US4209559A
Expired / Lapsed
US
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Linear crystalline terephthalate polyester yarn and textile goods made therefrom
Assignee: Teijin Ltd
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Filing: 1979-03-26
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Granted: 1980-06-24
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Expires: 1999-03-26
Abstract
Abstract Novel polyester filamentary yarn is provided having (a) a fineness of 0.9 denier per filament or less, (b) an amorphous orientation in the range of 30% to 70% and (c) a negative ε 0 .2 where said ε 0 .2 is a structural integrity parameter. The yarn possesses ameliorated properties regarding a heat-setting property, a raising property, a dimensional stability and a twist resistance. The yarn finds its wide range of usage, for example, silky fabrics with an excellent fullness, pliability and liveliness, raised fabrics with thermally stabilized fluffs protruding straight-forwardly and an extremely soft hand, and uniformly creped fabrics with an improved surface contour are obtained therefrom.
Inventors
- 👤 Osamu Wada
- 👤 Yoshiyuki Sasaki
- 👤 Shiro Kumakawa
- 👤 Akio Kimura
- 👤 Toshimasa Shimizu
- 👤 Hiroyuki Nagai
- 👤 Shunichi Takeda
- 👤 Takumi Shimazu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:07
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/62; D03; D03D; D03D15/00; D03D15/20; D03D15/283; D03D15/30; D03D15/33; D03D15/40; D03D15/41; D03D15/49; D03D15/50; D03D15/573; D10; D10B; D10B2331/00; D10B2331/04; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/29; Y10T428/2904; Y10T428/2913; Y10T428/31504; Y10T428/31786; Y10T442/00; Y10T442/30; Y10T442/3146
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
53 words
A linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments wherein that each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70% and, wherein the structural integrity parameter (ε 0 .2) of said yarn is negative.
Claim 2
Dependent Claim
53 words
A linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments wherein that each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70% and, wherein the structural integrity parameter (ε 0 .2) of said yarn is negative.
Claim 3
Dependent Claim
28 words
A linear crystalline terephthalate polyester yarn according to claim 1 wherein said structural integrity parameter (ε 0 .2) has a value expressed by the following range. 0>ε.sub.0.2 ≦-0.025
Claim 4
Dependent Claim
23 words
A linear crystalline terephthalate polyester yarn according to claim 1 or 2 wherein the boil-off shrinkage of said yarn is 7.5% or less.
Claim 5
Dependent Claim
32 words
A linear crystalline terephthalate polyester yarn according to claim 1 wherein said yarn has a slight coherency factor of 5 to 40 per meter when measured by the slight pin count test.
Claim 6
Dependent Claim
123 words
A polyester commingled yarn consisting essentially of: [I] a linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) of said yarn is negative, and [II] a polyester filamentary yarn, having a fineness of 1 to 3 deniers per filament, the structural integrity parameter of which is at least 0.005 lesser than that of yarn [I] and, said yarn [I] and [II] being intermingled with each other in such ratio that yarn [I] occupies 20-80% and yarn [II] 80-20% by weight based on the commingled yarn, respectively.
Claim 7
Dependent Claim
123 words
A polyester commingled yarn consisting essentially of: [I] a linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) of said yarn is negative, and [II] a polyester filamentary yarn, having a fineness of 1 to 3 deniers per filament, the structural integrity parameter of which is at least 0.005 lesser than that of yarn [I] and, said yarn [I] and [II] being intermingled with each other in such ratio that yarn [I] occupies 20-80% and yarn [II] 80-20% by weight based on the commingled yarn, respectively.
Claim 8
Dependent Claim
105 words
A velour-like textured yarn which is produced by a process comprising a heat-relaxation treatment followed by a raising treatment of a commingled yarn consisting essentially of [I] a linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (f) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) is negative and [III] a multi-filamentary yarn having a boil-off shrinkage of at least 12% and still a relative boil-off shrinkage of at least 6% higher than that of yarn [I].
Claim 9
Dependent Claim
105 words
A velour-like textured yarn which is produced by a process comprising a heat-relaxation treatment followed by a raising treatment of a commingled yarn consisting essentially of [I] a linear crystalline terephthalate polyester yarn comprising a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (f) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) is negative and [III] a multi-filamentary yarn having a boil-off shrinkage of at least 12% and still a relative boil-off shrinkage of at least 6% higher than that of yarn [I].
Claim 10
Dependent Claim
95 words
A polyester cloth having an improved resistivity to air permeation which is produced by a process comprising a pressing step of a cloth, while it is heated, for the purpose of filling interstices of said cloth, said cloth being consisting essentially of a linear crystalline terephthalate polyester yarn comprised of a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) of said yarn is negative.
Claim 11
Dependent Claim
95 words
A polyester cloth having an improved resistivity to air permeation which is produced by a process comprising a pressing step of a cloth, while it is heated, for the purpose of filling interstices of said cloth, said cloth being consisting essentially of a linear crystalline terephthalate polyester yarn comprised of a bundle of extra-fine filaments, wherein each of the individual constituents has a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, and wherein the structural integrity parameter (ε 0 .2) of said yarn is negative.
Claim 12
Dependent Claim
21 words
A polyester cloth having a improved resistivity to air permeation according to claim 7 wherein said cloth is a woven fabric.
Claim 13
Dependent Claim
79 words
A raised cloth in which at least a face portion thereof if composed essentially of a linear crystalline terephthalate polyester yarn containing extra-fine filaments, wherein each of the filaments has a fineness of 0.9 or less and an amorphous orientation (fa) in the range of 30% to 70%, wherein the structural integrity parameter (ε 0 .2) of said yarn is negative, and said face portion being raised to form a fluffy portion composed of free ends of said filaments.
Claim 14
Dependent Claim
79 words
A raised cloth in which at least a face portion thereof if composed essentially of a linear crystalline terephthalate polyester yarn containing extra-fine filaments, wherein each of the filaments has a fineness of 0.9 or less and an amorphous orientation (fa) in the range of 30% to 70%, wherein the structural integrity parameter (ε 0 .2) of said yarn is negative, and said face portion being raised to form a fluffy portion composed of free ends of said filaments.
Claim 15
Dependent Claim
23 words
A raised cloth according to claim 9 wherein the linear crystalline polyester yarn has a tenacity of 5 grams per filament or less.
Claim 16
Dependent Claim
87 words
A hard-twist crepe fabric which is produced by a process comprising a relaxation step of a fabric to develope a crepe effect therein, said fabric containing hard-twisted yarns each of which comprises a bundle of extra-fine filaments, each filament having a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, said yarn bearing a structural integrity parameter (ε 0 .2) of less than zero and no less than -0.0025, and a boil-off shrinkage of no more than 7.5%.
Claim 17
Dependent Claim
87 words
A hard-twist crepe fabric which is produced by a process comprising a relaxation step of a fabric to develope a crepe effect therein, said fabric containing hard-twisted yarns each of which comprises a bundle of extra-fine filaments, each filament having a fineness of 0.9 denier or less and an amorphous orientation (fa) in the range of 30% to 70%, said yarn bearing a structural integrity parameter (ε 0 .2) of less than zero and no less than -0.0025, and a boil-off shrinkage of no more than 7.5%.
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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) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |