DE502352C - Process for the representation of violet dyes - Google Patents
Process for the representation of violet dyesInfo
- Publication number
- DE502352C DE502352C DEI31030D DEI0031030D DE502352C DE 502352 C DE502352 C DE 502352C DE I31030 D DEI31030 D DE I31030D DE I0031030 D DEI0031030 D DE I0031030D DE 502352 C DE502352 C DE 502352C
- Authority
- DE
- Germany
- Prior art keywords
- representation
- violet dyes
- acid
- vat
- phenylenediamine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung von violetten Küpenfarbstoffen Der aus Perylentetracarbonsäure und Phenylendiamin durch Kondensation nach dem Verfahren der Patentschrift 386 057 erhältliche violette Küpenfarbstoff kommt für die praktische Verwendung wegen der schlechten Löslichkeit der Leukoverbindung nicht in Frage. In der Patentschrift 412 r22 (Beispiel 6) ist ferner ein Farbstoff erwähnt, der durch Kondensation von Tetrachlor-perylentetracarbonsäure mit o-Phenylendiamin erhalten wird. Dieser Farbstoff besitzt zwar eine gute Küpenlöslichkeit, jedoch sind seine Seifen- und Sodakochechtheiten unbefriedigend.Process for the preparation of violet vat dyes Der from perylenetetracarboxylic acid and phenylenediamine by condensation by the method of patent 386 057 available purple vat dye comes for practical use because of poor solubility of the leuco compound is out of the question. In the patent specification 412 r22 (Example 6) also mentions a dye which is produced by condensation of Tetrachloroperylenetetracarboxylic acid is obtained with o-phenylenediamine. This dye Although it has good vat solubility, its fastness to soap and soda is great unsatisfactory.
Es ist nun gefunden worden, daß man zu Farbstoffen von guter Küpenlöslichkeit und gleichzeitig sehr guter Seifen- und Sodakochechtheit gelangt, wenn man halogenierte Perylentetracarbonsäuren zur Kondensation verwendet, die nur i bis 3 Halogenatome, vorteilhaft etwa 2, enthalten.It has now been found that dyes with good vat solubility can be obtained and at the same time very good fastness to soap and soda when halogenated Perylenetetracarboxylic acids used for condensation that contain only 1 to 3 halogen atoms, advantageously about 2 contain.
Beispiel ¢6 Gewichtsteile Dichlorperylentetracarbonsäure (erhalten durch Chlorierung der Perylentetracarbonsäure in Chlorsulfonsäure) werden mit 32 Gewichtsteilen o-Phenylendiamin gut vermahlen und zunächst 3 bis q. Stunden bei 13o bis 1501, dann die gleiche Zeit auf etwa 26o° erhitzt. Der erhaltene Farbstoff kann nach dem Abkühlen und Mahlen direkt zum Färben verwendet werden. Er stellt ein braunschwarzes Pulver dar, das sich mit blauer Farbe in konzentrierter Schwefelsäure löst und besitzt eine gute Küpenlöslichkeit. Die Ausfärbungen auf Baumwolle sind violett und zeigen eine sehr gute Seifen-, Sodakoch-, Licht- und Chlorechtheit.EXAMPLE 6 parts by weight of dichloroperylenetetracarboxylic acid (obtained by chlorination of perylenetetracarboxylic acid in chlorosulfonic acid) are thoroughly ground with 32 parts by weight of o-phenylenediamine and initially 3 to q. Hours at 13o to 1501, then heated to about 26o ° for the same time. The dye obtained can be used directly for dyeing after cooling and grinding. It is a brown-black powder that dissolves in concentrated sulfuric acid with a blue color and has good vat solubility. The dyeings on cotton are purple and show very good fastness to soap, soda, light and chlorine.
An Stelle des o-Phenylendiamins können seine Substitutionsprodukte, Homologen oder Analogen verwendet werden.Instead of o-phenylenediamine, its substitution products, Homologues or analogs can be used.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI31030D DE502352C (en) | 1927-04-30 | 1927-04-30 | Process for the representation of violet dyes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI31030D DE502352C (en) | 1927-04-30 | 1927-04-30 | Process for the representation of violet dyes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE502352C true DE502352C (en) | 1931-02-23 |
Family
ID=7187774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEI31030D Expired DE502352C (en) | 1927-04-30 | 1927-04-30 | Process for the representation of violet dyes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE502352C (en) |
-
1927
- 1927-04-30 DE DEI31030D patent/DE502352C/en not_active Expired
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