DE414390C - Process for the preparation of brown wool and leather dyes - Google Patents

Process for the preparation of brown wool and leather dyes

Info

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
Application number
DEF54424D
Other languages
German (de)
Inventor
Robert Schmidlin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Priority to DEF54424D priority Critical patent/DE414390C/en
Priority to DEF56206D priority patent/DE431776C/en
Application granted granted Critical
Publication of DE414390C publication Critical patent/DE414390C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B51/00Nitro 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)

PATENTANSPRUCH: Verfahren zur Darstellung brauner Woll-und Lederfarbstoffe, dadurch gekennzeichnet, daß man Benzo-chinone mit substituierten oder nicht substituierten Nitroami.nodiphenylaminsulfosäuren kondensiert.PATENT CLAIM: Process for the preparation of brown wool and leather dyes, characterized in that one benzoquinones with substituted or unsubstituted Nitroami.nodiphenylamine sulfonic acids condensed.
DEF54424D 1923-07-24 1923-07-24 Process for the preparation of brown wool and leather dyes Expired DE414390C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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