US3092890A - Textured multilobal filament yarn - Google Patents

Textured multilobal filament yarn Download PDF

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Publication number
US3092890A
US3092890A US70807A US7080760A US3092890A US 3092890 A US3092890 A US 3092890A US 70807 A US70807 A US 70807A US 7080760 A US7080760 A US 7080760A US 3092890 A US3092890 A US 3092890A
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United States
Prior art keywords
yarn
filaments
lobes
textured
circle
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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
US70807A
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English (en)
Inventor
James E Bromley
William H Hills
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 Chemicals Ltd
Monsanto Chemical Co
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Monsanto Chemicals Ltd
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 Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to US70807A priority Critical patent/US3092890A/en
Priority to GB41283/61A priority patent/GB925732A/en
Priority to ES0272182A priority patent/ES272182A1/es
Priority to AT876861A priority patent/AT256322B/de
Priority to BE610574A priority patent/BE610574A/fr
Priority to DE1435392A priority patent/DE1435392B2/de
Application granted granted Critical
Publication of US3092890A publication Critical patent/US3092890A/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
    • 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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/04—Floor or wall coverings; Carpets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49078—Laminated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24446—Wrinkled, creased, crinkled or creped
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24636—Embodying mechanically interengaged strand[s], strand-portion[s] or strand-like strip[s] [e.g., weave, knit, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2976—Longitudinally varying

Definitions

  • This invention relates to continuous multilobal filament yarn made from thermoplastic resins and exhibiting a flutfy character and an enhanced texture having aesthetic appeal.
  • the present invention has to do particularly with a textured continuous filament yarn whereby the change in surface dimensions or texture thereof is obtained by putting random sinusoidal crimps in such yarn.
  • a textured yarn characterized as a crimped type of bulked yarn and presently having notable commercial acceptance is produced by feeding continuous filament thermoplastic yarn into a stufier box and by removing same therefi'om. By compressing the yarn into the stulfer box, the individual filaments are caused to fold or bend at a sharp angle. While in the folded condition the yarn is heat-set. The yarn is removed from the box and has an irregular, zig-zag crimp that imparts to the yarn increased volume, increased elasticity, etc.
  • Another commercial texturing operation wherein bulking is accomplished by crimping the yarn also utilizes the stutter box technique to induce substantially permanent crimps in the yarn.
  • This second operation involves crimping a large number of ends in warp form followed by heat-setting of the yarn in an autoclave.
  • the yarns textured by the just described methods are characterized by the sharp elbows between the arms of the crimps induced in the yarn. That is to say, that the crimps may be regarded as a shaped configuration with the crimps defining a sharply acute angle with each other. Obviously such type of crimp formation imparts a rather harsh hand to fabric made from yarn containing such crimp. Moreover, these known crimping procedures unfortunately lower the strength of the yarn to a notable degree.
  • Another object of this invention is to provide woven and knitted fabrics and other textile articles exhibiting a pleasant hand and constructed from filaments having a multilobal cross section and having been treated so as to impart thereto enhanced bulkiness.
  • the objects of the invention are accomplished by providing multilobal filaments prepared from a synthetic polymer and textured in a particular manner such that the filaments are crimped with the crimps assuming a curve of sines.
  • the lobes of the filaments along the lengths thereof are randomly displaced or bent from a normally substantially symmetrical arrangement to a non-symmetrical curvilinear arrangement.
  • one or more lobes are longer than the other lobes, although all the lobes may be of about the same length if desired.
  • Multilobal filaments may be considered as having a body section and a plurality of finned sections or legs integrally joined to said body section and radially disposed upon the surface of and extending longitudinally of the body, such as yarn of X- or Y-shaped cross section.
  • the number of lobes may be two, three, four, or more, and such multilobal filaments are prepared by conventional methods, such as by employing during spinning a spinneret adapted to produce filaments having the desired number of lobes.
  • FIGURE 1 is a schematic view in perspective with principal parts in location illustrating one arrangement of apparatus suitable for preparing the textured filaments of this invention
  • FIGURE 2 is an enlarged representation of a cross section of one form of filament having the symmetrical arrangement of lobes capable of being displaced randomly to a non-symmetrical arrangement by the apparatus shown in FIGURE 1;
  • FIGURE 3 is an enlarged representation of a cross section of one form of filament, showing a displacement of the long lobe of a Y-shaped yarn by the apparatus disclosed herein;
  • FIGURE 4 is an enlarged representation of a cross section of one form of filament, showing a displacement of one of the short lobes of a Y-shaped yarn by the apparatus disclosed herein;
  • FIGURE 5 is an enlarged view of one multilobal filament of the present invention, illustrating the sinusoidal crimp and the random curvilinear displacement of one of the lobes;
  • FIGURE 6 is a sketch of the textured yarn of the present invention, showing its fiufiy, crimpy, voluminous character and further illustrates the sinusoidal crimp therein;
  • FIGURE 7 is an enlarged representation of cross sections of a bundle of filaments, showing the displacement of one of the lobes of a Y-shaped yarn and illustrating the random degree of displacement from one filament to the other at a given point along the length of the bundle.
  • thermoplastic cold-drawable yarn indicated by numeral 10 such as nylon and the like, and composed of a bundle of smooth substantially parallel multilobal 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 spinning machine.
  • Yarn 1G 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 1b is threaded conventionally around snubbing bar 13 which functions as a simple, uncomplex tensioning device to assist in maintaining an orderly and uniform supply of yarn.
  • tensioning devices such as the gate type can be used instead of the tension device shown or that the need of a tensioning device may be eliminated entirely.
  • the yarn 10 is led downwardly and around heated stretch or draw pin 1% which heats the yarn and tends to localize the attenuation of the yarn.
  • 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.
  • the yarn it! is directed downwardly between rotatably mounted and axially parallel wheel members 17 and 18 having a plurality of uniformly circumferentiallyspaced and longitudinally extending teeth 1? that mesh in closely spaced adjustment, said members being spaced a short distance below pin 16.
  • Air impelling means 20 may be provided to keep the members 17 and 13 at a sufficiently low temperature that the yarn is cooled so that heat-setting of the yarn is accomplished during the first pass of the yarn between members 17 and 13.
  • Members 17 and 18 are keyed to shafts 21 and 22 respectively or are integral therewith.
  • the teeth 19 mesh the yarn is subjected to laterally applied strains increasing and'decreasing in intensity as the yarn approaches and leaves the horizontal plane in which the axes of said 'wheel members lie and where said teeth engage the notches defined by said 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 supporting frame for free rotation and positioned adjacent member 17.
  • a spacer bar fixedly mounted to a frame may be a suitably equivalent spacing means for roller 25.
  • the yarn it) is wound around member 17 and roller or spacing means 25 a plurality of times as shown in FIGURE 1 so that the yarn is properly gripped to assure proper attenuation of the yarn, the peripheral speed of members 17 and 18 in operation being substantially greater than that of means 15.
  • 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 advancement along the peripheries of member 17 and roller 25, thus preventing superposition of the wraps thereon.
  • 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 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 It is taken up by a ring twisting assembly generally denoted by reference number 27 which comprises a bobbin 2% adapted to be rotated by driven belt 30 in a conventional manner to collect a supply of the yarn indicated by numeral 31.
  • the assembly further comprises a conventional vertically reciprocatable spinning ring 32 carrying a ring traveller 33 adapted to revolve freely about the bobbin 2% as the yarn is twisted a desired amount and wound on the bobbin.
  • FIGURE 2 a Y-shaped filament having one leg longer than the other is shown.
  • Circle A having a radius R circumscribes the Y-shapedfilament 34 illustrated in cross section.
  • circle 3 Inscribed within the cross-sectional configuration is a circle 3 having a radius R.
  • circle B is eccentric with respect to circle A.
  • the straight line distance between the center of circle A and the center of circle B is indicated as AC. It is desirable that the degree of eccentricity be at least 10 percent and up to 60 percent or more.
  • the degree of eccentricity is the number obtained by the following expression:
  • FIGURE 3 illustrates'the bending of the long leg away from its normal position assumed during the production or" the filament, the bending being the result of the tex-turiug operation using the above-described apparatus.
  • Line 35 extends from the tip of the long leg to the center of the circumscribable circle (not shown).
  • Line 36 extends from the tip of the long leg in its displaced position and to the center of such circumsoribab le circle. These lines intersect to form an angle a which varies from 0 to about 45.
  • the variation of the angle a of the filaments textured by the hereindescribed apparatus is random among the filaments and is curvilinear along the length of a given filament. This results in the improved aesthetic appearance of the novel filaments of the present invention.
  • FIGURE 4 illustrates the bending of one of the shorter legs toward the other short leg and away from its normal position assumed during the production of the filament, the bending being the result of the texturing operation using the above-described apparatus.
  • Line 37 extends from the tip of the leg to the center of the circumscribable 'markedly potentially crimpable.
  • Line 38 extends from the tip of the leg in its displaced position and to the center of such circle. These lines intersect to form an angle a as above.
  • FIGURE shows the sinusoidal or curved appearance of an individual filament 49, as formed according to the present invention.
  • the bending of the lobes has been found to modify the luster highlight associated with multilobal filaments in a most advantageous manner.
  • the point of maximum bending of lobe 41 occurs at about the apices of the crimp and the point of minimum bending of lobe 41 occurs at about midway between successive apices.
  • FIGURE 7 shows how the angle a may vary among adjacent filaments at any point along the length of the filaments.
  • angle a for any of the lobes of cross section 42 is substantially zero.
  • the long leg of cross section 43 is bent to a readily noticeable extent. Other degrees of bending can be seen in this figure.
  • Such potential crimp can be fully developed by subjecting the drawn, deformed thermoplastic filament yarn to a final heat treatment in a hot aqueous medium such as steam or by heat or combination of both in a relaxed or substantially relaxed condition.
  • This post heat-relax operation as just indicated develops the potential crimpability induced in the yarn by the prior operation and simultaneously sets the thus-developed crimp, thereby imparting enhanced bulkiness, crimpiness and stretchability to the yarn.
  • the filaments of the present invention can be made from a wide variety of thermoplastic fiber-forming resins.
  • the yarns can be formed by known techniques from these resins, including melt extrusion, wet spinning processes, and dry spinning processes.
  • fiber-form- 'ing synthetic polymers which are included in the thermoplastic fiber-forming resins may be mentioned polyethylene; polypropylene; polyurethanes, copolymers of vinyl acetate and vinyl chloride; the copolymers of vinylidene chloride and a minor proportion of mono-olefinic compounds copoly-merized therewith, such as, for example, vinyl chloride; homopolymers of acrylonitrile, copolymers of acrylonitrile and a minor proportion of at least one monoolefinic 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
  • Twisted yarn can be processed as well as untwisted yarn. 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 140 C. to 240 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 and the speed of the yarn.
  • the yarns of this invention are elastic and have the ability to accept a slight longitudinally applied stress and thereby to become easily extended a considerable length without permanent elongation thereof.
  • the yarn can be elongated 10 to percent or more from its untensioned or relaxed length and immediately recover from this elongation in the nature of the so-called stretch-yarns. It is preferred for some end uses to develop the potential crimpability of the yarn after same has been converted into a textile article.
  • the stretched and deformed yarn prior to the final heat treatment advantageously may be tufted into a carpet after which the heat treatment is applied.
  • the tufts of yarn disposed on the face of the carpet will bulk to a notable extent, thereby imparting more luxurious appearance to the carpet.
  • Example 1 The filaments used as a yarn source were prepared by melt spinning polyhexamethylene adipami-de, 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 per inch, was Wound (from a spinning machine) onto 'a bobbin for treatment. The degree of eccentricity of the circles inscribable and circumscribable in and around a cross section of the filaments was 17 percent.
  • Apparatus corresponding to that in FIGURE 1 was used to treat the yarn.
  • the yarn was unwound for treatment from the bobbin by passing same through a pair of positively driven feed rolls, the rate of withdrawal a plastic resins.
  • the yarn was led onto and around a stationary stretch pin one time, the yarn movement describing a helical path therearound.
  • the surface temperature of the pin was maintained 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 wheels were driven in unison at a predetermined speed so that a stretch of about 350 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 assembly.
  • a tufted carpet was produced from the yarn so treated.
  • the carpet was subjected to live steam at an elevated temperature of 130 C., thereby developing the potential crimpability therein.
  • the resulting carpet had a fluffy, bulky appearance and possessed an aesthetic appeal.
  • the angle a as measured above in cross sections of the yarn varied randomly along the length of the filaments.
  • Yarns having desirable bulk characteristics are provided from a Wide range of cold-drawable filaments manufactured from thermo-
  • the inherent properties of the treated yarn are such that they impart numerous and desirable properties in woven, non-woven, and knitted fabrics.
  • Yarns composed of the novel multilobal cross section and having sinusoidal crimps of the present invention have increased resiliency and enhanced covering power with a very pleasant and warm hand.
  • a textured filament yarn prepared from a synthetic thermoplastic polymer and having a multilobal cross section along the length of the filaments thereof characterized by having crimps assuming a curve of sines, the apices of said crimps of the individual filaments being located in a haphazard relation with respect to each other thereby to impart a fluffy appearance to the yarn, and further characterized by lobes of the filaments having been randomlybent along the lengths thereof from a normally substantially symmetrical arrangement to a non-symmetrical curvilinear arrangement, the angle formed by aline drawn between the tips of the bent lobes in the normally unbent position and the center of a circumscribable circle of said cross section intersecting a line drawn between the tips of the bent lobes in the bent position and the center of said circle being in the range of -45".
  • a textured filament yarn prepared from a synthetic thermoplastic polymer and having a trilobal cross section along the length of the filaments, the lobes of which are normally substantially equi-spaced, characterized by having crimps assuming a curve of sines, the apices of said crimps of the individual filaments being located in a haphazard relation with respect to each other thereby to impart a fluify appearance to the yarn, and further characterized by lobes of the filaments having been randomly bent along the lengths thereof from a normally substantially symmetrical arrangement to an non-symmetrical curvilinear arrangement, the angle formed by a line drawn between the tips of the bent lobes in the normally unbent position and the center of a circumscribable circle of said cross section intersecting a line drawn between the tips of the bent lobes in the bent position and the center of said circle being in the range of 045.
  • a textured filament yarn prepared from a synthetic thermoplastic polymer and having a trilobal cross section along the length of the filaments, the lobes of which are normally substantially equi-spaced, characterized by having crimps assuming a curveof sines, the apices of said crimps of the individual filaments being located in a haphazard relation with respect to each other thereby to impart a fluffy appearance to the yarn, further characterized by lobes of the filaments having been randomly bent along the lengths thereof from a normally substantially symmetrical arrangement to a non-symmetrical curvilinear arrangement, the maximum bending of the bent lobes occurring at about the apices of the crimp and the minimum bending thereof occurring at about midway between successive apices, the angle formed by a line drawn between the tips of the bent lobes in the normally unbent position and the center of a circumscribable circle of the said cross section intersecting a line drawn between the tips of the bent lobes in the bent position and the
  • a knitted textile fabric prepared from the yarn of claim 2.
  • a woven textile fabric prepared from the yarn of claim 2'. i I l 13. A floor covering material manufactured from the yarn of claim 2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Carpets (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US70807A 1960-11-21 1960-11-21 Textured multilobal filament yarn Expired - Lifetime US3092890A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US70807A US3092890A (en) 1960-11-21 1960-11-21 Textured multilobal filament yarn
GB41283/61A GB925732A (en) 1960-11-21 1961-11-17 Textured multilobal filament yarn
ES0272182A ES272182A1 (es) 1960-11-21 1961-11-20 Perfeccionamientos en hebras de filamentos modificados de polimero sintetico termoplastico
AT876861A AT256322B (de) 1960-11-21 1961-11-21 Kräuselgarn und Verfahren zur Herstellung desselben
BE610574A BE610574A (fr) 1960-11-21 1961-11-21 Fil texturé de filaments multilobaires
DE1435392A DE1435392B2 (de) 1960-11-21 1961-11-21 Verfahren zum Herstellen eines eine latente Kräuselung aufweisenden, synthetischen Garnes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70807A US3092890A (en) 1960-11-21 1960-11-21 Textured multilobal filament yarn

Publications (1)

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US3092890A true US3092890A (en) 1963-06-11

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US70807A Expired - Lifetime US3092890A (en) 1960-11-21 1960-11-21 Textured multilobal filament yarn

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US (1) US3092890A (fr)
AT (1) AT256322B (fr)
BE (1) BE610574A (fr)
DE (1) DE1435392B2 (fr)
ES (1) ES272182A1 (fr)
GB (1) GB925732A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142147A (en) * 1959-03-09 1964-07-28 Monsanto Co Voluminous yarn from synthetic continuous thermoplastic filaments
US3194002A (en) * 1962-07-25 1965-07-13 Eastman Kodak Co Multifilament yarn of non-regular cross section
US3217376A (en) * 1962-11-23 1965-11-16 Monsanto Co Yarn crimping apparatus
US3234596A (en) * 1962-12-26 1966-02-15 Monsanto Co Apparatus for spinning special yarns
JPS4942205U (fr) * 1972-07-26 1974-04-13
JPS5117326A (en) * 1974-07-31 1976-02-12 Kuraray Co T gataikeidanmenseni oyobi sonoseizoho
JPS5259723A (en) * 1975-11-05 1977-05-17 Kuraray Co Ltd Crimped yarns with t-sharped cross section and their preparation
US4495244A (en) * 1983-11-21 1985-01-22 Eastman Kodak Company Continuous filament slub yarn
US5628736A (en) * 1994-04-29 1997-05-13 The Procter & Gamble Company Resilient fluid transporting network for use in absorbent articles
US6875314B2 (en) * 2002-02-01 2005-04-05 Heimbach Gmbh & Co. Paper machine clothing, particularly a press felt
WO2021257735A1 (fr) * 2020-06-16 2021-12-23 Aladdin Manufacturing Corporation Fil mou à grande résistance à l'usure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552595A (en) * 1975-09-29 1979-09-19 Ici Ltd Drawing and crimping a synthetic yarn
CN111118635B (zh) * 2019-12-29 2021-08-13 江苏恒力化纤股份有限公司 医用抗菌织物用纤维及其制备方法

Citations (3)

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US2945739A (en) * 1955-06-23 1960-07-19 Du Pont Process of melt spinning
US2968857A (en) * 1957-07-30 1961-01-24 Celanese Corp High bulk filamentary material and methods of producing the same
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn

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Publication number Priority date Publication date Assignee Title
US2945739A (en) * 1955-06-23 1960-07-19 Du Pont Process of melt spinning
US2968857A (en) * 1957-07-30 1961-01-24 Celanese Corp High bulk filamentary material and methods of producing the same
US3024517A (en) * 1959-05-18 1962-03-13 Chemstrand Corp Method of treating filament yarn

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142147A (en) * 1959-03-09 1964-07-28 Monsanto Co Voluminous yarn from synthetic continuous thermoplastic filaments
US3194002A (en) * 1962-07-25 1965-07-13 Eastman Kodak Co Multifilament yarn of non-regular cross section
US3217376A (en) * 1962-11-23 1965-11-16 Monsanto Co Yarn crimping apparatus
US3234596A (en) * 1962-12-26 1966-02-15 Monsanto Co Apparatus for spinning special yarns
JPS4942205U (fr) * 1972-07-26 1974-04-13
JPS5117326A (en) * 1974-07-31 1976-02-12 Kuraray Co T gataikeidanmenseni oyobi sonoseizoho
JPS5259723A (en) * 1975-11-05 1977-05-17 Kuraray Co Ltd Crimped yarns with t-sharped cross section and their preparation
US4495244A (en) * 1983-11-21 1985-01-22 Eastman Kodak Company Continuous filament slub yarn
US5628736A (en) * 1994-04-29 1997-05-13 The Procter & Gamble Company Resilient fluid transporting network for use in absorbent articles
US6875314B2 (en) * 2002-02-01 2005-04-05 Heimbach Gmbh & Co. Paper machine clothing, particularly a press felt
WO2021257735A1 (fr) * 2020-06-16 2021-12-23 Aladdin Manufacturing Corporation Fil mou à grande résistance à l'usure

Also Published As

Publication number Publication date
BE610574A (fr) 1962-05-21
GB925732A (en) 1963-05-08
AT256322B (de) 1967-08-10
ES272182A1 (es) 1962-03-16
DE1435392B2 (de) 1973-10-25
DE1435392A1 (de) 1968-11-14

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