CH101761A - Process for the preparation of a vat dye. - Google Patents
Process for the preparation of a vat dye.Info
- Publication number
- CH101761A CH101761A CH101761DA CH101761A CH 101761 A CH101761 A CH 101761A CH 101761D A CH101761D A CH 101761DA CH 101761 A CH101761 A CH 101761A
- Authority
- CH
- Switzerland
- Prior art keywords
- preparation
- dye
- vat
- vat dye
- violet
- 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
- C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
- C09B5/62—Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung eines Küpenfarbstoffes. Es ist gefunden worden, dass man durch Kondensation von Perylen-3.4.9.10-tetra- carbonsäure mit 1-Methyl-2-amino-5-chlor- -,benzol einen wertvollen Küpenfarbstoff er hält.
<I>Beispiel:</I> 392 Gewichtsteile Perylentetracarbon- säureanhydrid werden mit etwa 3000 Ge wichtsteilen 1-Methyl-2-amino-5-chlorbenzol bis zum Verschwinden des Perylentetra- carbonsäureanhy drids unter Rühren auf etwa 200 erhitzt. Man lässt dann auf etwa 60 abkühlen, rührt etwa 2000 Gewichtsteile Sprit ein und; filtriert. Nach dem Aus waschen mit Alkohol wird der Farbstoff mit verdünnter heisser Kalilauge extraliiert, ge waschen und getrocknet.
Der Farbstoff bildet rote Kristallnädel- chen. Er gibt aus roter Hydrosulfitküpe auf Baumwolle ein reines bläuliches Rosa. Die Lösung in konzentrierter Schwefelsäure ist violett, in dünner Schicht blau gefärbt.
Process for the preparation of a vat dye. It has been found that by condensing perylene-3.4.9.10-tetra- carboxylic acid with 1-methyl-2-amino-5-chloro-, benzene, a valuable vat dye is obtained.
<I> Example: </I> 392 parts by weight of perylenetetracarboxylic anhydride are heated to about 200 with about 3000 parts by weight of 1-methyl-2-amino-5-chlorobenzene until the perylenetetracarboxylic anhydride has disappeared. It is then allowed to cool to about 60, stirred in about 2000 parts by weight of fuel and; filtered. After washing with alcohol, the dye is extracted with dilute hot potassium hydroxide solution, washed and dried.
The dye forms red crystal needles. It gives a pure bluish pink from a red hydrosulfite vat on cotton. The solution in concentrated sulfuric acid is violet, in a thin layer blue.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH100706T | 1923-01-03 | ||
CH101761T | 1923-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH101761A true CH101761A (en) | 1923-10-16 |
Family
ID=25705884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH101761D CH101761A (en) | 1923-01-03 | 1923-01-03 | Process for the preparation of a vat dye. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH101761A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543747A (en) * | 1948-08-27 | 1951-03-06 | Gen Aniline & Film Corp | Preparation of n.n'-diaryl derivatives of perylene diimid |
DE1031449B (en) * | 1955-06-13 | 1958-06-04 | Bayer Ag | Process for the production of Kuepen dyes |
-
1923
- 1923-01-03 CH CH101761D patent/CH101761A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543747A (en) * | 1948-08-27 | 1951-03-06 | Gen Aniline & Film Corp | Preparation of n.n'-diaryl derivatives of perylene diimid |
DE1031449B (en) * | 1955-06-13 | 1958-06-04 | Bayer Ag | Process for the production of Kuepen dyes |
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