Method for coating card clothing elements and card clothing elements with a chromed surface

Abstract

A method for coating a card clothing element (1) and a card clothing element (1) are claimed. The card clothing element (1) has a main body (3) and one or more sawtooth wires (6), having successively arranged teeth (10), retained in the main body (3). The card clothing element (1) is dipped in an acid bath (23) to round off edges, brought about by a production process, of the teeth (10), and subsequently in a coating bath (24) having an anode (26) for electrolytically applying a chrome layer to the sawtooth wire (6). The card clothing element (1) is introduced into the coating bath (24) against the anode (26) such that at least the blade (9) of each sawtooth wire (6) is coated with a chrome coating.

Description

[0001] Process for coating fittings and fittings with a chrome-plated surface

[0002] The invention relates to a method for coating clothing elements and clothing elements with a chrome-plated surface. Clothing elements of various designs are used in various machines in a spinning preparation plant or in spinning machines. The clothing elements consist of a base body and one or more sawtooth wires attached to the base body. A sawtooth wire is essentially a wire running in a longitudinal direction and pressed into a shape, which on one side has teeth arranged one behind the other in the longitudinal direction. A part of the sawtooth wire containing the teeth is called the blade, and a part of the sawtooth wire located transversely to the longitudinal direction below the teeth is called the foot. The blade and foot are formed from a raw wire by pressing or rolling. The teeth are then formed in the blade by a punching process.

[0003] Among other things, sawtooth wires mounted on rollers are used in carding machines for fiber transport. Clothing elements equipped with sawtooth wires, arranged opposite these rollers, are used for carding and parallelizing the fibers. Clothing elements in the form of rollers, known as opening rollers, are also used for fiber separation in rotor spinning machines. The circular combs used in combing machines are also equipped with sawtooth wires, or clothing elements. In all these different applications, the clothing elements are used to process a wide variety of fiber types, including cotton fibers, synthetic fibers, or mixtures thereof. During fiber processing, for example, during transport, carding, separation, or combing, the sawtooth wires are subject to wear.

[0004] The state of the art attempts to make the teeth or their surfaces wear-resistant through appropriate material selection, hardening, or coating. For example, DE 43 14 161 A1 discloses a method for the surface treatment of opening rollers, in which the teeth of the sawtooth wire are provided with a nickel-diamond coating. DE 197 08 190 A1 discloses a coating by nitriding or boronizing. The proposed coatings are complex and expensive.

[0005] DE 199 51 775 C1 and CH 969 442 A5 describe a process for chemical deburring and the application of a nickel-diamond coating. The sawtooth wire is cleaned and deburred in an electroplating treatment by immersion in a deburring solution, which leads to a rounding of the edges of the teeth. To produce sawtooth wires, a wire-shaped starting material is usually first subjected to one or more drawing processes. Between the individual drawing processes, various heat treatment processes can also be carried out to at least partially restore the deformability of the drawn wire. Following this preparation, the wire is usually provided with sawtooth teeth using a suitable punching device. The sawtooth teeth produced by the punching process can also be hardened before or after the punching process.After the punching process, small punch marks remain on the surface of the sawtooth wires. Furthermore, the surfaces of the sawtooth wires may also contain impurities caused by previous processing steps, such as scale, i.e., oxide residues, or dirt residues created during the thermal treatment. This electropiling process achieves a condition of the sawtooth wire that is also referred to as a needle finish. EP 0 953 662 A1 also discloses the use of electrochemically deburred sawtooth wires coated with a nickel-diamond coating.

[0006] DE 197 43 754 A1 discloses a sawtooth wire made of a technical ceramic for use in an opening roller. However, these are technically complex to manufacture and therefore result in high costs. CH 702 320 B1 and DE 2 222 918 A1 also address the choice of materials for the production of wear-resistant sawtooth wires, but a wear-resistant design can only be achieved by final hardening of the teeth.

[0007] Furthermore, various methods for coating a sawtooth wire with chromium are known from the prior art, for example, a plasma coating with chromium oxide according to WO 1996 / 22410 A1, a coating with chromium carbide by diffusion treatment according to DE 22 11 991 A1 or GB 1 587 961, or the application of a chromium nitride layer using the PVD process according to DE 41 01 680 A1. Furthermore, CN 111 364 073 A proposes a method in which the sawtooth wire is electroplated with a chromium layer in a continuous process.

[0008] Further processes for hardening fitting elements are known from JPS4811123U and EP1233088A2.

[0009] The methods known from the prior art have the disadvantage that in a first step, the sawtooth wire itself is coated, and only in a second step is the coated sawtooth wire processed for further use in a clothing element. Incorporating the sawtooth wire into a base body to form a clothing element partially damages the coating. For example, the sawtooth wires are bent to conform to the base body or stretched by being pulled onto the base body, which can lead to cracks or flaking of the coating.

[0010] The object of the present invention is to propose a method by which sawtooth wires of clothing elements can be coated without the risk of damaging the coating on the finished clothing element. Furthermore, the object of the invention is to propose a clothing element that has improved wear resistance by avoiding coating defects.

[0011] The problem is solved by the features in the characterizing part of the independent patent claim. To solve the problem, a method for coating a clothing element is proposed. The clothing element has a base body and one or more sawtooth wires held in the base body, which have a root and a blade with teeth arranged one behind the other in a longitudinal direction of the sawtooth wire. The teeth have tooth tips pointing away from the base body. In a first embodiment, the sawtooth wire is inserted with its root into a groove in the base body. This form of fastening the sawtooth wire in the base body is used primarily in the manufacture of clothing elements for opening rollers in spinning machines. In a second embodiment, the sawtooth wire is inserted into the base body with its root adjacent to the root of a neighboring sawtooth wire.This form of fastening the sawtooth wire in the base body is used primarily in the production of clothing elements for use in carding elements in a card or in circular combs for a combing machine. In a third embodiment, the sawtooth wire is wound onto the surface of a roller. The rollers used as the base body can serve as auxiliary elements for coating very long sawtooth wires, which are removed from the auxiliary element after coating and used, for example, for mounting on card rollers. The clothing element is placed in an acid bath to round the edges of the teeth caused by a manufacturing process. In contrast to conventional methods for rounding the edges of sawtooth wires, only the edges of the teeth are rounded in the acid bath.No material is removed from the edges that form the attachment of the sawtooth wire to the base body, resulting in less contamination of the acid bath.

[0012] Following the acid bath, the clothing element is immersed in a coating bath containing an anode for the electrolytic application of a layer of chromium to the sawtooth wire. The clothing element is inserted into the coating bath against the anode in such a way that at least the blade of the respective sawtooth wire is coated with a chromium coating. By inserting the clothing element into the coating bath, it is possible to match the geometry of the anode to the clothing element, or rather to the shape of the sawtooth wires inserted into the base body. It has been shown that a flawless chromium coating leads to high wear resistance of the teeth.Better wear resistance is achieved than with simply hardened teeth or with a nickel-diamond coating due to the higher layer thickness and the elimination of the curing process at higher temperatures, which, for example, leads to a reduction in base hardness in nickel-diamond coatings due to partial tempering. The proposed process also coats the teeth of the sawtooth wires in their shape already adapted to the base body, thus preventing damage to the coating from deformation or attachment of the sawtooth wires following coating. Furthermore, with an appropriate current strength in the electroplating bath, coating is faster than a continuous process for coating endless sawtooth wires, since the coating time per tooth remains the same.

[0013] Preferably, a chrome plating with a layer thickness of 1 μm to 15 μm is applied in the plating bath. The layer thickness depends, among other things, on the distance of the surface to be coated from the anode. Good results have been achieved with a distance of 3 cm to 4 cm between the anode and the tooth tips. It has been shown that a coating thickness of 1 μm to 15 μm can be applied to the tooth tips without flaking in the coating or the coating being prone to irregularities, which have a detrimental effect on the fibers sliding past the coating. The layer thickness decreases continuously from the tooth tips towards the base of the sawtooth wire with increasing distance from the anode.

[0014] Preferably, the clothing element is immersed in the coating bath with the side exhibiting the teeth against the anode located in the coating bath, resulting in a chrome plating of the blade with a layer thickness that decreases towards the base. For example, if layer thicknesses of 10 μm are achieved at the tooth tips, the greater distance from the anode results in layer thicknesses of 1 to 5 μm at the transition from the blade to the base. During transport, combing, carding, or parallelization of the fibers by the teeth of the sawtooth wire, the greatest wear phenomena occur in the upper third of the teeth, facing the tooth tips. The proposed process therefore results in demand-based chrome plating of the sawtooth wires.

[0015] Advantageously, the geometry of the anode corresponds in its design and shape to an enveloping surface of the clothing element, wherein the enveloping surface is formed by a connection of the tooth tips. If the tooth tips of the sawtooth wires in a clothing element are connected to one another, a plane can be spanned across these lines. This plane is subsequently referred to as the enveloping surface. By using an anode corresponding to the respective enveloping surface for each of the clothing elements used, an optimal layer thickness distribution of the chromium plating is achieved. Accordingly, in the case of a clothing element in the form of a clothing ring for an opening roller, the enveloping surface is a cylinder and the anode is also provided in the shape of a cylinder into which the clothing ring is immersed.

[0016] It is also advantageous if the acid bath and the coating bath are formed as a single combined bath, with switching between a rounding phase and a coating phase achieved by switching the polarity of the electrical supply. It has been shown that the chemical solution for the galvanic coating bath is also suitable as a bath for electropolishing the teeth of the sawtooth wire. The only requirement is that the polarity of the clothing element and the anode is reversed compared to the coating process. This can be achieved electrically by simply switching the poles. Because only one combined bath can be used for rounding the edges and for coating, the process is shortened overall. Furthermore, immersion against an anode results in a rounding that decreases in intensity from the tip of the tooth towards the root.This promotes the required retention force on the fibers to be held by the clothing element in a fiber transport application. When using a single combined bath, it is advantageous to clean the clothing element beforehand. Because the clothing elements are cleaned (by rinsing or cleaning bath) before they are first introduced into the combined bath, contamination of the combined bath is minimized and the adhesion of the chrome to the substrate is ensured. Only the metal residues removed by the rounding of the teeth need to be filtered out of the combined bath. Other contaminants such as grease, oil, and oxidation residues are removed in this way during a prior treatment of the clothing element and do not contribute to contamination of the combined bath.

[0017] Preferably, the fitting element is rinsed after the coating bath. Following the coating process, the fitting element must be freed of chemical residues before further use.

[0018] This is advantageously done by immersing the fitting element in a sink or dynamically by means of a liquid jet and ultrasound.

[0019] A sawtooth set with hardened teeth is preferred for use in the fitting element. Hardening the teeth before coating can potentially extend the service life of the fitting elements. With even tooth wear, the hard surface of the teeth further delays wear after the coating has been worn through. In addition, the hard surface helps prevent particle impacts on the chrome layer, preventing cracks from forming (eggshell effect).

[0020] To achieve the further object, a clothing element is proposed with a base body and one or more sawtooth wires held in the base body, wherein the sawtooth wires have a base and a blade provided with teeth arranged one behind the other in a longitudinal direction of the sawtooth wire. The teeth have tooth tips pointing away from the base body. In a first embodiment, the sawtooth wire is inserted with its base in a groove of the base body. In a second embodiment, the sawtooth wire is inserted into the base body with its base adjacent to a base of a respective adjacent sawtooth wire without play. In a third embodiment, the sawtooth wire is wound onto a surface of a roller.At least the teeth of the sawtooth wire have a coating of chromium, wherein the coating is applied by immersing the clothing element in an acid bath to round off edges of the teeth caused by a manufacturing process, followed by an electrolytic coating bath with an anode.

[0021] By immersing the fitting element, surfaces of the sawtooth wire, particularly the base, which are in contact with the base body or with a neighboring sawtooth wire due to the sawtooth wire's attachment to the base body are not coated. This results in clear coating boundary lines on the sawtooth wire, which leads to savings in chromium consumption compared to conventional chrome plating of the sawtooth wires. When the lateral surfaces of the bases of neighboring sawtooth wires touch, a chrome tear-off edge is created, which is mirrored on the neighboring sawtooth wires. Penetration of chromium electrolyte between the neighboring sawtooth wires cannot be completely ruled out, but is minimized by the sawtooth wires being pressed against each other.

[0022] In a first embodiment, the clothing element is a carding element for a carding machine or carding machine. In carding elements, the sawtooth wires are cut to a length corresponding to the length of the carding element or are produced directly in the required wire length through a punching process. These sections of sawtooth wire are inserted side by side into the base body and secured. The attachment can be achieved, as is known from the prior art, by positive, force, or frictional engagement.

[0023] In a further embodiment, the clothing element is an opening roller or a clothing ring for an opening roller for a rotor spinning machine, wherein the clothing ring or a part of the opening roller is designed as a base body in the form of a cylindrical hollow body with a sawtooth wire applied to an outer surface of the base body. When clothing rings are used, these are each attached to a rotatably arranged axle stub. A spiral-shaped groove is machined into the outer surface of the base body, into which the sawtooth wire is inserted with its base. The use of a clothing ring has the advantage that it is easily replaceable and can be replaced with a new one once its service life has been reached.

[0024] In an alternative embodiment, the cylindrical hollow body and the sawtooth wire are formed as a single piece, with the blade of the sawtooth wire being formed by the cylindrical hollow body. This design is also known as a solid ring. The single-piece design of the clothing ring complicates manufacturing, but also eliminates the need to thread and secure the clothing wire to the base body.

[0025] In another embodiment, the clothing element is a circular comb element for a combing machine. Circular combs are equipped with prefabricated clothing elements, which together form the circular comb clothing. The sawtooth wires are assembled in a base body in the form of punched sawtooth elements.

[0026] In a further embodiment, the cylindrical base body of the clothing element is an auxiliary element for coating a sawtooth wire for a roller of a carding machine or carding machine. Several kilometers of continuous sawtooth wires are wound onto the rollers. The rollers are too large, and removing a roller for reclothing is too complex to chrome-plate it as a whole in a single bath. However, in order to utilize the advantages of chrome-plating the sawtooth wires while installed with a base body, an auxiliary element corresponding to the roller is used, onto which the sawtooth wire is wound spirally. The anode can be designed as an arc segment, corresponding to the roller, with the clothing element being inserted into the coating bath against the anode and held rotating about an axis above the anode. This allows the size of the anode to be kept within reasonable limits.The coating bath can also be made smaller than the auxiliary element, since the auxiliary element does not have to be inserted into the coating bath with its full diameter.

[0027] In the following, the invention is explained using an exemplary embodiment and explained in more detail by the following figures, which show

[0028] Figure 1 shows a sawtooth wire in a schematic representation;

[0029] Figure 2 shows a schematic representation of a cross-section of the sawtooth wire at point XX according to Figure 1;

[0030] Figure 3 shows a first embodiment of a fitting element in a schematic representation;

[0031] Figure 4 shows a schematic representation of a cross-section of the fitting element at point Y according to Figure 3;

[0032] Figure 5 shows a second embodiment of a fitting element in a schematic representation;

[0033] Figure 6 shows a third embodiment of a fitting element in a schematic representation;

[0034] Figure 7 shows a fourth embodiment of a fitting element in a schematic representation;

[0035] Figure 8 shows a fifth embodiment of a fitting element in a schematic representation;

[0036] Figure 9 shows a schematic view Y of the fitting element according to Figure 8:

[0037] Figure 10 shows a first embodiment of the method in a schematic representation and

[0038] Figure 11 shows a second embodiment of the method in a schematic representation.

[0039] Figure 1 shows a schematic representation of a sawtooth wire 6 and Figure 2 shows a corresponding cross-section of the sawtooth wire 6 at the point XX according to Figure 1. The sawtooth wire 6 has a foot 8 and a blade 9, the blade 9 having a smaller cross-section than the foot 8 provided for fastening in a base body 3 (see Figure 3). Teeth 10 are formed in the blade 9 and are arranged one behind the other in a longitudinal direction 7. The teeth 10 each have a tooth point 11. The geometric shape of the teeth 10 shown is exemplary; a variety of shapes of the teeth 10 are known from the prior art, depending on the field of application of the sawtooth wires 6. The geometric designs of the foot 8 and the blade 9 shown are also selected as examples.

[0040] Figure 3 shows a first embodiment of a clothing element in the form of a carding element 12 for a carding machine or carding machine in a schematic representation, and Figure 4 shows a corresponding cross-section of the clothing element 12 at point Y according to Figure 3. The carding element 12 is composed of a base body 3 and sawtooth wires 6 arranged side by side, held therein. The sawtooth wires 6 are inserted into the base body 3 with their base 8, with lateral surfaces of the bases 8 of adjacent clothing wires 6 touching each other. By connecting the tooth tips 11 of the individual teeth 10, an enveloping surface 2 is created.

[0041] Figure 5 shows a schematic representation of a second embodiment of a clothing element in the form of a clothing ring 14 for an opening roller of a rotor spinning machine. The base body is formed as a rotationally symmetrical hollow body 15 with an axis 17. A spiral-shaped groove 4 for receiving the sawtooth wire 6 is machined into an outer surface 16 of the hollow body 15. Connecting the tooth tips 11 of the individual teeth 10 results in an enveloping surface 2, which forms a cylindrical shape in the clothing ring 14.

[0042] Figure 6 shows a schematic representation of a third embodiment of a clothing element in the form of an opening roller 13. The base body 3 and the teeth 10 are formed in a one-piece cylindrical shape with an axis 17. The base body 3 is held on an axle bolt 18 located in the axis 17 by a fastening element 19. The fastening element 19 is shown, by way of example, as a disk in combination with a screw. By connecting the tooth tips 11 of the individual teeth 10, an enveloping surface 2 is produced. Figure 7 shows a schematic representation of a fourth embodiment of a clothing element in the form of a circular comb element 20. The sawtooth wires 6 are held on a curved base body 3. By connecting the tooth tips 11 of the individual teeth 10, a correspondingly curved enveloping surface 2 is produced.

[0043] Figure 8 shows a fifth embodiment of a clothing element 1 in a schematic representation, and Figure 9 shows a corresponding view Z of the clothing element 1 according to Figure 8. The base body is designed as a cylindrical auxiliary element 22 with an axis 17. The sawtooth wire 6 is wound spirally on a surface 5 of the auxiliary element 22. A cylindrical enveloping surface 2 is formed by the tooth tips 11 of the individual teeth 10 of the clothing wire 6.

[0044] Figure 10 shows a first embodiment of the method for coating a clothing element 1 in a schematic representation. The clothing element 1 is immersed in a first acid bath 23. In this bath, the edges of the teeth of the sawtooth wire 6 created by the production of the sawtooth wires 6 are rounded. The rounded clothing element 30 is removed from the acid bath 23 and introduced into the coating bath 24. In the coating bath 24, the rounded clothing element 30 is guided against an anode 26 located in the coating bath 23. The coating bath 24 contains a chromium solution and is equipped with an electrical supply 27. Subsequently, a coating of the clothing element 30, or rather the sawtooth wires 6, is carried out, determined by a current intensity and a coordinated voltage curve. The coated clothing element 31 is removed from the coating bath 24 and fed for further processing.

[0045] Figure 11 shows a second embodiment of the method for coating a clothing element 1 in a schematic representation. The clothing element 1 is introduced into a combined bath 25. The combined bath 25 has an anode 26 and an electrical supply 27 and contains a chromium solution. The electrical supply 27 is additionally equipped with a pole switching device 28. The sawtooth wires 6 of the clothing element 1 located in the combined bath 25 are first rounded depending on a position of the pole switching device 28 and, after the pole switching device 28 is changed, provided with a chromium coating. The coated clothing element 31 is removed from the combined bath 24 and introduced into a rinsing bath 29. The rinsed clothing element 32 is then removed from the rinsing bath 29 and fed for further processing.

[0046] The present invention is not limited to the embodiments illustrated and described. Modifications within the scope of the patent claims are possible, as are combinations of features, even if they are described in different embodiments.

[0047] legend

[0048] 1 set element

[0049] 2 Envelope

[0050] 3 basic bodies

[0051] 4 grooves

[0052] 5 Surface

[0053] 6 sawtooth wire

[0054] 7 Longitudinal direction

[0055] 8 feet

[0056] 9 sheets

[0057] 10 teeth

[0058] 11 Tooth tip

[0059] 12 carding element

[0060] 13 Opening roller

[0061] 14 set ring

[0062] 15 hollow bodies

[0063] 16 Outer surface

[0064] 17 Axis

[0065] 18 Axle bolt 19 Fastening element

[0066] 20 circular comb element

[0067] 21 Fastening

[0068] 22 Auxiliary element 23 Acid bath

[0069] 24 coating bath

[0070] 25 Combined bathroom

[0071] 26 Anode

[0072] 27 Electrical supply 28 Pole switching

[0073] 29 Rinse bath

[0074] 30 Rounded trim element

[0075] 31 Coated fitting element

[0076] 32 Rinsed trim element

Claims

Patent claims 1. A method for coating a clothing element (1), wherein the clothing element (1) has a base body (3) and one or more sawtooth wires (6) held in the base body (3), which sawtooth wires have a base (8) and a blade (9) with teeth (10) arranged one behind the other in a longitudinal direction (7) of the sawtooth wire (6), wherein the sawtooth wire (6) is inserted with its base (8) in a groove (4) of the base body (3) or is inserted with its base (8) adjacent to a base (8) of a respective adjacent sawtooth wire (6) in the base body (3) or is wound onto a surface (5) of an auxiliary element (22), and the teeth (10) have tooth tips (11) pointing away from the base body (3), characterized in that the clothing element (1) is immersed in an acid bath (23) for rounding edges of the teeth (11) caused by a manufacturing process,and is then immersed in a coating bath (24) with an anode (26) for the electrolytic application of a layer of chromium to the sawtooth wire (6), wherein the clothing element (1) is introduced into the coating bath (24) against the anode (26) in such a way that at least the blade (9) of the respective sawtooth wire (6) is coated with a coating of chromium.

2. Method according to claim 1, characterized in that chromium plating with a layer thickness of 1 pm to 15 pm takes place in the coating bath (24).

3. Method according to claim 1 or 2, characterized in that the clothing element (1) is immersed with a side having the teeth (11) into the coating bath (24) against the anode (26) located in the coating bath (24), whereby a chromium plating of the blade (9) results with a layer thickness decreasing towards the base (8).

4. Method according to at least one of the preceding claims, characterized in that a geometry of the anode (26) corresponds in its design and shape to an enveloping surface (2) of the fitting element (1), wherein the enveloping surface (2) is formed by a connection of the tooth tips (11).

5. Method according to at least one of the preceding claims, characterized in that the acid bath (23) and the coating bath (24) are formed by a single combined bath (25), wherein a switching between a rounding phase and a coating phase is achieved by a pole switching (28) of the electrical supply (27).

6. Method according to claim 5, characterized in that when using a single combined bath (25) the fitting element (1) is cleaned beforehand.

7. Method according to at least one of the preceding claims, characterized in that the clothing element (1) is subjected to rinsing after the coating bath (24, 25).

8. Method according to at least one of the preceding claims, characterized in that a sawtooth set (6) with hardened teeth (11) is used for an insert in the set element (1).

9. Accessory element (1) with a base body (3) and one or more sawtooth wires (6) held in the base body (3), wherein the sawtooth wires (6) have a foot (8) and a blade (9) provided with teeth (10) arranged one behind the other in a longitudinal direction (7) of the sawtooth wire (6), and wherein the sawtooth wire (6) is inserted with its foot (8) in a groove (4) of the base body (3) or inserted into the base body (3) adjacent to a foot (8) of a respective adjacent sawtooth wire (6) without play or wound onto a surface (5) of a cylindrical base body (3), and the teeth (10) have tooth tips (11) pointing away from the base body (3), characterized in that at least the teeth (11) of the sawtooth wire (6) have a coating of chromium, wherein the coating is applied by immersing the accessory element (1) in an acid bath (23),for rounding edges of the teeth (11) caused by a manufacturing process, and a subsequent electrolytic coating bath (24) with an anode (26) is provided., 10. Fitting element (1) according to claim 9, characterized in that a layer thickness of the coating at the tooth tips (11) of the sawtooth wire (6) is 1 pm to 15 pm.

11. Clothing element (1) according to at least one of claims 9 or 10, characterized in that the clothing element (1) is a carding element (12) for a carding machine or carding machine.

12. Clothing element (1) according to at least one of claims 9 or 10, characterized in that the clothing element (1) is an opening roller (13) or a clothing ring (14) for an opening roller (13) for a rotor spinning machine, wherein a part of the opening roller (13) or the clothing ring (14) is designed as a cylindrical hollow body (15) with a sawtooth wire (6) applied to an outer surface (16) of the hollow body (15).

13. Fitting element (1) according to claim 12, characterized in that the cylindrical hollow body (15) and the sawtooth wire (6) are formed in one piece, the blade (9) of the sawtooth wire (6) being formed by the cylindrical hollow body (15).

14. Clothing element (1) according to at least one of claims 9 or 10, characterized in that the clothing element (1) is a circular comb element (20) for a combing machine.

15. Clothing element (1) according to at least one of claims 9 or 10, characterized in that the cylindrical base body (3) of the clothing element (1) is an auxiliary element (22) for coating a sawtooth wire (6) for a roller of a carding machine or carding machine.

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