FABRIC

Abstract

The invention relates to a fabric. The fabric (10) comprises, in the fabric material, threads (11a1,12a1;13a1,14a1) of a material conducting electricity well, by means of which electro-magnetic radiation and magnetic fields are filtered. The threads (11a1,12a1;13a1,14a1) are placed next to each other. Furthermore, the threads are wound around their winding axes (X1,X2;Y1,Y2) so that the first thread (11a1, 13a1) in the fabric is wound clockwise, and the second thread (12a1, 14a1) next to it is wound counterclockwise.

Claims

1-14. (canceled)

15. A fabric comprising, in the fabric material, threads of a material conducting electricity well, by means of which electromagnetic radiation and magnetic fields are filtered, wherein the threads are placed next to each other and wound around their winding axis so that in the fabric the first thread is wound clockwise around a first winding axis thereby forming a first winding and the second thread next to it is wound counterclockwise around a second winding axis thereby forming a second winding, whereby the first winding and second winding put out magnetic field and the first winding axis is at a distance from the second winding axis, and the threads comprise a material that conducts electricity well.

16. A fabric as claimed in claim 15, wherein the winding axes of the first thread and the second thread are parallel and at a distance from each other, which is 0.5 mm to 50 mm.

17. A fabric (150) as claimed in claim 15, wherein the first thread is passed in a wavelike manner and it is passed as a closed loop or open loop and the second thread next to it is also passed in a wavelike manner as a closed or open loop so that adjacent threads are oppositely wound, one wound clockwise in relation to its winding axis, and the other counterclockwise in relation to its winding axis.

18. A fabric as claimed in claim 15, wherein the fabric comprises, in connection with or near the vertical threads, threads which run horizontally, and the threads in question form a grid.

19. A fabric as claimed in claim 18, wherein third and fourth threads are also placed next to each other so that the third threads are wound clockwise and the fourth threads are wound counterclockwise, and it that next to the thread wound clockwise there is the thread wound counterclockwise.

20. A fabric as claimed in claim 19, wherein the distance between horizontal winding axes is 0.5 mm to 50 mm.

21. A fabric as claimed in claim 18, wherein the grid formed by the threads is located on the surface of the fabric or in the middle of it.

22. A fabric as claimed in claim 18, wherein the vertical threads are located on one surface of the fabric and in that the horizontally running threads are located on the other surface of the fabric.

23. A fabric as claimed in claim 15, wherein the fabric comprises a grounding wire connected to the electrically conducting thread.

24. A fabric as claimed in claim 15, wherein the electrically conducting thread comprises copper, silver, or graphite, or another material conducting electricity.

25. A fabric as claimed in claim 15, wherein the fabric is a texture, knitted fabric, bed-sheet, piece of clothing, or wallpaper made of threads.

26. A fabric as claimed in claim 15, wherein the electrically conducting thread consists of at least one strand of a material conducting electricity well and of at least one support strand which is not of a material conducting electricity well, and in that in the same thread, the strand of a conductive material and the support strand are wound in the same winding direction in the same thread.

27. A fabric as claimed in claim 26, wherein the cross sectional form of the electrically conductive strand is advantageously round.

28. A fabric as claimed in claim 15, wherein the thread consists of at least one strand of a material conducting electricity well.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0023] FIG. 1A illustrates a top view of the fabric according to the invention.

[0024] FIG. 1B shows the solution of FIG. 1A, with the exception that each thread comprises a grounding wire.

[0025] FIG. 2A shows a preferred embodiment of how the electrically conductive threads are passed in a loop-like fashion in the fabric structure.

[0026] FIG. 2B shows a solution according to FIG. 2A, with the exception that the thread passes are not closed.

[0027] FIG. 2C shows the solution of FIG. 2B, also comprising grounding of the loops.

[0028] FIG. 3 shows the placing of threads in the Y direction transversely in relation to the X direction, the treads defining rectangular or square areas.

[0029] FIG. 4 illustrates the placing of threads in the Y direction on one side of the fabric, whereas threads in the X direction are on the other side of the fabric.

[0030] In FIG. 5, the threads in the X direction and Y direction cross each other.

[0031] FIG. 6 shows how the electrically conductive strands are supported by non-conductive support strands wound in the same direction.

DETAILED DESCRIPTION OF THE INVENTION

[0032] FIG. 1A is a schematic representation of a fabric 10 according to the invention. It may also be a knitted product or weft.

[0033] The fabric comprises adjacent and parallel electrically conductive threads 11a1, 12a1; 11a2,12a2; 11a3,12a3; . . . .

[0034] The threads 11a1 and 12a1 are wound into windings in opposite direction S1 and S2. The winding direction S1 of the thread 11a1 around its winding axis X1 is clockwise, and the winding direction S2 of the thread 12a1 around its winding axis X2 is counterclockwise.

[0035] The fabric, knitted product, or similar, needs to be at a short distance from a person's skin. The fabric may be a piece of clothing, such as a sportswear, a bed-sheet, or a nightgown. The magnetic field produced by a person's muscular tension dies out at the windings of the threads. Likewise, the field of electromagnetic radiation from the outside and magnetic fields of magnets die out. The magnetic fields generate an electric current in the threads, the currents further generating flows of electric currents in opposite direction in adjacent threads, and further electromagnetic fields that further put each other out. According to the invention, the fabric 10 is formed of threads 11a1,12a1; 11a2,11a2; . . . wound into windings and by weaving or knitting from beam threads 14 or similar, and advantageously by machine weaving/machine knitting automatically. In the winding, with the number of winding turns of the electrically conductive strand c1 per a unit of length, the effectiveness of the filtering is adjusted. As shown in FIG. 1A, the threads extend on the area of the entire fabric, running as per FIG. 1A from the bottom to the top, from the lower edge of the fabric to its top edge. Each thread begins at the bottom edge of the fabric and ends at the top edge. The winding axis X1 and X2 are at a distance D1 from each other. The axes X1 and X2 are parallel and advantageously straight.

[0036] In this application, fabric 10 is also understood to refer to a knitted fabric, such as a machine knitted piece of clothing, such as a blouse, bed-sheet etc. Wallpaper, too, is possible.

[0037] The solution of FIG. 1B otherwise corresponds with the solution of FIG. 1A, but each thread 11a1,12a1,11a2,12a2,11a2,12a3 . . . comprises a grounding wire 15a1,15a2, . . . . Grounding provides a major improvement in filtering the fields but is not a must.

[0038] FIG. 2A is an embodiment of the invention where the thread 11a1 has been passed in a loop-like, wavelike fashion, and likewise the thread 12a1 has been passed in a loop-like and wavelike fashion. They have been passed as open loops so that the threads have been placed in relation to each other so that next to the thread 11a1 there is always the thread 12a1, in other words, next to the thread 11a1 wound clockwise, there is always the thread 12a1 wound counterclockwise.

[0039] FIG. 2B show the solution of FIG. 2A, except that the electrically conductive threads 11a1, 12a1 are closed loops.

[0040] In FIG. 2C, the threads and closed loops 11a1 and 12a1 of the embodiment of FIG. 2B are grounded by wires, or in general by electrically conductive threads 15a1, 15a2.

[0041] FIG. 3 shows an embodiment of the invention, where there are, in addition to the vertical threads 11a1, 12a1, also horizontal threads 13a1, 14a1 which have been placed and wound following the same principle as the threads 11a1, 12a1 of FIG. 1A.

[0042] The threads 13a1, 14a1 are so wound that the threads 13a1 are wound around their horizontal winding axis Y1 clockwise, and the threads 14a1 are wound around their winding axis Y2 counterclockwise. The axes Y1 and Y2 are horizontal straight axes parallel in relation to each other. The distance between them is D1. Therefore, by winding, the threads 13a1, 14a1 are formed into windings. The magnetic fields they generate put each other out and affect radiation turned by 90 degrees. This way, electromagnetic radiations on different planes are effectively put out by the solution. In this solution, too, the threads 13a1, 14a1 of a material conducting electricity well are so arranged in relation to each other that a thread wound clockwise is next to a thread wound counterclockwise.

[0043] FIG. 4 illustrates the solution of FIG. 3. The threads 11a1,12a1;13a1,14a1 are located on the surface of the fabric, and on the side T1 contact each other at the crossing points in the embodiment. The network is attached to the fabric. It is part of the beam thread and weft structure of the fabric. The network forms a grid G1, G2, G3 . . . .

[0044] In FIG. 5, the thread 13a1, 14a1 are located on the fabric structure side T2 and the structure formed by the threads 11a1, 12a1 on the other side T1 of the fabric structure. Together they form a network structure when the plane fabric is examined in the direction of the normal of its plane E.

[0045] FIG. 6 shows a solution where the thread 11a1 is formed so that it comprises at least one strand c1 wound from a material conducting electricity well and support strands b1, b2 wound in the same winding direction, and which are not of a material conducting electricity. The purpose of the support strands b1, b2 is to support the thread structure. The support strands b1, b2 may also keep the temperature under control, that is, they may be thermally limiting fibres. The support strands may be polyester fibres, for example. There may be a plurality of channels in the structure of the support strands.

[0046] The strands c1, b1, b2 are mutually wound in the same direction, clockwise in the embodiment of the figure.

[0047] The structure is similar at the strand 12a1. It, too, comprises the strand c1 of a material conducting electricity well and support strands b1, b2 that are not of a material conducting electricity. They are mutually wound in the same direction, counterclockwise in the embodiment of FIG. 6. Adjacent threads 11a1, 12a1 have mutually different winding directions. One thread 11a1 is wound clockwise and the other thread 12a1 anticlockwise.

[0048] The thread 11a1,12a1,13a1,14a1 may in an embodiment be formed of just one strands c1 of a material conducting electricity well, in which embodiment there are no support strands.

[0049] The cross section of the strands c1 conducting electricity and the supports strands b1, b2 of the threads is advantageously round. The cross section is perpendicular along the longitudinal and centre axis of the strand. The cross sectional dimension of the threads 11a1,12a1,13a1,14a1 is less than 3 mm and advantageously less than 1 mm.

[0050] Other cross sectional forms are also possible. A person skilled in the art will find it obvious that, as technology advances, the basic idea of the invention may be implemented in many different ways. The invention and its embodiments are thus not restricted to the examples described above but may vary within the scope of the claims.