Magnetic textile filament and the design of a textile article comprising such a filament

Abstract

The present invention relates to a method for manufacturing at least one textile filament for producing a textile article comprising at least one magnetised zone which allows a ferromagnetic element to be joined to the textile article, the method comprising the following steps: providing, in a hopper, a thermoplastic resin comprising a polymer mixture filled with a powder of demagnetised particles, wherein the resin is in the form of granules; extruding the thermoplastic resin by means of an extruder in order to obtain a viscous mass; melt-spinning the viscous mass in order to obtain a wound textile filament, and magnetising the textile filament.

Description

[0001] Description

[0002] MAGNETIC TEXTILE FILAMENT AND THE DESIGN OF A TEXTILE ARTICLE COMPRISING SUCH A FILAMENT

[0003] Technical field

[0004] The present invention relates to the field of textiles.

[0005] The subject of the present invention relates more particularly to a method for manufacturing at least one magnetic textile filament from a recycled or non-recycled neodymium powder and the design of a textile article comprising such a filament. One of the objectives of the present invention is to enable the assembly of a ferromagnetic object and / or a ferromagnetic element with a textile article comprising such a magnetic textile filament or the assembly of two textile articles each comprising such a filament.

[0006] The present invention will find advantageous applications in particular in the field of sport, and more particularly athletics for example by facilitating the attachment of a bib to a T-shirt during a race.

[0007] Obviously, other applications can be considered, for example in the field of fashion, by allowing the personalization of a textile item or by providing a closing or assembly system for any textile piece for clothing.

[0008] Prior art

[0009] In the field of fastening and assembly systems for textile articles, we know buttons, snap fasteners, zippers, the Velcro® system and even safety pins.

[0010] It should be noted here that closing and assembly systems such as buttons, snap fasteners, zippers or Velcro® systems can be difficult to operate for people with disabilities or loss of autonomy such as osteoarthritis.

[0011] For running or athletics, safety pins are the most commonly used to attach a bib to a T-shirt.

[0012] Every athlete or runner has already faced the problems of these pins: forgetting the pins before the race (stress), losing pins, fear of injury, loss of time (on average 1 minute and 30 seconds to fix a bib), lack of pins (it is better to have four), bad positioning of the bib, deterioration of the T-shirt fabric by perforation, etc.

[0013] Finally, the Applicant points out that the pins are not recycled and that the time taken to remove the bib does not encourage people to do so once the finish line has been crossed.

[0014] The Applicant unfortunately submits that there is currently no simple device for assembling and removing, in a single action, an element such as, for example, a bib with a textile item such as, for example, a T-shirt.

[0015] The Applicant further submits that the existing systems are highly noticeable and most often unsightly.

[0016] The Applicant further submits that the personalization solutions are single-use (a sublimated or printed textile).

[0017] A magnetic device is known that is designed to close a blouse, for example. However, such a device is very noticeable; it is sewn directly into the textile item and is not very recyclable.

[0018] Document WO01 / 53575 discloses a magnetic textile part solution.

[0019] Such a textile part according to document WO01 / 53575 is produced using a composite textile yarn formed from a combination of textile fibers and temporarily magnetized fibers.

[0020] In document WO01 / 53575, this textile piece serves as a marker and can be used as a detection element incorporated into a commercial article, in a label, a sticker or even product packaging.

[0021] The Applicant submits that this solution remains complex to implement; it is costly and therefore of little interest from an industrial perspective.

[0022] The Applicant therefore submits here that the solutions of the prior art known up to now are unsatisfactory and the magnetized textile solutions do not allow large-scale deployment. Summary of the invention

[0023] The present invention aims to improve the situation described above.

[0024] The present invention aims more particularly to remedy the various drawbacks mentioned above by proposing a simple solution making it possible to manufacture a magnetic textile filament from a neodymium powder, preferably recycled.

[0025] To this end, the subject of the present invention relates, according to a first aspect, to a method for manufacturing at least one textile filament for producing a textile article comprising at least one magnetizable or magnetized zone ensuring assembly of an object and / or a ferromagnetic element with said textile article. According to the present invention, the method for manufacturing at least one textile filament comprising the following steps:

[0026] - a supply in a hopper of a thermoplastic resin comprising at least one polymer, preferably a mixture of polymers, loaded with a powder of demagnetized particles, said loaded thermoplastic resin being in the form of granules;

[0027] - an extrusion, hereinafter referred to as main extrusion, of said thermoplastic resin loaded by an extruder to obtain a viscous mass;

[0028] - melt spinning of said viscous mass into a monofilament or a multi-filament to obtain a winding of at least one textile filament,

[0029] - optionally, magnetization of said textile monofilament or multifilament.

[0030] A filament can consist of a homogeneous structure or can consist of a core-shell structure.

[0031] A textile yarn may consist of a monofilament or may be multifilament. Other optional features of the installation and / or method for manufacturing at least one textile filament according to the invention follow below, which may be taken alone or in combination.

[0032] - The thermoplastic resin comprises at least one polymer of the PET polyester type or of the PA polyamide type, that is to say that the filled thermoplastic resin comprises at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: PET polyester, PA polyamide. Polyamides are of great interest in particular because of the variety of properties they can exhibit, in particular in terms of viscosity when they are melted. The filled thermoplastic resin is filled with demagnetized particle powder.

[0033] - The demagnetized particle powder comprises neodymium particles and / or iron nitride particles of the type, for example, preferably SmFeN.

[0034] - The demagnetized particle powder comprises at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: polyester PET, polyamide PA, for example in the form of polymer particles.

[0035] - In preferred variants of the demagnetized particle powder, the latter comprises both the demagnetized particles and at least one thermoplastic polymer, the demagnetized particles being coated with said at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: polyester PET, polyamide PA, even more preferably being polyamide PA12. Polyamide PA6 has good toughness, good wear resistance, good impact resistance as well as a relatively high moisture absorption rate, a high melting temperature and a high modulus of elasticity. For its part, polyamide PA12 has good chemical resistance and has the lowest water absorption of all polyamides, as well as a fairly low melting temperature among polyamides and a high modulus of elasticity.Being low in humidity, it is therefore particularly advantageous when used in powder form, and its melting temperature allows easy mixing with other polyamides.

[0036] - Advantageously, the demagnetized particle powder comprises at least 70% by mass of demagnetized particles, preferably at least 90% by mass. Such a proportion guarantees good magnetization capacity of the filament obtained.

[0037] - Advantageously, the demagnetized particle powder is obtained by coating.

[0038] - The powder particles have a diameter between a few nanometers and two millimeters. This allows for easy dispersion and handling.

[0039] - The demagnetized particles of the powder have a diameter between a few nanometers and one hundred microns, preferably between 50 nm and 3 pm;

[0040] - the polymer particles of the powder have a diameter between a few nanometers and a few tens of microns, preferably between 50 nm and 30 μm;

[0041] - the demagnetized particles coated with the powder have a diameter between a few tens of nanometers and a few tens of microns, preferably between 500 nm and 2 mm;

[0042] - Even more preferably, the thermoplastic resin to be loaded with demagnetized particle powder is a polyamide resin chosen from: PA6, PA12, most preferably PA6.

[0043] - Advantageously, the granules of charged thermoplastic resin are obtained during a manufacturing phase of said granules.

[0044] - Advantageously, the loaded granules, i.e. the loaded thermoplastic resin, comprise between 10 and 60% of demagnetized particle powder, preferably between 20 and 50%. The use of a highly concentrated demagnetized particle powder thus makes it possible to obtain loaded granules having an adjustable final content of neodymium particles and / or iron nitride particles, making it possible to modulate the magnetization capacity while retaining the desired mechanical properties for the filament obtained.

[0045] - Advantageously, the filaments with a homogeneous structure, i.e. comprising only charged thermoplastic resin, comprise between 10 and 60% of demagnetized particle powder, preferably between 20 and 50%;

[0046] - Advantageously, the phase of manufacturing the granules can be carried out by any suitable technique or succession of techniques meeting the needs of a person skilled in the art, for example by implementing steps in particular of mixing / crushing or even extrusion / cutting. Preferably, the phase of manufacturing the granules comprises a step of supplying the thermoplastic resin to be charged and the powder of demagnetized particles constituting the charge to an extruder, a step of extrusion, hereinafter referred to as initial extrusion, of the charged thermoplastic resin, optionally a cooling step, optionally a drying step, and a step of constituting the granules preferably by cutting extruded charged threads and / or filaments into granules;

[0047] - The main extrusion step by an extruder of said filled thermoplastic resin may comprise a sub-step of structuring the shell or at least one core of a filament with a core-shell structure. - Advantageously, the structuring sub-step may be carried out by any suitable technique or succession of techniques meeting the needs of a person skilled in the art, for example by implementing a coating step, for example by dipping or spraying, or even an extrusion step. Preferably, the structuring sub-step is an extrusion sub-step, hereinafter referred to as coextrusion, of the shell or at least one core of a filament with a core-shell structure.

[0048] - In the variants of the process where the filament is made of a core-shell structure, the charged thermoplastic resin can constitute either the core or the shell, preferably the shell, which facilitates its magnetization.

[0049] - In the variants of the process where the filament is made up of a core-shell structure, the core / shell ratio is such that the core represents from 30% to 70% of the structure, preferably the core represents 50% of the structure, i.e. the ratio is preferably 50 / 50. The choice of the ratio and the choice of materials influences in particular the mechanical properties of the filament obtained, the speed and the cost of manufacturing. A person skilled in the art knows how to make such choices according to the intended application.

[0050] - Advantageously, in the variants of the process where the filament is made up of a core-shell structure, the core or shell part which is not made up of the thermoplastic resin comprises at least one complementary material suitable according to the needs of the person skilled in the art and suitable for implementing the structuring sub-step.

[0051] - Advantageously, the complementary material can be a metal or alloy or can be a thermoplastic resin loaded or not with demagnetized particles.

[0052] - Advantageously, at least one of the shell or the core is obtained by a coextrusion sub-step, preferably, the core is obtained by a coextrusion sub-step.

[0053] - Advantageously, the complementary material is obtained by a coextrusion sub-step.

[0054] - Preferably the complementary material is a thermoplastic resin comprising at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: polyester PET, polyamide PA.

[0055] - Preferably the loaded thermoplastic resin constitutes the shell and the core comprises at least one complementary material.

[0056] - Preferably the loaded thermoplastic resin constitutes the shell and the core is obtained by a coextrusion sub-step.

[0057] - Most preferably, the filled thermoplastic resin constitutes the shell and the core is obtained by a coextrusion sub-step in which the at least one complementary material is a thermoplastic resin. Even more preferably, the filled thermoplastic resin constitutes the shell and the core is obtained by a coextrusion sub-step in which the at least one complementary material is a polyamide thermoplastic resin, preferably PA6.

[0058] - Advantageously, the filaments with a core-shell structure, i.e. comprising the charged thermoplastic resin and at least one complementary material, comprise between 10 and 60% of demagnetized particle powder, preferably between 20 and 50%

[0059] - The main extrusion step by the extruder is advantageously carried out at a torque of between 25% and 55%, preferably 40%, allowing an optimal mixture to be obtained;

[0060] - The main extrusion step by the extruder is advantageously carried out at a screw speed of between 200 revolutions per minute and 300 revolutions per minute, preferably 250 revolutions per minute, allowing an optimal mixture to be obtained;

[0061] - The main extrusion step by the extruder is advantageously carried out according to a temperature profile evolving above or equal to the melting point of the thermoplastic resin to be loaded and below or equal to the optimal extrusion temperature known for said thermoplastic resin to be loaded, the temperature profile making it possible to avoid unacceptable degradation of the material, preferably in the case of a polyamide PA thermoplastic resin the melting point is 220°C and the optimal extrusion temperature is between 265°C and 275°C depending on the polyamide resin chosen in the family.

[0062] - When the main extrusion step includes a coextrusion sub-step, the temperature profile evolves above or equal to the highest melting point among that of the thermoplastic resin to be loaded and that of the complementary material, and below or equal to the lowest known optimal extrusion temperature between that of said thermoplastic resin to be loaded and that of the complementary material, the temperature profile making it possible to avoid unacceptable degradation of the materials.

[0063] - The magnetization of said textile yarn and / or textile filament is carried out continuously or discontinuously to form said at least one magnetized zone, using an electromagnet having a magnetic field of between 1.5 Tesla and 4 Tesla, preferably 2 Tesla, the magnetization being obtained by applying the field continuously or discontinuously to form said at least one magnetized zone.

[0064] - The charged thermoplastic resin comprises between 10 and 60% of demagnetized particle powder, preferably between 20 and 50%.

[0065] - Spinning is carried out in such a way that the textile yarn and / or textile filament has a diameter of between 50 and 250 pm, preferably 150 pm.

[0066] - Spinning is carried out in such a way that the textile yarn and / or textile filament has a count between 1.3 and 250 dtex.

[0067] - The spinning is carried out by using a die with a diameter of at most 1.5 mm in the case of a round opening, or at most 1.5 mm for its largest dimension in the case of a polygonal opening, for example its length in the case of a die with a rectangular section.

[0068] - A step of shaping the textile yarn and / or the textile filament may be provided during the spinning step, that is to say that the spinning is carried out in such a way that the textile yarn and / or textile filament has a so-called fancy shaping, this term corresponding to the usual definition in the textile field, namely the variation of the spinning process, for example by different yarn tensions or thicknesses, the fancy shaping including for example the effects: curly, flamed, dupion, granite, noppe, wavy.

[0069] - A step of texturizing the textile yarn and / or the textile filament may be provided during the spinning step, comprising at least one sub-step from among: twisting for example in S or Z, assembly, covering. The subject of the invention relates, according to a second aspect, to a textile filament obtained by a method of manufacturing at least one textile filament as described above.

[0070] The subject of the invention also relates to a textile yarn obtained by a method of manufacturing a textile yarn as described above. The subject of the invention relates, according to a third aspect, to a textile article made from at least one textile filament as described above.

[0071] The subject of the invention further relates to a textile article including at least one textile filament as described above.

[0072] The subject of the invention further relates to a textile article made from at least one textile yarn as described above.

[0073] The subject of the invention further relates to a textile article including at least one textile yarn as described above.

[0074] The subject of the invention also relates to a textile article comprising at least one magnetizable or magnetized zone including at least one textile thread and / or at least one textile filament, said magnetized zone ensuring an assembly of an object and / or a ferromagnetic element such as a bib with said textile article.

[0075] The subject of the invention relates, according to a fourth aspect, to a use of a textile article as described above in which the magnetized textile filament is implemented on a front zone of said article to allow assembly of a bib comprising ferromagnetic means or objects, with said textile article at the magnetized front zone.

[0076] The subject of the invention also relates to a use of a textile article as described above in which the magnetized textile thread is implemented on a front zone of said article to allow assembly of a bib comprising ferromagnetic means or objects, with said textile article at the magnetized front zone.

[0077] The subject of the invention relates, according to a fifth aspect, to an installation comprising means configured for implementing the different stages of the method for manufacturing at least one textile filament.

[0078] By the various technical characteristics above, the present invention makes it possible to obtain a textile article including or made from a textile yarn and / or an innovative textile filament capable of defining an assembly zone by magnetization. Description of the attached figures

[0079] Other characteristics and advantages of the present invention will emerge from the detailed description below, with reference to the appended figures 1 to 3 which illustrate an exemplary embodiment thereof without any limiting character and in which: Figures [Fig.1], [Fig.2] and [Fig.3] respectively each represent a schematic view of the installation and the method for manufacturing at least one associated textile filament, and the installation for manufacturing the granules of filled thermoplastic resin, according to an exemplary embodiment of the present invention.

[0080] Detailed description

[0081] In order to produce at least one textile filament 10a, 10b or one textile yarn according to the invention, which will allow the production of a textile article produced from or including said textile filament 10a, 10b or said textile yarn, the installation 100 according to the invention, illustrated in FIG. 1, comprises in particular a hopper 20 for the supply EFT of a thermoplastic resin charged 30 with a powder of demagnetized particles 31, said charged thermoplastic resin 30 being in the form of granules 32.

[0082] The filled thermoplastic resin 30 comprises at least one thermoplastic polymer 300, preferably semi-crystalline, most preferably chosen from the families: PET polyester, PA polyamide, even more preferably a PA6 polyamide resin.

[0083] The installation 100 further comprises on the one hand an extruder 40, allowing the implementation of the main extrusion step EXP, at least of said charged thermoplastic resin 30 to obtain a viscous mass, and on the other hand equipment or set of equipment for the melt spinning 50 of said viscous mass into a mono-filament or a multi-filament to obtain a winding of at least one textile filament 10a, 10b.

[0084] A textile filament 10a, 10b according to the invention may consist of a homogeneous structure 10a or may consist of a core-shell structure 10b.

[0085] Preferably, as illustrated in Figure 1, the textile filament having a homogeneous structure 10a is made of the filled thermoplastic resin 30. Preferably, as illustrated in Figure 1, the textile filament having a core-shell structure 10b comprises a shell made of the filled thermoplastic resin 30 and a core made of a complementary material 35 in the form of an unfilled thermoplastic resin, preferably polyamide PA6, the core 35 being obtained by an EXI coextrusion sub-step.

[0086] An installation 100a for manufacturing granules 30, 32 of filled thermoplastic resin 30 is illustrated in FIG. 3.

[0087] The granules 30, 32 of charged thermoplastic resin 30 are obtained in particular during the manufacturing phase PF of said granules 30, 32 comprising:

[0088] - a step of EFRP supply of the thermoplastic resin to be loaded 300 and the demagnetized particle powder 31 to an extruder 41;

[0089] - the passage of the extruded mass into the extruder 41 to form extruded charged threads and / or filaments during an initial extrusion step E1:

[0090] - optionally an ER cooling step at a cooling means 60; and / or

[0091] - optionally a drying step ES at a drying means 70; and / or

[0092] - a step EC of constituting the granules 30, 32 at the level of a means 80 of constituting said granules 30, 32 by cutting the extruded loaded threads and / or filaments.

[0093] The thermoplastic resin to be loaded 300 with demagnetized particle powder 31 is preferably a polyamide resin chosen from: PA6, PA12, most preferably polyamide PA6.

[0094] The powder of demagnetized particles 31 preferably comprises demagnetized neodymium particles and / or iron nitride particles and at least one thermoplastic polymer, the demagnetized particles being coated with said at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: polyester PET, polyamide PA, even more preferably being polyamide PA12.

[0095] Figure 2 illustrates an embodiment of the entire global manufacturing process according to the invention, including the method of manufacturing granules 32 of filled thermoplastic resin 30, 32 and the method of manufacturing at least one textile filament, the overall process comprising according to this embodiment:

[0096] - a step of supplying into an EFT hopper a thermoplastic resin 30, 32 loaded with a powder of demagnetized particles 31, said loaded thermoplastic resin 30, 32 being in the form of granules 32; - advantageously, the granules 32 are previously obtained during a manufacturing phase PF comprising a step of supplying EFRP the thermoplastic resin to be charged 300 and the powder of demagnetized particles 31 constituting the charge to an extruder 41, an extrusion step, hereinafter called initial extrusion E1, of the charged thermoplastic resin 30, 32, optionally a cooling step ER by a cooling means 60, optionally a drying step ES by a drying means 70, and a step of constituting EC the granules preferably by a constituting means 80 by cutting extruded initial charged threads and / or filaments;

[0097] - an extrusion step, hereinafter referred to as main extrusion EXP, of said charged thermoplastic resin 30, 32 by an extruder 40 to obtain a viscous mass;

[0098] - advantageously, during the main extrusion step EXP and when the filament is made of a core-shell structure 10b, the core or shell part which is not made of the thermoplastic resin 30, 32 comprises at least one complementary material 35 suitable for implementing a structuring sub-step ESTR, preferably the complementary material 35 constitutes the core of the filament with core-shell structure 10b, preferably the structuring sub-step ESTR is a coextrusion sub-step EXI of the at least one complementary material 35 and the complementary material 35 is an unfilled thermoplastic resin. In a particularly preferred variant of the invention, the shell is made of thermoplastic resin 30 polyamide PA6 comprising demagnetized particles 32 of SmFeN which are themselves coated with thermoplastic resin polyamide PA12, while the core is made of thermoplastic resin PA6;

[0099] - a step of melt spinning EFF of said viscous mass into a monofilament or multi-filament to obtain a winding of at least one textile filament 10a, 10b;

[0100] - optionally, during the spinning step EFF, a step of EMF shaping of the textile yarn and / or the textile filament 10a, 10b, allowing for example the obtaining of at least one effect among in particular: curly, flamed, doupion, granite, nub, wavy;

[0101] - optionally, during the spinning step EFF, a step of texturizing ETF of the textile yarn and / or the textile filament 10a, 10b, comprising at least one sub-step among for example: twisting for example in S or Z, assembly, covering;

[0102] - optionally, a step of magnetization MAG of said textile monofilament or multi-filament 10a, 10b during its manufacturing process, for example just before or just after winding.

[0103] Alternatively, the MAG magnetization step can be carried out after the manufacture of the textile article, in particular the magnetizable zone of the textile article can be magnetized prior to its assembly with at least one ferromagnetic object and / or a ferromagnetic element such as a bib. It should be noted that this detailed description relates to a particular exemplary embodiment of the present invention, but that in no case does this description have any limiting character with respect to the subject of the invention; on the contrary, its objective is to remove any possible imprecision or any misinterpretation of the claims which follow.It should also be noted that the reference signs placed in parentheses in the following claims are in no way limiting; these signs have the sole purpose of improving the intelligibility and understanding of the following claims as well as the scope of the protection sought.

Claims

Claims 1. Method for manufacturing at least one textile filament (10a, 10b) for producing a textile article comprising at least one magnetizable or magnetized zone ensuring assembly of a ferromagnetic element with said textile article, said method comprising the following steps: - a supply (EFT) in a hopper of a thermoplastic resin (30, 32) comprising at least one thermoplastic polymer and loaded with a powder of demagnetized particles (31), said loaded thermoplastic resin (30, 32) being in the form of granules (32); - a main extrusion (EXP) of said charged thermoplastic resin (30, 32) by an extruder (40) to obtain a viscous mass; - melt spinning (MES) of said viscous mass into a textile monofilament or a textile multifilament to obtain a winding of at least one textile filament (10a, 10b).

2. Method according to claim 1, in which the filled thermoplastic resin (30, 32) comprises at least one semi-crystalline thermoplastic polymer, most preferably chosen from the families: polyester PET, polyamide PA.

3. Method according to claim 1 or 2, wherein the demagnetized particle powder (31) comprises neodymium particles and / or iron nitride particles of the type for example SmFeN.

4. Method according to any one of the preceding claims, in which the demagnetized particles are coated with at least one thermoplastic polymer, preferably semi-crystalline, most preferably chosen from the families: polyester PET, polyamide PA.

5. Method according to any one of the preceding claims, in which said demagnetized particles of the powder (31) have a diameter of between a few nanometers and one hundred microns.

6. Method according to any one of the preceding claims, in which the textile filament (10b) has a core-shell structure 10b comprising a shell made of the filled thermoplastic resin (30) and a core made of a complementary material (35) in the form of an unfilled thermoplastic resin, preferably polyamide PA6, and in wherein the main extrusion step (EXP) comprises a coextrusion sub-step (EXI) of said core (35).

7. Method according to any one of the preceding claims, further comprising a step of magnetizing (MAG) said textile monofilament or multifilament (10a, 10b), carried out using an electromagnet having a magnetic field of between 1.5 Tesla and 4 Tesla, the magnetization (MAG) being obtained by applying the field continuously or discontinuously.

8. Method according to any one of the preceding claims, in which the filled thermoplastic resin (30, 32) comprises between 10 and 60% of demagnetized particle powder, preferably between 20 and 50%.

9. Method according to any one of the preceding claims, in which the spinning (EFF) is carried out in such a way that the textile filament (10a, 10b) has a count of between 1.3 and 250 dtex.

10. Installation (100) comprising means configured for implementing the different steps of the method according to any one of claims 1 to 9.

11. textile element (10a, 10b) obtained by a manufacturing method according to any one of claims 1 to 9.

12. Textile yarn comprising at least one textile filament (10a, 10b) obtained by a manufacturing method according to any one of claims 1 to 9.

13. Textile article including at least one textile filament (10a, 10b) according to claim 11.

14. Textile article comprising at least one magnetized zone including at least one textile filament (10a, 10b) according to claim 11.

15. Use of a textile article according to claim 11 or 12 in which the at least one magnetized textile filament is implemented on a front zone of said article to allow assembly of a bib comprising at least one ferromagnetic object, such as at least one or more ferromagnetic means, with said textile article at the magnetized front zone.

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