CH133104A - Process for the production of a new chromium-containing azo dye. - Google Patents

Process for the production of a new chromium-containing azo dye.

Info

Publication number
CH133104A
CH133104A CH133104DA CH133104A CH 133104 A CH133104 A CH 133104A CH 133104D A CH133104D A CH 133104DA CH 133104 A CH133104 A CH 133104A
Authority
CH
Switzerland
Prior art keywords
dye
production
azo dye
blue
containing 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 CH133104A publication Critical patent/CH133104A/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
    • C09B45/16—Monoazo compounds containing chromium

Landscapes

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

Description

  

  Zusatzpatent zum Hauptpatent     Nr.   <B>130698.</B>         Verfabren    zur Herstellung eines neuen     ehromhaltigen        Azofarbstoffes.   <B>-</B>    Es wurde gefunden,     dass    man einen neuen       ebromhaltigen        Azofarbstoff    erhält,

   wenn man  das     Natriumsalz    des Farbstoffes aus     diazo-          tierter        1-Amino-2-naphthol-4-sulfosäure    und       1-Naphthol-4.8-disuliosäure    in Gegenwart  von alkalischen Reduktionsmitteln mit     Chrom-          hydroxydhydraten    behandelt. Der neue Farb  stoff stellt ein blauschwarzes Pulver dar,  welches sich in Wasser, verdünnter Natron  lauge und konzentrierter Schwefelsäure mit  blauer Farbe löst. Wolle wird aus schwefel  saurem Bade echt blaugrau gefärbt.  



  <I>Beispiel:</I>  <B>30</B> Teile des     Natronsalzes    des     Farbstoffes     aus     diazotierter        1-Amino-2-naphthol-4-sulfo-          säure    und     1-Naphthol-4.        8-disulfosäure    werden  in eine Mischung von<B>36</B> Teilen kristallisier  tem Schwefelnatrium, 46 Teilen     Chromhy-          droxydpaste        mit        9,

  1        %        Cr203        und        10        Teilen       Wasser eingerührt und nach langsamem Er  wärmen 12 Stunden bei<B>90-100 0</B> gehalten.  Der Farbstoff wird isoliert und getrocknet.



  Additional patent to main patent no. <B> 130698. </B> Process for the production of a new azo dye containing Ehrom. <B> - </B> It has been found that a new ebromine-containing azo dye is obtained,

   when treating the sodium salt of the dye from diazo-tated 1-amino-2-naphthol-4-sulfonic acid and 1-naphthol-4,8-disulioic acid in the presence of alkaline reducing agents with chromium hydroxide hydrates. The new dye is a blue-black powder that dissolves in water, dilute caustic soda and concentrated sulfuric acid with a blue color. Wool is dyed really blue-gray from acidic sulfuric baths.



  <I> Example: </I> <B> 30 </B> parts of the sodium salt of the dye from diazotized 1-amino-2-naphthol-4-sulfonic acid and 1-naphthol-4. 8-disulfonic acid are mixed with <B> 36 </B> parts of crystallized sodium sulphide, 46 parts of chromium hydroxide paste with 9,

  1% Cr203 and 10 parts of water are stirred in and, after slowly heating, kept at <B> 90-100 0 </B> for 12 hours. The dye is isolated and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chrom- haltigen Azofarbstoffes, dadurch gekennzeich net, dass man das Natriumsalz des Farb stoffes aus diazotierter 1-Amino-2-iiaphthol- 4-sulfosäure und 1-Naphthol-4.8-disulfosäure in Gegenwart von* alkalischen Reduktions mitteln mit Chromhydroxydhydraten behan delt. PATENT CLAIM: Process for the production of a chromium-containing azo dye, characterized in that the sodium salt of the dye is made from diazotized 1-amino-2-iiaphthol-4-sulfonic acid and 1-naphthol-4,8-disulfonic acid in the presence of * alkaline reducing agents treated with chromium hydroxide hydrates. Der neue Farbstoff stellt ein blau schwarzes Pulver dar, welches sich in Wasser, verdünnter Natronlauge und konzentrieter Schwefelsäure mit blauer Farbe löst. Wolle wird aus schwefelsaurem Bade echt blauzrau gef ärbt. The new dye is a blue-black powder that dissolves in water, dilute caustic soda and concentrated sulfuric acid with a blue color. Wool is dyed really blue-gray from sulfuric acid bath.
CH133104D 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye. CH133104A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH130698T 1927-08-13
CH133104T 1927-08-13

Publications (1)

Publication Number Publication Date
CH133104A true CH133104A (en) 1929-05-15

Family

ID=25711491

Family Applications (1)

Application Number Title Priority Date Filing Date
CH133104D CH133104A (en) 1927-08-13 1927-08-13 Process for the production of a new chromium-containing azo dye.

Country Status (1)

Country Link
CH (1) CH133104A (en)

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