Textile fabrics with color effect

Abstract

The invention relates to a textile fabric having a woven fabric, which is made up in whole or in part of flat filament yarns, wherein warp threads and weft threads form the woven fabric and wherein the warp threads and the weft threads are each made of a polymer. The invention provides that the warp threads and the weft threads are spun dyed and are different colors, which produce a varying color of the woven fabric depending upon a viewing angle.

Claims

1. Textile fabric having a woven fabric, comprising: in whole or in part flat filament yarns, in which warp threads and weft threads form the woven fabric; the warp threads and the weft threads are each made of a polymer, and all of the warp threads are spun dyed a first color and all of the weft threads are spun dyed a second color that is different from the first color, whereby the woven threads of different colors produce a perceived color for the woven fabric that varies depending upon a viewing angle.

2. Textile fabric according to claim 1, wherein the warp threads and the weft threads are made of the same polymer.

3. Textile fabric according to claim 1, wherein the warp threads and the weft threads are each made of polyacrylonitrile.

4. Textile fabric according to claim 1, wherein the warp threads and the weft threads are designed as multifilaments.

5. Textile fabric according to claim 4, wherein the multifilaments are formed respectively from approximately 150 to 250 individual filaments.

6. Textile fabric according to claim 4, wherein a ratio of a warp density to a weft density is 1.5 to 2.5.

7. Textile fabric according to claim 4, wherein a fineness of the warp threads and the weft threads is 50 to 2000 dtex.

8. Textile fabric according to claim 4, wherein the warp threads and the weft threads have a different fineness.

9. Textile fabric according to claim 1, wherein a fineness of the warp threads is at least 1.5 times that of the weft threads.

10. Textile fabric according to claim 1, wherein a thread count of the warp threads and/or weft threads is 10 to 50 threads per cm.

11. Textile fabric according to claim 1, wherein the warp threads and the weft threads are interlaced by a twill weave construction.

12. Textile fabric according to claim 1, wherein the warp threads are made of a staple fiber yarn and the weft threads of a flat filament yarn.

13. Textile fabric according to claim 12, wherein the warp threads are made of polyacrylonitrile.

14. Textile fabric according to claim 12, wherein the weft threads are made of a polyester.

15. Textile fabric according to claim 12, wherein the warp threads and the weft threads are made of polyacrylonitrile.

16. Textile fabric according to claim 1, wherein the warp threads are made of a flat filament yarn and the weft threads of a staple fiber yarn.

17. Textile fabric according to claim 1, wherein an underfabric is provided to which the woven fabric is connected.

18. Textile fabric according to claim 17, wherein the woven fabric is connected to the underfabric via a rubber layer.

19. A textile fabric according to claim 1 for retractable and extendable lengths of material which have a perceptible color that varies depending upon a viewing angle, the textile fabric being configured as one of soft tops of convertible cars or awnings.

20. A device comprising: at least one drive; and at least one textile fabric designed according to claim 1, wherein the at least one textile fabric is movable by operation of the drive.

21. Textile fabric according to claim 5, wherein the multifilaments are formed respectively from 180 to 220 individual filaments.

22. Textile fabric according to claim 7, wherein the fineness of the warp threads and the weft threads is 300 to 800 dtex.

23. A woven textile fabric, comprising: flat filament yarns that are made of a polymer and that are arranged as warp threads and weft threads that are woven together; and the warp threads are spun dyed one color consisting of a first color and the weft threads are spun dyed another color consisting of a second color different from the first color so that, when woven together, a perceived color of the woven flat filament yarns varies depending upon a viewing angle of the woven flat filament yarns.

24. A method of forming the textile fabric according to claim 1, the method comprising: spin dying the warp threads the first color and the weft threads the second color different from the first color; and weaving together the spun dyed warp threads of the first color and the weft threads of the second color different from the first color to form the woven fabric, whereby the perceived color of the woven fabric varies depending upon a viewing angle of the woven fabric.

Description

EXAMPLE 1

Textile Fabric with Latent Image Effect for a Convertible Car

(1) Weave: 2/1 twill, Z direction

(2) Warp: PAN multifilament, black, spun dyed, 300 S turns per meter Fineness: approx. 600 dtex, 200 individual filaments Warp density: 30 threads per cm

(3) Weft: PAN multifilament, white, spun dyed, 100 S turns per meter Fineness: approx. 600 dtex, 200 individual filaments Weft density: 15 threads per cm

(4) A textile fabric having a woven fabric as described above was produced as a length of material for a soft stop of a convertible car equipped with a drive. The corresponding woven fabric was applied to an underfabric, wherein a rubber layer was provided as an intermediate layer and the woven fabric was connected to the rubber layer by means of an adhesive. The textile fabric showed a black or whitish color depending upon the viewing angle. Long-term tests related to resistance to weathering and UV radiation showed no significant change in the visual impression.

EXAMPLE 2

Textile Fabric with Latent Image Effect for a Convertible Car

(5) Weave: 2/1 twill, Z direction

(6) Warp: PAN staple fiber, black, spun dyed Fineness: approx. 60 tex Warp density: 30 threads per cm

(7) Weft: Polyester multifilament, white, spun dyed, 100 S turns per meter Fineness: approx. 600 dtex, 200 individual filaments Weft density: 15 threads per cm

(8) As in Example 1, a material for a convertible car was manufactured and exposed in a standardized test to five cycles of an irradiation with a xenon lamp and was then compared to a material according to Example 1. In this case, no yellowing was identified after the irradiation cycles for a material according to Example 2, whereas a material according to Example 1 showed slight indications of yellowing.

EXAMPLE 3

Textile Fabric with Latent Image Effect for Awnings and Outdoor Furniture

(9) Plain Weave

(10) Warp: PAN staple fiber, green, spun dyed Fineness: approx. 60 tex Warp density: 30 threads per cm

(11) Weft: PAN multifilament, red, spun dyed, 100 S turns per meter Fineness: approx. 600 dtex, 200 individual filaments Well density: 15 threads per cm

(12) A textile fabric made exclusively of PAN was used to manufacture an awning as well as covers for outdoor furniture and exposed to weather conditions over a longer period of time, whereby no weather-related changes were identifiable on the textile.

CROSS REFERENCE TO PRIORITY APPLICATION

(13) This application claims priority under 35 U.S.C 119(a) to Austrian Patent Application No. A 50016/2011 filed Dec. 21, 2011, the disclosure of which is expressly incorporate by reference herein in its entirety.