EP2588658B1 - Sewing thread and method for producing a sewing thread - Google Patents
Sewing thread and method for producing a sewing thread Download PDFInfo
- 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
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- EP
- European Patent Office
- Prior art keywords
- staple
- sewing thread
- fibres
- fibers
- yarn
- Prior art date
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- 238000009958 sewing Methods 0.000 title claims description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000835 fiber Substances 0.000 claims description 91
- 239000000463 material Substances 0.000 claims description 49
- 239000011248 coating agent Substances 0.000 claims description 29
- 238000000576 coating method Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 28
- 238000005470 impregnation Methods 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 10
- 238000009987 spinning Methods 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 2
- 229920002972 Acrylic fiber Polymers 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 19
- 230000008569 process Effects 0.000 description 19
- 239000004917 carbon fiber Substances 0.000 description 15
- 239000002657 fibrous material Substances 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 238000012545 processing Methods 0.000 description 10
- 229920001169 thermoplastic Polymers 0.000 description 8
- 239000004416 thermosoftening plastic Substances 0.000 description 8
- 239000004753 textile Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 5
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010040 friction spinning Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000007383 open-end spinning Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007378 ring spinning Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000965 Duroplast Polymers 0.000 description 1
- 239000004638 Duroplast Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
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- 230000009477 glass transition Effects 0.000 description 1
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- 238000009940 knitting Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
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- 239000002994 raw material Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
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Images
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.
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- 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)
Description
Die vorliegende Erfindung betrifft ein Nähgarn sowie ein Verfahren zum Herstellen eines Nähgarns. Die vorliegende Erfindung betrifft insbesondere ein Nähgarn nach Art eines Stapelfasergarns aus Carbon und insbesondere ein entsprechendes Herstellungsverfahren. Die vorliegende Erfindung betrifft des Weiteren auch Maßnahmen zur Verbesserung der Eigenschaften von CF-Rovings und CF-Stapelfasergarnen, insbesondere für den Einsatz in Einbettung in Elastomeren, Thermoplasten und/oder Duroplasten, z.B. Phenolharzen.The present invention relates to a sewing thread and a method for producing a sewing thread. In particular, 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.
Bei der Herstellung, Verarbeitung und Verwendung von Garnen und insbesondere von Nähgarnen, also von Garnen, die in Nähprozessen eingesetzt und verwendet werden, treten aufgrund der zu Grunde liegenden Ausgangsmaterialien und deren Eigenschaften häufig Beschränkungen und andere Umstände auf, die nicht toleriert werden können.In the manufacture, processing and use of yarns and particularly sewing threads, ie yarns used and used in sewing processes, restrictions and other circumstances that can not be tolerated are often encountered due to the underlying starting materials and their properties.
Dies betrifft Aspekte der statischen und/oder dynamischen Belastbarkeit und der inneren und äußeren Reibung sowie damit im Zusammenhang stehende Folgeerscheinungen, z.B. aufgrund von innerer und äußerer Reibung sich ergebende Beeinflussungen des Garns oder Nähgarns hinsichtlich Struktur und Eigenschaften selbst, aber auch Aspekte der mit der Reibung in Zusammenhang stehenden Kontamination des Garns oder der Anwendungsumgebung durch Abrieb und dergleichen.
Der Erfindung liegt die Aufgabe zu Grunde, ein Nähgarn sowie entsprechende Herstellungsverfahren anzugeben, bei welchen auf einfache und gleichwohl zuverlässige Art und Weise und insbesondere bei einfacher Verarbeitbarkeit ein möglichst konstantes Eigenschaftenprofil des Nähgarns gewährleistet werden kann.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.
Die der Erfindung zu Grunde liegende Aufgabe wird bei einem Nähgarn erfindungsgemäß mit den Merkmalen des unabhängigen Patentanspruchs 1, sowie bei einem Verfahren zum Herstellen eines Nähgarns erfindungsgemäß mit den Merkmalen des unabhängigen Patentanspruchs 5 gelöst. Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen definiert.The object underlying the invention is achieved according to the invention with the features of independent claim 1, and in a method for producing a sewing thread according to the invention with the features of
Gemäß einem ersten Aspekt der vorliegenden Erfindung wird ein Nähgarn geschaffen, welches als Spinnfasergarn aus einem Stapelfasermaterial mit oder aus Stapelfasern - ausgebildet ist und welches mit oder aus einem oder mehreren Carbonfasermaterialien ausgebildet ist.According to a first aspect of the present invention, 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.
Es ist somit ein erster Aspekt der vorliegenden Erfindung, ein Nähgarn dadurch mit einem besonders konstanten Eigenschaftenprofil auszubilden, dass dieses auf der Grundlage eines oder nach Art eines Stapelfasergarns ausgebildet ist oder wird, wobei dieses Stapelfasergarn und letztlich das Nähgarn selbst mit oder aus einem oder mehreren Carbonfasermaterialien ausgebildet ist bzw. wird.It is thus a first aspect of the present invention to form a sewing yarn with a particularly constant property profile in that it is or will be formed on the basis of or in the manner of a staple fiber yarn, with this staple fiber yarn and ultimately the sewing yarn itself with or from one or more Carbon fiber materials is or is formed.
Carbonfasern haben sich in der chemischen und physikalischen Verfahrenstechnik und auf vielen technischen Anwendungsgebieten als besonders vorteilhaft erwiesen, weil sie in ihrem Eigenschaftenprofil auf besonders geeignete und konstante Art und Weise eingestellt werden können und als solche hinsichtlich ihrer mechanischen, thermischen, chemischen und elektrischen Eigenschaften von besonderem Vorteil in vielen Einsatzgebieten sind.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.
Die Stapelfasern als Einzelfasern sind in ihrer Gesamtheit ganz oder teilweise mit einem oder mehreren Beschichtungsmaterialien und/oder Imprägniermaterialien beschichtet bzw. imprägniert.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.
Das Stapelfasergarn kann ganz oder teilweise aus einem Multifilamentgarn oder -roving, insbesondere aus einem Multifilamentcarbonroving gewonnen sein oder werden.The staple fiber yarn may be wholly or partly obtained from a multifilament yarn or roving, in particular from a Multifilamentcarbonroving or be.
Das Stapelfasergarn kann dabei insbesondere ganz oder teilweise aus einem streckgerissenen und/oder geschnittenen Multifilamentgarn oder -roving, insbesondere aus einem streckgerissenen Multifilamentcarbonroving gewonnen sein oder werden.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.
Ferner kann das Stapelfasergarn auch ganz oder teilweise aus einem textilen Flächengebilde, einem Gelege, insbesondere einem Carbongelege, einem Gewebe, insbesondere einem Carbongewebe, und/oder deren Kombinationen gewonnen sein oder werden.Furthermore, 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.
Denkbar ist dabei insbesondere die Verwendung recycelter Materialien.In particular, the use of recycled materials is conceivable.
Darüber hinaus kann das Stapelfasergarn mit oder aus Filamenten oder Filamentabschnitten mit einer Länge im Bereich von etwa 10 mm bis etwa 250 mm gebildet sein.In addition, 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.
Es bieten sich also verschiedene Möglichkeiten an, auf deren Grundlage des zu Grunde liegende Stapelfasergarn für ein Nähgarn weitergebildet werden kann.Thus, there are various possibilities on the basis of which the underlying staple fiber yarn for a sewing yarn can be developed.
Sämtliche Aspekte sind natürlich auch auf Multifilamentgarne oder Multifilamentrovings und deren Umgestaltung, z.B. deren Einbringung in ein umgebendes Matrixmaterial, z.B. aus einem Elastomer, Thermoplast und/oder Duroplast, z.B. einem Phenolharz anwendbar, wobei insbesondere eine Imprägnierung und/oder Beschichtung, z.B. durch Beschlichten oder nach Art einer Beschlichtung, geeignet sind, Aspekte der statischen und/oder dynamischen Belastung, der inneren und/oder äußeren Reibung und/oder der Einbettung in sowie Wechselwirkung mit dem einbettenden Matrixmaterial und somit der Übertragung von Kraft, Schub und Druck vorteilhaft zu entwickeln.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.
Das Stapelfasergarn kann mit oder aus Filamenten oder Filamentabschnitten auf der Grundlage von Glasmaterialfasern, Acrylmaterialfasern, Polyesterfasern, Polyamidfasern, Basaltmaterialfaser und/oder deren Kombinationen ausgebildet sein oder werden, als ein oder nach Art eines Hybrids, vorzugsweise mit einem Carbonfaseranteil im Bereich von mehr als 10 %.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 %.
Die Beschichtung und/oder die Imprägnierung mit dem Beschichtungsmaterial bzw. dem Imprägniermaterial kann durch Beschlichten und insbesondere als Beschlichtung ausgebildet sein oder werden.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.
Die erfindungsgemäß vorgesehenen Grundprinzipien sind auch auf andere Fasertypen als Carbonfasern und Stapelfasern anwendbar, insbesondere hinsichtlich der Beschichtung und/oder Imprägnierung.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.
Gemäß weiteren Aspekten der vorliegenden Erfindung werden die der Erfindung zugrunde liegenden Prinzipien auch bei entsprechenden Herstellungsverfahren in vorteilhafter Weise eingebracht.According to further aspects of the present invention, the principles on which the invention is based are also advantageously incorporated in corresponding production methods.
Die vorliegende Erfindung schafft also einerseits auch ein Verfahren zum Herstellen eines Nähgarns, bei welchem das Nähgarn als Spinnfasergarn aus einem Stapelfasermaterial mit oder aus Stapelfasern - ausgebildet wird und bei welchem das Nähgarn mit oder aus einem oder mehreren Carbonfasermaterialien ausgebildet wird.On the one hand, 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.
Dabei werden die Stapelfaser als Einzelfasern in ihrer Gesamtheit ganz oder teilweise mit einem oder mehreren Beschichtungsmaterialien und/oder Imprägniermaterialien beschichtet bzw. imprägniert.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.
Das Stapelfasergarn kann verfahrensmäßig ganz oder teilweise aus einem Multifilamentgarn oder -roving, insbesondere einem Multifilamentcarbonroving gewonnen werden.The staple fiber yarn can be obtained procedurally wholly or partly from a multifilament yarn or roving, in particular a Multifilamentcarbonroving.
Dabei kann das Stapelfasergarn ganz oder teilweise aus einem streckgerissenen und/oder geschnittenen Multifilamentgarn oder -roving, insbesondere einem streckgerissenen und/oder geschnittenen Multifilamentcarbonroving gewonnen werden, wobei der Vorgang des Streckreißens und/oder Schneidens insbesondere in das Verfahren integriert ausgebildet sein kann.In this case, 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.
Andererseits kann das Stapelfasergarn ganz oder teilweise aus einem textilen Flächengebilde, einem Gelege, insbesondere einem Carbongelege, einem Gewebe, insbesondere einem Carbongewebe, und/oder deren Kombinationen gewonnen werden, z.B. auch im Rahmen eines Recyclingprozesses.On the other hand, 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.
Die Filamente oder Filamentabschnitte für das Stapelfasergarn können mit einer Länge im Bereich von etwa 10 mm bis etwa 250 mm ausgebildet werden.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.
Das Stapelfasergarn kann - neben den carbonbasierten Materialien - mit oder aus Filamenten oder Filamentabschnitten auf der Grundlage von Glasmaterialfasern, Acrylmaterialfasern, Polyesterfasern, Polyamidfasern und/oder deren Kombinationen ausgebildet werden, als ein oder nach Art eines Hybrids, vorzugsweise mit einem Carbonfaseranteil im Bereich von mehr als 10 %.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%.
Verfahrensmäßig können die Beschichtung und/oder Imprägnierung mit dem Beschichtungsmaterial bzw. dem Imprägniermaterial durch Beschlichten und insbesondere als Beschlichtung ausgebildet werden.According to the method, the coating and / or impregnation with the coating material or the impregnating material can be formed by quenching and in particular as a coating.
Diese und weitere Aspekte werden beispielhaft auf der Grundlage der beigefügten schematischen Zeichnungen erläutert.These and other aspects will be explained by way of example on the basis of the accompanying schematic drawings.
- Fig. 1A - DFig. 1A - D
- zeigen in schematischer und geschnittener Querschnittsansicht verschiedene Ausführungsformen des Nähgarns.show in schematic and sectional cross-sectional view different embodiments of the sewing thread.
- Fig. 2Fig. 2
- ist ein schematisches Blockdiagramm, welches eine Ausführungsform eines erfindungsgemäßen Verfahrens zum Herstellen eines erfindungsgemäßen Nähgarns zeigt.is a schematic block diagram showing an embodiment of a method according to the invention for producing a sewing thread according to the invention.
- Fig. 3, 4Fig. 3, 4
- sind schematische Blockdiagramme, die Detailaspekte von Ausführungsformen des erfindungsgemäßen Verfahrens zum Herstellen eines Nähgarns erläutern.FIG. 12 are schematic block diagrams illustrating detail aspects of embodiments of the method of producing a sewing thread according to the present invention. FIG.
Nachfolgend werden Ausführungsformen der vorliegenden Erfindung beschreiben. Sämtliche Ausführungsformen der Erfindung und auch ihre technischen Merkmale und Eigenschaften können einzeln isoliert oder wahlfrei zusammengestellt miteinander beliebig und ohne Einschränkung kombiniert werden.Hereinafter, embodiments of the present invention will be described. All embodiments of the invention and also their technical features and properties can be isolated individually or combined randomly combined with each other arbitrarily and without restriction.
Strukturell und/oder funktionell gleiche, ähnliche oder gleich wirkende Merkmale oder Elemente werden nachfolgend im Zusammenhang mit den Figuren mit denselben Bezugszeichen bezeichnet. Nicht in jedem Fall wird eine detaillierte Beschreibung dieser Merkmale oder Elemente wiederholt.Structurally and / or functionally identical, similar or identically acting features or elements are referred to below in connection with the figures with the same reference numerals. Not always will a detailed description of these features or elements be repeated.
Zunächst wird auf die Zeichnungen im Allgemeinen Bezug genommen.First of all, reference is made to the drawings in general.
Die vorliegende Erfindung betrifft Stapelfasergarne aus Carbon und deren Herstellung sowie Verfahren und Möglichkeiten zur Verbesserung der Eigenschaften von CF-Rovings und CF-Stapelfasergarne, insbesondere auch für den Einsatz in Elastomeren, Thermoplasten und Duroplasten, z.B. in Phenolharzen.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.
Dies führt im Prozess zu Zugkräften, die sich negativ auf das fertige Produkt auswirken können. Durch die Belastungen können die Filamente 20 beschädigt und somit die mechanischen Festigkeiten herabgesetzt werden. Es können sich auch Prozessstörungen herausbilden, z.B. im Zusammenhang mit einem Garnriss oder dergleichen.This leads to tensile forces in the process, which can have a negative effect on the finished product. The stresses can damage the
Mit Hilfe einer Drehung im Garn 10 kann die Oberfläche vergrößert werden, diese Drehung dient zum Schutz des Garnverbundes. Jedoch ist auch hier die Verarbeitung nur eingeschränkt möglich. Die Filamentgarne haben eine sehr hohe Festigkeit, jedoch eine niedrige Dehnung. Stellt man hingegen ein Stapelfasergarn her, d.h. Spinnfasergarn 10 aus Stapelfasern 20 mit begrenzter Länge, so lässt sich ein Garn 10 mit höherer Dehnung herstellen.With the help of a rotation in the
Als Rohstoff für das streckgerissene Stapelfasergarn kann ein Carbonroving mit hoher Filamentanzahl verwendet werden. Die Herstellung eines 1K-Rovings mit einem Filamentdurchmesser von oder unter 6 µm ist dagegen sehr kostenintensiv.As a raw material for the stretch-broken staple fiber yarn, a carbon roving with a high filament number can be used. The production of a 1K roving with a filament diameter of or below 6 microns, however, is very expensive.
Kohlenstofffasern weisen eine hohe Festigkeit, aber leider auch eine geringe Duktilität auf. Aus diesem Grund können Kohlenstofffasern in textilen Prozessen nur vergleichsweise langsam und unter vergleichsweise hohem Aufwand verarbeitet werden.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.
Es ist unter anderem auch ein Ziel der Erfindung, eine Beschichtung für Kohlenstofffasern 20, Garne 10 aus streckgerissenen Fasern 20 oder Panox 20, sowie weiterer spröder Fasern anzugeben, die die Verarbeitungseigenschaften verbessern.It is also an object of the invention to provide a coating for
Die Verbesserung kann unter anderem auch anhand des Faserabriebs, der Anzahl an Fandenbrüchen, sowie der Verarbeitungsgeschwindigkeit gemessen werden. Hierbei wird dann in Folge auch bei den Näh- und Wirkprozessen eine Verbesserung erzielt. Derartig beschlichtete Garne können effektiver Verwoben werden, was unter anderem einen höhere Produktivität zur Folge hat.Among other things, 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.
Eine Ausführungsform eines möglichen erfindungsgemäßen Herstellungsverfahrens kann folgende Schritte aufweisen:
- 1. Streckreißen und/oder Schneiden eines Multifilamentrovings, z.B. eine Rovings von über 48K, oder von textilen Flächengebilden, z.B. Recyclingmaterial aus Carbongelege oder -gewebe zu Filamenten, die eine Länge im Bereich von 10 - 250 mm haben.
- 2 Auflösen, Parallelisieren in einer Karde.
- 3. Herstellung eines Bandes in einer Strecke.
- 4. Gegebenenfalls und in Abhängigkeit von einem einzusetzenden Spinnverfahren, Weiterverarbeitung zu einer Flyerlunte.
- 5. Garnherstellung durch Spinnen, z.B. mit Hilfe einer Ringspinnmaschine, Rotorspinnmaschine oder einer Friktionspinnmaschine.
- 6. Zwirnherstellung, z.B. zu einem Zweifachzwirn.
- 7. Optionale Avivierung mit Textilhilfsmittel zur Verbesserung des Haft-/Gleitverhaltens, der Herabsetzung der statischen Reibung, der Erhöhung der dynamischen Reibung, dem thermischen Schutz sowie der Verbesserung des Faserreibverhaltens und Erhöhung der Dehnung.
- 1. stretch breaking and / or cutting a multifilament roving, eg a roving of more than 48K, or of textile fabrics, eg recycled material of carbon fabric or fabric into filaments having a length in the range of 10 - 250 mm.
- 2 dissolve, parallelize in a card.
- 3. Making a band in a track.
- 4. If necessary, and depending on a spinning process to be used, further processing to a Flyerlunte.
- 5. yarn production by spinning, for example by means of a ring spinning machine, rotor spinning machine or a friction spinning machine.
- 6. Twisting, eg to a twofold twist.
- 7. Optional finishing with textile auxiliaries to improve the adhesion / sliding behavior, the reduction of static friction, the increase of dynamic friction, the thermal protection and the improvement of the fiber friction behavior and increasing the elongation.
Eine Ausführungsform der Oberflächenbehandlung kann erfindungsgemäß auf folgenden Aspekten beruhen:
Die Verwendung einer elastischen Schlichte mit einer niedrigen Glasübergangstemperatur zur Beschichtung von Fasern 20 und Garnen 10 führt zu einer geeigneteren Oberfläche, die eine verbesserte Verarbeitbarkeit gewährleistet.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
Als besonders geeignet haben sich unter anderem selbstvernetzende carboxylierte Styrol-Butadien-Copolymere erwiesen, die in einem thermischen Trocknungsprozess vernetzen.Self-crosslinking carboxylated styrene-butadiene copolymers, which crosslink in a thermal drying process, have proven particularly suitable.
Neben einer sehr glatten Oberfläche, stellt insbesondere die elektrische Kontaktierbarkeit der Fasern eine interessante Eigenschaft dar. Hier ist der Einsatz als Heizleiter in Fördereinrichtungen, als oder bei Schläuchen, Förderbändern, heizbaren Flächengebilden, usw. denkbar.In addition to a very smooth surface, in particular the electrical contactability of the fibers is an interesting property. Here, the use as a heat conductor in conveyors, as or in hoses, conveyor belts, heatable fabrics, etc. conceivable.
Aufgrund der Flexibilität wird eine sanfte Schubübertragung zwischen den Fasern 20 und damit eine gute Krafteinleitung in den gesamten Strang 10 oder das gesamt Garn 10 gewährleistet.Due to the flexibility, a gentle shear transfer between the
Dieses Vorgehen eignet sich gleichfalls zur Behandlung aller Fasertypen, insbesondere aber von Kohlenstoff- und Keramikfasern.This procedure is also suitable for the treatment of all fiber types, but especially of carbon and ceramic fibers.
Weiterhin kann so auch eine gute Kompatibilität zu Elastomermatrizen gewährleistet werden.Furthermore, this also ensures good compatibility with elastomer matrices.
Im Hinblick auf die Verbesserung von Eigenschaften von CF-Rovings und CF-Stapelfasergarnen, insbesondere für den Einsatz in Elastomeren oder Thermoplasten, wird insbesondere die Verbesserung der Prozesseigenschaften durch Abriebverminderung und/oder Abriebvermeidung realisiert, insbesondere bei Strukturen, die Entstehen durch Flechten, Nähen, Weben oder dergleichen.With regard to the improvement of properties of CF rovings and CF staple fiber yarns, in particular for use in elastomers or thermoplastics, in particular the improvement of the process properties by abrasion reduction and / or abrasion prevention is realized, in particular in structures, the emergence by braiding, sewing, Weaving or the like.
Die Vermeidung von Reibung zwischen Einzelfilamenten, die auch als innere Reibung bezeichnet wird, wird ermöglicht durch eine teilweise oder vollständige Beschichtung, Imprägnierung und/oder Umhüllung eines jeweiligen Einzelfilaments oder Abschnitts eines Einzelfilaments mit einem Thermoplast oder einem entsprechenden anderen Material, welches die Reibung vermindert. Dadurch wird eine verbesserte Standfähigkeit erreicht, insbesondere bei dynamischer Beanspruchung. Dies kann in der Anwendung z.B. Aufzugseile, Treibriemen, Förderbänder oder dergleichen betreffen.The avoidance of friction between individual filaments, which is also referred to as internal friction, is made possible by a partial or complete Coating, impregnation and / or wrapping of a respective single filament or portion of a single filament with a thermoplastic or other equivalent material which reduces friction. As a result, improved stability is achieved, especially under dynamic load. In the application, this may concern elevator cables, drive belts, conveyor belts or the like.
Des Weiteren ist durch die Imprägnierung, Beschichtung und/oder Umhüllung auch eine verbesserte Einbindung eines CF-Rovings, CF-Stapelfasergarns oder der jeweiligen Einzelfilamente in Matrixsystemen, z.B. aus Gummi, Thermoplast und/oder Duroplast, möglich. Ferner kann durch eine derartige Imprägnierung, Einbettung und/oder Beschichtung auch eine Verbesserung der Übertragung von Kraft, Schub und/oder Druck erreicht werden.Further, by 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.
Erfindungsgemäß werden dazu entsprechende Verfahren des Einbringens thermoplastischer Fasern 20 und/oder Materialien in Endlosrovings oder Filamentgarne beschrieben. Da derartige Prozesse auch unter Zuführung von Wärme ablaufen können, wird bei derartigen Ausführungsformen erreicht, dass der Thermoplast schmilzt und die CF-Filamente komplett einbindet. Die komplette Einbindung und der Schutz der Filamente 20 oder Filamentabschnitte 20 verringert die innere Reibung untereinander und erhöht somit die dynamische Festigkeit des Produkts.According to the invention, corresponding methods of introducing
Eine Imprägnierung 40 und/oder Beschichtung 30 der Fasern 20, Fasergruppen 25 oder des Garns 10 als Ganzes reduzieren oder verhindern einerseits die Staubentstehung durch Abrieb, andererseits aber auch die Anhaftung entstehenden oder vorhandenen Staubs an den Fasern 20, den Fasergruppen 25 oder dem Garn 10 als Ganzes.An impregnation 40 and / or coating 30 of the
Nun wird im Detail auf die Zeichnungen Bezug genommen.Now, reference will be made in detail to the drawings.
Die
Bei der Ausführungsform der
Dabei ist erfindungswesentlich, dass es sich bei den eigentlichen Fasern 20 um Stapelfasern handelt, also um Faser- oder Filamentabschnitte mit endlicher Länge, die über einen Spinnprozess miteinander versponnen sind oder werden. Das Material 20' der zugrunde liegenden Fasern 20 oder Filamente 20 ist ein Kohlenstoffmaterial oder Carbonmaterial, so dass die Filamente 20 oder Fasern 20 als Kohlenstofffasern oder Carbonfasern in engerem oder weiterem Sinne bezeichnet werden können.It is essential to the invention that the
Bei der Ausführungsform der
Bei der Ausführungsform der
Die Darstellungen der
Bei der Ausführungsform der
Selbstverständlich können die im Zusammenhang mit den Ausführungsformen der
Die
Nach einem vorbereitenden Schritt S0 werden in einem Folgeschritt S1 Stapelfasern oder ein Stapelfasermaterial bereitgestellt.After a preparatory step S0, staple fibers or a staple fiber material are provided in a subsequent step S1.
In einem Zwischenverarbeitungsschritt S2 wird das bereitgestellte Stapelfasermaterial optional zwischen verarbeitet, um z.B. eine bestimmte Ordnung der Stapelfasern aufzulösen oder herzustellen oder eine Oberflächenbehandlung oder dergleichen durchzuführen. Dieser Schritt des Zwischenverarbeitens S2 ist jedoch optional und nur bei bestimmten Ausführungsformen des erfindungsgemäßen Herstellungsverfahrens vorzusehen, d.h. nicht bei jeder Ausführungsform der Erfindung zwingend.In 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. However, 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.
Danach folgt der Schritt des eigentlichen Herstellens des Nähgarns 10, nämlich ein Prozess des Spinnens S3 der bereitgestellten und gegebenenfalls zwischen verarbeiteten oder zwischen behandelten Stapelfasern.This is followed by the step of actually producing the
Es kann sich dann ein Nachverarbeitungsschritt anschließen, bei welchem das sich so ergebende Produkt als Vorgarn aufgefasst, z.B. noch oberflächenbehandelt und/oder in eine Einbettung 50 eingebracht wird.It may then be followed by a post-processing step in which the resulting product is considered a roving, e.g. is still surface-treated and / or introduced into an embedding 50.
Der abschließende Schritt S5 beendet das Verfahren.The final step S5 ends the process.
Die
Dabei wird bei der hier vorgestellten Ausführungsform zunächst ein Roving, z.B. im Sinne eines Multifilamentrovings auf der Grundlage eines Kohlenstofffasermaterials oder Carbonfasermaterials, gegebenenfalls aber auch auf der Grundlage anderer Fasermaterialien, in einem ersten Teilschritt T1 bereitgestellt.In this case, in the embodiment presented here, 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.
Dann schließt sich ein Prozess T2 des so genannten Streckreißens und/oder Schneidens an, bei welchem die an sich endlosen Einzelfilamente des Rovings in mehr oder weniger definierter Art und Weise in Faser- oder Filamentsegmente oder -abschnitte unterteilt wird. Dieses unterteilte Material bildet dann das Ausgangsmaterial für die Weiterverarbeitungsprozesse.This is followed by a process T2 of so-called stretch-tearing and / or cutting, in which the individual filaments of the roving, which are continuous per se, are subdivided into fiber or filament segments or sections in a more or less defined manner. This subdivided material then forms the starting material for the further processing processes.
Alternativ dazu kann z.B. auch bereits vorgelegtes Faserabschnittsmaterial vorgesehen werden, welches z.B. aus einem Recyclingprozess stammt und Fasermaterialabfälle, z.B. in filzartiger Art und Weise verwendet.Alternatively, e.g. provided already presented fiber section material, which is e.g. from a recycling process and fibrous waste, e.g. used in a felt-like way.
Bei dieser Ausführungsform wird in einem ersten Teilschritt U1 das bereitgestellte grundlegende Stapelfasermaterial aufgelöst und/oder parallelisiert, und zwar mittels einer so genannten Karde.In this embodiment, in a first substep U1, the basic staple fiber material provided is dissolved and / or parallelized, by means of a so-called carding machine.
Es schließt sich dann ein zweiter Teilschritt U2 der Herstellung eines Bandes in einer Strecke an.This is followed by a second sub-step U2 of the production of a strip in a route.
Darauf folgt dann als dritter Teilschritt U3 die Zwischenverarbeitung zu einer so genannten Lunte oder Flyerlunte.This is then followed by the third sub-step U3, the intermediate processing to a so-called Lunte or Flyerlunte.
Wie oben bereits beschrieben wurde, erfolgt die eigentliche Herstellung des Nähgarns 10 im Rahmen eines Spinnprozesses des zugrunde liegenden Stapelfasermaterials, z.B. unter Verwendung einer Ringspinnmaschine, einer Rotorspinnmaschine oder einer Friktionsspinnmaschine.As already described above, the actual production of the
Zur Verbesserung der Eigenschaften und insbesondere zur Steigerung der Stabilität des Nähgarns 10 kann das erhaltene grundlegende Garn als Vorgarn aufgefasst und einem Zwirnprozess unterzogen werden, um z.B. einen Zweifachzwirn oder dergleichen zu erzeugen.In order to improve the properties, and in particular to increase the stability of the
Davor und optional danach erfolgt ein Avivierungsprozess im Sinne einer Beschichtung, Beschlichtung, Imprägnierung und/oder Einbettung.Before and optionally thereafter, a refinement process takes place in the sense of coating, trimming, impregnation and / or embedding.
Die folgenden Tabellen zeigen Eigenschaften von Ausführungsformen erfindungsgemäß gefertigter Nähgarne 10.
Bei einer Weiterentwicklung des erfindungsgemäßen Verfahren wird mit oder aus dem Nähgarn 10 ein textiles Gebilde ausgebildet, insbesondere mittels eines Webprozesses, vorzugsweise als ein oder nach Art eines zweidimensionalen Textils, als ein oder nach Art eines Gewebes, Geleges, Geflechts, Gewirks, Gestricks und/oder deren Kombinationen.In a further development of the method according to the invention, a textile structure is formed with or out of the
- 1010
- Garn, NähgarnYarn, sewing thread
- 2020
- Faserfiber
- 20'20 '
- Fasermaterialfiber material
- 2525
- Gruppe von Fasern, FasergruppeGroup of fibers, fiber group
- 3030
- Beschichtungcoating
- 30'30 '
- Beschichtungsmaterialcoating material
- 4040
- Imprägnierungimpregnation
- 40'40 '
- Imprägniermaterialwaterproofing
- 5050
- Einbettungembedding
- 50'50 '
- Einbettungsmaterialembedding material
Claims (7)
- Sewing thread (10) that is formed as a spun yarn made of a staple fibre material consisting of staple fibres (20),
and contains or consists of carbon fibre materials (20'),
wherein all of the staple fibres (20) are coated or impregnated as individual fibres (20), fully or in part, with one or more coating materials (30') and/or impregnation materials (40'). - Sewing thread (10) according to claim 1,
containing the coating material or materials (30') and/or impregnation material or materials (40') in an amount in the range of from 0.1% to 50%. - Sewing thread (10) according to either of the preceding claims,
wherein the staple fibres have a length in the range of from 10 mm to 250 mm. - Sewing thread (10) according to any of the preceding claims, comprising staple fibres that are based on glass fibres, acrylic fibres, polyester fibres, polyamide fibres and/or combinations thereof, and in the form of a hybrid having a carbon fibre proportion in the range of more than 10%.
- Method for producing a sewing thread (10) according to any of the preceding claims that is formed as a spun yarn made of a staple fibre material consisting of staple fibres (20), comprising the following steps:a) providing a staple fibre material containing or consisting of carbon fibre materials (20');b) coating and/or impregnating all of the staple fibres (20) as individual fibres (20), fully or in part;c) spinning the staple fibre material.
- Method according to claim 5, wherein the staple fibre yarn is formed by individual fibres (20) having a length in the range of from 10 mm to 250 mm.
- Use of the sewing thread (10) according to any of claims 1 to 4 for producing a woven fabric, a laid fabric, a braid, a warp-knit fabric, a weft-knit fabric and/or combinations thereof.
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DE102010030773A DE102010030773A1 (en) | 2010-06-30 | 2010-06-30 | Yarn or sewing thread and method of making a yarn or sewing thread |
PCT/EP2011/060290 WO2012000827A2 (en) | 2010-06-30 | 2011-06-21 | Thread or sewing thread and method for producing a thread or sewing thread |
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JP (1) | JP5717852B2 (en) |
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FR2991632B1 (en) | 2012-06-07 | 2014-06-27 | Michelin & Cie | HYBRID ROD LIFT FOR PNEUMATIC. |
FR2991631B1 (en) * | 2012-06-07 | 2015-04-24 | Michelin & Cie | FOLDING ROD FOR PNEUMATIC. |
FR3018324B1 (en) | 2014-03-04 | 2017-10-20 | Valeo Materiaux De Friction | CLUTCH TRIM WITH HIGH MECHANICAL RESISTANCE AFTER THERMAL ABUSE |
EP3015576A1 (en) | 2014-10-27 | 2016-05-04 | Basf Se | Method and device for the preparation of carbon fibre semi-finished products |
KR101935632B1 (en) | 2016-08-29 | 2019-01-04 | 롯데첨단소재(주) | Spun yarn comprising carbon fiber staple and method for preparing the same |
KR101993960B1 (en) | 2016-10-31 | 2019-06-27 | 롯데첨단소재(주) | Woven textile fabric for carbon fiber reinforced plastic and article produced therefrom |
US10543646B2 (en) | 2018-01-12 | 2020-01-28 | Arevo, Inc. | Structural sewing and overmolding |
DE102019213250A1 (en) | 2019-09-02 | 2021-03-04 | Sgl Carbon Se | New thread |
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Also Published As
Publication number | Publication date |
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JP2013533930A (en) | 2013-08-29 |
US20130118142A1 (en) | 2013-05-16 |
EP2588658A2 (en) | 2013-05-08 |
WO2012000827A3 (en) | 2012-03-08 |
ES2731854T3 (en) | 2019-11-19 |
DE102010030773A1 (en) | 2012-01-05 |
WO2012000827A4 (en) | 2012-04-19 |
WO2012000827A2 (en) | 2012-01-05 |
JP5717852B2 (en) | 2015-05-13 |
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