US3137911A - Apparatus for treating filament yarn - Google Patents

Apparatus for treating filament yarn Download PDF

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Publication number
US3137911A
US3137911A US80341A US8034161A US3137911A US 3137911 A US3137911 A US 3137911A US 80341 A US80341 A US 80341A US 8034161 A US8034161 A US 8034161A US 3137911 A US3137911 A US 3137911A
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Prior art keywords
yarn
wheel members
members
denticulated
wheel
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US80341A
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James E Bromley
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Monsanto Co
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Monsanto Co
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Priority to NL125123D priority Critical patent/NL125123C/xx
Priority to NL273140D priority patent/NL273140A/xx
Application filed by Monsanto Co filed Critical Monsanto Co
Priority to US80341A priority patent/US3137911A/en
Priority to GB45502/61A priority patent/GB950504A/en
Priority to DK526161AA priority patent/DK106812C/da
Priority to FR883667A priority patent/FR1319317A/fr
Priority to DEC25894A priority patent/DE1292302B/de
Priority to CH3662A priority patent/CH395419A/fr
Priority to BE612236A priority patent/BE612236A/fr
Priority to JP37000081A priority patent/JPS503407B1/ja
Application granted granted Critical
Publication of US3137911A publication Critical patent/US3137911A/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
    • D02G1/14—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using grooved rollers or gear-wheel-type members
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • D02J1/226—Surface characteristics of guiding or stretching organs

Definitions

  • This invention relates to a method and apparatus for processing cold-drawable textile filaments formed from a thermoplastic polymer to impart intermittent and random bulkiness thereto. More particularly, this invention relates to a method and apparatus for continuously stretching and continuously deforming parallel synthetic continuous textile filaments of the nylon type whereby such filaments are rendered bulky at intermittent and random points along the length thereof.
  • Man-made textile yarns are classified generally into two distinct types, each having its own properties and advantages over the other.
  • One type known as spun yarn is produced by cutting continuous filaments into staple lengths and spinning the resulting staple fibers into yarn by conventional processes in a manner similar to that used in spinning cotton and wool.
  • the spun yarns have the disadvantage of relatively low strength, and fabrics produced therefrom have a tendency to pill.
  • some of the advantages associated with spun yarns include enhanced capacity to adsorb moisture, greater insulating power, a softer hand, a toneddown luster.
  • the outer distinct type of man-made textile yarn is composed of filaments of extreme lengths and is known as continuous filament yarn. While continuous filament yarns have the advantage of greater evenness, superior strength, etc., they have several undesirable properties including low heat insulating values, lack of bulkiness, low covering power, etc.
  • This treatment includes simultaneously deforming and cooling the yarn immediately after the filaments are oriented by a hot drawing operation.
  • the filament yarn is fed continuously through a heat-stretch zone wherein the yarn is heated and stretched and from which the filaments are ed between intermeshing toothed wheel members.
  • the treated yarn is essentially uniformly textured throughout its length.
  • it is desirable to produce yarns of variable texture whereby to impart novelty effects to fabrics having aesthetic appeal in such end uses as dress goods, draperies, upholstery and the like.
  • An object of this invention is to provide a simple, rapid, and economical method for commercially producing a thermoplastic continuous multifilament or monofilament yarn exhibiting a random and intermittent bulk along its length.
  • Another object of this invention is to provide a simple and elfective apparatus for producing randomly and intermittently textured yarns.
  • FIGURE 1 is a schematic view in perspective with principal parts in location illustrating one arrangement of apparatus suitable for preparing the intermittently bulked yarns of this invention
  • FIGURE 2 is a fragmental view on a larger scale partly in axial section and partly diagrammatic illustrating with more particularity the yarn heating element of the apparatus herein disclosed;
  • FIGURE 3 is a detailed fragmental plan view illustrating an organization of two yarn-deforming denticulated wheel members and a fixed spacer bar, as well as two externally contacting spur gears operatively associated with the said members to drive the same;
  • FIGURE 4 is a perspective view illustrating a peripheral denticulation occurring in a random and interrupted sequence on the wheel members which are in closely spaced engagement;
  • FIGURE 5 illustrates a second pair of wheel members exhibiting a different peripheral denticulation
  • FIGURE 6 is a schematic view in front elevation with principal parts in location illustrating another arrangement of the apparatus of the present invention in which the stretched and deformed filaments can be subjected to an additional heat treatment while relaxed to enhance the texture therein;
  • FIGURE 7 is a drawing illustrating continuous multifilament yarn textured in accordance with the present invention.
  • FIGURE 8 illustrates a pair of tapered wheel members.
  • an improved stretching and deforming machine for processing nylon or like synthetic continuous filament yarn, the machine being constructed for highly efficient and economical operation.
  • a feed roll assembly and a set of drawing and randomly deforming toothed wheel members together with means for elevating the temperature of the yarn such as a heated draw or stretch pin, or heated plate, a heated tube, frictional heater, and the like interposed between the said roll assembly and the said members.
  • the yarn is fed to said feed roll assembly after being passed around or through a suitable tensioning device, if desired. At least one of the rolls is positively driven.
  • the objectives of the roll assembly are the provision of a supply of yarn at a predetermined rate and the provision that the yarn will not slip therethrough or therearound due to the stretch tension subsequently applied.
  • a pair of recurrently toothed wheel members driven in unison and intermeshing from time to time in close relationship without coming in contact with each other.
  • the wheel members have peripheral denticulations interrupted at intervals by smooth peripheral areas. At least one of said members is positively driven at a predetermined increased speed relative to the delivery speed of the roll assembly such that the yarn is stretched between the said roll assembly and the said members.
  • the yarn normally advancing in the heat-stretch zone defined by the roll assembly and the members and in which the yarn heating means is disposed ordinarily contacts the surface of the said heating means to raise the temperature of the yarn as desired with stretching of the filaments occurring continuously between the roll assembly and the members, including when the filaments are in contact with the yarn heating means where the attenuation of the filaments tends to be calized.
  • the yarn is directed in operation between the said members and, if desired, around part of the periphery of one of the members and thence around part of the periphery of a spaced apart roller or separator bar for a desired numer of times with the yarn taking a path that is progressively longitudinally forward with respect to the point where the said yarn initially is passed between the toothed wheel members.
  • the members not only serve to deform the filaments of the yarn in a random sequence but also function to cool rapidly or to quench and thereby to harden them as they pass therebetween.
  • the members are made preferably of heat conductive material.
  • the yarn After being stretched and randomly deformed in such manner, the yarn may be taken up in an orderly manner by suitable means.
  • the yarn after being stretched and deformed by the toothed wheel members but before collection thereof, is subjected to an elevated temperature while under little or no tension to cause the textured segments of the yarn to blossom into their full bulkiness.
  • commercial nylon yarn may be stretched at a draw ratio between 1.0 to 1.1 and 1.0 to 6.0 and deformed in accordance with the present invention without ditficulty at filament through-put speeds up to and above 1000 yards per minute.
  • thermoplastic cold-drawable yarn indicated by reference numeral 10 such as nylon and the like and composed of a bundle of smooth substantially parallel filaments that have not been fully oriented, is supplied from a yarn source. Since the yarn is not completely oriented, it is necessary to extend the yarn to be processed in order to obtain the optimum degree of molecular orientation therein.
  • the yarn source can be, for example, yarn package 11 previously doffed from a conventional filament-forming machine.
  • yarn 10 is passed over and around one end of bobbin 12 or other yarn holder, such as a pirn or cone holding a yarn source.
  • the yarn 10 is threaded conventionally around guiding bar 13 which functions as a simple, uncomplex tensioning device to assist in maintaining an orderly and uniform supply of yarn. It will be preceived readily that other tensioning devices such as a gate type can be used instead of the bar 13 shown or that the need of a tensioning device may be eliminated entirely.
  • the yarn 10 is passed through a yarn guide 14, if needed, and then to a rotatably arranged thread advancing means 15 that withdraws the yarn from bobbin 12 and supplies same at a controlled supply rate and that is operated at first delivery speed.
  • means 15 comprises a pair of suitably mounted feed rolls, at least one of which is positively driven.
  • the rolls have parallel axes and engage each other in operation to nip sufficiently the yarn passing therethrough so that slippage or free-flight of the yarn between the rolls is prevented or minimized.
  • the yarn 10 is led downwardly and around heated stretch or draw pin 16 where the majority of the attenuation of the yarn occurs.
  • the pin is mounted to be stationary and axially askew with respect to the axes of the feed rolls and has a smooth yarn contact surface, details of the pin being shown with more particularity in FIGURE 2.
  • the yarn 10 is directed downwardly between rotatably mounted and axially parallel wheel members 17 and 18 having a plurality of irregularly circumferentially spaced and longitudinally extending teeth or denticles 20 that randomly mesh in closely spaced adjustment, said members being spaced a short distance below pin 16.
  • the yarn preferably should be cooled and deformed by said members as soon as and as rapidly as practicable after it is hotstretched.
  • Members 17 and 18 are keyed to shafts 21 and 22, respectively, or are integral therewith.
  • external contacting spur gears 23 and 24 having horizontally parallel axes, that mesh and are fixedly mounted on shafts 21 and 22.
  • various segments of the traveling yarn are subjected to laterally applied strains increasing and decreasing in intensity as the yarn approaches and leaves the horizontal plane in which the axes of the said wheel members lie and where the said teeth engage in random, periodic fashion the narrow depressions between adjacent teeth to the greatest extent.
  • the yarn After being directed around part of the periphery of one of the members, the yarn is directed tangentially therefrom and then around part of the periphery of a roller 25 mounted on a suitable supporting frame for free rotation and positioned adjacent to roll 17.
  • a spacer bar fixedly mounted to a frame would be a suitable equivalent spacing means for roller 25.
  • the yarn 10 is preferably wound around member 17 and roller or spacing means 25 a plurality of times as shown in FIGURE 1, although good bulked yarn has been obtained by passing the hotstretched yarn only one time between members 17 and 18 in which case roller 25 becomes redundant structure and, hence, may be omitted.
  • the axis of said roller 25 is positioned at a slightly inclined angle with respect to the axes of members 17 and 18 so as to insure proper longitudinal distribution on and axial advancement along the peripheries of member 17 and roller 25, thus preventing superposition of the wraps thereon.
  • the temperature at which the yarn is directed between the wheel members progressively diminishes as the yarn moves longitudinally forward on wheel member 17.
  • the temperature at which the first deformation is conducted is more elevated than during subsequent reengagements of the yarn between the said Wheels.
  • the yarn after forming the outermost convolution is fed vertically downwardly through yarn pigtail guide 26 or the like, if needed, which is suitably mounted and located below the said wheel members.
  • the yarn is then taken up in an orderly arrangement in a conventional manner by a suitable form of package building apparatus.
  • the yarn 10 is taken up by a ring twisting assembly generally denoted by reference number 27 which comprises a bobbin 28 adapted to be rotated by a driven belt 30 in a conventional manner to collect a package of yarn 31.
  • the assembly further comprises a conventional vertically reciprocatable spinning ring 32 carrying a ring traveller 33 adapted to revolve freely about bobbin 38 as the yarn is twisted a desired amount and wound on the bobbin.
  • the yarn will tend to move outboard along said wheels instead of becoming accumulated and entangled thereon.
  • the Wheel members 17 and 18 are tapered, the yarn progresses longitudinally along these members in the direction of taper, the extent to which the yarn is deformed intermittently into corrugated shapes along its length as it passes between the members from the normally unbent shape will diminish.
  • the yarn being treated is subjected to a reduced tension between each successive engagement of the yarn and the wheel members.
  • the reduced tensioning may be attained by other means, such as by positioning the wheel members with respect to each other so that their axes slightly converge toward the direction of longitudinal movement of the yarn along the members.
  • FIGURE 2 where one form of a yarn braking device or stretch pin 16 which is sometimes called a snubbing pin is shown in more detail and which is employed according to the present invention, said pin being non-rotatably mounted, preferably in the position indicated in FIGURE 1.
  • the cross-section of the pin for best results is preferably circular but also may be elliptical or have any other suitable cross-sectional design. Since the yarn frictionally engages the surface of the pin as it travels therearound, the surface of yarn contact area thereof for best results is smooth or moderately smooth and is made of a mechanically very resistant-towear material.
  • the stretch pin 16 can be made of a' wide variety of wear resistant materials including stainless steel, chromium plated steel, aluminum, a bonded ceramic and the like. Preferably, it is made of aluminum flameplated with aluminum oxide or flame-plated with sintered tungsten carbide which is extremely resistant to wear and performs efficiently at the temperatures employed.
  • the stretch pin 16 is provided with heating means 35 so that the yarn passed therearound is heated to a predetermined elevated temperature.
  • the heating of the pin can be achieved in a suitable manner, e.g., by heated fluid inside thereof or by internal electric resistant heating which is preferred in view of its convenience in operation. It is also contemplated within the purview of the invention to provide a stretch pin with a high frequency heating means.
  • stretch pin 16 is provided with an electrically energizable heater element means 35, electrical power being supplied thereto through conductive lines 36 having a terminal plug 37 adapted for reception in a power outlet source.
  • the heater element may be embedded in the pin as shown or it may be part of a removable cartridge or insert. While there seems to be no theoretical limit for the diameter of pin 16, it is desirable to stay within a reasonable range from a practical standpoint.
  • FIGURE 3 where there is shown a frame 38 or mounting wall being adapted for suitable journalling of shafts 21 and 22 therein.
  • bearings 43 for supporting shafts 21 and 22 and for permitting free rotation thereof.
  • Rings 41 are adapted to register with said frame to prescribe the axial movement of said shafts.
  • Members 17 and 18, together with a pair of externally contacting spur gears 23 and 24, are mounted on shafts 21 and 22, said members being keyed fixedly thereto at 42 and 43.
  • At least one of said shafts is driven positively by a suitable drive mechanism, such as by an electric motor 44 (as shown), gearing belts, and the like.
  • gears 23 and 24 contact during operation, but teeth extending longitudinally of wheel members 17 and 18 are in close but spaced adjustment.
  • the lateral pressure applied to the yarn 10 passing between members 17 and 18 to deform same into a random and interrupted sequence of corrugated shape is applied mostly along the apices of teeth 20 and not in the grooves between the teeth or in the smooth peripheral areas separating the area of peripheral denticulations. This is accomplished, inter alia, by proper selection of the height and slope of the teeth, as well as the spacing of adjacent teeth relative to the area of peripheral denticulation and the spacing of the smooth peripheral areas.
  • the amplitude of the corrugation formed in the yarn is controlled, among other things, as a function of the height of teeth 20 and the extent to which the teeth engage the grooves.
  • the frequency of the corrugations and the sequence of the interrupted denticulations are controlled as a function of the number and particular arrangement of teeth disposed along the circumference of wheel members 17 and 18.
  • FIGURE 5 illustrates the employment of two wheels of different diameter and a denticulation pattern dilferent from that shown in FIGURE 4.
  • the denticulated area is less than half of the periphreal area of each wheel. Larger spacing of the textured yarn portions may be produced with such arrangement.
  • thermoplastic continuous filament yarn 10 which is not fully oriented is withdrawn from a yarn package 11 and is passed over one end of bobbin 12 or other yarn holder.
  • the yarn is passed around snubbing bar 13 and through a pigtail guide 14, after which it is led through a rotatably mounted feed roll assembly desig nated generally by numeral 45, said assembly comprising idler roll 46 having a rubber cot and idler roll 47 associated with driven roll 48.
  • Shaft 50 is attached at an end of roll 46 and is mounted at the other end at point 51 for pivotal movement of roll 46 about 51.
  • Coiled spring 52 is fixed at one end with the other end being attached to shaft 50 as indicated so as to bias swingable idler 46 into frictional engagement with roll 48.
  • the yarn is passed helically around driven feed roll 48 and idler roll 47 and then contacts heater plate 49, the surface of which is stationary and maintained at a suitable temperature.
  • the yarn then is passed through the randomly toothed wheel members 17 and 18 which are rotated normally at a greater peripheral speed than the peripheral speed of the driving roll 48, thereby tensioning and stretching the yarn between said feed roll assembly and said members.
  • the drawn yarn is passed helically about wheel 17 and separator roll 25.
  • the drawn, deformed thermoplastic filament yarn is subjected to a final heat treatment in a hot aqueous medium such as steam or by dry heat or combination of both in a relaxed or substantially relaxed condition.
  • a hot aqueous medium such as steam or by dry heat or combination of both in a relaxed or substantially relaxed condition.
  • This operation as mentioned above fully develops the potential texturability induced in the yarn by the prior operation and simultaneously sets the thus-developed texture, thereby imparting enhance bulkiness, crimpiness, and stretchability to the yarn.
  • the yarn is permitted to fall onto a conveying means 53, as for example an endless driven belt.
  • the yarn may be layed onto such a belt in a zig-zag pattern by means of a plaiting device (not shown).
  • Belt 53 carrying the yarn is passed through a heating zone in cabinet 54 having a radiant heat applicator means 55, such as an array of heating lamps, thus developing the crimpiness in the yarn.
  • a radiant heat applicator means 55 such as an array of heating lamps
  • the yarn is cooled. This may be accomplished by pasing the yarn without undesirable tensioning for a short distance through the air, excessive tension being avoided because the developed texture may be destroyed thereby.
  • the yarn is taken up in an orderly manner.
  • traverse guide 56 lays the treated yarn on a bobbin 57 surface driven by roller 58 to form a yarn package 60. It will be appreciated that the speed of yarn take-up on bobbin 57 will be coordinated properly with the delivery speed of the yarn on means 53 so that undue tensioning therebetween and excessive yarn accumulation on means 53 are prevented.
  • FIGURE 7 illustrates an intermittently textured yarn of the present invention having textured portions 61 and untextured portions 62.
  • the method of this invention comprises providing a source of not fully oriented continuous filament yarn in the form of a monofilament or bundle of filaments having little or no twist, the filaments being preferably nylon or the like.
  • the yarn is continuously passed through a stretching zone wherein the filaments are heated to an elevated temperature, such as by passing same around a heated stretch pin interposed in a zone.
  • portions of the filaments are deformed into a corrugated shape while being cooled by passing between the engagement of wheels having peripheral denticulations randomly interrupted by smooth peripheral areas. Portions of filaments may be redeformed into corrugated shapes a number of times by being passed between said wheels a corresponding number of times, each subsequent deformation occurring at a somewhat lower temperature.
  • the tension to which the yarn is subjected between each successive engagement of the yarn and the wheels may be decreased.
  • the yarn which has a variable texture and which possesses a markedly potential texturability is collected.
  • An additional operation whereby the texture may be developed fully includes subjecting the yarn while relaxed to a subsequent and additional heat treatment as above-described.
  • the method of the present invention is applicable to a wide variety of continuous filament yarns, the requirement being that the yarn is made from a thermoplastic fiber-forming resin and which can be extended by drawing and then show increased molecular orientation along the filament axis.
  • the yarns may be formed by known techniques from these resins, including melt extrusion, wet spinning processes, and dry spinning processes.
  • thermoplastic fiber-forming resins examples include polyethylene; polypropylene; polyurethanes; polycarbonates; copolymers of vinyl acetate and vinyl chloride; the copolymers of vinylidene chloride and a minor proportion of mono-olefinic compounds copolymerized therewith, such as, for example, vinyl chloride; homopolymers of acrylonitrile, copolymers of acrylonitrile and a minor proportion of at least one mono-olefinic compound copolymerized therewith and polymer blends containing combined acrylonitrile in a major proportion; copolymers of vinyl chloride and acrylonitrile; linear polyesters of aromatic dicarboxylic acids and dihydric compounds, such as polyethylene terephthalate and the polyester derived from terephthalic acid and bis-1,4-(hydroxymethyl) cyclohexane; linear polycarbonamides such as, for example, polyhexamethylene adipamide, poly
  • nylon including nylon 66, nylon 4, nylon 6, nylon C) 610, nylon 11, and their fiber-forrning copolymers thereof, e.g., 6/66, 6/610/66, 66/610, etc.
  • the resulting yarn has increased covering power, resiliency, and a crisp feel.
  • 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. It has been found that the yarn having the non-circular cross-section and whose bulk has been enhanced by the method and apparatus of the present invention is excellent for rugs and the like.
  • Twisted yarn can be processed as well as untwisted yarn, the requirement being that the yarn is not fully oriented. However, it is preferred to start with a source of yarn having zero twist or substantially no twist. Pretwisting of the yarn is generally unnecessary and for economic consideration is preferably avoided.
  • 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 completely suitable. Yarns having different compositions and deniers can be combined before being processed to produce novelty effects.
  • the temperature at which the yarn heating means is operated depends upon many factors including the type of yarn, the yarn linear speed, and the construction thereof.
  • the temperature of the yarn should be elevated preferably to a temperature below the temperature at which adjacent filaments will stick during the process. However, the temperature should be sufiicient so that the yarn will be deformed or distorted by the intermeshing of the teeth of the stretching wheels without undue filament breakage.
  • the temperature to which the yarn is subjected may be in the range of 150 C. to 250 C. when nylon 66 is processed.
  • the surface temperature of the yarn heating means will depend on the many factors, such as the denier of the yarn, the speed of the yarn, etc.
  • the yarns may possess a potential or latent texturability capable of being fully developed by a heat treatment while the yarn is relaxed.
  • the textured portions are highly bulked and highly crimped and the yarn is stretchable.
  • Bulk refers to the relative volume occupied by a given weight of yarn. Hence, yarn having increased bulk has greater covering power and warmth.
  • Crimped refers to the fact that in the textured portions the filaments contain many crimps, crinkles, curls, and the like which bend in and out in a sinuous pattern and which may be in one or more planes.
  • stretchable refers to the fact that the yarns produced in accordance with this invention are elastic to some extent and have the ability to accept a slight longitudinally applied stress and thereby to become easily extended without permanent elongation thereof. The extent of such elongation depends on what proportion of the length of yarn that is textured. It is preferred for some end uses to develop fully the potential texturability of the yarn after same has been converted into a textile article.
  • a novel characteristic of the yarn treated in accordance with the present invention is the fact that the yarn when dyed with certain types of dyes exhibit a variable dye-pickup along segments of the yarn.
  • a most novel effect is obtained in dyed fabric made from the yarn.
  • the deeper dyed portions of the yarn contrasted with lighter portions of the yarn imparts a truly speckled or mottled color to the fabric.
  • Example 1 The filaments used as a yarn source were prepared by melt spinning polyhexamethylene adipamide, the cross-section of which was Y-shaped. A yarn composed of 68 of these undrawn filaments, each of which had a denier of 60 and a twist of zero turns, was withdrawn from a source at 100 yards per minute by means of a pair of feed rolls. The yarn was led onto and around a stationary stretch pin one time. The surface temperature of the pin was maintined at 210 C. by an electric resistant heater located inside the pin and controlled by a thermistor temperature sensing control device. The yarn was fed between two metal toothed wheels meshing but not having contacting teeth.
  • the teeth were not uniformly spaced around the circumference of the wheel but smooth areas randomly separated the denticulated areas defined by the teeth.
  • the wheels were driven in unison at a predetermined speed so that a stretch of about 400 percent occurred in the yarn between the feed rolls and withdrawal from these wheels.
  • the yarn was passed through the wheels for an additional three times; before each pass the yarn was directed around a spaced roller. Thereupon the yarn was collected on a conventional ring twister take-up.
  • a fabric was woven from the yarn so treated.
  • the fabric was dyed with a dasic dye in a conventional manner.
  • the resulting fabric exhibited variable texture and a mottled color which were in every respect random in appearance.
  • the fabric possessed an aesthetic appeal.
  • the method results in the production of yarns having desirable intermittent bulk and is broadly applicable to produce such yarns from a wide range of cold-drawable filaments manufactured from thermoplastic resins.
  • the improved device for processing continuous filaments may be run at a high speed and requires little operator attention.
  • the construction and arrangement of the device make it possible to convert at moderate expense existing textile processing equipment, such as a draw-twister adapted for nylon processing, into a machine of the type disclosed and claimed herein.
  • the apparatus of the present invention can be adapted easily for the production of yarn having a random low texture to a random high texture.
  • the inherent properties of the treated yarn are such that they impart numerous and desirable effects in woven, nonwoven, and knitted fabrics made therefrom.
  • An apparatus for producing a novelty filament yarn made from a thermoplastic polymer whereby portions of the yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in combination, means for supplying a molecularly orientable synthetic continuous filament yarn made from a thermoplastic polymer from a source at a first rate, denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageably arranged in closely spaced adjustment, the pattern of denticulated interruptions of each of the wheel members being random with respect to the pattern of denticulated interruptions of the other wheel members said members being adapted to receive said yarn and to advance same at an increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said yarn supply means and said wheel members is attenuated thereby to increase the molecular orientation thereof, means between the supply means and said wheel members for elevating the temperature of said yarn, thereby to localize the attenuation of said yarn in its travel between
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of the yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in combination, a rotatably mounted thread advancing means adapted to supply a molecularly orientable synthetic continuous filament yarn made from a thermoplastic polymer from a source at a first rate, rotatably mounted denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageably arranged in closely spaced adjustment, the pattern of denticulated interruptions of each of the wheel members being random with respect to the pattern of denticulated interruptions of the other wheel members, said members being adapted to receive said yarn and to advance same at an increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing means and said wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation thereof, a yarn heating device for heating said yarn to a pre
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of said yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in combination, rotatably mounted thread advancing rolls adapted to supply a molecularly orientable synthetic continuous filament yarn from a source at a predetermined first rate, rotatably mounted denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas,
  • the pattern of denticulated interruptions of each of the wheel members being random with respect to the pattern of denticulated interruptions of the other wheel members, said members being adapted to receive said yarn and to advance same at a predetermined increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation thereof, a yarn heating device in the filament path between said thread advancing rolls and said wheel members provided with internal heating means and which said yarn contacts in operation at least once, thereby to localize the attenuation of said yarn and to impart heat to said yarn in its travel between said thread advancing rolls and said wheel members, a separator roll mounted adjacent said wheel members in spaced relation therewith and positioned so that its axis is disposed at a slight angle with respect to the axis of one of the wheel members, and means for taking up said yarn in an orderly manner after said yarn has passed between said
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of said yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in
  • rotatably mounted thread advancing rolls adapted to supply a molecularly orientable synthetic continuous filament yarn from a source at a predetermined first rate
  • rotatably mounted denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageable in closely spaced adjustment, the pattern of denticulated interruptions of each of the wheel members being random with respect to the pattern of denticulated interruptions of the other wheel members, said members being adaped to receive said yarn and to advance same at a predetermined increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation thereof, a nonrotatably mounted yarn stretch pin in the filament path between said thread advancing rolls and said wheel members having a smooth wear resistant filament contact surface and around which said yarn is wrapped in operation, electrically energizable means for heating said pin internally,
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of said yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in combination, rotatably mounted thread advancing rolls adapted to supply a molecularly orientable nylon continuous filament yarn from a source at a predetermined first rate and to nip yarn therebetween, a pair of rotatably mounted denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageable in closely spaced adjustment, the pattern of denticulated interruptions of one wheel member being random with respect to the pattern of denticulated interruptions of the other wheel member, said members being adapted to receive said yarn and to advance same at a predetermined increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation thereof, means to drive said pair of wheel members in
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of said yarn have potential texturability of varying lengths randomly disposed along the length thereof comprising, in combination, rotatably mounted thread advancing rolls adapted to supply a molecularly orientable nylon continuous filament yarn from a source at a predetermined first rate, a pair of denticulated wheel members having horizontally disposed parallel axes and peripheral axiallyextending denticulations interrupted at random intervals by smooth peripheral areas, each member being fixedly mounted on separate shafts journaled in a supporting frame, the denticles of said wheel members being engageable in closely spaced adjustment, the pattern of denticulated interruptions of one wheel member being random with respect to the pattern of denticulated interruptions of the other wheel member, said members being adapted to receive said yarn and to advance same at a predetermined increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said Wheel members is attenuated to a predetermined extent thereby to increase the
  • the apparatus as set forth in claim 10 further characterized in that the apparatus includes means for imparting rotation to at least one of said shafts.
  • said thread advancing rolls comprise three rolls, one of which is adapted to be positively driven with the other two being idler rolls mounted for free rotation, one of said idler rolls being pivotally mounted about a point and spring biased into rotating engagement with the driven roll.
  • An apparatus for producing novelty filament yarn made from a thermoplastic polymer whereby portions of said yarn have enhanced texture of varying lengths randomly disposed along the length thereof comprising, in combination, means for supplying a molecularly orientable synthetic continuous filament yarn made from a thermoplastic polymer from a source at a first rate, denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageable in closely spaced adjustment, the pattern of denticulated interruptions of each of the wheel members being random with respect to the pattern of denticulated interruptions of the other wheel members, said members being adapted to receive said yarn and to advance same at an increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said yarn supply means and said wheel members is attenuated thereby to increase the molecular orientation thereof, means between said yarn supply means and said wheel members for elevating the temperature of said yarn, thereby to localize the attenuation of said yarn in its travel between said yarn supply means
  • An apparatus for producing novelty filament yarn made from a nylon polymer whereby portions of said yarn have enhanced texture of varying lengths randomly disposed along the length thereof comprising, in combination, rotatably mounted thread advancing rolls adapted to supply a molecularly orientable nylon continuous filament yarn from a source at a predetermined first rate, a pair of rotatably mounted denticulated wheel members having peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageable in closely spaced adjustment, the pattern of denticulated interruptions of one wheel member being random with respect to the pattern of denticulated interruptions of the other wheel member, said members being adapted to receive said yarn and to advance same at a predetermined increase rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation thereof, means to drive said pair of wheel members in unison, a yarn heating device for heating said
  • An apparatus for producing novelty filament yarn made from a nylon polymer whereby portions of said yarn have enhanced texture of varying lengths randomly disposed along the length thereof comprising, in combination, rotatably mounted thread advancing rolls adapted to supply a molecularly orientable nylon continuous filament yarn from a source at a predetermined first rate, a pair of denticulated Wheel members having horizontally disposed parallel axes and peripheral axially-extending denticulations interrupted at random intervals by smooth peripheral areas, the denticles of which are engageable in closely spaced adjustment, the pattern of denticulated interruptions of one wheel member being random with respect to the pattern of denticulated interruptions of the other wheel member, each member being fixedly mounted on separate shafts journaled in a supporting frame, said members being adapted to receive said yarn and to advance same at a predetermined increased rate as compared to the supply rate of said yarn, whereby the yarn normally advancing between said thread advancing rolls and said Wheel members is attenuated to a predetermined extent thereby to increase the molecular orientation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US80341A 1961-01-03 1961-01-03 Apparatus for treating filament yarn Expired - Lifetime US3137911A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
NL125123D NL125123C (en, 2012) 1961-01-03
NL273140D NL273140A (en, 2012) 1961-01-03
US80341A US3137911A (en) 1961-01-03 1961-01-03 Apparatus for treating filament yarn
GB45502/61A GB950504A (en) 1961-01-03 1961-12-19 Method and apparatus for treating filament yarn
DK526161AA DK106812C (da) 1961-01-03 1961-12-30 Fremgangsmåde og apparat til deformering af termoplastiske filamenter.
FR883667A FR1319317A (fr) 1961-01-03 1962-01-02 Procédé pour produire une texture discontinue dans des fils de filaments continus en polymères thermoplastiques et appareils pour sa mise en oeuvre
DEC25894A DE1292302B (de) 1961-01-03 1962-01-03 Vorrichtung zum Verstrecken und Kraeuseln von Faeden aus thermoplastischen Polymeren
CH3662A CH395419A (fr) 1961-01-03 1962-01-03 Procédé de fabrication d'un fil fantaisie formé de filaments thermoplastiques continus et appareil pour sa mise en oeuvre
BE612236A BE612236A (fr) 1961-01-03 1962-01-03 Procédé pour produire une texture discontinue dans des fils de filaments continus en polymères thermoplastiques et appareils pour sa mise en oeuvre.
JP37000081A JPS503407B1 (en, 2012) 1961-01-03 1962-01-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80341A US3137911A (en) 1961-01-03 1961-01-03 Apparatus for treating filament yarn

Publications (1)

Publication Number Publication Date
US3137911A true US3137911A (en) 1964-06-23

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US80341A Expired - Lifetime US3137911A (en) 1961-01-03 1961-01-03 Apparatus for treating filament yarn

Country Status (8)

Country Link
US (1) US3137911A (en, 2012)
JP (1) JPS503407B1 (en, 2012)
BE (1) BE612236A (en, 2012)
CH (1) CH395419A (en, 2012)
DE (1) DE1292302B (en, 2012)
DK (1) DK106812C (en, 2012)
GB (1) GB950504A (en, 2012)
NL (2) NL273140A (en, 2012)

Cited By (13)

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Publication number Priority date Publication date Assignee Title
US3192597A (en) * 1963-08-21 1965-07-06 Monsanto Co Yarn texturing apparatus and method
US3241305A (en) * 1962-11-23 1966-03-22 Monsanto Co Textured yarn
US3287783A (en) * 1963-06-13 1966-11-29 Klinger Mfg Co Ltd Yarn crimping apparatus
US3329757A (en) * 1963-12-26 1967-07-04 Monsanto Co Method of texturing filament yarn
US3330018A (en) * 1965-02-11 1967-07-11 Duplan Corp Method of making crimped yarn
US3398220A (en) * 1964-06-26 1968-08-20 Parker Pace Corp Process for converting a web of synthetic material into bulk yarns
US3417446A (en) * 1965-11-16 1968-12-24 Ici Ltd Method and apparatus of gear crimp
US3425206A (en) * 1963-11-12 1969-02-04 Monsanto Co Dyed intermittently textured yarn
US3686723A (en) * 1970-11-13 1972-08-29 Ici Ltd Gears for crimping yarn
US4383404A (en) * 1981-08-26 1983-05-17 Milliken Research Corporation Method and apparatus to produce post heated textured yarn
US4472220A (en) * 1981-11-12 1984-09-18 Camac Corporation Textile detexturizing system
US5890355A (en) * 1996-03-25 1999-04-06 Zinser Textilmaschinen Gmbh Method of and apparatus for producing thick/thin effects in an incompletely-oriented filamentary precursor yarn
CN114045593A (zh) * 2021-11-19 2022-02-15 平顶山神马帘子布发展有限公司 一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5198924U (en, 2012) * 1975-02-05 1976-08-09
DE3328477A1 (de) * 1983-08-06 1985-02-21 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Verfahren und anordnung zur herstellung eines ungezwirnten kraeuselgarns aus mindestens zwei fadenbuendeln unterschiedlicher farbe oder faerbbarkeit
JP6952470B2 (ja) * 2017-02-02 2021-10-20 日機装株式会社 中空糸膜クリンプ付与装置及び中空糸膜クリンプ付与方法

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US2385894A (en) * 1944-04-12 1945-10-02 American Viscose Corp Handling filamentary materials
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
GB780755A (en) * 1954-11-19 1957-08-07 Ici Ltd Manufacture of artificial filaments, yarns and fibres
US2975474A (en) * 1958-06-11 1961-03-21 Du Pont Process and apparatus for preparing novelty yarns
US2988799A (en) * 1956-09-24 1961-06-20 Burlington Industries Inc Process for treating yarns, filaments and fibers
US3023481A (en) * 1958-11-25 1962-03-06 Scragg & Sons Yarn crimping apparatus
US3024516A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Apparatus for treating filament yarn
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn
US3034196A (en) * 1960-03-18 1962-05-15 Du Pont Alternately crimped staple fiber

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US2394165A (en) * 1943-04-23 1946-02-05 Getaz James Louis Processing of synthetic fibers
DE943191C (de) * 1950-02-08 1956-05-17 Phrix Werke Ag Verfahren und Vorrichtung zum kontinuierlichen, stufenweisen Verstrecken endloser Faeden aus organischen Hochpolymeren
GB735027A (en) * 1952-03-28 1955-08-10 Ici Ltd Improvements in artificial yarns and fibres
AT187621B (de) * 1953-09-04 1956-11-10 Onderzoekings Inst Res Vorrichtung zur Herstellung eines Kunstfadens aus Viscose mit wechselndem Titer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2385894A (en) * 1944-04-12 1945-10-02 American Viscose Corp Handling filamentary materials
US2669001A (en) * 1949-09-29 1954-02-16 Collins & Sikman Corp Method and apparatus for treating yarns
GB780755A (en) * 1954-11-19 1957-08-07 Ici Ltd Manufacture of artificial filaments, yarns and fibres
US2988799A (en) * 1956-09-24 1961-06-20 Burlington Industries Inc Process for treating yarns, filaments and fibers
US2975474A (en) * 1958-06-11 1961-03-21 Du Pont Process and apparatus for preparing novelty yarns
US3023481A (en) * 1958-11-25 1962-03-06 Scragg & Sons Yarn crimping apparatus
US3024516A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Apparatus for treating filament yarn
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn
US3034196A (en) * 1960-03-18 1962-05-15 Du Pont Alternately crimped staple fiber

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241305A (en) * 1962-11-23 1966-03-22 Monsanto Co Textured yarn
US3287783A (en) * 1963-06-13 1966-11-29 Klinger Mfg Co Ltd Yarn crimping apparatus
US3192597A (en) * 1963-08-21 1965-07-06 Monsanto Co Yarn texturing apparatus and method
US3425206A (en) * 1963-11-12 1969-02-04 Monsanto Co Dyed intermittently textured yarn
US3329757A (en) * 1963-12-26 1967-07-04 Monsanto Co Method of texturing filament yarn
US3398220A (en) * 1964-06-26 1968-08-20 Parker Pace Corp Process for converting a web of synthetic material into bulk yarns
US3330018A (en) * 1965-02-11 1967-07-11 Duplan Corp Method of making crimped yarn
US3417446A (en) * 1965-11-16 1968-12-24 Ici Ltd Method and apparatus of gear crimp
US3686723A (en) * 1970-11-13 1972-08-29 Ici Ltd Gears for crimping yarn
US4383404A (en) * 1981-08-26 1983-05-17 Milliken Research Corporation Method and apparatus to produce post heated textured yarn
US4472220A (en) * 1981-11-12 1984-09-18 Camac Corporation Textile detexturizing system
US5890355A (en) * 1996-03-25 1999-04-06 Zinser Textilmaschinen Gmbh Method of and apparatus for producing thick/thin effects in an incompletely-oriented filamentary precursor yarn
CN114045593A (zh) * 2021-11-19 2022-02-15 平顶山神马帘子布发展有限公司 一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法
CN114045593B (zh) * 2021-11-19 2023-02-03 平顶山神马帘子布发展有限公司 一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法

Also Published As

Publication number Publication date
JPS503407B1 (en, 2012) 1975-02-04
NL273140A (en, 2012)
NL125123C (en, 2012)
DK106812C (da) 1967-03-20
DE1292302B (de) 1969-04-10
CH395419A (fr) 1965-07-15
GB950504A (en) 1964-02-26
BE612236A (fr) 1962-07-03

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