CH203607A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH203607A CH203607A CH203607DA CH203607A CH 203607 A CH203607 A CH 203607A CH 203607D A CH203607D A CH 203607DA CH 203607 A CH203607 A CH 203607A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- azo dye
- new azo
- new
- orange
- 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
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man diazotiertes 3-Amino-phthalsäure-N-iso-amyl-imid mit dem 2,3-Oxynaphthoesäure-3'-chloranilid vereinigt.
Der neue Farbstoff bildet ein orangerotes, in Wasser unlösliches Pulver. Auf geeigneten Substraten, wie z. B. Baumwolle, hergestellt, färbt er diese in echten orangeroten Tönen. <I>Beispiel:</I> 23,2 Teile des 3-Amino-phthalsäure-N- iso-amyl-imids werden wie üblich diazotiert und in eine Lösung von 29,7 Teilen 2,3- Oxynaphthoesäure-3'-chloranilid, 40 Teilen 30 o/oiger Natriumhydroxydlösung, 15 Teilen Soda in 1000 Teilen Wasser eingetragen. Der gebildete Farbstoff fällt sofort aus. Der orange rote Niederschlag wird filtriert und getrocknet.
Process for the production of a new azo dye. It has been found that a new azo dye is obtained if diazotized 3-amino-phthalic acid-N-iso-amyl-imide is combined with 2,3-oxynaphthoic acid-3'-chloroanilide.
The new dye forms an orange-red powder that is insoluble in water. On suitable substrates, such as. B. cotton, he dyes them in real orange-red tones. <I> Example: </I> 23.2 parts of 3-amino-phthalic acid-N-iso-amyl-imide are diazotized as usual and converted into a solution of 29.7 parts of 2,3-oxynaphthoic acid-3'-chloroanilide , 40 parts of 30% sodium hydroxide solution, 15 parts of soda added to 1000 parts of water. The dye formed precipitates immediately. The orange-red precipitate is filtered and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH203607T | 1936-11-16 | ||
CH200998T | 1938-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH203607A true CH203607A (en) | 1939-03-15 |
Family
ID=25723630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH203607D CH203607A (en) | 1936-11-16 | 1936-11-16 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH203607A (en) |
-
1936
- 1936-11-16 CH CH203607D patent/CH203607A/en unknown
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