DE603760C - Process for the preparation of condensation products of azo dyes - Google Patents
Process for the preparation of condensation products of azo dyesInfo
- Publication number
- DE603760C DE603760C DEI46680D DEI0046680D DE603760C DE 603760 C DE603760 C DE 603760C DE I46680 D DEI46680 D DE I46680D DE I0046680 D DEI0046680 D DE I0046680D DE 603760 C DE603760 C DE 603760C
- Authority
- DE
- Germany
- Prior art keywords
- dye
- dinitro
- chlorobenzene
- sulfonic acid
- tones
- 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
- C09B56/00—Azo dyes containing other chromophoric systems
- C09B56/005—Azo-nitro dyes
-
- 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
- C09B43/00—Preparation of azo dyes from other azo compounds
- C09B43/11—Preparation of azo dyes from other azo compounds by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM 9. OKTOBER 1934ISSUED ON OCTOBER 9, 1934
REICHSPATENTAMTREICH PATENT OFFICE
KLASSE 22a GRUPPECLASS 22a GROUP
Es ist bekannt, durch Kondensation von Aminosalicylsäure mit aromatischen Halogennitroverbindungen Farbstoffe herzustellen, deren Metallverbindungen auf tierischen Fasern gelbe bis braune Färbungen liefern. Diese Farbstoffe entsprechen der allgemeinen FormelIt is known by condensation of aminosalicylic acid with aromatic halonitro compounds Manufacture dyes whose metal compounds are based on animal Fibers produce yellow to brown colors. These dyes correspond to the general one formula
HO-HO-
}-NH- Nitroaryl.} -NH- nitroaryl.
COOHCOOH
Es wurde nun gefunden, daß man durch Kondensation von Aminoarylazosalicylsäuren mit Sulfonsäuren aromatischer Halogennitroverbindungen, die ein austauschbares Halogenatom enthalten, neue wertvolle Azofarbstoffe erhält. Diese entsprechen der allgemeinen FormelIt has now been found that condensation of aminoarylazosalicylic acids with sulfonic acids of aromatic halonitro compounds containing an exchangeable halogen atom contain new valuable azo dyes. These correspond to the general one formula
HO-HO-
n = N—Aryl—-NH-Nitroarylsulfansäure. n = N-aryl-NH-nitroarylsulfanoic acid.
COOHCOOH
Die erhaltenen Kondensationsprodukte ziehen aus saurem Bade in gelbbraunen bis rotbraunen Tönen auf Wolle auf und besitzen insbesondere nach der Behandlung mit chromabgebenden Mitteln hervorragende Echtheitseigenschaften.The condensation products obtained pull from an acidic bath in yellow-brown to red-brown tones on wool and especially after treatment with chromium-releasing agents have excellent fastness properties.
Die Anwesenheit der N=N—Aryl-Gruppe, wodurch diese Farbstoffe sich von den obengenannten unterscheiden, verleiht den Farbstoffen, insbesondere nach der Chromierung, intensivere und klarere Nuancen. . 3^The presence of the N = N-aryl group, as a result of which these dyes differ from those mentioned above, gives the dyes, especially after chromation, more intense and clearer nuances. . 3 ^
Die Kondensation der Ausgangsazofarbstoffe, die sich am besten durch Kuppeln von Salicylsäure mit Diazoverbindungen von Monoacylderivaten aromatischer Diamine und Verseifen der entstandenen Acylverbindungen erhalten lassen, mit den Sulfonsäuren der Halogennitroverbindungen erfolgt zweckmäßig in wäßriger Lösung bei Anwesenheit eines säurebindenden Mittels.The condensation of the starting azo dyes, which are best obtained by coupling of salicylic acid with diazo compounds of monoacyl derivatives of aromatic diamines and Let saponification of the acyl compounds formed can be obtained with the sulfonic acids of the Halogen nitro compounds are advantageously carried out in aqueous solution in the presence of one acid binding agent.
Die sodaalkalische Lösung von 25 kg des Azofarbstoffe folgender Konstitution:The soda-alkaline solution of 25 kg of the azo dye of the following constitution:
HOHO
-N = N-<-N = N- <
-NH0 -NH 0
COOHCOOH
(erhalten durch Kuppeln der Diazoverbindung von i-Amino-4-acetylaminobenzol mit Salicylsäure und nachfolgende Verseifung) in etwa 500 1 Wasser wird mit einer Lösung von 35 kg 2, 4-dinitro-i-chlorbenzol-6-sulfonsaurem Kalium und 15 kg Soda in etwa 700 1 Wasser(Obtained by coupling the diazo compound of i-amino-4-acetylaminobenzene with salicylic acid and subsequent saponification) in about 500 l of water is mixed with a solution of 35 kg of 2,4-dinitro-i-chlorobenzene-6-sulfonic acid Potassium and 15 kg of soda in about 700 liters of water
*■) Von den Patentsucher sind als die Erfinder angegeben worden:* ■) The patent seekers named the following as the inventors:
Dr. Ernst Honold und Dr. Carltheo Schultis in Frankfurt a. M.-Fechenheim.Dr. Ernst Honold and Dr. Carltheo Schultis in Frankfurt a. M.-Fechenheim.
Claims (1)
COOH i
COOH
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI46680D DE603760C (en) | 1933-03-04 | 1933-03-04 | Process for the preparation of condensation products of azo dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI46680D DE603760C (en) | 1933-03-04 | 1933-03-04 | Process for the preparation of condensation products of azo dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE603760C true DE603760C (en) | 1934-10-09 |
Family
ID=7191804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI46680D Expired DE603760C (en) | 1933-03-04 | 1933-03-04 | Process for the preparation of condensation products of azo dyes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE603760C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2228091A1 (en) * | 1973-05-03 | 1974-11-29 | Ici Ltd |
-
1933
- 1933-03-04 DE DEI46680D patent/DE603760C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2228091A1 (en) * | 1973-05-03 | 1974-11-29 | Ici Ltd |
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