EP0463635B1 - Yarn, in particular a sewing yarn - Google Patents

Yarn, in particular a sewing yarn Download PDF

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Publication number
EP0463635B1
EP0463635B1 EP91112663A EP91112663A EP0463635B1 EP 0463635 B1 EP0463635 B1 EP 0463635B1 EP 91112663 A EP91112663 A EP 91112663A EP 91112663 A EP91112663 A EP 91112663A EP 0463635 B1 EP0463635 B1 EP 0463635B1
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EP
European Patent Office
Prior art keywords
yarn
dtex
component
tex
multifilament
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.)
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EP91112663A
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German (de)
French (fr)
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EP0463635A1 (en
Inventor
Karl Dipl.-Ing. Greifeneder
Kurt Dipl.-Ing. Truckenmüller
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Amann and Soehne GmbH and Co KG
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Amann and Soehne GmbH and Co KG
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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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/164—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam in the presence of a liquid, e.g. a crimp finish
    • 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/165—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam characterised by the use of certain filaments 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/46—Sewing-cottons or the like

Definitions

  • the present invention relates to a thread, in particular a sewing thread, with the features of claim 1.
  • a number of methods are known for producing yarns, in particular sewing yarns, by interlacing two yarn components.
  • US Pat. No. 4,615,167 describes a method for producing a sewing thread, in which a first thread component serving as a core is swirled in a nozzle with the aid of a fluid stream with a second thread component used as an effect material.
  • a pre-oriented yarn POY yarn
  • US Pat. No. 4,615,167 suggests that the second yarn component used as the effect material also be pre-stretched using a corresponding heated pin.
  • EP-B 00 57 583 and the corresponding US Pat. No. 4,497,099 likewise describe a process for producing a swirled yarn.
  • EP-B 00 57 583 proposes at least one pre-drawing of the first yarn component at a drawing ratio that is greater than the drawing ratio recommended for the material used in each case. This is intended to ensure that the loops which form when they are intermingled and cross themselves over themselves are contracted during a subsequent thermal aftertreatment to form a non-crimped, compact yarn.
  • EP 0 295 601 A does not provide any information, either directly or indirectly, on the absolute strength of the ready-to-use sewing thread.
  • the object of the present invention is to provide a yarn, in particular a sewing thread, which has particularly good processing properties.
  • the yarn according to the invention in particular sewing yarn, has, like the known yarns described above, at least one first yarn component comprising a multifilament yarn, which is interwoven with at least one second yarn component to form the yarn.
  • the intermingled yarn according to the invention has an absolute strength between 444.4 cN and 12,000 cN.
  • the mass ratio of the first yarn component to the second yarn component varies between about 90:10 and about 50:50, preferably between 85:15 and 70:30, while the first yarn component has a total titer between 100 dtex and 1,000 dtex, preferably between 100 dtex and 600 dtex.
  • the yarn according to the invention has a number of advantages. For example, it is possible to machine the inventive thread, in particular sewing thread, with very little mechanical effort. to produce, which has excellent properties.
  • the aforementioned absolute strengths mean that the yarn according to the invention does not show any yarn or capillary breaks during further processing, in particular a sewing thread according to the invention, when sewing, even under extreme loads.
  • the yarn according to the invention also has excellent residual shrinkage values, for example the free thermal shrinkage at 160 ° of a dyed yarn between about 0.3% and about 1.5% and the cooking shrinkage of the same yarn below about 1.0%.
  • the absolute strength of the sewing thread according to the invention varies between 1,300 cN and 5,500 cN.
  • the specific strength of the sewing thread according to the invention is preferably between 40 cN / tex and 60 cN / tex.
  • the first yarn component is fed with an advance of the intermingling. This ensures that the resulting yarn according to the invention has a certain volume or a certain crimp, whereby further advantages are achieved. It was found that a certain volume of yarn according to the invention in the yarn gaps between the individual filaments includes a certain amount of air which is pressed out when the yarn is deflected, for example on deflection elements or in the case of a sewing thread in the area of the sewing needle, thereby cooling the Deflection organs or the sewing needle is brought about. This in turn improves the processing properties. Usually the first yarn component with an advance between about 1% to about 9% is preferred between about 2% and about 5%.
  • the easiest way to achieve this is to feed the first yarn component to the intermingling step via appropriate supplying units, the supplying unit speed relative to the speed of the take-off unit which transports the intermingled yarn between about 1% and about 9%, preferably between about 2% and is about 5% higher.
  • the first yarn component can be wetted with a liquid before the intermingling. If particles are also added to this liquid, as described in German patent application DE-C-38 16 318 by the same applicant, the swirling can be intensified. As a result, the yarn composite thus formed is particularly stable in the yarn according to the invention.
  • the second yarn component with lead is usually also fed to the intermingling step.
  • the volume and the number of loops or loops formed in the yarn according to the invention can be varied, which in particular has a decisive influence on the previously described air storage capacity of the interlaced yarns and thus also on the processing properties.
  • the second yarn component is usually fed to the intermingling step with an advance of between approximately 14% and approximately 35%, preferably between approximately 20% and approximately 30%.
  • a sewing thread according to the invention showed particularly good results in industrial sewing tests in which the first yarn component with an advance between 3% and 4% and the second yarn component with an advance between 24% and 26% was fed to the intermingling step.
  • This sewing thread according to the invention showed no thread or capillary breaks even in the long-term use even under extreme load, ie a stitch density of 7000 stitches per minute.
  • the yarn according to the invention can contain any starting material as the second yarn component.
  • one or more, in particular one to four, multifilament yarns or multifilament yarns are preferably used for this purpose, which are conventional textile standard yarns.
  • Good results with regard to the properties of the yarn according to the invention result if the yarn according to the invention contains pre-oriented yarns (POY yarns) as the second yarn component, these pre-oriented yarns being pre-drawn before the intermingling step.
  • This pre-stretching can be carried out, for example, in the known manner using a heated pin. Pen temperatures that vary between approximately 110 ° C. and approximately 150 ° C., preferably between approximately 120 ° C. and 140 ° C., have proven to be particularly good.
  • Yarns according to the invention which are particularly stable against mechanical loads, have a POY yarn as the second yarn component, which is stretched over an unheated pin and then subjected to a thermal treatment, as described in European patent application 0295601A.
  • the second yarn component is preferably drawn in a ratio which is about 2% to about 40%, preferably about 10% to about 25%, less than the value for the respective yarn yarn breakage or capillary breaks occur.
  • Such a yarn according to the invention has, in addition to the extremely high strengths reproduced above, also excellent processing properties, for example when sewing, since the occurrence of yarn and capillary breaks is excluded due to the good strength of the individual capillaries and the air pockets already described, which has been established on the basis of extensive industrial sewing tests has been.
  • such a yarn according to the invention has both thermal shrinkage values at 160 ° C. and cooking shrinkage values which are below about 0.8%. This in turn leads to the fact that the yarn according to the invention no longer shrinks in the processed state, so that bold seams cannot occur.
  • the method for producing such a yarn which has the aforementioned high-strength multifilament yarns as the starting material for the two yarn components, can be carried out very easily, since no pre-stretching device is required in this method, and thus complex adjustment and monitoring of the set parameters can be dispensed with .
  • a particularly suitable variant of the yarn according to the invention which takes into account the above-described problem of different dyeing of the first yarn component relative to the second yarn component and still enables the production of high-strength yarns, provides that the individual titer of the filaments of the first yarn component and the individual titer the filaments of the second yarn component are coordinated.
  • the first and second yarn components dye evenly with respect to the hue and depth of color if, as the first yarn component, filaments with a single titer between about 2 dtex and about 5 dtex, preferably between 2, 5 dtex and about 4 dtex, and the second yarn component contains filaments with a single titer between about 0.8 dtex and about 5 dtex, preferably between about 1 dtex and about 4 dtex. It is particularly surprising here that these embodiments of the intermingled yarns dye themselves uniformly regardless of the material incorporated therein as the first and second yarn component, it being understood that these materials were always the same fiber substrate, e.g.
  • intermingled yarns according to the invention the first component of which are multifilament yarns with specific strengths between 60 cN / tex and 75 cN / tex alone or in connection with standard textile standard yarns and / or POY yarns pre-stretched before the intermingling step and standard textile yarns as second yarn component, pre-drawn POY yarns and / or high-strength yarns before the intermingling step have the aforementioned strengths, always evenly if one has taken into account the above-mentioned coordination of the individual titers of the filaments in both yarn components.
  • this contains, in particular as a second yarn component, a non-matted multifilament yarn or several non-matted multifilament yarns.
  • a non-matted multifilament yarn or several non-matted multifilament yarns Surprisingly, it was found that when using such a variant of the yarn according to the invention as a sewing thread, the sewing properties are even further improved compared to a yarn which has a matted multifilament thread or matted multifilament threads as the second thread component.
  • B. expresses in a reduced warming of the sewing needle.
  • Such a yarn, which has non-matted filaments as the second yarn component can also be produced at a higher speed.
  • the mass ratio of the first yarn component relative to the second yarn component is fixed in the yarn according to the invention.
  • this mass ratio of the first yarn component to the second yarn component varies between 90:10 to about 50:50, preferably between about 85:15 to about 70:30.
  • the yarn according to the invention preferably has at least one multifilament yarn as the first yarn component, the strength of which varies between 60 cN / tex and about 75 cN / tex.
  • the viscosimetrically determined molecular weight is measured for polyester fibers according to SNV 19 55 91 or for polyamide fibers according to SNV 95 590 or DIN 53 728.
  • other high-strength multifilament yarns can of course also be contained in the yarn according to the invention, provided that they have the specific strengths mentioned above.
  • the yarn according to the invention has a multifilament material as the first yarn component, the total titer of which varies between approximately 100 dtex and approximately 1000 dtex, preferably between approximately 100 dtex and approximately 600 dtex.
  • the selection of the number of filaments in the yarn according to the invention depends on the desired properties. So it was found in the area of sewing threads that excellent yarns result if the first yarn component contains a yarn material whose number of filaments is between about 16 and about 300, preferably between about 24 and about 96.
  • the intermingled yarn is wound up under low tension and is then available as finished yarn for further processing. It is also possible to dye the intermingled yarn after the intermingling step, in which case the intermingled yarn is expediently wound directly onto corresponding dye tubes directly after the intermingling step.
  • the subsequent dyeing process in particular with HT dyeing at about 130 ° C., the yarn shrinks by about 2 to 3%, which leads to a reduction in the diameter of the loops or loops which cross and intersect in the yarn according to the invention without these are pulled together into knots.
  • the yarn thus produced can be subjected to a tension treatment after the intermingling step and before winding.
  • the diameters of the self-crossing loops and loops formed during swirling are preferably reduced to such an extent that they are reduced by about 20% to about 95% with respect to their original diameter. It should be emphasized that, however, this should prevent the loops and loops from contracting into knots, since otherwise the later processing properties of a such yarn, especially a sewing thread, deteriorate. It was thus found that the loops or loops, which are smaller in diameter, bring about very good yarn cohesion, which is desirable in particular because of the high demands placed on a sewing thread during processing.
  • such a sewing thread according to the invention still has a certain volume, so that air is enclosed within the thread, which is pressed out during sewing thread, in particular when the thread is deflected on thread guide elements or the needle. This in turn causes cooling of the deflecting members or the needle, so that no thread breaks occur in this embodiment of the yarn according to the invention, which is not the case with a comparison yarn in which the loops are pulled together like knots.
  • the yarn is fed to the tension treatment at a speed which is between 0.1% and 5%, in particular between 0.1% and 2.5%, less than the speed at which the Yarn is withdrawn from the tension treatment.
  • the speed differences mentioned above depend on the one hand on the desired reduction in the diameter of the self-crossing loops and loops and on the other hand on the selected advance of the first and second yarn components.
  • a thermal one can be used Treatment is carried out before winding the entangled yarn, the temperature of the thermal treatment varies between about 100 ° C and about 250 ° C, in particular between about 180 ° C and about 230 ° C.
  • Such a thermal treatment like the previously described tension treatment taking place at room temperature, results in a reduction in the diameter of the intersecting loops and loops, which includes the advantages already set out, in particular in the case of a sewing thread.
  • the thermal shrinkage values of the intermingled yarn according to the invention are reduced by a thermal treatment, which is furthermore positively expressed when the yarn is subsequently used in the processed state.
  • This thermal treatment is usually carried out with residence times between about 0.01 s to about 10 s, preferably between about 0.05 s and 1 s.
  • tension in the thermal treatment it should be noted that this is carried out without tension or preferably with a certain advance, so that the swirled yarn of the invention treated in this way can shrink.
  • the yarn is fed at speeds of thermal treatment that are 0.1% to 10%, in particular 2% to 4%, higher than the take-off speeds. This prevents undesirable tensions from being frozen in the yarn according to the invention, which are disadvantageously noticeable in later use, for example in the case of a sewing thread, by bolting the seams.
  • a further embodiment of the yarn according to the invention provides that the intermingled yarn is twisted.
  • the yarn according to the invention with a rotation between about 10 turns per m and about 800 turns per m, preferably between about 100 turns per m and about 600 turns per m.
  • Such twisting of the yarn according to the invention can be carried out as an integrated step in one of the above-described methods before the yarn is wound up. In many cases, however, it is better to twist the yarn according to the invention in a separate working step after winding up, since otherwise the production speed would have to depend on the relatively slow twisting.
  • the yarn has as the first yarn component a single multifilament yarn which has the above-mentioned single titer range, the number of filaments and a specific strength between 60 cN / tex and 75 cN / tex .
  • This multifilament yarn is interwoven with the aforementioned leads with a second multifilament yarn as the second yarn component to form the yarn according to the invention, the second yarn component having the individual titer range already mentioned above and being fed to the interlacing step with the aforementioned lead.
  • the intermingled yarn thus produced is then drawn at room temperature under the abovementioned conditions and then transferred to a thermal treatment, the abovementioned temperatures, tensions and residence times being used. Then you wind up the sewing thread thus produced and twist, dye and / or finish it afterwards.
  • the yarn according to the invention is explained in more detail below on the basis of a microscopic photo of the yarn and by means of exemplary embodiments.
  • a yarn which is denoted overall by 1 in the electron scanning microscope photo and which is a sewing yarn, has a core material 2 as the first yarn component, which is a multifilament yarn.
  • the core material 2 is interwoven with a second yarn component 3, which is also usually referred to as fancy yarn component or fancy yarn.
  • the fancy yarn component 3 consists of a multifilament yarn.
  • the fancy yarn component 3 is predominantly arranged in the outer region of the yarn 1 and forms self-crossing loops 4 or loops 5 with respect to the core material 2, which mainly extends in a straight line in the axial direction.
  • the self-crossing loops have 4 different loop diameters, but are not pulled together like knots.
  • a multi-filament yarn is used as core material 2, which has a specific strength of 70 cN / tex, an elementary thread count of 64 and a single titer of about 3.6 dtex.
  • the effect material 3 consists of a pre-oriented yarn 1 Multifilament yarn (POY yarn) which has been drawn over a pin heated to 130 ° C. with a diameter of 70 mm and a pre-drawing ratio of 1: 1.7 and has a single filament number of 24, the single filament titer being about 3.4 dtex.
  • the total titer of yarn 1 after swirling is about 300 dtex.
  • the absolute strength of yarn 1 is 1300 cN.
  • the loops 4 and loops 5 protruding from the yarn were measured from the yarn depicted.
  • the yarn was transported perpendicular to a bundled beam of light, which was generated by a corresponding light source.
  • a photocell was arranged in a plane opposite the light source, so that the interruption of the light beam caused by a loop 4 or loop 5 was detected by the photocell and added accordingly.
  • This measurement was carried out at a distance of the light beam from the yarn of 0.5 mm and 1 mm. With a distance of the light beam of 0.5 mm above the yarn, 160 interruptions per m and at a distance of 1 mm 18 interruptions per m were measured.
  • First yarn component A multifilament yarn with a specific strength of 65 cN / tex and a single filament titer of around 4.8 dtex.
  • Second yarn component a multifilament yarn of a standard textile type with a single filament titer of about 3 dtex.
  • First yarn component As for yarn 1.
  • Second yarn component a multifilament yarn of a pre-oriented (POY) fiber, which is pre-drawn at a pre-drawing ratio of 1: 1.7 via a 130 ° C hot pin with a diameter of 70 mm, single-filament titer 3 dtex.
  • POY pre-oriented
  • First yarn component As for yarn 1 and 2.
  • Second yarn component A multifilament yarn like yarn 2 pre-drawn, but with a single filament titer of about 1.5 dtex.
  • First yarn component A multifilament yarn with a specific strength of 70 cN / tex and a single filament titer of around 2.8 dtex.
  • Second yarn component A multifilament yarn of a standard textile material with a single filament titer of approximately 1.2 dtex.
  • First yarn component Like yarn 4.
  • Second yarn component Like yarn 3.
  • First and second yarn components each a multifilament yarn with a specific strength of 68 cN / tex, single filament titer of the first yarn component: 5 dtex, single filament titer of the second yarn component: 1.2 dtex.
  • First yarn component A multifilament yarn with a specific strength of 62 cN / tex and a single filament titer of around 5.5 dtex.
  • Second yarn component A textile standard multifilament yarn with a single filament titer of about 5.5 dtex.
  • Yarn 7 showed clear color and depth differences, so that this yarn is not suitable despite the same single filament filter because of the upcoming color differences.

Abstract

In mfg. a yarn, or partic. sewing thread, using a multifilament core and a second cladding material which is in intersecting loops around the core, the core is multifilament(s) with a strength of 60-75 cN/tex and is passed directly to the fluid eddy stage for cladding without preliminary drawing. Pref. the core component, satd. with a fluid, is subjected to eddies with a forward slip of 1-9%, while the cladding yarn component is passed to the eddy cladding stage with a forward slip of 14-35% (20-30%). The pref. cladding yarn component is a preoriented multifilament POY, given an initial drawing round pref. a heated pin before eddying, using a pin temp. of 110-150 deg.C (120-140 deg.C). The preorientation gives a drawing ratio of 2-40% (10-25). The specific strength of the cladding yarn component is pref. 20-75 cN/tex, and esp. 30-45 cN/tex or 60-75 cN/tex. For effective dyeing, the titre of the filaments in the core is 2-5 dtex (2.5-4.0 dtex), and the cladding filaments are 0.8-5.0 dtex (1-4 dtex). An unmatted multifilament is pref. for the cladding. The ratio of the mass of the core to the cladding is 90:10-50:50 (85:15-70:30). The pref. viscosimetric determd. mol.wt. is greater than that of a standard chemical fibre by 5-50% (by 10-25%). The multifilament core of 16-300 filaments (24-96), has a combined titre of 100-1000 dtex (100-600 dtex).

Description

Die vorliegende Erfindung betrifft ein Garn, insbesondere ein Nähgarn, mit den Merkmalen des Patentanspruchs 1.The present invention relates to a thread, in particular a sewing thread, with the features of claim 1.

Es ist eine Reihe von Verfahren bekannt, um Garne, insbesondere Nähgarne, durch Verwirbeln von zwei Garnkomponenten herzustellen. So beschreibt beispielsweise die US-PS 46 15 167 ein Verfahren zur Herstellung eines Nähgarnes, wobei eine als Seele dienende erste Garnkomponente mit einer als Effektmaterial verwendeten zweiten Garnkomponente in einer Düse mit Hilfe eines Fluidstromes verwirbelt wird. Hierbei wird als erste Garnkomponente ein vororientiertes Garn (POY-Garn) eingesetzt, das vor dem Verwirbeln mit der zweiten Garnkomponente über einen geheizten Stift vorverstreckt wird. Um hierbei eine gleichmäßige Anfärbung der beiden Garnkomponenten zu erreichen, schlägt die US-PS 46 15 167 vor, die als Effektmaterial verwendete zweite Garnkomponente ebenfalls über einen entsprechenden geheizten Stift vorzuverstrecken.A number of methods are known for producing yarns, in particular sewing yarns, by interlacing two yarn components. For example, US Pat. No. 4,615,167 describes a method for producing a sewing thread, in which a first thread component serving as a core is swirled in a nozzle with the aid of a fluid stream with a second thread component used as an effect material. In this case, a pre-oriented yarn (POY yarn) is used as the first yarn component, which is pre-stretched using a heated pin before intermingling with the second yarn component. In order to achieve a uniform dyeing of the two yarn components, US Pat. No. 4,615,167 suggests that the second yarn component used as the effect material also be pre-stretched using a corresponding heated pin.

Die EP-B 00 57 583 bzw. die hierzu korrespondierende US-PS 44 97 099 beschreiben ebenfalls ein Verfahren zur Herstellung eines verwirbelten Garnes. Im Unterschied zu der US-PS 46 15 167 schlägt die EP-B 00 57 583 mindestens eine Vorverstreckung der ersten Garnkomponente bei einem Verstreckungsverhältnis vor, das größer ist als das für das jeweils verwendete Material empfohlene Verstreckungsverhältnis. Hierdurch soll erreicht werden, daß sich die beim Verwirbeln bildenden, sich selbst überkreuzenden Schlaufen bei einer anschließenden thermischen Nachbehandlung unter Ausbildung eines nicht gekräuselten, kompakten Garnes zusammengezogen werden.EP-B 00 57 583 and the corresponding US Pat. No. 4,497,099 likewise describe a process for producing a swirled yarn. In contrast to US Pat. No. 4,615,167, EP-B 00 57 583 proposes at least one pre-drawing of the first yarn component at a drawing ratio that is greater than the drawing ratio recommended for the material used in each case. This is intended to ensure that the loops which form when they are intermingled and cross themselves over themselves are contracted during a subsequent thermal aftertreatment to form a non-crimped, compact yarn.

Die vorangemeldete, jedoch nach veröffentlichte europäische Patentanmeldung 0295601A beschreibt ein hochfestes Nähgarn, wobei dieses Nähgarn als Seelenmaterial eine erste Garnkomponente und eine damit als Effektmaterial verwirbelte zweite Garnkomponente aufweist. Als Material für die erste Garnkomponente schlägt die zuvor genannte europäische Patentanmeldung die Verwendung eines vororientierten Garnes (POY-Garn) vor, wobei durch Anwendung eines speziellen Vorverstreckungsverfahrens die spezifische Festigkeit des Seelenmaterials vergrößert wird. Auch sind in dieser europäischen Patentanmeldung erstmals spezifische Festigkeitsdaten von Seelenmaterialien aufgeführt, die nach den bekannten Verfahren, beispielsweise nach Verfahren gemäß der zuvor genannten US-PS 46 15 167 oder EP-B 00 57 583, vorverstreckt sind. Hierbei liegen die spezifischen Festigkeiten dieser konventionell vorverstreckten Seelenmaterialien zwischen etwa 30 cN/tex und etwa 40 cN/tex. Angaben zur absoluten Festigkeit des anwendungsfertigen Nähgarnes sind der EP 0 295 601 A jedoch weder direkt noch indirekt zu entnehmen.The previously registered, but after published European patent application 0295601A describes a high-strength sewing thread, this sewing thread having a first thread component as a core material and a second thread component interlaced with it as an effect material. The aforementioned European patent application proposes the use of a pre-oriented yarn (POY yarn) as the material for the first yarn component, the specific strength of the core material being increased by using a special pre-stretching process. This European patent application also lists for the first time specific strength data for core materials which are pre-stretched by the known methods, for example by the method according to the aforementioned US Pat. No. 4,615,167 or EP-B 00 57 583. Here are the specific strengths of these conventionally pre-stretched core materials between about 30 cN / tex and about 40 cN / tex. However, EP 0 295 601 A does not provide any information, either directly or indirectly, on the absolute strength of the ready-to-use sewing thread.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Garn, insbesondere ein Nähgarn, zur Verfügung zu stellen, das besonders gute Verarbeitungseigenschaften besitzt.The object of the present invention is to provide a yarn, in particular a sewing thread, which has particularly good processing properties.

Diese Aufgabe wird erfindungsgemäß durch ein Garn mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved according to the invention by a yarn with the features of claim 1.

Das erfindungsgemäße Garn, insbesondere Nähgarn, weist, wie die zuvor beschriebenen bekannten Garne, mindestens eine erste, ein Multifilamentgarn umfassende Garnkomponente auf, die mit mindestens einer zweiten Garnkomponente unter Ausbildung des Garnes verwirbelt ist. Hierbei besitzt das erfindungsgemäße verwirbelte Garn eine absolute Festigkeit zwischen 444,4 cN und 12.000 cN. Desweiteren variiert bei dem erfindungsgemäßen Garn das Massenverhältnis der ersten Garnkomponente zu der zweiten Garnkomponente zwischen etwa 90:10 und etwa 50:50, vorzugsweise zwischen 85:15 und 70:30, während die erste Garnkomponente einen Gesamttiter zwischen 100 dtex und 1.000 dtex, vorzugsweise zwischen 100 dtex und 600 dtex, aufweist.The yarn according to the invention, in particular sewing yarn, has, like the known yarns described above, at least one first yarn component comprising a multifilament yarn, which is interwoven with at least one second yarn component to form the yarn. The intermingled yarn according to the invention has an absolute strength between 444.4 cN and 12,000 cN. Furthermore, in the yarn according to the invention the mass ratio of the first yarn component to the second yarn component varies between about 90:10 and about 50:50, preferably between 85:15 and 70:30, while the first yarn component has a total titer between 100 dtex and 1,000 dtex, preferably between 100 dtex and 600 dtex.

Das erfindungsgemäße Garn weist eine Reihe von Vorteilen auf. So ist es beispielsweise möglich, mit einem sehr geringen maschinellen Aufwand das erfindungsgemäße Garn, insbesondere Nähgarn, herzustellen, das ausgezeichnete Eigenschaften besitzt. Die zuvor genannten absoluten Festigkeiten führen dazu, daß das erfindungsgemäße Garn bei der weiteren Verarbeitung, insbesondere ein erfindungsgemäßes Nähgarn, beim Vernähen auch bei einer extremen Belastung keine Garn- oder Kapillarbrüche zeigt. Auch besitzt das erfindungsgemäße Garn ausgezeichnete Restschrumpfwerte, wobei beispielsweise der freie Thermoschrumpf bei 160° eines gefärbten Garnes zwischen etwa 0,3 % und etwa 1,5 % und der Kochschrumpf des gleichen Garnes unter etwa 1,0 % liegen.The yarn according to the invention has a number of advantages. For example, it is possible to machine the inventive thread, in particular sewing thread, with very little mechanical effort. to produce, which has excellent properties. The aforementioned absolute strengths mean that the yarn according to the invention does not show any yarn or capillary breaks during further processing, in particular a sewing thread according to the invention, when sewing, even under extreme loads. The yarn according to the invention also has excellent residual shrinkage values, for example the free thermal shrinkage at 160 ° of a dyed yarn between about 0.3% and about 1.5% and the cooking shrinkage of the same yarn below about 1.0%.

Insbesondere variiert die absolute Festikgeit des erfindungsgemäßen Nähgarnes zwischen 1.300 cN und 5.500 cN.In particular, the absolute strength of the sewing thread according to the invention varies between 1,300 cN and 5,500 cN.

Vorzugsweise beträgt die spezifische Festigkeit des erfindungsgemäßen Nähgarnes zwischen 40 cN/tex und 60 cN/tex.The specific strength of the sewing thread according to the invention is preferably between 40 cN / tex and 60 cN / tex.

Üblicherweise wird bei der Herstellung des erfindungsgemäßen Garnes die erste Garnkomponente mit einer Voreilung der Verwirbelung zugeführt. Hierdurch wird sichergestellt, daß das entstehende erfindungsgemäße Garn ein gewisses Volumen bzw. eine bestimmte Kräuselung aufweist, wodurch weitere Vorteile erzielt werden. So konnte festgestellt werden, daß ein ein bestimmtes Volumen aufweisendes erfindungsgemäßes Garn in den zwischen den Einzelfilamenten befindlichen Garnzwischenräumen eine gewisse Luftmenge einschließt, die beim Umlenken des Garnes, beispielsweise an Umlenkorganen oder bei einem Nähgarn im Bereich der Nähnadel, herausgepreßt wird, wodurch eine Kühlung der Umlenkorgane bzw. der Nähnadel herbeigeführt wird. Dies wiederum verbessert die Verarbeitungseigenschaften. Üblicherweise wird die erste Garnkomponente mit einer Voreilung zwischen etwa 1 % bis etwa 9 %, vorzugsweise zwischen etwa 2 % und etwa 5 %, dem Verwirbelungsschritt zugeführt. Dies kann am einfachsten dadurch erreicht werden, daß man die erste Garnkomponente über entsprechende Lieferwerke dem Verwirbelungsschritt zuführt, wobei die Lieferwerkgeschwindigkeit relativ zur Geschwindigkeit des Abzugswerkes, das das verwirbelte Garn transportiert, zwischen etwa 1 % bis etwa 9 %, vorzugsweise zwischen etwa 2 % und etwa 5 %, höher ist.Usually, in the production of the yarn according to the invention, the first yarn component is fed with an advance of the intermingling. This ensures that the resulting yarn according to the invention has a certain volume or a certain crimp, whereby further advantages are achieved. It was found that a certain volume of yarn according to the invention in the yarn gaps between the individual filaments includes a certain amount of air which is pressed out when the yarn is deflected, for example on deflection elements or in the case of a sewing thread in the area of the sewing needle, thereby cooling the Deflection organs or the sewing needle is brought about. This in turn improves the processing properties. Usually the first yarn component with an advance between about 1% to about 9% is preferred between about 2% and about 5%. The easiest way to achieve this is to feed the first yarn component to the intermingling step via appropriate supplying units, the supplying unit speed relative to the speed of the take-off unit which transports the intermingled yarn between about 1% and about 9%, preferably between about 2% and is about 5% higher.

Um eine besonders intensive Verwirbelung der beiden Garnkomponenten bei dem erfindungsgemäßen Garn zu erreichen, kann die erste Garnkomponente vor der Verwirbelung mit einer Flüssigkeit benetzt werden. Werden zudem noch dieser Flüssigkeit Partikel zugegeben, wie dies in der deutschen Patentanmeldung D E-C-38 16 318 desselben Anmelders beschrieben ist, kann die Verwirbelung noch intensiviert werden. Dies führt dazu, daß bei dem erfindungsgemäßen Garn der so gebildete Garnverbund besonders stabil ist.In order to achieve a particularly intensive intermingling of the two yarn components in the yarn according to the invention, the first yarn component can be wetted with a liquid before the intermingling. If particles are also added to this liquid, as described in German patent application DE-C-38 16 318 by the same applicant, the swirling can be intensified. As a result, the yarn composite thus formed is particularly stable in the yarn according to the invention.

Üblicherweise ist bei dem erfindungsgemäßen Garn auch die zweite Garnkomponente mit Voreilung dem Verwirbelungsschritt zugeführt. Abhängig von der jeweils ausgewählten Voreilung der zweiten Garnkomponente in Abstimmung auf die jeweils ausgewählte Voreilung der ersten Garnkomponente läßt sich hierdurch das Volumen und die Anzahl der gebildeten Schlingen bzw. Schlaufen bei dem erfindungsgemäßen Garn variieren, was insbesondere einen entscheidenden Einfluß auf das zuvor beschriebene Luftspeichervermögen des verwirbelten Garnes und damit auch auf die Verarbeitungseigenschaften hat. Üblicherweise wird die zweite Garnkomponente mit einer Voreilung zwischen etwa 14 % und etwa 35 %, vorzugsweise zwischen etwa 20 % und etwa 30 %, dem Verwirbelungsschritt zugeführt. Besonders gute Ergebnisse bei industriell durchgeführten Nähversuchen wies ein erfindungsgemäßes Nähgarn auf, bei dem die erste Garnkomponente mit einer Voreilung zwischen 3 % und 4 % und die zweite Garnkomponente mit einer Voreilung zwischen 24 % und 26 % dem Verwirbelungsschritt zugeführt wurde. Dieses erfindungsgemäße Nähgarn zeigte selbst bei einer extremen Belastung, d.h. einer Stichdichte von 7000 Stichen pro Minute, auch in der Langzeitanwendung keinerlei Garn- bzw. Kapillarbrüche.In the yarn according to the invention, the second yarn component with lead is usually also fed to the intermingling step. Depending on the respectively selected advance of the second yarn component in coordination with the respectively selected advance of the first yarn component, the volume and the number of loops or loops formed in the yarn according to the invention can be varied, which in particular has a decisive influence on the previously described air storage capacity of the interlaced yarns and thus also on the processing properties. The second yarn component is usually fed to the intermingling step with an advance of between approximately 14% and approximately 35%, preferably between approximately 20% and approximately 30%. A sewing thread according to the invention showed particularly good results in industrial sewing tests in which the first yarn component with an advance between 3% and 4% and the second yarn component with an advance between 24% and 26% was fed to the intermingling step. This sewing thread according to the invention showed no thread or capillary breaks even in the long-term use even under extreme load, ie a stitch density of 7000 stitches per minute.

Grundsätzlich kann das erfindungsgemäße Garn als zweite Garnkomponente jedes Ausgangsmaterial enthalten. Vorzugsweise werden jedoch hierfür ein oder mehrere, insbesondere ein bis vier Multifilamentgarn bzw. Multifilamentgarne eingesetzt, bei dem bzw. bei denen es sich um übliche textile Standardgarne handelt. Gute Ergebnisse bezüglich der Eigenschaften des erfindungsgemäßen Garnes ergeben sich, wenn das erfindungsgemäße Garn als zweite Garnkomponente vororientierte Garne (POY-Garne) enthält, wobei diese vororientierten Garne vor dem Verwirbelungsschritt vorverstreckt werden. Diese Vorverstreckung kann man beispielsweise in der bekannten Weise über einen geheizten Stift durchführen. Hierbei haben sich Stifttemperaturen, die zwischen etwa 110° C und etwa 150° C, vorzugsweise zwischen etwa 120° C und 140° C, variieren, als besonders gut erwiesen.In principle, the yarn according to the invention can contain any starting material as the second yarn component. However, one or more, in particular one to four, multifilament yarns or multifilament yarns are preferably used for this purpose, which are conventional textile standard yarns. Good results with regard to the properties of the yarn according to the invention result if the yarn according to the invention contains pre-oriented yarns (POY yarns) as the second yarn component, these pre-oriented yarns being pre-drawn before the intermingling step. This pre-stretching can be carried out, for example, in the known manner using a heated pin. Pen temperatures that vary between approximately 110 ° C. and approximately 150 ° C., preferably between approximately 120 ° C. and 140 ° C., have proven to be particularly good.

Besonders gegenüber mechanischen Beanspruchungen stabile erfindungsgemäße Garne weisen als zweite Garnkomponente ein POY-Garn auf, das über einen ungeheizten Stift verstreckt und anschließend einer thermischen Behandlung unterworfen wurde, wie dies in der europäischen Patentanmeldung 0295601A beschrieben ist.Yarns according to the invention, which are particularly stable against mechanical loads, have a POY yarn as the second yarn component, which is stretched over an unheated pin and then subjected to a thermal treatment, as described in European patent application 0295601A.

Bezüglich des Vorverstreckungsverhältnisses der zweiten Garnkomponente ist festzuhalten, daß bevorzugt die zweite Garnkomponente in einem Verhältnis verstreckt wird, das etwa 2 % bis etwa 40 %, vorzugsweise etwa 10 % bis etwa 25 %, unter dem Wert liegt, bei dem es bei dem jeweiligen Garn zu einem Garnbruch bzw. zu Kapillarbrüchen kommt.With regard to the pre-drawing ratio of the second yarn component, it should be noted that the second yarn component is preferably drawn in a ratio which is about 2% to about 40%, preferably about 10% to about 25%, less than the value for the respective yarn yarn breakage or capillary breaks occur.

Ist ein erfindungsgemäßes Garn mit einer sehr hohen Gesamtfestigkeiten, d.h. einer spezifischen Festigkeiten über etwa 45 cN/tex, erwünscht, so bietet es sich an, für die erste Garnkomponente und die zweite Garnkomponente als Ausgangsmaterial ein hochfestes Multifilamentgarn einzusetzen, das eine spezifische Festigkeit zwischen etwa 60 cN/tex und etwa 75 cN/tex besitzt. Ein derartiges erfindungsgemäßes Garn besitzt neben den zuvor wiedergegebenen extrem hohen Festigkeiten auch ausgezeichnete Verarbeitungseigenschaften, beispielsweise beim Nähen, da hierbei wegen der guten Festigkeit der Einzelkapillaren und der bereits zuvor beschriebenen Lufteinschlüsse das Auftreten von Garn- und Kapillarbrüchen ausgeschlossen ist, was anhand umfangreicher industrieller Nähversuche festgestellt wurde. Ferner besitzt ein derartiges erfindungsgemäßes Garn sowohl Thermoschrumpfwerte bei 160° C als auch Kochschrumpfwerte, die unter etwa 0,8 % liegen. Dies wiederum führt dazu, daß das erfindungsgemäße Garn im verarbeiteten Zustand nicht mehr schrumpft, so daß boldrige Nähte nicht auftreten können.Is a yarn according to the invention with a very high overall strength, i.e. a specific strength above about 45 cN / tex, it is advisable to use a high-strength multifilament yarn for the first yarn component and the second yarn component, which has a specific strength between about 60 cN / tex and about 75 cN / tex . Such a yarn according to the invention has, in addition to the extremely high strengths reproduced above, also excellent processing properties, for example when sewing, since the occurrence of yarn and capillary breaks is excluded due to the good strength of the individual capillaries and the air pockets already described, which has been established on the basis of extensive industrial sewing tests has been. Furthermore, such a yarn according to the invention has both thermal shrinkage values at 160 ° C. and cooking shrinkage values which are below about 0.8%. This in turn leads to the fact that the yarn according to the invention no longer shrinks in the processed state, so that bold seams cannot occur.

Darüberhinaus läßt sich das Verfahren zur Herstellung eines derartigen Garnes, das für die beiden Garnkomponenten als Ausgangsmaterial die zuvor genannten hochfesten Multifilamentgarne aufweist, sehr einfach durchführen, da bei diesem Verfahren keine Vorverstreckungseinrichtung erforderlich ist und somit ein aufwendiges Einstellen derselben und Überwachen der eingestellten Parameter entfallen kann.In addition, the method for producing such a yarn, which has the aforementioned high-strength multifilament yarns as the starting material for the two yarn components, can be carried out very easily, since no pre-stretching device is required in this method, and thus complex adjustment and monitoring of the set parameters can be dispensed with .

Darüberhinaus tritt bei den zuvor beschriebenen bekannten verwirbelten Garnen, insbesondere bei Nähgarnen, noch ein weiteres Problem auf. Dies ist darin begründet, daß sich vielfach die bekannten verwirbelten Garne unterschiedlich anfärben, was sich sowohl in einer Farbton- als auch in einer Farbtiefenverschiebung ausdrücken kann.In addition, a further problem occurs with the known intermingled yarns described above, particularly with sewing yarns. This is due to the fact that in many cases the known intermingled yarns dye differently, which can be expressed both in a hue and in a color depth shift.

Eine besonders geeignete Variante des erfindungsgemäßen Garnes, die das vorstehend beschriebene Problem der unterschiedlichen Anfärbung der ersten Garnkomponente relativ zur zweiten Garnkomponente im besonderen Maße berücksichtigt und dennoch die Herstellung von hochfesten Garnen ermöglicht, sieht vor, daß die Einzeltiter der Filamente der ersten Garnkomponente und die Einzeltiter der Filamente der zweiten Garnkomponente aufeinander abstimmt sind. So konnte festgestellt werden, daß sich bei Solchen Ausführungsformen der verwirbelten Garne die erste und zweite Garnkomponente dann bezüglich des Farbtons und der Farbtiefe gleichmäßig anfärben, wenn hierin als erste Garnkomponente Filamente mit einem Einzeltiter zwischen etwa 2 dtex und etwa 5 dtex, vorzugsweise zwischen 2,5 dtex und etwa 4 dtex, und als zweite Garnkomponente Filamente mit einem Einzeltiter zwischen etwa 0,8 dtex und etwa 5 dtex, vorzugsweise zwischen etwa 1 dtex und etwa 4 dtex, enthalten sind. Besonders überraschend hierbei ist, daß sich diese Ausführungsformen der verwirbelten Garne unabhängig von dem hierin als erste und zweite Garnkomponente eingearbeiteten Material gleichmäßig anfärben, wobei es sich selbstverständlich bei diesen Materialien immer um dasselbe Fasersubstrat, d.h. z. B. Polyesterfaser, Polypropylen-oder Polyamidfaser, handelte. Trotz umfangreicher Färbeversuche, auch insbesondere mit sehr kritischen Farbstoffkombinationen, konnten keine Unterschiede im Farbton und in der Farbtiefe zwischen den beiden Garnkomponenten festgestellt werden So färben sich beispielsweise verwirbelte erfindungsgemäße Garne, die als erste Komponente Multifilamentgarne mit spezifischen Festigkeiten zwischen 60 cN/tex und 75 cN/tex allein oder in Verbindung mit üblichen Textilstandardgarnen und/oder vor dem Verwirbelungsschritt vorverstreckten POY-Garnen und als zweite Garnkomponente textile Standardgarne, vor dem Verwirbelungsschritt vorverstreckte POY-Garne und/oder hochfeste Garne mit den zuvor genannten Festigkeiten, aufweisen, stets dann gleichmäßig an, wenn man die zuvor wiedergegebene Abstimmung der Einzeltiter der Filamente in beiden Garnkomponenten berücksichtigt hat.A particularly suitable variant of the yarn according to the invention, which takes into account the above-described problem of different dyeing of the first yarn component relative to the second yarn component and still enables the production of high-strength yarns, provides that the individual titer of the filaments of the first yarn component and the individual titer the filaments of the second yarn component are coordinated. It was thus found that in such embodiments of the intermingled yarns, the first and second yarn components dye evenly with respect to the hue and depth of color if, as the first yarn component, filaments with a single titer between about 2 dtex and about 5 dtex, preferably between 2, 5 dtex and about 4 dtex, and the second yarn component contains filaments with a single titer between about 0.8 dtex and about 5 dtex, preferably between about 1 dtex and about 4 dtex. It is particularly surprising here that these embodiments of the intermingled yarns dye themselves uniformly regardless of the material incorporated therein as the first and second yarn component, it being understood that these materials were always the same fiber substrate, e.g. polyester fiber, polypropylene or polyamide fiber. Despite extensive dyeing tests, in particular with very critical dye combinations, no differences in color and depth of color between the two yarn components could be determined. For example, intermingled yarns according to the invention, the first component of which are multifilament yarns with specific strengths between 60 cN / tex and 75 cN / tex alone or in connection with standard textile standard yarns and / or POY yarns pre-stretched before the intermingling step and standard textile yarns as second yarn component, pre-drawn POY yarns and / or high-strength yarns before the intermingling step have the aforementioned strengths, always evenly if one has taken into account the above-mentioned coordination of the individual titers of the filaments in both yarn components.

Bei einer weiteren Variante des erfindungsgemäßen Garnes enthält dieses insbesondere als zweite Garnkomponente ein nicht mattiertes Multifilamentgarn bzw. mehrere nicht mattierte Multifilamentgarne. Überraschend stellte sich dabei heraus, daß bei Verwendung einer derartigen Variante des erfindungsgemäßen Garnes als Nähgarn im Vergleich zu einem Garn, das als zweite Garnkomponente ein mattiertes Multifilamentgarn bzw. mattierte Multifilamentgarne aufweist, die Näheigenschaften noch weiter verbessert sind, was sich z. B. in einer verringerten Erwärmung der Nähnadel ausdrückt. Auch läßt sich ein derartiges Garn, das als zweite Garnkomponente nicht mattierte Filamente aufweist, mit einer höheren Geschwindigkeit herstellen.In a further variant of the yarn according to the invention, this contains, in particular as a second yarn component, a non-matted multifilament yarn or several non-matted multifilament yarns. Surprisingly, it was found that when using such a variant of the yarn according to the invention as a sewing thread, the sewing properties are even further improved compared to a yarn which has a matted multifilament thread or matted multifilament threads as the second thread component. B. expresses in a reduced warming of the sewing needle. Such a yarn, which has non-matted filaments as the second yarn component, can also be produced at a higher speed.

Abhängig von den jeweils erwünschten Eigenschaften des verwirbelten erfindungsgemäßen Garnes, d.h. insbesondere der Anfärbbarkeit, der Festigkeit, des Endtiters und/oder der Schrumpfwerte, ist bei dem erfindungsgemäßen Garn das Massenverhältnis der ersten Garnkomponente relativ zur zweiten Garnkomponente festgelegt. Hierbei variiert, wie bereits vorstehend beschrieben, dieses Massenverhältnis der ersten Garnkomponente zur zweiten Garnkomponente zwischen 90 : 10 bis etwa 50 : 50 vorzugsweise zwischen etwa 85 : 15 bis etwa 70 : 30, variieren. Innerhalb dieser zuvor wiedergegebenen Massenverhältnisse lassen sich besonders gut Garne, insbesondere Nähgarne, herstellen.Depending on the desired properties of the intermingled yarn according to the invention, ie in particular the dyeability, strength, the final titer and / or the shrinkage values, the mass ratio of the first yarn component relative to the second yarn component is fixed in the yarn according to the invention. As already described above, this mass ratio of the first yarn component to the second yarn component varies between 90:10 to about 50:50, preferably between about 85:15 to about 70:30. Within of these mass ratios reproduced above, yarns, in particular sewing threads, can be produced particularly well.

Vorzugsweise besitzt das erfindungsgemäße Garn als erste Garnkomponente mindestens ein Multifilamentgarn, dessen Festigkeit zwischen 60 cN/tex und etwa 75 cN/tex variiert. Hierbei handelt es sich um üblicherweise auch als hochfeste Multifilamentgarne oder technische Multifilamentgarne bezeichnete Garnmaterialien, die in der Regel ein viskosimetrisch bestimmte Molekulargewicht aufweisen, das im Vergleich zu dem viskosimetrisch bestimmten Molekulargewicht einer ansonsten chemisch identischen textilen Standardfaser etwa um 5 % bis etwa 50 %, vorzugsweise um etwa 10 % bis etwa 25 %, größer ist. Das viskosimetrisch bestimmte Molekulargewicht wird dabei für Polyesterfasern nach SNV 19 55 91 bzw. für Polyamidfasern nach SNV 95 590 oder DIN 53 728 gemessen. Selbstverständlich können jedoch auch andere hochfeste Multifilamentgarne in dem erfindungsgemäßen Garn enthalten sein, sofern sie die zuvor genannten spezifischen Festigkeiten besitzen.The yarn according to the invention preferably has at least one multifilament yarn as the first yarn component, the strength of which varies between 60 cN / tex and about 75 cN / tex. These are yarn materials usually also referred to as high-strength multifilament yarns or technical multifilament yarns, which generally have a viscosimetrically determined molecular weight which is about 5% to about 50%, preferably, compared to the viscosimetrically determined molecular weight of an otherwise chemically identical textile standard fiber is about 10% to about 25% larger. The viscosimetrically determined molecular weight is measured for polyester fibers according to SNV 19 55 91 or for polyamide fibers according to SNV 95 590 or DIN 53 728. However, other high-strength multifilament yarns can of course also be contained in the yarn according to the invention, provided that they have the specific strengths mentioned above.

Abhängig von dem jeweils gewünschten Endtiter des verwirbelten Garnes und den erwünschten Eigenschaften desselben richtet sich die Auswahl der ersten Garnkomponente. Wie bereits dargelegt, weist das erfindungsgemäße Garn als erste Garnkomponente ein multifiles Material auf, dessen Gesamttiter zwischen etwa 100 dtex und etwa 1000 dtex, vorzugsweise zwischen etwa 100 dtex und etwa 600 dtex, variiert.The selection of the first yarn component depends on the desired final titer of the intermingled yarn and the desired properties. As already explained, the yarn according to the invention has a multifilament material as the first yarn component, the total titer of which varies between approximately 100 dtex and approximately 1000 dtex, preferably between approximately 100 dtex and approximately 600 dtex.

Ebenso wie der Gesamttiter richtet sich bei dem erfindungsgemäßen Garn die Auswahl der Elementarfadenzahl nach den gewünschten Eigenschaften. So konnte im Bereich von Nähgarnen festgestellt werden, daß dann ausgezeichnete Garne resultieren, wenn hierin als erste Garnkomponente ein Garnmaterial enthallen ist, dessen Elementarfadenzahl zwischen etwa 16 und etwa 300, vorzugsweise zwischen etwa 24 und etwa 96, liegt.Just like the overall titer, the selection of the number of filaments in the yarn according to the invention depends on the desired properties. So it was found in the area of sewing threads that excellent yarns result if the first yarn component contains a yarn material whose number of filaments is between about 16 and about 300, preferably between about 24 and about 96.

Bei dem Herstellungsverfahren für das erfindungsgemäße Garn kann sich nach dem Verwirbelungsschritt eine Reihe von weiteren Verfahren anschließen. Im einfachsten Fall wird das verwirbelte Garn unter geringer Spannung aufgewickelt und steht dann als Fertiggarn der weiteren Verarbeitung zur Verfügung. Ebenso ist es möglich, das verwirbelte Garn nach dem Verwirbelungsschritt zu färben, wobei zweckmäßigerweise bei einer derartigen Verfahrensweise das verwirbelte Garn unmittelbar nach dem Verwirbelungsschritt direkt auf entsprechende Färbehülsen aufgewickelt wird. Beim anschließenden Färbevorgang, insbesondere bei einer HT-Färbung bei etwa 130° C, schrumpft das Garn um etwa 2 bis 3 %, was zu einer Verkleinerung der Durchmesser der in dem erfindungsgemäßen Garn vorhandenen und sich selbst kreuzenden Schlingen bzw. Schlaufen führt, ohne daß diese dabei zu Knoten zusammengezogen werden.In the production process for the yarn according to the invention, a number of further processes can follow after the intermingling step. In the simplest case, the intermingled yarn is wound up under low tension and is then available as finished yarn for further processing. It is also possible to dye the intermingled yarn after the intermingling step, in which case the intermingled yarn is expediently wound directly onto corresponding dye tubes directly after the intermingling step. In the subsequent dyeing process, in particular with HT dyeing at about 130 ° C., the yarn shrinks by about 2 to 3%, which leads to a reduction in the diameter of the loops or loops which cross and intersect in the yarn according to the invention without these are pulled together into knots.

Bei der Herstellung des erfindungsgemäßen Garnes kann nach dem Verwirbelungsschritt und vor dem Aufwickeln das so hergestellte Garn einer Spannungsbehandlung unterworfen werden. Hierdurch werden die Durchmesser der beim Verwirbeln gebildeten sich selbst kreuzenden Schlingen und Schlaufen vorzugsweise soweit verkleinert, daß sie, bezogen auf ihren ursprünglichen Durchmesser, um etwa 20 % bis etwa 95 % verringert sind. Ausdrücklich ist hervorzuheben, daß hierbei jedoch verhindert werden soll, daß sich die Schlaufen und Schlingen zu Knoten zusammenziehen, da sich ansonsten die späteren Verarbeitungseigenschaften eines derartigen Garnes, insbesondere eines Nähgarnes, verschlechtern. So konnte festgestellt werden, daß die in ihrem Durchmesser verkleinerten Schlaufen bzw. Schlingen einen sehr guten Garnzusammenhalt bewirken, was insbesondere wegen der hohen Beanspruchung eines Nähgarns bei der Verarbeitung desselben erwünscht ist. Darüberhinaus besitzt ein derartiges erfindungsgemäßes Nähgarn, wie bereits vorstehend beschrieben, noch ein gewisses Volumen, so daß innerhalb des Garnes Luft eingeschlossen ist, die beim Nähgarn, insbesondere beim Umlenken des Garnes an Fadenleitorganen bzw. der Nadel, herausgepreßt wird. Dies wiederum bewirkt eine Kühlung der Umlenkorgane bzw. der Nadel, so daß bei dieser Ausfuhrungsform des erfindungsgemäßen Garnes keine Fadenbrüche auftreten, was bei einem Vergleichsgarn, bei dem die Schlingen knotenartig zusammengezogen sind, nicht der Fall ist.In the production of the yarn according to the invention, the yarn thus produced can be subjected to a tension treatment after the intermingling step and before winding. As a result, the diameters of the self-crossing loops and loops formed during swirling are preferably reduced to such an extent that they are reduced by about 20% to about 95% with respect to their original diameter. It should be emphasized that, however, this should prevent the loops and loops from contracting into knots, since otherwise the later processing properties of a such yarn, especially a sewing thread, deteriorate. It was thus found that the loops or loops, which are smaller in diameter, bring about very good yarn cohesion, which is desirable in particular because of the high demands placed on a sewing thread during processing. In addition, such a sewing thread according to the invention, as already described above, still has a certain volume, so that air is enclosed within the thread, which is pressed out during sewing thread, in particular when the thread is deflected on thread guide elements or the needle. This in turn causes cooling of the deflecting members or the needle, so that no thread breaks occur in this embodiment of the yarn according to the invention, which is not the case with a comparison yarn in which the loops are pulled together like knots.

Um die zuvor beschriebene Spannungsbehandlung nach dem Verwirbeln durchzuführen, wird das Garn der Spannungsbehandlung mit einer Geschwindigkeit zugeführt, die zwischen 0,1 % und 5 %, insbesondere zwischen 0,1 % und 2,5 % geringer ist als die Geschwindigkeit, mit der das Garn aus der Spannungsbehandlung abgezogen wird. Hierbei hängen die zuvor genannten Geschwindigkeitsdifferenzen einerseits von der gewünschten Verringerung der Durchmesser der sich selbst überkreuzenden Schlaufen und Schlingen und andererseits von der jeweils ausgewählten Voreilung der ersten und zweiten Garnkomponente ab.In order to carry out the tension treatment described above after the intermingling, the yarn is fed to the tension treatment at a speed which is between 0.1% and 5%, in particular between 0.1% and 2.5%, less than the speed at which the Yarn is withdrawn from the tension treatment. The speed differences mentioned above depend on the one hand on the desired reduction in the diameter of the self-crossing loops and loops and on the other hand on the selected advance of the first and second yarn components.

Ebenso kann man zusätzlich zu der Spannungsbehandlung oder anstelle der Spannungsbehandlung eine thermische Behandlung vor dem Aufwickeln des verwirbelten Garnes durchführt, wobei die Temperatur der thermischen Behandlung zwischen etwa 100° C und etwa 250° C, insbesondere zwischen etwa 180° C und etwa 230° C, variiert. Durch eine derartige thermische Behandlung wird dabei, ähnlich wie die zuvor beschriebene, bei Raumtemperatur ablaufende Spannungsbehandlung, eine Verkleinerung der Durchmesser der sich überkreuzenden Schlingen und Schlaufen erreicht, was die zuvor bereits dargelegten Vorteile, insbesondere bei einem Nähgarn, beinhaltet. Darüberhinaus werden durch eine thermische Behandlung die Thermoschrumpfwerte des verwirbelten erfindungsgemäßen Garnes verringert, was sich weiterhin positiv beim späteren Gebrauch derselben im verarbeiteten Zustand ausdrückt. Üblicherweise wird diese thermische Behandlung bei Verweilzeiten zwischen etwa 0,01 s bis etwa 10 s, vorzugsweise zwischen etwa 0,05 s und 1 s, durchgeführt. Bezüglich der Spannung bei der thermischen Behandlung ist festzuhalten, daß man diese spannungslos oder vorzugsweise mit einer gewissen Voreilung durchführt, so daß das so behandelte verwirbelte erfindungsgemäße Garn schrumpfen kann. Insbesondere wird hierbei das Garn mit Geschwindigkeiten der thermischen Behandlung zu geführt, die um 0,1 % bis 10 %, insbesondere um 2 % bis 4 %, höher liegen als die Abzugsgeschwindigkeiten. Hierdurch wird verhindert, daß in dem erfindungsgemäßen Garn unerwünschte Spannungen eingefroren werden, die sich beim späteren Gebrauch, beispielsweise bei einem Nähgarn, durch ein Boldern der Nähte, nachteilig bemerkbar machen.Likewise, in addition to the stress treatment or instead of the stress treatment, a thermal one can be used Treatment is carried out before winding the entangled yarn, the temperature of the thermal treatment varies between about 100 ° C and about 250 ° C, in particular between about 180 ° C and about 230 ° C. Such a thermal treatment, like the previously described tension treatment taking place at room temperature, results in a reduction in the diameter of the intersecting loops and loops, which includes the advantages already set out, in particular in the case of a sewing thread. In addition, the thermal shrinkage values of the intermingled yarn according to the invention are reduced by a thermal treatment, which is furthermore positively expressed when the yarn is subsequently used in the processed state. This thermal treatment is usually carried out with residence times between about 0.01 s to about 10 s, preferably between about 0.05 s and 1 s. With regard to the tension in the thermal treatment, it should be noted that this is carried out without tension or preferably with a certain advance, so that the swirled yarn of the invention treated in this way can shrink. In particular, the yarn is fed at speeds of thermal treatment that are 0.1% to 10%, in particular 2% to 4%, higher than the take-off speeds. This prevents undesirable tensions from being frozen in the yarn according to the invention, which are disadvantageously noticeable in later use, for example in the case of a sewing thread, by bolting the seams.

Um einen besonders guten und stabilen Garnverbund zu erzeugen, sieht eine weitere Ausführungsform des erfindungsgemäßen Garnes vor, daß das verwirbelte Garn gezwirnt ist. Hierbei kann das erfindungsgemäße Garn mit einer Drehung zwischen etwa 10 Drehungen pro m und etwa 800 Drehungen pro m, vorzugsweise zwischen etwa 100 Drehungen pro m und etwa 600 Drehungen pro m, versehen sein. Ein derartiges Zwirnen des erfindungsgemäßen Garnes kann als integrierter Schritt in einem der vorstehend beschriebenen Verfahren vor dem Aufwickeln des Garnes durchgeführt werden. In vielen Fällen ist es jedoch besser, das erfindungsgemäße Garn in einem separaten Arbeitsschritt nach dem Aufwickeln zu zwirnen, da sich ansonsten die Produktionsgeschwindigkeit nach dem relativ langsamen Zwirnen richten müßte.In order to produce a particularly good and stable yarn composite, a further embodiment of the yarn according to the invention provides that the intermingled yarn is twisted. Here, the yarn according to the invention with a rotation between about 10 turns per m and about 800 turns per m, preferably between about 100 turns per m and about 600 turns per m. Such twisting of the yarn according to the invention can be carried out as an integrated step in one of the above-described methods before the yarn is wound up. In many cases, however, it is better to twist the yarn according to the invention in a separate working step after winding up, since otherwise the production speed would have to depend on the relatively slow twisting.

Bei einer besonders geeigneten Ausführungsform des erfindungsgemäßen Garnes, die insbesondere als Nähgarn geeignet ist, weist das Garn als erste Garnkomponente ein einziges Multifilamentgarn auf, das den vorstehend genannten Einzeltiterbereich, den Filamentzahlbereich und eine spezifische Festigkeit zwischen 60 cN/tex und 75 cN/tex besitzt. Dieses Multifilamentgarn ist mit den vorstehend genannten Voreilungen mit einem zweiten Multifilamentgarn als zweite Garnkomponente unter Ausbildung des erfindungsgemäßen Garnes verwirbelt, wobei die zweite Garnkomponente den bereits vorstehend aufgeführten Einzeltiterbereich aufweist und mit der bereits genannten Voreilung dem Verwirbelungsschritt zugeführt ist. Anschließend wird das so hergestellte verwirbelte Garn unter den vorstehend genannten Bedingungen bei Raumtemperatur verstreckt und danach in eine thermische Behandlung überführt, wobei die vorstehend genannten Temperaturen, Spannungen und Verweilzeiten angewendet werden. Hiernach wickelt man das so hergestellte Nähgarn auf und zwirnt, färbt und/oder aviviert es danach.In a particularly suitable embodiment of the yarn according to the invention, which is particularly suitable as a sewing thread, the yarn has as the first yarn component a single multifilament yarn which has the above-mentioned single titer range, the number of filaments and a specific strength between 60 cN / tex and 75 cN / tex . This multifilament yarn is interwoven with the aforementioned leads with a second multifilament yarn as the second yarn component to form the yarn according to the invention, the second yarn component having the individual titer range already mentioned above and being fed to the interlacing step with the aforementioned lead. The intermingled yarn thus produced is then drawn at room temperature under the abovementioned conditions and then transferred to a thermal treatment, the abovementioned temperatures, tensions and residence times being used. Then you wind up the sewing thread thus produced and twist, dye and / or finish it afterwards.

Das erfindungsgemäße Garn wird nachfolgend anhand eines mikroskopischen Fotos des Garnes sowie durch Ausführungsbeispiele näher erläutert.The yarn according to the invention is explained in more detail below on the basis of a microscopic photo of the yarn and by means of exemplary embodiments.

Ein insgesamt in dem elektronenrastermikroskopischen Foto mit 1 bezeichnetes Garn, bei dem es sich um ein Nähgarn handelt, weist als erste Garnkomponente ein Seelenmaterial 2 auf, bei dem es sich um ein Multifilamentgarn handelt. Hierbei ist das Seelenmaterial 2 mit einer zweiten Garnkomponente 3, die auch üblicherweise als Effektgarnkomponente bzw. Effektgarn bezeichnet wird, verwirbelt. Ebenso wie das Seelenmaterial 2 besteht die Effektgarnkomponente 3 aus einem Multifilamentgarn. Wie aus dem beigefügten Foto zu erkennen ist, ist die Effektgarnkomponente 3 überwiegend im äußeren Bereich des Garnes 1 angeordnet und bildet dort in bezug auf das sich überwiegend geradlinig in Axialrichtung erstreckende Seelenmaterial 2 sich selbst überkreuzende Schlaufen 4 bzw. Schlingen 5. Wie auf dem Foto zu erkennen ist, weisen die sich selbst überkreuzenden Schlaufen 4 unterschiedliche Schlaufendurchmesser auf, sind jedoch nicht knotenartig zusammengezogen.A yarn, which is denoted overall by 1 in the electron scanning microscope photo and which is a sewing yarn, has a core material 2 as the first yarn component, which is a multifilament yarn. Here, the core material 2 is interwoven with a second yarn component 3, which is also usually referred to as fancy yarn component or fancy yarn. Like the core material 2, the fancy yarn component 3 consists of a multifilament yarn. As can be seen from the attached photo, the fancy yarn component 3 is predominantly arranged in the outer region of the yarn 1 and forms self-crossing loops 4 or loops 5 with respect to the core material 2, which mainly extends in a straight line in the axial direction. As in the photo It can be seen that the self-crossing loops have 4 different loop diameters, but are not pulled together like knots.

Bei dem abgebildeten Garn ist als Seelenmaterial 2 ein Multifilamentgarn eingesetzt, das eine spezifische Festigkeit von 70 cN/tex, eine Elementarfadenzahl von 64 und einen Einzeltiter von etwa 3,6 dtex aufweist. Das Effektmaterial 3 besteht bei dem abgebildeten Garn 1 aus einem vororientierten Multifilamentgarn (POY-Garn), das über einen auf 130° C geheizten Stift mit einem Durchmesser von 70 mm bei einem Vorverstreckungsverhältnis von 1 : 1,7 verstreckt wurde und eine Einzelfilamentzahl von 24 aufweist, wobei der Einzelfilamenttiter etwa 3,4 dtex beträgt. Der Gesamttiter des Garnes 1 liegt nach dem Verwirbeln bei etwa 300 dtex. Die absolute Festigkeit des Garnes 1 beträgt 1300 cN.In the yarn shown, a multi-filament yarn is used as core material 2, which has a specific strength of 70 cN / tex, an elementary thread count of 64 and a single titer of about 3.6 dtex. The effect material 3 consists of a pre-oriented yarn 1 Multifilament yarn (POY yarn) which has been drawn over a pin heated to 130 ° C. with a diameter of 70 mm and a pre-drawing ratio of 1: 1.7 and has a single filament number of 24, the single filament titer being about 3.4 dtex. The total titer of yarn 1 after swirling is about 300 dtex. The absolute strength of yarn 1 is 1300 cN.

Von dem abgebildeten Garn wurden die vom Garn abstehenden Schlingen 4 bzw. Schlaufen 5 gemessen. Hierzu wurde das Garn senkrecht zu einem gebündelten Lichtstrahl transportiert, der von einer entsprechenden Lichtquelle erzeugt wurde. Hierbei war der Lichtquelle in einer Ebene gegenüberliegend eine Fotozelle angeordnet, so daß die von einer Schlinge 4 bzw. Schlaufe 5 hervorgerufene Unterbrechung des Lichtstrahls von der Fotozelle erfaßt und entsprechend addiert wurde. Diese Messung wurde bei einem Abstand des Lichtstrahles vom Garn von 0,5 mm und 1 mm durchgeführt. Bei einem Abstand des Lichtstrahles von 0,5 mm oberhalb des Garnes konnten 160 Unterbrechungen pro m und bei einem Abstand von 1 mm 18 Unterbrechungen pro m gemessen werden. Hieraus ist zu schließen, daß vom Garnverbund relativ wenige Schlingen bzw. Schlaufen in einem Abstand größer als 1 mm abstehen. Ebenso wurde das vorstehend beschriebene Garn industriellen Nähversuchen unterworfen. Hierbei stellte man im Vergleich zu einem konventionell gezwirnten Garn und zu einem Garn, das entsprechend der EP-B 00 57 583 knotenartig zusammengezogene Schlingen aufwies, fest, daß das vorstehend beschriebene Garn auch bei hohen Nähgeschwindigkeiten von etwa 6000 bis 7000 Stichen pro m keine Faden- bzw. Kapillarbrüche oder Kapillaraufschiebungen zeigte, während sowohl bei dem konventionell gezwirnten Garn als auch bei dem Garn, bei dem die Schlaufen knotenartig zusammengezogen waren, häufig der Nähvorgang aufgrund von Fadenbrüchen und Kapillaraufschiebungen unterbrochen werden mußte, obwohl alle Garne aus den gleichen Ausgangsmaterialien hergestellt wurden.The loops 4 and loops 5 protruding from the yarn were measured from the yarn depicted. For this purpose, the yarn was transported perpendicular to a bundled beam of light, which was generated by a corresponding light source. In this case, a photocell was arranged in a plane opposite the light source, so that the interruption of the light beam caused by a loop 4 or loop 5 was detected by the photocell and added accordingly. This measurement was carried out at a distance of the light beam from the yarn of 0.5 mm and 1 mm. With a distance of the light beam of 0.5 mm above the yarn, 160 interruptions per m and at a distance of 1 mm 18 interruptions per m were measured. It can be concluded from this that relatively few loops or loops protrude from the yarn composite at a distance greater than 1 mm. The yarn described above was also subjected to industrial sewing trials. It was found in comparison with a conventionally twisted yarn and a yarn which, according to EP-B 00 57 583, had loops drawn together in knots, that the yarn described above did not contain any thread even at high sewing speeds of about 6000 to 7000 stitches per m - or capillary breaks or capillary deferrals, while both the conventionally twisted yarn and the yarn in which the loops were knotted together, often the sewing process due to thread breaks and Capillary deferrals had to be interrupted, even though all yarns were made from the same raw materials.

Um die Anfärbbarkeit des Garnes zu untersuchen, wurde eine Reihe von Färbeversuchen mit verschiedenen Farbstoffkombinationen und unterschiedlichen Garnen durchgeführt. Da alle Garne aus Polyester waren, wurden diese bei einer Endtemperatur von 130° C gefärbt. Für die Färbungen wurde folgender Temperaturverlauf ausgewählt:
Starttemperatur: 70° C
Aufwärtsgeschwindigkeit auf 130° C mit 2° C/min
Verweilzeit bei 130° C: 45 Minuten
Abkühlung auf 80° C mit 2° C/min
Nach dem Färben wurden die Garne zweimal kalt und heiß gespült und anschließend konventionell getrocknet. Die Färbeflotten wurden jeweils durch Zugabe von Essigsäure und Natriumacetat auf einen pH-Wert von 4,5 eingestellt. Ferner wiesen alle Flotten 0,5 g/l eines Dispergier-/Egalisiermittels (Lewegal HTN, Firma Bayer) auf. Zur Anwendung gelangten folgende Farbstoffkombinationen:In order to investigate the dyeability of the yarn, a number of dyeing tests were carried out with different dye combinations and different yarns. Since all the yarns were made of polyester, they were dyed at a final temperature of 130 ° C. The following temperature profile was selected for the dyeings:
Starting temperature: 70 ° C
Upward speed to 130 ° C at 2 ° C / min
Residence time at 130 ° C: 45 minutes
Cool to 80 ° C at 2 ° C / min
After dyeing, the yarns were rinsed twice cold and hot and then dried conventionally. The dye liquors were adjusted to pH 4.5 by adding acetic acid and sodium acetate. Furthermore, all liquors had 0.5 g / l of a dispersing / leveling agent (Lewegal HTN, Bayer). The following dye combinations were used:

Farbstoffkombination I:Dye combination I:

0,5 % Resolingelbbraun 3 GL, 200 %ig
   (C. I. Disperse orange 29)
0,25 % Resolinrot FB, 200 %ig
   (C. I. Disperse red 60)
1 % Resolinmarineblau 2 GLS, 200 %ig
   ( C.I. Disperse blue 79)0.5% resol yellow-brown 3 GL, 200%
(CI Disperse orange 29)
0.25% Resolin Red FB, 200%
(CI Disperse red 60)
1% Resolin Navy Blue 2 GLS, 200%
(CI Disperse blue 79)

Farbstoffkombination II:Dye combination II:

3 % Resolinmarineblau 2 GLS, 200 %ig
   (C. I. Disperse blue 79)
0,15 % Resolingelb 5 GL, 200 %ig
0,8 % Resolinrot BBL, 200 %ig3% Resolin Navy Blue 2 GLS, 200%
(CI Disperse blue 79)
0.15% resol yellow 5 GL, 200%
0.8% Resolin Red BBL, 200%

Farbstoffkombination III:Dye combination III:

0,5 % Resolinblau BBLS, 200 %ig
   (C. I. Disperse blue 165)
1,5 % Resolingelbbraun 3 GL, 200 %ig
   (C. I. Disperse orange 29)
0,5 % Resolinrot FB, 200 %ig
   (C. I. Disperse red 60)0.5% resoline blue BBLS, 200%
(CI Disperse blue 165)
1.5% resol yellow-brown 3 GL, 200%
(CI Disperse orange 29)
0.5% Resolin Red FB, 200%
(CI Disperse red 60)

Farbstoffkombination IV:Dye combination IV:

0,1215 % Resolinorange K-3GLS
0,0265 % Resolinrot K-2BLS
0,0275 % Palanilbrillantblau BGF
0,024 % Resolinblau K-RLS0.1215% Resolin Orange K-3GLS
0.0265% Resolin Red K-2BLS
0.0275% palanil brilliant blue GFA
0.024% resoline blue K-RLS

Für die Färbeversuche wurden die folgenden Garne eingesetzt:The following yarns were used for the dyeing tests: Garn 1:Yarn 1:

Erste Garnkomponente: Ein Multifilamentgarn mit einer spezifischen Festigkeit von 65 cN/tex und einem Einzelfilamenttiter von etwa 4,8 dtex.First yarn component: A multifilament yarn with a specific strength of 65 cN / tex and a single filament titer of around 4.8 dtex.

Zweite Garnkomponente: Ein Multifilamentgarn einer textilen Standardtype mit einem Einzelfilamenttiter von etwa 3 dtex.Second yarn component: a multifilament yarn of a standard textile type with a single filament titer of about 3 dtex.

Garn 2:Yarn 2:

Erste Garnkomponente: Wie bei Garn 1.First yarn component: As for yarn 1.

Zweite Garnkomponente: Ein Multifilamentgarn einer vororientierten (POY) Faser, die bei einem Vorverstreckungsverhältnis von 1 : 1,7 über einen 130° C heißen Stift mit einem Durchmesser von 70 mm vorverstreckt ist, Einzelfilamenttiter 3 dtex.Second yarn component: a multifilament yarn of a pre-oriented (POY) fiber, which is pre-drawn at a pre-drawing ratio of 1: 1.7 via a 130 ° C hot pin with a diameter of 70 mm, single-filament titer 3 dtex.

Garn 3:Yarn 3:

Erste Garnkomponente: Wie bei Garn 1 und 2.First yarn component: As for yarn 1 and 2.

Zweite Garnkomponente: Ein Multifilamentgarn wie Garn 2 vorverstreckt, jedoch mit einem Einzelfilamenttiter von etwa 1,5 dtex.Second yarn component: A multifilament yarn like yarn 2 pre-drawn, but with a single filament titer of about 1.5 dtex.

Garn 4:Yarn 4:

Erste Garnkomponente: Ein Multifilamentgarn mit einer spezifischen Festigkeit von 70 cN/tex und einem Einzelfilamenttiter von etwa 2,8 dtex.First yarn component: A multifilament yarn with a specific strength of 70 cN / tex and a single filament titer of around 2.8 dtex.

Zweite Garnkomponente: Ein Multifilamentgarn eines textilen Standardmaterials mit einem Einzelfilamenttiter von etwa 1,2 dtex.Second yarn component: A multifilament yarn of a standard textile material with a single filament titer of approximately 1.2 dtex.

Garn 5:Yarn 5:

Erste Garnkomponente: Wie Garn 4.First yarn component: Like yarn 4.

Zweite Garnkomponente: Wie Garn 3.Second yarn component: Like yarn 3.

Garn 6:Yarn 6:

Erste und zweite Garnkomponente: Jeweils ein Multifilamentgarn mit einer spezifischen Festigkeit von 68 cN/tex, Einzelfilamenttiter der ersten Garnkomponente: 5 dtex, Einzelfilamenttiter der zweiten Garnkomponente: 1,2 dtex.First and second yarn components: each a multifilament yarn with a specific strength of 68 cN / tex, single filament titer of the first yarn component: 5 dtex, single filament titer of the second yarn component: 1.2 dtex.

Garn 7:Yarn 7:

Erste Garnkomponente: Ein Multifilamentgarn mit einer spezifischen Festigkeit von 62 cN/tex und einem Einzelfilamenttiter von etwa 5,5 dtex.First yarn component: A multifilament yarn with a specific strength of 62 cN / tex and a single filament titer of around 5.5 dtex.

Zweite Garnkomponente: Ein textiles Standardmultifilamentgarn mit einem Einzelfilamenttiter von etwa 5,5 dtex.Second yarn component: A textile standard multifilament yarn with a single filament titer of about 5.5 dtex.

Die Färbeversuche der Garne zeigten, daß alle Garne 1 bis 5 mit den vorstehenden Farbstoffkombinationen I bis IV sowohl vom Farbton als auch von der Farbtiefe gleichmäßig angefärbt waren, d.h. die erste Garnkomponente färbte sich nicht unterschiedlich zur zweiten Garnkomponente an. Beim Garn 6 konnte man geringe visuelle Farbton- und Farbtiefenunterschiede feststellen, die zu akzeptieren sind.The dyeing tests of the yarns showed that all yarns 1 to 5 with the above dye combinations I to IV had both the shade and the depth of color evenly dyed, i.e. the first yarn component was not colored differently from the second yarn component. With yarn 6, slight visual differences in color and depth of color were found, which are acceptable.

Garn 7 zeigte deutliche Farbton- und Farbtiefenunterschiede, so daß dieses Garn trotz gleicher Einzelfilamenttlter wegen der bevorstehenden Farbunterschiede nicht geeignet ist.Yarn 7 showed clear color and depth differences, so that this yarn is not suitable despite the same single filament filter because of the upcoming color differences.

Claims (11)

  1. A yarn (1), in particular a sewing yarn, which consists of a first yarn component (2), comprising at least one multifilament yarn, said first yarn component (2) being intermingled with at least one second yarn component (3) so that the yarn (1) is formed, said intermingled yarn having an absolute strength of between 444,4 cN and 12.000 cN, the mass ratio of the first yarn component (2) to the second yarn component (3) varying between about 90 : 10 and about 50 : 50, preferably between 85 : 15 and 70 : 30, and the yarn (1) comprising a first yarn component (2) with a total titre of between 100 dtex and 1.000 dtex, preferably of between 100 dtex and 600 dtex.
  2. The yarn according to claim 1, characterized in that the intermingled yarn (1) has an absolute strength of between 1.300 cN and 5.500 cN.
  3. The yarn according to claim 1 or 2, characterized in that the intermingled yarn (1) has a specific strength of between 40 cN/tex and 60 cN/tex.
  4. The yarn according to one of the claims 1 - 3 characterized in that the yarn (1) comprises a first yarn component (2) with a specific strength of between 60 cN/tex and 75 cN/tex.
  5. The yarn according to one of the claims 1 - 4, characterized in that the yarn (1) consists of a first yarn component (2) as core material, which is intermingled with a second yarn component (3) as effect yarn, forming self-crossing loops and slings, both yarn components (2, 3) comprising only one multifilament yarn each, said multifilament yarn of the first yarn component (2) having a specific strength of between about 60 cN/tex and about 75 cN/tex and a single filament titre of between about 2 dtex and about 5 dtex, preferably between 2,5 dtex and about 4 dtex, and the multifilament yarn of the second yarn component (3) having a single filament titre of between about 0,8 dtex and about 5 dtex, preferably between about 1 dtex and about 4 dtex.
  6. The yarn according to one of the claims 1 - 5, characterized in that the second yarn component (3) is a POY multifilament yarn with a specific strength of between 20 cN/tex and 75 cN/tex, preferably between 30 cN/tex and 45 cN/tex or 60 cN/tex and 75 cN/tex.
  7. The yarn according to one of the claims 1 - 6, characterized in that the second yarn component (3) is an multifilament yarn which is not opaque.
  8. The yarn according to one of the claims 1 - 7, characterized in that the first yarn component (2) comprises a yarn material, the molecular weight of which, determined viscosimetrically, is by 5 % to 50 %, preferably by 10 % to 25 %, higher compared with the molecular weight, determined viscosimetrically, of an otherwise chemically identical textile standard fibre.
  9. The yarn according to one of the claims 1 - 8, characterized in that the first yarn component (2) has a number of elementary yarns of between 16 and 300, preferably of between 24 and 96.
  10. The yarn according to one of the claims 1 - 9, characterized in that the ready yarn (1) comprises a twist of between 10 twists/m and 800 twists/m, preferably between 100 twists/m and 600 twists/m.
  11. The yarn according to one of the claims 1 - 10, characterized in that the first (2) and the second (3) yarn component consist of polyester fibres.
EP91112663A 1988-09-17 1989-09-07 Yarn, in particular a sewing yarn Expired - Lifetime EP0463635B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3831700A DE3831700A1 (en) 1988-09-17 1988-09-17 METHOD FOR THE PRODUCTION OF A YARN, IN PARTICULAR A SEWING YARN, AND A YARN
DE3831700 1988-09-17
EP89116516A EP0367938B1 (en) 1988-09-17 1989-09-07 Method for making a yarn, particularly a sewing yarn, and yarn so obtained

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP89116516A Division EP0367938B1 (en) 1988-09-17 1989-09-07 Method for making a yarn, particularly a sewing yarn, and yarn so obtained
EP89116516.9 Division 1989-09-07

Publications (2)

Publication Number Publication Date
EP0463635A1 EP0463635A1 (en) 1992-01-02
EP0463635B1 true EP0463635B1 (en) 1995-12-20

Family

ID=6363188

Family Applications (2)

Application Number Title Priority Date Filing Date
EP89116516A Expired - Lifetime EP0367938B1 (en) 1988-09-17 1989-09-07 Method for making a yarn, particularly a sewing yarn, and yarn so obtained
EP91112663A Expired - Lifetime EP0463635B1 (en) 1988-09-17 1989-09-07 Yarn, in particular a sewing yarn

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP89116516A Expired - Lifetime EP0367938B1 (en) 1988-09-17 1989-09-07 Method for making a yarn, particularly a sewing yarn, and yarn so obtained

Country Status (6)

Country Link
EP (2) EP0367938B1 (en)
AT (2) ATE74974T1 (en)
DE (3) DE3831700A1 (en)
ES (2) ES2032089T3 (en)
HK (1) HK184396A (en)
SG (1) SG88892G (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5146738A (en) * 1987-05-15 1992-09-15 Amann Und Sohne Gmbh & Co. Thread having looped effect yarn intermingled with multi-filament core yarn
DE3720237A1 (en) * 1987-06-15 1989-01-05 Amann & Soehne METHOD FOR PRODUCING AIR BLOW TEXTURED SEWING THREAD
DE3834139A1 (en) * 1988-10-07 1990-04-19 Hoechst Ag TWO-COMPONENT LOOP SEWING YARN AND METHOD FOR THE PRODUCTION THEREOF
DE4215212A1 (en) * 1992-05-12 1993-11-18 Amann & Soehne Core yarn and process for producing a core yarn
DE4215015A1 (en) * 1992-05-12 1993-11-18 Amann & Soehne Stretching process
DE4215016A1 (en) * 1992-05-12 1993-11-18 Amann & Soehne High-strength sewing thread and method for producing such a sewing thread
DE59308918D1 (en) * 1992-07-10 1998-10-01 Hoechst Ag Process for heat treatment of moving yarns and device for carrying out this treatment
EP0586951B1 (en) * 1992-08-26 1999-10-06 Hoechst Aktiengesellschaft Bicomponent looped yarns with a fine yarn count and high strength, method of production and their use as sewing and embroidery threads
EP0602489B1 (en) * 1992-12-18 1997-05-07 Amann & Söhne GmbH & Co. Sewing yarn made of synthetic and/or natural fibres
DE59505342D1 (en) * 1994-01-20 1999-04-22 Hoechst Ag Two-component loop yarns, process for their production and their use as sewing threads and embroidery threads
DE4401512A1 (en) * 1994-01-20 1995-07-27 Hoechst Ag Bi:component air textured yarn for sewing threads
DE4443456A1 (en) 1994-12-07 1996-07-04 Hoechst Trevira Gmbh & Co Kg Two-component loop yarns made from aramid filaments, process for their production and their use
DE19627010C1 (en) * 1996-07-04 1997-12-11 Madeira Garnfabrik Rudolf Schm Process for producing a low shrinkage yarn
DE19643685C2 (en) * 1996-10-23 2001-05-17 Trevira Gmbh & Co Kg Process for producing a group of mixed yarns and their use
DE19817418A1 (en) * 1998-04-18 1999-10-21 Schoeller Textil Gmbh & Co Kg Application of surface finish to fibers for rovings and yarns
DE10301925A1 (en) * 2003-01-17 2004-07-29 Deutsche Institute für Textil- und Faserforschung Production of multi-component, multi-filament thread with varied shrinkage characteristics, processes components separately and continuously then combines them

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080777A (en) * 1976-09-13 1978-03-28 Akzona Incorporated Novelty yarns
ZA82486B (en) * 1981-02-04 1982-12-29 Coats Ltd J & P Synthetic yarn and yarn-like structures and a method and apparatus for their production
DE3431834A1 (en) * 1984-08-30 1986-03-06 Hoechst Ag, 6230 Frankfurt HIGH-STRENGTH SUPPLY THREADS FOR SEWING YARNS AND METHOD FOR THEIR PRODUCTION
US4615167A (en) * 1985-01-04 1986-10-07 Greenberg Neville G Highly entangled thread development
DE3720237A1 (en) * 1987-06-15 1989-01-05 Amann & Soehne METHOD FOR PRODUCING AIR BLOW TEXTURED SEWING THREAD

Also Published As

Publication number Publication date
DE58901175D1 (en) 1992-05-21
ES2032089T3 (en) 1993-01-01
DE3831700C2 (en) 1990-09-13
ATE74974T1 (en) 1992-05-15
EP0367938B1 (en) 1992-04-15
EP0367938A3 (en) 1990-12-27
DE3831700A1 (en) 1990-03-22
EP0463635A1 (en) 1992-01-02
ATE131881T1 (en) 1996-01-15
DE58909540D1 (en) 1996-02-01
EP0367938A2 (en) 1990-05-16
SG88892G (en) 1993-04-16
ES2082891T3 (en) 1996-04-01
HK184396A (en) 1996-10-11

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