CH179327A - Process for the preparation of an azo dye. - Google Patents
Process for the preparation of an azo dye.Info
- Publication number
- CH179327A CH179327A CH179327DA CH179327A CH 179327 A CH179327 A CH 179327A CH 179327D A CH179327D A CH 179327DA CH 179327 A CH179327 A CH 179327A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- new
- dye
- azo dye
- violet
- 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
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
-
- 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
- C09B29/06—Monoazo dyes prepared by diazotising and coupling from coupling components containing amino as the only directing group
- C09B29/08—Amino benzenes
- C09B29/0805—Amino benzenes free of acid groups
- C09B29/0807—Amino benzenes free of acid groups characterised by the amino group
- C09B29/0809—Amino benzenes free of acid groups characterised by the amino group substituted amino group
- C09B29/0811—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino
- C09B29/0813—Amino benzenes free of acid groups characterised by the amino group substituted amino group further substituted alkylamino, alkenylamino, alkynylamino, cycloalkylamino aralkylamino or arylamino substituted by OH, O-C(=X)-R, O-C(=X)-X-R, O-R (X being O,S,NR; R being hydrocarbonyl)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Description
Zusatzpatent zum 13auptpatent Nr. 175365. Verfahren zur Darstellung eines Azofarbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff von wertvollen Eigenschaften erhält durch Kupplung von diazotiertem 6-Chlor-'2) .4-dinitroanilin mit 3-ss,y-Dioxy- pr opylamino-4-methoxy-l-methylbenzol.
Der neue Farbstoff ist ein in Wasser unlösliches dunkles Pulver, das in Aceton mit blauvioletter und in konzentrierter Schwefelsäure mit scharlachroter Farbe lös lich ist und nach dem üblichen Verfahren Acetatseide in schönen blauvioletten Tönen anfärbt. Die Färbungen zeigen gute Eeht- heitseigensehaften und sind rein weiss ätzbar. Das neue Produkt ist auch ein gutes Färbe mittel für Lacke.
<I>Beispiel:</I> I0$ Teile 6-Chlor-2. 4-dinitroanilin wer den in bekannter Weise mit einer Nitrosyl- schwefelsäure, entsprechend 3-5 Teilen Na triumnitrit, diazotiert. Die Diazoniumlösung wird filtriert und mit 105,5 Teilen 3-ss,y- Dioxypropylamino - 4- methoxy-1- methylben- zol, gelöst in 500 Teilen Essigsäure 85%ig und 3000 Teilen Eiswasser, bei 0 bis 5 zur Kupplung gebracht.
Nach einiger Zeit ist die Farbstoffbildung beendet; man kann sie durch Abstumpfender stark sauren Reaktion beschleunigen. Der ausgeschiedene Farbstoff wird in bekannter Weise aufgearbeitet, ver- pastet, oder, nach dem Trocknen bei mässig hoher Temperatur, zu einem Färbepräparat verarbeitet.
Additional patent to the 13th main patent No. 175365. Process for the preparation of an azo dye. It has been found that a new azo dye with valuable properties is obtained by coupling diazotized 6-chloro-2) .4-dinitroaniline with 3-ss, γ-dioxypropylamino-4-methoxy-1-methylbenzene.
The new dye is a dark powder which is insoluble in water and which is soluble in acetone with a blue-violet color and in concentrated sulfuric acid with a scarlet-red color and dyes acetate silk in beautiful blue-violet tones using the usual method. The colorations show good integrity properties and can be etched in pure white. The new product is also a good colorant for paints.
<I> Example: </I> I0 $ parts 6-chloro-2. 4-dinitroaniline who diazotized in a known manner with a nitrosyl sulfuric acid, corresponding to 3-5 parts of sodium nitrite. The diazonium solution is filtered and coupled at 0-5 with 105.5 parts of 3-ss, γ-dioxypropylamino-4-methoxy-1-methylbenzene, dissolved in 500 parts of 85% acetic acid and 3000 parts of ice water.
After a while, the dye formation is complete; it can be accelerated by dulling the strongly acidic reaction. The precipitated dye is worked up, pasted or, after drying at a moderately high temperature, processed into a dye preparation in a known manner.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH175355T | 1934-04-07 | ||
CH179327T | 1934-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH179327A true CH179327A (en) | 1935-08-31 |
Family
ID=25719673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH179327D CH179327A (en) | 1934-04-07 | 1934-04-07 | Process for the preparation of an azo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH179327A (en) |
-
1934
- 1934-04-07 CH CH179327D patent/CH179327A/en unknown
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