US3204319A - Apparatus for texturizing yarn - Google Patents

Apparatus for texturizing yarn Download PDF

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Publication number
US3204319A
US3204319A US267751A US26775163A US3204319A US 3204319 A US3204319 A US 3204319A US 267751 A US267751 A US 267751A US 26775163 A US26775163 A US 26775163A US 3204319 A US3204319 A US 3204319A
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US
United States
Prior art keywords
yarn
crimping
tow
gears
filaments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US267751A
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English (en)
Inventor
Russel F Baer
Howard E Morris
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Priority to US267751A priority Critical patent/US3204319A/en
Priority to US331208A priority patent/US3217377A/en
Priority to GB6748/64A priority patent/GB987555A/en
Priority to NL6401856A priority patent/NL6401856A/xx
Priority to AT163264A priority patent/AT262492B/de
Priority to DE19641435578 priority patent/DE1435578A1/de
Priority to NO152187A priority patent/NO115350B/no
Priority to DK135764AA priority patent/DK106813C/da
Priority to LU45731D priority patent/LU45731A1/xx
Priority to SE3585/64A priority patent/SE303008B/xx
Priority to BE645569D priority patent/BE645569A/xx
Priority to ES0297921A priority patent/ES297921A1/es
Priority to CH188566A priority patent/CH459452A/de
Priority to CH376664A priority patent/CH444367A/de
Application granted granted Critical
Publication of US3204319A publication Critical patent/US3204319A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D02G1/14—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using grooved rollers or gear-wheel-type members

Definitions

  • This invention relates to a method and apparatus for producing a textured yarn and more particularly, to a method and apparatus for treating a continuous filament, thermoplastic yarn or tow in such a way that the surface configuration of its component parts are modified so as to impart increased mass or bulk per unit length to such yarn.
  • these crimps are primarily responsible for the softer hand, greater warmth and ability to absorb moisture in wool as the crimps tend to hold the individual fibers in a wool yarn apart. Furthermore, the peculiar elastic qualities of wool are though to stem in great degree from these crimps in that, when such fibers are stretched, the crimps are subjected to a straightening influence and in the straightened condition internal stresses are set up the net effect of which are to urge the fibers to assume their original crimped configuration.
  • crimps or waves in synthetic filaments, one of the most common of which comprises a rotary means such as a pair of cooperating, toothed rolls with intermeshing teeth which advance and deform the filaments into the particular crimp pattern or crimp density desired.
  • the filaments which may be in the form of an elongated rope or tow, are initially heated and moistened prior to entering the crimping rolls in order to bring the filaments to a plastic state during which they are subjected to the action of the crimping agent.
  • the crimps are permanently set in the filaments.
  • Uniform crimping in a predetermined pattern is generally difiicult to attain in such prior crimping arrangements as the degree of plasticity of the filaments can not be controlled accurately and the amount of moisture added to the tow, as well as the temperture existing in that portions of the tow being crimped, are characterized by wide variations giving a crimped pattern of poor uniformity.
  • speed of processing becomes a problem due to the limitations in rapidity of heat transfer between the steam and the tow.
  • a further aspect of the problem in uniformity of the crimp imparted to the tow by such prior art apparatus employing the use of crimping rolls is that of a variation in the extent of engagement of individual filaments across the cross-section of the tow with the teeth of the crimping rolls, wherein those filaments interior of the tow are subjected to a ditferent crimping influence as compared to Patented Sept. 1965 'ice those filaments occupying the outer regions of the tow cross-section.
  • thermoplastic textile yarns whereby the texture thereof is beneficially modified to take on increased bulk.
  • Another object of our invention is to provide an improved method and apparatus for imparting bulk to thermoplastic continuous filament yarn by crimping same in a high speed, continuous operation to impart a three-dimensional crimp thereto.
  • Still another object of our invention is to provide a new and improved crimping apparatus and method for crimp ing a bundle of filamentary material in which such material is formed with a crimped pattern uniform throughout the cross-section of the bundle while virtually eliminating any breaking or cutting of the filaments during the crimping operations.
  • a still further object of this invention is to provide an improved crimping apparatus which has provision for opening, fluttering and otherwise distorting the yarn un der treatment from its normal internal orientation at a point immediately upstream of the crimping means to thereby realize a significant decrease in the period of time required to bring the yarn to a plasticized condition, with the concomitant advantage of presenting to the crimping means an open bundle of filaments momentarily distorted from their normal, internal orientation to thereby promote a greater uniformity of engagement of the crimping means with said bundle and to result in a three-dimensional crimp.
  • a further object of this invention is to provide an improved crimping apparatus operative to open, flutter and distort the yarn prior to its engagement by the crimping means with the yarn under treatment and also significantly increasing the rate of heat transfer between the fluid medium and the filamentary bundle.
  • Still another object of our invention is an improved method of mechanically texturizing thermoplastic filamentary tow by simultaneously heating and distorting such tow at a point immediately upstream from its point of engagement by a mechanical crimping means, preferably crimping gears, which crimping gears are provided with a means to maintain temperature stabilization.
  • a mechanical crimping means preferably crimping gears, which crimping gears are provided with a means to maintain temperature stabilization.
  • This sequence of steps may in turn be followed by a quenching or setting operation which, as herein disclosed, may be practiced in conjunction with preceding steps in a continuous fashion.
  • the result is a three-dimensional yarn of high crimp uniformity, both lengthwise and crosssection wise of the yarn bundle.
  • an improved apparatus for texturizing continuous filament, thermoplastic tow or yarn which apparatus is generally characterized by a mechanical crimping means, preferably a pair of intermeshing crimping gears, at least one of which may be provided with radial slots by way of which a cooling medium is communicated to the tooth portion of such gears, a quench chimney or equivalent setting means located immediately down stream of such crimping gears, and a tubular guide provided immediately upstream of such crimping means which tubular guide is provided with a fluid-actuated vortex generating means, which means is operative to introduce a tangential stream of air relative to said tubular guide or sleeve, which air or other gas is heated within a predetermined range to thereby simultaneously open, flutter and otherwise distort the yarn while it is being heated.
  • a mechanical crimping means preferably a pair of intermeshing crimping gears, at least one of which may be provided with radial slots by way of which a cooling medium is communicated to the
  • the foregoing and other objects are attained by the practice of the herewith disclosed method, which method comprehends the expedient of simultaneously heating and opening the yarn by subjecting such yarn to a vortex generating apparatus, thence crimping the yarn, preferably by means of crimping gears, followed by an immediate quenching or setting of the yarn.
  • the practice of such method has been found to result in significant increases in the degree of uniformity both axially and transversely of the yarn bundle and also increased rates of production, while providing a tridimensionally crimped yarn.
  • FIG. 1 is a prospective view of the overall arrangement of one possible embodiment of our crimping apparatus.
  • FIG. 2 is a fragmentary, partially section-alized View taken on line 22 of FIG. 1 and showing the details of the crimping gears.
  • spur gears 24, 26 having parallel axes, which spur gears mesh and are mounted on shafts 20, 22, respectively.
  • the filamentary tow or yarn 28 is subjected to laterally applied strains increasing and decreasing in intensity as the yarn approaches and leaves the plane defined by the two parallel axes of rotation of the crimping gears, at which point there is maximum meshing of the teeth.
  • the crimping gears 12, 14, their associated spur gears 24, 26 and shafts 20, 22 may be conveniently mounted by conventional journal bearings 30 in such fashion as to allow one of the shafts, illustrated as shaft 22, to functron as a drive shaft, wherein that end of drive shaft 22 remote from the crimping gear 26 is provided with pulley 32 which is engaged by a flexible belt 34 driven by a suitable variable speed electric motor 36, partially indicated.
  • the tubular sleeve or guide 18 previously mentioned is mounted with respect to the crimping gears 12, 14 so that one end thereof terminates in a closely spaced relationship with the nip of the crimping gears, which end may be tapered as at 38 to provide improved yarn control.
  • the opposite end of the sleeve 18 is conveniently flared as at 40 to facilitate reception of the yarn or tow 28 from a source of supply, not shown, by way of pigtail 42.
  • a source of supply not shown
  • a vortex generator which is operative to introduce a high velocity, heated fluid stream tangentially within the sleeve, which tangential stream acts upon the yarn or tow passing through such sleeve to open, and otherwise distort the yarn and to heat it to a plasticized state just prior to the yarn being contacted by the crimping gears.
  • a generator may take the form of a conventional electric resistance heater 44, which heater may be of a convenient cylindrical shape and which communicates with a source of electric current by way of leads 46.
  • a source of pressurized air or other desired fluid medium is conveyed through and heated by the resistance heater by means of conduit 48.
  • the air may be desired to exhaust the air in such direction as will generate a component directed axially of the tubular sleeve 18 to thereby urge the yarn downwardly therethrough, rendering the sleeve capable of self-feeding.
  • the only essential is that a component of the fluid exhausted into sleeve 18 will be in a plane transverse to the axial dimension of such sleeve so as to generate a high velocity vortex therewithin.
  • a cooling medium preferably air
  • manifold 54 When the crimping gears are in operation, a cooling medium, preferably air, is supplied to manifold 54 to be exhausted through radial ports 52 as the latter cyclically register with the manifod.
  • the exhausting of a cooling medium through the crimping gear or gears in such fashion serves to stabilize the operating temperature of such gears while supplementing the quenching operation primarily performed by the cooling air exhausting downwardly through the quench chimney 58, which cooling air may be supplied from a source common to that of the manifold 58, as by way of tubing 56.
  • Twi ted yarn can be as well processed as untwisted yarn. Substantial pretwisting of the yarn is generally unnecessary and, for economic considerations, is preferably avoided.
  • the main consideration to bear in mind is that the yarn, Whether of high or low twist, or of substantially zero twist, is, when processed according to the present invention, helically distorted about its longitudinal axis while simultaneously being heated, thence, immediately subjecting such deranged yarn to the action of a crimping means, such as the crimping rolls illustrated in the drawings.
  • the denier of the thermoplastic yarn can vary considerably, as well as the denier of the individual filaments, the ordinary deniers of commercially available yarns being entirely suitable. Yarns having different compositions and deniers can be blended and otherwise combined before being processed to produce novel effects.
  • crimped refers to the fact that the filaments contain many crimps, crinkles, curls and the like which bend in and out in a sinusoidal pattern along the length of the individual filaments and which may be in diverse planes, resulting in a threedimensional crimp made possible by the practice of our invention.
  • An apparatus as defined in claim 1 which is further characterized by a quenching means disposed immediately downstream of said crimping means, said quenching means comprising a tubular quench chimney and means to supply a cooling medium to said chimney.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US267751A 1963-03-25 1963-03-25 Apparatus for texturizing yarn Expired - Lifetime US3204319A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US267751A US3204319A (en) 1963-03-25 1963-03-25 Apparatus for texturizing yarn
US331208A US3217377A (en) 1963-03-25 1963-12-17 Method for texturizing yarn
GB6748/64A GB987555A (en) 1963-03-25 1964-02-18 Method and apparatus for texturizing tow or yarn and textured yarn
AT163264A AT262492B (de) 1963-03-25 1964-02-26 Verfahren und Vorrichtung zur Texturierung eines kontinuierlich sich fortbewegenden thermoplastischen Fasermaterials
NL6401856A NL6401856A (en, 2012) 1963-03-25 1964-02-26
NO152187A NO115350B (en, 2012) 1963-03-25 1964-02-27
DE19641435578 DE1435578A1 (de) 1963-03-25 1964-02-27 Verfahren und Vorrichtung zur Texturierung von Garn od.dgl.
DK135764AA DK106813C (da) 1963-03-25 1964-03-17 Fremgangsmåde og apparat til kontinuerlig krusning af filamenter.
LU45731D LU45731A1 (en, 2012) 1963-03-25 1964-03-23
SE3585/64A SE303008B (en, 2012) 1963-03-25 1964-03-23
BE645569D BE645569A (en, 2012) 1963-03-25 1964-03-23
ES0297921A ES297921A1 (es) 1963-03-25 1964-03-23 Metodo y aparato para estructurar hilo
CH188566A CH459452A (de) 1963-03-25 1964-03-24 Vorrichtung zur Kräuselung von Garn oder Filamentkabeln
CH376664A CH444367A (de) 1963-03-25 1964-03-24 Verfahren zum Kräuseln von Garnen oder Spinnkabeln sowie die nach diesem Verfahren gekräuselten Garne oder Spinnkabel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US267751A US3204319A (en) 1963-03-25 1963-03-25 Apparatus for texturizing yarn

Publications (1)

Publication Number Publication Date
US3204319A true US3204319A (en) 1965-09-07

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Application Number Title Priority Date Filing Date
US267751A Expired - Lifetime US3204319A (en) 1963-03-25 1963-03-25 Apparatus for texturizing yarn

Country Status (12)

Country Link
US (1) US3204319A (en, 2012)
AT (1) AT262492B (en, 2012)
BE (1) BE645569A (en, 2012)
CH (2) CH459452A (en, 2012)
DE (1) DE1435578A1 (en, 2012)
DK (1) DK106813C (en, 2012)
ES (1) ES297921A1 (en, 2012)
GB (1) GB987555A (en, 2012)
LU (1) LU45731A1 (en, 2012)
NL (1) NL6401856A (en, 2012)
NO (1) NO115350B (en, 2012)
SE (1) SE303008B (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367005A (en) * 1964-06-09 1968-02-06 Uniroyal Inc Apparatus for crimping and texturizing yarn
US3650431A (en) * 1969-12-19 1972-03-21 Phillips Petroleum Co Safety container
US3686723A (en) * 1970-11-13 1972-08-29 Ici Ltd Gears for crimping yarn
US4505013A (en) * 1980-10-08 1985-03-19 E. I. Du Pont De Nemours And Company Process and apparatus for making coherent yarn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361468A (en) * 1993-06-22 1994-11-08 Ho Kim K System for automatically rippling and hackling wig yarns

Citations (7)

* 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
US2575839A (en) * 1948-12-15 1951-11-20 Alexander Smith Inc Process for crimping uncrosslinked fibers
US2914835A (en) * 1954-03-04 1959-12-01 Owens Corning Fiberglass Corp Method of crimping fibrous glass strand
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn
US3041706A (en) * 1960-11-17 1962-07-03 Monsanto Chemicals Apparatus for processing cold-drawable textile filaments
US3065519A (en) * 1957-03-07 1962-11-27 English Rose Ltd Method of producing crimped thermoplastic yarns
US3090096A (en) * 1959-05-13 1963-05-21 Techniservice Corp Strand-crimping apparatus

Patent Citations (7)

* 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
US2575839A (en) * 1948-12-15 1951-11-20 Alexander Smith Inc Process for crimping uncrosslinked fibers
US2914835A (en) * 1954-03-04 1959-12-01 Owens Corning Fiberglass Corp Method of crimping fibrous glass strand
US3065519A (en) * 1957-03-07 1962-11-27 English Rose Ltd Method of producing crimped thermoplastic yarns
US3090096A (en) * 1959-05-13 1963-05-21 Techniservice Corp Strand-crimping apparatus
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn
US3041706A (en) * 1960-11-17 1962-07-03 Monsanto Chemicals Apparatus for processing cold-drawable textile filaments

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367005A (en) * 1964-06-09 1968-02-06 Uniroyal Inc Apparatus for crimping and texturizing yarn
US3372446A (en) * 1964-06-09 1968-03-12 Uniroyal Inc Jet crimping and texturizing apparatus
US3650431A (en) * 1969-12-19 1972-03-21 Phillips Petroleum Co Safety container
US3686723A (en) * 1970-11-13 1972-08-29 Ici Ltd Gears for crimping yarn
US4505013A (en) * 1980-10-08 1985-03-19 E. I. Du Pont De Nemours And Company Process and apparatus for making coherent yarn

Also Published As

Publication number Publication date
SE303008B (en, 2012) 1968-08-12
AT262492B (de) 1968-06-10
LU45731A1 (en, 2012) 1964-09-23
GB987555A (en) 1965-03-31
ES297921A1 (es) 1964-12-01
CH376664A4 (en, 2012) 1967-06-15
CH444367A (de) 1968-02-15
NO115350B (en, 2012) 1968-09-23
DE1435578A1 (de) 1968-12-19
DK106813C (da) 1967-03-20
NL6401856A (en, 2012) 1964-09-28
CH459452A (de) 1968-07-15
BE645569A (en, 2012) 1964-09-23

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