Jacquard woven label with 2D code

Abstract

The invention relates to a jacquard woven label (1) comprising a two-dimensional code, referred to as 2D code, encoding an identifier, characterized in that: the density of the warp threads of the label (1) is between 38 threads and 70 threads per centimeter; -the warp yarns of the label (1) have a fineness of between 50 dtex and 110 dtex; -the density of the weft yarns of the label (l) is between 65 yarns and 125 yarns per centimeter; the weft yarn of the label (1) has a fineness of between 20 dtex and 65 dtex.

Description

Technical Field

[0001] The present invention relates to the technical field of jacquard weaving, and more particularly to the field of jacquard weaving labels (such as for garments) or textile accessories (such as bracelets). Background Art

[0002] Jacquard-woven labels with two-dimensional codes, such as QR codes, are known in the art.

[0003] This type of woven QR code can be used on clothing to provide information to the user. It can be used for traceability (logistics or anti-counterfeiting). For example, it can also be suitable for making identification bracelets for entering campsites or festivals.

[0004] JP 3132067 describes such woven labels. However, the given range for selecting yarns and label weave structures is neither precise enough nor suitable for producing jacquard-woven labels in a reliable and repeatable manner. For example, one difficulty in weaving labels with QR codes is that the fabric is flexible, and deformation of the QR code can affect its readability. Furthermore, the interweaving of the yarns during weaving can distort the code, also affecting its readability.

[0005] Document WO 2013 / 001380 also describes a jacquard-woven label with a QR code. The teaching of this document has the same disadvantages.

[0006] Furthermore, document JP 2009161884 describes a jacquard-woven label including a QR code. In this document, the range proposed is also not precise enough to achieve a satisfactory compromise between the various constraints encountered. This document cites a more precise example of a label, but its performance in terms of code readability, reliability, and weaving repeatability is suboptimal.

[0007] Furthermore, a 2D code represents the number of data (square modules or pixels) in relation to the amount of information encoded. If a code encoded by a 2D code is too large (in terms of data volume) because it contains too many characters, then the 2D code will include many pixels.

[0008] When weaving a pattern for this 2D code, one must choose between: - enabling good readability of the 2D code by imposing a minimum size on the pixels and, therefore, on the woven 2D code; and - The maximum size that is desired to be given to the 2D code, especially as the label width rarely exceeds 4 or 5 cm.

[0009] The smaller the woven 2D code, the more regularly the yarns that define the pixels must be interwoven to form them. Excessive interweaving points can distort the fabric (and, therefore, the 2D code), compromising readability. If the information density is too high, the excessive number of interweaving points can even cause congestion on the loom.

[0010] Therefore, there are difficulties in weaving 2D codes in a reliable and repeatable manner.

[0011] It is also known to weave jacquard labels with variable data. That is, for a label manufacturing batch: - they share fixed data, such as brand logos; and - They have variable data specific to one or more tags, such as a garment size or serial number.

[0012] Variable data can be unique (serialized) or repeating (e.g., several labels with the same garment size). A variable label manufacturing batch can include at least 50 different combinations of fixed and variable data, or at least 100, 500, or even 1,000 different combinations. In certain traceability applications, where variable data is unique, a manufacturing batch can include at least 10,000 or even 100,000 different combinations because each label is unique.

[0013] When it is desired to manufacture labels with variable data, one difficulty lies in the weaving pattern of the label to be woven: from an industrial point of view, it is impossible to perform this weaving pattern manually, since the operation time would be multiplied by the amount of variable data. Automatic weaving pattern software is used.

[0014] Automatic weaving patterns have the advantage of speeding up the weaving of large numbers of label patterns, but have the disadvantage of not being as qualitative and optimized as manual weaving patterns. As an example, automatic weaving patterns can result in insufficient or, conversely, excessive weft interlacing. This leads to defects during weaving (loose yarn loops, deformation of the woven pattern). These defects can make the woven 2D code unreadable. However, the difficulty of reading is not uniform and depends on the reading and weaving of each item of variable data: there is a risk that, although most labels are readable, a large part of the label will be unreadable.

[0015] Therefore, in the case of jacquard weaving a 2D code with variable data, the difficulty of weaving the 2D code is exacerbated, and even more so if the code is unique.

[0016] In the case of traceability applications, all delivered labels must be readable. Furthermore, the operation of traceability solutions based on woven labels must be guaranteed for at least the entire lifecycle of the relevant product: for accessories such as handbags, this can be around ten years.

[0017] Not to mention that the operation of the proposed traceability solution must be guaranteed at least for the entire lifecycle of the traceability application itself (thus, from the release date of the first traced item until the end of the lifecycle of the last traced item placed on the market). This period can therefore be around 15 or even 20 years.

[0018] Therefore, the weaving of woven labels with 2D codes must be stable and reproducible over a long period of time, even in the case of automatic reading; this is not possible with prior art solutions. Summary of the Invention

[0019] The present invention aims to overcome the problems of the prior art by proposing a label that is compatible with the jacquard weaving of two-dimensional codes ("2D codes") and preferably with variable data in a reliable and repeatable manner.

[0020] For this purpose, a jacquard-woven label was developed that includes a QR code encoding the identifier.

[0021] According to the first embodiment of the present invention: - the density of the warp yarns of the label is comprised between 38 and 70 yarns per centimeter; The warp yarns of the label have a fineness comprised between 50 dtex (dtex) and 110 dtex; - the density of the weft yarns of the label is comprised between 65 and 125 yarns per centimeter; The weft yarn of the label has a fineness comprised between 20 dtex and 65 dtex.

[0022] According to the second embodiment of the present invention: - the density of the warp yarns of the label is comprised between 75 and 140 yarns per centimeter; - the warp yarns of the label have a fineness comprised between 40 dtex and 72 dtex; - the density of the weft yarns of the label is comprised between 64 and 96 yarns per centimeter; The weft yarn of the label has a fineness comprised between 20 dtex and 100 dtex.

[0023] This wide range of choices for yarn density and warp and weft yarn fineness makes it possible to obtain: - a label with sufficient density to make it sufficiently rigid (and prevent the QR code from deforming, which would destroy its readability); - Labels with sufficient clarity and resolution to make the code readable. -While ensuring the reliability and repeatability of weaving.

[0024] In particular, thinner yarns are used for the warp and weft, making it possible to have softer yarns and reduce weaving deformation at the QR code level (where there are particularly many interweaving points).

[0025] In order to ensure that the information density of the code is not too high, the code comprises an alphanumeric string comprising 30 to 45 characters, for example 35 characters. In one embodiment, the identifier is a unique identifier. This embodiment makes it possible to obtain a label suitable for traceability or even authentication applications.

[0026] Advantageously, the unique identifier comprises an alphanumeric string, preferably consisting of 9 to 12 characters. This number of characters is sufficient to obtain a large number of unique identifiers (more than 28x10 11 identifiers) is more than enough.

[0027] In one embodiment, the alphanumeric string includes both numbers and letters, preferably selected from a predetermined list. The mixture of alphabetic and numeric characters in the identifier means that an average amount of data to be encoded is obtained. In fact, numbers require fewer bytes to encode than some alphabetic characters. Systematically mixing numbers and letters can avoid: - a code consisting only of numbers (corresponding to very few bytes, and therefore easy to encode, as well as a QR code that is easy to weave); and - encodings consisting only of letters (corresponding to more bytes, and therefore less easy to encode, as well as less easy to weave QR codes).

[0028] Preferably, the characters are selected from a predetermined list, which makes it possible to avoid the easiest characters to encode (little data) and the most difficult characters to encode (more data).

[0029] In order to be compatible with the widest range of labels on the garment market, the 2D code has a size comprised between 9 mm and 25 mm, or between 15 mm and 20 mm, or between 10 mm and 12 mm.

[0030] Advantageously, the weft yarns comprise a ground yarn and a stitching yarn. The floats of the stitching yarn on the back of the label are interwoven at the same level as the floats of the weft yarn on the front of the label, following a rhythm that is equal to or a divider of the weft weaving rhythm, thereby increasing the rigidity of the label. Consequently, the 2D code is less distorted and easier to read.

[0031] 2D codes optimized according to the aforementioned features can produce a batch of labels with variable data, such as variations in product size or color. Preferably, the identifier of each label is unique, which can implement traceability applications for individual items.

[0032] The present invention also relates to a method for manufacturing a batch of labels, comprising the following steps: - obtaining a first list of identifiers defining the manufacturing batch; - Producing a weaving pattern for the batch of labels to be woven; - Woven labels; - Cutting off the woven labels by an automatic cutting machine; -Packaging of cut labels. This method makes it possible to obtain a woven label with a variable 2D code (obtained from the first list), with the advantages previously mentioned.

[0033] Advantageously, the identifier is unique and, between the cutting step and the packaging step, the method comprises a step of automatically and individually checking the unique identifier, thereby verifying the readability of the unique identifier of each of the labels; - If found to be compliant, automatically transfer the label for packaging; or - If the inspection fails, the label is discarded and the label is not packaged. In this way, any manufacturing defects that may have occurred and that affect the readability of the label will be detected and only readable labels will be delivered to the customer. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] [ Figure 1 ] are photos of labels, one of which corresponds to the present invention.

[0035] [ Figure 2 ] is an illustration of a jacquard weaving pattern.

[0036] [ Figure 3 ] is a diagram of a QR code encoding the first identifier and the first identifier.

[0037] [ Figure 4 ] is a QR code encoding the second identifier and a diagram of the second identifier.

[0038] [ Figure 5 ] is a diagram of a QR code encoding the third identifier and the third identifier.

[0039] [ Figure 6 ] is a diagram of a QR code encoding the fourth identifier and the fourth identifier.

[0040] [ Figure 7 ] shows a schematic diagram of the interweaving points of a brocade weave of a label according to the present invention.

[0041] [ Figure 8 ] is a schematic diagram showing the additional interweaving points of this thick fabric weave.

[0042] [ Figure 9 ] is a schematic diagram showing other additional interweaving points of the thick fabric weave. DETAILED DESCRIPTION

[0043] Reference Figure 1 The present invention mainly relates to a jacquard woven label (1) with a QR code (2). In the rest of this article, reference will be made to the QR code (2), but it is not limited thereto.

[0044] Woven labels (1) are mainly used in the clothing, garment, textile and apparel markets. In this sector, the size of the labels (1) rarely exceeds 8 cm per side. Most commonly, the width of the labels (1) is between 10 mm and 50 mm, and their visible length is between 4 cm and 8 cm.

[0045] Therefore, QR codes (2) used in the aforementioned markets typically have a width between 9 mm and 25 mm, or between 10 mm and 20 mm, or even between 10 mm and 15 mm for smaller sized labels (1).

[0046] In a particular embodiment, the width of the QR code (2) is between 12 mm and 16 mm, excluding any possible silent zones near the QR code (2), making it easier to read by devices such as smartphones. This value represents a satisfactory compromise between the readability of the QR code (2), the amount of information it can encode, and the width of the most common labels (1). This size therefore constitutes a standard suitable for the relevant market.

[0047] When a label (1) of this type has a QR code (2), the size of the code is therefore limited by the size of the label. On the other hand, the content of the QR code (2) depends on the encoded information.

[0048] In this case, the more information the QR code (2) must encode, the more square modules (or pixels) it must include. Therefore, for a QR code (2) with an imposed size, the greater the amount of information to be encoded, the smaller the pixel size of the QR code (2).

[0049] Therefore, there may be an incompatibility between the necessary resolution of the QR code (2) (based on its maximum size and the amount of information to be encoded) and the resolution of the jacquard weave (defined by the fineness of the yarn used and the weave structure): - Using a yarn that is too large means that the resolution required to weave the code (2) cannot be obtained. - Using a weave that is too loose can produce a flexible fabric on which the QR code (2) can deform and therefore be less readable. - Weaving of pixels that are too small results in too many interweaving points that are too dense, allowing the fabric to deform during weaving, which complicates the readability of the code. Or, in fact, it may be impossible to weave the label due to congestion on the loom (1).

[0050] The present invention mainly lies in the matching between the fineness of the yarn and the weaving structure of the label.

[0051] In a first embodiment: - the density of the warp yarns of the label (1) is comprised between 38 and 70 yarns per centimeter; - the warp yarns of the label (1) have a fineness comprised between 55 dtex and 105 dtex; - the density of the weft yarns of the tag (1) is comprised between 65 and 120 yarns per centimeter; - The weft yarns of the label (1) have a fineness comprised between 20 dtex and 65 dtex. In particular, the weft yarns may comprise ground yarns and stitching yarns with different finenesses, selected from: - a first yarn having a fineness comprised between 20 dtex and 40 dtex; and - a second yarn having a fineness comprised between 35 dtex and 65 dtex.

[0052] In the second embodiment: - the density of the warp yarns of the label (1) is comprised between 75 and 140 yarns per centimeter; - the warp yarns of the label (1) have a fineness comprised between 40 dtex and 72 dtex; - the density of the weft yarns of the tag (1) is comprised between 64 and 96 yarns per centimeter; - The weft yarns of the label (1) have a fineness comprised between 20 dtex and 100 dtex. In particular, the weft yarns may comprise ground yarns and stitching yarns with different finenesses, selected from: - a first yarn having a fineness comprised between 20 dtex and 40 dtex; and - a second yarn having a fineness comprised between 35 dtex and 65 dtex; and - a third yarn having a fineness comprised between 55 dtex and 100 dtex.

[0053] The choice of one embodiment or the other is mainly based on the desired warp density range, which requires a particular construction of the loom (size and arrangement of the jacquard mechanism, position of the wire bundles, tooth density of the reeds, preparation of the crossbeams).

[0054] The choice of a range of warp yarn densities means that a weaving structure with greater or lesser tightness can be obtained. The other parameters (warp and weft yarn fineness, weft yarn density) are then selected.

[0055] This choice of weave structure and fineness provides a fabric that is rigid enough to ensure readability of the code, with a resolution suitable for QR code weaving.

[0056] Advantageously, the first embodiment is implemented according to the following preferred options: - the density of the warp yarns of the tag (1) is comprised between 45 and 65 yarns per centimeter, or between 50 and 60 yarns per centimeter, or between 52 and 57 yarns per centimeter, for example equal to 54 yarns per centimeter; - the warp yarns of the tag (1) have a fineness comprised between 65 dtex and 95 dtex, or between 72 dtex and 88 dtex, or between 76 dtex and 84 dtex, equal to, for example, 80 dtex; - the density of the weft yarns of the tag (1) is comprised between 75 and 110 yarns per centimeter, or between 83 and 100 yarns per centimeter, or between 87 and 97 yarns per centimeter, for example equal to 92 yarns per centimeter; - the weft yarns of the label (1) have a fineness comprised between 25 dtex and 60 dtex, or between 27 dtex and 55 dtex, or between 29 dtex and 53 dtex, for example equal to 50 dtex. In particular, the weft yarns may comprise ground yarns and stitching yarns of different fineness, selected from: - a first yarn having a fineness comprised between 24 dtex and 36 dtex, or between 27 Between 29 and 32 pts. and, for example, equal to 30 deciliters; and - a second yarn having a fineness comprised between 40 dtex and 60 dtex, or between 45 Between dtex and 55 dtex, or between 48 dtex and 53 dtex, and for example equal to 50 dtex.

[0057] Advantageously, the second embodiment is implemented according to the following preferred options: - the density of the warp yarns of the tag (1) is comprised between 86 and 130 yarns per centimeter, or between 97 and 120 yarns per centimeter, or between 103 and 113 yarns per centimeter, for example equal to 108 yarns per centimeter; - the warp yarns of the tag (1) have a fineness comprised between 44 dtex and 66 dtex, or between 50 dtex and 60 dtex, or between 52 dtex and 58 dtex, for example equal to 55 dtex; - the density of the weft yarns of the tag (1) is comprised between 64 and 96 yarns per centimeter, or between 72 and 88 yarns per centimeter, or between 76 and 84 yarns per centimeter, for example equal to 80 yarns per centimeter; - the weft yarns of the label (1) have a fineness comprised between 24 dtex and 90 dtex, or between 27 dtex and 84 dtex, or between 29 dtex and 80 dtex, for example equal to 50 dtex. In particular, the weft yarns may comprise ground yarns and stitching yarns of different fineness, selected from: - a first yarn having a fineness comprised between 24 dtex and 36 dtex, or between 27 Between 29 and 32 pts. and, for example, equal to 30 deciliters; and - a second yarn having a fineness comprised between 40 dtex and 60 dtex, or between 45 dtex and 55 dtex, or between 48 dtex and 53 dtex, and for example equal to 50 dtex; and optionally a third yarn having a fineness comprised between 60 dtex and 90 dtex, or between 68 dtex and 84 dtex, or between 72 dtex and 80 dtex, and for example equal to 76 dtex.

[0058] In a particular embodiment, the tag (1) has variable data. This means that not all tags in the same manufacturing batch have the same code. This is used in several cases: - to serialize the tag (1) with a unique code (2) so that it can be used in traceability or authentication applications; - Traceability of manufacturing batches, where several tags (1) have the same code (2) corresponding to a family of goods, for example the same clothing model (model, color, size).

[0059] An example of a variable data label manufacturing batch is shown below.

[0060] Table 1 shows the principle of a manufacturing batch, where each tag (1) has a unique identifier (here the identifier consists of eight alphanumeric characters).

[0061] [Table 1]

[0062] Table 2 shows the principle of manufacturing a batch, wherein each tag (1) has an Internet address ("URL", which stands for "Uniform Resource Locator" in English). In particular, each URL is unique.

[0063] [Table 2] Increment URL 1 https: / / sklbl.fr / BMPRPQBY 2 https: / / sklbl.fr / 4AT3ZYZM 3 https: / / sklbl.fr / JD7PFAQ7 4 https: / / sklbl.fr / YEQDN7F3 5 https: / / sklbl.fr / NBDEE39B 6 https: / / sklbl.fr / 5RZBCP5B 7 https: / / sklbl.fr / 1PFQE6E6 8 https: / / sklbl.fr / Z51W0Z0A 9 https: / / sklbl.fr / YDU73UUG 10 https: / / sklbl.fr / 543FND1D

[0064] Table 3 shows the principle of a manufacturing batch, where 13 garment tags (1) have to be manufactured, several tags (1) possibly having the same identifier.

[0065] [Table 3]

[0066] In each case, the identifier and URL are encoded by the QR code.

[0067] From an industrial perspective, it is impossible to manually pattern each of these variable data labels individually, even with dedicated software. In the case of variable data, the weave patterning of the fixed data (i.e. the bottom of the label) and any brand logo is performed manually. In contrast, the variable data of the label (1) is processed by automatic weave patterning software.

[0068] Figure 2 An extract of a weaving pattern is shown. It shows the interweaving points of the warp and weft yarns that make up the label. The higher the density of the warp and / or weft yarns, the more interweaving points there are. The same applies to the resolution of the QR code (2): as explained above, the greater the amount of information to be encoded, the higher the resolution.

[0069] When a batch of tags (1) with variable data is put into production, there is a risk that some of the variable data may correspond to an excessive amount of data, which may make it impossible to manufacture or read the tags (1). Because the weaving pattern is automatic, these tags (1) will not be detected.

[0070] In order to overcome this disadvantage, the identifier encoded by the QR code (2) comprises a limited number of characters. In a preferred embodiment, the identifier is encoded on eight alphanumeric characters. This number of characters provides billions of possibilities, which is more than enough in the technical field in question. However, this limited number of characters ensures that the resolution of the QR code (2) does not exceed a resolution acceptable from a weaving point of view.

[0071] Different alphanumeric characters are not encoded with the same amount of data; it depends on their encoding format: As an example, in the “ASCII” encoding table (which is the English abbreviation for “American Standard Code for Information Interchange”), one character is encoded on 1 byte; - In the "UTF-8" encoding table (which is the English abbreviation of "Universal Character Set Transformation Format-8 bytes"), one character can be encoded on 4 bytes.

[0072] So, the character A is encoded on a single byte in ASCII; whereas it is encoded on 4 bytes in UTF-8.

[0073] In order to limit the amount of data required to encode the code, it only includes characters from the ASCII table. The ASCII table includes fewer characters than other tables, but the number of available characters is sufficient to obtain, for example, trillions of unique identifiers with 8 characters.

[0074] The woven label generally presents the identifier in alphanumeric form, thereby overcoming the difficulty of reading a QR code (2), or allowing it to be read only by eye.

[0075] To prevent misreading or reading errors, avoid characters that are too close in visual proximity. For example, the number 0 and the letter O, or the number 1 and the letter L, can easily be confused.

[0076] ] Therefore, preferably, the alphanumeric characters are selected from a reduced list consisting of the following characters: A, B, C, D, G, H, J, N, P, S, T, W, Z, A, B, D, e, f, H, k, m, r, T, x, y, 2, 3, 4, 5, 7, 8, 9.

[0077] Therefore, selecting characters from a predetermined list enables: - the amount of data required to encode a code is limited because characters can be encoded according to encoding standards with fewer characters; - Avoiding misreading or difficulty in reading when a user attempts to read an alphanumeric woven identifier.

[0078] Despite the more limited number of available characters, this list can generate over 100 billion unique 8-character identifiers.

[0079] In one embodiment, the QR code (2) encodes an alphanumeric string comprising a unique identifier according to the aforementioned characteristics. As an example, it can be a URL.

[0080] Even if the alphanumeric string is long, it is still possible to control the density of the QR codes (2) within a manufacturing batch, since the variability in the amount of information to be encoded is controlled in the same way as explained above.

[0081] Advantageously, the encoded URL can be a shortened URL (fewer characters, and therefore less data to be encoded), pointing to a URL redirect, which is longer (more characters, and therefore more data to be encoded).

[0082] Reference Figure 3 and Figure 4 , two QR codes (2) are shown, each encoding an eight-character alphanumeric code. It should be noted that the amount of data required to encode the two identifiers is close enough that the QR codes (2) have the same resolution. In this case, they include 21 pixels on each side.

[0083] Reference Figure 5 and Figure 6 , showing two identifiers in URL format, each consisting of eight characters. It should be noted that because the amount of encoded information is greater than Figure 3 and Figure 4 The resolution of the QR code (2) is also increased: each of these QR codes (2) now includes 25 pixels on each side. In the case of a QR code (2) with a fixed size (e.g. 12 mm), Figure 5 and Figure 6 The QR code (2) has a pixel ratio of Figure 3 and Figure 4 The pixels of the QR code (2) are smaller.

[0084] However, Figure 5 and Figure 6 The two URLs encoded in include similar amounts of information, so that the two QR codes (2) have the same resolution.

[0085] Figure 7 Shown is a jacquard weave with two weft yarns: a ground yarn (F) and a stitching yarn (B): - The ground yarn (F) is woven according to a 3-thread twill type weave: it passes through three warp yarns (C1, C2, C3), then under a warp yarn (C4), then again through three warp yarns (C5, C6, C7) and so on. - The stitching yarn (B) is not visible in this layer of the label (1) and is therefore on the back side (V) of the label.

[0086] In theory, the stitching yarns (B) could be allowed to float across the entire width of the label (1), but the floating yarns would form long yarn loops that would interfere with the manufacture of the label. In practice, the stitching yarns (B) on the back (V) are therefore interwoven regularly, for example approximately every 10 to 20 warp yarns.

[0087] In order not to affect the base yarn, the stitching yarn (B) is interwoven according to a pattern that is a multiple, equal to or a divider of the pattern of the base yarn (F). In the case of a 3-thread twill (a pattern of 4 warp yarns), the stitching yarn (B): - interwoven onto the warp yarns (C2); then - pass through 7 warp yarns (C3-C9); then - interwoven onto the warp yarn (C10), and so on.

[0088] Therefore, the regularity of the stitching yarn (B) is 8 warp yarns, which is a multiple of the regularity of the ground yarn (4 yarns).

[0089] Reference Figure 8 , it may be necessary to increase the rigidity of the label (1), but without deviating from the aforementioned yarn density and yarn fineness ranges. To achieve this, the weaving pattern can be modified to increase the number of thread interlacing points.

[0090] In order that these additional interweaving points do not alter the appearance of the label (1) from the front side (R), the interweaving points are added only at the level of the floats of the stitching yarns (B) on the front side (R).

[0091] In the given example, the regularity of the stitching yarn (B) is now 4: - it is interwoven with the yarn (C2), - through three yarns (C3-C5), - interwoven with yarn (C6), and so on.

[0092] The stitching yarn (B) has a regularity of 4 threads, which is equal to the regularity of the ground yarn (F): when viewed from the front (R), the interlacing points of the stitching yarn (B) are hidden by the floating yarns of the ground yarn (F), and the appearance of the label (1) is maintained. However, the number of interlacing points is doubled, and the rigidity of the label (1) is also doubled.

[0093] If it is necessary to further increase the rigidity of the label (1), the interlacing points of the stitching yarns (B) can be made according to a rule that is a divisor of the rule of the ground yarns (F).

[0094] Reference Figure 9, the regularity of the stitching yarn (B) is now 2 lines. The rigidity of the label (1) is further increased.

[0095] The given example illustrates an interweaving point at the level of the floats of the ground yarn (F), but it can be any weft yarn: ground yarn (F) or stitching yarn (B).

[0096] It should be noted that by implementing the aforementioned features, batches of labels (1) having QR codes (2) encoding unique identifiers can be woven in a reliable and repeatable manner, thanks to the ability to encode such a large number of identifiers (billions of possibilities) while ensuring that the amount of information to be encoded is controlled (limited differences in the amount of data, guaranteeing the stability of the QR code resolution).

[0097] The present invention also relates to a method for jacquard weaving a label with a 2D code. The method comprises the following steps: - obtaining a first list of identifiers defining the manufacturing batch; - weaving patterns for the batch of labels (1) to be woven; - woven label (1); - cutting the woven label (1) by an automatic cutting machine; -Packaging the cut labels (1).

[0098] The aforementioned technical features of the label (1) ensure the reliability of weaving, and the method can obtain batches of jacquard woven labels (1) with QR codes (2) even if the weaving data is variable.

[0099] In particular, the method is suitable for weaving a single two-dimensional code (2). In order to improve the reliability of the method, a step of automatically and individually checking the unique identifier can be added between the cutting step and the packaging step to verify the readability of the unique identifier of each label in the label; - If compliance is detected, automatically transfer the label (1) for packaging; or - If the inspection fails to meet the requirements, the label (1) is discarded and the label (1) is not packaged.

[0100] In this way, a batch of labels (1) can be delivered, guaranteeing the readability of all labels.

[0101] Furthermore, the tag (1) and the method may have configurations different from the examples given without departing from the scope of the invention as defined by the claims.

[0102] Specifically, the two-dimensional code may have a configuration different from the QR code (2) and may be of any type suitable for the present application.

[0103] Furthermore, the technical features of the various embodiments and variations described above may be combined in whole or in part. Thus, the tag (1) and the method may be adjusted in terms of cost, functional features, and performance.

Claims

1. A jacquard woven label (1) comprising a two-dimensional code, also known as a 2D code, encoding an identifier, characterized in that: The warp yarn density of the tag (1) is comprised between 38 and 70 yarns per centimeter; The warp yarns of the label (1) have a fineness comprised between 50 dtex and 110 dtex; The density of the weft yarns of the label (1) is comprised between 65 and 125 yarns per centimeter; The weft yarns of the label (1) have a fineness comprised between 20 dtex and 65 dtex.

2. A jacquard woven label (1) comprising a two-dimensional code, also known as a 2D code, encoding an identifier, characterized in that: The warp yarns of the tag (1) have a density comprised between 75 and 140 yarns per centimeter; The warp yarns of the label (1) have a fineness comprised between 40 dtex and 72 dtex; The density of the weft yarns of the tag (1) is comprised between 64 and 96 yarns per centimeter; The weft yarns of the label (1) have a fineness comprised between 20 dtex and 100 dtex.

3. The label according to claim 1 or 2, characterized in that: The code comprises an alphanumeric string comprising 30 to 45 characters, for example 35 characters.

4. The label (1) according to any one of the preceding claims, characterized in that The identifier is a unique identifier.

5. The label (1) according to any one of the preceding claims, characterized in that The identifier comprises an alphanumeric string, preferably, the alphanumeric string consists of 8 characters.

6. The label (1) according to claim 5, characterized in that The alphanumeric string comprises both numbers and letters, preferably, the numbers and letters are selected from a predetermined list.

7. The label (1) according to any one of the preceding claims, characterized in that The 2D code has a size comprised between 9 mm and 25 mm, or between 15 mm and 20 mm, or between 10 mm and 12 mm.

8. The label (1) according to any one of the preceding claims, characterized in that The weft yarn includes a base yarn and a stitching yarn, and the floating yarns of the stitching yarn (B) located on the back of the label (1) are interwoven in a regular pattern at the level of the floating yarns of the weft yarn located on the front of the label (1), and the regular pattern is equal to or a divisor of the weaving regular pattern of the weft yarn, so as to increase the rigidity of the label (1).

9. A batch of labels (1) according to any one of claims 1 to 3 or claims 5 to 8, characterized in that The label (1) has variable data among the labels (1) of the batch, preferably the identifier of each label (1) is unique.

10. A method for producing a batch of labels (1) according to any one of claims 1 to 8, characterized in that The method comprises the following steps: - obtaining a first list of identifiers defining the manufacturing batch; - producing a weaving pattern for said batch of labels (1) to be woven; - weaving the label (1); - cutting the woven label (1) by an automatic cutting machine; - Packaging the cut labels (1).

11. The method according to claim 10, characterized in that The identifier is unique, and between the cutting step and the packaging step, the method comprises a step of automatically and individually checking the unique identifier, thereby verifying the readability of the unique identifier of each of the labels (1); and - if compliance is checked, automatically transferring said label (1) for packaging; or - If the inspection fails to meet the requirements, the label (1) is discarded, thereby not packaging the label (1).

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