US2182762A - Manufacture of artificial silk - Google Patents

Manufacture of artificial silk Download PDF

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Publication number
US2182762A
US2182762A US112046A US11204636A US2182762A US 2182762 A US2182762 A US 2182762A US 112046 A US112046 A US 112046A US 11204636 A US11204636 A US 11204636A US 2182762 A US2182762 A US 2182762A
Authority
US
United States
Prior art keywords
thread
roller
manufacture
yarn
diameter
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
US112046A
Other languages
English (en)
Inventor
Mengeringhausen Ernst
Berndt Franz
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.)
North American Rayon Corp
Original Assignee
North American Rayon Corp
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
Application filed by North American Rayon Corp filed Critical North American Rayon Corp
Application granted granted Critical
Publication of US2182762A publication Critical patent/US2182762A/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
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/28—Reciprocating or oscillating guides
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • D01D7/00—Collecting the newly-spun products
    • D01D7/02—Collecting the newly-spun products in centrifugal spinning pots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to the manufacture of yarn of artificial origin in accordance with the wet-spinning process, but primarily is concerned with a device for the controlled stretching of freshly extruded artificial silk threads.
  • Another object of the present invention is to devise a means which may be easily adapted for use in spinning machines now employed in the industry.
  • a further object of the present invention is to devise a drawing roller which will take the place of two driven rollers as is now common in the art.
  • a still further object of the present invention is todevise a means for uniformly controlling the change of tension whereby uneven'shrinkage in the yarn body is compensated for with resultant 'yarn or filaments of 'even dyeing qualities.
  • a still further object lies in the assurance of obtaining a perfectly uniform, accurately predeterminable increase of tension.
  • FIG. 1 is a side elevation of the new device
  • Fig. 2 is an end view thereof
  • f Fig. 3 is a side elevation of a modified form of the new device.
  • Fig. 4 is a side elevation of another modified form of the new device.
  • the thread 2 extruding from the spinnerette I is drawn off by the stepped roller 3, passed around the latter a plurality of times and then collected in the spin pot 4.
  • the stepped roller 3 comprises a conical surface 5 and a cylindrical surface 6.
  • the thread first contacts with the conical portion 5 of the roller 3 and is wound a plurality of times around the large diameter a thereof.
  • the thread guide I the thread is then passed to the cylindrical portion 6 of the stepped roller 3. After being wound around the latter a plurality of times it is led to the spin pot 4.
  • Owing to the passing of the thread from the of the thread is gradually increased which is accomplished by gradually shifting the thread from the large diameter a of the portion to the small diameter b thereof.
  • the shifting of the thread may be effected through the axial displacement of the stepped roller 3 while the thread guide 8 remains stationary, or the latter may be axially displaced while the stepped roller remains stationary.
  • the denier of the thread is gradually increased.
  • the said increase of denieris practically abolished, so that a thread having a uniform denier throughout is obtained.
  • the stepped roller may alsobe so constructed that the diameter a of the conical surface 5 is as large as that of the surface 6; or it may even be somewhat larger than the latter.
  • the thread on passing from surface'5 to surface 6 is first not stretched but only as the spinning process progresses, while in the second case the tension exerted on the thread is at first even somewhat reduced; n
  • Fig. 3 of the drawing winch is a modified form of the new invention. Since, as is well known, not only dyeing differences are the result of irregular shrinkage of the spun cake, but also variations of the denier of thread, Fig. 3 discloses a device which will eliminate these irregularities.
  • the surface 5 cylindrical and the surface 5 conical i. e., the latter would be larger in diameter than the former, and by first leading the freshly extruded thread around the cylindrical portion, the thread is drawn from the spinnerette in a uniform denier because the circumferential speed of the cylindrical portion remains uniform throughout the entire spinning process. After passing around the cylindrical portion a plurality of times, the thread is led to the larger conical surface, If the thread is now slowly shifted from the small diameter of the latter to the larger diameter thereof, the thread is not only increasingly stretched but at the same time gradually reduced in denier.
  • a combination comprising a spinnerette for extruding the thread, a means for collecting a thread into a yarn body, a driven roller positioned between said spinnerette and said collecting means, said driven roller having different diameter surfaces, one of said surfaces being shaped to conform to a frusto cone and the other being of a cylindrical shape, means to guide said thread over said surfaces and means to vary the position of said thread on said conical surface as the yarn body is built up.
  • a device for the uniform stretching of freshly extruded threads of artificial origin comprising a stepped roller adapted to draw off a freshly extruded thread, one step of said stepped roller comprising a conical roller and the second step of said stepped roller comprising a cylindrical roller, said conical roller being smaller in diameter than said cylindrical roller, guiding means adapted to guide said thread around the surfaces of said stepped roller, and means to vary the position of said thread on said conical surface as the yarn body is built up.
  • a device of the class set forth comprising a stepped roller adapted to throw off a freshly extruded thread, one step of said stepped roller comprising a cylindrical roller and the other step of said stepped roller comprising a conical roller, said cylindrical roller being smaller in diameter than said conical roller, guiding means adapted to guide said thread around the surfaces of said stepped roller, and means to vary the position of said thread on said conical surface as said body is built up.
  • a device of the class set forth comprising a stepped roller adapted to draw off a freshly extruded thread, one step of said stepped roller comprising a conical surface and the second step thereof comprising a cylindrical surface, the smallest diameter of said conical surface being of the same size as the diameter of said cylindrical surface, guiding means adapted to guide said thread around the surfaces of said stepped roller, and means to vary the relative position of said conical surface and said guiding means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US112046A 1935-11-26 1936-11-21 Manufacture of artificial silk Expired - Lifetime US2182762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1935V0032324 DE689065C (de) 1935-11-26 1935-11-26 Verfahren und Vorrichtung zum Herstellen einer gleichmaessig anfaerbenden Kunstseidenach dem Nassspinnverfahren

Publications (1)

Publication Number Publication Date
US2182762A true US2182762A (en) 1939-12-05

Family

ID=27770842

Family Applications (1)

Application Number Title Priority Date Filing Date
US112046A Expired - Lifetime US2182762A (en) 1935-11-26 1936-11-21 Manufacture of artificial silk

Country Status (4)

Country Link
US (1) US2182762A (sl)
AT (1) AT150616B (sl)
DE (1) DE689065C (sl)
NL (1) NL46125C (sl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440057A (en) * 1944-03-15 1948-04-20 Du Pont Production of viscose rayon
US2599603A (en) * 1946-02-23 1952-06-10 Lustrafil Ltd Apparatus for advancing strands
US2779457A (en) * 1954-12-01 1957-01-29 American Viscose Corp Method and apparatus for treating yarn strands
US3090077A (en) * 1959-03-13 1963-05-21 Canadian Ind Drawing of synthetic polymers
US4362260A (en) * 1979-12-12 1982-12-07 Toray Industries, Inc. Yarn feeding apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748052C (de) * 1937-01-08 1944-10-25 Courtaulds Ltd Verfahren zur Herstellung von Zellwolle
BE634228A (sl) * 1962-12-27

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440057A (en) * 1944-03-15 1948-04-20 Du Pont Production of viscose rayon
US2599603A (en) * 1946-02-23 1952-06-10 Lustrafil Ltd Apparatus for advancing strands
US2779457A (en) * 1954-12-01 1957-01-29 American Viscose Corp Method and apparatus for treating yarn strands
US3090077A (en) * 1959-03-13 1963-05-21 Canadian Ind Drawing of synthetic polymers
US4362260A (en) * 1979-12-12 1982-12-07 Toray Industries, Inc. Yarn feeding apparatus

Also Published As

Publication number Publication date
AT150616B (de) 1937-09-10
NL46125C (sl)
DE689065C (de) 1940-03-09

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