US2199411A - Artificial structure and method for producing same - Google Patents

Artificial structure and method for producing same Download PDF

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Publication number
US2199411A
US2199411A US238212A US23821238A US2199411A US 2199411 A US2199411 A US 2199411A US 238212 A US238212 A US 238212A US 23821238 A US23821238 A US 23821238A US 2199411 A US2199411 A US 2199411A
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US
United States
Prior art keywords
yarn
synthetic linear
yarns
polyamide
shrinkage
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
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US238212A
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English (en)
Inventor
Lewis Everett Vernon
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EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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Filing date
Publication date
Priority to BE435100D priority Critical patent/BE435100A/xx
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US238212A priority patent/US2199411A/en
Priority to FR50322D priority patent/FR50322E/fr
Priority to NL53115D priority patent/NL53115C/xx
Priority to DEP79367D priority patent/DE727736C/de
Priority to GB291??/39A priority patent/GB536177A/en
Application granted granted Critical
Publication of US2199411A publication Critical patent/US2199411A/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
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/54—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur dioxide; with sulfurous acid or its salts
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • 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
    • D02J1/229—Relaxing
    • 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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate
    • 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
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/017—Filament stretching apparatus

Definitions

  • This cold drawing operation improves the properties of these filaments, e. g., increases their tensile strength, elasticity and resistance to stretch.
  • these polyamide yarns be first subjected to setting conditions in the form ultimately desired in the fabric.
  • Advantage is taken of this property in the manufacture of stockings from synthetic linear polyamides as is more fully described in the co-pending application of John Blanchard Miles, Jr., Serial No. 216,409 filed June 28, 1938.
  • residual shrinkage (approximately 10%) and as a result when fabrics comprising them are subjected to hot, wet conditions, e. g., boil-off or dyeing operations, they shrink excessively.
  • This high shrinkage is very objectionable, and it is consequently diflicult to obtain the proper size of manufactured goods, for example, leg size in full-fashioned hosiery.
  • residual shrinkage is meant the decrease in length which a filament or yarn undergoes when subjected" in a relaxed condition to hot aqueous treatment, with or without detergenw at a temperature of 95-100 C. for several minutes.
  • residual shrinkage a measured sample is subjected to the shrinking treatment described above, dried in a relaxed condition, and its length determined at the same humidity and temperature as the initial measurement.
  • yarns or filaments of synthetic linear polyamides produced in the above-described manner may be shrunk by treatment with hot water, or steam it maintained under a low tension, for example, in the form of skeins.
  • hot water or the like By pretreatment of such yarns or filaments with hot water or the like, excessive shrinkage of the fabric is avoided but the yarn is caused to set, and such set yarn when knit into fabrics tends to result in irregular and poor stitch formation.
  • This is thought to be the result of the setting effect, above described, which prevents the yarn from readily taking and maintaining the shape imposed by the sinkers, dividers and needles in a knitting machine and from being readily set in this shape by a subsequent setting operation.
  • Fabrics knit from such yarn often have such poor and irregular stitch formation as to give the appearance of a lace.
  • Figure l is a diagrammatic perspective view showing one form of device which is adapted to heat shrink yarn in accordance with the principles of the present invention.
  • FIG 2 is a perspective view of the hot plate shown in Figure 1 of the drawings.
  • Figure 3 is a diagrammatic perspective view of another modification of apparatus suitable for use in accordance with the present invention.
  • Figure 4 is a cross-sectional view of the heating element shown in Figure 3.
  • Figure 5 is still another modifiedform of apparatus suitable for usein carrying out the present invention.
  • reference numeral II designates a package of yarn I3.
  • the yarn I3 is shown passing from the package I I, through a stationary yarn guide I5, over a positively driven guiding roller I1, and through a tensioning device I9.
  • the tensioning device I9 comprises a smoothsurfaced rigid base and a member 2I is pressed against the top surface of the rigid plate so as to lightly clamp the yarn I3 between these two elements.
  • is positioned in grooves 23 in' rigid frame members attached to the rigid plate in any desired manner.
  • may be held in position at any desired point in the grooves 23
  • the heating plate is provided with a pair of electrical resistance heating elements II and 33 whereby to heat it, thus maintaining the groove 20 at any desired temperature.
  • the yarn I3 is shown passing from the groove 2! about a freely rotatable roller II, thence through a stationary yarn guide 31, and then through a reciprocating yarn guide 30 which is adapted to traverse the yarn backward and forward across a bobbin 0 whereby to build the yarn package 4
  • the bobbin 3 is preferably so mounted as to be driven at a constant yarn speed, c. g., surface driven.
  • heating block 21 is illustrated in greater detail showing openings 2! in which heating elements may be positioned.
  • These heating elements may comprise conduits through which a heating medium may be passed, or electrical resistance elements, or any other desired heating means.
  • the yarn 53 is shown passing from the yarn package 5i, through a stationary yarn guide 55, through a yarn tensioning device.
  • the yarn tensioning device comprises a rigid, smooth-faced plate 51, support not shown, and a thin. flexible steel plate 59.
  • the flexible plate 50 is attached to the pivot arm 62.
  • the pivot arm 62 is pivoted to a rigid frame member 6
  • the weight 83 may be positioned at any desired point along arm 82 to suitably vary the pressure with which the flexible plate 59 is pressed against the rigid plate 51.
  • the yarn is shown passing from the tensioning device through groove B1 of the curved heating element 65.
  • the element 65 may be heated by means of high pressure steam, or any other desired liquid or gaseous heating medium.
  • the heating medium is passed through element 65 by means of inlet conduit II and outlet conduit 89, which conduits are connected to a hollow space in element 65.
  • the fiow of the heating medium may be controlled by means of valves I3 and I5 and the pressure of the heating medium can readily be determined by means of gauge I1.
  • the yarn is shown passing over the roller 83 which is adapted to rotate in contact with the positively driven roller 8
  • the roller 83 is adapted to apply the desired amount of a size composition to the yarn prior to its being wound in the form of a package.
  • the yarn is then shown passing over guide roller 85, through a fixed guide '6 and thence through a traversing guide 81 which is traversed back and forth to position the yarn on the surface driven bobbin iii in the form of a wound cake 89.
  • a yarn or filament I03 is shown passing from the wound package IIlI through stationary yarn guide I05,thence through a yarn tensioning device simi-
  • the drawing assembly comprises the positively driven roll II! and the freely rotatable separator roll I2I and a second identical pair of rolls I23 and I25.
  • the yarn is shown passing first about .the positively driven roll IIS and thence around it and the separator roll I2 I for a sufllcient number of turns to prevent slippage of the yarn.
  • yarn is thenv shown passing to the positively u driven roll I23, thence around the separator roll I25 in the same manner as described for rolls II9 and I2I.
  • the thread is then shown passing over the hard-rubber covered head roll I21 and thence through the groove I29 of the hot plate I28.
  • Electrical resistance elements I3I and I33 are provided for the heating of the hot plate I28 and the groove I29.
  • the yarn After passing through the groove I29 of the hot plate the yarn is shown passing through a stationary yarn guide I35, over a size applying roller I39 which is rotated by contact with the positively driven roll I39 partially immersed in the size bath Ill and thence through a stationary yarn guide I43, and through the traveler of a ring twisting machine.
  • the traveler I45 is positioned about reciprocating ring I41 and the pirn I49 is rotated by means of a belt I5I and pulley I53 at a constant angular speed.
  • Example I A 45-denier, 15-filament polyhexamethylene adipamide yarn'cold drawn 410% and having a residualshrinkage of about 11% was drawn from a package II through the heat shrinking apparatus shown in Figure 1 of the drawings by the surface driven bobbin 43.
  • the tensioning device I9 was adjusted to impart a constant. total tension of 3 grams to yarn leaving it.
  • the temperature of the heating plate and of the groove 29 was maintained at approximately 200 C.
  • the length of the block in the direction of the groove 29 was approximately 4 inches.
  • the bobbin 43 was driven to wind up the yarn at a constant speed of feet per minute. thrunk in this manner was found to have a residual shrinkage of 1.5% as compared to its original residual shrinkage of 11%.
  • this yarn when knit into the leg of a full-fashioned stocking gave excellent stitch formation. and the stocking after. boarding, boil-off and dyeing operations was of the proper size.
  • Example II A 45-denier, 15-filament polyhexamethylene adipamide yarn cold drawn 348% having a residual shrinkage of about 10% was drawn through the heat shrinking and size applying apparatus illustrated in Figure 3 at a uniform speed by the surface driven bobbin 9I. Steam at a pressure of pounds per square inch was passed through the heating element 55 which was approx mately 24 inches long. The yarn tension ng device 51 was adjusted to impart a uniform total tension of 5 grams to the yarn. The yarn was drawn through the heating element at a speed of approximately 9'70 feet per minute. The outwardly curved surface of the heating element 65 kept the yarn in intimate thermal contact with the surface of the groove 61 during its entire passage through groove 61 thus increasing its thermal efficiency in heating the yarn.
  • the yarn, heat shrunk in this manner was found to have its residual shrinkage reduced from 10% to about 1.3%.
  • the heat shrunk yarn was knit into the leg of a full-fashioned stocking fabric and exhibited excellent stitch formation.
  • Other similarly shrunk oriented polyhexamethylene adipamide yarn was used for the heel, sole and 'welt.
  • the stocking fabric so knit was then looped, seamed
  • the stocking was allowed to cool, removed from the form, scoured, dyed and rinsed in the usual manner and reboarded to remove the superficial wrinkles.
  • the stocking so obtained was found to have excellent stitch formation.
  • unprecedented elastic properties and was wringle-free and substantially the same size as knit.
  • Example III A -denier, 11-filament undrawn polyhexamethylene adipamide yarn was passed through the drawing, heat shrinking and size applying apparatus illustrated in Figure 5 of the drawings.
  • the tensioning device 51 was adjusted to impart a total tension of 12 grams to the yarn leaving it.
  • the yarn then passed over the roller III to the draw roll H9, thence about it and the separator roll I 2I and thence to the draw roll I23 and separator roll I25.
  • the draw rolls H9 and I 23 were positively driven at a ratio of peripheral speeds of 1:4.1 respectively.
  • the yarn in passing from the roll II9 to the roll I23 was stretched to 4.1 times its original length (cold drawn 410%).
  • This oriented 33-denier yarn then passed over the head roll I21 which was constructed of hard rubber and wh ch had a surface speed 2% greater than that of the draw roll I23.
  • the head roll I21 served to pull the yarn from the draw roll I23 and deliver it to the groove I29 of heating plate I28, at a uniform rate and at substantially zero tension.
  • the temperature of the block I28 was maintained at approximately 225 C. and the length of the block in the direction of the groove was approximately 3 inches.
  • the speed of the yarn passing through the groove I29 was approximately 28 feet per minute and was under a total tension imparted to the yarn by the ring twister of approximately 2 grams.
  • the drawn and heat shrunk yarn produced in this manner was found to have a residual shrinkage of about 1.7% as compared to a residual shrinkage of 11% for similarly drawn unshrunk yarn.
  • the heat shrunk yarn so produced was found to give well formed needle and sinker loops when knitted into a fabric.
  • the shrunk yarn, or fabrics comprising it, was easily set by a mild setting treatment in any desired conformation.
  • the temperature of the yarn be raised to the proper point and that the tension on the yarn be low; i. e., the yarn be free to shrink.
  • the temperature imparted to the yarn to promote heat shrinkage should usually be above 100 C., and preferably between about 120 C. and 180 C.
  • the preferred limits for the heat shrinking of oriented polyhexamethylene adipamide yarns are C.- C.
  • the optimum temperature of the heating surface to impart the proper temperature to the yarn will depend on the speed of the yarn, the length of the heating surface and the denier of the yarn. It will also depend on the efiiciency of the thermal contact between the yarn and the heating surface.
  • the proper temperature for the heating surface can easily be determined by trial for any given arrangement and yarn speed. For example, in the arrangement illustrated in Figure 1 of the drawings, if the length of the block is 8 inches, the yarn speed 1500 feet per minute, the
  • residual shrinkage of a 45-denier oriented linear 15 polyamide yarn is reduced from about 10% to about 2% when the temperature of the block is 255 C.
  • lower yarn speeds for example, 200 feet per minute, are employed the same reduction of residual shrinkage is obtained when the temperature of the block is only 200 C.
  • Example I The effect of good thermal contact by the thread with the heating element is an important factor. This effect is illustrated by comparing the conditions described in Example I with those described in Example II in which the curved groove giving intimate thermal contact was used.
  • Example II the time of contact of the yarn with the heated surface was approximately 0.17 second. and in Example II it was about 0.12 second.
  • the temperature of the straight-grooved block was raised to about 200 C. whereas that of the curved-grooved element shown in Figure 2 was only .180 C. and even though the time of contact in the latter was shorter comparable reductions in residual shrinkage were obtained.
  • the residual shrinkage remaining in the yarn is approximately a linear function of the tension in the range of tensions from 0.05 to 0.4 gram per denier.
  • the residual shrinkages of the resultant yarns were 2% and 5% respectively.
  • Heat shrinkage need not be carried out on a yarn moving continuously.
  • Yarn can be wound into skeins or on to packages, preferably collapsible packages, and treated with heat in an oven.
  • the yarn need not be heated by contact with a hot metal but may be heated by passing it in contact with any other rigid heated element, or by passing the yarn through a liquid which does not have a swelling action on the yarn.
  • Tetrachlorethylene and other substituted hydrocarbons with low vapor pressure can be used for this purpose.
  • Water, or other compounds, such as methanol, ethylene glycol, glycerol and aniline have a swelling action on the polyamide and are not suitable either in the liquid or gaseous phase for use in heat shrinkage of oriented polyamide yarns in accordance with the present invention. Heated air or other gases may be used to heat shrink yarn in accordance with the present invention.
  • yarns comprising staple length synthetic polyamide fibers alone or in combination with other textile fialments or fibers may be dry shrunk according to this invention.
  • fabrics comprising these synthetic linear polyamide filaments may be shrunk according to this invention.
  • the oriented synthetic linear polyamide yarns shrunk according to the invention are superior to unshrunk yarns because they permit the manufacture of fabrics of the proper size which do not shrink upon being boiled off or dyed or during subsequent laundering operations.
  • These heat shrunk yarns are superior to previously known shrunk polyamide yarns since they are sufflciently unset to permit their use in weaving or knitting fabrics with uniform and desirable stitch formation. Furthermore, they can be readily set in any desired conformation by a subsequent setting treatment.
  • a dry-heat-shrunk synthetic linear polyamide filament characterized in that it is sufficiently unset to permit its use in weaving or knitting fabrics of uniform stitch formation.
  • a dry-heat-shrunk polyhexamethylene adipamide filament characterized in that it is sufficiently unset to permits use in weaving or knitting fabrics of uniform stitch formation.
  • the process of reducing the residual shrinkage of synthetic linear polyamide structures which comprises continuously passing a synthetic linear polyamide yarn under a tension not to exceed 0.3 gram per denier in contact with a dry heated surface for a sufficient period of time to reduce the residual shrinkage to at least 5%.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
US238212A 1938-11-01 1938-11-01 Artificial structure and method for producing same Expired - Lifetime US2199411A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE435100D BE435100A (en)) 1938-11-01
US238212A US2199411A (en) 1938-11-01 1938-11-01 Artificial structure and method for producing same
FR50322D FR50322E (fr) 1938-11-01 1939-03-29 Produits infroissables et procédés servant à les fabriquer
NL53115D NL53115C (en)) 1938-11-01 1939-06-22
DEP79367D DE727736C (de) 1938-11-01 1939-06-27 Verfahren zum Schrumpffestmachen von Faeden, Garnen und Geweben aus synthetischen linearen orientierten Superpolyamiden
GB291??/39A GB536177A (en) 1938-11-01 1939-11-01 Improvements in or relating to the manufacture of synthetic polymeric filaments, yarns, ribbons and like structures

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US238212A US2199411A (en) 1938-11-01 1938-11-01 Artificial structure and method for producing same

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US2199411A true US2199411A (en) 1940-05-07

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US (1) US2199411A (en))
BE (1) BE435100A (en))
DE (1) DE727736C (en))
FR (1) FR50322E (en))
GB (1) GB536177A (en))
NL (1) NL53115C (en))

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423182A (en) * 1943-04-29 1947-07-01 Du Pont Method of cold-drawing tapered filaments
US2445042A (en) * 1943-07-28 1948-07-13 Du Pont Method of treating oriented acrylonitrile structures
US2499142A (en) * 1948-07-14 1950-02-28 Fair Lawn Finishing Company Heat setting of textile fabrics
US2516562A (en) * 1946-12-03 1950-07-25 Du Pont Process of making artificial wool from nylon fibers
US2524895A (en) * 1945-10-31 1950-10-10 Celanese Corp Puckering a thermoplastic fabric by heating one side thereof
US2624934A (en) * 1948-04-23 1953-01-13 W M Steele Company Inc Method of and apparatus for heat treatment of filamentary material
US2730789A (en) * 1950-10-05 1956-01-17 American Thread Co Machine for stretching nylon thread
US2734794A (en) * 1951-07-12 1956-02-14 G cm-ton
US2794700A (en) * 1954-07-01 1957-06-04 Du Pont Process of heat treating nylon filaments by passing them around a heated metal drum
US2820280A (en) * 1956-11-20 1958-01-21 Stevens & Co Inc J P Yarn heating system
US2857653A (en) * 1955-08-29 1958-10-28 Burlington Industries Inc Process for manufacturing crepe fabrics
US2869972A (en) * 1952-12-31 1959-01-20 Eastman Kodak Co Method of treating yarns and filaments and products produced thereby
US2883260A (en) * 1953-09-21 1959-04-21 American Cyanamid Co Production of monofilament of a polymer or copolymer of acrylonitrile
US2900783A (en) * 1955-10-28 1959-08-25 North American Rayon Corp Yarn crimping apparatus
US2919534A (en) * 1955-11-02 1960-01-05 Deering Milliken Res Corp Improved textile materials and methods and apparatus for preparing the same
US2956330A (en) * 1957-05-23 1960-10-18 Du Pont Stabilized yarn
US2958921A (en) * 1954-11-26 1960-11-08 Klinger Mfg Company Heat treatment of thermoplastic or thermosetting yarn
DE974404C (de) * 1954-11-03 1960-12-22 Krantz Soehne H Verfahren zum Heissfixieren von Geweben oder Gewirken aus Polyamidfasern oder -faeden mit trockener Hitze
DE974973C (de) * 1947-12-09 1961-06-22 Stueckfaerberei Holding Ag Verfahren und Vorrichtung zum Heissfixieren von unter Verwendung synthetischer Faeden oder Fasern hergestellten Textilerzeugnissen
US2993333A (en) * 1961-07-25 Production of twist lively thread
US3024152A (en) * 1957-11-04 1962-03-06 Johnson & Johnson Stabilized polymeric strand reinforced pressure sensitive adhesive tapes
DE975721C (de) * 1943-07-17 1962-08-09 Thueringische Zellwolle A G Verfahren und Vorrichtung zur Erhoehung der Festigkeit von Faeden oder Fasern aus Polyamiden oder Polyurethanen
US3079665A (en) * 1959-12-22 1963-03-05 Gudebrod Brothers Silk Co Inc Coated strands and process for making the same
US3088792A (en) * 1959-06-29 1963-05-07 American Enka Corp Thermoplastic yarns
DE1148350B (de) * 1955-08-09 1963-05-09 Sydney & E Schragg Ltd Vorrichtung zum Kraeuseln endloser synthetischer Faeden
US3090997A (en) * 1958-11-26 1963-05-28 Du Pont Method of continuous treatment of as-spun birefringent polyamide filaments
US3091015A (en) * 1955-06-30 1963-05-28 Du Pont Drawing of nylon
US3133138A (en) * 1958-12-19 1964-05-12 Du Pont Stretching and heat crystallization of poly(meta-phenylene isophthalamide) fibers
DE1186577B (de) * 1955-11-18 1965-02-04 Onderzoekings Inst Res Kontinuierliches Kraeuseln von endlosen thermoplastischen synthetischen Faeden
US3244142A (en) * 1963-06-20 1966-04-05 Du Pont Finish applicator for a continuous filament yarn
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
DE1241034B (de) * 1954-11-26 1967-05-24 Scragg & Sons Vorrichtung zur Waermebehandlung von laufenden synthetischen, thermoplastischen Faeden, Fadenbuendeln oder Garnen
US3404441A (en) * 1965-04-17 1968-10-08 Teijin Ltd Apparatus for the heat treatment of a running yarn
US3404522A (en) * 1965-04-06 1968-10-08 Celanese Corp Process and apparatus for making voluminous yarn
US3449549A (en) * 1966-03-29 1969-06-10 Kokusai Electric Co Ltd Heat treatment apparatus for a travelling yarn or yarns
US3483593A (en) * 1965-03-25 1969-12-16 Ici Ltd Drawing apparatus
US3546329A (en) * 1966-12-16 1970-12-08 Teijin Ltd Process for heat-treating polyamide filaments
US6423227B1 (en) * 1997-02-07 2002-07-23 Nordson Corporation Meltblown yarn and method and apparatus for manufacturing
CN105839207A (zh) * 2016-05-09 2016-08-10 桐乡市中辰化纤有限公司 超低收缩有光fdy的生产方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE910715C (de) * 1941-02-25 1954-05-06 Bobingen Ag Fuer Textil Faser Verfahren und Vorrichtung zur Herstellung von gereckten Faeden bzw. Fadenbuendeln aus synthetischen, linearen Polyemeren
DE1146472B (de) * 1952-03-29 1963-04-04 Raduner & Co Ag Verfahren zur AEnderung der faerberischen Eigenschaften von vollsynthetischen, thermoplastischen Garnen und textilen Flaechengebilden in Musterungen unter Anwendung von Waerme
DE1102093B (de) * 1952-07-30 1961-03-16 Phrix Werke Ag Verfahren zum Verbessern der textiltechnischen Eigenschaften von Faeden, Fasern, Geweben, Gewirken oder aehnlichen Textilerzeugnissen aus Polyacrylnitril
US3321448A (en) * 1965-09-16 1967-05-23 Du Pont Nylon staple fiber for blending with other textile fibers

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993333A (en) * 1961-07-25 Production of twist lively thread
US2423182A (en) * 1943-04-29 1947-07-01 Du Pont Method of cold-drawing tapered filaments
DE975721C (de) * 1943-07-17 1962-08-09 Thueringische Zellwolle A G Verfahren und Vorrichtung zur Erhoehung der Festigkeit von Faeden oder Fasern aus Polyamiden oder Polyurethanen
US2445042A (en) * 1943-07-28 1948-07-13 Du Pont Method of treating oriented acrylonitrile structures
US2524895A (en) * 1945-10-31 1950-10-10 Celanese Corp Puckering a thermoplastic fabric by heating one side thereof
US2516562A (en) * 1946-12-03 1950-07-25 Du Pont Process of making artificial wool from nylon fibers
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Also Published As

Publication number Publication date
NL53115C (en)) 1942-04-15
DE727736C (de) 1942-11-11
FR50322E (fr) 1940-03-16
BE435100A (en))
GB536177A (en) 1941-05-06

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