CH132916A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH132916A
CH132916A CH132916DA CH132916A CH 132916 A CH132916 A CH 132916A CH 132916D A CH132916D A CH 132916DA CH 132916 A CH132916 A CH 132916A
Authority
CH
Switzerland
Prior art keywords
production
new
azo dye
dye
good
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 CH132916A publication Critical patent/CH132916A/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
    • C09B29/00—Monoazo dyes prepared by diazotising and coupling
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Description

  

  Verfahren zur Herstellung eines neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man     diazotiertes          2,5-Dichloranilin    mit     1(2-Chior-5-sulfo)-phe-          nyl-3-methyl-5-pyrazolon    kuppelt.  



  Der     neueFarbstoff    bildet ein gelbes Pulver,  er löst sich in Wasser mit gelber Farbe und  ist zum Färben von Wolle und Seide ge  eignet. Er zeichnet sich durch sehr gutes       Egalisierungsvermögen,    sehr gute Lichtecht  heit und gute Wasch-, Säure- und     Walk-          echtheit    seiner Färbungen aus. Der neue       Farbstoff    kann auch in unlösliche Metallsalze  übergeführt werden und als Lack Verwendung  finden.  



  <I>Beispiel:</I>  16,2 Teile     2,5-Dichloranilin    werden wie  üblich     diazotiert.    Bei 5-10  wird diese     Diazo-          lösung    mit einer überschüssiges     Natriumcar-          bonat    enthaltenden Lösung von 28,8 Teilen  1     (2-Chlor-5-sulfo)        -phenyl-3-methyl-5-pyrazo-          lon    vereinigt. Die Kupplung setzt sofort ein.  Man rührt bis zum Verschwinden der Diazo-         verbindung,    filtriert den ausgefällten Farb  stoff und trocknet ihn.



  Process for the production of a new azo dye. It has been found that a new dye is obtained if diazotized 2,5-dichloroaniline is coupled with 1 (2-chloro-5-sulfo) -phenyl-3-methyl-5-pyrazolone.



  The new dye forms a yellow powder, it dissolves in water with a yellow color and is suitable for dyeing wool and silk. It is characterized by very good leveling properties, very good lightfastness and good wash, acid and milled fastness of its dyeings. The new dye can also be converted into insoluble metal salts and used as a varnish.



  <I> Example: </I> 16.2 parts of 2,5-dichloroaniline are diazotized as usual. At 5-10 this diazo solution is combined with a solution of 28.8 parts of 1 (2-chloro-5-sulfo) -phenyl-3-methyl-5-pyrazolone containing excess sodium carbonate. The clutch works immediately. The mixture is stirred until the diazo compound disappears, the precipitated dye is filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zu Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass. man ein diazotiertes 2,5-Dichloranilin mit 1 (2-Chlor-5-sulfo) -phenyl-3-methyl-5-pyrazolon, kuppelt. Der neue Farbstoff bildet ein gelbes Pulver,, er löst sich in Wasser mit gelber Farbe und ist zum Färben von Wolle und Seide ge eignet. Er zeichnet sich durch sehr gutes Egalisierungsvermögen, sehr gute Lichtecht heit und gute Wasch-, Säure- und Walk- echtheit seiner Färbungen aus. PATENT CLAIM: Process for the production of a new azo dye, characterized in that a diazotized 2,5-dichloroaniline is coupled with 1 (2-chloro-5-sulfo) -phenyl-3-methyl-5-pyrazolone. The new dye forms a yellow powder, it dissolves in water with a yellow color and is suitable for dyeing wool and silk. It is characterized by very good leveling properties, very good lightfastness and good wash, acid and milled fastness of its dyeings. Der neue Farbstoff kann auch in unlösliche Metall salze übergeführt werden und als Lack Ver wendung finden. The new dye can also be converted into insoluble metal salts and used as a varnish.
CH132916D 1927-11-24 1927-11-24 Process for the production of a new azo dye. CH132916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH132916T 1927-11-24

Publications (1)

Publication Number Publication Date
CH132916A true CH132916A (en) 1929-05-15

Family

ID=4391114

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132916D CH132916A (en) 1927-11-24 1927-11-24 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH132916A (en)

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