AT56954B - Process for the production of easily vettable dyes of the indigo and thioindigo series. - Google Patents

Process for the production of easily vettable dyes of the indigo and thioindigo series.

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Publication number
AT56954B
AT56954B AT56954DA AT56954B AT 56954 B AT56954 B AT 56954B AT 56954D A AT56954D A AT 56954DA AT 56954 B AT56954 B AT 56954B
Authority
AT
Austria
Prior art keywords
dyes
vettable
indigo
production
thioindigo series
Prior art date
Application number
Other languages
German (de)
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of AT56954B publication Critical patent/AT56954B/en

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Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Anstatt wie in der Patentschrift   Nr.   51984 beschrieben ist, die Farbstoffe der Thiloindigoreihe oder andere indigoide Farbstoffe aus ihren   schwefelsauren Lösungen m Gegen-   wart von aromatischen Sulfo- und Karbonsäuren freizumachen, können die betreffenden Farbstoffe auch aus ihren   Leukoverbindungen, W) e   in der   Stammpatentschrift     Nr.     5050''   beschrieben ist, hergestellt werden, wenn   die Oxydation dieser Leukoverbmdungen bo   
 EMI1.2 
 oder Aminen im Sinne der Patentschriften Nr. 50509.

   Nr. 51982, Nr. 51983, Nr. 51985 und   Nr.     f) G953 erfolgt.   So wird beispielsweise ein sehr fein verteilter   Thioindigofarbstoff   erhalten, wenn man den Thioindigo bei Gegenwart von benzylsulfanilsaurem Salz mit Luft ausblÅast. 



   Beispiel. 
 EMI1.3 
 

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



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   Instead of freeing the dyes of the thiloindigo series or other indigoid dyes from their sulfuric acid solutions in the presence of aromatic sulfo and carboxylic acids, as described in patent specification No. 51984, the dyes in question can also be obtained from their leuco compounds, W) e in the parent patent No. 5050 '' is described, if the oxidation of these Leukoverbmdungen bo
 EMI1.2
 or amines within the meaning of patent specifications No. 50509.

   No. 51982, No. 51983, No. 51985 and No. f) G953. For example, a very finely divided thioindigo dye is obtained if the thioindigo is blown out with air in the presence of a benzylsulfanil acid salt.



   Example.
 EMI1.3
 

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

Claims (1)

50 Teilen benzylsulfanilsaurem Salz gelöst. Es wird dann mit Luft ausgeblasen und nach erfolgter Fällung der Farbstoff durch Filtration getrennt PATENT-ANSPRUCH : Weitere Ausbildung des durch das Patent Nr. 519S4, Zusatz zu Patent Nr. 50509. geschützten Verfahrens zur Herstellung leicht verküpbarer Farbstoffe, dadurch gekennzeichnet, dass man die Farbstoffe anstatt aus ihrer schwefelsauren Lösung, aus ihren Leuko- EMI1.4 EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. Dissolved 50 parts of benzylsulfanil acid salt. It is then blown out with air and, after precipitation has taken place, the dye is separated by filtration PATENT CLAIM: Further development of the process protected by patent no. 519S4, addendum to patent no. EMI1.4 EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT56954D 1909-09-27 1911-08-21 Process for the production of easily vettable dyes of the indigo and thioindigo series. AT56954B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE50509X 1909-09-27
DE56954X 1910-09-20

Publications (1)

Publication Number Publication Date
AT56954B true AT56954B (en) 1912-12-27

Family

ID=25749137

Family Applications (1)

Application Number Title Priority Date Filing Date
AT56954D AT56954B (en) 1909-09-27 1911-08-21 Process for the production of easily vettable dyes of the indigo and thioindigo series.

Country Status (1)

Country Link
AT (1) AT56954B (en)

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