CH238448A - Process for the production of a metallizable dye. - Google Patents
Process for the production of a metallizable dye.Info
- Publication number
- CH238448A CH238448A CH238448DA CH238448A CH 238448 A CH238448 A CH 238448A CH 238448D A CH238448D A CH 238448DA CH 238448 A CH238448 A CH 238448A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- dye
- production
- metallizable
- metallizable 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
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/04—Stilbene-azo dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr.236583. Verfahren zur Herstellung eines metallisierbaren Farbstoffes. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines metalli- sierbaren Farbstoffes.
Das Verfahren ist da durch gekennzeichnet, dass die Monoazofarb- stoffe 4-Nitro-4'-aminostilben-2,2'-disulfon- säure > 2-Oxy-3-naphthoesäure und 2 Amino-l-oxybenzol-4-sulfonsäure ->m-Ani- sidin in alkalischer Lösung miteinander kon densiert werden.
Der neue Farbstoff stellt ein dunkles Pul ver dar. Er löst sich in Wasser mit roter, in conc. Schwefelsäure mit violetter Farbe und färbt Cellulosefasern in trüben Bordeaux tönen. Durch Nachbehandlung der Färbungen mit Kupfersalzen werden licht- und sehr gut wasserechte, blaugraue Töne erhalten.
Beispiel: 62,1 Teile des Farbstoffes aus diazotierter 4-Nitro-4'-aminostilben-2,2'-disulfonsäure und 2-Oxy-3-naphthoesäure und 28 Teile des Aminoazofarbstoffes aus diazotierter 2- Amino-l-oxybenzol-4-sulfonsäure und m-Ani- si.din werden in 1500- Teilen Wasser und 250 Teilen Natronlauge 36 B6 12-l5 Stunden bei Siedetemperatur unter Rückfluss oder 10 bis 12 Stunden im <RTI
ID="0001.0032"> Autoklaven bei 105-110 kondensiert. Nach dem Abkühlen wird mit Salzsäure neutralisiert, mit Kochsalz vollends ausgefällt, abfiltriert und getrocknet.
Additional patent to main patent No. 236583. Process for the production of a metallizable dye. The present patent relates to a process for producing a metallizable dye.
The process is characterized in that the monoazo dyes 4-nitro-4'-aminostilbene-2,2'-disulfonic acid> 2-oxy-3-naphthoic acid and 2-amino-1-oxybenzene-4-sulfonic acid -> m-anisidine are condensed together in an alkaline solution.
The new dye is a dark powder. It dissolves in water with red, in conc. Sulfuric acid with a violet color and dyes cellulose fibers in cloudy Bordeaux tones. After-treating the dyeings with copper salts, lightfast and very waterfast, blue-gray shades are obtained.
Example: 62.1 parts of the dye from diazotized 4-nitro-4'-aminostilbene-2,2'-disulfonic acid and 2-oxy-3-naphthoic acid and 28 parts of the aminoazo dye from diazotized 2-amino-1-oxybenzene-4- Sulphonic acid and m-anisi.din are dissolved in 1500 parts of water and 250 parts of sodium hydroxide solution 36 B6 for 12-15 hours at the boiling point under reflux or for 10 to 12 hours at <RTI
ID = "0001.0032"> Autoclave condensed at 105-110. After cooling, it is neutralized with hydrochloric acid, completely precipitated with common salt, filtered off and dried.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH238448T | 1942-12-22 | ||
CH236583T | 1942-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH238448A true CH238448A (en) | 1945-07-15 |
Family
ID=25728123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH238448D CH238448A (en) | 1942-12-22 | 1942-12-22 | Process for the production of a metallizable dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH238448A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2681926A (en) * | 1951-07-17 | 1954-06-22 | American Cyanamid Co | Dichlorodiaminostilbenedisulfonic acids |
-
1942
- 1942-12-22 CH CH238448D patent/CH238448A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2681926A (en) * | 1951-07-17 | 1954-06-22 | American Cyanamid Co | Dichlorodiaminostilbenedisulfonic acids |
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