MAGNEIZABLE INK FOR FUNCTIONALIZING SURFACES

Description

[0001] The present invention relates to a magnetizable ink for functionalizing surfaces, a plastic molded body comprising at least one surface functionalized with this magnetizable ink, a method for producing such a plastic molded body, the use of such a magnetizable ink for functionalizing surfaces and the use of such a plastic molded body as a component in an automobile.

[0002] Functionalization, especially the magnetization of surfaces, plays a prominent role in modern industry in the production of components and molded parts.

[0003] One application where magnetic liquids in the form of ink are used is data storage on magnetic tapes, where magnetic particles are applied to tapes and the magnetic orientation is read out as data elements, as described, for example, in the publication Magnetic Tape Production and Coating Techniques, Donald F. Eldridge, Memorex Monograph No. 4.

[0004] Related to this is the earlier MICR code technique for processing bank checks, as described in the publication "Position and Level Sensing Using Hall-Effect Sensing Technology", Gary Pepka, Allegro Microsystems.

[0005] US 2022 / 016637 concerns compositions comprising substrates containing polymeric materials or non-magnetic, paramagnetic or diamagnetic metal objects, as well as films or inks containing ferromagnetic materials, wherein the films or ferromagnetic materials are transparent.

[0006] KR 102310785 B relates to a core in which magnetic particles are aggregated by a resin or metal oxide precursor and an inorganic shell covering at least part of the surface of the core, wherein the core is a hard magnetic particle for security ink.

[0007] US 2014 / 308490 concerns a magnetizable ink containing at least 65% magnetizable particles with a modal diameter between 3 µm and 10 µm.

[0008] US 2015 / 053112 concerns an inkjet printing system comprising an ink reservoir, an ink passage, an inkjet nozzle and a variety of magnetic elements located near the ink reservoir and / or the ink passage.

[0009] If signaling is considered as a functionality, i.e., the ability of a technical component or surface to generate and emit a magnetic signal that can be detected and used by a responder or sensor, such as a Hall sensor, then typically small magnetic elements are inserted piecemeal and sequentially into the component or applied to a surface. Typical examples are position or proximity determination in mechanical elements with moving parts, such as motors, gears, or valves.

[0010] To enable magnetic signal functionality, i.e., to functionalize a component or surface by adding magnetic properties, bulky, pad-, disc-, plate- or cable-shaped elements or structures usually have to be placed or inserted piece by piece, individually and sequentially.

[0011] Such a process is time-consuming, requires manual effort, and space must be planned and taken into account during installation and integration.

[0012] Furthermore, the magnetic elements must either be selected from existing, limited shapes and geometries or specially and individually manufactured, which means additional costs and time.

[0013] For larger, non-flat surfaces that are to be magnetically functionalized, such a piecemeal, sequential application of magnets is even more inefficient, or even impractical or impossible.

[0014] The object of the present invention was therefore to overcome these disadvantages of the prior art and, in particular, to overcome the limitations and restrictions inherent in piecewise magnetic elements with regard to their limited shape, high integration effort and cost, bulkiness and volume, and thus the space occupied by the magnetic elements. In particular, an economically viable method for magnetizing larger components or surfaces that require magnetizable functionality is to be provided.

[0015] This task is to be solved in particular by providing a magnetizable ink.

[0016] In order to serve as a functional layer and replace piecemeal integrated elements, the magnetizable ink should, on the one hand, enable suitable processing for printing and casting films or layers using various techniques, and on the other hand, allow for easy curing / post-treatment of these films and layers by thermal treatment at moderate temperatures (below 120°C) that are compatible with elastomeric substrates and components.

[0017] In order to serve as such a signaling, magnetizable layer, the layers should exhibit good adhesion and flexibility on typical polymer substrates; in particular, high adhesion and flexibility on TPU is desired.

[0018] This problem was surprisingly solved by a printable liquid, i.e., an ink or paste composed of functional components and additives. The key functional components are a magnetizable material and components for achieving suitable morphological and interfacial properties of the resulting layer. This ensures good adhesion to thermoplastic elastomer substrates, particularly TPU, and good flexibility of the layer so that it can be applied to non-planar rigid surfaces or to planar surfaces that are nevertheless flexible and bendable.

[0019] In particular, this problem is solved by a magnetizable ink according to claim 1, i.e., by a magnetizable ink for functionalizing surfaces, comprising at least one magnetizable material, at least one solvent, and at least one binder, and the magnetizable material comprising magnetizable microparticles and / or nanoparticles, characterized in that the microparticles and / or nanoparticles are contained in the magnetizable ink in an amount of 40 to 50 wt.%, wherein the microparticles and / or nanoparticles are flaky.

[0020] Beneficial further training opportunities are described in the sub-requirements.

[0021] Numerous specific details are discussed below to enable a comprehensive understanding of the subject matter. However, it is obvious to the person skilled in the art that the subject matter can also be practiced and replicated without these specific details.

[0022] All features of one embodiment can be combined with features of another embodiment if the features of the different embodiments are compatible.

[0023] It is also understood that, although the terms "first," "second," etc., can be used here to describe different elements, especially different layers, these elements should not be restricted by these terms. These terms are used only to distinguish one element from another. For example, a first object or a first step could be called a second object or second step, and similarly, a second object or a second step could be called a first object or first step. The first object or first step and the second object or second step are both objects or steps, but they are not to be considered the same object or step.

[0024] The terminology used in the description of this disclosure serves only to describe certain embodiments and is not to be understood as limiting the subject matter. As used in this description and the claims, the singular forms "a", "an", and "the" are to be understood as including the plural forms unless the context clearly indicates otherwise. The reverse is also true; that is, the plural forms include the singular forms. It is also understood that the term "and / or", as used herein, refers to and includes all possible combinations of one or more of the associated listed elements.It is further understood that the terms "include", "include", "comprise" and / or "comprehensive", when used in the present description and the claims, specify the presence of the specified features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or groups thereof.

[0025] In the present description and claims, the terms "includes", "comprises" and / or "comprising" may also mean "consisting of", i.e., the presence or addition of one or more other features, steps, operations, elements, components and / or groups is excluded.

[0026] In this context, "microparticles" generally refers to particles with a mean particle size (D50) of 1 to 999 µm. Nanoparticles generally refer to particles with a mean particle size of 1 to 999 nm.

[0027] The mean particle size can be determined using the laser diffraction method according to ISO 13320-1 (2020-1).

[0028] The term "ink" also includes pastes. The viscosity of the ink can range from 1 to 10,000 mPa*s (DIN 53019-1:2008-09, DIN 53019-2:2001-02, DIN 53019-3:2008-09).

[0029] Materials used for the magnetizable particles include nickel, iron, and magnetizable alloys such as neodymium-iron-boron (Nd 2 Fe 14 B).

[0030] Preferably, the magnetizable material comprises nickel.

[0031] In addition to nickel, iron and magnetizable alloys such as neodymium-iron-boron (Nd 2 Fe 14 B), other magnetizable materials, such as cobalt and other alloys, especially of these materials, may also be present.

[0032] The magnetizable material is incorporated into the formulation in the form of microparticles and / or nanoparticles. The microparticles and / or nanoparticles can have different sizes and shapes. According to the invention, the particles are flaky.

[0033] In a preferred embodiment, the microparticles, in particular nickel microparticles, have a mean particle size of 1.5 to 15 µm.

[0034] Preferably, the microparticles, in particular nickel microparticles, have a mean particle size of 2.2 to 3 µm or of 3 to 7 µm.

[0035] In a non-inventive embodiment, spherical or ellipsoidal microparticles and / or nanoparticles are also suitable, in particular nickel microparticles, especially with particle sizes of 2.2 to 3 µm or of 3 to 7 µm or of 5 to 15 µm, wherein the size in the case of ellipsoidal microparticles and / or nanoparticles, in particular nickel microparticles, refers to the largest dimension of the particle.

[0036] According to the invention, suitable flakes, in particular nickel flakes, are those with a mean diameter of 1 to 3 µm, preferably of about 1.5 µm.

[0037] Depending on the morphology, different magnetic properties (e.g., magnetic field strength) can be achieved. Ink with flaky particles enables layers with a higher magnetic field strength normalized to the layer thickness (H [Gauss] per unit thickness [µm]).

[0038] The particle sizes are determined in accordance with ISO 13320-1 (2020-01).

[0039] The choice of solvent is not limited in principle. In particular, the solvent is not restricted to those that can dissolve all binders and additives in the magnetizable ink. The magnetizable ink can therefore be in the form of a solution, dispersion, or suspension.

[0040] In a preferred embodiment, the at least one solvent comprises ethyl acetate, propyl acetate, water and / or ethyl 3-ethoxypropionate.

[0041] The use of ethyl acetate is particularly preferred, as this is advantageous for maintaining a homogeneous morphology and topography of the layer during curing.

[0042] The minimum binder is not limited in principle, but includes all binders known to those skilled in the art as suitable, particularly those suitable for bonding magnetizable material to a wide variety of plastics. The binder may also comprise a reactive two-component or multi-component system.

[0043] Preferably, it comprises at least one binder, nitrocellulose.

[0044] The use of nitrocellulose is particularly preferred, as the resulting layers possess good scratch and abrasion resistance while also having mechanical flexibility.

[0045] The magnetizable ink may further preferably comprise at least one additive selected from rheology modifiers, deaerators, defoamers, additives to improve the printing manufacturing and subsequent optical layer properties.

[0046] According to the invention, the microparticles and / or nanoparticles, in particular the nickel microparticles, are contained in the magnetizable ink in an amount of 40 to 50 wt.% (based on the total weight of the magnetizable ink).

[0047] This preferably results in a layer with a preferred proportion of 75 to 95 wt.%, preferably 75 wt.% to 85 wt.% of microparticles and / or nanoparticles, in particular nickel microparticles (based on the total weight of the layer).

[0048] Such quantities have the advantage of a higher resulting magnetic field strength normalized to the layer thickness.

[0049] In a preferred embodiment, the binder is contained in an amount of 3.5 to 12 wt.%, preferably 10 to 12 wt.% in the magnetizable ink (based on the total weight of the magnetizable ink).

[0050] Such quantities have the advantage of a good resulting layer morphology, i.e., good mechanical properties such as adhesion and flexibility, and good magnetic properties such as a high magnetic field strength.

[0051] The present invention further relates to a plastic molded body comprising at least one surface, characterized in that the at least one surface is functionalized with a magnetizable ink as defined above.

[0052] All definitions and preferred embodiments listed above for the magnetizable ink apply analogously to the plastic molded body according to the invention.

[0053] The plastic molded part is not limited in size and shape; it can be any size or shape. The plastic molded part can also be a plastic film.

[0054] There are also no limits to the size and shape of the surface that is functionalized.

[0055] Preferably, the plastic molded body comprises a thermoplastic plastic or an elastomer, in particular a thermoplastic elastomer. Plastics are generally substances whose basic components are synthetically or semi-synthetically produced polymers, preferably with organic groups.

[0056] Elastomers are generally polymers with rubber-like elasticity that can be repeatedly stretched to at least twice their original length at 20 °C and immediately return to approximately their original dimensions after the stress required for stretching is removed. Elastomers are loosely woven, usually cross-linked, high-polymer materials that, due to the cross-linking of the individual polymer chains at the cross-linking points, cannot flow viscously at their service temperature.

[0057] Elastomers are generally produced by vulcanizing natural rubbers and synthetic rubbers. Vulcanization is the process of converting plastic, rubber-like, unsaturated or saturated polymers into a rubber-elastic state, preferably by crosslinking with sulfur or sulfur compounds. In this process, the individual polymer chains are irreversibly linked together by covalent bonds.

[0058] Some synthetic rubbers also use sulfur-free crosslinking agents as vulcanizing agents, such as peroxides, resins, bisphenols, and metal oxides (MgO, ZnO). In addition, there are also purely physical methods of crosslinking (e.g., using high-energy radiation).

[0059] Thermoplastic elastomers are generally materials that behave similarly to conventional elastomers at room temperature, but can be plastically deformed when heated, thus exhibiting thermoplastic behavior. Ideally, thermoplastic elastomers combine the performance properties of elastomers with the processing properties of thermoplastics. This can be achieved by having both soft, elastic components with high elongation and a low glass transition temperature, and hard, crystallizable segments with low elongation and a high glass transition temperature, within the macromolecules of the respective plastics (physical cross-linking). The soft and hard segments must be incompatible with each other and exist as separate phases.This can be achieved by embedding soft elastomer particles in a hard polymer matrix or by using block copolymers with incompatible hard and soft segments. Thermoplastic elastomers are therefore characterized by crosslinking points that can be reversibly cleaved by heating. Above the relevant temperature, the polymers behave like thermoplastics, below it like elastomers. Thus, their performance characteristics correspond to those of elastomers, and their processing characteristics to those of thermoplastics.

[0060] The type of plastic used in the plastic molded body according to the invention is essentially unlimited.

[0061] However, it is preferred if at least one plastic is selected from the group consisting of polyethylene, ultra-high molecular weight polyethylene (UPE), polypropylene, polyamide, polyester, aromatic polyesters, polyvinyl chloride, polyethersulfone, polyetheretherketone (PEEK), ethylene tetrafluoroethylene (ETFE), chlorinated fluoropolymers (PCTFE, ECTFE), tetrafluoroethylene hexafluoropropylene vinylidene fluoride terpolymer (THV), polyvinylidene fluoride (PVF), polyvinylidene difluoride (PVDF), perfluoroalkoxy polymer (MFA + PFA), tetrafluoroethylene hexafluoropropylene copolymer (FEP), polytetrafluoroethylene (PTFE), as well as mixtures and copolymers thereof. The plastics may also contain further additives (e.g., antistatic agents, colorants, odor absorbers, adhesion promoters, etc.).

[0062] The elastomer used in the plastic molded body according to the invention is essentially not limited.However, it is preferred if the at least one elastomer is selected from the group consisting of acrylate rubbers (AEM), ethylene-vinyl acetate rubbers (EVA), polybutadiene (BR), chlorosulfonated polyethylene (CSM), chlorinated polyethylene (CM), epichlorohydrin rubbers (ECO), chloroprene rubbers (CR), polyisoprene (IR), fluororubber (FPM, FKM, FFKM), styrene-butadiene rubbers (SBR), isobutylene-isoprene rubbers (IIR), halogenated isobutylene-isoprene rubbers (CIIR + BIIR), acrylonitrile-butadiene rubbers (NBR), partially or fully hydrogenated acrylonitrile-butadiene rubbers (HNBR), blends of NBR with PVC (NBR-PVC), partially or fully hydrogenated carboxylated Acrylonitrile butadiene rubbers, ethylene propylene diene rubbers (EPDM), ethylene propylene rubbers (EPM), natural rubber (NR), brominated isobutylene paramethyl styrene rubbers, silicone rubbers (MVQ), and mixtures, blends and copolymers thereof.

[0063] The thermoplastic elastomer used in the plastic molded body according to the invention is essentially unlimited. However, it is preferred if the at least one thermoplastic elastomer is selected from the group consisting of thermoplastic copolyamide (TPA-A), thermoplastic polyester elastomer (TPE-E), thermoplastic olefin-based elastomers (TPE-O), styrene block copolymers (TPE-S), thermoplastic urethane-based elastomers (TPE-U or TPU), thermoplastic vulcanizates, or cross-linked thermoplastic olefin-based elastomers (TPE-V).

[0064] The at least one elastomer particularly preferably comprises ethylene propylene diene rubbers (EPDM), acrylonitrile butadiene rubbers (NBR), natural rubber (NR), isobutylene isoprene rubbers (IIR) and / or halogenated isobutylene isoprene rubbers (CIIR or BIIR), as well as mixtures, blends and copolymers thereof.

[0065] The at least one plastic preferably comprises polyethylene (PE), ultra-high molecular weight polyethylene (UPE), tetrafluoroethylene hexafluoropropylene vinylidene fluoride terpolymer (THV), polyvinylidene difluoride (PVDF) and / or tetrafluoroethylene hexafluoropropylene copolymer (FEP), as well as mixtures and copolymers thereof.

[0066] The plastic preferably comprises a thermoplastic polyurethane, in particular a thermoplastic polyurethane elastomer.

[0067] Particularly preferred thermoplastic polyurethane elastomers include, for example, products from the Dupont Intexar series or the Covestro Platilon series.

[0068] In a preferred embodiment, the plastic molded body comprises a plastic film, wherein at least one surface of the plastic film is functionalized with the magnetizable ink.

[0069] If the plastic molded body is a plastic film, preferably at least one of the largest surfaces of the plastic film is the surface that is functionalized.

[0070] In a preferred embodiment, the plastic molded body comprises a plastic molded body which is formed by folding or rolling the plastic molded body, in particular a plastic film, wherein at least one surface of the plastic molded body, in particular the plastic film, is functionalized, or by stacking several plastic molded bodies, in particular several plastic films, wherein at least one surface of the respective plastic molded bodies, in particular the plastic films, is functionalized, forming a plastic molded body comprising several layers of the magnetizable ink.

[0071] Regarding the magnetic properties, the magnetic field strength or magnetic flux at the edges is proportional to the thickness of the printed elements and layers and can therefore be adjusted to adapt the signal functionality to the specific requirements of a sensing device, a sensor such as a Hall or magnetoresistive (GMR) sensor, or other detector types. The magnetic properties of the printed elements or layers can be proportionally increased by stacking magnetic layers or cut-out elements on top of each other, or by utilizing their flexible properties through layer folding. Coil-shaped, roller-shaped, or cylindrical three-dimensional magnetic elements can also be produced.

[0072] The plastic molded body preferably comprises a component in an automobile, for example a drive belt or an interior component, in particular an upper material, a hose for gaseous or liquid media or a suspension / damping element.

[0073] Such an interior component could be, for example, part of a seat or gearshift lever, but also a film for coating part of an interior component.

[0074] The plastic body can also be a component of an industrial application or machine, such as a conveyor belt, a hose for gaseous or liquid media, or a suspension / damping element.

[0075] The present invention further relates to a method for producing a plastic molded body as described above, comprising applying a layer comprising or consisting of the magnetizable ink as described above to at least one surface of the plastic molded body, wherein first, a separate layer comprising or consisting of the magnetizable ink is formed and this layer is applied as a whole to at least one surface of the plastic molded body, or that the layer comprising or consisting of the magnetizable ink is formed directly on at least one surface of the plastic molded body, and the layer, comprising or consisting of the magnetizable ink, is bonded to the plastic mold body by thermal treatment or irradiation.

[0076] All definitions and preferred embodiments listed above for the magnetizable ink and the plastic mold body apply analogously to the method according to the invention.

[0077] The separate layer, comprising or consisting of the magnetizable ink, can be produced by various printing techniques, but can also be cast.

[0078] The application to at least one surface of the plastic molded body can be carried out, for example, using a typical film application device.

[0079] However, it is also possible to directly print on the surface of the plastic molded body with the magnetizable ink.

[0080] The printed magnetizable structures or layers are preferably not rigid, but flexible and / or stretchable, and can be applied to non-planar surfaces or used with flexible elements such as elastomer components. Furthermore, the structures or layers are preferably non-brittle and exhibit good and strong adhesion to the plastic molded body.

[0081] The layers are preferably thermally post-treated. This thermal treatment can include methods known to those skilled in the art, such as oven drying, continuous / hot air drying, hot plate drying, and infrared irradiation.

[0082] The thermal treatment preferably comprises treatment at temperatures below 300°C. Temperatures below 180°C are preferred, and temperatures below 140°C are particularly preferred.

[0083] The irradiation preferably includes irradiation with light in the infrared wavelength range.

[0084] The process can further include the step of stacking plastic molded bodies, in particular plastic films, wherein at least one surface of the respective plastic molded bodies, in particular the plastic films, has been functionalized with the magnetizable ink.

[0085] The process can further include the step of folding or rolling plastic molded bodies, in particular plastic films, wherein at least one surface of the respective plastic molded bodies, in particular the plastic films, has been functionalized with the magnetizable ink.

[0086] The present invention further relates to a plastic molded body obtainable by the method defined above.

[0087] The present invention further relates to the use of a magnetizable ink as described above for the functionalization of surfaces in automobiles or automobile components, in particular drive belts, upper material, a hose for gaseous or liquid media or a suspension / damping element and / or interior components, in particular for localizing structural defects, position detection, increment signaling and / or positioning.

[0088] Such an interior component could be, for example, part of a seat or gearshift lever, but also a film for coating part of an interior component.

[0089] The present invention further relates to the use of a magnetizable ink as described above for the functionalization of surfaces in an industrial application or machine, such as a conveyor belt, a hose for gaseous or liquid media or a spring / damping element.

[0090] The present invention further relates to the use of a plastic molded body as described above or obtainable by the method described above as a component in an automobile, in particular as a drive belt, as a top material, as a hose for gaseous or liquid media or as a suspension / damping element and / or as an interior component.

[0091] Such an interior component could be, for example, part of a seat or gearshift lever, but also a film for coating part of an interior component.

[0092] The present invention further relates to the use of a plastic molded body as described above or obtainable by the method described above as a component of an industrial application or machine, such as a conveyor belt, a hose for gaseous or liquid media or a suspension / damping element.

[0093] All definitions and preferred embodiments listed above for the magnetizable ink and the plastic molded body apply analogously to the respective uses according to the invention.

[0094] The invention is explained in more detail below using non-limiting examples. Examples

[0095] An example of an ink has the following composition: Weight % Ni wt% ethylcellulose % weight solvent 42,3% 11,5% 46,2%

[0096] Figure 1 schematically shows tested nickel microparticles of different morphologies. (a) non-inventive ellipsoidal particles with a mean particle diameter of 10 µm. (b) non-inventive ellipsoidal particles with a mean particle diameter of 2.5 µm. (c) flaky particles with a mean particle diameter of 1.5 µm.

[0097] All nickel microparticles shown are suitable for use in the magnetizable ink according to the invention and can be selected according to the desired properties.

[0098] Figure 2 shows a schematic representation of the method according to the invention.

[0099] First, a layer comprising the magnetizable ink according to the invention is printed separately. This layer, comprising the magnetizable ink according to the invention, is then applied to a surface of the plastic molded body. The surface can be a non-flat surface (a) or a flat but flexible surface (b).

[0100] Figure 3 Figure 1 shows a schematic representation of a method according to the invention for producing plastic molded bodies with more than one layer of magnetizable ink.

[0101] First, a layer comprising the magnetizable ink according to the invention is applied to a thin substrate, for example, a plastic film. The plastic film thus functionalized can then be stacked to form a stacked structure (a) or a folded structure (b) can be formed by folding. In both cases, the resulting molded body has more than one of the functionalized layers.

Claims

1. Magnetisable ink for functionalising surfaces, comprising at least one magnetisable material, at least one solvent and at least one binder, and the magnetisable material comprising magnetisable microparticles and / or nanoparticles, characterised in that the microparticles and / or nanoparticles are contained in the magnetizable ink in an amount of 40 to 50 % by weight, the microparticles and / or nanoparticles being flaky.

2. A magnetizable ink according to claim 1, characterized in that the microparticles have an average particle size of 1.5 to 15 µ m, preferably from 2.2 to 3 µ m µ m or from 3 to 7 µ m.

3. Magnetizable ink according to any of the preceding claims, characterized in that the magnetizable microparticles and / or nanoparticles comprise nickel, iron or magnetizable alloys.

4. A magnetizable ink according to any of the preceding claims, characterized in that it comprises at least one solvent ethyl acetate, propyl acetate, water and / or ethyl-3-ethoxypropionate, preferably ethyl acetate.

5. A magnetizable ink according to any of the preceding claims, characterized in that it comprises at least one binder nitrocellulose.

6. A magnetizable ink according to any of the preceding claims, characterized in that the binder is in an amount of 3.5 to 12 % by weight, preferably from 10 to 12 wt .-%, in which magnetizable ink is contained.

7. Plastic moulded body, comprising at least one surface, characterised in that at least one surface is functionalised with a magnetisable ink according to any of claims 1 to 6.

8. A plastic moulded body according to claim 7, characterised in that the plastic moulded body comprises a thermoplastic plastic or an elastomer, in particular a thermoplastic elastomer.

9. Plastic molded body according to claim 8, characterized in that -the thermoplastic is selected from the group consisting of polyethylene, ultra-high molecular weight polyethylene (UPE), polypropylene, polyamide, polyester, aromatic polyesters, polyvinyl chloride, polyethersulfone, polyetheretherketone (PEEK), ethylene tetrafluoroethylene (ETFE), chlorinated polyester Fluoropolymers (PCTFE, ECTFE), tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer (THV), polyvinylidene fluoride (PVF), polyvinylidene difluoride (PVDF), perfluoroalkoxy polymer (MFA + PFA), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), polytetrafluoroethylene (PTFE), and mixtures and copolymers thereof or that - at least one elastomer is selected from the group consisting of acrylate rubbers (AEM), ethylene-vinyl acetate rubbers (EVA), polybutadiene (BR), chlorosulfonated polyethylene (CSM), chlorinated polyethylene (CM), epichlorohydrin rubbers (ECO), chloroprene rubbers (CR), polyisoprene (IR), fluororubber (FPM, FKM, FFKM), styrene-butadiene rubbers (SBR), isobutylene-isoprene rubbers (IIR), halogenated isobutylene-isoprene rubbers (CIIR + BIIR), acrylonitrile butadiene rubbers (NBR), partially hydrogenated or fully hydrogenated acrylonitrile butadiene rubbers (HNBR), offcuts of NBR with PVC (NBR-PVC), teihydrogenated or fully hydrogenated carboxylated acrylonitrile butadiene rubbers, Ethylene-propylene-diene rubbers (EPDM), ethylene-propylene rubbers (EPM), natural rubber (NR), brominated isobutylene-paramethylstyrene rubbers, silicone rubbers (MVQ), as well as mixtures, blends and copolymers thereof and / or that: - that at least one thermoplastic elastomer is selected from the group consisting of thermoplastic copolyamide (TPA-A), thermoplastic Polyester elastomers (TPE-E), thermoplastic olefin-based elastomers (TPE-O), styrene block copolymers (TPE-S), thermoplastic urethane-based elastomers (TPE-U, TPU), thermoplastic vulcanizates or cross-linked olefin-based thermoplastic elastomers (TPE-V).

10. Plastic moulded body according to any of claims 7 to 9, characterised in that the plastic moulded body comprises a plastic film wherein at least one surface of the plastic film is functionalised with the magnetisable ink.

11. Plastic moulded bodies according to any of claims 7 to 10, characterised in that by folding or rolling up the plastic moulded bodies, wherein at least one surface of the plastic moulded bodies is functionalised, or by stacking several plastic moulded bodies, wherein at least one surface of the respective plastic molded bodies are functionalized, a plastic molded body comprising several layers of magnetizable ink is created.

12. A method for the manufacture of a plastic moulded body according to any of claims 7 to 11, comprising the application of a layer, comprising or Consisting of the magnetizable ink according to any of claims 1 to 6, on at least one surface of the plastic molded body, characterized in that - a separate layer, comprising or consisting of the magnetizable ink, is first formed and this layer is deposited as a whole on at least one surface of the plastic molded body, or that - the layer, comprising or consisting of the magnetizable ink, is formed directly on at least one surface of the plastic molded body, and the layer, comprising or consisting of the magnetizable ink by thermal treatment or irradiation is bonded to the plastic molded body.

13. Plastic moulded bodies obtained by the method of claim 12.

14. Use of a magnetizable ink according to any of claims 1 bis 6 for the functionalization of surfaces in an industrial application, in automobiles or automotive components, in particular of drive belts, of upper material, of a hose for gaseous or liquid media or of a suspension / damping element and / or interior components, in particular for localization of structural defects, position detection, increment signaling and / or positioning.

15. Use of a plastic moulded body according to any of claims 7 bis 11 or claim 13 as a component in an industrial application or automobile, in particular as a drive belt, as an upper material, as a hose for gaseous or liquid media or as a suspension / damping element and / or as an interior component.