AT26568B - Method for dressing Hede. - Google Patents

Method for dressing Hede.

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Publication number
AT26568B
AT26568B AT26568DA AT26568B AT 26568 B AT26568 B AT 26568B AT 26568D A AT26568D A AT 26568DA AT 26568 B AT26568 B AT 26568B
Authority
AT
Austria
Prior art keywords
hede
dressing
treatment
bleaching
water
Prior art date
Application number
Other languages
German (de)
Inventor
Benjamin Cushing Mudge
Original Assignee
Benjamin Cushing Mudge
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 Benjamin Cushing Mudge filed Critical Benjamin Cushing Mudge
Application granted granted Critical
Publication of AT26568B publication Critical patent/AT26568B/en

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  • Treatment Of Fiber Materials (AREA)

Description

  

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 dauern und sorgfältig überwacht und sofort unterbrochen werden, wenn die Faser Neigung zum   Afürbeworden   zeigt. Nach der Behandlung mit Säure kann die Faser gegebenenfalls mit Wasser gewaschen werden und nachher wird das Material mit einer wässerigen Lösung von kalzinierter Soda von etwa   1'015   spezifischem Gewicht bei einem durch Pressluft er-   zeugten 1'4 Atm.   nicht überschreitenden Druck,   während   ungefähr einer Stunde behandelt.   Die   Lösung kann dabei kochend heiss benutzt werden.

   Durch diese Behandlung wird nicht nur jede Spur von Säure neutralisiert, sondern auch die Auflösung des Zellenbindemittels der Schaben fortgesetzt und eine weitere Zerkleinerung der Schäben herbeigeführt und zugleich das Bleichen   vervollständigt. Schliesslich wird   das Material mit Wasser gewaschen. 



   Die   Schäben   sind nach Vornahme der obigen Operationen zumeist noch so gross, dass sie der Verarbeitung des Produktes hinderlich sind, und werden dadurch vollständig in feine Fasern zerlegt, dass man auf das zuletzt beschriebene Waschen mit Wasser die Behandlung mit dem   Säurebad   und die Behandlung mit Sodalösung in der angegebenen Reihenfolge ein-oder mehreremal folgen lässt, wobei die Konzentration der Lösungen bei jeder folgenden   Wiederholung dieser   Operationen schwächer gewählt wird, als bei der vorangehenden. Die Behandlung des Matoriales ist dann als beendigt anzusehen, wenn die   Schaben vollständig   verschwunden, d. i. zu feinen in dem Material gleichmässig verteilten Fasern zerkleinert worden sind. 



   Wird das Bleichen der Masse   nicht gewünscht,   so kann das Bleichbad entfallen, in- 
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 and be carefully monitored and interrupted immediately if the fiber shows a tendency to advance. After the treatment with acid, the fiber can optionally be washed with water and then the material is treated with an aqueous solution of calcined soda with a specific gravity of about 1015 at a pressure of 14 atm. not exceeding pressure, treated for about an hour. The solution can be used boiling hot.

   This treatment not only neutralizes any trace of acid, but also continues the dissolution of the cockroach's cell binding agent and causes the shives to be further crushed and at the same time completed the bleaching. Finally the material is washed with water.



   After the above operations have been carried out, the shives are mostly still so large that they are a hindrance to the processing of the product, and are therefore completely broken down into fine fibers that after the last-described washing with water, the treatment with the acid bath and the treatment with soda solution can follow one or more times in the specified order, the concentration of the solutions being chosen to be weaker for each subsequent repetition of these operations than for the previous one. The treatment of the matorial is to be regarded as ended when the cockroaches have completely disappeared, i. i. have been comminuted into fine fibers evenly distributed in the material.



   If the bleaching of the mass is not desired, the bleaching bath can be omitted,
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AT26568D 1903-04-10 1903-04-10 Method for dressing Hede. AT26568B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT26568T 1903-04-10

Publications (1)

Publication Number Publication Date
AT26568B true AT26568B (en) 1906-11-26

Family

ID=3538190

Family Applications (1)

Application Number Title Priority Date Filing Date
AT26568D AT26568B (en) 1903-04-10 1903-04-10 Method for dressing Hede.

Country Status (1)

Country Link
AT (1) AT26568B (en)

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