US2908937A - Method and apparatus for the manufacture of yarn - Google Patents

Method and apparatus for the manufacture of yarn Download PDF

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Publication number
US2908937A
US2908937A US556256A US55625655A US2908937A US 2908937 A US2908937 A US 2908937A US 556256 A US556256 A US 556256A US 55625655 A US55625655 A US 55625655A US 2908937 A US2908937 A US 2908937A
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United States
Prior art keywords
yarn
tube
spinneret
liquid
section
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Expired - Lifetime
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US556256A
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English (en)
Inventor
Hesselink Frans
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Akzona Inc
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American Enka Corp
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Publication date
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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

  • the liquid in this portion is greater than the velocity in the second tube portion.
  • the velocity in the first portion varies in direct relation to the ratio between yarn by means of the liquid portion of the spinning zone where tenacity, high denier, viscose the cross-sections .of the surfaces .of both'tube portions. It can be seenfrom this that the velocity of the liquid in .the first tube portion can be increased to the extent necessary and is most efiicient at substantially the velocity of the yarn. In this way, the yarn passes in a straight line, but under a minimum of tension, until it has been sufiiciently coagulated and regenerated to apply more tension. i 4
  • a hook or other manual device can be used, but preferably a liquid head can be temporarily maintained so that the yarn is propelledby hydrostatic pressure of thec'haracter such as that shown in co-pending application Serial No. 515,146, filed June 13, 1955, now Patent No. 2,834,046 which is assigned to the same assignee as the present application.
  • the figure which shows a preferred embodiment of the invention, is a diagrammatic view in elevation of the spinneret, tube and spinbath'assembly.
  • a spinneret 10 mounted on a supply tube 11 which is connected to a viscose conduit, not shown, The spinneret 10 is submerged in a sulphuric acid containing spinbath 12.
  • a twodiameter tube 13 is mounted in supports l4 and 15 and disposed concentrically with respect to spinneret 10. As shown, the tube 13 consists of a smaller diameter section 16, a middle frusto-conical section 17, a larger diameter section 18, and is open at bothends.
  • The'srnaller section 16 of the tube is provided with a flanged inlet end 19 adjacent the spinneret 10,, and is in the shape of a fiat trumpet.
  • the yarn 20 is formed of a plurality of filaments as it is drawn through the orifices in the face of 'spinneret 10, and is guided by means of roller 21 which is disposed adjacent the outlet end of the'larger, section 18 of tube 13.
  • the yarn is 'then drawn from the bath by any suitable means, such as a godet, not shown, located beyond guide roller 22; or the guide roller 22 can be positively driven for propelling the yarn.
  • the process is particularly adapted for spinning high yarn which has been prepared by adding to the viscose or the spinbath, or both, some of thewell-known regenerationretardants such as quinoline, hexamethylenediamine, mono-isopropanol, etc.
  • some of thewell-known regenerationretardants such as quinoline, hexamethylenediamine, mono-isopropanol, etc.
  • the yarn that is formed is extremely sensitive to exterior influences near the spinneret. Therefore, by using a tube of such shape that the yarn per se can regulate the velocity of the liquid in the first part of the coagulating zone, an extremely eflicient treatment of the yarn at high speeds can be realized.
  • the yarn can be collected at substantially higher speeds and with high stretching without any detrimental effects resulting.
  • each portion of the tube depends on the denier of the yarn to bespun and the size of the spinnerets employed. In each case, it is a simple matter for one'skilled in the art to select the effective cross-section that corresponds with the inner diameter of the smaller tubeportion, namely, it should only slightly exceed the outer ring of spinneret orifices. (See the figure.) Then it iseasy to select the proper cross-section and length of the second larger tube portion in such a way that the 3 coagulation liquid in the first tube portion moves at substantially the same velocity as the yarn, which prevents the liquid from exercising any detrimental mechanical action on the yarn.
  • the frusto-conical portion connects the smaller and larger sections at a gradual taper, 7
  • the inner diameter of the smaller portion of the spinning tube is preferably 20-40% larger than that of the outer ring of the spinneret orifices.
  • the inlet opening is in the shape of a short flat trumpet and is disposed concentrically as close as possible 1 to the spinneret.
  • it is preferable to gradually taper the frusto-conical portion whereby the sucking action obtains a maximum value and the filaments of the yarn spread uniformly throughout the interior of the tube.
  • the outer ring of spinneret orifices has, for example, a diameter of about 9 mm., in which case the smaller tube portion should be about 10-12 mm.
  • the inner diameter of the wide tube portion should be about 1.2 to 1.5 times larger than the narrow tube portion. It has been determined that the length of the wide tube portion should be 25-40 cm. in order to exercise a satisfactory sucking action. With respect to the middle frustoconical portion, it has been found that its length should, at most, be twice that of the inner diameter of the wide tube portion.
  • the improvement which comprises a spinning tube mounted concentric with the spinneret, said spinning tube having two cylindrical tube sections of different diameters connected intermediate the ends thereof by a frusto-conical section, the smaller tube section being slightly larger than the diameter of the example, 1600 denier, for use in making tire cord, the I diameter of the outer ring of spinneret orifices is usually about 16 mm., in which case, the inner diameter of the narrow tube portion should be approximately 20-22 mm.
  • a tube may be satisfactory which has a narrow tube portion length of 30 cm., and a diameter of 21 mm.
  • the second portion has a length of 20 cm. and a diameter of 27 mm.
  • the frusto-conical portion has a length of 5 cm.
  • the inlet opening of the narrow tube portion is preferably provided with a flat trumpet-shaped flange, and is placed as close as possible to the spinneret face without inhibiting the free flow of coagulation liquid into the tube or causing a turbulence.
  • the correct spacing is determined by the denier of the yarn, the diameter of the spinneret face, and the spinning velocity. As a rule it is preferred to space the inlet opening a distance of 5-20 mm. from the face of the spinneret.
  • Example A viscose solution was prepared from cotton linters having a cellulose content of 7.7% by weight, an alkali content of 5.5% by weight, a xanthate ratio of 0.47 and a ball fall viscosity of 60 sec., to which 0.16% by weight of quinoline was added. It was spun, by means of the system described above, in a spinbath maintained at 60 C. containing 6% by weight of sulphuric acid, 19% by weight of sodium sulphate and 3.8% by weight of zinc sulphate. In the spinning operation a gold-platinum spinneret was used in which 1060 orifices each having a diameter of 60 micron had been drilled.
  • the diameter of the outer ring of spinning orifices was 16 mm..
  • the narrower tube portion had an inner diameter of 21 mm., the wider tube portion an inner diameter of 27 mm., the length of the narrow tube portion being 30 cm. and that of the wider tube portion 19 cm.
  • the length of the frustoconical portionbetween these two portions was 4 cm. long.
  • the outer diameter of the trumpet-shaped inlet opening was 4 cm. This inlet opening was situated at a distance of 2 cm. from the spinneret.
  • the primary drawing-01f speed was m./min. and the winding-up speed was 80 m./min., the resulting stretch being 100%.
  • apparatus for the manufacture of rayon including a spinneret to extrude a spinning solution into an acid coagulating bath to form yarn therefrom and means to withdraw the yarn from the bath at a higher velocity than the rate of extrusion
  • the improvement which comprises a spinning tube mounted concentrically 5-20 mm. from the face of the spinneret, said tube consisting of two cylindrical sections of different diameters connected by a gradually tapering section intermediate the ends of said spinning tube, the inlet end of the smaller tube section being nearer the spinneret than the larger tube section and the inner diameter of the larger tube section being 1.21.5 times greater than the inner diameter of the smaller tube section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
US556256A 1955-01-11 1955-12-29 Method and apparatus for the manufacture of yarn Expired - Lifetime US2908937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL337977X 1955-01-11

Publications (1)

Publication Number Publication Date
US2908937A true US2908937A (en) 1959-10-20

Family

ID=19784602

Family Applications (1)

Application Number Title Priority Date Filing Date
US556256A Expired - Lifetime US2908937A (en) 1955-01-11 1955-12-29 Method and apparatus for the manufacture of yarn

Country Status (7)

Country Link
US (1) US2908937A (xx)
BE (2) BE542542A (xx)
CH (2) CH337977A (xx)
DE (2) DE1112604B (xx)
FR (2) FR1144219A (xx)
GB (2) GB784896A (xx)
NL (1) NL84656C (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071806A (en) * 1958-01-29 1963-01-08 Celanese Corp Wet spinning column and process
US4159299A (en) * 1976-04-06 1979-06-26 Serkov Arkady T Method for the production of rayon
US20080023873A1 (en) * 2004-09-17 2008-01-31 Birla Research Institute For Applied Sciences Process for Preparing a Non-Woven Cellulosic Structure and the Non-Woven Cellulosic Structure Prepared Therefrom
US20130300013A1 (en) * 2008-04-18 2013-11-14 Mitsubishi Rayon Co., Ltd. Wet spinning apparatus and method for wet spinning

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL244855A (xx) * 1958-11-21
DE3125221A1 (de) * 1981-06-26 1983-03-10 Ivan Gavrilovič Šimko Verfahren zum herstellen eines texturierten hydratzellulosefadens und einrichtung zum erzeugen eines spinnkoerpers
EP2721202A1 (de) 2011-06-15 2014-04-23 Trützschler Nonwovens GmbH Spinnbadwanne
DE202013101041U1 (de) 2013-03-11 2013-03-18 TRüTZSCHLER GMBH & CO. KG Vorrichtung zum Zuführen von Spinnmasse zu einer Spinndüse

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243116A (en) * 1936-03-09 1941-05-27 American Bemberg Corp Apparatus for use in manufacturing artificial filaments
US2511699A (en) * 1947-11-10 1950-06-13 Comptoir Textiles Artificiels Method for spinning viscose
FR1026847A (fr) * 1950-09-08 1953-05-05 Procédé de fabrication de produits filés artificiels
US2642333A (en) * 1949-07-26 1953-06-16 Omni Products Corp Method of spinning polyvinyl alcohol fibers
US2659102A (en) * 1951-03-14 1953-11-17 Du Pont Spinning viscose rayon
US2700794A (en) * 1950-07-31 1955-02-01 British Celanese Wet-spinning cells

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE509294C (de) * 1930-10-06 Fr Kuettner Akt Ges Spinntrichter zur Herstellung von Kunstseide nach dem Streckspinnverfahren
DE644786C (de) * 1937-05-13 Fr Kuettner Akt Ges Spinntrichter zur Herstellung von Kunstseide nach dem Streckspinnverfahren
DE478928C (de) * 1929-07-04 Fritz Tschirch Dr Ing Spinnvorrichtung fuer das Streckspinnverfahren mit einem einen ringfoermigen Einlauffuer die Faellfluessigkeit bildenden, die Spinnbrause und den Trichter aufnehmenden Spinnkopf
US827434A (en) * 1905-08-22 1906-07-31 Ernst Willy Friedrich Apparatus for the production of artificial threads.
DE220051C (xx) * 1907-05-15
DE464384C (de) * 1926-04-04 1928-08-16 Karl Koske Vorrichtung zum Spinnen von Kunstfaeden nach dem Streckspinnverfahren
DE685803C (de) * 1935-11-26 1939-12-27 Eduard Wurtz Vorrichtung zur Herstellung von Faeden aus Spinnloesungen, insbesondere von Kunstseidefaeden
DE678210C (de) * 1936-03-09 1939-07-10 Bemberg Ag Vorrichtung zum Herstellen von Kunstseide
GB504132A (en) * 1937-10-25 1939-04-20 Courtaulds Ltd Improvements in and relating to the manufacture and production of artificial threads
US2386411A (en) * 1943-04-17 1945-10-09 American Viscose Corp Device for collecting filamentary materials
US2402846A (en) * 1943-06-19 1946-06-25 Albert O Ryan Method of and means for forming filamentary articles
US2550808A (en) * 1949-10-25 1951-05-01 Du Pont Coagulating bath circulating eductor
AT179606B (de) * 1951-07-06 1954-09-25 Onderzoekings Inst Res Flüssigkeitsbehandlungswanne für laufende Fäden

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243116A (en) * 1936-03-09 1941-05-27 American Bemberg Corp Apparatus for use in manufacturing artificial filaments
US2511699A (en) * 1947-11-10 1950-06-13 Comptoir Textiles Artificiels Method for spinning viscose
US2642333A (en) * 1949-07-26 1953-06-16 Omni Products Corp Method of spinning polyvinyl alcohol fibers
US2700794A (en) * 1950-07-31 1955-02-01 British Celanese Wet-spinning cells
FR1026847A (fr) * 1950-09-08 1953-05-05 Procédé de fabrication de produits filés artificiels
US2659102A (en) * 1951-03-14 1953-11-17 Du Pont Spinning viscose rayon

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071806A (en) * 1958-01-29 1963-01-08 Celanese Corp Wet spinning column and process
US4159299A (en) * 1976-04-06 1979-06-26 Serkov Arkady T Method for the production of rayon
US20080023873A1 (en) * 2004-09-17 2008-01-31 Birla Research Institute For Applied Sciences Process for Preparing a Non-Woven Cellulosic Structure and the Non-Woven Cellulosic Structure Prepared Therefrom
US20130300013A1 (en) * 2008-04-18 2013-11-14 Mitsubishi Rayon Co., Ltd. Wet spinning apparatus and method for wet spinning
US9234301B2 (en) * 2008-04-18 2016-01-12 Mitsubishi Rayon Co., Ltd. Method for wet spinning

Also Published As

Publication number Publication date
GB816687A (en) 1959-07-15
DE1112604B (de) 1961-08-10
NL84656C (xx)
CH337977A (de) 1959-04-30
DE1123795B (de) 1962-02-15
CH341597A (de) 1959-10-15
GB784896A (en) 1957-10-16
FR1144219A (fr) 1957-10-10
BE550120A (xx)
BE542542A (xx)
FR70444E (fr) 1959-05-06

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