CH86984A - 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
- CH86984A CH86984A CH86984DA CH86984A CH 86984 A CH86984 A CH 86984A CH 86984D A CH86984D A CH 86984DA CH 86984 A CH86984 A CH 86984A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- particularly suitable
- azo dye
- cotton
- printing
- 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
- 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
-
- 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
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 4-Cblor-2-aniino-l-oxy- benzol-6-carbonsäure mit 1-Oxynaphtalin-3- sulfo-5-carbonsäure einen Azofarbstoff erhält, welcher sich in Wasser mit roter, in konzen trierter Schwefelsäure mit violetter Farbe löst und auf Baumwolle, nach dem Chrom druckverfahren bedruckt, seifen-, chlor- und lichtechte violette Töne gibt.
Beispiel: Die auf bekannte Art aus 18,7 Teilen 4-Chlor-2-amino-1-oxybenzol-6-carbonsäure dargestellte Diazoverbindung gibt man unter Rühren zii einer möglichst konzentrierten Lö sung von 29 Teilen des Mononatriumsalzes der 1-Ogynaphtalin-3-sulfo-5-carbonsäure, 40 Teilen Soda und 26 Teilen Natronlauge ä 30 ,"o. Der kristallinisch ausfallende Farb- stoff wird kalt filtriert, gepresst und getrocknet.
Process for the production of an azo dye particularly suitable for cotton printing. It has been found that by coupling diazotized 4-chloro-2-aniino-1-oxybenzene-6-carboxylic acid with 1-oxynaphthalene-3-sulfo-5-carboxylic acid, an azo dye is obtained which turns red in water , dissolves in concentrated sulfuric acid with a violet color and, printed on cotton using the chrome printing process, gives soap, chlorine and lightfast violet tones.
Example: The diazo compound prepared in a known manner from 18.7 parts of 4-chloro-2-amino-1-oxybenzene-6-carboxylic acid is added with stirring to a solution of 29 parts of the monosodium salt of 1-Ogynaphtalin-3- as concentrated as possible sulfo-5-carboxylic acid, 40 parts of soda and 26 parts of sodium hydroxide solution (30 °). The crystalline precipitating dye is filtered cold, pressed and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH86026T | 1918-05-24 | ||
CH86984T | 1918-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH86984A true CH86984A (en) | 1920-10-16 |
Family
ID=25703523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH86984D CH86984A (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) | CH86984A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682074A (en) * | 1950-01-14 | 1954-06-29 | Air Way Electric Appl Corp | Latch mechanism for vacuum cleaner floor tool parts |
-
1918
- 1918-05-24 CH CH86984D patent/CH86984A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682074A (en) * | 1950-01-14 | 1954-06-29 | Air Way Electric Appl Corp | Latch mechanism for vacuum cleaner floor tool parts |
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