AT77520B - Process for the production of staple fibers or cellulose. - Google Patents

Process for the production of staple fibers or cellulose.

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Publication number
AT77520B
AT77520B AT77520DA AT77520B AT 77520 B AT77520 B AT 77520B AT 77520D A AT77520D A AT 77520DA AT 77520 B AT77520 B AT 77520B
Authority
AT
Austria
Prior art keywords
cellulose
production
fibers
staple fibers
liquors
Prior art date
Application number
Other languages
German (de)
Original Assignee
Erste Oesterr Ungar Textil Fas
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 Erste Oesterr Ungar Textil Fas filed Critical Erste Oesterr Ungar Textil Fas
Application granted granted Critical
Publication of AT77520B publication Critical patent/AT77520B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Gewinnung von Spinnfasern oder Zellulose. 
 EMI1.1 
 kannten Behandlung mit alkalischen Laugen Gebrauch, jedoch im kombinierten Verfahren, gemacht wird. 



   Das Verfahren besteht im wesentlichen im folgenden :
Die Faserpflanzen bzw. Pflanzenfasern werden nach vorangegangener gebräuchlicher Reinigung und Zerkleinerung auf Stücke, welche Fasern vom gewünschten Stapel zu liefern vermögen, in Sulfitlaugen unter Druck gekocht (bei einer Temperatur von nicht mehr als 125 bis 130  C und einem Druck von nicht mehr als 5 bis 6 Atmosphären), wobei jedoch zum Unterschied von den gebräuchlichen Sulfitlaugen stark basische ver- wendet werden, welche etwa 60 bis 100 Gewichtsteile CaO auf 100 Gewichtsteile   jSOg   enthalten. Nach dem Kochen, das je nach Umständen etwa 6 bis 12 Stunden dauert, wird die Masse in einem alkalischen Bad (von 5 bis   10%piger   Soda oder Ätznatronlösung) einer mechanischen Bearbeitung unterzogen, durch welche die aufgeweichten Inkrustations- 
 EMI1.2 
 getrennt werden.

   Diese Bearbeitung kann in einem   Holländer   oder in einer ähnlich arbeitenden Maschine vorgenommen werden, welche auf das Gut schabend wirkt. 



   Die hiebei isolierten Fasern werden sodann gewaschen und können   gewünschtenfa. l1b   gebleicht werden und stellen ein zum Spinnen sehr gut verwendbares Material dar, sofern der Endzweck nicht in der Erzeugung von Zellulose besteht. 



   Die Ablaugen können in irgend einer bekannten Weise zugute gemacht werden, was jedoch nicht zum Gegenstand der Erfindung gehört. 

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



   <Desc / Clms Page number 1>
 



  Process for the production of staple fibers or cellulose.
 EMI1.1
 known treatment with alkaline lyes is used, but in a combined process.



   The procedure essentially consists of the following:
The fiber plants or plant fibers, after prior customary cleaning and comminution to pieces that can deliver fibers from the desired stack, are boiled in sulphite liquors under pressure (at a temperature of no more than 125 to 130 C and a pressure of no more than 5 to 6 atmospheres), but in contrast to the usual sulphite liquors, strongly basic ones are used, which contain about 60 to 100 parts by weight of CaO per 100 parts by weight of SOg. After boiling, which takes about 6 to 12 hours depending on the circumstances, the mass is subjected to mechanical processing in an alkaline bath (from 5 to 10% soda or caustic soda solution), through which the softened incrustation
 EMI1.2
 be separated.

   This processing can be carried out in a Dutch machine or in a similarly working machine, which has a scraping effect on the material.



   The fibers isolated in this way are then washed and can if desired. l1b are bleached and are a very useful material for spinning, provided that the end use is not the production of cellulose.



   The waste liquors can be used in any known manner, which, however, does not belong to the subject of the invention.

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

Claims (1)

PATENT-ANSPRUCH: Verfahren zur Gewinnung von Spinnfasern oder Zellulose aus schwer aufschliessbaren Faserpflanzen bzw. Pflanzenfasern durch Kochen in Sulfitlaugen und Behandlung mit alkalischen Laugen, dadurch gekennzeichnet, dass das Rohmaterial zunächst mit stark EMI1.3 Inkrustationsstoffe herauszubringen und die Fasern voneinander aus den'holzigen Teilen zu trennen. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the production of staple fibers or cellulose from difficult to digest fiber plants or plant fibers by boiling in sulphite liquors and treatment with alkaline liquors, characterized in that the raw material is initially strong EMI1.3 Bring out incrustation substances and separate the fibers from one another from the woody parts. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT77520D 1914-12-14 1914-12-14 Process for the production of staple fibers or cellulose. AT77520B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT77520T 1914-12-14

Publications (1)

Publication Number Publication Date
AT77520B true AT77520B (en) 1919-08-11

Family

ID=3599124

Family Applications (1)

Application Number Title Priority Date Filing Date
AT77520D AT77520B (en) 1914-12-14 1914-12-14 Process for the production of staple fibers or cellulose.

Country Status (1)

Country Link
AT (1) AT77520B (en)

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