CH86986A - 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
CH86986A
CH86986A CH86986DA CH86986A CH 86986 A CH86986 A CH 86986A CH 86986D A CH86986D A CH 86986DA CH 86986 A CH86986 A CH 86986A
Authority
CH
Switzerland
Prior art keywords
production
particularly suitable
azo dye
cotton
carboxylic acid
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 CH86986A publication Critical patent/CH86986A/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)

Description

  

  Verfahren zur Herstellung eines zum Baumwolldruck     besonders    geeigneten  Azofarbstoffes.    Es wurde gefunden, dass man durch Kup  peln von     diazotierter        2-Amino-4-chlor-l-oxy-          betizol-6-carbonsäure    mit     1:8-Dioxynaph-          talin-6-sulfo-3-carbonsäure    einen     Azofarbstoff     erhält, welcher sich in Wasser mit rotvioletter,  in konzentrierter Schwefelsäure mit blaugrüner  Farbe löst und auf Baumwolle,     _    nach dem  Chromdruckverfahren bedruckt, seifen-, chlor  und lichtechte blaue Töne gibt.  



  <I>Beispiel:</I>  Die in möglichst konzentrierter Form dar  gestellte     Diazoverbindung    aus 18,7 Teilen       2-Amino-4-chlor-1-oxybenzol-6-carbonsäure     wird mit einer Lösung von 28,4 Teilen 1:8  Dioxynaphtalin-6-sulfo-3-carbonsäure in 100  Teilen 20 % Kalkmilch vereinigt. Nach be  endigter Kupplung wird     finit    Salzsäure ange  säuert, der ausgeschiedene     Farbstoff    mit Soda    gelöst, von Kreide     abfiltriert,    das Filtrat ge  salzen und der abgeschiedene     Farbstoff    fil  triert und getrocknet.



  Process for the production of an azo dye particularly suitable for cotton printing. It has been found that coupling diazotized 2-amino-4-chloro-1-oxy-betizole-6-carboxylic acid with 1: 8-dioxynaphthalene-6-sulfo-3-carboxylic acid gives an azo dye, which is obtained Dissolves in water with red-violet, in concentrated sulfuric acid with a blue-green color and gives soap, chlorine and lightfast blue tones on cotton, _ printed using the chrome printing process.



  <I> Example: </I> The diazo compound presented in the most concentrated form possible from 18.7 parts of 2-amino-4-chloro-1-oxybenzene-6-carboxylic acid is mixed with a solution of 28.4 parts of 1: 8 dioxynaphthalene -6-sulfo-3-carboxylic acid combined in 100 parts of 20% milk of lime. After coupling is complete, finite hydrochloric acid is acidified, the dyestuff which has separated out is dissolved with soda, filtered off from chalk, the filtrate is salted and the dyestuff separated out is filtered off and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines zum Bauni- wolldrucke besonders geeigneten Azofarb- stoffes, welcher sich in Wasser mit rotvioletter, in konzentrierter Schwefelsäure finit blau grüner Farbe löst und auf Baumwolle, nach dein Cln-onidruclcverfahren bedruckt, ein seifen-, chlor- und lichtechtes Blau gibt, dadurch ge kennzeichnet, dass die Diazoverbindung der 2-Aniino-4-chlor-1-oxybenzol-6-carbonsäure finit 1: PATENT CLAIM: Process for the production of an azo dye particularly suitable for cotton printing, which dissolves in water with a red-violet, finite blue-green color in concentrated sulfuric acid and is printed on cotton using the Cln-onidruclc method, a soap, chlorine and lightfast Blue indicates that the diazo compound of 2-aniino-4-chloro-1-oxybenzene-6-carboxylic acid finite 1: 8-Dioxynaphtalin-6-sulfo-3-carbonsäure kombiniert wird. 8-Dioxynaphthalene-6-sulfo-3-carboxylic acid is combined.
CH86986D 1918-05-24 1918-05-24 Process for the production of an azo dye particularly suitable for cotton printing. CH86986A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH86986T 1918-05-24
CH86026T 1918-05-24

Publications (1)

Publication Number Publication Date
CH86986A true CH86986A (en) 1920-11-01

Family

ID=25703525

Family Applications (1)

Application Number Title Priority Date Filing Date
CH86986D CH86986A (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) CH86986A (en)

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