CH180292A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH180292A CH180292A CH180292DA CH180292A CH 180292 A CH180292 A CH 180292A CH 180292D A CH180292D A CH 180292DA CH 180292 A CH180292 A CH 180292A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- new dye
- blue
- oxynaphthalene
- 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
- C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
- C09B29/28—Amino naphthols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 178224. verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen neuen Farbstoff erhält, wenn man diazotiertes 2- Amino-5-nitro-phenylmethylsulfon mit 1- Oxyäthylamino-5-oxynaphthalin in saurem Medium vereinigt. Der so erhaltene Farbstoff bildet in trockenem Zustande ein dunkles Pulver, das sich in organischen Lösungsmit teln, wie Aceton, Essigester usw., mit leuch tend blaugrüner Farbe löst.
Durch geeignete Zusätze in feine Verteilung gebracht, färbt er Aeetatkunstseide in reinen, blaugrünen Tönen. <I>Beispiel:</I> 21,6 Teile ?-Amino-5-nitro-phenylmethyl- sulfon werden unter kräftigem Rühren in etwa 300 Teilen Schwefelsäure gelöst und darauf durch Zusatz von 8 Teilen Natrium nitrit oder der entsprechenden Menge Nitro- sylsehwefelsäure diazotiert. Man rührt, bis eine Probe in Eiswasser klar löslich ist. Nun wird die ganze Misohung in viel Eiswasser gegeben.
Die so erhaltene klare Diazolösung vereinigt man mit einer Auflösung von 20,3 Teilen 1-Oxäthylamino-5-oxynaphthalin in der nötigen Menge verdünnter Mineralsäure. Der Farbstoff scheidet sich als dunkles Pul ver aus. Nachdem die Kupplung durch Zu satz von Natriumacetat zu Ende geführt wurde, wird filtriert und neutral gewaschen.
Additional patent to main patent no. 178224. process for the production of a new dye. It has been found that a new dye is obtained if diazotized 2-amino-5-nitro-phenylmethylsulfone is combined with 1-oxyethylamino-5-oxynaphthalene in an acidic medium. The dye thus obtained forms a dark powder in the dry state, which dissolves in organic solvents such as acetone, ethyl acetate, etc., with a bright blue-green color.
Finely dispersed with suitable additives, he dyes acetate silk in pure, blue-green tones. <I> Example: </I> 21.6 parts of? -Amino-5-nitro-phenylmethylsulfone are dissolved in about 300 parts of sulfuric acid with vigorous stirring and then added by adding 8 parts of sodium nitrite or the corresponding amount of nitrosylsulfuric acid diazotized. The mixture is stirred until a sample is clearly soluble in ice water. Now the whole Misohung is poured into a lot of ice water.
The clear diazo solution thus obtained is combined with a dissolution of 20.3 parts of 1-oxethylamino-5-oxynaphthalene in the necessary amount of dilute mineral acid. The dye separates out as a dark powder. After the coupling has been completed by adding sodium acetate, it is filtered and washed neutral.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH180292T | 1934-03-24 | ||
CH178224T | 1934-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH180292A true CH180292A (en) | 1935-10-15 |
Family
ID=25720086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH180292D CH180292A (en) | 1934-03-24 | 1934-03-24 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH180292A (en) |
-
1934
- 1934-03-24 CH CH180292D patent/CH180292A/en unknown
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