CH185145A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH185145A CH185145A CH185145DA CH185145A CH 185145 A CH185145 A CH 185145A CH 185145D A CH185145D A CH 185145DA CH 185145 A CH185145 A CH 185145A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- azo dye
- new azo
- new
- new 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/12—Disazo dyes from other coupling components "C"
- C09B31/14—Heterocyclic components
-
- 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, welcher der Formel
EMI0001.0003
entspricht, wenn man dianotiertes 4-Amirro- 5-methoxy - 2 - methyl-4'- chlor-1 . 1'- azobenzol mit 3-Oxy-1 .2-benzofluorenon kuppelt.
Der neue Farbstoff bildet ein schwarzes Pulver. Auf geeigneten Substraten, wie z. B. pflanzlichen Fasern, hergestellt, färbt er diese in echten schweren Tönen.
<I>Beispiel:</I> 27,5 Teile 4-Amirro-5-methoxy-2-methyl- 4'-chlor-1.1'-azobenzol werden wie üblich dianotiert und in eine Lösung von 24,6 Tei len des 3-Oxy-1. 2-benzofluorenons, 50 Teilen 30 o/oiger Natronlauge, 30 Teilen Soda und 2000 Teilen Wasser eingetragen. Der gebil- dete Farbstoff fällt sofort aus. Der schwarze Niederschlag wird filtriert und getrocknet.
Process for the production of a new azo dye. It has been found that a new dye is obtained which has the formula
EMI0001.0003
corresponds if one dianotated 4-Amirro-5-methoxy-2-methyl-4'-chloro-1. 1'-azobenzene couples with 3-oxy-1 .2-benzofluorenone.
The new dye forms a black powder. On suitable substrates, such as. B. vegetable fibers, he dyes them in real heavy tones.
<I> Example: </I> 27.5 parts of 4-amirro-5-methoxy-2-methyl-4'-chloro-1.1'-azobenzene are dianotized as usual and poured into a solution of 24.6 parts of the 3rd -Oxy-1. 2-benzofluorenone, 50 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water. The dye formed precipitates immediately. The black precipitate is filtered and dried.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH185145T | 1934-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH185145A true CH185145A (en) | 1936-07-15 |
Family
ID=4433507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH185145D CH185145A (en) | 1934-10-13 | 1934-10-13 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH185145A (en) |
-
1934
- 1934-10-13 CH CH185145D patent/CH185145A/en unknown
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