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CH128155A - Process for the preparation of a dye of the phenonaphtosafranine series. - Google Patents

Process for the preparation of a dye of the phenonaphtosafranine series.

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Publication number
CH128155A
CH128155A CH128155DA CH128155A CH 128155 A CH128155 A CH 128155A CH 128155D A CH128155D A CH 128155DA CH 128155 A CH128155 A CH 128155A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
acid
phenonaphtosafranine
series
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH128155A publication Critical patent/CH128155A/en

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Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Phenonaphtosafraninreihe.       Es wurde gefunden, dass ein neuer, wert  voller Farbstoff entsteht, wenn man     1-Amino-          5        -methyl-    4     -monomethylanilin-    2     -sulfosäure     mit     3-Diäthylisorosindulin-1.6.12-trisulfo-          säure    der Formel  
EMI0001.0010     
    kondensiert.

   Die entstandene     Phenonaphto-          safranintrisulfosäure    enthält eine     Sulfo-          gruppe    in     Orthostellung    zum     Safraninstick-          stoff        (-16-Stellung),    wodurch die vorzügliche       Alkaliechtheit    der Färbungen bedingt wird.  



  Der neue Farbstoff ist ein     dunkelbron-          ziges    Pulver, -das in Wasser mit blauer Farbe,  in konzentrierter Schwefelsäure     grasgrün    lös  lich ist.    <I>Beispiel:</I>  400 Teile einer wässerigen Lösung, ent  haltend 31,5 Teile     (j/        Mol.)

      des     Monona-          triumsalzes    der     3-Diäthy        lisorosindulin-1.6.12..          trisulfosäure    und 20 Teile     Natriumacctat        kri-          stallisiert    werden zusammen mit einer Lö  sung von 11 Teilen     1-Amino-5-methyl-4-          monomethylanilin-2-sulfosäure    in 80 Teilen  Wasser und 3 Teilen Soda -so lange gekocht,  bis eine Probe, in konzentrierter Schwefel  säure gelöst, eine rein grüne Farbe zeigt.  Durch Zusatz von Kochsalz wird der Farb  stoff als     pulveriges    Pulver ausgeschieden.

   Er  färbt die animalische Faser in reinen,     licht-          und        alkaliechten    Blautönen. Seine Konsti  tution ist     folgyende:     
EMI0001.0040     




  Process for the preparation of a dye of the phenonaphtosafranine series. It has been found that a new, valuable dye is produced if 1-amino-5-methyl-4-monomethylaniline-2-sulfonic acid is mixed with 3-diethylisorosindulin-1.6.12-trisulfonic acid of the formula
EMI0001.0010
    condensed.

   The resulting phenonaphthosafranin trisulfonic acid contains a sulfo group in the ortho position to the safranin nitrogen (-16 position), which is the reason for the excellent alkali fastness of the dyeings.



  The new dye is a dark bronze powder that is soluble in water with a blue color, and in concentrated sulfuric acid, grass-green. <I> Example: </I> 400 parts of an aqueous solution, containing 31.5 parts (j / mol.)

      of the mononatrium salt of 3-diethy lisorosindulin-1.6.12 .. trisulfonic acid and 20 parts of sodium acetate are crystallized together with a solution of 11 parts of 1-amino-5-methyl-4-monomethylaniline-2-sulfonic acid in 80 parts Water and 3 parts of soda boiled until a sample, dissolved in concentrated sulfuric acid, shows a pure green color. By adding table salt, the dye is excreted as a powdery powder.

   It dyes the animal fibers in pure, light and alkaline blue tones. Its constitution is as follows:
EMI0001.0040

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass mau 1-Amino-5-methyl-4-monomethylanilin- 2-sulfosäure kondensiert mit 3-Diäthylisoro- sindulin-1 . 6. PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-5-methyl-4-monomethylaniline-2-sulfonic acid is condensed with 3-diethylisorosinulin-1. 6th 12-trisulfosäure der Formel EMI0002.0007 Die entstandene Phenonaphtosafranintrisulfo- säure enthält eine Sulfogruppe in Orthostel- lung zum Safraninstickstoff (-16-Stellung), wodurch die vorzügliche Alkaliechtheit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkelbronziges Pulver, das in Was ser mit blauer Farbe, in konzentrierter Schwefelsäure grasgrün löslich ist und Wolle aus saurem Bade licht- und alkaliecht blau färbt. 12-trisulfonic acid of the formula EMI0002.0007 The resulting phenonaphtosafranin trisulphonic acid contains a sulpho group in the ortho position to the safranin nitrogen (-16 position), which gives the dyeings their excellent alkali fastness. The new dye is a dark bronze powder that is soluble in water with a blue color, in concentrated sulfuric acid, grass-green and dyes wool from acidic baths that are light- and alkali-proof blue.
CH128155D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128155A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128155X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128155A true CH128155A (en) 1928-10-16

Family

ID=25710327

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128155D CH128155A (en) 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series.

Country Status (1)

Country Link
CH (1) CH128155A (en)

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