EP0323986B1 - Procede de pre-entrelacement d'un fil alimenteur synthetique multifilament et fil ainsi produit - Google Patents

Procede de pre-entrelacement d'un fil alimenteur synthetique multifilament et fil ainsi produit Download PDF

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Publication number
EP0323986B1
EP0323986B1 EP19880905648 EP88905648A EP0323986B1 EP 0323986 B1 EP0323986 B1 EP 0323986B1 EP 19880905648 EP19880905648 EP 19880905648 EP 88905648 A EP88905648 A EP 88905648A EP 0323986 B1 EP0323986 B1 EP 0323986B1
Authority
EP
European Patent Office
Prior art keywords
yarn
texturing
entangling
swirling
textured
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.)
Revoked
Application number
EP19880905648
Other languages
German (de)
English (en)
Other versions
EP0323986A1 (fr
Inventor
Klaus Fischer
Rolf Heider
Fritz Schwarz
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.)
Viscosuisse SA
Original Assignee
Rhone Poulenc Viscosuisse 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
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Application filed by Rhone Poulenc Viscosuisse SA filed Critical Rhone Poulenc Viscosuisse SA
Publication of EP0323986A1 publication Critical patent/EP0323986A1/fr
Application granted granted Critical
Publication of EP0323986B1 publication Critical patent/EP0323986B1/fr
Anticipated expiration legal-status Critical
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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
    • D02G1/0286—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 characterised by the use of certain filaments, fibres or yarns
    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch

Definitions

  • the invention relates to a method for pre-intermingling a partially drawn polyester POY, original yarns for the drawing, texturing and / or drawing texturing process by means of an air intermingling nozzle for producing a textile yarn or plain yarn for textile fabrics and the yarn produced by the process.
  • a swirling process is known, according to which an undrawn or partially stretched original yarn, for a false twist texturing process, is swirled weakly at an air pressure of approximately 0.5 bar, in order to avoid the actual texturing process due to too intensive swirling points in the form of knots disturb.
  • the knots created in the original yarn must dissolve again during the further processing of the yarns in order to avoid defects.
  • the object of the known method is to reduce thread breaks, particularly in the case of fine-fibrillated yarns. After texturing, these are yarns then swirl again, whereby the thread closure of the textured yarn produced here has the same task as for the original yarn, namely the improvement or the guarantee of further processability.
  • the swirling points according to the known method have the disadvantage that they disrupt the uniformity of the product image, especially in the case of fine titers. So far, it has not been possible to weave sufficiently interwoven textured yarns for a smooth bobbin run-off without giving up an uneasy product appearance.
  • a method for the simultaneous stretch texturing of partially stretched polyamide yarns is also known, with swirling using an air swirling nozzle before entering the texturing zone (FR-A-22 96 710).
  • the swirling takes place with an air pressure of at least 2.5 bar, 100-1000 swirls / m, preferably more than 300 swirls, being aimed for.
  • a strong intermingling in the master yarn has the disadvantage, however, that with polyester POY the knots are only partially dissolved during texturing. The result is an insufficient uniformity of the crimp, which leads to a clear drawing in the tissue.
  • the object of the invention is to provide a method which ensures good thread closure in a textured or stretched filament yarn, ensures problem-free bobbin flow during further processing and enables a fabric which is as free of drawings as possible.
  • the invention serving to achieve the object is characterized in that the feed yarn is swirled at an air pressure of 0.5 to 2.0 bar.
  • the intermingling takes place before the yarn enters the texturing device at an air pressure in the nozzle body of 0.5 to 2.0 bar.
  • the pre-interlaced yarn which is both a textured yarn and a plain yarn can have a "continuously" swirling characteristic.
  • continuous swirling denotes a type of swirling that has no pronounced swirling points, in contrast to the known swirling, for which clearly visible nodes are characteristic at periodic intervals.
  • the number of fluff also reaches a minimum of approximately 80 fluff per 100,000 m of yarn length and provides a drawing-free product image in a fabric.
  • Fluff means broken filaments and / or thread elements protruding from the thread core.
  • the fluff was measured using a TORAY measuring head, which works on the electro-optical principle.
  • the test speed was 1000 m / min, the tested yarn length per variant 1.6 x 105 m.
  • a polyester POY with a titer of nominally dtex 100 f 72 was used as the feed yarn.
  • Closed 2-hole nozzles for example with an air duct diameter of 0.7 mm, are best suited as interlacing nozzles.
  • other commercially available swirling nozzles can also be used, which ensure a constant pressure in the stressed area.
  • the texturing was carried out at 500 m / min on an FK6-CF texturing machine from BARMAG AG.
  • the intermingling increases continuously to 65 knots / m at an air pressure of 2.5 bar.
  • the number of knots is far below that of a yarn normally intermingled at 2.5 bar, without the bobbin winding deteriorating.
  • the swirling takes place in a known manner following the texturing before winding.
  • a polyester POY with a titer of nominally dtex 167 f 36 octolobal was used as the original yarn by the method according to the invention.
  • the test results are summarized in Table 2. The same tendencies can be seen in the bobbin winding behavior, the number of knots and the fabric image.
  • the textured yarn produced by the method according to the invention results in a perfect fabric appearance of the fabric, since obviously only a sufficient dissolution of the applied swirling points occurs during the texturing process that the remaining swirling comes close to a so-called "continuous" swirling.
  • An advantage of the quasi-continuous interlacing is above all the low drawing in the fabric with at the same time sufficient thread closure for perfect processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Woven Fabrics (AREA)

Abstract

Dans un procédé de pré-retordage d'un fil synthétique multifilament, le fil est retordu avec une pression de 0,5 à 3,0 bar avant de pénétrer dans les régions d'étirage, de texturation et/ou de texturation par étirage, de façon à permettre une transformation ultérieure sans problème du fil en un tissu textile sans motif sans autre opération de retordage après les opérations de texturation ou d'étirage.

Claims (2)

  1. Procédé pour le pré-entrelacement d'un fil alimenteur en polyester-POY partiellement étiré pour le procédé d'étirage, de texturation et/ou d'étirage et de texturation intégré au moyen d'une buse d'entrelacement à air pour la fabrication d'un fil texturé ou d'un fil plat pour des surfaces textiles, caractérisé en ce que le fil alimenteur en polyester est entrelacé avec une pression d'air de 0.5 à 2.0 bar.
  2. Fil entrelacé à l'air issu d'un polyester-POY caractérisé par un nombre de bouts de fil inférieur à 85 pour 100 000 m de fil et par un nombre maximal de noeuds de 51 par m.
EP19880905648 1987-07-17 1988-07-08 Procede de pre-entrelacement d'un fil alimenteur synthetique multifilament et fil ainsi produit Revoked EP0323986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH272387 1987-07-17
CH2723/87 1987-07-17

Publications (2)

Publication Number Publication Date
EP0323986A1 EP0323986A1 (fr) 1989-07-19
EP0323986B1 true EP0323986B1 (fr) 1993-03-10

Family

ID=4240156

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880905648 Revoked EP0323986B1 (fr) 1987-07-17 1988-07-08 Procede de pre-entrelacement d'un fil alimenteur synthetique multifilament et fil ainsi produit

Country Status (6)

Country Link
EP (1) EP0323986B1 (fr)
JP (1) JPH02500375A (fr)
BR (1) BR8807133A (fr)
CA (1) CA1313753C (fr)
DE (1) DE3879156D1 (fr)
WO (1) WO1989000620A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324752C2 (de) * 1993-07-23 1996-08-22 Hoechst Ag Multifilamentglattgarn mit geringer Öffnungsneigung und gutem Fadenschluß, Verfahren zur Herstellung von Multifilamentglattgarnen und dessen Verwendung
TWI294926B (en) 2002-04-25 2008-03-21 Teijin Fibers Ltd Polyester fine false twisting textured yarn, and methods for producing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500229B2 (de) 1975-01-04 1978-01-19 Bayer Ag, 5090 Leverkusen Verfahren zur simultanen strecktexturierung von synthetischen garnen
EP0150301A2 (fr) * 1983-12-01 1985-08-07 b a r m a g Barmer Maschinenfabrik Aktiengesellschaft Dispositif d'étirage de faisceaux de fils synthétiques
ES2013712B3 (es) * 1985-11-20 1990-06-01 Schweizerische Viscose Metodo de produccion de un hilo en tren de poliester - poy

Also Published As

Publication number Publication date
JPH02500375A (ja) 1990-02-08
DE3879156D1 (de) 1993-04-15
BR8807133A (pt) 1989-10-31
CA1313753C (fr) 1993-02-23
WO1989000620A1 (fr) 1989-01-26
EP0323986A1 (fr) 1989-07-19

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