US2851732A - Split filament bundle at finish roll - Google Patents

Split filament bundle at finish roll Download PDF

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Publication number
US2851732A
US2851732A US367992A US36799253A US2851732A US 2851732 A US2851732 A US 2851732A US 367992 A US367992 A US 367992A US 36799253 A US36799253 A US 36799253A US 2851732 A US2851732 A US 2851732A
Authority
US
United States
Prior art keywords
bundle
bundles
yarn
filaments
filament bundle
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
US367992A
Other languages
English (en)
Inventor
Benjamin T Sharp
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority to BE530338D priority Critical patent/BE530338A/xx
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US367992A priority patent/US2851732A/en
Priority to FR1103820D priority patent/FR1103820A/fr
Priority to ES0216471A priority patent/ES216471A1/es
Priority to CH333865D priority patent/CH333865A/de
Application granted granted Critical
Publication of US2851732A publication Critical patent/US2851732A/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
    • 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
    • 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
    • D01D11/04—Fixed guides
    • 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
    • Y10S264/73—Processes of stretching

Definitions

  • This invention relates to the production of filaments and fibers and more particularly to a process for improving the drawing characteristics of cold-drawable filaments of synthetic linear organic condensation polymers.
  • the molten polymer is extruded through a spinneret to form filaments.
  • the filaments are quenched in a fluid medium, usually a stream of air, converged into a yarn bundle, and conditioned in an atmosphere of steam prior to the application of a lubricating composition or finish and winding up of the yarn.
  • a lubricating composition such as an aqueous emulsion of a low viscosity mineral oil, is applied principally to facilitate the subsequent so-called cold-drawing step disclosed in Babcock, U. S. 2,289,232.
  • 1 represents a spinneret, and the filaments issuing therefrom are represented by 2.
  • the filaments are passed through a four bundle convergence guide 3 and the individual bundles pick up lubricant at the four rolls 4.
  • the lubricated bundles are recombined at the lower finish guide rolls into a single bundle which is then ready for drawing.
  • the filament bundle is passed about feed roller 6 and then about a non-rotatable snubbing pin 7 from which it is passed around positively driven drawing roller 8 which rotates at a greater peripheral speed than roller 6.
  • the drawn material is then passed through guide 9 and traverse guide 10 on to bobbin 11.
  • the finish applicator can be a roll, a fixed-porous medium, a spraying device, or any of the other known expedients of the art. If a roll is used, it may have a smooth surface, a mat surface, or it may be covered with a felt or with a layer of gauze suspended on it at the point of contact with the filament bundles.
  • the plurality of filament bundles may all contact one finish applicator, or each filament bundle may contact a separate finish applicator, or modifications thereof as may be desirable.
  • the advantages of this invention are particularly apparent when spinning either yarns of relatively heavy denier or yarns containing a relatively large number of filaments.
  • the performance in drawing is improved, the quality of the drawn yarn produced is improved, and the whole process can be speeded up as well.
  • the number of smaller bundles into which the large bundle should be divided for application of the lubricating composition will depend upon the size of the original bundle.
  • Most of the improvement in the above respects will be obtained by subdividing the yarn into smaller bundles containing less than 2000 denier and less than 70 filaments. 'The optimum depends upon the process speed. As noted, higher speeds require smaller bundles for the same improvement in drawing performance and yarn quality. While some further improvement in the above respects may be achieved by subdividing into bundles of less than 500 denier or less than 20 filaments, it will usually be economically desirable to operate in the range of between 500 and 2000 denier and between 20 and 70 filaments per bundle.
  • the improvement which comprises subdividing the bundle into smaller bundles of less than about 2,000 denier and containing up to about 70 filaments, applying a lubricating composition to the smaller bundles, recombining the subdivided yarn bundles and thereafter cold drawing the recombined bundle.
  • the improvement which comprises subdividing the bundle into smaller bundles of less than about 2,000 denier and containing no more than about 70 filaments, applying a lubricating composition to the smaller bundles, recombining the subdivided yarn bundles and thereafter cold drawing the recombined bundle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Brushes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
US367992A 1953-07-14 1953-07-14 Split filament bundle at finish roll Expired - Lifetime US2851732A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE530338D BE530338A (en, 2012) 1953-07-14
US367992A US2851732A (en) 1953-07-14 1953-07-14 Split filament bundle at finish roll
FR1103820D FR1103820A (fr) 1953-07-14 1954-07-06 Procédé de traitement de fibres
ES0216471A ES216471A1 (es) 1953-07-14 1954-07-13 UNA MEJORA EN EL PROCEDIMIENTO DE APLICAR UNA COMPOSICIoN LUBRICANTE A HILOS SINTÉTICOS
CH333865D CH333865A (de) 1953-07-14 1954-07-14 Verfahren zur Herstellung von Faserverbänden aus synthetischen, linearen Kondensationspolymerisaten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US367992A US2851732A (en) 1953-07-14 1953-07-14 Split filament bundle at finish roll

Publications (1)

Publication Number Publication Date
US2851732A true US2851732A (en) 1958-09-16

Family

ID=23449436

Family Applications (1)

Application Number Title Priority Date Filing Date
US367992A Expired - Lifetime US2851732A (en) 1953-07-14 1953-07-14 Split filament bundle at finish roll

Country Status (5)

Country Link
US (1) US2851732A (en, 2012)
BE (1) BE530338A (en, 2012)
CH (1) CH333865A (en, 2012)
ES (1) ES216471A1 (en, 2012)
FR (1) FR1103820A (en, 2012)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990236A (en) * 1957-03-25 1961-06-27 Ici Ltd Spinning process
US2991147A (en) * 1957-07-16 1961-07-04 British Nylon Spinners Ltd Process for the manufacture of sintered multifilamentary structures
US3019078A (en) * 1957-11-26 1962-01-30 Owens Corning Fiberglass Corp Method of forming fibers
US3072518A (en) * 1958-03-03 1963-01-08 Johns Manville Fiber Glass Inc Method of forming multiple strands from a single bushing
US3084393A (en) * 1958-01-14 1963-04-09 Bayer Ag Process for stretching filaments
US3107972A (en) * 1962-10-24 1963-10-22 Du Pont Process for producing bulkable filamentary polyamide yarns
US3231167A (en) * 1960-08-13 1966-01-25 Gerresheimer Glas Ag Method of and apparatus for separating threads during spinning
US3336900A (en) * 1966-04-06 1967-08-22 Du Pont Filamentary yarn lubricating apparatus
US3415918A (en) * 1964-06-11 1968-12-10 James R. Holton Manufacture of novelty nub yarns
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3514460A (en) * 1963-12-17 1970-05-26 British Nylon Spinners Ltd Process of drawing nub-free polyamide yarn
US3715421A (en) * 1970-04-15 1973-02-06 Viscose Suisse Soc D Process for the preparation of polyethylene terephthalate filaments
US3752457A (en) * 1969-12-04 1973-08-14 Snia Viscosa Method and equipment for continuously spinning and stretching synthetic filaments
JPS5637962A (en) * 1979-09-05 1981-04-11 Teijin Ltd Manufacture of synthetic fiber monofilament

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261272B (de) * 1960-09-06 1968-02-15 Bayer Ag Verfahren zur fortlaufenden Herstellung ungeschlichteter Fadenkabel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2178743A (en) * 1937-05-21 1939-11-07 Celanese Corp Manufacture of artificial materials
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2657433A (en) * 1950-11-14 1953-11-03 Courtaulds Ltd Continuous processing of filamentary tow

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2178743A (en) * 1937-05-21 1939-11-07 Celanese Corp Manufacture of artificial materials
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2657433A (en) * 1950-11-14 1953-11-03 Courtaulds Ltd Continuous processing of filamentary tow

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990236A (en) * 1957-03-25 1961-06-27 Ici Ltd Spinning process
US2991147A (en) * 1957-07-16 1961-07-04 British Nylon Spinners Ltd Process for the manufacture of sintered multifilamentary structures
US3019078A (en) * 1957-11-26 1962-01-30 Owens Corning Fiberglass Corp Method of forming fibers
US3084393A (en) * 1958-01-14 1963-04-09 Bayer Ag Process for stretching filaments
US3072518A (en) * 1958-03-03 1963-01-08 Johns Manville Fiber Glass Inc Method of forming multiple strands from a single bushing
US3231167A (en) * 1960-08-13 1966-01-25 Gerresheimer Glas Ag Method of and apparatus for separating threads during spinning
US3107972A (en) * 1962-10-24 1963-10-22 Du Pont Process for producing bulkable filamentary polyamide yarns
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
US3336900A (en) * 1966-04-06 1967-08-22 Du Pont Filamentary yarn lubricating apparatus
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3752457A (en) * 1969-12-04 1973-08-14 Snia Viscosa Method and equipment for continuously spinning and stretching synthetic filaments
US3715421A (en) * 1970-04-15 1973-02-06 Viscose Suisse Soc D Process for the preparation of polyethylene terephthalate filaments
JPS5637962A (en) * 1979-09-05 1981-04-11 Teijin Ltd Manufacture of synthetic fiber monofilament

Also Published As

Publication number Publication date
BE530338A (en, 2012)
ES216471A1 (es) 1955-12-01
CH333865A (de) 1958-11-15
FR1103820A (fr) 1955-11-07

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