EP2588658B1 - Fil à coudre et procédé pour réaliser un fil à coudre - Google Patents

Fil à coudre et procédé pour réaliser un fil à coudre Download PDF

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Publication number
EP2588658B1
EP2588658B1 EP11730604.3A EP11730604A EP2588658B1 EP 2588658 B1 EP2588658 B1 EP 2588658B1 EP 11730604 A EP11730604 A EP 11730604A EP 2588658 B1 EP2588658 B1 EP 2588658B1
Authority
EP
European Patent Office
Prior art keywords
staple
sewing thread
fibres
fibers
yarn
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.)
Active
Application number
EP11730604.3A
Other languages
German (de)
English (en)
Other versions
EP2588658A2 (fr
Inventor
Heide SCHMIDT
Birgit DENKEL
Florian Gojny
Reiner Bode
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.)
SGL Carbon SE
Original Assignee
SGL Carbon SE
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 SGL Carbon SE filed Critical SGL Carbon SE
Publication of EP2588658A2 publication Critical patent/EP2588658A2/fr
Application granted granted Critical
Publication of EP2588658B1 publication Critical patent/EP2588658B1/fr
Active legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • 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
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch

Definitions

  • the present invention relates to a sewing thread and a method for producing a sewing thread.
  • the present invention relates to a sewing yarn in the form of a staple fiber yarn made of carbon and in particular to a corresponding production method.
  • the present invention further relates to measures for improving the properties of CF rovings and CF staple fiber yarns, in particular for use in embedding in elastomers, thermoplastics and / or thermosets, e.g. Phenolic resins.
  • EP-A-2 147 776 shows a sewing yarn (ie, attachment yarn) formed as a spun yarn from a staple fiber material of staple fibers formed with or from carbon fiber materials and coated or impregnated with one or more coating materials and / or impregnating materials.
  • EP-A-2,160,072 shows a similar sewing thread.
  • US-A-2007/0148455 describes a yarn which can also be used for sewing, which is formed as spun yarn from a staple fiber material, which is formed with or from carbonized PAN fibers.
  • the invention is based on the object of specifying a sewing thread and corresponding production method, in which a constant and constant profile of the sewing thread can be ensured in a simple and nevertheless reliable manner and in particular with simple processability.
  • a sewing thread is provided, which is formed as a spun yarn from a staple fiber material with or from staple fibers - and which is formed with or from one or more carbon fiber materials.
  • Carbon fibers have proven to be particularly advantageous in chemical and physical process engineering and in many technical applications proved, because they can be adjusted in their property profile in a particularly suitable and constant manner and as such in terms of their mechanical, thermal, chemical and electrical properties of particular advantage in many applications.
  • the staple fibers as individual fibers are wholly or partly coated or impregnated in their entirety with one or more coating materials and / or impregnating materials.
  • the staple fiber yarn may be wholly or partly obtained from a multifilament yarn or roving, in particular from a Multifilamentcarbonroving or be.
  • the staple fiber yarn may in particular be wholly or partly obtained from a stretch-broken and / or cut multifilament yarn or roving, in particular from a stretch-broken multifilament carbon roving.
  • the staple fiber yarn may also be wholly or partially obtained from a textile fabric, a scrim, in particular a carbon fabric, a woven fabric, in particular a carbon fabric, and / or combinations thereof.
  • the staple fiber yarn may be formed with or from filaments or filament sections having a length in the range of about 10 mm to about 250 mm.
  • All aspects are of course also applicable to multifilament yarns or multifilament rovings and their transformation, e.g. their introduction into a surrounding matrix material, e.g. of an elastomer, thermoplastic and / or thermoset, e.g. a phenolic resin, wherein in particular an impregnation and / or coating, e.g. by precipitation or in the manner of a coating, aspects of the static and / or dynamic loading, the internal and / or external friction and / or the embedding in and interaction with the embedding matrix material and thus the transmission of force, thrust and pressure are advantageous to develop.
  • a surrounding matrix material e.g. of an elastomer, thermoplastic and / or thermoset, e.g. a phenolic resin
  • the staple fiber yarn may be formed with or from filaments or filament portions based on glass material fibers, acrylic material fibers, polyester fibers, polyamide fibers, basalt material fiber and / or combinations thereof, as one or a hybrid type, preferably having a carbon fiber content in the range greater than 10 %.
  • the coating and / or the impregnation with the coating material or the impregnating material can be or are formed by etching and in particular as a coating.
  • the basic principles provided according to the invention are also applicable to fiber types other than carbon fibers and staple fibers, in particular with regard to coating and / or impregnation.
  • the present invention thus also provides a method for producing a sewing thread, in which the sewing thread is formed as a spun yarn from a staple fiber material with or from staple fibers and wherein the sewing thread is formed with or from one or more carbon fiber materials.
  • the staple fibers are wholly or partially coated or impregnated as single fibers in their entirety with one or more coating materials and / or impregnating materials.
  • the staple fiber yarn can be obtained procedurally wholly or partly from a multifilament yarn or roving, in particular a Multifilamentcarbonroving.
  • the staple fiber yarn can be wholly or partly obtained from a stretch-torn and / or cut multifilament yarn or roving, in particular a stretch-torn and / or cut multifilament carbon roving, wherein the process of stretch ripping and / or cutting can be designed to be integrated in particular in the process.
  • the staple fiber yarn can be wholly or partly obtained from a textile fabric, a scrim, in particular a carbon web, a fabric, in particular a carbon fabric, and / or combinations thereof, e.g. also as part of a recycling process.
  • the filaments or filament sections for the staple fiber yarn may be formed to have a length in the range of about 10 mm to about 250 mm.
  • the staple fiber yarn may be formed with or from filaments or filament portions based on glass material fibers, acrylic material fibers, polyester fibers, polyamide fibers, and / or combinations thereof, as one or a hybrid type, preferably having a carbon fiber content in the range of more, besides carbon-based materials than 10%.
  • the coating and / or impregnation with the coating material or the impregnating material can be formed by quenching and in particular as a coating.
  • the present invention relates to staple fiber yarns of carbon and their manufacture, and to methods and possibilities for improving the properties of CF rovings and CF staple yarns, in particular also for use in elastomers, thermoplastics and thermosetting plastics, eg in phenolic resins.
  • the surface can be increased, this rotation is used to protect the yarn composite.
  • the processing is limited.
  • the filament yarns have a very high strength, but a low elongation.
  • Spun yarn 10 of staple fibers 20 of limited length so can produce a yarn 10 with higher elongation.
  • a carbon roving with a high filament number can be used as a raw material for the stretch-broken staple fiber yarn.
  • Carbon fibers have a high strength, but unfortunately also a low ductility. For this reason, carbon fibers in textile processes can only be processed comparatively slowly and at relatively high cost.
  • the improvement can be measured by fiber abrasion, the number of strand breaks and the processing speed become. In this case, an improvement is then achieved in consequence also in the sewing and knitting processes. Such sized yarns can be woven more effectively, resulting, among other things, in higher productivity.
  • An embodiment of the surface treatment can be based on the following aspects according to the invention:
  • the use of an elastic sizing with a low glass transition temperature to coat fibers 20 and yarns 10 results in a more suitable surface which ensures improved processability.
  • This procedure is also suitable for the treatment of all fiber types, but especially of carbon and ceramic fibers.
  • impregnation, coating and / or wrapping improved incorporation of a CF roving, CF staple fiber yarn or respective monofilaments in matrix systems, e.g. made of rubber, thermoplastic and / or duroplast, possible. Furthermore, an improvement of the transmission of force, thrust and / or pressure can be achieved by such impregnation, embedding and / or coating.
  • thermoplastic fibers 20 and / or materials into continuous rovings or filament yarns are described for this purpose. Since such processes can also take place with the supply of heat, it is achieved in such embodiments that the thermoplastic melts and completely incorporates the CF filaments. The complete incorporation and protection of the filaments 20 or filament sections 20 reduces the internal friction among each other and thus increases the dynamic strength of the product.
  • An impregnation 40 and / or coating 30 of the fibers 20, fiber groups 25 or the yarn 10 as a whole reduce or prevent on the one hand the formation of dust by abrasion, but on the other hand also the adhesion resulting or existing dust on the fibers 20, the fiber groups 25 or the yarn 10th as a whole.
  • Fig. 1A to 1D describe in schematic cross-sectional view various embodiments of a sewing thread 10.
  • Fig. 1A is a schematic cross-sectional view of a group 25 or a bundle 25 of individual filaments 20 or fibers 20 of a fiber material 20 'shown, which form a group 10 or bundle 25 after a corresponding spinning process, a yarn 10 and in particular a sewing thread 10.
  • the actual fibers 20 are staple fibers, ie fiber or filament sections of finite length, which are or are spun together by a spinning process.
  • the material 20 'of the underlying fibers 20 or filaments 20 is a carbon material or carbon material so that the filaments 20 or fibers 20 may be referred to as carbon fibers or carbon fibers in a narrower or broader sense.
  • the individual fibers or filaments 20 are formed on their surface 20a, that is to say the lateral surface 20a of the fibers 20 or filaments 20, with a coating 30 of a coating material 30 '.
  • the individual fibers 20 or filaments 20 are formed over their surface 20a, that is to say over their lateral surface 20a with an impregnation 40 with an impregnating material 40 '. That is, the impregnating material 40 'penetrates or penetrates the surface 20a of the fibers 20 or filaments 20 to effect surface modification there.
  • the representations of the Fig. 1B with the coating 30 and the Fig. 1C with impregnation 40 represent extreme perspectives of the conditions expected in reality. As a rule, mixing processes will take place as soon as possible a coating material 30 'or an impregnating material 40' is applied to the surface 20a of any fiber 20 or any filament 20. This means that the applied materials 30 ', 40' on the one hand realize or effect a coating 30, but on the other hand also an impregnation 40.
  • the group 25 or bundle 25 of the plurality of fibers 20 or fiber segments 20 is embedded in an embedding 50 with or of an embedding material 50 'such that the fibers 20 or fiber sections 20 no longer individually or individually with their surface 20a in Appear appearance.
  • aspects 50 are also combined with the embedding 50, for example, by embedding fibers 20 or fiber sections 20 formed as a group 25 with a coating 30 or an impregnation 40 overall in an embedding 50.
  • the Fig. 2 shows in the manner of a schematic flow diagram aspects of an embodiment of the method according to the invention for producing a sewing thread 10 according to the invention.
  • an intermediate processing step S2 the provided staple fiber material is optionally processed between, for example, to dissolve or produce a certain order of the staple fibers or to perform a surface treatment or the like.
  • this step of intermediate processing S2 is optional and only provided in certain embodiments of the manufacturing method according to the invention, that is not mandatory in each embodiment of the invention.
  • the resulting product is considered a roving, e.g. is still surface-treated and / or introduced into an embedding 50.
  • the final step S5 ends the process.
  • the Fig. 3 shows partial aspects of step S1 of providing the staple fibers or the staple fiber material.
  • first a roving e.g. in the sense of a multifilament roving on the basis of a carbon fiber material or carbon fiber material, but optionally also based on other fiber materials, provided in a first substep T1.
  • fiber section material which is e.g. from a recycling process and fibrous waste, e.g. used in a felt-like way.
  • Fig. 4 shows partial aspects of the optional intermediate processing step S2.
  • a first substep U1 the basic staple fiber material provided is dissolved and / or parallelized, by means of a so-called carding machine.
  • the actual production of the sewing thread 10 takes place in the context of a spinning process of the underlying staple fiber material, e.g. using a ring spinning machine, a rotor spinning machine or a friction spinning machine.
  • the basic yarn obtained can be regarded as a roving and subjected to a twisting process, in order, for example, to apply a twisting process. to produce a double thread or the like.
  • a textile structure is formed with or out of the sewing thread 10, in particular by means of a weaving process, preferably as one or two-dimensional textile type, one or in the manner of a woven, laid, braided, knitted, knitted fabric and / or or their combinations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Woven Fabrics (AREA)

Claims (7)

  1. Fil de couture (10) constitué, en tant que fil de fibre tissé, d'un matériau de fibre discontinue de fibres discontinues (20),
    lequel est constitué avec ou constitué de matériaux de fibres de carbone (20') et
    dans lequel les fibres discontinues (20), en tant que fibres simples (20) et dans leur totalité, sont revêtues ou imprégnées entièrement ou partiellement d'un ou de plusieurs matériaux de revêtement (30') et/ou de matériaux d'imprégnations (40').
  2. Fil de couture (10) selon la revendication 1,
    présentant une teneur du ou des matériaux de revêtement (30') et/ou du ou des matériaux d'imprégnation (40') située dans la plage de 0,1 % à 50 %.
  3. Fil de couture (10) selon l'une des revendications précédentes,
    dans lequel les fibres discontinues présentent une longueur située dans la plage de 10 mm à 250 mm.
  4. Fil de couture (10) selon l'une des revendications précédentes, lequel comprend des fibres discontinues à base de fibres de matériau de verre, de fibres de matériau acrylique, de fibres de polyester, de fibres de polyamide et/ou des combinaisons de ceux-ci, en tant qu'hybride, à raison d'une proportion de fibres de carbone dans la plage supérieure à 10 %.
  5. Procédé de fabrication d'un fil de couture (10) selon l'une des revendications précédentes, lequel fil de couture, en tant que fil de fibre tissé, est constitué d'un matériau de fibre discontinue de fibres discontinues (20), comprenant les étapes suivantes :
    a) la préparation d'un matériau de fibre discontinue avec ou à partir de matériaux de fibres de carbone (20')
    b) le revêtement et/ou l'imprégnation des fibres discontinues (20) en tant que fibres simples (20) dans leur totalité, entièrement ou partiellement
    c) le filage du matériau de fibre discontinue.
  6. Procédé selon la revendication 5, dans lequel le fil de fibre discontinue est formé de fibres simples (20) présentant une longueur située dans la plage de 10 mm à 250 mm.
  7. Utilisation du fil de couture (10) selon l'une des revendications 1 à 4, pour la production d'un tissu, d'une nappe, d'un lacis, d'un tricot, d'un ouvrage et/ou de combinaisons de ceux-ci.
EP11730604.3A 2010-06-30 2011-06-21 Fil à coudre et procédé pour réaliser un fil à coudre Active EP2588658B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010030773A DE102010030773A1 (de) 2010-06-30 2010-06-30 Garn oder Nähgarn und Verfahren zum Herstellen eines Garns oder Nähgarns
PCT/EP2011/060290 WO2012000827A2 (fr) 2010-06-30 2011-06-21 Fil ou fil à coudre et procédé pour réaliser un fil ou un fil à coudre

Publications (2)

Publication Number Publication Date
EP2588658A2 EP2588658A2 (fr) 2013-05-08
EP2588658B1 true EP2588658B1 (fr) 2019-04-24

Family

ID=44628223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11730604.3A Active EP2588658B1 (fr) 2010-06-30 2011-06-21 Fil à coudre et procédé pour réaliser un fil à coudre

Country Status (6)

Country Link
US (1) US20130118142A1 (fr)
EP (1) EP2588658B1 (fr)
JP (1) JP5717852B2 (fr)
DE (1) DE102010030773A1 (fr)
ES (1) ES2731854T3 (fr)
WO (1) WO2012000827A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991632B1 (fr) 2012-06-07 2014-06-27 Michelin & Cie Tringle hybride allegee pour pneumatique.
FR2991631B1 (fr) * 2012-06-07 2015-04-24 Michelin & Cie Tringle pliable pour pneumatique.
FR3018324B1 (fr) 2014-03-04 2017-10-20 Valeo Materiaux De Friction Garniture d'embrayage a resistance mecanique elevee apres abus thermique
EP3015576A1 (fr) 2014-10-27 2016-05-04 Basf Se Procédé et dispositif de fabrication de semi-produits en fibre de carbone
KR101935632B1 (ko) * 2016-08-29 2019-01-04 롯데첨단소재(주) 탄소 섬유 스테이플을 포함하는 방적사 및 이의 제조방법
KR101993960B1 (ko) 2016-10-31 2019-06-27 롯데첨단소재(주) 탄소 섬유 강화 플라스틱용 직조물 및 이로부터 형성된 성형품
US10543646B2 (en) 2018-01-12 2020-01-28 Arevo, Inc. Structural sewing and overmolding
DE102019213250A1 (de) 2019-09-02 2021-03-04 Sgl Carbon Se Neuartiger Zwirn

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EP2147776A1 (fr) * 2008-07-23 2010-01-27 SGL Carbon SE Procédé de fabrication d'une matière composite renforcée par des fibres ainsi que matières composites renforcées par des fibres et leur utilisation
EP2160072A2 (fr) * 2008-08-27 2010-03-03 SGL Carbon SE Fils en fibre de carbone à étirement partiel pour un dispositif de chauffage

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DE9419410U1 (de) * 1994-11-24 1995-02-02 Amler, Werner, 91207 Lauf Nähfaden
EP2147776A1 (fr) * 2008-07-23 2010-01-27 SGL Carbon SE Procédé de fabrication d'une matière composite renforcée par des fibres ainsi que matières composites renforcées par des fibres et leur utilisation
EP2160072A2 (fr) * 2008-08-27 2010-03-03 SGL Carbon SE Fils en fibre de carbone à étirement partiel pour un dispositif de chauffage

Also Published As

Publication number Publication date
EP2588658A2 (fr) 2013-05-08
DE102010030773A1 (de) 2012-01-05
JP5717852B2 (ja) 2015-05-13
ES2731854T3 (es) 2019-11-19
WO2012000827A3 (fr) 2012-03-08
WO2012000827A2 (fr) 2012-01-05
JP2013533930A (ja) 2013-08-29
US20130118142A1 (en) 2013-05-16
WO2012000827A4 (fr) 2012-04-19

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