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CH209531A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH209531A
CH209531A CH209531DA CH209531A CH 209531 A CH209531 A CH 209531A CH 209531D A CH209531D A CH 209531DA CH 209531 A CH209531 A CH 209531A
Authority
CH
Switzerland
Prior art keywords
preparation
sulfonic acid
good
dye
monoazo dye
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 CH209531A publication Critical patent/CH209531A/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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     Monoazofarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines     Monoazo-          farbstoffes,    dadurch     gekennzeichnet,    dass man  dianotierte     1-Aminobenzol-2-sulfonsäure    mit       1.Beiizoylamino-6-oxynaphtbalin.4.sulfonsäure     kuppelt.  



  Der so erhaltene Farbstoff ist ein wasser  lösliches, orangerotes Pulver; er besitzt ein  gutes     Egalisiervermögen    und färbt Wolle aus  saurein Bade in lebhaften     Orangetönen    von  sehr guter Lichtechtheit und guter Wasch  und Schweissechtheit.  



  <I>Beispiel:</I>  17,3 Teile     1-Aminobenzol-2-sulfonsäure     werden in der üblichen Weise dianotiert und  die erhaltene     Diazolösung    wird mit einer  überschüssiges     Natriumcarbonat    enthaltenden  Lösung von 35 Teilen 1-Benzoylamino-6-oxy-         naphthalin-4-sulfonsäure    vereinigt.     hjach    be  endeter     Kuppelung    wird der gebildete Farb  stoff abgeschieden und getrocknet.



  Process for the preparation of a monoazo dye. The present patent relates to a process for the production of a monoazo dye, characterized in that dianotated 1-aminobenzene-2-sulfonic acid is coupled with 1.beizoylamino-6-oxynaphthalene.4.sulfonic acid.



  The dye thus obtained is a water-soluble, orange-red powder; it has good leveling properties and dyes wool from acidic baths in lively orange tones of very good lightfastness and good fastness to washing and perspiration.



  <I> Example: </I> 17.3 parts of 1-aminobenzene-2-sulfonic acid are dianotized in the usual way and the diazo solution obtained is mixed with a solution of 35 parts of 1-benzoylamino-6-oxynaphthalene- containing excess sodium carbonate. 4-sulfonic acid combined. Once the coupling has been completed, the dye formed is deposited and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Mono azofarbstoffes, dadurch gekennzeichnet, dass man dianotierte 1-Aminobenzol-2-sulfonsäure mit 1-Benzoylamino-6-oxynaphthalin-4-sulfon- säure kuppelt. Der so erhaltene Farbstoff ist ein wasser lösliches, orangerotes Pulver; er besitzt ein gutes Egalisiervermögen und färbt Wolle aus saurem Bade in lebhaften Orangetönen von sehr guter Lichtechtheit und guter Wasch- und Schweissechtheit. PATENT CLAIM: Process for the production of a mono azo dye, characterized in that dianotated 1-aminobenzene-2-sulfonic acid is coupled with 1-benzoylamino-6-oxynaphthalene-4-sulfonic acid. The dye thus obtained is a water-soluble, orange-red powder; it has good leveling properties and dyes wool from acid baths in lively orange tones of very good lightfastness and good fastness to washing and perspiration.
CH209531D 1937-06-09 1938-06-03 Process for the preparation of a monoazo dye. CH209531A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE209531X 1937-06-09
CH204852T 1938-06-03

Publications (1)

Publication Number Publication Date
CH209531A true CH209531A (en) 1940-04-15

Family

ID=25724096

Family Applications (1)

Application Number Title Priority Date Filing Date
CH209531D CH209531A (en) 1937-06-09 1938-06-03 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH209531A (en)

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