CH187909A - Process for the production of a new azo dye. - Google Patents
Process for the production of a new azo dye.Info
- Publication number
- CH187909A CH187909A CH187909DA CH187909A CH 187909 A CH187909 A CH 187909A CH 187909D A CH187909D A CH 187909DA CH 187909 A CH187909 A CH 187909A
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, welcher der Formel
EMI0001.0002
entspricht, wenn man dianotiertes 4-Amino- 2.5-diäthoxy-4'-chlor-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.
Beispiel: 31,9 Teile 4-Amino-2.5-diäthoxy-4'-chlor- 1.l'-azobenzol werden wie üblich dianotiert und in eine Lösung von 24,6 Teilen des 3- Oxy-1. 2-betizofluorenons, 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.
Process for the production of a new azo dye. It has been found that a new dye is obtained which has the formula
EMI0001.0002
corresponds if one couples dianotated 4-amino-2.5-diethoxy-4'-chloro-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.
Example: 31.9 parts of 4-amino-2,5-diethoxy-4'-chloro-1.l'-azobenzene are dianotized as usual and in a solution of 24.6 parts of 3-oxy-1. 2-betizofluorenone, 50 parts of 30% sodium hydroxide solution, 30 parts of soda and 2000 parts of water entered. 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 |
---|---|---|---|
CH187909T | 1934-10-13 | ||
CH185145T | 1934-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187909A true CH187909A (en) | 1936-11-30 |
Family
ID=25721145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187909D CH187909A (en) | 1934-10-13 | 1934-10-13 | Process for the production of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187909A (en) |
-
1934
- 1934-10-13 CH CH187909D patent/CH187909A/en unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH187909A (en) | Process for the production of a new azo dye. | |
CH187908A (en) | Process for the production of a new azo dye. | |
CH185145A (en) | Process for the production of a new azo dye. | |
CH178107A (en) | Process for the production of a new azo dye. | |
CH187910A (en) | Process for the production of a new azo dye. | |
CH187912A (en) | Process for the production of a new azo dye. | |
CH187911A (en) | Process for the production of a new azo dye. | |
CH181163A (en) | Process for the production of a new azo dye. | |
CH155015A (en) | Process for the production of a new azo dye. | |
CH181164A (en) | Process for the production of a new azo dye. | |
CH155013A (en) | Process for the production of a new azo dye. | |
CH187425A (en) | Process for the production of a new azo dye. | |
CH155019A (en) | Process for the production of a new azo dye. | |
CH155017A (en) | Process for the production of a new azo dye. | |
CH155016A (en) | Process for the production of a new azo dye. | |
CH167173A (en) | Process for the production of a new azo dye. | |
CH155018A (en) | Process for the production of a new azo dye. | |
CH155012A (en) | Process for the production of a new azo dye. | |
CH203602A (en) | Process for the production of a new azo dye. | |
CH203606A (en) | Process for the production of a new azo dye. | |
CH203605A (en) | Process for the production of a new azo dye. | |
CH203604A (en) | Process for the production of a new azo dye. | |
CH164431A (en) | Process for the production of a new azo dye. | |
CH164432A (en) | Process for the production of a new azo dye. | |
CH191422A (en) | Process for the preparation of a monoazo dye. |