EP0119287B1 - Fil à coudre résistant à la chaleur et procédé pour sa production - Google Patents

Fil à coudre résistant à la chaleur et procédé pour sa production Download PDF

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Publication number
EP0119287B1
EP0119287B1 EP83102747A EP83102747A EP0119287B1 EP 0119287 B1 EP0119287 B1 EP 0119287B1 EP 83102747 A EP83102747 A EP 83102747A EP 83102747 A EP83102747 A EP 83102747A EP 0119287 B1 EP0119287 B1 EP 0119287B1
Authority
EP
European Patent Office
Prior art keywords
thread
association
heat
components
once
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83102747A
Other languages
German (de)
English (en)
Other versions
EP0119287A1 (fr
Inventor
Georg Thoma
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.)
Ackermann-Goggingen AG
Original Assignee
Ackermann-Goggingen AG
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 Ackermann-Goggingen AG filed Critical Ackermann-Goggingen AG
Priority to EP83102747A priority Critical patent/EP0119287B1/fr
Priority to DE8383102747T priority patent/DE3375169D1/de
Priority to AT83102747T priority patent/ATE31749T1/de
Publication of EP0119287A1 publication Critical patent/EP0119287A1/fr
Application granted granted Critical
Publication of EP0119287B1 publication Critical patent/EP0119287B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/08—Processes in which the treating agent is applied in powder or granular form
    • 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
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
    • 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
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • 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 invention relates to a temperature-resistant sewing thread from a thread assembly with two or more individual threads or yarns.
  • thermosetting resin coating In a known sewing thread of this type (GB-A-950 339), the individual thread components are twisted together in a conventional manner by a method known as "twisting". In addition to twisting or twisting the individual thread components, which primarily serves to mutually connect these components in the thread structure, an additional adhesive connection of the components of the thread structure is provided by a thermosetting resin coating.
  • the invention has for its object to provide a sewing thread of the type mentioned, which is much simpler and yet takes into account the high stresses in the machine sewing process.
  • the sewing thread according to the invention in which this object is achieved, is characterized essentially by the fact that components are contained in the largely rotation-free thread structure, which bring about a permanent adhesive connection of the thread structure by thermal liquefaction that is possible only once, with simultaneous mechanical pressing if necessary.
  • the sewing thread according to the invention is very stable even at high temperatures, and surprisingly it has sufficient strength for sewing purposes, although the individual thread components are assembled practically without rotation. Rather, the adhesive bond is sufficient to withstand the high thread stress that occurs when sewing with sewing machines due to the frequent changing processes, in particular when the needle is stitched quickly into the material, although heating can occur to such an extent that temperatures of up to 400 ° C and above occur.
  • the invention further relates to a method for producing a sewing thread, which is characterized in that a largely rotation-free thread assembly is formed first of all from individual threads or yarns and from one or more threads from components that can only be thermally liquefied, and a thermal treatment of this thread assembly is then carried out becomes.
  • This method has proven to be particularly simple and expedient with regard to the uniform distribution of the components which can only be thermally liquefied once in the thread structure.
  • a sewing thread according to the invention can also be produced in such a way that first a largely non-rotating thread assembly is formed from individual threads or yarns and that the thermally liquefiable components in the form of powder or in liquid form are subsequently added to this its thermal treatment takes place. In this way it would be unnecessary to first form a thread from components that can only be thermally liquefied once, which thread would have to be incorporated into the thread assembly before its thermal treatment takes place.
  • the latter is simultaneously subjected to compression of its individual threads or yarns.
  • the method according to the invention is characterized by the use of two-component resins in the form of epoxy or polyester resins as components which can only be thermally liquefied once.
  • the thermal adhesive connection mentioned can be carried out by heating the thermally bondable or weldable thread portion in the still open thread structure to bring about the adhesive connection, possibly with simultaneous mechanical pressing. However, the latter only takes place when the meltable thread portion is liquid or at least pasted and firmly connected to the other thread part (s) can, so as to form a glued whole thread.
  • Sewing threads of this type which are constructed largely without rotation and nevertheless have a firm bond of their constituents, can be processed in the most varied of fields of application. In particular, they are able to cope with the high thread stress, which inevitably occurs during the sewing process, insofar as this is carried out with the sewing machines known for it today, although the thread is heavily stressed by the frequent changing processes in the course of the seam formation.
  • the rapid sequence of the needle in the sewing material causes such a strong heating that temperatures of up to 400 ° C and more arise. For such increased force, elongation and in particular temperature stresses, threads as mentioned in the introduction are not or not optimally suitable or are associated with the disadvantage of particularly high production costs.
  • the sewing thread is not only able to withstand the stresses of use when sewing with sewing machines, but also those when dyeing at high temperatures without the risk of disintegration.
  • the thread or fiber connection in the combined thread structure can be made by feeding a material that can only be thermally pasted or liquefied once, e.g. in powder or liquid form. All techniques known per se, e.g. Diving, spraying, etc. can be used. However, it can also be added to the thread assembly in thread form.
  • a material such. B. epoxy or polyester resins, so-called two-component resins are used, which cure after a single thermal treatment.
  • Such resins are e.g. B. with the article name DD resins known. However, it can also be Desmofen or Desmodur resins.
  • it can, for B. also polypropylene or polyamide or polyethylene threads or powder, which are used for a single thermal connection.
  • the invention is not tied to the use of the substances or chemical materials listed above as examples. It is only essential that subsequent dissolution due to renewed exposure to temperature is excluded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (7)

1. Fil à coudre résistant à la chaleur constitué par un assemblage de deux ou plusieurs fils individuels ou filés, caractérisé par le fait que l'assemblage de fils quasiment sans torsion contient des éléments qui, par fluidification thermique qu'une seule fois possible et avec éventuellement pression mécanique simultanée, engendrent une liaison permanente par adhérence de l'assemblage de fils.
2. Procédé de fabrication d'un fil à coudre selon la revendication 1, caractérisé par le fait qu'à partir de fils individuels ou de filés et à partir d'un ou de plusieurs fils constitués d'éléments thermiquement fluidifiables qu'une seule fois, on forme tout d'abord un assemblage de fils quasiment sans torsion et qu'on procède ensuite à un traitement thermique de cet assemblage.
3. Procédé de fabrication d'un fil à coudre selon la revendication 1, caractérisé par le fait qu'à partir de fils individuels ou de filés, on forme tout d'abord un assemblage de fils quasiment sans torsion et qu'on lui ajoute ensuite les éléments thermiquementfluidifiables qu'une seule fois sous forme pulvérulente ou liquide avant d'effectuer son traitement thermique.
4. Procédé selon la revendication 2 ou 3, caractérisé par le fait que lors de l'exécution du traitement thermique, on soumet simultanément l'assemblage de fils à une pression de ses fils individuels ou filés.
5. Procédé selon la revendication 3, caractérisé par le fait qu'on ajoute les éléments se trouvant à l'état liquide etthermiquementfluidifiables qu'une seule fois par immersion ou aspersion de l'assemblage de fils.
6. Procédé selon l'une des revendications précédentes 2 à 5, caractérisé par l'emploi de résines à deux composants sous forme de résines époxydes ou polyesters en tant qu'éléments thermiquement fluidifiables qu'une seule fois.
7. Procédé selon l'une des revendications précédentes 2 à 6, caractérisé par le fait qu'on ajoute à l'assemblage de fils des éléments de fibres coupées pour obtenir une surface de fils rugueuse.
EP83102747A 1983-03-19 1983-03-19 Fil à coudre résistant à la chaleur et procédé pour sa production Expired EP0119287B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP83102747A EP0119287B1 (fr) 1983-03-19 1983-03-19 Fil à coudre résistant à la chaleur et procédé pour sa production
DE8383102747T DE3375169D1 (en) 1983-03-19 1983-03-19 Heat resistant sewing thread and method for its production
AT83102747T ATE31749T1 (de) 1983-03-19 1983-03-19 Temperaturbestaendiger naehfaden und verfahren zu seiner herstellung.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83102747A EP0119287B1 (fr) 1983-03-19 1983-03-19 Fil à coudre résistant à la chaleur et procédé pour sa production

Publications (2)

Publication Number Publication Date
EP0119287A1 EP0119287A1 (fr) 1984-09-26
EP0119287B1 true EP0119287B1 (fr) 1988-01-07

Family

ID=8190359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102747A Expired EP0119287B1 (fr) 1983-03-19 1983-03-19 Fil à coudre résistant à la chaleur et procédé pour sa production

Country Status (3)

Country Link
EP (1) EP0119287B1 (fr)
AT (1) ATE31749T1 (fr)
DE (1) DE3375169D1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717921A1 (de) * 1987-05-27 1988-12-15 Ackermann Goeggingen Ag Garn, insbesondere naehgarn, sowie verfahren und vorrichtung zu dessen herstellung
US4832025A (en) * 1987-07-30 1989-05-23 American Cyanamid Company Thermoplastic surgical suture with a melt fused length
DE3815696C1 (fr) * 1988-05-07 1989-08-24 Amann & Soehne Gmbh & Co, 7124 Boennigheim, De
DE4402630C1 (de) * 1994-01-31 1995-08-03 Lozetex Zwirne Gmbh Angelschnur
US5855156A (en) * 1996-05-10 1999-01-05 Ethicon, Inc. Apparatus for cutting a surgical suture tip
US5726422A (en) * 1996-05-10 1998-03-10 Ethicon, Inc. Apparatus with moving clamp for making surgical sutures, and method for using same
US5975876A (en) * 1996-05-10 1999-11-02 Ethicon, Inc. Combined apparatus for heating and cutting a surgical suture tip
US6730111B2 (en) 1996-10-30 2004-05-04 Semyon Shchervinsky Surgical tipping apparatus
US6126676A (en) * 1996-10-30 2000-10-03 Ethicon, Inc. Surgical tipping apparatus
US5891166A (en) * 1996-10-30 1999-04-06 Ethicon, Inc. Surgical suture having an ultrasonically formed tip, and apparatus and method for making same
US6001121A (en) * 1998-04-14 1999-12-14 Ethicon, Inc. Surgical suture having a thermally formed tip, and apparatus and method for making same
DE19961216A1 (de) * 1999-12-15 2001-06-28 Hempage Ag Bewehrungsmaterial, Verfahren zu seiner Herstellung und Anwendung des Bewehrungsmaterials
CN108570737A (zh) * 2017-03-10 2018-09-25 山华企业股份有限公司 高分子缝线结构及其使用方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB568675A (en) * 1943-03-12 1945-04-16 George Frederick Rayner Process of making composite yarns, and the composite yarns so produced
BE537158A (fr) * 1954-05-13
CH759162D (fr) * 1961-07-13
DE1510882A1 (de) * 1964-01-10 1969-11-13 Dorothea Rudolph Verfahren und Vorrichtung zur Erzeugung besonderer technologischer Werte und Eigenschaften von Faeden aus endlichen und endlosen Fasern
DE2818386C2 (de) * 1978-04-27 1982-03-11 Fröhlich & Wolff GmbH, 3436 Hessisch-Lichtenau Garn aus einem multifilen, synthetischen, polymeren Material und Verfahren zur Veredelung eines derartigen Garns

Also Published As

Publication number Publication date
DE3375169D1 (en) 1988-02-11
EP0119287A1 (fr) 1984-09-26
ATE31749T1 (de) 1988-01-15

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