CH123460A - Process for the preparation of a new dye. - Google Patents

Process for the preparation of a new dye.

Info

Publication number
CH123460A
CH123460A CH123460DA CH123460A CH 123460 A CH123460 A CH 123460A CH 123460D A CH123460D A CH 123460DA CH 123460 A CH123460 A CH 123460A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
brown
dissolves
sulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH123460A publication Critical patent/CH123460A/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
    • C09B51/00—Nitro or nitroso dyes

Landscapes

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

Description

  

      Zusatzpatent    zum Hauptpatent Nr. 121572.         Verfahren    zur Darstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen wert  vollen, in Wasser löslichen Farbstoff erhält,  der vorzugsweise die tierische Faser in ech  ten braunen Tönen anfärbt, wenn man 1 Idol.  2 . 6 -     Dinitro-l-chlorbenzol-4-sulfosäure    mit  1     Mol.    4 -     Aminodiphenylamin-2-sulfosäure     kondensiert. Die Kondensation     erfolgt    unter  Austritt des Chloratoms und wird zweck  mässig in Wasser bei     Kochtemperatur    unter  Zusatz von säurebindenden Mitteln vorge  nommen und verläuft in sehr guter Ausbeute.  



  Der Farbstoff zeichnet sich durch her  vorragende Lichtechtheit und     Egalisierungs-          vermögen    aus.  



  <I>Beispiel:</I>  32 Teile 2. 6 -     Dinitro-l-chlorbenzol    -     4-          sulfosaures    Kali (1     Mol.)    werden in 300 Tei  len Wasser mit 26,4 Teilen     4-Aminodiphenyl-          amin-2-sulfosäure    (1     Mol.)    unter Zugabe der  nötigen Menge     Natriumacetat    mehrere Stun  den gekocht. Hierauf wird heiss     filtriert     und der Farbstoff durch Zusatz von Koch  salz abgeschieden.    Dem Farbstoff entspricht folgendes For  melbild:    Der Farbstoff bildet ein dunkelbraunes  Pulver, das sich in warmem Wasser braun  rot löst.

   Konzentrierte     Schwefelsäure    löst  kalt     grünlichgelb,    beim     Erwärmen    wird die  Lösung grün. Wolle wird angefärbt. in ech  ten, braunen     Tönen,    die sich durch ihre be  sonders gute Wasserechtheit auszeichnen.



      Additional patent to main patent No. 121572. Process for the preparation of a new dye. It has been found that a valuable, water-soluble dye is obtained, which preferably dyes the animal fiber in real brown tones, if one idol. 2. 6 - Dinitro-1-chlorobenzene-4-sulfonic acid condensed with 1 mol. 4 - Aminodiphenylamine-2-sulfonic acid. The condensation takes place with the escape of the chlorine atom and is expediently made in water at boiling temperature with the addition of acid-binding agents and proceeds in very good yield.



  The dye is distinguished by its excellent lightfastness and leveling capacity.



  <I> Example: </I> 32 parts 2. 6 - Dinitro-1-chlorobenzene - 4-sulphonic potassium (1 mol.) Are mixed in 300 parts of water with 26.4 parts of 4-aminodiphenylamine-2-sulphonic acid (1 mol.) With the addition of the necessary amount of sodium acetate for several hours. It is then filtered while hot and the dye is deposited by adding sodium chloride. The following formula corresponds to the dye: The dye forms a dark brown powder that dissolves in warm water, brown and red.

   Concentrated sulfuric acid dissolves cold greenish yellow, when heated the solution turns green. Wool is dyed. in real, brown tones, which are characterized by their particularly good waterfastness.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 2. 6 - Dinitro-l-chlorbenzol-4-sulfosäure und 4 - Aminodiphenylamin-2-sulfosäure im molekularen Verhältnis miteinander kon densiert. EMI0001.0026 Der Farbstoff bildet ein dunkelbraunes Pulver, das sich in warmem Wasser braun rot löst. Konzentrierte Schwefelsäure löst kalt grünlichgelb, beim Erwärmen wird die Lösung grün. Wolle wird angefärbt in ech- ten, braunen Tönen, die sich durch ihre be sonders gute Wasserechtheit auszeichnen. PATENT CLAIM: Process for the preparation of a new dye, characterized in that one 2. 6 - dinitro-1-chlorobenzene-4-sulfonic acid and 4 - aminodiphenylamine-2-sulfonic acid condenses with one another in a molecular ratio. EMI0001.0026 The dye forms a dark brown powder that dissolves brown-red in warm water. Concentrated sulfuric acid dissolves cold greenish yellow, when heated the solution turns green. Wool is dyed in real, brown tones, which are characterized by their particularly good waterfastness.
CH123460D 1926-07-19 1926-07-19 Process for the preparation of a new dye. CH123460A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH123460T 1926-07-19
CH121572T 1926-07-19

Publications (1)

Publication Number Publication Date
CH123460A true CH123460A (en) 1927-11-16

Family

ID=25709716

Family Applications (1)

Application Number Title Priority Date Filing Date
CH123460D CH123460A (en) 1926-07-19 1926-07-19 Process for the preparation of a new dye.

Country Status (1)

Country Link
CH (1) CH123460A (en)

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