CH128156A - 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
CH128156A
CH128156A CH128156DA CH128156A CH 128156 A CH128156 A CH 128156A CH 128156D A CH128156D A CH 128156DA CH 128156 A CH128156 A CH 128156A
Authority
CH
Switzerland
Prior art keywords
acid
dye
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 CH128156A publication Critical patent/CH128156A/en

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

Description

  

  Verfahren zur Darstellung eines Farbstoffes der     Phenonaphtosafrauinreihe.       Es     wurde    gefunden, dass     ein    neuer, wert  voller Farbstoff entsteht, wenn man     1-Amino-          ._")-methyl-4-monoäthylanilin-2-sulfosäure    mit       3-Diäthylisorosindulin-1   <B>.6.</B> 12     -trisulf        osäure     der Formel  
EMI0001.0009     
    kondensiert.

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



  Der neue Farbstoff ist ein     dunkelbron-          ziges    Pulver, das in Wasser mit blauer  Farbe, in konzentrierter Schwefelsäure gras  grün löslich ist.         Beispiel:     400 Teile einer wässerigen     Lösung,    ent  haltend 31,5 Teile (1/     Mol.)    des     Mono-          natriumsaIzes    der     3-Diäthylisorosindulin-          1.    6.

       12-trisulfosäure    und 20 Teile Natrium  azetat kristallisiert werden zusammen mit  einer     Lösung    von 12 Teilen     1-Amino-5-          methyl-    4     -monoäthylanilin-    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. Durch Zusatz von Kochsalz wird der  Farbstoff als     kupferiges    Pulver ausgeschie  den.

   Er     färbt    die animalische Faser     in:     reinen, licht- und     alkaliechten    Blautönen.  Seine Konstitution ist folgende:  
EMI0001.0041     




  Process for the preparation of a dye of the phenonaphtosa female series. It has been found that a new, valuable dye is created if 1-amino- ._ ") - methyl-4-monoethylaniline-2-sulfonic acid is mixed with 3-diethylisorosindulin-1 <B> .6. </B> 12 -trisulfonic acid of the formula
EMI0001.0009
    condensed.

   The phenonaphthosafranin trisulphonic acid formed contains a sulpho group in the ortho position to the safranine nitrogen (-16 position), which causes the excellent alkali fastness of the colorations.



  The new dye is a dark bronze powder that is soluble in blue water in water and grass green in concentrated sulfuric acid. Example: 400 parts of an aqueous solution containing 31.5 parts (1 / mol.) Of the monosodium salt of 3-diethylisorosindulin-1 6.

       12-trisulfonic acid and 20 parts of sodium acetate are crystallized together with a solution of 12 parts of 1-amino-5-methyl-4-monoethylaniline-2-sulfonic acid in 80 parts of water and 3 parts of soda boiled until a sample is concentrated Dissolved sulfuric acid, showing a pure green color. By adding table salt, the dye is excreted as a coppery powder.

   He dyes the animal fibers in: pure, light and alkaline blue tones. Its constitution is as follows:
EMI0001.0041

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, daB man 1-Amino-5-methyl-4-monoäthylanilin-2- suUosäure kondensiert mit 3-Diäthylisorosin- dulin-1.6.12-trisulfosäure der Formel EMI0002.0006 Die entstandene Phenonaphtosafranintri- sulfosäure 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-monoethylaniline-2-sulfonic acid is condensed with 3-diethylisorosindulin-1.6.12-trisulfonic acid of the formula EMI0002.0006 The resulting phenonaphtosafranin trisulfonic acid contains a sulfo group ortho to the safranin nitrogen (-16 position), wodurch die vorzügliche Alkali echtheit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkelbronziges Pul ver, das in Wasser mit blauer Farbe, in kon zentrierter Schwefelsäure grasgrün löslich ist und Wolle aus saurem Bade licht- und alkaliecht blau färbt. which determines the excellent alkali fastness of the dyeings. The new dye is a dark bronze powder that is green in water and soluble in concentrated sulfuric acid, and it dyes wool from acid baths that are light- and alkali-proof blue.
CH128156D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128156A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128156X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128156A true CH128156A (en) 1928-10-16

Family

ID=25710328

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128156D CH128156A (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) CH128156A (en)

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