AT113663B - Method of spinning copper silk. - Google Patents

Method of spinning copper silk.

Info

Publication number
AT113663B
AT113663B AT113663DA AT113663B AT 113663 B AT113663 B AT 113663B AT 113663D A AT113663D A AT 113663DA AT 113663 B AT113663 B AT 113663B
Authority
AT
Austria
Prior art keywords
spinning
copper silk
spinning copper
silk
copper
Prior art date
Application number
Other languages
German (de)
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Application granted granted Critical
Publication of AT113663B publication Critical patent/AT113663B/en

Links

Landscapes

  • Chemical Or Physical Treatment Of Fibers (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zum Spinnen von lupferseide. 



   Bei den bekannten Verfahren zum Spinnen von Kupferseide war es stets von besonderer Wichtigkeit, das Spinnen des Fadens in entlüftetem Wasser vorzunehmen, d. h. in einem Wasser, welches frei von gelösten Gasen war. 



   Es wurde nun die bemerkenswerte Beobachtung gen-acht, dass n an beim Spinnen von Kupferseide weit bessere Resultate erzielt, wenn iran das Spinnen in freie Kohlensäure enthaltenden   Fällung-   mitteln vornimmt. Wohl ist das Spinnen in   kohlensäurehaltigen   Fällungsmitteln bereits bekannt ; so wird 
 EMI1.1 
 und auch der Erfinder des deutschen Patentes 286297 benutzt Fällbäder, die Kupfer-oder Alkalicarbonate enthalten. Den Fäden, die mit solchen, neutrale kohlensaure Salze enthaltenden Bädern gefällt sind, fehlen aber alle die wichtigen Vorteile, die gerade das Verfahren gemäss der Erfindung auszeichnen.

   Gelingt es doch bei Verwendung freie Kohlensäure enthaltender Fällungsmittel einmal, neben der Vermeidung der bei andern gelösten Gasen stets auftretenden starken Spinnstörungen auch noch die Reissfestigkeit und Dehnung der so behandelten Seide beträchtlich zu erhöhen und ausserdem die bei längerem Spinnen immer auftretenden Kupferabscheidungen an den Wänden des   Spinntrichters   weitgehend zu verhüten. 



   Beispiel : Eine   Kupferoxydammoniak-Zelluloselösung   wird in einem Spinngefäss   üblicher   Art nach dem Streckspinnverfahren mit Wasser von etwa 320 gefällt, welches im Liter ungefähr 10-20 mg freie Kohlensäure enthält. Man kann für dieses Spinnverfahren auch Wasser von geringer Härte verwenden. Die weitere Aufarbeitung des gefällten Fadens erfolgt dann nach den in der Technik bekannten Methoden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Method of spinning lupfersilk.



   In the known methods of spinning copper silk, it has always been of particular importance to carry out the spinning of the thread in deaerated water, i. H. in water that was free from dissolved gases.



   The remarkable observation has now been made that n an achieved far better results in spinning copper silk if Iran spinning in precipitants containing free carbon dioxide. Spinning in carbonated precipitants is already known; so will
 EMI1.1
 and the inventor of the German patent 286297 also uses precipitation baths that contain copper or alkali carbonates. The threads which are precipitated with such baths containing neutral carbonic acid salts, however, lack all the important advantages which precisely characterize the process according to the invention.

   In addition to avoiding the strong spinning disturbances that always occur with other dissolved gases, the use of precipitating agents containing free carbonic acid succeeds in considerably increasing the tensile strength and elongation of the silk treated in this way and, moreover, the copper deposits on the walls of the spinning funnel that always occur during prolonged spinning largely to prevent.



   Example: A copper oxide ammonia cellulose solution is precipitated in a spinning vessel of the usual type using the draw spinning process with water of about 320, which contains about 10-20 mg of free carbonic acid per liter. Water of low hardness can also be used for this spinning process. The further processing of the precipitated thread then takes place according to the methods known in the art.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zum Spinnen von Kupferseide, dadurch gekennzeichnet, dass man das Spinnen in freie Kohlensäure enthaltenden Fällungsmitteln vornimmt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for spinning copper silk, characterized in that the spinning is carried out in precipitants containing free carbon dioxide. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT113663D 1926-06-11 1927-04-28 Method of spinning copper silk. AT113663B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE113663X 1926-06-11

Publications (1)

Publication Number Publication Date
AT113663B true AT113663B (en) 1929-06-25

Family

ID=5653473

Family Applications (1)

Application Number Title Priority Date Filing Date
AT113663D AT113663B (en) 1926-06-11 1927-04-28 Method of spinning copper silk.

Country Status (1)

Country Link
AT (1) AT113663B (en)

Similar Documents

Publication Publication Date Title
AT113663B (en) Method of spinning copper silk.
DE641819C (en) Process for the production of hydrocyanic acid from gases
CH127493A (en) Method of spinning copper silk.
DE516370C (en) Method of spinning copper silk
AT114433B (en) Method of spinning copper silk.
AT102276B (en) Process for the production of alkali cellulose which is particularly suitable for the production of fine and very fine thread viscose synthetic threads.
AT101959B (en) Production of lightfast lithopons.
DE710349C (en) Process for separating pure calcium aluminates from solutions
DE537997C (en) Method of spinning copper silk
DE371702C (en) Process for the production of chlorammonium and sodium bicarbonate in the purification of gases
CH131024A (en) Method of spinning rayon.
DE599451C (en) Process for the electrolytic treatment of sulphate liquors
DE356752C (en) Process for opening up cob reed (Typha), rushes, willow bark and the like Like plants
DE347368C (en) Process for the electrolytic production of alkali perborates
DE752739C (en) Process for the desilification of aluminate solutions
AT130213B (en) Process for the reprocessing of heavily diluted copper-containing precipitating liquid from the manufacture of expanded copper silk.
AT104239B (en) Process for the production of very fine thread viscose silk from weakly acidic ammonia salt baths.
DE579303C (en) Process for derusting fabrics while preserving the tensile strength as much as possible
DE753848C (en) Stabilizing alkaline peroxide bleaching baths
DE701417C (en) Process for the production of potassium permanganate by electrolytic means
AT94288B (en) Process for the utilization of digester waste liquors obtained from the digestion of straw.
AT71815B (en) Process for softening water.
AT19993B (en) Process for the electrolytic production of ammonia and caustic alkali.
AT97894B (en) Process for the deacidification of chlorammon liquors.
DE569784C (en) Process for the production of lithium salts and metallic lithium from lithium-containing starting materials