CH138232A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH138232A
CH138232A CH138232DA CH138232A CH 138232 A CH138232 A CH 138232A CH 138232D A CH138232D A CH 138232DA CH 138232 A CH138232 A CH 138232A
Authority
CH
Switzerland
Prior art keywords
dye
azo dye
new
copper
production
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 CH138232A publication Critical patent/CH138232A/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

  

  Verfahren zur Herstellung eines neuen     Azofarbstofes.       Es wurde gefunden, dass man einen  neuen     Farbstoff    erhält, wenn man 1 Hol des       5,5'-Dioxy-7,7'-disulfo-1,2,2',1'    -     dinaphthazins     mit 2     Mol        diazotierter        4-Nitro-2-amino-l-          phenol-6-sulfosäure    kombiniert und den erhal  tenen Farbstoff mit kupferabgebenden Mit  teln behandelt.  



  Der neue kupferhaltige Farbstoff' ist  trocken ein grauschwarzes Pulver, welches  sich in Wasser und in verdünnten Alkalien  mit dunkelgrünblauer und in konzentrierter  Schwefelsäure mit schwärzlicher Farbe löst.  Baumwolle wird aus     sodaalkalischem    Bade  in echten grüngrauen Tönen angefärbt.  



  <I>Beispiel:</I>  Man kombiniert in Gegenwart von Soda  47,2 Teile     5,5'-Dioxy-7,7'disulfo-1,2,2',1'-di-          riaphthazin    mit dem     Diazokörper    aus 44  Teilen     4-Nitro-2-amino-l-phenol-6-sulfosäure     und salzt nach beendeter Kupplung aus.  



  90 Teile dieses     Diazofarbstoffes    werden  in 3000 Teilen heissem Wasser gelöst und    mit der gesättigten Lösung von 50 Teilen  kristallisiertem Kupfersulfat versetzt, worauf  sich sofort die Kupferverbindung bildet. Der  Farblack wird durch Kochsalz aus der Lö  sung abgeschieden und getrocknet.



  Process for the preparation of a new azo dye. It has been found that a new dye is obtained if 1 pint of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazine is mixed with 2 moles of diazotized 4-nitro-2 -amino-1-phenol-6-sulfonic acid combined and treated the obtained dye with copper-releasing agents.



  The new copper-containing dye is a dry gray-black powder which dissolves in water and in dilute alkalis with a dark green-blue color and in concentrated sulfuric acid with a blackish color. Cotton is dyed from a soda-alkaline bath in real green-gray tones.



  <I> Example: </I> 47.2 parts of 5,5'-dioxy-7,7'disulfo-1,2,2 ', 1'-diaphthazine are combined with the diazo body from 44 in the presence of soda Share 4-nitro-2-amino-1-phenol-6-sulfonic acid and salt out after the coupling has ended.



  90 parts of this diazo dye are dissolved in 3000 parts of hot water and mixed with the saturated solution of 50 parts of crystallized copper sulfate, whereupon the copper compound is formed immediately. The color varnish is separated from the solution using table salt and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man 1 Mol des 5,5'-Dioxy-7.7'disulfo-1,2,2', 1'-dinaphthazins mit 2 Mol diazotierter 4- Nitro-2-amino-1- phenol - 6 - sulfosäure kombi niert und den erhaltenen Farbstoff mit kup ferabgebenden Mitteln behandelt. Claim: Process for the preparation of a new azo dye, characterized in that 1 mol of 5,5'-dioxy-7.7'disulfo-1,2,2 ', 1'-dinaphthazine is mixed with 2 mol of diazotized 4-nitro-2-amino -1-phenol-6-sulfonic acid combined and treated the dye obtained with copper-releasing agents. Der neue kupferhaltige Farbstoff ist trocken ein grauschwarzes Pulver, welches sich in Wasser und in verdünnten Alkalien mit dunkelgrünblauer und in konzentrierter Schwefelsäure mit schwärzlicher Farbe löst. Baumwolle wird aus sodaalkalischem Bade in echten grüngrauen Tönen angefärbt. The new copper-containing dye is a dry gray-black powder that dissolves in water and in dilute alkalis with a dark green-blue color and in concentrated sulfuric acid with a blackish color. Cotton is dyed from a soda-alkaline bath in real green-gray tones.
CH138232D 1928-09-08 1928-09-08 Process for the production of a new azo dye. CH138232A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH138232T 1928-09-08
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH138232A true CH138232A (en) 1930-02-15

Family

ID=25712786

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138232D CH138232A (en) 1928-09-08 1928-09-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH138232A (en)

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