CH211020A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH211020A CH211020A CH211020DA CH211020A CH 211020 A CH211020 A CH 211020A CH 211020D A CH211020D A CH 211020DA CH 211020 A CH211020 A CH 211020A
- Authority
- CH
- Switzerland
- Prior art keywords
- azo dye
- new azo
- production
- red
- new
- 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
- C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series
-
- 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
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass ein neuer Azo- farbstoff hergestellt werden kann, wenn man diazotiertes 1-Amino-3-chlorbenzol mit 2,3- Oxynaphthoesäure-3'-pyrenolid vereinigt.
Der neue Azofarbstoff bildet ein rot braunes, in Wasser unlösliches Pulver. Auf geeigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in sehr echten, insbesondere auch lichtechten, rotbraunen Tönen.
<I>Beispiel:</I> 12,7 Teile 1-Amino-3-ehlorbenzol (1%io Mol) werden wie üblich diazotiert und in eine Lösung von 38,8 Teilen 2,3-Oxynaphthoe- säure-3'-pyrenolid (1/1o Mol), 100 Teilen Na triumhydroxydlösung von 36 o B6, 15 Teilen Natriumacetat und 2000 Teilen Wasser ein- getragen. Der gebildete Farbstoff fällt so fort aus. Er wird abfiltriert, mit Wasser ge waschen und getrocknet.
Process for the production of a new azo dye. It has been found that a new azo dye can be produced if diazotized 1-amino-3-chlorobenzene is combined with 2,3-oxynaphthoic acid-3'-pyrenolide.
The new azo dye forms a red-brown powder that is insoluble in water. On suitable substrates, such as. B. cotton, produced, he dyes them in very real, especially lightfast, red-brown tones.
<I> Example: </I> 12.7 parts of 1-amino-3-chlorobenzene (1% 10 mol) are diazotized as usual and dissolved in a solution of 38.8 parts of 2,3-oxynaphthoic acid 3'- Pyrenolide (1/10 mol), 100 parts of sodium hydroxide solution of 36 o B6, 15 parts of sodium acetate and 2000 parts of water were introduced. The dye formed precipitates immediately. It is filtered off, washed ge with water and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH208951T | 1937-06-02 | ||
CH211020T | 1937-06-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH211020A true CH211020A (en) | 1940-08-15 |
Family
ID=25724634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH211020D CH211020A (en) | 1937-06-02 | 1937-06-02 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH211020A (en) |
-
1937
- 1937-06-02 CH CH211020D patent/CH211020A/en unknown
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