DE414390C - Process for the preparation of brown wool and leather dyes - Google Patents
Process for the preparation of brown wool and leather dyesInfo
- Publication number
- DE414390C DE414390C DEF54424D DEF0054424D DE414390C DE 414390 C DE414390 C DE 414390C DE F54424 D DEF54424 D DE F54424D DE F0054424 D DEF0054424 D DE F0054424D DE 414390 C DE414390 C DE 414390C
- Authority
- DE
- Germany
- Prior art keywords
- preparation
- brown
- dyes
- leather dyes
- parts
- 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
- C09B51/00—Nitro or nitroso dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zur Darstellung brauner Woll- und Lederfarbstoffe. Es hat sich gezeigt, daß durch Verknüpfung zweier Moleküle Nitroaminodiphenylaminsulfosäuren mittels Benzochinonen, wie z. B. Chloranil usw., Farbstoffe entstehen, deren Echtheitseigenschaften sie zum Färben von Wolle und namentlich auch Leder geeignet machen. Es lassen sich mit ihnen die verschiedensten Nuancen von Braun erzielen.Process for the preparation of brown wool and leather dyes. It has it has been shown that by linking two molecules nitroaminodiphenylamine sulfonic acids by means of benzoquinones, such as. B. Chloranil, etc., dyes arise, their fastness properties make them suitable for dyeing wool and especially leather. It can be use them to achieve the most varied of shades of brown.
Ein Repräsentant dieser Klasse ist z. B. der Körper der ein gutes, kräftiges Braun liefert. Durch Erweiterung des Moleküls können ab:geänderte Nuancen erhalten werden. So wird z. B. durch den Farbstoff: ein grünstichiges Braun erzielt, das bisher nur durch Mischen verschiedener Farbstoffe zu erreichen war.A representative of this class is e.g. B. the body which delivers a good, strong brown. By expanding the molecule, changed nuances can be obtained from: So z. B. by the dye: a greenish brown is achieved, which was previously only possible by mixing different dyes.
Bei der Häufung von Anilidogruppen im Molekül war nicht zu erwarten, daß Körper von hinreichender Löslichkeit entstehen würden, und im Hinblick auf die vielen @elektronegativen Bestandteile konnte auf Alkaliechtheit, die diese Farbstoffe in hohem Maße besitzen, nicht gerechnet werden. Beispiele: i. 3 i Teile .l-Nitro- 4:'-aminodiphenylamin-2-sulfosäure werden in 4.0o Teilen Waisser mittels i o,6 Tölen Soda -gelöst 'und mit 1a Teilen Chlora@nil während einiger Stunden unter Rühren auf etwa 9o° -erwärmt. Nasch dem Erkalten wird abfiltriert und nachgewaschen.With the accumulation of anilido groups in the molecule, it was not to be expected that bodies of sufficient solubility would arise, and in view of the Many @electronegative constituents could affect the alkali fastness that these dyes to a large extent, not to be reckoned with. Examples: i. 3 i parts of .l-nitro-4: '- aminodiphenylamine-2-sulfonic acid are in 4.0o parts of Waisser by means of 10.6 tölen soda - dissolved 'and with 1 a parts Chlora @ nil for a few hours warmed to about 90 ° while stirring. After it has cooled down, it is filtered off and washed.
z. 46,7 Teile dinitroanilido.aminodiphenylamin-,o-sulfosaures Natrium, erhalten durch Kondensation von Chlordinitrobenzol (i, a, ::E) mit .l, .l'-diaminodiphenylamin-z-sulfosaurem Natrium in .loo Teilen Wasser gelöst, werden mit i? Teilen Chloranil und 5,3 Teilen Soda bei etwa 9o° einige Stunden verrührt. Nach dem Filtrieren und Trocknen erhält man den Farbstoff als schwarzes Pulver.z. 46.7 parts of dinitroanilido.aminodiphenylamine-, o-sulfonic acid sodium, obtained by condensation of chloronitrobenzene (i, a, :: E) with .l, .l'-diaminodiphenylamine-z-sulfonic acid Sodium dissolved in .loo parts of water are mixed with i? Parts of chloranil and 5.3 parts Soda was stirred for a few hours at about 90 °. Obtained after filtering and drying you get the dye as a black powder.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF54424D DE414390C (en) | 1923-07-24 | 1923-07-24 | Process for the preparation of brown wool and leather dyes |
DEF56206D DE431776C (en) | 1923-07-24 | 1924-05-29 | Process for the preparation of brown wool and leather dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF54424D DE414390C (en) | 1923-07-24 | 1923-07-24 | Process for the preparation of brown wool and leather dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE414390C true DE414390C (en) | 1925-05-28 |
Family
ID=7107076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEF54424D Expired DE414390C (en) | 1923-07-24 | 1923-07-24 | Process for the preparation of brown wool and leather dyes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE414390C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2440206A1 (en) * | 1974-08-22 | 1976-03-04 | Hoechst Ag | Acid nitro dyes from amino nitro diphenylamine sulphonic acids - by treatment with manganese dioxide |
-
1923
- 1923-07-24 DE DEF54424D patent/DE414390C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2440206A1 (en) * | 1974-08-22 | 1976-03-04 | Hoechst Ag | Acid nitro dyes from amino nitro diphenylamine sulphonic acids - by treatment with manganese dioxide |
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