Heat resistant outershell fabric

1. A yarn for a thermally resistant fabric sheet, wherein said yarn comprises

i) meta-aramid

ii) from about 5 to 10 weight % of polyamide and

iii) at least 2 weight % of antistatic fibers, the weight % being based on the total weight of the yarn,

wherein the polyamide is either an aliphatic or semi-aromatic polyamide.

2. The yarn according to claim 1 , wherein said yarn comprises approximately

i) 91 weight % meta-aramid

ii) 7 weight % polyamide

iii) 2 weight % antistatic fibers, the weight % being based on the total weight of the yarn.

3. The yarn according to claim 1 or 2 , wherein the linear density Nm of the yarn is from about 40/2 to about 140/2.

4. The yarn of claim 3 , wherein the linear density Nm of the yarn is about 80/2.

5. A woven fabric sheet comprising the yarn of claim 1 or 2 .

6. The woven fabric according to claim 5 , wherein warp and weft are made from the same yarn.

7. The woven fabric according to claim 5 , wherein the fabric is a plain weave.

8. A multiple ply fabric sheet comprising at least one ply made of the woven fabric of claim 5 .

9. The multiple ply fabric sheet according to claim 8 , wherein said fabric is a two-ply fabric and wherein the other ply is made of a 100% para-aramid yarn.

10. The fabric sheet according to claim 8 , wherein said fabric is a two-ply fabric and wherein the two plies are formed by an inside fabric layer (B) and an outside fabric layer (A) joined together by an array of connecting lines ( 10 ).

11. The fabric sheet of claim 10 , wherein the inside fabric layer (B) and outside fabric layer (A) are both woven fabrics and are joined together by an array of woven connecting lines ( 10 ) formed by interwoven threads making up the fabrics.

12. The fabric sheet according to claim 10 , wherein the array of connecting lines ( 10 ) is constituted by a plurality of connecting lines being arranged in an isolated group ( 30 ) of a generally Y-shaped configuration with three lines extending from a convergence point ( 40 ), the lines being connected together at their convergence point and wherein each isolated group is spaced apart from one another.

13. A garment, in particular a garment for exposure to high temperature environments, comprising the woven fabric sheet of claim 5 .

14. A garment, in particular a garment for exposure to high temperature environments, comprising the woven fabric sheet of claim 10 , wherein the outside fabric layer (A) of the fabric sheet is disposed on the outside of the garment.