CH235470A - Process for the production of a sulfur dye. - Google Patents
Process for the production of a sulfur dye.Info
- Publication number
- CH235470A CH235470A CH235470DA CH235470A CH 235470 A CH235470 A CH 235470A CH 235470D A CH235470D A CH 235470DA CH 235470 A CH235470 A CH 235470A
- Authority
- CH
- Switzerland
- Prior art keywords
- production
- dye
- sulfur dye
- oleum
- sulfur
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Schwefelfarbstoffes. Im Hauptpatent ist ein Verfahren zur Herstellung eines Schwefelfarbstoffes be schrieben, gemäss welchem man das durch Kondensieren von Tetrachlorpyrenebinon, wie es erhältlich ist durch Behandeln von 1.2.3.5.6.7.8'.10-Octochdor-1.2.6.7-tetrahydro- pyren mit Oleum, zeit Anilin im Molver ,
ält- nis 1 : 1 erhaltene Kondensationsprodukt der Verschwefelung unterwirft.
Wie nun weiter gefunden wurde, erhält man einen Farbstoff mit sehr ähnlichen Eigenschaften, wenn man,das durch Konden sation des Isomerengemisches der Tetrachlor- pyrenchinone, wie es .durch Behandeln von 1.2.3.5.6.7.8.10-Octochlor-1.2.6.7-tetrahydro- pyren mit Oleum erhältlich ist, mit Ammoniak im Molverhältnis 1 :
1 erhaltene Kondensa- tionsproJukt der Versehwefelun.g unterwirft. <I>Beispiel::</I> 10 Gewichtsteile des Kondensationspro- duktes aus .Tetrachlorpyrenchinon (Isomeren- gemisch), erhältlich durch Behandeln von 1.2.3.5.6.7.8.10-Octochäor-@1.2.6.7-tetrahydro- pyren mit Oleum,
und Ammoniak im Mol- verhältnis-1 1 werden mit etwa 40 Gewichts teilen Schwefel bis zur Beendigung-der_Farb- stoffbildung .auf 240-280 erhitzt. Man er hält nach dem üblichen Aufschliessen mit Schwefelnatrium einen Farbstoff, der Baum wolle in sehr schönen braunen Tönen färbt. Die Färbungen zeigen sehr gute Echtheits- eigenschaften.
Process for the production of a sulfur dye. In the main patent, a process for the preparation of a sulfur dye is described, according to which one can be obtained by condensing tetrachloropyrenebinone, as can be obtained by treating 1.2.3.5.6.7.8'.10-octochloro-1.2.6.7-tetrahydropyrene with oleum , time aniline in the Molver,
Old 1: 1 obtained condensation product subjected to the sulphurisation.
As has now been found further, one obtains a dye with very similar properties if one, by condensation of the isomer mixture of the tetrachloropyrenequinones, as it .by treating 1.2.3.5.6.7.8.10-octochloro-1.2.6.7-tetrahydro - Pyrene is available with oleum, with ammonia in a molar ratio of 1:
1 condensation product obtained is subjected to sulfurization. <I> Example :: </I> 10 parts by weight of the condensation product from tetrachloropyrenequinone (mixture of isomers), obtainable by treating 1.2.3.5.6.7.8.10-Octochäor-@1.2.6.7-tetrahydropyrene with oleum,
and ammonia in a molar ratio of -11 are heated to 240-280 with about 40 parts by weight of sulfur until the end of the formation of the dye. After the usual digestion with sodium sulphide, a dye is obtained that dyes the cotton in very beautiful brown tones. The dyeings show very good fastness properties.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE235470X | 1941-01-29 | ||
CH230266T | 1941-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH235470A true CH235470A (en) | 1944-11-30 |
Family
ID=25727457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH235470D CH235470A (en) | 1941-01-29 | 1941-12-18 | Process for the production of a sulfur dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH235470A (en) |
-
1941
- 1941-12-18 CH CH235470D patent/CH235470A/en unknown
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