DE685980C - Process for spinning copper oxide ammonia cellulose solutions - Google Patents

Process for spinning copper oxide ammonia cellulose solutions

Info

Publication number
DE685980C
DE685980C DEI57524D DEI0057524D DE685980C DE 685980 C DE685980 C DE 685980C DE I57524 D DEI57524 D DE I57524D DE I0057524 D DEI0057524 D DE I0057524D DE 685980 C DE685980 C DE 685980C
Authority
DE
Germany
Prior art keywords
copper oxide
cellulose solutions
ammonia cellulose
oxide ammonia
spinning copper
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
DEI57524D
Other languages
German (de)
Inventor
Dr Max Otto Schuermann
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.)
IG Farbenindustrie AG
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
Priority claimed from DEI57237D external-priority patent/DE682884C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI57524D priority Critical patent/DE685980C/en
Application granted granted Critical
Publication of DE685980C publication Critical patent/DE685980C/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)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Description

Verfahren zum Verspinnen von ICupferoxydammoniakcelluloselösungen Im Patent 68--,884 ist eine Methode beschrieben, das Kupferstreckspinnverfahren mit ammoniakalischem `Vassür als Fällflüssigkeit, insbesondere mit bereits gebrauchter Fällflüssigkeit, auszuführen, und zwar in Gegenwart geringer Mengen gelöster Erdalkalisalze.A process for spinning ICupferoxydammoniakcelluloselösungen In patent 68 - 884 a method is described, the copper expanded spinning process with ammoniacal `Vassür as a precipitating liquid, in particular with already used precipitating liquid to carry out, namely in the presence of low amounts of dissolved alkaline earth metal salts.

Es _ hat sich nun herausgestellt, daß plan an Stelle der Erdalkalisalze mit demselben Erfolg auch Erdalkalihydroxyde, beispielsweise Calciumhydroxyd, verwenden kann. Eine besonders vorteilhafte Ausführungsform dieses Verfahrens ist die, daß man der ammoniak- und kupferhaltigen, gebrauchten Fällflüssigkeit einen gewissen Prozentsatz, beispielsweise 3o%, einer durch Zusatz eines Überschusses von Calciumhydroxyd vom Kupfer befreiten, im wesentlichen NH3 und Ca(OH)2 enthaltenden gebrachten Fällflüssigkeit wieder zusetzt. Hinsichtlich der zuzusetzenden Mengen gilt das im Hauptpatent Gesagte.It has now been found that instead of the alkaline earth salts Use alkaline earth metal hydroxides, for example calcium hydroxide, with the same success can. A particularly advantageous embodiment of this method is that the ammonia and copper-containing, used precipitating liquid is given a certain amount Percentage, for example 30%, of one by adding an excess of calcium hydroxide The precipitating liquid which has been freed from copper and essentially contains NH3 and Ca (OH) 2 clogs again. With regard to the amounts to be added, the statements made in the main patent apply.

Die so erhaltenen Fasern sind, im Gegensatz zu den ohne Zusatz gewonnenen, frei von verklebten Faserbüscheln.The fibers obtained in this way are, in contrast to those obtained without additives, free of stuck tufts of fibers.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren zum Verspinnen von Kupferoxydammoniakcelluloselösungen gemäß Patent 682884, dadurch gekennzeichnet, daß ,an Stelle von Erdalkalisalzen Erdalkalihydroxyde verwendet werden. PATENT CLAIMS: r. Process for spinning copper oxide ammonia cellulose solutions according to patent 682884, characterized in that alkaline earth metal hydroxides are used instead of alkaline earth metal salts. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß .als Zusatz bereits gebrauchte, mit Calciumhydroxydüberschuß entkupferte Fällflüssi,gkeit Verwendung findet.2. The method according to claim r, characterized in that that. as an additive already used precipitating liquid decoppered with excess calcium hydroxide Is used.
DEI57524D 1937-02-27 1937-03-24 Process for spinning copper oxide ammonia cellulose solutions Expired DE685980C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI57524D DE685980C (en) 1937-02-27 1937-03-24 Process for spinning copper oxide ammonia cellulose solutions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEI57237D DE682884C (en) 1937-02-27 1937-02-27 Process for spinning copper oxide ammonia cellulose solutions
DEI57524D DE685980C (en) 1937-02-27 1937-03-24 Process for spinning copper oxide ammonia cellulose solutions

Publications (1)

Publication Number Publication Date
DE685980C true DE685980C (en) 1939-12-29

Family

ID=25981981

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI57524D Expired DE685980C (en) 1937-02-27 1937-03-24 Process for spinning copper oxide ammonia cellulose solutions

Country Status (1)

Country Link
DE (1) DE685980C (en)

Similar Documents

Publication Publication Date Title
DE685980C (en) Process for spinning copper oxide ammonia cellulose solutions
DE400131C (en) Process for washing and cleaning textiles and other laundry items
DE618614C (en) Process for bright pickling of metals
DE545867C (en) Process for the chemical treatment of frosted glass objects
DE747490C (en) Process for improving the spinnability of cellulose hydrate fibers
DE436061C (en) Copper oxide ammonia cellulose solution for spinning rayon using the draw spinning process
DE600470C (en) Process for swelling, parchmenting or gelatinizing fibrous cellulose
DE1938443A1 (en) Process for the production of nickel-II-hydroxide
DE550877C (en) Process for the processing of heavily diluted copper-containing precipitated fluids from the manufacture of expanded copper silk
DE702001C (en) Method for improving casein fibers
DE725695C (en) Method of washing vegetable fibers
AT101959B (en) Production of lightfast lithopons.
DE564000C (en) Process for the production of artificial structures such as threads, ribbons, aqueous fibroin solutions to be processed
DE935659C (en) Prevention of corrosion in steam boilers, etc.
DE694152C (en) Process for separating thorium from thorium in addition to iron-containing substances, in particular from
DE542816C (en) Process for the production of cellulose solutions using copper hydroxide and aqueous ethylene diamine
DE416557C (en) Process for the aftertreatment of artificial threads and other cellulose structures made of viscose or other cellulose compounds
DE327310C (en) Seed dressing
DE975801C (en) Process for impregnating textiles with aqueous dispersions of paraffin or waxes containing metal salts in a single bath process
DE924527C (en) Process for improving the production of hollow or artificial viscose threads or fibers containing chambers
AT141625B (en) Electrolyte, in particular for electrolytic capacitors.
DE694480C (en) Process for processing raw materials containing tartaric acid
DE725301C (en) Process for the electrolytic oxidation of magnesium alloys
DE699060C (en) Procedure for removing milk stone
DE900124C (en) Process for the production of threads or fibers by spinning copper oxide ammonia cellulose solutions