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(11) EP 2 371 998 B1

(12) EUROPEAN PATENT SPECIFICATION

(45) Date of publication and mention (51) Int Cl.: of the grant of the patent: D01H 1/02 (2006.01) D01H 5/18 (2006.01) 30.03.2016 Bulletin 2016/13 D02G 3/36 (2006.01) D02G 3/38 (2006.01) D02G 3/28 (2006.01) (21) Application number: 09835970.6 (86) International application number: (22) Date of filing: 12.02.2009 PCT/CN2009/070408

(87) International publication number: WO 2010/075683 (08.07.2010 Gazette 2010/27)

(54) A SPINNING METHOD SCHLEUDERVERFAHREN PROCÉDÉ DE FILAGE

(84) Designated Contracting States: • SHEN, Xiaolin AT BE BG CH CY CZ DE DK EE ES FI FR GB GR Hubei 430073 (CN) HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL • YANG, Aiguo PT RO SE SI SK TR Shandong 272149 (CN) • LI, Baocang (30) Priority: 31.12.2008 CN 200810246351 Shandong 272149 (CN) • WANG, Jianping (43) Date of publication of application: Shandong 272149 (CN) 05.10.2011 Bulletin 2011/40 •QIN,Guang Shandong 272149 (CN) (73) Proprietors: • YU, Hengxing • Shandong Ruyi Sci.& Tech. Group Shandong 272073 (CN) Jining, Shandong 272073 (CN) • Wuhan University Of Science And Engineering (74) Representative: Pulieri, Gianluca Antonio Wuhan, Hubei 430073 (CN) Jacobacci & Partners S.p.A. • Shandong Jining Ruyi Woolen Textile Co., Ltd. Piazza della Vittoria, 11 Jining, Shandong 272149 (CN) 25122 Brescia (IT)

(72) Inventors: (56) References cited: •QIU,Yafu JP-A- 6 010 225 JP-A- S5 711 233 Jining JP-A- 60 126 328 JP-A- 2003 020 531 Shandong 272073 (CN) JP-A- 2003 073 944 JP-B1- S5 031 221 • XU, Weilin US-A- 3 264 816 US-A- 4 495 760 Hubei 430073 (CN) US-A- 5 115 630 • QIU, Dong Shandong 272149 (CN) • POURAHMAD A ET AL: "Production of core-spun • DING, Cailing yarn by the three-strand modified method", Shandong 272149 (CN) JOURNAL OF THE TEXTILE INSTITUTE, • CUI, Weigang WOODHEAD PUBLISHING LIMITED, Hubei 430073 (CN) CAMBRIDGESHIRE, GB, vol. 100, no. 3, 1 April • WANG, Wenge 2009 (2009-04-01) , pages 275-281, XP001522059, Shandong 272149 (CN) ISSN: 0040-5000, DOI: 10.1080/00405000701736865

Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). EP 2 371 998 B1

Printed by Jouve, 75001 PARIS (FR) 1 EP 2 371 998 B1 2

Description in the hairiness, strength and evenness of the yarn. In the present invention, the two filaments can support two [0001] The invention relates to a spinning method for rovings in the twisting triangle area, so as to prevent the producing yarns having various structures with the ring breaking ends. Special fiber yarns such as hemp fiber spinning frame, belonging to the technical field of textile 5 and apocynum fiber, may be produced on a conventional processing, as known e.g. from US-A-5,115,630, JP spinning device by using the spinning method according 350031221B, JP 357011233A, JP 2003073944A. to the present invention, so that the range of textile ma- [0002] With the scientific-technical development of the terial is enlarged. In addition, the improvement to the con- textile material and increasing requirements for fabric, ventional device is simple and the improved device is style and design of garments, the demand for spinning 10 conveniently used. technology is higher and higher, such as super high count yarn, multi-component composite yarn. Various spinning BRIEF DESCRIPTION OF THE DRAWINGS methods have been developed, such as sirofil spinning, siro spinning, compact spinning and cable spinning. [0006] These spinning methods considerably enrich the spin- 15 ning processing means, and greatly improve the yarn Fig. 1 is a schematic view of technological process quality. For example, sirofil spinning may produce a core- according to the present invention; spun yarn with a filament and a staple fiber roving; siro spinning may perform the doubling and twisting of two Fig. 2 is a schematic view of a drafting twist area in rovings, which may improve the quality of the yarn and 20 Fig. 1, illustrating the working principle; the limit fineness of the yarn made with the spinning frame; cable spinning is a method to divide a roving into Fig. 3 is a schematic view in the case that the fila- many strands using a groovy roller, and to perform the ments are fed at the outer side of the rovings; doubling and twisting of the strands, so as to reduce the hairiness of the yarn and improve the quality of the yarn; 25 Fig. 4 is a schematic view in the case that the fila- compact spinning is a method for improving the quality ments are fed at the inner side of the rovings; of the hairiness, which controls the movement of the fiber of the twisted strands to reduce the formation of the fiber Fig. 5 is a schematic view in the case that the fila- by using the negative pressure wind suction method or ments are coincidently fed with the rovings, respec- magnetic force pressurizing method and so on, so as to 30 tively; and improve the density and quality of the yarn. However, the above-mentioned spinning methods still can not meet all Fig. 6 is a schematic view in the case that the fila- people’s requirements for textile materials, various types ments are alternately fed with the rovings. of yarns and so on. For example, though sirofil spinning can produce a core-spun yarn with a filament and a staple 35 DETAILED DESCRIPTION fiber roving, the wrapping effect is not very good, i.e. the core yarn in center is prone to be exposed. Though siro [0007] Referring to Figs. 1 and 2, on each drafting spinning may perform the doubling and twisting of two mechanism of a ring spinning frame, two staple-fiber rov- rovings, there will be a lot of broken ends when producing ings a and a’ unwound from roving bobbins are brought high count yarn, because the fiber of each roving in the 40 into a drafting area though a guide trumpet 1 in parallel twisting triangle area is very small. so as to be drafted. There are a rear roller 2, a rear leather roller 2’, a middle roller 3, a middle leather roller 3’, an SUMMARY OF THE INVENTION apron 4, a front roller 5 and a front leather roller 5’ in the drafting area. Two filaments b and b’ are fed from the [0003] In view of the spinning requirements for current 45 back of the front roller 5, and respectively meet with the new textile materials, yarns of special structures and so two rovings a and a’ at a front jaw between the front roller on, the present invention provides an embedded type 5 and the front leather roller 5’. The two drafted rovings system positioning spinning method, which can produce a and a’ and two filaments b and b’ come out from the multi-component/multi-structure yarns with one ring spin- front jaw and enter into a twisting triangle area so as to ning frame. 50 be twisted, and then are wound onto a yarn bobbin 7 via [0004] The method of the invention is defined by claim a guide wire 6. 1. [0008] For illustrating the operating principle of the [0005] Using the above method, by changing the rel- present invention, schematic views when the two fila- ative position of the two fed rovings and two fed filaments, ments b and b’ and staple-fiber rovings a and a’ are fed themulti-component yarns having such as core structure, 55 from different relative positions are shown in Figs. 3 to wrapped structure or ply-like structure can be produced 6. When the filaments b and b’ are in different positions with one ring spinning frame. The structure of yarn can relative to staple-fiber rovings a and a’, with the control be precisely determined and more compact. It is better of feeding tensions of the filaments b and b’, the selection

2 3 EP 2 371 998 B1 4 of fineness of the filaments b and b’ and the selection of the roving bobbin, and enter into the drafting area though twist coefficient, different yarn 10 structures can be ob- the guide trumpet 1 in parallel so as to be drafted; two tained. In the feeding form shown in Fig. 3, a wrapped silks b and b’ are fed from the back of the front roller 5 yarn can be produced with the staple fiber being within under guiding of a location guide wire or a guide wheel. the filaments. In the feeding form shown in Fig. 4, a core 5 The silks b and b’ are parallel to and at the outer side of spun yarn can be produced with the filament being within the cotton rovings a and a’. The drafted two cotton rovings the staple fiber. In the feeding form shown in Fig. 5 (not a and a’ and two silks b and b’ are output from the front part of the present invention) and in Fig. 6, a yarn having jaw and enter into the twisting triangle area so as to be the structure similar to a ply yarn can be produced. Of twisted, and then are wound onto the yarn bobbin 7 via course, if the processing parameters are set improperly, 10 the guide wire 6. This produced yarn has a silk surface the produced yarn may have a farraginous and 15 dis- and a cotton roving core, so that the fabric made of such ordered structure of filament and staple fiber. However, yarn has a silk style and a low cost. the overall quality level of yarn, such as hairiness and strength, still can be improved. EXAMPLE 2 Spinning a Wool Core Spun Yarn [0009] The technical solution of the present invention 15 may be applied in spinning process, such as wool spin- [0014] Two wool rovings a and a’ are unwound from ning, cotton spinning, linen spinning and silk spinning, the roving bobbin, and enter into the drafting area to that is, the staple-fiber roving may be the roving made of though the guide trumpet 1 in parallel so as to be drafted; cotton, wool, linen, silk or short chemical fiber. The two two polyester filaments b and b’ are fed from the back of staple-fiber 20 rovings may be of the same material or 20 the front roller 5 under guiding of a location guide wire or different materials. The fed filament may be a chemical a guide wheel. The filaments b and b’ are parallel to and fiber filament, silk or yarn made of short fiber. at the inner side of the wool rovings a and a’. The drafted [0010] The technical solution of the present invention two wool rovings a and a’ and two polyester filaments b may be also applied to produce high count yarn and su- and b’ are output from the front jaw and enter into the per-high count yarn, and to produce fiber yearns that are 25 twisting triangle area so as to be twisted, and then are difficultto be produced inconventional spinningmethods, wound onto the yarn bobbin 7 via the guide wire 6. This such as ultra fine wool fiber, kapok fiber, algal fiber, produced yarn has a wool surface and a polyester fila- apocynum 25 fiber, basalt fiber, hemp fiber and rabbit fur ment core, so that the yarn has a wool style, an improved fiber, which have a short length, low strength and poor strength and a low cost. cohesion. Therefore, the present invention may be ap- 30 plied to various materials. EXAMPLE 3 Spinning a Ramie High Count Yarn [0011] The technical solution of the present invention may also achieve the effect of siro spinning and sirofil [0015] Two ramie rovings a and a’ are unwound from spinning by changing the number of the fed staple-fiber the roving bobbin, and enter into the drafting area though rovings and filaments, and thus may serve as an alter- 35 the guide trumpet 1 in parallel so as to be drafted; two native method of siro spinning and sirofil spinning. When polyester filaments of 50-120 denier b and b’ are fed from the two 30 fed rovings are combined together, or one the back of the front roller 5 under guiding of the guide roving is directly fed, the yarn produced according to the wire or the guide wheel. The polyester filaments b and present invention has the same yarn structure as pro- b’ are parallel to the ramie rovings a and a’ respectively, duced by sirofil spinning. When only two rovings are fed 40 wherein the polyester filament b is overlapped with the without filament, the yarn produced according to the roving a and the polyester filament b’ is overlapped with present invention has the same yarn structure as pro- the roving a’. The drafted two ramie rovings a and a’ and duced by siro spinning. There can be many other varia- two polyester filaments b and b’ are output from the front tions in the present invention, for example, two rovings jaw and then enter into the twisting triangle area so as and one filament located between the two rovings are 45 to be twisted, and then are wound onto the yarn bobbin fed; or two filaments and one roving located between the 7 via the guide wire 6. two filaments are fed. Therefore, many kinds of com- [0016] It is difficult to produce high count yarn with the pound yarn can be produced according to the technical ramie, because the ramie has a large diameter, a large solution of the present invention, and thus the present rigidity and a poor cohesion. Though high count yarn of invention may be widely used. 50 more than 80 counts may be produced by adopting sirofil [0012] Hereinafter, the features and applications of the spinning, the produced yarn is of the conventional core present invention are further illustrated by specific exam- structure, so that the ramie fiber is prone to peel off, which ples. may affect subsequent processing and utilization effect. The yarn produced by adopting the above technical so- EXAMPLE 1 Spinning a Silk Style Yarn with the Cotton 55 lution of the present invention is similar to the yarn which Ring Spinning Frame is formed by doubling and twisting two yarns produced by sirofil spinning, and the polyester filament and short [0013] Two cotton rovings a and a’ are unwound from ramie fiber are entangled and combined together more

3 5 EP 2 371 998 B1 6 closely, which may effectively prevent the ramie fiber spun. Taking hemp fiber as an example, the method is from falling off, and obviously improve the problem of the illustrated in detailed as below. yarn hairiness. [0020] Two rovings a and a’ made of hemp fibers are unwound from the roving bobbin, and enter into the draft- EXAMPLE 4 Spinning Wool Super High Count Yarn 5 ing area though a guide trumpet 1 in parallel so as to be drafted; two polyester or other chemical filaments b and [0017] Two rovings a and a’ made of ultra fine wool are b’ of 20-120 denier are fed from the back of the front roller unwound from the roving bobbin, and enter into the draft- 5 under guiding of the guide wire or the guide wheel. The ing area though the guide trumpet 1 in parallel so as to filaments b and b’ are parallel to the hemp rovings a and be drafted; two water soluble vinylon filaments b and b’ 10 a’, wherein the filaments b and b’ are alternately arranged of 20-50 denier are fed from the back of the front roller 5 with the rovings a and a’. The drafted two rovings a and under guiding of the guide wire or the guide wheel. The a’ and two filaments b and b’ are output from the front vinylon filaments b and b’ are parallel to are at the outer jaw and enter into the twisting triangle area so as to be side of the rovings a and a’. The drafted two rovings a twisted, and then are wound onto the yarn bobbin 7 via and a’ and two vinylon filaments b and b’ are output from 15 the guide wire 6. The chemical fiber of the filament may the front jaw and then enter into the twisting triangle area improve the strength of the hemp fiber, so as to ensure so as to be twisted, and then are wound onto the yarn that the hemp fiber may be twisted after being output bobbin 7 via the guide wire 6. The water soluble vinylon from the front jaw during spinning, and prevent the short wrapping wool yarn is produced, and the water soluble hemp fiber from breaking in the twisting triangle area. vinylon is then dissolved in hot water so as to produce 20 Theproduced yarnmay meet themechanics requirement high count pure wool yarn. In order to further improve the in the yarn spinning because of the filament existing in fineness of the yarn, two fed rovings a and a’ may be the produced yarn. In addition, the filament wraps the united, that is, to feed only one roving. short hemp fiber, so the yarn has the feature of the hemp [0018] Generally, the super high count yarn refers to fiber. the cotton yarn of more than 120 Ne (English yarn count) 25 or the wool yarn of 220 Nm (metrical yarn count). Be- EXAMPLE 6 Spinning Untwisted Yarn cause the number of the fibers in the cross section of yarn is very small (approximately the limit number) due [0021] The untwisted yarn is the yarn which has to high yarn count, it is difficult to produce the super high straight fibers being parallel with each other and untwist- count yarn by directly spinning. Currently, the super high 30 ed in the center and fibers wound on the surface. The count yarn is produced by spinning with the carrier water- untwisted yarn is puffy, and is good material to make soluble fiber and then dissolving the carrier water-soluble towel and underwear. At present, the untwisted yarn is fiber. At present, the super high count yarn is mainly pro- processed by using sirofil spinning, but it is difficult to duced by adopting carrier filament sirofil spinning. Be- ensure the quality of the yarn. The untwisted yarn may cause the number of the fibers in the cross section of 35 be easily processed by using the spinning method ac- produced yarn is very small, and the core is not well cording to the present invention. wrapped in the sirofil spinning, there are a lot of broken [0022] Two rovings a and a’ made of excellent long- ends during the spinning, and a lot of hairiness appears staple cotton are unwound from the roving bobbin, and on the fabric after the water soluble filament is dissolved, enter into the drafting area though a guide trumpet 1 in which will affect the quality of the yarn. However, for the 40 parallel so as to be drafted; two S twist short-staple yarns super high count yarn made by the spinning method ac- b and b’ of more than 80 Ne are fed from the back of the cording to the present invention, the carrier filament fiber front roller 5 under guiding of the location guide wire or is located on the surface of the yarn, and the structure the guide wheel. The S twist short-staple yarns b and b’ of the yarn will not changed after dissolving the filament, are parallel to the cotton rovings a and a’, wherein the S so the fabric has a good quality. Besides, during spinning, 45 twist short-staple yarns b and b’ are at the inner side of the fiber output from the front jaw may be supported by the cotton rovings a and a’. The drafted two rovings a the filament fiber, which can also prevent the yarn from and a’ and two S twist yarns b and b’ are output from the breaking and thus improve the spinning efficiency. front jaw and enter into the twisting triangle area so as to perform a Z twist, and then are wound onto the yarn EXAMPLE 5 Spinning Special Fiber Yarn 50 bobbin 7 via the guide wire 6, so that a Z twist untwisted yarn is produced with the inner fibers being straight and [0019] At present, with the development of the fiber parallel with each other and the outer fibers being closely processing technology, a lot of natural fibers with excel- wound. In order to increase the final count of the yarn, lent performances are developed, such as hemp fiber one of the two fed S twist short-staple yarn may be omit- and apocynum fiber. It is difficult to produce these fibers 55 ted, that is, only one S twist short-staple yarn may be fed, with the spinning frame due to the short length and low and this S twist short-staple is between two rovings a and strength of the fibers. By adopting the sinning method a’. In this way, the Z twist untwisted yarn may also be according to the present invention, these fibers can be produced with the inner fibers being straight and parallel

4 7 EP 2 371 998 B1 8 with each other and the outer fibers being closely wound. guiding of a location guide wire or a guide wheel from the back of the front roller (5), wherein the EXAMPLE7 Spinning Polyester ViscoseBlended Elastic two filaments (b, b’) are parallel to the two rov- Yarn ings (a, a’), there is a defined distance between 5 each of the two filaments (b, b’) and correspond- [0023] Two rovings a and a’ are unwound from the rov- ing one of the two rovings (a, a’) in a space de- ing bobbin, and enter into the drafting area though the fined by the front roller (5) and the front leather guide trumpet 1 in parallel so as to be drafted, wherein roller (5’), and wherein the parallel filaments (b, the roving a is made of viscose staple fiber, and the roving b’) are fed via the location guide wire or the guide a’ is made of polyester staple fiber; two polyurethane 10 wheel, and at a front jaw between the front roller filaments b and b’ are fed from the back of the front roller (5) and the front leather roller (5’), the parallel 5 under guiding of the location guide wire or the guide filaments (b, b’) are arranged at the inner side wheel. The polyurethane filaments b and b’ are parallel of the parallel rovings (a, a’); or the parallel fila- to and at the inner side of the rovings a and a’. The drafted ments (b, b’) are arranged at the outer side of two rovings a and a’ and two polyurethane filaments b 15 the parallel rovings (a, a’); or the parallel fila- and b’ are output from the front jaw and enter into the ments (b, b’) are alternately arranged with the twisting triangle area to be twisted, and then are wound parallel rovings (a, a’), onto the yarn bobbin 7 via the guide wire 6. As a result, combining the first filament (b) with the first rov- a polyester viscose blended elastic yarn is produced. ing (a), and combining the second filament (b’) 20 with the second roving (a’) after passing through EXAMPLE 8 Spinning Silk Type Elastic Yarn with the the front jaw, Cotton Ring Spinning Frame twisting the two drafted first and second rovings (a, a’) and two first and second filaments (b, b’) [0024] Two cotton rovings a and a’ are unwound from output from the front jaw in a twisting triangle the roving bobbin, and enter into the drafting area though 25 area, and a guide trumpet 1 in parallel so as to be drafted; a silk b winding the twisted yarn on a yarn bobbin (7) and a polyurethane filament b’ are fed from the back of via a guide wire (6). the front roller 5 under guiding of the location guide wire or the guide wheel. The silk b and polyurethane filament 2. The method according to claim 1, wherein the two b’ are parallel to the cotton rovings a and a’ respectively, 30 staple-fiber rovings (a, a’) are the same fiber mate- wherein the silk b is at the outer side of cotton rovings a rial, and the two filaments (b, b’) are the same fiber and a’, and the polyurethane filament b’ is at the inner material. side of the cotton rovings a and a’. The drafted two cotton rovings a and a’ and silk b and polyurethane filament b’ 3. The method according to claim 1, wherein the two are output from the front jaw and enter into the twisting 35 staple-fiber rovings (a, a’) are different fiber materi- triangle area so as to be twisted, and then are wound als, and the two filaments (b, b’) are different fiber onto the yarn bobbin 7 via the guide wire 6. The produced materials. yarn has silk on its surface, cotton in its middle and poly- urethane filament in its centre. The fabric made of this 4. The method according to claim 1, wherein the two yarn has silk style, and good elasticity. The use of cotton 40 filaments (b, b’) are silks, chemical fiber filaments, fibers decreases the cost of the yarn. or short-staple yarns.

Claims Patentansprüche 45 1. An embedded positioning spinning method, com- 1. Schleuderverfahren mit integrierter Positionierung, prising the following steps: umfassend die folgenden Schritte:

on each drafting mechanism of a ring spinning Einführen von zwei Stapelfaser-Vorgarnen (a, frame, introducing two staple-fiber rovings (a, 50 a’) an jedem Verstreckungsmechanismus einer a’) unwound from roving bobbins into a drafting Ringspinnmaschine, die von Vorgarn-Spulen in area though a guide trumpet (1) in parallel so as einen Streckbereich durch einen Führungs- to be drafted, wherein there are a rear roller (2), Spinntrichter (1) parallel abgewickelt werden, so a rear leather roller (2’), a middle roller (3), a dass sie gestreckt werden, wobei es im Streck- middle leather roller (3’), an apron (4), a front 55 bereich eine hintere Rolle (2), eine hintere Le- roller (5) and a front leather roller (5’) in the draft- derrolle (2’), eine mittlere Rolle (3), eine mittlere ing area, Lederrolle (3’), eine Schürze (4), eine vordere feeding two filaments (b, b’) in parallel under Rolle (5) und eine vordere Lederrolle (5’) gibt,

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Zuführen von zwei Filamenten (b, b’) unter Füh- pette de guidage (1) parallèlement de sorte à rungeines Fixierungsführungsdrahts oder eines être étirées, dans lequel il y a un rouleau arrière Führungsrads parallel vom hinteren Teil der vor- (2), un rouleau de cuir arrière (2’), un rouleau deren Rolle (5), wobei die zwei Filamente (b, b’) médian (3), un rouleau de cuir médian (3’), un parallel zu den zwei Vorgarnen (a, a’) sind, es 5 manchon (4), un rouleau avant (5) et un rouleau einen bestimmten Abstand zwischen jedem der de cuir avant (5’) dans la zone d’étirage, zwei Filamente (b, b’) und einem entsprechen- l’amenée de deux filaments (b, b’) parallèlement den der zwei Vorgarne (a, a’) in einem Raum en guidant un fil de guidage d’emplacement ou gibt, der von der vorderen Rolle (5) und der vor- une roue de guidage depuis l’arrière du rouleau deren Lederrolle (5’) bestimmt ist, und wobei die 10 avant (5), dans lequel les deux filaments (b, b’) parallelen Filamente (b, b’) über den Fixierungs- sont parallèles aux deux mèches (a, a’), une dis- führungsdraht oder das Führungsrad zugeführt tance est définie entre chacun des deux fila- werden, und an einem Vorderschenkel zwi- ments (b, b’) et correspond à l’une des deux mè- schen der vorderen Rolle (5) und der vorderen ches (a, a’) dans un espace défini par le rouleau Lederrolle (5’) die parallelen Filamente (b, b’) an 15 avant (5) et le rouleau de cuir avant (5’) et dans der Innenseite der parallelen Vorgarne (a, a’) lequel les filaments parallèles (b, b’) sont ame- angeordnet sind, oder die parallelen Filamente nés via le fil de guidage d’emplacement ou la (b, b’) an der Außenseite der parallelen Vorgar- roue de guidage, et sur une mâchoire de serrage ne (a, a’) angeordnet sind; oder die parallelen avant entre le rouleau avant (5) et le rouleau de Filamente (b, b’) abwechselnd mit den paralle- 20 cuiravant (5’), lesfilaments parallèles (b, b’) sont len Vorgarnen (a, a’) angeordnet sind, agencés sur le côté intérieur des mèches paral- Kombinieren des ersten Filaments (b) mit dem lèles (a, a’) ; ou les filaments parallèles (b, b’) ersten Vorgarn (a) und Kombinieren des zwei- sont agencés sur le côté extérieur des mèches ten Filaments (b’) mit dem zweiten Vorgarn (a’), parallèles (a, a’) ; ou les filaments parallèles (b, nachdem es durch den vorderen Schenkel ge- 25 b’) sont agencés alternativement avec les mè- langt ist, ches parallèles (a, a’), Verdrehen der zwei vorgestreckten ersten und la combinaison du premier filament (b) avec la zweiten Vorgarne (a, a’) und der zwei ersten und première mèche (a) et la combinaison du se- zweiten Filamente (b, b’), die von dem vorderen cond filament (b’) avec la seconde mèche (a’) Schenkel in einem dreieckigen Verdrehungsbe- 30 après le passage par la mâchoire de serrage reich ausgegeben werden, und avant, Aufwickeln des verdrehten Garns auf eine Garn- le retordage des deux première et seconde mè- spule (7) über einen Führungsdraht (6). ches étirées (a, a’) et des deux premier et se- cond filaments (b, b’) sortis de la mâchoire de 2. Verfahren nach Anspruch 1, wobei die zwei Stapel- 35 serrage avant dans une zone triangulaire de re- faser-Vorgarne (a, a’) aus dem gleichen Faserma- tordage et terial bestehen und die zwei Filamente (b, b’) aus l’enroulement du fil retordu sur une bobine de fil dem gleichen Fasermaterial bestehen. (7) par l’intermédiaire d’un fil de guidage (6).

3. Verfahren nach Anspruch 1, wobei die zwei Stapel- 40 2. Procédé selon la revendication 1, dans lequel les faser-Vorgarne (a, a’) unterschiedliche Fasermate- deux mèches de fibre à filer (a, a’) sont constituées ralien sind und die zwei Filamente (b, b’) unter- du même matériau de fibre et les deux filaments (b, schiedliche Fasermaterialien sind. b’) sont constitués du même matériau de fibre.

4. Verfahren nach Anspruch 1, wobei die zwei Filamen- 45 3. Procédé selon la revendication 1, dans lequel les te (b, b’) Seide, chemische Faserfilamente oder kur- deux mèches de fibre à filer (a, a’) sont constituées ze Stapelgarne sind. de différents matériaux de fibre et les deux filaments (b, b’) sont constitués de différents matériaux de fi- bre. Revendications 50 4. Procédé selon la revendication 1, dans lequel les 1. Procédé de filage et de positionnement associés, deux filaments (b, b’) sont des soies, des filaments comprenant les étapes suivantes : de fibre chimique ou des fils à court brin.

sur chaque mécanisme d’étirage d’un cadre de 55 filage annulaire, l’introduction de deux mèches de fibre à filer (a, a’) déroulées de bobines de mèche dans une zone d’étirage par une trom-

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REFERENCES CITED IN THE DESCRIPTION

This list of references cited by the applicant is for the reader’s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description

• US 5115630 A [0001] • JP 357011233 A [0001] • JP 350031221 B [0001] • JP 2003073944 A [0001]

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