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EP0686723A2 - Sewing thread - Google Patents

Sewing thread Download PDF

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Publication number
EP0686723A2
EP0686723A2 EP95250115A EP95250115A EP0686723A2 EP 0686723 A2 EP0686723 A2 EP 0686723A2 EP 95250115 A EP95250115 A EP 95250115A EP 95250115 A EP95250115 A EP 95250115A EP 0686723 A2 EP0686723 A2 EP 0686723A2
Authority
EP
European Patent Office
Prior art keywords
sewing thread
product
copolymer
thread according
sewing
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.)
Withdrawn
Application number
EP95250115A
Other languages
German (de)
French (fr)
Other versions
EP0686723A3 (en
Inventor
Werner Amler
Thomas Seitz
Hermann Tillner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0686723A2 publication Critical patent/EP0686723A2/en
Publication of EP0686723A3 publication Critical patent/EP0686723A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/46Sewing-cottons or the like
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D06M15/233Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/327Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
    • D06M15/333Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M7/00Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

  • the invention relates to a sewing thread according to the preamble of claim 1.
  • a variety of requirements are placed on a sewing thread, especially if it is to be machine-processable.
  • a problem with conventional sewing threads is the stretching during sewing and the subsequent gradual resetting.
  • An essential quality feature of a seam is that the two flat structures to be connected are connected via the seam in such a way that a smooth seam is ensured and seam gaping and fraying are avoided. This is the only way to meet the functional and aesthetic requirements of a seam. However, this goal has so far only been achieved unsatisfactorily because practically all sewing threads give rise to seam puckering.
  • the sewing thread is stretched too much when passing through the guides and through the thread lever of the sewing machine. After the sewing process, the sewing thread is shortened to its original length (memory effect). It then comes in the Seam for unwanted seam puckering, since the thread can only recede in the seam by pulling together the flexible flat structures.
  • the regression occurs successively depending on the stability of the flexible fabric, ie the materials to be sewn. Depending on the structure and composition, the regression of the thread can take place within an hour, but possibly also after a few days. In certain cases, the regression even takes place after one or more washing or cleaning processes. In each individual case, this depends on the times and the processes by which the stabilizing agents contained in the tissue can be dissolved or converted by washing or cleaning.
  • the seam puckering occurs whenever the recovery force of the sewing thread is greater than the stability of the material connected by the sewing thread via the seam.
  • threads e.g. warp threads
  • the tensile strengths can certainly correspond to the forces that arise during normal use.
  • the invention has for its object to provide a sewing thread which is such that the desired seam strength is achieved by the stretching during sewing, but the restoring forces ("memory effect") cannot occur which would otherwise occur within a period of time Act.
  • the sliding resistance of weft and warp threads can be increased by a seam on the cut edge of a textile part produced with the thread according to the invention.
  • the special measures according to the invention ensure that practically any commercially available sewing thread can be prepared in such a way that the undesirable properties during or after machine sewing are avoided.
  • the thread is passed through a dispersion in such a way that it is coated with the dispersion to prepare it.
  • a dispersion in such a way that fine pores and gaps are filled with it or, in the case of multi-thread yarns, the individual threads are mutually connected. Then the dispersion applied to or inserted into the sewing thread is dried, whereby the sewing thread is stabilized.
  • This treatment avoids both an undesirable stretching of the sewing thread and the resulting regression following the sewing process. After the sewing process and appropriate handling, there is no longer any undesired seam puckering and fraying of the edge.
  • the stabilizing effect may prevent the individual threads of a sewing thread from being untwisted.
  • the result is a more favorable seam appearance and a higher seam strength.
  • an uninterrupted sewing is guaranteed by the fact that the sewing thread is not subject to a shift in the longitudinal axis ("twist build-up") in front of the tension units.
  • a mixture of an aqueous dispersion of a styrene-butadiene copolymer containing carboxyl groups and having thermally active groups has proven advantageous for the dispersion through which the thread is passed during its treatment.
  • An aqueous dispersion based on a copolymer of vinyl acetate and vinyl laurate can also be used.
  • Triaryl phosphate ester can be added to this mixture as a plasticizer.
  • the dispersions mentioned can also be mixed with one another.
  • Another favorable composition of the dispersions consists of a mixture of an aqueous dispersion of a styrene-butadiene copolymer containing carboxyl groups with thermally reactive groups and an aqueous dispersion based on a copolymer of vinyl acetate-vinyl laurate.
  • An aqueous dispersion based on a copolymer of styrene and acrylic acid ester can also be used.
  • acrylate latex polychloroprene latex, acrylonitrile butadiene latex (copolymer of butadiene and metacrylic acid), butadiene-styrene copolymer, vinyl acetate-vinyl laurate, vinyl acetate and Maleic acid esters, vinyl chloride-vinyl acetate with plasticizer or vinyl acetate-ethylene (with or without antiblocking) can be used.
  • silicone resins can be added as a powder to the dispersion.
  • an antiblocking agent can be added to these mixtures, for example a copolymer dispersion of acrylic acid ester with a minimum film-forming temperature of over 100 degrees Celsius, precipitated silica or fumed silica.
  • a sewing thread treated in the manner described above shows not only the mechanical stabilization but also a water-repellent property and a color stabilization. Colors which are not washable in themselves are stabilized by the treatment described above in such a way that washing out is practically impossible.
  • the dispersions based on a styrene-butadiene copolymer with thermally active groups or acrylonitrite-butadiene latex have proven to be particularly advantageous. Mixtures of latex-polyester-polyurethane and, if necessary, dispersions based on an acrylic acid-ester copolymer can also be used.
  • latices could be omitted in whole or in part.
  • polyester-polyurethane dispersion 20 to 60% butadiene-styrene copolymer, vinyl acetate-vinyl laurate (dispersions), 4 to 20% phosphate ester as plasticizer.
  • the respective mixtures can be adapted to the physical properties of the sewing thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Es wird ein Nähfaden beschrieben, der wenigstens an seiner Oberfläche ein Produkt aufweist, welches dem Faden Stabilität verleiht und beim Einnähen die Fadendehnung erschwert, sich aber noch so elastisch verhält, daß er sich gut vernähen läßt.A sewing thread is described which, at least on its surface, has a product which gives the thread stability and makes thread stretching more difficult when sewing in, but still behaves so flexibly that it can be sewn well.

Description

Die Erfindung bezieht sich auf einen Nähfaden gemäß Oberbegriff des Anspruchs 1.The invention relates to a sewing thread according to the preamble of claim 1.

An einen Nähfaden werden vielfältige Anforderungen gestellt, insbesondere wenn er maschinell verarbeitbar sein soll. Ein Problem der herkömmlichen Nähfäden ist die Dehnung beim Vernähen und die anschließende sukzessive Rückstellung.A variety of requirements are placed on a sewing thread, especially if it is to be machine-processable. A problem with conventional sewing threads is the stretching during sewing and the subsequent gradual resetting.

Ein wesentliches Qualitätsmerkmal einer Naht besteht darin, daß die beiden zu verbindenden Flächengebilde über die Naht so verbunden werden, daß eine glatte Naht gewährleistet ist und ein Nahtklaffen sowie ein Ausfransen vermieden werden. Nur so kann den funktionellen und ästhetischen Anforderungen einer Naht entsprochen werden. Dieses Ziel wird jedoch bisher nur unbefriedigend erreicht, weil praktisch alle Nähfäden Veranlassung zum Nahtkräuseln geben.An essential quality feature of a seam is that the two flat structures to be connected are connected via the seam in such a way that a smooth seam is ensured and seam gaping and fraying are avoided. This is the only way to meet the functional and aesthetic requirements of a seam. However, this goal has so far only been achieved unsatisfactorily because practically all sewing threads give rise to seam puckering.

Die Ursache dafür liegt darin, daß der Nähfaden beim Durchgang durch die Führungen und durch den Fadenhebel der Nähmaschine zu stark gedehnt wird. Nach dem Nähvorgang verkürzt sich der Nähfaden wieder auf seine Ausgangslänge (Memory-Effekt). Dadurch kommt es dann in der Naht zum unerwünschten Nahtkräuseln, da der Faden sich nur durch das Zusammenziehen der flexiblen Flächengebilde in der Naht wieder zurückbilden kann. Die Rückbildung erfolgt sukzessive je nach der Stabilität des flexiblen Flächengebildes, d.h. der zu vernähenden Materialien. Die Rückbildung des Fadens kann je nach Struktur und Zusammensetzung innerhalb einer Stunde, aber ggfs. auch erst nach einigen Tagen erfolgen. In bestimmten Fällen erfolgt die Rückbildung sogar erst nach einem oder mehreren Wasch- oder Reinigungsvorgängen. Dies hängt im jeweiligen Einzelfall davon ab, innerhalb welcher Zeiten und durch welche Vorgänge die im Gewebe enthaltenen Stabilisierungsmittel durch die Wäsche oder Reinigung gelöst bzw. umgewandelt werden können.The reason for this is that the sewing thread is stretched too much when passing through the guides and through the thread lever of the sewing machine. After the sewing process, the sewing thread is shortened to its original length (memory effect). It then comes in the Seam for unwanted seam puckering, since the thread can only recede in the seam by pulling together the flexible flat structures. The regression occurs successively depending on the stability of the flexible fabric, ie the materials to be sewn. Depending on the structure and composition, the regression of the thread can take place within an hour, but possibly also after a few days. In certain cases, the regression even takes place after one or more washing or cleaning processes. In each individual case, this depends on the times and the processes by which the stabilizing agents contained in the tissue can be dissolved or converted by washing or cleaning.

Grundsätzlich kann gesagt werden, daß sich das Nahtkräuseln immer dann einstellt, wenn die Rückbildungskraft des Nähfadens größer ist als die Stabilität des durch den Nähfaden über die Naht verbundenen Materials.Basically, it can be said that the seam puckering occurs whenever the recovery force of the sewing thread is greater than the stability of the material connected by the sewing thread via the seam.

Ein besonderes und bis heute nicht zufriedenstellend gelöstes Problem ergibt sich beim Vernähen von zwei flexiblen textilen Flächengebilden. An den Schnitträndern, an denen die Flächengebilde zusammengenäht werden, können durch bestimmte gegenläufige Reißkräfte in der Naht Fäden (z.B. Kettfäden) aus dem Flächenverbund herausgelöst werden; es entstehen Öffnungen. Die Reißkräfte können dabei durchaus den beim normalen Gebrauch entstehenden Kräften entsprechen.A special problem that has not yet been solved satisfactorily arises when two flexible textile fabrics are sewn together. At the cutting edges, at which the fabrics are sewn together, threads (e.g. warp threads) can be detached from the composite surface by certain opposing tearing forces in the seam; openings are created. The tensile strengths can certainly correspond to the forces that arise during normal use.

Der Erfindung liegt die Aufgabe zugrunde, einen Nähfaden zu schaffen, der so beschaffen ist, daß durch die Dehnung beim Nähen die gewünschte Nahtfestigkeit erreicht wird, aber die Rückstellkräfte ("Memory-Effekt") nicht auftreten können, die sonst innerhalb eines Zeitraumes wirken.The invention has for its object to provide a sewing thread which is such that the desired seam strength is achieved by the stretching during sewing, but the restoring forces ("memory effect") cannot occur which would otherwise occur within a period of time Act.

Die erfindungsgemäße Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The object of the invention is achieved by the features of claim 1.

Durch eine mit dem erfindungsgemäßen Faden hergestellte Naht an der Schnittkante eines Textilteils läßt sich die Schiebefestigkeit von Schuß- und Kettfäden erhöhen.The sliding resistance of weft and warp threads can be increased by a seam on the cut edge of a textile part produced with the thread according to the invention.

Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.Advantageous further developments result from the subclaims.

Durch die besonderen erfindungsgemäßen Maßnahmen wird erreicht, daß praktisch jeder handelsübliche Nähfaden derart präpariert werden kann, daß die unerwünschten Eigenschaften beim bzw. nach dem maschinellen Nähen vermieden werden.The special measures according to the invention ensure that practically any commercially available sewing thread can be prepared in such a way that the undesirable properties during or after machine sewing are avoided.

Zu diesem Zweck wird der Faden derart durch eine Dispersion geführt, daß er mit der Dispersion präparierend beschichtet wird. In Abhängigkeit von der Struktur des Nähfadens wird dieser ggfs. auch mit der Dispersion derart getränkt, daß feine Poren und Zwischenräume damit ausgefüllt werden bzw. bei mehrfädigen Garnen die einzelnen Fäden gegenseitig miteinander verbunden werden. Anschließend wird die auf den Nähfaden auf- bzw. in diesen eingebrachte Dispersion getrocknet, wodurch der Nähfaden seine Stabilisierung erhält.For this purpose, the thread is passed through a dispersion in such a way that it is coated with the dispersion to prepare it. Depending on the structure of the sewing thread, it may also be soaked with the dispersion in such a way that fine pores and gaps are filled with it or, in the case of multi-thread yarns, the individual threads are mutually connected. Then the dispersion applied to or inserted into the sewing thread is dried, whereby the sewing thread is stabilized.

Durch diese Behandlung wird sowohl eine unerwünschte Dehnung des Nähfadens als auch die daraus resultierende Rückbildung im Anschluß an den Nähvorgang vermieden. Es kommt nach dem Nähvorgang und entsprechender Handhabung nicht mehr zu dem unerwünschten Nahtkräuseln und Ausfransen der Kante.This treatment avoids both an undesirable stretching of the sewing thread and the resulting regression following the sewing process. After the sewing process and appropriate handling, there is no longer any undesired seam puckering and fraying of the edge.

Beim Nähen auf Automaten wird durch die stabilisierende Wirkung ggfs. auch ein Aufdrehen der einzelnen Fäden eines Nähgarns verhindert. Es ergibt sich ein günstigeres Nahtbild und eine höhere Nahtfestigkeit. Darüber hinaus wird ein unterbrechungsfreies Nähen gewährleistet, indem das Nähgarn keinen Verschub in der Längsachse ("Drallstau") vor den Spannungseinheiten unterliegt.When sewing on machines, the stabilizing effect may prevent the individual threads of a sewing thread from being untwisted. The result is a more favorable seam appearance and a higher seam strength. In addition, an uninterrupted sewing is guaranteed by the fact that the sewing thread is not subject to a shift in the longitudinal axis ("twist build-up") in front of the tension units.

Für die Dispersion, durch die der Faden im Rahmen seiner Behandlung geführt wird, hat sich ein Gemisch aus einer wäßrigen Dispersion eines Carboxylgruppen enthaltenden Styrol-Butadien-Mischpolymerisates mit thermisch aktiven Gruppen als vorteilhaft erwiesen. Es kann auch eine wäßrige Dispersion auf der Basis eines Copolymerisats aus Vinylacetat und Vinyllaurat verwendet werden. Diesem Gemisch kann Triarylphosphatester als Weichmacher zugefügt werden.A mixture of an aqueous dispersion of a styrene-butadiene copolymer containing carboxyl groups and having thermally active groups has proven advantageous for the dispersion through which the thread is passed during its treatment. An aqueous dispersion based on a copolymer of vinyl acetate and vinyl laurate can also be used. Triaryl phosphate ester can be added to this mixture as a plasticizer.

Die erwähnten Dispersionen können auch miteinander vermischt werden.The dispersions mentioned can also be mixed with one another.

Eine andere günstige Zusammensetzung der Dispersionen besteht aus einem Gemisch aus einer wäßrigen Dispersion eines Carboxylgruppen enthaltenden Styrol-Butadien-Mischpolymerisates mit thermisch reaktiven Gruppen und einer wäßrigen Dispersion auf der Basis eines Copolymerisats aus Vinylacetat-Vinyllaurat. Man kann weiterhin verwenden eine wäßrige Dispersion auf der Basis eines Copolymerisats aus Styrol und Acrylsäureester.Another favorable composition of the dispersions consists of a mixture of an aqueous dispersion of a styrene-butadiene copolymer containing carboxyl groups with thermally reactive groups and an aqueous dispersion based on a copolymer of vinyl acetate-vinyl laurate. An aqueous dispersion based on a copolymer of styrene and acrylic acid ester can also be used.

Schließlich kann auch ein Gemisch aus Acrylat-Latex, Polychloropren-Latex, Acrylnitril-Butadien-Latex (Copolymerisat aus Butadien und Metacrylsäure), Butadien-Styrol-Copolymer, Vinylacetat-Vinyllaurat, Vinylacetat und Maleinsäureester, Vinylchlorid-Vinylacetat mit Weichmacher oder Vinylacetat-Ethylen (mit oder ohne Antiblocking) Verwendung finden. Zur Verbesserung der Wasserabweisung können Silikonharze als Pulver der Dispersion zugefügt werden.Finally, a mixture of acrylate latex, polychloroprene latex, acrylonitrile butadiene latex (copolymer of butadiene and metacrylic acid), butadiene-styrene copolymer, vinyl acetate-vinyl laurate, vinyl acetate and Maleic acid esters, vinyl chloride-vinyl acetate with plasticizer or vinyl acetate-ethylene (with or without antiblocking) can be used. To improve water repellency, silicone resins can be added as a powder to the dispersion.

Diesen Mischungen kann ggfs. ein Antiblockingmittel zugesetzt werden, zum Beispiel eine Copolymer-Dispersion aus Acrylsäureester mit einer Mindest-Filmbilde-Temperatur von über 100 Grad Celsius, gefällte Kieselsäure oder pyrogene Kieselsäure.If necessary, an antiblocking agent can be added to these mixtures, for example a copolymer dispersion of acrylic acid ester with a minimum film-forming temperature of over 100 degrees Celsius, precipitated silica or fumed silica.

Ein in oben beschriebener Weise behandelter Nähfaden zeigt neben der mechanischen Stabilisierung auch eine wasserabweisende Eigenschaft und eine Farbstabilisierung. An sich nicht waschfeste Farben werden durch oben geschilderte Behandlung derart stabilisiert, daß ein Auswaschen praktisch ausgeschlossen wird.A sewing thread treated in the manner described above shows not only the mechanical stabilization but also a water-repellent property and a color stabilization. Colors which are not washable in themselves are stabilized by the treatment described above in such a way that washing out is practically impossible.

Für alle Kunststoffäden mit hoher Dehnung enpfiehlt es sich eine Kunststoff-Dispersion zu wählen, die eine hohe Reißdehnung hat, beispielsweise alle Latices.For all plastic threads with high elongation, it is advisable to choose a plastic dispersion that has a high elongation at break, for example all latices.

Als besonders vorteilhaft haben sich die Dispersionen auf der Basis eines Styrol-Butadien-Mischpolymerisate mit thermisch aktiven Gruppen oder Acrylnitrit-Butadien-Latex erwiesen. Es können aber auch Gemische aus Latex-Polyester-Polyurethan und ggfs. Dispersionen auf der Basis eines Acrylsäure-Ester-Copolymers Verwendung finden.The dispersions based on a styrene-butadiene copolymer with thermally active groups or acrylonitrite-butadiene latex have proven to be particularly advantageous. Mixtures of latex-polyester-polyurethane and, if necessary, dispersions based on an acrylic acid-ester copolymer can also be used.

Bei Nähfäden ohne hohe Dehnung könnte auf Latices ganz oder teilweise verzichtet werden.In the case of sewing threads without high elongation, latices could be omitted in whole or in part.

Beispiel 1 (für hohe Dehnung):Example 1 (for high elongation):

   20 bis 60 % Latex (Dispersion)
   20 bis 60 % Polyester-Polyurethan-Dispersion
   4 bis 20 % Phosphatester als Weichmacher
20 to 60% latex (dispersion)
20 to 60% polyester-polyurethane dispersion
4 to 20% phosphate ester as plasticizer

Beispiel 2 (für geringe Dehnung):Example 2 (for low elongation):

   20 bis 60 % Polyester-Polyurethan-Dispersion
   20 bis 60 % Butadien-Styrol-Copolymer, Vinylacetat-Vinyllaurat (Dispersionen),
   4 bis 20 % Phosphatester als Weichmacher.
20 to 60% polyester-polyurethane dispersion
20 to 60% butadiene-styrene copolymer, vinyl acetate-vinyl laurate (dispersions),
4 to 20% phosphate ester as plasticizer.

Durch geeignete Auswahl können die jeweiligen Mischungen den physikalischen Beschaffenheiten des Nähfadens angepaßt werden.With a suitable selection, the respective mixtures can be adapted to the physical properties of the sewing thread.

Claims (11)

Nähfaden, dadurch gekennzeichnet, daß er wenigstens an seiner Oberfläche ein Produkt aufweist, welches dem Faden Stabilität verleiht und beim Einnähen die Fadendehnung erschwert, sich aber noch so elastisch verhält, daß er sich gut vernähen läßt.Sewing thread, characterized in that it has, at least on its surface, a product which gives the thread stability and makes thread stretching more difficult when sewing in, but is still so elastic that it can be sewn well. Nähfaden nach Anspruch 1, dadurch gekennzeichnet, daß er das erwähnte Produkt auch in seinem Inneren aufweist.Sewing thread according to claim 1, characterized in that it also has said product in its interior. Nähfaden nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Produkt ein Gemisch ist aus einer wäßrigen Dispersion eines Carboxylgruppen enthaltenden Styrol-Butadien-Mischpolymerisates mit thermisch aktiven Gruppen und einer wäßrigen Dispersion auf der Basis eines eines Copolymerisats aus Vinylacetat und Vinyllaurat.Sewing thread according to one of claims 1 or 2, characterized in that the product is a mixture of an aqueous dispersion of a styrene-butadiene copolymer containing carboxyl groups with thermally active groups and an aqueous dispersion based on a copolymer of vinyl acetate and vinyl laurate. Nähfaden nach Anspruch 3, dadurch gekennzeichnet, daß das erwähnte Produkt zusätzlich Triarylphosphatester als Weichmacher enthält.Sewing thread according to claim 3, characterized in that said product additionally contains triaryl phosphate ester as a plasticizer. Nähfaden nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das Produkt ein Gemisch ist aus einer wäßrigen Dispersion eines Carboxylgruppen enthaltenden Styrol-Butadien-Mischpolymerisates mit thermisch aktiven Gruppen und Vinylacetat-Vinyllaurat oder/und einer wäßrigen Dispersion auf der Basis eines Copolymerisats aus Styrol und Acrylsäureester.Sewing thread according to one of claims 1 or 2, characterized in that the product is a mixture of an aqueous dispersion of a carboxyl group-containing Styrene-butadiene copolymer with thermally active groups and vinyl acetate-vinyl laurate or / and an aqueous dispersion based on a copolymer of styrene and acrylic acid ester. Nähfaden nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Produkt ein Acrylat-Latex-Polychloropren-Latex, Acrylnitril-Butadien-Latex (Coplymerisat aus Butadien und Metacrylsäure), Butadien-Styrol-Copolymer, Vinylacetat-Vinyllaurat (Emulgator Polyvinylalkohol), Vinylacetat mit Weichmacher enthält.Sewing thread according to claim 1 or 2, characterized in that the product is an acrylate latex-polychloroprene latex, acrylonitrile-butadiene latex (copolymer of butadiene and metacrylic acid), butadiene-styrene copolymer, vinyl acetate-vinyl laurate (emulsifier polyvinyl alcohol), vinyl acetate contains with plasticizer. Nähfaden nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Produkt Vinylacetat-Ethylen (mit oder ohne Antiblocking) enthält.Sewing thread according to one of claims 1 to 5, characterized in that the product contains vinyl acetate-ethylene (with or without antiblocking). Nähfaden nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Produkt zusätzlich Siliconharze zur Verbesserung der Wasserabweisung enthält, die als Pulver der Dispersion zugesetzt wurden.Sewing thread according to one of claims 1 to 7, characterized in that the product additionally contains silicone resins for improving water repellency which have been added as a powder to the dispersion. Nähfaden nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Produkt die in den Ansprüchen 3 bis 8 angegebenen Zusätze in geeigneter Kombination enthält.Sewing thread according to claim 1 or 2, characterized in that the product contains the additives specified in claims 3 to 8 in a suitable combination. Nähfaden nach einem der Ansprüche 1, 2 oder 3, dadurch gekennzeichnet, daß zusätzlich eine Dispersion auf der Basis eines Acrylsäure-Ester-Copolymer enthalten ist.Sewing thread according to one of claims 1, 2 or 3, characterized in that a dispersion based on an acrylic acid ester copolymer is additionally contained. Nähfaden nach einem der Ansprüche 1, 2, 3 oder 9, dadurch gekennzeichnet, daß zusätzlich eine Copolymer-Dispersion aus Styrol und n-Butylacrylat enthalten ist.Sewing thread according to one of claims 1, 2, 3 or 9, characterized in that a copolymer dispersion of styrene and n-butyl acrylate is additionally contained.
EP95250115A 1994-05-27 1995-05-12 Sewing thread Withdrawn EP0686723A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419396 1994-05-27
DE19944419396 DE4419396C2 (en) 1994-05-27 1994-05-27 Sewing thread

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EP0686723A2 true EP0686723A2 (en) 1995-12-13
EP0686723A3 EP0686723A3 (en) 1997-07-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120121901A1 (en) * 2010-11-16 2012-05-17 Lee Bong-Kyu Water based bond sewing thread and method of manufacturing the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4447359C5 (en) * 1994-12-21 2009-01-02 ALTERFIL Nähfaden GmbH Bauschiges sewing thread
CN110318255B (en) * 2019-07-10 2022-06-28 桐庐雷泰生物科技有限公司 Spinning oil containing capsaicin, and preparation method and application thereof

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NL8500539A (en) * 1985-02-26 1986-09-16 Tno SWUBLIC POLYMER ALLOYS, METHOD FOR PREPARING SUCH POLYMER ALLOYS AND PRODUCTS PREPARED ON THE BASIS OF SUCH POLYMER ALLOYS.
TR27697A (en) * 1990-12-27 1995-06-19 Karl Greifeneder The method of changing the property of a textile substrate.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120121901A1 (en) * 2010-11-16 2012-05-17 Lee Bong-Kyu Water based bond sewing thread and method of manufacturing the same

Also Published As

Publication number Publication date
EP0686723A3 (en) 1997-07-02
DE4419396A1 (en) 1995-12-07
DE4419396C2 (en) 1997-04-24

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