Package and method for producing a package

Abstract

The invention relates to a packaging (1) comprising a packaging base (2) in the form of a packaging tray (S) with a tray edge (4) projecting all around, and a lid part (3) that is glued onto the tray edge (4). The lid part (3) consists of a self-adhesive label (5) peeled off from a carrier tape (T), to the underside (U) of which adhesive (K) is applied all around exclusively in the region of a label edge (6) to be glued onto the tray edge (4). The invention further relates to a method for producing a packaging (1).

Description

[0001] The present invention relates to a package according to claim 1 and to a method for producing a package according to independent method claim 10.

[0002] EP 2 666 728 B1 discloses a thermoforming packaging machine with a labeler. The labeler is arranged downstream of a sealing station of the thermoforming packaging machine in the production direction and is configured to apply a label to each packaging tray emerging from the sealing station, which is sealed with a top film. The respective labels are separated from a carrier layer and adhered to the lid part formed by the top film.

[0003] While in EP 2 666 728 B1 the upper film fed to the sealing station serves to close the packaging trays, the labels applied downstream by the labeller following the tray closing process carried out within the sealing station have the function of providing the sealed packages with information concerning the product contained therein and therefore have an information function.

[0004] The disadvantage is that such labeled packaging requires a relatively large amount of packaging material. Furthermore, a sealing station is required to produce the packaging.

[0005] In addition, the respective labels are coated with adhesive on their entire underside, in particular over their entire surface, to ensure secure attachment to the top film. Accordingly, to allow the respective labels to be removed from a carrier tape of a label roll, the carrier tape is coated over its entire surface, for example, with a thin silicone layer. As a result, the proportion of coating material on the carrier tape, in particular the silicone portion of the carrier tape, can be relatively high, in particular higher than 10% of the total carrier material. As a result, the carrier tape remaining after the labeling process, which consists of approximately uniform material proportions, is difficult to recycle, and certainly not as a single material.

[0006] Furthermore, label rolls are known in practice that do not require a carrier layer, i.e., consist solely of a label strip. In professional circles, such label rolls are referred to as "Linerless"called. To prevent the wound label strip from sticking together, it is provided with an adhesive on its underside, for example an adhesive strip, and with a corresponding coating on its top side, for example a silicone strip, so that the adhesive on the underside covers the coating on the top when wound up. In particular, the adhesive strips on the underside lie directly on the silicone strips along the top side, so that the label roll does not require a separate carrier layer. This does indeed allow packaging to be produced with reduced packaging material requirements. A disadvantage, however, is that the separation or cutting of labels from such a label roll can only be carried out directly on a labeling machine, and even then only with certain means, e.g. by means of a cutting knife installed on it.However, this only allows the production of straight-cut labels. Because these labels cannot be pre-cut, production times are longer. Another disadvantage is that packaging made from this material has labels with a coating on the top surface, particularly traces of silicone.

[0007] The invention is based on the object of providing, against the background of the prior art described above, a cost-effective, stable and sustainable packaging as well as a corresponding method for producing a packaging.

[0008] This object is achieved by means of a packaging according to claim 1 and by means of a method according to claim 10.

[0009] Advantageous further developments of the invention are given by the respective subclaims.

[0010] The invention relates to a packaging comprising a packaging base in the form of a packaging tray with a protruding tray rim all around, and a lid part that is glued to the tray rim. A characteristic of the invention is that the lid part consists of a self-adhesive label peeled from a carrier tape, on the underside of which adhesive is applied all around exclusively in the area of ​​a label rim that is to be glued to the tray rim. This creates a continuous bond along the tray rim, allowing the self-adhesive label to be reliably affixed to the tray rim as the lid part.

[0011] In the invention, only the label edge that rests on the tray edge is coated with adhesive all around. An adhesive layer or adhesive track formed from the adhesive can be applied all around the overlap area where the label edge and the tray edge overlap, or can be applied all around in a predetermined pattern. The adhesive layer can extend over the entire overlap area or occupy only a portion of it.

[0012] The adhesive layer or adhesive track formed all around the edge of the label seals the packaging, preferably seamlessly, along all sides of the entire edge area. This makes it impossible to access the packaging via the edge area. Furthermore, there is no possibility of a product contained in the packaging, such as fruit or vegetables, falling out of the packaging.

[0013] Applying a trace of adhesive limited to the label edge results in a relatively low adhesive content on the self-adhesive label. Overall, the amount of adhesive used for packaging is thus relatively low, allowing for the production of sustainable, cost-effective packaging. Furthermore, despite the low adhesive content, the adhesive applied all the way around the label edge, i.e., on all sides, enables sufficiently stable fixation of the self-adhesive label along the tray edge. Packaging produced in this way is therefore particularly easy to stack, with no risk of the lid sections formed by self-adhesive labels being dented by stacking.

[0014] Another advantage is that the carrier tape providing the self-adhesive labels according to the invention is provided with silicone traces corresponding to the respective adhesive traces, onto which the self-adhesive labels can be adhered and held ready for a tray-sealing process on a labeler. This means that the silicone content of the carrier tape is relatively low, so that the carrier tape material remaining after removal of the self-adhesive labels can, in principle, be recycled as a single material. In particular, the carrier tape material can be present with a silicone content of less than 10%, possibly even less than 5% of the total carrier tape material. A paper carrier tape could thus be recycled as paper despite the silicone traces provided on it due to their negligible material content.

[0015] In addition, the self-adhesive label with the partial adhesive according to the invention can also be recycled more easily.

[0016] Because the lid part of the packaging according to the invention consists of a self-adhesive label peeled from a carrier tape, it is possible, in contrast to linerless applications, to produce a lid part without a coating, in particular without traces of silicone, on its upper side. Likewise, in contrast to linerless applications, it is possible to produce self-adhesive labels with any desired contours or self-adhesive labels in any desired shapes on the carrier tape.

[0017] According to one embodiment of the invention, the adhesive is applied in the form of a continuous adhesive track running along the label edge, in the form of an adhesive track composed of adhesive segments, in the form of a dashed adhesive track, and / or in the form of a dotted adhesive track. The respective adhesive tracks extend at least along significant areas of all sides of the label edge. This ensures reliable all-round bonding on the packaging.

[0018] It would be conceivable that within the endless adhesive track and / or within the adhesive segments the adhesive is applied over the entire surface or according to a predetermined pattern, for example in a dashed, dotted, zigzag and / or wavy pattern.

[0019] One variant provides for the adhesive track to form an area of ​​adhesive that corresponds to at least 70%, preferably at least 80%, and more preferably at least 90% of the area formed by the tray edge and facing the lid part. In particular, the adhesive track essentially coincides with the overlap area formed between the tray edge and the label edge. This ensures that the lid part is very securely secured to the tray edge.

[0020] Preferably, the self-adhesive label is completely separated from the material from which the carrier tape is made. In other words, the cover part consists only of the self-adhesive label. This means that after the self-adhesive labels have been removed, the carrier tape forms a continuous strip, meaning no portion of the carrier tape remains on the undersides of the removed self-adhesive labels. Thus, a clean separation of the material occurs as soon as the self-adhesive labels are removed from the carrier tape.

[0021] According to one embodiment of the invention, the self-adhesive label has at least one tear-off tab. This is formed outside the edge of the label used for adhesion and can be used to open the packaging.

[0022] It would be expedient if the self-adhesive label had at least one tear-off perforation, in particular a tear-off perforation that runs at least partially along an inner boundary of the adhesive applied to the label edge. The tear-off perforation can be a punched tear line that runs along the inner boundary of the label edge in such a way that the label edge remains stuck to the tray edge when the packaging is opened. A section that can be torn out of the self-adhesive label along the perforation can be recycled as a monomaterial, since the adhesive portion of the self-adhesive label remains on the packaging tray. The adhesive forms a negligible material portion there, so that the packaging tray is also, in principle, recyclable as a monomaterial.

[0023] In particular, the self-adhesive label can be made of a plastic, in particular of a PP or PET film, or of a paper fiber-based material, in particular of a plastic-reinforced, paper fiber-based tape.

[0024] According to a preferred variant, the top side of the self-adhesive label facing away from the product is free of silicone. This results in a visually appealing label surface. Without silicone (or traces of silicone) on the top side of the lid, the resulting packaging can also be stacked more easily, because unsightly silicone marks are avoided.

[0025] The weight fraction of the adhesive in the material from which the self-adhesive labels are made is preferably less than 10%, in particular less than 5%, so that the self-adhesive label can be recycled as plastic or paper.

[0026] The packaging base is preferably a cardboard tray or a plastic tray. The material of the packaging base is preferably the same as the lid, i.e., the material of the self-adhesive label. This results in a sustainably produced, particularly easily recyclable, packaging.

[0027] According to one embodiment, the self-adhesive label is designed with multiple holes. The holes are distributed in such a way as to create windows through which the products contained in the packaging can be viewed from the outside. Furthermore, the holes ensure well-ventilated packaging, preventing condensation from forming inside the packaging.

[0028] It would be conceivable for the self-adhesive label to be transparent. The self-adhesive label would then be positioned outside the label edge, i.e., above the product packaged underneath, forming a window, allowing consumers to easily inspect the packaging contents.

[0029] It is conceivable for the self-adhesive label to be printed with a motif on its top side, for example, a motif depicting the packaged product. The motif is particularly intended as a readable information carrier. A code containing information relating to the packaged product, such as a barcode, is particularly suitable as a motif.

[0030] According to one embodiment of the invention, the self-adhesive label comprises a detectable marking on its upper side for a controlled tray closing process. Such a marking can be detected by a sensor device, and the measurement obtained thereby can be used for the purpose of precisely applying the self-adhesive label to the edge of the packaging tray.

[0031] One variant provides for the shell rim and the adhesive line to be essentially in the shape of a square, a rectangle, or a round or oval ring. In particular, a square shape with rounded corners or a rectangular shape with rounded corners would be suitable.

[0032] The invention further relates to a method for producing packaging consisting of a packaging base in the form of a packaging tray with a tray edge projecting all around, and a lid part glued to the tray edge. The method according to the invention provides that, to form the lid part, a self-adhesive label, to the underside of which adhesive is applied all around exclusively in the area of ​​a label edge to be glued to the tray edge, is separated from a carrier tape of a provided label roll and glued to the tray edge of the packaging tray as the lid part. This creates a reliable all-round bond along the tray edge.

[0033] Furthermore, relatively little adhesive is required to produce the packaging, as adhesive is only applied along the label edge facing the tray edge, while the surface of the self-adhesive label facing the product is free of adhesive. In addition, the carrier tape material can therefore be manufactured with a very low silicone content overall, in particular with a silicone content of less than 5% of the total carrier tape material, because silicone areas on the surface of the carrier tape can be reduced in area to accommodate the adhesive partially applied to the underside of the self-adhesive label, i.e., only in the area of ​​the label edge.

[0034] Furthermore, the self-adhesive labels provided on the carrier tape, which are themselves used as lidding components according to the invention, can be produced in any desired label shape or with any desired label contour, and are particularly characterized by a silicone-free top surface. Because the self-adhesive labels are separated from the carrier tape, the latter remains as a continuous strip, creating a clean material separation between the self-adhesive label material and the carrier tape material. This also means that prefabrication of the carrier tape is minimally labor-intensive.

[0035] One variant provides that, when the self-adhesive label is separated from the carrier tape, an adhesive strip formed on the underside of the self-adhesive label is separated from a correspondingly formed silicone strip on the carrier tape. This means that only a small amount of silicone is required on the carrier tape. It is conceivable that the silicone content on the carrier tape could be less than 5% of the total carrier tape material, which would make the carrier tape material easier to recycle. In particular, a paper carrier tape with a silicone content of less than 5% can be recycled as paper.

[0036] In particular, to produce the label roll for the respective self-adhesive labels, the adhesive is applied to a label layer in the form of an endless adhesive track running along the respective label edge, in the form of an adhesive track composed of adhesive segments running along the respective label edge, in the form of a dashed adhesive track running along the respective label edge, and / or in the form of a dotted adhesive track running along the respective label edge. Within the endless adhesive track and / or within the respective adhesive segments, the adhesive can be applied over the entire surface or in a predetermined pattern.

[0037] Preferably, by separating the self-adhesive label from the carrier tape, the self-adhesive label is completely separated from the material from which the carrier tape is made. This means that when the self-adhesive label is removed from the carrier tape, no sections of the carrier tape remain attached to the underside of the self-adhesive label, but rather the carrier tape remains as a continuous tape. The lid part thus consists only of the material of the self-adhesive label, resulting in a sustainable packaging with reduced material and weight.

[0038] In particular, it can be provided that by separating all self-adhesive labels from the carrier tape of the label roll, a carrier tape material with a silicone content of less than 10%, preferably less than 7%, more preferably less than 5%, remains. Such residual carrier tape material could be easily shredded, in particular, directly at the packaging production site, for example, using a knife device associated with the labeler, in order to be more suitable for logistical purposes in shredded form.

[0039] According to an advantageous process step, holes are punched into the self-adhesive labels. The holes can be produced in a 3x4, 4x4, or 5x5 format, for example, which allows for good ventilation in the finished packaging and makes its contents more visible.

[0040] A suitable process step would be to punch at least one tear-off perforation into the self-adhesive label. The perforation is preferably produced in the form of a tear-off line running directly adjacent to the inner edge of the adhesive strip. This would allow an inner, unadhesive section of the self-adhesive label to be torn out along the tear-off line to open the packaging, so that the edge of the label with the adhesive strip remains adhered to the edge of the packaging tray.

[0041] It would be conceivable that at least one detectable marking for a controlled tray closing process is produced on the carrier tape and / or on the self-adhesive labels attached to it.

[0042] Because the adhesive on the packaging according to the invention is limited to the overlap area formed between the label edge and the tray edge, meaning that the maximum area occupied by the adhesive is equal to the overlap area, and the process according to the invention can therefore produce packaging with lid parts made of self-adhesive labels with a reduced adhesive content, there is increased savings potential, as relatively little adhesive is used overall and, furthermore, a correspondingly reduced silicone content on the carrier tape is possible. Nevertheless, this allows for the production of very stable packaging that is easily stackable for logistical purposes.

[0043] This cost-saving potential is also accompanied by the advantageous recyclability of the materials used, since the overall material content of adhesive or silicone is negligible in the packaging material or in the material of the remaining carrier tape. Furthermore, the invention results in advantages in the production of contoured label shapes as well as optical advantages for the lid parts made from self-adhesive labels without traces of silicone.

[0044] It is conceivable that a label roll used for the packaging according to the invention or for the method according to the invention for producing a packaging according to the invention is produced as follows: Providing a material web with a carrier layer and a label layer, wherein the label layer is adhered to the carrier layer by means of adhesive, punching or lasering the label layer in order to define self-adhesive labels on the carrier layer with a shape predetermined by the punching or lasering, so that the self-adhesive labels are provided with adhesive all around on their undersides exclusively in the region of a label edge to be adhered to a tray edge, peeling off the punched grid formed by punching or lasering the label layer so that individual self-adhesive labels with the predetermined shape remain stuck to the carrier layer, winding up the material web prefabricated by punching or lasering to form a label roll with self-adhesive labels.

[0045] The invention is explained in more detail with reference to the following figures. They show: Figure 1 shows a packaging with a lid part designed as a self-adhesive label in perspective view, Figure 2 shows a view of the packaging shown in section AA from Figure 1 , Figure 3A shows an isolated representation of a lid part designed as a self-adhesive label, Figure 3B shows an isolated representation of a further lid part designed as a self-adhesive label, Figure 3C shows an isolated representation of a further lid part designed as a self-adhesive label, Figure 4 shows a label roll with self-adhesive labels on a carrier tape, Figure 5 shows a label roll with self-adhesive labels on a carrier tape, Figure 6 shows a carrier tape in an isolated representation, and Figure 7 shows a labeler for closing provided tray parts with lid parts.

[0046] Identical components are provided with the same reference numerals throughout the figures.

[0047] Figure 1shows a finished packaging 1. The packaging 1 comprises a packaging base 2 and a lid part 3, which is glued to a tray edge 4 of the packaging base 2. The packaging base 2 of the packaging 1 is in the form of a packaging tray S, which is filled with a product P, here with tomatoes. The lid part 3 consists of a carrier tape T (see Figures 4 and 5 ) peeled off self-adhesive label 5. The self-adhesive label 5 forms a label edge 6, which is coated with adhesive K (see Figure 2 ) in order to glue the lid part 3 to the tray edge 4 of the packaging base 2 in the area of ​​the label edge 6, which rests on the tray edge 4.

[0048] According to Figure 1 The self-adhesive label 5 has a tear-off tab 7 protruding from the label edge 6. In addition, Figure 1Ventilation holes 8 ensure air circulation. A readable motif 10 in the form of a barcode is provided on the lid part 3.

[0049] According to Figure 1 An inner region 9 of the self-adhesive label 5, surrounded by the label edge 6, is transparent. This creates a window allowing the products P contained in the packaging tray S to be viewed through the lid part 3.

[0050] Figure 2 shows the packaging 1 from Figure 1 On average AA. In Figure 2 It is shown that the self-adhesive label 5 has adhesive K on its underside U only in the area of ​​the label edge 6 in order to be attached to the tray edge 4. On the underside U of the inner area 9, however, there is no adhesive K and also no separating or protective layer additionally attached to the underside U of the self-adhesive label 5 by means of adhesive K. Rather, the self-adhesive label 5 has Figure 2in the inner region 9 has a single-layer structure, without adhesive K on its underside U.

[0051] The Figures 3A to 3C show self-adhesive labels 5 with differently formed adhesive traces 11a to 11c.

[0052] Figure 3A shows the lid part 3 in an isolated, schematic view from above. The lid part 3, designed as a self-adhesive label 5, has, in the area of ​​the label edge 6 to be adhered to the tray edge 4, adhesive K in the form of an endless adhesive track 11a running all the way around the tray edge 4 of the packaging tray S and fully coated with adhesive K. The adhesive track 11a has a track width W, which is, for example, 1 cm. The track width W of the adhesive track 11a can correspond to a width B of the tray edge 4 (see Figure 2 ) or slightly narrower or wider than these.

[0053] Furthermore, Figure 3Aa tear perforation 12 for opening the packaging 1 is shown. The tear perforation 12 can be in the form of a punched line and allows the inner area 9 to be easily pressed in. The tear perforation 12 is in Figure 3A formed in sections along an inner boundary 13 of the adhesive track 11a. However, the tear-open perforation 12 can also be formed along the entire inner boundary 13. This would allow the inner region 9 to be easily separated from the label edge 6 in order to open the packaging 1. The inner region 9 can then be recycled as a monomaterial without any adhesive content. The label edge 6 with adhesive K that remains stuck to the packaging tray S forms a very small weight proportion of the packaging tray S, so that the packaging tray S can also be disposed of as a high-percentage monomaterial.

[0054] It would be possible for the tear-open perforation 12 to be formed along the inner boundary 13 in such a way that separating the tear-open perforation 12 results in a flap from the inner region 9 or a portion of the inner region 9. This flap can be used to open or close the packaging. This keeps the label edge 6, which is provided with adhesive K, and the tray edge 4 isolated, so that the products P cannot come into contact with the adhesive K.

[0055] Figure 3B shows an adhesive track 11b running all around the edge of the label 6, which is composed of adhesive segments K1 to K4 present on all sides. Figure 3BAdhesive K is applied over the entire surface within the respective adhesive segments K1 to K4. In corner areas of the label edge 6, gaps L are provided between the adhesive segments K1 to K4, in which no adhesive K is applied. Despite these adhesive-free areas, reliable all-round bonding can be achieved thanks to the adhesive segments K1 to K4 provided on all sides.

[0056] Figure 3C shows an adhesive track 11c running all the way around the label edge 6, within which gaps L alternate with adhesive strips of adhesive K. This striped adhesive track 11c also creates a reliable all-round bond, allowing the lid part 3 to be securely attached to the packaging base 2.

[0057] Figure 4shows a label roll 13a. The label roll 13a has a carrier tape T and self-adhesive labels 5 glued thereon. The self-adhesive labels 5 of the label roll 13a are glued to the carrier tape T by means of the adhesive track 11a to 11c formed on the underside U of the adhesive K along silicone tracks 14 produced accordingly on the carrier tape T (see Figure 6 ) glued on. The silicone traces 14 are thus also formed all around. The adhesive traces 11a to 11c made of adhesive K on the underside U of the self-adhesive labels 5 thus coincide with the silicone traces 14 made of silicone along the carrier tape T. Along the inner region 9, the self-adhesive labels 5 are not glued to the carrier tape T, but lie unconnected on the carrier tape T in this region 9. A motif 10, for example a barcode, is provided on an upper side O of the self-adhesive labels 5.

[0058] In addition, Figure 4 a self-adhesive label 5 separated from the carrier tape T with the adhesive track 11a to 11c made of adhesive K formed on its underside U.

[0059] Figure 5 shows another label roll 13b. The Figure 5 Self-adhesive labels 5 stuck on the carrier tape T have, compared to the Figure 4 The self-adhesive labels 5 shown have a different geometry. These self-adhesive labels 5 are also glued to the carrier tape T along silicone tracks 14 made all around it by means of the adhesive tracks 11 made of adhesive K on their underside U. The self-adhesive labels 5 made of Figure 5 optionally have a marking 15 on their upper side O that can be detected by a sensor for a controlled tray closing process.

[0060] In addition, Figure 5a self-adhesive label 5 separated from the carrier tape T with an adhesive track 11a to 11c made of adhesive K formed on its underside U.

[0061] The respective self-adhesive labels 5, which are produced in accordance with Figures 4 and 5 are glued to the respective carrier tape T, can have any prefabricated label shapes, in particular form a desired lid geometry with regard to the geometry of the packaging tray S to be sealed therewith.

[0062] Figure 6shows the carrier tape T in an isolated representation, ie without self-adhesive labels 5 glued thereto. It can be seen that the silicone tracks 14 produced on the carrier tape T are produced at a distance from one another. During the production of the self-adhesive labels 5, a label layer (not shown) with correspondingly formed adhesive tracks 11a to 11c can be attached along the silicone tracks 14. This label layer can then be cut by means of punching or lasering in order to produce self-adhesive labels 5 with a desired self-adhesive label shape on the carrier layer T. The punched grid formed along the label layer is removed, so that after punching or lasering, only individual self-adhesive labels 5 remain on the carrier layer T, for example in the form of the Figure 4 and / or Figure 5The now prefabricated material web consisting of the carrier web T and the self-adhesive labels 5 cut to size is then wound up to be fed as a label roll 13a, 13b to a labeller 16 (see Figure 7 ) to be used.

[0063] Figure 6 shows that the silicone content on the carrier tape T created by the silicone traces 14 only accounts for a small proportion of the total carrier tape material, in particular, it can be less than 5% of the total carrier tape material. This means that, for example, a paper carrier tape T can be recycled as paper despite the silicone traces 14 created on it.

[0064] Figure 7 shows a labeler 16 with a feeding device 17, which according to Figure 7as a line combiner. By means of the feeding device 17, the packaging bottom parts 2 loaded with product P, which are not yet provided with a lid part 3, are fed to the labeler 16. Two guide rails 18 are positioned converging to each other in such a way that

[0065] in the production direction R downstream end of the guide rails 18, a gap or opening is created for packaging bottom parts 2, which is only slightly wider than the width of the packaging bottom parts 2 themselves.

[0066] This allows the packaging bottoms 2, which are transported on the feed device 17 by means of a conveyor belt 19 running thereon, to be precisely fed to the labeler 16. This, in turn, enables a self-adhesive label 5 from the label roll 13a, 13b, after being removed from the carrier tape T, to be precisely adhered to a fed packaging bottom 2 in order to seal the packaging bottom 2.

[0067] A sensor 20, provided on the labeler 16, can detect a leading edge of a packaging base 2 to be labeled and sealed while the packaging base 2 is being transported along the guide rails 18. The sensor 20 can be designed as a light barrier or proximity sensor and is connected to a controller 21 and transmits the signal, namely the detection of the leading edge of the packaging base 2, to the controller. The controller 21 controls the movement of the self-adhesive label 6 to be dispensed by means of the speed and path of the label roll 13a, 13b attached to the labeler 16 toward and along a dispensing edge 22 in order to detach the self-adhesive label 5 from the carrier tape T and apply it to the packaging base 2.

[0068] Preferably, the speed of the label roll 13a, 13b during the dispensing process onto the packaging base 2 is identical to the speed of the conveyor belt 19.

[0069] Upstream of the labeler 16, a stopper device 23 is arranged on the feed device 17 in front of the guide rails 18 to stop the packaging bases 2 while the conveyor belt 19 is running. Stopped packaging bases 2 can thus be released piece by piece for the labeling process, ie, for the tray closing process on the labeler 16.

Claims

1. Packaging (1) comprising a packaging base (2) in the form of a packaging tray (S) with a tray edge (4) projecting all around, and a lid part (3) glued to the tray edge (4), characterized in that the lid part (3) consists of a self-adhesive label (5) peeled off from a carrier tape (T), on the underside (U) of which adhesive (K) is applied all around exclusively in the area of ​​a label edge (6) to be stuck onto the tray edge (4).

2. Packaging according to claim 1, characterized in that the adhesive (K) is in the form of an endless adhesive track (11a) running along the label edge (6), in the form of an adhesive track (116) composed of adhesive segments (K1-K4), in the form of a dashed adhesive track (11c) and / or in the form of a dotted adhesive track.

3. Packaging according to claim 2, characterized in thatthe adhesive trace (11a-11c) forms an area of ​​adhesive (K) which corresponds to at least 70%, preferably at least 80%, more preferably at least 90% of an area formed by the shell edge (4) and facing the lid part (3).

4. Packaging according to one of the preceding claims, characterized in that the self-adhesive label (5) is completely separated from a material from which the carrier tape (T) is made.

5. Packaging according to one of the preceding claims, characterized in that the self-adhesive label (5) has at least one tear-open tab (7) and / or at least one tear-open perforation (12), in particular a tear-open perforation (12) which runs at least in sections along an inner boundary (13) of the adhesive (K).

6. Packaging according to one of the preceding claims, characterized in thatthe self-adhesive label (5) is made of a plastic, in particular PP or PET, or of a paper fiber-based material, in particular of a plastic-reinforced, paper fiber-based material.

7. Packaging according to one of the preceding claims, characterized in that an upper side (O) of the self-adhesive label (5) is free of silicone.

8. Packaging according to one of the preceding claims, characterized in that the packaging base (2) is a cardboard tray or a plastic tray.

9. Packaging according to one of the preceding claims, characterized in that the self-adhesive label (5) is formed with several holes (8).

10. A method for producing a packaging (1) which is produced from a packaging base (2) which is in the form of a packaging tray (S) with a tray edge (4) projecting all around, and from a lid part (3) glued onto the tray edge (4), characterized in thatTo form the lid part (3), a self-adhesive label (5), on the underside (U) of which adhesive (K) is applied all around exclusively in the area of ​​a label edge (6) to be glued to the tray edge (4), is separated from a carrier tape (T) of a provided label roll (13a, 13b and is glued as a lid part (3) onto the tray edge (4) of the packaging tray (S).

11. Method according to claim 10, characterized in that when separating the self-adhesive label (5) from the carrier tape (T), an adhesive track (11a-11c) formed from adhesive (K) on the underside (U) of the self-adhesive label (5) is separated from a silicone track (14) correspondingly formed on the carrier tape (T).

12. Method according to claim 10 or 11, characterized in thatto produce the label roll (13a, 13b) for the respective self-adhesive labels (5), the adhesive (K) is applied to a label layer in the form of an endless adhesive track running along the respective label edge (6), in the form of an adhesive track (116) running along the respective label edge (6) and composed of adhesive segments (K1-K4), in the form of a dashed adhesive track running along the respective label edge (6) and / or in the form of a dotted adhesive track running along the respective label edge.

13. Method according to one of claims 10 to 12, characterized in that by separating the self-adhesive label (5) from the carrier tape (T), the self-adhesive label (5) is completely separated from a material from which the carrier tape (T) is made.

14. Method according to one of claims 10 to 13, characterized in thatby separating all self-adhesive labels (5) from the carrier tape (T) of the label roll, a carrier tape material with a silicone content of less than 10%, preferably less than 7%, more preferably less than 5% remains.

15. Method according to one of claims 10 to 14, characterized in that holes (8) and / or at least one tear perforation (12) are punched into the self-adhesive labels.

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