CH128161A - 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
CH128161A
CH128161A CH128161DA CH128161A CH 128161 A CH128161 A CH 128161A CH 128161D A CH128161D A CH 128161DA CH 128161 A CH128161 A CH 128161A
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 CH128161A publication Critical patent/CH128161A/en

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Description

  

      Verfahren    zur Darstellung eines Farbstoffes der     Plienonaphtosafraninreihe.       Es wurde gefunden, dass ein neuer wert  voller     Farbstoff    entsteht, wenn man     1-Amino-          5-methyl-4-monoäthylanilin-2-sulfosäure    mit       3-Diäthyl-13-methylisorosindnlin-1        #    6 .     12-tri-          sulfosäure    der Formel  
EMI0001.0010     
    kondensiert.

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



  Der neue Farbstoff ist ein dunkles Pul  ver, das in Wasser mit blauer Farbe, in       konzentrierter    Schwefelsäure grasgrün. lös  lich ist.    <I>Beispiel:</I>  400 Teile einer wässerigen Lösung, ent  haltend 33 Teile     ('/E    Molekül) des Mono  natriumsalzes der     3-Diätliyl-13-methylisoros-          indulin-1.6.12-trisulfosäure    und 20 Teile       Natriumacetat    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.

   Der Farbstoff fällt auf     Koehsalzzusatz     als     kupferiges        Pulver    aus. Er färbt die ani  inalische Faser aus saurem Bade licht- und       alkaliecht    blau. Seine Konstitution ist fol  gende:  
EMI0001.0031     




      Process for the preparation of a dye of the plienonaphtosafranine series. It has been found that a new valuable dye is created if 1-amino-5-methyl-4-monoethylaniline-2-sulfonic acid is mixed with 3-diethyl-13-methylisorosindnlin-1 # 6. 12-trisulfonic acid of the formula
EMI0001.0010
    condensed.

   The resulting phenonaphthosafranin trisulphonic acid contains a sulpho group in the ortho position to the safranina nitrogen (-16 position), which means that the dyeings are extremely fast to alkali.



  The new dye is a dark powder that turns blue in water and grass green in concentrated sulfuric acid. is soluble. <I> Example: </I> 400 parts of an aqueous solution containing 33 parts (1 / E molecule) of the monosodium salt of 3-diethyl-13-methylisoros-indulin-1.6.12-trisulfonic acid and 20 parts of sodium acetate are crystallized boiled 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 until a sample, dissolved in concentrated sulfuric acid, shows a pure green color.

   The dye precipitates as a coppery powder on the addition of coal salt. It dyes the anal fibers from acidic bath light and alkali-like blue. Its constitution is as follows:
EMI0001.0031

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, daB man 1-Amino-ä-methyl-4-monoäthylariilin- 2-sulfosäure kondensiert mit 3-Diäthyl-13- methylisorosindulin-1 # 6 - 12-ti#isulfosäure der Formel EMI0002.0008 Die entstandene Phenonaphtosafranintrisulfo- aäure enthält eine Sulfogruppe in Ortho- stellung zum Safraninstiekstoff PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-α-methyl-4-monoäthylariilin-2-sulfonic acid is condensed with 3-diethyl-13-methylisorosindulin-1 # 6-12-thi # isulfonic acid of the formula EMI0002.0008 The resulting phenonaphtosafranin trisulfoic acid contains a sulfo group ortho to the saffron substance (-16-Stel- lung), wodurch die vorzügliche Alkaliecht- heit der Färbungen bedingt wird. Der neue Farbstoff ist ein dunkles Pulver, das in Wasser mit blauer Farbe, in konzentrierter Schwefelsäure grasgrün löslich ist und Wolle aus saurem Bad licht- und alkaliecht blau färbt. (-16 position), which is the reason for the excellent alkali fastness of the dyeings. The new dye is a dark powder, which is soluble in water with a blue color, in concentrated sulfuric acid grass-green and dyes wool from an acid bath light and alkali-fast blue.
CH128161D 1926-02-13 1927-02-08 Process for the preparation of a dye of the phenonaphtosafranine series. CH128161A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE128161X 1926-02-13
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH128161A true CH128161A (en) 1928-10-16

Family

ID=25710333

Family Applications (1)

Application Number Title Priority Date Filing Date
CH128161D CH128161A (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) CH128161A (en)

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