CH265103A - Process for the production of a chromable dye. - Google Patents

Process for the production of a chromable dye.

Info

Publication number
CH265103A
CH265103A CH265103DA CH265103A CH 265103 A CH265103 A CH 265103A CH 265103D A CH265103D A CH 265103DA CH 265103 A CH265103 A CH 265103A
Authority
CH
Switzerland
Prior art keywords
dye
production
parts
oxy
benzene
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 CH265103A publication Critical patent/CH265103A/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    Farbstoffes.    Gegenstand vorliegenden Patentes ist ein  Verfahren zur Herstellung eines     chromier-          baren    Farbstoffes. Das Verfahren ist dadurch  gekennzeichnet, dass man     diazotiertes        2-Amino-          1-oxy-benzol-4-methylsulfon    mit     3,4-Dimethyl-          1-oxy-benzol    vereinigt.  



  Der Chromkomplex des erhaltenen neuen  Farbstoffes stellt ein braunes Pulver dar, das  Wolle aus organisch saurem Bade in vollen  rotbraunen Tönen von guter Gleichmässigkeit,  von sehr guten     Nasseehtheiten    und     guter     Lichtechtheit. färbt.  



  <I>Beispiel:</I>  Man     diazotiert    18,7 Teile     2-Amino-l-oxy-          benzol-4-methylsulfon    und kuppelt nach Neu  tralisieren mit     Natriumbicarbonat    bei 200 mit  einer Lösung von 12,8 Teilen     3,4-Dimethyl-l-          oxy-benzol,    15 Teilen wasserfreier Soda, 4,2  Teilen     Natriumhy        droxyd    (als 30 %     ige    Lösung)  und 20 Teilen     Pyridin    in 200 Teilen Wasser.

    Der fast vollständig ausgefallene Farbstoff  wird     abfiltriert.       Der Chromkomplex des Farbstoffes kann  erhalten werden, indem man diesen in 600 Tei  len Wasser     anschlämmt    und dann während  5 Stunden mit 200 Teilen einer Lösung von       ehromsalicylsaurem    Ammonium (entsprechend  7,6 Teilen Chromoxyd) unter     Rückfluss    kocht.  Danach salzt man mit 210 Teilen Kochsalz  aus, filtriert den ausgeschiedenen Komplex  nach Erkalten ab, trocknet und     vermischt    ihn  mit 17 Teilen     Tetranatriumpyrophosphat.  



  Process for the production of an honorable dye. The subject of the present patent is a process for the production of a chromable dye. The process is characterized in that diazotized 2-amino-1-oxy-benzene-4-methylsulfone is combined with 3,4-dimethyl-1-oxy-benzene.



  The chromium complex of the new dye obtained is a brown powder, the wool from an organically acidic bath in full red-brown tones of good uniformity, very good wet fastness and good lightfastness. colors.



  <I> Example: </I> 18.7 parts of 2-amino-1-oxybenzene-4-methylsulfone are diazotized and, after neutralization with sodium bicarbonate at 200, it is coupled with a solution of 12.8 parts of 3,4-dimethyl -l-oxy-benzene, 15 parts of anhydrous soda, 4.2 parts of sodium hydroxide (as a 30% solution) and 20 parts of pyridine in 200 parts of water.

    The almost completely precipitated dye is filtered off. The chromium complex of the dye can be obtained by slurrying it in 600 parts of water and then refluxing it for 5 hours with 200 parts of a solution of ammonium salicylic acid (corresponding to 7.6 parts of chromium oxide). It is then salted out with 210 parts of sodium chloride, the complex which has precipitated out is filtered off after cooling, dried and mixed with 17 parts of tetrasodium pyrophosphate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines ehromier- baren Farbstoffes, dadurch gekennzeichnet, dass man diazotiertes 2-Amino-l-oxy-benzol-4- methylsulfon mit 3,4-Dimethyl-l-oxy-benzol vereinigt. Der Chromkomplex des erhaltenen neuen Farbstoffes stellt ein braunes Pulver dar, das Wolle aus organisch saurem Bade in vollen rotbraunen Tönen von guter Gleichmässigkeit, von sehr guten Nassechtheiten und guter Lichtechtheit färbt. PATENT CLAIM: Process for the production of an honorable dye, characterized in that diazotized 2-amino-1-oxy-benzene-4-methylsulfone is combined with 3,4-dimethyl-1-oxy-benzene. The chromium complex of the new dye obtained is a brown powder which dyes wool from an organically acidic bath in full red-brown shades of good uniformity, very good wet fastness properties and good light fastness.
CH265103D 1947-09-19 1947-09-19 Process for the production of a chromable dye. CH265103A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH265103T 1947-09-19
CH261126T 1952-07-16

Publications (1)

Publication Number Publication Date
CH265103A true CH265103A (en) 1949-11-15

Family

ID=25730386

Family Applications (1)

Application Number Title Priority Date Filing Date
CH265103D CH265103A (en) 1947-09-19 1947-09-19 Process for the production of a chromable dye.

Country Status (1)

Country Link
CH (1) CH265103A (en)

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