Textile fabric-elastomer composite
Disclosed herein is a composite material that is formed from a textile substrate having a surface, the textile substrate formed from a yarn, where the yarn is formed from a plurality of fibres or filaments, such that the yarn has a core region of fibres or filaments surrounded by a peripheral region of fibres or filaments; and a cured elastomeric material layer laid over the whole or part of the textile substrate surface, where the cured elastomeric material penetrates into the yarn and is attached to the fibres or filaments in the peripheral region of the yarn.
1. A composite material comprising:
a textile substrate having a surface, the textile substrate formed from a yarn, where the yarn is formed from a plurality of fibres or filaments, such that the yarn has a core region of fibres or filaments surrounded by a peripheral region of fibres or filaments; and
a cured elastomeric material layer laid over the whole or part of the textile substrate surface, wherein:
the cured elastomeric material penetrates into the yarn and is attached to the fibres or filaments in the peripheral region of the yarn; and
the cured elastomeric material is not attached to the fibres or filaments in the core region of the yarn,
wherein the cured elastomeric material is a silicone elastomer, and
wherein the silicone elastomer comprises a blend of a first and a second silicone elastomer, where:
the first silicone elastomer has: a pre-cured viscosity of from 100,000 to 300,000 centipoise at a temperature of 20° C.; a Durometer shore A hardness of from 5 to 20; an elongation to break of from 500 to 2000%; and a tensile strength of from 1 to 8 MPa; and
the second silicone elastomer has: a pre-cured viscosity of from 1,000 to 50,000 centipoise at a temperature of 20° C.; an Asker C hardness of from 10 to 25; an elongation to break of from 200 to 1500%; and a tensile strength of from 1 to 6 MPa.
2. The composite material according to claim 1 , wherein the elastomeric material has a pre-cured viscosity of from 60,000 to 120,000 centipoise at 20° C., where:
the first silicone elastomer has: a pre-cured viscosity of from 100,000 to 300,000 centipoise at a temperature of 20° C.; and
the second silicone elastomer has: a pre-cured viscosity of from 1,000 to 50,000 centipoise at a temperature of 20° C.
3. The composite material according to claim 1 , wherein the cured elastomeric material has one or more of the following properties when cured:
(a) a Durometer shore A hardness of from 3 to 15;
(b) a tensile strength of from 1 to 8 Mpa; and
(c) an elongation to break of from 500 to 1600%.
4. The composite material according to claim 1 , wherein the weight: weight ratio of the first silicone elastomer to the second silicone elastomer is from 1:10 to 10:1.
5. The composite material according to claim 1 , wherein a portion of the composite material formed from the textile substrate and the cured elastomeric material layer that has not been subject to washing has a normalized power that increases from 20 to 500% compared to the power of the textile substrate.
6. The composite material according to claim 1 , wherein a portion of the composite material formed from the textile substrate and the cured elastomeric material layer that has undergone washing to simulate at least 25 wash and dry cycles has a normalized power that increases from 20 to 500% compared to the power of the textile substrate.
7. The composite material according to claim 1 , wherein the cured elastomeric material layer includes a region abutting or adjacent to a peripheral edge portion of the textile substrate surface.
8. The composite material according to claim 1 , wherein the cured elastomeric material layer is laid as a pattern over part of the textile substrate surface.
9. The composite material according to claim 1 , wherein the yarns used in the textile substrate comprises one or more materials selected from a polyamide, spandex, elastane, polyester, an animal fibre and a cellulosic material.
10. The composite material according to claim 1 , wherein the textile substrate is a knitted fabric or a woven fabric.
11. The composite material according to claim 10 , wherein the knitted fabric is formed using one or more of single Jersey, double Jersey, tricot, and interlock stitching.
12. The composite material according to claim 10 , wherein the woven fabric has a stretchability of up to 50%.
13. A garment comprising a composite material as described in claim 1 .
14. The garment according to claim 13 , wherein the garment has a raw-cut edge along at least one periphery of the garment and the composite material is present along the length of the at least one periphery with the raw-cut edge.
15. The garment according to claim 13 , wherein the composite material is placed on a surface to be in direct contact with a wearer's skin, and is configured to grip the wearer without adding tackiness and substantially prevent the garment from moving.
16. A method of manufacturing a composite material according to claim 1 , the method comprising:
(a) providing a textile substrate having a surface, the textile substrate formed from a yarn, where the yarn is formed from a plurality of fibres or filaments, such that the yarn has a core region of fibres or filaments surrounded by a peripheral region of fibres or filaments; and
(b) applying an elastomeric material to the surface of the textile substrate and curing the elastomeric material to form the composite material according to claim 1 , wherein the elastomeric material has a pre-cured viscosity of from 60,000 to 120,000 centipoise at 20° C.