CH146767A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH146767A
CH146767A CH146767DA CH146767A CH 146767 A CH146767 A CH 146767A CH 146767D A CH146767D A CH 146767DA CH 146767 A CH146767 A CH 146767A
Authority
CH
Switzerland
Prior art keywords
dye
disulfo
dioxy
mol
azo 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 CH146767A publication Critical patent/CH146767A/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.   <B>136650.</B>    Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden,     dass    man einen neuen  Farbstoff erhält, wenn man auf<B>1</B>     Mol    des  <B>5,</B>     5'-Dioxy-7,        7'-disulfo-1,   <B>l',</B> 2,     2-dinaphtha-          zins    der Formel  
EMI0001.0009     
    das durch saure Kupplung von     diazotierter          Sulfanilsäure    mit     5,5'-Dioxy-7,7'-disulfo-2,

            2'-dinaphthylamin    und Erwärmen des gebil  deten Reaktionsproduktes erhalten werden  kann, 2     Mol        diazotierte        4-Nitro-2-amino-l-          plienol-6-sulfosäure    einwirken     lässt    und den  erhaltenen Farbstoff mit einem     ehromabge-          benden    Mittel behandelt.  



  Der erhaltene Farbstoff ist ein dunkles  Pulver, das sich in Wasser mit     schwärzlich-          grüner,    in verdünnten Alkalien mit grünblauer    und in konzentrierter Schwefelsäure mit<B>grü-</B>  ner Farbe löst. Er färbt Baumwolle,     natür-          liehe    Seide sowie Kunstseiden aus regene  rierter Zellulose aus neutralem oder alkali  schem Bade in     grünstichig    grauen Tönen von  sehr guter Echtheit.  



  <I>Beispiel:</I>  47,2 Teile<B>5,</B>     5'-Dioxy-7,        7'-disulfo-1,   <B>l',</B> 21,       2-dinaphtbazin    werden in Wasser zusammen  mit 40 Teilen Soda gelöst und mit dem       Diazokörper    aus 45 Teilen     4-Niti-o-2-aniino-          1-phenol-6-sulfosäure    kombiniert. Nach been  deter Kupplung ist der     Disazofarbstoff    aus  gefallen und wird filtriert.

   Man löst ihn     nun     in 4000 Teilen Wasser und fügt 200 Teile       einer        5,5%igen        Fluorchromlösung        zu.        Man     erwärmt     rückfliessend   <B>15-20</B> Stunden, salzt  aus, filtriert und trocknet.



  Additional patent to main patent no. <B> 136650. </B> Process for the production of a new azo dye. It has been found that a new dye is obtained if one uses <B> 1 </B> mol of <B> 5, </B> 5'-dioxy-7, 7'-disulfo-1, <B> l ', </B> 2, 2-dinaphtha- zine of the formula
EMI0001.0009
    the acidic coupling of diazotized sulfanilic acid with 5,5'-dioxy-7,7'-disulfo-2,

            2'-dinaphthylamine and heating of the formed reaction product can be obtained, 2 moles of diazotized 4-nitro-2-amino-l-plienol-6-sulfonic acid are allowed to act and the dye obtained is treated with an emitting agent.



  The dye obtained is a dark powder that dissolves in water with a blackish-green color, in dilute alkalis with green-blue and in concentrated sulfuric acid with a <B> green </B> color. It dyes cotton, natural silk and artificial silk made from regenerated cellulose from a neutral or alkaline bath in greenish gray tones of very good fastness.



  <I> Example: </I> 47.2 parts <B> 5, </B> 5'-Dioxy-7, 7'-disulfo-1, <B> l ', </B> 21, 2- Dinaphtbazin are dissolved in water together with 40 parts of soda and combined with the diazo body made of 45 parts of 4-nitro-o-2-aniino-1-phenol-6-sulfonic acid. After the coupling was completed, the disazo dye has precipitated and is filtered.

   It is now dissolved in 4000 parts of water and 200 parts of a 5.5% strength fluorochrome solution are added. The mixture is refluxed for <B> 15-20 </B> hours, salted out, filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man auf<B>1</B> Mol des<B>5,</B> 5'-Dioxy-7, 7'-disulfo- 1, <B>l',</B> 2, 2-dinaphthazins der Formel EMI0002.0006 das durch saure Kupplung von diazotierter Sulfanilsäure mit<B>5,</B> 5'-Dioxy-7, 7'-disulfo-2, 2'-dinaphthylamin und Erwärmen des gebil deten Reaktionsproduktes erhalten werden kann, Claim: Process for the preparation of a new azo dye, characterized in that one uses <B> 1 </B> mol of <B> 5, </B> 5'-dioxy-7, 7'-disulfo-1, <B > l ', </B> 2, 2-dinaphthazins of the formula EMI0002.0006 which can be obtained by acidic coupling of diazotized sulfanilic acid with <B> 5, </B> 5'-dioxy-7, 7'-disulfo-2, 2'-dinaphthylamine and heating the reaction product formed, 2 Mol diazotierte 4-Nitro-2-amino-l- phenol-6-sulfosätire einwirken lässt und den erhaltenen Farbstoff mit einein ebromabge- benden Mittel behandelt. Der erhaltene Farbstoff ist ein dunkles Pulver, das sich in Wasser mit schwärzlich- grüner, in verdünnten Alkalien mit grün blauer und in konzentrierter Schwefelsäure mit grüner Farbe löst. Er färbt Baumwolle, natürliche Seide sowie Kunstseiden aus re generierter Zellulose aus neutralem oder al kalischem Bade in grünstichig grauen Tönen von sehr guter Echtheit. Allow 2 mol of diazotized 4-nitro-2-amino-1-phenol-6-sulfosätire to act and treat the dye obtained with an ebromabgebenden agent. The dye obtained is a dark powder which dissolves in water with a blackish-green color, in dilute alkalis with greenish-blue and in concentrated sulfuric acid with a green color. It dyes cotton, natural silk and artificial silk made from regenerated cellulose from neutral or alkaline bath in greenish gray tones of very good fastness.
CH146767D 1929-06-12 1929-06-12 Process for the production of a new azo dye. CH146767A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH146767T 1929-06-12
CH136650T 1929-11-30

Publications (1)

Publication Number Publication Date
CH146767A true CH146767A (en) 1931-04-30

Family

ID=25712805

Family Applications (1)

Application Number Title Priority Date Filing Date
CH146767D CH146767A (en) 1929-06-12 1929-06-12 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH146767A (en)

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