CH124278A - Process for the production of a new dye. - Google Patents
Process for the production of a new dye.Info
- Publication number
- CH124278A CH124278A CH124278DA CH124278A CH 124278 A CH124278 A CH 124278A CH 124278D A CH124278D A CH 124278DA CH 124278 A CH124278 A CH 124278A
- Authority
- CH
- Switzerland
- Prior art keywords
- dye
- phosgene
- production
- azo
- dianotated
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/12—Preparation of azo dyes from other azo compounds by acylation of amino groups
- C09B43/136—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents
- C09B43/14—Preparation of azo dyes from other azo compounds by acylation of amino groups with polyfunctional acylating agents with phosgene or thiophosgene
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 123162. Verfahren zur Herstellung eines neuen Farbstoffes. Es wurde gefunden, dass man einen neuen Azofarbstoff erhält, wenn man den Azofarb- stoff, welcher erhalten werden kann durch Vereinigen eines dianotierten und an der OH-Gruppe acidylierten Derivates der 1,8 Atninonaphthol-3,6-disulfosäure mit Kresidin (CHa :
OCHS : NH2 =1: 4 : 3), ein Verseif ungs- mittel, Phosgen und den Azofarbstoff, der erhalten werden kann durch Vereinigen des dianotierten Monoacetyl-m-phenylendiamins mit o-Kresotinsäure und Verseifen der erhalte nen Azoverbindung aufeinander einwirken lässt und so zu einem Harnstoffderivat verkettet: Der neue Farbstoff bildet ein braunrotes Pulver; er färbt ungebeizte Baumwolle in sehr egalen, gelbroten Tönen von sehr guter Lichtechtheit.
Beispiel: 62,1 Teile des Farbstoffes aus dem diano tierten p-Toluolsulfosäureester der 1,8-Amino- naphthol-3,6-disulfosäure und gresidin (CHs: OCHS : NH2 = 1: 4 :
3), sowie 27,1 Teile des verseiften Farbstoffes aus dianotiertem Mono- acetyl-1,3-phenylendiamin und o-Kresotinsäure werden in 800 Teilen Wasser und 40 Teilen kalzinierter Soda gelöst und bei 20 bis<B>30'</B> durch Behandlung mit Phösgen in den ent sprechenden gemischten Harnstoff übergeführt,
der hierauf mit 3 % iger Natronlauge bei 80 bis 900 verseift wird. Der neue Farbstoff wird in bekannter Weise isoliert.
Der gleiche Farbstoff entsteht auch, wenn man den Farbstoff aus dem Ester der 1,8- Aminonaphthol-3,6-disulfosäure zunächst ver seift und dann mit dem zweiten Azokörper vereinigt.
Additional patent to the main patent No. 123162. Process for the production of a new dye. It has been found that a new azo dye is obtained if the azo dye, which can be obtained by combining a dianotated derivative of 1,8 atninonaphthol-3,6-disulfonic acid with cresidine (CHa:
OCHS: NH2 = 1: 4: 3), a saponifying agent, phosgene and the azo dye, which can be obtained by combining the dianotated monoacetyl-m-phenylenediamine with o-cresotinic acid and saponifying the azo compound obtained, and so on linked to a urea derivative: the new dye forms a brownish-red powder; it dyes unstained cotton in very even, yellow-red shades of very good lightfastness.
Example: 62.1 parts of the dye from the diano tated p-toluenesulfonic acid ester of 1,8-amino-naphthol-3,6-disulfonic acid and gresidin (CHs: OCHS: NH2 = 1: 4:
3), and 27.1 parts of the saponified dye made from dianotized monoacetyl-1,3-phenylenediamine and o-cresotinic acid are dissolved in 800 parts of water and 40 parts of calcined soda and at 20 to 30 ' converted into the corresponding mixed urea by treatment with Phösgen,
which is then saponified with 3% sodium hydroxide solution at 80 to 900. The new dye is isolated in a known manner.
The same dye is also formed when the dye from the ester of 1,8-aminonaphthol-3,6-disulfonic acid is first soaped and then combined with the second azo body.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH124278T | 1926-07-10 | ||
CH123162T | 1926-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH124278A true CH124278A (en) | 1928-01-16 |
Family
ID=25710040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH124278D CH124278A (en) | 1926-07-10 | 1926-07-10 | Process for the production of a new dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH124278A (en) |
-
1926
- 1926-07-10 CH CH124278D patent/CH124278A/en unknown
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