EP0022421B1 - Procédé et dispositif pour l'obtention d'un fil présentant sur sa longueur des zones de torsion alternativement de sens inverse - Google Patents

Procédé et dispositif pour l'obtention d'un fil présentant sur sa longueur des zones de torsion alternativement de sens inverse Download PDF

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Publication number
EP0022421B1
EP0022421B1 EP80420086A EP80420086A EP0022421B1 EP 0022421 B1 EP0022421 B1 EP 0022421B1 EP 80420086 A EP80420086 A EP 80420086A EP 80420086 A EP80420086 A EP 80420086A EP 0022421 B1 EP0022421 B1 EP 0022421B1
Authority
EP
European Patent Office
Prior art keywords
yarn
twist
fact
false
yarns
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.)
Expired
Application number
EP80420086A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0022421A1 (fr
Inventor
Jean-Louis Faure
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.)
Dite Asa Sa SA Ste
Bpifrance Financement SA
Institut Francais Textile et Habillement
Original Assignee
Dite Asa Sa SA Ste
Agence National de Valorisation de la Recherche ANVAR
Institut Francais Textile et Habillement
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 Dite Asa Sa SA Ste, Agence National de Valorisation de la Recherche ANVAR, Institut Francais Textile et Habillement filed Critical Dite Asa Sa SA Ste
Publication of EP0022421A1 publication Critical patent/EP0022421A1/fr
Application granted granted Critical
Publication of EP0022421B1 publication Critical patent/EP0022421B1/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
    • 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
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/08—Twist arresters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
    • 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
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/286—Doubled, plied, or cabled threads with alternatively "S" and "Z" direction of twist, e.g. Self-twist process

Definitions

  • the present invention relates to an improved method for obtaining a wire having, along its length, zones of torsion alternately in opposite directions; it also relates to a device for implementing this method, as well as its application to obtaining self-twisted yarns.
  • the oldest which is used in particular for imparting resistance to a wick of fibers during spinning consists in subjecting said wick to the action of a friction element, acting transversely with respect to the direction of movement of the wick , alternately from right to left, then from left to right.
  • the method according to the invention is particularly suitable for the production of self-twisted yarns, that is to say yarns produced according to the technique which generally consists in bringing together at least two threads, the at least one has an alternating twist, so that they wrap around each other.
  • the two wires are alternately twisted so that they wind around one another, the zones of twist in the same direction being either in phase or slightly out of phase with respect to the 'other.
  • Such a technique is described in French patent FR-A-1,405,219 (US-A-3,225,533), and will not be described in detail.
  • the invention allows self-twisted yarns to be obtained which have numerous advantages over previous yarns such as, in particular, a higher production speed, possibilities for easily varying the length of the torsion reversal cycle, for simply adjusting the phase shift between the two alternating twist yarns intended to form the self-twisted yarn.
  • the alternating torsion communicated to the wire is stabilized downstream of the false twist member, and this, in an area located in the vicinity of the exit of the wire from said member.
  • Such a method makes it possible to produce unitary threads having an alternating twist along their length, these threads being able to be based on continuous filaments or fibers and possibly being associated with a core when they are obtained.
  • the stabilization of the alternating torsion communicated to the wire is obtained using conventional means, such as an interlacing nozzle, a sizing treatment, arranged as close as possible to the outlet of the member. communicating the wrong twist.
  • the alternating torsion stabilization operation presented by the produced yarn is obtained not by an additional treatment (interlacing, gluing) carried out at the exit from the false twist member but corresponds to the juxtaposition operation of the two wires in order to cause their self-twisting, this juxtaposition also being carried out in the immediate vicinity of the zone of exit of the wire from the false twist member, or even even inside this member when the latter is a friction pin internal.
  • FIG. 1 shows an example of implementation of the invention for obtaining a unitary wire with alternating twist.
  • the false twist spindle 5 is an internal friction spindle, but it is obvious that any other type of spindles could be used, for example an external friction spindle, one or more friction belts. ..
  • the deliverer 3 is disposed at a relatively large distance of the false torsion member 5.
  • an element 8 is arranged which makes it possible to vary the length of the twist rise without braking the wire.
  • This element designated by the expression "blocker in the present description and in the claims, is constituted in one embodiment by a positive deliverer which acts intermittently on the wire so that for a duration substantially equal to the time that puts a point considered of the wire to cross the distance D between the delivery member 3 and the false torsion member 5, the torsion communicated by the spindle 5 is stopped by the blocker 8 while, when the blocker does not act , the torsion goes up freely to the deliverer 3.
  • this blocker is constituted by a positive deliverer which comprises an upper cylinder 9 having a smooth surface, produced for example in a material marketed under the brand "Vulkolan •, this cylinder9 resting on a steel cylinder 10 which has, on a part of its periphery, grooves.
  • the wire is positively driven and the twist cannot go up. It is therefore possible to thus vary the length of the torsional rise.
  • the length of the solid parts and of the grooves of this cylinder 10 must be such that the wire is delivered positively for a duration substantially equivalent to that which a point considered of said wire takes to cross the distance between the element 3 delivering basic wire, and the false torsion member 5.
  • the diameter of the cylinder 10. is such that the perimeter of said cylinder is substantially equal to twice the distance D between the spindle 5 and the deliverer 3.
  • the proportions between the diameter of the cylinder 10 and the distance D were not respected in order to make them clearer.
  • the cylinder 10 has a notch on half of its periphery and is driven at a peripheral speed substantially equal to the speed of movement of the wire 2. In this way, it is therefore possible to block the rise in torsion alternately between a point located on the as close as possible to the false twist member 5 and a relatively distant point constituted by the de-icer 3, and this, for a duration substantially equal to the time taken by a point of the wire to cross space D.
  • torsion blocker is not limited to the only type of torsion blocker described above, but that it can be used with any equivalent device.
  • a deliverer consisting of two positively driven rollers, one of these rollers being mounted on a support associated with means making it possible to bring it intermittently into contact with the second.
  • the installation comprises, immediately at the outlet of the false twist spindle 5, a conventional member 21 making it possible to stabilize the twist, this member being able to be consisting, for example, of a compressed air interlacing nozzle, or a wire bonding system.
  • Such an installation can also be used to produce yarns of fibers having an internal core.
  • the core is preferably brought upstream of the stretching cylinders 3, this core 22 being shown in dotted lines in FIG. 1, either above or below the wick 2, but as close as possible to the part central of it.
  • suction means can be associated with the installation, these means being constituted for example by conventional pipettes preferably arranged in the vicinity of the outlet of the dispenser. 3.
  • the installation may also include a false-twist member 23, such as for example a pneumatic nozzle which facilitates the winding of the fibers around the core and the centering of the latter, this false-twist member being disposed near the outlet of the deliverer 3.
  • a false-twist member 23 such as for example a pneumatic nozzle which facilitates the winding of the fibers around the core and the centering of the latter, this false-twist member being disposed near the outlet of the deliverer 3.
  • condensers can be arranged upstream of the drawing train 3 in order, also, to promote the centering of the core in the wick.
  • FIGS. 2, 3 and 4 illustrate an installation produced in accordance with the invention, making it possible to simultaneously treat two wires which are then, before winding, joined together by autotorsion.
  • the intermittent blocker 8 is constituted by a deliverer, of the same type as that described above, but which makes it possible to act simultaneously on the two wires.
  • Such a delivery device comprises as before, a smooth cylinder 9, for example made of Vulkolan, and a steel cylinder 10 having grooves on its periphery laughs.
  • This cylinder 10 is advantageously made in two juxtaposed parts 31, 32, each having in their central zones, grooves 33, 34.
  • the perimeter of the cylinder 10 and the length of the grooves 33, and 34, will be determined in the same way as previously, but it is possible, in such an embodiment, to phase-shift the alternating torsion zones produced on the two elementary wires 2 in a simple manner, by shifting these two grooves 33, 34, with respect to one another.
  • guides for example ceramic fingers 35 and 36, are provided upstream of the intermittent blocker 8 to keep the two wires parallel.
  • the stabilization of the alternating torsion communicated to the two wires is obtained by the self-twisting of these two elements one on the other.
  • the grooves provided in the cylinder 10 must have a sufficient width to avoid pinching the fibers at the edges.
  • a wick 2 based on wool fibers (average length 62 millimeters), NM 2 (5,000 decitex) is treated, the drawing rate given in 4 being 20 and the speed of the outlet cylinders 3 of 200 meters / per minute.
  • an internal friction spindle 5 is used, having a concave external surface, driven at a speed of 1800 revolutions per minute.
  • the winding speed of the product yarn 7 is 207 meters per minute.
  • the deliverer 3 is disposed at a relatively large distance from the false-torsion member 5, this distance being in this case, equal to 27 centimeters.
  • a second deliverer 8 which acts intermittently on the wire 2 and which makes it possible to vary the length of the twist rise upstream of the spindle.
  • This deliverer consists of an upper cylinder 9 having a surface 10, in Vulkolan, and whose diameter is 5 centimeters.
  • This cylinder 9 rests on a lower cylinder 10, having a diameter equal to 10 centimeters, that is to say having a perimeter substantially equal to twice the distance B between the spindle 5 and the deliverer 3.
  • the cylinder 10 has a notch on half of its periphery and is driven at a speed of 384 revolutions per minute, its peripheral speed therefore being approximately 205 meters per minute. Furthermore, at the outlet of the false twist spindle 5 is disposed a bonding device 21 making it possible to stabilize the alternating twist produced.
  • a yarn of fibers of NM 40 (250 decitex) which has zones of alternating twist along its length, alternately of direction S and Z, each zone having a length of approximately 27 centimeters and a twist of 75 towers (in each zone).
  • Example 1 is repeated, but a core 22 constituted by a polyester thread textured by false twist, of 72 decitex 33 strands, is incorporated immediately before entering the deliverer 3.
  • a wick of fibers 2 As a wick of fibers 2, a wick of wool (average length 62 millimeters) having an NM of 3 (3,300 decitex) is used, the drawing ratio given in 4 is 35.
  • a core wire is obtained, the fiber cover of which exhibits alternating twist, this wire having a title of NM 60 (167 decitex).
  • FIGS. 2 and 4 show the production of a self-twisted wire by simultaneous treatment of two wires in accordance with the invention.
  • the installation comprises a second supply system 1, 3, 4 of wires 2 and that the intermittent deliverer has two parallel grooves 33, 34 making it possible to treat the two wires 2 separately.
  • separator guides 35, 36 are arranged upstream of the delivery member 8 and a separator 11 is disposed near the spindle 5 (FIG. 3) so as to keep the two wires separate. and to define the meeting point where the autotorsion takes place in an area which corresponds to the end of the action of the friction surface 5.
  • Such a wire can be used as it is and is perfectly stable.
  • each call cylinder 3 is repeated, but there is incorporated at the inlet of each call cylinder 3, a core wire 40 constituted by a polyester wire textured by false twist of 72 decitex - 33 strands.
  • wicks of wool are used (average length 62 millimeters), having an NM of 3 (3,300 decitex).
  • the drawing rate given in 4 is 35.
  • a self-twisted yarn is obtained, each of the constituents of which has a title of NM 60 (167 decitex).
  • the invention is not limited to the preceding exemplary embodiments, but it also covers all the variants thereof.
  • it is possible to obtain fancy yarns, by varying the feed and / or winding speeds of the yarn (s).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP80420086A 1979-07-09 1980-07-07 Procédé et dispositif pour l'obtention d'un fil présentant sur sa longueur des zones de torsion alternativement de sens inverse Expired EP0022421B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7918173 1979-07-09
FR7918173A FR2461040A1 (fr) 1979-07-09 1979-07-09 Procede et dispositif pour l'obtention d'un fil presentant sur sa longueur des zones de torsion alternativement de sens inverse

Publications (2)

Publication Number Publication Date
EP0022421A1 EP0022421A1 (fr) 1981-01-14
EP0022421B1 true EP0022421B1 (fr) 1982-12-15

Family

ID=9227823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80420086A Expired EP0022421B1 (fr) 1979-07-09 1980-07-07 Procédé et dispositif pour l'obtention d'un fil présentant sur sa longueur des zones de torsion alternativement de sens inverse

Country Status (6)

Country Link
US (1) US4351146A (enrdf_load_stackoverflow)
EP (1) EP0022421B1 (enrdf_load_stackoverflow)
JP (1) JPS5658015A (enrdf_load_stackoverflow)
AU (1) AU531289B2 (enrdf_load_stackoverflow)
DE (1) DE3061344D1 (enrdf_load_stackoverflow)
FR (1) FR2461040A1 (enrdf_load_stackoverflow)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128221A (en) 1981-01-31 1982-08-09 Toyota Central Res & Dev Lab Inc Air-twisting spinner
FR2507634B1 (fr) * 1981-06-12 1986-06-06 Baulip Fil Sarl Procede et appareil pour le filage de fils a ame
JPS588133A (ja) 1981-07-08 1983-01-18 Toray Ind Inc 結束紡績糸の製造方法
FR2520389A1 (fr) * 1982-01-26 1983-07-29 Asa Sa Dispositif pour etirer, condenser et transporter une meche de fibres lors d'une operation de filature
CH660888A5 (de) * 1982-05-07 1987-05-29 Barmag Barmer Maschf Friktionsfalschdraller.
FR2533593A1 (fr) * 1982-09-27 1984-03-30 Rhone Poulenc Fibres Produit textile type file de fibres, procede et dispositif pour sa fabrication
FR2544346B1 (fr) * 1983-04-14 1987-09-04 Baulip Fil Sarl Procede et dispositif pour le filage des files de fibres, comportant eventuellement au moins une ame
FR2560230B1 (fr) * 1984-02-24 1987-12-04 Asa Sa Procede pour l'obtention d'un file de fibres
CH665854A5 (de) * 1985-01-17 1988-06-15 Heberlein Hispano Sa Vorrichtung zum herstellen eines umwindegarnes.
FR2583783A1 (fr) * 1985-06-25 1986-12-26 Asa Sa Dispositif pour etirer, condenser et transporter une meche de fibres lors d'une operation de filature.
JPS6215331A (ja) * 1985-06-27 1987-01-23 Murata Mach Ltd 空気式紡績機
JPH0718067B2 (ja) * 1986-02-13 1995-03-01 ユニチカ株式会社 交互撚糸
DK323587D0 (da) * 1987-06-25 1987-06-25 Novo Industri As Protein
JPH01156519A (ja) * 1987-12-14 1989-06-20 Murata Mach Ltd 紡績方法及び紡績装置
JPH0653979B2 (ja) * 1988-08-09 1994-07-20 村田機械株式会社 糸の製造方法
DE3935705C2 (de) * 1988-10-26 1996-02-29 Murata Machinery Ltd Verfahren zur Herstellung eines aus gesponnenen Fäden bestehenden Mehrfachfadens sowie Vorrichtung zur Durchführung des Verfahrens
CA2066246A1 (en) * 1990-12-05 1992-06-06 Michael P. Chesterfield Cabled core and braided suture made therefrom
US5197649A (en) * 1991-10-29 1993-03-30 The Trustees Of Columbia University In The City Of New York Gastrointestinal endoscoptic stapler
US5275618A (en) * 1991-11-13 1994-01-04 United States Surgical Corporation Jet entangled suture yarn and method for making same
US6226972B1 (en) 1997-12-10 2001-05-08 Izumi International, Inc. Twisted union yarn manufacturing method and device
WO1999029941A1 (en) * 1997-12-10 1999-06-17 Izumi International, Inc. Alternate twisted yarn manufacturing method
DE19827870C1 (de) * 1998-06-23 1999-10-07 Saurer Allma Gmbh Verfahren zur Herstellung eines abwechselnd S- und Z-Drehungen aufweisenden Filamentgarnes
US7841161B2 (en) * 2007-07-02 2010-11-30 The Hong Kong Polytechnic University Method of industrially producing yarn at a lower twist multiplier for textile products
JP7558957B2 (ja) 2019-01-30 2024-10-01 ティーエムシー リミティッド 紡績糸、紡績糸を生成する方法及び装置、ならびに紡績糸によって形成される製品

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225533A (en) * 1961-10-19 1965-12-28 Commw Scient Ind Res Org Apparatus and process for forming yarns and other twisted assemblies
US3415048A (en) * 1965-04-07 1968-12-10 Rhodiaceta Ag Process for producing alternating twist
US3394538A (en) * 1966-01-14 1968-07-30 Celanese Corp Spun yarn
US3367095A (en) * 1967-06-30 1968-02-06 Du Pont Process and apparatus for making wrapped yarns
US3427647A (en) * 1968-03-19 1969-02-11 Du Pont Wrapped yarn product and process for preparing wrapped yarns
DE2240199A1 (de) * 1972-08-11 1974-02-21 Siemens Ag Nachrichtenkabel mit eine in abstaenden wechselnde verdrillungsrichtung aufweisenden verseileinheiten
FR2240506B1 (enrdf_load_stackoverflow) * 1973-08-07 1980-08-08 Siemens Ag
GB1502653A (en) * 1974-02-26 1978-03-01 Oki Electric Cable Conductor twisting apparatus and method for twisting a running wire conductor
JPS5830427B2 (ja) * 1974-06-28 1983-06-29 東洋紡績株式会社 捲纏紡積糸及びその製造方法
US4114358A (en) * 1977-05-06 1978-09-19 Toray Industries, Inc. Method and apparatus for commencing the yarn forming operation of a fasciated yarn
DE2804480C2 (de) * 1978-01-31 1982-09-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und Vorrichtung zum lagenweisen SZ-Verseilen von Verseilelementen um einen flexiblen Kernstrang

Also Published As

Publication number Publication date
EP0022421A1 (fr) 1981-01-14
FR2461040A1 (fr) 1981-01-30
FR2461040B1 (enrdf_load_stackoverflow) 1982-01-22
DE3061344D1 (en) 1983-01-20
US4351146A (en) 1982-09-28
JPS5658015A (en) 1981-05-20
AU531289B2 (en) 1983-08-18
AU6019180A (en) 1981-01-15
JPS638210B2 (enrdf_load_stackoverflow) 1988-02-22

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