CH86980A - 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
CH86980A
CH86980A CH86980DA CH86980A CH 86980 A CH86980 A CH 86980A CH 86980D A CH86980D A CH 86980DA CH 86980 A CH86980 A CH 86980A
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 CH86980A publication Critical patent/CH86980A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

      Verfahren    zur Herstellung eines zum     Baumwolldruck    besonders geeigneten       Azofarbstoffes.       Es wurde gefunden, dass     inan    durch Kup  peln von     diazötierter        4-Nitro-2-ninido-l-ox3--          benzol-6-carbotisäure    mit     1-Oxynalihtaliti-3-          sulfo-5-carbonsäure    einen     Azofarbstoff    erhält,  welcher sich in Wasser mit roter, in konzen  trierter Schwefelsäure mit blauroter Farbe  löst und auf Baumwolle, nach dem     Chrom-          druckverfthren    bedruckt, seifen-,

   chlor- und  lichtechte     Bordeaux-Tötie    gibt.  



  <I>Beispiel:</I>  Die auf bekannte Art aus 19,8     Teilei          4-Nitro-2-amino-1-oxybenzol-6-earboitsäure     dargestellte     Diazoverbindung    gibt man unter  Rühren zu einer möglichst konzentrierten Lö  sung von 29 Teilen des     Mononatriumsalzes     der     1-Oxynaphtalin-3-sulfo-5-carbonsäure,    40  Teilen Soda und 26 Teilen Natronlauge     ä,    30      %.       Der     kristalliniseh    ausfallende Farbstoff wird  kalt filtriert,     gepi-el)t    und getrocknet.



      Process for the production of an azo dye particularly suitable for cotton printing. It has been found that inan by coupling diazotized 4-nitro-2-ninido-l-ox3-- benzene-6-carbotic acid with 1-oxynalihtaliti-3-sulfo-5-carboxylic acid, an azo dye is obtained, which is obtained with water red, dissolved in concentrated sulfuric acid with a blue-red color and printed on cotton after the chrome printing process, soapy,

   chlorine- and lightfast Bordeaux-Tötie.



  <I> Example: </I> The diazo compound prepared in a known manner from 19.8 parts of 4-nitro-2-amino-1-oxybenzene-6-earboitic acid is added with stirring to a solution of 29 parts of the monosodium salt which is as concentrated as possible of 1-oxynaphthalene-3-sulfo-5-carboxylic acid, 40 parts of soda and 26 parts of sodium hydroxide solution, 30%. The dyestuff which precipitates out in crystalline form is filtered cold, peened and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines zum Baumwolldrucke besonders geeigneten Azo- farbstoffes, welcher sich in Wasser mit roter, in konzentrierter Schwefelsäure mit blauroter Farbe löst und auf Baumwolle, nach dem Chromdruckverfahren bedruckt, ein . seifen-, chlor- und lichtechtes Bordeaux gibt, dadurch gekennzeichnet, dass die Diazoverbindung der 4-Nitro-2 -amido-1-oxybenzol-6-cai@botisäure mit 1-0xynaphtalin-3-sulfo-5-cai@botisäure kom biniert wird. PATENT CLAIM Process for the production of an azo dye particularly suitable for cotton printing, which dissolves in water with red, in concentrated sulfuric acid with bluish-red color and is printed on cotton using the chrome printing process. Soap, chlorine and lightfast Bordeaux gives, characterized in that the diazo compound of 4-nitro-2-amido-1-oxybenzene-6-cai @ botioic acid combined with 1-oxynaphthalene-3-sulfo-5-cai @ botic acid becomes.
CH86980D 1918-05-24 1918-05-24 Process for the production of an azo dye particularly suitable for cotton printing. CH86980A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86026T 1918-05-24
CH86980T 1918-05-24

Publications (1)

Publication Number Publication Date
CH86980A true CH86980A (en) 1920-10-16

Family

ID=25703519

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86980D CH86980A (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) CH86980A (en)

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