EP0048453A1 - Conjugate filament yarn of the matrix/segments type, its production and its use in textile fabrics - Google Patents
Conjugate filament yarn of the matrix/segments type, its production and its use in textile fabrics Download PDFInfo
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- EP0048453A1 EP0048453A1 EP19810107362 EP81107362A EP0048453A1 EP 0048453 A1 EP0048453 A1 EP 0048453A1 EP 19810107362 EP19810107362 EP 19810107362 EP 81107362 A EP81107362 A EP 81107362A EP 0048453 A1 EP0048453 A1 EP 0048453A1
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- Prior art keywords
- titer
- segments
- matrix
- fibers
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Classifications
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- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/36—Matrix structure; Spinnerette packs therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
- Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3146—Strand material is composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
- Y10T442/3163—Islands-in-sea multicomponent strand material
Definitions
- the invention relates to a process for the production of filament yarns from multi-component fibers of the matrix / segment type and their further processing into textile fabrics, in particular into fabrics and knitted fabrics.
- Multi-component fibers of the matrix / segment type have been known for a long time.
- French patent 1,325,529 describes fibers of this type with a wide variety of cross sections.
- the characteristic of such matrix / segment threads is that the so-called segments are completely or partially covered by the second component, namely the matrix.
- German patent application 2 809 346 describes a process in which multicomponent fibers are treated with special organic solvents in which the individual components are not soluble, but in which the multicomponent fibers have such a favorable shrinkage behavior that an extremely fast and practically complete cleavage takes place in matrix and segment components.
- the fiber structures described there are particularly characterized by a natural, silk-like feel.
- German Offenlegungsschrift 2 908 101 describes a method in which multi-component fibers of the matrix / segment type are subjected to a special false twist treatment, so that the individual components are connected in whole or in part in the thread structure at irregular intervals through the thread cross-section, in part or completely, by means of adhesive points.
- the threads described in the last-mentioned publication also have a silk-like character and can - if they are used as warp yarns - be used without prior sizing and / or twisting.
- the silk-like character of the yarn and the textile fabrics is mainly caused by the presence of segment fibers with low titer and their special arrangement in the fabric.
- the titer of the segment fibers is usually below 0.6 dtex. If, on the one hand, the low titers are of great advantage, in particular for comfort, they have the disadvantage, however, that the textile fabrics tend to crease more and the crease recovery also leaves something to be desired in many cases.
- Textile fabrics made from the threads or yarns mentioned above also cause certain difficulties in dyeing. For example, the dyeings are generally lighter if the same amount of dye is used as is otherwise used for dyeing textile fabrics, for example if wants to dye fabrics made from conventional polyester yarns. Furthermore, it is difficult to achieve deep dyeings with sufficient fastness using large amounts of dye.
- This object is segment type and dissolved atrix by a process for producing filament yarns from multicomponent fibers of the M / optionally their further processing into a textile fabric, which is characterized in that multi-component fibers, the segments contain different titer, wherein the ratio of lower denier to higher denier is between about 1: 1.6 and 1.30 and the weight ratio of low-titer segments to higher-titer segments in the yarn is between about 25: 75 and 75: 25, textured according to the false twist process and applying a fixing temperature that corresponds at least to the melting temperature of the matrix components , the fibers due to the softening matrix component be glued to one another, in parts or almost over the entire length, in whole or in part over the cross section of the yarn, and the yarns may be subjected to a shrinking treatment, in particular after they have been processed into a textile fabric.
- multi-component fibers that contain segments of different titers and different profiles.
- a fixing temperature of 190 to 230 ° C. is preferably used.
- Multi-component fibers with peripheral segments of different titers can be used, but multi-component fibers with low-titer peripheral segments and high-titer segments completely covered by the matrix are also suitable.
- polyamide as the matrix component and polyester as the segment component, preferably as the polyester component polyethylene terephthalate and as the polyamide component polyamide-6.
- Methylene chloride is particularly suitable for the shrinking treatment. It is also possible to carry out the shrinking treatment in water with simultaneous exposure to mechanical forces; the shrinking treatment can be combined with a dyeing process or a washing process. Tumbling in hot air is also possible to carry out the shrinking treatment.
- the proportion of the matrix in the multicomponent fibers is advantageously between 5 and 45%, preferably between 7.5 and 20%.
- the invention further relates to filament yarns made from wholly or partially split multicomponent fibers of the matrix / segment type, characterized in that the M ehrkomponentenmaschinen segments different titer contained, wherein the ratio of lower denier to higher denier between about 1: 1.6 and 1: 30 and the weight ratio Although low segments regardingtitrigen segments in the yarn is between about 25: is 25 and the individual components: 75 and 75 all or part of the thread assembly are connected at irregular intervals by the thread cross-section through adhesive points or in certain areas.
- filament yarns made of wholly or partially split multicomponent fibers of the matrix / segment type, characterized in that the multicomponent fibers contain segments of different titers, the ratio of low titer to higher titer being approximately between 1: 1.6 and 1.30 and the weight ratio of low-titer segments to higher-titer segments in the yarn is between about 25:75 and 75 25 and the individual components as a whole or in part are bonded to one another almost over the entire length.
- filament yarns are characterized by an M ehrkomponentenfaserchietitrigen with at least 10 peripheral segments and a molethen completely enveloped by the matrix segment, wherein the ratio of low responding to higher titer is about 1: 30 25 to the first
- the invention further relates to textile fabrics, such as fabrics, knitted fabrics or the like, which contain the above-mentioned filament yarns.
- the filament yarns preferably have in the textile fabrics low-titer segment fibers with a titer of less than 0.6 dtex and higher-titer segment fibers with a titer of at least 1 dtex. It is advantageous if the number of glue points is between about 3 and 80 per meter.
- a cross section, as shown in FIG. 3 of DE-OS 2 803 136, is modified such that there are at least 10, preferably 12, peripheral segments and 1 core segment (see illustration of the application ).
- z. B .i m range from about .08 to 0.1 dtex and a segment containing grobtitriges whose titre dtex to 2.6 about 2.2.
- a valuable yarn made from such multicomponent fibers can contain 15 fibers, for example, and thus has 180 fine and 15 coarse segments (see table in Example 3).
- Nozzles with the desired cross sections can be mounted on a common nozzle plate, so that the required number of multi-component fibers for the filament yarn is immediately obtained from a spinning station.
- the multicomponent fibers, which have the structure required according to the invention with regard to the segments, are then drawn and / or subjected to false twist treatment, a fixing temperature being used which corresponds at least to the melting temperature of the matrix components. Details of this process can be found in DE-OS 2 908 1O1, to which reference is expressly made here.
- the shrinking treatment of the yarns which is preferably carried out after they have been processed into a textile fabric, can advantageously take place by a method as described in DE-OS 2 809 346.
- the solvent methylene chloride specified in this published specification is particularly suitable for shrinking treatment.
- fibrillation and splitting of the multicomponent fibers into segments reference is expressly made to the disclosure of laid-open specification No. 2 809 346.
- the false twist textured yarns have an excellent company to denschluß and can be processed without major difficulties. They can be up with great velocity ke th and uncoil, without causing segment of parts because of the segments to thread breakage or splitting off. Special de rs is advantageous that the yarns directly without, can be that they are simple and would rotate further processed as a chain. This is not only advantageous because it saves the finishing step, but also because an environmentally harmful processing step is eliminated.
- the yarns develop a large volume after they have been processed into a textile fabric and after the shrinkage has been triggered, so that excellent covering power is obtained.
- the fine segments which form a fine, delicate loop pile on the textile structure, result in a particularly pleasant grip. They also act as a spacer between the skin and the textile fabrics, so that on the one hand the garment feels very comfortable on the skin, but on the other hand sufficient air circulation can take place on the skin, so that it is particularly pleasant to wear when sweating.
- the segments in the false twist textured filament yarn have different relaxation and shrinkage processes healed up.
- the grip and the volume of the textile structure are thereby influenced in a particularly advantageous manner.
- the yarns according to the invention are suitable for the production of conventional textile fabrics, such as woven goods and knitted fabrics. They can be easily processed on common looms and knitting machines.
- Textile fabrics according to the invention are distinguished by improved wrinkle properties, in particular by a reduced tendency to wrinkle and an improved wrinkle recovery.
- the amount of dye can be reduced by at least 10%, often by considerably more, compared to dyeing textiles made from conventional matrix / segment yarns.
- the fastnesses are satisfactory.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Multicomponent Fibers (AREA)
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
Abstract
Filamentgarne aus Mehrkomponentenfasern des Matrix Segmenttyps werden hergestellt und weiterverarbeitet zu einem textilen Flächengebilde, indem man Mehrkomponentenfasern, die Segmente unterschiedlichen Titers enthalten, nach dem Falschdrallverfahren texturiert, so daß durch die dabei aufweichende Matrix punktuell bereichsweise oder nahezu über die ganze Länge des Garns Verklebungen auftreten. Nach ihrer Verarbeitung zu einem textilen Flächengebilde wird eine Schrumpfbehandlung durchgeführt. Die dabei erhaltenen Gewebe u.dgl. weisen eine verringerte Knitterneigung, eine bessere Knittererholung und besseres Färbeverhalten auf. Der Titer der niedrigtitrigen Segmente soll kleiner als 0,6 dtex und der Titer der höhertitrigen Segmente mindestens 1 dtex betragen; das Gewichtsverhältnis niedrigtitrige Segmente zu höhertitrigen Segmenten im Garn liegt etwa zwischen 25 : 75 und 75 : 25. Die Matrix besteht vorzugsweise aus Polyamid-6 und die Segmente aus Polyäthylenterephthalat. Als Querschnitte eignen sich beispielsweise folgende Profile: Zahnradprofil mit feinen peripheren Segmenten und gröberem Kernsegment, Kombinationen von Dreierzahnrad und 12er oder 6er Zahnradprofil oder entsprechende Kombinationen von Orangenprofilen, beispielsweise 3er und 6er Orange.Filament yarns made of multi-component fibers of the matrix segment type are manufactured and processed into a textile fabric by texturing multi-component fibers containing segments of different titers according to the false twist method, so that the softening matrix results in sticking in places or almost over the entire length of the yarn. After being processed into a textile fabric, a shrinking treatment is carried out. The tissue thus obtained and the like. have a reduced tendency to wrinkle, better wrinkle recovery and better dyeing behavior. The titer of the low-titer segments should be less than 0.6 dtex and the titer of the higher-titer segments at least 1 dtex; the weight ratio of low-titer segments to higher-titer segments in the yarn is approximately between 25:75 and 75:25. The matrix preferably consists of polyamide-6 and the segments of polyethylene terephthalate. The following profiles are suitable as cross-sections: gear profile with fine peripheral segments and coarser core segment, combinations of triple gear and 12 or 6 gear profile or corresponding combinations of orange profiles, e.g. 3 and 6 orange.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Filamentgarnen aus Mehrkomponentenfasern des Matrix/Segmenttyps und deren Weiterverarbeitung zu textilen Flächengebilden, insbesondere zu Geweben und Maschenwaren.The invention relates to a process for the production of filament yarns from multi-component fibers of the matrix / segment type and their further processing into textile fabrics, in particular into fabrics and knitted fabrics.
Mehrkomponentenfasern des Matrix/Segmenttyps sind bereits seit langem bekannt. So werden beispielsweise in der französischen Patentschrift 1 325 529 Fasern dieser Art mit verschiedensten Querschnitten beschrieben. Das Charakteristische derartiger Matrix/Segmentfäden ist, daß die sogenannten Segmente ganz oder teilweise von der zweiten Komponente, nämlich der Matrix, umhüllt sind.Multi-component fibers of the matrix / segment type have been known for a long time. For example, French patent 1,325,529 describes fibers of this type with a wide variety of cross sections. The characteristic of such matrix / segment threads is that the so-called segments are completely or partially covered by the second component, namely the matrix.
In der zitierten französischen Patentschrift wird ferner die Lehre gegeben, z.B. durch Behandeln während 5 Minuten in Aceton und anschließendes mehrfaches Überleiten über eine scharfe Klinge die Mehrkomponentenfaser ganz oder teilweise in die einzelnen Komponenten aufzuteilen. Es ist ferner möglich, die Komponenten voneinander zu trennen, indem man die Mehrkomponentenfaser mit einem Lösungsmittel behandelt, das eine der Komponenten auflöst.The teaching is also given in the cited French patent, for example by treatment for 5 minutes in acetone and subsequent multiple transfers over a sharp blade to divide the multicomponent fiber completely or partially into the individual components. It is also possible to separate the components from one another by treating the multicomponent fiber with a solvent that dissolves one of the components.
Die in dieser französischen Patentschrift beschriebenen Verfahren weisen jedoch eine Reihe von Nachteilen auf. So geht durch das Lösen einer Komponente in einem Lösungsmittel wertvolles Material verloren bzw. muß dieses auf umständliche Weise wieder zurückgewonnen werden; auch nimmt das Lösen beachtliche Zeit in Anspruch. Schließlich werden auch die Eigenschaften der übrigbleibenden Komponente durch die Lösungsmittelbehandlung verschlechtert.However, the methods described in this French patent have a number of disadvantages. Thus, by dissolving a component in a solvent, valuable material is lost or must be recovered in a cumbersome manner; it also takes a considerable amount of time to solve. Finally, the properties of the remaining component are also deteriorated by the solvent treatment.
Die dort beschriebenen mechanischen Verfahren zum Trennen bewirken nur eine unvollkommene Spaltung bzw. Fibrillierung in die einzelnen Komponenten und führen darüber hinaus zu einer Beschädigung des Garns.The mechanical separation processes described there only cause incomplete splitting or fibrillation into the individual components and also lead to damage to the yarn.
In der deutschen Offenlegungsschrift 2 809 346 wird ein Verfahren beschrieben, bei dem Mehrkomponentenfasern mit speziellen organischen Lösungsmitteln behandelt werden, in denen die einzelnen Komponenten nicht löslich sind, in denen die Mehrkomponentenfasern jedoch ein so günstiges Schrumpfverhalten aufweisen, daß eine äußerst schnell und praktisch vollständige Spaltung in Matrix- und Segmentkomponenten stattfindet. Die dort beschriebenen Faserstrukturen zeichnen sich insbesondere durch einen natürlichen seidenartigen Griff aus.German patent application 2 809 346 describes a process in which multicomponent fibers are treated with special organic solvents in which the individual components are not soluble, but in which the multicomponent fibers have such a favorable shrinkage behavior that an extremely fast and practically complete cleavage takes place in matrix and segment components. The fiber structures described there are particularly characterized by a natural, silk-like feel.
In der deutschen Offenlegungsschrift 2 908 101 wird ein Verfahren beschrieben, bei dem man Mehrkomponentenfasern des Matrix/Segmenttyps einer speziellen Falschdrallbehandlung unterzieht, so daß die einzelnen Komponenten insgesamt oder zum Teil im Fadenverband in unregelmäßigen Abständen durch den Fadenquerschnitt teilweise oder vollständig durch Klebestellen verbunden sind.German Offenlegungsschrift 2 908 101 describes a method in which multi-component fibers of the matrix / segment type are subjected to a special false twist treatment, so that the individual components are connected in whole or in part in the thread structure at irregular intervals through the thread cross-section, in part or completely, by means of adhesive points.
Die in der zuletzt genannten Offenlegungsschrift beschriebenen Fäden weisen ebenfalls einen seidenartigen Charakter auf und lassen sich - wenn sie als Kettgarne eingesetzt werden - ohne vorheriges Schlichten und/oder Drehen verwenden.The threads described in the last-mentioned publication also have a silk-like character and can - if they are used as warp yarns - be used without prior sizing and / or twisting.
Der seidenartige Charakter des Garns und der textilen Flächengewebe wird vor allem durch das Vorhandensein von Segmentfasern mit niedrigem Titer und ihre spezielle Anordnung im Gewebe hervorgerufen. Meistens liegen die Titer der Segmentfasern unter 0,6 dtex. Wenn einerseits die niedrigen Titer von großem Vorteil insbesondere für den Tragekomfort sind, so bringen sie jedoch den Nachteil mit sich, daß die textilen Flächengebilde stärker zum Knittern neigen und auch die Knittererholung in vielen Fällen zu wünschen übrig läßt. Textile Flächengebilde aus den oben erwähnten Fäden bzw. Garnen bereiten im übrigen gewisse Schwierigkeiten beim Anfärben. So fallen die Färbungen im allgemeinen heller aus, wenn man die gleiche Menge an Farbstoff verwendet, wie man sie sonst beim Färben von textilen Flächengebilden einsetzt, wenn man z.B. aus üblichen Polyestergarnen hergestellte Gewebe färben will. Ferner ist es schwierig, tiefe Färbungen mit ausreichenden Echtheiten unter Einsatz von größeren Mengen von Farbstoff zu erzielen.The silk-like character of the yarn and the textile fabrics is mainly caused by the presence of segment fibers with low titer and their special arrangement in the fabric. The titer of the segment fibers is usually below 0.6 dtex. If, on the one hand, the low titers are of great advantage, in particular for comfort, they have the disadvantage, however, that the textile fabrics tend to crease more and the crease recovery also leaves something to be desired in many cases. Textile fabrics made from the threads or yarns mentioned above also cause certain difficulties in dyeing. For example, the dyeings are generally lighter if the same amount of dye is used as is otherwise used for dyeing textile fabrics, for example if wants to dye fabrics made from conventional polyester yarns. Furthermore, it is difficult to achieve deep dyeings with sufficient fastness using large amounts of dye.
Es besteht deshalb noch das Bedürfnis, die Verfahren zur Herstellung von Fäden und Garne des Mehrkomponentenfasertyps und deren Eigenschaften zu verbessern sowie textile Flächengebilde zu besitzen, die die oben erwähnten Nachteile nicht aufweisen.There is therefore still a need to improve the processes for the production of threads and yarns of the multi-component fiber type and their properties and to have textile fabrics which do not have the disadvantages mentioned above.
Aufgabe der Erfindung ist es deshalb, ein brauchbares, wirtschaftliches Verfahren zur Verfügung zu stellen, nach dem Garne zugänglich sind, die zu textilen Flächengebilden führen, die eine verringerte Knitterneigung aufweisen und deren Knittererholung verbessert ist. Aufgabe der Erfindung ist es ferner, Garne und textile Flächengebilde aus Mehrkomponentenfasern des Matrix/Segmenttyps zur Verfügung zu stellen,die sich besser anfärben lassen, die weniger Farbstoff bei der Färbung benötigen als die bisher bekannten textilen Produkte aus gespalteten Mehrkomponentenfasern und die sich darüber hinaus auch in tiefen Anfärbungen herstellen lassen.It is therefore an object of the invention to provide a usable, economical method by which yarns are accessible which lead to textile fabrics which have a reduced tendency to crease and whose recovery is improved. It is also an object of the invention to provide yarns and textile fabrics made of multicomponent fibers of the matrix / segment type, which are easier to dye, which require less dye for dyeing than the previously known textile products made of split multicomponent fibers, and which are also suitable have it produced in deep stains.
Diese Aufgabe wird durch ein Verfahren zur Herstellung von Filamentgarnen aus Mehrkomponentenfasern des Matrix/Segmenttyps und gegebenenfalls deren Weiterverarbeitung zu einem textilen Flächengebilde gelöst, das dadurch gekennzeichnet ist, daß man Mehrkomponentenfasern, die Segmente unterschiedlichen Titers enthalten, wobei das Verhältnis niedriger Titer zu höherem Titer zwischen etwa 1 : 1,6 und 1 : 30 liegt und das Gewichtsverhältnis niedrigtitrige Segmente zu höhertitrigen Segmenten im Garn zwischen etwa 25 : 75 und 75 : 25 liegt, nach dem Falschdrallverfahren texturiert und dabei eine Fixiertemperatur anwendet, die mindestens der Schmelztemperatur der Matrixkomponenten entspricht, wobei die Fasern durch den dabei aufweichenden Matrixbestandteil punktuell, bereichsweise oder nahezu über die ganze Länge ganz oder teilweise über den Querschnitt des Garns miteinander verklebt werden und die Garne ggf., insbesondere nach ihrer Verarbeitung zu einem textilen Flächengebilde, einer Schrumpfbehandlung unterwirft.This object is segment type and dissolved atrix by a process for producing filament yarns from multicomponent fibers of the M / optionally their further processing into a textile fabric, which is characterized in that multi-component fibers, the segments contain different titer, wherein the ratio of lower denier to higher denier is between about 1: 1.6 and 1.30 and the weight ratio of low-titer segments to higher-titer segments in the yarn is between about 25: 75 and 75: 25, textured according to the false twist process and applying a fixing temperature that corresponds at least to the melting temperature of the matrix components , the fibers due to the softening matrix component be glued to one another, in parts or almost over the entire length, in whole or in part over the cross section of the yarn, and the yarns may be subjected to a shrinking treatment, in particular after they have been processed into a textile fabric.
Es ist möglich, dabei Mehrkomponentenfasern zu verwenden, die Segmente unterschiedlichen Titers und unterschiedlicher Profile enthalten. Vorzugsweise wird eine Fixiertemperatur von 190 bis 230°C angewendet. Man kann Mehrkomponentenfasern mit peripheren Segmenten unterschiedlichen Titers verwenden, geeignet sind jedoch auch Mehrkomponentenfasern mit niedrigtitrigen peripheren Segmenten und höhertitrigen durch die Matrix vollständig umhüllten Segmenten. Zweckmäßig wird als Matrixkomponente Polyamid und als Segmentkomponente Polyester verwendet, und zwar vorzugsweise als Polyesterkomponente Polyäthylenterephthalat und als Polyamidkomponente Polyamid-6.It is possible to use multi-component fibers that contain segments of different titers and different profiles. A fixing temperature of 190 to 230 ° C. is preferably used. Multi-component fibers with peripheral segments of different titers can be used, but multi-component fibers with low-titer peripheral segments and high-titer segments completely covered by the matrix are also suitable. It is useful to use polyamide as the matrix component and polyester as the segment component, preferably as the polyester component polyethylene terephthalate and as the polyamide component polyamide-6.
Für die Schrumpfbehandlung ist Methylenchlorid besonders geeignet. Es ist auch möglich, die Schrumpfbehandlung in Wasser unter gleichzeitigem Einwirkenlassen von mechanischen Kräften durchzuführen; die Schrumpfbehandlung kann gleichzeitig mit einem Färbeprozeß oder einem Waschprozeß kombiniert werden. Zur Durchführung der Schrumpfbehandlung ist auch Tumblen in Heißluft möglich. Der Anteil der Matrix in den Mehrkomponentenfasern liegt zweckmäßig zwischen 5 bis 45 %, vorzugsweise zwischen 7,5 und 20 %.Methylene chloride is particularly suitable for the shrinking treatment. It is also possible to carry out the shrinking treatment in water with simultaneous exposure to mechanical forces; the shrinking treatment can be combined with a dyeing process or a washing process. Tumbling in hot air is also possible to carry out the shrinking treatment. The proportion of the matrix in the multicomponent fibers is advantageously between 5 and 45%, preferably between 7.5 and 20%.
Gegenstand der Erfindung sind weiter Filamentgarne aus ganz oder teilweise gesplitteten Mehrkomponentenfasern des Matrix/Segmenttyps, dadurch gekennzeichnet, daß die Mehrkomponentenfasern Segmente unterschiedlichen Titers enthalten, wobei das Verhältnis niedriger Titer zu höheren Titer etwa zwischen 1 : 1,6 und 1 : 30 liegt und das Gewichtsverhältnis niedrigtitrige Segmente zu höhertitrigen Segmenten im Garn zwischen etwa 25 : 75 und 75 : 25 liegt und die Einzelkomponenten insgesamt oder zum Teil im Fadenverband in unregelmäßigen Abständen durch den Fadenquerschnitt durch Klebestellen punktuell oder bereichsweise verbunden sind.The invention further relates to filament yarns made from wholly or partially split multicomponent fibers of the matrix / segment type, characterized in that the M ehrkomponentenfasern segments different titer contained, wherein the ratio of lower denier to higher denier between about 1: 1.6 and 1: 30 and the weight ratio Although low segments höhertitrigen segments in the yarn is between about 25: is 25 and the individual components: 75 and 75 all or part of the thread assembly are connected at irregular intervals by the thread cross-section through adhesive points or in certain areas.
Eine weitere Ausführungsform der Erfindung sind Filamentgarne aus ganz oder teilweise gesplitteten Mehrkomponentenfasern des Matrix/Segmenttyps, dadurch gekennzeichnet, daß die Mehrkomponentenfasern Segmente unterschiedlichen Titers enthalten, wobei das Verhältnis niedriger Titer zu höherem Titer etwa zwischen 1 : 1,6 und 1 : 30 liegt und das Gewichtsverhältnis niedrigtitrige Segmente zu höhertitrigen Segmenten im Garn zwischen etwa 25 : 75 und 75 25 liegt und die Einzelkomponenten insgesamt oder zum Teil im Fadenverband nahezu über die ganze Länge miteinander verklebt sind.Another embodiment of the invention are filament yarns made of wholly or partially split multicomponent fibers of the matrix / segment type, characterized in that the multicomponent fibers contain segments of different titers, the ratio of low titer to higher titer being approximately between 1: 1.6 and 1.30 and the weight ratio of low-titer segments to higher-titer segments in the yarn is between about 25:75 and 75 25 and the individual components as a whole or in part are bonded to one another almost over the entire length.
In einer besonders vorteilhaften Ausführungsform sind Filamentgarne der Erfindung gekennzeichnet durch eine Mehrkomponentenfaser mit mindestens 10 niedrigtitrigen peripheren Segmenten und einem höhertitrigen durch die Matrix vollständig umhüllten Segment, wobei das Verhältnis niedrigtitriger zu höherem Titer etwa 1 : 25 bis 1 : 30 beträgt.In a particularly advantageous embodiment of the invention, filament yarns are characterized by an M ehrkomponentenfaser niedrigtitrigen with at least 10 peripheral segments and a höhertitrigen completely enveloped by the matrix segment, wherein the ratio of low responding to higher titer is about 1: 30 25 to the first
Gegenstand der Erfindung sind ferner textile Flächengebilde, wie Gewebe, Gewirke oder dergleichen, welche die obengenannten Filamentgarne enthalten. Vorzugsweise besitzen die Filamentgarne in den textilen Flächengebilden niedrigtitrige Segmentfasern mit einem Titer kleiner als 0,6 dtex und höhertitrige Segmentfasern mit einem Titer von mindestens 1 dtex. Es ist günstig, wenn die Zahl der Klebestellen zwischen etwa 3 und 80 pro Meter liegt.The invention further relates to textile fabrics, such as fabrics, knitted fabrics or the like, which contain the above-mentioned filament yarns. The filament yarns preferably have in the textile fabrics low-titer segment fibers with a titer of less than 0.6 dtex and higher-titer segment fibers with a titer of at least 1 dtex. It is advantageous if the number of glue points is between about 3 and 80 per meter.
Um Mehrkomponentenfasern des Matrix/Segmenttyps herzustellen, die Segmente unterschiedlichen Titers und in dem erforderlichen Titerverhältnis enthalten, kann eine Vorrichtung dienen, wie sie in der DE-OS 2 803 136 beschrieben wird. So ist es möglich, durch Kombination von Mehrkomponentenfasern mit Querschnitten, wie sie in Fig. 1 und Fig. 2 dieser Offenlegungsschrift beschrieben werden, ein Mehrkomponentenfasergemisch zu erhalten, das die gewünschten Verhältnisse bezüglich der Segmente aufweist. Es sind auch Kombinationen möglich, aus Querschnitten gemäß Fig. 1 und Fig. 6 entsprechend der DE-OS 2 803 136, wodurch man neben dem Titerunterschied der Segmente auch Unterschiede im Profil erreichen kann. Querschnitte mit abgerundeten Segmenten, wie sie in Fig. 1 bis 3 der erwähnten Offenlegungsschrift wiedergegeben werden, bezeichnet man auch als Zahnradprofil, wobei die Fig. 1 und die Fig. 2 sogenannte Dreier- bzw. Sechserzahnradprofile darstellen. Der in Fig. 6 wiedergegebene Querschnitt wird häufig auch als Orangenprofil bezeichnet.In order to produce multi-component fibers of the matrix / segment type, which contain segments of different titers and in the required titer ratio, a device such as is described in DE-OS 2 803 136 can be used. It is thus possible, by combining multicomponent fibers with cross sections, as are described in FIGS. 1 and 2 of this published specification, to obtain a multicomponent fiber mixture which has the desired ratios with respect to the segments. Combinations of cross sections according to FIGS. 1 and 6 in accordance with DE-OS 2 803 136 are also possible, as a result of which not only the titer difference of the segments but also differences in profile can be achieved. Cross sections with rounded segments, as shown in FIGS. 1 to 3 of the published patent application, are also referred to as gear profiles, with FIG. 1 and FIG. 2 representing so-called triple and hex gear profiles. The cross section shown in FIG. 6 is often also referred to as an orange profile.
In einer besonders vorteilhaften Ausführungsform der Erfindung wird ein Querschnitt, wie er in der Fig. 3 der DE-OS 2 803 136 wiedergegeben wird, so abgewandelt, daß mindestens 10, vorzugsweise 12, periphere Segmente vorhanden sind und 1 Kernsegment (siehe Abbildung der Anmeldung).In a particularly advantageous embodiment of the invention, a cross section, as shown in FIG. 3 of DE-OS 2 803 136, is modified such that there are at least 10, preferably 12, peripheral segments and 1 core segment (see illustration of the application ).
Durch entsprechendes Regeln der Spinnbedingungen und das Verstreckens der Faser kann man ein Garn erhalten, das nach seiner Verarbeitung niedrigtitrige Segmente aufweist, die z.B.im Bereich von etwa 0,08 bis 0,1 dtex liegen und ein grobtitriges Segment enthalten, dessen Titer etwa 2,2 bis 2,6 dtex beträgt. Ein wertvolles Garn aus derartigen Mehrkomponentenfasern kann beispielsweise 15 Fasern enthalten und besitzt somit 180 feine und 15 grobe Segmente (siehe Tabelle Beispiel 3).By appropriate regulation of the spinning conditions and that Drawing the fiber can be obtained a yarn that has low-titer segments after processing, z. B .i m range from about .08 to 0.1 dtex and a segment containing grobtitriges whose titre dtex to 2.6 about 2.2. A valuable yarn made from such multicomponent fibers can contain 15 fibers, for example, and thus has 180 fine and 15 coarse segments (see table in Example 3).
Düsen mit den gewünschten Querschnitten können auf einer gemeinsamen Düsenplatte angebracht sein, so daß man von einer Spinnstelle sogleich die erforderliche Zahl von Mehrkomponentenfasern für das Filamentgarn erhält. Die Mehrkomponentenfasern, welche den gemäß der Erfindung geforderten Aufbau hinsichtlich der Segmente aufweisen, werden sodann verstreckt und/oder einer Falschdrallbehandlung unterzogen, wobei eine Fixiertemperatur angewendet wird, die mindestens der Schmelztemperatur der Matrixkomponenten entspricht. Einzelheiten über dieses Verfahren sind der DE-OS 2 908 1O1 zu entnehmen, auf die sich hier ausdrücklich bezogen wird.Nozzles with the desired cross sections can be mounted on a common nozzle plate, so that the required number of multi-component fibers for the filament yarn is immediately obtained from a spinning station. The multicomponent fibers, which have the structure required according to the invention with regard to the segments, are then drawn and / or subjected to false twist treatment, a fixing temperature being used which corresponds at least to the melting temperature of the matrix components. Details of this process can be found in DE-OS 2 908 1O1, to which reference is expressly made here.
Durch Variieren der Parameter während der Falschdrallkräuselung ist es möglich, die Verklebung der Segmente im Garn weitgehend zu steuern. Je nach den Bedingungen z.B. durch Variieren der Kontaktzeit mit dem 1. Heizaggregat kann man bewirken, daß nur wenige punktuelle Klebestellen vorhanden sind bzw. daß Verklebung bereichsweise vorliegen. Bei intensiveren Bedingungen ist es möglich, daß die Verklebung praktisch über das ganze Garn in seiner Länge vorhanden ist. Die Verklebungen können über den Querschnitt gesehen einzelne Segmente erfassen. Es ist auch möglich, daß die Verklebungen über den ganzen Querschnitt des Garns gehen. Die Intensität der Verklebung kann zusätzlich durch die Wahl der Matrixkomponenten und ihren Anteil in den Mehrkomponentenfaser variiert werden. Zum Falschdralltexturieren können übliche Vorrichtungen, z.B. eine Barmag-Type F K 6 C verwendet werden.By varying the parameters during the false twist crimp, it is possible to largely control the gluing of the segments in the yarn. Depending on the conditions, for example by varying the contact time with the 1st heating unit, you can ensure that there are only a few punctual glue points or that there are areas of gluing. In more intense conditions, it is possible that the bond is practically the entire length of the yarn. The bonds can capture individual segments across the cross-section. It is also possible that the bonds go over the entire cross section of the yarn. The intensity of the bond can also be varied by the choice of the matrix components and their proportion in the multi-component fibers. For false twist texturing usual devices, for example a Barmag type FK 6 C can be used.
Durch die gegebenenfalls, insbesondere nach der Verarbeitung zu einem textilen Flächengebilde erfolgende Schrumpfbehandlung wird ein Teil der Verklebungen wieder rückgängig gemacht, so daß eine starke Spaltung bzw. Fibrillierung in die einzelnen Komponenten eintritt, die während des Falschdralltexturierens kaum oder nur in geringerem Maße in Erscheinung getreten ist.Due to the shrinkage treatment that may take place, especially after processing into a textile fabric, some of the bonds are removed again, so that a strong cleavage or fibrillation occurs in the individual components, which hardly or only to a small extent occur during the false twist texturing is.
Die Schrumpfbehandlung der Garne, welche vorzugsweise nach ihrer Verarbeitung zu einem textilen Flächengebilde vorgenommen wird, kann vorteilhaft nach einem Verfahren stattfinden, wie es in der DE-OS 2 809 346 beschrieben wird. Das.in dieser Offenlegungsschrift angegebene Lösungsmittel Methylenchlorid ist für die Schrumpfbehandlung besonders geeignet. Baz üglich der Fibrillierung und Spaltung der Mehrkomponentenfasern in Segmente wird ausdrücklich auf die Offenbarung der Offenlegungsschrift Nr. 2 809 346 verwiesen.The shrinking treatment of the yarns, which is preferably carried out after they have been processed into a textile fabric, can advantageously take place by a method as described in DE-OS 2 809 346. The solvent methylene chloride specified in this published specification is particularly suitable for shrinking treatment. With regard to the fibrillation and splitting of the multicomponent fibers into segments, reference is expressly made to the disclosure of laid-open specification No. 2 809 346.
In vielen Fällen ist es auch möglich, anstelle der in der eben erwähnten Offenlegungsschrift beschriebenen Schrumpf- . behandlung das Schrumpfen in Wasser unter gleichzeitigem Einwirkenlassen von mechanischen Kräften zu bewirken. Hierzu bieten sich Waschprozesse, wie sie während der Herstellung des textilen Gebildes erforderlich sind, besonders an. Es ist ferner möglich, den Schrumpfprozeß gleichzeitig mit einem Färbeverfahren z.B. in wäßriger Flotte zu kombinieren.In many cases it is also possible to replace the shrinkage described in the aforementioned publication. treatment to cause shrinkage in water with simultaneous exposure to mechanical forces. Washing processes such as those required during the production of the textile structure are particularly suitable for this. It is also possible to use the shrinking process simultaneously with a dyeing process e.g. to combine in an aqueous liquor.
Es war besonders überraschend, daß man gemäß der Erfindung Garne und textile Flächengebilde auf besonders vorteilhafte Weise mit hervorragenden Eigenschaften herstellen kann.It was particularly surprising that yarns and fabrics were particularly advantageous according to the invention Way with excellent properties.
Die falschdralltexturierten Garne weisen einen hervorragenden Fadenschluß auf und können ohne größere Schwierigkeiten weiterverarbeitet werden. Sie lassen sich mit großen Geschwindig- keiten auf- und abspulen, ohne daß es wegen der Segmente zu Fadenbrüchen oder Absplitten von Segmentteilen kommt. Beson- ders vorteilhaft ist, daß die Garne sich direkt, ohne daß man sie schlichten oder drehen müßte, als Kette weiterverarbeiten lassen. Dies ist nicht nur von Vorteil, weil man dabei den Arbeitsgang des Schlichtens einspart, sondern weil dadurch auch eine umweltbelastende Verarbeitungsstufe in Fortfall kommt.The false twist textured yarns have an excellent company to denschluß and can be processed without major difficulties. They can be up with great velocity ke th and uncoil, without causing segment of parts because of the segments to thread breakage or splitting off. Special de rs is advantageous that the yarns directly without, can be that they are simple and would rotate further processed as a chain. This is not only advantageous because it saves the finishing step, but also because an environmentally harmful processing step is eliminated.
Die Garne entfalten nach ihrer Verarbeitung zu einem textilen Flächengebilde und nach Auslösen des Schrumpfes ein großes Volumen, so daß eine hervorragende Deckkraft erhalten wird. Die feinen Segmente, welche auf dem textilen Gebilde einen feinen zarten Schlingenflor bilden, bewirken einen besonders angenehmen Griff. Sie wirken darüber hinaus wie ein Abstandshalter zwischen der Haut und den textilen Flächengebilden, so daß man einerseits das Kleidungsstück sehr angenehm auf der Haut fühlt, andererseits aber noch eine genügende Luftzirkulation auf der Haut stattfinden kann, so daß besonders beim Schwitzen ein angenehmes Tragegefühl auftritt.The yarns develop a large volume after they have been processed into a textile fabric and after the shrinkage has been triggered, so that excellent covering power is obtained. The fine segments, which form a fine, delicate loop pile on the textile structure, result in a particularly pleasant grip. They also act as a spacer between the skin and the textile fabrics, so that on the one hand the garment feels very comfortable on the skin, but on the other hand sufficient air circulation can take place on the skin, so that it is particularly pleasant to wear when sweating.
Während des Texturierprozesses nach dem Falschdrallverfahren treten keine Schwierigkeiten auf. So gibt es z.B. im Texturieraggregat und auf der sogenannten hot plate keinerlei Ver- schmierungen, die sich störend auswirken könnten.No difficulties arise during the texturing process using the false twist method. For example, there in the texturing and the so-called hot plate no way constitutes any s chmierungen that could be disruptive.
Infolge des Vorhandenseins von Segmenten unterschiedlichen Titers weisen die Segmente in dem falschdralltexturierten Filamentgarn unterschiedliches Relaxations- und Schrumpfverheilten auf. Dadurch wird der Griff und das Volumen des textilen Gebildes besonders vorteilhaft beeinflußt.Due to the presence of segments of different titers, the segments in the false twist textured filament yarn have different relaxation and shrinkage processes healed up. The grip and the volume of the textile structure are thereby influenced in a particularly advantageous manner.
Die erfindungsgemäßen Garne eignen sich zur Herstellung von üblichen textilen Flächengebilden, wie Webwaren und Maschenwaren. Sie lassen sich auf gebräuchlichen Webstühlen und Strickmaschinen ohne Schwierigkeiten verarbeiten.The yarns according to the invention are suitable for the production of conventional textile fabrics, such as woven goods and knitted fabrics. They can be easily processed on common looms and knitting machines.
Textile Flächengebilde gemäß der Erfindung zeichnen sich durch verbesserte Knittereigenschaften, insbesondere durch verringerte Knitterneigung und eine verbesserte Knittererholung aus.Textile fabrics according to the invention are distinguished by improved wrinkle properties, in particular by a reduced tendency to wrinkle and an improved wrinkle recovery.
Bei gleicher optischer Farbtiefe kann die Farbstoffmenge gegenüber einer Färbung von Textilien aus üblichen Matrix/ Segmentgarnen um mindestens 10 %,häufig um wesentlich mehr reduziert werden. Die Echtheiten sind zufriedenstellend.With the same optical color depth, the amount of dye can be reduced by at least 10%, often by considerably more, compared to dyeing textiles made from conventional matrix / segment yarns. The fastnesses are satisfactory.
In der folgenden Tabelle sind beispielhaft einige Filamentgarne gemäß der Erfindung aufgeführt.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81107362T ATE9008T1 (en) | 1980-09-23 | 1981-09-17 | YARN FROM MULTI-COMPONENT FILAMENTS OF THE MATRIX/SEGMENT TYPE, THEIR PRODUCTION AND USE IN TEXTILE FLAT STRUCTURES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3035862A DE3035862C2 (en) | 1980-09-23 | 1980-09-23 | Filament yarns made from multi-component fibers and their use in textile fabrics |
DE3035862 | 1980-09-23 |
Publications (2)
Publication Number | Publication Date |
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EP0048453A1 true EP0048453A1 (en) | 1982-03-31 |
EP0048453B1 EP0048453B1 (en) | 1984-08-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19810107362 Expired EP0048453B1 (en) | 1980-09-23 | 1981-09-17 | Conjugate filament yarn of the matrix/segments type, its production and its use in textile fabrics |
Country Status (5)
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US (1) | US4447489A (en) |
EP (1) | EP0048453B1 (en) |
JP (1) | JPS57121634A (en) |
AT (1) | ATE9008T1 (en) |
DE (1) | DE3035862C2 (en) |
Cited By (1)
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US5047189A (en) * | 1990-05-11 | 1991-09-10 | Nan Ya Plastics Corporation | Process for preparing partially dissolvable and splittable conjugated microfiber |
Families Citing this family (14)
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DE3046228A1 (en) * | 1980-12-08 | 1982-07-22 | Akzo Gmbh, 5600 Wuppertal | COLOR RIBBON |
JPS61194247A (en) * | 1985-02-18 | 1986-08-28 | 株式会社クラレ | Composite fiber cloth |
KR950001645B1 (en) * | 1987-10-02 | 1995-02-27 | 바스프 코포레이션 | Profiled multi-component fibers and method and apparatus for making the same |
US5162074A (en) * | 1987-10-02 | 1992-11-10 | Basf Corporation | Method of making plural component fibers |
US5229184A (en) * | 1988-04-14 | 1993-07-20 | Albany International Corporation | Heat shrinkable fibres and products therefrom |
ZA964684B (en) * | 1995-06-06 | 1997-03-12 | Gillette Canada | Dental floss |
US6027592A (en) * | 1995-06-06 | 2000-02-22 | Gillette Canada Inc. | Dental floss |
US5845652A (en) * | 1995-06-06 | 1998-12-08 | Tseng; Mingchih M. | Dental floss |
US5759926A (en) * | 1995-06-07 | 1998-06-02 | Kimberly-Clark Worldwide, Inc. | Fine denier fibers and fabrics made therefrom |
AU711077B2 (en) | 1995-11-30 | 1999-10-07 | Kimberly-Clark Worldwide, Inc. | Superfine microfiber nonwoven web |
US6293287B1 (en) | 1996-09-13 | 2001-09-25 | Gillette Canada Inc. | UV-cured resin-coated dental floss |
US6039054A (en) * | 1998-09-23 | 2000-03-21 | Gillette Canada Company | Dental floss |
JP7147999B2 (en) * | 2019-11-26 | 2022-10-05 | 株式会社村田製作所 | thread |
US11591748B2 (en) | 2020-01-14 | 2023-02-28 | Shadow Works, Llc | Heat treated multilayer knitted textile of liquid crystal polymer fibers and modified polyacrylonitrile fibers, and process for making same |
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DE2809346A1 (en) * | 1978-03-03 | 1979-09-06 | Akzo Gmbh | Fibrous structures prodn. from multicomponent fibres by treatment with organic solvent to effect differential shrinkage |
DE2908101A1 (en) * | 1979-03-02 | 1980-09-11 | Akzo Gmbh | MULTIFILER THREAD MADE OF SINGLE FILAMENTS OF THE MULTI-COMPONENT MATRIX SEGMENT TYPE |
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NL279946A (en) * | 1962-06-20 | |||
JPS56526B2 (en) * | 1972-10-02 | 1981-01-08 | ||
JPS5249352A (en) * | 1975-10-16 | 1977-04-20 | Toray Industries | Manufacture of processed yarn |
JPS5927407B2 (en) * | 1976-10-06 | 1984-07-05 | 東レ株式会社 | Manufacturing method of temporary twisted yarn |
JPS53139849A (en) * | 1977-05-10 | 1978-12-06 | Toray Industries | Falseetwisted yarn and method of manufacture thereof |
DE2803136C2 (en) * | 1978-01-25 | 1984-04-05 | Akzo Gmbh, 5600 Wuppertal | Method and device for the production of a multicomponent thread consisting of at least two synthetic polymer components |
US4239720A (en) * | 1978-03-03 | 1980-12-16 | Akzona Incorporated | Fiber structures of split multicomponent fibers and process therefor |
DE7905757U1 (en) * | 1979-03-02 | 1980-01-24 | Akzo Gmbh, 5600 Wuppertal | FALSE TWIST TEXTURED MULTIFILER THREAD MADE FROM INDIVIDUAL FILMS OF THE MULTI-COMPONENT MATRIX SEGMENT TYPE |
US4364983A (en) * | 1979-03-02 | 1982-12-21 | Akzona Incorporated | Multifilament yarn of individual filaments of the multicomponent matrix/segment type which has been falsetwisted, a component thereof shrunk, a component thereof heatset; fabrics comprising said |
-
1980
- 1980-09-23 DE DE3035862A patent/DE3035862C2/en not_active Expired
-
1981
- 1981-09-17 AT AT81107362T patent/ATE9008T1/en not_active IP Right Cessation
- 1981-09-17 EP EP19810107362 patent/EP0048453B1/en not_active Expired
- 1981-09-23 US US06/304,907 patent/US4447489A/en not_active Expired - Fee Related
- 1981-09-24 JP JP14965881A patent/JPS57121634A/en active Pending
Patent Citations (2)
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DE2809346A1 (en) * | 1978-03-03 | 1979-09-06 | Akzo Gmbh | Fibrous structures prodn. from multicomponent fibres by treatment with organic solvent to effect differential shrinkage |
DE2908101A1 (en) * | 1979-03-02 | 1980-09-11 | Akzo Gmbh | MULTIFILER THREAD MADE OF SINGLE FILAMENTS OF THE MULTI-COMPONENT MATRIX SEGMENT TYPE |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US5047189A (en) * | 1990-05-11 | 1991-09-10 | Nan Ya Plastics Corporation | Process for preparing partially dissolvable and splittable conjugated microfiber |
Also Published As
Publication number | Publication date |
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DE3035862A1 (en) | 1982-05-13 |
US4447489A (en) | 1984-05-08 |
EP0048453B1 (en) | 1984-08-15 |
ATE9008T1 (en) | 1984-09-15 |
JPS57121634A (en) | 1982-07-29 |
DE3035862C2 (en) | 1986-04-17 |
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