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CH113866A - Process for the production of a chromating dye. - Google Patents

Process for the production of a chromating dye.

Info

Publication number
CH113866A
CH113866A CH113866DA CH113866A CH 113866 A CH113866 A CH 113866A CH 113866D A CH113866D A CH 113866DA CH 113866 A CH113866 A CH 113866A
Authority
CH
Switzerland
Prior art keywords
dye
black
zinc
chromating
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 CH113866A publication Critical patent/CH113866A/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
    • 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
    • C09B45/22—Monoazo compounds containing other metals
    • 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

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Chromierungsfarbstoffes.       Es wurde gefunden,     dass    man einen neuen       Chromierungsfarbstoff    erhält, wenn man den"  reduzierten     Azofarbstoff    aus .der nitrierten       Diazoverbindung    der     1-Amino-2-oxynaphtha:          lin-4-sulfosäure    und     ss-Naphthol,    mit zinkab  gebenden Mitteln behandelt.

   Der neue     zink-          haltige    Farbstoff, der sich durch Leichtlös  lichkeit und gutes     Egalisierungsvermögen     auszeichnet, bildet ein schwarzbraunes Pul  ver, löst sich leicht in     Wasser    mit. violetter  Farbe, welche auf Zusatz von     Ätzalkalien     nach blaurot umschlägt, und färbt Wolle in  violetten     bez\v.    braunschwarzen Tönen an,       welche    beim     Nachchronnieren    grau     bezw.     schwarz werden.  



       Beispiel:     500 Teile einer 10     %igen.        Ätznatronlösung     werden mit einer konzentrierten Lösung von  7 Teilen     Zinkehlorid.    versetzt. Man rührt bis  sich alles gelöst hat und fügt eine Lösung  von 43,2 Teilen des reduzierten Farbstoffes  aus der nitrierten     Diazoverbindung    der 1  Amino-2-oxynaphthalin-4-sulfosäure und     ss-          I\Taphthol    in 750 Teilen Wasser hinzu. Man  rührt einige Zeit, stellt durch Säurezusatz    neutral und fällt die     Zinkverbindung    durch       Kochsalzzusatz    aus.  



  An Stelle des angegebenen zinkabgeben  den     Mittels    können natürlich auch andere,       -wie        zum    Beispiel     Chlorzinkammoniak,        Zink-          hydroxyd    usw., verwendet werden.



  Process for the production of a chromating dye. It has been found that a new chromating dye is obtained if the "reduced azo dye from .der nitrated diazo compound of 1-amino-2-oxynaphtha: lin-4-sulfonic acid and ß-naphthol is treated with zinc donating agents.

   The new zinc-containing dye, which is characterized by its easy solubility and good leveling power, forms a black-brown powder that easily dissolves in water. violet color, which changes to blue-red when caustic alkalis are added, and dyes wool in violet or brown-black tones, which become gray or go black.



       Example: 500 parts of a 10%. Caustic soda solution is mixed with a concentrated solution of 7 parts of zinc chloride. offset. The mixture is stirred until everything has dissolved and a solution of 43.2 parts of the reduced dye from the nitrated diazo compound of 1-amino-2-oxynaphthalene-4-sulfonic acid and s-taphthol in 750 parts of water is added. The mixture is stirred for some time, neutralized by the addition of acid and the zinc compound is precipitated by the addition of sodium chloride.



  Instead of the specified zinc-releasing agent, others, such as, for example, zinc chloride ammonia, zinc hydroxide, etc., can of course also be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Chromierungsfarbstoffes, dadurch gekenn zeichnet, .dass man den reduzierten: Azofarb- stoff aus der nitrierten Dia.zoverbindung der i-Amino-2-oxynaphthalin-4-sulfosäure und ss Naphthol, mit zinkabgebenden Mitteln be handelt. PATENT CLAIM: Process for the production of a new chromating dye, characterized in that the reduced: azo dye from the nitrated dia.zo compound of i-amino-2-oxynaphthalene-4-sulfonic acid and ss naphthol is treated with zinc-releasing agents. Der neue zinkhaltige Farbstoff, der sich durch Leichtlöslichkeit und gutes Egali- sierungsvermögen auszeichnet, bildet ein schwarzbraunes Pulver, löst sich leicht in Wasser mit violetter Farbe, welche auf Zu satz von Ätzalkalien nach blaurot umschlägt, und färbt Wolle in violetten bezw. braun schwarzen Tönen an, welche beim Nachchro- mieren grau bezw. schwarz werden. The new zinc-containing dye, which is characterized by its easy solubility and good leveling capacity, forms a black-brown powder, dissolves easily in water with a violet color, which changes to blue-red on addition of caustic alkalis, and dyes wool in violet or. brown-black tones, which are gray or go black.
CH113866D 1923-04-19 1924-10-16 Process for the production of a chromating dye. CH113866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH105939T 1923-04-19
CH113866T 1924-10-16

Publications (1)

Publication Number Publication Date
CH113866A true CH113866A (en) 1926-02-16

Family

ID=25706961

Family Applications (1)

Application Number Title Priority Date Filing Date
CH113866D CH113866A (en) 1923-04-19 1924-10-16 Process for the production of a chromating dye.

Country Status (1)

Country Link
CH (1) CH113866A (en)

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