CH206722A - Process for the production of a new dye preparation. - Google Patents
Process for the production of a new dye preparation.Info
- Publication number
- CH206722A CH206722A CH206722DA CH206722A CH 206722 A CH206722 A CH 206722A CH 206722D A CH206722D A CH 206722DA CH 206722 A CH206722 A CH 206722A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- new
- dye preparation
- new dye
- dye
- Prior art date
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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/124—Preparation of azo dyes from other azo compounds by acylation of amino groups with monocarboxylic acids, carbamic esters or halides, mono- isocyanates, or haloformic acid esters
-
- 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
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Farbstoffpr äparates. Es wurde gefunden, dass man ein neues, lösliches Farbstoffpräparat erhält, wenn man auf den Azofarbstoff aus diazotiertem 1-Amino- 2,5-diäthoxy-4-aminocarbäthoxybenzol und dem Anilid der 2.3-Oxynaphthoesäure Ben- zoesäure-3-sulfochlorid in Gegenwart von Pyridin einwirken lässt.
Das neue Präparat bildet ein dunkel gefärbtes Pulver, das sich in Wasser mit brauner Farbe löst und auf Zusatz von Alkalien den Ausgangsfarbstoff wieder abscheidet. Es kann zum Färben oder Drucken von Textilien verwendet werden. <I>Beispiel:</I> Man verrührt 27,1 Teile des Kupplungs produktes aus diazotiertem 1-Amino-2,5-di- äthoxy-4-aminocarbäthoxybenzol und 2,3-Oxy- naphthoesäureanilid mit 150 Teilen Pyridin bei 50-55 .
Zum Gemenge streut man 33 Teile Benzoesäure-3-sulfochlorid unter Steigen lassen der Temperatur, und rührt noch einige Zeit bei 110 bis<B>1150.</B> Sobald eine klare, braune Lösung entstanden und eine Probe in Wasser klar löslich geworden ist, lä.sst man das Reaktionsgemisch auf<B>500</B> abkühlen .und destilliert einen Teil des Pyridins im Vakuum ab. Den Rückstand löst man in warmem Wasser, bindet das Pyridin mit Säure, zum Beispiel wässeriger Salzsäure, und fällt das Kondensationsprodukt mit aussalzenden Mit teln, zum Beispiel Natriumchlorid.
Process for the production of a new dye preparation. It has been found that a new, soluble dye preparation is obtained if the azo dye of diazotized 1-amino-2,5-diethoxy-4-aminocarbethoxybenzene and the anilide of 2,3-oxynaphthoic acid is benzoic acid-3-sulfochloride in the presence of Lets pyridine act.
The new preparation forms a dark-colored powder that dissolves in water with a brown color and, when alkalis are added, redeposits the original pigment. It can be used for dyeing or printing textiles. <I> Example: </I> 27.1 parts of the coupling product of diazotized 1-amino-2,5-diethoxy-4-aminocarbethoxybenzene and 2,3-oxynaphthoic anilide are stirred with 150 parts of pyridine at 50% 55.
33 parts of benzoic acid-3-sulfochloride are sprinkled onto the mixture, while the temperature is allowed to rise, and the mixture is stirred for some time at 110 to 1150. As soon as a clear, brown solution has formed and a sample has become clearly soluble in water , the reaction mixture is allowed to cool to <B> 500 </B> and some of the pyridine is distilled off in vacuo. The residue is dissolved in warm water, the pyridine is bound with acid, for example aqueous hydrochloric acid, and the condensation product is precipitated with salting-out agents, for example sodium chloride.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH206722T | 1938-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH206722A true CH206722A (en) | 1939-08-31 |
Family
ID=4445185
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH206722D CH206722A (en) | 1938-07-02 | 1938-07-02 | Process for the production of a new dye preparation. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH206722A (en) |
-
1938
- 1938-07-02 CH CH206722D patent/CH206722A/en unknown
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