EP1194627A1 - Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voile - Google Patents
Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voileInfo
- Publication number
- EP1194627A1 EP1194627A1 EP00945929A EP00945929A EP1194627A1 EP 1194627 A1 EP1194627 A1 EP 1194627A1 EP 00945929 A EP00945929 A EP 00945929A EP 00945929 A EP00945929 A EP 00945929A EP 1194627 A1 EP1194627 A1 EP 1194627A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- discs
- elements
- fibers
- sulking
- filaments
- 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
Links
Classifications
-
- 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 an improved method and device allowing the orientation of individual fibers and / or filaments present in a web, in particular from a card.
- Another possibility consists in proposing to carry out a passage in a spreader-lapper in order to produce a ply comprising several plies, as for example described in the document EP-A-0520911. Of preferably, this topping step is carried out before passing through a stretcher.
- the Applicant has developed a particular technique called “verticalization technique” which allows the production of textile products from a veil of fibers and / or individual filaments.
- This technique has already been the subject of numerous publications since 1991, and has been described in particular in documents WO91 / 00382, O96 / 10667, O97 / 05315 and 098/36119. 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 process comprising at least one step called “looping step” in which the fibers and / or filaments individually undergo looping transversely to the direction of advance of the web, possibly accompanied by transverse stretching.
- the starting veil of fibers and / or filaments have a low weight per unit area (preferably between 10 and 50 g / m 2 ).
- the majority of the constituent elements of the veil that is to say the fibers and / or filaments, have an angle of orientation relative to the direction of advance of the veil of between 5 and 45 degrees, and preferably between 15 and 25 degrees.
- a pre-stretching step has been provided so that the constituent elements of the web (the fibers and / or filaments) have the right angle of entry before undergo the so-called verticalization step which consists in individually printing the constituent elements of the web a transverse looping accompanied by stretching and followed by an accumulation of said fibers and / or filaments particularly well parallelized in the form of loops in order to constitute a pseudo -fil.
- the pre-stretching step consists in passing a veil of low surface density in a set of interpenetrating discs which oblige the veil, possibly originating from the card, to undergo looping over a width greater than that of the product to be achieve.
- the fibers are then left to find, by resilience, a flat position which they obtain by extension in the width direction, while allowing the fibers to pivot towards a new orientation.
- this pre-stretching step consists in subjecting the web to a set of discs spaced apart by a distance j (gauge) arranged on two shafts.
- the discs of the two shafts are positioned in staggered rows with respect to each other and interpenetrate over a distance d which makes it possible to define the amplitude of the looping and therefore the stretching value, ie e ⁇ 2 j / d and therefore to define .
- the present invention aims firstly to provide a solution which allows to change the width of the veil, possibly from the card. More particularly, the present invention aims to provide a veil which will undergo the verticalization process and in which the individual fibers and / or filaments have the appropriate orientation.
- the present invention also aims to allow, in addition to an adequate orientation of the fibers within said veil, an isotropic orientation of said fibers. Finally, the present invention further aims to allow the production of a veil having a condensation of the fibers, in particular in the case of a preparation of a dense product. Description of the main characteristic elements of the invention
- the present invention relates to a method making it possible to obtain an adequate orientation of the constituent elements of a veil, such as fibers and / or filaments, for example from a card, characterized in that:
- the fibers and / or filaments are subjected to a pre-looping step carried out thanks to the interpenetration of a first set of loosening discs carried on a common transverse axis and driven in continuous rotation at a first speed, and of a first set of fixed spoiler elements, the set of spoiler discs and the set of spoiler elements having a gauge j defined so as to pre-loop the fibers and / or filaments with a ripple value or period j,
- the fibers and / or filaments pre-looped are allowed to expand so as to produce large undulations having a ripple value or period (n ⁇ j), and
- the fibers and / or filaments pre-looped are spread by a simple transverse stretch over a waviness value or period (n x j).
- the present invention also relates to the device intended for the implementation of this method, characterized in that it comprises: - a first set of loosely packed discs carried on a common transverse axis and driven in continuous rotation to a first speed,
- a first set of fixed sulking elements the set of sulking discs and the set of sulking elements having a defined gauge (j) in order to pre-loop the fibers and / or filaments with a wavy value or period (j),
- nxj a gauge where n is an integer between 2 and 20 and intended to block the fibers and / or filaments pre-looped to a ripple value or period (j) at regular intervals of a length (nxj), and
- said pouting elements of the device are pouting fingers.
- said blocking elements are constituted by longer pouting fingers than the other pouting fingers and present every 2 to 20 consecutive pouting fingers.
- these blocking elements are constituted by another set of detaching discs carried on a common transverse axis and driven in continuous rotation at a speed corresponding to the speed of rotation of the sulking discs.
- the detaching discs are arranged in the extension of some of the pouting fingers.
- the spreader belt is constituted by a set of individual belts arranged in a divergent manner, and preferably, the number of these individual belts essentially corresponds to the number of locking elements.
- the locking elements penetrate slightly between the different individual belts.
- mechanical means are provided for slightly varying the longitudinal speeds of the belts so that the speed in advance at any transverse point of the web is equivalent for all belts.
- the device of the invention further comprises means for condensing the fibers and / or filaments arranged upstream of the first set of looper discs and of the first set of fixed looper elements.
- These fibers condensing means are preferably constituted by a second set of loosening discs carried on a second common transverse axis and driven in continuous rotation at a speed and between which are fixed loosening elements forming a second set of sulky elements.
- the second set of sulking discs and the second set of fixed sulking elements have the same gauge as the first set of sulking discs and the first set of fixed sulking elements, and the speed of rotation of the second set of sulking discs is greater than that of the first set of sulky discs.
- Figure 1 shows a sectional view of the device according to a first embodiment allowing the implementation of the method according to the present invention.
- 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 Figure 1 and in which the fibers and / or filaments which have undergone the pre-looping stages.
- FIG. 4 represents a view from above of the spreading belt allowing the drawing of the fibers and / or filaments and present in the devices represented in FIGS. 1, 2 and 3.
- 5 shows a device sectional view 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 Figure 5 and in which there is shown the fibers and / or filaments which have undergone the pre-looping steps.
- Figure 7 shows a sectional view of a particular device for the advantageous implementation of the method according to the present invention, for the production of so-called condensed products.
- FIG. 8 shows a complete device which allows the production of a specific product based on ribbons for the production of a coated-glued type product.
- the principle underlying the present invention therefore aims to prepare the veil of fibers and / or filaments, and more particularly to adjust the angle of said individual fibers and / or filaments of the veil which will be subjected to the step of loop-stretch as described in detail in the various previous publications.
- the method described in the present invention can also be used for the formation of webs for conventional needling techniques, calendering, chemical consolidation or consolidation. ultrasound as described extensively in the state of the art.
- the process on the basis of the present invention may allow the production of sails having a weight varying from the conventional range of
- the process on which the present invention is based may allow the production of sails having a variable width ranging from 0.5 to several meters without difficulty.
- the present invention proposes to achieve an adequate orientation of the constituent elements of the web by pre-looping thanks to a set of looper discs arranged on a first shaft and driven in rotation at continuous speed, which cooperate with loosening fingers which are fixed and whose profile allows the engagement and then the training of the material.
- FIGS. 1 and 2 show sectional views from above of a first embodiment of a device for implementing the pre-looping method according to the present invention allowing the orientation of the fibers and / or individual filaments present in a veil.
- This device comprises a first set of pouting discs 11 arranged according to a gauge j on a first transverse common shaft 10 and between which are arranged pouting fingers 12 constituting a first game of pouting elements.
- the sulking discs 11 are driven in rotation at a continuous and preferably constant speed while the sulking fingers 12 are fixed.
- this first embodiment it is proposed to regularly have a fixed pouting finger 15 longer than the other pouting fingers 12 every 2 to 20 pouting fingers 12, preferably every 3 to 10 pouting fingers 12, either with a gauge (nxj) where 2 ⁇ n (integer) ⁇ 20.
- Figure 3 describes three successive fibers fl, f2 and f3 driven by the device according to this first embodiment. We clearly observe the different successive stages to which these three fibers fl, f2 and f3 are subjected at different times in the progression of the web in the device.
- the fibers fl which have just been (pre) looped by the system of short pouting fingers 12 / pouting discs 11 are still kept stretched between the short pouting fingers 12 and the pouting discs 11 in the form of small ripples with a ripple value or period j.
- the sulking discs 11 continue to push the fibers fl until they leave the end of the short sulking fingers 12.
- the fibers fl not being under any more tension will seek by their resilience to expand and take the form of fibers as represented by f2 without however leaving the sulking discs 11.
- the period of the fibers f2 remains j.
- the fibers such as the fibers f2 will be extracted from the looper discs 11 by the fibers arranged downstream and be able to fully expand while being kept within the limits of the long loosely fingered 15 serving as locking means as shown for the fibers f3.
- large undulations have been made with a ripple value or period (nxj), where n is the frequency at which the long sulky fingers 15 are arranged between the short sulky fingers 12. n is therefore an integer included between 2 and 20.
- the gauge j that is to say the distance between two sulking discs 11 or two short sulking fingers 12 consecutive, is preferably small, that is to say between 2 and 15 mm, and more particularly between 5 and 10 mm. This guarantees a more regular stretch.
- the fact of having started from a relatively small gauge j made it possible to stretch the veil in a very regular and homogeneous manner, which would not have been possible if the gauge corresponding to the long sulky fingers had been used as looping gauge 15, i.e. the gauge (nxj). Large period ripples (nxj) are led to the spreading belt 100 which is in the form of several strips or belts 101,102,103, ...
- the number of long sulky fingers 15 is equivalent to the number of strips.
- the method according to the present invention can be implemented with the device described in Figures 5 and 6.
- This device comprises firstly a first set of loosening discs 11 carried on a first transverse common axis 10 and driven in continuous rotation at a first speed VI, between which are arranged a set of short pouting fingers 12.
- This first set of discs 11 and this game of pouting fingers 12 have a gauge j. Downstream of this set of sulking discs 11 and in the extension of some of the sulking fingers 12 is disposed another set of discs 25 also carried on a common transverse axis 20 parallel to the first axis 10.
- This other set of discs 25 is called a set of "detaching discs” and has a gauge (nxj) where n is an integer between 2 and 20.
- a detaching disc 25 has been arranged at regular intervals in the extension of some of the sulky fingers 12 every (nxj) sulky fingers 12.
- the detaching discs 25 are also driven in continuous rotation at a speed V2 equivalent to the speed VI of the first looper discs 11 and this in the same direction.
- the detaching discs 25 rotating in the same direction as the sulking discs 11 will detach the corrugations of the first set of sulking discs 11 and lead them positively to the spreading belt 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 .... [0060] The large undulations are simply flattened by the diverging belts at the same time as the web finds its new width.
- the number of detaching discs corresponds to the number of belts.
- Figure 7 shows a variant of the device described in Figure 5 and which allows for the condensation of fibers and / or filaments to achieve a thicker mattress.
- a device makes it possible to obtain a condensation rate of up to 500% while the conventional devices reach values of the order of 80% at most.
- the device comprises, upstream of the first set of loosening discs 11 carried on a first transverse common axis 10, driven in continuous rotation at a speed VI, and between which are located loosening fingers 12 forming a first set of loosening elements 12, a second set of loosening discs 51 carried on a second transverse common axis 50, driven in continuous rotation at a speed V5, and between which are fixed loosening elements 52 which form a second set of sulky elements.
- these two sets of pouting discs 11 and 51 have a gauge j. As described above, this first set of loosening discs 11 is associated with a set of detaching discs 25 but having a gauge (nxj). In order to carry out the condensation of the fibers, the driving speed V5 of the second set of loosening discs 51 is greater than the driving speed VI of the first set of loosening discs 11. This makes it possible to "condense" the fibers and therefore accumulate them before they are entrained by the pouting disc 11 / pouting fingers 12 assembly.
- condensation device shown in FIG. 7 could also be used with the first preferred embodiment of the invention described above, that is to say that using the long sulky fingers 15 as blocking elements.
- Figure 8 a device for the production of a particular example of product type "coated-glued" obtained from six ribbons of 25 kTex which allow directly generate a veil of fibers 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 the "verticalization" device.
Landscapes
- 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)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00945929A EP1194627B1 (fr) | 1999-07-12 | 2000-07-12 | Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voile |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99870152 | 1999-07-12 | ||
EP99870152 | 1999-07-12 | ||
EP00945929A EP1194627B1 (fr) | 1999-07-12 | 2000-07-12 | Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voile |
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)
Publication Number | Publication Date |
---|---|
EP1194627A1 true EP1194627A1 (fr) | 2002-04-10 |
EP1194627B1 EP1194627B1 (fr) | 2005-05-18 |
Family
ID=8243872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00945929A Expired - Lifetime EP1194627B1 (fr) | 1999-07-12 | 2000-07-12 | Procede et dispositif permettant l'orientation de fibres et/ou filaments individuels presents dans un voile |
Country Status (10)
Country | Link |
---|---|
US (1) | US6519820B1 (fr) |
EP (1) | EP1194627B1 (fr) |
AT (1) | ATE295907T1 (fr) |
AU (1) | AU5985600A (fr) |
CA (1) | CA2377419A1 (fr) |
DE (1) | DE60020237T2 (fr) |
DK (1) | DK1194627T3 (fr) |
ES (1) | ES2241623T3 (fr) |
PT (1) | PT1194627E (fr) |
WO (1) | WO2001004404A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
YU4704A (sh) * | 2001-07-18 | 2005-07-19 | Tarkett Sommer S.A. | Postupak i uređaj za izradu pletenih tekstilnih proizvoda direktno od niti i/ili vlakana i dobijeni proizvodi |
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)
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 |
US6012205A (en) * | 1995-08-01 | 2000-01-11 | N.S.C. N.Schlumberger | Method and device for making textile products |
MXPA98000840A (es) | 1995-08-01 | 2004-01-28 | Sommer Sa | Procedimiento y dispositivo de fabricacion de productos textiles. |
EP0859077A1 (fr) | 1997-02-14 | 1998-08-19 | Sommer S.A. | Procédé et dispositif de fabrication de produits textiles et produits textiles obtenus |
-
2000
- 2000-07-12 EP EP00945929A patent/EP1194627B1/fr not_active Expired - Lifetime
- 2000-07-12 PT PT00945929T patent/PT1194627E/pt unknown
- 2000-07-12 US US10/031,242 patent/US6519820B1/en not_active Expired - Lifetime
- 2000-07-12 AU AU59856/00A patent/AU5985600A/en not_active Abandoned
- 2000-07-12 AT AT00945929T patent/ATE295907T1/de not_active IP Right Cessation
- 2000-07-12 DK DK00945929T patent/DK1194627T3/da active
- 2000-07-12 WO PCT/EP2000/006858 patent/WO2001004404A1/fr active IP Right Grant
- 2000-07-12 CA CA002377419A patent/CA2377419A1/fr not_active Abandoned
- 2000-07-12 ES ES00945929T patent/ES2241623T3/es not_active Expired - Lifetime
- 2000-07-12 DE DE60020237T patent/DE60020237T2/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0104404A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2377419A1 (fr) | 2001-01-18 |
DE60020237D1 (de) | 2005-06-23 |
DE60020237T2 (de) | 2006-01-12 |
ES2241623T3 (es) | 2005-11-01 |
PT1194627E (pt) | 2005-08-31 |
EP1194627B1 (fr) | 2005-05-18 |
US6519820B1 (en) | 2003-02-18 |
DK1194627T3 (da) | 2005-08-15 |
AU5985600A (en) | 2001-01-30 |
WO2001004404A1 (fr) | 2001-01-18 |
ATE295907T1 (de) | 2005-06-15 |
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