CH245281A - Process for the production of a chromium-plated dye. - Google Patents

Process for the production of a chromium-plated dye.

Info

Publication number
CH245281A
CH245281A CH245281DA CH245281A CH 245281 A CH245281 A CH 245281A CH 245281D A CH245281D A CH 245281DA CH 245281 A CH245281 A CH 245281A
Authority
CH
Switzerland
Prior art keywords
dye
chromium
production
sulfonic acid
acid
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH245281A publication Critical patent/CH245281A/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
    • C09B45/01—Complex metal compounds of azo dyes characterised by the method of metallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines     ehromierten    Farbstoffes.         Gegenstand    vorliegenden Patentes ist     ein     Verfahren zur     Herstellung    eines     chromierten     Farbstoffes. Das Verfahren ist dadurch ge  kennzeichnet, dass der Farbstoff aus     diazo-          tiertem        5-Nitro-2-amino-l-phenol        und    1-Naph       thol-8-sulfonsäure-5-sulfonsäure-N-methyl-N-          phenyl-amid    mit     chramsalicylsaurem    Ammo  nium behandelt wird.  



  Der     entstandene    neue     chromhaltige    Kom  plexfarbstoff ist ein     dunkelblaues    Pulver.  Er färbt Wolle aus saurem Bade in grün  stichig grauen Tönen von hervorragender  Walk- und Schweissechtheit.

      <I>Beispiel:</I>  57,5     Teile        Natriumsalz    des Farbstoffes       5-Nitro-2-amino-l-phenol        --j-        1-Naphthol-8-          sulfonsäure    - 5 -     sulfonsäure    - N -     methyl    - N     -          phenyl-amid    werden     ir-    1000 Teilen     einer     Lösung von     chromsalicylsaurem    Ammonium  entsprechend 9,1 Teilen Chromoxyd während  20 Stunden unter     Rückfluss    beim     Siedepunkt       gerührt.

   Es     bildet    sich dabei eine tiefblaue       Lösung,        aus    der der     Komplexfarbstoff    schon       heiss        teilweise        auskristallisiert.    Zu dessen  Isolierung versetzt man mit     Kochsalz    und  saugt den als dunkelblaues Pulver ausge  fallenen Farbstoff ab     und        trocknet        ihn.  



  Process for the production of an honored dye. The present patent relates to a process for the production of a chromized dye. The process is characterized in that the dye is made from diazotized 5-nitro-2-amino-1-phenol and 1-naphthol-8-sulfonic acid-5-sulfonic acid-N-methyl-N-phenyl-amide with chramsalicylic acid Ammonium is treated.



  The resulting new chromium-containing complex dye is a dark blue powder. It dyes wool from acid baths in green, gray tones of excellent mill and perspiration fastness.

      <I> Example: </I> 57.5 parts of the sodium salt of the dye 5-nitro-2-amino-1-phenol --j- 1-naphthol-8-sulfonic acid - 5 - sulfonic acid - N - methyl - N - phenyl -amid ir- 1000 parts of a solution of chromsalicylic acid ammonium corresponding to 9.1 parts of chromium oxide are stirred for 20 hours under reflux at the boiling point.

   A deep blue solution is formed, from which the complex dye partially crystallizes out while hot. To isolate it, table salt is added and the dye which has precipitated out as a dark blue powder is filtered off with suction and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chromier- ten Farbstoffes, dadurch gekennzeichnet, dass der Farbstoff aus diazotiertem 5-Nitro-2- amino-l-phenol und 1-Naphthol-8-sufon- säure-5-sulfonsäure-N-methyl-N-phenyl-amid mit chromsalicylsaurem Ammonium behan delt wird. Der entstandene neue chromhaltige Kom plexfarbstoff ist <RTI PATENT CLAIM: Process for the production of a chromized dye, characterized in that the dye is made from diazotized 5-nitro-2-amino-1-phenol and 1-naphthol-8-sulfonic acid-5-sulfonic acid-N-methyl-N -phenyl-amide is treated with chromium salicylic acid ammonium. The resulting new chromium-containing complex dye is <RTI ID="0001.0057"> ein dunkelblaues Pulver. Er färbt Wolle aus saurem Bade in grün stichig grauen Tönen von hervorragender Walk- und Schweissechtheit. ID = "0001.0057"> a dark blue powder. It dyes wool from acid baths in green, gray tones of excellent mill and perspiration fastness.
CH245281D 1943-06-04 1943-06-04 Process for the production of a chromium-plated dye. CH245281A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH245281T 1943-06-04
CH240992T 1946-02-15

Publications (1)

Publication Number Publication Date
CH245281A true CH245281A (en) 1946-10-31

Family

ID=25728561

Family Applications (1)

Application Number Title Priority Date Filing Date
CH245281D CH245281A (en) 1943-06-04 1943-06-04 Process for the production of a chromium-plated dye.

Country Status (1)

Country Link
CH (1) CH245281A (en)

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