CH235473A - Process for the production of a sulfur dye. - Google Patents
Process for the production of a sulfur dye.Info
- Publication number
- CH235473A CH235473A CH235473DA CH235473A CH 235473 A CH235473 A CH 235473A CH 235473D A CH235473D A CH 235473DA CH 235473 A CH235473 A CH 235473A
- Authority
- CH
- Switzerland
- Prior art keywords
- sulfur dye
- dye
- production
- sulfur
- tetrahydropyrene
- 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
- C09B49/00—Sulfur dyes
- C09B49/12—Sulfur dyes from other compounds, e.g. other heterocyclic compounds
- C09B49/124—Sulfur dyes from other compounds, e.g. other heterocyclic compounds from polycarbocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Description
Zusatzpatent zum Hauptpatent Nr. 230266. Verfahren zur Herstellung eines Schwefelfarbstoffes. Im Hauptpatent ist ein, Verfahren zur Herstellung eines Schwefelfarbstoffes be schrieben, gemäss welchem man Jass durch Kondensieren des Isomerengemis,ches;
der Tetrachlorpyrenchinone, wie es erhältlich ist durch Behandeln von 1.2.3.4.5.6.7.8.10-0-cto- chlor-1.2.6.7-tetrahydropyren mit Oleum, mit Anilin im ATolverhältnis 1 : 1 erhaltene Kon- densationsyrodukt .der VeTschwefelung un terwirft.
Es hat sich nun gezeigt, .dass man zu einem Schwefelfarbstoff mit ganz ähnlichen Eigenschaften gelangt, wenn man das durch Kondensation des Ieomerengemisches der Tetrachlorpyrenchinone, wie es erhältlich ist durch Behandeln von 1.2.3.4.5.6.7.8.10-Octo- chilor-1.2.6.7-tetrahydropyren mit Oleum, mit Anilin im Molverhältnis 1 : 4 erhaltene Kon- densationsprocdukt der VeTschwefelung un terwirft.
<I>Beispiel:</I> 10 Gewichtsteile des aus Tetrachlorpyren- chinon (Isomerengemisch), wie es erhältlich ist durch Behandeln von 1.2.3.5.6.7.8.10-Oeto- chlpr-1.2.6.7-tetrahydropyren mit Oleum, und Anilin im M olverhä@ltnis 1 : 4 erhaltenen Kondensationsproduktes werden mit etwa 40 Gewichtsteilen Schwefel bis zur Beendi gung der Farbstoffbildung .auf 240-280 er hitzt.
Man erhält nach dem üblichen Auf schliessen mit- Schwefelnatrium einen Farb stoff, der Baumwolle in sehr schönem, grün lich feldgrauem Ton färbt. Die Färbungen zeigen ,sehr gute Echtheitseigenschaften.
Additional patent to main patent no. 230266. Process for the production of a sulfur dye. In the main patent is a process for the preparation of a sulfur dye be written, according to which one Jass by condensing the isomer mixture, ches;
the tetrachloropyrenequinones, as obtainable by treating 1.2.3.4.5.6.7.8.10-0-cto-chloro-1.2.6.7-tetrahydropyrene with oleum, condensation product obtained with aniline in a molar ratio of 1: 1, subject to sulfurization .
It has now been shown that .that one arrives at a sulfur dye with very similar properties, if one that is obtained by condensation of the Ieomeregemisches of the tetrachloropyrenequinones, as it is obtainable by treating 1.2.3.4.5.6.7.8.10-octochloro-1.2 .6.7-tetrahydropyrene with oleum, condensation product obtained with aniline in a molar ratio of 1: 4 subjected to sulphurization.
<I> Example: </I> 10 parts by weight of the tetrachloropyrene quinone (mixture of isomers), as obtainable by treating 1.2.3.5.6.7.8.10-Oeto- chlpr-1.2.6.7-tetrahydropyrene with oleum, and aniline im The condensation product obtained in a molar ratio of 1: 4 is heated to 240-280 with about 40 parts by weight of sulfur until the dye formation has ended.
After the usual opening with sodium sulphide, a dye is obtained which dyes cotton in a very beautiful, greenish field gray shade. The dyeings show very good fastness properties.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE235473X | 1941-01-29 | ||
CH230266T | 1941-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH235473A true CH235473A (en) | 1944-11-30 |
Family
ID=25727460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH235473D CH235473A (en) | 1941-01-29 | 1941-12-18 | Process for the production of a sulfur dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH235473A (en) |
-
1941
- 1941-12-18 CH CH235473D patent/CH235473A/en unknown
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