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CH200370A - Process for the preparation of a chromable o-oxydisazo dye. - Google Patents

Process for the preparation of a chromable o-oxydisazo dye.

Info

Publication number
CH200370A
CH200370A CH200370DA CH200370A CH 200370 A CH200370 A CH 200370A CH 200370D A CH200370D A CH 200370DA CH 200370 A CH200370 A CH 200370A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
diazotized
oxydisazo
chromable
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH200370A publication Critical patent/CH200370A/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
    • C09B45/24—Disazo or polyazo compounds
    • C09B45/26—Disazo or polyazo 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
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups

Landscapes

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

Description

  

  Verfahren zur Darstellung eines     chromierbaren        o-Ogydisazofarbstoffes.       Es wurde gefunden,     .dass    man     wertvolle,     lichtechte,     ohromierbare    o -     Oxydisazofarb-          stoffe    erhält,

   wenn man die     Monoazofarb-          stoffe    aus aromatischen     Diazosulfonsäuren     oder     -carbonsäuren    und     m-Amino-p-kresol          diazotiert    und mit     N-Alkyl-        bezw.        N-Aryl-          derivaten    der     1-Amino-8-oxynaphthalin-4-          sulfonsäure    kombiniert.  



  Gegenstand des vorliegenden     Patentes    ist  ein Verfahren zur Darstellung eines     clhro-          mierbaren        o-Oxydisazofarbstoffes,    dadurch  gekennzeichnet, dass man .den aus     diazotierter          Sulfanilsäure    und     m-Amino-p-kresol    erhält  lichen     Monoazofarbstoff        diazotiert    und die  so erhaltene     Diazoverbindung    mit     1-Phenyl-          amino-8-oxynaphthalin-4-sulfonsäure    kuppelt.  



  Der neue Farbstoff, ein     dunkles    Pulver,  löst sich in Wasser mit blauer und     in    kon  zentrierter Schwefelsäure mit grüner Farbe.  Er färbt Wolle sauer in blauen, nach  chromiert in     echten,        gelbstichig    grünen  Tönen.

      <I>Beispiel:</I>  30,7 Teile des aus     diazotierter        Sulfanil-          säure    und     m-Amino-p-kresol    erhaltenen       Monoazofarbstoffes    werden in Wasser mit  6 Teilen     calc.    Soda gelöst, mit 7 Teilen       Nitrit    versetzt und mit Salzsäure in üblicher  Weise     angesäuert.    Die     Diazotierung        ist    bald  zu Ende.

   Den braungelben     Diazokörper     gibt man zu einer     sodaalkalis        lhen    Lösung  von 32 Teilen     1-Phenylamino-8-oxynaplhtha-          lin-4-sulfonsäure,    die 15     Volumprozent        Pyri-          din    enthält. Die     Kombination    ist     in    wenigen  Stunden beendet. Der neue Farbstoff wird  wie üblich     abfiltriert    und getrocknet; er  stellt ein .dunkles Pulver dar, das sich in  Wasser mit blauer und in     konzentrierter     Schwefelsäure mit grüner Farbe löst.

   Er       färbt    Wolle sauer in blauen,     naohohromiert     in echten,     gelbstichig    grünen Tönen.



  Process for the preparation of a chromable o-ogydisazo dye. It has been found that valuable, lightfast, aurable o-oxydisazo dyes are obtained,

   if you diazotized the monoazo dyes from aromatic diazosulfonic acids or carboxylic acids and m-amino-p-cresol and with N-alkyl or. N-aryl derivatives of 1-amino-8-oxynaphthalene-4-sulfonic acid combined.



  The subject of the present patent is a process for the preparation of a chromable o-oxydisazo dye, characterized in that the monoazo dye obtained from diazotized sulfanilic acid and m-amino-p-cresol is diazotized and the diazo compound thus obtained is diazotized with 1-phenylamino -8-oxynaphthalene-4-sulfonic acid couples.



  The new dye, a dark powder, dissolves in water with a blue color and in concentrated sulfuric acid with a green color. It dyes wool sour in blue, after chroming in real, yellowish green tones.

      <I> Example: </I> 30.7 parts of the monoazo dye obtained from diazotized sulfanilic acid and m-amino-p-cresol are calcined in water with 6 parts. Dissolved soda, mixed with 7 parts of nitrite and acidified with hydrochloric acid in the usual way. The diazotization will soon end.

   The brown-yellow diazo body is added to a soda-alkaline solution of 32 parts of 1-phenylamino-8-oxynaplhthalin-4-sulfonic acid which contains 15 percent by volume of pyridine. The combination is finished in a few hours. The new dye is filtered off and dried as usual; it is a dark powder that dissolves in water with a blue color and in concentrated sulfuric acid with a green color.

   He dyes wool sour in blue, naohohromiert in real, yellowish green tones.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines ohromier- baren o-Oxy-,disazofarbstoffes, dadurch ge- kennzeichnet, dass man den aus diazotierter Sulfanilsäure und m-Amino-p-kresol erhält lichen Monoazofarbstoff diazotiert und die so erhaltene Diazoverbindung mit 1-Phenyl- amino-8-oxynaphthalin-4-sulfonsäure kuppelt. PATENT CLAIM: A process for the preparation of an o-oxy-, disazo-dye which can be made into an ear, characterized in that the monoazo dye obtained from diazotized sulfanilic acid and m-amino-p-cresol is diazotized and the diazo compound obtained in this way with 1-phenylamino -8-oxynaphthalene-4-sulfonic acid couples. Der neue Farbstoff, ein dunkles Pulver, löst ,sich in Wasser mit blauer und in conc. Schwefelsäure mit grüner Farbe. Er färbt Wolle sauer in blauen, nachchromiert in echten .gelbstichig grünen Tönen. The new dye, a dark powder, dissolves, dissolves in water with blue and in conc. Sulfuric acid with green color. It dyes wool sourly in blue, then chrome-plated in real, yellowish green tones.
CH200370D 1937-09-07 1937-09-07 Process for the preparation of a chromable o-oxydisazo dye. CH200370A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH200370T 1937-09-07

Publications (1)

Publication Number Publication Date
CH200370A true CH200370A (en) 1938-10-15

Family

ID=4442278

Family Applications (1)

Application Number Title Priority Date Filing Date
CH200370D CH200370A (en) 1937-09-07 1937-09-07 Process for the preparation of a chromable o-oxydisazo dye.

Country Status (1)

Country Link
CH (1) CH200370A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074885A1 (en) 2002-03-04 2003-09-12 Prospective Concepts Ag Pneumatic actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074885A1 (en) 2002-03-04 2003-09-12 Prospective Concepts Ag Pneumatic actuator

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