Patent US4430957A successfully refreshed from Google Patents.
US4069657A
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Yarn texturing process
Assignee: EIDP Inc
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Filing: 1975-07-18
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Granted: 1978-01-24
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Expires: 1995-07-18
Abstract
Abstract Air-jet textured core/effect nylon yarn provides fabrics having better cover when the core component has been draw-oriented after conventional melt-spinning, and the effect component has been spin-oriented by melt-spinning at unusually high speed. The improved yarn is particularly useful in upholstery fabrics.
Inventors
- 👤 Laurence N. Bascom
- 👤 Franklin G. Parker
- 👤 James W. Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:09
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/165; D02G1/168; D02G3/00; D02G3/22; D02G3/34; D10; D10B; D10B2331/00; D10B2331/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
In the preparation of nylon core/effect yarn by an air-jet texturing process wherein multifilament core yarn is fed to the jet at a speed that is 5 to 8 percent greater than the take-off speed from the jet, and multifilament effect yarn is fed to the jet at a speed that is about 25 percent greater than the take-off speed from the jet; the improvement which comprises feeding core yarn prepared by a process in which polyhexamethyleneadipamide is melt spun at a speed of less than 1000 yards per minute and which includes cold-drawing at least 2.5× to a break elongation of 20 to 40 percent, and feeding effect yarn prepared by a process in which polyhexamethyleneadipamide is melt spun at a speed greater than 2000 yards per minute and is not cold-drawn and the yarn has a break elongation of 70 to 100 percent.
Claim 2
Dependent Claim
145 words
In the preparation of nylon core/effect yarn by an air-jet texturing process wherein multifilament core yarn is fed to the jet at a speed that is 5 to 8 percent greater than the take-off speed from the jet, and multifilament effect yarn is fed to the jet at a speed that is about 25 percent greater than the take-off speed from the jet; the improvement which comprises feeding core yarn prepared by a process in which polyhexamethyleneadipamide is melt spun at a speed of less than 1000 yards per minute and which includes cold-drawing at least 2.5× to a break elongation of 20 to 40 percent, and feeding effect yarn prepared by a process in which polyhexamethyleneadipamide is melt spun at a speed greater than 2000 yards per minute and is not cold-drawn and the yarn has a break elongation of 70 to 100 percent.
References Cited (Backward Citations)
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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) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |