AT8515B - Process for the preparation of brown substantive sulfur dyes. - Google Patents

Process for the preparation of brown substantive sulfur dyes.

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Publication number
AT8515B
AT8515B AT8515DA AT8515B AT 8515 B AT8515 B AT 8515B AT 8515D A AT8515D A AT 8515DA AT 8515 B AT8515 B AT 8515B
Authority
AT
Austria
Prior art keywords
brown
substantive
preparation
sulfur dyes
sulfur
Prior art date
Application number
Other languages
German (de)
Inventor
Arnold Dr Allers
Original Assignee
Arnold Dr Allers
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 Arnold Dr Allers filed Critical Arnold Dr Allers
Application granted granted Critical
Publication of AT8515B publication Critical patent/AT8515B/en

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Description

  

   <Desc/Clms Page number 1> 
 



     DR.   ARNOLD ALLERS IN PRAG. 



  Verfahren zut'Herstellung brauner substantiver   Schwefelfarbstofe.   
 EMI1.1 
 mehr röthlich, sondern mit tief dunkelbrauner Farbe im Wasser löst. In diesem Stadium wird 5 bis 10 Minuten verblieben, dann die   Masse rasch dem Reactionsgefäss   entnommen und entweder direct zum Färben verwendet oder der Farbstoff durch Auslaugen mit 
 EMI1.2 
   Das so erhabene Prodnct   ist nach Zerkleinerung der Trockensubstanz ein schwarzes bis   hraunes Pulver,   das sich in   warmem   Wasser wieder leicht mit   tiefbrauner   Farbe löst und imstande   ist, Baumwolle dir'ct   in einer   2-3%igen Farbflotte   in braunen Tönen anzufärben.

   Die erhaltenen Ausfärbungen zeichnen sich durch hervorragende Echtheit aus. 

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



   <Desc / Clms Page number 1>
 



     DR. ARNOLD ALLERS IN PRAGUE.



  Process for the production of brown substantive sulfur dyes.
 EMI1.1
 more reddish, but dissolves in water with a deep dark brown color. At this stage, 5 to 10 minutes are left, then the mass is quickly removed from the reaction vessel and either used directly for dyeing or the dye is leached with it
 EMI1.2
   After the dry matter has been comminuted, the product so raised is a black to brown powder which easily dissolves in warm water with a deep brown color and is able to dye cotton directly in a 2-3% dye liquor in brown tones.

   The colorations obtained are distinguished by their excellent fastness.

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

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Herstellung brauner substantiver Schwefelfarbstoffe, dadurch gekennzeichnet, dass man Gambier oder Catechu mit Schwefelalkali schmilzt und bei circa 240 bis 250 C. Schwefel einträgt, die Masse einige Zeit auf dieser Temperatur erhält und dann erkalten lässt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the production of brown substantive sulfur dyes, characterized in that Gambier or Catechu is melted with sulfur alkali and sulfur is introduced at around 240 to 250 C., the mass is kept at this temperature for some time and then allowed to cool. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT8515D 1900-12-24 1900-12-24 Process for the preparation of brown substantive sulfur dyes. AT8515B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT8515T 1900-12-24

Publications (1)

Publication Number Publication Date
AT8515B true AT8515B (en) 1902-07-25

Family

ID=3501240

Family Applications (1)

Application Number Title Priority Date Filing Date
AT8515D AT8515B (en) 1900-12-24 1900-12-24 Process for the preparation of brown substantive sulfur dyes.

Country Status (1)

Country Link
AT (1) AT8515B (en)

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