CH178753A - Process for the production of an acidic dye of the Safranin series. - Google Patents

Process for the production of an acidic dye of the Safranin series.

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Publication number
CH178753A
CH178753A CH178753DA CH178753A CH 178753 A CH178753 A CH 178753A CH 178753D A CH178753D A CH 178753DA CH 178753 A CH178753 A CH 178753A
Authority
CH
Switzerland
Prior art keywords
safranin
series
production
acidic dye
sulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH178753A publication Critical patent/CH178753A/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrrole Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines sauren Farbstoffes der     Safraninreilie.       Gegenstand des vorliegenden Patentes  ist     ein    Verfahren zur Herstellung eines sauren       Farbstoffes    der     Safraninreihe.    Es ist dadurch  gekennzeichnet,

   dass man die aus     o-Tolyl-2-          naphthylamin-7-sulfonsäure    und     4-Aminodi-          äthylanilin    hergestellte     Isorosinduliri-9-sul-          fonsäure    mit     Bisulfit    in die     6.9-Disulfonsäure     überführt und diese mit     4'-Methoxy-4-amino-          dipheriylamin-2-sulfonsäure    umsetzt.

    
EMI0001.0015     
         Beispiel     Die in üblicher Weise aus 32     gr        o-Tolyl-          2-naphthylamin-7-sulfonsäure    und 17     gr        4-          Aminodiäthylanilin    hergestellte     Isorosindulin-          9-sulfonsäure    wird mit     Bisulfit    in die     6.9-          Disulfonsäure    übergeführt und diese in wäs  seriger Lösung mit 30     gr        4'-Methogy-4-          aminodiphenylamin-2-sulfonsäure    (Na-Salz)

    unter Zusatz von 20     gr        Natriumacetat        krist.     erwärmt. Der erhaltene     Farbstoff    der wahr  scheinlichen Formel:      löst sich in konzentrierter Schwefelsäure  grasgrün, in Wasser klar grünstickig blau  und färbt Wolle gut egalisierend licht- und  waschecht in sehr klarer) grünstickig blauen  Tönen.



  Process for the production of an acid dye of the Safranin vine. The subject of the present patent is a process for the preparation of an acidic dye of the safranine series. It is characterized by

   that the isorosinduliri-9-sulphonic acid produced from o-tolyl-2-naphthylamine-7-sulphonic acid and 4-aminodiethylaniline is converted with bisulphite into 6,9-disulphonic acid and this with 4'-methoxy-4-aminodipheriylamine -2-sulfonic acid converts.

    
EMI0001.0015
         EXAMPLE The isorosindulin- 9-sulfonic acid, prepared in the usual way from 32 gr o-tolyl-2-naphthylamine-7-sulfonic acid and 17 gr 4-aminodiethylaniline, is converted into 6.9-disulfonic acid with bisulfite and this in aqueous solution with 30 gr 4 '-Methogy-4-aminodiphenylamine-2-sulfonic acid (Na salt)

    with the addition of 20 gr of sodium acetate crystalline. warmed up. The resulting dye of the probable formula: dissolves in concentrated sulfuric acid grass green, in water clear greenish blue and dyes wool in very clear, greenish blue shades, which are good equalizing lightfast and washfast.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Farbstoffes der Safraninreihe, dadurch ge kennzeichnet, dass man die aas o-Tolyl-2- naphthylamin-7-sulforisäui e und 4-Aminodi- äthylanilin hergestellte Isorosindulin-9-sulfon- säure mit Bisulfit in die 6.9-Disulfonsäui,e überführt und diese mit 4'-Methogy-4-amirio- diphenylamiri-2-sulfonsäure umsetzt. PATENT CLAIM: Process for the production of an acidic dye of the Safranin series, characterized in that the aas o-tolyl-2-naphthylamine-7-sulforisäui e and 4-aminodiethylaniline produced isorosindulin-9-sulfonic acid with bisulfite in the 6.9 -Disulfonsäui, e transferred and this is reacted with 4'-Methogy-4-amirio- diphenylamiri-2-sulfonic acid. Der Farbstoff löst sich in konzentrierter Schwefelsäure grasgrün, in Wasser klar grünstickig blau und färbt Wolle gut egali sierend licht- und waschecht in sehr klaren grünstickig blauen Tönen. The dye dissolves grass green in concentrated sulfuric acid, clear greenish blue in water and dyes wool in very clear greenish blue tones in a well-leveling lightfast and washfast.
CH178753D 1933-01-14 1934-01-12 Process for the production of an acidic dye of the Safranin series. CH178753A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE178753X 1933-01-14
CH174350T 1934-01-12

Publications (1)

Publication Number Publication Date
CH178753A true CH178753A (en) 1935-07-31

Family

ID=25719509

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178753D CH178753A (en) 1933-01-14 1934-01-12 Process for the production of an acidic dye of the Safranin series.

Country Status (1)

Country Link
CH (1) CH178753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764879C (en) * 1937-09-05 1954-05-31 Siemens & Halske A G Process for the production of different colored patterns on aluminum and aluminum alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764879C (en) * 1937-09-05 1954-05-31 Siemens & Halske A G Process for the production of different colored patterns on aluminum and aluminum alloys

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