CH86985A - Process for the production of an azo dye particularly suitable for cotton printing. - Google Patents

Process for the production of an azo dye particularly suitable for cotton printing.

Info

Publication number
CH86985A
CH86985A CH86985DA CH86985A CH 86985 A CH86985 A CH 86985A CH 86985D A CH86985D A CH 86985DA CH 86985 A CH86985 A CH 86985A
Authority
CH
Switzerland
Prior art keywords
production
particularly suitable
azo dye
cotton
printing
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH86985A publication Critical patent/CH86985A/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
    • C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
    • C09B29/16—Naphthol-sulfonic acids
    • 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

Landscapes

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

Description

  

      Verfahren    zur Herstellung eines zum     Baumwolldruck    besonders geeigneten     -Azofarbstoffes.       Es wurde gefunden, dass man     durch    Kup  peln von     diazotierteni        2-Ainino-6-nitro-4-          methyl-l-oxybenzol        finit    1     :

  8-Dioxynaplitalin-          6-sulfo-3-carbonsäure    einen     Azofarbstoff    er  hält, welcher sich in Wasser mit violetter,  in konzentrierter Schwefelsäure mit blauer  Farbe löst und auf Baumwolle, nach dein       Chromdruckverfahren    bedruckt, seifen-, chlor  undlichtechte blaue Töne gibt.  



       Beispiel:     Die in möglichst konzentrierter Form dar  gestellte     Diazoverbindung    aus 16;6 Teilen       2-Amiiio-6-nitro-4-rnethyl-l-oxybenzol    wird  mit einer Lösung von 28,4 Teilen 1 :     8-Dioxy-          iiaphtalin-6-sulfo-3-carbonsäare    in 100     Teileis          20"/,    Kalkmilch vereinigt. Nach beendigter  Kupplung wird mit Salzsäure angesäuert, der  ausgeschiedene Farbstoff mit Soda gelöst,  von Kreide     abfiltriert,    das Filtrat gesalzen    und der abgeschiedene Farbstoff filtriert und  getrocknet.



      Process for the production of an azo dye particularly suitable for cotton printing. It has been found that by coupling diazotized 2-ainino-6-nitro-4-methyl-l-oxybenzene finite 1:

  8-Dioxynaplitalin- 6-sulfo-3-carboxylic acid is an azo dye that dissolves in water with violet, in concentrated sulfuric acid with blue color and on cotton, printed using the chrome printing process, gives soap, chlorine and lightfast blue tones.



       Example: The diazo compound presented in the most concentrated form possible from 16; 6 parts of 2-amino-6-nitro-4-methyl-1-oxybenzene is mixed with a solution of 28.4 parts of 1: 8-dioxy-iiaphthalene-6-sulfo -3-carboxylic acids are combined in 100 parts of 20 "/, milk of lime. After coupling is complete, it is acidified with hydrochloric acid, the precipitated dye is dissolved with soda, filtered off from chalk, the filtrate is salted and the separated dye is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zurHerstellung eines zum Baum- wolldrucke besonders geeigneten Azofarb- stoffes, welcher sich in Wasser mit violetter, in konzentrierter Schwefelsäure mit blauer Farbe löst und auf Baumwolle, nach dem Chromdruckverfahren bedruckt, ein seifen-, chlor- und lichtechtes Blau gibt, dadurch ge kennzeichnet, PATENT CLAIM: Process for the production of an azo dye particularly suitable for cotton printing, which dissolves in water with violet, in concentrated sulfuric acid with blue color and gives cotton, printed according to the chrome printing process, a soap, chlorine and lightfast blue marked, dah clie Diazoverbindung des 2-Anlino-6-nitro-4-methyl-l-oxybenzols finit 1 : 8 -1>ioxynaplitaliri - 6 - sulfo - 3 - carbonsäui-e kombiniert wird. then the diazo compound of 2-anlino-6-nitro-4-methyl-1-oxybenzene finite 1: 8-1> ioxynaplitaliri - 6 - sulfo - 3 - carboxylic acid is combined.
CH86985D 1918-05-24 1918-05-24 Process for the production of an azo dye particularly suitable for cotton printing. CH86985A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86026T 1918-05-24
CH86985T 1918-05-24

Publications (1)

Publication Number Publication Date
CH86985A true CH86985A (en) 1920-10-16

Family

ID=25703524

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86985D CH86985A (en) 1918-05-24 1918-05-24 Process for the production of an azo dye particularly suitable for cotton printing.

Country Status (1)

Country Link
CH (1) CH86985A (en)

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