EP1111104A1 - Procédé permettant d'imprimer alternativement une torsion en "S" ou en "Z" à un fil - Google Patents

Procédé permettant d'imprimer alternativement une torsion en "S" ou en "Z" à un fil Download PDF

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Publication number
EP1111104A1
EP1111104A1 EP00122740A EP00122740A EP1111104A1 EP 1111104 A1 EP1111104 A1 EP 1111104A1 EP 00122740 A EP00122740 A EP 00122740A EP 00122740 A EP00122740 A EP 00122740A EP 1111104 A1 EP1111104 A1 EP 1111104A1
Authority
EP
European Patent Office
Prior art keywords
yarn
twist
twists
stops
stop
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.)
Withdrawn
Application number
EP00122740A
Other languages
German (de)
English (en)
Inventor
Markus Dr. Osterloh
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.)
Saurer Allma GmbH
Original Assignee
Saurer Allma GmbH
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 Saurer Allma GmbH filed Critical Saurer Allma GmbH
Publication of EP1111104A1 publication Critical patent/EP1111104A1/fr
Withdrawn legal-status Critical Current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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting

Definitions

  • the invention relates to a method for producing an alternating S and Z rotations having filament yarn, in which at least one yarn between two at a distance arranged twist stops and moves the yarn through at least one Wrong turning device arranged between the swirl stops alternating S and Z rotations be issued by means of one of the false twisting devices in the yarn running direction downstream fixing device are fixed, the behind in the yarn running direction Wrong twist stop provided synchronized with the yarn and moved in spin twisting engagement with the yarn is held until at least the twist reversal point is fixed in the yarn and that at least one other, the aforementioned moving swirl stop at a distance subsequent swirl stop in swirl-stopping engagement with the Bring yarn and moved along with this before the yarn through the Incorrect rotation is given an opposite rotation.
  • the invention is therefore based on the object in the method described in to optimize in different ways.
  • This object is achieved in that one or several movable air nozzles are used, by alternating them in opposite directions tangential air currents acting on the yarn alternating S and Z rotations are issued.
  • nozzles Due to their relatively small geometric dimensions, nozzles reduce the distance between the rotation and the swirl stop located behind it, and increase the length ratio L 0 / L 1 while the dimensions of the machine are otherwise the same (see FIGS. 2 and 5). As a result, both the achievable height of rotation and the production speed can be increased.
  • the rotation can be given either by a nozzle with changing torque direction or two successive nozzles, each with a direction of rotation. Due to the use of nozzles, no moving parts are required, so that the switching frequency does not represent a limitation in the production speed and there is no significant wear.
  • the method described at the outset can be optimized according to the invention be that the yarn is stretched in the area before the first twist stop becomes.
  • the Stretching can be integrated into the process flow. This way it can be cheap Raw material, pre-drawn filament yarn (POY or LOY), are submitted to the process. In this stretching zone, which can be cold or warm, many properties for the finished yarn can be influenced.
  • the integration saves an additional step, the machine for this and the storage costs for expensive Template material.
  • Fig. 1 the structure of the finished filament yarn is shown schematically. This has alternating yarn sections 1a with S twist and 1b with Z twist. Between two yarn sections 1a, 1b with opposite twists are the reversal points 2 of rotation, the extent of which in the longitudinal direction can be kept small with the method according to the invention, but need not be. The lengths of the yarn sections 1a, 1b can vary. Smooth and textured filament yarns are to be used as the original materials. 2 shows a schematic representation of the process sequence.
  • the yarn 1 ' is moved in the yarn running direction C from A to B.
  • the yarn reaches the feed mechanism 6, which can advantageously be designed directly as a winding unit, as a finished filament yarn 1 with alternating S and Z twists, as shown in FIG. 1.
  • a first swirl stop 7 is arranged in a stationary manner and can preferably be designed as a delivery mechanism or thread brake.
  • at least one nozzle 8 is arranged as a false twist device behind the stationary twist stop 7, with which it is possible to give the twine 1 'alternately S twists and Z twists.
  • Behind the false twisting device 8 a twist stop device 9 with a plurality of twist stops 3 movable in the yarn running direction C is provided.
  • Each swirl stop 3 is formed by at least two interacting clamping surfaces 3a, 3b. Their extension in the longitudinal direction depends on the later use. Reversal points with minimal expansion do not appear as defects in the finished textile surface (fabric), longer reversal points can produce desired effects in the textile surface.
  • the swirl stops 3 can be arranged on or on endless driven belts 10a and 10b, as a result of which they can be returned. Another transport device for the swirl stops 3 is also possible.
  • the distance between the movable swirl stops 3 is designated L 2 .
  • the distances L 2 between the movable swirl stops 3 can vary or the connection between the movable swirl stops 3 and the transport device 10a, 10b can be made switchable.
  • the swirl stops 3 are moved through a fixing device 11, which consists of a heating zone 4 and a cooling zone 5 connected downstream.
  • the distance L 2 of the twist stops is smaller than the length L 3 of the fixing device 11. In this way it is ensured that the twists 1 'alternately reversed and provisionally fixed between two twist stops 3 are largely thermally fixed when the finished yarn 1 leaves the fixing device 11.
  • the twist stops 3 should come into twist-stopping engagement with the yarn 1 'as close as possible to the false twisting device 8 and then be moved in synchronism with the yarn 1'. With each new intervention of a swirl stop, the direction of the rotation can be changed by the bottle rotating device 8. Between two twist stops 3, twine sections 1a with S twist and twine sections 1b with Z twist are alternately provisionally "fixed” and twine 1 'is first moved through heating zone 4 and then through cooling zone 5 in the twisted state. Only after the yarn has cooled below a certain temperature is the clamping released when it leaves the cooling zone 5.
  • this direction of rotation should only be reversed when the following twist stop is in engagement with the yarn 1 '.
  • the next swirl stop should be brought up to the wrong turning device 8 in order to keep the distance L 1 as small as possible.
  • the yarn section located in area L 1 must first be opened again and twisted in the opposite direction. The shorter the distance at the beginning of the reversal of the direction of rotation, the more effectively the method works, as shown in FIG. 4.
  • FIG. 3 shows the same procedure when using two in succession arranged nozzles 8 and 8 'for rotation.
  • one nozzle for one Direction of rotation used.
  • the nozzles can do better for their function and minimal Energy consumption can be optimized.
  • the distance L 0 and L 1 shows the theoretical relationship of the distances L 0 and L 1 to the amount of rotation in front of and behind the wrong turning device.
  • the advantage of using nozzles compared to the wrong turning device of the clamp type is clearly visible here.
  • the distance L 1 can be approx. 20 mm.
  • a typical value for clamp type false turning devices is 120 mm.
  • the undrawn or pre-drawn yarn 1 '' is drawn between the delivery units 7 and 12 and then fed to the process of wrong rotation granting.
  • the stretching can be done warm in a heating zone 13 or cold. With the help of the parameters set here the later properties in yarn 1 can be directly influenced.
  • the upstream one The stretching zone is independent of the type of false twist device.
  • Fig. 6 shows a swirl stop that does not require any moving parts.
  • the yarn will clamped between the clamping surfaces 14 and 14 '.
  • the clamping surface 14, 14 'itself can be linear or flat.
  • the force to clamp the thread becomes generated solely by the spring force of the clamping elements used.
  • the yarn can have a Component of the thread tension between the clamping surfaces 14, 14 'or a special switching device the clamping effect of the same when threading and unthreading cancel.
  • the sketch shows only an exemplary embodiment of such clamping elements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP00122740A 1999-12-24 2000-10-19 Procédé permettant d'imprimer alternativement une torsion en "S" ou en "Z" à un fil Withdrawn EP1111104A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19963139 1999-12-24
DE1999163139 DE19963139C1 (de) 1999-12-24 1999-12-24 Verfahren zur Herstellung eines abwechselnd S- und Z-Drehungen aufweisenden Filamentgarnes

Publications (1)

Publication Number Publication Date
EP1111104A1 true EP1111104A1 (fr) 2001-06-27

Family

ID=7934596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00122740A Withdrawn EP1111104A1 (fr) 1999-12-24 2000-10-19 Procédé permettant d'imprimer alternativement une torsion en "S" ou en "Z" à un fil

Country Status (3)

Country Link
EP (1) EP1111104A1 (fr)
CN (1) CN1301887A (fr)
DE (1) DE19963139C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102605528A (zh) * 2011-12-19 2012-07-25 无锡市纳溪迩服饰有限公司 一种正反捻闪光针织面料的加工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523428A (en) * 1980-11-21 1985-06-18 Toray Industries, Inc. Process for manufacturing textured multifilament yarn having alternating twist
DE3931110A1 (de) * 1988-09-16 1990-03-22 Murata Machinery Ltd Verfahren zum herstellen eines fadens mit verschiedenen gedrehten bereichen
DE19827870C1 (de) * 1998-06-23 1999-10-07 Saurer Allma Gmbh Verfahren zur Herstellung eines abwechselnd S- und Z-Drehungen aufweisenden Filamentgarnes
EP1054087A1 (fr) * 1999-05-20 2000-11-22 Schärer Schweiter Mettler AG Dispositif pour combiner des fils par entrelacement par jet d'air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523428A (en) * 1980-11-21 1985-06-18 Toray Industries, Inc. Process for manufacturing textured multifilament yarn having alternating twist
DE3931110A1 (de) * 1988-09-16 1990-03-22 Murata Machinery Ltd Verfahren zum herstellen eines fadens mit verschiedenen gedrehten bereichen
DE19827870C1 (de) * 1998-06-23 1999-10-07 Saurer Allma Gmbh Verfahren zur Herstellung eines abwechselnd S- und Z-Drehungen aufweisenden Filamentgarnes
EP1054087A1 (fr) * 1999-05-20 2000-11-22 Schärer Schweiter Mettler AG Dispositif pour combiner des fils par entrelacement par jet d'air

Also Published As

Publication number Publication date
DE19963139C1 (de) 2001-04-05
CN1301887A (zh) 2001-07-04

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