CH235207A - Process for the preparation of a copper-containing disazo dye. - Google Patents
Process for the preparation of a copper-containing disazo dye.Info
- Publication number
- CH235207A CH235207A CH235207DA CH235207A CH 235207 A CH235207 A CH 235207A CH 235207D A CH235207D A CH 235207DA CH 235207 A CH235207 A CH 235207A
- Authority
- CH
- Switzerland
- Prior art keywords
- copper
- amino
- dye
- preparation
- disazo 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/04—Disazo dyes in which the coupling component is a dihydroxy or polyhydroxy compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Herstellung eines kupferhaltigen Disazofarbstoffes. Gegenstand des vorliegenden Zusatz patentes ist ein Verfahren zur Darstellung eines kupferhaltigen Disazafarbstoffes, wel ches dadurch gekennzeichnet ist, dass man diazotierte 3-Amino-4-oxy-1,1'-,diphenylsul- fon-3'-sulfansäure, Üiazotiertes 4-Methyl-3- amino-1,1'-.diphenylsulfon, Resorcin und ein kupferabgebendes Mittel aufeinander ein wirken lässt.
Der neue Farbstoff stellt ein dunkel braunes Pulver dar, welches in Wasser mit gelbstickig brauner, in Schwefelsäure mit oranger Farbe löslich ist und Seide in gelb stickig braunen Tönen von ,guten Eehtheiten anfärbt.
<I>Beispiel:</I> 32,9 Gewichtsteile 3-Amino-4-oxy-1,1'-.di- phenylsulfarn-3'-sulfonsäure werden mit 6 Ge wichtsteilen Soda in Wasser gelöst, mit 6,9 Gewichtsteilen Natriumnitrit vermischt und durch Einlaufenlassen im 23 Gewichts teile Salzsäure bei 5 diazotiert. Man ver- einigt,den zum Teil ausgefallenen Diazokör- per bei laugenalka.lischer Reaktion mit 11 Ge- wichtsteilen 1,
3-Dioxybenzol. Der sauer .ab- getrennte Monoazafarb@stoff wird zur Über führung in die Kupferkomplexverbindung während 30 Minuten mit 25 Gewichtsteilen kristallisiertem Kupfersulfat bei 90 ver rührt, ausgasalzen, abgeschieden und wieder angerührt.
Man kuppelt dann essigsauer mit der Diazoverbindung aus 24,7 Gewichtsteilen 4-Methyl-3-amino-1,1'-diphenylsulfon und scheidet den kupferhaltigen Disazofarbstoff mit Kochsalz ab. Er färbt animalische Fasern in gelbstichig braunen Tönen von hervor- ragender Licht- und Was,che,ahthe@t.
Anstatt die Kupferung mit dem Monoazo- farbstoff vorzunehmen, kann man auch den fertig gebildeten Disazo,farbstoff in die Kupferverbindung überführen.
Process for the preparation of a copper-containing disazo dye. The subject of the present additional patent is a process for the preparation of a copper-containing disaza dye, wel Ches is characterized in that diazotized 3-amino-4-oxy-1,1 '-, diphenylsulfon-3'-sulfanic acid, Üiazotierter 4-methyl -3- amino-1,1 '-. Diphenyl sulfone, resorcinol and a copper-releasing agent can act on each other.
The new dye is a dark brown powder, which is soluble in water with a yellowish-brown color, in sulfuric acid with an orange color and dyes silk in yellow, sticky-brown shades of good consistency.
<I> Example: </I> 32.9 parts by weight of 3-amino-4-oxy-1,1 '-. Diphenylsulfarn-3'-sulfonic acid are dissolved with 6 parts by weight of soda in water, with 6.9 parts by weight Sodium nitrite mixed and diazotized by running in 23 parts by weight of hydrochloric acid at 5. It is agreed that the partially precipitated diazo bodies in an alkali-alkali reaction with 11 parts by weight of 1,
3-dioxybenzene. The acidic .ab- separated monoaza dye is for conversion into the copper complex compound for 30 minutes with 25 parts by weight of crystallized copper sulfate stirred at 90, degassed, separated and stirred again.
It is then coupled in acetic acid with the diazo compound from 24.7 parts by weight of 4-methyl-3-amino-1,1'-diphenyl sulfone and the copper-containing disazo dye is separated off with sodium chloride. It dyes animal fibers in yellowish brown tones with excellent light and what, che, ahthe @ t.
Instead of coppering with the monoazo dye, you can also convert the finished disazo dye into the copper compound.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH235207T | 1942-04-28 | ||
CH231256T | 1942-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH235207A true CH235207A (en) | 1944-11-15 |
Family
ID=25727572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH235207D CH235207A (en) | 1942-04-28 | 1942-04-28 | Process for the preparation of a copper-containing disazo dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH235207A (en) |
-
1942
- 1942-04-28 CH CH235207D patent/CH235207A/en unknown
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