US4060970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated spun-like bulked yarn
Assignee: Celanese Corp
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Filing: 1976-04-07
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Granted: 1977-12-06
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Expires: 1996-04-07
Abstract
Abstract A method for producing a spun-like yarn simulating a staple yarn is described wherein continuous filament yarn is produced which has characteristics similar to a staple spun yarn. The unusual continuous filament yarn produced is made by a texturing process which involves the crimping of a continuous synthetic yarn followed by overfeeding to an air bulking means and thence to heat setting means. The preferred method utilizes false twist texturing of synthetic filaments such as polyester, nylon, cellulose acetate or cellulose triacetate and mixtures thereof with an air bulking jet interposed to act on the false twist textured yarn while it has a high residual torque and subsequently decaying said torque.
Inventors
- 👤 James Richard Talbot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:16
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
69 words
A continuous filament spun-like yarn comprising a heat set stabilized multifilament synthetic yarn wherein individual filaments are longitudinally in a helical configuration with periodic reversals of extended helix direction along their length, said individual filaments additionally having torque induced kinks and twisted loops in random distribution along the length of said yarn, said yarn being held together as an integral bundle by the intermingling of the respective individual filaments.
Claim 2
Dependent Claim
69 words
A continuous filament spun-like yarn comprising a heat set stabilized multifilament synthetic yarn wherein individual filaments are longitudinally in a helical configuration with periodic reversals of extended helix direction along their length, said individual filaments additionally having torque induced kinks and twisted loops in random distribution along the length of said yarn, said yarn being held together as an integral bundle by the intermingling of the respective individual filaments.
Claim 3
Dependent Claim
27 words
The yarn of claim 1 wherein the synthetic filaments are selected from the group consisting of polyester, polyamide, cellulose acetate, cellulose triacetate, acrylic, modacrylic and mixtures thereof.
Claim 4
Dependent Claim
9 words
The yarn of claim 1 comprised of a polyamide.
Claim 5
Dependent Claim
9 words
The yarn of claim 1 comprised of polyethylene terephthalate.
Claim 6
Dependent Claim
35 words
The yarn of claim 1 wherein a kink is comprised of a torque induced loop of reversing helix twist wherein a filament completes a 360° turn and touches itself at the base of the loop.
Claim 7
Dependent Claim
28 words
The yarn of claim 5 wherein said yarn has an average of at least 5 kinks per centimeter of length when measured over a one meter yarn length.
Claim 8
Dependent Claim
19 words
The yarn of claim 5 wherein said yarn kinks are twisted at the base thereof 0.2 to 4 turns.
Claim 9
Dependent Claim
10 words
The yarn of claim 1 having substantially no real twist.
Claim 10
Dependent Claim
14 words
The yarn of claim 1 containing a core portion of substantially untextured continuous filaments.
Claim 11
Dependent Claim
13 words
The yarn of claim 1 wherein the individual filaments have a multilobal cross-section.
Claim 12
Dependent Claim
11 words
The yarn of claim 10 wherein the multilobal cross-section is hexalobal.
References Cited (Backward Citations)
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Cited
US3296785A
Cited
US3529323A
Cited
US3425893A
Cited
US3785135A
Cited
US3785136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |