CH132503A - 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
CH132503A
CH132503A CH132503DA CH132503A CH 132503 A CH132503 A CH 132503A CH 132503D A CH132503D A CH 132503DA CH 132503 A CH132503 A CH 132503A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
series
phenonaphtosafranine
acid
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 CH132503A publication Critical patent/CH132503A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B17/00—Azine dyes
    • C09B17/04—Azine dyes of the naphthalene series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines     Farbstores    der     Phenonaphtosafraninreihe.       Es wurde gefunden, dass ein wertvoller  neuer Farbstoff entsteht, wenn man     1-Amino-          4-äthylbenzylanilin-2-sulfosäure    mit     3-Di-          methyl-11-methylisorosindulin-1,6-disulfosäure     der Formel  
EMI0001.0007     
    kondensiert.

   Die entstandene     Phenonaphto-          safranindisulfosäure    enthält eine     Sulfogruppe     in     Orthostellung    zum     Safraninstickstoff    (16  Stellung), wodurch die vorzügliche Alkali  echtheit der Färbungen bedingt wird.    Der neue     Farbstoff    ist ein dunkles Pulver,  das sich in Wasser mit blauer Farbe, in  konzentrierter Schwefelsäure grasgrün löst.

    <I>Beispiel:</I>  16 Teile     1-Amino-4-äthylbenzylanilin-2-          sulfosäure    werden mit 3 Teilen Soda in 100  Teilen Wasser siedend gelöst und 26,8 Teile       Mononatriumsalz    der     3-Dimethyl-11-methyl-          isorosindulin-1,6-disulfosäure,    sowie 20 Teile       Natriumacetat    kristallisiert in 200 Teilen  Wasser beigefügt. Man kocht solange unter       Rückfluss,    bis eine Probe, in konzentrierter  Schwefelsäure gelöst, eine neingrüne Farbe  zeigt. Man verdünnt auf 1400 Teile und  macht     sodaalkalisch.    Dann wird mit Salz  ausgeschieden und der Farbstoff getrocknet.

    Der     Farbstoff    färbt die animalische Faser  aus schwach saurem Bade licht-,     alkali-    und       walkecht    blau. Die Konstitution ist folgende:    
EMI0002.0001     




  Process for the representation of a color gate of the phenonaphtosafranin series. It has been found that a valuable new dye is produced if 1-amino-4-ethylbenzylaniline-2-sulfonic acid is mixed with 3-dimethyl-11-methylisorosindulin-1,6-disulfonic acid of the formula
EMI0001.0007
    condensed.

   The resulting phenonaphthosafranine disulphonic acid contains a sulpho group in the ortho position to the safranine nitrogen (16 position), which determines the excellent alkali fastness of the dyeings. The new dye is a dark powder that dissolves in water with a blue color, in concentrated sulfuric acid it is grass-green.

    <I> Example: </I> 16 parts of 1-amino-4-ethylbenzylaniline-2-sulfonic acid are dissolved with 3 parts of soda in 100 parts of boiling water and 26.8 parts of the monosodium salt of 3-dimethyl-11-methyl-isorosindulin- 1,6-disulfonic acid and 20 parts of sodium acetate crystallized in 200 parts of water were added. It is refluxed until a sample, dissolved in concentrated sulfuric acid, shows a green green color. It is diluted to 1400 parts and made alkaline with soda. Then it is excreted with salt and the dye is dried.

    The dye dyes the animal fibers from weakly acidic bath blue, fast to light, alkali and waterfast. The constitution is as follows:
EMI0002.0001

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4-äthylbenzylanilin-2-sulfosäure kon densiert mit 3-Dimethyl-11-methylisorosindu- lin-1,6-disulfosäure der Formel EMI0002.0006 Die entstandene Phenonaphtosafranindi- sulfosäure enthält eine Sulfbgruppe in Ortho- stellung zum Safraninstickstoff (16-Stellung), wodurch die vorzügliche Alkaliechtheit der Färbungen bedingt ist. PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1-amino-4-ethylbenzylaniline-2-sulfonic acid is condensed with 3-dimethyl-11-methylisorosindulin-1,6-disulfonic acid of the formula EMI0002.0006 The resulting phenonaphtosafranin disulfonic acid contains a sulfonic group ortho to the safranin nitrogen (16-position), which is the reason for the excellent alkali fastness of the dyeings. Der neue Farbstoff ist ein dunkles Pulver, das sich in Wasser mit blauer Farbe, in konzentrierter Schwefelsäure grasgrün löst. The new dye is a dark powder that dissolves in water with a blue color, in concentrated sulfuric acid it is grass-green.
CH132503D 1928-01-28 1928-01-28 Process for the preparation of a dye of the phenonaphtosafranine series. CH132503A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH132503T 1928-01-28
CH124764T 1928-01-28

Publications (1)

Publication Number Publication Date
CH132503A true CH132503A (en) 1929-04-15

Family

ID=25710307

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132503D CH132503A (en) 1928-01-28 1928-01-28 Process for the preparation of a dye of the phenonaphtosafranine series.

Country Status (1)

Country Link
CH (1) CH132503A (en)

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