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CH138233A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH138233A
CH138233A CH138233DA CH138233A CH 138233 A CH138233 A CH 138233A CH 138233D A CH138233D A CH 138233DA CH 138233 A CH138233 A CH 138233A
Authority
CH
Switzerland
Prior art keywords
new
black color
production
chromium
dye
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 CH138233A publication Critical patent/CH138233A/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
    • C09B45/26—Disazo or polyazo compounds containing chromium

Landscapes

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

Description

  

      Verfahren    zur Herstellung eines neuen     Azofarbstof%s.       Es     wurde    gefunden, dass man einen neuen  Farbstoff     erhält,    wenn man 1     Mol    des     5,5'-          Dioxy-7,7'-disulfo-1,2,2',1'-diriaphthaziris    mit  2     Mol    dianotierter     4-Niti@o-2-amino-l-phenol-          6-sulfosäure    kombiniert und den erhaltenen       Farbstoff    mit chromabgebenden Mitteln be  handelt.  



  Der neue chromhaltige     Farbstoff    ist trocken  ein dunkles Pulver, welches sich in Wasser  und in verdünnten Alkalien mit grünschwarzer  und in konzentrierter Schwefelsäure mit braun  schwarzer Farbe löst. Baumwolle und Vis  kose werden aus alkalischem     Glaubersalzbade,     Wolle und Seide aus saurem Bade, in olive  grünen Tönen angefärbt.    <I>Beispiel:</I>  90 Teile des     Disazofarbstoffes    aus dem 5,5'  Dioxy-7,7'-disulfo-1,2,2',1'-diriaphthazin und       4-Niti-o-2-amino-l-phenol-6-sulfosäure    werden  in 3500 Teilen Wasser gelöst und mit der       Fluorchromlösung    aus 30 Teilen     Cr"-,O9    ver-    setzt und 16 Stunden zum Sieden erhitzt.

    Durch Einengen und Salzen kann die neue  Chromverbindung abgeschieden werden.



      Process for the preparation of a new azo dye% s. It has been found that a new dye is obtained if 1 mole of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-diriaphthaziris is mixed with 2 moles of dianotized 4-Niti @ o -2-amino-1-phenol-6-sulfonic acid combined and the dye obtained with chromium donating agents be treated.



  The new chromium-containing dye is a dry, dark powder that dissolves in water and in dilute alkalis with a greenish-black color and in concentrated sulfuric acid with a brownish-black color. Cotton and viscose are dyed from alkaline Glauber's salt bath, wool and silk from acid bath, in olive green tones. <I> Example: </I> 90 parts of the disazo dye from the 5,5 'dioxy-7,7'-disulfo-1,2,2', 1'-diriaphthazine and 4-niti-o-2-amino- 1-phenol-6-sulfonic acid is dissolved in 3500 parts of water, the fluorochrome solution of 30 parts of Cr "-, O9 is added and the mixture is heated to the boil for 16 hours.

    The new chromium compound can be separated out by concentrating and salting.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbatoffes, dadurch gekennzeichnet, dass man 1 Mol des 5,5'-Dioxy-7,7'-disrilfo-1,2,2',1'- dinaphthazins mit 2 Mol dianotierter 4-Nitro- 2-amino-l-phenol-6-sulfosäure kombiniert und den erhaltenen Farbstoff mit chromabgeben den Mitteln behandelt. Der neue chromhaltige Farbstoff ist trocken ein dunkles Pulver, welches sich in Wasser und in verdünnten Alkalien mit grünschwarzer und in konzentrierter Schwefelsäure mit braun schwarzer Farbe löst. PATENT CLAIM: A process for the preparation of a new azo carbate, characterized in that 1 mol of 5,5'-dioxy-7,7'-disrilfo-1,2,2 ', 1'-dinaphthazine is mixed with 2 mol of dianotized 4-nitro Combined 2-amino-l-phenol-6-sulfonic acid and treated the dye obtained with chromium donating agents. The new chromium-containing dye is a dry, dark powder that dissolves in water and in dilute alkalis with a greenish-black color and in concentrated sulfuric acid with a brownish-black color. Baumwolle und Vis kose werden aus alkalischem Glaubersalzbade, Wolle und Seide aus saurem Bade, in olive grünen Tönen angefärbt. Cotton and viscose are dyed from alkaline Glauber's salt bath, wool and silk from acid bath, in olive green tones.
CH138233D 1928-09-08 1928-09-08 Process for the production of a new azo dye. CH138233A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH138233T 1928-09-08
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH138233A true CH138233A (en) 1930-02-15

Family

ID=25712787

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138233D CH138233A (en) 1928-09-08 1928-09-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH138233A (en)

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