CH146759A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH146759A
CH146759A CH146759DA CH146759A CH 146759 A CH146759 A CH 146759A CH 146759D A CH146759D A CH 146759DA CH 146759 A CH146759 A CH 146759A
Authority
CH
Switzerland
Prior art keywords
diazotized
mol
acid
dye
disulfo
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH146759A publication Critical patent/CH146759A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/12—Disazo dyes in which the coupling component is a heterocyclic compound
    • 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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/28—Disazo or polyazo compounds containing copper

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 136650.    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen  neuen Farbstoff erhält, wenn man auf       1.    Hol des     5,5'-Dioxy-7,7'-disulfo-1,1',2.',2-          dinaphthazins    der Formel:

    
EMI0001.0006     
    das durch saure Kupplung von     diazotier-          ter        Sulfanilsäure    mit     5,5'-Dioxy-7,7'-di-          sulfo-2,2'-dinaphthylamin    und     Erwärmen     des gebildeten Reaktionsproduktes erhalten  werden kann, 1 Hol     diazotierte        6-Nitro-2-          amino-l-phenol-4-sulfosäure,    hierauf 1 Hol       diazotierte        1-Aminonaphthalin-4-sulfosäure     einwirken lässt und den erhaltenen Farb  stoff mit einem kupferabgebenden     Mittel     behandelt.

      Der erhaltene Farbstoff ist ein     dunkel-          bronziges    Pulver, das sich in Wasser mit  roter, in verdünnten Alkalien mit blauer  und in     konz.    Schwefelsäure mit grüner  Farbe löst. Er färbt natürliche     Seide.     Baumwolle und Kunstseiden aus regenerier  ter Zellulose aus neutralem oder schwach  alkalischem Bade in sehr echten, grauen  Tönen.  



  <I>Beispiel:</I>  47, 2 Teile     5,5'-Dioxy-7,7'-disulfo-1,1',2',2-          dinaphthazin    und 50 Teile Soda werden in  500 Teilen Wasser gelöst und mit Eis auf  0 bis 5   gekühlt. Darauf kuppelt man vor  erst mit dem     Diazokörper    aus 23,4 Teilen       6-Nitro-2-amino-l-phenol-4-sulfosäure    und,  nachdem dieser verschwunden ist, mit dem       Diazokörper    aus 22,5 Teilen     1.-Aminonaph-          thalin-4-sulfosäure.    Nach beendeter Kupp  lung wird der Farbstoff mit Kochsalz ab  geschieden und filtriert.

   Man löst ihn in  <B>800</B> Teilen heissem Wasser und erwärmt      einige Zeit zusammen mit einer wässerigen  Lösung aus 24 Teilen     krist.    Kupfersulfat.



      Additional patent to main patent no. 136650. Process for the production of a new azo dye. It has been found that a new dye is obtained if one takes on 1. Hol of 5,5'-dioxy-7,7'-disulfo-1,1 ', 2.', 2-dinaphthazine of the formula:

    
EMI0001.0006
    which can be obtained by acidic coupling of diazotized sulfanilic acid with 5,5'-dioxy-7,7'-disulfo-2,2'-dinaphthylamine and heating the reaction product formed, 1 Hol diazotized 6-nitro-2- amino-l-phenol-4-sulfonic acid, then 1 Hol diazotized 1-aminonaphthalene-4-sulfonic acid can act and the dye obtained is treated with a copper donor.

      The dye obtained is a dark bronze powder, which dissolves in water with red, in dilute alkalis with blue and in conc. Dissolves sulfuric acid with a green color. He dyes natural silk. Cotton and rayon made from regenerated cellulose from a neutral or slightly alkaline bath in very real, gray tones.



  <I> Example: </I> 47.2 parts of 5,5'-dioxy-7,7'-disulfo-1,1 ', 2', 2-dinaphthazine and 50 parts of soda are dissolved in 500 parts of water and mixed with Ice chilled to 0-5. Then you first couple with the diazo body from 23.4 parts of 6-nitro-2-amino-1-phenol-4-sulfonic acid and, after this has disappeared, with the diazo body from 22.5 parts of 1.-aminonaphthalene- 4-sulfonic acid. After coupling has ended, the dye is separated off with common salt and filtered.

   It is dissolved in <B> 800 </B> parts of hot water and heated for some time together with an aqueous solution of 24 parts of crystalline. Copper sulfate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man auf 1 Mol des 5,5'-Dioxy-7,7'- disulfo-1,1',2',2-dinaphthazins der Formel: PATENT CLAIM: Process for the preparation of a new azo dye, characterized in that 1 mol of 5,5'-dioxy-7,7'-disulfo-1,1 ', 2', 2-dinaphthazine of the formula: EMI0002.0006 das durch saure Kupplung von diazotier- ter Sulfanilsäure mit 5,5'-Dioxy-7,7'-di- sulfo-2,2'-dinaphthylamin und Erwärmen des gebildeten Reaktionsproduktes erhalten werden kann, 1 Mol diazotierte 6-Nitro-2- amino-l-phenol-4-sulfosäure, hierauf 1 Mol diazotierte 1-Aminonaphthalin-4-sulfosäure einwirken lässt und den erhaltenen Farb stoff mit. EMI0002.0006 which can be obtained by acid coupling of diazotized sulfanilic acid with 5,5'-dioxy-7,7'-disulfo-2,2'-dinaphthylamine and heating of the reaction product formed, 1 mol of diazotized 6-nitro-2- amino-l-phenol-4-sulfonic acid, then 1 mol of diazotized 1-aminonaphthalene-4-sulfonic acid can act and the dye obtained with. einem kupferabgebenden Mittel behandelt. Der erhaltene Farbstoff ist ein dunkel- bronziges Pulver, das sich in Wasser mit roter, in verdünnten Alkalien mit blauer und in konz. Schwefelsäure mit grüner Farbe löst. Er färbt natürliche Seide, Baumwolle und Kunstseiden aus regenerier ter Zellulose aus neutralem oder schwach alkalischem Bade in sehr echten, grauen Tönen. treated with a copper-releasing agent. The dye obtained is a dark bronze powder, which dissolves in water with red, in dilute alkalis with blue and in conc. Dissolves sulfuric acid with a green color. It dyes natural silk, cotton and artificial silk made from regenerated cellulose from neutral or weakly alkaline baths in very real, gray tones.
CH146759D 1929-06-12 1929-06-12 Process for the production of a new azo dye. CH146759A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH146759T 1929-06-12
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH146759A true CH146759A (en) 1931-04-30

Family

ID=25712797

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146759D CH146759A (en) 1929-06-12 1929-06-12 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH146759A (en)

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