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US1850007A - Apparatus for the manufacture of artificial threads - Google Patents

Apparatus for the manufacture of artificial threads Download PDF

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Publication number
US1850007A
US1850007A US474812A US47481230A US1850007A US 1850007 A US1850007 A US 1850007A US 474812 A US474812 A US 474812A US 47481230 A US47481230 A US 47481230A US 1850007 A US1850007 A US 1850007A
Authority
US
United States
Prior art keywords
funnel
spinning
manufacture
thread
artificial threads
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
US474812A
Other languages
English (en)
Inventor
Glover Walter Hamis
Bond George Douglas
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Application granted granted Critical
Publication of US1850007A publication Critical patent/US1850007A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing

Definitions

  • This invention relates to the manufacture and production of artificial threads by the stretch spinning process, such as is employed for the production of artificial threads from solutions of cellulose in copper oxide ammonia. It is well known that difficulties are experienced in the production of uniform threads by this method, and that at least some of these difficulties are caused by eddies or currents in the precipitating liquid contained in the spinning funnel. These eddies or currents arise by reason of the fact that the thread, when descending inside the spinning funnel, carries down with it a considerable quantity of the precipitating liquid, the quantity of liquid thus carried downwards being greater than the quantity of replenishing liquid which is ordinarily introduced into the funnel.
  • a part of the precipitating liquid which is carried down by the thread will consequently return in an upward direction to the middle or upper regions of the spin ning funnel, and it is the eddies and currents produced by this upward movement of the precipitating liquid which cause irregularities in the thread which is being spun.
  • various devices have been proposed for insertion into the spinning funnel, as for example, subsidiary funnels of various shapes, such as conical, long, short, nar row or wide funnels with restricted outlets; it has also been proposed to insert into the spinning funnel a volute taper funnel, with a continuous spiral space throughout the Whole length of the said volute taper funnel.
  • WVe have now found that improvements in the stretch spinning process are obtained by inserting material provided with numerous small holes between the wall of the spinning funnel and the thread which is being spun.
  • the said material may for example be conical or cylindrical in form and may consist of a glass funnel perforated with a comparatively large number of holes.
  • a conical or cylindrical sheet of metal perforated with a large number of small holes, or a cone of cylinder of woven wire gauze may also be employed.
  • the said material may be arranged to extend from the lower end of the spinning funnel to above the jet, or it may be made shorter, provided it surrounds those parts of the thread which are susceptible to eddies or currents in the precipitating liquid.
  • the filaments descend more regularly than hitherto through the precipitating liquid and have little or no tendency to sway from side to. side.
  • A is the spinning funnel
  • B the nozzle through which the cellulosic solution is proected into the precipitating bath
  • C isthe pipe through which fresh precipitating liquid is conveyed to the funnel
  • D representsv the thread which passes downwards and is drawn away from the lower end of the funnel A.
  • the said material E indicates the material having numerous small holes and situated between the funnel A and the thread D.
  • the said material E may consist of wire gauze, the mesh of which may vary within wide limits, or it may consist of a perforated sheet of metal, glass or other suitable material.
  • perforated material E is shown cylindrical in form; itinay, however, if desired, be conical or of any other suitable shape.
  • Apparatus for the production of artificial threads by the stretch spinning process comprising a spinning funnel and Wire auze v situated inside the said spinning funne and surrounding those parts of the thread which are susceptible to eddies or currents in the precipitating liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Prostheses (AREA)
  • Woven Fabrics (AREA)
  • Artificial Filaments (AREA)
US474812A 1929-11-04 1930-08-12 Apparatus for the manufacture of artificial threads Expired - Lifetime US1850007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33547/29A GB339745A (en) 1929-11-04 1929-11-04 Improvements in the manufacture and production of artificial threads and in apparatus therefor

Publications (1)

Publication Number Publication Date
US1850007A true US1850007A (en) 1932-03-15

Family

ID=10354357

Family Applications (1)

Application Number Title Priority Date Filing Date
US474812A Expired - Lifetime US1850007A (en) 1929-11-04 1930-08-12 Apparatus for the manufacture of artificial threads

Country Status (4)

Country Link
US (1) US1850007A (fr)
DE (1) DE538393C (fr)
FR (1) FR700722A (fr)
GB (1) GB339745A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084384A (en) * 1959-07-24 1963-04-09 Celanese Corp Wet spinning apparatus and process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084384A (en) * 1959-07-24 1963-04-09 Celanese Corp Wet spinning apparatus and process

Also Published As

Publication number Publication date
DE538393C (de) 1931-11-16
FR700722A (fr) 1931-03-06
GB339745A (en) 1930-12-18

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