like a box.

In this case, the shape can be, for example, polygonal or also round or oval, depending on, for example, the bending lines of the finished blank. When the shape deviates from the rectangle, the number of walls may also differ from the above, in which case, for example, there may not be separate side and end walls, but there are, for example, two curved walls with the required number of reinforcement at the side edges. Also, for example, the angle between the base and the walls can be tapered with one additional fold in the walls in the vicinity of the base. In addition, the shape may also be asymmetrical.

It is also still clear to a person skilled in the art that the product packaging can be of a material other than recyclable fiber material. In this case, the body part of the product package can be made of a foldable material other than corrugated cardboard. The body part of the product package can be made of, for example, various cardboards, cartons or papers or also a braided material, or combinations of different materials.

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Claims (5)

PROTECTION REQUIREMENTS A product package comprising, on the base (1), at least on the side walls (2) and the end walls (3) and on the upper edge of the walls (2, 3), the edge portions (5) forming a substantially planar freea portion folded outwards according to the bending lines (8). 6) an equipped body part, in which the body part has a storage space for the product to be packaged, characterized in that the body part comprises more than one reinforcement part (4a) to stiffen and hold the product package and to support the product package walls (2, 3), and in a shaped product package bent, each reinforcing part (4a) is arranged on the inner surface of the adjacent wall (2, 3 or 4). Product package according to claim 1, characterized in that the product package comprises a corner wall (4) between each side wall (2) and the end wall (3), and that the reinforcing parts (4a) are provided with bending lines (8) either: ) at the side edges, at the side edges of the end and side walls (2, 3) or at the side edge on the same side of all walls (2, 3, 4). Product package according to claim 1 or 2, characterized in that in the product package bent into its shape, each reinforcing part (4a) is fastened to the inner surface of the adjacent wall (2, 3 or 4) by means of an inner liner (10) attached to the inner surface N of the product package. OF O <Q 30 A product packaging blank comprising a plate-like structure made of recyclable fibrous material N with a base (1) separated by bending lines (8) and cuts (11), - walls (2, 3, 4) and edge portions (5, 6) for a product package made by folding from a product packaging blank S, characterized in that the product packaging blank has reinforcing parts (4a) formed by bending lines (8) of the walls (2, 3, 4) projecting from the side edges of the walls (2, 3, 4). Product packaging blank according to Claim 4, characterized in that the reinforcing parts (4a) are in the product packaging blank as follows: either two reinforcing parts (4a) on each side edge of the corner wall (4) or two reinforcing parts (4a) on each side wall (2) and end wall (3) at the side edge, or one reinforcing part at the side edge on the same side of all the wall parts (2, 3, 4). OF O OF O <Q 0) OF I Jami a LO O + OF O OF D