EP1323853B1 - Verfahren und Vorrichtung zum Kräuseln von Fäden - Google Patents
Verfahren und Vorrichtung zum Kräuseln von Fäden Download PDFInfo
- Publication number
- EP1323853B1 EP1323853B1 EP02360336A EP02360336A EP1323853B1 EP 1323853 B1 EP1323853 B1 EP 1323853B1 EP 02360336 A EP02360336 A EP 02360336A EP 02360336 A EP02360336 A EP 02360336A EP 1323853 B1 EP1323853 B1 EP 1323853B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- crimping
- scrapers
- guiding
- setting
- 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.)
- Expired - Lifetime
Links
- 238000002788 crimping Methods 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 16
- 238000005056 compaction Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 14
- 239000004753 textile Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 235000004879 dioscorea Nutrition 0.000 claims 3
- 230000001960 triggered effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- YFXPPSKYMBTNAV-UHFFFAOYSA-N bensultap Chemical compound C=1C=CC=CC=1S(=O)(=O)SCC(N(C)C)CSS(=O)(=O)C1=CC=CC=C1 YFXPPSKYMBTNAV-UHFFFAOYSA-N 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- 230000005032 impulse control Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
Definitions
- the present invention relates to the field of the textile industry, in particular for treating threads by crimping, and relates to a method of crimping of threads.
- the invention also relates to a device for setting work of this process.
- the crimping of textile fibers or threads by using devices called curling boxes is carried out according to a known method.
- This method consists in directing the wires to be curled between two drive rollers which force said wires into a compaction channel.
- This channel of compaction is generally provided at its end opposite to the rollers a check valve to ensure the compaction of the wires to the inside of the curling box.
- the valve or similar retaining device has intended to increase the friction of fibers or threads on the walls of the compacting box to the point where the material to be curled will lose, at its output from the drive rollers, its presentation in longitudinal form to take a wavy presentation generated by the downstream friction of wires on the walls of the curling box.
- the crimp obtained is called primary crimp and this crimp can be very regular, but if the compaction chamber has a volume or unsuitable geometry, the primary crimp will tend to turn into a secondary crimp which will have the effect of compacting the material differently and, therefore, will tend to disappear the crimp regular primary.
- curling boxes use a fluid thermal, namely steam, for the production of all or part of the crimp.
- This vapor is then injected through orifices located on the walls from the compaction chamber so that the material to be crimped tends to be kicked out of the curling box.
- Curling machines implementing such a method are notably known from FR-A-2 652 359 and US-A-5 647 109. In these machines, it is impossible to create and maintain the regular crimp of fibers or yarns, because the geometry of the compacting box and / or the heat treatment system cause its destruction.
- the object of the present invention is to overcome these drawbacks by proposing a method and a device for crimping wires allowing obtaining a perfectly regular crimp, without crimp formation secondary or parasitic.
- the wire crimping process is characterized in that that it consists essentially in passing the wires through a first zone compacting a crimping box, to obtain a regular crimp, then to realize, in a second area having a free space delimited on at least one side thread ribbon, a prefix for regular crimping obtained, as well as a guide of the latter, up to the exit of the box curl, using the prefixing fluid.
- the invention also relates to a device for setting work of this process, in the form of a curling box provided a compaction enclosure comprising drive rollers cooperating with doctor blades and a pre-fixing and wire guiding enclosure crimped, characterized in that the cross-section of the compaction enclosure is adjustable and in that the prefixing and guiding enclosure has a section larger than that of the ribbon of crimped threads obtained, the space or spaces additional delimited around said ribbon being in relation to means for delivering the fixing fluid.
- Figure 1 of the accompanying drawings shows, by way of example, a device for the crimping of fibers or textile threads in the form of a curling box provided with an enclosure of compaction 1 comprising rollers 2 for driving cooperating with doctor blades 3 ( Figures 3 and 4) and an enclosure 5 for fixing and guiding the wires curly 6.
- this device implements a process which essentially involves passing the wires 4 through a first compaction zone of a curling can, to obtain a regular crimp 6, then to perform, in a second zone 5, having a 5 'free space delimited on at least one side of the ribbon of wires, a prefixing regular crimp 6 obtained, as well as guiding of the latter, up to the outlet of the curling can, through the fluid prefixing.
- the adjustment and the initial crimping are carried out by retaining the end of the fibers or threads engaged in the curling box, downstream of the enclosure compaction 1.
- the fibers or threads which pass between the rollers 2 and which are pushed between the doctor blades 3, are first retained in the prefixing and guiding enclosure 5 in order to achieve a crimp initial corresponding to the desired crimp characteristics.
- the duration retaining fibers or yarns for the start of the crimping of a ribbon is determined according to the mechanical properties of the fibers or son and those of the desired crimp and are advantageously listed on a table or abacus allowing rapid adjustment of the curling box for each type of textile fiber or yarn.
- the prefixing of the regular crimp 6 obtained, as well as the guiding of this last, up to the exit of the curling box are made by means of the prefixing fluid which acts on at least part of the section of the crimped ribbon obtained, in a free space of the prefixing and guiding.
- the device which present in the form of a curling box is characterized in that the section of the compaction enclosure 1 is adjustable and in that the enclosure 5 of prefixing and guiding has a section larger than that of the ribbon crimped yarn 6 obtained, the additional space or spaces delimited around of said ribbon 6 being in relation to the means for delivering the fluid fixing.
- the means of adjustment 7 allowing the mutual approximation of the doctor blades 3 is shown at FIG. 4 of the appended drawings in the form of a threaded element with reverse pitch, but may very well be in the form of a pair of cylinders ordered in synchronism or an articulated linkage bringing the scrapers apart and spreading them apart 3.
- the means 8 which is intended to carry out the displacement of the entry doctor blades in the direction of the drive rollers 2 or in the opposite direction of these drive rollers 2, is simply shown in Figure 4 by a center line and can also be either in the form of a screw drive and nut acting on a guide and support means common to the doctor blade 3, either individual and synchronized doctor blades.
- the spacing adjustment of the doctor blades 3 and the adjustment of the latter relative to the drive rollers 2 are performed by a centralized control element synchronizing the two adjustment movements. Indeed, it is necessary to perform simultaneously or almost simultaneously adjusting the opening of the doctor blades 3 and their positioning relative to the drive rollers 2, in order to be able to quickly have an optimum setting of these.
- the compaction enclosure 1 leads to the enclosure 5 of prefixing and guiding the regular crimp 6 obtained, which has a inner cross section greater than that of said crimp 6 and which is provided on its internal faces with means for delivering the fixing fluid, in the form of nozzles or the like, not shown.
- the internal section of the enclosure 5 is arranged so as to delimit on at at least one side of the ribbon of crimped threads 6 obtained a free space 5 ′, of any geometry.
- This space 5 allows an expansion of the fluid of prefixing without the latter exerting strong pressure on the ribbon of wires crimps 6, this pressure being, however, sufficient to guide so dynamic said ribbon in enclosure 5, that is to say to promote its progression in said enclosure towards the exit of the latter on a conveying or receiving device 9 (FIG. 1).
- the internal section of the enclosure 5 can be of the regular polygon type or irregular and delimit a space 5 'only on one side of the ribbon of crimped wire 6 or on two sides of this ribbon.
- the internal section of the enclosure 5 will have a conformation such that spaces 5 'in height slightly less than the height of the ribbon of crimped threads 6 are delimited by on either side of said ribbon 6 to press their edges against the corners of the latter ( Figures 8 to 11).
- the section of the ribbon of crimped yarn can also be adjustable in height by providing, at the doctor blades 3, means of sliding guide movable between said doctor blades, in the direction of their vertical axis.
- a vertical axis of doctor blades which in fact correspond to the direction of the axes of the rollers 2.
- this notion of verticality of the doctor blades is only intended to explain the positioning and movement of means for adjusting the height of the ribbon of crimped threads 6 relative to the width of this ribbon, it being understood that the curling box can as well present an orientation of the axes of the vertical drive rollers, than a horizontal orientation.
- the device is further provided at the end of the prefixing and guiding enclosure 5 opposite to that connected to the compacting enclosure 1, a means 10 for retaining fibers or yarns at the start of a crimping operation.
- This means 10 can advantageously be constituted in the form of a valve (FIG. 5) mounted in front of the outlet of said enclosure 5 and which can be actuated by via a motorization device not shown, the opening and closing is preferably carried out via a programmable controller and / or by a command to manual impulse.
- a motorization device can in particular be in the form of a rotary actuator or of an actuator acting on the axis of the valve by through a lever or even in the form of an electric motor not step by step.
- the programmable controller capable of controlling such a valve is also of a type known to those skilled in the art and can, for example, take into account pre-established digital data by setting learning. So, it suffices, firstly, to realize for each type of product used a prior crimping test, in order to determine the adjustment characteristics enabling values to be obtained desired crimping depending on the title of the product to be treated and the speed of scrolling the wires and plotting this data on a table or chart, to then simply program the machine according to the data of product and final material to be obtained.
- the pre-setting can, for example example, be made by actuating the valve 10 by means of a manual impulse control.
- valve 10 At the start of a wire or fiber crimping operation, the machine starts automatically with valve 10 in the closed position for a predetermined period corresponding to the production of a crimp initial primary corresponding to the crimp to be obtained, then said valve 10 is automatically opened and the crimping operation can continue normally.
- the upper and lower walls of the containment prefixing and guiding 5 can advantageously be equipped with a integrated heating, electric or hot fluid circulation means.
- the transparent wall may be provided, in addition, with a optical means for monitoring the product obtained cooperating with a electronic comparison device.
- a optical means for monitoring the product obtained cooperating with a electronic comparison device Such an installation of opto-electronic surveillance, which uses known means of the skilled person is not described in more detail. This installation allows to carry out checks by comparison with data stored in an electronic memory and, in conjunction with a programmable controller or with a computerized control and central control to act on the operating parameters of the machine.
- the invention it is possible to crimp wires in a curling box with perfect control of the regularity of the crimp, the latter being exposed during part of its passage in the box to curl with a prefixing fluid simultaneously providing guidance dynamic of the ribbon of crimped wires up to the exit of the crimping box, this in using at least one space occupied only by the prefixing.
- the geometry of the enclosure 5 for prefixing and guidance makes it possible to perfectly preserve the primary crimp generated in the compaction chamber 1.
- the invention also allows, by implementation specially ordered during the crimping of the valve 10 forming the means retainer, to achieve an irregular crimp, namely primary and secondary, as is possible with known curling machines currently.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Claims (18)
- Verfahren zum Kräuseln von Textilfasern oder ―fäden in einem Kräuselkasten, der mit einem Verdichtungsraum (1), der mit Rakeln (3) zusammenwirkende Antriebsrollen (2) aufweist, und einem Raum (5) zur Vorfixierung und zur Führung der gekräuselten Fäden (6) versehen ist, dadurch gekennzeichnet, dass das Verfahren im wesentlichen darin besteht, die Fäden (4) eine erste, zur Verdichtung dienende Zone des Kräuselkastens passieren zu lassen, um eine regelmäßige Kräuselung (6) zu erhalten, und dann in einer zweiten Zone (5), die einen Zwischenraum (5') aufweist, der zumindest auf einer Seite von einem Fadenband begrenzt wird, eine Vorfixierung der erhaltenen regelmäßigen Kräuselung (6) sowie eine Führung derselben bis zum Auslass des Kräuselkastens mittels eines Vorfixierungsfluids durchzuführen.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Regelung und die initiale Bildung der Kräuselung durch ein Zurückhalten des Endes der in den Kräuselkasten eingeleiteten Fasern oder Fäden stromabwärts des Verdichtungsraums (1) durchgeführt werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Vorfixierung der erhaltenen regelmäßigen Kräuselung (6) sowie die Führung derselben bis zum Auslass des Kräuselkastens mittels des Vorfixierungsfluids erfolgt, das in einem freien Zwischenraum der Vorfixierungs- und Führungskammer auf zumindest einen Teil des Querschnitts des erhaltenen gekräuselten Bandes einwirkt.
- Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, die in Form eines Kräuselkastens vorliegt, der mit einem Verdichtungsraum (1), der mit Rakeln (3) zusammenwirkende Antriebsrollen (2) aufweist, und einem Raum (5) zur Vorfixierung und zur Führung der gekräuselten Fäden (6) versehen ist, dadurch gekennzeichnet, dass der Querschnitt des Raums (1) zur Verdichtung einstellbar/regelbar ist und dass der Raum (5) zur Vorfixierung und zur Führung einen Querschnitt aufweist, der größer ist als jener des erhaltenen Bandes von gekräuselten Fäden (6), wobei der oder die zusätzlichen Zwischenräume, die um das Band (6) herum abgegrenzt sind, in Beziehung mit den Mitteln zum Liefern des Fixierungsfluids stehen.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Verdichtungsraum (1), der durch Antriebsrollen (2) und durch Rakeln (3) gebildet ist, in seinem Querschnitt durch das Vorsehen von Mitteln (7 und 8) einstellbar/regelbar ist, die einerseits eine gegenseitige Annäherung der Rakeln (3) und andererseits eine Verschiebung des Einlassabschnitts der Rakeln (3) in Richtung hin zu oder weg von den Antriebsrollen (2) erlaubt.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das die gegenseitige Annäherung der Rakeln (3) erlaubende Einstell-/Regelungsmittel (7) in Form eines Gewindeelements mit umgekehrter Steigung oder eines Paares von gleichzeitig betätigten Verstellspindeln oder eines Gelenkgestänges, das die Rakeln (3) aufeinander zu und voneinander weg bewegt, vorgesehen ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Mittel (8), das zur Durchführung der Verschiebung des Einlasses der Rakeln in Richtung der Antriebsrollen (2) oder in Gegenrichtung dieser Antriebsrollen (2) entweder in Form von Schraube und Mutter, die auf ein für die Rakel (3) gemeinsames Führungs- und Haltemittel einwirken, oder von individuellen und synchronisierten Rakelantrieben vorgesehen ist.
- Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Einstellung/Regelung des Abstands der Rakeln (3) und die Einstellung/Regelung derselben in Bezug auf die Antriebsrollen (2) durch ein zentralisiertes Antriebselement erfolgt, das die beiden Einstellungs-/Regelungsbewegungen synchronisiert.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Verdichtungsraum (1) in den Raum (5) zur Vorfixierung und Führung der erhaltenen regelmäßigen Kräuselung (6) mündet, der einen Innenquerschnitt aufweist, der größer ist als jener der Kräuselung (6), und der an seinen Innenflächen mit Mitteln zum Liefern des Fixierungsfluids in Form von Düsen oder dergleichen versehen ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass der Innenquerschnitt des Raums (5) derart ausgebildet ist, dass zumindest auf einer Seite des Bandes von erhaltenen gekräuselten Fäden (6) ein freier Zwischenraum (5') mit einer beliebigen Geometrie abgegrenzt ist.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass der Innenquerschnitt des Raums (5) dem Typ eines regelmäßigen oder unregelmäßigen Vielecks entspricht und einen Zwischenraum (5') nur auf einer Seite des Bandes von gekräuselten Fäden (6) oder auf beiden Seiten dieses Bandes begrenzt.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der Innenquerschnitt des Raums (5) eine Konfiguration derart aufweist, dass Zwischenräume (5') mit einer Höhe, die geringfügig kleiner ist als die Höhe des Bandes von gekräuselten Fäden (6), beiderseits des Bandes (6) abgegrenzt sind, um sich mit ihren Rädern an den Ecken des letzteren abzustützen.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Querschnitt des Bandes von gekräuselten Fäden in der Höhe einstellbar/regelbar ist, indem in Höhe der Rakeln (3) Führungsmittel vorgesehen sind, die in Richtung ihrer vertikalen Achse zwischen den Rakeln verschiebbar sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass an dem Ende des Vorfixierungs- und Führungsraums (5), das dem mit dem Verdichtungsraum (1) verbundenen Ende gegenüberliegt, des weiteren ein Mittel (10) zum Zurückhalten der Fasern oder Fäden zu Beginn eines Kräuselungsvorgangs vorgesehen ist.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass das Mittel (10) in Form einer Klappe ausgebildet ist, die vor dem Auslass des Raums (5) montiert ist und mittels einer Motorisierungsvorrichtung, deren Ansteuerung zum Öffnen und zum Schließen mittels eines programmierbaren Automaten und/oder einer manuellen Antriebssteuerung erfolgt, betätigt werden kann.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die obere und die untere Wand des Vorfixierungs- und Führungsraums (5) mit einem integrierten Mittel zum elektrischen Beheizen oder zum Beheizen durch die Zirkulation eines heißen Fluids versehen sind.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass ferner wenigstens ein Wandabschnitt des Vorfixierungs- und Führungsraums (5) aus transparentem Material vorgesehen ist.
- Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass die transparente Wand femer mit einem optischen Mittel zur Überwachung des erhaltenen Produkts versehen ist, das mit einer elektronischen Vergleichsvorrichtung zusammenwirkt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0116757A FR2833974B1 (fr) | 2001-12-21 | 2001-12-21 | Procede et dispositif de frisage de fils |
FR0116757 | 2001-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1323853A1 EP1323853A1 (de) | 2003-07-02 |
EP1323853B1 true EP1323853B1 (de) | 2004-12-01 |
Family
ID=8870908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02360336A Expired - Lifetime EP1323853B1 (de) | 2001-12-21 | 2002-12-06 | Verfahren und Vorrichtung zum Kräuseln von Fäden |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1323853B1 (de) |
CN (1) | CN1432676A (de) |
DE (1) | DE60202122T2 (de) |
FR (1) | FR2833974B1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7534379B2 (en) * | 2004-06-25 | 2009-05-19 | Celanese Acetate Llc | Process of making cellulose acetate tow |
US7425289B2 (en) * | 2004-06-25 | 2008-09-16 | Celanese Acetate Llc | Process of making cellulose acetate tow |
JP2006120530A (ja) * | 2004-10-22 | 2006-05-11 | Tyco Electronics Amp Kk | 圧接装置 |
CN101838871B (zh) * | 2009-12-28 | 2012-06-13 | 宁波荣溢化纤科技有限公司 | 卷曲机冷却装置、卷曲机及丝条卷曲方法 |
FR2963028B1 (fr) | 2010-07-26 | 2013-05-03 | Superba Sa | Procede et dispositif de texturation de fils pour tapis ou moquette, en amont d'une unite de traitement thermique |
CN116497495B (zh) * | 2023-06-30 | 2023-09-22 | 江苏恒力化纤股份有限公司 | 一种段彩起绒纱及其制备方法和装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT247511B (de) * | 1964-01-22 | 1966-06-10 | Elitex Zavody Textilniho | Stauchkammer einer Maschine zum Kräuseln von Kunstfaserbändern |
NL252137A (de) * | 1964-01-25 | |||
US3587145A (en) * | 1969-06-19 | 1971-06-28 | Bancroft & Sons Co J | Crimping apparatus with heating and cooling cage |
DE1816028C3 (de) * | 1968-12-20 | 1982-06-09 | Vepa AG, 4125 Riehen, Basel | Vorrichtung zum Kräuseln von synthetischen Fadenscharen |
US3636149A (en) * | 1969-12-22 | 1972-01-18 | Ici Ltd | Crimping of yarn |
GB1415655A (en) * | 1972-01-31 | 1975-11-26 | Platt Saco Lowell Ltd | Sutbber-box crimping apparatus |
US3911539A (en) * | 1972-12-29 | 1975-10-14 | Phillips Petroleum Co | Method for crimping synthetic thermoplastic fibers |
GB1555530A (en) * | 1976-09-09 | 1979-11-14 | Ici Ltd | Process for the production of haet set crimped yarn |
DE3631905A1 (de) * | 1986-09-19 | 1988-03-31 | Bayer Ag | Stauchkammerkraeusel und verfahren zur herstellung von gekraeuselten synthetischen fasern |
DE69313957T2 (de) * | 1992-07-30 | 1998-04-09 | Hoechst Celanese Corp | Vorrichtung zum Kräuseln eines Faserstranges und zum Aufbringen von Finish auf den Faserstrang |
DE4320303C1 (de) * | 1993-06-18 | 1995-02-16 | Rhodia Ag Rhone Poulenc | Mehrfachbreiter Faserstreifen sowie ein Verfahren und eine Vorrichtung zu dessen Herstellung |
US5647109A (en) * | 1995-09-26 | 1997-07-15 | American Suessen Corporation | Yarn texturing device including a stuffer box channel with circumferetially closed cross section |
US6134758A (en) * | 1999-03-22 | 2000-10-24 | Wellman, Inc. | Method of producing improved crimped polyester fibers |
-
2001
- 2001-12-21 FR FR0116757A patent/FR2833974B1/fr not_active Expired - Fee Related
-
2002
- 2002-12-06 EP EP02360336A patent/EP1323853B1/de not_active Expired - Lifetime
- 2002-12-06 DE DE2002602122 patent/DE60202122T2/de not_active Expired - Lifetime
- 2002-12-20 CN CN 02157535 patent/CN1432676A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2833974B1 (fr) | 2004-02-13 |
DE60202122D1 (de) | 2005-01-05 |
FR2833974A1 (fr) | 2003-06-27 |
DE60202122T2 (de) | 2005-12-01 |
EP1323853A1 (de) | 2003-07-02 |
CN1432676A (zh) | 2003-07-30 |
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