US3441989A - Method and apparatus for texturing yarn - Google Patents

Method and apparatus for texturing yarn Download PDF

Info

Publication number
US3441989A
US3441989A US632612A US3441989DA US3441989A US 3441989 A US3441989 A US 3441989A US 632612 A US632612 A US 632612A US 3441989D A US3441989D A US 3441989DA US 3441989 A US3441989 A US 3441989A
Authority
US
United States
Prior art keywords
yarn
nip
roll
steam
crimped
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
Application number
US632612A
Other languages
English (en)
Inventor
Robert J Clarkson
Robert Miller
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.)
UNIROYAL HOLDING Inc WORLD HEADQUARTERS MIDDLEBURY CONNECTICUT 06749 A CORP OF NEW JERSEY
Original Assignee
Uniroyal Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uniroyal Inc filed Critical Uniroyal Inc
Application granted granted Critical
Publication of US3441989A publication Critical patent/US3441989A/en
Assigned to UNIROYAL HOLDING, INC., WORLD HEADQUARTERS, MIDDLEBURY, CONNECTICUT, 06749, A CORP OF NEW JERSEY reassignment UNIROYAL HOLDING, INC., WORLD HEADQUARTERS, MIDDLEBURY, CONNECTICUT, 06749, A CORP OF NEW JERSEY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNIROYAL, INC., A NEW JERSEY CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/168—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including drawing or stretching on the same machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to a method and apparatus for texturing thermoplastic yarn.
  • This invention relates to an improved method and apparatus for texturing yarn by jetting the yarn toward a nip.
  • a nip is formed between a pair of arcuate surfaces at least one of which is movable and has a rugose yarn contacting surface to which the yarn does not strongly adhere, i.e. one which will allow the yarn to fall therefrom under substantially its own weight, but which is adapted to advance crimped yarn through the nip as the rugose surface advances.
  • these surfaces are spaced from each other a finite distance sufliciently small to provide a resistance to the longitudinal advance of the yarn and not large enough to lose the compressive force on the yarn as it is hurled by the hot gas jet toward this nip, yet a distance sufliciently great that the yarn driving force generated by the gas acting on the yarn is not lost.
  • Yarn to be textured is introduced into a moving stream of heated gas which is directed toward the nip, and the gas hurls the yarn longitudinally of itself toward the nip to pack the yarn into a chamber partially blocked by the arcuate surfaces, and the gas is vented through vents in a surface past which the yarn advances.
  • the movable surface is advanced toward the nip to carry the yarn through the nip, after which the yarn falls from the nip still in a crimped condition.
  • the yarn is cooled in this crimped condition or, if desired, further heat set, and subsequently wound up.
  • FIG. 1 is a schematic elevational view of an apparatus according to the invention suitable for carrying out the method of the invention
  • FIG. 2 is an enlarged view showing the arcuate surfaces and the delivery tube used in the apparatus of FIG. 1;
  • FIG. 3 is a fragmentary view similar to FIG. 2 showing a modified form of apparatus
  • FIG. 3a is a fragmentary view along the line 3a-3a of FIG. 3, and
  • FIG. 4 is a view illustrating the reheating of the crimped yarn.
  • FIGS. 1 and 2 A first embodiment of texturing apparatus according to this invention is illustrated in FIGS. 1 and 2.
  • FIGS. 3 and 3a A second embodiment of texturing apparatus according to this invention is illustrated in FIGS. 3 and 3a.
  • FIG. 4 illustrates a heat setting step which may be used to treat yarn crimped on either of these two texturing apparatus. The method will be described with reference to these embodiments of apparatus.
  • thermoplastic yarn Y for example, a polypropylene multifilament continuous filament yarn.
  • three yarns Y, Y" and Y" are doubled to make the single larger yarn Y.
  • This yarn Y is delivered to a first pair of godet rolls 10, 11 and thence to a second pair of godet rolls 12, 13.
  • each pair of godet rolls consists of a relatively large roll 10 or 12 and a relatively small roll 11 or 13 with the two rolls in a pair arranged at an axis angle to each other so as to advance yarn in a series of spaced loops about the pair.
  • Yarn Y is wrapped .6 to 8 times about each pair of driven godet rolls, and is advanced from the last pair 12, 13 to a texturing apparatus in accordance with this invention.
  • the undrawn yarn Y is drawn between the two pair of godet rolls.
  • roll 10 is heated to ZOO-270 F. and is rotated at a surface speed of 300 feet per minute, while roll 12, is rotated at a surface speed of 1200 feet per minute to draw the yarn Y four to one between the pairs of rolls.
  • the drawn yarn Y next enters a steam propulsion device indicated generally at 14.
  • This steam propulsion device 14 is of the type disclosed in the aforesaid application.
  • saturated steam at p.s.i. is fed in an annular path past the lower end of a hypodermic needle 27 which projects into a cylindrical cavity 24v in extension 22.
  • extension 22 too is about A thick and preferably slightly less, e.g. 242", for clearance, and in the embodiments shown is rectangular in exterior cross-section except where cut away to provide complementary arcuate surfaces 33, 34, to be described hereinafter.
  • Projection 22 has lower concave faces 33, 34 shaped to arcs substantially complementary to the arcs of the surfaces next to be described.
  • a first, smooth, arcuate surface 35 is the radially outer surface of a segment 36 of a cylindrical metal disc-like member about A" Wide or thick, i.e. measured normal to the plane of the paper in FIG. 2.
  • a second generally arcuate but rugose surface 38 is formed on the radially outer surface of a 6" outer diameter cylindrical roll 39, also about A" wide or thick, i.e. measured normal to the plane of the paper in FIG. 2.
  • segment 36 is .253" thick while roll 39 is .243", the difference providing clearance for roll 39 to rotate between side plates 49, to be described, which are bolted to segment 36.
  • the rugosit-y of surface 38 is formed by 280 48 pitch, 14 /2 pressure angle teeth of .045 depth which are out in from the outer periphery of the cylinder roll 39.
  • gear toothike surfaces are now preferred, other rugose surfaces, such as knurled surfaces, may be employed.
  • the arc of surface 35 may have the same outer diameter as the outer diameter of the gear tooth-like projections on surface 38, i.e., in this embodiment 6 although slightly different diameters may be used, for example, a diameter may be used which is equal to the root diameter on the gear tooth-like surface 38, i.e., 5.91" when a 6" diameter, .045" gear depth roll is employed.
  • Roll 39 is rotatably mounted on the machine frame with its axis substantially parallel to the axis of arcuate surface 35, to be driven about its axis by means (not shown) in the direction indicated by the arrow on FIG. 2 to advance the surface 38 toward and through the nip in the same direction as the yarn is hurled toward the nip.
  • Extension 22 fits into the nip between surfaces 35 and 38 with faces 33 and 34 opposed thereto and closely spaced therefrom.
  • a chamber in which yarn Y may by packed is provided beneath the lower tip of the hypodermic needle and in advance of the line of nearest approach of surfaces 3 5, 38 to each other.
  • surface 35 is fixed in the embodiment shown, in the sense it does not advance toward the nip, it may be moved slightly to enlarge the spacing of the surfaces in a direction normal thereto at the narrowest part of the nip to accommodate the passage of a thicker yarn pack therethrough. In this embodiment this is achieved by bolting segment 36 on a plate 40 which in turn is pivoted about an axis pin 41 mounted on the machine frame. Plate 40 carries lever arm 42 against which an extension 43, fixed to the piston 44 of an air cylinder 45, presses.
  • a suitable arrangement utilizes air under 40 pounds pressure which is admitted to the rear of a 1" diameter piston 44 in cylinder 45 through inlet pipe 46 to urge segment 36 toward roll 39.
  • the extension 43 impinges upon lever arm 42 along a horizontal line passing through the axis of rotation of roll 39 and through the lowermost tip of surface 35 on segment 36 which tip is also disposed substantially at the line of nearest approach of surfaces 35, 38, i.e. at the narrowest part of the nip.
  • this means is adjustable and comprises a fixed, but adjustable, screw stop 47 threaded in fixed nut 64 so stop 47 moves longitudinally of itself toward or away from plate 40 as head 65 is rotated.
  • a pressure pad 48 on plate 40 impinges against stop 47 to limit movement of segment 36 toward roll 39.
  • a suitable minimum gap between surface 35 and the path followed by the outermost faces of the teeth on roll 39 in their rotation is .015" at the line of nearest approach between surface 35 and this path, and a suitable linear peripheral speed of such faces along this path is 220 feet per minute.
  • a suitable minimum spacing between surface 33 and the opposed surface 35 and, between surface 34 and the opposed path travelled by the outermost faces of the teeth on roll 39 is .025", each, measured in a direction normal to the surface 35 or path of travel of the teeth on roll 39, as the case may be.
  • the true center of segment 36 is on the same horizontal line as the center of roll 39, and the lowermost tip of surface 35 lies from /2" to V below the lower end of extension 22.
  • the width, or thickness, of surfaces 35 and 38 which determines the width of the nip is kept relatively small, desirably less than 1 inch, and the above described A" width gives excellent results.
  • the sides of the nip are closed by a pair of side plates bolted to the segment 36.
  • One of these side plates 49 is seen in FIG. 2 at the front of the device and it is duplicated by a second, not visible in the drawing, which is bolted to segment 36 at the rear of the device.
  • the side plates bridge the nip between the two surfaces 35, 38 from at least as far down as, or slightly below, the line of nearest approach of the surfaces to each other, and at least as far thereabove as, or slightly above, the point at which the interior of extension 22 is first in communication with the nip which occurs where the cuts made to form surfaces 33, 34 first intersect cavity 24.
  • these side plates 49 closely embrace the sides of segment 36, roll 39 and extension 22 and close the sides of the nip.
  • a series of holes 50 are drilled through the plates 49 at the nip so that steam from the jet device 14 is vented to the atmosphere through these holes in the fixed plates 49 after escaping from the interior of projection 22.
  • 16 holes 50 are drilled through side plates 49 in three side-by-side columns of 9, 5 and 2 respectively, which open into the nip as shown, to vent the space between the surfaces 35, 38 above their line of nearest approach to each other.
  • FIG. 3 of the drawing A modified device is shown in FIG. 3 of the drawing. This device is generally identical to the device shown in FIG. 2 excepting that the side plates 49' in the FIG. 3 device are imperforate and the surface 35' in segment 36' has a number of steam escape holes 51 drilled radially therethrough adjacent the nip.
  • holes 51 are drilled through segment 36 in three side-by-side columns extending over approximately the lowermost /2" of arc of surface 35' of segment 36 with 6 holes in the two outside columns (as viewed from a position spaced from surface 35' in a direction normal thereto) and five holes in a middle column vertically staggered between horizontally aligned holes in the two outside columns.
  • Rolls 38 or 38' are driven to rotate toward the nip, counterclockwise as viewed in FIGS. 2 and 3, respectively to carry yarn through the nip. From the nip the yarn in a crimped condition falls under substantially no tension greater than that created by its own weight onto a bent sheet metal trough 52 which directs the same into an annular cross-section chamber in cylindrical can 53 carried on a turntable 54 rotatable about the center of can 53 by drive means (not shown). Turntable 54 is carried by driven shaft 55 journaled in hearings in stand 57. A rod 58 is fixed to trough 52 and, reciprocates back and forth, toward the viewer in FIG. 1, to, distribute the crimped yarn in a uniform manner within can .53 as the can rotates with turntable 54.
  • the yarn as it is delivered from the nip to be collected in can 53 is in the form of a somewhat ribbon-like band in which the crimped yarn follows a somewhat chevron shaped path from side to side of the band.
  • the width of the band is substantially equal to the width of the surfaces 35, 38 between the plates 49; in embodiments where these surfaces are A" wide the ribbon-like band is approximately A" wide and generally is a single yarn strand thick.
  • the can 53 has louvered sides and a central hollow pipe or tube 60 passing from its top to its bottom.
  • a perforated false bottom 61 is held spaced slightly above the true bottom of can 53 by spacers 62, 62 and tube 60 has perforations therethrough communicating with the space between the perforated false bottom 62 and the true bottom of can 53.
  • the yarn received from the nip is collected in a mass 63 in the can 53.
  • saturated steam is used in the texturing jet at the delivery speeds discussed above, the yarn is still at an elevated temperature as it is delivered from the nip. Conveniently it may be cooled, still in substantially the crimped condition in which it is received from the nip, while still in the can 53.
  • the yarn may be received on a belt or any other suitable device where it may be cooled to set the crimp to the extent desired before being pulledout under slight tension as disclosed in the aforesaid copendin-g application.
  • the can 53 may be removed from the turntable 54 and transported to a heating area where a tube 64 is placed in the central pipe 60. Hot air is blown through the tube 64, down the pipe 60 and out the holes in pipe 60 beneath the perforated false bottom 61 to be blown up through the mass of fiber in can 53.
  • hot air at a temperature at least 200 F. is blown through the mass for a period of time of at least one hour to thoroughly heat the fiber after which cool air at room temperature is blown through the mass for at least minutes to cool the fiber beneath its heat forming temperature.
  • hot air at 210-240 F. is blown through the mass for one and onehalf hours to heat the same after which room temperature air is blown through the mass for 15 minutes to cool the same.
  • louvered can has been shown in the drawing, it will be appreciated that a can may be used whose sides are closed all the way to the to and not merely opposite the space between the false and true bottoms, in which case the hot air blown through the mass can escape only through the open upper end of the can.
  • the relative treating conditions- may be varied within limits.
  • the yarn should be fed to the hypodermic needle at a linear speed not less than five times faster than the linear speed of the surface 38 of roll 39.
  • Other thermoplastic yarns for example, nylon, polyester, and cellulose acetate, may be processed on tlhis apparatus, and the process conditions would be modified as appropriate for such yarns.
  • heated gases may be used in place of steam but this is most commonly available in economical form. Whatever gas is used, desirably it should be at an elevated temperature of 212 F. or higher.
  • a metlhod of texturing thermoplastic multi-filament yarn which comprises introducing the yarn to be textured into a moving stream of heated gas, hurling the yarn longitudinally of itself by means of said gas toward the nip of a pair of converging arcuate surfaces at least one of which is movable about the center of its arc, said movable surface being a rugose surface to which the yarn does not strongly adhere, advancing said rugose surface toward said nip, maintaining the surfaces at their nearest approach to each other spaced from each other a finite distance sufliciently small to provide a resistance to the longitudinal advance of the yarn but not larg enough to lose the compressive force on the yarn, packing the yarn into a chamber at such nip, venting the gas from said chamber at such nip through vents in a surface past which the yarn passes, advancing the packed yarn through the nip by means of Said rugose surface, removing said yarn in its crimped condition from said surface under substantially no tension
  • a method according to claim 1 including the step of packing the yarn into a chamber formed at least in part by said surfaces and a pair of side plates at said nip, venting the steam at least in part through fixed vents, and removing the yarn from said surface while under no tension substantially greater than that induced by its own weight.
  • a method according to claim 2 including the step of venting the steam through vents in said side plates.
  • a method according to claim 2 including the step of venting the steam through vents in a fixed one of said arcuate surfaces.
  • a method according to claim 2 including the step of reheating the yarn to above its heat setting temperature and subsequently cooling the same while the yarn is in a condition in which it retains a major part of the crimped configuration it has as it is delivered by said advancing surface.
  • a method of texturing thermoplastic yarns which comprises introducing the yarn to be textured into a moving stream of steam, hurling the yarn longitudinally of itself by means of said stream toward a nip formed by a first arcuate surface and a rotatable roll having 'a rugose surface to which the yarn has no substantial adherence, each said surface toward which the yarn is hurled having a width less than about one inch at the nip and the nip being closed at each side by side plates throughout the nip zone toward which the yarn is hurled, packing the yarn into a chamber at said nip, venting the steam from the nip away from said roll, rotating said roll to advance its rugose surface through the nip in the direction of yarn advance therefonward and to carry the yarn through the nip, maintaining said surfaces at their nearest approach to each other spaced from each other a finite distance less than that at which longitudinal compressive force on the yarn is lost, dropping the crimped yarn from said ni
  • a method according to claim 6 including the step of reheating the yarn to above its heat setting temperature and subsequently cooling the same while the yarn is still in substantially the crimped condition in which it 'was collected.
  • a method of texturing polypropylene yarn according to claim 10 in which the crimped yarn is reheated by blowing air at least 200 F. through a mass of the yarn for at least one hour and subsequently cooled by blowing air at substantially room temperature through the mass of yarn for at least 10 minutes.
  • Apparatus for texturing yarn comprising a pair of arcuate surfaces arranged to form a nip therebetween, at
  • said surfaces being movable about the center of its are and having a rugose surface to which the yarn does not strongly adhere, said surfaces at their nip being spaced a finite distance apart but not far enough to lose the compressive force on a yarn to be passed therethrough, a gas jet device projecting into said nip in close proximity to said surfaces through which yarn may be hurled toward said nip to crimp the same, means closing said nip at each side of said surfaces, fixed means venting the gas from said nip, means to advance said rugose surface toward the nip in the direction of yarn advance thereto to advance the crimped yarn through the nip, and receiving means beneath the nip to receive the crimped yarn as it falls from said nip under substantially its own weight.
  • Apparatus in accordance with claim 14 including means to receive a container positioned beneath said nip in which the crimped yarn may be collected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US632612A 1967-04-21 1967-04-21 Method and apparatus for texturing yarn Expired - Lifetime US3441989A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63261267A 1967-04-21 1967-04-21

Publications (1)

Publication Number Publication Date
US3441989A true US3441989A (en) 1969-05-06

Family

ID=24536228

Family Applications (1)

Application Number Title Priority Date Filing Date
US632612A Expired - Lifetime US3441989A (en) 1967-04-21 1967-04-21 Method and apparatus for texturing yarn

Country Status (5)

Country Link
US (1) US3441989A (OSRAM)
BE (1) BE713837A (OSRAM)
FR (1) FR1562456A (OSRAM)
LU (1) LU55917A1 (OSRAM)
NL (1) NL6805681A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157604A (en) * 1977-11-18 1979-06-12 Allied Chemical Corporation Method of high speed yarn texturing
US10792155B2 (en) 2017-10-19 2020-10-06 Howmedica Osteonics Corp. Threaded insert for implant
US20250083924A1 (en) * 2020-08-06 2025-03-13 Columbia Insurance Company Methods And Devices For Transporting Yarn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435891A (en) * 1941-06-24 1948-02-10 American Viscose Corp Method and apparatus for crimping textile fibrous material
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
US3156028A (en) * 1958-06-03 1964-11-10 Du Pont Process for crimping textile yarn
US3363041A (en) * 1964-06-09 1968-01-09 Uniroyal Inc Method of jet crimping for texturing thermoplastic yarn
US3367005A (en) * 1964-06-09 1968-02-06 Uniroyal Inc Apparatus for crimping and texturizing yarn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435891A (en) * 1941-06-24 1948-02-10 American Viscose Corp Method and apparatus for crimping textile fibrous material
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
US3156028A (en) * 1958-06-03 1964-11-10 Du Pont Process for crimping textile yarn
US3363041A (en) * 1964-06-09 1968-01-09 Uniroyal Inc Method of jet crimping for texturing thermoplastic yarn
US3367005A (en) * 1964-06-09 1968-02-06 Uniroyal Inc Apparatus for crimping and texturizing yarn

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157604A (en) * 1977-11-18 1979-06-12 Allied Chemical Corporation Method of high speed yarn texturing
US10792155B2 (en) 2017-10-19 2020-10-06 Howmedica Osteonics Corp. Threaded insert for implant
US20250083924A1 (en) * 2020-08-06 2025-03-13 Columbia Insurance Company Methods And Devices For Transporting Yarn

Also Published As

Publication number Publication date
NL6805681A (OSRAM) 1968-10-22
LU55917A1 (OSRAM) 1968-07-11
BE713837A (OSRAM) 1968-10-18
FR1562456A (OSRAM) 1969-04-04

Similar Documents

Publication Publication Date Title
US2874443A (en) Method and apparatus for crimping yarn
US3566451A (en) Process for widening and loosening continuous artificial fiber
US3105349A (en) Method and apparatus for producing novelty yarn
US5104367A (en) Pinned rollers and process for manufacturing fibrillated film
US3781949A (en) Process and apparatus for jet-texturing yarn at high speed
US4736578A (en) Method for forming a slub yarn
US3438101A (en) Process and apparatus for texturizing yarn
US2874444A (en) Production of curly yarn
US6438934B1 (en) Apparatus and method for fabrication of textiles
US3363041A (en) Method of jet crimping for texturing thermoplastic yarn
US3665567A (en) Yarn rebound texturing apparatus and method
US3372446A (en) Jet crimping and texturizing apparatus
US3441989A (en) Method and apparatus for texturing yarn
US3503100A (en) Method of processing large denier tow
US6701704B2 (en) Processing textile materials
US2983026A (en) Method for producing crimped fiber
US4133087A (en) Method and apparatus for texturizing continuous filaments
US3311961A (en) Process for treating filamentary material
US3644968A (en) Apparatus for relaxing yarns
US5054173A (en) Method and apparatus for the enhanced crimping of multifilament yarn
US3895420A (en) Process for crimping filaments and yarns
US4074405A (en) Apparatus for texturizing yarn
US4030169A (en) Method and apparatus for treating yarn
US2495053A (en) Drying of yarns and the like
US3885278A (en) Apparatus for texturing yarn

Legal Events

Date Code Title Description
AS Assignment

Owner name: UNIROYAL HOLDING, INC., WORLD HEADQUARTERS, MIDDLE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNIROYAL, INC., A NEW JERSEY CORP.;REEL/FRAME:004475/0274

Effective date: 19851027