Reinforcing Material for Textiles

Abstract

The present invention relates to a reinforcement material for textiles consisting of a non-woven support made of melt-spun polymer fibers and a hot-melt adhesive composition applied thereto, and to the use thereof.

Claims

1. A reinforcement material for textiles, wherein the reinforcing material consists of a non-woven support made of melt-spun polymer fibers and a hot-melt adhesive composition applied to said non-woven support, characterized in that the reinforcing material has an elongation at 100 N in at least one direction of at least 120% and no more than 350%, as determined according to ISO 9073-3.

2. The reinforcement material according to claim 1, characterized in that the reinforcing material has an elongation at 100 N in at least one direction of at least 140%, as determined according to ISO 9073-3.

3. The reinforcement material according to claim 1, characterized in that the reinforcing material according to the invention has an elongation at 100 N of from 120 to 300%, in at least one direction, determined according to ISO 9073-3.

4. The reinforcement material according to claim 1, characterized in that the reinforcing material has an elongation at break of from 250 to 700%, as determined according to ISO 9073-3.

5. The reinforcement material according to claim 1, characterized in that it has a maximum tensile force, as measured according to ISO 9073-3, in at least one direction of at least 100 N.

6. The reinforcement material according to claim 1, characterized in that said non-woven support has a base weight of from 150 to 500 g/m.sup.2.

7. The reinforcement material according to claim 1, characterized in that said hot-melt adhesive composition has a base weight of from 30 to 120 g/m.sup.2.

8. The reinforcement material according to claim 1, characterized in that the polymer of the non-woven support is selected from the group of polyester-based polymers, polyamide-based polymers, polyolefin-based polymers, polyurethane-based polymers, ethylene/vinyl acetate-based polymers, polyether-based polymers, elastomer-based polymers, copolymers thereof, and blends thereof.

9. The reinforcement material according to claim 1, characterized in that said hot-melt adhesive composition is selected from the group consisting of linear polyesters, linear polyethers, ethylene-vinyl acetate copolymers, polyethylene, high density polyethylene (HDPE), thermoplastic polyurethanes, polypropylenes, polyamides, thermoplastic elastomers, polyolefins, and mixtures and blends thereof.

10. The reinforcement material according to claim 1, characterized in that said hot-melt adhesive composition extends continuously throughout the surface of the non-woven support.

11. The reinforcement material according to claim 1, characterized in that the hot-melt adhesive composition has been applied discontinuously to the non-woven support.

12. The reinforcement material according to claim 1, characterized in that the reinforcing material has an air permeability, as determined according to DIN EN ISO 9237, at 100 kPa of at least 25 l/m.sup.2/s, and/or an air permeability at 200 kPa of at least 50 l/m.sup.2/s.

13. The reinforcement material according to claim 1, characterized in that the reinforcing material has an air permeability at 100 kPa of not more than 1000 l/m.sup.2/s.

14. (canceled)

15. The reinforcement material according to claim 3, characterized in that the reinforcing material according to the invention has an elongation at 100 N of from 140% to 250%, in at least one direction, determined according to ISO 9073-3.

16. The reinforcement material according to claim 4, characterized in that the reinforcing material has an elongation at break of from 300% to 600%, as determined according to ISO 9073-3.

17. The reinforcement material according to claim 5, characterized in that it has a maximum tensile force, as measured according to ISO 9073-3, in at least one direction of at least 120 N.

18. The reinforcement material according to claim 6, characterized in that said non-woven support has a base weight of from 250 to 400 g/m.sup.2.

19. The reinforcement material according to claim 7, characterized in that said hot-melt adhesive composition has a base weight of from 50 to 80 g/m.sup.2.

20. The reinforcement material according to claim 12, characterized in that the reinforcing material has an air permeability, as determined according to DIN EN ISO 9237, at 100 kPa of at least 30 l/m.sup.2/s, and/or an air permeability at 200 kPa of at least 55 l/m.sup.2/s.

21. The reinforcement material according to claim 1, characterized in that the reinforcing material has an air permeability at 100 kPa of not more than 750 l/m.sup.2/s.

Description

EXAMPLES

[0036] A reinforcing material according to the invention was prepared from a TPU melt-blown non-woven with a TPU hot-melt adhesive composition, wherein said hot-melt adhesive composition was applied to the non-woven support at a base weight of 60 g/m.sup.2 in the form of a net. The mechanical properties and air permeability of the reinforcing material obtained are summarized in Tables 1 and 2.

[0037] For Example 1, a non-woven support with a base weight of 390 g/m.sup.2 was used, and for Example 2, one with a base weight of 310 g/m.sup.2 was used.

TABLE-US-00001 TABLE 1 Mechanical properties Maximum tensile Elongation.sup.2 Elongation at Example Direction force.sup.1 [N] at 100N [%] break.sup.3 [%] 1 CMD 164 193 395 MD 185 148 376 2 CMD 142 235 354 MD 185 170 408 .sup.1determined according to ISO 9073-3 .sup.2determined according to ISO 9073-3 .sup.3determined according to ISO 9073-3 cmd: cross machine direction md: machine direction

TABLE-US-00002 TABLE 2 Air permeability Air permeability.sup.4 Example Pressure [l/m.sup.2/s] 1 100 kPa 33.7 200 kPa 65.1 2 100 kPa 31.6 200 kPa 59.3 .sup.4determined according to DIN EN ISO 9237

[0038] As can be seen from the data provided, the reinforcing material according to the invention combines advantageous mechanical properties with air permeability, which allows for a high wear comfort.