CH224129A - Process for the preparation of a primary disazo dye. - Google Patents

Process for the preparation of a primary disazo dye.

Info

Publication number
CH224129A
CH224129A CH224129DA CH224129A CH 224129 A CH224129 A CH 224129A CH 224129D A CH224129D A CH 224129DA CH 224129 A CH224129 A CH 224129A
Authority
CH
Switzerland
Prior art keywords
amino
dye
preparation
disazo dye
diazo compound
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 CH224129A publication Critical patent/CH224129A/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
    • C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
    • C09B33/02—Disazo dyes
    • C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
    • C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol

Landscapes

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

Description

  

  Verfahren zur Herstellung eines     primären        Bisazofarbstofes.       Vorliegendes Patent bezieht sich auf  ein Verfahren zur     Herstellung    eines primä  ren     Disazofarbstoffes,    dadurch gekennzeich  net,     :dass    man :die     Diazoverbindung    von     1-          Amino-@2,5-,di:chlorbe@nzol    in saurem Medium  mit     1-Amino-8-ogynaphthalin-3;6-:disulfon-          säure    und den so erhaltenen     Monoazofarb-          stoff    in alkalischem Medium mit :

  der     Diazo-          verbindu,ng    aus     1-Amino-4-N-:cyclohegyl-          caprinyl-aminobenzol    vereinigt.  



  Der so erhaltene     Disazofarbstoff    ist ein  dunkles Pulver, das sieh in Wasser mit  blauer, in konzentrierter Schwefelsäure mit       rotstichig    schwarzer Farbe löst, und färbt  Wolle aus saurem Bade in     schwarzen    Tönen.  Die     Färbungen    besitzen sehr gute Wasch-,  Walk-, Schweiss-,     'Seewasser-,        Dekatur-    und       Lichtechtheit.     



  <I>Beispiel:</I>  Eine aus 16,2 Teilen     1-Amino-2i5-:dichlor-          benzol        hergestellte        Diazolösung    lässt man in    eine mineralsaure Lösung von 31,9 Teilen       1-Amino    - 8 -     ogynaplhthalin-    3, 6     --disulfonsäure     laufen.

   Nach beendeter Bildung :des     Mono-          azofarbs@toffes        wird.die'ser    abgeschieden und  mit     überschüssigem        Natriumcarbonat    wieder  in Lösung     gebracht.    In diese Lösung lässt  man eine aus 34,4 Teilen     1-Amiuo-4-N-:cyclo-          hegyl-caprinyl-aminobenzol        hergestellte        Di-          azolösun.g    fliessen. Der     Dieazofarbstoff    wird       albgeschieden,    gewaschen und     getrocknet.  



  Process for the preparation of a primary disazo dye. The present patent relates to a process for the preparation of a primary disazo dye, characterized in that: the diazo compound of 1- amino- @ 2,5-, di: chlorbe @ nzol in an acidic medium with 1-amino-8- ogynaphthalene-3; 6-: disulfonic acid and the resulting monoazo dye in an alkaline medium with:

  the diazo compound from 1-amino-4-N-: cyclohegyl-caprinyl-aminobenzene combined.



  The disazo dye thus obtained is a dark powder that dissolves in water with a blue color, in concentrated sulfuric acid with a reddish black color, and dyes wool from acid baths in black tones. The dyeings have very good wash, fulling, perspiration, seawater, decatur and lightfastness.



  <I> Example: </I> A diazo solution prepared from 16.2 parts of 1-amino-2i5-: dichlorobenzene is left in a mineral acid solution of 31.9 parts of 1-amino - 8 - ogynaplhthalin- 3, 6 - -disulfonic acid run.

   When the formation of the monoazo dye is complete, it is deposited and redissolved with excess sodium carbonate. A diazo solution prepared from 34.4 parts of 1-amino-4-N-: cyclo-hegyl-caprinyl-aminobenzene is allowed to flow into this solution. The azo dye is separated, washed and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines primä ren Disazofarbotoffes, dadurchgekennzeich net, @dass man die Diazoverbindung von 1- Amin.o-2,5-,dichlorbenzol in saurem Medium mit 1-Amino -,8 - ogynap:hthalin-3, 6-:disulf on- säure und :den so erhaltenen :Monoazofarb- sto.ff in alkalischem Medium, mit : PATENT CLAIM: Process for the production of a primary disazo-carbotoff, characterized in that the diazo compound of 1- amine-2,5-, dichlorobenzene in an acidic medium with 1-amino-, 8-ogynap: hthalin-3, 6- : disulfonic acid and: the so obtained: monoazo dye.ff in an alkaline medium, with: der Diazo- verbindung aus 1-Amino-4-N-,cyclohegyl- caprinyl-aminobenzol vereinigt. Der so erhaltene Diazofarbstoff ist ein dunkles Pulver, das sich in Wasser mit blauer, in konzentrierter Schwefelsäure mit rotstichig schwarzer Farbe löst, und färbt Wolle aus saurem Bade in schwarzen Tö nen. Die Färbungen besitzen sehr gute Wasch-, Walk-, Schweiss-, Seewasser-, Deka tu:r- und Liehtechtheit. the diazo compound from 1-amino-4-N-, cyclohegyl-caprinyl-aminobenzene combined. The disazo dye thus obtained is a dark powder which dissolves in water with a blue color, in concentrated sulfuric acid with a reddish black color, and dyes wool from an acid bath in black tones. The dyeings have very good fastness to washing, fulling, perspiration, seawater, decatu: r and lightness.
CH224129D 1940-09-07 1941-07-18 Process for the preparation of a primary disazo dye. CH224129A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE224129X 1940-09-07
CH221927T 1941-07-18

Publications (1)

Publication Number Publication Date
CH224129A true CH224129A (en) 1942-10-31

Family

ID=25726571

Family Applications (1)

Application Number Title Priority Date Filing Date
CH224129D CH224129A (en) 1940-09-07 1941-07-18 Process for the preparation of a primary disazo dye.

Country Status (1)

Country Link
CH (1) CH224129A (en)

Similar Documents

Publication Publication Date Title
CH242500A (en) Process for the preparation of a copper-compatible polyazo dye.
CH224129A (en) Process for the preparation of a primary disazo dye.
DE1644096A1 (en) Process for the preparation of monoazo dyes
CH224127A (en) Process for the preparation of a primary disazo dye.
CH224126A (en) Process for the preparation of a primary disazo dye.
DE728886C (en) Process for the preparation of copper complex compounds of substantive azo dyes
DE959396C (en) Process for the preparation of disazo dyes
DE656487C (en) Process for the preparation of o-oxyazo dyes
CH275801A (en) Process for the preparation of a metallizable monoazo dye.
CH216117A (en) Process for the preparation of an azo dye.
CH192049A (en) Process for the production of a new azo dye.
CH131503A (en) Process for the production of a new chromium-containing azo dye.
CH221200A (en) Process for the preparation of an azo dye.
CH224128A (en) Process for the preparation of a primary disazo dye.
CH216113A (en) Process for the preparation of an azo dye.
CH197279A (en) Process for the preparation of an azo dye.
CH166664A (en) Process for the preparation of an o-oxyazo dye.
CH224351A (en) Process for the preparation of an azo dye.
CH166667A (en) Process for the preparation of an o-oxyazo dye.
CH216115A (en) Process for the preparation of an azo dye.
CH216116A (en) Process for the preparation of an azo dye.
CH197281A (en) Process for the preparation of an o-oxyazo dye.
CH221199A (en) Process for the preparation of an azo dye.
CH192981A (en) Process for the preparation of an azo dye which is capable of forming metal compounds.
CH199368A (en) Process for the preparation of an azo dye.