CH216320A - Process for the production of an acidic wool dye. - Google Patents

Process for the production of an acidic wool dye.

Info

Publication number
CH216320A
CH216320A CH216320DA CH216320A CH 216320 A CH216320 A CH 216320A CH 216320D A CH216320D A CH 216320DA CH 216320 A CH216320 A CH 216320A
Authority
CH
Switzerland
Prior art keywords
production
dye
acidic
wool dye
acidic wool
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 CH216320A publication Critical patent/CH216320A/en

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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    kondensiert.  



  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 blauen Tönen von ausgesprochener       Rotstichigkeit.     



       Beispiel:     40 Teile     1-Amino-4-bromanthrachinon-2-          sulfonsäure    werden in     etwa    4000 Teilen  Wasser gelöst und mit 27 Teilen     m-Amino-          benzyl-methyl-acetamid,    40 Teilen Natrium  bicarbonat und 4     Teilen        Kupferchlorür    ver  setzt. Die Lösung wird mehrere Stunden    auf<B>90-950</B> C erhitzt und nach     Beendigung     der     Farbstoffbildung    der     gebildete        Farbstoff          isoliert.  



  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.



  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 acid baths in clear and very even blue tones with a pronounced reddish tinge.



       Example: 40 parts of 1-amino-4-bromoanthraquinone-2-sulfonic acid are dissolved in about 4000 parts of water and 27 parts of m-amino-benzyl-methyl-acetamide, 40 parts of sodium bicarbonate and 4 parts of copper chloride are added. The solution is heated to 90-950 C for several hours and the dye formed is isolated after the dye formation has ended.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines sauren Wollfarbstoffes, dadurch gekennzeichnet, dass man 1-Amino-4-bromanthrachinon-2-sulfon- säure mit m-Aminobenzyl-methyl-acetamid kondensiert 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, PATENT CLAIM: 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 concentrated sulfuric acid dissolves with a bluish green color, which changes to yellowish green on addition of paraformaldehyde, und färbt Wolle aus saurem Bade in klaren und sehr egalen blauen Tönen von ausgesprochener Rotstichigkeit. and dyes wool from an acid bath in clear and very even blue tones with a pronounced red tinge.
CH216320D 1938-09-30 1939-09-02 Process for the production of an acidic wool dye. CH216320A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE216320X 1938-09-30
CH214184T 1939-09-02

Publications (1)

Publication Number Publication Date
CH216320A true CH216320A (en) 1941-08-15

Family

ID=25725567

Family Applications (1)

Application Number Title Priority Date Filing Date
CH216320D CH216320A (en) 1938-09-30 1939-09-02 Process for the production of an acidic wool dye.

Country Status (1)

Country Link
CH (1) CH216320A (en)

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