EP0046278A1 - Dispositif pour la fabrication de fils multifilaments entrelacés - Google Patents

Dispositif pour la fabrication de fils multifilaments entrelacés Download PDF

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Publication number
EP0046278A1
EP0046278A1 EP81106320A EP81106320A EP0046278A1 EP 0046278 A1 EP0046278 A1 EP 0046278A1 EP 81106320 A EP81106320 A EP 81106320A EP 81106320 A EP81106320 A EP 81106320A EP 0046278 A1 EP0046278 A1 EP 0046278A1
Authority
EP
European Patent Office
Prior art keywords
channel
laval nozzle
nozzle
section
laval
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
Application number
EP81106320A
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German (de)
English (en)
Other versions
EP0046278B1 (fr
Inventor
Gerhard Prof. Dr.-Ing. Egbers
Helmut Dr.-Ing. Weinsdörfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0046278A1 publication Critical patent/EP0046278A1/fr
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Publication of EP0046278B1 publication Critical patent/EP0046278B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • the invention relates to a device according to the preamble of claim 1 and a method for operating this device.
  • Fixed-point multifilament yarns are yarns that consist of a plurality of endless filaments, which filaments are located at more or less irregular intervals at so-called fixed points (British: interlaces, entangelements; in the German language often also referred to as "knots", although it does are not knots) are confused with each other.
  • These confusion-forming confusions are created in such a way that the filaments pass through a channel which prevents them from excessive lateral deflection and in which channel they are acted upon by at least one gas jet in such a way that the filaments are swirled with one another and thereby result in the fixed points in the yarn, the filaments running essentially parallel to one another between these fixed points.
  • the fixed points serve to give the filaments of the multifilament yarn sufficient cohesion (thread closure) for further processing.
  • Filament is understood to mean a filament spun from a nozzle hole (also called fibril (in Switzerland), capillary, filaments or continuous fiber).
  • This cohesion of the filaments of the multifilament yarn may be necessary for various reasons, for example in order to prevent the filaments from spreading too far apart due to electrostatic charges or to prevent the yarn from splitting and damaging the yarn during weaving or for other reasons associated with further processing, in particular to make certain further processing possible at all.
  • the material of the filaments can be conventional materials that are common in textile multifilament yarns (chemical continuous yarns). It is about. to materials such as those used to manufacture the "continuous chemical fibers”.
  • filaments In line with Anglo-American usage, chemical filament fibers are now mostly referred to as filaments.
  • the filaments can therefore in particular consist of uncrimped or, if appropriate, also textured (crimped) synthetic high polymers (for example polyester, polyamide, polyacrylic, etc.) or of regenerated fiber materials (for example viscose, copper or acetate synthetic silk) or the like. Other fiber materials are also possible.
  • the fixed point density is lower in the known devices at medium to high filament feed speeds, the higher the feed speed of the filaments.
  • several blowing nozzles per channel were previously provided, but this made it possible to increase the fixed point density only insignificantly, despite the greatly increased compressed air consumption.
  • blowing nozzle is a Laval nozzle, the jet direction of which is directed obliquely or perpendicular to the longitudinal direction of the channel.
  • this device can achieve considerably higher fixed point densities than the known devices of this type at high filament feed speeds.
  • the one flowing out of the Laval nozzle can preferably be used Gas jet have supersonic speed.
  • particularly high fixed point densities can be achieved at high feed speeds of the filaments, so that it is possible to work with higher feed speeds of the filaments than before.
  • the gas jet blown out by the Laval nozzle can still achieve relatively high fixed point densities even in the subsonic speed range, so that in many cases it is even sufficient to operate the Laval nozzle in the subsonic speed range.
  • the compressed gas can preferably be air, but other gases can also be used, preferably water vapor or possibly a gas that physically and / or chemically influences the multifilament yarn. If necessary, an inert gas, for example nitrogen, can also be used.
  • the device according to the invention makes it possible to use higher filament feed speeds than previously possible, it can also be used in processes in which the known devices could not be used successfully because of high filament feed speeds, e.g. in so-called "rapid spinning", in which so-called POY yarns are produced. With this rapid spinning, the filaments are immediately pre-oriented immediately after melt spinning, so that the later drawing can be correspondingly low.
  • the fixed points produced by the device according to the invention in the multifilament yarn have very good cohesion, so that the fixed point multifilament yarn can be subjected to heavy loads during further processing.
  • Another important advantage of the device according to the invention is that the filaments can still be relatively taut when passing through the intermingling unit, even at high feed speeds. This further extends the possible uses of the device according to the invention.
  • the gas jet generated by the Laval nozzle on the wall surface of the channel to which it is directed is split into two main swirling currents or vortex currents rotating in opposite directions. This is easily achieved by designing the Laval nozzle so that the diameter of the gas jet generated by it at the point of entry into the channel is significantly smaller than the diameter of the channel, so that the gas jet first flows between the filaments and then at the is split into two oppositely rotating main swirl currents by the wall surface of the channel acted upon by it.
  • Devices according to the invention can be integrated in machines and systems which serve for the production and / or processing of multifilament yarns or can also be provided on a machine which only serves to produce fixed-point multifilament yarns and which can preferably have a large number of such devices.
  • the individual multifilament bundle can preferably be untwisted, i.e. its filaments do not yet have any mutual cohesion caused by twisting.
  • a multifilament bundle entering the intermingling unit has such a small twist that it does not prevent the formation of the fixed points with a sufficiently high fixed point density.
  • Such twisted or untwisted multifilament bundles are also known as multifilament yarns.
  • the cross section of the channel of the swirling unit can preferably be approximately constant over its length. However, in some cases it is also expedient to change the cross section of the channel along its length, preferably to widen it continuously or stepwise in the running direction of the filaments. Narrowing (chicaning) of the canal and / or local widening can also result in minor advantages in some cases.
  • the channel can preferably have a straight curvature or, in special cases, also a weak curvature.
  • the ratio of the diameter of the narrowest cross section of the Laval nozzle to that diameter of the channel of the swirling unit, which is measured perpendicular to the longitudinal center axis of the Laval nozzle is 1: 5 to 2: 3.
  • the peripheral wall of the channel can preferably be closed except for the inflow openings for the gas jet or jets.
  • the circumference of the duct is provided with small air passage openings in order to influence the flow conditions in the duct.
  • the filaments into the channel can be provided with a side slit which can be blocked for operation and which can be opened and closed for example by means of a rotatable sleeve.
  • the Laval nozzle can be of any suitable configuration.
  • its nozzle section which widens in cross section and in which supersonic speed can arise, can be approximately frustoconical.
  • the opening angle of this frusto-conical nozzle section which continuously widens in cross section, can expediently be 1 to 10 °, preferably 3 to 7 °. It comes other designs of the expanding nozzle section of the Laval nozzle may also be considered.
  • the compressed gas flowing through it must first be accelerated to the speed of sound by reducing the cross-section before it receives supersonic speed.
  • the Laval nozzle can preferably be arranged such that its outlet mouth forms the inlet opening in the peripheral wall of the channel for the gas jet flowing out of it.
  • the Laval nozzle is arranged in such a way that it blows the gas jet freely into the channel through a hole in its peripheral wall.
  • the inflow opening for the gas jet present in the peripheral wall of the channel can preferably extend over 0.2 to 0.5 times the circumference of this channel.
  • the cross section of the gas jet flowing through this inflow opening is expediently smaller than the cross section of this inflow opening.
  • the inner peripheral surface of the channel of the swirling unit can preferably be non-circular, cylindrical form, since circular cross-section turned out to be less good, although circular cross-sections can still produce useful results in some cases. Designs of the inner circumferential surface of the channel have proven to be particularly favorable, which can lead to the above-mentioned splitting of the gas jet into two main swirl currents rotating in opposite directions to one another.
  • the circumferential half of the channel opposite the Laval nozzle has an approximately rectangular cross section or that this circumferential half has a central, convex bulge towards which the longitudinal center axis of the Laval nozzle is directed.
  • the circumferential half of the channel which has the inflow opening for the gas flow can preferably have an approximately semicircular or rectangular cross section.
  • the rapid spinning system 10 has a melt spinning nozzle 11, a single filament 12 being spun from each nozzle hole of this spinning nozzle 11. Pass through these filaments 12 summarizing a multifilament bundle 13 which has no rotation, a preparation device 18 'in which a preparation (spin finish) is applied to it, for example a preparation which counteracts the electrostatic charge and / or improves its lubricity, etc.
  • This multifilament bundle 13 runs at a high feed rate to a swirling unit 14 and through its straight channel 15.
  • the multifilament bundle 13 is subjected to an air flow which preferably has supersonic speed, as a result of which the filaments 12 are intermingled to form fixed points 16 (FIG. 7A, FIG. 7C) which occur at more or less irregular, short intervals.
  • the fixed-point multifilament yarn 13 ′ produced in this way then runs through a thread guide 18 to a package winding device 17, where it is wound up to a package 19.
  • Fig. 7 A shows an electrostatically charged fixed point filament yarn 13 ', which after a by means of a swirling unit 14 according to the Fig. 2-4 produced original fixed point multifilament yarn was drawn.
  • the filaments 12 forming it are spread in the intermediate areas 19 'between adjacent fixed points 16, so that one can clearly see that the filaments 12 are not connected to one another in these intermediate areas 19'.
  • the filaments at the fixed points 16 are connected to one another and
  • FIG. 7C shows an example of such a fixed point 16 drawn according to a microscope image.
  • the filaments 12 obviously do not form loops (loops) at this fixed point 16, nor any protruding loops, but cross only with a snake-shaped laying - within the fixed point 16.
  • the filaments 12 lie approximately in each intermediate region 19 'between two adjacent fixed points in the case of a non-twisted fixed-point multifilament yarn 13', if this is not electrostatically charged parallel to each other.
  • the thickness of the fixed point multifilament yarn 13 ' hardly differs in this intermediate region 19' from the thickness of the fixed points 16, so that the fixed points 16 are often barely recognizable or can only be seen when viewed under a microscope.
  • the channel 15 of the swirling aggregate 14 according to FIGS. 1-4, which forms a compact cuboid body, is cylindrical with that Fig. 4 clearly visible non-circular cross-section.
  • a Laval nozzle 20 opens into this channel 15 approximately at the level of its longitudinal center.
  • the unit 14 consists of two screwed together. bound, rigid, one-piece parts, namely the main part 21 containing the Laval nozzle 20 and the cover 22.
  • the Laval nozzle 20 is connected via a compressed air line 23 containing a pressure reducing valve 25.
  • the feed pressure of the Laval nozzle 20 can be adjusted differently by means of the pressure reducing valve 25.
  • the two essentially cuboid parts 21, 22 of the swirling unit 14 can be made of rigid metal and lie tightly against one another on a flat butt joint 26 under pressure.
  • a circumferential half of the straight channel 15 is embedded as a straight channel 29, 29 'of constant cross section.
  • the trough 29 of the main part 21 has a semicircular cross section in this exemplary embodiment and the trough of the cover 22 has an approximately M-shaped cross section.
  • the channel 15 formed by these two channels 29, 29 ' has a longitudinal central plane of symmetry 30, into which its longitudinal central axis falls and which passes through the convex projection 28 of the circumferentially M-shaped circumferential half 29' of the channel 15 projecting into the channel 15 and is also a longitudinal center plane of symmetry of the Laval nozzle 20.
  • the inlet section 31 is not drawn to scale in FIG. 4.
  • the largest diameter d 3 of the inlet section 31 was 8.4 mm.
  • the nozzle section 32 does not protrude beyond the circumferential wall of the channel 15 and its outlet opening extends approximately 0.35 times the circumference of the channel 15.
  • a supersonic flow in the form of a sharply focused beam 38 the diameter of which can be operated is significantly smaller than the diameter of the outlet mouth of the continuously widening nozzle section 32.
  • the cross section of the channel 15 is drawn to scale in FIG. 4 according to a swirling unit 14 examined in the experiment. Its through knife in the plane of the butt joint 26 was 3 mm.
  • the opening angle c 1 of the widening nozzle section 32 of the Laval nozzle 20 was approximately 6 ° in this device investigated in the experiment according to FIGS. 2-4.
  • the length L of the widening nozzle section 32 was approximately 9 mm.
  • the diameter of the circular inlet opening of the nozzle section 32 was approximately 1.6 mm.
  • the length of the channel 15 was 35 mm in a first test model and 25 mm in a second test model with the Laval nozzle 20 unchanged.
  • a compressor with a pressure of 10 bar was used as the compressed air source 24.
  • this pressure was reduced to about 2 to 2.5 bar by means of the pressure reducing valve 25, ie that this was the feed pressure of the Laval nozzle 20.
  • the supersonic air flow caused by this caused the multifilament bundle to break. 13 and yarns 13 '.
  • the pressure of the compressed air flowing into the Laval nozzle 20 was therefore reduced by means of the reducing valve 25 and at a pressure of 1.1 bar the air jet from the Laval nozzle flowed out at subsonic speed and the multifilament bundle 13 and yarn 13 'became no longer damaged by this air flow, but good fixed point multifilament yarns 13 'with relatively high fixed point densities were created.
  • the multifilament yarn stood in channel 15 under a thread tension of 8 cN. At a feed speed of the yarn 13 'of 1000 m / min there was an average fixed point density reached by 51 / meter.
  • a feed speed of the yarn 13 'of 1000 m / min there was an average fixed point density reached by 51 / meter.
  • a feed pressure of 1.5 bar only fixed point densities of 20 / meter
  • a feed pressure of 3 bar Fixed point densities of 41 / meter can be achieved, and this despite the higher feed pressure and the resulting higher compressed air consumption and further increases in the feed pressure did not result in a significant increase in the fixed point density.
  • a cover 22 which contains no channel at all, so that when it is attached to the main part 21 of the unit according to FIGS Floor.
  • the covers 22 according to FIGS. 5 B, 5 C and 5 F have channels 29 'of rectangular cross-section of different depths, so that the cross-section of each channel produced with such a cover 22 and the main part 21 according to FIGS. 2-4 is composed of two cross-section halves together, one of which is semicircular and the other rectangular.
  • the "M" -shaped cross-sectional profile is angular.
  • the multifilament yarn can cause considerable wear on the circumferential wall of the channel 15, in particular on the wall region opposite the Laval nozzle 20.
  • a bottom plate 34 made of wear-resistant hard material, hard metal or oxide ceramic is used in the cover 22 according to FIG. 5 F in the groove 29 '. It is also possible to produce the cover 22 as a whole from wear-resistant hard material, hard metal or oxide ceramic.
  • the main part 21 of the swirling unit 14 can also consist at least partially of such highly wear-resistant materials.
  • the channel 29 forming the circumferential half of the channel 15 has the head containing the Laval nozzle 20 part 21 rectangular cross section. It is also possible to combine this main part 21 of FIG. 6 with other lids, for example with the lids 22 according to FIGS. 2 and 5 A-5 F.
  • the laval nozzle 20 according to FIGS. 2-4 can also be replaced by a laval nozzle of other suitable designs, preferably by a laval nozzle, the starting portion of which leads to the widening nozzle portion 32 and becomes gradually degressive in the downstream direction tapered to the nozzle section 32, as is customary in the known Laval nozzles.
  • the sharply bundled supersonic air jet 38 flowing out of the Laval nozzle 20 can split into two oppositely rotating, roughly equal swirl main flows on the circumferential wall half of the channel 15 opposite the Laval nozzle 20.
  • the longitudinal central axis of the Laval nozzle 20 is approximately perpendicular to the section cut by it ten, straight longitudinal center axis of the channel 15 and the longitudinal center plane of symmetry of the Laval nozzle 20 is also a longitudinal center plane of symmetry of the channel 15.
  • the longitudinal center axis of the Laval nozzle 20 is approximately perpendicular to the section cut by it ten, straight longitudinal center axis of the channel 15 and the longitudinal center plane of symmetry of the Laval nozzle 20 is also a longitudinal center plane of symmetry of the channel 15.
  • the longitudinal center symmetry plane 30 of the Laval nozzle 20 is directed approximately perpendicular to the longitudinal center axis of the channel 15, so that the angle a shown in FIG. 2 is approximately 90 °.
  • this angle ⁇ can preferably be 60-90 °.
  • the angle a can be provided at an obtuse angle in special cases, preferably when several Laval nozzles open into the channel, with this angle ⁇ being greater than 90 ° in one of these Laval nozzles and in the other nozzle or nozzles this angle a can be provided approximately 90 ° or less than 90 °.
  • the channel 15 It is also expedient to give the channel 15 a relatively small diameter, preferably a few millimeters.
  • This channel 15 prevents the filaments from excessive side evasive. and also serves to direct the gas flow. wherein it can preferably be designed such that it splits it into two main swirling currents rotating in opposite directions at the injection site. Depending on the blow-in conditions and the like, each of these two main swirl flows can then flow from the point of origin to the same or unequal proportions in both axial directions of the channel or, if appropriate, only in one axial direction.
  • the cut-out Laval nozzle 20 is incorporated into the cuboid-shaped main body 40 of a swirling unit, which is shown only partially and broken and partially cut away Channel 15 opens into this channel 15 through which the multifilament bundle with swirling passes to the multifilament yarn.
  • This main body 40 is penetrated by a circular cylindrical through bore 42 running perpendicular to the image plane and in it a cylindrical rotating body 43 in the form of a straight pin is rotatably supported with very little plain bearing play.
  • a continuous longitudinal groove 44 is incorporated, in which a hard metal rod 45 with a rectangular cross section is inserted to form the flat longitudinal rear wall 46 of the channel 15, so that the peripheral section of the channel 15 located in this rotating body 43 consists of its flat rear wall 46 and the two flat, mutually parallel, perpendicular to the rear wall 46 side walls 47 and the remaining circumference of the channel is formed by the relevant peripheral portion of the through hole 42, in which the outlet mouth 41 of the Laval nozzle is located.
  • the rigid main body 40 is offset by 90 ° with respect to the longitudinal axis of the Laval nozzle a continuous side slot 49 is arranged, which serves to thread the multifilament bundle from the outside into the channel 15, for which purpose the rotating body 43 can be pivoted clockwise by about 90 ° from the fully extended position, in which angular position of the rotating body 43 then that in the rotating body 43 located channel area is open to the side slot 49, so that the multifilament bundle can be threaded laterally into the channel 15. By pivoting the rotating body 43 through 90 °, the operating position of the channel 15 then occurs.
  • This return of the rotating body 43 into its operating position can be brought about in this preferred exemplary embodiment by means of a cylinder 52 having a piston 50 with a piston rod 51, the piston rod 51 being attached to a lever 53 fixedly arranged on one end side of the rotating body 43 by means of a into an elongated hole 54 of the Lever 53 engaging driver 55 is articulated.
  • the working space 56 of the cylinder 52 which in this embodiment is single-acting, is connected via a compressed air branch line 23 'to the compressed air supply line 23 to the Laval nozzle 20 downstream of a shut-off valve, not shown.
  • the rotating body 43 In order to thread a multifilament bundle into the channel 15, the rotating body 43 is rotated manually by means of the lever 53 into the angle serving to thread the multifilament bundle position. If the compressed air supply to the Laval nozzle 20 is then opened in time after threading, then compressed air is hereby also introduced into the working space 56 of the cylinder 52, which moves the piston 50 into the position shown, so that the rotary body 43 thereby opens the compressed air supply to the Laval nozzle 20 is automatically rotated from the threading position into its operating position. In operation, as already described, the air jet flowing out of the Laval nozzle in channel 15 splits into two mutually rotating swirl flows.
  • the longitudinal rear wall 46 'of the channel 15 is not flat, but rather slightly concave.
  • the radius of curvature of the cross-sectional contour of this rear wall 46 'of the channel 15 is greater than 3 mm, preferably considerably greater than 3 mm.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP81106320A 1980-08-18 1981-08-13 Dispositif pour la fabrication de fils multifilaments entrelacés Expired EP0046278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT4215/80 1980-08-18
AT421580 1980-08-18

Publications (2)

Publication Number Publication Date
EP0046278A1 true EP0046278A1 (fr) 1982-02-24
EP0046278B1 EP0046278B1 (fr) 1984-09-12

Family

ID=3561142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106320A Expired EP0046278B1 (fr) 1980-08-18 1981-08-13 Dispositif pour la fabrication de fils multifilaments entrelacés

Country Status (5)

Country Link
US (1) US4535516A (fr)
EP (1) EP0046278B1 (fr)
JP (1) JPS57501190A (fr)
DE (1) DE3166034D1 (fr)
WO (1) WO1982000668A1 (fr)

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Publication number Priority date Publication date Assignee Title
US4993130A (en) * 1988-09-08 1991-02-19 Basf Corporation Continuous high speed method for making a commingled carpet yarn
US4894894A (en) * 1986-08-12 1990-01-23 Basf Corporation Continuous high speed method for making a commingled carpet yarn
US5040276A (en) * 1986-08-12 1991-08-20 Basf Corporation Continuous high speed method for making a commingled carpet yarn
US5434003A (en) * 1992-04-16 1995-07-18 Alliedsignal Inc. Entangled polyamide yarn
JP3274138B2 (ja) * 1992-10-13 2002-04-15 アライド−シグナル・インコーポレーテッド 絡み合った高強度ヤーン
EP0957189A2 (fr) * 1995-08-23 1999-11-17 Maschinenfabrik Rieter Ag Procédé et dispositif pour le frisage à boíte de bourrage de câbles de filaments synthétiques
DE19605675C5 (de) * 1996-02-15 2010-06-17 Oerlikon Heberlein Temco Wattwil Ag Verfahren zum aerodynamischen Texturieren sowie Texturierdüse
TW538153B (en) 1998-03-03 2003-06-21 Heberlein Fibertechnology Inc Process for air-jet texturing of frill yarn and yarn-finishing device and the application thereof
EP1207226B1 (fr) * 1998-03-30 2003-06-04 Toray Industries, Inc. Dispositif de traitement d'un fil par un fluide et fil constitué de multifilaments entrelacés
JP3684899B2 (ja) * 1999-01-20 2005-08-17 株式会社愛機製作所 圧縮流体処理ノズル
TW503272B (en) 1999-10-06 2002-09-21 Heberlein Fibertechnology Inc Apparatus for intermingling multifilament yarns
DE19947894C1 (de) * 1999-10-06 2001-03-29 Akzo Nobel Nv Vorrichtung zum Verwirbeln von Multifilamentgarnen
CN102304798A (zh) * 2011-08-29 2012-01-04 江苏昊星化纤纺织有限公司 一种移动式预交络器

Citations (4)

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US3389444A (en) * 1965-11-15 1968-06-25 Eastman Kodak Co Apparatus for entangling multifilament yarns
DE1900325A1 (de) * 1968-01-05 1969-07-31 Eastman Kodak Co Mehrfaediges Garn,das Verfilzungen der Faeden aufweist,sowie Vorrichtung zu seiner Herstellung
US3750242A (en) * 1971-06-30 1973-08-07 Celanese Corp Yarn compacting apparatus
DE2840177A1 (de) * 1978-09-15 1980-03-27 Karlsruhe Augsburg Iweka Verwirbelungsduese

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US3167847A (en) * 1961-11-28 1965-02-02 American Enka Corp Treatment of multi-filament yarn
US3237269A (en) * 1963-09-26 1966-03-01 Du Pont Yarn bulking jet
US3262179A (en) * 1964-12-01 1966-07-26 Du Pont Apparatus for interlacing multifilament yarn
GB1155062A (en) * 1965-09-29 1969-06-18 Courtaulds Ltd Apparatus for the production of fancy yarn
US3605397A (en) * 1968-02-15 1971-09-20 Ppg Industries Inc Expanded fiber glass strand
US3824656A (en) * 1971-12-30 1974-07-23 Neumuenster Masch App Apparatus for crimping of filamentary materials
US3958310A (en) * 1973-03-05 1976-05-25 Rhone-Poulenc-Textile Method for interlacing filaments of multifilament yarns
IT1093498B (it) * 1977-03-30 1985-07-19 Toray Industries Metodo ed apparecchio per intreociare un filo a molti filamenti
US4251904A (en) * 1978-11-08 1981-02-24 Toray Industries, Inc. Yarn treating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389444A (en) * 1965-11-15 1968-06-25 Eastman Kodak Co Apparatus for entangling multifilament yarns
DE1900325A1 (de) * 1968-01-05 1969-07-31 Eastman Kodak Co Mehrfaediges Garn,das Verfilzungen der Faeden aufweist,sowie Vorrichtung zu seiner Herstellung
US3750242A (en) * 1971-06-30 1973-08-07 Celanese Corp Yarn compacting apparatus
DE2840177A1 (de) * 1978-09-15 1980-03-27 Karlsruhe Augsburg Iweka Verwirbelungsduese

Also Published As

Publication number Publication date
US4535516A (en) 1985-08-20
DE3166034D1 (en) 1984-10-18
WO1982000668A1 (fr) 1982-03-04
EP0046278B1 (fr) 1984-09-12
JPS57501190A (fr) 1982-07-08

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