Singla Casasayas, Juan (C. Del Dr. Tiffon 2, Martorelles, E-08100, ES)
| 1. | Antivandal fabric (1), comprising an upper layer (2) and a lower layer (3), the upper layer (2) comprising natural or artificial fibre yarns and the lower layer (3) comprising metallic yarns (3a, 3b) , characterised in that said metallic yarns (3a, 3b) of the lower layer (3) are knitted with the yarns of the upper layer (2) . |
| 2. | Antivandal fabric (1) according to claim 1, characterised in that the lower layer (3) also comprises natural or artificial fibre yarns knitted with said metallic yarns (3a, 3b) . |
| 3. | Antivandal fabric (1) according to claim 2, characterised in that the percentage of metallic yarns (3a, 3b) with respect to the total yarns in the lower layer (3) is from 10% to 80%. |
| 4. | Antivandal fabric (1) according to claim 1, characterised in that said metallic yarns (3a, 3b) are of stainless steel, carbon steel or cupper. |
| 5. | Antivandal fabric (1) according to claim 1 or 4, characterised in that the diameter of each metallic yarn (3a, 3b) is from 0.05 mm to 0.35 mm. |
| 6. | Antivandal fabric (1) according to claim 1, characterised in that said metallic yarns (3a, 3b) are knitted with the yarns of the upper layer (2) by shed, double shed, jacquard, double jacquard or flat knitting. |
| 7. | Antivandal fabric (1) according to claim 1, characterised in that the metallic yarns of the lower layer are knitted in weft (3a) and in warp (3b) . |
| 8. | Antivandal fabric (1) according to claim 1, 4 or 5, characterised in that said metallic yarns (3a, 3b) are covered. |
| 9. | Antivandal fabric (1) according to claim 8, characterised in that said metallic yarns (3a, 3b) are covered by cotton or wool yarns. |
The present invention refers to an anti-vandal fabric, which can be used to upholster seats for public or private transport vehicles, for public locals or any- suitable use.
BACKGROUND OF THE INVENTION
Now are known several kinds of anti-vandal fabrics, whose main feature is its great cutting resistance .
These anti-vandal fabrics can be used in seats for public or private transport vehicles, in public locals, such as, e.g. cinemas and theatres, or in household items, such as, e.g. canopies.
One of such anti-vandal fabrics comprises an upper layer which is adhered to a lower layer formed by metallic yarns. This kind of fabric shows the drawback that it is very rigid, its subsequent handling being very complicated, e.g. to upholster a seat. This is because metallic yarns are used with a diameter from 0.5 to 0.6 mm. In some cases, these metallic yarns can be substituted by yarns of a very hard plastic material. However, the use of this plastic material does not solve neither the rigidity problem of the fabric nor the vandal resistance .
Another drawback which show the anti-vandal fabrics is that its manufacture is expensive, because they must be manufactured separately the lower and upper layer, and subsequently they must be joined together.
DESCRIPTION OF THE INVENTION
With the fabric of the invention said drawbacks are solved, and it presents other advantages that will be described.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of what has been described, some drawings are appended in which, diagrammatically and only as a non-limitative example, a practical case of embodiment is shown.
Fig. 1 is a diagrammatical perspective view of the fabric of the present invention, the upper layer being partially removed; and
Fig. 2 is a diagrammatical plan view of the metallic yarns forming the lower layer.
DESCRIPTION OF A PREFERRED EMBODIMENT
As can be seen from Fig. 1, the anti-vandal fabric of the present invention, identified generally by the reference numeral 1, comprises two layers, an upper layer 2 and a lower layer 3 knitted to each other. The upper layer 2 is conventional and it is formed by natural o artificial fibre yarns, and the lower layer 3 comprises metallic yarns 3a, 3b and natural or artificial fibre yarns (not shown in Fig. 2) .
It must be stated that said layers are knitted to each other, i.e. the metallic yarns 3a, 3b are also knitted with the yarns of the upper layer 2.
The metallic yarns are knitted in weft 3a and warp 3b, as can be seen in Fig. 2.
The percentage of metallic yarns 3a, 3b with respect to the total yarns in the lower layer 3 is from 10% to 80%, depending on the features to obtain.
Said metallic yarns 3a, 3b can be of stainless steel, carbon steel or cupper, even though preferably will be of stainless steel.
The diameter of each metallic yarn 3a, 3b is from 0.05 mm and 0.35 mm, i.e. they are of a lower diameter than usual metallic yarns used in known anti-vandal fabrics, which it is usually from 0.5-0.6 mm.
Said metallic yarns 3a, 3b are knitted with the yarns of the upper layer 2 in any suitable way, such as e.g. shed, double shed, jacquard, double jacquard or flat knitting. If it is desired, said metallic yarns 3a, 3b can be covered, e.g. by cotton or wool yarns.
As stated previously, the fabric of the present invention is very flexible, compared with the conventional anti-vandal fabrics, and forms a barrier against fire. Even though reference is made to a specific embodiment of the invention, it is apparent for a person skilled in the art that the disclosed anti-vandal fabric is susceptible of several variations and modifications, and that all of said details can be substituted by other technically equivalent ones, without departing from the scope defined by the attached claims.