CH178752A - 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
CH178752A
CH178752A CH178752DA CH178752A CH 178752 A CH178752 A CH 178752A CH 178752D A CH178752D A CH 178752DA CH 178752 A CH178752 A CH 178752A
Authority
CH
Switzerland
Prior art keywords
series
production
acidic dye
acid
safranin
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 CH178752A publication Critical patent/CH178752A/en

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Description

  

      Verfahren    zur Herstellung eines sauren     Farbstoffes    der     Safraninreihe.       Gegenstand des vorliegenden Patentes  ist ein Verfahren zur Herstellung eines sauren  Farbstoffes der     Safraninreihe.    Es ist dadurch  gekennzeichnet, dass man die aus     p-Anisyl-          ss-naphthylainin    und     4-Amiriodiäthylariilin-3-          srilfonsäure    hergestellte     Isoi,

  osindulin-l-sulfon-          säure    mit     Bisulfit    in die     1.6-Disulfonsäure     überführt und diese mit     2'-Methoxy-4-amino-          diplieriylarniri-2-sulfonsäure    umsetzt.

      <I>Beispiel</I>  Die in üblicher Weise aus 30     gr        p-Anisyl-          /3-naphthylamin    und 26     gr        4-Aminodiäthyl-          ariilin-3-sulfonsäure    hergestellte     Isorosin-          dulin-l-sulfonsäure    wird durch Behandeln mit       Bisulfit    in die     1.6-Disulfonsäure    übergeführt  und diese in wässeriger Lösung mit.

   30     gr          2'-Methoxy    - 4 -     aminodiphenylamin-    2     -sulfon-          säure    unter Zusatz von 20     gr        Natriumacetat          krist.    erwärmt. Der erhaltene Farbstoff der  wahrscheinlichen Formel:  
EMI0001.0033     
      löst sich in konzentrierter Schwefelsäure  grasgrün, in Wasser klar     grünstichig    blau.  



  Es färbt Wolle gut egalisierend     licht-          und    waschecht in sehr klaren     grünstichig     blauen Tönen.



      Process for the production of an acidic dye of the Safranin series. The subject of the present patent is a process for the preparation of an acidic dye of the safranine series. It is characterized in that the Isoi prepared from p-anisyl- ss-naphthylamine and 4-amiriodiäthylariilin-3-sulfonic acid,

  Osindulin-1-sulfonic acid converted with bisulfite into 1,6-disulfonic acid and this is reacted with 2'-methoxy-4-aminodiplieriylarniri-2-sulfonic acid.

      <I> Example </I> The isorosindulin-1-sulfonic acid prepared in the usual way from 30 g of p-anisyl- / 3-naphthylamine and 26 g of 4-aminodiethylarilin-3-sulfonic acid is converted into the 1.6-disulfonic acid converted and this in aqueous solution with.

   30 g of 2'-methoxy - 4 - aminodiphenylamine-2-sulfonic acid with the addition of 20 g of sodium acetate crystalline. warmed up. The obtained dye of the likely formula:
EMI0001.0033
      dissolves grass green in concentrated sulfuric acid, clear greenish blue in water.



  It dyes wool with good leveling properties, lightfast and washfast, in very clear, greenish blue tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Farbstoffes der Safraninreihe, dadurch ge kennzeichnet, dass man die aus p-Anisyl-ss- naphthylamin und 4-Aminodiäthylanilin-3- sulfonsäure hergestellte .Isorosindulin-l-sul- fonsäure mit Bisulfit in die 1.6-Disulfonsäure überführt und diese mit 2'-Methoxy-4-amino- diphenylamin-2-sulfonsäure umsetzt. PATENT CLAIM: A process for the production of an acidic dye of the safranine series, characterized in that the .Isorosindulin-1-sulphonic acid produced from p-anisyl-ss-naphthylamine and 4-aminodiethylaniline-3-sulphonic acid is converted with bisulphite into 1,6-disulphonic acid transferred and this is reacted with 2'-methoxy-4-aminodiphenylamine-2-sulfonic acid. Der neue Farbstoff löst sich in konzen trierter Schwefelsäure grasgrün, in Wasser klar grünstichig blau. Es färbt Wolle gut egalisierend licht- und waschecht in sehr klaren grünstichig blauen Tönen. The new dye dissolves in concentrated sulfuric acid grass green, in water it is clear, greenish blue. It dyes wool with good leveling properties, lightfast and washfast, in very clear, greenish blue tones.
CH178752D 1933-01-14 1934-01-12 Process for the production of an acidic dye of the Safranin series. CH178752A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE178752X 1933-01-14
CH174350T 1934-01-12

Publications (1)

Publication Number Publication Date
CH178752A true CH178752A (en) 1935-07-31

Family

ID=25719508

Family Applications (1)

Application Number Title Priority Date Filing Date
CH178752D CH178752A (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) CH178752A (en)

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