EP3669022B1 - Corde d'instrument de musique - Google Patents

Corde d'instrument de musique Download PDF

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Publication number
EP3669022B1
EP3669022B1 EP17758116.2A EP17758116A EP3669022B1 EP 3669022 B1 EP3669022 B1 EP 3669022B1 EP 17758116 A EP17758116 A EP 17758116A EP 3669022 B1 EP3669022 B1 EP 3669022B1
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EP
European Patent Office
Prior art keywords
core
string
thermoplastic fibres
thermoplastic
bundle
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
EP17758116.2A
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German (de)
English (en)
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EP3669022A1 (fr
Inventor
Thomas Zwieg
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.)
Larsen Strings AS
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Larsen Strings AS
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Publication date
Application filed by Larsen Strings AS filed Critical Larsen Strings AS
Publication of EP3669022A1 publication Critical patent/EP3669022A1/fr
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Publication of EP3669022B1 publication Critical patent/EP3669022B1/fr
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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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/444—Yarns or threads for use in sports applications
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear
    • 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
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/10—Strings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials

Definitions

  • the present invention relates to a musical instrument string and a sports racquet string and a method of manufacturing the same.
  • the string can also be used as a line for a fishing rod or as a material for a fishing gear, in particular a fishing net.
  • strings with a natural gut core have excellent playing characteristics, in particular high energy efficiency in impulse excitation and impulse transmission, which among other things leads to an easy, fast and precise response.
  • the natural gut string core is a bundle of twisted and chemically cross-linked gut strips that together form a strand of exceptional strength, flexibility, and resilience.
  • strings with a natural gut core also have a number of serious disadvantages. These include the high sensitivity to temperature and humidity fluctuations, which lead to low load and tuning stability. Furthermore, due to the unavoidably high property tolerances in natural products, there are large quality fluctuations in products that are actually the same. Strings with a core made of natural gut therefore only meet the requirements of today's concerts and sporting competitions to a limited extent.
  • strings with a core made of polymer fibers are known, e.g US2,226,529 made of polyamide or in GB2303730A made of PEEK.
  • the string core such as in AT169306 , AT309188 or EP2 099 022 A1 described, usually made of fiber bundles or multifilament yarns.
  • AT169306 , AT309188 or EP2099022 mentioned above, a specified number of multifilament yarns are bundled for the core and - comparable to natural gut - usually twisted in during the production of the string core.
  • there is no chemical crosslinking ie the filaments are always without significant destruction separable.
  • the internal damping and thus the sound of the strings can be influenced by the predeterminable number of synthetic polymer fibers and the twisting of these, which makes them particularly suitable for bowed strings.
  • a disadvantage of such musical strings is that, in comparison to strings with a core made of natural gut or polymer fibers, they can only be excited by applying a comparatively high bow pressure and are therefore only conditionally suitable for making music with different dynamics and/or timbres.
  • Such musical strings also have the disadvantage that they react poorly to a change of bow, so that these musical strings are perceived by the musician as slow and braking, and with such musical strings it is only possible to a limited extent to cleanly intonate fast runs or bow changes in spiccato and to play.
  • the US5,601,762 describes strings for musical instruments, sports equipment or fishing, which have a composite core made of a plurality of polymer threads which are connected with a binding resin. According to the example 2 the US5,601,762 the string thus formed is coated with another resin. For further Treating the strings beats the US5,601,762 before undergoing treatment with radioactive radiation.
  • the U.S. 4,016,714 describes strings for racquets and musical instruments comprising a composite core of a plurality of thermoplastic filaments twisted together, bonded with a first cationic wetting agent and finally bonded with a thermoplastic binder resin.
  • a string with a core made of a thermoplastic is known, which is covered with many thin threads made of vinyl fluoride, which in turn are likely to be covered with a resin.
  • the JPH 03205070 A in turn describes a string with a composite rope core, which is stranded from individual composite elements.
  • Each of the composite elements consists of aramid fibers fused together with nylon fibers. The composites are then twisted and wound with additional aramid and nylon fibers, which are embedded in a nylon resin that forms the surface of the string.
  • a musical string with at least one composite core is known, in which the at least one composite core comprises a first core element and a second core element, the first core element and the second core element comprising at least one organic material, and the first core element and the second core element being connected at least in regions by means of of an intervening and/or enveloping first polymer element, characterized in that when the musical string is tensioned with a predeterminable tuning weight, the first polymer element is essentially tension-free.
  • the string elements are constructed from different materials.
  • the actual core material is distinguished here from a connecting polymer.
  • US3645819 discloses a musical instrument string composed of fused fibers having a core-sheath structure.
  • the present invention is therefore based on the object of providing a musical instrument or sports racket string with high stability and consistency in terms of strength, elasticity and flexibility, which is characterized in particular by lower energy losses during excitation and impulse transmission as well as a longer service life.
  • a musical instrument string or sports racket string according to claim 1.
  • a materially bonded connection is to be understood in particular as a connection of the thermoplastic fibers that cannot be detached without damage or even destruction.
  • string core is also used here when the string core or string does not have a covering.
  • the bundle of thermoplastic fibers forms a self-bonded flexible strand.
  • the string core can comprise a plurality of said bundles of thermoplastic fibers, with the bundles of thermoplastic fibers forming a plurality of flexible strands that are each bound in themselves.
  • thermoplastic fibers are highly stretched. This manifests itself in the fact that the macromolecules of the fibers show an orientation and orientation along the fiber axis. In addition to the amorphous phase, they also contain crystalline areas.
  • the fibers are at least partially crystalline.
  • the elongation of the thermoplastic fibers at room temperature and maximum tensile load is less than 20% and the elongation at break of the thermoplastic fibers is less than 25%.
  • thermoplastic fibers of the bundle or at least one of the bundles are expediently twisted or twisted around one another.
  • thermoplastic fibers have a core-sheath structure.
  • the fiber core of the core-sheath structure comprises or consists of a first thermoplastic material and the fiber sheath of the core-sheath structure comprises a second thermoplastic material.
  • the fiber sheath volume proportion of the core-sheath structure is less than 60% by volume, more preferably less than 30% by volume and particularly preferably less than 20% by volume.
  • the fiber sheath also contains ferromagnetic and/or ferrimagnetic particles, in particular solid particles.
  • the particles advantageously have a primary particle diameter of less than 500 nm.
  • first thermoplastic material and the second thermoplastic material are identical.
  • first thermoplastic material and the second thermoplastic material can also be different.
  • thermoplastic fibers expediently comprise or consist of polyaryletherketone, PAEK, preferably polyetheretherketone, PEEK, and/or polyamide, PA, and/or polyimide, PI, and/or polyphenylene sulfide, PPS, and/or polyvinylidene fluoride, PVDF.
  • the string has at least one covering, preferably made of at least one plastic or at least one metal, which is arranged or wound around the core of the string, preferably helically.
  • the method comprises the continuous or batchwise feeding of a bundle of thermoplastic fibers while simultaneously heating the same in continuous or batchwise flow or past a magnetic induction device or the same.
  • thermoplastic fibers without a fiber sheath are also at least partially melted on the surface by heating the fiber sheaths of surrounding thermoplastic fibers with a core-sheath structure and fused with the same in the contact areas and bonded to one another.
  • the tension of the thermoplastic fibers is advantageously adjusted as they pass through or past the induction heating device.
  • this can be done, for example, by a mechanical tension weight, by spring force or mechanical roller resistance at one or both string ends or by the tension hooks holding the string, which tighten or stretch the fiber bundle to the desired extent.
  • this can be done, for example, by different speeds of the godets/rollers transporting the fibers or by mass or spring-loaded tension rollers.
  • thermoplastic fibers are expediently twisted together before they are fused.
  • the string core is formed from a plurality of said bundles, each forming a strand, preferably in a twisted form.
  • the surface of the string core is mechanically ground and/or polished.
  • the string core is provided with a first covering, preferably made of a preferably round or flat wire or of a polymeric monofilament, wound around the string core, preferably helically.
  • the string core is provided with at least one additional covering, preferably made of a particularly round or flat wire or of a polymeric monofilament, preferably wound in parallel or crossed helically around the first covering.
  • the present invention is based on the surprising finding that the innovative, direct and material connection of the thermoplastic fibers of the string core reduces or even prevents energy loss in the string core through friction of loosely connected individual fibers when the string is loaded and moved, and at the same time the strength, elasticity and flexibility of the string core is improved. Furthermore, there are no binders, resins or intermediate polymers used in the prior art, which avoids numerous phase transitions from material to material, which lead to high energy losses of the applied impulse and thus to poorer playing and tonal response.
  • strings with such a new type of string core show an extraordinarily high level of stability and consistency in terms of strength, elasticity and flexibility.
  • the strings have high load and tuning stability, a particularly easy and quick response even with quick bow changes and in spiccato even with the lightest bow pressure.
  • a string in particular for bowed and/or plucked instruments, but also sports equipment, comprising a core (string core) and optionally at least a first covering, which is arranged around the string core, is used to achieve a load or Suggested tuning stability, quick response and - for musical strings - a clean, singing sound, that the core comprises a predeterminable multiplicity of multi-component thermoplastic fibers which are at least partially cohesively connected to one another by the formation of local melting zones in the interface region of the thermoplastic fibers and therefore cannot be separated from one another without being destroyed.
  • a string can be realized which has a particularly light, fast and precise response comparable to the strings with a natural gut, but without their particularly disadvantageous sensitivity to fluctuations in humidity and temperature.
  • the musical instrument string has a clean, richly colored and singing sound even with the slightest excitation. Combined with a large dynamic spectrum, it expands a musician's artistic possibilities of expression.
  • the musical instrument strings are also recommended for baroque or medieval stringed instruments.
  • strings made with the novel string core can also be used without additional winding, i.e. with a bare core, both as musical instrument strings and also as sports racket strings, since the core forms a solid, bound strand, at least in one special embodiment.
  • strings with this new type of bare core are recommended, for example, for use as violin E and A or viola A and D strings, which historically were also used as non-spanning gut strings.
  • these strings still lack the surface optimization with, for example, a longitudinal grind, the colored threading at the ends and the suspension, for example ball.
  • the core of the string can also be formed from more than one of the individual strands that are bonded to one another, for example from three, five or more such strands.
  • the strands can be twisted together in a specified number.
  • this multi-strand string core can be used with the loosely twisted strands or additionally heated locally in a magnetic field and thus made even more compact.
  • thermoplastic fiber 10 shown has a circular cross section and a core-sheath structure, with the fiber core 12 consisting of a first thermoplastic material and the fiber sheath 14 consisting of a second thermoplastic material and ferromagnetic particles embedded therein, only some of which are indicated by reference numeral 16.
  • the ferromagnetic particles are distributed evenly only in the fiber cladding.
  • the figure 2 shows a string core 18 in the making from a plurality of thermoplastic fibers 10, as shown in FIG figure 1 is shown.
  • the thermoplastic fibers 10 are in the in figure 2 shown stage not yet connected.
  • the figure 3 are those in the figure 2 shown thermoplastic fibers 10 in the longitudinal direction at least partially melted together at the interfaces 20. Fusing can be done, for example, by passing through a magnetic induction device (not shown).
  • the ferromagnetic particles 16 only heat the fiber sheath 14 as it passes through the induction device and at least partially melts it and connects it to directly adjacent thermoplastic fibers in a materially bonded manner.
  • the thermoplastic fibers form a bundle 22.
  • the high mechanical strength properties of the fiber core achieved in the stretching process are retained due to the exclusive heating of the fiber sheath.
  • a string core 18 of a string in the process of being formed is shown. This consists of several bundles 22 according to figure 3 and each of the bundles 22 forms a self-contained flexible strand. While the string core 18 in the figure 4 is composed of seven bundles 22 or strands, there is the string core 18 of figure 5 even from nineteen such bundles 22.
  • figure 6 shows a string core 18 of a string that is in the process of being formed. This includes both thermoplastic fibers 10 with a core-sheath structure and thermoplastic fibers 11 without the same.
  • the variant shown includes the string core 18 of a string thermoplastic fibers 10 with a core-sheath structure and thermoplastic fibers 11 without a core-sheath structure and fibers 24, which consist of another material, such as a metal, glass or a non-thermoplastic material.
  • FIG 8 a musical instrument string 26 having a string core 18, the composition of which is not shown in detail, and a first covering 28, an outer second covering 30 surrounding the first covering 28 and an outer third covering 32 surrounding the second covering 30.
  • the first covering 28 and the The second sheath 30 each consists of a braiding of metallic round wire or polymer monofilament, while the third sheath 32 consists of a braiding of metallic flat wire or a polymer tape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Ropes Or Cables (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Stringed Musical Instruments (AREA)

Claims (18)

  1. Corde d'instrument de musique (26) ou corde de raquette de sport, comprenant une âme de corde (18) qui comprend un faisceau (22) de fibres thermoplastiques hautement étirées (10) ou est constituée de celui-ci, l'allongement des fibres thermoplastiques (10) à la température ambiante et pour une charge de traction maximale étant inférieur à 20 % et l'allongement à la rupture des fibres thermoplastiques (10) étant inférieur à 25 %, au moins une partie des fibres thermoplastiques (10) ayant une structure âme-gaine, au moins certaines fibres thermoplastiques (10) du faisceau (22) étant au moins partiellement reliées entre elles par une liaison de matière, par exemple en formant des points ou des lignes, par fusion au niveau des interfaces (20) des gaines de fibre (14) de la structure âme-gaine, caractérisée en ce que la gaine de fibre (14) contient en outre des particules ferromagnétiques et/ou ferrimagnétiques (16), en particulier des particules solides.
  2. Corde selon la revendication 1, le faisceau (22) de fibres thermoplastiques (10) formant un brin flexible auto-lié.
  3. Corde selon la revendication 2, l'âme de corde (18) comprend une pluralité de faisceaux (22) de fibres thermoplastiques (10), les faisceaux de fibres thermoplastiques formant une pluralité de brins flexibles auto-liés.
  4. Corde selon l'une des revendications précédentes, les fibres thermoplastiques (10) du faisceau (22) ou d'au moins un des faisceaux étant torsadées ou retordues les unes autour des autres.
  5. Corde selon l'une des revendications précédentes, l'âme de fibre (12) de la structure âme-gaine comprenant une première matière thermoplastique ou étant constituée de celle-ci et la gaine de fibre (14) de la structure âme-gaine comprenant une deuxième matière thermoplastique.
  6. Corde selon l'une des revendications précédentes, la proportion en volume de gaine de fibre de la structure âme-gaine étant inférieure à 60 % en volume, plus préférablement inférieure à 30 % en volume et de manière particulièrement préférée inférieure à 20 % en volume.
  7. Corde selon la revendication 5 ou 6, les particules (16) ayant un diamètre de particule primaire inférieur à 500 nm.
  8. Corde selon l'une des revendications 5 à 7, la première matière thermoplastique et la deuxième matière thermoplastique étant identiques.
  9. Corde selon l'une des revendications précédentes, les fibres thermoplastiques (10) comprenant de la polyaryléthercétone, PAEK, de préférence de la polyétheréthercétone, PEEK, et/ou du polyamide, PA, et/ou du polyimide, PI, et/ou du sulfure de polyphénylène, PPS, et/ou du fluorure de polyvinylidène, PVDF, ou étant constituées de ceux-ci.
  10. Corde selon l'une des revendications précédentes, ladite corde comportant au moins une gaine (28), de préférence en au moins une matière synthétique ou en au moins un métal, qui est disposée ou enroulée, de préférence en hélice, autour de l'âme de corde (18).
  11. Procédé de fabrication d'une corde selon l'une des revendications précédentes, ledit procédé comprenant l'alimentation continue ou discontinue d'un faisceau (22) de fibres thermoplastiques (10) avec chauffage simultané de celui-ci et passage continu ou discontinu à travers un dispositif d'induction magnétique ou devant celui-ci pour chauffer, dans le cas de fibres thermoplastiques (10) ayant la structure âme-gaine, exclusivement la gaine de fibre (14) de la structure âme-gaine par chauffage inductif au moyen des particules ferromagnétiques et/ou ferrimagnétiques et pour au moins la faire fondre, au moins certaines fibres thermoplastiques (10) du faisceau (22) étant au moins partiellement reliées entre elles par une liaison de matière, par exemple en formant des points ou des lignes, par fusion au niveau des interfaces (20) des gaines de fibre (14).
  12. Procédé selon la revendication 11, des fibres thermoplastiques (11) sans structure âme-gaine étant également au moins partiellement fondues au niveau de la surface par chauffage des gaines des fibres thermoplastiques environnantes (10) ayant une structure âme-gaine et étant fusionnées avec elles dans les zones de contact et liées par une liaison de matière.
  13. Procédé selon l'une des revendications 11 et 12, la tension des fibres thermoplastiques (10) étant réglée lors du passage à travers ou devant le dispositif de chauffage par induction.
  14. Procédé selon l'une des revendications 11 à 13, les fibres thermoplastiques (10) étant torsadées les unes avec les autres avant la fusion.
  15. Procédé selon l'une des revendications 11 à 14, l'âme de corde (18) étant formée à partir d'une pluralité de faisceaux (22) formant chacun un toron, de préférence sous une forme torsadée.
  16. Procédé selon l'une des revendications 11 à 15, la surface de l'âme de corde (18) étant rectifiée mécaniquement et/ou polie.
  17. Procédé selon l'une des revendications 11 à 16, l'âme de corde (18) étant pourvue d'une première gaine (28), de préférence constituée d'un fil de préférence rond ou plat ou d'un monofilament polymère et de préférence enroulée hélicoïdalement autour de l'âme de corde.
  18. Procédé selon la revendication 17, l'âme de corde (18) étant pourvue d'au moins une autre gaine (30, 32), de préférence constituée d'un fil en particulier rond ou plat ou d'un monofilament polymère et enroulée hélicoïdalement en parallèle ou en croix autour de la première gaine.
EP17758116.2A 2017-08-18 2017-08-18 Corde d'instrument de musique Active EP3669022B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/070947 WO2019034263A1 (fr) 2017-08-18 2017-08-18 Corde d'instrument de musique

Publications (2)

Publication Number Publication Date
EP3669022A1 EP3669022A1 (fr) 2020-06-24
EP3669022B1 true EP3669022B1 (fr) 2022-03-09

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EP17758116.2A Active EP3669022B1 (fr) 2017-08-18 2017-08-18 Corde d'instrument de musique

Country Status (5)

Country Link
US (1) US11293119B2 (fr)
EP (1) EP3669022B1 (fr)
CN (1) CN110997994B (fr)
DK (1) DK3669022T3 (fr)
WO (1) WO2019034263A1 (fr)

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US2641949A (en) 1948-04-24 1953-06-16 Jensen Povl Emanuel Metal string for musical instruments
AT169306B (de) 1950-03-22 1951-11-10 Rudolf Wohlrab Musiksaiten, insbesondere für Streich- und Zupfinstrumente
US3050431A (en) * 1958-07-07 1962-08-21 Ashaway Line & Twine Mfg Manufacture of tennis strings
GB1205281A (en) * 1967-03-16 1970-09-16 Toray Industries A method for manufacturing synthetic multicore composite filaments and fabrics made therewith
AT309188B (de) 1968-08-28 1973-08-10 Aristona Musiksaiten Fabrikati Verfahren zur Herstellung einer Saite für Streichinstrumente
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JPH0315086Y2 (fr) * 1986-01-23 1991-04-03
JP2640240B2 (ja) * 1988-04-13 1997-08-13 日本石油株式会社 ロープの製造法
JPH03205070A (ja) 1990-09-19 1991-09-06 Goosen:Kk ガットの製造法
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US5601762A (en) 1993-12-14 1997-02-11 Ferrari Importing Company Method for enhancing the properties of a string used in a stringing device
GB2303730B (en) 1995-07-18 2000-01-26 Zyex Limited Musical instrument strings
CA2530039C (fr) * 2005-12-14 2014-02-11 Yoz-Ami Corporation Methode de fabrication d'une ligne de fil autohesion
AT504015B1 (de) 2006-04-10 2008-10-15 Thomastik Infeld Ges M B H Musiksaite
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AT506135B1 (de) * 2007-10-29 2009-11-15 Thomastik Infeld Ges M B H Musiksaite
US8048471B2 (en) * 2007-12-21 2011-11-01 Innovatech, Llc Marked precoated medical device and method of manufacturing same
US7714217B2 (en) * 2007-12-21 2010-05-11 Innovatech, Llc Marked precoated strings and method of manufacturing same
EP2099022A1 (fr) 2008-03-07 2009-09-09 Thomastik-Infeld Gesellschaft m.b.H. Cordes musicales
EP2131352A1 (fr) 2008-05-30 2009-12-09 Thomastik-Infeld Gesellschaft m.b.H. Corde d'instrument de musique
BE1018246A3 (nl) * 2008-08-14 2010-07-06 Luxilon Ind Nv Kunststofsnaar.
FR2950816B1 (fr) * 2009-10-01 2012-04-13 Babolat Vs Ame pour corde de raquette, corde pour raquette comprenant une telle ame et procede de fabrication correspondant
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US20130252497A1 (en) * 2011-11-14 2013-09-26 Faserinstitut Bremen E.V. Thermoplastic fibre, hybrid yarn, fibre perform and method for producing fibre performs for fibre composite components, in particular high performance fibre composite component, using the same, fibre composite component and method for producing fibre composite components, in particular high performance fibre composite components
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JP5593005B1 (ja) * 2013-04-19 2014-09-17 株式会社ゴーセン ラケット用ストリング及びその製造方法

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Publication number Publication date
WO2019034263A1 (fr) 2019-02-21
US20200248343A1 (en) 2020-08-06
CN110997994A (zh) 2020-04-10
DK3669022T3 (da) 2022-06-13
EP3669022A1 (fr) 2020-06-24
US11293119B2 (en) 2022-04-05
CN110997994B (zh) 2022-07-22

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