Knitted pile fabric, in particular for use as female component of a contact fastener for fixation of a car seat cover

Abstract

A knitted loop device, particularly for forming the female part of a hook and loop fastener for securing a car seat cover. A knitted device, particularly a knit, comprising a first zone, particularly rectangular, from which loops protrude, and at least a second contiguous zone, particularly rectangular, preferably two contiguous zones on either side of the first zone, the second contiguous selvedge zone(s) not comprising loops and intended to allow the knitted device to be attached to a cover intended to cover a molded object, particularly a car seat, for example by sewing, while the first looped zone is intended to cooperate with hooks protruding from the molded object, characterized in that means are provided to prevent or combat fraying of the yarns of the knitted device forming the second selvedge zone(s).

Description

[0001] The present invention relates to a knitted device, in particular a knitted mesh, with gripping loops, comprising a first zone, in particular a central zone, comprising loops intended to cooperate with associated hooks of a hook element and at least one second selvedge zone, in particular two second selvedge zones on either side of the first central loop zone, contiguous to the first loop zone and not comprising loops. The present invention also relates to a cover intended to cover a foam object produced by molding, for example a car seat, the cover comprising on its face intended to be in contact with the molded object a knitted loop device of the type mentioned above, the knitted loop device being fixed, in particular sewn, to the cover, in particular at the level of the at least one second selvedge zone.The present invention also relates to a molded object, for example an automobile seat, covered with a cover of this type.

[0002] Conventionally, to make a car seat, a foam is first molded into the shape of the seat to be obtained and during molding, hooks are overmolded so that they protrude from the bottom of cavities or trenches formed on the outer surface of the molded object to allow a cover to be fixed around the object by means of loops coming from the cover.

[0003] These loops are produced by means of a knitted loop device generally comprising a central zone, from which knitted loops protrude, and two selvedge zones, left and right, from which no knitted loops protrude and at the level of which the knitted loop device is fixed, in particular by sewing, to the cap to allow the latter to be fixed to the molded object by means of hooks overmolded to the molded object.

[0004] This type of molded object covered with a cover, in particular a car seat, is known for example from document FR 3 003 578 A1, in which a knitted fabric is described.

[0005] These car seats covered with a cover, particularly in the form of a textile or leather sheet, must have an appearance that is as clean and precise as possible. To achieve this, the cover must perfectly match the contour of the molded object that it covers. However, in use, it is found that the covers are either poorly fixed to the molded objects and in particular do not perfectly match the shape of the molded object, namely the car seat, that they are intended to cover, or, little by little over time, no longer perfectly match the shape of the seat.

[0006] We would like to overcome the above disadvantages and obtain a car seat covered with a cover attached to the latter by means of a self-gripping hook and loop system, the cover of which perfectly fits the contour of the molded object, even in the long term.

[0007] From EP0589395A1, a knitted fabric is known comprising a first zone 1a, from which loops 4a formed by yarns R1 protrude, and a second contiguous zone 2a of the first zone, the second contiguous selvedge zone(s) not comprising loops, the knitted fabric comprising a ground consisting of an interlacing of columns of stitches 3a (yarns R2) and threads R3 and R4 connecting in the weft direction and, in the first zone of the loop yarns knitted in the ground, each loop consisting of two feet knitted in the ground, two strands starting from the two feet and a connecting apex of the two strands, the weft yarns of the ground extending in the MD direction with a back and forth movement in the CD direction so as to take in a zigzag pattern alternately a single row of columns of stitches, then another single row of columns of stitches and so on along the MD direction.

[0008] According to the invention, a knitted device, in particular a knitted mesh, is as defined in claim 1, and a method of manufacturing the knitted device is as defined in claim 13, improvements and favorable embodiments being defined in the other claims.

[0009] The knitted device may comprise a first zone, in particular rectangular, from which loops protrude and at least one second zone, in particular rectangular, contiguous, preferably two contiguous zones on either side of the first zone, the second contiguous selvedge zone(s) not comprising loops and being intended to allow the fixing of the knitted device to a cover intended to cover a molded object, in particular a car seat, for example by sewing, while the first zone with loops is intended to cooperate with hooks protruding from the molded object, the knitted fabric comprising a base consisting of an interlacing of warp threads, or columns of stitches, and weft threads and, in the first zone of the loop threads knitted in the base, each loop consisting of two feet knitted in the base, two strands starting from the two feet and a top connecting the two strands,is characterized in that means are provided for preventing or combating the fraying of the threads of the knitted device forming the second selvedge zone(s).,

[0010] In particular, the means for preventing or combating fraying of the threads are arranged over the entire width of the second selvedge zone(s).

[0011] By providing means to combat the fraying of the threads forming the selvedges, it is ensured, particularly in the long term, that the caps are perfectly fixed to the molded object, without slipping due to deterioration over time of the selvedges due to the stresses they may undergo between, on the one hand, the fixing, in particular by sewing, and on the other hand the fixing of the hooks to the loops, as well as due to the tension undergone by the cap in use. A gripping loop is understood to mean a loop which projects from the plane formed by the bottom of the knitted fabric and / or a loop extending in a plane different from that of the bottom of the knitted fabric.

[0012] According to an advantageous embodiment, and in particular presenting great robustness, the means for combating scuffing consist of covering the edge zone(s) with a coating, for example a resin or a glue, which, after hardening, gives the edges great dimensional stability and thus prevents them from scuffing.

[0013] According to another equally advantageous embodiment, and in particular allowing a simplification of the manufacturing process of the final covered seat, and therefore a reduction in the costs associated with manufacturing, the knitted device is a knitted fabric comprising a base consisting of an interlacing of warp threads, or columns of stitches, and weft threads and, in the first central zone of the loop threads knitted in the base, each loop being made up of two feet knitted in the base, two strands starting from the two feet and a connecting apex of the two strands, the weft threads of the base extending in a back and forth movement in a transverse direction so as to zigzag in the machine direction around a number N of rows of columns of stitches between 2 and 5, in particular 3 rows, and this over the entire transverse extent of the base, with the exception of a number N - 1 of successive end rows of columns of stitches,in particular of a number of N-1 last rows.,

[0014] The distance in CD between two consecutive weft threads is between 75% and 125% of the distance in CD between two consecutive warp threads.

[0015] The weft threads of the background extending in a back and forth zigzag movement, two contiguous weft threads of the background are substantially parallel, more particularly the zigzag shape of the two contiguous weft threads of the background is such that a tip of the zigzag shape of a first weft thread and a tip of the zigzag shape of a second weft thread form a segment extending substantially parallel to the direction CD.

[0016] The weft threads of the background extending in a back and forth zigzag movement, the distance in MD between two contiguous ends in MD of the same weft thread is between 0.5 mm and 5 mm, in particular between 0.8 mm and 3 mm, more particularly of the order of 1.8 mm.

[0017] The weft threads of the background extending in a back and forth zigzag movement, the distance in CD between two contiguous ends in CD of the same weft thread is between 0.6 mm and 25 mm, in particular between 2 mm and 10 mm.

[0018] For N equal to 2, the weft threads of the background extending in a back and forth zigzag movement, the distance in CD between two contiguous ends in CD of the same weft thread can be between 0.6 mm and 10 mm, in particular between 2 mm and 4 mm, more particularly of the order of 3 mm.

[0019] For N equal to 3, the weft threads of the background extending in a back and forth zigzag movement, the distance in CD between two contiguous ends in CD of the same weft thread can be between 1 mm and 15 mm, in particular between 3 mm and 6 mm, more particularly of the order of 4.5 mm (i.e. 1 / 5 of an inch).

[0020] For N equal to 4, the weft threads of the background extending in a back and forth zigzag movement, the distance in CD between two contiguous ends in CD of the same weft thread can be between 1.33 mm and 20 mm, in particular between 4 mm and 8 mm, more particularly of the order of 6 mm.

[0021] For N equal to 5, the weft threads of the background extending in a back and forth zigzag movement, the distance in CD between two contiguous ends in CD of the same weft thread can be between 1.67 mm and 25 mm, in particular between 5 mm and 10 mm, more particularly of the order of 7.5 mm.

[0022] Preferably, the segment connecting the two feet of a loop extends in the MD direction and in the CD direction, thus forming an angle with respect to the MD direction preferably between 10° and 80°, in particular in certain cases between 30° and 75°. In certain cases, the inclination is alternated from one loop to the other in the CD direction, that is to say that the angle is alternating positive and negative.

[0023] Preferably, each loop consists of two feet knitted in the bottom and each foot belongs to different contiguous columns, the zigzag shape is obtained after N rows of columns of stitch or weft, without float, that is to say without skipping a row of stitch.

[0024] By providing weft threads that run in a zigzag pattern, for example over 3 rows of stitch columns and across the entire width, it is ensured that the selvedge areas do not fray. At the same time, compared to the first advantageous embodiment, fraying is also effectively combated at a lower cost, particularly by avoiding the use of less expensive coating material, such as resin or hardening glue, and by simplified manufacturing with fewer steps.

[0025] Preferably, the anti-fraying means are implemented so that, when the curve giving the force necessary to deform the knitted fabric in the transverse direction (CD) is plotted as a function of the deformation between the origin of coordinates (0, 0) and the breaking point R (recognizable by a sudden drop in the curve, for example a sudden variation in the force greater than 10%, in particular greater than 15%), the curve is always below the straight line connecting the origin and the point R.

[0026] According to a preferred embodiment, the value of the force at 25% of the deformation is less than 150N, preferably less than 125N, even more preferably less than 100N, in particular less than 50N, or even 35N.

[0027] According to a preferred embodiment, the value of the force at 50% of the deformation is less than 350N, preferably less than 335N, even more preferably less than 300N, in particular less than 225N, or even 190N.

[0028] According to a preferred embodiment, the knit comprises a first central looped zone and two second contiguous selvedge zones, left and right.

[0029] Preferably, knitting is carried out on a three-bar loom, in particular a loom with three yarn distribution bars and a sinker bar.

[0030] Preferably, the knitting is carried out on a three-bar warp loom, in particular a loom with three yarn distribution bars, and a sinker bar.

[0031] Preferably, the knitting is carried out on a three-bar warp loom, one bar of which is a guide bar and two other bars being tube bars.

[0032] Preferably, the knitting is carried out on a warp loom, more particularly a crochet loom (for example a crochet loom marketed by the company COMEZ and / or Jakob Müller AG Frick under the reference Comez 610 ACO, more precisely Comez 610 ACO - 15).

[0033] According to an embodiment which is advantageous in itself, the loop weave is a 10 / 12 / / closed mesh loop weave.

[0034] According to another embodiment which is also advantageous in itself, the loop weave is an open loop weave, namely a 01 / 21 / / weave.

[0035] The present invention also relates to a molded object, for example a car seat, comprising a block of molded material, in particular foam, having the shape of the object, in particular the car seat, and a cover covering the block, the fixing of the cover to the block being carried out by the cooperation between hooks, in particular a plurality of fields of hooks originating from the outer surface of the molded object, and knitted devices or looped knits according to the invention fixed, in particular sewn to the cover, in particular to the lower face of the cover.

[0036] The materials of the weft, loop and warp yarns may be the same or different from each other, for example, by choosing from Polyethylene Terephthalate (PET), Polypropylene (PP), Aramid, Polyamide (PA), Polyethylene (PE) or similar materials, as well as mixtures thereof. Ilcan also be elastic or elastomeric and / or heat-sealing materials. The yarns can be flat, textured, covered and / or twisted. The weft, loop and warp yarns can be identical or of different natures in single-component, bi-component or more materials.

[0037] By way of example, a preferred embodiment of the invention will now be described with reference to the drawings, in which: there figure 1 is a schematic perspective view of a molded object, in which the cap covering it is shown at a distance from the molded object; figure 2 represents a theoretical knitting weave of all the yarns to be used in the device of the figure 1 , in particular the knitting sewn to the headdress of the figure 1 ; there figure 3 represents the theoretical knitting weave of the warp or chain threads of the knitting of the figure 2 ; there figure 4 represents the theoretical knitting weave alone of the weft threads of the knitting of the figure 2 ; there figure 5 represents the theoretical armour of single loops of the knitting of the figure 2 ; there figure 6 represents a second embodiment of the loop weave; the figure 7 represents a third embodiment of the loop weave; the figure 8 represents a theoretical knitting weave according to an embodiment using the weft weaves of the figure 4 , of mesh columns of the figure 3 and loops of the figure 7 ; there figure 9 represents a knit according to yet another embodiment of the invention; the figure 10 represents the curve giving the force necessary to deform a knitted fabric according to the invention, namely a knitted fabric comprising the weft threads of the figure 4 , the chain threads of the figure 3 and the so-called open / closed loop wires of the figure 7 , depending on the deformation, in particular between the origin point (0, 0) and the breaking point R, and the figure 11 represents the curve giving the force necessary to deform a knitted fabric according to the invention, namely a knitted fabric comprising the weft threads of the figure 4 , the chain threads of the figure 3 and the loop threads of the figure 5 or of the figure 6 , depending on the deformation, in particular between the origin point (0, 0) and the breaking point R.

[0038] To the figure 1 , there is shown a molded object in the form of a car seat comprising a block 1 made of foam, in particular polyurethane, having the shape of the car seat and which comprises a plurality of trenches 2 at the bottom of which has been fixed, in particular by prior insertion during molding, a strip 3 with hooks 14 to be rectangular overmolded. The molded object, namely the car seat, is covered with a cover 4, which perfectly matches the outer surface of the block 1. To do this, the cover 4 is sewn to a knitted device 5, which comprises a central zone 6, from which knitted loops 9 protrude, and two selvedge zones 7 and 8, which are each sewn to the lower face of the cover 4. When the loops cooperate with the hooks, the cover 4 is fixed around the molded block 1, perfectly matching its shape. The molded object is thus obtained covered with its final cover, for example a car seat.

[0039] THE figures 2 à 5 illustrate the weave of a boucle knit on a warp loom, which consists of working with three guide and tube bars. A first guide bar is used to form chains or columns of stitches, 10 in cooperation with each row (vertical in the figures) of needles. The second tube bar is used to form weft links 11 in cooperation with the chain-forming needles 10. A third tube bar is used to form on a sinker bar in the central part of the knit (rows 7 to 19) stitches 12 (the feet of the loops) on all the needles. The loop yarn thus forms the tops 13 of loops.

[0040] The frame links ( figure 4 ) are represented by a non-meshed (weaved) system10. As for the chains, or columns of stitches, they can be open or alternated.

[0041] Each weft thread, as shown in the figure 4 , extends in a 00 / 33 / / weave. Thus, each weft thread extends in a zigzag in the machine direction (vertical in the figures) passing around three needles of three successive rows in the transverse direction (from left to right in the figure 4 ). In addition, all rows of needles are thus bypassed / blocked / taken in a zigzag by the weft threads, with the exception of the last two columns (24 and 25) which are bypassed / blocked / taken in a zigzag by the weft threads every other time, and over the entire background of the knitted fabric (rows 1 to 23). Thus, the number of weft threads is equal to the number of rows of stitch columns minus two. The weft threads are offset by one column. In the case where the zigzag is made not around 3 rows, but two rows, then the number of weft threads is equal to the number of rows of stitch columns minus one. Generally speaking, for a zigzag of the weft threads made around N needles (N between 2 and 5), the number of weft threads is equal to the number of rows of stitch columns minus N plus 1. The zigzag extends in the MD direction and is formed on each row of stitches.

[0042] The figures show 25 columns of needles. A different number of columns of needles can also be provided depending on the final width of the desired product. figure 2 , the work of the bar of the columns of mesh is represented. This is a classic work, which is not described further here. At the figure 4 , the weft weave is represented. Each weft thread extends in a zigzag pattern around three needles, each zigzag weft thread extends directly after the previous weft thread. There are therefore as many weft threads as there are columns of stitches or columns of needles, fewer except for the last two, which are once out of two bypassed / blocked / caught in a zigzag pattern by the weft threads.

[0043] The buckle armor shown in the figure 5 is a 10 / 12 / / closed mesh loop weave.

[0044] According to another embodiment shown in the figure 6 , the loop weave is an open loop weave, namely a 01 / 21 / / weave.

[0045] According to yet another possible embodiment for the loop weave, we make a so-called open / closed loop weave, namely a 10 / 01 / 21 / 12 / / weave.

[0046] According to the invention, it is arranged so that all the weft threads extend in a zigzag pattern around three needles and by making sure that the weft threads extend in succession directly after each other, without being separated by a column of stitches or chains having no weft.

[0047] Furthermore, preferably, the knitting is carried out with only three yarn bars. However, it is also possible to knit with a fourth yarn distribution bar to produce a weft in the opposite direction, for example a weft identical to that of the figure 4 , or on the contrary a weave with fewer wefts, for example such that one chain out of two has no weft, or even two chains out of three or three chains out of four. But, preferably, the knitting is done with only three bars.

[0048] Furthermore, instead of making a zigzag around three needles, one could make the zigzag around two needles and, preferably, between two and five needles. Preferably, 25 columns of needles are planned, and in particular 25 warp threads for a knitting width of 40 mm.

[0049] To the figure 9 , another embodiment of the invention is shown. The 5' looped knit has a central zone 6' and two selvedge zones 7' and 8'. The 5' knit consists of a ground made up of an interlacing of weft threads and column stitch threads and, in the central part, loop threads knitted to form loops. The ground may be as described above or, on the contrary, be different, namely, for example, weft threads which extend in a zigzag pattern across the entire width of the ground (as shown in figure 9 ) or on a number of rows greater than 5. It is also possible to provide weft threads which do not extend in succession over the entire width of the knitted fabric, for example by leaving every second or third row without weft thread. On the other hand, to then combat the fraying likely to appear due to this weft structure, it is provided according to the invention to coat the selvedge zones with a resin or a hardening glue which will thus protect the knitted fabric from fraying when it is subjected to the constraints relating to the action of the hooks on the loop zone on the one hand and the constraints of the user.

[0050] In particular, it is possible to use a resin allowing mechanical anchoring, for example of the HMA (Hot Melt Adhesive) glue type with high viscosity, for example based on SBC (Styrene Block Copolymer in English or Styrene block copolymer), based on polyolefin (PO), based on Polyurethane (PU) and / or a chemical anchoring. As an alternative embodiment of the figure 9 , as an alternative or in addition to the resin layers 15 and 16 in which the selvedges are taken, a thermal step could be carried out, for example hot calendering and / or ultrasonic welding in the selvedge areas to reinforce them and combat the fraying likely to appear due to this weft structure.

[0051] In the embodiments of the figures 1 à 8 , the anti-friction means are constituted by the defined structure of the bottom frames. At the figure 9 , these anti-fraying means are constituted by the coating and in particular the layers of resins 15 and 16 in which the selvedges are taken. Thus, one can choose between these two methods, knowing that the coating is more expensive and more complex to carry out. One can also, if one wishes, combine them, by coating the selvedges of the knits of the figures 1 à 8 to achieve an even better anti-friction effect.

[0052] To figures 10 And 11, the curve is shown giving the force necessary to deform knits in the transverse direction (CD) according to the invention as a function of the deformation. This curve is conventionally obtained using a dynamometer, in particular by applying the method described in Standard NF EN1415, using the test of elongation at break in the CD direction, which consists of placing a sample of the knit between two jaws (inter-jaw distance equal to 20mm) of a dynamometer (traction speed of 100mm / min).

[0053] As seen in the figures 10 And 11 , between the origin of coordinates (0, 0) and the breaking point R (recognizable by a sudden drop in the curve, for example a drop in the force value greater than 10%, in particular greater than 15%), the curve is always below the straight line connecting the origin and point R.

[0054] According to the invention, the value of the force at 25% of the deformation is less than 150N, preferably less than 125N, even more preferably less than 100N, in particular less than 50N, or even 35N.

[0055] According to the invention, the value of the force at 50% of the deformation is less than 350N, preferably less than 335N, even more preferably less than 300N, in particular less than 225N, or even 190N.

[0056] In an alternative embodiment of the embodiment of the figure 2 , we could use for example loops according to the figure 6 ou 7 .

[0057] In an alternative embodiment of the embodiment of the figure 9 , we could use for example a coating according to the figure 9 and / or carry out a thermal step in the selvedges, for example hot calendering and / or ultrasonic welding to further combat fraying.

[0058] In an alternative embodiment of the embodiments of the figures 2 à 8 , we could use for example loops according to the figure 5 ou 6 .

Claims

1. Knitted device, comprising a knitted fabric comprising a first zone (6), in particular rectangular, from which loops (9) protrude and at least one second zone, in particular rectangular, contiguous, preferably two contiguous zones (7, 8) on either side of the first zone, the second contiguous selvedge zone(s) not comprising loops and being intended to allow the fixing of the knitted device to a cap intended to cover a molded object, in particular a car seat, for example by sewing, while the first zone with loops is intended to cooperate with hooks protruding from the molded object, the knitted fabric comprising a base consisting of an interlacing of chain threads, or columns of stitches, and connecting threads in the weft direction and, in the first zone of the loop threads knitted into the base, each loop consisting of two feet knitted into the base,of two strands starting from the two feet and a vertex connecting the two strands, , characterized in that means are provided for preventing or combating the fraying of the threads of the knitted device forming the selvedge zone(s), in which the weft direction connecting threads of the background extend in a direction MD following a back and forth movement in a transverse direction CD so as to bypass, block and / or take in a zigzag in the machine direction a number N of rows of columns of stitches between 2 and 5, in particular 3 rows.

2. Device according to claim 1, characterized in thatthe connecting threads in the weft direction of the background extend in a direction MD following a back and forth movement in a transverse direction CD so as to bypass, block and / or take in a zigzag in the machine direction a number N of rows of columns of stitches between 2 and 5, in particular 3 rows, and this over the entire transverse extent of the background of the second zone(s), with the exception of a number N - 1 of successive end rows of columns of stitches, in particular a number of N-1 last rows.

3. Device according to claim 1 or 2, characterized in that the knit is knitted using a plurality of needles, in the form of columns of needles extending in the MD direction and rows of needles extending in the CD direction, each ground weft yarn going around, blocking and / or zigzagging the N rows of columns of stitches by going around, blocking and / or zigzagging N needles of the same row of needles.

4. Device according to claim 3, characterized in that each weft thread bypassing, blocking and / or zigzagging the N rows of column stitches passes alternately on the one hand between said same row of needles and the row of needles directly preceding said same row and on the other hand between said same row and the row of needles directly following said same row of needles.

5. Device according to one of claims 1 to 4, characterized in that each weft thread extends in a 00 / NN / / weave, N being between 2 and 5.

6. Knitted device according to claim 5, characterized in that N is equal to 3.

7. Knitted device according to one of claims 1 to 6, characterized in thatthe anti-fraying means are implemented so that, when the curve giving the force necessary to deform the knitted fabric in the transverse direction (CD) is plotted as a function of the deformation between the origin of coordinates (0, 0) and the breaking point R (recognizable by a sudden drop in the curve), the curve is always below the straight line connecting the origin and the point R.

8. Knitted device according to claim 7, characterized in that the value of the force at 25% of the deformation is less than 150N, preferably less than 125N, even more preferably less than 100N, in particular less than 50N, or even 35N.

9. Knitted device according to one of the preceding claims, characterized in that it has a first central looped area and two second contiguous selvedge areas, left and right.

10. Knitted device according to one of the preceding claims, characterized in thatthe loop weave is a 10 / 12 / / closed mesh loop weave.

11. Knitted device according to one of claims 1 to 9, characterized in that the loop weave is an open loop weave, namely a 01 / 21 / / weave.

12. Molded object, for example a car seat, comprising a block of molded material, in particular foam, having the shape of the object, in particular the car seat, and a cover covering the block, the fixing of the cover to the block being effected by the cooperation between hooks, in particular a plurality of fields of hooks originating from the outer surface of the molded object, and knitted devices according to one of the preceding claims fixed, in particular sewn to the cover, in particular to the lower face of the cover.

13. A method of manufacturing a knitted device comprising a knitted fabric comprising a first zone (6), in particular rectangular, from which loops (9) protrude and at least one second zone, in particular rectangular, contiguous, preferably two contiguous zones (7, 8) on either side of the first zone, the second contiguous selvedge zone(s) not comprising loops and being intended to allow the knitted device to be fixed to a cover intended to cover a molded object, in particular a car seat, for example by sewing, while the first zone with loops is intended to cooperate with hooks protruding from the molded object, comprising the steps in which: - a base is knitted by means of a plurality of needles, in the form of columns of needles extending in a direction MD and rows of needles extending in a direction CD, so as to obtain an interlacing of chain threads, or columns of stitches,and connecting threads in the weft direction and, in the first zone of the loop threads knitted in the ground, each loop consisting of two feet knitted in the ground, two strands starting from the two feet and a connecting top of the two strands; - each weft thread of the ground being knitted so as to extend in the direction MD following a back and forth movement in the transverse direction CD so as to go around, block and / or take in zigzag a number N of needles of the same row of needles between 2 and 5, in particular 3 rows, each weft thread going around, blocking and / or taking in zigzag the N needles of the same row by passing on the one hand between said same row and the row of needles directly preceding said same row and on the other hand between said same row and the row of needles directly following said same row., 14. Method according to claim 13, characterized in thateach weft thread is knitted in a 00 / NN / / weave, N being between 2 and 5.

15. Method according to claim 14, characterized in that N is equal to 3.

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