EP1965461B1 - Textile material with a switching module and an antenna - Google Patents

Description

The invention relates to a textile material with a circuit module and an antenna according to the preamble of claim 1.

For the identification of goods in production, logistics, sales and repair, transponders made up of a circuit module and antenna are increasingly being used, which are superior to conventional barcodes in terms of readability, data volume and manipulation security. The use of transponders is also being sought for textile goods, but because of their flexible character and the need for cleaning in hot and / or chemically aggressive media, higher demands are made. The transponder must not interfere with the intended use of the textile goods, must be resistant to mechanical, thermal and chemical influences and still work physically reliable.

A textile material with a circuit module and an antenna is already from the WO 2005/071605 A2 famous. The antenna disclosed there is designed as an E-field radiator for an operating frequency in the UHF or microwave range and consists entirely of electrically conductive components of the textile material itself in the form of electrically conductive thread constructions that are machined within the usual textile industrial manufacturing process weaving to form antenna structures are workable.

When the E-field radiator is accommodated in textile materials with a small area, for example textile labels, it is usually necessary to shorten the E-field radiator mechanically. With a working frequency in the UHF range and with a working frequency in the microwave range, at least in the UHF range, an electrical extension of the mechanically shortened E-field radiator is necessary in order to match its resonance frequency to the working frequency.

the WO 2005/071605 A2 generally teaches, if a mechanical shortened E-field radiator has to be brought into resonance with the working frequency by inductances, that its geometry has to be designed to be compatible with the industrial manufacturing process customary in textiles.

So is from the WO 2005/071605 A2 known that in the weaving manufacturing process antenna structures can be formed by meandering structures from a continuous electrically conductive weft thread, which is guided between each weft over a distance corresponding to several weft thread sizes on the respective selvedge parallel to the warp threads. Such a dipole antenna with a circuit module connected to the centrally separated dipole is shown in FIG Fig. 1a the WO 2005/071605 A2 shown.

From the WO 2005/071605 A2 It is also known that in the manufacturing process of broadband weaving, i.e. when weaving with a broad weaving machine, the antenna structures are placed next to one another in a large number comprise lying, electrically conductive weft threads to form two electrically conductive surfaces. The circuit module is arranged between the aforementioned surfaces and is galvanically connected to the electrically conductive surfaces via electrically conductive warp threads which run across all the weft threads of the electrically conductive surfaces. Such a patch antenna with a centrally connected circuit module is shown in Fig. 1d the WO 2005/071605 A2 shown.

From the WO 2005/074071 A1 a textile material with antenna components of an HF transponder is known. The antenna components consist of electrically conductive parts of the textile material itself and are E-field emitters. In the case of material in web form, the antenna components can extend in the web direction and / or at an angle to the web direction and / or transversely to the web direction.

Furthermore, from the WO 2006/029543 A1 a tape fabric with an antenna thread for an RF transponder is known. On a base fabric produced by means of a needle loom, an antenna thread is laid in a zigzag shape from one edge of the tape to the other and fixed by floating warp threads, preferably adhesively or by melting.

It has now been found that textile materials with the antenna structures mentioned can only be produced with weaving machines, which either have to be converted at great expense or newly purchased equipped with appropriate additional modules.

The invention is therefore based on the object in a Textile material with electrically conductive thread constructions to create an antenna structure that can be produced with conventional weaving machines together with the textile material.

In the case of a textile material according to the preamble of claim 1, this object is achieved by the characterizing features of claim 1.

Further developments and advantageous refinements of the invention result from the dependent claims.

In the solution according to the invention, the antenna structures are formed by asymmetrical meander structures in the manufacturing process of narrow band weaving. These comprise a continuous, electrically conductive weft thread, which in sections runs parallel and / or obliquely to the warp threads and is led back to the knitted edge between the sections transversely to the warp threads and directly back.

Such an antenna structure can be produced in a simple manner at high production speed on a conventional narrow-band weaving machine together with the textile material. For this purpose, no complex conversion measures are advantageously required.

The production of the textile material takes place in a known manner in narrow band weaving by means of a needle loom. In order to form the antenna structure according to the invention, the continuous electrically conductive weft thread is initially inserted as a thread system at a predetermined point specified shed up to the knitted edge, which can also be referred to as crochet edge, entered, fixed there and led back directly to the starting point of the weft insertion. The predetermined point can be anywhere in the textile material at a distance from the knitting edge. The point can, for example, be close to the selvedge opposite the knitted edge, in the middle or somewhere between the knitted edge and the named selvedge. The position is determined by opening a corresponding shed. After the continuous electrically conductive weft thread has been returned directly to the starting point of the weft insertion, no further insertion of the continuous electrically conductive weft thread takes place over a predetermined distance. The textile material is further woven in a known manner and the continuous electrically conductive weft thread is carried outside the textile material. At a next predetermined point, the continuous electrically conductive weft thread that is carried along is again inserted into a predetermined shed as far as the knitted edge, fixed there and returned directly to the starting point of the weft insertion.

If the starting point of this thread weft entry is at the same level as the starting point of the previous entry of the continuous electrically conductive weft thread, the section between these two starting points runs parallel to the warp threads. Otherwise the section would run obliquely to the warp threads. The section is formed by the continuous electrically conductive weft thread entrained outside the textile material.

After the continuous electrically conductive weft thread was returned directly to the second starting point of the weft insertion, there is again no further insertion of the electrically conductive weft thread over a predetermined distance. The textile material is further woven in a known manner and the continuous electrically conductive weft thread is carried outside the textile material. At a next predetermined point, the continuous electrically conductive weft thread that is carried along is again inserted into a predetermined shed as far as the knitted edge, fixed there and returned directly to the starting point of the weft insertion. The process continues in this way.

Because the point of entry of the continuous electrically conductive weft thread can be specified, various antenna structures can be created within the scope of the invention by asymmetrical meander structures that can be optimally adapted to the existing conditions, for example the size of the textile material. Known narrow belt looms advantageously do not need to be converted in a costly manner for this purpose.

A further development of the invention provides that the electrically conductive weft thread is insulated.

It has been shown that the E-field radiator can be mechanically shortened even further by isolating the electrically conductive weft thread. This is particularly advantageous in the case of textile materials with a small area that offer little space for the E-field radiator. This also ensures that a possible short circuit between the to Active edge back and the directly returned electrically conductive weft thread is avoided. Such a short circuit would have the consequence that the corresponding branch of the E-field radiator, which is formed by the electrically conductive weft thread leading to the active edge and directly back again, would fail completely.

According to an advantageous embodiment of the invention, it is provided that the sections are designed to be the same and / or of different lengths.

As already stated above, the point of entry of the continuous electrically conductive weft thread can be specified. In the same way, the path, that is to say the distance, between two entries of the continuous electrically conductive weft thread can also advantageously be specified. Within the scope of the invention, further antenna structures can therefore be created by asymmetrical meander structures that can be optimally adapted to the existing conditions, such as space requirements, antenna gain or bandwidth. Known narrow belt looms advantageously do not need to be converted in a costly manner for this purpose.

Furthermore, it is provided that the textile material is an end-folded textile label, the antenna structure running over the entire length of the textile label, so that the antenna structure is arranged twice in the end fold.

In narrow band weaving, numerous interconnected textile labels are usually produced without interruption. On one side are the textile labels through the Knitted edge, limited on the other side by the selvedge.

As already stated, the antenna structure is formed by a continuous, electrically conductive weft thread, which runs from one textile label to the next textile label etc. without interruption during narrow band weaving.

After narrow band weaving, the textile labels are cut individually, i.e. separated from one another. The textile labels are usually hot cut in order to seal the cutting edges fray-proof. According to the invention, the antenna structure thus runs over the entire length of the textile label. Since the cutting edges are relatively sharp-edged, the textile labels are folded end, that is, folded left and right.

It has now been found to be advantageous that the antenna structure is arranged twice in the end fold. This means that the antenna has a larger bandwidth. The continuous electrically conductive weft thread therefore advantageously does not have to have an exact length. As a result, further textile processing can advantageously also take place on standard cutting and folding machines.

A further development of the invention provides that at least one insulated, electrically conductive warp thread is provided, which crosses the electrically conductive weft threads and / or that at least one isolated or non-insulated, electrically conductive warp thread is provided, which is arranged without contact next to the antenna structure.

It has been shown that one or more such warp threads enable the E-field radiator to be shortened mechanically. This is particularly advantageous in the case of textile materials with a small area that offer little space for the E-field radiator.

It is particularly expedient that in each case at least one further textile weft thread is led back and forth to the knitting edge together with the electrically conductive weft thread into the shed provided for the electrically conductive weft thread that is led back and forth to the knitting edge.

By inserting at least one further, non-electrically conductive textile weft thread, which is led back and forth to the knitting edge in the same shed as the electrically conductive weft thread, an additional distance is created between the electrically conductive weft thread led back and forth. Because the electrically conductive weft thread leading to the active edge is spaced apart from the electrically conductive weft thread (s) that are directly returned by the textile weft thread or threads, the E-field radiator can also advantageously be shortened mechanically as a whole.

The electrically conductive thread or threads are preferably selected from the group comprising a metal-coated plastic thread, a plastic thread wrapped with a metal wire or a metal braid, a plastic thread with an integrated metal wire or an integrated one Includes metal braid and a graphite thread.

The selection depends on which type of electrically conductive threads can be processed with the respective manufacturing process narrow band weaving or broadband weaving, which type of electrically conductive threads have sufficient electrical conductive properties, how contact is made with the circuit module and whether and which chemical influences are exerted will.

The electrically conductive insulated thread or threads are preferably selected from the group comprising a plastic thread with an integrated insulated metal wire, a plastic thread with an integrated insulated metal strand, an insulated metal wire and an insulated metal strand.

The circuit module can be connected to the antenna structure with contacts.

Antenna connections of the circuit module can be connected to the radiator by crimped connections, welded connections, soldered connections or adhesive connections with conductive adhesive.

During the manufacturing process, the textile material is initially manufactured without the circuit module. The circuit module is then connected to the radiator. Crimp connections have the advantage that, together with the attachment of the circuit module, they establish the electrical contact between the antenna connections and the radiator connections. the Connection is made by mechanical tension and is therefore also possible between conductive materials that cannot be electrically connected to one another by welding or soldering.

The circuit module can also be mechanically fixed to the textile material at the same time by means of crimp connections, if several threads can be enclosed, which then jointly ensure the necessary tensile strength. These can be electrically conductive and / or non-conductive threads.

Welded joints and soldered joints can be made between conductive materials made of metals.

Finally, adhesive connections with conductive adhesive are also possible for materials that are not suitable for crimped connections, welded connections and soldered connections.

The circuit module itself and its antenna connections are preferably enclosed by a potting compound and the potting compound is simultaneously connected to the area of the textile material adjacent to the circuit module. The circuit module is fixed to the textile material by the potting compound, since the potting compound penetrates deep into the textile material due to the capillary effect. Separation is only possible through destruction, so that manipulations can be identified. Furthermore, the circuit module is also protected against mechanical and chemical influences by the casting compound. The additional integration of the antenna connections ensures protection of the contacts and at the same time provides strain relief for the ends of the lamp, which creates a risk of breakage at the antenna connections of the circuit module is reduced. A silicone compound has proven to be particularly suitable as a potting compound, which enables both protection and fixation of the circuit module on the textile material.

The circuit module is particularly preferably coupled into the antenna in a contactless manner.

Contactless coupling of the circuit module is achieved by a coupling element that couples inductively and / or capacitively into the antenna. For this purpose, an electronic chip module is arranged together with the coupling element on the contactless circuit module. As described above, the antenna itself is designed as an E-field radiator and does not require any galvanic connection to the chip module and coupling element.

The combination of the appropriately matched coupling element and the antenna also leads to an increase in the bandwidth of the overall system, which means that it can be operated on different but adjacent frequencies due to different national regulations without structural changes or coordination.

The coupling element is preferably arranged at a location on the electrical antenna at which a minimum standing wave ratio occurs.

The inventive design of the electrical antenna as a dipole enables resonant tuning to the working frequency and an antenna gain compared to an isotropic radiator. The arrangement of the coupling element at a location on the electrical antenna at which a minimum standing wave ratio occurs results in optimal adaptation and range.

The contactless circuit module can be connected to the textile material by a reversibly detachable or irreversibly non-detachable fastening means.

In reversibly detachable contactless circuit modules, the contactless circuit module z. B. after a manufacturing, transport or sales process, if the information is then no longer needed or should not be used by unauthorized persons.

In the case of irreversibly inextricably linked contactless circuit modules, the information should remain permanently linked to the textile material. This makes manipulations more difficult and not possible without destroying the composite of textile material on the one hand and the contactless circuit module on the other hand.

The fastening means can be designed as at least one pin attached to the contactless circuit module and penetrating the textile material and a button that receives one end of the pin and the contactless circuit module is arranged on the opposite side of the textile material.

This design of the fastener enables a positive connection and is therefore particularly safe. In the case of a reversibly detachable design, removal can also only be possible with a special tool in order to prevent unauthorized removal.

The fastening means can also be designed as a weld or bond or lamination or lamination or gluing or crimping or adhesive film or by means of a patch connection produced under heat and pressure.

The fastening means can be designed as a thermal or reactive adhesive.

A thermal adhesive is particularly preferred, since known weaving machines usually comprise a heatable roller. This can be used accordingly to connect the contactless circuit module to the textile material.

Furthermore, the fastening means can be formed from discrete connection points or very fine, perforated adhesive film.

By restricting the connection to discrete connection points or a very fine, that is to say thin and flexible, perforated adhesive film, stiffening of the connected layers of the contactless circuit module and the textile material is avoided.

The fastening means can also be formed from weaving yarns which are placed over the contactless circuit module in the area of the contactless circuit module and outside the contactless circuit module Circuit module are woven with the fabric of the textile material.

This enables the contactless circuit module to be fastened integrally within a fabric of the textile material. The connection can be made within the usual textile industrial manufacturing process weaving.

The fastening means can also be designed as a Velcro fastener.

This enables the contactless circuit module to be fastened and released quickly.

The contactless circuit module can be sealed with a coating.

This coating can effectively protect the contactless circuit module against mechanical and chemical influences.

Fig. 1

eine Draufsicht auf die Rückseite eines ungefalteten Schmalband-Textiletiketts mit einem E-Feld-Strahler in unsymmetrischen Mäanderstrukturen, wobei der durchgehende elektrisch leitfähige Schussfaden abschnittsweise nur parallel zu den Kettfäden verläuft,

Fig. 2

eine Draufsicht auf die Rückseite eines ungefalteten Schmalband-Textiletiketts mit einem E-Feld-Strahler in unsymmetrischen Mäanderstrukturen, wobei der durchgehende elektrisch leitfähige Schussfaden abschnittsweise parallel und schräg zu den Kettfäden verläuft,

Fig. 3

eine Draufsicht auf die Rückseite eines endgefalteten Schmalband-Textiletiketts mit einem E-Feld-Strahler in unsymmetrischen Mäanderstrukturen und einem kontaktlosen Schaltungsmodul, wobei der durchgehende elektrisch leitfähige Schussfaden verschieden lange Abschnitte aufweist, die parallel und schräg zu den Kettfäden verlaufen,

Fig. 4

eine Draufsicht auf die Rückseite eines endgefalteten Schmalband-Textiletiketts mit einem E-Feld-Strahler in unsymmetrischen Mäanderstrukturen und einem kontaktbehafteten Schaltungsmodul, wobei der durchgehende elektrisch leitfähige Schussfaden verschieden lange Abschnitte aufweist, die parallel und schräg zu den Kettfäden verlaufen,

The invention is explained below with reference to exemplary embodiments which are shown in the drawing. In this show

Fig. 1

a top view of the back of an unfolded narrow band textile label with an E-field radiator in asymmetrical meandering structures, the continuous electrically conductive weft thread in sections only parallel to the warp threads runs,

Fig. 2

a top view of the back of an unfolded narrow band textile label with an E-field radiator in asymmetrical meandering structures, the continuous electrically conductive weft thread running in sections parallel and at an angle to the warp threads,

Fig. 3

a top view of the back of a folded narrow band textile label with an E-field radiator in asymmetrical meander structures and a contactless circuit module, the continuous electrically conductive weft thread having sections of different lengths that run parallel and obliquely to the warp threads,

Fig. 4

a plan view of the back of a folded narrow band textile label with an E-field radiator in asymmetrical meandering structures and a contact-based circuit module, the continuous electrically conductive weft thread having sections of different lengths that run parallel and obliquely to the warp threads,

In Fig. 1 Figure 3 is a plan view of the back of a fabric in the form of an unfolded narrow band textile label 10 with an antenna 12. The illustrated textile label 10 was cut out from a series of interconnected textile labels. The cuts are shown schematically by the serpentine lines shown on the left and right side of the textile label 10. The antenna 12 is designed as a mechanically shortened E-field radiator. The antenna structures are formed by asymmetrical meander structures that comprise a continuous electrically conductive weft thread 14, which runs in sections parallel to the warp threads (not shown here) and is guided back and forth between the sections 16 transversely to the warp threads (not shown here) to the knitting edge 18. The knitted edge 18 is also referred to as a crochet edge.

Such an antenna structure can be produced in a simple manner at high production speed on a conventional narrow-band weaving machine together with the textile material.

In Fig. 2 a plan view of the rear side of a textile material in the form of an unfolded narrow band textile label 10 with an antenna 12 is shown. The antenna 12 is designed as a mechanically shortened E-field radiator. The antenna structures are formed by asymmetrical meander structures which comprise a continuous electrically conductive weft thread 14, which runs in sections parallel and / or obliquely to the warp threads (not shown here) and between the sections 16 transversely to the warp threads (not shown here) Active edge 18 is led back and forth directly.

As already stated elsewhere, the continuous electrically conductive weft thread 14 is inserted somewhere in the textile material at predetermined points. The relative position of two adjacent points determines whether the section 16 formed by the continuous electrically conductive weft thread 14 runs parallel or obliquely to the warp threads (not shown here).

As a result, various antenna structures can be implemented within the scope of the invention without the narrow-band weaving machine having to be laboriously converted.

Because the continuous conductive weft thread 14 runs in some sections 16, as shown, at an angle to the warp threads (not shown here), the antenna structure has a trimming function.

Another implementation of an antenna structure is in Fig. 3 shown. This shows a plan view of the back of a textile material in the form of a folded-end narrow band textile label 10 with an antenna 12 and a contactless circuit module 20 made of an electronic chip module and coupling element. The antenna 12 is designed as a mechanically shortened E-field radiator. The antenna structures are formed by asymmetrical meander structures which comprise a continuous electrically conductive weft thread 14 which runs in sections parallel and obliquely to the warp threads (not shown here) and between the sections 16 transversely to the warp threads (not shown here) is led back to the active edge 18 and directly.

Fig. 3 clearly shows that the lengths of the sections 16 can also be specified. The further away or the later the insertion of the electrically conductive weft thread 14 following a previous insertion of the electrically conductive weft thread 14 takes place, the longer the sections 16 become.

As a result, numerous other antenna structures can be implemented within the scope of the invention. In Fig. 3 For example, an antenna structure is shown which widens from above the center of the textile label 10 on both sides, that is to the left and right, over the entire length of the textile label 10 downward in a trumpet shape. An antenna structure of this type provides an optimal bandwidth. The length of the sections 16 becomes smaller the further they move away from the center of the textile label 10.

Fig. 3 also shows that the textile label 10 is folded end, that is, folded left and right. Since the antenna structure runs over the entire length of the textile label 10, the bandwidth of the antenna 12 is further increased in that the antenna structure is arranged twice in the end fold 22.

The circuit module 20 is coupled into the antenna 12 without contact. The illustrated arrangement of the circuit module 20 in the upper center of the textile label between two entries of the continuous electrically conductive weft thread 14 has proven particularly useful.

Fig. 4 shows a plan view of the rear side of a folded-end narrow band textile label 10 with an antenna 12 in asymmetrical meandering structures and a circuit module 24 with contacts.

The general structure of the illustrated textile label 10 with the antenna 12 corresponds to that in FIG Fig. 3 illustrated textile label 10, so that in order to avoid repetition of the explanations Fig. 3 is referred. The same reference numbers denote the same parts.

Instead of a contactless circuit module, in Fig. 4 however, a circuit module 24 with contacts is provided. This is arranged centrally between two entries of the continuous electrically conductive weft thread 14 and galvanically connected to these weft threads 14 running transversely to the warp threads (not shown here). The galvanic connection can be a soldered connection, for example.

List of reference symbols (part of the description)

10

Narrow band textile label

12th

antenna

14th

Continuous, electrically conductive weft thread

16

section

18th

Effective edge

20th

contactless circuit module

22nd

End fold

24

contact-based circuit module

Claims (20)

1. Textile material having a circuit module (20, 24) and an antenna (12), wherein the antenna (12) is in the form of an E-field emitter for an operating frequency in the UHF or microwave range and is completely composed of parts of the textile material itself in the form of electrically conductive thread structures, wherein antenna structures of a narrow-strip fabric produced on a needle weaving machine are formed by asymmetrical meander structures which comprise a continuous electrically conductive thread which runs outside the textile material in sections (16) parallel and/or oblique with respect to the warp threads, characterized in that the antenna structure is produced together with the textile material in that the electrically conductive thread is introduced into the narrow-strip fabric as an electrically conductive weft thread (14) between the sections (16), is arranged between a starting point of the introduction and an active edge (18) within the narrow-strip fabric transverse to warp threads and runs from the starting point of the introduction to the active edge (18), is fixed there and runs directly back from the active edge (18) to the starting point of the introduction.
2. Textile material according to Claim 1, characterized in that the electrically conductive weft thread (14) is insulated.
3. Textile material according to Claim 1 or 2, characterized in that the sections (16) have the same or different lengths.
4. Textile material according to one of Claims 1 to 3, characterized in that the textile material is a folded-end textile label (10), wherein the antenna structure runs over the entire length of the textile label (10), with the result that the antenna structure is arranged twice in the end fold (22).
5. Textile material according to one of Claims 1 to 4, characterized in that at least one insulated, electrically conductive warp thread is provided and crosses the electrically conductive weft threads (14), or in that at least one insulated or non-insulated, electrically conductive warp thread is provided and is contactlessly arranged beside the antenna structure.
6. Textile material according to one of Claims 1 to 5, characterized in that, together with the electrically conductive weft thread (14), a further textile weft thread is respectively introduced into the narrow-strip fabric between the sections (16), is arranged between a starting point of the introduction and an active edge (18) within the narrow-strip fabric transverse to warp threads and runs from the starting point of the introduction to the active edge (18), is fixed there and runs directly back from the active edge (18) to the starting point of the introduction.
7. Textile material according to one of Claims 1 to 6, characterized in that the electrically conductive thread(s) (14, 30, 32) is/are selected from the group comprising a plastic thread coated with metal, a plastic thread wrapped with a metal wire or a metal strand, a plastic thread having an integrated metal wire or an integrated metal strand, and a graphite thread.
8. Textile material according to one of Claims 2 to 7, characterized in that the electrically conductive insulated thread(s) (14, 36) is/are selected from the group comprising a plastic thread having an integrated insulated metal wire, a plastic thread having an integrated insulated metal strand, an insulated metal wire, and an insulated metal strand.
9. Textile material according to one of Claims 1 to 8, characterized in that the circuit module (24) is coupled to the antenna structure in a contact-based manner.
10. Textile material according to one of Claims 1 to 8, characterized in that the circuit module (20) is coupled into the antenna in a contactless manner.
11. Textile material according to one of Claims 1 to 15, characterized in that the antenna is in the form of a dipole.
12. Textile material according to Claim 10, characterized in that an electronic chip module and a coupling element are arranged on the contactless circuit module (20), wherein the coupling element couples inductively and/or capacitively into the antenna (12) of the textile material.
13. Textile material according to Claim 12, characterized in that the contactless circuit module (20) is fastened to the textile material by way of a reversibly releasable or irreversibly non-releasable fastening means.
14. Textile material according to Claim 13, characterized in that the fastening means is formed as at least one mandrel which is fitted to the contactless circuit module (20) and penetrates the textile material and a button which accommodates one end of the mandrel and is arranged on the opposite side of the textile material to the contactless circuit module (20).
15. Textile material according to Claim 14, characterized in that the fastening means is formed as welding or bonding or coating or lamination or adhesive bonding or crimping or an adhesive film or by means of a patch connection produced under heat and pressure.
16. Textile material according to Claim 13 or 15, characterized in that the fastening means is formed as a thermal or reaction adhesive.
17. Textile material according to one of Claims 13, 15 and 16, characterized in that the fastening means is formed from discrete connection points or very fine perforated adhesive film.
18. Textile material according to Claim 13, characterized in that the fastening means is formed from weaving yarns which are placed above the contactless circuit module (20) in the region of the contactless circuit module (20) and are woven with the fabric of the textile material outside the contactless circuit module (20) .
19. Textile material according to one of Claims 12 to 18, characterized in that the contactless circuit module (20) is sealed with a coating.
20. Textile material according to Claim 19, characterized in that the coating simultaneously forms an adhesive surface.

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