EP1194627B1 - Method and device for orienting individual fibres and/or filaments present in a web - Google Patents
Method and device for orienting individual fibres and/or filaments present in a web Download PDFInfo
- Publication number
- EP1194627B1 EP1194627B1 EP00945929A EP00945929A EP1194627B1 EP 1194627 B1 EP1194627 B1 EP 1194627B1 EP 00945929 A EP00945929 A EP 00945929A EP 00945929 A EP00945929 A EP 00945929A EP 1194627 B1 EP1194627 B1 EP 1194627B1
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- Prior art keywords
- looping
- filaments
- elements
- discs
- fibres
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H11/00—Non-woven pile fabrics
- D04H11/08—Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B39/00—Knitting processes, apparatus or machines not otherwise provided for
Definitions
- the present invention relates to a an improved method and device orientation of individual fibers and / or filaments present in a veil, in particular from a card.
- Sails are usually prepared to be worked to obtain tuffetés products, mesh, knitted or other, by carding followed by stretching in a direction orthogonal to the exit of the card. We usually observes that the average angle of orientation of fibers in a veil exiting the card is about ⁇ 5 degrees to the direction of advance.
- Another possibility is to propose to make a passage in a crosslapper in order to to make a sheet comprising several folds, as example described in EP-A-0520911.
- this topping step is performed before passing through a stretcher.
- the Applicant has developed a particular technique called “technique of verticalization” that allows the realization of products textiles from a web of fibers and / or filaments individual.
- This technique has already been the subject of numerous publications since 1991, and has been described in particularly in WO91 / 00382, WO96 / 10667, WO97 / 05315 and WO98 / 36119. It consists in proposing the production of a textile product directly from fibers and / or filaments flowing in the direction of advance in the form of a veil, this method comprising at least a step called “loopback step” in which the fibers and / or filaments individually looping transversally to the direction advance of the veil, possibly accompanied by stretching transverse.
- the web of fibers and / or starting filaments has a low weight per unit area (preferably between 10 and 50 g / m 2 ).
- the majority of the elements constituting the web that is to say the fibers and / or filaments, have an orientation angle with respect to the direction of advance of the web between 5 and 45 degrees, and preferably between 15 and 25 degrees.
- a pre-stretching step has been provided that the constituent elements of the veil (the fibers and / or filaments) have the right entry angle before undergoing the so-called verticalization stage which consists of to be printed individually on the constituent elements of veil cross-looping accompanied by stretching and followed by an accumulation of said fibers and / or filaments particularly well parallelized in the form of loops in to constitute a pseudo-thread.
- the pre-stretch stage consists of to pass a veil of low density in a game of interpenetrating discs that force the veil, possibly from the card, to undergo a closure on a width greater than that of the product to be produced. We then let the fibers recover by resilience a flat position they get by extension in the sense of width, allowing the fibers to rotate towards a new orientation.
- this pre-stretching step involves submitting the veil to a set of disks spaced a distance j (gauge) arranged on two trees.
- the discs of the two trees are positioned in staggered relation to each other and interpenetrate over a distance d which makes it possible to define the amplitude of the loop and therefore the draw value, let e ⁇ 2 j / d and therefore define ⁇ .
- the present invention aims first of all at propose a solution that allows to modify the width of the sail, possibly from the card.
- the present invention aims to propose a veil that will undergo the process of verticalization and in which the fibers and / or filaments individuals have the appropriate orientation.
- the present invention also aims to allow, in addition to adequate orientation of the fibers at within said web, an isotropic orientation of said fibers.
- the present invention aims at complementary to allow the realization of a veil with condensation of fibers, particularly in the case of a preparation of a dense product.
- said curler elements of the device are looper fingers.
- said locking elements consist of fingers looper longer than other looper fingers and present every 2 to 20 consecutive looping fingers.
- these blocking elements are made up of another set of detacher disks mounted on a transverse common axis and driven in continuous rotation at a corresponding speed at the speed of rotation of the loop disks.
- the detacher disks are arranged in the extension of some of the curling fingers.
- the spreading mat is consisting of a set of individual belts arranged in a diverging manner, and preferably the many of these individual belts match essentially the number of blocking elements.
- the blocking elements penetrate slightly between the different belts individual.
- mechanical means are provided for slightly varying speeds longitudinal straps so the speed in any transverse point of the veil equivalent for all belts.
- the device for the invention further comprises condensation means fibers and / or filaments arranged upstream of the first set of looping disks and the first set of looping elements fixed.
- These means of condensation of the fibers are preferably constituted by a second set of discs looper worn on a second common transverse axis and driven in continuous rotation at a speed and between which are arranged fixed looping elements forming a second set of looping elements.
- the second game of Looper disks and the second set of Looper elements the same gauge as the first set of Looper disks and the first set of Looper elements fixed, and the speed of rotation of the second set of discs looper is greater than the first set of disks loopers.
- FIG. 1 represents a sectional view of device according to a first embodiment allowing the implementation of the method according to the present invention.
- Figure 2 shows a view from above of the device as shown in Figure 1.
- Figure 3 shows a view from above of the device as shown in FIG. which fibers and / or filaments which have been undergone pre-whetting steps.
- Figure 4 shows a view from above spreading carpet for drawing the fibers and / or filaments and present in the devices shown in Figures 1, 2 and 3.
- Figure 5 shows a sectional view device according to a second embodiment allowing the implementation of the method according to the present invention.
- Figure 6 shows views from above of the device as shown in FIG. which fibers and / or filaments which have been undergone pre-whetting steps.
- Figure 7 shows a sectional view of a particular device allowing the implementation advantage of the method according to the present invention, intended to the production of so-called condensed products.
- Figure 8 shows a complete device which allows the realization of a specific product based on ribbons allowing the realization of a product of type topped laminated.
- the principle underlying this The invention therefore aims to prepare the fiber web and / or filaments, and more particularly to adjust the angle said individual fibers and / or filaments of the veil will be subjected to the stretch-looping stage such as described in detail in the various publications earlier.
- process described herein invention can also be used for the constitution of sails intended for conventional needling techniques, calendering, chemical consolidation or consolidation ultrasound as described extensively in the state of art.
- the process on which the present invention is based may make it possible to produce sails with a weight ranging from the conventional range of 10 to 50 g / m 2 up to values of 100 to 300 g / m 2 , and this without difficulties.
- the present invention proposes to achieve an adequate orientation of the elements constituents of the veil by pre-coupling thanks to a set of curler discs arranged on a first tree and driven in rotation at a continuous speed, which cooperate with curly fingers that are fixed and whose profile allows the commitment and then the training of the material.
- this precoupling retains by means of blocking the constituent elements of the veil that are the fibers and / or filaments on a regular basis and the expansion of these fibers and / or pre-beaded filaments of to obtain fibers and / or filaments with larger ripples. We then spread these large undulations.
- Figures 1 and 2 show views in cut and from above a first embodiment of a device for implementing the method of prebouqueting according to the present invention allowing the orientation of the individual fibers and / or filaments. present in a veil.
- This device includes a first set of disks 11 loops arranged according to a gauge j on a first transverse common shaft 10 and between which are arranged curling fingers 12 constituting a first game of looper elements.
- the curlers 11 are rotated at continuous speed and constant preference while curly fingers 12 are fixed.
- Figure 3 describes three successive fibers f1, f2 and f3 driven by the device according to this first form of execution. We clearly observe different successive stages to which these three fibers f1, f2 and f3 at different times in the progression of the veil in the device.
- fibers such as fibers f2 will be removed from looper discs 11 by the fibers arranged downstream and to be able to expand fully while being maintained in the limits of long looper fingers serving as means as shown for fibers f3.
- n is the frequency at which long looping fingers 15 are arranged between the short looping fingers 12.
- n is therefore an integer between 2 and 20.
- the gauge j that is to say the distance between two looper disks 11 or two short looper fingers 12 consecutive, is preferably weak, that is to say between 2 and 15 mm, and more particularly between 5 and 10 mm. This ensures a more even stretching. Starting from a relatively low tonnage allowed to stretch the veil very evenly and homogeneous, which would not have been possible if we had used as a loop gauge the gauge corresponding to the long looping fingers 15, the gauge (n x j).
- n x j Large period ripples (n x j) are conveyed to the spreading carpet 100 which presents itself in the form of several straps or belts 101,102,103, ... of any section, and which allow collect the fibers by gravity or even through a slight suction, at the exit of the longest fingers 15.
- Such straps or belts 101,102,103, ... are arranged in a divergent manner, as shown in Figure 4, and so flares in the plane of the veil and thus allow to accompany the undulations while controlling their flattening.
- the long curly fingers 15 extend between straps or thongs 101 102 103 ...
- the number of looper fingers long 15 is equivalent to the number of strips.
- Proposing a spreading mat is presenting in the form of belts advantageously allows to completely flatten the veil and thus to widen it.
- appropriate mechanical means should be allowing the longitudinal component (ie in the direction of advance of the belt) of each belt be slightly different, so that the speed in advance at each transversal point of the veil either equivalent.
- the method according to the present invention can be with the device described in FIGS. 5 and 6.
- device comprises on the one hand a first set of discs loopers 11 carried on a first common transverse axis 10 and driven in continuous rotation at a first speed V1, between which are arranged a set of curly fingers short 12.
- This first set of discs 11 and this set of fingers loopers 12 have a gauge j.
- Downstream of this game of 11 looper disks and in the extension of some looper fingers 12 is arranged another set of records 25 also carried on a transverse common axis 20 parallel to the first axis 10.
- This other 25 disc game is called a game of "detaching disks" and has a gauge (n x j) where n is an integer between 2 and 20. Indeed, we have disposed a detacher disc 25 at regular intervals in the extension of some of the curly fingers 12 all the (n x j) curling fingers 12.
- the detacher discs 25 are also driven in continuous rotation at an equivalent speed V2 at the speed V1 of the first disks 11 and this in the same way.
- the discs 25 rotating in the same direction as the looping discs 11 will undo the ripples of the first set of records looper 11 and lead them positively to the carpet spreader 100 which is composed of several belts 101,102,103, ... slightly divergent, as shown in Figure 4.
- the detaching discs 25 penetrate slightly between the belts 101, 102, 103 ...
- the big waves are simply smoothed by the diverging belts at the same time as the sail finds its new breadth.
- the number of detachers corresponds to the number of belts.
- Figure 7 shows a variant of the device described in Figure 5 and which allows to achieve condensation of fibers and / or filaments with a view to make a thicker mattress.
- such device makes it possible to obtain a condensation rate which can reach 500% while conventional devices reach values of the order of 80%.
- the device comprises, upstream of the first set of 11 looping disks worn on a first common transverse axis 10, driven in rotation continues at a speed V1, and between which are arranged looper fingers 12 forming a first set of elements Looper 12, a second set of Looper Disks 51 on a second transverse common axis 50, driven in continuous rotation at a speed V5, and between which fixed looper elements 52 which form a second set of looping elements.
- the V5 drive speed of the second set of Looper disks 51 is greater than speed V1 training of the first set of disks 11. This allows to "condense” the fibers and therefore the accumulate before they are driven by the whole looping discs 11 / looping fingers 12.
- a mattress of any weight up to values of 300 g / m 2 can be produced which can be used in calendering, glazing, chemical consolidation, ultrasonic consolidation, etc.
- condensation shown in Figure 7 could also to be used with the first preferred embodiment of the invention described above, that is to say that using long looping fingers 15 as blocking elements.
- FIG. 8 a device allowing the realization of a particular example of a product of "type glued-bonded" obtained from six ribbons of 25 kTex which make it possible to directly generate a fiber veil of 23 g / m 2 over a width of 1.80 m. This veil will then be directly subjected to the device as described in the previous applications and called “verticalization” device.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
La présente invention est relative à un procédé et un dispositif perfectionnés permettant l'orientation de fibres et/ou filaments individuels présents dans un voile, en particulier issu d'une carde.The present invention relates to a an improved method and device orientation of individual fibers and / or filaments present in a veil, in particular from a card.
On prépare habituellement les voiles destinés à être travaillés pour obtenir des produits tuffetés, maillés, tricotés ou autres, par cardage suivi d'un étirage selon une direction orthogonale à la sortie de la carde. On observe habituellement que l'angle moyen d'orientation des fibres dans un voile sortant de la carde est d'environ ± 5 degrés par rapport à la direction d'avance.Sails are usually prepared to be worked to obtain tuffetés products, mesh, knitted or other, by carding followed by stretching in a direction orthogonal to the exit of the card. We usually observes that the average angle of orientation of fibers in a veil exiting the card is about ± 5 degrees to the direction of advance.
Pour modifier la valeur de l'angle, on
pourrait proposer d'étirer ledit voile. Dans ce cas, la
valeur de l'angle après étirage correspondant à la nouvelle
orientation α, qui est définie orthogonalement par rapport
à la direction d'avance du voile, est donnée par :
Une autre possibilité consiste à proposer d'effectuer un passage dans un étaleur-nappeur en vue de réaliser une nappe comprenant plusieurs plis, comme par exemple décrit dans le document EP-A-0520911. De préférence, cette étape de nappage est effectuée préalablement au passage dans un étireur.Another possibility is to propose to make a passage in a crosslapper in order to to make a sheet comprising several folds, as example described in EP-A-0520911. Of preferably, this topping step is performed before passing through a stretcher.
D'autre part, la Demanderesse a mis au point une technique particulière appelée "technique de verticalisation" qui permet la réalisation de produits textiles au départ d'un voile de fibres et/ou de filaments individuels. Cette technique a déjà fait l'objet de nombreuses publications depuis 1991, et a été décrite en particulier dans les documents WO91/00382, WO96/10667, WO97/05315 et WO98/36119. Elle consiste à proposer la réalisation d'un produit textile directement au départ de fibres et/ou filaments circulant dans la direction d'avance sous la forme d'un voile, ce procédé comprenant au moins une étape appelée "étape de bouclage" dans laquelle les fibres et/ou filaments subissent individuellement un bouclage transversalement par rapport à la direction d'avance du voile, éventuellement accompagné d'un étirage transversal.On the other hand, the Applicant has developed a particular technique called "technique of verticalization "that allows the realization of products textiles from a web of fibers and / or filaments individual. This technique has already been the subject of numerous publications since 1991, and has been described in particularly in WO91 / 00382, WO96 / 10667, WO97 / 05315 and WO98 / 36119. It consists in proposing the production of a textile product directly from fibers and / or filaments flowing in the direction of advance in the form of a veil, this method comprising at least a step called "loopback step" in which the fibers and / or filaments individually looping transversally to the direction advance of the veil, possibly accompanied by stretching transverse.
Cette technique permet la réalisation de produits textiles destinés à la réalisation de revêtements de sol se présentant sous la forme de tuft comme décrit dans le document WO91/00382, la réalisation de produits maillés comme décrit dans le document WO96/10667 ou la réalisation de produits nappés comme décrit dans le document WO98/36119.This technique allows the realization of textile products intended for the production of coatings of soil in the form of tuft as described in WO91 / 00382, the production of products mesh as described in WO96 / 10667 or the production of coated products as described in WO98 / 36119.
Néanmoins, pour faire fonctionner cette technique de verticalisation, il est important que le voile de fibres et/ou filaments de départ présente un faible poids par unité de surface (de préférence compris entre 10 et 50 g/m2). D'autre part, il est nécessaire que la majorité des éléments constitutifs du voile, c'est-à-dire les fibres et/ou filaments, présentent un angle d'orientation par rapport à la direction d'avance du voile compris entre 5 et 45 degrés, et de préférence entre 15 et 25 degrés. Nevertheless, to operate this verticalization technique, it is important that the web of fibers and / or starting filaments has a low weight per unit area (preferably between 10 and 50 g / m 2 ). On the other hand, it is necessary that the majority of the elements constituting the web, that is to say the fibers and / or filaments, have an orientation angle with respect to the direction of advance of the web between 5 and 45 degrees, and preferably between 15 and 25 degrees.
Dans ce but, et en particulier dans le document WO91/00382, une étape de pré-étirement a été prévue afin que les éléments constitutifs du voile (les fibres et/ou filaments) présentent le bon angle d'entrée avant de subir l'étape dite de verticalisation qui consiste à imprimer individuellement aux éléments constitutifs du voile un bouclage transversal accompagné d'un étirage et suivi d'une accumulation desdits fibres et/ou filaments particulièrement bien parallélisés sous forme de boucles en vue de constituer un pseudo-fil.For this purpose, and in particular in the WO91 / 00382, a pre-stretching step has been provided that the constituent elements of the veil (the fibers and / or filaments) have the right entry angle before undergoing the so-called verticalization stage which consists of to be printed individually on the constituent elements of veil cross-looping accompanied by stretching and followed by an accumulation of said fibers and / or filaments particularly well parallelized in the form of loops in to constitute a pseudo-thread.
L'étape de pré-étirage consiste à faire passer un voile de faible densité surfacique dans un jeu de disques interpénétrants qui obligent le voile, éventuellement issu de la carde, à subir un bouclage sur une largeur supérieure à celle du produit à réaliser. On laisse ensuite les fibres retrouver par résilience une position plane qu'elles obtiennent par extension dans le sens de la largeur, en permettant aux fibres de pivoter vers une nouvelle orientation.The pre-stretch stage consists of to pass a veil of low density in a game of interpenetrating discs that force the veil, possibly from the card, to undergo a closure on a width greater than that of the product to be produced. We then let the fibers recover by resilience a flat position they get by extension in the sense of width, allowing the fibers to rotate towards a new orientation.
Ainsi que décrit dans le document WO91/00382, cette étape de pré-étirement consiste à soumettre le voile à un ensemble de disques espacés d'une distance j (jauge) disposés sur deux arbres. Les disques des deux arbres sont positionnés en quinconce les uns par rapport aux autres et s'interpénètrent sur une distance d qui permet de définir l'amplitude du bouclage et donc la valeur d'étirage, soit e ≅ 2 j/d et donc de définir α.As described in WO91 / 00382, this pre-stretching step involves submitting the veil to a set of disks spaced a distance j (gauge) arranged on two trees. The discs of the two trees are positioned in staggered relation to each other and interpenetrate over a distance d which makes it possible to define the amplitude of the loop and therefore the draw value, let e ≅ 2 j / d and therefore define α.
Le dispositif décrit dans l'art antérieur a fait ses preuves et prouvé son efficacité dans un contexte industriel. Néanmoins, un certain nombre d'inconvénients subsistent, en particulier :
- Dans le cas d'une valeur élevée de e : dans ce cas, la résilience des fibres atteint sa limite. Au-delà de e=2, les ondulations ont tendance à se transformer en plis et à persister dans le voile étiré en créant ainsi des irrégularités.
- Dans le cas de largeurs de travail importantes : pour des largeurs supérieures à 4 mètres, une ondulation générée au centre du voile ne peut se "détendre" qu'en poussant ses voisines. Dans ce cas, la résilience intrinsèque des fibres contenues dans une seule ondulation sera insuffisante pour pousser toute la largeur du voile. Elle dépend en outre fortement du type et de la nature des fibres utilisées.
- Dans le cas où l'on désire obtenir une valeur de e modulable sur la largeur du voile, ce qui peut s'avérer très utile dans le cas où l'on désire corriger les courbes de poids du voile : en effet, le voile a tendance à être légèrement plus lourd au centre que sur les côtés.
- Dans le cas où l'on désire générer des voiles en partant d'éléments de très faible largeur tels que des rubans, des filaments ou câbles.
- In the case of a high value of e: in this case, the resilience of the fibers reaches its limit. Beyond e = 2, the undulations tend to turn into folds and persist in the stretched veil thereby creating irregularities.
- In the case of large working widths: for widths greater than 4 meters, a ripple generated in the center of the veil can only "relax" by pushing its neighbors. In this case, the intrinsic resilience of the fibers contained in a single corrugation will be insufficient to push the full width of the web. It also depends strongly on the type and nature of the fibers used.
- In the case where it is desired to obtain a value of e that can be modulated over the width of the veil, which can prove very useful in the case where it is desired to correct the weight curves of the veil: indeed, the veil has tend to be slightly heavier in the center than on the sides.
- In the case where it is desired to generate sails starting from elements of very small width such as ribbons, filaments or cables.
La présente invention vise tout d'abord à proposer une solution qui permet de modifier la largeur du voile, éventuellement issu de la carde.The present invention aims first of all at propose a solution that allows to modify the width of the sail, possibly from the card.
Plus particulièrement, la présente invention vise à proposer un voile qui va subir le procédé de verticalisation et dans lequel les fibres et/ou filaments individuels présentent l'orientation adéquate.More particularly, the present invention aims to propose a veil that will undergo the process of verticalization and in which the fibers and / or filaments individuals have the appropriate orientation.
La présente invention vise également à permettre, outre une orientation adéquate des fibres au sein dudit voile, une orientation isotrope desdites fibres.The present invention also aims to allow, in addition to adequate orientation of the fibers at within said web, an isotropic orientation of said fibers.
Enfin, la présente invention vise à titre complémentaire à permettre la réalisation d'un voile présentant une condensation des fibres, en particulier dans le cas d'une préparation d'un produit dense. Finally, the present invention aims at complementary to allow the realization of a veil with condensation of fibers, particularly in the case of a preparation of a dense product.
La présente invention se rapporte à un procédé permettant d'obtenir une orientation adéquate d'éléments constitutifs d'un voile, tels que des fibres et/ou filaments, par exemple issu d'une carde, caractérisé en ce que :
- l'on fait subir aux fibres et/ou filaments une étape de prébouclage effectuée grâce à l'interpénétration d'un premier jeu de disques boucleurs portés sur un axe commun transversal et entraínés en rotation continue à une première vitesse, et d'un premier jeu d'éléments boucleurs fixes, le jeu de disques boucleurs et le jeu d'éléments boucleurs présentant une jauge j définie de manière à préboucler les fibres et/ou filaments avec une valeur d'ondulation ou période j,
- l'on retient à l'aide de moyens de blocage lesdits fibres et/ou filaments à intervalles réguliers d'une longueur de (n x j) où n est un entier compris entre 2 et 20,
- l'on permet l'expansion des fibres et/ou filaments prébouclés de manière à réaliser de grandes ondulations présentant une valeur d'ondulation ou période (n x j), et
- l'on étale par un simple étirage transversal les fibres et/ou filaments prébouclés sur une valeur d'ondulation ou période (n x j).
- the fibers and / or filaments are subjected to a precoupling step performed by the interpenetration of a first set of looper disks borne on a transverse common axis and driven in continuous rotation at a first speed, and a first set of fixed looping elements, the set of looping discs and the set of looping elements having a gauge j defined so as to pre-buckle the fibers and / or filaments with a ripple value or period j,
- the said fibers and / or filaments are retained at regular intervals of a length of (nxj) where n is an integer between 2 and 20,
- the preboubled fibers and / or filaments are expanded so as to produce large corrugations having a ripple value or period (nxj), and
- the fibers and / or filaments pre-bent on a ripple value or period (n × j) are spread by a simple transverse stretching.
La présente invention se rapporte également au dispositif destiné à la mise en oeuvre de ce procédé, caractérisé en ce qu'il comprend :
- un premier jeu de disques boucleurs portés sur un axe commun transversal et entraínés en rotation continue à une première vitesse,
- un premier jeu d'éléments boucleurs fixes, le jeu de disques boucleurs et le jeu d'éléments boucleurs présentant une jauge définie (j) en vue de préboucler les fibres et/ou filaments avec une valeur d'ondulation ou période (j),
- des éléments de blocage disposés régulièrement avec une jauge (n x j) où n est un entier compris entre 2 et 20 et destinés à bloquer les fibres et/ou filaments prébouclés sur une valeur d'ondulation ou période (j) à intervalles réguliers d'une longueur (n x j), et
- un tapis étaleur permettant la mise à plat des fibres et/ou filaments.
- a first set of looper disks mounted on a transverse common axis and driven in continuous rotation at a first speed,
- a first set of fixed looping elements, the set of looping discs and the set of looping elements having a defined gauge (j) for pre-sealing the fibers and / or filaments with a ripple value or period (j),
- blocking elements arranged regularly with a gauge (nxj) where n is an integer between 2 and 20 and intended to block the pre-bent fibers and / or filaments on a ripple value or period (j) at regular intervals of a length (nxj), and
- a spreading mat for flattening fibers and / or filaments.
De préférence, lesdits éléments boucleurs du dispositif sont des doigts boucleurs.Preferably, said curler elements of the device are looper fingers.
Selon une première forme d'exécution, lesdits éléments de blocage sont constitués par des doigts boucleurs plus longs que les autres doigts boucleurs et présents tous les 2 à 20 doigts boucleurs consécutifs.According to a first embodiment, said locking elements consist of fingers looper longer than other looper fingers and present every 2 to 20 consecutive looping fingers.
Selon une deuxième forme d'exécution, ces éléments de blocage sont constitués par un autre jeu de disques détacheurs portés sur un axe commun transversal et entraínés en rotation continue à une vitesse correspondant à la vitesse de rotation des disques boucleurs.According to a second embodiment, these blocking elements are made up of another set of detacher disks mounted on a transverse common axis and driven in continuous rotation at a corresponding speed at the speed of rotation of the loop disks.
Avantageusement, dans cette forme d'exécution, les disques détacheurs sont disposés dans le prolongement de certains des doigts boucleurs.Advantageously, in this form execution, the detacher disks are arranged in the extension of some of the curling fingers.
De manière avantageuse, le tapis étaleur est constitué par un ensemble de courroies individuelles disposées de manière divergente, et de préférence, le nombre de ces courroies individuelles correspond essentiellement au nombre d'éléments de blocage.Advantageously, the spreading mat is consisting of a set of individual belts arranged in a diverging manner, and preferably the many of these individual belts match essentially the number of blocking elements.
Avantageusement, les éléments de blocage pénètrent légèrement entre les différentes courroies individuelles.Advantageously, the blocking elements penetrate slightly between the different belts individual.
De préférence, des moyens mécaniques sont prévus pour faire varier légèrement les vitesses longitudinales des courroies de sorte que la vitesse d'avance en tout point transversal du voile soit équivalente pour toutes les courroies.Preferably, mechanical means are provided for slightly varying speeds longitudinal straps so the speed in any transverse point of the veil equivalent for all belts.
De manière avantageuse, le dispositif de l'invention comprend en outre des moyens de condensation des fibres et/ou filaments disposés en amont du premier jeu de disques boucleurs et du premier jeu d'éléments boucleurs fixes.Advantageously, the device for the invention further comprises condensation means fibers and / or filaments arranged upstream of the first set of looping disks and the first set of looping elements fixed.
Ces moyens de condensation des fibres sont constitués de préférence par un deuxième jeu de disques boucleurs portés sur un second axe commun transversal et entraínés en rotation continue à une vitesse et entre lesquels sont disposés des éléments boucleurs fixes formant un deuxième jeu d'éléments boucleurs. Le deuxième jeu de disques boucleurs et le deuxième jeu d'éléments boucleurs fixes présentent la même jauge que le premier jeu de disques boucleurs et le premier jeu d'éléments boucleurs fixes, et la vitesse de rotation du deuxième jeu de disques boucleurs est supérieure à celle du premier jeu de disques boudeurs.These means of condensation of the fibers are preferably constituted by a second set of discs looper worn on a second common transverse axis and driven in continuous rotation at a speed and between which are arranged fixed looping elements forming a second set of looping elements. The second game of Looper disks and the second set of Looper elements the same gauge as the first set of Looper disks and the first set of Looper elements fixed, and the speed of rotation of the second set of discs looper is greater than the first set of disks loopers.
La figure 1 représente une vue en coupe du dispositif selon une première forme d'exécution permettant la mise en oeuvre du procédé selon la présente invention.FIG. 1 represents a sectional view of device according to a first embodiment allowing the implementation of the method according to the present invention.
La figure 2 représente une vue par le dessus du dispositif tel que représenté à la figure 1.Figure 2 shows a view from above of the device as shown in Figure 1.
La figure 3 représente une vue par le dessus du dispositif tel que représenté à la figure 1 et dans lequel on a représenté les fibres et/ou filaments qui ont subi les étapes de prébouclage.Figure 3 shows a view from above of the device as shown in FIG. which fibers and / or filaments which have been undergone pre-whetting steps.
La figure 4 représente une vue par le dessus du tapis étaleur permettant l'étirage des fibres et/ou filaments et présent dans les dispositifs représentés aux figures 1, 2 et 3. Figure 4 shows a view from above spreading carpet for drawing the fibers and / or filaments and present in the devices shown in Figures 1, 2 and 3.
La figure 5 représente une vue en coupe dispositif selon une seconde forme d'exécution permettant la mise en oeuvre du procédé selon la présente invention.Figure 5 shows a sectional view device according to a second embodiment allowing the implementation of the method according to the present invention.
La figure 6 représente des vues par le dessus du dispositif tel que représenté à la figure 5 et dans lequel on a représenté les fibres et/ou filaments qui ont subi les étapes de prébouclage.Figure 6 shows views from above of the device as shown in FIG. which fibers and / or filaments which have been undergone pre-whetting steps.
La figure 7 représente une vue en coupe d'un dispositif particulier permettant la mise en oeuvre avantageuse du procédé selon la présente invention, destiné à la réalisation de produits dits condensés.Figure 7 shows a sectional view of a particular device allowing the implementation advantage of the method according to the present invention, intended to the production of so-called condensed products.
La figure 8 représente un dispositif complet qui permet la réalisation d'un produit spécifique à base de rubans permettant la réalisation d'un produit de type nappé-collé.Figure 8 shows a complete device which allows the realization of a specific product based on ribbons allowing the realization of a product of type topped laminated.
On a décrit la présente invention en se référant aux techniques de verticalisation décrites plus particulièrement dans les publications antérieures de la Demanderesse, et en particulier dans les publications WO91/00382 et WO98/36119.The present invention has been described by referring to verticalization techniques described more especially in previous publications of the Applicant, and in particular in publications WO91 / 00382 and WO98 / 36119.
Le principe à la base de la présente invention vise donc à préparer le voile de fibres et/ou filaments, et plus particulièrement à ajuster l'angle desdits fibres et/ou filaments individuels du voile qui seront soumis à l'étape de bouclage-étirage telle que décrite en détail dans les diverses publications antérieures.The principle underlying this The invention therefore aims to prepare the fiber web and / or filaments, and more particularly to adjust the angle said individual fibers and / or filaments of the veil will be subjected to the stretch-looping stage such as described in detail in the various publications earlier.
Toutefois, le procédé décrit dans la présente invention peut également servir à la constitution de voiles destinés aux techniques classiques d'aiguilletage, calandrage, de consolidation chimique ou de consolidation ultrasons telles que décrites abondamment dans l'état de l'art.However, the process described herein invention can also be used for the constitution of sails intended for conventional needling techniques, calendering, chemical consolidation or consolidation ultrasound as described extensively in the state of art.
Plus particulièrement, le procédé à la base de la présente invention pourra permettre la réalisation de voiles présentant un poids variant de la gamme classique de 10 à 50 g/m2 jusqu'à des valeurs de 100 à 300 g/m2, et ceci sans difficultés.More particularly, the process on which the present invention is based may make it possible to produce sails with a weight ranging from the conventional range of 10 to 50 g / m 2 up to values of 100 to 300 g / m 2 , and this without difficulties.
De même, le procédé à la base de la présente invention pourra permettre la réalisation de voiles présentant une largeur variable allant de 0,5 à plusieurs mètres sans difficultés.Similarly, the process underlying this invention will allow the realization of sails having a variable width ranging from 0.5 to several meters without difficulties.
Contrairement à ce qui a été décrit dans la publication WO91/00382, où l'on proposait de réaliser le pré-bouclage grâce à un enchevêtrement d'un premier jeu de disques disposés sur un premier arbre et d'un second jeu de disques disposés sur un second arbre, la présente invention propose de réaliser une orientation adéquate des éléments constitutifs du voile par prébouclage grâce à un jeu de disques boucleurs disposés sur un premier arbre et entraínés en rotation à vitesse continue, qui coopèrent avec des doigts boucleurs qui sont fixes et dont le profil permet l'engagement et puis l'entraínement de la matière. A l'issue de ce prébouclage, on retient par des moyens de blocage les éléments constitutifs du voile que sont les fibres et/ou filaments de manière régulière et on permet l'expansion de ces fibres et/ou filaments prébouclés de manière à obtenir des fibres et/ou filaments présentant de plus grandes ondulations. On étale ensuite ces grandes ondulations.Unlike what was described in the publication WO91 / 00382, where it was proposed to carry out the pre-looping through an entanglement of a first set of discs arranged on a first tree and a second set of discs arranged on a second shaft, the present invention proposes to achieve an adequate orientation of the elements constituents of the veil by pre-coupling thanks to a set of curler discs arranged on a first tree and driven in rotation at a continuous speed, which cooperate with curly fingers that are fixed and whose profile allows the commitment and then the training of the material. AT the outcome of this precoupling, it retains by means of blocking the constituent elements of the veil that are the fibers and / or filaments on a regular basis and the expansion of these fibers and / or pre-beaded filaments of to obtain fibers and / or filaments with larger ripples. We then spread these large undulations.
Les figures 1 et 2 représentent des vues en
coupe et par le dessus d'une première forme d'exécution
d'un dispositif destiné à mettre en oeuvre le procédé de
prébouclage selon la présente invention permettant
l'orientation des fibres et/ou filaments individuels.
présents dans un voile. Ce dispositif comprend un premier
jeu de disques boucleurs 11 disposés selon une jauge j sur
un premier arbre commun transversal 10 et entre lesquels
sont disposés des doigts boucleurs 12 fixes constituant un
premier jeu d'éléments boucleurs. Les disques boucleurs 11
sont entraínés en rotation à vitesse continue et de
préférence constante tandis que les doigts boucleurs 12
sont fixes.Figures 1 and 2 show views in
cut and from above a first embodiment
of a device for implementing the method of
prebouqueting according to the present invention allowing
the orientation of the individual fibers and / or filaments.
present in a veil. This device includes a first
set of
Avantageusement, selon cette première forme
d'exécution, on se propose de disposer régulièrement un
doigt boucleur fixe 15 plus long que les autres doigts
boucleurs 12 tous les 2 à 20 doigts boucleurs 12, de
préférence tous les 3 à 10 doigts boucleurs 12, soit avec
une jauge (n x j) où 2 ≤ n (entier) ≤ 20.Advantageously, according to this first form
execution, it is proposed to have a regular
De cette manière, la présence du doigt
boucleur 15 plus long apparaítra à intervalles réguliers
soit tous les (2 x j) à (20 x j). Ces doigts boucleurs plus
longs 15 constituent donc les éléments de blocage définis
ci-dessus.In this way, the presence of the
La figure 3 décrit trois fibres successives f1, f2 et f3 entraínées par le dispositif selon cette première forme d'exécution. On observe clairement les différentes étapes successives auxquelles sont soumises ces trois fibres f1, f2 et f3 à différents moments dans la progression du voile dans le dispositif.Figure 3 describes three successive fibers f1, f2 and f3 driven by the device according to this first form of execution. We clearly observe different successive stages to which these three fibers f1, f2 and f3 at different times in the progression of the veil in the device.
On remarque en effet que les fibres f1 qui
viennent d'être (pré) bouclées par le système doigts
boucleurs courts 12 / disques boucleurs 11 sont encore
maintenues tendues entre les doigts boucleurs courts 12 et
les disques boucleurs 11 sous la forme de petites
ondulations présentant une valeur d'ondulation ou
période j. Les disques boucleurs 11 continuent à pousser
les fibres f1 jusqu'au moment où elles vont quitter
l'extrémité des doigts boucleurs courts 12. A cet instant,
les fibres f1 n'étant plus sous tension vont chercher de
par leur résilience à s'expanser et à prendre la forme des
fibres telles que représentées par f2 sans toutefois
quitter les disques boucleurs 11. La période des fibres f2
reste j.We note in fact that the fibers f1 which
have just been (pre) looped by the finger system
Grâce à la cohésion inter-fibres du voile,
les fibres telles que les fibres f2 vont être extirpées des
disques boudeurs 11 par les fibres disposées en aval et
pouvoir s'expanser pleinement tout en étant maintenues dans
les limites des doigts boucleurs longs 15 servant de moyens
de blocage comme cela est représenté pour les fibres f3. A
ce stade, on a réalisé de grandes ondulations avec une
valeur d'ondulation ou période (n x j), où n est la
fréquence à laquelle les doigts boucleurs longs 15 sont
disposés entre les doigts boucleurs courts 12. n est donc
un nombre entier compris entre 2 et 20.Thanks to the inter-fiber cohesion of the veil,
fibers such as fibers f2 will be removed from
La jauge j, c'est-à-dire la distance entre
deux disques boucleurs 11 ou deux doigts boucleurs courts
12 consécutifs, est de préférence faible, c'est-à-dire
comprise entre 2 et 15 mm, et plus particulièrement entre 5
et 10 mm. Ceci permet de garantir un étirage plus régulier.
Le fait d'être parti d'une jauge j relativement faible a
permis d'étirer le voile de façon très régulière et
homogène, ce qui n'aurait pas été possible si on avait
utilisé comme jauge de bouclage la jauge correspondant aux
doigts boucleurs longs 15, soit la jauge (n x j).The gauge j, that is to say the distance between
two
Les grandes ondulations de période (n x j)
sont conduites vers le tapis étaleur 100 qui se présente
sous la forme de plusieurs lanières ou courroies
101,102,103,... de section quelconque, et qui permettent de
recueillir les fibres par gravité ou même grâce à une
légère aspiration, à la sortie des doigts les plus longs
15. Ces lanières ou courroies 101,102,103,... sont
disposées de manière divergente, comme représenté à la
figure 4, et vont donc en s'évasant dans le plan du voile
et permettent ainsi d'accompagner les ondulations tout en
contrôlant leur mise à plat. Large period ripples (n x j)
are conveyed to the spreading
Judicieusement, les doigts boucleurs longs 15
se prolongent entre les courroies ou lanières
101,102,103,...Judiciously, the long
De préférence, le nombre de doigts boucleurs longs 15 est équivalent au nombre de lanières.Preferably, the number of looper fingers long 15 is equivalent to the number of strips.
Le fait de proposer un tapis étaleur se présentant sous forme de courroies permet avantageusement d'aplanir totalement le voile et donc de l'élargir.Proposing a spreading mat is presenting in the form of belts advantageously allows to completely flatten the veil and thus to widen it.
De manière particulièrement avantageuse, il conviendra de prévoir des moyens mécaniques adéquats permettant que la composante longitudinale (c'est-à-dire dans le sens d'avance de la courroie) de chaque courroie soit légèrement différente, de manière que la vitesse d'avance en chaque point transversal du voile soit équivalente.In a particularly advantageous way, appropriate mechanical means should be allowing the longitudinal component (ie in the direction of advance of the belt) of each belt be slightly different, so that the speed in advance at each transversal point of the veil either equivalent.
Grâce à la cohésion intrinsèque du voile, les
fibres en aval déjà présentes entre les courroies vont
entraíner les fibres situées sur les doigts boucleurs longs
15. Ce dispositif présente l'avantage de simplifier le
dispositif général mais nécessite toutefois la présence
d'un voile suffisamment cohésif (et donc suffisamment
lourd).Thanks to the intrinsic cohesion of the veil,
downstream fibers already present between the belts are going
drive the fibers located on the
Selon une autre forme d'exécution préférée,
le procédé selon la présente invention peut être mis en
oeuvre avec le dispositif décrit aux figures 5 et 6. Ce
dispositif comprend d'une part un premier jeu de disques
boucleurs 11 portés sur un premier axe commun transversal
10 et entraínés en rotation continue à une première vitesse
V1, entre lesquels sont disposés un jeu de doigts boucleurs
courts 12. Ce premier jeu de disques 11 et ce jeu de doigts
boucleurs 12 présentent une jauge j. En aval de ce jeu de
disques boucleurs 11 et dans le prolongement de certains
des doigts boucleurs 12 est disposé un autre jeu de disques
25 portés également sur un axe commun transversal 20
parallèle au premier axe 10. According to another preferred embodiment,
the method according to the present invention can be
with the device described in FIGS. 5 and 6.
device comprises on the one hand a first set of
Cet autre jeu de disques 25 est appelé jeu de
"disques détacheurs" et présente une jauge (n x j) où n est
un nombre entier compris entre 2 et 20. En effet, on a
disposé un disque détacheur 25 à intervalles réguliers dans
le prolongement de certains des doigts boucleurs 12 tous
les (n x j) doigts boucleurs 12.This other 25 disc game is called a game of
"detaching disks" and has a gauge (n x j) where n is
an integer between 2 and 20. Indeed, we have
disposed a
Les disques détacheurs 25 sont également
entraínés en rotation continue à une vitesse V2 équivalente
à la vitesse V1 des premiers disques boucleurs 11 et ceci
dans le même sens.The
La formation des ondulations des fibres est
décrite à la figure 6 et correspond exactement à ce qui a
été décrit précédemment en relation avec la figure 3, à la
différence que le rôle joué par les doigts boucleurs longs
15 est cette fois joué par les disques détacheurs 25.The formation of the undulations of the fibers is
described in Figure 6 and corresponds exactly to what
previously described in relation to FIG.
difference that the role played by long
Dans ce cas de figure, les disques détacheurs
25 tournant dans le même sens que les disques boucleurs 11
vont détacher les ondulations du premier jeu de disques
boucleurs 11 et les conduire positivement jusqu'au tapis
étaleur 100 qui est composé de plusieurs courroies
101,102,103,... légèrement divergentes, comme représenté à
la figure 4.In this case, the
Avantageusement, les disques détacheurs 25
pénètrent légèrement entre les courroies 101, 102, 103 ....Advantageously, the detaching
Les grandes ondulations sont simplement aplanies par les courroies divergentes en même temps que le voile trouve sa nouvelle largeur.The big waves are simply smoothed by the diverging belts at the same time as the sail finds its new breadth.
A nouveau, le nombre de disques détacheurs correspond au nombre de courroies.Again, the number of detachers corresponds to the number of belts.
En utilisant de tels dispositifs, on comprend que l'on peut compenser le manque de résilience des fibres disposées dans le voile à la sortie de la carde après leur bouclage en réalisant un étirage plus élevé, et ceci en une seule étape. Par un réglage individuel de la pénétration des doigts à l'intérieur des disques ainsi que par l'ajustement variable des angles d'évasement des courroies, on peut moduler la valeur de l'étirage par tranches et corriger ainsi les courbes de poids du voile.Using such devices, we understand that we can compensate for the lack of resilience of the fibers placed in the sail at the exit of the card after their looping by performing a higher stretch, and this in one only step. By an individual adjustment of the penetration fingers inside the discs as well as by the variable adjustment of the flaring angles of the belts, one can modulate the value of the stretching by slices and thus correct the weight curves of the veil.
De plus, en jouant sur la jauge et en suggérant une jauge plus fine ainsi qu'en proposant des courroies particulières, on peut étirer des éléments constitutifs du voile qui peuvent être des fibres, des filaments et même des rubans ou de gros fils présentant une faible largeur.Moreover, by playing on the gauge and suggesting a thinner gauge as well as proposing particular belts, one can stretch elements components of the veil which may be fibers, filaments and even ribbons or big threads with a narrow width.
En choisissant volontairement une jauge très fine, on peut étirer des rubans de filaments continus en les cassant afin d'obtenir des fibres dont la longueur moyenne sera fonction de la jauge.By voluntarily choosing a very thin, continuous filament ribbons can be stretched breaking them to obtain fibers whose length average will depend on the gauge.
La figure 7 représente une variante du dispositif décrit à la figure 5 et qui permet de réaliser la condensation de fibres et/ou filaments en vue de réaliser un matelas plus épais. En particulier, un tel dispositif permet d'obtenir un taux de condensation pouvant atteindre 500% alors que les dispositifs classiques atteignent au maximum des valeurs de l'ordre de 80%.Figure 7 shows a variant of the device described in Figure 5 and which allows to achieve condensation of fibers and / or filaments with a view to make a thicker mattress. In particular, such device makes it possible to obtain a condensation rate which can reach 500% while conventional devices reach values of the order of 80%.
Selon la présente invention, et comme
représenté à la figure 7, le dispositif comprend, en amont
du premier jeu de disques boucleurs 11 portés sur un
premier axe commun transversal 10, entraínés en rotation
continue à une vitesse V1, et entre lesquels sont disposés
des doigts boucleurs 12 formant un premier jeu d'éléments
boucleurs 12, un deuxième jeu de disques boucleurs 51
portés sur un second axe commun transversal 50, entraínés
en rotation continue à une vitesse V5, et entre lesquels
sont disposés des éléments boucleurs fixes 52 qui forment
un deuxième jeu d'éléments boucleurs.According to the present invention, and as
represented in FIG. 7, the device comprises, upstream
of the first set of 11 looping disks worn on a
first common
Ces deux jeux de disques boucleurs 11 et 51
présentent une jauge j. Comme décrit précédemment, à ce
premier jeu de disques boucleurs 11 est associé un jeu de
disques détacheurs 25 mais présentant une jauge (n x j). These two sets of
En vue d'effectuer la condensation des
fibres, la vitesse d'entraínement V5 du second jeu de
disques boucleurs 51 est supérieure à la vitesse
d'entraínement V1 du premier jeu de disques boucleurs 11.
Ceci permet de "condenser" les fibres et donc de les
accumuler avant qu'elles ne soient entraínées par
l'ensemble disques boucleurs 11 / doigts boucleurs 12.In order to effect the condensation of
fibers, the V5 drive speed of the second set of
De cette manière, on peut réaliser un matelas d'un poids quelconque, allant jusqu'à des valeurs de 300 g/m2, et qui peut être utilisé dans les techniques de calandrage, nappage, consolidation chimique, consolidation par ultrasons, etc.In this way, a mattress of any weight up to values of 300 g / m 2 can be produced which can be used in calendering, glazing, chemical consolidation, ultrasonic consolidation, etc.
Il est à noter que le dispositif de
condensation représenté à la figure 7 pourrait également
être utilisé avec la première forme d'exécution préférée de
l'invention décrite plus haut, c'est-à-dire celle utilisant
les doigts boucleurs longs 15 comme éléments de blocage.It should be noted that the
condensation shown in Figure 7 could also
to be used with the first preferred embodiment of
the invention described above, that is to say that using
long looping
A titre d'exemple d'exécution, il est décrit
à la figure 8 un dispositif permettant la réalisation d'un
exemple particulier de produit de type "nappé-collé" obtenu
à partir de six rubans de 25 kTex qui permettent de générer
directement un voile de fibres de 23 g/m2 sur une largeur
de 1,80 m. Ce voile sera ensuite directement soumis au
dispositif tel que décrit dans les demandes antérieures et
appelé dispositif de "verticalisation".
Claims (12)
- A process for obtaining an appropriate orientation of constituent elements of a web, such as fibres and/or filaments, for example derived from a card, characterised in that:the fibres and/or filaments are submitted to a pre-looping step carried out by means of the interpenetration of a first set of looping discs (11) carried on a common transverse axis (10) and driven in continuous rotation at a first speed (V1), and of a first set of fixed looping elements (12), the set of looping discs (11) and the set of looping elements (12) having a defined gauge (j) so as to cause the fibres and/or filaments to be pre-looped with a crimp value or period (j),with the aid of blocking means, said fibres and/or filaments are held at regular intervals of a length of (n×j) where n is an integer comprised between 2 and 20,the pre-looped fibres and/or filaments are allowed to expand so as to produce large crimps with a crimp value or period (n×j), andthe pre-looped fibres and/or filaments are spread by simple drawing over a crimp value or period (n×j).
- A device for implementing the process according to claim 1, characterised in that it comprises:a first set of looping discs (11) carried on a common transverse axis (10) and driven in continuous rotation at a first speed (VI),a first set of fixed looping elements (12), said looping elements (12) being arranged between said looping discs (11), the set of looping discs (11) and the set of looping elements (12) having a defined gauge (j) so as to cause the fibres and/or filaments to be pre-looped with a crimp value or period (j),blocking elements (15, 25) regularly arranged with a gauge (nxj) where n is an integer comprised between 2 and 20, which are intended to block the pre-looped fibres and/or filaments over a crimp value or period (j) at regular intervals of a length (nxj), anda spreader (100) for flattening the fibres and/or filaments.
- The device according to claim 2, characterised in that the looping elements (12, 15) are looping fingers.
- The device according to claim 3, characterised in that the blocking elements consist of looping fingers (15) which are longer than the other looping fingers (12) and which are present every 2 to 20 consecutive looping fingers.
- The device according to claim 3, characterised in that the blocking elements consist of another set of detaching discs (25) carried on a common transverse axis (20) and driven in continuous rotation at a speed corresponding to the rotation speed (V1) of the looping discs (11).
- The device according to claim 5, characterised in that the detaching discs (25) are arranged in the extension of some of the looping elements (12).
- The device according to any one of claims 2 to 6, characterised in that the spreader (100) consists of a set of individual belts (101, 102, 103, etc.) arranged divergently.
- The device according to claim 7, characterised in that the number of individual belts (101, 102, 103, etc.) corresponds substantially to the number of blocking elements.
- The device according to claim 7 or 8, characterised in that the blocking elements penetrate slightly between the different individual belts (101, 102, 103, etc.).
- The device according to any one of claims 7 to 9, characterised in that mechanical means are provided to slightly vary the longitudinal speeds of the belts, such that the feed speed at any transverse point in the web is equivalent for all the belts (101, 102, 103, etc.).
- The device according to any one of claims 2 to 10, characterised in that it further comprises condensation means of the fibres and/or filaments arranged upstream the first set of looping discs (11) and the first set of fixed looping elements (12).
- The device according to claim 11, characterised in that the condensation means of the fibres consist of a second set of looping discs (51) carried on a second common transverse axis (50) and driven in continuous rotation at a speed (V5) and between which fixed looping elements (52) are arranged, forming a second set of looping elements, the second set of looping discs (51) and the second set of fixed looping elements (52) having the same defined gauge (j) as the first set of looping discs (11) and the first set of fixed looping elements (12), the rotation speed (V5) of the second set of looping discs (51) being greater than that of the first set of looping discs (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00945929A EP1194627B1 (en) | 1999-07-12 | 2000-07-12 | Method and device for orienting individual fibres and/or filaments present in a web |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99870152 | 1999-07-12 | ||
| EP99870152 | 1999-07-12 | ||
| EP00945929A EP1194627B1 (en) | 1999-07-12 | 2000-07-12 | Method and device for orienting individual fibres and/or filaments present in a web |
| PCT/EP2000/006858 WO2001004404A1 (en) | 1999-07-12 | 2000-07-12 | Method and device for orienting individual fibres and/or filaments present in a web |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1194627A1 EP1194627A1 (en) | 2002-04-10 |
| EP1194627B1 true EP1194627B1 (en) | 2005-05-18 |
Family
ID=8243872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00945929A Expired - Lifetime EP1194627B1 (en) | 1999-07-12 | 2000-07-12 | Method and device for orienting individual fibres and/or filaments present in a web |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6519820B1 (en) |
| EP (1) | EP1194627B1 (en) |
| AT (1) | ATE295907T1 (en) |
| AU (1) | AU5985600A (en) |
| CA (1) | CA2377419A1 (en) |
| DE (1) | DE60020237T2 (en) |
| DK (1) | DK1194627T3 (en) |
| ES (1) | ES2241623T3 (en) |
| PT (1) | PT1194627E (en) |
| WO (1) | WO2001004404A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HUP0401094A2 (en) * | 2001-07-18 | 2008-02-28 | Tarkett Sommer Sa | Method and device for making meshed textile products directly from fibres and/or filaments and resulting products |
| FR3068371B1 (en) * | 2017-06-29 | 2019-08-16 | Faurecia Automotive Industrie | PROCESS FOR MANUFACTURING A UNIDIRECTIONAL SHORT FIBER TABLE |
| FR3081886B1 (en) * | 2018-06-01 | 2020-08-28 | Faurecia Automotive Ind | TOOLS INTENDED TO BE MOUNTED ON A ROTATING SHAFT, ASSOCIATED MANUFACTURING PROCESS, CLOSING DEVICE AND MANUFACTURING DEVICE FOR A TEXTILE VEHICLE COATING |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755051A (en) * | 1970-10-05 | 1973-08-28 | Kimberly Clark Co | High-loft, nonwoven paneling material and covering |
| US3705063A (en) * | 1970-10-05 | 1972-12-05 | Kimberly Clark Co | Method of producing high-loft,nonwoven paneling material and covering |
| US5239734A (en) * | 1989-06-30 | 1993-08-31 | Sommer S.A. | Process and device for manufacturing textile products from fibres and/or filaments and products obtained |
| ES2210317T3 (en) * | 1994-09-30 | 2004-07-01 | Tarkett Sommer S.A. | PROCEDURE AND DEVICE FOR THE MANUFACTURE OF TEXTILE PRODUCTS FROM FIBERS AND / OR FILAMENTS, AND PRODUCTS OBTAINED. |
| JP2000501789A (en) | 1995-08-01 | 2000-02-15 | ソンメ ルベットマン フランス エス．アー． | Apparatus and method for manufacturing textile articles |
| US6012205A (en) * | 1995-08-01 | 2000-01-11 | N.S.C. N.Schlumberger | Method and device for making textile products |
| EP0859077A1 (en) | 1997-02-14 | 1998-08-19 | Sommer S.A. | Method and device for making textile products and obtained textile products |
-
2000
- 2000-07-12 DK DK00945929T patent/DK1194627T3/en active
- 2000-07-12 US US10/031,242 patent/US6519820B1/en not_active Expired - Lifetime
- 2000-07-12 AT AT00945929T patent/ATE295907T1/en not_active IP Right Cessation
- 2000-07-12 PT PT00945929T patent/PT1194627E/en unknown
- 2000-07-12 AU AU59856/00A patent/AU5985600A/en not_active Abandoned
- 2000-07-12 CA CA002377419A patent/CA2377419A1/en not_active Abandoned
- 2000-07-12 DE DE60020237T patent/DE60020237T2/en not_active Expired - Fee Related
- 2000-07-12 WO PCT/EP2000/006858 patent/WO2001004404A1/en active IP Right Grant
- 2000-07-12 ES ES00945929T patent/ES2241623T3/en not_active Expired - Lifetime
- 2000-07-12 EP EP00945929A patent/EP1194627B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1194627A1 (en) | 2002-04-10 |
| US6519820B1 (en) | 2003-02-18 |
| DE60020237T2 (en) | 2006-01-12 |
| AU5985600A (en) | 2001-01-30 |
| WO2001004404A1 (en) | 2001-01-18 |
| DE60020237D1 (en) | 2005-06-23 |
| ATE295907T1 (en) | 2005-06-15 |
| DK1194627T3 (en) | 2005-08-15 |
| CA2377419A1 (en) | 2001-01-18 |
| ES2241623T3 (en) | 2005-11-01 |
| PT1194627E (en) | 2005-08-31 |
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