CH128160A - Process for the preparation of a dye of the phenonaphtosafranine series. - Google Patents

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

Info

Publication number
CH128160A
CH128160A CH128160DA CH128160A CH 128160 A CH128160 A CH 128160A CH 128160D A CH128160D A CH 128160DA CH 128160 A CH128160 A CH 128160A
Authority
CH
Switzerland
Prior art keywords
dye
acid
preparation
series
phenonaphtosafranine
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 CH128160A publication Critical patent/CH128160A/en

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Coloring (AREA)

Description

  

      Verfahren    zur Darstellung     eines    Farbstoffes der     Phenonaphtosa.franinreihe.       Es wurde gefunden,     daB    ein neuer, wert  voller Farbstoff entsteht, wenn man 1       Amino-5-methyl-4-monomethylanilin-2-sulfo-          säure    mit     3-Diäthylisorosindulin-1.6.13-          trisulfosäure    der Formel  
EMI0001.0009     
    kondensiert.

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



  Der neue Farbstoff ist ein     dunkelbron-          ziges    Pulver, das in Wasser mit blauer Farbe,  in konzentrierter Schwefelsäure grasgrün  löslich ist.    <I>Beispiel:</I>  400 Teile einer wässerigen Lösung, ent  haltend 81,5 Teile     (i/2        Mol.)    des     Möno-          natriumsalzes    der     3-Diäthylisorosindulin-          1    . 6.     13-trisulfosäure    und 20 Teile Natrium  azetat kristallisiert werden zusammen:

   mit  einer Lösung von 11 Teilen     1-Amino-5-me-          thyl-4-monomethylanilin-2-sulfosäure    in 80  Teilen Wasser und 3 Teilen Soda so lange  gekocht, bis eine Probe, in konzentrierter  Schwefelsäure gelöst, eine rein grüne Farbe  zeigt. Auf Zusatz von Kochsalz fällt der  Farbstoff als     kupferiges    Pulver aus. Er  färbt die animalische Faser aus saurem Bade  licht- und     alkaliecht    neinblau. Seine Konsti  tution ist folgende:  
EMI0001.0032     




      Process for the preparation of a dye of the Phenonaphtosa.franin 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-1.6.13-trisulfonic acid of the formula
EMI0001.0009
    condensed.

   The resulting phenonaphthosafranin trisulphonic acid contains a sulpho group in the ortho position to the safranine nitrogen (-16 position), which means that the dyeings are particularly fast to alkali.



  The new dye is a dark bronze powder that is soluble in water with a blue color, and in concentrated sulfuric acid it is grass-green. <I> Example: </I> 400 parts of an aqueous solution, containing 81.5 parts (1/2 mol.) Of the monosodium salt of 3-diethylisorosindulin-1. 6. 13-trisulfonic acid and 20 parts of sodium acetate are crystallized together:

   boiled with a solution of 11 parts of 1-amino-5-methyl-4-monomethylaniline-2-sulfonic acid in 80 parts of water and 3 parts of soda until a sample, dissolved in concentrated sulfuric acid, shows a pure green color. Upon addition of table salt, the dye precipitates as a coppery powder. It dyes the animal fibers from acidic baths light blue and alkaline blue. Its constitution is as follows:
EMI0001.0032

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, daP man 1-Amino-5-methyl-4-monomethylanilin- 2-sulfosäure kondensiert mit 3-Diäthylisoros- indulin-1.6.13-trisulfosäure der Formel EMI0002.0007 Die entstandenePhenonaphtosafranintrisulfo- säure enthält eine Sulfogruppe in Ortho- stellung zum Safraninstickstoff (-16-Stel- lung), 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-diethylisorosindulin-1.6.13-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), wodurch die vorzügliche Alkaliecht- heit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkelbronziges Pulver, das in Wasser mit blauer Farbe, in konzen trierter Schwefelsäure grasgrün löslich ist und Wolle aus saurem Bade licht- und al- lmliecht blau, färbt. whereby the excellent alkali fastness of the dyeings is caused. The new dye is a dark bronze powder, which is soluble in water with a blue color, in concentrated sulfuric acid, grass-green and colors wool from acidic baths light- and alright blue.
CH128160D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128160X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128160A true CH128160A (en) 1928-10-16

Family

ID=25710332

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128160D CH128160A (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) CH128160A (en)

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