CH187347A - Process for the preparation of a new azo dye. - Google Patents
Process for the preparation of a new azo dye.Info
- Publication number
- CH187347A CH187347A CH187347DA CH187347A CH 187347 A CH187347 A CH 187347A CH 187347D A CH187347D A CH 187347DA CH 187347 A CH187347 A CH 187347A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- azo dye
- new azo
- 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
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
- C09B31/075—Disazo dyes from a coupling component "C" containing a directive hydroxyl group ortho-Hydroxy carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Description
Verfahren zur Herstellung eines neuen Azofarbstoffs. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn mau dianotiertes 4 Auiino-5-äthoxy-ss-oxmetbyl-4'-nitro-1,1'-azo- benzot mit dem p-Anisidid der 2.3-Oxyr)aph- thoesäure vereinigt. Der neue Farbstoff stellt einen violetten Niederschlag dar. Auf geeig neten Substraten, wie zum Beispiel Baum wolle, hergestellt, färbt er diese in corinth- violetten Tönen mit vortrefflichen Echtheits eigenschaften.
<I>Beispiel:</I> 31,5 Teile 4-Amino-5 ätlioxy-ss-oxmethyl- 4'-riitro-1,1'-azobenzol werden wie üblich di anotiert und in eine Lösung von 29,3 Teilen 2,3-Oxyriaphthoesäure-4'-metlioxyanilid, 50 Teilen 30o/oiger Natronlauge; 30 Teilen Soda und 2000 Teilen Wasser eingetragen. Der ge- bildete Farbstoff fällt sofort aus. Der violette Niederschlag wird filtriert und getrocknet.
Process for the preparation of a new azo dye. It has been found that a new azo dye is obtained when mau dianotated 4 Auiino-5-ethoxy-ss-oxmetbyl-4'-nitro-1,1'-azobenzot with the p-anisidide of 2.3-oxyr) aph- thoic acid combined. The new dye represents a violet precipitate. Produced on suitable substrates such as cotton, it dyes them in corinth violet shades with excellent fastness properties.
<I> Example: </I> 31.5 parts of 4-amino-5-ätlioxy-ss-oxmethyl-4'-riitro-1,1'-azobenzene are dissolved as usual and in a solution of 29.3 parts of 2 3-oxyriaphthoic acid-4'-metlioxyanilide, 50 parts of 30% sodium hydroxide solution; 30 parts of soda and 2000 parts of water entered. The dye formed precipitates out immediately. The purple precipitate is filtered and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH187347T | 1935-05-22 | ||
CH185146T | 1935-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH187347A true CH187347A (en) | 1936-10-31 |
Family
ID=25721150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH187347D CH187347A (en) | 1935-05-22 | 1935-05-22 | Process for the preparation of a new azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH187347A (en) |
-
1935
- 1935-05-22 CH CH187347D patent/CH187347A/en unknown
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