US3142147A - Voluminous yarn from synthetic continuous thermoplastic filaments - Google Patents

Voluminous yarn from synthetic continuous thermoplastic filaments Download PDF

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Publication number
US3142147A
US3142147A US75641A US7564160A US3142147A US 3142147 A US3142147 A US 3142147A US 75641 A US75641 A US 75641A US 7564160 A US7564160 A US 7564160A US 3142147 A US3142147 A US 3142147A
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Prior art keywords
yarn
filaments
gas
jet
body portion
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Expired - Lifetime
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US75641A
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English (en)
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Theodore D Betsch
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Monsanto Co
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Monsanto Co
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Priority to GB6521/60A priority Critical patent/GB941931A/en
Priority to DE19601435374 priority patent/DE1435374A1/de
Application filed by Monsanto Co filed Critical Monsanto Co
Priority to US75641A priority patent/US3142147A/en
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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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • This invention relates to the manufacture of voluminous texturized yarn and particularly relates to synthetic continuous filaments made from thermoplastic resins and exhibiting a wooly, fiuify, stretchable character.
  • Synthetic textile yarns are classified generally into two distinct types, each having its own properties and advantages.
  • One type known as spun yarn is spun from synthetic textile staple fibers.
  • the spun yarns have the disadvantage of relatively low strength.
  • some of the advantages associated with spun yarns include enhanced capacity to absorb moisture, greater insulating power, a more agreeable hand, and a toned-down luster.
  • the other type of synthetic textile yarn is known as continuous filament yarn. While continuous filament yarns have the advantage of greater evenness and superior strength, they have several undesirable properties including low heat insulating values, lack of bulkiness desired for some end uses, and low covering power.
  • the principle underlying the manufacture of the new voluminous yarn is based on the displacement of the filaments in a strong current of air or gas, as the result of which filament loops project outwardly from the body of the filaments.
  • This filamentary displacement is accomplished by passing a continuous filament yarn into a confined zone through which a stream of high velocity gas is passed and abruptly removing the yarn from the stream of gas just as the yarn is withdrawn from the zone.
  • An object of this invention is to provide a simple, rapid, and economical method for commercially producing a thermoplastic continuous filament y-arn having a wooly, fiuffy, stretchable character and possessing many properties associated with spunyarn while retaining many properties associated with filament yarn, such as strength.
  • Another object of this invention is to provide a method of imparting greater bulk and stretchability to a bundle of synthetic thermoplastic continuous filaments by displacement and deformation of the filaments by a strong current of gas, the resulting yarn having enhanced flufiiness without the loops associated with yarn displaced by compressed gas in accordance with the prior art methods.
  • Still another object of this invention is to provide an efiicient apparatus with which thermoplastic continuous filament yarn can be quickly and economically treated so as to impart thereto enhanced bulkiness, substantially permanent crimpiness, and other desirable properties, the treated yarn producing a thicker and more capacious textile article when woven, knitted, tufted, etc., for a given weight of yarn.
  • a further object of the present invention is to provide an improved voluminous thermoplastic continuous filament yarn which is vastly different in appearance from the yarn heretofore obtained by the art, characterized particularly by the fact that the filaments thereof have been simultaneously disturbed and thermally deformed by a stream of high velocity gas in a dry state.
  • a further object of the present invention is to provide a novel, bulky yarn composed of synthetic thermoplastic continuous filament yarn, the cross-sections of the filaments having been modified from the normal circular cross-section.
  • FIGURE 1 is a schematic view in elevation, with principal parts in location, illustrating one arrangement of apparatus suitable for preparing the new voluminous yarns;
  • FIGURE 2 is a schematic view in perspective with prin cipal parts in location, illustrating a second arrangement of apparatus suitable for preparing the new voluminous yarns;
  • FIGURE 3 is a schematic view in elevation with principal parts in location illustrating a third arrangement of apparatus suitable for preparing the new voluminous yarns
  • FIGURE 4 is a drawing of nylon yarn treated in accordance with the prior art method of imparting bulk to continuous yarn by air disturbance, showing the projecting loops associated therewith;
  • FIGURE 5 is a drawing of nylon yarn treated in accordance with the present invent-ion showing its fluffy, crimpy, voluminous character and further illustrates the substantial absence of loops and the pronounced lateral spacing of the individual filaments;
  • FIGURE 6 is a considerably enlarged view of a single filament of Y-shaped cross-section treated in accordance with the present invention, illustrating the randomly reversed helical twist therein.
  • thermoplastic yarn indicated by numeral 10 such as nylon and the like, composed of a bundle of smooth continuous filaments is withdrawn from a yarn source, for example yarn package 11, and is passed upwardly over one end of bobbin 12 or other yarn holder, such as a pirn or cone.
  • the yarn is threaded through a tensioning device 13, for example the gate type as illustrated, that is preferably disposed directly over the yarn package 11.
  • a tensioning device 13 From the tensioning device 13 the yarn 19 is passed in an upward direction between a thread advancing means 14 that supplies the yarn at a controlled supply rate and which is operated at a first peripheral speed and comprises as illustrated a pair of driven feed rolls.
  • a fluid jet generally designated by numeral 15 and adapted to receive the yarn.
  • This jet is provided with a diagonally extending side arm 16 having a central bore into which the yarn is passed and is provided also with a longitudinal axial bore establishing communication with the bore in arm 16.
  • a compressor 17 is employed to maintain a compressible gas in a reservoir or storage tank 18 under a predetermined elevated pressure sumcient so that a stream of high velocity gas can be supplied to jet 15 as desired.
  • the storage tank 18 is connected by conduit 29 to heating zone or heating chamber 21 through which the compressed gas is directed on its way to jet 15.
  • chamber 21 is provided with an electrically energizable heater element 22, electrical power being supplied to said element 22 through conductive lines 23 having a terminal plug 24 adapted for reception in a power outlet source.
  • conductive lines 23 having a terminal plug 24 adapted for reception in a power outlet source.
  • chamber 21 can have heat supplied to it externally, such as provided by proper arrangement of a combustible gas or liquid burner.
  • chamber 21 the compressed gas is heated to an elevated temperature and the temperature of the gas leaving the exit end of said chamber is maintained at a uniform temperature by a thermostat arrangement, not shown. After being heated the compressed air is led to jet 15 through an insulated conduit 25. Valve 26 in the inlet end of jet 15 is ordinarily opened before threading of the yarn through the jet since the movement of the gas upwardly through the horizontal bore thereof will assist in doing this. Near the central portion of jet 15 the yarn contacts the gas and is propelled concurrently thereby.
  • the thermoplastic filament yarn becomes heated to an elevated temperature, sufiiciently high that if the thermoplastic yarn were twisted at this point and cooled in the resultant twisted condition, the twist would be set. Therefore, it is seen that care must be exercised to maintain the proper correlation between air pressure, heat, speed, yarn size, and other process variables.
  • the yarn is conveyed through the upper part of jet 15 by the gas flowing at a high velocity therethrough.
  • the yarn initially contacts the flowing stream of gas at an angle with respect to the directional flow of the gas and, in particular, at an acute angle with respect to the upstream flow of the gas.
  • this particular angular engagement is not essential to the invention.
  • the jet may be constructed so that the yarn passes in a straight line longitudinally through the jet with the hot compressed gas initially contacting the yarn at an angle with respect to the path of yarn travel.
  • thermoplastic yarn Upon leaving the upper end of jet 15 the thermoplastic yarn is withdrawn at an angle with respect to the flow of the gas as soon as it emerges therefrom.
  • the angle of withdrawal is substantially 90, i.e., at a right angle with respect to the flow of gas, whereby the heated yarn is removed abruptly from the influence of the gas.
  • the abrupt removal of the yarn from the stream of gas is accomplished by proper positioning of a guide, such as pigtail guide 27 or the like, horizontally spaced from the upper end of the jet, and by passing the yarn therethrough.
  • a second yarn guide, as for example, pigtail guide 23, is disposed above guide 27.
  • a traverse guide 34 and a yarn take-up holder 31 surface driven by roll 32 completes one position of the apparatus illustrated in FIGURE 1.
  • the yarn is led through guides 27 and 28 and thence through the traverse guide which lays the yarn on holder 31 to form a uniform package 33 without increasing the twist of the yarn.
  • the peripheral speed of roll 32 is less than the linear speed at which the yarn is supplied to the jet by means 14 in order to compensate for the induced bulkiness of the yarn. In other words, arrangement is made that the speed of ingress of the yarn to the jet is more than the speed of egress therefrom. Before the yarn is taken up in package form, it is cooled by being passed through the atmosphere.
  • the above-described mechanism produces bulked, highly crimped, stretchable continuous filament yarn (see FIGURE 5) made from various thermoplastic polymers. Since the increased bulk and crimp are induced by the disturbance and discomposure of the filaments under the application of very hot dry air and cooled in the resulting disarrangement, the enhanced bulky character and crimp of the yarn are highly stable.
  • FIGURES 1, 2, and 3 While one yarn treating unit is illustrated in FIGURES 1, 2, and 3, it will be appreciated readily that the apparatus of the instant invention may be provided with a plurality of identical yarn possessing units along its length. However, a single source of heated compressed gas can be used to supply a plurality of jets. Moreover, yarn from two or more different sources which may or may not be of the same thermoplastic material or have the same denier, twist, or other properties can be combined by feeding same together through the jet.
  • FIGURE 2 where another embodiment of the invention is shown in which the means for compressing and heating the dry gas have been omitted with the insulated conduit for supplying the hot gas to the jet, however, being shown in part.
  • Thermoplastic yarn It such as nylon and the like, composed of a bundle of cold-drawable smooth continuous filaments is withdrawn from a yarn package 11 and is passed over one end of bobbin 12 or other yarn holder. Then the yarn is passed through a pigtail guide 34 or similar guide means. From this yarn guide the yarnis passed in a downward direction between a thread advancing means 35 operated at a first peripheral speed and comprising as illustrated a pair of driven feed rolls.
  • Jet 15 is positioned so that its longitudinal axial bore through which the dry compressed air passes is disposed horizontally and spaced diagonally from roll 37 so that yarn it can be fed conveniently into arm 16 of the jet. It will be perceived that the angular disposition of the jet is not critical and will be determined to a great extent by the position of the means for feeding and withdrawing the yarn to and from the jet. Heated dry gas flurrying or flowing at a high velocity horizontally through the jet conveys the yarn therethrough and heats the same as desired. Again as shown, the thermoplastic yarn initially contacts the flowing stream of hot gas at an angle with respect to the directional flow of the gas. Upon leaving the exit end of jet 15 the yarn is withdrawn abruptly at an angle with respect to the flow of the gas as soon as it emerges therefrom.
  • the abrupt angular removal of the yarn from the stream of gas is accomplished by proper positioning of a guide. Since care must be exercised to maintain a controlled yarn withdrawal speed from the jet, that is the speed at which the yarn is withdrawn from the jet must be at a reduced speed as compared to the speed at which the yarn is fed to the jet in order to compensate for the induced bulkiness, one can employ a driven thread advancing means 40, such as a pair of feed rolls as illustrated, for accomplishing this and for proper guiding of the yarn emerging from jet 15. The yarn is then taken up in an orderly and conventional manner.
  • the yarn is passed through pigtail guide 41 and then is taken up by a ring twisting assembly 42 which comprises a bobbin 43 adapted to be rotated by driven belt 44 in a conventional manner and to collect a supply of the yarn indicated by reference numeral 45.
  • the assembly also comprises a conventional spinning ring 46 carrying a ring traveller 47 adapted to rotate about the bobbin 43 as the yarn is twisted a desired amount and wound on the bobbin.
  • FIGURE 3 where a further embodiment of the invention is exemplified in which the means for compressing and heating the dry gas have been omitted with the insulated conduit 25 for supplying the hot gas to the jet, however, being shown in part- Thermoplastic continuous filament yarn It; is withdrawn from a yarn package 11 and is passed over one end of bobbin 12 or other yarn holder. Then the yarn is passed through a pigtail guide and is fed to side arm 16 of jet 15 at a controlled speed by a thread advancing means 59, such as the feed rolls illustrated.
  • a thread advancing means 59 such as the feed rolls illustrated.
  • Jet 15 is positioned so that its longitudinal axial bore through which the dry compressed air passes is disposed horizontally and spaced diagonally from rolls 49 so that the yarn can be fed conveniently into the side arm of the jet. Heated dry gas flowing at a high velocity horizontally through the jet propels the yarn therethrough and heats same as desired. Again, the yarn initially contacts the flowing stream of hot gas at an angle with respect to the directional flow of the gas. Upon leaving the exit end of jet the yarn is withdrawn at an angle with respect to the directional flow of gas as soon as it is expelled therefrom. This sudden angular removal of the yarn from the stream of gas can be accomplished by proper positioning of a guide, such as a driven thread advancing means or feed rolls 59 as shown which advances the yarn at a controlled reduced rate.
  • a guide such as a driven thread advancing means or feed rolls 59 as shown which advances the yarn at a controlled reduced rate.
  • the thermoplastic filament yarn is subjected preferably next to a treatment in a hot aqueous medium in a relaxed or substantially relaxed condition.
  • This operation further increases the bulkiness, crimpiness, and stretchability of the yarn.
  • the yarn after being passed through the jet is laid by means of a traversing piddler 51 on a moving perforated endless belt 52 (in a zig-zag pattern) that passes through a cabinet 53 having steaming and drying zones or compartments, the steaming compartment being provided with means 54 for supplying live steam upwardly through the belt to the yarn and the drying compartment being provided with drying means 55, such as an array of drying lamps for drying the steamed yarn.
  • drying means 55 such as an array of drying lamps for drying the steamed yarn.
  • the yarn is suspended in hot water flowing through a tube or the like and then dried without tension by suitable means such as in a drying cabinet in which hot air or other suitable drying gas at an elevated temperature is directed onto the yarn therein.
  • suitable means such as in a drying cabinet in which hot air or other suitable drying gas at an elevated temperature is directed onto the yarn therein.
  • the yarn can be steam treated and dried by being conveyed and suspended by a stream of steam and conveyed and suspended by a stream of drying gas.
  • the yarn is dried and is taken up in an orderly manner.
  • traverse guide 56 lays the yarn on a bobbin 57 surface driven by roller 58 to form a yarn package 60.
  • the filaments are thermally deformed and discomposed in a continuous manner by the action of the heated air flowing through the jet and thereafter are permitted to relax continuously in a hot aqueous medium.
  • an advantage of this embodiment is that the yarn so treated has even greater bulkiness, crimpiness, and stretchability.
  • a useful, rapid, and economical method for making these new yarns comprises in general subjecting the continuous filament yarn to the action of a stream of high velocity hot gas, whereby the filaments are disturbed and thermally deformed into a bulky, voluminous, crimpy structure having excellent stability.
  • a dry compressible gas is heated and compressed to a predetermined temperature and pressure. This compressed gas is supplied to and through a confined zone as in a jet above described, thereby establishing a stream of the gas flowing or flurrying through such a zone at a high velocity.
  • Such adjustment of the rates with respect to each other allows slack to be in the running yarn while it is being subjected to the action of the gas.
  • the yarn is cooled before being tensioned or taken up in package form, to stabilize the bulky, crimpy structure of the yarn. Ordinarily, passing the yarn a short distance through air will accomplish this.
  • An additional operation whereby the bulkiness of the yarn is further augmented includes subjecting the yarn to a hot aqueous medium while relaxed and then drying the yarn.
  • the number of fins may be two, three, four, or more and yarns having the fins are prepared by conventional methods, such as by employing during spinning a spinneret adapted to produce filaments having the desired number of fins or legs. Examination of a yarn having a Y-shaped cross-section and a slight twist and having been subjected to the method of the instant invention reveals that the finned sections thereof have a helical or spiral twist directionally reversed in a random pattern along the length of the individual filaments.
  • FIGURE 6 of the drawing illustrating a single filament so twisted wherein the body portion is of substantially rounded cross section and wherein the fin-like sections have rounded tips and are parentheticaly curved between the tips and the body portion. It has been found that the bulked yarn having the non-circular cross-section is excellent for rugs. Rugs made therefrom are more resistant to matting.
  • one embodiment of the instant invention includes imparting an orientation stretch shortly before the yarn is subjected to the hot air treatment.
  • a bulked yarn may be obtained advantageously by only slight modification of existing yarn drawing m.- chines.
  • the yarn is supplied to the jet considerably faster than it is withdrawn therefrom and taken up.
  • the overfeed of the yarn is possible, best results are obtained in practicing the present invention when the yarn is supplied to the jet at a linear rate between 35 percent and 75 percent faster than it is withdrawn therefrom, depending on such process variables as the weight of the yarn being treated and the percent increase in bulkiness accomplished by following the present process.
  • the gas pressure needed to impart bulkiness to the yarn in accordance with the present invention is dependent on many process variables. In general, it can be stated that owing to the cost of compressing gas one should operate near the minimum pressure consistent with the obtaining of the desired characteristics in the yarn. Higher pressures, for example, are required when higher yarn speeds and heavier deniers are employed. Typical air pressure requirements for the known jets are about 40 to pounds per square inch gauge or higher.
  • FIGURE 5 By employing the above-described apparatus and process, one produces a bulked, crimped, stretchable continuous filament yarn as illustrated in FIGURE 5 with such properties having excellent stability.
  • Bulk refers to the relative volume occupied by a given weight of yarn.
  • yarns having increased bulk such as those proucked in accordance with the present invention, have greater covering power and warmth owing to the increased lateral interfilament spacing of the yarn and therefore converts into a more voluminous cloth.
  • the average degree of interfilament spacing generally is uniform from the central to the exterior portions of the structure.
  • the increased voluminousness of bulk of the yarn has excellent stability, that is to say that the yarn is capable of withstanding a radially inward pressure applied thereto without permanently being compacted and will resume its original voluminous condition upon re moval of such pressure.
  • Crimped refers to the fact that the filaments contain many crimps, crinkles, and the like which bend in and out in a sinuous pattern along the length of the filaments and which may be in one or more planes.
  • the crimps in the filaments of the present invention have a somewhat rounded apex or curved bends as distinguished from one that is pointed or angular.
  • the crimps introduced by means of the present invention are surprisingly permanent.
  • the crimps have the capacity of retaining their sinuated and curved form and ordinarily can not be removed unless subjected to extraordinary stress, such as where longitudinal tension is applied to the yarn at an elevated temperature.
  • stretchable refers to the fact that the yarns produced in accordance with this invention are elastic and have the ability to accept a slight longitudinally applied stress and thereby to become easily extended to a considerable length without becoming permanently elongated.
  • the yarn can be elongated 20-25 percent or more from its untensioned or relaxed length and immediately recover from this elongation in the nature of the so-called stretch yarn.
  • the yarn was passed through a pigtail guide that was horizontally spaced with respect to the exit end of the jet so that the path of yarn travel was changed substantially 90 as the yarn issued forth from the jet.
  • the yarn was wound around a second bobbin which was surface driven by a roller.
  • the linear takeup speed was about 41 yards per minute, the overfeed of the yarn to the jet thereby being about 49 percent.
  • a close examination of the individual filaments revealed the legs or fins extending from the filament body along the length thereof followed a helical pattern that was reversed randomly from a counterclockwise direction to a clockwise direction.
  • thermoplastic filament yarn may be bulked together with or combined with a yarn which is not thermoplastic such as regenerated cellulose. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments shown and described herein, except as defined in the appended claims.
  • a multi-continuous filament yarn made of a homo geneous thermoplastic polymer, having a stable crimpy flutfy bulky character and a pronounced lateral spacing of the filaments thereof, and being substantially free of filamentary loops, characterized in that the individual filaments thereof have individually and randomly reversed helical twist about their respective axes along their lengths and particularly characterized in that the filaments have a body portion of substantially rounded cross section and a plurality of slender fin-like sections integrally joined to the body portion and radially disposed upon the surface of and extending longitudinally of the body portion, said fin-like sections having rounded tips and being parenthetically curved between the tips and the body portion, the radial length of the fin-like sections being greater than the diameter of the body portion.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US75641A 1959-03-09 1960-12-13 Voluminous yarn from synthetic continuous thermoplastic filaments Expired - Lifetime US3142147A (en)

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Application Number Priority Date Filing Date Title
GB6521/60A GB941931A (en) 1959-03-09 1960-02-24 Manufacture of bulked yarn from synthetic continuous thermoplastic filaments
DE19601435374 DE1435374A1 (de) 1959-03-09 1960-03-09 Verfahren und Vorrichtung,um kontinuierlichem thermoplastischem Garn Bausch zu erteilen
US75641A US3142147A (en) 1959-03-09 1960-12-13 Voluminous yarn from synthetic continuous thermoplastic filaments

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US79816359A 1959-03-09 1959-03-09
US75641A US3142147A (en) 1959-03-09 1960-12-13 Voluminous yarn from synthetic continuous thermoplastic filaments

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Cited By (19)

* Cited by examiner, † Cited by third party
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US3188713A (en) * 1963-05-06 1965-06-15 Eastman Kodak Co Apparatus for processing crosssection yarn
US3241212A (en) * 1961-02-27 1966-03-22 Deering Milliken Res Corp Apparatus for crimping thermoplastic yarn
US3255508A (en) * 1959-06-02 1966-06-14 Du Pont Apparatus for crimping textile yarn
US3258825A (en) * 1962-03-26 1966-07-05 Eastman Kodak Co Methods for the production of highshrink modacrylic yarn
US3283493A (en) * 1960-12-12 1966-11-08 Celanese Corp Process of producing a spun yarn
US3298079A (en) * 1965-05-24 1967-01-17 Eastman Kodak Co Method for producing a novel crimped yarn and fabric
US3311687A (en) * 1960-12-06 1967-03-28 Scragg Frederick Process for manufacturing a monofilament
US3411287A (en) * 1966-05-18 1968-11-19 Owens Corning Fiberglass Corp Fancy yarn
US3438105A (en) * 1966-09-23 1969-04-15 Rhodiaceta Process for crimping thermoplastic yarns
US3477220A (en) * 1967-10-04 1969-11-11 Kendall & Co Draftable novelty yarns and process therefor
US3478398A (en) * 1967-09-25 1969-11-18 Monsanto Co Yarn jet apparatus
US3526569A (en) * 1969-04-10 1970-09-01 Sohinder Nath Chopra Crinkled plastic ribbon
US3852946A (en) * 1967-07-10 1974-12-10 Celanese Corp Bulk yarn
US4135511A (en) * 1976-06-04 1979-01-23 Phillips Petroleum Company Method for start up of a yarn crimping process
US4237187A (en) * 1979-02-26 1980-12-02 Allied Chemical Corporation Highly oriented, partially drawn, untwisted, compact poly(ε-caproamide) yarn
US4253299A (en) * 1979-05-03 1981-03-03 Phillips Petroleum Company Bulked and entangled multifilament thermoplastic yarn
US4861660A (en) * 1986-01-20 1989-08-29 Teijin Limited Stretchable synthetic polymer composite filament
US20040194267A1 (en) * 2003-03-31 2004-10-07 Willem Bakker Air-jet method for producing composite elastic yarns
EP1541727A1 (de) * 2003-12-05 2005-06-15 Schärer Schweiter Mettler AG Verfahren zur Reduktion des Betriebsdrucks einer Texturierdüse und Garnbehandlungseinrichtung mit einer Texturierdüse

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Publication number Priority date Publication date Assignee Title
US3686848A (en) * 1970-04-23 1972-08-29 Uniroyal Inc Highly resilient polypropylene yarn

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US2439814A (en) * 1943-05-13 1948-04-20 American Viscose Corp Crimped artificial filament
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US2751747A (en) * 1956-02-08 1956-06-26 Patentex Inc Process of producing dual twist yarn
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US2909028A (en) * 1956-06-06 1959-10-20 Patentex Inc Dual torque yarn and method of making same
US2968857A (en) * 1957-07-30 1961-01-24 Celanese Corp High bulk filamentary material and methods of producing the same
US3009309A (en) * 1956-07-16 1961-11-21 Du Pont Fluid jet twist crimping process
US3017686A (en) * 1957-08-01 1962-01-23 Du Pont Two component convoluted filaments
US3022566A (en) * 1958-02-11 1962-02-27 Du Pont False twisted yarn beam
US3033240A (en) * 1958-12-19 1962-05-08 Celanese Corp Pile carpet
US3092890A (en) * 1960-11-21 1963-06-11 Monsanto Chemicals Textured multilobal filament yarn

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Publication number Priority date Publication date Assignee Title
US2002153A (en) * 1933-04-13 1935-05-21 Sylvania Ind Corp Artificial filament and method for its production
US2379824A (en) * 1943-03-06 1945-07-03 Du Pont Process and apparatus for treating artificial filaments
US2439814A (en) * 1943-05-13 1948-04-20 American Viscose Corp Crimped artificial filament
US2637893A (en) * 1949-03-12 1953-05-12 Shaw Gilbert Artificial filament
US2743511A (en) * 1952-11-05 1956-05-01 Nat Plastic Products Company Scouring pad and filament
US2807864A (en) * 1954-06-24 1957-10-01 Eastman Kodak Co Composition and process for treating yarn
US2750653A (en) * 1955-01-19 1956-06-19 Eastman Kodak Co Yarn structure
US2751747A (en) * 1956-02-08 1956-06-26 Patentex Inc Process of producing dual twist yarn
US2909028A (en) * 1956-06-06 1959-10-20 Patentex Inc Dual torque yarn and method of making same
US3009309A (en) * 1956-07-16 1961-11-21 Du Pont Fluid jet twist crimping process
FR1178980A (fr) * 1956-07-16 1959-05-19 Du Pont Procédé de tordage à jet de fluide, appareil destiné à cet effet, et produits obtenus
US2968857A (en) * 1957-07-30 1961-01-24 Celanese Corp High bulk filamentary material and methods of producing the same
US3017686A (en) * 1957-08-01 1962-01-23 Du Pont Two component convoluted filaments
US2869967A (en) * 1957-08-23 1959-01-20 Du Pont Bulky yarn
US3022566A (en) * 1958-02-11 1962-02-27 Du Pont False twisted yarn beam
US3033240A (en) * 1958-12-19 1962-05-08 Celanese Corp Pile carpet
US3092890A (en) * 1960-11-21 1963-06-11 Monsanto Chemicals Textured multilobal filament yarn

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255508A (en) * 1959-06-02 1966-06-14 Du Pont Apparatus for crimping textile yarn
US3311687A (en) * 1960-12-06 1967-03-28 Scragg Frederick Process for manufacturing a monofilament
US3283493A (en) * 1960-12-12 1966-11-08 Celanese Corp Process of producing a spun yarn
US3241212A (en) * 1961-02-27 1966-03-22 Deering Milliken Res Corp Apparatus for crimping thermoplastic yarn
US3258825A (en) * 1962-03-26 1966-07-05 Eastman Kodak Co Methods for the production of highshrink modacrylic yarn
US3188713A (en) * 1963-05-06 1965-06-15 Eastman Kodak Co Apparatus for processing crosssection yarn
US3298079A (en) * 1965-05-24 1967-01-17 Eastman Kodak Co Method for producing a novel crimped yarn and fabric
US3411287A (en) * 1966-05-18 1968-11-19 Owens Corning Fiberglass Corp Fancy yarn
US3438105A (en) * 1966-09-23 1969-04-15 Rhodiaceta Process for crimping thermoplastic yarns
US3852946A (en) * 1967-07-10 1974-12-10 Celanese Corp Bulk yarn
US3478398A (en) * 1967-09-25 1969-11-18 Monsanto Co Yarn jet apparatus
US3477220A (en) * 1967-10-04 1969-11-11 Kendall & Co Draftable novelty yarns and process therefor
US3526569A (en) * 1969-04-10 1970-09-01 Sohinder Nath Chopra Crinkled plastic ribbon
US4135511A (en) * 1976-06-04 1979-01-23 Phillips Petroleum Company Method for start up of a yarn crimping process
US4237187A (en) * 1979-02-26 1980-12-02 Allied Chemical Corporation Highly oriented, partially drawn, untwisted, compact poly(ε-caproamide) yarn
US4253299A (en) * 1979-05-03 1981-03-03 Phillips Petroleum Company Bulked and entangled multifilament thermoplastic yarn
US4861660A (en) * 1986-01-20 1989-08-29 Teijin Limited Stretchable synthetic polymer composite filament
US20040194267A1 (en) * 2003-03-31 2004-10-07 Willem Bakker Air-jet method for producing composite elastic yarns
US20040216287A1 (en) * 2003-03-31 2004-11-04 Willem Bakker Air-jet method for producing composite elastic yarns
US6848151B2 (en) * 2003-03-31 2005-02-01 Invista Norh America S.à.r.l Air-jet method for producing composite elastic yarns
US6880212B2 (en) 2003-03-31 2005-04-19 Invista North America S.A R.L. Air-jet method for producing composite elastic yarns
EP1541727A1 (de) * 2003-12-05 2005-06-15 Schärer Schweiter Mettler AG Verfahren zur Reduktion des Betriebsdrucks einer Texturierdüse und Garnbehandlungseinrichtung mit einer Texturierdüse

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DE1435374A1 (de) 1968-11-07
GB941931A (en) 1963-11-20

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