DE475871C - Process for spinning rayon threads from solutions in which one or more baths are used to form the thread - Google Patents

Process for spinning rayon threads from solutions in which one or more baths are used to form the thread

Info

Publication number
DE475871C
DE475871C DEG69038D DEG0069038D DE475871C DE 475871 C DE475871 C DE 475871C DE G69038 D DEG69038 D DE G69038D DE G0069038 D DEG0069038 D DE G0069038D DE 475871 C DE475871 C DE 475871C
Authority
DE
Germany
Prior art keywords
baths
thread
solutions
air
spinning
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
Application number
DEG69038D
Other languages
German (de)
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.)
Grunert & Giannetti
Original Assignee
Grunert & Giannetti
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 Grunert & Giannetti filed Critical Grunert & Giannetti
Application granted granted Critical
Publication of DE475871C publication Critical patent/DE475871C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • D01F2/04—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts from cuprammonium solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Verfahren zum Spinnen von Kunstseidenfäden aus Lösungen, bei welchen zur Bildung des Fadens ein oder mehrere Bäder angewandt werden Es ist bekannt, daß Luft in der zur Ausfällung dienenden Fällflüssigkeit das Spinnen ungünstig beeinflußt. Um diesem C-bel abzuhelfen, bedient man sich der Evakuierung, d. h. die Luft wird vollkommen aus dem Fällbad beseitigt, bevor es in die Spinnmaschine eintritt.Process for spinning rayon threads from solutions in which one or more baths are used to form the thread. It is known that Air in the precipitating liquid used for precipitation has an unfavorable effect on spinning. To remedy this c-bel, one uses the evacuation, i. H. the air will completely removed from the precipitation bath before it enters the spinning machine.

Es hat sich nunmehr gezeigt, daß die störende Wirkung der Luft in der Fällfliissigkeit dadurch herabgemindert werden kann, daß man dem lufthaltigen Fällbad neue Luft-oder Gasmengen zuführt. Durch das Einführen von Luft in die Fällbadflüssigk.eit erfolgt eine Umgestaltung der in ihr vorhandenen kleinen Luftbläschen insofern, als die in Mengen eingeführten aufsteigenden großen Luftblasen (etwa von Erbsengröße) die in der Flüssigkeit schon vorhandenen kleinen Luftbläschen aufnehmen und zusammen mit diesen leicht aus der Fällflüssigkeit ausscheiden. Etwaige durch Reibung der aufsteigenden großen Luftblasen an die Flüssigkeit wieder abgegebene oder in derselben zurückgelassene feine Luftbläschen üben dann praktisch keinen schädlichen Einfluß auf die Fadenbildung aus. Es hat sich gezeigt, daß bei einer derartig belüfteten Flüssigkeit, z. B. in einer kurz gehaltenen hängenden Wassersäule, die feinen Bläschen durch den Wasserstrom mitgerissen werden und nur wenige zur Ausscheidung kommen. Bei einer langhängenden Wassersäule findet eine lebhaftere Ausscheidung von Luft statt.It has now been shown that the disruptive effect of the air in The precipitating liquid can be reduced by adding the aerated Fällbad supplies new amounts of air or gas. By introducing air into the precipitation bath liquid the small air bubbles present in it are remodeled to the extent that than the large, rising air bubbles (about the size of a pea) introduced in abundance absorb the small air bubbles already present in the liquid and collect them with these can be easily separated from the precipitating liquid. Any due to friction of the rising large air bubbles released into the liquid or in the same fine air bubbles left behind then exert practically no harmful influence on the thread formation. It has been shown that with such a ventilated Liquid, e.g. B. in a short hanging column of water, the fine bubbles are carried away by the flow of water and only a few are excreted. With a long-hanging column of water there is a livelier excretion of air instead of.

Man läßt daher dieses belüftete Wasser durch eine möglichst lang gebaute Spinnvorrichtung fließen, wobei die Wassersäule unter einem höheren Vakuum steht, gegenüber der bekannten Anordnung und mithin mehr Neigung zu einer lebhafteren Ausscheidung von Luftbläschen gegenüber der normalen Spinnvorrichtung zeigt.This aerated water is therefore passed through a water that is as long as possible Spinning device flow, with the water column under a higher vacuum, compared to the known arrangement and therefore more inclination towards a more lively excretion of air bubbles versus the normal spinning device.

Der Vorteil, der Erfindung gegenüber den bisher bekannten Verfahren besteht darin, daß man zur -Durchführung des vorliegenden Verfahrens keine weitere Vorrichtung benötigt. Zur Belüftung bedient man sich meist der Druckluft.The advantage of the invention over the previously known method consists in the fact that you do not have to carry out the present process Device required. Compressed air is usually used for ventilation.

Claims (1)

PATENTANSPRUCH: Verfahren zum Spinnen von Kunstseidenfäden aus Lösungen. bei welchen zur Bildung des Fadens ein oder mehrere Bäder angewandt werden, dadurch gekennzeichnet, daß diese Bäder durch einen oder mehrere Luft- oder Gasströme derart belüftet werden, daß so erzeugte größere Luftblasen die in. der Flüssigkeit schon vorhandenen kleinen Luftbläschen aufnehmen und hierauf mit ihnen aus - der Fällflüssigkeit ausgeschieden werden.PATENT CLAIM: Process for spinning rayon threads from solutions. in which one or more baths are used to form the thread, thereby characterized in that these baths by one or more air or gas flows in such a way are ventilated so that larger air bubbles generated in. The liquid already absorb existing small air bubbles and then take them out - the precipitating liquid be eliminated.
DEG69038D 1926-12-24 1926-12-25 Process for spinning rayon threads from solutions in which one or more baths are used to form the thread Expired DE475871C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE282670T 1926-12-24

Publications (1)

Publication Number Publication Date
DE475871C true DE475871C (en) 1929-05-03

Family

ID=31893825

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG69038D Expired DE475871C (en) 1926-12-24 1926-12-25 Process for spinning rayon threads from solutions in which one or more baths are used to form the thread

Country Status (3)

Country Link
DE (1) DE475871C (en)
FR (1) FR645972A (en)
GB (1) GB282670A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916571C (en) * 1950-08-22 1954-08-12 Harry Asdour Kuljian Process for the production of artificial threads from cellulose hydrate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916571C (en) * 1950-08-22 1954-08-12 Harry Asdour Kuljian Process for the production of artificial threads from cellulose hydrate

Also Published As

Publication number Publication date
FR645972A (en) 1928-11-06
GB282670A (en) 1928-10-11

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