AT90338B - Process for the extraction of fibers from reeds, in particular from cattail reeds. - Google Patents
Process for the extraction of fibers from reeds, in particular from cattail reeds.Info
- Publication number
- AT90338B AT90338B AT90338DA AT90338B AT 90338 B AT90338 B AT 90338B AT 90338D A AT90338D A AT 90338DA AT 90338 B AT90338 B AT 90338B
- Authority
- AT
- Austria
- Prior art keywords
- fibers
- reeds
- cattail
- extraction
- size
- Prior art date
Links
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
<Desc/Clms Page number 1>
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Es ist bekannt, aus Schilf eine Fa- ! er für die verschiedensten technischen Zwecke zu gewinnen. Das Verfahren besteht im wesentlichen darin, dass die Pflanze mit alkalischen Laufen behandelt wird, um sie aufzuschliessen. Die durch das Aufschliessen gewonnene Faser wird schliesslich mit Säuren verschiedener Art behandelt, gespült und getrocknet. Die so gewonnene Faser zeigt jedoch noch den Übelstand, dans die
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enthaltenen Klebe eine Schlichte bildet. welche verursacht, dass immer mehrere Fasern zusammenkleben.
Die Schlichte liess sich bisher nicht entfernen, ohne dass die Faser angegriffen wurde. \Vollte man die Schlichte durch Behandeln der Faser mit Säure entfernen, so würde die Faser durch die Säure zu stark angegriffen und in ihrer Beschaffenheit beeinträchtigt.
Gemäss der vorliegenden Erfindung wird nun die Schlichte in der Weise entfernt, dass man die
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Säure behandelt, derart, dass die Fasern hiebei nicht leiden. Nach Spülen der Fasern behufs der Entfernung der Säure erfolgt akdann die Behandlung, wie oben angegeben, mit diastatischen Präparaten.
Man hat zwar bereits vorgeschlagen, rohe Pflanzenfasern einer Vorbehandlung in einem verdünnten alkalischen Bade und einer nachfolgenden Behandlung mit einer schwach alkalischen Enzymlösung zu unterwerfen. Dieses Verfahren ist jedoch mit diastatischen Präparaten nicht ausführbar, da ein Bad, melehes letztere enthält, von Alkalien völlig frei sein muss, damit die oben beschriebene Wirkung der diastatischen Präparate eintritt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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EMI1.1
It is known to make a fa-! he can be won for various technical purposes. The process essentially consists of treating the plant with alkaline runs in order to break it down. The fiber obtained through the digestion is then treated with various types of acids, rinsed and dried. However, the fiber obtained in this way still shows the drawback, dans the
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contained adhesive forms a size. which causes several fibers to stick together.
Up to now, the size could not be removed without attacking the fiber. \ If the size is removed by treating the fiber with acid, the fiber would be too strongly attacked by the acid and its quality would be impaired.
According to the present invention, the size is now removed in such a way that the
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Treated with acid in such a way that the fibers do not suffer. After the fibers have been rinsed to remove the acid, treatment is then carried out, as indicated above, with diastatic preparations.
It has already been proposed to subject raw vegetable fibers to a pretreatment in a dilute alkaline bath and a subsequent treatment with a weakly alkaline enzyme solution. However, this method cannot be carried out with diastatic preparations, since a bath containing melehes of the latter must be completely free of alkalis for the above-described effect of the diastatic preparations to occur.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89183T | 1917-06-28 | ||
AT90338T | 1919-05-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT90338B true AT90338B (en) | 1922-12-11 |
Family
ID=25605153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90338D AT90338B (en) | 1917-06-28 | 1919-05-05 | Process for the extraction of fibers from reeds, in particular from cattail reeds. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT90338B (en) |
-
1919
- 1919-05-05 AT AT90338D patent/AT90338B/en active
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