CH187910A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH187910A CH187910A CH187910DA CH187910A CH 187910 A CH187910 A CH 187910A CH 187910D A CH187910D A CH 187910DA CH 187910 A CH187910 A CH 187910A
- 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
Description
Zusatzpatent zum Hauptpatent Nr. 185145. Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, der der Formel
EMI0001.0006
entspricht, wenn man dianotiertes 4-Amino- 2.5-diäthoxy-3'-methyl-1.1'-azobenzol mit 3- Oxy-1.2-benzofluorenon kuppelt.
Der neue Farbstoff bildet ein schwarzes Pulver. Auf geeigneten Substraten, wie zum Beispiel pflanzlichen Fasern, hergestellt, färbt er diese in echten schwarzen Tönen.
<I>-</I> Beispiel: 29,9 Teile 4-Amino-2. 5-diäthoxy-3'-methyl- 1.1'-azobenzol werden wie üblich dianotiert und in eine Lösung von 24,6 Teilen des 3- Oxy-1. 2-benzofluorenons, 50 Teilen 30 o/oiger Natronlauge, 30 Teilen Soda und 2000 Teilen Wasser eingetragen. Der gebildete Farbstoff fällt sofort aus. Der schwarze Niederschlag wird filtriert und getrocknet.
Additional patent to main patent No. 185145. Process for the production of a new azo dye. It has been found that a new dye can be obtained that has the formula
EMI0001.0006
corresponds if one couples dianotated 4-amino-2.5-diethoxy-3'-methyl-1.1'-azobenzene with 3-oxy-1.2-benzofluorenone.
The new dye forms a black powder. Produced on suitable substrates, such as vegetable fibers, he dyes them in real black tones.
<I> - </I> Example: 29.9 parts of 4-amino-2. 5-diethoxy-3'-methyl-1.1'-azobenzene are dianotized as usual and in a solution of 24.6 parts of 3-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 off and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH185145T | 1934-10-13 | ||
CH187910T | 1934-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187910A true CH187910A (en) | 1936-11-30 |
Family
ID=25721146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187910D CH187910A (en) | 1934-10-13 | 1934-10-13 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187910A (en) |
-
1934
- 1934-10-13 CH CH187910D patent/CH187910A/en unknown
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