Microfiber

Patent metadata

Field	Value
Publication number	US-11932969-B2
Application number	US-201514620833-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Jan 11, 2008
Publication date	Mar 19, 2024
Grant date	Mar 19, 2024

Abstract

The present invention relates to a high-tenacity cellulosic regenerated fiber with an individual fiber titer of between 0.6 and 0.9 dtex and yarns and planar textile structures which contain regenerated fibers of this kind.

First claim

What is claimed is:

1. A high-tenacity cellulosic regenerated staple fiber with an individual fiber titer T between 0.6 and 0.9 dtex, wherein the generated fiber has a tenacity (B c ) in the conditioned state of B c (cN)≥1.3√T+2T and a wet modulus (B m ) with an elongation of 5% of B m (cN)≥0.5*√T, wherein the wet modulus is ≤10 cN/tex.

2. A yarn which comprises cellulosic regenerated fibers according to claim 1 .

3. The yarn according to claim 2 , produced using an air spinning process, wherein the yarn has a fineness of more than 50 Nm.

4. The yarn according to claim 2 or 3 , comprising 100% cellulosic regenerated fibers.

5. The yarn according to claim 2 , further comprising at least one other fiber type.

6. The yarn according to claim 5 , wherein the at least one other fiber type is selected from the group consisting of synthetic microfibers, other cellulosic fibers, and fine fibers of animal origin.

7. A planar textile structure comprising cellulosic regenerated fibers according to claim 1 .

8. The planar textile structure according to claim 7 having a weight per surface area of less than 150 g/m2.

9. The planar textile structure according to claim 7 , comprising 100% cellulosic regenerated fibers.

10. The planar textile structure according to claim 7 , comprising at least one other fiber type.

11. The planar textile structure according to claim 10 , wherein the at least one other fiber type is selected from the group consisting of synthetic microfibers, other cellulosic fibers, and fine fibers of animal origin.

12. The yarn according to claim 6 , wherein the synthetic microfibers are selected from the group consisting of polyester, polyamide and polyacrylic fibers.

13. The yarn according to claim 6 , wherein the other cellulosic fibers are selected from the group consisting of cotton, combed cotton, Lyocell, cupro, linen, ramie, and kapok.

14. The yarn according to claim 6 , wherein the fine fibers of animal origin are selected from the group consisting of alpaca, angora, cashmere, mohair and silks.

15. The planar textile structure according to claim 8 having a weight per surface area of less than 115 g/m2.

Assignees

• Chemiefaser Lenzing Ag

Inventors

• Leitner Johann
• Kroner Gert
• Dünser Egon
• Kämpf Karin
• Schobesberger Harald
• Möslinger Roland

Classifications

• D01F2/24 Primary

  from cellulose derivatives · CPC title

• D01F2/06 Primary

  from viscose · CPC title

• D02G3/04

  Blended or other yarns or threads containing components made from different materials · CPC title

• D10B2201/20

  Cellulose-derived artificial fibres · CPC title

• Y10T428/249921

  Web or sheet containing structurally defined element or component · CPC title