CH128139A - 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
CH128139A
CH128139A CH128139DA CH128139A CH 128139 A CH128139 A CH 128139A CH 128139D A CH128139D A CH 128139DA CH 128139 A CH128139 A CH 128139A
Authority
CH
Switzerland
Prior art keywords
phenonaphtosafranine
dye
acid
preparation
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 CH128139A publication Critical patent/CH128139A/en

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  • Coloring (AREA)

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-Diäthyli-          sorosindulin-1.6-disulfosäure    der Formel  
EMI0001.0007     
    kondensiert.

   Die entstandene     Phenonaphto-          safraniiidisulfosäure    enthält eine     Sulfogruppe     in     Orthostellung    zum     Safraninstickstoff        (-16-          Stellung),    wodurch die vorzügliche     Alkali-          eehtheit    der Färbungen bedingt wird.  



  Der neue Farbstoff bildet ein     bronzieren-          des    Pulver, das in Wasser mit blauer Farbe,  in konzentrierter Schwefelsäure grasgrün lös  lich ist.    <I>Beispiel:</I>  12,5 Teile     1-Amino-4-diäthylanilin-2-          sulfosäure    werden mit 3,1 Teilen Soda in 80  Teilen Wasser siedend gelöst und 27,5 Teile       Mononatriumsalz    der     3-Diäthylisorosindulin-          1.6-disulfosäure,    sowie 20 Teile     Natrium-          acetat    kristallisiert in 200 Teilen Wasser  beigefügt.

   Dann wird während 12 Stunden  unter     Rückfluss    gekocht, worauf eine Probe,  in konzentrierter Schwefelsäure gelöst, eine  rein grüne Farbe zeigt. Der Farbstoff fällt  durch Zusatz von Kochsalz aus der heissen  Lösung als harziger Kuchen aus. Er färbt  in     saurem    Bade auf Wolle und Seide ein ru  higes,     alkali-    und lichtechtes Blau. Der Farb  stoff entspricht der     Konstitution:     
EMI0001.0030     




  Process for the preparation of a dye of the phenonaphtosafranine series. It has been found that a valuable, new dye is produced when 1-amino-4-diethylaniline-2-sulfonic acid is mixed with 3-diethyl sorosindulin-1,6-disulfonic acid of the formula
EMI0001.0007
    condensed.

   The phenonaphthosafraniiidisulphonic acid formed contains a sulpho group in the ortho position to the safranine nitrogen (-16 position), which means that the dyeings are extremely alkaline.



  The new dye forms a bronzing powder that is 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 3.1 parts of soda in 80 parts of boiling water and 27.5 parts of the monosodium salt of 3-diethylisorosindulin-1.6- disulfonic acid and 20 parts of sodium acetate crystallized in 200 parts of water were added.

   It is then refluxed for 12 hours, whereupon a sample, dissolved in concentrated sulfuric acid, shows a pure green color. The dye precipitates out of the hot solution as a resinous cake by adding common salt. In an acid bath, it dyes wool and silk a calm, alkali and lightfast blue. The dye corresponds to the constitution:
EMI0001.0030

Claims (1)

PATENTANSPUTTCI3: Verfahren zur Darstellung eines neuer Farbstoffes, dadurch gekennzeichnet, dal3 man 1-Amino--l-diäthylanilin-9-sulfosäure kondensiert mit 3-Diäthylisorosindulin-1.6- disulfosäure der Formel: PATENTANSPUTTCI3: Process for the preparation of a new dye, characterized in that 1-amino-l-diethylaniline-9-sulfonic acid is condensed with 3-diethylisorosindulin-1,6-disulfonic acid of the formula: EMI0002.0006 Die entstandene Phenonaphtosafranindisulfo- sä ure enthält eine Sulfogruppe in Orthostel- lung zum Safraninstickstoff (-16-Stellung), wodurch die vorzügliche Alkaliechtheit der Färbungen bedingt wird. Der neue Farbstoff bildet ein bronzierendes Pulver, das in Wasser mit blauer Farbe, in konzentrierter Schwefel säure grasgrün löslich ist und Wolle aus saurem Bade leicht- und alkaliecht blau färbt. EMI0002.0006 The resulting phenonaphtosafranine disulphonic acid contains a sulpho group in the ortho position to the safranine nitrogen (-16 position), which means that the dyeings are extremely fast to alkali. The new dye forms a bronzing powder, which is soluble in water with a blue color, in concentrated sulfuric acid, grass-green, and which dyes wool from acidic baths slightly and alkaline blue.
CH128139D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128139A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128139X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128139A true CH128139A (en) 1928-10-16

Family

ID=25710311

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128139D CH128139A (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) CH128139A (en)

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