US3120027A - Method and apparatus for treating yarn - Google Patents

Method and apparatus for treating yarn Download PDF

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Publication number
US3120027A
US3120027A US197069A US19706962A US3120027A US 3120027 A US3120027 A US 3120027A US 197069 A US197069 A US 197069A US 19706962 A US19706962 A US 19706962A US 3120027 A US3120027 A US 3120027A
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US
United States
Prior art keywords
yarn
guide
bundles
reservoir
filaments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US197069A
Other languages
English (en)
Inventor
William M Baggett
Tarlton E Woods
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
Original Assignee
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 US197069A priority Critical patent/US3120027A/en
Priority to GB18885/63A priority patent/GB983416A/en
Priority to DE19631435551 priority patent/DE1435551A1/de
Priority to CH630563A priority patent/CH419431A/fr
Priority to FR935545A priority patent/FR1357993A/fr
Priority to DK242363AA priority patent/DK108687C/da
Priority to BE632713A priority patent/BE632713A/fr
Priority to NL293103A priority patent/NL293103A/nl
Priority to LU43798A priority patent/LU43798A1/fr
Priority to SE571063A priority patent/SE220151C1/sv
Application granted granted Critical
Publication of US3120027A publication Critical patent/US3120027A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube
    • 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
    • D01D11/00—Other features of manufacture
    • D01D11/02—Opening bundles to space the threads or filaments from one another
    • 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
    • D01D5/08—Melt spinning methods
    • 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
    • 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
    • D02J1/221—Preliminary treatments
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/16—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being supplied from inside the roller
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/28—Stretching filaments in gas or steam

Definitions

  • This invention relates to a method and apparatus for producing a treated yarn, preferably a yarn of nylon composition. More particularly, this invention relates to a method and guide for separating a group of filaments into subdivided bundles while simultaneousl applying a treating agent thereto.
  • Nylon yarn is produced by initially extruding a polymer compound through capillaries in a spinneret.
  • the filaments issuing from the capillaries are quenched by directing a flow of air into their path and they are then converged into an unstretched or unfinished yarn.
  • the un finished yarn is conditioned with steam and lubricated by applying a liquid agent or finish thereto. Thereafter the yarn is passed between a differential speed feed and draw roll assembly for stretching the yarn and orienting the molecules therein. The stretched or finished yarn is subsequently collected on bobbins.
  • the lubricants or treating agents used often contain waxes, resins, dyes, etc., and are in the form of an emulsion, solution or dispersion.
  • Lubricants impart a desired lubricity and pliability to yarns which prepares them for weaving and knitting operations.
  • Lubricants reduce inter-filament friction during draw-down, thus enhancing the processability of the multi-filainent yarns.
  • Lubricants also improve the quality of yarns in general.
  • Another object is to provide a convergence guide having a plurality of grooves each normally supplied with a metered amount of liquid agent.
  • Another object is to provide a convergence guide adapted to apply a liquid agent uniformly to subdivided portions of a group of filaments.
  • Another object is to provide a convergence guide which is both economical to produce and simple in construction.
  • Another object is to provide a convergence guide for improving the spinning process of nylon yarn.
  • Another object is to provide a convergence guide adapted to permit a liquid agent under pressure to flow directly into contact with a moving yarn.
  • Another object is to provide a convergence guide hav- Patented Feb. 4, 196% ing orifice means of different dimensions to provide uniform flow of a liquid agent to yarn passing engagingly thereover.
  • a further object is to provide an improved method for producing a conditioned yarn.
  • a still further object is to provide an improved method including simultaneously converging, lubricating, and conditioning yarn.
  • the convergence guide and lubricant applicator device comprises a block body having a reservoir defined therein and a plurality of substantially parallel grooves formed on its exterior surface.
  • the reservoir is normally supplied with a lubricant under pressure from a metering pump through connecting means in the block body.
  • the lubricant flows to the grooves from the reservoir via orifices in the block body.
  • separate bundles of filaments are positioned in a respective groove of the convergence guide so that the bundles pass below the orifices in the grooves.
  • a lubricant is metered from a positive displacement type metering pump to the reservoir and to the grooves via the orifices in the guide and the lubricant is thus applied to the filaments as they pass over the surfaces of the grooves.
  • the improved method for producing a treated yarn comprises moving longitudinally from a source thereof a group of filaments and quenching the latter.
  • the quenched group of filaments is then converged into a plurality of separate bundles and concurrently a lubricant is applied to each bundle.
  • the filaments are surrounded with steam at the point of convergence and lubrication, and the lubricated bundles are then combined to form a yarn.
  • FIGURE 1 is an elevation view showing the convergence guide and liquid treating applicator device embodying the invention
  • FIGURE 2 is an end view of the guide shown in FIG- URE 1;
  • FIGURE 3 is a cross-section view taken through 33 of FIGURE 2;
  • FIGURE 4 is a fragmentary View showing a modified embodiment of the convergence guide and liquid treating applicator device embodying the invention
  • FIGURE 5 is an end view showing the preferred position of the orifices in the convergence guide and liquid treating applicator device in relation to the path of yarn travel;
  • FIGURE 6 is a diagrammatic view illustrating the meth od and apparatus of the invention.
  • the preferred embodiment of the convergence guide and lubricant applicator device 1 comprises a block or casing 2 having a cavity or reservoir 3 extending inwardly from a threaded end thereof.
  • a cap 4 having internal threads and an annular shoulder for positioning a seal 5 therein is sealingly threaded on the threaded end of casing 2.
  • a bore 6 extends inwardly from the exterior of device ll into the reservoir 3.
  • a line 7 connected to a metering pump 3 at its opposite end, is press-fit into bore 6.
  • Metering pump 8 which may be of any conventional positive displacement type, is connected by a line 9 to a source of supply of a lubricant and is operated by a motor 10.
  • a threaded bore 11 in the end wall of casing 2 serves as one means of mounting the device 1.
  • a plurality of substantially parallel circular grooves 12 are formed on the outer periphery of casing 2.
  • casing 2 For purposes of illustration device 1 is shown with four grooves 12.
  • Each groove 12 has tapered sidewalls which join to form the base or bottom of the groove.
  • In the base of each groove 12 there is an orifice 13 that extends through the wall of casing 2 and opens into reservoir 3.
  • Reservoir 3 is provided with a porous filter 14 preferably of the cartridge type as illustrated in the drawing.
  • a molten polymeric compound is extruded through a spinneret 15 having a multiplicity of holes.
  • the filaments 16 issuing from the spinneret are quenched by a cross-low of air and are divided into a number of bundles corresponding to the number of grooves 12 in device 1 by means of a separator device employed by an operator. The operator locates each bundle within a respective groove 12.
  • filaments 16 are forwarded through a conditioning tube 17 located below the device.
  • Conditioning tube 17 is normally filled with steam or conditioning air from a source thereof.
  • the yarn then travels to a single-bundle convergence guide 18 for combining the bundles to form a yarn.
  • From convergence guide 18 the yarn may be laced so as to move to a driven feed roll 19 and then directly into a traverse device 20 and later is collected on a rotatable bobbin 21.
  • the yarn is moved from feed roll 19 to a draw pin 22, to a driven draw roll 23 driven at a faster peripheral rate of speed than the feed roll 12 to stretch the yarn.
  • the stretched yarn then moves through a pigtail guide 24, into the traverse device 29, and is then collected on the bobbin 21. While the yarn is being spun, drawn, and collected, pump 8 is operated by motor 10 so as to supply a metered amount of lubricant to reservoir 3 and orifices 13 of guide 1.
  • device 1 is positioned so that the bundles travel tangentially to the base of the grooves 12 and below the orifices 13 to prevent contact of the filament bundles with the orifices 13 and to allow the lubricant to flow down the grooves 12 and into contact with the moving bundles.
  • the filaments are coated with the lubricant supplied from an orifice 13.
  • the steam from the conditioner tube 17 surrounds the device 1 and imparts heat to the lubricant gathered by the filaments and reduces the viscosity of the lubricant.
  • Grooves 12 are shown as circular. It will be understood that this configuration is desirable from ease of machining and an economy standpoint.
  • An arcuate groove is preferred, although not necessarily circular, over a longitudinal type groove for the reason that contact of filaments with a round or arcuate surface may be tangential and offers less frictional contact than would a parallel contact of the filaments with the surface of a longitudinal groove.
  • each orifice 13 is of a dilferent size, the orifice nearest the line 7 being the smallest in diameter and the others therefrom increasing progressively in diameter so as to account for a pressure gradient in the flow of the lubricant.
  • the guide device 1 provides a simple apparatus and method for simultaneously separating a group of filaments into bundles and lubricating the latter.
  • the guide device 1 also provides means for permitting more uniform lubrication of yarn than in the past.
  • the device 1 is particularly applicable to the lubrication of heavy denier yarns comprised of a large number of filaments.
  • device 1 may be constructed with a large number of grooves 12 to accommodate a large number of small bundles of filaments, as would be necessary in the lubrication of heavy denier yarns.
  • a large number of grooves 12 may be provided, nevertheless, each bundle of filaments will be substantially uniformly lubricated because the lubricant pressure at each orifice 13 will be substantially equal since all the orifices 13 have a common reservoir 3.
  • Apparatus for spinning and drawing yarn comprising in combination:
  • said first guide comprising hollow casing means having a reservoir defined therein,
  • metering means supplied with a treating agent and operatively connected to said port of said first guide for supplying said reservoir with a treating agent under pressure
  • conditioning means normally supplied with steam from a source thereof located in the filament yarn bundle path adjacent said first guide for conditioning said bundles of filament yarn and for heating the area surrounding said first guide,
  • a second guide positioned in the path of the plurality of bundles of filament yarn near said conditioning means for reuniting said filament yarn bundles to form a filament yarn end
  • drawing means positioned in the filament yarn end path near said second guide for stretching said yarn end
  • Apparatus for spinning and drawing yarn comprising in combination:
  • said first guide comprising an elongate hollow casing having a reservoir defined therein,
  • said port means being open at one end to said reservoir and open exteriorly of said hollow casing at its opposite end for flowing a treating agent under pressure delivered from a source thereof to said reservoir,
  • each of said plurality of orifices interconnecting a respective one of said plurality of grooves to said reservoir and each increasing in diameter progressively from said one end of said hollow casing to the opposite end thereof for causing said treating agent under pressure to flow from said reservoir to said plurality of grooves in uniform amounts and into contact with the filament yarn bundles for coating the latter,
  • metering means supplied with a treating agent and operatively connected to said port of said first guide for supplying said reservoir with a treating agent under pressure
  • conditioning means normally supplied with steam from a source thereof located in the filament yarn bundle path adjacent said first guide for conditioning said bundles of filament yarn and for heating the area surrounding said first guide,
  • drawing means positioned in the filament yarn end path near said second guide for stretching said yarn end
  • take-up means for collecting the stretched yarn end.
  • Apparatus for spinning and drawing yarn comprising in combination:
  • said first guide comprising an elongate hollow casing having a reservoir defined therein which reservoir opens outwardly of said hollow casing at one end thereof,
  • a sealing cap adapted to be secured to said hollow casing for sealingly covering said open end of said reservoir
  • port means extending through the wall of said hollow casing at the opposite end of said hollow casing from said one end thereof, said port being open at one end thereof to said reservoir and exteriorly of said hollow casing at its opposite end for flowing a treating agent under pressure delivered from a source thereof to said reservoir,
  • a plurality of grooves formed contiguously along the peripheral length of said hollow casing for dividing the group filament yarn into a plurality of separate filament yarn bundles each having surface contact with a respective one of said plurality of grooves,
  • each of said plurality of orifices interconnecting a respective one of said plurality of grooves to said reservoir and each increasin in diameter progressively from said opposite end of said hollow casing to said one end thereof for causing said treating agent under pressure to flow from said reservoir to said plurality of grooves in uniform amounts and into contact with the filament yarn bundles for coating the latter,
  • metering means supplied with a treating agent and operatively connected to said port of said first guide for supplying said reservoir with a treating agent under pressure
  • conditioning means normally supplied with steam from a source thereof located in the filament yarn bundle path adjacent said first guide for conditioning said bundles of filament yarn and for heating the area surrounding said first guide
  • drawing means positioned in the filament yarn end path near said second guide for stretching said yarn end
  • a method for producing treated yarn comprising:

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US197069A 1962-05-23 1962-05-23 Method and apparatus for treating yarn Expired - Lifetime US3120027A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US197069A US3120027A (en) 1962-05-23 1962-05-23 Method and apparatus for treating yarn
GB18885/63A GB983416A (en) 1962-05-23 1963-05-13 Method and apparatus for treating yarn
DE19631435551 DE1435551A1 (de) 1962-05-23 1963-05-18 Einrichtung und Verfahren zur Herstellung von behandeltem Garn
CH630563A CH419431A (fr) 1962-05-23 1963-05-20 Procédé de fabrication d'un fil traité et appareil pour la mise en oeuvre du procédé
FR935545A FR1357993A (fr) 1962-05-23 1963-05-21 Procédé et appareil pour le traitement d'un fil synthétique
DK242363AA DK108687C (da) 1962-05-23 1963-05-21 Apparat til smeltespinding, strækning og i samme procesforløb avivering af filamenter.
BE632713A BE632713A (en(2012)) 1962-05-23 1963-05-22
NL293103A NL293103A (nl) 1962-05-23 1963-05-22 Inrichting voor het spinnen en trekken van garen
LU43798A LU43798A1 (fr) 1962-05-23 1963-05-22 Procédé et appareil pour le traitement d'un fil synthétique
SE571063A SE220151C1 (sv) 1962-05-23 1963-05-22 Förfarande och apparat för behandling av garn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US197069A US3120027A (en) 1962-05-23 1962-05-23 Method and apparatus for treating yarn

Publications (1)

Publication Number Publication Date
US3120027A true US3120027A (en) 1964-02-04

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US197069A Expired - Lifetime US3120027A (en) 1962-05-23 1962-05-23 Method and apparatus for treating yarn

Country Status (10)

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US (1) US3120027A (en(2012))
BE (1) BE632713A (en(2012))
CH (1) CH419431A (en(2012))
DE (1) DE1435551A1 (en(2012))
DK (1) DK108687C (en(2012))
FR (1) FR1357993A (en(2012))
GB (1) GB983416A (en(2012))
LU (1) LU43798A1 (en(2012))
NL (1) NL293103A (en(2012))
SE (1) SE220151C1 (en(2012))

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393661A (en) * 1967-04-06 1968-07-23 Du Pont Apparatus for applying liquid to moving sheets of fiber
US3415918A (en) * 1964-06-11 1968-12-10 James R. Holton Manufacture of novelty nub yarns
US3422796A (en) * 1967-01-24 1969-01-21 Du Pont Grooved coating apparatus
US3514460A (en) * 1963-12-17 1970-05-26 British Nylon Spinners Ltd Process of drawing nub-free polyamide yarn
USB557721I5 (en(2012)) * 1975-03-12 1976-03-23
US4000238A (en) * 1972-02-29 1976-12-28 Fiber Industries, Inc. Method for production of synthetic yarns
US4019311A (en) * 1973-07-18 1977-04-26 Barmag Barmer Maschinenfabrik Aktiengesellschaft Process for the production of a multifilament texturized yarn
EP0007481A3 (en) * 1978-08-01 1980-03-19 Allied Corporation A method for quenching freshly spun synthetic multifilament yarns, and quench system for spinning such yarns
EP0176937A3 (en) * 1984-09-27 1988-03-23 Norddeutsche Faserwerke Gmbh Process for manufacturing a non-textured yarn
US20140115848A1 (en) * 2011-06-03 2014-05-01 Mitsubishi Rayon Co., Ltd. Method for producing carbon-fiber-precursor acrylic fiber bundle
US11970788B2 (en) * 2013-10-29 2024-04-30 Braskem America, Inc. System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046298A (en) * 1964-07-09 1966-10-19 British Nylon Spinners Ltd Improvements in or relating to the drawing of synthetic filaments
US4059068A (en) * 1974-06-10 1977-11-22 Rhone-Poulenc-Textile Apparatus for treating filamentary products
US4292918A (en) * 1980-01-08 1981-10-06 West Point Pepperell, Inc. Apparatus for applying liquid chemicals to a moving web
EP2071064A1 (en) * 2007-12-12 2009-06-17 Borealis Technology Oy Impregnation of a filament roving

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444638A (en) * 1921-01-21 1923-02-06 Durell O Pease Carding machine
US2036886A (en) * 1933-04-24 1936-04-07 Richardson Ralph Pilsbury Drafting of cotton and like fibers
US2961821A (en) * 1956-12-07 1960-11-29 Owens Corning Fiberglass Corp Apparatus for manufacturing bonded fibrous glass slivers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444638A (en) * 1921-01-21 1923-02-06 Durell O Pease Carding machine
US2036886A (en) * 1933-04-24 1936-04-07 Richardson Ralph Pilsbury Drafting of cotton and like fibers
US2961821A (en) * 1956-12-07 1960-11-29 Owens Corning Fiberglass Corp Apparatus for manufacturing bonded fibrous glass slivers

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514460A (en) * 1963-12-17 1970-05-26 British Nylon Spinners Ltd Process of drawing nub-free polyamide yarn
US3415918A (en) * 1964-06-11 1968-12-10 James R. Holton Manufacture of novelty nub yarns
US3422796A (en) * 1967-01-24 1969-01-21 Du Pont Grooved coating apparatus
US3393661A (en) * 1967-04-06 1968-07-23 Du Pont Apparatus for applying liquid to moving sheets of fiber
US4000238A (en) * 1972-02-29 1976-12-28 Fiber Industries, Inc. Method for production of synthetic yarns
US4019311A (en) * 1973-07-18 1977-04-26 Barmag Barmer Maschinenfabrik Aktiengesellschaft Process for the production of a multifilament texturized yarn
US4013435A (en) * 1975-03-12 1977-03-22 Owens-Corning Fiberglas Corporation Production of organic fibers with inorganic cores
USB557721I5 (en(2012)) * 1975-03-12 1976-03-23
EP0007481A3 (en) * 1978-08-01 1980-03-19 Allied Corporation A method for quenching freshly spun synthetic multifilament yarns, and quench system for spinning such yarns
EP0176937A3 (en) * 1984-09-27 1988-03-23 Norddeutsche Faserwerke Gmbh Process for manufacturing a non-textured yarn
US20140115848A1 (en) * 2011-06-03 2014-05-01 Mitsubishi Rayon Co., Ltd. Method for producing carbon-fiber-precursor acrylic fiber bundle
US9388516B2 (en) * 2011-06-03 2016-07-12 Mitsubishi Rayon Co., Ltd. Method for producing carbon-fiber-precursor acrylic fiber bundle
US11970788B2 (en) * 2013-10-29 2024-04-30 Braskem America, Inc. System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn

Also Published As

Publication number Publication date
GB983416A (en) 1965-02-17
DK108687C (da) 1968-01-29
LU43798A1 (fr) 1963-11-22
FR1357993A (fr) 1964-04-10
DE1435551A1 (de) 1969-03-20
BE632713A (en(2012)) 1963-11-22
CH419431A (fr) 1966-08-31
SE220151C1 (sv) 1968-04-23
NL293103A (nl) 1964-07-26

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