CA2310686A1 - Soft stretch yarns and their method of production - Google Patents

Soft stretch yarns and their method of production Download PDF

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Publication number
CA2310686A1
CA2310686A1 CA002310686A CA2310686A CA2310686A1 CA 2310686 A1 CA2310686 A1 CA 2310686A1 CA 002310686 A CA002310686 A CA 002310686A CA 2310686 A CA2310686 A CA 2310686A CA 2310686 A1 CA2310686 A1 CA 2310686A1
Authority
CA
Canada
Prior art keywords
yarn
fibres
yarn according
polyester
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002310686A
Other languages
French (fr)
Other versions
CA2310686C (en
Inventor
Takashi Ochi
Katsuhiko Mochizuki
Yuhei Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26487024&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2310686(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of CA2310686A1 publication Critical patent/CA2310686A1/en
Application granted granted Critical
Publication of CA2310686C publication Critical patent/CA2310686C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/326—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic the elastic properties due to the construction rather than to the use of elastic material
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/56—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y10T428/2924—Composite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)
  • Woven Fabrics (AREA)
  • Artificial Filaments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A soft stretch yarn substantially comprising polyester fibres has a stress, at 50% yarn stretch, of no more than 30 x 10-3 cN/dtex and, at the same time, a percentage recovery of at least 60%. Preferably, the Uster unevenness is no more than 2.0% and the crimp diameter is no more than 250 µm. This soft stretch yarn can be produced by spinning yarn of conjugate fibres comprising two types of polyester in which one component is PTT at a take-up velocity of at least 1200 m/min, drawing at a drawing temperature of 50 to 80°C at a draw ratio such that the drawn yarn tensile elongation is 20 to 45%, and then heat setting.

Claims (33)

1. A yarn comprising polyester fibres which yarn is characterized in that following heat treatment the yarn has a stress, at 50% yarn stretch, of no more than 30 x 10-3 cN/dtex and, at the same time, a percentage recovery of at least 60%.
2. A yarn according to Claim 1 where the Uster unevenness is no more than 2.0%.
3. A yarn according to Claim 1 where the diameter of the crimp is no more than 250 µm.
4. A yarn according to Claim 3 where the diameter of the crimp is no more than 200 µm.
5. A yarn according to Claim 1, having a strength of at least 2.2 cN/dtex and a shrinkage stress of at least 0.25 cN/dtex.
6. A yarn according to Claim 1, having a crimp retention factor after stretching 10 times of at least 85%.
7. A yarn according to Claim 6, where the crimp retention factor after stretching 10 times is at least 90%.
8. A yarn according to Claim 7, where the crimp retention factor after stretching 10 times is at least 95%.
9. A yarn according to Claim 1, which has conjugate fibres having at least two polyester components.
10. A yarn according to claim 9, wherein the conjugated fibre components are disposed eccentrically relative to one another in the cross-section of the fibres.
11. A yarn according to claim 9, wherein the ratio of the respective melt viscosities of the polyesters is from 1:1 to 5:1.
12. A yarn according to Claim 9, where at least one component of the conjugate fibres is PTT or PBT.
13. A yarn according to Claim 12, where at least one component of the conjugate fibres is PTT.
14. A yarn according to Claim 13 where the conjugate fibres comprise PTT and PET
15. A yarn according to Claim 1, having a crimp stretch factor (E o) when heat treated under no load of at least 45%.
16. A yarn according to Claim 1, having a crimp stretch factor (E3.5) when heat treated under a 3.5 x 10-3 cN/dtex (4 mgf/d) load of at least 10%.
17. A method of producing a yarn, which method is characterized in that a yarn of conjugate fibres comprising two types of polyester is spun at a take-up velocity of at least 1200 m/min, drawn at a drawing temperature of 50 to 80°C and heat set.
18. A method according to claim 17, wherein the fibres are drawn at a draw ratio such that the drawn yarn tensile elongation is 20 to 45%.
19. A method according to Claim 17, which is a direct spin draw method.
20. A method according to Claim 17, which is a 2-stage spinning and drawing method in which yarn is temporarily wound following the spinning and then drawn.
21. A method of producing a yarn, which method is characterized in that a yarn of conjugate fibres comprising two types of polyester is spun from a spinneret and taken up at a take-up velocity of at least 4000 m/min by providing a non-contact heater between the spinneret and a godet roller.
22. A method of producing a yarn, which method is characterized in that a yarn of conjugate fibres comprising two types of polyester is spun at a take-up velocity of at least 5000 m/min.
23. A method of producing a yarn according to Claim 17, where the spinning temperature is 250 to 280°C.
24. A method of producing a yarn according to Claim 17, where the melt viscosity ratio of the two types of polyester is from 1.05:1 to 5.00:1.
25. A method according to claims 17, wherein the yarn produced substantially comprises polyester fibres, which yarn has, following heat treatment, a stress at 50% yarn stretch is no more than 30 x 10-3 cN/dtex and, at the same time, a percentage recovery is at least 60%.
26. A combined yarn which is characterized in that the yarn has, in combination, a yarn component which is a yarn according to claim 1 and a yarn component which is a low shrinkage yarn of boiling water shrinkage no more than 10%.
27. A yarn according to Claim 1 or a combined yarn according to Claim 26, where a high twist coefficient of at least 5000 is applied.
twist coefficient = number of twists per 1 m (turns/m) x square root of denier (dtex x 0.9)
28. A fabric which is characterized in that it is produced using at least a yarn according to Claim 1.
29. A fabric according to Claim 28 which contains a yarn according to any one of Claims 1 to 16 at least as a component of a combined yarn.
30. A fabric according to claim 28 or Claim 29 which contains, as an entire yarn, a yarn according to any one of Claims 1 to 16.
31. A fabric according to claims 28 to 30, which additionally contains natural and/or semi-synthetic fibres.
32. A fabric according to claim 31, wherein the natural and/or semi-synthetic fibres are present as a component yarn in a combined yarn in which the other component is a yarn according to any of Claims 1 to 16.
33. A fabric according to Claim 31 or Claim 32, which contains respective separate yarns according to any one of Claims 1 to 16 and yarns of natural and/or semi-synthetic fibres.
CA2310686A 1999-06-08 2000-06-06 Soft stretch yarns and their method of production Expired - Fee Related CA2310686C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP160548/99 1999-06-08
JP16054899 1999-06-08
JP23824099 1999-08-25
JP238240/99 1999-08-25

Publications (2)

Publication Number Publication Date
CA2310686A1 true CA2310686A1 (en) 2000-12-08
CA2310686C CA2310686C (en) 2011-11-22

Family

ID=26487024

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2310686A Expired - Fee Related CA2310686C (en) 1999-06-08 2000-06-06 Soft stretch yarns and their method of production

Country Status (11)

Country Link
US (2) US6306499B1 (en)
EP (1) EP1059372B1 (en)
KR (1) KR100629813B1 (en)
CN (1) CN1154755C (en)
AT (1) ATE315673T1 (en)
CA (1) CA2310686C (en)
DE (1) DE60025440T2 (en)
ES (1) ES2255948T3 (en)
ID (1) ID26325A (en)
MY (1) MY128170A (en)
TW (1) TW476819B (en)

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Also Published As

Publication number Publication date
CA2310686C (en) 2011-11-22
CN1154755C (en) 2004-06-23
MY128170A (en) 2007-01-31
ES2255948T3 (en) 2006-07-16
ATE315673T1 (en) 2006-02-15
US6803000B2 (en) 2004-10-12
DE60025440T2 (en) 2006-08-24
US20010055683A1 (en) 2001-12-27
CN1276444A (en) 2000-12-13
US6306499B1 (en) 2001-10-23
EP1059372A3 (en) 2001-01-17
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EP1059372A2 (en) 2000-12-13
EP1059372B1 (en) 2006-01-11
KR100629813B1 (en) 2006-09-29
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TW476819B (en) 2002-02-21

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