CH274138A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH274138A
CH274138A CH274138DA CH274138A CH 274138 A CH274138 A CH 274138A CH 274138D A CH274138D A CH 274138DA CH 274138 A CH274138 A CH 274138A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
red
fastness
monoazo dye
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Sandoz
Original Assignee
Ag Sandoz
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 Sandoz filed Critical Ag Sandoz
Publication of CH274138A publication Critical patent/CH274138A/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

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Monoazofarbstoffes.       Das vorliegende Patent betrifft ein     Ver-          faliren    zur Herstellung eines neuen     ehromier-          baren        -illoiioazofarbstoffes,    dadurch gekenn  zeichnet, dass man     l.-Oxy-2-aminobenzol-l-          cliloi--6-sulfonsäureanilid    dianotiert und mit       1-1'lic,nvl-5-pyrazolon-3-earbonsäureamid    kup  pelt.  



  Die Teile des     Beispiels    sind Gewichtsteile.       Beispiel:     29,8 Teile     1-Oxy-2-aniinobenzol-4-Chlor-6-          sulfonsäureanilid    werden mit 6,9 Teilen Na  triumnitrit in üblicher Weise indirekt. diano  tiert und die     Diazosuspension    mit. 21 Teilen       1-Phenvl-5-pyrazolon-3-carbonsäureamid,    das       ii!    100 Teilen Wasser mit     überschüssigem     Ammoniak gelöst ist, vereinigt.

   Nach mehr  stündigem Rühren bei 7.0 bis 150 wird der  ausgefallene Farbstoff auf geeignete Weise       aufgearbeitet.    Getrocknet stellt der Farbstoff  ein braunrotes Pulver dar, das sieh in konzen  trierter     Schwefelsäure    und in verdünnter Na  tronlauge mit ziegelroter Farbe löst.         Naehehromiert    und     inetachrom    neutral  wird Wolle in blaustichig roten Tönen ge  färbt. Die Färbungen besitzen eine hervor  ragende Lichtechtheit, sehr gute     Karbonisier-          eelitheit    und. gute     Nasseehtheiten.  



  Process for the preparation of a monoazo dye. The present patent relates to a process for the production of a new honorable -illoiioazo dye, characterized in that 1.-oxy-2-aminobenzene-l-cliloi-6-sulfonic anilide is dianotated and with 1-1'lic, nvl-5-pyrazolon-3-carboxamide kup pelt.



  The parts of the example are parts by weight. Example: 29.8 parts of 1-oxy-2-aniinobenzene-4-chloro-6-sulfonic acid anilide are trium nitrite with 6.9 parts of sodium in the usual indirect manner. diano tiert and the diazo suspension with. 21 parts of 1-Phenvl-5-pyrazolon-3-carboxamide, the ii! 100 parts of water is dissolved with excess ammonia, combined.

   After several hours of stirring at 7.0 to 150, the precipitated dye is worked up in a suitable manner. When dried, the dye is a brownish-red powder that dissolves in concentrated sulfuric acid and dilute sodium hydroxide solution with a brick-red color. Close-chromed and inetachrome neutral, wool is dyed in blue-tinged red tones. The dyeings have excellent lightfastness, very good carbonizability and. good wetness.

Claims (1)

P ATBNTANSPRUCII Verfahren zur Herstellung eines neuen ehroinierbaren Monoazofarbstoffes, dadurch gekennzeichnet, da.ss man 1-Oxy-2-aminoben- zol-4-cWor-6-sulfonsäureanilid dianotiert und mit 1-Phenyl-5-pyrazolon-3-carbonsäureamid kuppelt. Der neue Farbstoff stellt getrocknet ein braunrotes Pulver dar, das sich in konzen trierter Schwefelsäure und in verdünnter Na tronlauge mit ziegelroter Farbe löst. Nachchromiert und nietachrom neutral wird Wolle in blaustichig roten Tönen ge färbt. P ATBNTANSPRUCII Process for the preparation of a new earning monoazo dye, characterized in that 1-oxy-2-aminobenzene-4-cWor-6-sulfonic acid anilide is dianotized and coupled with 1-phenyl-5-pyrazolone-3-carboxamide. When dried, the new dye is a brownish-red powder that dissolves in concentrated sulfuric acid and dilute sodium hydroxide solution with a brick-red color. After chrome-plated and nietachrome neutral, wool is dyed in blue-tinged red tones. Die Färbungen besitzen eine hervor ragende Lichtechtheit, sehr gute Karbonisier- eehtheit und gute Nassechtheiten. The dyeings have excellent light fastness, very good carbonization fastness and good wet fastness properties.
CH274138D 1949-01-21 1949-01-21 Process for the preparation of a monoazo dye. CH274138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH270833T 1949-01-21
CH274138T 1949-01-21

Publications (1)

Publication Number Publication Date
CH274138A true CH274138A (en) 1951-03-15

Family

ID=25731260

Family Applications (1)

Application Number Title Priority Date Filing Date
CH274138D CH274138A (en) 1949-01-21 1949-01-21 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH274138A (en)

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