Claims
- 1. A yarn of organic fibers which has zero twist and random lengths of tightly entangled fibers as nodes having substantially zero twist, the nodes comprising an average of about 20%-70% of the yarn length, and having a retentivity of at least 75% and alternating with random lengths of substantially unentangled asymmetrically splayed fibers in intervals having an average length of about 3-12 mm.
- 2. The yarn of claim 1 having a retentivity of at least 95%.
- 3. The yarn of claim 1 wherein the nodes having zero twist as produced have a substantially braided appearance.
- 4. The yarn of claim 1 having 30-60% nodes in the yarn length.
- 5. The yarn of claim 1 wherein the nodes have an average length of 1-8 mm.
- 6. The yarn of claim 1 wherein the intervals have an average length of 3-8 mm.
- 7. The yarn of claim 1 wherein the fibers have different deniers.
- 8. The yarn of claim 1 wherein the organic fibers are fibers of a rayon, homo or copolymer of a nylon, aramide, polyester, acrylic polymer, polyolefin, or mixtures of any of them.
- 9. The yarn of claim 8 wherein the organic fibers are fibers of a polyester.
- 10. The yarn of claim 8 having a denier of up to about 800.
- 11. The yarn of claim 10 having a denier of up to about 600.
- 12. The yarn of claim 1 wherein the organic fibers are bicomponent fibers.
- 13. The yarn of claim 1 wherein the organic fibers are bicomponent and monocomponent fibers.
- 14. A yarn wherein a fraction of the fibers in the yarn of claim 13 is broken.
- 15. The yarn of claim 1 wherein the organic fibers are splittable bicomponent fibers.
- 16. A yarn wherein a fraction of the fibers in the yarn of claim 15 is broken.
- 17. The yarn of claim 1 wherein the fibers have mixed shrinkage.
- 18. A yarn wherein a fraction of the fibers in the yarn of claim 17 is broken.
- 19. The yarn of claim 1 wherein the fibers have a modified cross section.
- 20. The yarn of claim 1 which contains at least 10 fibers wherein the fibers in the yarn have an average dpf of less than 8.
- 21. The yarn of claim 1 wherein the fibers have mixed cross sections.
- 22. The yarn of claim 1 wherein a fraction of the fibers in the yarn is broken.
- 23. The yarn of claim 22 which contains at least two different fibers, each of which is composed of a different organic polymer.
- 24. The yarn of claim 22 which contains fibers of an organic polymer having at least two different viscosities.
- 25. The yarn of claim 22 which contains fibers having different deniers per filament.
- 26. The yarn of claim 22 having at least 20 fibers wherein the fibers in the yarn have an average dpf of less than 8.
- 27. A fabric of the yarn of claim 22.
- 28. The yarn of claim 1 having continuous filaments.
- 29. A fabric of the yarn of claim 1.
- 30. The yarn of claim 1 wherein the organic fibers are prepared by melt spinning at a withdrawal speed in excess of 2500 m/min.
- 31. The yarn of claim 30, wherein the nodes comprise an average of at least about 10% of the yarn length and a retentivity of at least about 50%.
- 32. The yarn of claim 1 wherein the organic fibers are fibers of a polyester having a birefringence of about 0.025 to about 0.05.
- 33. The yarn of claim 32, wherein the nodes comprise an average of at least about 10% of the yarn length and a retentivity of at least about 50%.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 599,144, filed July 25, 1975, and of application Ser. No. 708,209, filed July 23, 1976, both now abandoned.
US Referenced Citations (18)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1,117,502 |
Jun 1968 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
599144 |
Jul 1975 |
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