CH135392A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH135392A
CH135392A CH135392DA CH135392A CH 135392 A CH135392 A CH 135392A CH 135392D A CH135392D A CH 135392DA CH 135392 A CH135392 A CH 135392A
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 CH135392A publication Critical patent/CH135392A/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

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 132916.    Verfahren zur Herstellung     eines    neuen     Azofarbstoffes.       Es wurde gefunden, dass man einen neuen       Farbstoff    erhält, wenn man     diazotiertes        2,4-          Dichloranilin    mit     1(2,5-Dichlor-4-sulfo)-phenyl-          3-methyl-5-pyrazolon    kuppelt.  



  Der neue     Farbstoff'    bildet ein gelbes Pul  ver, er löst sich in Wasser mit gelber Farbe  und ist zum Färben von Wolle und Seide  geeignet. 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 Verwen  dung finden.  



       Beispiel:     16,2 Teile 2,4     Dichloranilin    werden wie  üblich dianotiert. Bei 5-10  wird diese     Diazo-          lösung    mit einer überschüssiges     Natriumcar-          bonat    enthaltenden Lösung von 34 Teilen       1(2,5-Dichlor-4-sulfo)-phenyl-3-methyl-5-pyra-          zolon    vereinigt. Die Kupplung setzt sofort  ein. Man rührt bis zum Verschwinden der         Diazoverbindung,    filtriert den ausgefällten       Farbstoff    und trocknet ihn.



  <B> Additional patent </B> to main patent no. 132916. Process for the production of a new azo dye. It has been found that a new dye is obtained when diazotized 2,4-dichloroaniline is coupled with 1 (2,5-dichloro-4-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.



       Example: 16.2 parts of 2,4 dichloroaniline are dianotized as usual. At 5-10, this diazo solution is combined with a solution of 34 parts of 1 (2,5-dichloro-4-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 zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man dianotiertes 2,4- Dichloranilin mit 1(2,5- Dichlor - 4 - s u lfo) - phenyl-3-methyl-5-pyrazolon kuppelt. Der neue Farbstoff bildet ein gelbes Pul ver, er löst sich in Wasser mit gelber Farbe und ist zum Färben von Wolle und Seide geeignet. 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 dianotated 2,4-dichloroaniline is coupled with 1 (2,5-dichloro - 4 - s u lfo) - 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 Metallsalze übergeführt werden und als Lack Verwen dung finden. The new dye can also be converted into insoluble metal salts and used as a varnish.
CH135392D 1927-11-24 1927-11-24 Process for the production of a new azo dye. CH135392A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH132916T 1927-11-24
CH135392T 1927-11-24

Publications (1)

Publication Number Publication Date
CH135392A true CH135392A (en) 1929-09-15

Family

ID=25711954

Family Applications (1)

Application Number Title Priority Date Filing Date
CH135392D CH135392A (en) 1927-11-24 1927-11-24 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH135392A (en)

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