EP4090509A1

EP4090509A1 - Method for recycling a transfer product

Info

Publication number: EP4090509A1
Application number: EP21702385.2A
Authority: EP
Inventors: Markus VON BEYER; Astrid RAUH; Siegfried STENGEL; Martin Hahn
Original assignee: Leonhard Kurz Stiftung and Co KG
Current assignee: Leonhard Kurz Stiftung and Co KG
Priority date: 2020-01-30
Filing date: 2021-01-20
Publication date: 2022-11-23
Also published as: US20220040887A1; US20230173712A1; TW202136012A; CN113692338A; DE102020102310A1; TWI790529B; TW202308823A; TWI819882B; WO2021151742A1; US11597119B2

Abstract

The invention relates to a method for recycling a transfer product, having at least one carrier film, wherein a transfer layer is releasably arranged at least partly on the at least one carrier film. The following steps are carried out in the method, in particular in the following sequence: a) comminuting (10) the transfer product into transfer product chips, in particular carrier film chips, using a comminuting means or a comminuting device, said transfer product preferably being wound on a roll, and b) compressing (30) the transfer product chips, in particular carrier film chips, in order to form a compact product or extruding (31) the transfer product chips, in particular carrier film chips, in order to form an extrusion product.

Description

Process for recycling a transfer product

The invention relates to a method for recycling a transfer product.

It is known to use energy recovery for the recycling of stamping foils. Conventional polyester carrier materials have a comparatively high calorific value of approx. 34,000 kJ / kg and are therefore predestined for the production of substitute fuels. Transfer products that have already been used, consisting of carrier film and residual transfer layer, also have a high calorific value of approx. 21,000 kJ / kg. Such substitute fuels or secondary fuels are primarily used in the cement industry, but also in power plants for generating energy. Such fuels can replace fossil fuels such as coal and heavy oil.

The invention is now based on the object of specifying an improved method for recycling a transfer product.

The object is achieved by a method for recycling a transfer product having at least one carrier film, a transfer layer being at least partially detachably arranged on the at least one carrier film, and wherein in the method, in particular in the following sequence, the following steps are carried out: a) comminuting the transfer product by means of a comminuting means or a comminuting device to form transfer product snippets, in particular carrier film shreds, preferably with the transfer product wound up on a roll, b) compressing the transfer product snippets, in particular carrier film shreds, to form a compact product or extrusion of the transfer product shreds, in particular carrier film shreds, to form an extrusion product.

Such a recycling process generates at least one additional life cycle for the carrier material before it is used for energy. The consumption of crude oil, which is necessary for the production of plastics, is reduced by further life cycles. This protects the environment and at the same time reduces CO2 emissions. In addition, there is the further advantage that the recycled carrier material can be used to produce new carrier film. It is also conceivable that the recycled plastic can also be used for the production of other plastic products, for example injection molded parts and / or extrusion parts.

It is preferably provided that the transfer product is recycled both after a transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process and also during manufacture as rejects. In the event that the transfer layer of the transfer product has been at least partially transferred to a substrate to be decorated, for example a component or a sheet material or a roll material, the transfer product then has a carrier film with a residual transfer layer arranged thereon. The remaining transfer layer describes the part of the transfer layer that was not transferred to the substrate to be decorated and thus remains on the carrier film. In the case of rejects, the transfer layer remains completely on the carrier film. the The percentage by weight of the transfer layer based on the carrier film is preferably greater in the case of rejects than in the case of the transfer layer that has already been transferred. It is preferably provided that with the method the remaining transfer layer, which is essentially to be regarded as a foreign material, is removed from the carrier film, so that the carrier material is recycled as best as possible in such a way that the resulting end product can be processed in further steps and has good material properties.

In particular, it is provided that the transfer product snippets comprise transfer layer components and / or carrier film scraps. Furthermore, it is preferably possible for the transfer layer components to include paint residue and / or paint dust and / or fine material. Fine material is understood to mean particles that are coarser than dust particles, but smaller than transfer product snippets and / or carrier film snippets.

The at least one carrier film advantageously comprises a material or a combination of materials selected from: PET, PMMA, PC, PE, PVC, ABS, PU, PBS, TPU, PP, PLA, PEF and / or PAN.

The at least one carrier film preferably comprises PET as the main component, the proportion of PET in the carrier film being more than 97%, preferably more than 99.9%, particularly preferably more than 99.97%.

In order to improve the recyclability of the carrier film and also the material properties of the end product, it is preferably provided that the carrier material is as pure as possible, i.e. no other foreign substances and / or plastics that are different from the carrier material are present.

In a further embodiment, the at least one transfer layer, in particular the transfer layer components, has at least one layer or a combination of layers selected from: adhesive layer, release layer, decorative layer, metal layer, adhesive layer, primer layer, Paint layer. It is possible that the layers mentioned, in particular the decorative layer, are preferably layers that have metallic materials.

In particular, it is provided that the comminution device or the comminution means in step a) comprises at least one device or combinations of devices selected from: guillotine, shredder, cutting mill, hammer mill and / or mill.

Before step a) and after a transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer product, in particular on a film core, is preferably wound up in the form of a roll. In a further embodiment, the transfer product is sorted by type, in particular wound onto a foil core. Alternatively, the winding can also take place in the form of a roll without a film core, that is to say without a core, and / or on a film core which is removed from the film roll after winding, so that the film roll is then without a core. Such a removable film core can, for example, be part of a machine on which the transfer product is processed.

In an alternative embodiment, it is provided that the transfer product is collected by means of collecting containers, in particular collected by type. The collected transfer product can be uncut or, alternatively, also cut and / or shredded and / or compacted and / or pressed.

Single-type means that, if possible, only one transfer product is wound up and / or collected per roll. This ensures good material properties of the end product or of the compact product and / or of the extrusion product.

In particular, it is provided that before step a) and during the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration method, the transfer layer is at least partially transferred to a substrate to be decorated, a transfer product being provided as a by-product. It is then preferably a transfer product with a residual transfer layer.

It is preferably provided that before step a) and after the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer product by means of collecting containers, in particular by means of frames and / or containers and / or Transport box and / or banded bale, is collected.

Pressed transfer products, the volume of which is reduced by pressing, are preferably referred to as banded bales. In order to hold the pressed transfer products together, it is preferably provided that these are wrapped with bands so that a banded bale is provided.

In particular, the following step is carried out before step a): winding the transfer product, in particular onto a film core, so that a roll is provided.

In this context, a film core is to be understood as meaning a cardboard roll and / or a plastic roll and / or a machine part onto which the transfer product is wound. The film core can either remain in the film roll or be removed from the film roll after the film roll has been wound up.

It is also preferably provided that the following step is carried out before step a):

Collecting the transfer product by means of a collecting container, in particular by means of a frame and / or container and / or transport box and / or banded bales.

Advantageously, the following step is preferably carried out before step a): Transport of the roll and / or the collecting container by hand and / or by means of a feed device to the comminuting means or the comminuting device.

By collecting or winding up, in particular by collecting and / or winding up the transfer product according to type, it is ensured that a small proportion of foreign material is present. In particular, it is provided that, prior to step a), the transfer product has a proportion of foreign material in the range from 0% by weight to 5% by weight, preferably from 0% by weight to 1% by weight (% by weight = Weight percent = proportion of the weight in percent of the total weight). Because the transfer products are sorted, in particular sorted according to type, before the actual recycling process, the downstream recycling process can be made more efficient and the resulting compact products and / or extrusion products and / or plastic products have improved material properties.

Furthermore, it is also preferably provided that, before step a), the transfer product contains a proportion of adhesive strips and / or splice adhesive tapes in the range from 0% by weight to 0.5% by weight, preferably from 0% by weight to 0.1 Wt .-%.

When comminuting the transfer product in step a), it is provided in particular that the rolled-up transfer product is cut into film webs, the roll with the transfer product being fixed in a V-shaped trough, in particular fixed horizontally, and then by means of a knife, in particular from is cut open at the top or from below or from the side in the longitudinal direction up to the film core and the film core is removed, in particular if a film core is present. In this case, the roll is preferably cut open in such a way that the knife cuts perpendicular to a tangent of the lateral surface in the direction of the foil core. In particular when cutting from above, there is the advantage that the roll is fixed by the V-shaped trough and no further abutments are necessary to maintain the cutting pressure of the knife. It is preferably provided that this method step is carried out by means of a guillotine.

As mentioned at the beginning, the film core is preferably made of a different material than the transfer product, which is why it is preferably provided that this film core, which acts as a foreign material, is removed.

It is preferably also possible for the comminution means and / or the comminution device to cut and / or chop and / or shred and / or tear the transfer product in step a).

In one possible embodiment, it is provided that in step a) when the transfer product is comminuted, the at least one transfer layer is at least partially removed from the at least one carrier film and a mixture of transfer product snippets and / or carrier film shreds and / or transfer layer components is thus created.

It is possible that transfer product snippets are produced which have both a carrier film and at least one transfer layer. In particular, the aim is to detach as many transfer layer components as possible from the carrier film after several process steps, so that the carrier film scraps are as pure as possible. Carrier film scraps are preferably referred to as snippets from which the transfer layer has been completely removed and which are only and / or to a large extent, preferably more than 97%, preferably more than 99.9%, particularly preferably more than 99.97% consist of the carrier material.

In particular, it is provided that the transfer product snippets after step a) have a residual lacquer content in the range from 0% by weight to 100% by weight, preferably from 10% to 100% by weight, particularly preferably from 50% by weight to 100% by weight. It is also possible that paint residues comprise paint dust. Advantageously, the transfer product snippets after step a) have a fines content in the range from 0% by weight to 20% by weight, preferably from 0% by weight to 5% by weight.

In particular, it is provided that the residual paint portion and / or the fine material portion is successively reduced from method step to method step.

It is preferably provided that the transfer product snippets, in particular carrier film snippets, have a mass in the range from 0.01 mg to 100 mg, preferably from 0.5 mg to 10 mg, particularly preferably from 1 mg to 5 mg, after step a) . The mass of the transfer product snippets is particularly important for the removal of the transfer layer components in step c) by means of mechanical mechanical cleaning and / or important for the most complete possible drying of the transfer product snippets in step e) by means of a mechanical dryer.

In one embodiment it is provided that after step a), in particular before step b), the following step is carried out: c) mechanical mechanical cleaning, in particular without washing liquid, of the transfer product snippets, in particular carrier film snippets, in order to remove foreign materials and / or transfer layer components .

In particular, it is possible that after step a), in particular before step c) or step b), the following step is carried out:

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step c) or step b), is filled with the transfer product chips. A big bag is understood to be a flexible bulk goods container, which is preferably made of plastic. The big bag preferably has handles and / or loops so that the big bag can be transported or loaded by means of a crane and / or forklift truck.

The mechanical mechanical cleaning in step c) is advantageously carried out by means of friction, the transfer product snippets being in the dry state and further transfer layer components being removed.

Furthermore, it is preferably possible for the transfer product snippets to have a residual lacquer fraction in the range from 0% by weight to 100% by weight, preferably from 10% by weight to 100% by weight, particularly preferably from 50% by weight, to the transfer product snippets after step c) .-% to 100% by weight.

In particular, the following step is carried out before step b), and in particular after step c):

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step b), is filled with the transfer product chips.

In one embodiment it is preferably provided that in step b) the compression (30) takes place by means of agglomeration, in particular by means of a plastic compactor or a pelletizing press.

It is preferably possible for the transfer product snippets, in particular carrier film snippets, to be compacted and / or compacted during compaction in step b) in order to provide a compact product with a higher bulk density, in particular where the bulk density of the compact product is a factor of 1 to 20, preferably around Factor 5 to 20 higher Bulk density than the bulk density of the transfer product chips, in particular carrier film chips.

The bulk density indicates the ratio of the mass of a bulk material to its bulk volume. The space required for storing the compact product can be reduced through a higher bulk density. This also has a positive effect on the transport, since a larger mass can be transported with the same volume. The bulk density also has an influence on the process parameters of shaping processes, such as injection molding and / or extrusion.

It is also provided that the following step is carried out before the extrusion in step b):

Comminution and / or mixing and / or heating and / or drying and / or degassing and / or compression and / or buffering of the transfer product snippets, in particular carrier film shreds, in a cutter / compactor, in particular in order to increase the bulk density.

Particularly during degassing, for example, foreign substances can be removed, which are then filtered out by a filter system.

It is advantageously provided that during the extrusion in step b) the transfer product snippets, in particular carrier film scraps, are plasticized and homogenized by means of an extruder system, in particular in order to produce an extrusion product and / or granules. It is provided in particular that the transfer product snippets are heated up to their melting temperature by means of heat input and are then compressed by means of the extruder system, so that a uniform plastic melt is provided.

An extruder system here is in particular a single-screw extruder, a co-rotating or counter-rotating twin-screw extruder, a ring extruder To understand planetary roller extruder, a multi-rotation system, a plasticizing unit or another extruder system.

It is advantageously provided that during compression in step b) the transfer product snippets, in particular carrier film scraps, are plasticized by means of an extruder system, in particular in order to produce a compact product which consists of compacted transfer product snippets.

It is advantageously also provided that after the compression or extrusion in step b) the following step is carried out:

Liquid state polymerization and / or solid state polymerization to improve the material properties, in particular to increase the molecular weight and / or to increase the viscosity.

It is preferably possible that, in step b) during extrusion, the melting temperature of the transfer product snippets, in particular carrier film scraps, is in a range from 100 ° C. to 350 ° C., in particular from 150 ° C. to 320 ° C., preferably from 260 ° C. to 290 ° C, lies.

It is preferably possible that in step b) the melting temperature during the extrusion of the transfer product snippets, in particular carrier film shreds, in particular if the carrier film comprises PET as the main component, is in a range from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C , lies.

It is preferably possible that in step b) the temperature during the compression of the transfer product snippets, in particular carrier film shreds, is in a range from 25 ° C to 150 ° C, preferably from 40 ° C to 120 ° C.

In particular, it is provided that in step b) a vacuum and / or negative pressure is generated in the extruder system, which and / or which is preferably in a range from 0.01 mbar to 1013 mbar. Advantageously, the compact product and / or extrusion product after step b) has a purity in the range from 60.0% by weight to 100.0% by weight, preferably from 95.0% by weight to 100.0% by weight. %, particularly preferably from 99.0% by weight to 100.0% by weight. As already mentioned above, the purity is advantageously improved successively from step to step. The indication of the purity preferably relates to the mass fraction of the carrier material.

In particular, it is provided that, after step b), the compact product and / or extrusion product has an intrinsic viscosity in the range from 0.3 dl / g to 0.9 dl / g, preferably from 0.5 dl / g to 0.7 dl / g.

It is preferably also possible for the compact product and / or extrusion product to be colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored after step b). In particular in the case of a colorless and / or transparent and / or crystal-clear compact product and / or extrusion product, there is the advantage that this can subsequently be colored as desired.

Advantageously, the compact product and / or extrusion product after step b) is cylindrical and has a cylinder diameter in the range from 0.1 mm to 20 mm, preferably from 3 mm to 10 mm, particularly preferably from 4 mm to 6 mm, and a cylinder height in the range from 0.1 mm to 20 mm, preferably from 3 mm to 10 mm, particularly preferably from 4 mm to 6 mm. The compact product and / or extrusion product after step b) can preferably also be spherical and have a diameter in the range from 0.1 mm to 20 mm, preferably in the range from 3 mm to 10 mm, particularly preferably in the range from 4 mm to 6 mm , exhibit.

In particular, it is possible that after step b) the compact product and / or extrusion product is suitable for at least one subsequent process or a combination of processes, selected from: injection molding, Extrusion, pressing processes, compounding, chemical recycling and / or energy recovery.

It is preferably provided that the following step is carried out before step d):

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step d), is filled with the transfer product chips.

It is advantageously also possible for the following step to be carried out after step c): d) Cleaning with washing liquid of the transfer product snippets by means of at least one cleaning device or a combination of cleaning devices selected from: washer, hot washer, friction washer, wet cutting device, and / or wet cutting mill , preferably with at least one washing liquid or a combination of washing liquids and / or washing substances selected from: water, washing solution, solvents, surfactants, additives, lye / acid, abrasive additives or combinations thereof, so that the at least one transfer layer is at least partially removed from the The carrier film is removed and further transfer layer components are created.

In the case of transfer layers that are difficult to remove, such as adhesive layers and / or paint layers and / or special lacquer layers and / or metal layers and / or decorative layers, mechanical mechanical cleaning may not be sufficient to detach the transfer layer from the carrier film. During cleaning, in particular with washing liquid, the chemical and / or physical connections between the transfer layer, in particular the transfer layers, and the carrier film are advantageously made at least partially released, which facilitates the removal of the transfer layers.

It is further particularly provided that in step d) the at least one transfer layer is removed from the carrier film by means of friction. Friction is to be understood here in particular as friction that acts between the transfer product snippets and the washing liquid and / or a wall or a sieve of the cleaning device. It is preferably provided that the frictional forces acting are greater than the flaking forces of the release layer, which is preferably arranged between the carrier film and the transfer layer.

It is also possible, in particular, that in step d) the proportion of transfer product snippets in the washing liquid is in a range from 0.1% by weight to 25% by weight, preferably from 1% by weight to 10% by weight, lies.

It is advantageously provided that in step d) the further transfer layer components are removed from the washing liquid by means of at least one thermal and / or mechanical separation process, in particular filtration and / or distillation. This process step preferably takes place close to the washing process, so that the transfer layer components, some of which are very small, in particular further transfer layer components, can be prevented from dissolving and / or dispersing in the washing liquid. As a result, transfer product snippets that are as pure as possible are preferably obtained, in particular carrier film scraps, ie the proportion of foreign material or the proportion of transfer layer components in relation to the carrier material is as low as possible. In particular, it is provided that after step d) the transfer product snippets have a purity in the range from 60.0% by weight to 100.0% by weight, preferably from 95.0% by weight to 100.0% by weight , particularly preferably from 99.0% by weight to 100.0% by weight. As already mentioned above, the purity of the transfer product snippets is gradually improved from step to step. It is further preferably provided that after step d) the transfer product snippets are colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored.

It is provided in particular that the transfer product snippets, in particular carrier film shreds, have a residual moisture after step d), whereby, inter alia, components of the washing liquid also adhere to the transfer product chips, in particular carrier film shreds. The residual moisture and also the components of the washing liquid must be removed before further processing, in particular compression and / or extrusion and / or compounding. For this purpose, a drying step is advantageously carried out after cleaning with washing liquid in step d). In particular, the following step is carried out before step e):

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step e), is filled with the transfer product chips.

Furthermore, it is preferably possible for the following step to be carried out after step d): e) drying the transfer product chips by means of a mechanical dryer and / or thermal dryer, in particular in order to reduce the moisture of the transfer product chips.

It is preferably possible for the thermal dryer to have a temperature in the range from 10 ° C. to 120 ° C., preferably from 40 ° C. to 80 ° C., in step e). In particular, it is provided that after step e) the transfer product snippets have a moisture content in the range from 0% to 25%, preferably from 0% to 5%.

The transfer product snippets after step e) preferably have a purity in the range from 60.0% by weight to 100.0% by weight, preferably from 95.0% by weight to 100.0% by weight, particularly preferably from 99.0 wt% to 100.0 wt%. As already described above, the degree of purity is gradually improved from step to step.

It is further preferably provided that after step e) the transfer product snippets are colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored.

It is preferably provided that before step f), in particular after step b), the following step is carried out:

Transport of the compact product and / or the extrusion product and / or the transfer product snippets, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or Big bag, wherein the at least one transport container, in particular before step f), is filled with the compact product and / or the extrusion product and / or the transfer product snippets.

In particular, it is provided that after step a) or after step b) the following step is carried out: f) compounding of the compact product and / or the

Extrusion product, where additives are added in order to provide a compound with improved material properties. It is preferably provided that, after compounding, a compound is provided as a melt and / or as granules.

It is advantageously possible that in step f) the transfer product snippets and / or the compact product and / or extrusion product together with the additives in a compounder, in particular an extruder system, for example a single-screw extruder, a co-rotating or counter-rotating twin-screw extruder, a ring extruder, a planetary roller extruder, a Multi-rotation system, a plasticizing unit and / or another extruder system, conveyed and / or plasticized and / or homogenized.

In step f), the molten compound is advantageously further processed directly in a shaping process, in particular an injection molding process and / or pressing process and / or extrusion process. This has the advantage that the compound does not first have to be further processed into granules before it is finally processed into a plastic molded part and / or extrusion product in further processing processes, preferably in an injection molding process and / or pressing process and / or extrusion process. This eliminates the need for transport and storage. There is also the advantage that the energy consumption can be reduced since the compound is already in the molten state and therefore no longer has to be additionally melted and / or plasticized and / or homogenized for the injection molding process and / or pressing process and / or extrusion process.

It is preferably provided that in step f) when performing the shaping process, the melting temperature for the compound is in a range from 100 ° C to 350 ° C, in particular from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C , lies.

It is preferably provided that in step f) when performing the shaping process, the melting temperature for the compound, in particular when the Carrier film comprises PET as the main component, in a range from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

In particular, it is also provided that in step f) the melted compound is further processed into granules by means of strand granulation and / or underwater granulation. This process step advantageously results in high-quality plastic granules with good material properties, which can then be used as raw material in an injection molding process and / or pressing process and / or extrusion process.

It is preferably also provided that in step f) during compounding the melting temperature is in a range from 100.degree. C. to 350.degree. C., in particular from 150.degree. C. to 320.degree. C., preferably from 260.degree. C. to 290.degree.

It is preferably also provided that in step f) during compounding the melting temperature, in particular if the carrier film comprises PET as the main component, is in a range from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

Furthermore, it is also preferably provided that in step f) during compounding in the compounder, in particular an extruder system, a vacuum and / or negative pressure is generated which and / or which is preferably in a range from 0.01 mbar to 1013 mbar.

Advantageously, the compound and / or granulate after step f), especially in the case of PET as the main component, has a notched impact strength, especially measured according to Charpy at room temperature, in the range from 1 kJ / m ² to 100 kJ / m ² , preferably 5 kJ / m ² to 60 kJ / m ² .

Furthermore, it is preferably provided that, after step f), the compound and / or granulate, in particular in the case of PET, is the main component Modulus of elasticity (E-modulus), determined in particular at room temperature by means of a tensile test, in the range from 1000 MPa to 10000 MPa, preferably from 1300 MPa to 8000 MPa.

In particular, it is possible for the compound and / or granules to have a purity in the range from 20.0% by weight to 99.9% by weight, preferably from 50% by weight to 99.9% by weight, after step f) .-%, particularly preferably from 80% by weight to 99.9% by weight.

The method according to the invention is particularly suitable for recycling transfer products whose transfer layers consist of different materials than the carrier film. Such a process offers the advantage that used transfer products are not thrown away, but reprocessed, so that further life cycles arise. This offers considerable economic and ecological advantages, since there is no need to manufacture new plastics. The successive removal of the transfer layer results in the purest possible plastic material, which can be used to manufacture new carrier film and / or other plastic components.

Further embodiments of the invention are shown in the figures and described below. Show:

1: a schematic representation of a recycling process for a transfer product

2: a schematic representation of a recycling process for a transfer product

3: a schematic representation of a recycling process for a transfer product 4: a schematic representation of a recycling process for a transfer product

5: a schematic representation of a recycling process for a transfer product

In the following, the invention is explained by way of example on the basis of several exemplary embodiments with the aid of the accompanying drawings. The exemplary embodiments shown are therefore not to be understood as restrictive.

1 shows an exemplary method for recycling a transfer product having at least one carrier film, a transfer layer being at least partially detachably arranged on the at least one carrier film, and the following steps being carried out in the method: a comminution device for transfer product snippets, in particular carrier film chips, preferably wherein the transfer product is wound up on a roll, b) compression 30 of the transfer product chips, in particular carrier film chips, to form a compact product.

It is preferably also provided that in step b) an extrusion 31 of the transfer product snippets, in particular carrier film snippets, takes place to form an extrusion product.

It is preferred that before the comminution 10, in particular before step a), after a transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer product, in particular on a film core, is wound up in the form of a roll. In particular, it is also provided that before the comminution 10, in particular before step a), and after the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the Transfer product is collected by means of collecting containers, in particular by means of a frame and / or container and / or transport box and / or banded bales.

In a further embodiment it is provided that the transfer product is wound up by type, in particular onto a foil core, in the form of a roll.

As an alternative to this, the winding can also take place in the form of a roll without a film core, i.e. without a core, and / or on a film core which is removed from the film roll after winding, so that the film roll is then without a core. Such a removable film core can, for example, be part of a machine on which the transfer product is processed.

It is also provided that the transfer product can be collected by type. In this context, single-type means that only transfer products are wound or collected on the roll that are of their own type and / or have a similar nature, for example have the same carrier material. This ensures that no further foreign bodies and / or foreign materials flow into the recycling process. This also increases the quality and improves the material properties of the end product and / or compact product and / or extrusion product.

It is also provided that before the comminution 10 in the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer layer is at least partially transferred to a substrate to be decorated and a transfer product is provided as a by-product.

In particular, the following step is carried out before the comminution 10: winding the transfer product, in particular onto a film core, so that a roll is provided. In particular, this process step is carried out after the production of rejects. Transfer products are referred to as rejects if errors have occurred during their manufacture, for example a layer of the transfer layer cannot be of sufficient quality have been applied. Such rejects are not intended for sale to the customer. In order to keep the damage as low as possible, the transfer product, which is declared as scrap, is recycled so that the materials can be reused.

Furthermore, it is preferably provided that before the comminution 10, in particular in step a), the following step is carried out:

Transport of the roll by hand and / or by means of a feed device to the comminuting means or the comminuting device.

It can also be provided that during the comminution 10 of the transfer product, in particular in step a), the wound transfer product is cut into film webs, the roll with the transfer product being fixed in a V-shaped trough, in particular fixed horizontally, and then by means of a knife, in particular from above or from below or from the side, is cut in the longitudinal direction up to the foil core and the foil core is removed, in particular if a foil core is present. This has the advantage that the transfer product is quickly detached from the film core in a simple manner and can be used for further processing.

In particular, it is possible that during the comminution 10, in particular in step a), the comminution means and / or the comminution device cuts and / or chops and / or shreds and / or tears the transfer product.

It is further preferably provided that during the comminution 10, in particular in step a), of the transfer product, the at least one transfer layer is at least partially removed from the at least one carrier film and thus a mixture of transfer product chips and / or carrier film chips and / or transfer layer components is created.

After the comminution 10, in particular in step a), the transfer product snippets advantageously have a residual lacquer content in the range from 0% by weight to 100% by weight, preferably from 10% to 100% by weight, particularly preferably from 50% by weight to 100% by weight.

It is advantageously provided that the transfer product snippets after comminution 10, in particular in step a), have a fine material content in the range from 0% by weight to 20% by weight, preferably from 0% by weight to 5% by weight.

It is also preferably possible that the transfer product snippets, in particular carrier film scraps, after comminution 10, in particular in step a), have a mass in the range from 0.01 mg to 100 mg, preferably from 0.5 mg to 10 mg, particularly preferably from 1 mg to 5 mg.

In the embodiment shown in FIG. 1, the following step is preferably carried out after the comminution 10: mechanical mechanical cleaning 20, in particular without washing liquid, the transfer product snippets, in particular carrier film snippets, in order to remove foreign materials and / or transfer layer components.

In one possible embodiment, the comminution device and / or the comminution means are arranged separately from the mechanical mechanical cleaning device 20, which is why transport between the two process stations is necessary. In particular, it is provided that after the comminution 10, in particular in step a), and before the mechanical mechanical cleaning 20, in particular in step c), the following step is carried out:

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, with the at least one transport container in front of the machine mechanical cleaning 20, in particular in step c), is filled with the transfer product chips. A feed device is to be understood as meaning any transport vehicles and / or conveyor belts and / or pneumatic conveyors or the like.

During the mechanical mechanical cleaning 20, the transfer product snippets are advantageously removed, in particular in step c), preferably by means of mechanical drying, foreign materials and / or transfer layer components. The machine mechanical cleaning 20 preferably takes place after the comminution 10 in order to separate the transfer layer components produced during the comminution, in particular residues of the transfer layer, such as paint residues, paint dust and / or fine material, from the transfer product fragments.

In particular, it is provided that the machine mechanical cleaning 20, in particular in step c), takes place by means of friction, the transfer product snippets being in the dry state and further transfer layer components being removed.

Advantageously, after mechanical mechanical cleaning 20, in particular after step c), the transfer product snippets have a residual lacquer content in the range from 0% by weight to 100% by weight, preferably from 10% by weight to 100% by weight, in particular preferably from 50% by weight to 100% by weight.

It is preferably possible for the following step to be carried out before the compression 30, in particular before step b), and in particular after the mechanical mechanical cleaning 20, in particular after step c): Transport of the transfer product fragments, in particular carrier film fragments, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big Bag, the at least one transport container being filled with the transfer product chips, in particular before the compression 30.

Furthermore, it is provided in particular that during compression 30, in particular in step b), the transfer product snippets, in particular carrier film snippets, are compacted and / or compacted in order to provide a compact product with a higher bulk density, in particular the bulk density of the compact product being increased by a factor of 1 to 20 , preferably by a factor of 5 to 20 higher bulk density than the bulk density of the transfer product chips, in particular carrier film chips.

FIG. 2 shows a further method for recycling a transfer product. This method includes the steps of comminution 10, mechanical mechanical cleaning 20 and compaction 30 presented in FIG. 1, cleaning with washing liquid 40 and drying 50 taking place after mechanical mechanical cleaning 20 and before compaction 30. In particular, it is provided in this embodiment variant that after the machine mechanical cleaning 20, in particular after step c), the following step is carried out:

Cleaning with washing liquid 40 of the transfer product snippets by means of at least one cleaning device or a combination of cleaning devices, selected from: washer, industrial washer, friction washer, wet cutting device, and / or wet cutting mill, preferably with at least one washing liquid or a combination of washing liquids and / or washing substances selected from: Water, washing solution, solvent, surfactants, additives, alkali / acid, abrasive additives or combinations thereof is used, so that the at least one transfer layer is at least partially removed from the carrier film and further transfer layer components are created.

In the case of transfer layers that are difficult to remove, such as adhesive layers and / or paint layers and / or special lacquer layers and / or Metal layers and / or decorative layers, mechanical mechanical cleaning 20 may possibly not be sufficient to detach them from the carrier film. When cleaning with washing liquid 40, the chemical and / or physical connections between the transfer layer, in particular the transfer layers, and the carrier film can be at least partially dissolved, whereby the removal of the transfer layers is facilitated.

When cleaning with washing liquid 40, it is provided in particular that the at least one transfer layer is removed from the carrier film by means of friction.

After the transfer layer has been removed, the further lacquer residues and / or the further lacquer dust and / or the further fine material initially remain in the washing liquid. In order to ensure high purity for the subsequent process steps, it is provided that when cleaning with washing liquid 40, in particular in step d), the further transfer layer components are removed from the washing liquid by means of at least one thermal and / or mechanical separation process, in particular filtration and / or distillation removed.

In order to facilitate the removal of the transfer layer from the carrier film, it has proven particularly useful that when cleaning with washing liquid 40 in step d) the proportion of transfer product snippets in the washing liquid is in a range from 0.1% by weight to 25% by weight. , preferably from 1% by weight to 10% by weight.

It is also preferably provided that after the transfer layer components have been removed, they only remain in the washing liquid for a short time so that they do not dissolve and / or disperse in the washing liquid.

It is preferably provided that after cleaning with washing liquid 40, in particular after step d), the transfer product snippets have a purity in the range from 60.0% by weight to 100.0% by weight, preferably from 95.0% by weight. % until 100.0% by weight, particularly preferably from 99.0% by weight to 100.0% by weight.

In particular in order to reduce the moisture of the transfer product snippets after cleaning with washing liquid 40, in particular after step d), the following step is preferably provided:

Drying 50 of the transfer product snippets by means of a mechanical

Dryer and / or thermal dryer.

It is advantageously possible that after drying 50, in particular after step e), the transfer product snippets have a moisture in the range from 0% to 25%, preferably from 0% to 5%. The drying 50 ensures that no further substances contained in the washing liquid flow into the subsequent method step.

In addition to the subsequent method step of compression 30 shown in FIG. 2, it is preferably also possible for an extrusion 31 to be carried out. In particular during compression 30 and / or extrusion 31, it is of particular importance that the transfer product snippets to be compressed and / or extruded have a high degree of purity. In general, the purer the material to be compressed and / or extruded, the better the material properties of the compact product and / or extrusion product after compression 30 and / or extrusion 31 Density, the melting temperature, the strength, the notched impact strength, the modulus of elasticity, the shear modulus and / or the viscosity. It is therefore particularly provided that after drying 50, in particular in step e), the transfer product snippets have a purity in the range from 60.0% by weight to 100.0% by weight, preferably 95.0% by weight. to 100.0% by weight, particularly preferably from 99.0% by weight to 100.0% by weight. FIG. 3 shows a further schematic representation of a recycling process for a transfer product. This recycling process also includes the steps of comminution 10, mechanical mechanical cleaning 20 and compression 30 already presented in FIGS. 1 and 2. Instead of compression 30, extrusion 31 can also take place. After compression 30 or extrusion 31, however, compounding 60 still takes place. In an alternative embodiment, it can also be provided that the compounding 60 takes place after the comminution 10, so that the transfer product snippets are preferably compounded directly after the comminution 10. It is preferably provided that a compact product and / or extrusion product and / or transfer product snippets is / are compounded, additives being added in order to provide a compound with improved material properties. This is particularly necessary when a transfer product is initially present which has a high proportion of transfer layer. This is the case in particular when rejecting goods are produced during the process of producing the transfer product. In the case of such rejects, the carrier film of the transfer product is preferably almost completely covered with a transfer layer. If this is the case, there is a particular risk that the presented method steps of comminuting 10 and mechanical mechanical cleaning 20 will not be able to remove sufficient portions of the transfer layer. The transfer product snippets are therefore compacted with a high proportion of transfer layer, which is considered a foreign material. Due to the high proportion of foreign material, there is no pure plastic, which therefore does not have optimal material properties. In particular, by adding additives during compounding 60, the material properties can be improved so that the plastic is suitable for further processing, for example injection molding and / or pressing and / or extrusion.

In particular, it is provided that during compounding 60, preferably in step f), the compact product and / or extrusion product and / or transfer product snippets together with the additives in a compounder, in particular an extruder system, for example a single-screw extruder, a co-rotating or counter-rotating twin-screw extruder, a ring extruder, a planetary roller extruder, a multi-rotation system, a plasticizing unit and / or another extruder system, is conveyed and / or plasticized and / or homogenized.

Preferably, after compounding 60, in particular in step f), in particular if the carrier film comprises PET as the main component, the compound and / or granulate preferably has a notched impact strength, in particular measured according to Charpy at room temperature, in the range from 1 kJ / m ² to 100 kJ / m ² , preferably from 5 kJ / m ² to 60 kJ / m ² .

More preferably, after compounding 60, in particular in step f), in particular if the carrier film comprises PET as the main component, the compound and / or granulate preferably has a modulus of elasticity (E modulus), in particular determined at room temperature by means of a tensile test, in the range from 1000 MPa to 10,000 MPa, preferably from 1,300 MPa to 8,000 MPa.

It is preferably also provided that the compound and / or granulate, after compounding 60, in particular after step f), have a purity in the range from 20.0% by weight to 99.9% by weight, preferably 50% by weight. 0% by weight to 99.9% by weight, particularly preferably from 80.0% by weight to 99.9% by weight.

FIG. 4 shows a further schematic representation of a recycling process for a transfer product, with several possibilities being shown here as to how such a process can be composed. Such a recycling process, as shown in FIG. 4, is used in particular when the transfer layer of the transfer product has previously been applied to a to be decorated by a transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process Substrate has been transferred. Preference is given to cleaner or purer as possible through this recycling process Recovered plastic, which can be used, for example, as the basis for a new carrier film and / or other plastic products.

Preferably, as shown in FIGS. 1 to 3, there is initially a comminution 10 followed by a mechanical mechanical cleaning 20 : Washer, hot washer, friction washer, wet cutting device, and / or wet cutting mill provided. In this exemplary embodiment, it is also preferably provided that the at least one washing liquid comprises at least one washing liquid or combinations of washing liquids and / or washing substances selected from: water, washing solution, solvents, surfactants, additives, lye / acid, abrasive additives or combinations thereof, so that the at least one transfer layer is at least partially removed from the carrier film and further transfer layer components are created.

In order to remove the moisture generated by cleaning with washing liquid 40 from the transfer product fragments, drying by means of a mechanical dryer 51 and / or drying by means of a thermal dryer 52 is provided in particular. Other drying methods can preferably also be used. In particular, it is provided that the drying steps are carried out as often as desired and / or in any order. For example, drying with a combination of mechanical dryer 51 and thermal dryer 52 is also possible.

Preferably, after drying 50 the transfer product snippets, compression 30, preferably by means of a plastic compactor, and / or extrusion 31 of the transfer product snippets, in particular carrier film snippets, preferably by means of an extruder system, to form an extrusion product. FIG. 5 likewise shows a schematic representation of a recycling process for a transfer product, with further design variants being presented. The recycling process shown in Fig. 5 is particularly suitable for heavily contaminated, in particular contaminated with transfer layers,

Transfer products. In particular, this recycling process is intended for transfer products that have been declared as rejects. As mentioned above, such transfer products have a high proportion of transfer layers. It is also possible that transfer products are processed with this recycling process, the transfer layer of which has previously been transferred to a substrate to be decorated by means of transfer processes and / or lamination processes and / or insert molding processes and / or in-mold decoration processes however, the transfer product is primarily a transfer product which cannot be cleaned with washing liquid. Such transfer products can in particular contain crosslinked or difficult to remove lacquers. Crosslinked or difficult to remove lacquers are understood to mean layers which are irreversibly bonded to the carrier film. These are preferably polymeric release layers which have a better and / or different release behavior than conventional carrier films. Such release layers are irreversibly connected to the carrier film and a transfer layer is arranged on the release layer. The transfer layer can be detached more easily from the carrier film, in particular with a polymeric release layer, so that a higher quality decoration of a substrate to be decorated is made possible. The recycling process presented in FIG. 5 is particularly suitable for recycling heavily contaminated transfer products in order to make them further processable as uncomplicated as possible.

It is preferably provided that the steps of comminution 10, mechanical mechanical cleaning 20 and compression 30 known from FIG. 1 are carried out first. In this exemplary embodiment, after compression 30, compounding with processing in the offline method 61 and / or compounding with processing in the inline method 62 takes place. When compounding with processing in the offline method 61, in particular in step f), the molten compound is preferably further processed into granules by means of strand granulation and / or underwater granulation. It is possible that the resulting granulate is then processed further in further process steps to form a further carrier film and / or other plastic products, for example by means of injection molding and / or pressing processes and / or extrusion.

When compounding with processing in the inline method 62, in particular in step f), the molten compound is preferably further processed directly in a shaping process, in particular an injection molding process and / or pressing process and / or extrusion process.

Reference list:

10 Chopping 20 Mechanical mechanical cleaning

30 Compress

31 Extruding 40 Cleaning with washing liquid

50 drying

51 Drying with a mechanical dryer

52 Drying with a thermal dryer

60 compounding

61 Compounding and processing in the offline process

62 Inline compounding and processing

Claims

Expectations:

1. A method for recycling a transfer product comprising at least one carrier film, wherein a transfer layer is at least partially detachably arranged on the at least one carrier film, and wherein the following steps are carried out in the method, in particular in the following sequence: a) comminuting (10) the Transfer product by means of a comminution means or a comminution device to transfer product snippets, in particular carrier film shreds, preferably wherein the transfer product is wound up on a roll, b) compressing (30) the transfer product snippets, in particular carrier film shreds, into a compact product or extruding (31) the transfer product shreds, in particular carrier film shreds an extrusion product.

2. The method according to the preceding claim, characterized in that the transfer product snippets comprise transfer layer components and / or carrier film snippets.

3. The method according to claim 2, characterized in that the transfer layer components comprise paint residue and / or paint dust and / or fine material.

4. The method according to any one of the preceding claims, characterized in that that the at least one carrier film comprises a material or a combination of materials selected from: PET, PMMA, PC, PE, PVC, ABS, PU, PBS, TPU,

PP, PLA, PEF and / or PAN.

5. The method according to any one of the preceding claims, characterized in that the at least one carrier film comprises PET as the main component, the proportion of PET in the carrier film being more than 97%, preferably more than 99.9%, particularly preferably more than 99.97% , amounts to.

6. The method according to any one of the preceding claims, characterized in that the at least one transfer layer, in particular the transfer layer components, has at least one layer or a combination of layers selected from: adhesive layer, release layer, decorative layer, metal layer, bonding layer, primer layer, color layer.

7. The method according to any one of the preceding claims, characterized in that before step a) and after a transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer product, in particular on a Foil core, is wound up in the form of a roll, in particular is wound up by type.

8. The method according to claim 7, characterized in that prior to step a) and in the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer layer on a substrate to be decorated is at least partially transferred and wherein a transfer product is provided as a by-product.

9. The method according to any one of claims 7 or 8, characterized in that before step a) and after the transfer process and / or lamination process and / or insert molding process and / or in-mold decoration process, the transfer product by means of collecting containers is collected, in particular by means of a frame and / or container and / or transport box and / or banded bales.

10. The method according to any one of the preceding claims, characterized in that the following step is carried out before step a):

Winding up the transfer product, in particular on a film core, so that a roll is provided.

11. The method according to any one of the preceding claims, characterized in that the following step is carried out before step a):

12. The method according to any one of the preceding claims, characterized in that the following step is carried out before step a):

Transport of the roll and / or the collecting container by hand and / or by means of a feed device to the comminuting means or the comminuting device.

13. The method according to any one of the preceding claims, characterized in that before step a) the transfer product contains a foreign material content in the range from 0% by weight to 5% by weight, preferably from 0% by weight to 1% by weight , having.

14. The method according to any one of the preceding claims, characterized in that before step a) the transfer product has a proportion of adhesive strips and / or splice adhesive tapes in the range from 0% by weight to 0.5% by weight, preferably from 0% by weight. -% to 0.1% by weight.

15. The method according to any one of the preceding claims, characterized in that during the comminution (10) of the transfer product in step a) the wound transfer product is cut into film webs, the roll with the transfer product being fixed in a V-shaped trough, in particular fixed horizontally is, and then by means of a knife, in particular from above or from below or from the side, is cut in the longitudinal direction up to the film core and the film core is removed, in particular if a film core is present.

16. The method according to any one of the preceding claims, characterized in that in step a) the comminuting means and / or the comminuting device cuts and / or chops and / or shreds and / or tears the transfer product.

17. The method according to any one of the preceding claims, characterized in that in step a) during the comminution (10) of the transfer product, the at least one transfer layer is at least partially removed from the at least one carrier film is removed and thus a mixture of transfer product snippets and / or carrier film snippets and / or transfer layer components is created.

18. The method according to any one of claims 3 to 17, characterized in that the transfer product snippets after step a) have a paint residue in the range from 0% by weight to 100% by weight, preferably from 10% to 100% by weight, particularly preferably from 50% by weight to 100% by weight.

19. The method according to any one of claims 3 to 18, characterized in that the transfer product snippets after step a) have a fines content in the range from 0 wt .-% to 20 wt .-%, preferably from 0 wt .-% to 5 wt. -%, exhibit.

20. The method according to any one of the preceding claims, characterized in that the transfer product snippets, in particular carrier film snippets, after step a) have a mass in the range from 0.01 mg to 100 mg, preferably from 0.5 mg to 10 mg, particularly preferably from 1 mg to 5 mg.

21. The method according to any one of the preceding claims, characterized in that after step a), in particular before step b), the following step is carried out: c) mechanical mechanical cleaning (20), in particular without washing liquid, of the transfer product snippets, in particular carrier film snippets to remove foreign materials and / or transfer sheet components.

22. The method according to claim 21, characterized in that that after step a), in particular before step c) or step b), the following step is carried out:

Transport of the transfer product scraps, in particular carrier film scraps, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step c) or step b), is filled with the transfer product chips.

23. The method according to any one of claims 21 or 22, characterized in that the mechanical mechanical cleaning (20) in step c) takes place by means of friction, the transfer product snippets being in the dry state and further transfer layer components being removed.

24. The method according to any one of claims 21 to 23, characterized in that the transfer product snippets after step c) have a residual lacquer content in the range from 0% by weight to 100% by weight, preferably from 10% by weight to 100% by weight. -%, particularly preferably from 50% by weight to 100% by weight.

25. The method according to any one of the preceding claims, characterized in that before step b), and in particular after step c), the following step is carried out:

26. The method according to any one of the preceding claims, characterized in that in step b) the compression (30) takes place by means of agglomeration, in particular by means of a plastic compactor or a pelletizing press.

27. The method according to any one of the preceding claims, characterized in that during compression (30) in step b) the transfer product snippets, in particular carrier film snippets, are compacted and / or compacted in order to provide a compact product with a higher bulk density, in particular wherein the bulk density of the compact product is a has a bulk density by a factor of 1 to 20, preferably a factor of 5 to 20, higher than the bulk density of the transfer product chips, in particular carrier film chips.

28. The method according to any one of the preceding claims, characterized in that the following step is carried out before the extrusion (31) in step b):

29. The method according to any one of the preceding claims, characterized in that during extrusion (31) in step b) the transfer product snippets, in particular carrier film snippets, are plasticized and homogenized by means of an extruder system, in particular to produce an extrusion product and / or a compact product.

30. The method according to any one of the preceding claims, characterized in that after the compression (30) or extrusion (31) in step b), the following step is carried out:

31. The method according to any one of the preceding claims, characterized in that in step b) during extrusion the melting temperature of the transfer product snippets, in particular carrier film snippets, is preferably in a range from 100 ° C to 350 ° C, in particular from 150 ° C to 320 ° C from 260 ° C to 290 ° C.

32. The method according to any one of the preceding claims, characterized in that in step b) the melting temperature when extruding the transfer product snippets, in particular carrier film shreds, in particular if the carrier film comprises PET as the main component, in a range from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

33. The method according to any one of the preceding claims, characterized in that in step b) the temperature when compressing the transfer product snippets, in particular carrier film scraps, is in a range from 25 ° C to 150 ° C, preferably from 40 ° C to 120 ° C .

34. The method according to any one of claims 29 to 33, characterized in that that in step b) a vacuum and / or negative pressure is generated in the extruder system, which and / or which is preferably in a range from 0.01 mbar to 1013 mbar.

35. The method according to any one of the preceding claims, characterized in that after step b) the compact product and / or extrusion product has a purity in the range from 60.0% by weight to 100.0% by weight, preferably 95.0% % By weight to 100.0% by weight, particularly preferably from 99.0% by weight to 100.0% by weight.

36. The method according to any one of the preceding claims, characterized in that after step b) the compact product and / or extrusion product has an intrinsic viscosity in the range from 0.3 dl / g to 0.9 dl / g, preferably 0.5 dl / g to 0.7 dl / g.

37. The method according to any one of the preceding claims, characterized in that after step b) the compact product and / or extrusion product is colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored.

38. The method according to any one of the preceding claims, characterized in that after step b) the compact product and / or extrusion product is cylindrical and has a cylinder diameter in the range from 0.1 mm to 20 mm, preferably from 3 mm to 10 mm, in particular preferably from 4 mm to 6 mm, and has a cylinder height in the range from 0.1 mm to 20 mm, preferably from 3 mm to 10 mm, particularly preferably from 4 mm to 6 mm, or that after step b) the Compact product and / or extrusion product is spherical and has a diameter in Range from 0.1 mm to 20 mm, preferably from 3 mm to 10 mm, particularly preferably from 4 mm to 6 mm.

39. The method according to any one of the preceding claims, characterized in that after step b) the compact product and / or extrusion product is suitable for at least one subsequent process or a combination of processes, selected from: injection molding, extrusion,

Pressing processes, compounding, chemical recycling and / or energy recovery.

40. The method according to any one of claims 21 to 39, characterized in that after step c) the following step is carried out: d) cleaning with washing liquid (40) the transfer product snippets by means of at least one cleaning device or a combination of cleaning devices selected from: washers , Hot washer, friction washer, wet cutting device, and / or wet cutting mill, preferably using at least one washing liquid or a combination of washing liquids and / or washing substances selected from: water, washing solution, solvents, surfactants, additives, lye / acid, abrasive additives or combinations thereof is, so that the at least one transfer layer is at least partially removed from the carrier film and further transfer layer components arise.

41. The method according to claim 40, characterized in that the following step is carried out before step d):

Transport of the transfer product snippets, in particular carrier film snippets, by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or Container and / or transport box and / or banded bale and / or big bag, the at least one transport container, in particular before step d), being filled with the transfer product fragments.

42. The method according to claim 40 or 41, characterized in that in step d) the at least one transfer layer is removed from the carrier film by means of friction.

43. The method according to any one of claims 40 to 42, characterized in that in step d) the further transfer layer components are removed from the washing liquid by means of at least one thermal and / or mechanical separation process, in particular filtration and / or distillation.

44. The method according to any one of claims 40 to 43, characterized in that in step d) the proportion of transfer product snippets in the washing liquid is in a range from 0.1% by weight to 25% by weight, preferably from 1% by weight. % to 10% by weight.

45. The method according to any one of claims 40 to 44, characterized in that after step d) the transfer product snippets have a purity in the range from 60.0% by weight to 100.0% by weight, preferably 95.0% by weight. -% to 100.0% by weight, particularly preferably from 99.0% by weight to 100.0% by weight.

46. The method according to any one of claims 40 to 45, characterized in that after step d) the transfer product snippets are colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored.

47. The method according to any one of claims 40 to 46, characterized in that after step d) the following step is carried out: e) drying (50) the transfer product snippets by means of a mechanical dryer (51) and / or thermal dryer (52), especially to reduce the moisture of the transfer product snippets.

48. The method according to claim 47, characterized in that the following step is carried out before step e):

Transport of the transfer product snippets by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, the at least one transport container, in particular before step e ), is filled with the transfer product fragments.

49. The method according to any one of claims 47 or 48, characterized in that in step e) the thermal dryer has a temperature in the range from 10 ° C to 120 ° C, preferably from 40 ° C to 80 ° C.

50. The method according to any one of claims 47 to 49, characterized in that after step e) the transfer product snippets have a moisture in the range from 0% to 25%, preferably from 0% to 5%.

51.Verfahren according to any one of claims 47 to 50, characterized in that after step e) the transfer product snippets have a purity in the range of 60.0 wt .-% to 100.0 wt .-%, preferably 95.0 wt. -% until 100.0% by weight, particularly preferably from 99.0% by weight to 100.0% by weight.

52. The method according to any one of claims 47 to 51, characterized in that after step e) the transfer product snippets are colorless, transparent, crystal clear, opaque, colored, at least partially colored or colored.

53. The method according to any one of the preceding claims, characterized in that after step a) or after step b) the following step is carried out: f) compounding (60) the compact product and / or the

Extrusion product and / or the transfer product snippets, additives being added in order to provide a compound with improved material properties.

54. The method according to claim 53, characterized in that before step f), in particular after step b), the following step is carried out:

Transport of the compact product and / or the extrusion product by means of a feed device and / or by means of at least one transport container, in particular collecting container and / or frame and / or container and / or transport box and / or banded bales and / or big bag, wherein the at least one transport container, in particular before step f), is filled with the transfer product chips.

55. The method according to any one of claims 53 or 54, characterized in that that in step f) the compact product and / or extrusion product is conveyed and / or plasticized and / or homogenized together with the additives in a compounder, in particular an extruder system.

56. The method according to any one of claims 53 to 55, characterized in that in step f) the melted compound is further processed directly in a shaping process, in particular an injection molding process and / or pressing process and / or extrusion process.

57. The method according to claim 56, characterized in that in step f) when performing the shaping process, the melting temperature for the compound is in a range from 100 ° C to 350 ° C, in particular from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

58. The method according to any one of claims 56 or 57, characterized in that in step f) when performing the shaping process, the melting temperature for the compound, in particular if the carrier film comprises PET as the main component, is in a range from 150 ° C to 320 ° C , preferably from 260 ° C to 290 ° C.

59. The method according to any one of claims 53 to 55, that in step f) the melted compound is further processed into granules by means of strand granulation and / or underwater granulation.

60. The method according to any one of claims 53 to 59, characterized in that in step f) during compounding (60) the melting temperature in a range from 100 ° C to 350 ° C, in particular from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

61.Verfahren according to any one of claims 53 to 60, characterized in that in step f) during compounding (60) the melting temperature, in particular if the carrier film comprises PET as the main component, in a range from 150 ° C to 320 ° C, preferably from 260 ° C to 290 ° C.

62. The method according to any one of claims 53 to 60, characterized in that in step f) during compounding (60) in the compounder, in particular the extruder system, a vacuum and / or negative pressure is generated, which and / or which is preferably in a range of 0 .01 mbar to 1013 mbar.

63. The method according to any one of claims 53 to 62, characterized in that after step f) the compound and / or granulate, in particular if the carrier film comprises PET as the main component, has a notched impact strength, in particular measured according to Charpy at room temperature, in the range of 1 kJ / m ² to 100 kJ / m ² , preferably from 5 kJ / m ² to 60 kJ / m ² .

64. The method according to any one of claims 53 to 63, characterized in that after step f) the compound and / or granulate, in particular if the carrier film comprises PET as the main component, determines a modulus of elasticity (E modulus), in particular at room temperature, by means of a tensile test , in the range from 1000 MPa to 10000 Mpa, preferably from 1300 Mpa to 8000 Mpa.

65. The method according to any one of claims 53 to 64, characterized in that that after step f) the compound and / or granules have a purity in the range from 20.0% by weight to 99.9% by weight, preferably from 50.0% by weight to 99.9% by weight , particularly preferably from 80.0% by weight to 99.9% by weight.