US2990236A - Spinning process - Google Patents

Spinning process Download PDF

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Publication number
US2990236A
US2990236A US722159A US72215958A US2990236A US 2990236 A US2990236 A US 2990236A US 722159 A US722159 A US 722159A US 72215958 A US72215958 A US 72215958A US 2990236 A US2990236 A US 2990236A
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US
United States
Prior art keywords
filaments
guide
spinneret
guides
spinning process
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
US722159A
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English (en)
Inventor
Riseley Eric Ivan
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
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Publication of US2990236A publication Critical patent/US2990236A/en
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Classifications

    • 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

Definitions

  • the bundle of extruded filaments may be collected by winding them, for example, onto surface driven bobbins.
  • Filamentary material made in this way has been found to be irregular with respect both to the overall denier of the bundle and also the denier of individual filaments produced substantially at the same instant of time. It is well known that these variations seriously affect the quality of the textile materials made from the filamentary material.
  • the object of my invention may be attained by ensuring that the filaments in passing around the guides are deflected through angles within the range of 5 to 90 we prefer that the angle of deflection should be within the range of 30 to 60 as this range provides the mininum denier variability consistent with threadline stability.
  • the guide or guides comprise one or more low friction thread constraining surfaces.
  • the yarn contacting surfaces of my guide may be of any suitable material and I have found that guides made from ceramics with surfaces of low coeflicient of friction and sand blasted matt-chromium plated metal are particularly satisfactory.
  • the guides of my invention may be of tubular construction and adapted to be cooled internally.
  • the guides may be fixed or capable of rotation by the moving filaments. I have found that light weight freely rotatable rollers are suitable and if fine circumferential grooves are cut around the roller the individual filaments Harrogate,'England, assignor to perial Chemical Industries Limited, London, England,
  • FIGURE 4 shows the use of a plain idler roller as a deflecting guide and FIGURE 5 illustrates a grooved idler roll.
  • extruded filaments 1 from a spinneret 2 pass individually through a number of guides 3 which are substantially equally spaced about the periphery of a rigid guide ring 4 to a convergence yarn guide 5 and to a wind up means 6 (schematically shown).
  • the guide ring 4 is arranged beneath the spinneret 2 in the region Where the filaments solidify and become non-tacky and the diameter of the guide ring is such that each filament is deflected through an angle (FIGURE 2) where 0 is greater than 5 and less than In FIGURE 4 the filaments are deflected around a free running idler roll 7, A" in diameter, mounted in a support 8.
  • the idler roll may be conveniently made of sand blasted steel with a chromium plated skin.
  • FIGURE 5 illustrates a preferred type of free running idler roll 9 provided with fine circumferential grooves 10.
  • Table 1 illustrates the percentage coeflicient of variation of yarns comprising 48 filaments of polyethylene terephthalate of 1 and 2 denier per filament (drawn) when passed around an Alsimag (registered trademark) ceramic guide located so as to deflect the yarns through a range of angles of 0 to 60.
  • the vertical distance below the spinneret for the 1 denier per filament yarn was 19 inches and for the 2 denier per filament yarn 26".
  • Both yams were spun through 48 hole spinnerets, the spinning temperature was 290 C. and the wind-up speed 3000 ft./min.
  • the denier per filament was altered by adjusting the speed of the gear pump.
  • substantially equal fractions of a number of filaments coming from the spinneret each pass around a separate guide, said separate guides being equally spaced around the periphery of a rigid ring located between the spinneret and the wind-up means. I have found it preferable that the fraction of a number offilaments is not greater than one quarter.
  • a melt spinning process for the production of fine denier filaments comprising extruding molten polymer through a multi-hole spinneret to form filaments, and passing the resultant filaments without material frictional drag about guide means located in the region where the filaments solidify and become substantially non-tacky to Patented June 27, 1961 moons-e
  • a i 3 a wind-up means, characterized in that the filaments in passing around the guide means are deflected through an angle of not, less than 5" and not more than 90.
  • the guide means comprisesat, least one light weight freely rotabl'e roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US722159A 1957-03-25 1958-03-18 Spinning process Expired - Lifetime US2990236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9715/57A GB833032A (en) 1957-03-25 1957-03-25 Process for melt spinning synthetic filaments

Publications (1)

Publication Number Publication Date
US2990236A true US2990236A (en) 1961-06-27

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ID=9877377

Family Applications (1)

Application Number Title Priority Date Filing Date
US722159A Expired - Lifetime US2990236A (en) 1957-03-25 1958-03-18 Spinning process

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US (1) US2990236A (en))
BE (1) BE566016A (en))
FR (1) FR1193580A (en))
GB (1) GB833032A (en))

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065614A (en) * 1960-05-03 1962-11-27 Johns Manville Apparatus for attenuating glass fibers
US3107972A (en) * 1962-10-24 1963-10-22 Du Pont Process for producing bulkable filamentary polyamide yarns
US3271825A (en) * 1963-10-03 1966-09-13 Fiberglas Canada Ltd Method of conditioning glass fiber strands
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3832435A (en) * 1970-07-03 1974-08-27 Hoechst Ag Process for the manufacture of crimped fibers and filaments of linear high molecular weight polymers
US3923224A (en) * 1972-05-26 1975-12-02 Ici Ltd Filament handling apparatus
US4000238A (en) * 1972-02-29 1976-12-28 Fiber Industries, Inc. Method for production of synthetic yarns
US4038357A (en) * 1972-06-28 1977-07-26 Imperial Chemical Industries Inc. Manufacture of synthetic filaments
CN103993372A (zh) * 2014-05-26 2014-08-20 苏州东茂纺织实业有限公司 一种绒毛生成装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091805A (en) * 1960-11-02 1963-06-04 Du Pont Apparatus and process for drawing yarn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951181A (en) * 1930-08-09 1934-03-13 Revere Rubber Co Method and apparatus for separating the individual strands of a rope
US2595044A (en) * 1948-06-01 1952-04-29 Elite Sdruzene Tovarny Puncoch Device for drawing off artificial fibers from the spinneret, especially fibers spun from the molten mass
US2624934A (en) * 1948-04-23 1953-01-13 W M Steele Company Inc Method of and apparatus for heat treatment of filamentary material
US2767429A (en) * 1952-05-06 1956-10-23 Du Pont Snubbing pin for drawing yarn
US2851732A (en) * 1953-07-14 1958-09-16 Du Pont Split filament bundle at finish roll

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951181A (en) * 1930-08-09 1934-03-13 Revere Rubber Co Method and apparatus for separating the individual strands of a rope
US2624934A (en) * 1948-04-23 1953-01-13 W M Steele Company Inc Method of and apparatus for heat treatment of filamentary material
US2595044A (en) * 1948-06-01 1952-04-29 Elite Sdruzene Tovarny Puncoch Device for drawing off artificial fibers from the spinneret, especially fibers spun from the molten mass
US2767429A (en) * 1952-05-06 1956-10-23 Du Pont Snubbing pin for drawing yarn
US2851732A (en) * 1953-07-14 1958-09-16 Du Pont Split filament bundle at finish roll

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3065614A (en) * 1960-05-03 1962-11-27 Johns Manville Apparatus for attenuating glass fibers
US3107972A (en) * 1962-10-24 1963-10-22 Du Pont Process for producing bulkable filamentary polyamide yarns
US3271825A (en) * 1963-10-03 1966-09-13 Fiberglas Canada Ltd Method of conditioning glass fiber strands
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3832435A (en) * 1970-07-03 1974-08-27 Hoechst Ag Process for the manufacture of crimped fibers and filaments of linear high molecular weight polymers
US4000238A (en) * 1972-02-29 1976-12-28 Fiber Industries, Inc. Method for production of synthetic yarns
US3923224A (en) * 1972-05-26 1975-12-02 Ici Ltd Filament handling apparatus
US4038357A (en) * 1972-06-28 1977-07-26 Imperial Chemical Industries Inc. Manufacture of synthetic filaments
CN103993372A (zh) * 2014-05-26 2014-08-20 苏州东茂纺织实业有限公司 一种绒毛生成装置

Also Published As

Publication number Publication date
GB833032A (en) 1960-04-21
BE566016A (en))
FR1193580A (fr) 1959-11-03

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