EP0748402A1 - Procede de production d'un fil de trame en polyester pour toile de pneumatique - Google Patents

Procede de production d'un fil de trame en polyester pour toile de pneumatique

Info

Publication number
EP0748402A1
EP0748402A1 EP96900230A EP96900230A EP0748402A1 EP 0748402 A1 EP0748402 A1 EP 0748402A1 EP 96900230 A EP96900230 A EP 96900230A EP 96900230 A EP96900230 A EP 96900230A EP 0748402 A1 EP0748402 A1 EP 0748402A1
Authority
EP
European Patent Office
Prior art keywords
weft yarn
polyester
elongation
dtex
tex
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
EP96900230A
Other languages
German (de)
English (en)
Other versions
EP0748402B1 (fr
Inventor
Klaus Fischer
Paul Schaffner
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.)
ExNex AG
Original Assignee
Rhone Poulenc Viscosuisse SA
Societe de la Viscose Suisse SA
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
Application filed by Rhone Poulenc Viscosuisse SA, Societe de la Viscose Suisse SA filed Critical Rhone Poulenc Viscosuisse SA
Publication of EP0748402A1 publication Critical patent/EP0748402A1/fr
Application granted granted Critical
Publication of EP0748402B1 publication Critical patent/EP0748402B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/48—Tyre cords
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/902—Reinforcing or tire cords
    • 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
    • Y10T428/2933—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

Definitions

  • the invention relates to a process for the continuous production of a multifilament, stretchable weft yarn from polyester POY filaments for tire cord fabric, and to a weft yarn produced by the process.
  • a polyester POY (partially oriented yarn) is a yarn made from 2800 to approx. 4200 m / min by melt spinning polyester.
  • the object of the invention is to provide a technically simple and economical method for producing a high-stretch polyester weft yarn for tire cord fabric.
  • Another task is to provide a weft yarn with a high elongation, which is retained even after extreme thermal stress. At the same time, the yarn should have very low thermal shrinkage and the longest possible run length per unit weight.
  • polyester POY filament with an initial titer of dtex 170-260 is swirled with a compressed gas and immediately thereafter shrunk with an advance of 40-80% at 230-240 ° C.
  • the threads must lie as flat as possible in the cord fabric, so that there are no undesired elevations at the crossover points warp / weft which are coated unevenly during the dip treatment. With a titer below 170 dtex, the tensile strength is too low and the reversibility limit is inadequate.
  • the heat shrinkage is expediently carried out at 220-235, in particular at 230-235 ° C., for a period of at least 0.2 seconds, preferably in a convection heater.
  • This has the advantage that a reversibility limit of greater than 3 cN / tex results and a sufficient roughness or sliding resistance is guaranteed.
  • high-tensile weft yarns made from shrunk polyester POY tend to elongate in the event of a subsequent thermal load, such as those that are subjected to cord fabric during impregnation. This elongation can lead to uneven cord fabrics, which can be difficult for further processing.
  • the weft yarn according to the invention simultaneously satisfies the following conditions: the surface of the weft yarn is rough and slip-resistant, the tensile strength> 7 cN / tex, elongation 170-270%, and the thermal shrinkage (at 160 ° C.) in the range + 2% - minus 2%.
  • the number of knots is more than 25 knots / m. At less than 25 knots / m, the fibril bandage is not sufficiently compact, which can result in drainage problems and dip deposits.
  • the weft yarn After a heat-free heat treatment at 235 ° C. for 2 minutes, the weft yarn has a residual elongation of at least 110% and a thread elongation of less than 5%.
  • Example 1 shows the properties of the yarn according to the invention after shrinking without and with 5% post-stretching.
  • Examples 2-4 relate to the production conditions according to the invention without post-stretching.
  • Polyester-POY master thread dtex 190f36
  • Polyester-POY master thread dtex 260f48 intermingling pressure: 2bar
  • the weft yarn according to the invention has, in addition to the one-step process, with swirling, shrinking and post-stretching being carried out continuously in one process step, in particular a strong reduction in the elongation tendency after additional heat treatment at 235 ° C., which makes it outstandingly suitable of a weft yarn for use in tire construction. It is surprising that the roughness or the pushing strength can be achieved without twisting or coating. After the twisting incident, the disadvantageous elongation can be significantly reduced by additional hot stretching.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)
  • Tires In General (AREA)

Abstract

Selon un procédé de production en continu d'un fil de trame multifilament extensible, constitué de filaments de polyester partiellement orientés, pour toile de pneumatique, le filament de polyester partiellement orienté est tourbillonné à un titre initial de 170-260 dtex et immédiatement après soumis à un retrait à une avance de 40-80 % à 230-240 DEG C. Le fil de trame ainsi obtenu présente une surface rugueuse non glissante, une résistance supérieure à 7cN/tex, un alongement supérieur ou égal à 180 % et un taux de retrait thermique (à 160 DEG C) de +2 % à -2 %.
EP96900230A 1995-01-25 1996-01-15 Procede de production d'un fil de trame en polyester pour toile de pneumatique Expired - Lifetime EP0748402B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH19695 1995-01-25
CH19695 1995-01-25
PCT/CH1996/000016 WO1996023091A1 (fr) 1995-01-25 1996-01-15 Procede de production d'un fil de trame en polyester pour toile de pneumatique
CH196/95 1996-01-25

Publications (2)

Publication Number Publication Date
EP0748402A1 true EP0748402A1 (fr) 1996-12-18
EP0748402B1 EP0748402B1 (fr) 1999-11-03

Family

ID=4181451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96900230A Expired - Lifetime EP0748402B1 (fr) 1995-01-25 1996-01-15 Procede de production d'un fil de trame en polyester pour toile de pneumatique

Country Status (10)

Country Link
US (1) US5817417A (fr)
EP (1) EP0748402B1 (fr)
JP (1) JPH09511032A (fr)
KR (1) KR970702394A (fr)
CN (1) CN1061396C (fr)
BR (1) BR9603947A (fr)
DE (1) DE59603535D1 (fr)
EA (1) EA000012B1 (fr)
ES (1) ES2140817T3 (fr)
WO (1) WO1996023091A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW393533B (en) * 1997-05-06 2000-06-11 Rhodia Filtec Ag Woof for tire cord fabric and method for producing it from thermally insulated polyamide 66
WO2001095043A1 (fr) * 2000-06-05 2001-12-13 Hideyuki Yoshikawa Dispositif mobile telecommande
EP1288357A1 (fr) * 2001-08-10 2003-03-05 Milliken Europe N.V. Tissu en cablé
JP5365376B2 (ja) * 2009-06-30 2013-12-11 横浜ゴム株式会社 空気入りタイヤ
CN112281272A (zh) * 2020-10-15 2021-01-29 联新（开平）高性能纤维有限公司 一种超高强度尺寸稳定性聚酯帘子布经纱及其制备方法和应用

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1590809A (en) * 1976-11-05 1981-06-10 Teijin Ltd Tyre cord fabric and tyre construction
US4334401A (en) * 1979-05-03 1982-06-15 Courtaulds Limited Process for making textured yarn
JPS56330A (en) * 1979-06-15 1981-01-06 Teijin Ltd Original fiber for tire cord textile woof and tire cord textile
JPS5620624A (en) * 1979-07-24 1981-02-26 Teijin Ltd Composite three layered structure yarn having japanese brocade feeling
US4416935A (en) * 1981-12-11 1983-11-22 E. I. Du Pont De Nemours & Co. Bulked extensible weft yarn suitable for use as tire cords
US5174936A (en) * 1985-06-14 1992-12-29 Hoechst Aktiengesellschaft Process for preparing yarn component suitable for use in formable sheet structures
DE3668647D1 (de) * 1985-11-20 1990-03-08 Schweizerische Viscose Verfahren zur herstellung eines schussfadens aus polyester-poy.
DE3720237A1 (de) * 1987-06-15 1989-01-05 Amann & Soehne Verfahren zum herstellen von luftblastexturiertem naehgarn
US5146738A (en) * 1987-05-15 1992-09-15 Amann Und Sohne Gmbh & Co. Thread having looped effect yarn intermingled with multi-filament core yarn
US5173231A (en) * 1989-12-29 1992-12-22 E. I. Du Pont De Nemours And Company Process for high strength polyester industrial yarns

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9623091A1 *

Also Published As

Publication number Publication date
BR9603947A (pt) 1997-10-14
EA000012B1 (ru) 1997-12-30
KR970702394A (ko) 1997-05-13
ES2140817T3 (es) 2000-03-01
CN1061396C (zh) 2001-01-31
WO1996023091A1 (fr) 1996-08-01
DE59603535D1 (de) 1999-12-09
JPH09511032A (ja) 1997-11-04
CN1145646A (zh) 1997-03-19
EP0748402B1 (fr) 1999-11-03
EA199600086A1 (ru) 1997-09-30
US5817417A (en) 1998-10-06

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