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CH265107A - Process for the production of a chromable dye. - Google Patents

Process for the production of a chromable dye.

Info

Publication number
CH265107A
CH265107A CH265107DA CH265107A CH 265107 A CH265107 A CH 265107A CH 265107D A CH265107D A CH 265107DA CH 265107 A CH265107 A CH 265107A
Authority
CH
Switzerland
Prior art keywords
dye
parts
production
chromable
oxy
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 J R Geigy filed Critical Ag J R Geigy
Publication of CH265107A publication Critical patent/CH265107A/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
    • 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
    • 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
    • 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
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/44—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring
    • C09B62/78—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group not directly attached to a heterocyclic ring with other reactive groups
    • C09B62/82—Azo dyes

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     ehromierbaren        Azofarbatoffes.       Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines     chromier-          baren        Azofarbstoffes.    Das Verfahren ist da  durch gekennzeichnet, dass man     diazotiertes     5 -     Nitro    - 2 -     amino-l-oxy-benzol-4-methylsulfon     mit     1-Aeetylamino-7-oxy        naphthalin    vereinigt.  



  Der Chromkomplex des erhaltenen neuen  Farbstoffes stellt ein graues Pulver dar, das  Wolle aus neutralem Bade in gleichmässig  grauen Tönen von guten     Nassechtheiten    färbt.  <I>Beispiel:</I>  23,2 Teile     5-Nitro-2-amino-l-oxy-benzol-4-          methylsulfon,    erhältlich durch Verseifen von       Nitro-benzoxazolon-methylsulfon,    werden in  150 Teilen heissem Wasser mit 17 Teilen kon  zentrierter Salzsäure gelöst, auf<B>50</B>     abgekühlt     und mit einer Lösung von     Natriumnitrit    (ent  sprechend 6,9 Teilen)

       diazotiert.    Die     Diazo-          niumverbindung    fällt dabei teilweise in Form  lehmgelber Kristalle aus.     Durch    Zugabe von       Natriumbicarbonat    stellt man neutral und  giesst die Aufschlämmung in eine Lösung von  21,1 Teilen     1-Acetyl-ainino-7-oxy-naphthalin,     4,8 Teilen     Natriumhydroxyd,    12 Teilen was  serfreier Soda und 15     Teilen        Pyridin    in 100    Teilen Wasser. Nach Beendigung der     Farb-          stoffbildung    isoliert man den Farbstoff bei  700 durch Versetzen mit     Kochsalz.     



  Der Chromkomplex des Farbstoffes kann  erhalten werden, indem man ihn in 500 Teilen  Wasser mit 200 Teilen einer Lösung von Am  inonium-oxalato-ammino-chromiat (entspre  chend 7,6 Teilen Chromoxyd) unter     Rückfluss     zum Sieden erhitzt, bis die Komplexbildung  beendet ist. Dabei scheidet sieh der Chrom  komplex weitgehend aus. Er wird     abfiltriert     und getrocknet. Er stellt ein graues Pulver  dar. Vermischt mit     Natriumpyrophosphat,    ist  er glatt wasserlöslich.



  Process for the production of an honorable azo carbate. The subject of the present patent is a process for the production of a chromable azo dye. The process is characterized in that diazotized 5-nitro-2-amino-1-oxy-benzene-4-methylsulfone is combined with 1-ethylamino-7-oxy naphthalene.



  The chromium complex of the new dye obtained is a gray powder which dyes wool from a neutral bath in uniform gray tones with good wet fastness properties. <I> Example: </I> 23.2 parts of 5-nitro-2-amino-1-oxy-benzene-4-methylsulfone, obtainable by saponifying nitro-benzoxazolone-methylsulfone, are in 150 parts of hot water with 17 parts concentrated hydrochloric acid, cooled to <B> 50 </B> and treated with a solution of sodium nitrite (corresponding to 6.9 parts)

       diazotized. The diazonium compound partially precipitates in the form of clay-yellow crystals. By adding sodium bicarbonate, the mixture is made neutral and the slurry is poured into a solution of 21.1 parts of 1-acetyl-ainino-7-oxynaphthalene, 4.8 parts of sodium hydroxide, 12 parts of soda ash and 15 parts of pyridine in 100 parts of water . After the formation of the dye has ended, the dye is isolated at 700 by adding sodium chloride.



  The chromium complex of the dye can be obtained by refluxing it in 500 parts of water with 200 parts of a solution of ammonium oxalato-ammino-chromate (corresponding to 7.6 parts of chromium oxide) until the complex formation is complete. The chromium complex is largely eliminated. It is filtered off and dried. It is a gray powder. Mixed with sodium pyrophosphate, it is completely soluble in water.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines chromier- baren Azofarbstoffes, dadurch gekennzeich net, dass man diazotiertes 5-Nitro-2-amino-l- oxy-benzol-4-methylsulfon mit 1-Aeetylamino- 7-oxy-naphthalin vereinigt. Der Chromkomplex des erhaltenen neuen Farbstoffes stellt ein graues Pulver dar, das \Volle aus neutralem Bade in gleichmässig grauen Tönen von guten Nassechtheiten färbt. PATENT CLAIM: A process for the production of a chromable azo dye, characterized in that diazotized 5-nitro-2-amino-l-oxy-benzene-4-methylsulfone is combined with 1-aetylamino-7-oxy-naphthalene. The chromium complex of the new dye obtained is a gray powder which dyes Volle from a neutral bath in uniform gray tones with good wet fastness properties.
CH265107D 1947-09-19 1947-09-19 Process for the production of a chromable dye. CH265107A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH265107T 1947-09-19
CH261126T 1952-07-16

Publications (1)

Publication Number Publication Date
CH265107A true CH265107A (en) 1949-11-15

Family

ID=25730390

Family Applications (1)

Application Number Title Priority Date Filing Date
CH265107D CH265107A (en) 1947-09-19 1947-09-19 Process for the production of a chromable dye.

Country Status (1)

Country Link
CH (1) CH265107A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922727C (en) * 1951-12-07 1955-01-24 Ciba Geigy Process for the production of monoazo dyes or their metal complex compounds
DE923806C (en) * 1951-12-13 1955-02-21 Ciba Geigy Process for the production of new chromium-containing monoazo dyes
DE954278C (en) * 1952-01-05 1956-12-13 Geigy Ag J R Process for the production of cobalt-containing monoazo dyes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922727C (en) * 1951-12-07 1955-01-24 Ciba Geigy Process for the production of monoazo dyes or their metal complex compounds
DE923806C (en) * 1951-12-13 1955-02-21 Ciba Geigy Process for the production of new chromium-containing monoazo dyes
DE954278C (en) * 1952-01-05 1956-12-13 Geigy Ag J R Process for the production of cobalt-containing monoazo dyes

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