Multilayered in-mould label, method for manufacturing such a multilayered label, packaging comprising such a multilayered label and method for recycling such packaging

Abstract

The present invention relates to a multilayered label comprising a first polymer layer with a first polymer material as a protective layer, an adhesion promotor, applied to the first polymer layer, a print applied to the adhesion promotor, a detachable joining layer arranged on the print, and a second polymer layer arranged on the detachable joining layer and made of a second polymer material which differs from the first polymer material. The invention furthermore relates to a packaging comprising a container made of the second polymer material and such a multilayered label, wherein the label is fused to the container by means of the second polymer layer. The invention also relates to a method for manufacturing such a multilayered label, and to a method for recycling such a packaging.

Description

[0001] Title: Multilayered in-mould label, method for manufacturing such a multilayered label, packaging comprising such a multilayered label and method for recycling such packaging

[0002] Description:

[0003] The present invention relates to a multilayered label for use as an inmould label for a packaging, in particular a plastic packaging.

[0004] Multilayered plastic labels for use as an in-mould label are generally known. Such an ink-printed label is placed in a mould, for example when manufacturing, such as blow-moulding or injection-moulding, plastic containers, such as bottles or tubs, from a polymer material before a container is produced. In this way, the container can be provided with a print and the packaging can be created. Manufacturing techniques for the packaging other than blow-moulding or injectionmoulding are also conceivable.

[0005] However, the known multilayered in-mould label complicates recycling of the packaging of which the multilayered label forms part after use. This is the case when the polymer material of the label is identical to the polymer material of which the container is made. In that case, ink of the printed label forms a contamination. If the polymer material of the label is not the same as the polymer material from which the container is made, it is difficult to fuse both materials in such a way that a faultless packaging is produced. A similar problem occurs in the case of single-layered labels.

[0006] There is thus a need for a label which is suitable to carry a print which is better suited for use as an in-mould label and / or which reduces or minimizes the degree of contamination of at least the main stream of the recycled material during recycling of a packaging of which the label forms part.

[0007] According to a first aspect, the present invention aims to provide a label which is able to fulfil this need. To this end, the invention provides a multilayered label according to Claim 1. That is to say, a multilayered label for use as an in-mould label for a packaging, the label comprising: a first polymer layer comprising a first polymer material, or simply first polymer, as a protective layer; an adhesion promotor, applied to the first polymer layer, and adapted to make a print adhere to the first polymer layer, via the adhesion promotor; a print applied to the adhesion promotor on a side of the adhesion promotor facing away from the first polymer layer; a detachable joining layer arranged on the print on a side of the print facing away from the adhesion promotor; and a second polymer layer arranged on a side of the detachable joining layer facing away from the print made of a second polymer material, or simply second polymer, which differs from the first polymer material.

[0008] In this context, a detachable joining layer is understood to mean a layer having an adhesive action between the ink of the print and the second polymer layer, wherein the adhesion is weakened during processing of the multilayered label in the in-mould production process and / or during recycling, preferably the shredding, of a packaging of which the multilayered label forms part.

[0009] The multilayered label may be attached to a container by means of the second polymer layer, e.g. be fused with the material of the container. If the same polymer is selected for the second polymer layer as the polymer from which the container is made, the label will easily fuse with the polymer material of the container during the blow-moulding or injection-moulding. If the packaging is shredded during recycling, the label is not only cut through perpendicularly, but the layers also become detached, and this at the level of the detachable joining layer. In this way, a first fraction of shreds of the first polymer layer with the adhesion promotor and ink of the print thereon, and a second fraction of shreds of the polymer of the container and of the second polymer layer, which may remain fused, and also remains fused, with the polymer of the container. The shreds of both fractions may then be sorted in a subsequent step. For example, if the polymers of both fractions have a different specific gravity, a suitable sorting method may be used. In this way, a relatively small first flow of material of the first polymer is produced, mixed with adhesion promotor and ink, and a main flow of material of the relatively very pure second polymer. Contaminations may optionally be removed from the two flows of material in a further step, for example a residue of the detachable joining layer in the second polymer. Thus, the intended object is achieved by means of the invention. It is preferred if the first polymer layer is a transparent polymer layer. During use, the first polymer layer is situated on the outwardly directed side of the packaging and the print should be visible to a viewer through the first polymer layer. The first polymer is preferably a polymer from the group which is formed by PET, PP, PE and ABS. These are polymers which are often used for dimensionally stable packagings. This designation obviously also includes variants from these polymer groups, such as RPET, RPP, RPE and RABS.

[0010] For the same reason, it is preferred if the second polymer is a polymer from the group which is formed by PET, PP, PE and ABS. This designation obviously also includes variants from these polymer groups, such as RPET, RPP, RPE and RABS. The second polymer layer is intended to be bonded to the container of the actual packaging and is therefore preferably made of the same polymer material as the polymer material from which the container for which the multilayered label is intended is made.

[0011] In an advantageous embodiment, the first polymer material is PP and the second polymer material is PET or the first polymer material is PET and the second polymer material is PP. These two polymers are often used in the packaging industry. In addition, they can easily be sorted in a water basin, because one has a higher and the other a lower specific gravity than water.

[0012] If the first polymer layer has a thickness which is situated in the range from 12 to 55 micrometres, preferably in the range from 19 to 50 micrometres, furthermore preferably in the range from 30 to 40 micrometres, wherein the second polymer layer has a thickness which is situated in the range from 5 to 70 micrometres, preferably in the range from 12 to 50 micrometres. The first polymer layer has to be sufficiently thick to provide protection for the print during use of a packaging on which the label is arranged. The minimum thickness of the first polymer layer depends on the life span of the packaging and the risk of damage to the label. On the other hand, for cost considerations, it is sensible not to make the first polymer layer thicker than is necessary to provide adequate protection. The thickness of the second polymer layer depends on the requirements with regard to fusing the second polymer layer and the packaging during the in-mould production process of the packaging.

[0013] In this case, it is preferred if the ratio of first polymer layer : second polymer layer is between 1 :4 and 5:1 , and preferably between 1 :2 and 1 :4 and furthermore preferably between 1 :1 and 1 :3. If the detachable joining layer comprises a detachable adhesive which is adapted to detach the first and second polymer layer of the label from one another, this makes it easy to separate the first polymer layer with the print from the second polymer layer during recycling. During shredding of a packaging, both layers will detach from one another during shredding as a result of the impact on the packaging, as a result of which they will be separated from one another and subsequently sorted. Because the polymer material of the second polymer layer is made of the same polymer material as the polymer material of the container, the second polymer layer and the polymer material of the container may remain attached to one another.

[0014] Preferably, the detachable joining layer comprises a coating, preferably a delamination coating. The coating is situated between the ink layer or print and the detachable adhesive. When the multilayered label is heated during the in-mould production process, the adhesive layer shrinks slightly, whereas the coating does not shrink concomitantly. This results in the connection between the adhesive and the coating being weakened. When the packaging with the label is being shredded during recycling, the forces which are being exerted on the multilayered label in the process cause the weakened connection between the adhesive and the second polymer layer to become detached. The coating layer also covers the ink layer in the shredded state of the packaging material and thus also prevents, or at least impedes the flow of material of the second polymer from being contaminated with ink.

[0015] According to a second aspect, the present invention relates to a packaging, comprising a container and a multilayered label according to the first aspect of the present invention, wherein the container is made of the second polymer material of the multilayered label, and wherein the label is fused to the container by means of the second polymer layer. By means of the container according to the second aspect, an intended object corresponding to the first aspect is achieved.

[0016] According to a third aspect, the invention relates to a method for manufacturing a multilayered label according to the first aspect of the invention. In order to achieve an object intended to be achieved by the first aspect of the present invention, the method comprises the following steps: a) providing the first polymer layer made of the first polymer material as a protective layer; b) applying the adhesion promotor, adapted to promoting adhesion of a print which is to be applied to the first polymer layer via the adhesion promotor, onto the first polymer layer; c) applying the print onto the adhesion promotor on a side of the adhesion promotor facing away from the first polymer layer; d) applying the detachable joining layer onto the print on a side of the print facing away from the adhesion promotor; and e) applying the second polymer layer which differs from the first polymer material on the detachable joining layer of the second polymer layer on a side of the detachable joining layer facing away from the print.

[0017] In this way, a multilayered label according to the first aspect of the present invention is built up step by step. The adhesion promotor ensures that an ink which is printed onto the first polymer layer adheres well to the first polymer layer. By then joining the second polymer layer with the print via the detachable joining layer, the ink of the print will adhere strongly to the first polymer layer and will be joined to the second polymer layer in a detachable way. This makes it possible to attach the multilayered label with the second joining layer in-mould to a container of a packaging, preferably to a container made of the same polymer material as that of the second polymer layer, and during shredding the print with the first polymer layer can be separated from the container with the second polymer layer and then the separated materials can be sorted. Preferably, step d) comprises two successive steps of applying a layer of delamination coating to the print and subsequently applying a detachable adhesive layer onto the layer of delamination coating.

[0018] Alternatively, a multilayered label according to the first aspect may be produced in reverse order, using a method comprising the following steps: k) providing the second polymer layer made of the second polymer material; l) applying the detachable joining layer onto the second polymer layer; m) applying the print onto the detachable joining layer on a side of the detachable joining layer facing away from the second polymer layer; n) applying the adhesion promotor onto the print on a side of the print facing away from the detachable joining layer; and o) applying the first polymer layer made of a first polymer material onto the side of the adhesion promotor facing away from the print.

[0019] In step c) and step m), respectively, the print may be an uninterrupted ink layer, as a result of which the detachable joining layer is joined to the ink layer across the entire layer.

[0020] In step c) and m), respectively, the print may alternatively be an interrupted ink layer, wherein, in step d), the detachable joining layer is provided on the ink and the part of the adhesion promotor not covered by ink, respectively, in step n), the adhesion promotor is provided on the ink and the part of the detachable joining layer not covered by ink.

[0021] Preferably, step I) comprises two successive steps of applying a detachable adhesive layer onto the second polymer layer and subsequently applying a layer of delamination coating onto the detachable adhesive layer.

[0022] According to a fourth aspect, the present invention relates to a method for manufacturing a packaging, comprising a container made of polymer material and a multilayered label according to one or more of Claims 1 to 9 which is integrally connected to the container, comprising the following steps: p) placing a multilayered label according to the first aspect of the invention in a mould in such a way that the first polymer material is situated against a wall of the mould, or is at least directed towards a nearest wall of the mould; q) closing the mould; and r) blow-moulding or injection-moulding the container, with the polymer material of the container fusing with the second polymer material of the label.

[0023] According to a fifth aspect, the present invention relates to a method for recycling packagings according to the second aspect. The method comprises the following steps: v) providing packagings according to the second aspect of the invention in a shredding device; w) shredding the packagings; and x) sorting shreds of the first polymer with ink on the one hand and shreds of the second polymer on the other hand in a sorting device.

[0024] Due to the fact that the second polymer layer of the multilayered label is fused with the container of the packaging, and the ink of the print is joined to the second polymer layer via a detachable joining layer and is joined to the first polymer layer via an adhesion promotor, the first polymer layer with the print will become detached from the second polymer layer during shredding. The second polymer layer is manufactured from the same polymer material as the container. Thus, two different types of shreds are created, namely a first fraction of shreds of the first polymer layer which contain the adhesion promotor and the ink of the print, and a second fraction of shreds made of the polymer of the container and of the second polymer layer which remains fused with the polymer of the container.

[0025] If the first polymer has a density which is higher than that of water and the second polymer has a density which is lower than that of water, or wherein the first polymer has a density which is lower than that of water and the second polymer has a density which is higher than that of water, wherein step x) comprises depositing the shredded packagings in a water basin with a bottom and a water surface; removing floating shreds from the water surface of the water basin; and collecting the shreds which have sunk to the bottom of the water basin, the materials can easily be sorted after shredding by means of the water bath.

[0026] Alternative methods which are known per se for sorting plastic waste are based on sorting the different plastic materials by means of an air stream or infrared sorting. These methods may also be used when recycling by means of a method according to the fifth aspect. Since the methods are known per se to the person skilled in the art, the various sorting options of the polymers sorted according to the invention will not be discussed here in any more detail.

[0027] The present invention will briefly be explained below by means of exemplary embodiments of a multilayered label and methods according to the present invention. In the figures: Fig. 1 shows a diagrammatic perspective view of a first embodiment of the structure of a multilayered label according to the present invention;

[0028] Fig. 2 shows a diagrammatic perspective view of a first embodiment of the structure of a multilayered label according to the present invention;

[0029] Fig. 1 diagrammatically shows a perspective view of the structure of a multilayered label 1 according to an embodiment according to the present invention. The label 1 according to the exemplary embodiment is produced by means of flexoprint, but may also be produced in other ways.

[0030] The bottom layer 2 of the label 1 is a first polymer layer, also referred to as a protective layer 2, of the label 1 and is formed by a PET film with a thickness of 30 micrometres. On the protective layer 2, there is a layer adhesion promotor, also referred to as primer layer 3. The primer layer 3 is made of a material which provides optimum adhesion of ink to the PET film. It is available in many variants and the person skilled in the art knows which primers are suitable to bring about strong adhesion of a specific ink on PET. The print 4 which is desired for the label 1 is printed onto the primer layer 3. As has been explained above, the adhesion of the print 4 to the protective layer 2 via the primer layer 3 is very strong. This strong adhesion is important, so that the ink of the print 4 remains joined to the protective layer 2 when a packaging of which the label 1 forms part is recycled after use.

[0031] Because it is important when a packaging of which the label 1 forms part is recycled after use, that the ink of the print 4 remains joined to the PET protective layer 2, a detachable layer is provided on the side of the ink facing away from the PET protective layer 2, which comprises a layer of delamination coating 5a and a detachable adhesive layer 5b. Further down in this document, the action of the detachable layer will be explained in more detail.

[0032] The top layer 6 of the label 1 is a second polymer layer 6, also referred to as fusion layer 6, of the label 1 and is formed by a PP film having a thickness of 40 micrometres. This PP fusion layer 6 is manufactured of the same material as the material of a container of the packaging of which the label 1 will be part, and will fuse with the material of the container of this packaging during manufacturing of this packaging. This is likewise explained in more detail further below in this document.

[0033] In order to manufacture labels as in Fig. 1 , the PET layer 2, also referred to as the PET film 2, may be supplied as a coil and introduced into a flexoprint machine. Subsequently, the PET film in the flexoprint machine is run past, for the labels 1 in this exemplary embodiment at least four, different printing cylinders which are provided with printing plates by means of which the primer layer 3, the ink for the print layer 4, the layer of delamination coating 5a and the detachable adhesive layer 5b are successively transferred to the PET layer 2. Finally, the resulting combination is covered by laminating it with a PP film having a thickness of 40 micrometres. If the packaging comprises multi-colour printing, there will obviously be one or more additional cylinders to transfer a second, if desired a third and possibly a fourth ink layer.

[0034] The detachable layer 5a, 5b comprises a delamination coating layer 5a and a detachable adhesive layer 5b. Once the label 1 has been manufactured, the detachable adhesive layer 5a ensures good adhesion of the ink layer 4 to the PP fusion layer 6 The layer of delamination coating 5a in this case covers the ink layer 4, so that no, or hardly any, ink can reach the shreds with the second polymer material during shredding. During manufacturing of the packaging, in this exemplary embodiment by means of in-mould blow-moulding of a plastic bottle, the label 1 is positioned in the mould with the PP fusion layer 6 directed towards the core of the mould.

[0035] Subsequently, a PP preform is introduced in the mould. The mould closes and the preform is blown to form the bottle while heating takes place. During the process, the PP material of the preform melts. When the PP material of the preform comes into contact with the PP fusion layer 6 of the label 1 , the PP material of the fusion layer 6 will likewise melt and thus form an integral layer together with the PP material of the blown bottle.

[0036] When heating the label 1 in this way, the delamination coating layer 5a and the adhesive layer 5b are also heated. The delamination coating layer 5a may continue to cure, but retains its original shape during the process. The adhesive layer 5b likewise continues to cure, but shrinks during curing. This leads to tension between the delamination coating layer 5a and the adhesive layer 5b during heating and cooling, as a result of which the connection between both layers 5a, 5b is weakened when the label 1 is attached to the bottle.

[0037] When the bottle is collected and recycled after use, the bottle is shredded in a so-called shredder. The forces which are applied to the bottle in the process result in the connection between delamination coating layer 5a and the fusion layer 6 fused with the bottle, which was already weakened during manufacturing of the bottle, and possibly during subsequent use, becoming detached. In this way, a large fraction of PP shreds of the original PP of the bottle and of the PP of the fusion layer 6 fused thereto is created, and a relatively small fraction of PET shreds with the ink of the print.

[0038] The shreds produced in this way can then be sorted according to the type of material. For example, by dropping them in a water bath, the PP shreds will start to float and the ink-contaminated PET shreds will sink to the bottom. The two streams of material can be retrieved from the basin separately and subsequently any further contamination may then be removed, if desired, before using the material as recycled raw material.

[0039] If the labels are intended to be used as labels for PET bottles, it is possible to use a PP film in the abovementioned label for the first layer or protective layer 2 instead of a PET film, and for the fusion layer 6 a PET film may be used instead of a PP film. In this case, PP shreds contaminated with ink will remain afloat and most (PET) shreds will sink to the bottom of the water basin.

[0040] Fig. 2 diagrammatically shows a perspective view of the structure of an alternative multilayered label 11 according to an embodiment according to the present invention. The label 11 according to the exemplary embodiment is likewise manufactured by means of flexoprint, but in a different order. In addition, label 11 is manufactured in order to be placed on a PET bottle.

[0041] The bottom layer 12 of the label 11 is the second polymer layer 12, also referred to as fusion layer 12, of the label 11 and is formed by a PET film having a thickness of 40 micrometres. A detachable adhesive layer 13a is provided on the PET fusion layer 12. A delamination coating layer 13b is applied to the detachable adhesive layer 13a. The ink of the print 14 for the final packaging of which the label 11 will form part is situated on the delamination coating layer 13b. A primer layer 15 is subsequently provided on the ink layer 14 as an adhesion promotor. The top layer 16, also referred to as first polymer layer or protective layer, is a PP film having a thickness of 30 micrometres.

[0042] As has been explained above, the adhesion of the print 14 to the PP protective layer 16 via the primer layer 15 is very strong. This strong adhesion is important, so that the ink of the print 14 remains joined to the PP protective layer 16 when a packaging of which label 11 forms part is recycled after use.

[0043] Because it is important that the ink of the print 14 remains joined to the PP protective layer 16 when a packaging of which the label 11 forms part is recycled, a detachable layer is provided on the side of the ink which is facing away from the PP protective layer 16 and comprises detachable delamination coating layer 13b and a detachable adhesive layer 13a. The action of the detachable layer has been explained in more detail above with reference to Fig. 1.

[0044] Here again, there is a primer layer 15 between the ink layer of the print 14 and the PP protective layer 16. The primer layer 15 is made of a material which provides optimum adhesion of ink to PP film. It is available in many variants and the person skilled in the art will know which primers are suitable to bring about a strong adhesion of a specific ink on PP.

[0045] The top layer 16 of the label 11 is a first polymer layer, also referred to as a protective layer 16, of the label 11 and is formed by a PP film having a thickness of 40 micrometres.

[0046] In order to produce labels as in Fig. 2, the PET layer 12, or PET film 12, may be supplied on a coil and introduced into a flexoprint machine. Subsequently, the PET film in the flexoprint machine is run past, for the labels 11 in this exemplary embodiment at least four, different printing cylinders which are provided with printing plates by means of which the detachable adhesive layer 13a, the delamination coating layer 13b, the ink for the print layer 14, and the primer layer 15 are successively transferred to the PET layer 12. Finally, the resulting combination is covered by laminating it with a PP film having a thickness of 40 micrometres as a protective layer 16. If the packaging comprises multi-colour printing, there will obviously be one or more additional cylinders to transfer a second, if desired a third and possibly a fourth ink layer.

[0047] The function and action of the detachable layer 13a,b correspond to those of the layer 5a, b from Fig. 1. During manufacturing of the packaging, in this exemplary embodiment by means of in-mould blow-moulding of a plastic bottle, the label 1 is positioned in the mould with the PET fusion layer 12 directed towards the core of the mould. Subsequently, a PET preform is introduced in the mould. During blow-moulding, the PET material of the preform fuses with the PET fusion layer 12, in order to form an integral PET layer.

[0048] It the labels are intended to be used as labels on a PP bottle, it is possible to use a PP film instead of a PET film in the abovementioned label for the first layer or protective layer 2, and to use a PET film instead of a PP film for the fusion layer 6. In this case, PET shreds contaminated with ink will sink to the bottom of the water basin and most (PP) shreds will remain afloat.

[0049] The method steps for manufacturing the first elaborated exemplary embodiment are illustrated in Fig.3. Those of the second exemplary embodiment in Fig. 4.

[0050] It will be clear that the present invention in this description has been illustrated and described with reference to one specific exemplary embodiment, but that many variants are conceivable which may or may not be obvious to the person skilled in the art without departing from the scope of protection of the invention, which is defined by the attached claims. Thus, it is possible to use a printing technique which differs from the flexo technique. Likewise, other polymers may be used for the film materials. Where only one ink layer has been shown in the exemplary embodiments, different inks may be provided, for example for a multi-coloured label.

Claims

CLAIMS1. Multilayered label for use as an in-mould label for a packaging, the label comprising: a first polymer layer comprising a first polymer material as a protective layer; an adhesion promotor, applied to the first polymer layer, and adapted to make a print adhere to the first polymer layer, via the adhesion promotor; a print applied to the adhesion promotor on a side of the adhesion promotor facing away from the first polymer layer; a detachable joining layer arranged on the print on a side of the print facing away from the adhesion promotor; and a second polymer layer arranged on a side of the detachable joining layer facing away from the print made of a second polymer material which differs from the first polymer material.

2. Multilayered label according to Claim 1 , wherein the first polymer layer is transparent, wherein the first polymer is preferably a polymer from the group which is formed by PET, PP, PE and ABS.

3. Multilayered label according to Claim 1 or 2, wherein the second polymer is a polymer from the group which is formed by PET, PP, PE and ABS.

4. Multilayered label according to Claim 3, wherein the first polymer material is PP and the second polymer material is PET, or wherein the first polymer material is PET and the second polymer material is PP.

5. Multilayered label according to one or more of the preceding claims, wherein the first polymer layer has a thickness which is situated in the range from 12 to 55 micrometres, preferably in the range from 19 to 50 micrometres, furthermore preferably in the range from 30 to 40 micrometres, wherein the second polymer layer has a thickness which is situated in the range from 5 to 70 micrometres, preferably in the range from 12 to 50 micrometres.

6. Multilayered label according to one or more of the preceding claims, wherein the ratio of first polymer layer : second polymer layer is between 1 :4 and 5: 1 , preferably between 1 :1 and 1 :3.

7. Multilayered label according to one or more of the preceding claims, wherein the detachable joining layer comprises a detachable adhesive which is adapted to detach the first and second polymer layer of the label from one another.

8. Packaging, comprising a container and a multilayered label according to one or more of the preceding claims, wherein the container is made of the second polymer material of the multilayered label, wherein the label is fused to the container by means of the second polymer layer.

9. Method for manufacturing a multilayered label according to one or more of Claims 1 to 7, the method comprising the following steps: a) providing the first polymer layer made of the first polymer material as a protective layer; b) applying the adhesion promotor, adapted to promoting adhesion of the ink of the print which is to be applied to the first polymer layer via the adhesion promotor, onto the first polymer layer; c) applying the print onto the adhesion promotor on a side of the adhesion promotor facing away from the first polymer layer; d) applying the detachable joining layer onto the print on a side of the print facing away from the adhesion promotor; and e) applying the second polymer layer which differs from the first polymer material on the detachable joining layer of the second polymer layer on a side of the detachable joining layer facing away from the print.

10. Method for manufacturing a multilayered label according to one or more of the preceding claims, the method comprising the following steps: k) providing the second polymer layer made of the second polymer material;l) applying a detachable joining layer onto the second polymer layer; m) applying the print onto the detachable joining layer on a side of the detachable joining layer facing away from the second polymer layer; n) applying the adhesion promotor onto the print on a side of the print facing away from the detachable joining layer; and o) applying the first polymer layer made of the first polymer material onto the side of the adhesion promotor facing away from the print.

11. Method according to Claim 9 or 10, wherein in step c) and m), respectively, the print is an uninterrupted ink layer.

12. Method according to Claim 9 or 10, wherein, in step c) and m), respectively, the print is an interrupted ink layer and, in step d) the detachable joining layer is provided on the ink and the part of the adhesion promotor not covered by ink, respectively, in step n), the adhesion promotor is provided on the ink layer and the part of the detachable joining layer not covered by ink.

13. Method for manufacturing a packaging comprising a container made of polymer material and a multilayered label which is integrally connected to the container according to one or more of Claims 1 to 7, comprising the following steps: p) placing a multilayered label according to one or more claims in a mould in such a way that the first polymer material is situated against a wall of the mould; q) closing the mould; and r) blow-moulding or injection-moulding the container, with the polymer material of the container fusing with the second polymer material of the label.

14. Method for recycling packagings according to Claim 8, comprising the following steps: v) providing packagings in a shredding device according to Claim 8;w) shredding the packagings; and x) sorting shreds of the first polymer with ink on the one hand and shreds of the second polymer on the other hand in a sorting device.

15. Method according to Claim 14, wherein the first polymer has a density which is higher than that of water and the second polymer has a density which is lower than that of water, or wherein the first polymer has a density which is lower than that of water and the second polymer has a density which is higher than that of water, wherein step x) comprises depositing the shredded packagings in a water basin with a bottom and a water surface; removing floating shreds from the water surface of the water basin; and collecting the shreds which have sunk to the bottom of the water basin.

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