CH106421A - Process for the production of a new chromating dye. - Google Patents

Process for the production of a new chromating dye.

Info

Publication number
CH106421A
CH106421A CH106421DA CH106421A CH 106421 A CH106421 A CH 106421A CH 106421D A CH106421D A CH 106421DA CH 106421 A CH106421 A CH 106421A
Authority
CH
Switzerland
Prior art keywords
dye
new
brown
black
addition
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 CH106421A publication Critical patent/CH106421A/en

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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
    • 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
    • C09B45/14—Monoazo compounds
    • C09B45/16—Monoazo compounds containing chromium
    • 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
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/08—Preparation of azo dyes from other azo compounds by reduction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 105939.    Verfahren zur Herstellung eines neuen     Chromier        uugsfarbstoi%s.       Es wurde gefunden, dass man einen neuen       Chromierungsfarbstoff    erhält, wenn man den  Farbstoff, welcher durch Kuppeln der nitrier  ten     Diazoverbindung    der     1-Amino-2-oxynaph-          thalin    - 4 -     sulfosäure    mit     1-Oxynaphthalin-4-          sulfosäure    entsteht, mit     reduzierend    wirken  den Mitteln behandelt.

   Als reduzierend wir  kende Mittel kommen hauptsächlich die Sul  fide,     Sulfhydrate    und Polysulfide von     Alkali-          und        Erdalkalimetallen    in Betracht oder an  dere ähnlich wirkende Mittel, wie beispiels  weise     Eisenoxydulhydrat        bezw.        -karbonat.     



  Der neue Farbstoff stellt getrocknet ein  schwarzbraunes Pulver dar, das sich in Was  ser mit     violettbrauner    Farbe löst, welche auf  Zusatz von Säure nach     braun,    auf Zusatz von       Sadalösung    nach blau und auf Zusatz von       Ätzalkali    nach braunrot umschlägt. Er färbt  aus saurem Bade Wolle in schwarzblauen  Tönen an, welche durch     Na@chchromieren     schwarz werden.

      <I>Beispiel:</I>  Eine möglichst konzentrierte, frisch her  gestellte     Suspension    des Farbstoffes erhalten    durch Kuppeln von 271 Teilen     1-Oxynaph-          th-alin-4-sulfosäure    mit 295 Teilen der nitrier  ten     Diazoverbindung    der     1-Amino-2-oxynaph-          thalin-4-sulfosäure    in Gegenwart von 145  Teilen 80      /oiger    Natronlauge und 10 Teilen       ,Soda    wird mit 360 Teilen     kristallisiertem     Schwefelnatrium versetzt und längere Zeit  gerührt.

   Hierauf wird mit Wasser verdünnt  und der Farbstoff als     braunschwarzer    Nieder  schlag durch     Aussialzen    und schwaches An  säuern der erhaltenen Flüssigkeit abgeschie  den.



  <B> Additional patent </B> to the main patent no. 105939. Process for the production of a new chromium coloring agent% s. It has been found that a new chromating dye is obtained when the dye, which is formed by coupling the nitrated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-4-sulfonic acid, has a reducing effect treated the means.

   As reducing we kende agents mainly the Sul fides, sulfhydrates and polysulfides of alkali and alkaline earth metals into consideration or other similarly acting agents, such as, for example, Eisenoxydulhydrat respectively. -carbonate.



  The new dye is a dried black-brown powder that dissolves in water with a violet-brown color, which changes to brown on the addition of acid, blue on the addition of Soda solution and brown-red on the addition of caustic alkali. He dyes acidic bath wool in black-blue tones, which turn black after chroming.

      <I> Example: </I> A highly concentrated, freshly prepared suspension of the dye obtained by coupling 271 parts of 1-oxynaphth-aline-4-sulfonic acid with 295 parts of the nitrated diazo compound of 1-amino-2- oxynaphthalene-4-sulfonic acid in the presence of 145 parts of 80% sodium hydroxide solution and 10 parts of soda are mixed with 360 parts of crystallized sodium sulphide and stirred for a long time.

   It is then diluted with water and the dye is deposited as a brownish-black precipitate by means of Aussialzen and weak acidification of the resulting liquid.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Chro:mierungsfa,rbstoffes, dadurch gekenn zeichnet, dass der Farbstoff, welcher durch Kuppeln der nitrierten Diazoverbindung der 1-Amino-2-oxynaphthalin-4-sulfosäure mit 1- Oxynaphthalin-4-sulfosäure entsteht, mit re duzierend wirkenden Mitteln behandelt wird. PATENT CLAIM: Process for the production of a new chromating dye, characterized in that the dye, which is formed by coupling the nitrated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid with 1-oxynaphthalene-4-sulfonic acid, has reducing agents is treated. Der neue Farbstoff stellt getrocknet ein schwarzbraunes Pulver dar, das sich in Was ser mit violettbrauner Farbe löst, welche auf Zusatz von Säure nach braun, auf Zusatz von Sodalösunb nach blau und auf Zusatz von @tzalkali nach braunrot umschlägt. Er färbt i -tu2 <B>,</B> saurem Bade Wolle in schwarzblauen Tönen an, welche durch Nachchromieren schwarz werden. The new dye is a black-brown powder when dried, which dissolves in water with a violet-brown color, which changes to brown on addition of acid, blue on addition of soda solution and brown-red on addition of caustic alkali. He dyes i -tu2 <B>, </B> acidic bath wool in black-blue tones, which become black after chrome-plating.
CH106421D 1923-04-19 1923-04-19 Process for the production of a new chromating dye. CH106421A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH106421T 1923-04-19
CH105939T 1923-04-19

Publications (1)

Publication Number Publication Date
CH106421A true CH106421A (en) 1924-08-16

Family

ID=25706959

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106421D CH106421A (en) 1923-04-19 1923-04-19 Process for the production of a new chromating dye.

Country Status (1)

Country Link
CH (1) CH106421A (en)

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