EP1194627B1 - Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten - Google Patents

Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten Download PDF

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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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EP
European Patent Office
Prior art keywords
looping
filaments
elements
discs
fibres
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Expired - Lifetime
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EP00945929A
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English (en)
French (fr)
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EP1194627A1 (de
Inventor
Xavier Bathelier
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Tarkett Sommer SA
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Tarkett Sommer SA
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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
    • 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)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (12)

  1. Verfahren, das es ermöglicht, eine entsprechende Ausrichtung von Elementen, die einen Flor bilden, wie beispielsweise Fasern und/oder Filamente, die beispielsweise von einem Rahmen kommen, zu erhalten, dadurch gekennzeichnet, dass:
    die Fasern und/oder Filamente einem Schritt des Vorschlingenbildens unterzogen werden, der durch das Ineinanderdringen eines ersten Satzes von Schlingenbildungsscheiben (11), die auf einer gemeinsamen Querachse (10) getragen und in kontinuierlicher Drehung mit einer ersten Geschwindigkeit (V1) angetrieben werden, und eines ersten Satzes von festen Schlingenbildungselementen (12) verwirklicht wird, wobei der Satz von Schlingenbildungsscheiben (11) und der Satz von Schlingenbildungselementen (12) ein definiertes Gauge (j) aufweisen, um eine Vorschlingenbildung der Fasern und/oder Filamente mit einem Wellungswert oder einer Periode (j) durchzuführen,
    mit Hilfe von Feststellmitteln die Fasern und/oder Filamente in regelmäßigen Abständen mit einer Länge von (n x j) gehalten werden, wobei n eine ganze Zahl zwischen 2 und 20 ist,
    die Dehnung der der Vorschlingenbildung unterzogenen Fasern und/oder Filamente ermöglicht wird, um große Wellungen herzustellen, die einen Wellungswert oder eine Periode von (n x j) aufweisen, und
    durch ein einfaches Verziehen die der Vorschlingenbildung unterzogenen Fasern und/oder Filamente auf einen Wellungswert oder eine Periode (n x j) aufgelegt werden.
  2. Vorrichtung, die für den Einsatz des Verfahrens nach Anspruch 1 bestimmt ist, dadurch gekennzeichnet, dass sie umfasst:
    einen ersten Satz von Schlingenbildungsscheiben (11), die auf einer gemeinsamen Querachse (10) getragen und in kontinuierlicher Drehung mit einer ersten Geschwindigkeit (V1) angetrieben werden,
    einen ersten Satz von festen Schlingenbildungselementen (12), wobei die Schlingenbildungselemente (12) zwischen den Schlingenbildungsscheiben (11) angeordnet sind, wobei der Satz von Schlingenbildungsscheiben (11) und der Satz von Schlingenbildungselementen (12) ein definiertes Gauge (j) aufweisen, um die Fasern und/oder Filamente einer Vorschlingenbildung mit einem Wellungswert oder einer Periode (j) zu unterziehen,
    Feststellelemente (15, 25), die regelmäßig mit einem Gauge (n x j) angeordnet sind, wobei n eine ganze Zahl zwischen 2 und 20 ist, und die dazu bestimmt sind, die der Vorschlingenbildung unterzogenen Fasern und/oder Filamente auf einem Wellungswert oder einer Periode (j) in regelmäßigen Abständen mit einer Länge von (n x j) festzustellen, und
    eine Auflegebahn (100), die es ermöglicht, die Fasern und/oder Filamente flach aufzulegen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Schlingenbildungselemente (12, 15) Schlingenbildungsfinger sind.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Feststellelemente von längeren Schlingenbildungsfingern (15) als die anderen Schlingenbildungsfinger (12) gebildet sind, die alle 2 bis 20 aufeinander folgende Schlingenbildungsfinger vorhanden sind.
  5. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Feststellelemente von einem weiteren Satz von Abnahmescheiben (25) gebildet sind, die auf einer gemeinsamen Querachse (20) getragen und in kontinuierlicher Drehung mit einer Geschwindigkeit angetrieben werden, die der Drehgeschwindigkeit (V1) der Schlingenbildungsscheiben (11) entspricht.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Abnahmescheiben (25) in der Verlängerung von gewissen der Schlingenbildungselemente (12) angeordnet sind.
  7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die Auflegebahn (100) von einer Gesamtheit von Einzelriemen (101, 102, 103,...), die divergierend angeordnet sind, gebildet ist.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Anzahl von Einzelriemen (101, 102, 103, ...) im Wesentlichen der Anzahl von Feststellelementen entspricht.
  9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Feststellelemente leicht zwischen die verschiedenen Einzelriemen (101, 102, 103, ...) eindringen.
  10. Vorrichtung nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass mechanische Mittel vorgesehen sind, um die Längsgeschwindigkeiten der Riemen derart leicht zu verändern, dass die Vorschubgeschwindigkeit an jedem Querpunkt des Flores für alle Riemen (101, 102, 103, ...) gleichwertig ist.
  11. Vorrichtung nach einem der Ansprüche 2 bis 10, dadurch gekennzeichnet, dass sie ferner Mittel zur Kondensation der Fasern und/oder Filamente umfasst, die stromaufwärts zum ersten Satz von Schlingenbildungsscheiben (11) und zum ersten Satz von festen Schlingenbildungselementen (12) angeordnet sind.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Mittel zur Kondensation der Fasern von einem zweiten Satz von Schlingenbildungsscheiben (51) gebildet sind, die auf einer zweiten gemeinsamen Querachse (50) getragen und in kontinuierlicher Drehung mit einer Geschwindigkeit (V5) angetrieben werden und zwischen denen feste Schlingenbildungselemente (52) angeordnet sind, die einen zweiten Satz von Schlingenbildungselementen bilden, wobei der zweite Satz von Schlingenbildungsscheiben (51) und der zweite Satz von festen Schlingenbildungselementen (52) dasselbe definierte Gauge (j) wie der erste Satz von Schlingenbildungsscheiben (11) und der erste Satz von festen Schlingenbildungselementen (12) aufweisen, wobei die Drehgeschwindigkeit (V5) des zweiten Satzes von Schlingenbildungsscheiben (51) größer als jene des ersten Satzes von Schlingenbildungsscheiben (11) ist.
EP00945929A 1999-07-12 2000-07-12 Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten Expired - Lifetime EP1194627B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00945929A EP1194627B1 (de) 1999-07-12 2000-07-12 Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP99870152 1999-07-12
EP99870152 1999-07-12
EP00945929A EP1194627B1 (de) 1999-07-12 2000-07-12 Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten
PCT/EP2000/006858 WO2001004404A1 (fr) 1999-07-12 2000-07-12 Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voile

Publications (2)

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EP1194627A1 EP1194627A1 (de) 2002-04-10
EP1194627B1 true EP1194627B1 (de) 2005-05-18

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EP00945929A Expired - Lifetime EP1194627B1 (de) 1999-07-12 2000-07-12 Verfahren und vorrichtung zur orientierung der, in einem vliesstoff befindlichen, faser oder der individuellen filamenten

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US (1) US6519820B1 (de)
EP (1) EP1194627B1 (de)
AT (1) ATE295907T1 (de)
AU (1) AU5985600A (de)
CA (1) CA2377419A1 (de)
DE (1) DE60020237T2 (de)
DK (1) DK1194627T3 (de)
ES (1) ES2241623T3 (de)
PT (1) PT1194627E (de)
WO (1) WO2001004404A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1407068A2 (de) * 2001-07-18 2004-04-14 Tarkett Sommer S.A. Verfahren und vorrichtung zur herstellung von textilen maschenwaren direkt aus fasern oder filamenten und erhaltene waren
FR3068371B1 (fr) * 2017-06-29 2019-08-16 Faurecia Automotive Industrie Procede de fabrication d'une nappe de fibres courtes unidirectionnelles
FR3081886B1 (fr) * 2018-06-01 2020-08-28 Faurecia Automotive Ind Outillage destine a etre monte sur un arbre rotatif, procede de fabrication, dispositif de bouclage et dispositif de fabrication d'un revetement textile pour vehicule associes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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
FR2649130B1 (fr) * 1989-06-30 1991-10-04 Sommer Sa Procede et dispositif de fabrication de produits textiles a partir de fibres et/ou filaments et produits obtenus
ATE255184T1 (de) * 1994-09-30 2003-12-15 Tarkett Sommer Sa Verfahren und vorrichtung zur herstellung von textilen produkten in maschenform aus fasern und/oder filamenten und erhaltene produkte
DK0842313T3 (da) * 1995-08-01 2000-07-24 Tarkett Sommer Sa Fremgangsmåde og indretning ved fremstilling af tekstilprodukter
US6012205A (en) * 1995-08-01 2000-01-11 N.S.C. N.Schlumberger Method and device for making textile products
EP0859077A1 (de) * 1997-02-14 1998-08-19 Sommer S.A. Verfahren und Vorrichtung zur Herstellung von textilen Produkten und erhaltene textile Produkte

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Publication number Publication date
ATE295907T1 (de) 2005-06-15
ES2241623T3 (es) 2005-11-01
PT1194627E (pt) 2005-08-31
DE60020237T2 (de) 2006-01-12
US6519820B1 (en) 2003-02-18
WO2001004404A1 (fr) 2001-01-18
AU5985600A (en) 2001-01-30
DE60020237D1 (de) 2005-06-23
EP1194627A1 (de) 2002-04-10
CA2377419A1 (fr) 2001-01-18
DK1194627T3 (da) 2005-08-15

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