Animal ear tag and method for producing such an animal ear tag and use of an antimicrobial additive for producing an animal ear tag and use of an animal ear tag comprising an antimicrobial additive

Abstract

An animal ear tag (1) which serves for marking farm animals, in particular for cattle, pigs, goats and sheep. The animal ear tag (1) comprises a plastic material, an antimicrobial additive being introduced into the plastic material.

Description

[0001] Animal ear tag and method for producing such an animal ear tag and use of an antimicrobial additive for producing an animal ear tag and use of an animal ear tag with an antimicrobial additive

[0002] The invention relates to an animal ear tag for marking farm animals such as cattle, pigs, goats, and sheep, and to a corresponding method for producing such an animal ear tag. Furthermore, the invention relates to the use of an antimicrobial additive comprising a silver component for producing an animal ear tag and to the use of an animal ear tag comprising an antimicrobial additive, wherein the antimicrobial additive contains a silver component.

[0003] Animal ear tags play a crucial role in modern agriculture, performing a variety of functions essential for the efficient and safe management of livestock. These tags, which are equipped with individual numbers and / or codes, enable the unique identification of each livestock animal, which is essential for health monitoring, conducting breeding programs, and herd management. The ability to uniquely identify each livestock animal is also essential for complete traceability in the event of disease outbreaks, which supports disease control and the protection of public health. Furthermore, animal ear tags help farms comply with legal requirements for livestock identification, which often aim to improve food safety and traceability.The precise documentation and record-keeping enabled by the use of animal ear tags is also important for certifying meat quality and other specific traits. Ultimately, these tags contribute to more efficient farm management by providing valuable data for evaluating herd performance, leading to increased productivity and improved management practices.

[0004] The application of ear tags is an important part of modern livestock farming, but it also carries specific risks, particularly with regard to the risk of infection. The perforation of the ears required for the application of ear tags can provide an entry point for bacteria and other pathogenic microorganisms. This risk is exacerbated by the fact that livestock live in environments where they can easily come into contact with pathogens. If ear tags are not applied under sterile conditions or if post-wound care is neglected, the risk of infections increases. This can not only compromise the health and welfare of the affected livestock but also lead to the spread of disease within the herd.Furthermore, the treatment of such infections can entail additional costs and labor for operators and, in some cases, can even lead to permanent health damage or the loss of the farm animal.

[0005] It is therefore the object of the present invention to create an animal ear tag which reduces the risk of infection when attaching the animal ear tag to the farm animal.

[0006] This object is achieved by the animal ear tag according to claim 1 and by the method for producing the animal ear tag according to claim 21. Advantageous developments of the animal ear tag according to the invention are specified in claims 2 to 20. Claim 22 describes a use of an antimicrobial additive comprising a silver component for producing an animal ear tag. Claim 23 describes a use of an animal ear tag comprising an antimicrobial additive, wherein the antimicrobial additive contains a silver component.

[0007] The animal ear tag according to the invention is used for marking livestock, especially cattle, pigs, goats, and sheep. The animal ear tag comprises a plastic material with an antimicrobial additive incorporated into the plastic.

[0008] It is particularly advantageous to incorporate an antimicrobial additive into the plastic because it inhibits or prevents the growth and spread of microorganisms such as bacteria, fungi, and algae. Such an animal ear tag allows for the continuous presence of antimicrobial agents that protect the immediate area around the wound. This minimizes the risk of pathogenic microorganisms penetrating the wound and causing infection. The long-term effect of these additives ensures that protection is maintained over a longer period of time, improving the chances of healing and promoting the overall well-being of the farm animal.By combating the risk of infection directly at the source, antimicrobial additives, especially those using silbenones, help protect the health of farm animals, reduce the use of (further) antibiotics, and ultimately contribute to safer and more efficient agricultural practices. It is particularly advantageous that the antimicrobial additive is not only applied to the surface of the animal ear tag, for example, by spraying it, but is also incorporated into the plastic, thus exerting its effect over a longer period of time—even if the surface of the plastic is worn away.

[0009] The animal ear tag according to the invention comprises the plastic. In principle, the animal ear tag can comprise exactly one plastic or several, in particular different, plastics. The antimicrobial additive can be incorporated into all, some, or only one of the plastics. In an advantageous development, the animal ear tag comprises a first and a second tag part, which are designed to be attached to one another and to an ear of the farm animal. The first tag part and / or the second tag part comprises the plastic into which the antimicrobial additive is incorporated.

[0010] In an advantageous further development, the first part of the brand is constructed in one piece. In addition or alternatively, the second part of the brand is constructed in one piece.

[0011] In an advantageous further development, the first brand part is constructed in multiple parts, with one, several, or all parts of the multi-part first brand part comprising the plastic into which the antimicrobial additive is incorporated. Additionally or alternatively, the second brand part is constructed in multiple parts, with one, several, or all parts of the multi-part second brand part comprising the plastic into which the antimicrobial additive is incorporated.

[0012] In an advantageous further development, the first brand part is formed by a single plastic injection molding process step. Additionally or alternatively, the second brand part is formed by a single plastic injection molding process step.

[0013] In an advantageous development, the first tag part comprises an identification body and a pin, wherein the pin is arranged, i.e., fastened, to the identification body with its first end, and wherein the pin comprises a tip and / or cutting edge at its second end. The second tag part comprises an identification body and a receiving element that is arranged, i.e., fastened, to the identification body. The pin, i.e., the tip and / or cutting edge, of the first tag part is designed to be pushed through an ear of the farm animal and into the receiving element of the second tag part, forming a clamping and / or locking and / or positive-locking connection. In this way, the animal ear tag can be very easily attached to the ear of the farm animal by joining the first and second tag parts together.

[0014] In an advantageous further development, the pin of the first brand part cannot be pushed through the corresponding counterpart in the form of the receiving element of the second brand part. In this case, the pin remains enclosed in an open or closed "cage" and / or hollow cylinder, in particular without any protrusion.

[0015] In an advantageous further development, the receiving element of the second brand part is hollow-cylindrical.

[0016] In an advantageous further development, the pin of the first brand part ends in the receiving element of the second brand part when the first brand part and the second brand part are connected to one another.

[0017] In an advantageous further development, the connection of the first brand part to the second brand part takes place without deformation of the pin of the first brand part.

[0018] In an advantageous further development, the connection of the pin of the first brand part with the receiving element of the second brand part cannot be removed without destruction.

[0019] In an advantageous further development, the connection of the pin of the first brand part with the receiving element of the second brand part cannot be removed without destruction.

[0020] In an advantageous further development, the pin of the first brand part comprises at least one or at least two barbs which engage in a corresponding counterpart in the receiving element of the second brand part and prevent the first brand part from being pulled off the second brand part.

[0021] In an advantageous further development, the pin and / or the receiving element is deformed after the connection has been made.

[0022] In an advantageous further development, the pin is arranged at an end region of the identification body of the first part of the mark, wherein the identification body widens starting from this first end region.

[0023] In an advantageous further development, the receiving element is arranged at an end region of the license plate body of the second part of the mark, wherein the license plate body widens starting from this end region.

[0024] In an advantageous further development, the shape of the first part of the trademark corresponds to the shape of the second part of the trademark.

[0025] In an advantageous development, the surface area of ​​the first brand part is smaller than the surface area of ​​the second brand part. Alternatively, the surface area of ​​the first brand part is larger than the surface area of ​​the second brand part. Alternatively, both surfaces are approximately the same size.

[0026] In an advantageous development, the body of the first part of the trademark is printed. Alternatively, the body of the second part of the trademark is printed. Laser printing is preferably used.

[0027] In an advantageous development, an RFID tag is integrated into the first brand part and / or the second brand part. In an advantageous development, the tag body and / or the pin of the first brand part comprise the plastic into which the antimicrobial additive is incorporated. Additionally or alternatively, the tag body and / or the receiving element of the second brand part comprise the plastic into which the antimicrobial additive is incorporated. If the pin and / or the receiving element comprise the plastic into which the antimicrobial additive is incorporated, the antimicrobial agents can become active directly in the immediate vicinity of the wound.The use of the antimicrobial additive in the tag body also reduces the risk of microorganisms penetrating the wound and ensures that the animal ear tag is more resistant to external influences, such as those microorganisms, and can remain in place longer. The structural integrity of the animal ear tag is maintained for a longer period.

[0028] In an advantageous further development, the first part of the tag is made up of more than 95% plastic, into which the antimicrobial additive is incorporated. Additionally or alternatively, the second part of the tag is made up of more than 95% plastic, into which the antimicrobial additive is incorporated. This allows the animal ear tag to be produced cost-effectively and handled easily. In general, plastic is a material that offers high durability and resistance to various environmental conditions. It is resistant to water, extreme temperatures, and UV radiation, meaning that plastic ear tags retain their shape and legibility under a wide range of climatic conditions. Furthermore, the flexibility of the plastic means that the ear tags are not easily damaged, even under physical stress, such as that which occurs during the movement of livestock or when rubbing against fences and vegetation.Another advantage is their design versatility. Plastic ear tags can be produced in various colors and sizes, facilitating additional visual identification of livestock and supporting herd organization according to various criteria such as age, sex, or breeding status. The surface of plastic also allows for clear and permanent labeling with individual identification numbers, barcodes, or even QR codes, which are compatible with modern livestock management and traceability technologies.

[0029] In an advantageous development, the identification body of the first brand part has a maximum height hi which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or which is greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum height hi is preferably 5.9 cm. The identification body of the first brand part has a maximum width bi which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or which is greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum width bi is preferably 5.6 cm. The pin of the first brand part has a length h which is greater than 1.2 cm, 1.5 cm, 2 cm or which is greater than 2.5 cm and which is preferably less than 2.3 cm. The length h is preferably 2.29 cm.

[0030] In an advantageous development, the identification body of the second brand part has a maximum height h2 which is preferably greater than 6 cm, 6.5 cm, 7 cm, 7.5 cm or which is greater than 8 cm and which is preferably less than 8.5 cm or less than 8 cm. The maximum height h2 is preferably 7.8 cm. The identification body of the second brand part has a maximum width b2 which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or which is greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum width b2 is preferably 5.6 cm. The receiving element of the second brand part has a length l2 which is greater than 0.5 cm, 0.8 cm, 1 cm or which is greater than 1.5 cm and which is preferably less than 2 cm or less than 1.5 cm. The length l2 is preferably 1.12 cm.

[0031] In an advantageous development, the identification body of the first and / or second brand part has a round cross-sectional shape or is approximately round in cross-section. Preferably, the diameter is more than 20 mm, 25 mm or more than 30 mm and preferably the diameter is less than 35 mm, 30 mm or less than 25 mm. Preferably, the diameter is 28 mm. The pin of the first brand part is preferably longer than 15 mm, 20 mm or longer than 25 mm. Preferably, it is shorter than 28 mm, 25 mm or shorter than 21 mm. Preferably, the pin is 21 mm or 25 mm long. Preferably, the identification body of the first and second brand parts together weigh more than 3 g and less than 4 g. Preferably, they weigh 3.4 g.

[0032] In an advantageous development, the identification body of the first and / or second brand part has a maximum height and / or a maximum width of more than 20 mm, 25 mm or more than 30 mm and preferably the maximum height and / or the maximum width is less than 35 mm, 30 mm or less than 25 mm. Preferably, the maximum height and / or the maximum width is 28 mm. The pin of the first brand part is preferably longer than 15 mm, 20 mm or longer than 25 mm. Preferably, it is shorter than 28 mm, 25 mm or shorter than 21 mm. Preferably, the pin is 21 mm long. Preferably, the identification body of the first and second brand parts together weigh more than 3 g and less than 4 g. Preferably, they weigh 3.5 g.

[0033] In an advantageous development, the identification body of the first and / or second brand part has a maximum height of more than 80 mm, 90 mm, 100 mm, 110 mm or more than 120 mm and preferably the maximum height is less than 125 mm, 115 mm, 105 mm or less than 95 mm. The maximum height is preferably 102 mm. Additionally or alternatively, the identification body of the first and / or second brand part has a maximum width of more than 50 mm, 60 mm, 70 mm, 80 mm or more than 90 mm and preferably the maximum width is less than 95 mm, 85 mm, 75 mm or less than 65 mm. The maximum width is preferably 76 mm. The pin of the first brand part is preferably longer than 15 mm, 20 mm or longer than 25 mm. Preferably, it is shorter than 28 mm, 25 mm or shorter than 21 mm. The pin is preferably 21 mm long. The body of the first and second mark parts together preferably weigh more than 15 g and less than 25 g. They preferably weigh 19.9 g.

[0034] In an advantageous development, the license plate body of the first brand part has a maximum height hi which is preferably greater than 4.5 cm, 5 cm, 5.5 cm, 6 cm, 7 cm, 8 cm or 9 cm and which is preferably less than 9.5 cm. The maximum height hi is preferably 8 cm, or 6 cm or 4.8 cm with an optional deviation of +- 2 mm. The license plate body of the first brand part has a maximum width bi which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum width bi is preferably 5.7 cm or 4.2 cm with an optional deviation of +- 2 mm. The pin of the first mark part has a length h that is greater than 1.2 cm, 1.5 cm, 2 cm, or greater than 2.5 cm, and preferably less than 2.3 cm. Preferably, the length h is 2.29 cm.

[0035] In an advantageous development, the license plate body of the second brand part has a maximum height h2 which is preferably greater than 4.5 cm, 5 cm, 5.5 cm, 6 cm, 7 cm, 8 cm or 9 cm and which is preferably less than 9.5 cm. The maximum height h2 is preferably 8 cm, or 6 cm or 4.8 cm with an optional deviation of +- 2 mm. The license plate body of the second brand part has a maximum width b2 which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum width b2 is preferably 5.7 cm or 4.2 cm with an optional deviation of +- 2 mm. In an advantageous development, the license plate bodies of the first and / or second brand part have a wall thickness of 1 mm to 1.4 mm. This applies to the printed areas that are free of the pin or the receiving element.

[0036] In an advantageous further development, the dimensions of the mark bodies of the first and second parts of the mark are identical or differ from each other by less than 5%.

[0037] In an advantageous further development, the antimicrobial additive is evenly distributed throughout the plastic. This means that the amount of antimicrobial additive inside the plastic neither decreases nor increases compared to the amount of antimicrobial additive on the surface of the plastic.

[0038] In an advantageous further development, the antimicrobial additive is not only applied to a surface of the plastic, but also in the interior of the plastic, in particular the entire interior.

[0039] In an advantageous further development, the antimicrobial additive is also incorporated in, in particular the entire interior of, the sign body of the first trademark part and / or in, in particular the entire interior of the pin of the first trademark part.

[0040] In an advantageous further development, the antimicrobial additive is also introduced into, in particular the entire interior of, the sign body of the second trademark part and / or into, in particular the entire interior of the receiving element of the second trademark part.

[0041] In an advantageous further development, the concentration of the antimicrobial

[0042] Additive 2% or less than 2% of the total weight of the plastic. This means, for example, that 2 g or less than 2 g of the antimicrobial additive is added to 100 g of plastic.

[0043] In an advantageous further development, the concentration of the antimicrobial additive is in the range of 0.2% to 0.6% of the total weight of the plastic. This means, for example, that between 0.2 g and 0.6 g of the antimicrobial additive are added to 100 g of plastic.

[0044] In an advantageous further development, the antimicrobial additive comprises a silver component. The antimicrobial additive is therefore preferably silver-based, and the antimicrobial effect is preferably achieved by silver-based compounds (Ag + ). The antimicrobial additive therefore preferably acts due to the silver ionones. The silver component can be, for example, elemental silver or organic or inorganic silver salts (e.g., silver oxide, silver phosphate, silver chloride, silver sulfate, silver calcium sodium phosphate, silver zirconium compounds) or mixtures thereof. Preferably, the silver component comprises and more preferably consists of one or more inorganic silver salts. In a preferred embodiment, the silver component comprises and preferably consists of silver oxide.

[0045] The presence of silbenones in the additive effectively suppresses a wide range of bacteria, viruses, and fungi, significantly reducing the risk of infection at the puncture site after ear tagging. Another advantage of silver ions as an antimicrobial agent is their long-lasting effect. Silver ions are present continuously and over a long period of time, providing lasting protection against the colonization and proliferation of pathogens. This sustained effect is particularly valuable in the livestock industry, where a long-term solution to minimize infection risks is required. Furthermore, silver ions are effective against a broad spectrum of microorganisms without promoting the development of resistance to the extent that can be the case with conventional antibiotics. This property makes silbenones a sustainable option in the fight against infections, especially in times of increasing antibiotic resistance.Silver-based additives are also capable of enhancing the effectiveness of other antimicrobial and hygiene measures by forming an additional protective layer that prevents the transmission of infections. This combination of effectiveness, long-lasting effect, and broad-spectrum activity makes the use of antimicrobial additives containing a silver component a valuable strategy for reducing infection risks in animal husbandry. At the same time, sufficiently high temperature resistance is ensured, allowing the antimicrobial additive to be added to the plastic in a plastic injection molding process.

[0046] In an advantageous development, the antimicrobial additive contains a silver component in a glass-ceramic carrier. A key advantage of this technology is the controlled presence of silbenones, which is made possible by the glass-ceramic carrier. Glass-ceramic is a material characterized by its porous structure, which encloses the embedded silver component and evenly regulates the presence of silbenones over a long period of time. This ensures a sustained antimicrobial effect without the need for a high initial concentration, minimizing the risk of skin irritation or toxic effects. Another advantage of this technology is the high stability of the system. Glass-ceramic carriers protect the silver component from premature reaction or degradation, increasing its effectiveness and longevity.This means that the antimicrobial efficacy is maintained throughout the entire service life of the product, such as an animal ear tag. Furthermore, the use of glass-ceramic allows precise control over the size and distribution of the pores, further optimizing the exposure of the silver compounds. This contributes to achieving optimal antimicrobial activity specifically tailored to the infection risk without harming the environment or the livestock. In an advantageous further development, the antimicrobial additive is based on wet-milled inorganic carrier particles containing a silver component. The inorganic carrier particles have a smooth surface and are produced by wet milling. Wet milling is a process in which solid materials are crushed in a liquid to produce particles of an extremely fine size.This process leads to several positive effects on the properties of the glass-ceramic substrate. First, wet grinding allows for precise control over the particle size and distribution of the glass-ceramic material. This is crucial because a uniform and fine particle size increases the surface area, leading to more efficient exposure of the embedded silbenones. An increased surface area facilitates a more uniform interaction between the silbenones and the microorganisms, thereby enhancing the antimicrobial efficacy of the additive. Furthermore, wet grinding improves the homogeneity of the material. The fine and uniform distribution of the particles within the glass-ceramic matrix ensures that the silbenones are evenly distributed.This results in consistent antimicrobial activity throughout the entire material, which is beneficial for applications requiring reliable and long-lasting antimicrobial action. The fine particles created by wet grinding also promote better bonding and integration of the glass-ceramic into the final product. This allows for a more homogeneous distribution of the antimicrobial additive throughout the plastic. This also improves the mechanical stability and longevity of the antimicrobial additive, which is particularly important in areas such as animal husbandry, where materials are exposed to harsh conditions.

[0047] In an advantageous further development, the inorganic carrier particles comprise glass particles with an average particle size of 0.01 pm to 100 pm and a silver component content of 0.01 to 5 wt.% or up to 10 wt.%. The use of different sizes for the carrier particles allows smaller particles (near the lower end of the spectrum) to have a higher surface area in relation to their volume, which improves the exposure of silbenones and thus the antimicrobial activity. These fine particles can act quickly and effectively against microorganisms. Larger particles (in the upper end of the spectrum) offer a longer presence of the silbenones, resulting in a sustained antimicrobial effect over a longer period of time. This combination of rapid and long-lasting action is ideal for covering a wide range of applications. The specified range of the silver component content of 0.01 to 5 wt.% or up to 10 wt.-% offers flexibility in dosage, allowing for effective control of the balance between antimicrobial efficacy and material costs. A lower silver component content may be sufficient for applications requiring moderate antimicrobial activity, while a higher silver component content may be beneficial for more demanding applications requiring strong antimicrobial activity. This flexibility in concentration allows for cost-effective adaptation to specific requirements without compromising safety or efficacy. Thus, the silver component content can be varied for animal ear tags used for different livestock.Furthermore, the careful selection of particle size and content of silver component minimizes potential risks to humans and the environment by ensuring that the presence of silver ionones is limited to a necessary level to achieve an effective antimicrobial effect, without overdose or unnecessary exposure.

[0048] In an advantageous embodiment, the inorganic carrier particles are boron-containing and / or phosphate-containing glass particles containing a silver salt as the silver component. In a further advantageous embodiment, the inorganic carrier particles are boron-containing and / or phosphate-containing glass particles containing silver oxide as the silver component. The specific material combination of boron-containing and / or phosphate-containing glass particles as inorganic carrier particles and silver salt or silver oxide as the silver component improves the efficacy and stability of the antimicrobial agents. The inclusion of boron-containing or phosphate-containing glass particles in carrier particles provides an excellent basis for the controlled exposure of silbenones. The bioactive nature of these glass particles can enhance the interaction with microorganisms and thus increase the antimicrobial efficiency of the silbenones.The combination with silver oxide or silver salts as an antimicrobial component utilizes the powerful disinfectant properties of silver. Silver oxide and silver salts are effective in killing or inhibiting a wide range of microorganisms, including bacteria, fungi, and some viruses. Furthermore, the possible processing temperature increases when using boron-containing and / or phosphate-containing glass particles.

[0049] In an advantageous further development, the antimicrobial additive is in powder form.

[0050] In an advantageous development, the antimicrobial additive is a crystalline powder. A crystalline powder is characterized by its uniform particle size and shape, which allows for even distribution and embedding in the plastic. This homogeneity ensures that the antimicrobial effect is consistent throughout the entire material. A further advantage lies in the specific surface structure and porosity that crystalline powders can exhibit. These properties improve the antimicrobial efficacy of the antimicrobial additive by providing a larger surface area for interaction with microorganisms. This ensures rapid and effective antimicrobial activity, helping to inhibit the growth and spread of bacteria, fungi, and other harmful microorganisms.The crystalline structure also allows for precise dosing and easy adjustment of the antimicrobial additive's concentration to meet the specific requirements of different applications. This is crucial for developing customized solutions that are both effective and cost-effective. Finally, the powder form offers advantages in terms of compatibility with different production processes. In powder form, the antimicrobial additive can be easily added to the plastic.

[0051] In an advantageous further development, 98% of the particles of the antimicrobial additive are smaller than 5 μm and 50% of the particles of the antimicrobial additive are smaller than 2 μm. The small particle size allows for a significantly larger surface area relative to the volume of the particles. This increased surface area improves the interaction between the antimicrobial additive and the microorganisms, resulting in a more efficient and faster antimicrobial effect. Small particles can react more quickly and to a greater extent with bacteria, viruses, or fungi, increasing the likelihood that the microorganisms will be effectively killed or their growth inhibited. Furthermore, the fineness of the particles improves their dispersibility in different media or carrier materials. The fine particles can be distributed more evenly throughout the plastic, resulting in a consistent antimicrobial protective layer throughout the entire volume.The small particle size also facilitates the processing of the antimicrobial additive. Fine powders tend to mix better with other materials and can be more easily integrated into production processes, such as plastic injection molding, without negatively affecting the physical properties of the final product.

[0052] In an advantageous development, the refractive index of the antimicrobial additive is 1.507 with a deviation of ±10%. The refractive index is approximately the same as that of thermoplastic polyurethane, which is approximately 1.51 to 1.54. The refractive index of the additive is therefore close to the refractive index of the plastic, thereby minimizing the scattering or distortion of light that can occur when materials with different optical densities are combined. This would be advantageous, for example, for transparent animal ear tags. In an advantageous development, the plastic is a thermoplastic polyurethane (TPU). Thermoplastic polyurethane has exceptional durability and abrasion resistance, making it ideal for products subject to heavy use, such as animal ear tags.In addition, thermoplastic polyurethane is waterproof and resistant to microorganisms, making it suitable for outdoor applications, especially for livestock. Another significant advantage is its environmental friendliness. It is generally recyclable and can be processed without the use of plasticizers.

[0053] In an advantageous further development, the plastic is a thermoplastic polyurethane with a biological component.

[0054] In an advantageous further development, the plastic is a thermoplastic polyurethane with a biological component, wherein the biological component in the thermoplastic polyurethane is more than 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or more than 90% but less than 100%.

[0055] In an advantageous further development, the plastic is a thermoplastic polyurethane with a bio-based content of 32% with a deviation of 3%. Alternatively, the bio-based content is 40% with a deviation of 5%. Such a bio-based content in thermoplastic polyurethane underscores the commitment to environmentally friendly production processes and products by utilizing renewable resources instead of relying exclusively on fossil fuels. This contributes to the reduction of carbon emissions associated with the production of plastics and promotes sustainability in material production. It is also conceivable that the bio-based content is above 40%, 50%, 60%, 70%, or over 80%. In an advantageous further development, the animal ear tag is made up of more than 95% plastic.

[0056] In an advantageous further development, the antimicrobial additive is odorless.

[0057] In an advantageous development, the plastic contains iodine in addition to the antimicrobial additive. This provides a wound-healing and disinfecting effect.

[0058] In an advantageous further development, the bulk density of the antimicrobial additive is 1050 kg / m 3 up to 1100 kg / m 3 .

[0059] In an advantageous further development, the hardness of the thermoplastic polyurethane is: A1 : 95 (Shore A / D), according to ISO 868.

[0060] In an advantageous further development, the specific density of the thermoplastic polyurethane is: 1.17 g / cm 3 , according to ISO 2781.

[0061] In an advantageous further development, the tensile strength of the thermoplastic polyurethane is: 36 MPa, according to ISO 527-2 / 5A / 200.

[0062] In an advantageous further development, the ultimate elongation of the thermoplastic polyurethane is 415%, according to ISO 527-2 / 5A / 200.

[0063] In an advantageous further development, the abrasion resistance of the thermoplastic polyurethane is: 28 mm 3 , according to ISO 4649-A. The animal ear tag according to the invention can be produced particularly well if ESTANE® ECO 12T95 from The Lubrizol Corporation is used as the plastic and Sanitized® BC A 21-41 from Sanitized AG is used as the antimicrobial additive. Both materials are fed together into a plastic injection molding machine. EP 2 016 825 A1 describes the production of an antimicrobial additive with a silver component. The content of this patent application, in particular the production of the antimicrobial additive and its composition, is incorporated into this application by reference.

[0064] The inventive method for producing the animal ear tag comprises several process steps. In a first process step, granules made of thermoplastic polyurethane with a biological content of 32% (with a deviation of ±3%) and an antimicrobial additive in the form of a crystalline powder are fed into a mixer. The antimicrobial additive amounts to 0.2% to 2% of the total weight of the thermoplastic polyurethane. The antimicrobial additive is metered, in particular, using a gravimetric dosing hopper, side extruder, or tumbler. In a second process step, the thermoplastic polyurethane granules and the antimicrobial additive are mixed together. In a third process step, the mixture is fed to a plastic injection molding machine. In a fourth process step, the animal ear tag is manufactured by the plastic injection molding machine.In the event that the animal ear tag comprises a first and a second tag part, both tag parts can be manufactured simultaneously using a common injection mold or in different injection molds.

[0065] The inventive use of an antimicrobial additive comprising a silver component serves for the production of an animal ear tag. The inventive use of an animal ear tag comprising an antimicrobial additive, wherein the antimicrobial additive contains a silver component, serves for the marking of farm animals, in particular cattle, pigs, goats, and sheep.

[0066] The invention is described below purely by way of example with reference to the drawings. They show:

[0067] Figures 1A, 1B: different views of a first mark part of the animal ear tag with a mark body and a pin;

[0068] Figures 2A, 2B, 2C: different views of a second mark part of the animal ear tag with a mark body and a receiving element;

[0069] Figures 3A, 3B: different views showing a joining of the first and second tag parts to each other and to an ear of a farm animal; and

[0070] Figure 4: a flow chart showing a process for manufacturing the animal ear tag.

[0071] The structure of the animal ear tag 1 is explained in more detail in the following figures. The animal ear tag 1 is used to mark farm animals. The animal ear tag 1 comprises a first tag part 2 and a second tag part 3. The first tag part 2 and the second tag part 3 can be attached to one another and to an ear 4 (see Figures 3A, 3B) of a farm animal. Figures 1A and 1B show the first tag part 2 of the animal ear tag 1. The first tag part 2 comprises a tag body 5 and a pin 6, which is arranged with its first end 6a on the tag body 5 and which has a tip 7 and / or cutting edge at its second end 6b. The pin 6 is arranged at an end region of the tag body 5, wherein the tag body 5 widens starting from this first end region. Figure 1B shows the back of the tag body 5 from Figure 1A.

[0072] The identification body 5 of the first trademark part 2 has a maximum height hi, which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum height hi is preferably 5.9 cm. The identification body 5 of the first trademark part 2 has a maximum width bi, which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or greater than 6 cm and which is preferably less than 6.5 cm or less than 6 cm. The maximum width bi is preferably 5.6 cm.

[0073] The pin 6 of the first marking part 2 has a length h that is greater than 1.2 cm, 1.5 cm, 2 cm, or greater than 2.5 cm, and preferably less than 2.3 cm. The length h is preferably 2.29 cm.

[0074] The marking body 5 and / or the pin 6 of the first marking part 2 comprise a plastic material into which an antimicrobial additive is incorporated. Preferably, the plastic material of the marking body 5 and the pin 6 is the same. However, different plastic materials can also be provided. In principle, it is also conceivable for the tip 7 to be made of or comprise a different material, for example, a metal, compared to the rest of the pin 6 or the marking body 5. The marking body 5 of the first marking part 2 has a thickness of approximately 1 mm.

[0075] Figures 2A, 2B, and 2C show the second tag part 3 of the animal ear tag 1. The second tag part 3 comprises a tag body 8 and a receiving element 9 arranged on the tag body 8. The receiving element 9 is designed to receive the pin 6 of the first tag part 2.

[0076] The identification body 8 of the second trademark part 3 has a maximum height h2, which is preferably greater than 6 cm, 6.5 cm, 7 cm, 7.5 cm or greater than 8 cm and preferably less than 8.5 cm or less than 8 cm. The maximum height h2 is preferably 7.8 cm. The identification body 8 of the second trademark part 3 has a maximum width b2, which is preferably greater than 4.5 cm, 5 cm, 5.5 cm or greater than 6 cm and preferably less than 6.5 cm or less than 6 cm. The maximum width b2 is preferably 5.6 cm.

[0077] The receiving element 9 of the second marking part 3 has a length l2 that is greater than 0.5 cm, 0.8 cm, 1 cm, or greater than 1.5 cm, and preferably less than 2 cm or less than 1.5 cm. The length l2 is preferably l1.12 cm.

[0078] The identification body 8 and / or the receiving element 9 of the second identification part 3 comprise a plastic material into which an antimicrobial additive is incorporated. Preferably, the plastic material of the identification body 8 and the receiving element 9 is the same. However, different plastic materials can also be used. The identification body 8 of the second identification part 3 has a thickness of approximately 1 mm.

[0079] Figure 2C shows a reverse side of Figures 2A and 2B.

[0080] Figures 3A and 3B show various views illustrating the connection of the first and second tag parts 2, 3 to each other and to the ear 4 of the farm animal. Both tag parts 2, 3 are preferably pressed together with pliers, with the ear 4 of the farm animal being arranged between the two tag parts 2, 3. Both tag parts 2, 3 move toward each other, as shown by the arrows in Figure 3A.

[0081] The pin 6 of the first brand part 2 comprises at least one or at least two barbs 10, which engage in a corresponding counterpart in the receiving element 9 of the second brand part 3 and prevent the first brand part 2 from being pulled off the second brand part 3.

[0082] The pin 6 of the first mark part 2 can be partially hollow.

[0083] At least a part of the pin 6 and the identification body 5 of the first trademark part 2 are formed in one piece and preferably comprise the same plastic.

[0084] The plastic and the antibacterial additive can be constructed according to the explanations in the introduction to the description.

[0085] Figure 4 shows a flow diagram explaining a method for producing the animal ear tag 1. In a first process step S1, a granulate of thermoplastic polyurethane with a biological content of 32% with a deviation of ±3% and an antimicrobial additive in the form of a crystalline powder is fed into a mixer. The antimicrobial additive amounts to 0.2% to 2% of the total weight of the thermoplastic polyurethane, wherein the antimicrobial additive is dosed in particular by means of a gravimetric dosing hopper, side extruder, or tumbler. In a second process step S2, the granulate of thermoplastic polyurethane and the antimicrobial additive are mixed together. In a third process step S3, the mixture is fed to a plastic injection molding machine. In a fourth process step S4, the animal ear tag 1 is manufactured by the plastic injection molding machine.In the event that the animal ear tag 1 comprises a first and a second tag part 2, 3, both tag parts 2, 3 can be produced simultaneously using a common injection mold or in different injection molds.

[0086] The invention is not limited to the described embodiments. Within the scope of the invention, all described and / or illustrated features can be combined with one another in any way.

[0087] List of reference symbols

[0088] Animal ear tag 1

[0089] First part of the brand 2

[0090] Second part of the mark 3

[0091] Ear (of a farm animal) 4

[0092] Mark body (of the first part of the mark) 5

[0093] Pen (of the first part of the stamp) 6

[0094] First end (of the pin) 6a

[0095] Second end (of the pin) 6b

[0096] Tip (of the pen) 7

[0097] Body of the mark (of the second part of the mark) 8

[0098] Receiving element (of the second part of the mark) 9

[0099] Barbs 10

[0100] Height of license plate body (first part of the mark) hi

[0101] Width of the license plate body (first part of the mark)

[0102] Length pin h

[0103] Height of the license plate body (second part of the mark) h2

[0104] Width of the license plate body (second part of the mark) b2

[0105] Length of receiving element I2

[0106] Process steps Si, S2, S3, S4

Claims

Claims 1 . Animal ear tag (1 ) for marking farm animals, in particular cattle, pigs, goats and sheep, having the following characteristics: - the animal ear tag (1 ) comprises a plastic; - an antimicrobial additive is incorporated into the plastic.

2. Animal ear tag (1) according to claim 1, characterized by the following features: - the animal ear tag (1) comprises a first tag part (2) and a second tag part (3) which are designed to be attached to each other and to an ear (4) of the farm animal; - the first brand part (2) comprises the plastic into which the antimicrobial additive is incorporated and / or the second brand part (3) comprises the plastic into which the antimicrobial additive is incorporated.

3. Animal ear tag (1) according to claim 2, characterized by the following features: - the first mark part (2) comprises a mark body (5) and a pin (6) which is arranged with its first end (6a) on the mark body (5) and which comprises a tip (7) and / or cutting edge at its second end (6b); - the second mark part (3) comprises a mark body (8) and a receiving element (9) arranged on the mark body (8); - the pin (6) of the first tag part (2) is designed to be pushed through an ear (4) of the farm animal and into the receiving element (9) of the second tag part (3).

4. Animal ear tag (1) according to claim 3, characterized by the following features: - the mark body (5) and / or the pin (6) of the first mark part (2) comprise the plastic into which the antimicrobial additive is incorporated; and / or - the mark body (8) and / or the receiving element (9) of the second mark part (3) comprise the plastic into which the antimicrobial additive is incorporated.

5. Animal ear tag (1) according to one of claims 2 to 4, characterized by the following features: - the first part of the brand (2) is made up of more than 95% of the plastic into which the antimicrobial additive is incorporated; and / or - the second part of the brand (3) is made up of more than 95% of the plastic into which the antimicrobial additive is incorporated.

6. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the antimicrobial additive is evenly distributed throughout the plastic.

7. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the concentration of the antimicrobial additive is 2% or less than 2% of the total weight of the plastic.

8. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the concentration of the antimicrobial additive is in the range of 0.2% to 0.6% of the total weight of the plastic.

9. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the antimicrobial additive includes a silver component.

10. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the antimicrobial additive comprises a silver component in a glass-ceramic carrier.

11. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the antimicrobial additive is formed on the basis of wet-milled inorganic carrier particles containing a silver component, wherein the inorganic carrier particles have a smooth surface and are produced by wet milling.

12. Animal ear tag (1) according to claim 11, characterized by the following feature: - the inorganic carrier particles comprise glass particles with an average particle size of 0.01 pm to 100 pm and a silver component content of 0.01 to 5 wt% or up to 10 wt%.

13. Animal ear tag (1) according to claim 12, characterized by the following feature: - the inorganic carrier particles are boron-containing and / or phosphate-containing glass particles which contain a silver salt as the silver component.

14. Animal ear tag (1) according to claim 12 or 13, characterized by the following feature: The inorganic carrier particles are boron-containing and / or phosphate-containing glass particles which contain silver oxide as the silver component.

15. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the antimicrobial additive is a crystalline powder.

16. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - 98% of the particles of the antimicrobial additive are smaller than 5 pm and 50% of the particles of the antimicrobial additive are smaller than 2 pm.

17. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the refractive index of the antimicrobial additive is 1.507 with a deviation of ±10%.

18. Animal ear tag (1) according to one of the preceding claims, characterized by the following feature: - the plastic is a thermoplastic polyurethane.

19. Animal ear tag (1) according to claim 18, characterized by the following feature: - a biological content in the thermoplastic polyurethane is more than 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80% or more than 90% but less than 100%.

20. Animal ear tag (1) according to claim 18 or 19, characterized by the following feature: - a biological content in the thermoplastic polyurethane is 32% with a deviation of ±3%; or - a biological content in the thermoplastic polyurethane is 40% with a deviation of ±5%; or.

21. A method for producing the animal ear tag (1) according to one of the preceding claims, characterized by the following method steps: - feeding a granulate of thermoplastic polyurethane with a biological content of 32% with a deviation of ±3% and an antimicrobial additive in the form of a crystalline powder into a mixer, wherein the antimicrobial additive amounts to 0.2% to 2% of the total weight of the thermoplastic polyurethane, wherein the antimicrobial additive is dosed in particular by means of a gravimetric dosing hopper, side extruder or tumbler; - Mixing the thermoplastic polyurethane granules and the antimicrobial additive; - Feeding the mixture into a plastic injection molding machine; - Making the animal ear tag (1 ).

22. Use of an antimicrobial additive comprising a silver component for producing an animal ear tag (1) for marking farm animals, in particular cattle, pigs, goats and sheep.

23. Use of an animal ear tag (1) comprising an antimicrobial additive, wherein the antimicrobial additive contains a silver component, for marking farm animals, in particular cattle, pigs, goats and sheep.

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