CH216324A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH216324A
CH216324A CH216324DA CH216324A CH 216324 A CH216324 A CH 216324A CH 216324D A CH216324D A CH 216324DA CH 216324 A CH216324 A CH 216324A
Authority
CH
Switzerland
Prior art keywords
dye
production
condensed
acidic
acid
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 CH216324A publication Critical patent/CH216324A/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
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/32—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups
    • C09B1/34—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated
    • C09B1/343—Dyes with amino groups substituted by hydrocarbon radicals substituted by aryl groups sulfonated only sulfonated in the anthracene nucleus

Landscapes

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

Description

  

  Verfahren zur Herstellung eines sauren     Wollfarbstoffes.       Vorliegendes Patent bezieht sich auf ein  Verfahren zur Herstellung eines sauren     Woll-          farbstoffes,    dadurch gekennzeichnet, dass man  1-     Amino    - 4 -     bromanthrachinon-    2 -     sulfonsäure     mit     m-Aminobenzyl-methyl-acetamid    konden  siert und in dem erhaltenen Kondensations  produkt die     Acylgruppe    durch Behandlung  mit verseifenden Mitteln abspaltet.  



  Der so erhaltene Farbstoff stellt ein dun  kelblaues Pulver dar, das sich in konzen  trierter Schwefelsäure mit     blaustichiggrüner     Farbe löst, die auf Zusatz von     Paraform-          aldehyd    nach     Gelbstichiggrün    umschlägt, und  färbt Wolle aus saurem Bade in klaren und  sehr egalen     rotstichig    blauen Tönen von  guter Lichtechtheit.

           Beispiel:       40 Teile     1-Amino-4-bromanthrachinon-2-          sulfonsäure    werden in etwa 4000 Teilen Was  ser gelöst und mit 27 Teilen     m-Aminobenzyl-          methyl-acetamid,    40 Teilen     Natriumbicarbonat       und 4     Teilen        Kupferchlorür    versetzt. Die  Lösung wird mehrere Stunden auf 90-95   C  erhitzt und nach     Beendigung    der Farbstoff  bildung der gebildete Farbstoff isoliert.  



  Eine Suspension von 30 Teilen des obigen       Farbstoffes    und 800 Teilen     Alkohol        wird     unter     Einleiten    von     Chlorwasserstoffgas    etwa  8 Stunden zum Sieden erhitzt. Nachdem vor  übergehend     Lösung    eingetreten ist, beginnt  bald die     Abscheidung    des     salzsauren        Salzes     des gebildeten neuen     Farbstoffes,    der keine       Acylgruppe    mehr enthält.

   Das Reaktions  produkt wird heiss abgesaugt     und    mit Salz  wasser von<B>15'</B>     B6        säurefrei    gewaschen. Es  wird dann noch zweckmässig durch Aussahen  aus     sodaalkalischer    wässeriger Lösung     in    das       Natriumsalz    übergeführt.



  Process for the production of an acidic wool dye. The present patent relates to a process for the production of an acidic wool dye, characterized in that 1-amino-4-bromoanthraquinone-2-sulfonic acid is condensed with m-aminobenzyl-methyl-acetamide and the acyl group is passed through in the condensation product obtained Treatment with saponifying agents splits off.



  The dye thus obtained is a dark blue powder that dissolves in concentrated sulfuric acid with a bluish green color, which changes to yellowish green on addition of paraformaldehyde, and dyes wool from an acid bath in clear and very even reddish blue shades of good lightfastness .

           Example: 40 parts of 1-amino-4-bromoanthraquinone-2-sulfonic acid are dissolved in about 4000 parts of water, and 27 parts of m-aminobenzyl-methyl-acetamide, 40 parts of sodium bicarbonate and 4 parts of copper chloride are added. The solution is heated to 90-95 ° C. for several hours and, after the formation of the dye, the dye formed is isolated.



  A suspension of 30 parts of the above dye and 800 parts of alcohol is heated to boiling for about 8 hours while passing in hydrogen chloride gas. After a temporary solution has occurred, the deposition of the hydrochloric acid salt of the new dye that has formed, which no longer contains an acyl group, soon begins.

   The reaction product is suctioned off while hot and washed acid-free with salt water of <B> 15 '</B> B6. It is then expediently converted into the sodium salt by looking out from an aqueous solution of soda-alkali.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4 -bromanthrachinon- 2 -sulfon- säure mit m-rlminobenzyl-methyl-acetamid kondensiert und in dem erhaltenen Konden sationsprodukt die Acy lgruppe durch Behand lung mit verseifenden Mitteln abspaltet. Claim: Process for the production of an acidic wool dye, characterized in that 1-amino-4-bromoanthraquinone-2-sulfonic acid is condensed with m-rlminobenzyl-methyl-acetamide and the acyl group in the condensation product obtained is condensed by treatment with saponifying agents Means splitting off. Der so erhaltene Farbstoff stellt ein dun kelblaues Pulver dar, das sich in konzen trierter Schwefelsäure mit blaustichiggrüner Farbe löst, die auf Zusatz von Paraforan- aldehyd nach Gelbstichiggrün umschlägt, und färbt Wolle aus saurem Bade in klaren und sehr egalen rotstichig blauen Tönen von guter Lichtechtheit. The dye thus obtained is a dark blue powder that dissolves in concentrated sulfuric acid with a bluish green color, which changes to yellowish green on addition of paraforanaldehyde, and dyes wool from an acid bath in clear and very even reddish blue shades of good lightfastness .
CH216324D 1939-06-05 1939-09-02 Process for the production of an acidic wool dye. CH216324A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216324X 1939-06-05
CH214184T 1939-09-02

Publications (1)

Publication Number Publication Date
CH216324A true CH216324A (en) 1941-08-15

Family

ID=25725571

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216324D CH216324A (en) 1939-06-05 1939-09-02 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH216324A (en)

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