CH190321A - Process for the production of a new azo dye. - Google Patents

Process for the production of a new azo dye.

Info

Publication number
CH190321A
CH190321A CH190321DA CH190321A CH 190321 A CH190321 A CH 190321A CH 190321D A CH190321D A CH 190321DA CH 190321 A CH190321 A CH 190321A
Authority
CH
Switzerland
Prior art keywords
production
azo dye
new azo
new
parts
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 CH190321A publication Critical patent/CH190321A/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
    • C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
    • C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series

Landscapes

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

Description

  

  <B>Zusatzpatent</B> zum Hauptpatent Nr. 186550.    Verfahren zur     Herstellung    eines neuen     Azofarbstoffes.       Es wurde gefunden, dass     man    einen neuen       Azofarbstoff    erhält, wenn man     diazotiertes          1-Aminobenzol-2-dimethylsulfainid    mit 2. 3  Oxynaphthoesäure - 2', 5' -     dimethoxy-4'-chlor-          anilid    vereinigt. Der neue Farbstoff bildet  ein scharlachrotes, in Wasser unlösliches  Pulver. Auf geeigneten Substraten, wie zum  Beispiel Zellulose, hergestellt, färbt er diese  in rotorangen Tönen von sehr guten Echt  heitseigenschaften.  



       Beispiel:     20 Teile 1     Aminobenzol-2-dimethylsulf-          amid    werden mit 40 Teilen     konz.    Salzsäure  und 200 Teilen Wasser verrührt und mit  einer Lösung von 7 Teilen     Natriumnitrit    in  üblicher Weise     diazotiert.    Die klare     Diazo-          lösung    lässt man in eine Lösung von 35,7 Tei  len 2. 3 -     Oxynaphthoesäure-2',5'-dimethoxy-          4'-chloranilid    in 40 Teilen 30 %     iger    Natrium-         hydroxydlösung    und 1000 Teilen Wasser  einlaufen.  



  Der gebildete Farbstoff fällt sofort aus  als scharlachrot gefärbter Niederschlag. Er       wird        filtriert    und getrocknet.



  <B> Additional patent </B> to main patent No. 186550. Process for the production of a new azo dye. It has been found that a new azo dye is obtained when diazotized 1-aminobenzene-2-dimethylsulfainide is combined with 2, 3-oxynaphthoic acid - 2 ', 5' - dimethoxy-4'-chloroanilide. The new dye forms a scarlet powder that is insoluble in water. Produced on suitable substrates, such as cellulose, for example, it colors them in red-orange tones with very good fastness properties.



       Example: 20 parts of 1 aminobenzene-2-dimethylsulfamide are mixed with 40 parts of conc. Stirred hydrochloric acid and 200 parts of water and diazotized in the usual way with a solution of 7 parts of sodium nitrite. The clear diazo solution is allowed to run into a solution of 35.7 parts of 2,3-oxynaphthoic acid-2 ', 5'-dimethoxy-4'-chloroanilide in 40 parts of 30% sodium hydroxide solution and 1000 parts of water.



  The dye formed falls out immediately as a scarlet colored precipitate. It is filtered and dried.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Azofarbstoffes, dadurch gekennzeichnet, dass man diazotiertes 1-Aminobenzol-2-dimethyl- sulfamid mit 2. 3-Oxynaphthoesäure-2',5.'-di- methoxy-4'-chloranilid vereinigt. Der neue Farbstoff bildet ein scharlach rotes, in Wasser unlösliches Pulver. Auf ge eigneten Substanzen, wie zum Beispiel Zel lulose, hergestellt, färbt er diese in rotorangen Tönen von sehr guten Echtheitseigenschaften. PATENT CLAIM: Process for the production of a new azo dye, characterized in that diazotized 1-aminobenzene-2-dimethylsulfamide is combined with 2. 3-oxynaphthoic acid-2 ', 5'-dimethoxy-4'-chloranilide. The new dye forms a scarlet red powder that is insoluble in water. Manufactured on suitable substances such as cellulose, he dyes them in red-orange tones with very good fastness properties.
CH190321D 1936-01-17 1936-01-17 Process for the production of a new azo dye. CH190321A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH190321T 1936-01-17
CH186550T 1936-01-17

Publications (1)

Publication Number Publication Date
CH190321A true CH190321A (en) 1937-04-15

Family

ID=25721380

Family Applications (1)

Application Number Title Priority Date Filing Date
CH190321D CH190321A (en) 1936-01-17 1936-01-17 Process for the production of a new azo dye.

Country Status (1)

Country Link
CH (1) CH190321A (en)

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