AT102276B - Process for the production of alkali cellulose which is particularly suitable for the production of fine and very fine thread viscose synthetic threads. - Google Patents

Process for the production of alkali cellulose which is particularly suitable for the production of fine and very fine thread viscose synthetic threads.

Info

Publication number
AT102276B
AT102276B AT102276DA AT102276B AT 102276 B AT102276 B AT 102276B AT 102276D A AT102276D A AT 102276DA AT 102276 B AT102276 B AT 102276B
Authority
AT
Austria
Prior art keywords
production
fine
particularly suitable
alkali cellulose
synthetic threads
Prior art date
Application number
Other languages
German (de)
Original Assignee
Herminghaus & Co Gmbh
Leopold Hesse Dr
Hermann Rathert Dr
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 Herminghaus & Co Gmbh, Leopold Hesse Dr, Hermann Rathert Dr filed Critical Herminghaus & Co Gmbh
Application granted granted Critical
Publication of AT102276B publication Critical patent/AT102276B/en

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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • 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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Die Erfindung betrifft ein Verfahren zur Herstellung von Alkalizellulose, die   sich zur Erzeugung   fein-und feinstfädiger Viskosekunstfäden besonders eignet. 
 EMI1.2 
   hauerstoffes hergestellt wird.   Das kann beispielsweise, in der Weise geschehen, dass bei Gegenwart von Reduktionsmitteln gearbeitet wird, indem der Zellstoff mit einer Lösung des Reduktionsmittels   getränkt   und dann merzerisiert oder aber indem der   Merzerisierlauge   das Reduktionsmittel zugefügt wird, oder aber in einer anderen zweckmässigen Weise.

   Man kann auch die Wirkung des Luftsauerstoffes durch den Zusatz reduzierend wirkender oder indifferenter Gase herabmindern oder ausschalten, dagegen wird nicht 
 EMI1.3 
 Weise gewonnene   Alkalizellulose,   der beim Zerkleinern im Zerkleinerungsapparat auch noch   Reduktion,, -.   mittel zugefügt werden können, wird dann in üblicherweise auf Viskose weiter verarbeitet. Die in dieser Weise hergestellte Alkalizellulose bietet wesentliche technische Vorteile.

   Die Grenzen für die Reife bzw. das Alter der hieraus erzeugten Viskose sind unerreicht weit umfassend, so dass das Verfahren einen ganz 
 EMI1.4 
 mit der üblichen Viskose bei Verwendung bekannter saurer Fällbäder die Reifedauer der Viskose um nicht mehr als zirka 12 Stunden bei üblicher Temperatur schwanken darf. ohne die Güte der Spinnerei und auch der Fäden zu gefährden, ist es nach dem vorliegenden Verfahren   möglich,   die Viskose innerhalb eines   mehr   
 EMI1.5 
   entwicklung   beim Spinnen zu verhindern, da sich die im Augenblick der Koagulation entstehenden   Schwefelwasserstoff-und Schwefligsäuregase   zu Schwefel umsetzen. 



   Mit gleich günstiger Wirkung ist das Verfahren anwendbar auch zur Herstellung von Stapelfaser bis zu den feinsten Einzelfäden. 
 EMI1.6 
 
 EMI1.7 
 in verschlossenen   Kästen bei 220   C. unterworfen. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung von zur Erzengung fein-und feinstfädiger Viskosekunstfäden besonder, 
 EMI1.8 
 Bildung von Oxy-Zellulose unter   Ausschluss   oder Verminderung der Luftsanerstoffwirkung ohne Evaku-   ierung   gegebenenfalls unter Zusatz von Reduktionsmitteln hergestellt wird. 

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



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   The invention relates to a method for the production of alkali cellulose, which is particularly suitable for the production of fine and very fine thread viscose synthetic threads.
 EMI1.2
   oxygen is produced. This can be done, for example, by working in the presence of reducing agents by soaking the pulp with a solution of the reducing agent and then mercerising it, or by adding the reducing agent to the mercerising liquor, or in another convenient way.

   The effect of atmospheric oxygen can also be reduced or switched off by adding reducing or indifferent gases, but this is not done
 EMI1.3
 Alkaline cellulose obtained in a manner which, when being crushed in the crushing apparatus, also has a reduction ,, -. agents can be added, is then usually processed further on viscose. The alkali cellulose produced in this way offers significant technical advantages.

   The limits for the maturity or the age of the viscose produced from this are unmatched and extensive, so that the process is completely
 EMI1.4
 With the usual viscose when using known acidic precipitation baths, the maturation time of the viscose must not fluctuate by more than about 12 hours at the usual temperature. Without endangering the quality of the spinning mill and also of the threads, it is possible according to the present method, the viscose within one more
 EMI1.5
   to prevent development during spinning, since the hydrogen sulphide and sulphurous acid gases produced at the moment of coagulation are converted into sulfur.



   The process can also be used to produce staple fibers down to the finest individual threads with the same beneficial effect.
 EMI1.6
 
 EMI1.7
 Subjected in locked boxes at 220 C.



   PATENT CLAIMS:
1. Process for the production of fine and very fine thread viscose artificial threads, especially
 EMI1.8
 Formation of oxy-cellulose with the exclusion or reduction of the air oxygen effect without evacuation, if necessary with the addition of reducing agents.

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

Claims (1)

2. Eine Ausführungsform des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass schon der Merzensierlauge das Reduktionsmittel zugefügt wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. An embodiment of the method according to claim 1, characterized in that the reducing agent is already added to the Merzensierlauge. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT102276D 1921-02-28 1922-02-03 Process for the production of alkali cellulose which is particularly suitable for the production of fine and very fine thread viscose synthetic threads. AT102276B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH84451D DE492663C (en) 1921-02-28 1921-02-28 Process for the production of fine and very fine fibers viscose artificial threads

Publications (1)

Publication Number Publication Date
AT102276B true AT102276B (en) 1926-01-11

Family

ID=7164195

Family Applications (1)

Application Number Title Priority Date Filing Date
AT102276D AT102276B (en) 1921-02-28 1922-02-03 Process for the production of alkali cellulose which is particularly suitable for the production of fine and very fine thread viscose synthetic threads.

Country Status (3)

Country Link
AT (1) AT102276B (en)
DE (1) DE492663C (en)
NL (1) NL21346C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743852C (en) * 1941-01-15 1944-01-04 Kurmaerkische Zellwolle Process for reducing the viscosity of viscose
DE748770C (en) * 1941-06-08 1944-11-09 Kurmaerkische Zellwolle Und Ze Process for reducing the viscosity of viscose
DE749084C (en) * 1941-10-07 1944-11-20 Kurmaerkische Zellwolle Und Ze Process for producing crimped viscose viscose viscose with a low swell value

Also Published As

Publication number Publication date
DE492663C (en) 1930-03-07
NL21346C (en)

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