DE447015C - Process for the representation of dyes - Google Patents

Process for the representation of dyes

Info

Publication number
DE447015C
DE447015C DEF58960D DEF0058960D DE447015C DE 447015 C DE447015 C DE 447015C DE F58960 D DEF58960 D DE F58960D DE F0058960 D DEF0058960 D DE F0058960D DE 447015 C DE447015 C DE 447015C
Authority
DE
Germany
Prior art keywords
parts
weight
dyes
dye
brown
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
DEF58960D
Other languages
German (de)
Inventor
Dr Bernhard Deicke
Robert Schmidlin
Dr Karl Thiess
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEF58960D priority Critical patent/DE447015C/en
Application granted granted Critical
Publication of DE447015C publication Critical patent/DE447015C/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

Description

Verfahren zur Darstellung von Farbstoffen Zusatz zum Patent 436 943 Es ist gefunden worden, daß man besonders wertvolle, in Wasser mehr oder wen1-ger leicht lösliche Farbstoffe erhält, die tiezische Fasern in grüngelben bis braunroten. licht- und walkechten Tönen anfärben, wenn man i, 3-Dihalogen-4, 6--dinitrobenzol oder seine S,ubstitutionsprodukte mit zwei Molekülen 4-Anvnodiphenylaminsulfosäuren oder deren Substitutionsprodukten kondensiert.Process for the preparation of dyes Addition to patent 436 943 It has been found that you can get particularly valuable, more or less in water Easily soluble dyes are obtained, the tiger fibers in green-yellow to brown-red. Color light- and whale-fast shades if i, 3-dihalo-4, 6 - dinitrobenzene or its substitution products with two molecules of 4-anodiphenylamine sulfonic acids or their substitution products condensed.

Die Kondensation erfolgt unter Austritt der beiden Halogenatome und wird zweckmäßig in Wasser bei Kochtemperatur unter Zusatz von säurebindenden Mitteln vorgenommen und verläuft mit sehr guter Ausbeute. Zur Beschleunigung der Reaktion können., wi° bei Halagenaustauschreaktionen üblich, Katalysatoren, z. B. Kupferverbindungen, oder auch kleine Mengen organischer Lösungsmittel, wie z. B. Alkohol, zugesetzt werden. Die Anwendung von Druck ist in den meisten Fällen nicht nötig. Breispiele i. 23,7 Gewichtsteile i, 3-Dichl;or-4,. 6-rdi:-nitrobenzol werden in der i 5fachen Menge Wasser, dem :etwas Alkohol hinzugefügt ist, suspendiert. Dann läßt man innerhalb 15 Stunden .diese Suspension in eine sodaalkalische Lösung, hergestellt aus 61,8 Gewichtsteilen 4' - Nitro - 4 - amino diphenylamin-2'-sulfosäure in 4oo Teilen Wasser und 24 Gewichtsteilen calcinierter Soda, einlaufen. Es tritt unter Braunfärbung Lösung ein. Nachdem einige Stunden nachgekocht worden ist, wird die tiefbraun gefärbte Lösung heiß filtriert und aus dem Filtrat das Salz des Farbstoffes mit Chlorkalium oder Chlornatrium ausgesalzen. Er färbt Wolle aus schwach saurem Bade in walk- und lichtechten, sehr farbstarken gelben Tönen an. Denn Farbstoff kommt folgendes Formelbild zu.: 2. Ersetzt man im Beispiel i die 4'-Nitro-4-am.nodiphenylamin-2'-sulfosäure durch 25,8 Gewichtsteile 4-Aminodiphenyla:min-2-sulfos,äure, so färbt der entstandene Farbstoff die tierische Faser walk- und lichtecht leuchtend braungelb an. Dem Farbstoff kommt folgendes Formelbild zu: 3. Arbeitet man nach Beispiel i unter Ersatz der dort verwendeten 4'-Nitro-4-aminodiphenylanün-2'-sulfosäure durch 56 Gewichtsteile 4'-Methyl-4-aminodiphenylamin-2-sulfosäure, so erhält man einen Farbstoff, der Wolle in gelbbraunen Tönen anfärbt. Dem Farbstoff entspricht folgendes Formelbild: 4. 25,1 Gewichtsteile 2, 6-Dichlor-3, 5-;dinitrotoluol werden mit 5oo Teilen Wasser, in dem 3o Gewichtsteile ,calcinierte Soda gelöst sind, und mixt 52,8 Gewichtsteilen 4-Anvnodiphenylamin-2-sulfosäure vereinigt. Nach Zugabe von i/2 Gewichtsteil Kupfersulfat wird 2o Situnden.gekocht. Dann wird die entstandene, tief rotbraun gefärbte Lösung filtriert und der Farbstoff ausgesalzen. Er färbt Wolle licht- und walkecht braun:. Dem Farbstoff kommt folgendes Formelbild zu: The condensation takes place with the escape of the two halogen atoms and is expediently carried out in water at boiling temperature with the addition of acid-binding agents and proceeds with very good yield. To accelerate the reaction can., Wi ° common in halogen exchange reactions, catalysts such. B. copper compounds, or small amounts of organic solvents, such as. B. alcohol, can be added. In most cases it is not necessary to apply pressure. Examples i. 23.7 parts by weight of i, 3-dichloro; or-4 ,. 6-rdi: -nitrobenzene are suspended in i 5 times the amount of water to which: some alcohol has been added. Then, within 15 hours, this suspension is allowed to run into a soda-alkaline solution prepared from 61.8 parts by weight of 4'-nitro-4-amino diphenylamine-2'-sulfonic acid in 400 parts of water and 24 parts by weight of calcined soda. It occurs with a brown coloration of the solution. After boiling for a few hours, the deep brown solution is filtered hot and the salt of the dye is salted out of the filtrate with potassium chloride or sodium chloride. He dyes wool from a weakly acidic bath in full and lightfast, very strong yellow tones. Because the dye has the following formula: 2. If in example i the 4'-nitro-4-am.nodiphenylamine-2'-sulfonic acid is replaced by 25.8 parts by weight of 4-aminodiphenyla: min-2-sulfos, acid, so the color the resulting dye turns the animal fibers into a bright brown-yellow color fast and lightfast. The dye has the following formula: 3. If you work according to Example i, replacing the 4'-nitro-4-aminodiphenylanün-2'-sulfonic acid used there with 56 parts by weight of 4'-methyl-4-aminodiphenylamine-2-sulfonic acid, a dye is obtained which has wool in yellow-brown tones. The following formula corresponds to the dye: 4. 25.1 parts by weight of 2,6-dichloro-3,5; dinitrotoluene are combined with 500 parts of water in which 30 parts by weight of calcined soda are dissolved, and 52.8 parts by weight of 4-anodiphenylamine-2-sulfonic acid are combined. After adding 1/2 part by weight of copper sulfate, it is boiled for 20 hours. Then the resulting, deep red-brown colored solution is filtered and the dye is salted out. It dyes wool light- and millfast brown :. The dye has the following formula:

Claims (1)

PATENTANSPRUC:.: Verfahren zur Darstellung von Farbstoffen nach Patent 436943, dadurch gekennzeichnet, daß man i, 3-Dihalogen-4, 6-dinitro'benzol oder seine Su'bstituiionsprddukte mit zwei Molekülen. 4 - Aminodiphenylamnsulfösäuren roidex de= Derivaten 'kondensiert.PATENT CLAIM:.: Process for the representation of dyes according to patent 436943, characterized in that i, 3-dihalo-4, 6-dinitro'benzene or his Su'bstituiionsprddukte with two molecules. 4 - aminodiphenylamine sulfoic acids roidex de = derivatives' condensed.
DEF58960D 1925-05-23 1925-05-23 Process for the representation of dyes Expired DE447015C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF58960D DE447015C (en) 1925-05-23 1925-05-23 Process for the representation of dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF58960D DE447015C (en) 1925-05-23 1925-05-23 Process for the representation of dyes

Publications (1)

Publication Number Publication Date
DE447015C true DE447015C (en) 1929-02-08

Family

ID=7108684

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF58960D Expired DE447015C (en) 1925-05-23 1925-05-23 Process for the representation of dyes

Country Status (1)

Country Link
DE (1) DE447015C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741470C (en) * 1936-02-19 1943-11-11 Ig Farbenindustrie Ag Process for the production of acidic wool dyes
DE748824C (en) * 1936-03-18 1945-01-18 Process for the production of acidic wool dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741470C (en) * 1936-02-19 1943-11-11 Ig Farbenindustrie Ag Process for the production of acidic wool dyes
DE748824C (en) * 1936-03-18 1945-01-18 Process for the production of acidic wool dyes

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