EP0099046A2 - Procédé de fabrication d'un fil mixte texturé - Google Patents

Procédé de fabrication d'un fil mixte texturé Download PDF

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Publication number
EP0099046A2
EP0099046A2 EP83106537A EP83106537A EP0099046A2 EP 0099046 A2 EP0099046 A2 EP 0099046A2 EP 83106537 A EP83106537 A EP 83106537A EP 83106537 A EP83106537 A EP 83106537A EP 0099046 A2 EP0099046 A2 EP 0099046A2
Authority
EP
European Patent Office
Prior art keywords
yarn
filament yarn
textured
smooth
undrawn
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
EP83106537A
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German (de)
English (en)
Other versions
EP0099046A3 (en
EP0099046B1 (fr
Inventor
Karl Heinrich
Adolf Donig
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0099046A2 publication Critical patent/EP0099046A2/fr
Publication of EP0099046A3 publication Critical patent/EP0099046A3/de
Application granted granted Critical
Publication of EP0099046B1 publication Critical patent/EP0099046B1/fr
Expired legal-status Critical Current

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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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • the present invention relates to a method for producing a mixed yarn, in which a false twist textured filament yarn is blown in a fluid nozzle with a smooth filament yarn supplied in excess. By this blowing, the false twist textured yarn is mixed with the smooth filament yarn with the simultaneous formation of a loop yarn.
  • the two different yarn components are usually blown immediately after the false twist texturing of the one component.
  • Such methods are described for example in JP 52 042 955 and also disclosed in JP 53 052 758. According to this preliminary literature, the yarn that is fanned by the blast texturing is then thermally fixed.
  • the smooth yarn component is produced according to the prior art cited above in a separate process by spinning and subsequent drawing in a second process step.
  • the false twist texturing in this prior publication is a false twist twist texturing
  • the smooth material is drawn according to FIG. 2 between 2 godets and under the action of a heater before it coexists with the false twist textured yarn is swirled in a fluid nozzle.
  • the smooth yarn must have particularly good textile properties because it is the load-bearing component in the blended yarn.
  • FIG. 2 of US Pat. No. 4,219,997 considerable mechanical effort is required even in the case of processing undrawn threads using a drawing process.
  • the object was therefore still to find a method for producing a mixed yarn from a false twist textured filament yarn and a smooth filament yarn which are swirled in a fluid nozzle, in which the manufacturing process is considerably simplified.
  • polyester yarns can be wound up at high speeds and that such a method can measure yarn strengths on the undrawn threads which are comparable to those of threads wound at slower speeds and then drawn (US Pat. No. 26 04 667).
  • threads made of polyethylene terephthalate with noticeable strengths are obtained if the spinning speed or more precisely the winding speed is above 5200 ypm, corresponding to approximately 4760 m / min.
  • no technical use of such undrawn yarns in an end product has become known. The reason for this is to be found in the fact that such undrawn threads have very high elongation values. Most of this stretch is also irreversible stretch.
  • a high proportion of irreversible elongation is practically equivalent to a low dimensional stability of a textile article under load.
  • an elongation at break of at least 70% can still be expected.
  • the elongation at break at 4300 m / min winding speed is more than 90%.
  • the smooth yarn component or the individual filaments of this component lay in small loops around the false twist-textured individual filaments of the other yarn component. Sheets made from such a blended yarn have a soft feel. Due to the false twist-textured carrier component and the smooth component inserted in loops and loops, the yarn has a high volume and shows a lively surface appearance.
  • the loop structure of the blended yarn remains with the finishing of the woven or knitted fabric made from it only obtained if the smooth yarn component has a low shrinkage.
  • the preoriented yarns with yield stresses above 7.5 cN / tex have low shrinkage values, which are generally below 10% for boiling shrinkage.
  • Another advantage of the smooth yarns used according to the invention is their high dye absorption. Such high dye uptake is known from undrawn threads, so far it has only been impossible to use such threads for a textile purpose.
  • the advantages of the method according to the invention are that the use of a special highly pre-oriented filament yarn as a supply yarn means that there is no need to stretch the threads, and thus the use of special stretching pallets and radiators for each individual thread or yarn to be treated.
  • the textured blended yarns produced are not reduced in their textile properties by the use of a smooth undrawn filament yarn because the false twist textured component acts as a carrier yarn. Even when processing or finishing the fabrics or knitted fabrics produced from the yarns produced according to the invention, no difficulties arise, the structure of the yarn is retained, since the undrawn but highly pre-oriented yarn with a yield stress of over 7.5 cN / tex only has high thermal shrinkage values time.
  • the undrawn yarn component is characterized by a high dye absorption.
  • the process according to the invention is generally applicable to melt-spinnable polymers, and is suitable especially for yarns made from thread-forming polyesters and especially for those made from polyethylene terephthalate.
  • Drawn yarns can also be used as the supply yarn for the false twist-textured yarn component, as can so-called high-speed spun yarns, as described, for example, in DE-OS 22 11 843.
  • highly pre-oriented yarns with this yarn component which, for example according to DE-OS 31 15 759, can be false-twist textured without the use of heaters or at only a lower heater temperature.
  • DE-OS 31 15 759 the use of non-round cross-section of the individual filaments under such conditions can achieve a particularly pronounced profile maintenance in the false twist texturing.
  • Such effects can also lead to a particularly attractive fancy yarn when blown with a smooth yarn according to the present invention.
  • a supply yarn on a spinning bobbin 1 runs via a delivery unit 2 into a stretch texturing machine, specifically via the heater 3, the twist generator 4 and is drawn off from the delivery unit 5 at a correspondingly higher speed.
  • a second yarn component is drawn off a bobbin 6 with the aid of a delivery unit 7 to produce the false twist textured yarn produced in this way.
  • Both yarns are now grasped by a suction nozzle 8, which is driven by a fluid medium, and are fanned there.
  • a further intermingling nozzle 9 which is also driven by a fluid medium, the yarn components are mixed intensively. The mixed yarn is then wound onto the bobbin 10.
  • the two nozzles 8 and 9 can also be replaced by a single nozzle of a suitable design. Appropriate nozzles are commercially available.
  • the method was carried out using a device whose basic structure corresponded to that of the figure.
  • the actual texturing machine had a heater of 1.25 m in length, and a Barmag friction unit with 3 x 3 ceramic discs of the designation (R) CYOCERA was used as the swirler.
  • the relative viscosity was determined as a 0.5% solution in a mixture of phenol: tetrachloroethane weight ratio 3: 2 at 25 °.
  • the supply yarn had been obtained during the spinning with a take-off speed of 3000 m / min, the heater temperature was 210 ° C, the drawing between the delivery units 2 and 5 1: 1.72, the ratio of the initial speed of the ceramic discs of the twister to the yarn speed (D. / Y) was 1.74, the texturing tension before and after the swirler was measured at 21 and 23 cN.
  • the yield stress is understood to be the quotient of the flow force and the titer of the insert yarn.
  • the flow force can be taken from the force-strain diagram. In such a diagram, a horizontal branch of the curve is usually observed after a linear increase (reversible range) and an overshoot at the pour point. In this area there is an increase in length without a simultaneous increase in force. The height of this flow zone is called the flow force. With a high degree of pre-orientation, the flow zone shortens to a minimum, possibly to an inflection point or kink, but the height of the flow force can be determined in any case.
  • the delivery speed of the filler thread was 370 m / min, i.e. the transmission of the smooth undrawn thread was about 23%.
  • the fold in the suction nozzle 8 was carried out with air at a pressure of 2 bar.
  • the following swirling nozzle was also operated with compressed air at 3.5 bar overpressure.
  • the mixed yarn thus obtained was wound onto cylindrical bobbins at a speed of 294 m / min.
  • the thread tension after the intermingling nozzle was 13 cN.
  • a nozzle as described in US Pat. No. 2,869,967, FIG. 4 was used as the suction nozzle.
  • the swirl nozzle used corresponded to U.S. Patent 2,985,995, Figs. 8 and 9.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP83106537A 1982-07-10 1983-07-05 Procédé de fabrication d'un fil mixte texturé Expired EP0099046B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823225964 DE3225964A1 (de) 1982-07-10 1982-07-10 Verfahren zum herstellen eines texturierten mischgarnes
DE3225964 1982-07-10

Publications (3)

Publication Number Publication Date
EP0099046A2 true EP0099046A2 (fr) 1984-01-25
EP0099046A3 EP0099046A3 (en) 1986-11-20
EP0099046B1 EP0099046B1 (fr) 1989-10-18

Family

ID=6168210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106537A Expired EP0099046B1 (fr) 1982-07-10 1983-07-05 Procédé de fabrication d'un fil mixte texturé

Country Status (2)

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EP (1) EP0099046B1 (fr)
DE (2) DE3225964A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542086A1 (de) * 1985-11-28 1987-06-04 Berker Geb Schalteraufbau fuer einen schalter, insbesondere geraeteeinbauschalter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925257A1 (de) * 1968-05-22 1969-11-27 Heberlein & Co Ag Verfahren zur Herstellung eines wenigstens annaehernd dehnungslosen hochbauschigen Textilgarnes
DE2211843A1 (de) * 1972-03-11 1973-09-20 Hoechst Ag Verwendung unverstreckter polyaethylenterephthalatfaeden
US4219997A (en) * 1978-08-17 1980-09-02 Phillips Petroleum Company Spun-like continuous multifilament yarn
DE3115759A1 (de) * 1981-04-18 1982-11-04 Hoechst Ag, 6000 Frankfurt "verfahren zur herstellung von texturiertem profilgarn und die dabei erhaltenen garne"

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925257A1 (de) * 1968-05-22 1969-11-27 Heberlein & Co Ag Verfahren zur Herstellung eines wenigstens annaehernd dehnungslosen hochbauschigen Textilgarnes
DE2211843A1 (de) * 1972-03-11 1973-09-20 Hoechst Ag Verwendung unverstreckter polyaethylenterephthalatfaeden
US4219997A (en) * 1978-08-17 1980-09-02 Phillips Petroleum Company Spun-like continuous multifilament yarn
DE3115759A1 (de) * 1981-04-18 1982-11-04 Hoechst Ag, 6000 Frankfurt "verfahren zur herstellung von texturiertem profilgarn und die dabei erhaltenen garne"

Also Published As

Publication number Publication date
DE3225964A1 (de) 1984-01-12
EP0099046A3 (en) 1986-11-20
EP0099046B1 (fr) 1989-10-18
DE3380739D1 (en) 1989-11-23

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