EP0374992B1 - Process for the preparation of an effect yarn - Google Patents
Process for the preparation of an effect yarn Download PDFInfo
- Publication number
- EP0374992B1 EP0374992B1 EP19890202997 EP89202997A EP0374992B1 EP 0374992 B1 EP0374992 B1 EP 0374992B1 EP 19890202997 EP19890202997 EP 19890202997 EP 89202997 A EP89202997 A EP 89202997A EP 0374992 B1 EP0374992 B1 EP 0374992B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyamide
- poy
- polyester
- 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
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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 invention relates to a method for producing a co-textured bicomponent fancy yarn for an elastic fabric made of a polyester POY and a polyamide POY, which are drawn in a drawing zone with the same drawing ratio before texturing, and to a fancy yarn produced by the method.
- Fancy yarns are known. Sheets made from them can contain elastic two-component threads both in the warp and in the weft or in both directions. Textile bicomponent threads made of nylon and polyester are described in EP-B-0 044 221 and are extensively appreciated there in the prior art. All known nylon / polyester bicomponent filaments have in common that the two polymers are spun through the same spinneret, either that the two components stick together side by side or that they are in the form of a core-shell structure. The different shrinkage forces of both components are used to achieve the crimp effect.
- GB-A-2 021 652 describes the joint stretching of a polyester POY with a polyamide POY, the POY thread remaining largely undrawn. Both threads are swirled around before a second heater to achieve a uniform mixing for the two-color effect.
- EP-A-0 037 118 also describes a method for hot drawing POY and LOY yarns together after they have been intermingled before drawing.
- the object of the invention is to provide a method for the simple and economical production of fancy yarn for producing elastic flat structures, as well as a fancy yarn produced by this method.
- the object is achieved according to the invention in that the polyester POY and the polyamide POY are cold stretched simultaneously in a stretching zone and with the same stretching ratio of 1: 1.3 to 1: 1.6. It is essential that the stretching takes place cold in front of the texturing zone.
- the main advantage of the method according to the invention is that stretching and texturing take place sequentially in a single operation. Optimal productivity is achieved by texturing both filaments together using a spindle to make a fancy yarn. The resulting uniform mixing of the filaments also results in better processability. This is made possible by the fact that the carrier thread has a particularly high strength.
- the result is a polyamide filament with a strength of around 50 cN / tex.
- the polyester component consists of partially broken filaments or knobs, since the optimal stretching tension cannot build up due to the stretching and is therefore subject to greater mechanical stress. It gives the overall thread the desired effect.
- the two-tone in an elastic textile fabric has a very even distribution.
- the fabrics have a soft and dry feel due to the knobs and protruding fibrils.
- the single figure shows a schematic of the stretch texturing method according to the invention.
- a polyester POY is drawn off from a roll 1 and a polyamide POY from a roll 2 and passed together as only partially drawn filaments 3 and 3 'via a feed unit 4.
- the combined filaments are drawn at the same drawing ratio by means of a drawing device 6 over a drawing pin 5.
- the result is a stretched thread 7, which passes through a heater 8.
- the thread 7 is textured by means of a driving spindle 9 and fed to a bobbin 11 as fancy yarn via a delivery mechanism 10.
- the overstretched polyamide 66 thread is greatly improved in strength, namely by about 20% compared to the prior art and takes on the role of a carrier thread. Fibril breaks occur on the undrawn polyester thread, which slide into desired knobs during processing. The pimples and the protruding fibrils result in a soft and dry grip on the resulting fabric.
- the jointly textured, undyed effect thread shows two-tone in the textile fabric after dyeing. It can be entangled, but can also be used as a weft in weaving.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines co-texturierten bikomponenten Effektgarnes für ein elastisches Flächengebilde aus einem Polyester POY und einem Polyamid POY, welche in einer Streckzone bei gleichem Verstreckungsverhältnis vor der Texturierung verstreckt werden, sowie ein nach dem Verfahren hergestelltes Effektgarn.The invention relates to a method for producing a co-textured bicomponent fancy yarn for an elastic fabric made of a polyester POY and a polyamide POY, which are drawn in a drawing zone with the same drawing ratio before texturing, and to a fancy yarn produced by the method.
Effektgarne sind bekannt. Flächengebilde daraus können elastische Zweikomponentfäden sowohl in der Kette als auch im Schuss oder in beiden Richtungen enthalten. Textile Bikomponentfäden aus Nylon und Polyester werden in der EP-B-0 044 221 beschrieben und sind dort im Stand der Technik ausführlich gewürdigt. Allen bekannten Nylon/Polyester Bikomponentfilamenten ist gemeinsam, dass die beiden Polymere durch eine gleiche Spinndüse gesponnen werden, entweder dass beide Komponenten Seite an Seite aneinander kleben oder als Kern-Mantel-Stuktur vorliegen. Zur Erzielung des Kräuseleffektes wird die unterschiedliche Schrumpfkraft beider Komponenten ausgenützt.Fancy yarns are known. Sheets made from them can contain elastic two-component threads both in the warp and in the weft or in both directions. Textile bicomponent threads made of nylon and polyester are described in EP-B-0 044 221 and are extensively appreciated there in the prior art. All known nylon / polyester bicomponent filaments have in common that the two polymers are spun through the same spinneret, either that the two components stick together side by side or that they are in the form of a core-shell structure. The different shrinkage forces of both components are used to achieve the crimp effect.
In der GB-A-2 021 652 wird die gemeinsame Verstreckung eines Polyester POY mit einem Polyamid-POY beschrieben, wobei der POY-Faden stark unterverstreckt bleibt. Beide Fäden werden vor einer zweiten Heizung verwirbelt, um eine gleichmässige Vermischung für den Zweifarbeneffekt zu erzielen.GB-A-2 021 652 describes the joint stretching of a polyester POY with a polyamide POY, the POY thread remaining largely undrawn. Both threads are swirled around before a second heater to achieve a uniform mixing for the two-color effect.
Auch die EP-A-0 037 118 beschreibt ein Verfahren zum gemeinsamen Heissverstrecken von POY und LOY Garnen, nachdem diese vor dem Verstrecken verwirbelt wurden.EP-A-0 037 118 also describes a method for hot drawing POY and LOY yarns together after they have been intermingled before drawing.
Es ist aber auch bekannt, Polyamidfilamente und Polyesterfilamente, welche durch Schmelzspinnen und anschliessendes Verstrecken bei unterschiedlichen Streckverhältnissen hergestellt werden, miteinander zu Texturieren. Auch hier resultiert ein Effektgarn. Das bekannte Verfahren hat jedoch den Nachteil, dass bei der Herstellung eines solchen Garns mehrere aufwendige Verfahrensstufen durchlaufen werden, wodurch die Wirtschaftlichkeit der Herstellung in Frage gestellt ist.However, it is also known to texturize polyamide filaments and polyester filaments, which are produced by melt spinning and subsequent drawing at different drawing ratios. A fancy yarn also results here. However, the known method has the disadvantage that in the production of such a yarn, several complex process steps are carried out, so that the economics of production are questioned.
Aufgabe der Erfindung ist es, ein Verfahren zur einfachen und wirtschaftlichen Herstellung eines Effektgarnes zur Erzeugung von elastischen Flächengebilden zur Verfügung zu stellen, sowie ein nach diesem Verfahren hergestelltes Effektgarn.The object of the invention is to provide a method for the simple and economical production of fancy yarn for producing elastic flat structures, as well as a fancy yarn produced by this method.
Die Aufgabe wird erfindungsgemäss nach Anspruch 1 dadurch gelöst, dass das Polyester-POY und das Polyamid-POY in einer Streckzone simultan und bei gleichem Streckverhältnis von 1 : 1,3 bis 1 : 1,6 kalt verstreckt werden. Dabei ist es wesentlich, dass die Verstreckung kalt vor der Texturierzone erfolgt.The object is achieved according to the invention in that the polyester POY and the polyamide POY are cold stretched simultaneously in a stretching zone and with the same stretching ratio of 1: 1.3 to 1: 1.6. It is essential that the stretching takes place cold in front of the texturing zone.
Der wesentliche Vorteil des erfindungsgemässen Verfahrens ist darin zu sehen, dass Verstreckung und Texturierung sequentiel in einem einzigen Arbeitsgang erfolgen. Es wird eine optimale Produktivität dadurch erzielt, dass beide Filamente gemeinsam durch eine Spindel zu einem Effektgarn texturiert werden. Durch die resultierende gleichmässige Mischung der Filamente wird auch eine bessere Verarbeitbarkeit erzielt. Dies wird dadurch ermöglicht, dass der Trägerfaden eine besonders hohe Festigkeit aufweist.The main advantage of the method according to the invention is that stretching and texturing take place sequentially in a single operation. Optimal productivity is achieved by texturing both filaments together using a spindle to make a fancy yarn. The resulting uniform mixing of the filaments also results in better processability. This is made possible by the fact that the carrier thread has a particularly high strength.
Es ist zweckmässig das gemeinsame Verstreckungsverhältnis zwischen 1 : 1,3 und 1 : 1,6 zu wählen. Ein bevorzugtes Verstreckungsverhältnis liegt um etwa 1 : 1,5.It is advisable to choose the common draw ratio between 1: 1.3 and 1: 1.6. A preferred draw ratio is about 1: 1.5.
Hierbei resultiert als Trägerfaden das Polyamidfilament mit einer Festigkeit von rund 50 cN/tex.The result is a polyamide filament with a strength of around 50 cN / tex.
Die Polyesterkomponente besteht aus teilweise gebrochenen Filamenten oder Noppen, da aufgrund der Unterverstreckung sich keine optimale Texturierspannung aufbauen kann und daher mechanisch stärker beansprucht wird. Sie verleiht dem Gesamtfaden den gewünschten Effekt.The polyester component consists of partially broken filaments or knobs, since the optimal stretching tension cannot build up due to the stretching and is therefore subject to greater mechanical stress. It gives the overall thread the desired effect.
Die Zweifarbigkeit in einem elastischen textilen Flächengebilde weist eine sehr gleichmässige Verteilung auf. Die Flächengebilde besitzen bedingt durch Noppen und abstehenden Fibrillen einen weichen und trockenen Griff.The two-tone in an elastic textile fabric has a very even distribution. The fabrics have a soft and dry feel due to the knobs and protruding fibrils.
Die einzige Figur zeigt ein Schema des erfindungsgemässen Streck-Texturier-Verfahrens.The single figure shows a schematic of the stretch texturing method according to the invention.
Ein Polyester-POY wird von einem Wickel 1 und ein Polyamid-POY von einem Wickel 2 abgezogen und gemeinsam als nur teilverstreckte Filamente 3 und 3′ über ein Lieferwerk 4 geführt. Die kombinierten Filamente werden gleichzeitig bei gleichem Verstreckungsverhältnis mittels eines Streckwerkes 6 über einen Streckstift 5 verstreckt. Es resultiert ein verstreckter Faden 7, welcher eine Heizung 8 durchläuft. Der Faden 7 wird mittels einer Mitnehmerspindel 9 texturiert und über ein Lieferwerk 10 einer Spule 11 als Effektgarn zugeführt.A polyester POY is drawn off from a
Die beiden Fäden
Polyamid 66-POY gesponnen bei 4200 m/min, dtex 100 f 34 (nom 78 f 34) mit Dehnung 75 % und Festigkeit 36 cN/tex
und
Polyester-POY gesponnen bei 3100 m/min, dtex 130 f 36 (nom 78 f 36) mit Dehnung 165 % und Festigkeit 21 cN/tex
werden auf der Mitnehmertexturiermaschine Heberlein FZ 27 mit folgenden Bedingungen texturiert:
Polyamide 66-POY spun at 4200 m / min, dtex 100 f 34 (nom 78 f 34) with elongation 75% and strength 36 cN / tex
and
Polyester POY spun at 3100 m / min, dtex 130 f 36 (nom 78 f 36) with elongation 165% and strength 21 cN / tex
are textured on the Heberlein FZ 27 drive texturing machine with the following conditions:
Die beiden simultan vorverstreckten POY-Fäden werden gemeinsam durch dieselbe Spindel (FBV/06, 2,0 mm ⌀) gefahren. Resultate des Gesamtfadens:
Mit der obigen Grundeinstellung wurden diverse Modifikationen gefahren, wobei folgende Parameter geändert wurden:
In der Streckzone kann auch ohne Streckstift gearbeitet werden, womit zwar der Noppeneffekt verbessert wird, aber dann ein schlechterer Texturierlauf in Kauf genommen werden muss.It is also possible to work without a stylus in the drafting zone, which improves the pimple effect, but then a poorer texturing run has to be accepted.
Mit der gewählten Verstreckung wird der überverstreckte Polyamid 66-Faden in der Festigkeit stark verbessert, und zwar um etwa 20 % gegenüber dem Stand der Technik und übernimmt die Rolle eines Trägerfadens. Am unterverstreckten Polyesterfaden treten Fibrillenbrüche auf, welche sich im Laufe der Verarbeitung zu erwünschten Noppen aufschieben. Die Noppigkeit und die abstehenden Fibrillen ergeben einen weichen und trockenen Griff des resultierenden Flächengebildes.With the selected stretching, the overstretched polyamide 66 thread is greatly improved in strength, namely by about 20% compared to the prior art and takes on the role of a carrier thread. Fibril breaks occur on the undrawn polyester thread, which slide into desired knobs during processing. The pimples and the protruding fibrils result in a soft and dry grip on the resulting fabric.
Der gemeinsam texturierte, ungefärbte Effektfaden zeigt im textilen Flächengebilde nach dem Färben Zweifarbigkeit. Er kann verstrickt, aber auch als Schussfaden in der Weberei eingesetzt werden.The jointly textured, undyed effect thread shows two-tone in the textile fabric after dyeing. It can be entangled, but can also be used as a weft in weaving.
Claims (3)
- A process for preparing a co-textured bicomponent fancy yarn for a stretch fabric from a polyester POY(1) and a polyamide POY(2) which before texturing are drawn in a drawing zone to the same draw ratio and then textured during their passage through a heater (8), and wound up, characterized in that the polyester POY and the polyamide POY are conjointly cold-drawn by means of a snubbing pin (5) to a draw ratio from 1:1.3 to 1:1.6, underdrawing the polyester and overdrawing the polyamide.
- A bicomponent co-textured fancy yarn formed from a polyester filament yarn and a polyamide filament yarn, characterized in that the polyester filament yarn includes some broken filaments and neps and has, at one and the same time, a tenacity >30 cN/tex, an elongation of 21.5-28.3% and a crimp stability of >90.6%.
- A fancy yarn according to Claim 2, characterized in that the polyamide filament yarn has a tenacity >50 cN/tex.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4499/88 | 1988-12-05 | ||
CH449988 | 1988-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0374992A1 EP0374992A1 (en) | 1990-06-27 |
EP0374992B1 true EP0374992B1 (en) | 1994-04-13 |
Family
ID=4277247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19890202997 Expired - Lifetime EP0374992B1 (en) | 1988-12-05 | 1989-11-27 | Process for the preparation of an effect yarn |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0374992B1 (en) |
DE (1) | DE58907463D1 (en) |
ES (1) | ES2052891T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2156498B1 (en) * | 1998-09-07 | 2002-01-16 | Solteulat S L | PROCEDURE FOR THE ELABORATION OF TEXTILE FABRIC. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4164117A (en) * | 1976-04-07 | 1979-08-14 | Fiber Industries, Inc. | Method for making simulated spun-like ingrain yarn |
AU521173B2 (en) * | 1978-02-27 | 1982-03-18 | Phillips Petroleum Co. | Multifilament yarn |
GB2021652B (en) * | 1978-05-04 | 1982-07-28 | Du Pont Canada | Heather yarns |
EP0037118B1 (en) * | 1980-04-02 | 1984-09-26 | Teijin Limited | A process for manufacturing a bulky flat yarn |
JPS5721526A (en) * | 1980-07-15 | 1982-02-04 | Teijin Ltd | Polyester spun like processed yarn and method |
-
1989
- 1989-11-27 DE DE58907463T patent/DE58907463D1/en not_active Expired - Fee Related
- 1989-11-27 ES ES89202997T patent/ES2052891T3/en not_active Expired - Lifetime
- 1989-11-27 EP EP19890202997 patent/EP0374992B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0374992A1 (en) | 1990-06-27 |
DE58907463D1 (en) | 1994-05-19 |
ES2052891T3 (en) | 1994-07-16 |
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