EP0343204B1 - Procede de fabrication d'un fil texture elastique - Google Patents

Procede de fabrication d'un fil texture elastique Download PDF

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Publication number
EP0343204B1
EP0343204B1 EP88909283A EP88909283A EP0343204B1 EP 0343204 B1 EP0343204 B1 EP 0343204B1 EP 88909283 A EP88909283 A EP 88909283A EP 88909283 A EP88909283 A EP 88909283A EP 0343204 B1 EP0343204 B1 EP 0343204B1
Authority
EP
European Patent Office
Prior art keywords
yarn
tex
thread
bulk yarn
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.)
Expired - Lifetime
Application number
EP88909283A
Other languages
German (de)
English (en)
Other versions
EP0343204A1 (fr
Inventor
Rémy HUMBRECHT
Wolfgang Morgenstern
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 EP0343204A1 publication Critical patent/EP0343204A1/fr
Application granted granted 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
    • 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

Definitions

  • the invention relates to a method for producing a false twist textured elastic bulk yarn.
  • elastomer fibers made of both rubber and thermoplastic materials.
  • the elastane fibers which belong to the elastomer fibers, if they consist of multifilaments glued together, have poor textile properties.
  • the object of the invention is to provide a simple method which imparts textile and highly elastic properties to an unglued multifilament elastomer thread.
  • an elastomeric multifilament thread has been successfully textured.
  • the textured elastomer threads have a higher elongation and hardly any change in strength, and the course of the stretch is flatter and more regular than that of the smooth elastomer thread.
  • the textile character of the highly elastic bulk yarn produced has the advantage that it can be directly processed into a textile fabric.
  • the multifilament thread at a speed of at least 200 m / min and the backed-up thread which has been heat-set at 140 to 190 ° C., preferably at 160 to 190 ° C., at a tension in front of the texturing unit of 0.5 to 3.0 cN / tex, preferably 1.0 to 2.0 cN / tex to be textured using a friction disc unit.
  • the friction texturing is preferably carried out with a Positorq ® unit, in which the thread is delivered positively and thus has less tension after the unit.
  • the multifilament bulk yarn obtained is characterized by high elasticity and unglued, homogeneous fibrils.
  • polyether esters polyether esters, polyester esters, polyether ester amides and polyether amides have proven to be particularly suitable as the starting material for texturing.
  • Suitable as soft segments are the polyalkylene oxides or aliphatic polyesters made from dicarboxylic acids or their alkyl esters and diols, dimer fatty acid esters etc., and also polycaprolactones, and as hard segments polyalkylene terephthalates such as polyethylene and polybutylene terephthalate, which can additionally be modified with comonomers such as isophthalic acid, or polyamides.
  • the melting point of the bulk yarn according to the invention is at least 200 ° C.
  • the plain yarns are produced by melt spinning these polymers in a spin draw process.
  • the bulk yarn obtained is characterized by a degree of crimp of at least 40% and a crimp resistance of greater than 50%.
  • a multifilament thread 2 is guided at a throughput speed of 200 m / min over a thread guide 3 and a thread brake 4 and is twisted between a first delivery unit and a second delivery unit 9 by a friction twisting unit 8.
  • a contact heater 6 is connected downstream of the delivery mechanism 5. Both delivery plants 5, 9 work at the same speed.
  • a backing thread 7 is fixed in the contact heater 6 heated to 180 ° C. and then guided through the geometry of the friction disks of the friction thread unit 8. The positive delivery from the friction unit 8 enables working with a higher tension before and a lower tension after the friction twisting unit 8.
  • the textured thread 7 is wound onto a cylinder of the take-up spool 10 after the second delivery mechanism 9.
  • the initial module is calculated using the force expansion diagram (see FIG. 2 or 3).
  • Initial module [cN / tex] Force at 10% elongation [cN] Titer [tex] . 10th
  • the degree of curling and the curling resistance are determined with Texturat according to DIN 53840.
  • the remaining strain is obtained from the strain hysteresis.
  • the sample is stretched and relieved 5 times to 80% of its elongation at break without interruption. Then wait in the relaxed state for 2 minutes before stretching again.
  • the stretch at which the force absorption begins is called the permanent stretch.
  • the textured yarns obtained with good elastic properties are particularly suitable for stockings, elastic fabrics for sports and outerwear. But knitwear and knitwear of all kinds can also be produced with the yarn according to the invention.
  • the threads according to the invention can be used as cladding threads for the production of bi-elastic knitwear for sportswear. Alternating cladding is possible with polyamide, polyester, cotton or viscose as the basic thread. The relatively low melting point of the elastic bulk yarn can be used to advantage in the cladding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Socks And Pantyhose (AREA)
  • Knitting Of Fabric (AREA)

Abstract

En texturant par friction un fil multifilament élastomère, dont les fibres ne sont pas collées ensemble, on obtient un fil texturé élastique avec un degré de crêpage d'au moins 40 % et une permanence de crêpage d'au moins 50 %. Le fil texturé convient pour la fabrication de bas, mais aussi d'articles tissés, d'articles de bonneterie et tricots, d'articles de sport et de sur-vêtements.

Claims (2)

1. Procédé pour la fabrication d'un fil gonflant élastique texturé par fausse torsion, caractérisé en ce qu' un fil multifilament (2) filé dans la masse fondue est un polyesterester, un polyétherester, un polyétheresteramide ou un polyétheramide avec un module initial de 80 à 150 cN/tex et est retordu à une vitesse d'au moins 200 m/min et le retord (7) thermofixé de 140 à 190°C est texturé avec une prétension de 0.5 à 3.0 cN/tex à l'aide d'un aggrégat de disques à friction (8).
2. Fil gonflé issus d'un fil multifilament filé dans la masse fondue d'un polyesterester, d'un polyétherester, d'un polyétheresteramide ou d'un polyétheramide avec un modul initial de 80 à 150 cN/tex, caractérisé par un allongement restant inférieur à 25 % par rapport à la longueur du fil non allongé et par un degré de frisure supérieur à 40 % et par une stabilité de frisure supérieure à 50 %.
EP88909283A 1987-11-17 1988-11-11 Procede de fabrication d'un fil texture elastique Expired - Lifetime EP0343204B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4469/87 1987-11-17
CH446987 1987-11-17

Publications (2)

Publication Number Publication Date
EP0343204A1 EP0343204A1 (fr) 1989-11-29
EP0343204B1 true EP0343204B1 (fr) 1992-08-05

Family

ID=4276674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909283A Expired - Lifetime EP0343204B1 (fr) 1987-11-17 1988-11-11 Procede de fabrication d'un fil texture elastique

Country Status (6)

Country Link
EP (1) EP0343204B1 (fr)
JP (1) JP2889260B2 (fr)
KR (1) KR960014767B1 (fr)
DE (1) DE3873521D1 (fr)
DK (1) DK168452B1 (fr)
WO (1) WO1989004885A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313776A (en) * 1987-11-17 1994-05-24 Rhone-Poulenc Viscosuisse Sa Process for manufacturing an elastic bulk yarn
WO1994023101A1 (fr) * 1993-04-01 1994-10-13 Nylstar S.A. Fils textures en matiere synthetique, et surfaces textiles contenant un de ces fils
US20080135662A1 (en) * 2006-12-06 2008-06-12 Chang Jing C Melt-spun elastoester multifilament yarns

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1453979A (en) * 1973-03-16 1976-10-27 Du Pont Canada Composite yarns
JPS60167902A (ja) * 1984-02-07 1985-08-31 東洋紡績株式会社 フィット性にすぐれたパンテイストッキング
JPS61275432A (ja) * 1985-05-27 1986-12-05 株式会社クラレ 複合仮撚加工糸およびその製造法

Also Published As

Publication number Publication date
DK350589A (da) 1989-07-14
DK168452B1 (da) 1994-03-28
JPH02502201A (ja) 1990-07-19
KR890701811A (ko) 1989-12-21
WO1989004885A1 (fr) 1989-06-01
DE3873521D1 (de) 1992-09-10
KR960014767B1 (ko) 1996-10-19
DK350589D0 (da) 1989-07-14
EP0343204A1 (fr) 1989-11-29
JP2889260B2 (ja) 1999-05-10

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