Patent FR708355A successfully refreshed from Google Patents.
US4100725A
Expired / Lapsed
US
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Yarn having alternating entangled and unentangled lengths
Assignee: EIDP Inc
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Filing: 1976-09-20
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Granted: 1978-07-18
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Expires: 1996-09-20
Abstract
Abstract A yarn is provided which has zero twist and random lengths of tightly entangled fibers as nodes having substantially zero twist and comprising an average of about 20%-70% of a representative length of yarn, said nodes 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. A fraction of the fibers in the yarn can be broken to provide effect yarns.
Inventors
- 👤 Bernard Magel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:23
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/34; D02G1/00; D02G1/16; D02G1/161; D02G1/162; D02G1/164; D02G1/168; Y; Y10; Y10S; Y10S57/00; Y10S57/905; Y10S57/908; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2976
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
63 words
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.
Claim 2
Dependent Claim
63 words
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.
Claim 3
Dependent Claim
12 words
The yarn of claim 1 having a retentivity of at least 95%.
Claim 4
Dependent Claim
18 words
The yarn of claim 1 wherein the nodes having zero twist as produced have a substantially braided appearance.
Claim 5
Dependent Claim
12 words
The yarn of claim 1 having 30-60% nodes in the yarn length.
Claim 6
Dependent Claim
15 words
The yarn of claim 1 wherein the nodes have an average length of 1-8 mm.
Claim 7
Dependent Claim
15 words
The yarn of claim 1 wherein the intervals have an average length of 3-8 mm.
Claim 8
Dependent Claim
11 words
The yarn of claim 1 wherein the fibers have different deniers.
Claim 9
Dependent Claim
31 words
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.
Claim 10
Dependent Claim
14 words
The yarn of claim 8 wherein the organic fibers are fibers of a polyester.
Claim 11
Dependent Claim
13 words
The yarn of claim 8 having a denier of up to about 800.
Claim 12
Dependent Claim
13 words
The yarn of claim 10 having a denier of up to about 600.
Claim 13
Dependent Claim
12 words
The yarn of claim 1 wherein the organic fibers are bicomponent fibers.
Claim 14
Dependent Claim
14 words
The yarn of claim 1 wherein the organic fibers are bicomponent and monocomponent fibers.
Claim 15
Dependent Claim
16 words
A yarn wherein a fraction of the fibers in the yarn of claim 13 is broken.
Claim 16
Dependent Claim
13 words
The yarn of claim 1 wherein the organic fibers are splittable bicomponent fibers.
Claim 17
Dependent Claim
16 words
A yarn wherein a fraction of the fibers in the yarn of claim 15 is broken.
Claim 18
Dependent Claim
11 words
The yarn of claim 1 wherein the fibers have mixed shrinkage.
Claim 19
Dependent Claim
16 words
A yarn wherein a fraction of the fibers in the yarn of claim 17 is broken.
Claim 20
Dependent Claim
13 words
The yarn of claim 1 wherein the fibers have a modified cross section.
Claim 21
Dependent Claim
25 words
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.
Claim 22
Dependent Claim
12 words
The yarn of claim 1 wherein the fibers have mixed cross sections.
Claim 23
Dependent Claim
16 words
The yarn of claim 1 wherein a fraction of the fibers in the yarn is broken.
Claim 24
Dependent Claim
22 words
The yarn of claim 22 which contains at least two different fibers, each of which is composed of a different organic polymer.
Claim 25
Dependent Claim
18 words
The yarn of claim 22 which contains fibers of an organic polymer having at least two different viscosities.
Claim 26
Dependent Claim
13 words
The yarn of claim 22 which contains fibers having different deniers per filament.
Claim 27
Dependent Claim
24 words
The yarn of claim 22 having at least 20 fibers wherein the fibers in the yarn have an average dpf of less than 8.
Claim 28
Dependent Claim
8 words
A fabric of the yarn of claim 22.
Claim 29
Dependent Claim
8 words
The yarn of claim 1 having continuous filaments.
Claim 30
Dependent Claim
8 words
A fabric of the yarn of claim 1.
Claim 31
Dependent Claim
23 words
The yarn of claim 1 wherein the organic fibers are prepared by melt spinning at a withdrawal speed in excess of 2500 m/min.
Claim 32
Dependent Claim
28 words
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%.
Claim 33
Dependent Claim
23 words
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.
Claim 34
Dependent Claim
28 words
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%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |