CH128157A - 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
CH128157A
CH128157A CH128157DA CH128157A CH 128157 A CH128157 A CH 128157A CH 128157D A CH128157D A CH 128157DA CH 128157 A CH128157 A CH 128157A
Authority
CH
Switzerland
Prior art keywords
acid
dye
preparation
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 CH128157A publication Critical patent/CH128157A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines     Farbstoffes    der     Phenonaphtosafraninreihe.       Es     wurde    gefunden, dass     ein.    neuer, wert  voller Farbstoff entsteht,     wenn    man     1-          Amino-4-dimethylanilin-2-sulfosäure    mit 3  Diäthylisorosindulin - 1 . 6. 12 -     trisulfosäure     der Formel  
EMI0001.0009     
    kondensiert.

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



  Der neue Farbstoff ist ein     dunkelbron-          ziges    Pulver, das in Wasser reit blauer  Farbe, in     konzentrierter        Schwefelsäure,    gras  grün löslich ist.    <I>Beispiel:</I>  400 Teile einer wässerigen Lösung, ent  haltend 31,5 Teile     (1/2        Mol.)    des Mono  .

         natriumsalzes    der     3-Diäthylisorosindulin-          1.    6.     12-trisulfosäure    und 20 Teile Natrium  acetat kristallisiert, werden zusammen mit  einer Lösung von 12 Teilen     1-Amino-4-di-          methylanilin-2-sulfosäure        in    80 Teilen Was  ser und 3,1 Teilen Soda so lange gekocht,  bis eine Probe, in konzentrierter Schwefel  säure gelöst, eine rein     grüne    Farbe zeigt.  Auf Zusatz von     etwas    Soda und Kochsalz  fällt der Farbstoff als     kupferiges    Pulver  aus.

   Er färbt Wolle aus saurem Bade     alkali-          und    lichtecht     reinblau.    Seine Konstitution  ist folgende:  
EMI0001.0038     




  Process for the preparation of a dye of the phenonaphtosafranine series. It was found that a. new, valuable dye is created if 1-amino-4-dimethylaniline-2-sulfonic acid is mixed with 3-diethylisorosindulin - 1. 6. 12 - trisulfonic acid of the formula
EMI0001.0009
    condensed.

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



  The new dye is a dark bronze powder that is blue in water and soluble in concentrated sulfuric acid, grass green. <I> Example: </I> 400 parts of an aqueous solution containing 31.5 parts (1/2 mol.) Of the mono.

         sodium salt of 3-diethylisorosindulin- 1. 6. 12-trisulfonic acid and 20 parts of sodium acetate crystallized, together with a solution of 12 parts of 1-amino-4-dimethylaniline-2-sulfonic acid in 80 parts of water and 3.1 Divide boiled soda until a sample, dissolved in concentrated sulfuric acid, shows a pure green color. When a little soda and table salt are added, the dye precipitates as a coppery powder.

   It dyes wool from acidic baths, alkali-proof and light-fast, pure blue. Its constitution is as follows:
EMI0001.0038

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4-dimethylanilin-2-sulfosäure kondensiert mit 3 - Diäthylisorosindulin- 1. 6. PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-4-dimethylaniline-2-sulfonic acid is condensed with 3-diethylisorosindulin- 1. 6. 12-trisulfosäure der Formel EMI0002.0007 Die entstandene Phenonaphtosafranintrisulfo- säure enthält eine Sulfogruppe in Ortho- stellung zum Safraninstickstoff (-16-Stel- lung), wodurch die vorzügliche Alkaliecht- heit der Färbungen bedingt wird. 12-trisulfonic acid of the formula EMI0002.0007 The resulting phenonaphtosafranin trisulphonic acid contains a sulpho group ortho to the safranine nitrogen (-16 position), which means that the dyeings are extremely alkaline. 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- kaliecht blau färbt. The new dye is a dark bronze powder, which is soluble in water with a blue color, in concentrated sulfuric acid, grass-green and dyes wool from acid baths with a light and alkali-like blue color.
CH128157D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128157A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128157X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128157A true CH128157A (en) 1928-10-16

Family

ID=25710329

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128157D CH128157A (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) CH128157A (en)

Similar Documents

Publication Publication Date Title
CH128157A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128158A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128156A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128164A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128162A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128155A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128159A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128163A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128160A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128161A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128165A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128166A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128167A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128168A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128169A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128154A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128148A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128150A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH140419A (en) Process for the preparation of a vat dye of the anthanthrone series.
CH128143A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128149A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128152A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128151A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128145A (en) Process for the preparation of a dye of the phenonaphtosafranine series.
CH128170A (en) Process for the preparation of a dye of the phenonaphtosafranine series.