CH128149A - 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
CH128149A
CH128149A CH128149DA CH128149A CH 128149 A CH128149 A CH 128149A CH 128149D A CH128149D A CH 128149DA CH 128149 A CH128149 A CH 128149A
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 CH128149A publication Critical patent/CH128149A/en

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Description

  

  Verfahren zur ]Darstellung eines     Farbstoffes    der     Pheiionaphtosafrauliireilie.       Es wurde gefunden,     dass    ein wertvoller,  neuer Farbstoff entsteht, wenn man     1-Ami-          no-4-dimethylanilin-2-suliosäure    mit     3-Di-          äthylisorosindulin-2.        6-disuliosäure    der For  mel  
EMI0001.0009     
    kondensiert.

   Die entstandene     Phenonaplito-          safranindisulioso,ure    enthält eine     Sulfo-          gruppe    in     Orthostellung    zum     Safraninstick-          stoff        (-16-Stellung),    wodurch die     vorzüglielte          Alkaliechtheit    der Färbungen bedingt wird.  



  Der neue Farbstoff ist ein dunkles     Pül-          ver,    löslich in Wasser mit blauer Farbe und  in konzentrierter Schwefelsäure grasgrün.         Beis.piel:     <B>11</B> Teile     1-Amino-4-dimetliylanilin-2-sul-          fosäure    werden mit     3.    Teilen Soda in<B>80</B>  Teilen Wasser gelöst und<B>27,5</B> Teile     Mono-          natriumsalz    der     3-Diäthylisorosindulin-2.6-          disulfosäure,    sowie 20 Teile     Natriumacetat     kristallisiert in     20Ü    Teilen Wasser beige  fügt.

   Es     muss    mehrere Stunden gekocht wer  den, bis eine gezogene Probe, in konzen  trierter Schwefelsäure gelöst, eine rein     grune     Farbe zeigt. Der Farbstoff wird     sodaalka-          liseli    ausgeschieden, und zwar durch Zu  gabe von Kochsalz. Er färbt die animalische  Faser aus saurem Bade licht- und     alkalieellt     blau. Seine Konstitution ist folgende:  
EMI0001.0037     




  Process for the preparation of a dye of the Pheiionaphtosafrauliireilie. It has been found that a valuable, new dye is produced when 1-amino-4-dimethylaniline-2-sulioic acid is mixed with 3-diethylisorosindulin-2. 6-disulioic acid of the formula
EMI0001.0009
    condensed.

   The phenonaplitosafranin disulioso, ure that is formed contains a sulfo group in the ortho position to the safranin nitrogen (-16 position), which gives the dyeings excellent alkali fastness.



  The new dye is a dark powder, soluble in water with a blue color and grass green in concentrated sulfuric acid. Example: <B> 11 </B> parts of 1-amino-4-dimethylaniline-2-sulphonic acid are dissolved in <B> 80 </B> parts of water with 3rd parts of soda and <B> 27, 5 parts of the monosodium salt of 3-diethylisorosindulin-2,6-disulfonic acid and 20 parts of sodium acetate crystallized in 20 parts of water are added.

   It has to be boiled for several hours until a sample taken, dissolved in concentrated sulfuric acid, turns a pure green color. The dye is excreted in soda alkali by adding table salt. It dyes the animal fibers from acidic baths light and alkaline blue. Its constitution is as follows:
EMI0001.0037

Claims (1)

PATENTANSPRUCII: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4-dimethylanilin-2-suliosäure kondensiert mit 3-Diäthylisorosindulin-2 .6- disulfosäure der Formel EMI0002.0008 Die entstandene plienonaplitosafranindl- sulfosäure enthält eine #Sulfogruppe in Ortho- stellung zum Safraninstickstoff (-16-Stel- <RTI PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-4-dimethylaniline-2-sulioic acid is condensed with 3-diethylisorosindulin-2 .6-disulphonic acid of the formula EMI0002.0008 The resulting plienonaplitosafranindl-sulfonic acid contains a #sulfo group ortho to the safranin nitrogen (-16-digit <RTI ID="0002.0016"> lung), wodurch die vorzügliche Alkaliecht- heit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkles Pulver, in Wasser mit blauer Farbe, in konzentrierter Schwefel säure grasgrün löslich, das Wolle aus saurem Bad licht- und alkaliecht blau färbt. ID = "0002.0016"> lung), which determines the excellent alkali fastness of the dyeings. The new dye is a dark powder, in water with a blue color, soluble in concentrated sulfuric acid grass-green, the wool from acid bath dyes light- and alkali-fast blue.
CH128149D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128149A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128149X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128149A true CH128149A (en) 1928-10-01

Family

ID=25710321

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128149D CH128149A (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) CH128149A (en)

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