AT206569B - Process for producing zon rayon or staple fibers by spinning viscose - Google Patents

Process for producing zon rayon or staple fibers by spinning viscose

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Publication number
AT206569B
AT206569B AT323451A AT323451A AT206569B AT 206569 B AT206569 B AT 206569B AT 323451 A AT323451 A AT 323451A AT 323451 A AT323451 A AT 323451A AT 206569 B AT206569 B AT 206569B
Authority
AT
Austria
Prior art keywords
rayon
staple fibers
zon
producing
spinning viscose
Prior art date
Application number
AT323451A
Other languages
German (de)
Inventor
Shozo Dr Tachikawa
Original Assignee
Shozo Dr Tachikawa
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 Shozo Dr Tachikawa filed Critical Shozo Dr Tachikawa
Application granted granted Critical
Publication of AT206569B publication Critical patent/AT206569B/en

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Description

  

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  Verfahren zur Herstellung von Zellwolle bzw. Stapelfasern durch Verspinnen von Viskose 
 EMI1.1 
 

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 die Temperatur weitere 30 Minuten um   5 C   erhöht. Das so erhaltene Xanthogenat wurde dann derart in Wasser gelöst, dass die Viskose eine Alkalikonzentration von 4,2% und   eiyl-     CsUulosekonzentratioc   von   7, 8%   aufweist, wodurch eine Viskose hoher Viskosität von 750 Sekunden nuch Kugelfallmethoden erhalten wurde. Diese Viskose wurde bei der Hottenrothzahl von 30 in einem   Fällt'ad mit   15 g/1 Schwefelsäure und Spuren Glaubersalz und bei einer Badtemperatur von 30 C unter werfacher Streckung mit einer Spinngeschwindigkeit von 20 m/min gesponnen und dann der üblichen Nachbehandlung unterworfen.

   Auf diese Weise konnte eine ausgezeichnete Zellwolle erhalten werden, die eine   Nassfestigkeit   von   3, 5 g/den   sowie eine Festigkeit in 6%iger Natronlauge von 1,4 g/den (gewöhnlich höchstens 
 EMI2.1 
 als die üblichen   Zetwollen.  



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  Process for the production of rayon or staple fibers by spinning viscose
 EMI1.1
 

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 the temperature increased by 5 C for a further 30 minutes. The xanthate obtained in this way was then dissolved in water in such a way that the viscose had an alkali concentration of 4.2% and an ethyl-Csululosekonzentratioc of 7.8%, whereby a viscose of high viscosity of 750 seconds was obtained by falling ball methods. This viscose was spun at a Hottenroth number of 30 in a precipitator with 15 g / l sulfuric acid and traces of Glauber's salt and at a bath temperature of 30 ° C. with multiple stretching at a spinning speed of 20 m / min and then subjected to the usual aftertreatment.

   In this way it was possible to obtain excellent rayon staple with a wet strength of 3.5 g / denier and a strength in 6% sodium hydroxide solution of 1.4 g / denier (usually at most
 EMI2.1
 than the usual zetwollen.

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung von Zellwolle bzw. Stapelfasern durch Verspinnen von Viskose, dadurch gekennzeichnet, dass man auf eine nicht gereifte Alkaliceliulose mehr als 45% Schwefelkohlenstoff einwirken lässt, das dabei erhaltene Cellulosexanthogenat : sofort in Wasser lost and diese alkaliarme Viskose, bei der das Verhältnis von Alkali zu Cellulose unter 0,6 bleibt sowie die Hottenrothzahl über 20 EMI2.2 PATENT CLAIM: Process for the production of rayon or staple fibers by spinning viscose, characterized in that more than 45% carbon disulfide is allowed to act on an unripened alkali cellulose, the resulting cellulose xanthate: immediately dissolved in water and this low-alkali viscose, in which the ratio of Alkali to cellulose remains below 0.6 and the Hottenroth number remains above 20 EMI2.2
AT323451A 1943-07-16 1951-06-26 Process for producing zon rayon or staple fibers by spinning viscose AT206569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP206569X 1943-07-16

Publications (1)

Publication Number Publication Date
AT206569B true AT206569B (en) 1959-12-10

Family

ID=12033259

Family Applications (1)

Application Number Title Priority Date Filing Date
AT323451A AT206569B (en) 1943-07-16 1951-06-26 Process for producing zon rayon or staple fibers by spinning viscose

Country Status (1)

Country Link
AT (1) AT206569B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288238B (en) * 1962-08-18 1969-01-30 Kurashiki Rayon Co Process for the production of tubular, flat regenerated cellulose fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288238B (en) * 1962-08-18 1969-01-30 Kurashiki Rayon Co Process for the production of tubular, flat regenerated cellulose fibers

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