DE528607C - Process for the production of chromium-containing dyes - Google Patents

Process for the production of chromium-containing dyes

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Publication number
DE528607C
DE528607C DE1930528607D DE528607DD DE528607C DE 528607 C DE528607 C DE 528607C DE 1930528607 D DE1930528607 D DE 1930528607D DE 528607D D DE528607D D DE 528607DD DE 528607 C DE528607 C DE 528607C
Authority
DE
Germany
Prior art keywords
chromium
production
acid
parts
dyes
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
DE1930528607D
Other languages
German (de)
Inventor
Dr Hans Krzikalla
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
Application granted granted Critical
Publication of DE528607C publication Critical patent/DE528607C/en
Expired legal-status Critical Current

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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
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/38—Preparation from compounds with —OH and —COOH adjacent in the same ring or in peri position
    • C09B45/40—Chromium compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Coloring (AREA)

Description

Verfahren zur Herstellung von chromhaltigen Farbstoffen Es wurde gefunden, daß man wertvolle chromhaltige Farbstoffe erhält, wenn man die I aus dianotierten sulfonierten Aminen, die keine Hydroxylgruppe enthalten, und ß-Resorcylsäurc erhältlichen Azofarbstoffe mit chromabgebenden Mitteln behandelt. Die Chromierung der Farbstoffe kann beispielsweise durch Erhitzen auf dem Wasserbad oder durch Kochen mit Lösungen von Chromsalzen, z. B. Chromformiat. -acetat, -fluor id usw., durchgeführt «-erden. Die erhaltenen chromhaltigen Farbstoffe geben besonders auf Leder schöne, volle, gleichmäßige Braunfärbungen von guter Lichtechtheit.Process for the production of chromium-containing dyes It has been found that valuable chromium-containing dyes are obtained if the I from dianotized sulfonated amines that do not contain a hydroxyl group, and ß-resorcylic acid Azo dyes treated with chromium donating agents. The chromating of the dyes can for example by heating on a water bath or by boiling with solutions of chromium salts, e.g. B. chromium formate. -acetate, -fluoride, etc., carried out «-erden. The chromium-containing dyes obtained give beautiful, full, uniform brown colorations with good lightfastness.

Beispiel i 38 C#,e@viclit-;teile des Azofarbstoffes aus dianotierter \Ietanilsiiure-> ß-Resorcylsäure ;-erden mit etwa 5oo Teilen Wasser und .4o Teilen einer 27"1, Cr,0, enthaltenden Chromoxydhvdratpaste und 21 Teilen 85prozentiger Ameisensäure unter Rückfluß etwa i Stunde gekocht und eingedampft. Man erhält ein braunes Pulver, das Leder in sehr schönem gelbbraunem Ton lichtecht anfärbt und ein gutes Egalisiervermögen auf Chromleder besitzt.Example i 38 C #, e @ viclit-; parts of the azo dye from dianotated acetanilic acid> β-resorcylic acid Ground with about 500 parts of water and .40 parts of a 27 "1, Cr, 0, containing chromium oxide hydrate paste and 21 parts of 85 percent formic acid under reflux for about 1 hour and evaporated. A brown powder is obtained, the leather in a very beautiful yellow-brown tone dyes lightfast and has good leveling properties on chrome leather.

Die auf gleiche Weise aus dem entsprechenden Sulfanilsäurefarbstoff hergestellte komplexe Chromverbindung färbt Leder mit ähnlichen Eigenschaften nur etwas roter an. Beispiel z 42 Gewichtsteile des Azofarbstoties aus dianotierter Naphthionsäure und ß-Resorcylsäure werden wie in Beispiel i chromiert und mit festem Kochsalz ausgesalzen und getrocknet. Man erhält einen Farbstoff, der Leder echt braun anfärbt. In ähnlicher `.'eise können auch andere Farbstoffe aus anderen dianotierten Naplithylaminsulfonsiiuren und Resorcy-lsäure hergestellt werden.The same way from the corresponding sulfanilic acid dye The complex chromium compound produced only stains leather with similar properties a little redder. Example z 42 parts by weight of the azo dye from dianotized Naphthionic acid and ß-resorcylic acid are chromed as in Example i and with solid Salted out table salt and dried. A dye is obtained that makes the leather real stains brown. In a similar way, other dyes can also be dianotized from other Naplithylamine sulfonic acids and resorcyclic acid are produced.

An Stelle von Chromformiat können auch andere Chromsalze, wie Chromacetat, Chromfluorid u. dgl., verwendet werden.Instead of chromium formate, other chromium salts such as chromium acetate, Chromium fluoride and the like can be used.

Beispiel 3 39 Gewichtsteile des Azofarbstoffes aus dianotierter Aminoazobenzolsulfonsäure und Resorcvlsäure werden in etwa 8oo Teilen Wasser und qo Teilen einer etwa 25 °/" Cr@O,; haltigen Chromoxydhydratpaste und 2o Teflen 85prozentiger Ameisensäure i bis 2 Stunden gekocht und dann ausgesalzen. Man erhält einen Farbstoff, der Leder satt rot anfärbt und gut lichtecht ist.EXAMPLE 3 39 parts by weight of the azo dye from dianotized aminoazobenzenesulfonic acid and resorcvic acid are boiled in about 800 parts of water and qo parts of a chromium oxide hydrate paste containing about 25 % Cr @ O, and 20 parts of 85% formic acid for 1 to 2 hours and then salted out Dye that gives leather a deep red color and is lightfast.

Claims (1)

PATEN TANSI'RU,CIi @t Verfahren zur Herstellung von chrom- haltigen Parlistöfen, dadurch gekenn-
zeichnet, daß man die Azofarbstoffe aus diazotierten sulfonierten Aminen, die keine Hydroxylgruppen enthalten, und P-Resorcylsäure mit Chromabgebenden Mitteln behandelt. PATEN TANSI'RU, CIi @t Process for the production of chrome containing parlist ovens, thus identifiable
draws that the azo dyes from diazotized sulfonated amines, which contain no hydroxyl groups, and P-resorcylic acid are treated with chromium donating agents.
DE1930528607D 1930-05-01 1930-05-01 Process for the production of chromium-containing dyes Expired DE528607C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE528607T 1930-05-01

Publications (1)

Publication Number Publication Date
DE528607C true DE528607C (en) 1931-07-01

Family

ID=6553747

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1930528607D Expired DE528607C (en) 1930-05-01 1930-05-01 Process for the production of chromium-containing dyes

Country Status (1)

Country Link
DE (1) DE528607C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060167A (en) * 1958-01-17 1962-10-23 Durand & Huguenin Ag Process for the manufacture of new metallizable 4-hydroxy-5-carboxyphenyl-2:2'-dihydroxy-azo-dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060167A (en) * 1958-01-17 1962-10-23 Durand & Huguenin Ag Process for the manufacture of new metallizable 4-hydroxy-5-carboxyphenyl-2:2'-dihydroxy-azo-dyestuffs

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