EP0085634A1 - Method and apparatus to produce a spun yarn - Google Patents
Method and apparatus to produce a spun yarn Download PDFInfo
- Publication number
- EP0085634A1 EP0085634A1 EP83420008A EP83420008A EP0085634A1 EP 0085634 A1 EP0085634 A1 EP 0085634A1 EP 83420008 A EP83420008 A EP 83420008A EP 83420008 A EP83420008 A EP 83420008A EP 0085634 A1 EP0085634 A1 EP 0085634A1
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- EP
- European Patent Office
- Prior art keywords
- fibers
- core
- yarn
- multifilament
- elementary
- 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.)
- Granted
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 54
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000009987 spinning Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 3
- 238000006677 Appel reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
Definitions
- the present invention relates to an improved process, as well as to a device for its implementation, making it possible to produce in a simple and economical manner, at high speed, a new type of fiber yarn having a unidirectional twist along its length and without using ring winding systems and sliders.
- discontinuous fibers into a multifilament core, for example by using a false twist system acting on the core thread, so that upstream of such a false twist member, the filaments are separated and open, the fibers being incorporated at this level and the thread resuming its initial twist and consequently trapping the fibers at the exit of the spindle from the false twist.
- a false twist system acting on the core thread
- the method according to the invention has great flexibility by the fact that it can be used both for obtaining regular threads and fancy threads having, for example, flame effects, plugs, buttons, etc.
- the invention also relates to a device for implementing such a method, as well as the new type of yarn produced.
- the method according to the invention is of the type according to which elementary parallel fibers are associated with a textile core, subjected to a false twist, said fibers being projected onto the core upstream of the false twist spindle , characterized in that in the projection zone of the fibers, the core is guided in a channel having an open face arranged opposite the projection zone of the elementary fibers and the surface of which is subjected to a current of fluid which tends to exert a tensile force on the end of the fibers.
- the process according to the invention makes it possible to obtain perfectly regular threads, it can be easily adapted for obtaining fancy threads, by varying, for example, the speed of call of the thread and / or the ascent length of torsion upstream of the spindle and / or the flow of fibers projected onto the core.
- the core is advantageously constituted by a continuous multifilament yarn, it can also be constituted by any other filiform textile element, for example by a spun of fibers with which a multifilament core can optionally be associated.
- Figure 1 illustrates, side view, a working position of a machine allowing the implementation of the method according to the invention, that is to say allowing to produce at high speed, a yarn of fibers having a twist unidirectional.
- This machine comprises, in known manner, a storage area (1) for multifilament yarns (2) coming from spools (3).
- An intermediate deliverer (4) which could possibly be omitted, and which is constituted for example by a continuous shaft extending over the entire length of the machine and on which rollers or strips are supported, makes it possible to bring the wires ( 2) to the actual processing elements grouped together, for example, on a frame (5) arranged opposite the storage area (1).
- an assembly is arranged, designated by the general reference (10) making it possible to project elementary fibers parallelized on the core wire (2).
- the core wire (2) can be constituted by a continuous multifilament wire but other types of core wire could be used for the implementation of the invention. As shown in Figure 1 in dotted lines, it may be considered for use as core yarn a yarn of fibers made directly on the machine, for example by providing a drafting arrangement (18) for a lock of fibers (19). In this case, the deliverer (6) can consist of the last pair of stretching cylinders of said stretching train (18). Of course, such a fibrous core can also be associated with a continuous thread by bringing a multifilament thread (2) upstream of the deliverer (6).
- the breaker (11) is supplied with a wick (17) having a titer of 30,000 decitex (Nm 0.3), based on cotton.
- the draw of the wick (17) in the breaker (11) is set to 300.
- the suction plate (12) disposed opposite the outlet (15) of the breaker (11) has a V-shaped slot, having a depth of 5 mm and an open part of 10 mm in width.
- This plate (12) has a length of 5 cm and has 15 orifices (16) spaced regularly and each having a diameter of 1 mm.
- the vacuum source (13) is adjusted so as to be able to create a suction of the order of 200 mm of water.
- the plate (12) is arranged upstream of the spindle (7) so that the wire (2) comes to tangent with the bottom of the V-shaped slot.
- a yarn of fibers consisting of a core, the elementary filaments of which are practically parallel to each other, said core being covered with a layer of fibers having a true twist.
- Such a thread can be used for all conventional applications, such as weaving, knitting.
- Example 1 is repeated, but the multifilament core (2) is introduced into a wick (19) drawn upstream of the cylinders (6) as shown in dotted lines in FIG. 1.
- the wick (19) is based on wool and has a titer of 3000 decitex (Nm 3), the drawing carried out in (18) being 30 times.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Procédé pour l'obtention d'un filé de fibres du type selon lequel les fibres élémentaires parallélisées sont associées à une âme (2) soumise à une fausse torsion, lesdites fibres étant projetées sur l'âme (2) en amont de la broche de fausse torsion (7). Selon l'invention, dans la zone de projection des fibres, l'âme multifilamentaire (2) est guidée dans un canal (14) présentant une face ouverte située en regard de la zone de projection des fibres élémentaires et dont la surface est soumise à un courant de fluide qui tend à exercer une force de traction sur l'extrémité des fibres.Method for obtaining a yarn of fibers of the type according to which the parallel elementary fibers are associated with a core (2) subjected to a false twist, said fibers being projected onto the core (2) upstream of the spindle false twist (7). According to the invention, in the area of projection of the fibers, the multifilament core (2) is guided in a channel (14) having an open face located opposite the area of projection of the elementary fibers and the surface of which is subjected to a stream of fluid which tends to exert a tensile force on the end of the fibers.
Description
La présente invention a trait à un procédé perfectionné, ainsi qu'à un dispositif pour sa mise en oeuvre, permettant de réaliser de manière simple et économique, à grande vitesse, un nouveau type de filé de fibres possédant une torsion unidirectionnelle sur sa longueur et ce, sans faire appel à des systèmes de renvidage à anneaux et curseurs.The present invention relates to an improved process, as well as to a device for its implementation, making it possible to produce in a simple and economical manner, at high speed, a new type of fiber yarn having a unidirectional twist along its length and without using ring winding systems and sliders.
Depuis très longtemps, on cherche à augmenter les vitesses de production des filés de fibres et ce, tout en conservant les propriétés et les caractéristiques que présentent de tels articles.For a very long time, it has been sought to increase the production speeds of fiber yarns, while retaining the properties and characteristics which such articles have.
Diverses solutions ont été envisagées pour remplacer les techniques conventionnelles de filature faisant appel à des doublages et étirages successifs de mèches de fibres.Various solutions have been envisaged to replace conventional spinning techniques using successive doubling and drawing of wicks of fibers.
Parmi ces techniques, on peut citer le procédé dit de filatures à fibres libérées. Ce procédé bien connu des techniciens, est cependant délicat à mettre en oeuvre et nécessite, en fonction de la nature et/ou de la grosseur et longueur des fibres, des appareillages différents.Among these techniques, there may be mentioned the process known as spinning with released fibers. This process, well known to technicians, is however difficult to implement and requires, depending on the nature and / or the size and length of the fibers, different apparatus.
Il a également été proposé de réaliser des fils ayant l'aspect de filés de fibres par projection de fibres discontinues sur une âme multifilamentaire revêtue d'une matière collante.It has also been proposed to produce yarns having the appearance of yarns of fibers by spraying discontinuous fibers onto a multifilament core coated with an adhesive material.
on a également proposé d'incorporer dans une âme multifilamentaire des fibres discontinues, par exemple en faisant appel à un système de fausse torsion agissant sur le fil d'âme, de telle sorte qu'en amont d'un tel organe de fausse torsion, les filaments soient séparés et ouverts, les fibres étant-incorporées à ce niveau et le fil reprenant sa torsion initiale et par suite emprisonnant les fibres à la sortie de la broche de la fausse torsion. De même, il a été envisagé de provoquer la séparation des fils élémentaires d'une telle âme au moyen de charges électrostatiques.it has also been proposed to incorporate discontinuous fibers into a multifilament core, for example by using a false twist system acting on the core thread, so that upstream of such a false twist member, the filaments are separated and open, the fibers being incorporated at this level and the thread resuming its initial twist and consequently trapping the fibers at the exit of the spindle from the false twist. Likewise, it has been envisaged to cause the separation of the elementary wires of such a core by means of electrostatic charges.
Il convient cependant de noter, qu'en dehors de la filature à fibres libérées, aucune solution proposée à ce jour n'a trouvé d'application véritablement industrielle.It should however be noted that, apart from spinning with free fibers, no solution proposed to date has found any truly industrial application.
Or on a trouvé, et c'est ce qui fait l'objet de l'a présente invention, un procédé perfectionné qui, non seulement permet d'augmenter notablement les vitesses de production par rapport aux techniques de filatures conventionnelles mais qui, par ailleurs, conduit à un filé présentant de très bonnes caractéristiques textiles, filé présentant une torsion unidirectionnelle sur sa longueur.Now we have found, and this is the subject of the present invention, an improved process which, not only makes it possible to significantly increase production speeds compared to conventional spinning techniques but which, moreover, leads to a yarn having very good textile characteristics, yarn having a unidirectional twist along its length.
Par ailleurs, le procédé selon l'invention présente une très grande souplesse par le fait qu'il peut être mis en oeuvre aussi bien pour obtenir des fils réguliers que des fils fantaisie présentant par exemple des effets de flamme, bouchons, boutons...Furthermore, the method according to the invention has great flexibility by the fact that it can be used both for obtaining regular threads and fancy threads having, for example, flame effects, plugs, buttons, etc.
L'invention concerne également un dispositif pour la mise en oeuvre d'un tel procédé, ainsi que le nouveau type de filé réalisé.The invention also relates to a device for implementing such a method, as well as the new type of yarn produced.
D'une manière générale, le procédé selon l'invention est du type selon lequel des fibres élémentaires parallélisées sont associées à une âme textile, soumise à une fausse torsion, lesdites fibres étant projetées sur l'âme en amont de la broche de fausse torsion, caractérisé par le fait que dans la zone de projection des fibres, l'âme est guidée dans un canal présentant une face ouverte disposée en regard de la zone de projection des fibres élémentaires et dont la surface est soumise à un courant de fluide qui tend à exercer une force de traction sur l'extrémité des fibres.In general, the method according to the invention is of the type according to which elementary parallel fibers are associated with a textile core, subjected to a false twist, said fibers being projected onto the core upstream of the false twist spindle , characterized in that in the projection zone of the fibers, the core is guided in a channel having an open face arranged opposite the projection zone of the elementary fibers and the surface of which is subjected to a current of fluid which tends to exert a tensile force on the end of the fibers.
On a constaté qu'un tel procédé permettait d'obtenir un filé dans lequel les fibres non seulement se trouvent parfaitement emprisonnées, maintenues et réparties autour de l'âme mais qui, par ailleurs possèdent une torsion vraie autour de l'âme qui elle, en revanche, est pratiquement exempte de "torsion.It has been found that such a process makes it possible to obtain a yarn in which the fibers are not only perfectly trapped, maintained and distributed around the core but which, moreover, have a true twist around the core which itself, on the other hand, is practically free from "twisting.
Bien que le procédé selon l'invention permette d'obtenir des fils parfaitement réguliers, il peut être facilement adapté pour l'obtention de fils fantaisie, en faisant varier par exemple la vitesse d'appel du fil et/ou la longueur de remontée de torsion en amont de la broche et/ou le débit de fibres projeté sur l'âme.Although the process according to the invention makes it possible to obtain perfectly regular threads, it can be easily adapted for obtaining fancy threads, by varying, for example, the speed of call of the thread and / or the ascent length of torsion upstream of the spindle and / or the flow of fibers projected onto the core.
Par ailleurs, si l'âme est avantageusement constituée par un fil continu multifilamentaire, elle peut également être constituée par tout autre élément textile filiforme, par exemple par un filé de fibres auquel peut être associée éventuellement une âme multifilamentaire.Furthermore, if the core is advantageously constituted by a continuous multifilament yarn, it can also be constituted by any other filiform textile element, for example by a spun of fibers with which a multifilament core can optionally be associated.
Comme moyens permettant la mise en oeuvre du procédé selon l'invention, on utilisera avantageusement :
- - comme broche de fausse torsion, une broche à friction, plus particulièrement une broche du type à courroies croisées, par exemple réalisée conformément aux enseignements de l'US-A- 4 296 598,
- - comme organe permettant de projeter les fibres élémentaires parallélisées sur le fil d'âme, un briseur de type connu, par exemple un briseur conventionnel utilisé pour la filature à fibres libérées ou tout autre moyen équivalent constitué, par exemple, par un train d'étirage conventionnel à cylindres et lanières ou par un dispositif d'étirage de type sélecteur,
- - comme canal de guidage pour le fil d'âme, une plaque présentant une section en forme de V, en acier pard. exemple, le fond de cette plaque étant percée d'orifices et étant soumis à une dépression provoquant un écoulement de fluide exerçant une force de traction sur l'extrémité des fibres.
- - as a false twist spindle, a friction spindle, more particularly a spindle of the cross-belt type, for example produced in accordance with the teachings of US-A-4,296,598,
- - as a member making it possible to project the elementary fibers parallelized onto the core thread, a breaker of known type, for example a conventional breaker used for spinning with free fibers or any other equivalent means constituted, for example, by a train of conventional drawing with cylinders and strips or by a selector type drawing device,
- - as a guide channel for the core wire, a plate having a V-shaped section, made of pard steel. example, the bottom of this plate being pierced with orifices and being subjected to a vacuum causing a flow of fluid exerting a tensile force on the end of the fibers.
Bien entendu, d'autres moyens équivalents tels que par exemple l'utilisation d'une broche de fausse torsion à friction interne, voire même une broche pneumatique, pourraient être utilisés sans sortir du cadre de l'invention. De plus, si l'écoulement de fluide à la surface du canal de guidage peut être obtenu en exerçant une dépression à cette surface, il pourrait être envisagé de créer un tel écoulement au moyen de jets de fluide agissant du côté de la face ouverte du canal de guidage.Of course, other equivalent means such as for example the use of a false torsion spindle with internal friction, or even a pneumatic spindle, could be used without departing from the scope of the invention. In addition, if the flow of fluid on the surface of the guide channel can be obtained by exerting a depression on this surface, it could be envisaged to create such a flow by means of jets of fluid acting on the side of the open face of the guide channel.
L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce aux exemples de réalisation donnés ci-après à titre indicatif mais non limitatif et qui sont illustrés par les schémas annexés dans lesquels :
- - la figure 1 illustre schématiquement, vue de côté, une position de travail d'une machine permettant la mise en oeuvre du procédé selon l'invention,
- - la figure 2 est également une vue schématique en perspective montrant plus en détail un exemple de réalisation de mise en oeuvre du procédé selon l'invention et,
- - la figure 3 est une coupe transversale, vue de dessus, d'un canal de guidage constitué par une plaque aspirante en forme de V, définissant la zone dans laquelle les fibres sont associées à l'âme.
- FIG. 1 schematically illustrates, seen from the side, a working position of a machine enabling the method according to the invention to be implemented,
- - Figure 2 is also a schematic view in perspective showing in more detail an embodiment of implementation of the method according to the invention and,
- - Figure 3 is a cross section, seen from above, of a guide channel formed by a V-shaped suction plate, defining the area in which the fibers are associated with the core.
La figure 1 illustre, vue de côté, une position de travail d'une machine permettant la mise en oeuvre du procédé selon l'invention, c'est-à-dire permettant de réaliser à grande vitesse, un filé de fibres présentant une torsion unidirectionnelle.Figure 1 illustrates, side view, a working position of a machine allowing the implementation of the method according to the invention, that is to say allowing to produce at high speed, a yarn of fibers having a twist unidirectional.
Cette machine comporte, de manière connue, une zone de stockage (1) pour des fils multifilamentaires (2) provenant de bobines (3).This machine comprises, in known manner, a storage area (1) for multifilament yarns (2) coming from spools (3).
Un délivreur intermédiaire (4), qui éventuellement pourrait être supprimé, et qui est constitué par exemple par un arbre continu s'étendant sur toute la longueur de la machine et sur lequel prennent appui des galets ou lanières, permet d'amener les fils (2) aux organes de traitement proprement dits regroupés, par exemple, sur un bâti (5) disposé en regard de la zone de stockage (1).An intermediate deliverer (4), which could possibly be omitted, and which is constituted for example by a continuous shaft extending over the entire length of the machine and on which rollers or strips are supported, makes it possible to bring the wires ( 2) to the actual processing elements grouped together, for example, on a frame (5) arranged opposite the storage area (1).
Ces organes de traitement proprement dits sont constitués, si l'on suit le trajet du fil, de manière connue par :
- - un délivreur (6) avantageusement constitué par un arbre continu s'étendant sur toute la longueur du métier et sur lequel s'appuient des galets presseurs pour chacun des fils (2),
- - une broche de fausse torsion (7) constituée, de préférence, par deux courroies croisées, par exemple du type décrit dans l'US-A-4 296 598,
- - un second délivreur (8) et des moyens de renvidage sans torsion (9).
- a deliverer (6) advantageously constituted by a continuous shaft extending over the entire length of the loom and on which press rollers are supported for each of the wires (2),
- - a false twist spindle (7) formed, preferably, by two crossed belts, eg of the type described in US-A- 4,296,598,
- - a second deliverer (8) and twist-free winding means (9).
Conformément à l'invention, en amont de la broche de fausse torsion (7), est disposé un ensemble, désigné par la référence générale (10) permettant de projeter des fibres élémentaires parallélisées sur le fil d'âme (2).According to the invention, upstream of the false twist spindle (7), an assembly is arranged, designated by the general reference (10) making it possible to project elementary fibers parallelized on the core wire (2).
Cet ensemble (10) comporte :
- - d'une part, un briseur conventionnel (11) par exemple du type de ceux utilisés pour la mise en oeuvre de la technique de filature dite à fibres libérées, une mèche (17) étant introduite dans ce briseur (11),
- - d'autre part, une plaque (12) reliée à une source d'aspiration (13) (non représentée) est disposée en regard de la sortie du briseur (11) ; cette plaque (12) , ainsi que cela ressort clairement des figures 2 et 3, présente une rainure (14), en forme de V, définissant un canal de guidage dont la partie ouverte est située en regard de l'orifice de sortie (15) du briseur,..(11) ; afin de créer un courant de fluide à la surface du canal, le fond de la plaque est percé de canaux (16) sur toute son épaisseur, ces canaux débouchant dans un conduit commun relié à une source d'aspiration.
- - on the one hand, a conventional breaker (11) for example of the type of those used for implementing the spinning technique known as free fibers, a wick (17) being introduced into this breaker (11),
- - on the other hand, a plate (12) connected to a suction source (13) (not shown) is arranged opposite the outlet of the breaker (11); this plate (12), as is clear from FIGS. 2 and 3, has a V-shaped groove (14) defining a guide channel, the open part of which is situated opposite the outlet orifice (15 ) of the breaker, .. (11); in order to create a flow of fluid on the surface of the channel, the bottom of the plate is pierced with channels (16) over its entire thickness, these channels opening into a common conduit connected to a suction source.
Comme dit précédemment, le fil d'âme (2) peut être constitué par un fil continu multifilamentaire mais d'autres types de fil d'âme pourraient être utilisés pour la mise en oeuvre de l'invention. Ainsi que cela est illustré à la figure 1 en pointillés, il pourrait être envisagé d'utiliser comme fil d'âme un filé de fibres, réalisé directement sur la machine, par exemple en prévoyant un train d'étirage (18) pour une mèche de fibres (19). Dans ce cas, le délivreur (6) peut être constitué par la dernière paire de cylindres étireurs dudit train d'étirage (18). Bien entendu, une telle âme fibreuse peut également être associée à un fil continu en amenant un fil multifilamentaire (2) en amont du délivreur (6).As said previously, the core wire (2) can be constituted by a continuous multifilament wire but other types of core wire could be used for the implementation of the invention. As shown in Figure 1 in dotted lines, it may be considered for use as core yarn a yarn of fibers made directly on the machine, for example by providing a drafting arrangement (18) for a lock of fibers (19). In this case, the deliverer (6) can consist of the last pair of stretching cylinders of said stretching train (18). Of course, such a fibrous core can also be associated with a continuous thread by bringing a multifilament thread (2) upstream of the deliverer (6).
Sur une installation du type illustré par les figures annexées, on réalise un filé de fibres conformément à l'invention dans les conditions suivantes :
- - fil d'âme : fil multifilamentaire (2) constitué par un fil polyester 72 décitex - 33 brins,
- - vitesse d'appel des délivreurs (4) et (6) : 100 m/mn,
- - broche de fausse torsion (7) : broche à courroies croisées formant entre elles un angle de 46° et ayant une vitesse linéaire de 250 m/mn,
- - broche de renvidage (5) : du type à entraînement périphérique ; vitesse d'appel : 100 m/mn.
- - core thread: multifilament thread (2) consisting of a 72 decitex polyester thread - 33 strands,
- - call speed of the deliverers (4) and (6): 100 m / min,
- - false twist spindle (7): spindle with crossed belts forming an angle of 46 ° between them and having a linear speed of 250 m / min,
- - winding spindle (5): of the peripheral drive type; call speed: 100 m / min.
On alimente le briseur (11) avec une mèche (17) ayant un titre de 30 000 décitex (Nm 0,3), à base de coton. L'étirage de la mèche (17) dans le briseur (11) est réglé à 300.The breaker (11) is supplied with a wick (17) having a titer of 30,000 decitex (Nm 0.3), based on cotton. The draw of the wick (17) in the breaker (11) is set to 300.
La plaque aspirante (12) disposée en regard de la sortie (15) du briseur (11) présente une fente en forme de V, ayant une profondeur de 5 mm et une partie ouverte de 10 mm de largeur. Cette plaque (12) a une longueur de 5 cm et comporte 15 orifices (16) espacés régulièrement et ayant chacun un diamètre de 1 mm.The suction plate (12) disposed opposite the outlet (15) of the breaker (11) has a V-shaped slot, having a depth of 5 mm and an open part of 10 mm in width. This plate (12) has a length of 5 cm and has 15 orifices (16) spaced regularly and each having a diameter of 1 mm.
La source de dépression (13) est réglée de manière à pouvoir créer une aspiration de l'ordre de 200 mm d'eau.The vacuum source (13) is adjusted so as to be able to create a suction of the order of 200 mm of water.
La plaque (12) est disposée en amont de la broche (7) de telle sorte que le fil (2) vienne tangenter avec le fond de la fente en forme de V.The plate (12) is arranged upstream of the spindle (7) so that the wire (2) comes to tangent with the bottom of the V-shaped slot.
En travaillant dans les conditions précitées, on obtient un filé de fibres constitué d'une âme dont les filaments élémentaires sont pratiquement parallèles entre eux, ladite âme étant recouverte d'une couche de fibres présentant une torsion vraie.By working under the aforementioned conditions, a yarn of fibers is obtained consisting of a core, the elementary filaments of which are practically parallel to each other, said core being covered with a layer of fibers having a true twist.
Un tel fil peut être utilisé pour toutes les applications conventionnelles, tels que tissage, tricotage.Such a thread can be used for all conventional applications, such as weaving, knitting.
On répète l'exemple 1, mais l'âme multifilamentaire (2) est introduite dans une mèche (19) étirée en amont des cylindres (6) tel que cela est représenté en pointillés à la figure 1.Example 1 is repeated, but the multifilament core (2) is introduced into a wick (19) drawn upstream of the cylinders (6) as shown in dotted lines in FIG. 1.
La mèche (19) est à base de laine et a un titre de 3000 décitex (Nm 3), l'étirage réalisé en (18) étant de 30 fois.The wick (19) is based on wool and has a titer of 3000 decitex (Nm 3), the drawing carried out in (18) being 30 times.
En travaillant dans ces conditions, on obtient un filé de fibres dont l'âme est elle-même constituée par un filé à âme, cette âme étant pratiquement sans torsion alors que les fibres périphériques provenant du ruban (17) sont en revanche tordues et parfaitement liées autour de ladite âme.By working under these conditions, a yarn of fibers is obtained, the core of which is itself constituted by a core yarn, this core being practically untwisted, while the peripheral fibers coming from the ribbon (17) are however twisted and perfectly tied around said soul.
Bien entendu, l'invention n'est pas limitée aux exemples de réalisation qui précèdent, mais elle en couvre' toutes les variantes réalisées dans le même esprit.Of course, the invention is not limited to the preceding exemplary embodiments, but it covers' all the variants produced in the same spirit.
Ainsi, il peut être envisagé d'appliguer ce procede en combinaison avec tous les procédés connus permettant de réaliser des fils fantaisie, par exemple en faisant varier la vitesse d'alimentation et/ou la vitesse de renvidage.Thus, it can be envisaged to apply this method in combination with all the known methods making it possible to produce fancy yarns, for example by varying the feeding speed and / or the winding speed.
De même, il pourrait être envisagé de renvider simultanément deux fils réalisés conformément à l'invention sur un même support, en leur communiquant ou non une légère torsion d'assemblage.ou en provoquant leur auto-retordage.Similarly, it could be envisaged to simultaneously return two wires produced in accordance with the invention to the same support, whether or not imparting a slight assembly twist to them, or by causing them to self-twist.
Enfin, si dans l'exemple de réalisation qui précède, l'amenée des fibres sur l'âme est réalisée au moyen d'un briseur, il est évident, comme dit précédemment, que tout autre système équivalent permettant d'étirer une mèche de fibres pourrait être utilisé pour la mise en oeuvre de l'invention, par exemple des systèmes d'étirage à lanières ou des systèmes d'étirage de type sélecteur.Finally, if in the preceding embodiment, the supply of the fibers to the core is carried out by means of a breaker, it is obvious, as said above, that any other equivalent system making it possible to stretch a wick of fibers could be used for the implementation of the invention, for example strip drawing systems or selector type drawing systems.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8201381 | 1982-01-26 | ||
| FR8201381A FR2520390B1 (en) | 1982-01-26 | 1982-01-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0085634A1 true EP0085634A1 (en) | 1983-08-10 |
| EP0085634B1 EP0085634B1 (en) | 1986-04-09 |
Family
ID=9270437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83420008A Expired EP0085634B1 (en) | 1982-01-26 | 1983-01-20 | Method and apparatus to produce a spun yarn |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4492075A (en) |
| EP (1) | EP0085634B1 (en) |
| JP (1) | JPS58117774U (en) |
| DE (1) | DE3362845D1 (en) |
| FR (1) | FR2520390B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0188220A3 (en) * | 1985-01-17 | 1990-01-17 | Heberlein Hispano S.A. | Apparatus for making a core yarn |
| WO1993022994A1 (en) * | 1992-05-09 | 1993-11-25 | Smith & Nephew Plc | Crepe effect bandage |
| WO1995013038A1 (en) * | 1993-11-10 | 1995-05-18 | Smith & Nephew Plc | Crepe effect bandage |
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| US5392588A (en) * | 1982-06-07 | 1995-02-28 | Burlington Industries, Inc. | Spinning with hollow rotatable shaft and air flow |
| US5103626A (en) * | 1984-12-03 | 1992-04-14 | Burlington Industries, Inc. | Fasciated yarn structure made by vacuum spinning |
| JPS62117830A (en) * | 1985-11-15 | 1987-05-29 | Murata Mach Ltd | Apparatus for production of spun yarn |
| JPS63264922A (en) * | 1987-04-16 | 1988-11-01 | Murata Mach Ltd | Belt false twister |
| US8795332B2 (en) * | 2002-09-30 | 2014-08-05 | Ethicon, Inc. | Barbed sutures |
| US6241747B1 (en) * | 1993-05-03 | 2001-06-05 | Quill Medical, Inc. | Barbed Bodily tissue connector |
| US5931855A (en) | 1997-05-21 | 1999-08-03 | Frank Hoffman | Surgical methods using one-way suture |
| US7056331B2 (en) * | 2001-06-29 | 2006-06-06 | Quill Medical, Inc. | Suture method |
| US6848152B2 (en) | 2001-08-31 | 2005-02-01 | Quill Medical, Inc. | Method of forming barbs on a suture and apparatus for performing same |
| US6773450B2 (en) | 2002-08-09 | 2004-08-10 | Quill Medical, Inc. | Suture anchor and method |
| US8100940B2 (en) | 2002-09-30 | 2012-01-24 | Quill Medical, Inc. | Barb configurations for barbed sutures |
| US20040088003A1 (en) | 2002-09-30 | 2004-05-06 | Leung Jeffrey C. | Barbed suture in combination with surgical needle |
| US7624487B2 (en) * | 2003-05-13 | 2009-12-01 | Quill Medical, Inc. | Apparatus and method for forming barbs on a suture |
| CA2566438C (en) * | 2004-05-14 | 2014-12-09 | Angiotech Pharmaceuticals, Inc. | Suture methods and devices |
| US8915943B2 (en) * | 2007-04-13 | 2014-12-23 | Ethicon, Inc. | Self-retaining systems for surgical procedures |
| US8777987B2 (en) | 2007-09-27 | 2014-07-15 | Ethicon, Inc. | Self-retaining sutures including tissue retainers having improved strength |
| US20090112259A1 (en) * | 2007-10-31 | 2009-04-30 | Angiotech Pharmaceuticals, Inc. | Recombinant expressed bioadsorbable polyhydroxyalkonate monofilament and multi-filaments self-retaining sutures |
| US20090143819A1 (en) * | 2007-10-31 | 2009-06-04 | D Agostino William L | Coatings for modifying monofilament and multi-filaments self-retaining sutures |
| US8916077B1 (en) | 2007-12-19 | 2014-12-23 | Ethicon, Inc. | Self-retaining sutures with retainers formed from molten material |
| CA2709328C (en) * | 2007-12-19 | 2017-01-03 | Angiotech Pharmaceuticals, Inc. | Self-retaining sutures with heat-contact mediated retainers |
| US8118834B1 (en) | 2007-12-20 | 2012-02-21 | Angiotech Pharmaceuticals, Inc. | Composite self-retaining sutures and method |
| EP2242430B1 (en) * | 2008-01-30 | 2016-08-17 | Ethicon, LLC | Apparatus and method for forming self-retaining sutures |
| US8615856B1 (en) | 2008-01-30 | 2013-12-31 | Ethicon, Inc. | Apparatus and method for forming self-retaining sutures |
| BRPI0907787B8 (en) * | 2008-02-21 | 2021-06-22 | Angiotech Pharm Inc | method for forming a self-retaining suture and apparatus for raising the retainers in a suture to a desired angle |
| US8216273B1 (en) | 2008-02-25 | 2012-07-10 | Ethicon, Inc. | Self-retainers with supporting structures on a suture |
| US8641732B1 (en) | 2008-02-26 | 2014-02-04 | Ethicon, Inc. | Self-retaining suture with variable dimension filament and method |
| US20090228021A1 (en) * | 2008-03-06 | 2009-09-10 | Leung Jeffrey C | Matrix material |
| CN103083050B (en) | 2008-04-15 | 2015-08-05 | 伊西康有限责任公司 | There is the self-sustaining stitching thread of two-way keeper or unidirectional keeper |
| US8961560B2 (en) | 2008-05-16 | 2015-02-24 | Ethicon, Inc. | Bidirectional self-retaining sutures with laser-marked and/or non-laser marked indicia and methods |
| US8932328B2 (en) | 2008-11-03 | 2015-01-13 | Ethicon, Inc. | Length of self-retaining suture and method and device for using the same |
| US20100153335A1 (en) * | 2008-12-12 | 2010-06-17 | Microsoft Corporation | Synchronizing multiple classes with disparate schemas in the same collection |
| MX2012012756A (en) | 2010-05-04 | 2013-05-09 | Ethicon Llc | Self-retaining systems having laser-cut retainers. |
| EP3155978B1 (en) | 2010-06-11 | 2022-04-13 | Cilag GmbH International | Suture delivery tools for endoscopic and robot-assisted surgery |
| CN103747746B (en) | 2010-11-03 | 2017-05-10 | 伊西康有限责任公司 | Drug-eluting self-retaining sutures and related methods |
| JP6013352B2 (en) | 2010-11-09 | 2016-10-25 | エシコン・エルエルシーＥｔｈｉｃｏｎ ＬＬＣ | Emergency indwelling suture and package |
| DE102011116936A1 (en) * | 2010-11-29 | 2012-05-31 | Amann & Söhne GmbH & Co. KG | Yarn, in particular sewing or embroidery thread and method for producing such a yarn |
| US10492780B2 (en) | 2011-03-23 | 2019-12-03 | Ethicon, Inc. | Self-retaining variable loop sutures |
| US20130172931A1 (en) | 2011-06-06 | 2013-07-04 | Jeffrey M. Gross | Methods and devices for soft palate tissue elevation procedures |
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| US3439491A (en) * | 1965-08-09 | 1969-04-22 | Monsanto Co | Process for making core spun yarns |
| DE2065441A1 (en) * | 1970-08-26 | 1973-08-23 | Schubert & Salzer Maschinen | Staple fibre yarn prodn - by positively drawing a fibre roving twisting and winding onto a bobbin |
| FR2265884A1 (en) * | 1974-03-29 | 1975-10-24 | Umiastowski John |
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| US4209965A (en) * | 1976-12-21 | 1980-07-01 | Bobkowicz E | Universal spinning system |
| GB2029462B (en) * | 1978-08-31 | 1983-01-19 | Oda Gosen Kogyo Kk | False-twisting system for the production of composite crimped yarn |
| CH615554B (en) * | 1978-09-05 | Heberlein Hispano Sa | METHOD OF MANUFACTURING A CORE COAT YARN | |
| US4359856A (en) * | 1979-10-04 | 1982-11-23 | Bobkowicz E | Process for forming a yarn using a partially oriented carrier filament |
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1982
- 1982-01-26 FR FR8201381A patent/FR2520390B1/fr not_active Expired
-
1983
- 1983-01-17 US US06/458,701 patent/US4492075A/en not_active Expired - Fee Related
- 1983-01-20 DE DE8383420008T patent/DE3362845D1/en not_active Expired
- 1983-01-20 EP EP83420008A patent/EP0085634B1/en not_active Expired
- 1983-01-26 JP JP1983009780U patent/JPS58117774U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3439491A (en) * | 1965-08-09 | 1969-04-22 | Monsanto Co | Process for making core spun yarns |
| DE2065441A1 (en) * | 1970-08-26 | 1973-08-23 | Schubert & Salzer Maschinen | Staple fibre yarn prodn - by positively drawing a fibre roving twisting and winding onto a bobbin |
| FR2265884A1 (en) * | 1974-03-29 | 1975-10-24 | Umiastowski John |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0188220A3 (en) * | 1985-01-17 | 1990-01-17 | Heberlein Hispano S.A. | Apparatus for making a core yarn |
| WO1993022994A1 (en) * | 1992-05-09 | 1993-11-25 | Smith & Nephew Plc | Crepe effect bandage |
| GB2281315A (en) * | 1992-05-09 | 1995-03-01 | Smith & Nephew | Crepe effect bandage |
| GB2281315B (en) * | 1992-05-09 | 1996-03-06 | Smith & Nephew | Crepe effect bandage |
| AU671831B2 (en) * | 1992-05-09 | 1996-09-12 | Bsn Medical, Inc. | Crepe effect bandage |
| WO1995013038A1 (en) * | 1993-11-10 | 1995-05-18 | Smith & Nephew Plc | Crepe effect bandage |
| US5647842A (en) * | 1993-11-10 | 1997-07-15 | Smith & Nephew Plc | Crepe effect bandage |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2520390A1 (en) | 1983-07-29 |
| FR2520390B1 (en) | 1984-05-25 |
| JPS58117774U (en) | 1983-08-11 |
| DE3362845D1 (en) | 1986-05-15 |
| US4492075A (en) | 1985-01-08 |
| EP0085634B1 (en) | 1986-04-09 |
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