US3828542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel effect yarns and process for producing the same
Assignee: Rhodiaceta SA
•
Filing: 1971-11-18
•
Granted: 1974-08-13
•
Expires: 1991-11-18
Abstract
Abstract Effect yarns having an irregular and twisted surface formed from at least two components having different physical properties, at least one of which is a thermoplastic material which are intermittently bonded to form the effect. These effect yarns are produced by heating the yarns to soften at least one component and twisting and untwisting the softened yarns.
Inventors
- 👤 A Boutonnet
- 👤 G Clavelet
- 👤 G Morieras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:40
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0253; D02G1/0246; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2929; Y10T428/2931
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A multi-filament yarn having an irregular surface and a twisted appearance, comprising at least two filaments, each filament having at least two components, each component having different softening temperatures, degradation temperatures or both, at least one of said components being thermoplastic, at least some of said filaments being bonded to each other at various points along the length of said yarn, the surface of said yarn having helical portions of random length, direction and pitch.
Claim 2
Dependent Claim
75 words
A multi-filament yarn having an irregular surface and a twisted appearance, comprising at least two filaments, each filament having at least two components, each component having different softening temperatures, degradation temperatures or both, at least one of said components being thermoplastic, at least some of said filaments being bonded to each other at various points along the length of said yarn, the surface of said yarn having helical portions of random length, direction and pitch.
Claim 3
Dependent Claim
10 words
The yarn of claim 1, wherein said components are side-by-side.
Claim 4
Dependent Claim
29 words
The yarn of claim 1, wherein said filaments are coaxially formed of two different components in a sheath-core relationship, the sheath having a lower softening point than the core.
Claim 5
Dependent Claim
26 words
The yarn of claim 1, wherein a part of at least some of said filaments are bonded to each other at spaced intervals along said yarn.
Claim 6
Dependent Claim
34 words
The yarn of claim 1, wherein at least some of said filaments are bonded together only intermittently along the length of said yarn, and define free portions between these points which produce an effect.
Claim 7
Dependent Claim
18 words
The yarn of claim 5, wherein at least some of said filaments in said free portions are broken.
Claim 8
Dependent Claim
80 words
A process for obtaining an effect yarn comprising heating a multi-filament yarn having at least two filaments, each filament having at least two components having different softening temperatures, degradation temperatures or both, said filaments having at least one thermoplastic component, to a setting temperature at least sufficient to cause bonding of the component having the lowest softening temperature and insufficient to affect the textile characteristics of said component having the highest softening temperature, twisting said yarn and untwisting said yarn.
Claim 9
Dependent Claim
80 words
A process for obtaining an effect yarn comprising heating a multi-filament yarn having at least two filaments, each filament having at least two components having different softening temperatures, degradation temperatures or both, said filaments having at least one thermoplastic component, to a setting temperature at least sufficient to cause bonding of the component having the lowest softening temperature and insufficient to affect the textile characteristics of said component having the highest softening temperature, twisting said yarn and untwisting said yarn.
Claim 10
Dependent Claim
21 words
The process of claim 7, wherein said yarn is rapidly cooled after said heat treatment and prior to said untwisting treatment.
Claim 11
Dependent Claim
18 words
The process of claim 7, wherein said yarn is heated a second time after said yarn has untwisted.
Claim 12
Dependent Claim
25 words
The process of claim 7, wherein said yarn is additionally passed over a surface which causes some of the filaments of said yarn to break.
Claim 13
Dependent Claim
10 words
The process of claim 7, wherein the process is continuous.
Claim 14
Dependent Claim
10 words
The process of claim 7, wherein the process is discontinuous.
Claim 15
Dependent Claim
16 words
The process of claim 7, wherein said twisting and untwisting is imparted by a false-twist spindle.
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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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |