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CH138228A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH138228A
CH138228A CH138228DA CH138228A CH 138228 A CH138228 A CH 138228A CH 138228D A CH138228D A CH 138228DA CH 138228 A CH138228 A CH 138228A
Authority
CH
Switzerland
Prior art keywords
azo dye
blue
production
new
new azo
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 CH138228A publication Critical patent/CH138228A/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

Landscapes

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

Description

  

      Verfahren    zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man 1     Mol    des     5,5'-          Dioxy-7,7'-disulfo-1,2,2',1'-dinaphthazins    mit  2     Mol        diazotierter        4-Chlor-2-amino-l-phenol-          6-sulfosätire    kombiniert.  



  Der neue Farbstoff ist trocken ein dunk  les Pulver, welches in Wasser und in  verdünnten Alkalien mit blauer und in kon  zentrierter Schwefelsäure reit grünschwarzer  Farbe löslich ist. Baumwolle wird aus     soda-          alkalischem        Glaubersalzbade    in blauen Tönen  angefärbt, die durch Nachbehandlung mit  kupferabgebenden Mitteln in echte graublaue  Töne umgewandelt werden können.  



  <I>Beispiel:</I>  47,2 Teile des     5,5'-Dioxy-7,7'-disulfo-          1,2,2',1'-dinaphthazins    werden zusammen mit  25 Teilen Soda in 500 Teilen Wasser in  Lösung gebracht und mit dem     Diazokörper     aus 45 Teilen 4-Chlor-2-amiuophenol-6-sulfo-    säure kombiniert. Durch     Aussalzen    wird nach       beendetergupplungderFarbatoffabgeschieden.  



      Process for the production of a new azo dye. It has been found that a new dye is obtained if 1 mole of 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazine is mixed with 2 moles of diazotized 4-chloro-2 -amino-l-phenol- 6-sulfosätire combined.



  The new dye is a dry, dark powder, which is soluble in water and in dilute alkalis with blue and in concentrated sulfuric acid a greenish-black color. Cotton is dyed from a soda-alkaline Glauber's salt bath in blue tones, which can be converted into real gray-blue tones by subsequent treatment with copper-releasing agents.



  <I> Example: </I> 47.2 parts of the 5,5'-dioxy-7,7'-disulfo-1,2,2 ', 1'-dinaphthazine are mixed with 25 parts of soda in 500 parts of water in Brought solution and combined with the diazo body from 45 parts of 4-chloro-2-amiuophenol-6-sulfonic acid. After coupling is complete, the coloring agent is separated out by salting out.

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 1M1 diazotierter 4-Chlor- 2-amino-l-phenol-6-sulfosäure kombiniert. Der neue Farbstoff ist trocken ein dunkles Pulver, welches in Wasser und in verdünnten Alkalien mit blauer und in konzentrierter Schwefelsäure mit grünschwarzer Farbe lös lich ist. PATENT 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 with 2 1M1 diazotized 4-chloro 2-amino-l-phenol-6-sulfonic acid combined. The new dye is a dry dark powder, which is soluble in water and in dilute alkalis with blue and in concentrated sulfuric acid with a greenish-black color. Baumwolle wird aus sodaalkalischem Glaubersalzbade in blauen Tönen angefärbt, die durch Nachbehandlung mit kupferabge benden Mitteln in echte graublaue Töne um gewandelt werden können. Cotton is dyed from a soda-alkaline Glauber's salt bath in blue tones, which can be converted into real gray-blue tones by subsequent treatment with copper-emitting agents.
CH138228D 1928-09-08 1928-09-08 Process for the production of a new azo dye. CH138228A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH138228T 1928-09-08
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH138228A true CH138228A (en) 1930-02-15

Family

ID=25712782

Family Applications (1)

Application Number Title Priority Date Filing Date
CH138228D CH138228A (en) 1928-09-08 1928-09-08 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH138228A (en)

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