US2834046A - Spinneret arrangement - Google Patents

Spinneret arrangement Download PDF

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Publication number
US2834046A
US2834046A US515146A US51514655A US2834046A US 2834046 A US2834046 A US 2834046A US 515146 A US515146 A US 515146A US 51514655 A US51514655 A US 51514655A US 2834046 A US2834046 A US 2834046A
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United States
Prior art keywords
spinneret
conduit
spinning
face
axis
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
US515146A
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English (en)
Inventor
Hesselink Frans
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.)
Akzona Inc
Original Assignee
American Enka Corp
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Filing date
Publication date
Application filed by American Enka Corp filed Critical American Enka Corp
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Publication of US2834046A publication Critical patent/US2834046A/en
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    • 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
    • D01D5/06—Wet spinning methods

Definitions

  • This invention relates to a process and apparatus for the manufacture of rayon threads for yarns and is more particularly concerned with the manner in which freshly spun yarns are initially contacted by the spin bath solution.
  • a further advantage of the present invention is that breakage of the filaments adjacent to the spinneret is greatly reduced.
  • the friction of the spin bath in relation to the freshly formed yarn is reduced with corresponding improvement in residual stretchability and mechanical strength of the finished yarn.
  • Figure 1 is a view in section of a spinneret and spin bath supply assembly according to the present invention.
  • Figure 2 is a view also in section of a modified type of assembly intended for immersion in an ordinary spin bath container.
  • the conduit 10 is the supply line for the spinning solution and this conduit 10 terminates in a flared month which is clamped between washers 11 by a hollow plug 12 which is screwed into a cavity in a body 13.
  • the body 13 has a central aperture or channel at 14 which constitutes a coaxial extension of the conduit 10. It also includes a coaxial, frustoconical portion 15 which leads to a spinneret 16 having a plurality of spinning orifices.
  • the spinneret 16 is provided with flanges which are clamped against a washer 17 by a cap 18.
  • the annular cavity 20 communicates with another annular cavity 22 which coaxially surrounds the common axis XX of the conduits 10, 14 and 15, as well as the spinneret 16.
  • the inner surface of the space 22 is defined by the outer surface and end face 19 of the cap 18.
  • the outer surface of the space 22 is defined by an annular body 23 which is threaded at 24 into the body 13.
  • the body 23 receives a threaded end of a conduit 25 at its other end.
  • the mouth of the conduit 25 is flared or trumpet shaped at 28.
  • the width of the portion 22b of the chamber 22 controls the velocity of the radially moving spin bath solution.
  • the sealing gaskets 26 can themselves be or may be associated with spacing shims, rings or the like. It will be appreciated that one of the effects of the construction of the present invention is the reduction in dead space laterally of the freshly extruded bundle of yarns.
  • the numeral 29 represents a fragment of a spin bath container. Within this container there is located a spinneret assembly with the axis of extrusion aligned with a conduit 30 having a flared mouth 31.
  • a spinneret assembly with the axis of extrusion aligned with a conduit 30 having a flared mouth 31.
  • the spinning solution is supplied through a conduit 32 which is held by a flange 33 between overlapping sleeves Hand 35-aractly in the manner of the corresponding part shown in Figure 1..
  • the spacial relationship of the end-of thecap 36 tothe mouth ofiitheconduit' 30 is such as to provide a narrow space inn-plane normal; to-the axis of extrusion.
  • the diameter of the channel 28-and the width of the portion 22b of the chamber 22 areselected with the anticipated working condition in mind.
  • the interior diameter of the channel28 may be 9 millimeters. 0n the other: hand, for threads of 1500. denier, a channelsize of -16-millimeters is necessary.
  • the width of the-portion 22b-of the chamber 22 is especially dependent upon the interior diameter of the channel 28. The width amounts-in general, and in any case at the narrowest place, to only-a few millimeters and is so adjusted that the velocity of. the coagulating liquid increases rapidly.
  • a spinning apparatus comprising a spinneret having a flat outer face extending normal to an extrusion axis, first means defining a surface flush with the face of said spinneret and extending radially from the periphery thereof, a conduit having a mouth coaxial with but spaced slightly from the face of said spinneret, second means defining a Surface flush with and extending radially away from the mouth of said conduit, said first and second means defining therebetween an annular zone surrounding the extrusion axis, and means to circulate coagulating liquid radially inwardly through said zone and coaxially into said conduit.
  • An apparatus for the wet spinning of'syn'theticyarn comprising a spinneret having a fiat outer face extending said spinneret, second means defining a surface flush with and extending radially away from the flared mouth of said conduit, one of said means'being adjustable toward and away from; the-other, said first-andsecond means defining therebetween an adjustable annular zone surrounding the extrusion axis, and means to circulate coagulatingliquid radially inwardly through said zone and coaxially into said conduit.
  • Apparatus for the wet spinning of synthetic yarn that comprises a spinneret, a cap for supporting said spinneret, the end of said cap being flush with the face of said spinneret, means defining a conduit having'a flared month coaxial with but spaced from the faceof said spinneret, said means and the end of said cap defining therebetweenan annular zone surrounding the extrusion axis and immediately adjacent to but extending in a direction-parallel with and outwardly from the face of the spinneret, andmeans to deliver coagulating liquid uniformly about the margin of said zone for radial inward movement thereacross;
  • Apparatus for the wet spinning of synthetic yarn that comprises a spinneret, a capfor supporting said spinneretjthe end of said cap being flush with the face of said'spinnerer, means defining a first conduit having a flaredmouth coaxial with but spaced from'the face of the spinneret, said means and the end of said cap defining therebetween an annular zone surrounding the extrusion axis and immediately adjacent'to but extending in'a direction parallel with and outwardly from'the face'of the spinneret, means defining a second conduit for supply ing spinning.
  • solution to-said spinneret means defining; an annular space surroundingsaid second conduit, annular space communicating with said'zone' and extending in a direction normal thereto, andmeanstosuppl'y a coagulating-liquidto said annular space-for circulation thereth rougmand radial inward movement across said zone;
  • the method of wet spinning including the steps of flowingaspinning solution to a region of extrusion, extruding said solution through a spinneret into a coagulatingliquid in the form of a plurality of filaments arranged in a bundle'around an axis, and'thereafter with drawing the bundle of filaments and coagulating'liquil together along said axis from the region-of extrusioo through a confined zone, the improvement comprisin the step of flowing said coagulating liquid radially toward the extrusion axis while confining the flow thereof to azone normalto said extrusion axis and contiguous to but extending outwardlyfrom the face of said spinneret.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US515146A 1954-06-17 1955-06-13 Spinneret arrangement Expired - Lifetime US2834046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL785893X 1954-06-17

Publications (1)

Publication Number Publication Date
US2834046A true US2834046A (en) 1958-05-13

Family

ID=19832269

Family Applications (1)

Application Number Title Priority Date Filing Date
US515146A Expired - Lifetime US2834046A (en) 1954-06-17 1955-06-13 Spinneret arrangement

Country Status (5)

Country Link
US (1) US2834046A (no)
BE (1) BE538171A (no)
DE (1) DE1105104B (no)
GB (1) GB785893A (no)
NL (1) NL89850C (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2958097A (en) * 1957-09-12 1960-11-01 American Viscose Corp Spinneret assembly
US2964788A (en) * 1958-06-20 1960-12-20 American Enka Corp Tube spinning assembly
US2968203A (en) * 1959-06-12 1961-01-17 Dow Chemical Co Spinnerette wrench
US2986775A (en) * 1958-11-07 1961-06-06 American Enka Corp Spinneret arrangement
US2988777A (en) * 1955-05-12 1961-06-20 Du Pont Spinning apparatus
US3061874A (en) * 1960-11-23 1962-11-06 Du Pont Melt spinning apparatus
US3540080A (en) * 1966-09-21 1970-11-17 Inventa Ag Device for the spinning of multicomponent synthetic fibers
US4744932A (en) * 1985-05-31 1988-05-17 Celanese Corporation Process for forming a skinless hollow fiber of a cellulose ester

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516571C (de) * 1930-01-24 1931-01-23 Alfred Lehner Dr Spinnduese und Spinnduesenhalter fuer die Herstellung von Kunstseide
GB394049A (en) * 1932-01-26 1933-06-22 Leonard Joseph Shone Improvements in and relating to the production of artificial fibres, horse-hair and the like
DE705881C (de) * 1937-08-16 1941-05-13 Karl Berndt Dr Ing Vorrichtung zum Drehspinnen von Kunstfaeden
DE733178C (de) * 1940-05-21 1943-03-20 Karl Berndt Dr Ing Vorrichtung zum Drehspinnen von Kunstfaeden
US2510135A (en) * 1947-08-25 1950-06-06 American Viscose Corp Method for spinning artificial filaments
US2642333A (en) * 1949-07-26 1953-06-16 Omni Products Corp Method of spinning polyvinyl alcohol fibers
US2698963A (en) * 1952-08-15 1955-01-11 American Viscose Corp Wet-spinning apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE517237A (no) * 1952-01-31

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516571C (de) * 1930-01-24 1931-01-23 Alfred Lehner Dr Spinnduese und Spinnduesenhalter fuer die Herstellung von Kunstseide
GB394049A (en) * 1932-01-26 1933-06-22 Leonard Joseph Shone Improvements in and relating to the production of artificial fibres, horse-hair and the like
DE705881C (de) * 1937-08-16 1941-05-13 Karl Berndt Dr Ing Vorrichtung zum Drehspinnen von Kunstfaeden
DE733178C (de) * 1940-05-21 1943-03-20 Karl Berndt Dr Ing Vorrichtung zum Drehspinnen von Kunstfaeden
US2510135A (en) * 1947-08-25 1950-06-06 American Viscose Corp Method for spinning artificial filaments
US2642333A (en) * 1949-07-26 1953-06-16 Omni Products Corp Method of spinning polyvinyl alcohol fibers
US2698963A (en) * 1952-08-15 1955-01-11 American Viscose Corp Wet-spinning apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988777A (en) * 1955-05-12 1961-06-20 Du Pont Spinning apparatus
US2958097A (en) * 1957-09-12 1960-11-01 American Viscose Corp Spinneret assembly
US2964788A (en) * 1958-06-20 1960-12-20 American Enka Corp Tube spinning assembly
US2986775A (en) * 1958-11-07 1961-06-06 American Enka Corp Spinneret arrangement
US2968203A (en) * 1959-06-12 1961-01-17 Dow Chemical Co Spinnerette wrench
US3061874A (en) * 1960-11-23 1962-11-06 Du Pont Melt spinning apparatus
US3540080A (en) * 1966-09-21 1970-11-17 Inventa Ag Device for the spinning of multicomponent synthetic fibers
US4744932A (en) * 1985-05-31 1988-05-17 Celanese Corporation Process for forming a skinless hollow fiber of a cellulose ester

Also Published As

Publication number Publication date
GB785893A (en) 1957-11-06
NL89850C (no)
BE538171A (no)
DE1105104B (de) 1961-04-20

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