CH128145A - 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
CH128145A
CH128145A CH128145DA CH128145A CH 128145 A CH128145 A CH 128145A CH 128145D A CH128145D A CH 128145DA CH 128145 A CH128145 A CH 128145A
Authority
CH
Switzerland
Prior art keywords
dye
phenonaphtosafranine
preparation
acid
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 CH128145A publication Critical patent/CH128145A/en

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Description

  

  Verfahren zur Darstellung eines Farbstoffes der     Phenonaphtosafraninreihe.       Es wurde gefunden, dass ein wertvoller,  neuer Farbstoff entsteht, wenn man     1-Amino-          4-diäthylanilin-2-sulfosäure    mit     3-Dimethyl-          isorosindulin-1.6-disulfosäure    der Formel:  
EMI0001.0006     
    kondensiert.

   Die     entstandene        Phenonaphto-          safranindisulfosäure    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 dunkles Pul  ver, das sich in Wasser mit blauer Farbe,  in konzentrierter Schwefelsäure grasgrün  löst.    <I>Beispiel</I>  12,5 Teile     1-Amino-4-diäthylanilin-2-          sulfosäure    werden mit 3 Teilen Soda in 80  Teilen Wasser gelöst und 26 Teile Mono  natriumsalz der     3-Dimethylisorosindulin-          1.6-disulfosäure,        sowie    20 Teile Natrium  azetat kristallisiert in 200 Teilen Wasser  beigefügt. Man kocht so lange     unter    Rück  fluss, bis eine gezogene Probe, in konzentrier  ter Schwefelsäure gelöst, eine rein grüne  Farbe zeigt. Man macht mit Soda alkalisch  und salzt den Farbstoff aus.

   Er lässt sich  als     bronziger    Harzkuchen ausscheiden. Die  animalische Faser wird in licht und     alkali-          echten    Blautönen gefärbt. Die     Konstitution     ist folgende:  
EMI0001.0027     




  Process for the preparation of a dye of the phenonaphtosafranine series. It has been found that a valuable, new dye is created if 1-amino-4-diethylaniline-2-sulfonic acid is mixed with 3-dimethyl isorosindulin-1,6-disulfonic acid of the formula:
EMI0001.0006
    condensed.

   The resulting phenonaphthosafranine disulphonic acid contains a sulpho group in the ortho position to the safranine nitrogen (-16-, position), which gives the dyeings excellent alkali fastness.



  The new dye is a dark powder that dissolves blue in water and grass green in concentrated sulfuric acid. <I> Example </I> 12.5 parts of 1-amino-4-diethylaniline-2-sulfonic acid are dissolved with 3 parts of soda in 80 parts of water and 26 parts of the monosodium salt of 3-dimethylisorosindulin-1,6-disulfonic acid, and 20 parts Sodium acetate crystallizes in 200 parts of water attached. It is boiled under reflux until a sample drawn, dissolved in concentrated sulfuric acid, shows a pure green color. You make alkaline with soda and salt out the dye.

   It can be excreted as a bronze resin cake. The animal fiber is dyed in light and alkaline blue tones. The constitution is as follows:
EMI0001.0027

Claims (1)

PATENTANSPRÜCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4-diäthylanilin-2-sulfosäure kondensiert mit 3-Dimethylisorosindulin- 1.6-disulfosäure der Formel: PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-4-diethylaniline-2-sulfonic acid is condensed with 3-dimethylisorosindulin-1,6-disulfonic acid of the formula: EMI0002.0006 Die entstandene Phenonaphtosafranindisulfo- säure enthält eine Sulfogruppe in Ortho- stellung zum Safraninstickstoff (-16-Stel- lung), wodurch die vorzügliche Alkaliecht- heit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkles Pulver, das sich in Wasser mit blauer Farbe, in konzentrierter Schwefelsäure . grasgrün löst und Wolle aus saurem Bad licht- und alkaliecht blau färbt. EMI0002.0006 The resulting phenonaphtosafranine disulphonic acid contains a sulpho group ortho to the safranine nitrogen (-16 position), which means that the dyeings are extremely alkaline. The new dye is a dark powder that turns blue in water, in concentrated sulfuric acid. grass green dissolves and dyes wool from acidic baths light and alkali-proof blue.
CH128145D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128145A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128145X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128145A true CH128145A (en) 1928-10-16

Family

ID=25710317

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128145D CH128145A (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) CH128145A (en)

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