CH170408A - Process for treating the spun material in the production of rayon from viscose solution. - Google Patents

Process for treating the spun material in the production of rayon from viscose solution.

Info

Publication number
CH170408A
CH170408A CH170408DA CH170408A CH 170408 A CH170408 A CH 170408A CH 170408D A CH170408D A CH 170408DA CH 170408 A CH170408 A CH 170408A
Authority
CH
Switzerland
Prior art keywords
rayon
spun material
treating
production
viscose solution
Prior art date
Application number
Other languages
German (de)
Inventor
Arnold Dr Bernstein
Waldhof Zellstofffabrik
Original Assignee
Arnold Dr Bernstein
Waldhof Zellstoff Fab
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 Arnold Dr Bernstein, Waldhof Zellstoff Fab filed Critical Arnold Dr Bernstein
Publication of CH170408A publication Critical patent/CH170408A/en

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Landscapes

  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

  

  Verfahren zur Behandlung des Spinngutes bei der Herstellung  von Kunstseide aus     Viskoselösung.       Bei der Herstellung von künstlichen Fäden  und ähnlichen Gebilden aus     Viskoselösung     verfährt man in der Technik in der Regel  derart, dass man die künstlichen Gebilde in  einer sauren Flüssigkeit zur Ausscheidung  bringt. Die Spinnmasse ist wohl koaguliert,  aber noch nicht gebrauchsfertig, weil das  Spinngut sich noch im ungefestigten gequol  lenen Zustand befindet.  



  Die Erfindung     betrifft    nun ein Verfahren  zur Behandlung des Spinngutes bei der Her  stellung von Kunstseide aus     Viskoselösung,     bei welcher das aus einem sauren     Fällungs-          bade    heraustretende Spinngut, während es  noch nicht ganz erhärtet ist; unmittelbar durch  ein seine Verfestigung vervollständigendes  heisses Wasserbad geleitet wird. Dieses Ver  fahren kennzeichnet sich dadurch, dass das  Spinngut beim Durchgang durch das heisse  Wasserbad einer starken Spannung ausgesetzt  und nach Verlassen des Bades auf     Aufwickel-          spulen    geleitet wird.

      Man kann beispielsweise in folgender  Weise verfahren  Das aus einer sauren     Fällflüssigkeit    aus  tretende Spinngut wird, während es noch nicht  ganz erhärtet ist, sofort in einem heissen  fliessenden Wasserbade von ca.<B>700</B> C eine  Strecke von 50 cm hindurchgezogen und dabei  gleichzeitig einer starken Spannung ausge  setzt. Zu diesem Zwecke leitet man das  Spinngut z. B. über Rollen oder andere ge  eignete Führungen, die es dadurch, dass sie  seinen Weg verlängern und den Reibungs  widerstand vergrössern, einer Spannung unter  werfen.  



  Es ist an sich bekannt, die künstlichen  Fäden zu strecken. Dieser Vorgang vollzieht  sich aber bei den bekannten Verfahren im  ersten     Fällungsbade,    in welchem der Faden  noch einen vollkommen weichen und elasti  schen Charakter hat, und bezweckt in erster  Linie den Faden zu einer grösseren Feinheit  auszuziehen.      Beim beschriebenen Verfahren dagegen  wird das Spinngut, das bereits stärker er  härtet ist, unter der Einwirkung der heissen  wässerigen Flüssigkeit gespannt, wobei leine  nennenswerte Verringerung des     Querschnittes     auftritt. Dabei findet eine wesentliche Er  höhung der Festigkeit statt, deren Erklärung  vermutlich in einer Verschiebung und Parallel  stellung der     Zelluloseteilchen        (Micelle)    zu  suchen ist.



  Process for treating the spun material in the production of rayon from viscose solution. In the production of artificial threads and similar structures from viscose solution, the technique generally used in technology is to excrete the artificial structures in an acidic liquid. The spinning mass is probably coagulated, but not yet ready for use because the spinning material is still in the unsolidified, swollen state.



  The invention now relates to a method for treating the spun material in the manufacture of rayon from viscose solution, in which the spun material emerging from an acidic precipitation bath while it is not yet fully hardened; is passed directly through a hot water bath which completes its solidification. This process is characterized by the fact that the spun material is subjected to strong tension as it passes through the hot water bath and, after leaving the bath, is directed onto winding bobbins.

      One can proceed, for example, in the following way: The spinning material emerging from an acidic precipitating liquid is immediately pulled through a distance of 50 cm in a hot, flowing water bath of approx. 700 C while it has not yet completely hardened at the same time exposed to great tension. For this purpose, the spun material is passed z. B. on roles or other ge suitable guides that it by the fact that they extend its path and increase the friction resistance, throw a tension under.



  It is known per se to stretch the artificial threads. In the known processes, however, this process takes place in the first precipitation bath, in which the thread still has a completely soft and elastic character, and its primary purpose is to pull the thread out to a greater fineness. In the method described, on the other hand, the spun material, which has already hardened to a greater extent, is stretched under the action of the hot aqueous liquid, with a noticeable reduction in cross-section occurring. A substantial increase in strength takes place, the explanation of which is probably to be sought in a shift and parallel position of the cellulose particles (micelles).

Claims (1)

PATENTANSPRUCH: Verfahren zur Behandlung des Spinngutes bei der Herstellung von Kunstseide aus Vis- koselösung, bei welcher das aus einem sauren Fällungsbade heraustretende Spinngut, wäh rend es noch nicht ganz erhärtet ist, unmittel bar durch ein seine Verfestigung vervollstän digendes heisses Wasserbad geleitet wird, dadurch gekennzeichnet, dass das Spinngut beim Durchgang durch das heisse Wasserbad einer starken Spannung ausgesetzt und nach Verlassen des Bades auf Aufwickelspulen geleitet wird. PATENT CLAIM: A method for treating the spun material in the production of rayon from viscose solution, in which the spinning material emerging from an acidic precipitation bath, while it is not yet completely hardened, is passed directly through a hot water bath that completes its solidification characterized in that the spun material is exposed to strong tension as it passes through the hot water bath and, after leaving the bath, is passed onto take-up bobbins.
CH170408D 1928-08-09 1929-06-21 Process for treating the spun material in the production of rayon from viscose solution. CH170408A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE170408X 1928-08-09
DE200329X 1929-03-20

Publications (1)

Publication Number Publication Date
CH170408A true CH170408A (en) 1934-07-15

Family

ID=25754691

Family Applications (1)

Application Number Title Priority Date Filing Date
CH170408D CH170408A (en) 1928-08-09 1929-06-21 Process for treating the spun material in the production of rayon from viscose solution.

Country Status (1)

Country Link
CH (1) CH170408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767434C (en) * 1938-10-04 1952-08-07 Spinnstofffabrik Zehlendorf A Process for the production of artificial threads with particularly high wet strength using the viscose process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767434C (en) * 1938-10-04 1952-08-07 Spinnstofffabrik Zehlendorf A Process for the production of artificial threads with particularly high wet strength using the viscose process

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