US3353239A - Yarn texturizing method and apparatus - Google Patents

Yarn texturizing method and apparatus Download PDF

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Publication number
US3353239A
US3353239A US427828A US42782865A US3353239A US 3353239 A US3353239 A US 3353239A US 427828 A US427828 A US 427828A US 42782865 A US42782865 A US 42782865A US 3353239 A US3353239 A US 3353239A
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Prior art keywords
tow
rollers
yarn
crimping
crimp
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Expired - Lifetime
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US427828A
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English (en)
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James W I Heijnis
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Akzona Inc
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American Enka Corp
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    • 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 preparation of textile fiber for commercial use and more particularly to an apparatus for texturizing synthetic polymeric yarns, tow, or roving by the stufferbox principle.
  • Such apparatus generally consists of a pair of smooth, cylindrical parallel rollers which coact to grip and feed yarn into a crimping chamber.
  • the chamber generally having a spring-biased or weighted discharge door, forms a substantially closed pressure zone.
  • the action of the rollers in feeding additional yarn into the chamber produces crimps therein which can be effectively set by heat or fluid treatment.
  • the crimped thread is withdrawn from the stuiferbox at a proportionate rate to the in-feed of the rollers.
  • the yarn being fed to the rollers is generally pretreated in a known manner to soften it.
  • Such a method and apparatus for producing crimped, textile fibers from a multi strand yarn, commonly referred to as tow, is disclosed in US. Patent No. 2,575,781.
  • the tow crimping process utilizing the stufferbox principle, is carried out by introducing a plurality of filaments or bundle of fibers in the form of a roving into a stuiferbox crimping device where a permanent crimp may be imparted to the filament bundle.
  • the smooth, cylindrical stuffing rollers force the yarn into the crimping chamber and the yarn is crimped in one direction only.
  • the roving or tow is then withdrawn from the stuiferbox and cut by conventional means into short, staple length.
  • This tow which is provided almost exclusively with a unidimensional crimp in the stulferbox, has the disadvantage in that it produces staple fibers of relatively low bulk and tows which, on being processed into combed slivers, give rise to comparatively poor web formation. Moreover, in the conventional stulferbox apparatus, there often occurs slippage between the tow and the feed rollers. This slippage produces straight, virtually uncrimped lengths of tow, thus decreasing the fiber quality.
  • An object of the present invention is to provide a novel method of producing crimped tows in which uniformity of crimp, high bulk level, and improved web formation can be obtained.
  • Another object of the present invention is to provide a unique stufferbox apparatus for producing crimped tows in which uniformity of crimp, high bulk level, and improved web formation can be obtained.
  • Another object of this invention is to provide a stuiferbox crimping device for crimping tow or roving in which slippage between the tow and the crimping rollers is prevented.
  • An additional object of this invention is to provide apparatus for producing a multidirectional crimp to textile yarn, in the form of a tow, by use of a modified stuiferbox crimping apparatus.
  • a still further object of this invention is to provide a stuiferbox apparatus for crimping a plurality of filaments in the form of a tow in which the tow or yarn bundle can be maintained on the mid-surface of the crimping rollers, thus preventing yarn damage due to frictional contact with the walls of the chamber.
  • the present invention consists of a conventional stuiferbox chamber containing a pair of yarn-gripping rollers for introducing textile tow into the box.
  • the surfaces of the rollers which grip the filamentary material are designed with a curved, ridged, or corrugated profile, the axis of such corrugations extending peripherally about the circumference of the rollers.
  • These curved, yarn-contacting faces grip the tow or roving being fed to the stufferbox chamber and crimp the tow in a direction perpendicular to the crimp produced to the stulferbox chamber as the tow is simultaneously fed into the stulferbox.
  • the larger contact surface of the rollers with the tow prevents the slippage heretofore experienced with fiat con ventional rollers and results in fibers of improved uniformity. Moreover, because of this increased surface area, the external pressure on the stufiing rolls required to effectively grip the yarn can be reduced.
  • the curved profile created in the gripping face of the stufiing rollers is located in such a way that ridges of one stufiing roller are radially opposite grooves of the other roller and extend into the grooves in intermeshing relationship.
  • the coaction of the roller surfaces is such that the distance between the surfaces, at
  • FIG. 1 shows, in section, a conventional stuiferbox crimping apparatus.
  • FIG. 2 a partial section taken along line II----II of FIG. 1, shows the cooperating relationship of the roller surfaces and one particular configuration of the surfaces employing the concepts of the present invention.
  • FIG. 3 shows, in section and on a larger scale, the detail of the pair of ridged stuffer rollers shown in FIG. 2 and is taken along line IIIIII of FIG. 1.
  • FIG. 4 shows, in partial section, a modification of the surface arrangement of the stuffing rollers employing the concepts of the present invention.
  • uncrimped tow 1 is fed through auxiliary guide rollers 2 to crimping and stufiing rollers 3 and 4 which rotate on shafts 5 and 6 in the direction indicated by the arrows.
  • the stufling rollers 3 and 4 are biased in yarn-gripping relationship by conventional means (not shown).
  • the yarn tow is gripped by the surface of the stufiing rollers and is forced, while simultaneously being crimped thereby, into a crimping chamber 7 contiguous with said rollers.
  • the outlet of the crimping chamber is provided with a discharge opening closed by hinged door 8 which is biased closed by means of weight 9.
  • the tow may be preheated in conventional manner prior to its being fed by the crimping rollers to soften the filamentary material, and the crimping chamber may be subjected to heating or cooling to additionally set the crimped yarn.
  • the crimped tow 10 may be withdrawn from the chamber by conventional winding means or by the feed rollers of a device used for cutting fibers from the tow.
  • the particular embodiment of the crimping chamber as well as the tow removing means may be varied in many ways and forms no part of the present invention.
  • FIG. 2 shows in partial section the details of the two crimping rollers 3 and 4.
  • the crimping surfaces are shown in profile and are constructed in the form of ridges 11 and grooves 112. As shown, the axis of the ridges and grooves is perpendicular to the axis of rotation of the stuffing rollers and extends circumferentially about the periphery of the rollers.
  • the tow which is compacted and crimped between the rollers is indicated at 13 and completely fills the space between the rollers.
  • the auxiliary rollers 2 ('FIG. 1), which feed the yarn to the stufiing rollers, may also have similar surface configuration.
  • FIG. 3 shows, in enlarged section, the more detailed construction of the ridges and grooves shown in FIG. 2 and is taken on line III-III (FIG. 1) slightly downstream of the closest point of approach of rollers 3 and 4.
  • the grooves 12 are shown to be curved while the ridges 11 are angular in shape. It has been found that such a surface configuration improves the bite of the roller surfaces and favorably influences the multidirectional crimp produced in the tow.
  • a non-uniform clearance between the roller surfaces is produced by the difference in configuration of the groove and the ridge.
  • the use of nonuniform clearances between the gripping surfaces of crimping gears for longitudinally crimping a filamentary material is disclosed in US. Patent No. 2,090,669.
  • BIG. 4 shows a modified form of rollers 3 and 4 in which the yarn-gripping surfaces are alternately concave and convex and intermesh to form a tow passageway 14.
  • the curvature of the surfaces is designed so as to present a reduced clearance at the edges of the tow passageway. This construction insures that the yarn bundle will not come between the stufiing rollers and the walls 15 and 16 of the crimping chamber.
  • the yarn bundle as it passes between the crimping rollers, is shaped and crimped in a transverse direction to the longitudinal crimp imposed by the wad formation in the main stufferbox chamber.
  • the filaments of the bundle or tow are not individually crimped by the corrugations extending peripherally about the circumference of the rollers, but the tow leaving the stufiFerbox is provided with a greater degree of bulk and a more cohesive web may be formed from the tow in subsequent opera tions.
  • the particular configuration of the roller surfaces may vary widely without departing from the scope of the present invention, and the specific shapes shown in FIGS. 2 and 4 are merely two of the several configurations contemplated. The scope of the present invention is to be limited only by the extent of the following claims:
  • a stuiferbox crimping apparatus for crimping a continuous tow of material comprising a stufferbox chamber for producing a crimp in said tow and having an inlet and an outlet for conducting the tow therethrough, a pair of parallel, rotatable yarn-gripping rollers located adjacent said inlet for feeding tow thereto, the improvement which consists of means associated with said rollers for producing an initial crimp in said tow transverse to the crimp produced in said stufferbox chamber.
  • each roller consists of a plurality of ridges and grooves, the ridges of one roller surface opposing the grooves of the other.
  • a stuiferbox crimping apparatus for crimping a yarn tow comprising a stufferbox chamber having an inlet and outlet for passage of yarn therethrough and a pair of rotatable feed rollers having substantially parallel opposed yarn-gripping surfaces on the circumference thereof for introducing yarn into the inlet of said stutter- -box, the improvement comprising at least one ridge on one of said feed rollers and at least one cooperating groove on the other of said feed rollers, with said ridge and groove extending circumferentially around respective feed rollers, the ridges of each surface intermeshing with the grooves of the opposing surface, and wherein the space between feed rollers is greater in the center of said yarn-gripping surfaces than at the edges thereof.
  • a method of simultaneously producing a complex multidirectional crimp to a filamentary tow for purposes of improving the bulk and web forming characteristics thereof, comprising:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US427828A 1964-02-01 1965-01-25 Yarn texturizing method and apparatus Expired - Lifetime US3353239A (en)

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NL6400844A NL6400844A (es) 1964-02-01 1964-02-01

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Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643843A (en) * 1969-02-21 1972-02-22 Elitex Zavody Textilniho Yarn supply chamber
US3946469A (en) * 1967-11-20 1976-03-30 Imperial Chemical Industries Limited Polyester fibers and tows
US6123469A (en) * 1983-10-13 2000-09-26 Seiko Epson Corporation Ink-supply wire dot matrix printer head
US20040046767A1 (en) * 2000-03-29 2004-03-11 Autodesk Canada Inc. Gamma calibration
US6924029B1 (en) 2004-06-25 2005-08-02 Celanese Acetate, Llc Cellulose acetate tow and method of making same
US20050285299A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050288163A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050285298A1 (en) * 2004-06-25 2005-12-29 Ellison Gary B Cellulose acetate tow and method of making same
US20050283960A1 (en) * 2004-06-25 2005-12-29 Ellison Gary B Cellulose acetate tow and method of making same
US20050287368A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050283959A1 (en) * 2004-06-25 2005-12-29 Caenen Philip I L Cellulose acetate tow and method of making same
WO2006007011A2 (en) 2004-06-25 2006-01-19 Celanese Acetate Llc Cellulose acetate tow and method of making same
US8046885B1 (en) * 2008-06-02 2011-11-01 Superba Apparatus and methods for crimping textile threads
WO2014018645A1 (en) 2012-07-25 2014-01-30 R. J. Reynolds Tobacco Company Mixed fiber sliver for use in the manufacture of cigarette filter elements
WO2018160584A1 (en) 2017-02-28 2018-09-07 Eastman Chemical Company Cellulose acetate fibers in nonwoven fabrics
WO2019168845A1 (en) 2018-02-27 2019-09-06 Eastman Chemical Company Slivers containing cellulose acetate for spun yarns
US10524500B2 (en) 2016-06-10 2020-01-07 R.J. Reynolds Tobacco Company Staple fiber blend for use in the manufacture of cigarette filter elements
WO2020046634A1 (en) 2018-08-29 2020-03-05 Eastman Chemical Company Cellulose acetate fiber blends for thermal insulation batting
WO2021050266A1 (en) 2019-09-13 2021-03-18 Eastman Chemical Company Improving pilling resistance in fabrics using cellulose acetate staple fibers
US11118313B2 (en) 2019-03-21 2021-09-14 Eastman Chemical Company Ultrasonic welding of wet laid nonwoven compositions
US20210324548A1 (en) * 2020-04-17 2021-10-21 Universal Fibers, Inc. Sharp color effect yarn
WO2022005729A1 (en) 2020-06-30 2022-01-06 Eastman Chemical Company Washable cellulose acetate fiber blends for thermal insulation
US11230811B2 (en) 2018-08-23 2022-01-25 Eastman Chemical Company Recycle bale comprising cellulose ester
US11286619B2 (en) 2018-08-23 2022-03-29 Eastman Chemical Company Bale of virgin cellulose and cellulose ester
US11299854B2 (en) 2018-08-23 2022-04-12 Eastman Chemical Company Paper product articles
US11306433B2 (en) 2018-08-23 2022-04-19 Eastman Chemical Company Composition of matter effluent from refiner of a wet laid process
US11313081B2 (en) 2018-08-23 2022-04-26 Eastman Chemical Company Beverage filtration article
US11332888B2 (en) 2018-08-23 2022-05-17 Eastman Chemical Company Paper composition cellulose and cellulose ester for improved texturing
US11332885B2 (en) 2018-08-23 2022-05-17 Eastman Chemical Company Water removal between wire and wet press of a paper mill process
US11339537B2 (en) 2018-08-23 2022-05-24 Eastman Chemical Company Paper bag
US11390996B2 (en) 2018-08-23 2022-07-19 Eastman Chemical Company Elongated tubular articles from wet-laid webs
US11390991B2 (en) 2018-08-23 2022-07-19 Eastman Chemical Company Addition of cellulose esters to a paper mill without substantial modifications
US11396726B2 (en) 2018-08-23 2022-07-26 Eastman Chemical Company Air filtration articles
US11401659B2 (en) 2018-08-23 2022-08-02 Eastman Chemical Company Process to produce a paper article comprising cellulose fibers and a staple fiber
US11401660B2 (en) 2018-08-23 2022-08-02 Eastman Chemical Company Broke composition of matter
US11408128B2 (en) 2018-08-23 2022-08-09 Eastman Chemical Company Sheet with high sizing acceptance
US11414818B2 (en) 2018-08-23 2022-08-16 Eastman Chemical Company Dewatering in paper making process
US11414791B2 (en) 2018-08-23 2022-08-16 Eastman Chemical Company Recycled deinked sheet articles
US11421387B2 (en) 2018-08-23 2022-08-23 Eastman Chemical Company Tissue product comprising cellulose acetate
US11421385B2 (en) 2018-08-23 2022-08-23 Eastman Chemical Company Soft wipe comprising cellulose acetate
US11420784B2 (en) 2018-08-23 2022-08-23 Eastman Chemical Company Food packaging articles
US11441267B2 (en) 2018-08-23 2022-09-13 Eastman Chemical Company Refining to a desirable freeness
US11466408B2 (en) 2018-08-23 2022-10-11 Eastman Chemical Company Highly absorbent articles
US11479919B2 (en) 2018-08-23 2022-10-25 Eastman Chemical Company Molded articles from a fiber slurry
US11492755B2 (en) 2018-08-23 2022-11-08 Eastman Chemical Company Waste recycle composition
US11492756B2 (en) 2018-08-23 2022-11-08 Eastman Chemical Company Paper press process with high hydrolic pressure
US11492757B2 (en) 2018-08-23 2022-11-08 Eastman Chemical Company Composition of matter in a post-refiner blend zone
US11512433B2 (en) 2018-08-23 2022-11-29 Eastman Chemical Company Composition of matter feed to a head box
US11519132B2 (en) 2018-08-23 2022-12-06 Eastman Chemical Company Composition of matter in stock preparation zone of wet laid process
US11525215B2 (en) 2018-08-23 2022-12-13 Eastman Chemical Company Cellulose and cellulose ester film
US11530516B2 (en) 2018-08-23 2022-12-20 Eastman Chemical Company Composition of matter in a pre-refiner blend zone
WO2023027910A1 (en) 2021-08-26 2023-03-02 Eastman Chemical Company Dry spinning of cellulose acetate fiber
US11639579B2 (en) 2018-08-23 2023-05-02 Eastman Chemical Company Recycle pulp comprising cellulose acetate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090669A (en) * 1934-03-29 1937-08-24 Celanese Corp Artificial fiber
US2547285A (en) * 1945-09-10 1951-04-03 Trico Products Corp Windshield wiper mechanism
US2575781A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method of crimping textile fibers
US3234626A (en) * 1963-10-28 1966-02-15 Monsanto Co Apparatus for hot and cold crimping of textile filaments
US3259953A (en) * 1964-04-27 1966-07-12 Monsanto Co Double crimping apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090669A (en) * 1934-03-29 1937-08-24 Celanese Corp Artificial fiber
US2547285A (en) * 1945-09-10 1951-04-03 Trico Products Corp Windshield wiper mechanism
US2575781A (en) * 1949-10-14 1951-11-20 Alexander Smith Inc Method of crimping textile fibers
US3234626A (en) * 1963-10-28 1966-02-15 Monsanto Co Apparatus for hot and cold crimping of textile filaments
US3259953A (en) * 1964-04-27 1966-07-12 Monsanto Co Double crimping apparatus

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946469A (en) * 1967-11-20 1976-03-30 Imperial Chemical Industries Limited Polyester fibers and tows
US3643843A (en) * 1969-02-21 1972-02-22 Elitex Zavody Textilniho Yarn supply chamber
US6123469A (en) * 1983-10-13 2000-09-26 Seiko Epson Corporation Ink-supply wire dot matrix printer head
US6176629B1 (en) 1983-10-13 2001-01-23 Seiko Epson Corporation Ink supply tank for a printer
US6224275B1 (en) 1983-10-13 2001-05-01 Seiko Epson Corporation Ink-supply tank for a printer
US6231248B1 (en) 1983-10-13 2001-05-15 Seiko Epson Corporation Ink supply tank for a printer
US20040046767A1 (en) * 2000-03-29 2004-03-11 Autodesk Canada Inc. Gamma calibration
US6924029B1 (en) 2004-06-25 2005-08-02 Celanese Acetate, Llc Cellulose acetate tow and method of making same
US20050285299A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050288163A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050285298A1 (en) * 2004-06-25 2005-12-29 Ellison Gary B Cellulose acetate tow and method of making same
US20050283960A1 (en) * 2004-06-25 2005-12-29 Ellison Gary B Cellulose acetate tow and method of making same
US20050287368A1 (en) * 2004-06-25 2005-12-29 Celanese Acetate Llc Cellulose acetate tow and method of making same
US20050283959A1 (en) * 2004-06-25 2005-12-29 Caenen Philip I L Cellulose acetate tow and method of making same
WO2006007011A2 (en) 2004-06-25 2006-01-19 Celanese Acetate Llc Cellulose acetate tow and method of making same
EP1766109A2 (en) * 2004-06-25 2007-03-28 Celanese Acetate, LLC Cellulose acetate tow and method of making same
EP1769107A2 (en) * 2004-06-25 2007-04-04 Celanese Acetate, LLC Cellulose acetate tow and method of making same
EP1778903A2 (en) * 2004-06-25 2007-05-02 Celanese Acetate, LLC Cellulose acetate tow and method of making same
WO2006007011A3 (en) * 2004-06-25 2007-12-21 Celanese Acetate Llc Cellulose acetate tow and method of making same
JP2008504455A (ja) * 2004-06-25 2008-02-14 セラニーズ・アセテート・リミテッド・ライアビリティ・カンパニー 酢酸セルローストウおよびその製造方法
JP2008504451A (ja) * 2004-06-25 2008-02-14 セラニーズ・アセテート・リミテッド・ライアビリティ・カンパニー 酢酸セルローストウおよびその製造方法
US7425289B2 (en) 2004-06-25 2008-09-16 Celanese Acetate Llc Process of making cellulose acetate tow
US7445737B2 (en) 2004-06-25 2008-11-04 Celanese Acetate, Llc Cellulose acetate tow and method of making same
EP1766109A4 (en) * 2004-06-25 2008-11-12 Celanese Acetate Llc Cellulose acetate cable and method for its preparation
EP1769107A4 (en) * 2004-06-25 2008-11-12 Celanese Acetate Llc ACETOCELLULOSE TANK AND METHOD FOR MANUFACTURING THE SAME
EP1778903A4 (en) * 2004-06-25 2009-04-22 Celanese Acetate Llc ACETOCELLULOSE TANK AND METHOD FOR MANUFACTURING THE SAME
US7534380B2 (en) 2004-06-25 2009-05-19 Celanese Acetate Llc Cellulose acetate tow and method of making same
US7534379B2 (en) 2004-06-25 2009-05-19 Celanese Acetate Llc Process of making cellulose acetate tow
US7585441B2 (en) 2004-06-25 2009-09-08 Celanese Acetate, Llc Process of making cellulose acetate tow
US7585442B2 (en) 2004-06-25 2009-09-08 Celanese Acetate, Llc Process for making cellulose acetate tow
JP4684291B2 (ja) * 2004-06-25 2011-05-18 セラニーズ・アセテート・リミテッド・ライアビリティ・カンパニー 酢酸セルローストウおよびその製造方法
JP4684288B2 (ja) * 2004-06-25 2011-05-18 セラニーズ・アセテート・リミテッド・ライアビリティ・カンパニー 酢酸セルローストウおよびその製造方法
CN101151404B (zh) * 2004-06-25 2011-07-27 赛拉尼斯醋酸盐有限公司 醋酸纤维素丝束及其制造方法
CN1981071B (zh) * 2004-06-25 2012-06-27 赛拉尼斯醋酸盐有限公司 一种制造香烟丝束的装置和方法
US8046885B1 (en) * 2008-06-02 2011-11-01 Superba Apparatus and methods for crimping textile threads
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US20210324548A1 (en) * 2020-04-17 2021-10-21 Universal Fibers, Inc. Sharp color effect yarn
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