DE479373C - Process for the preparation of metal compounds of dyes - Google Patents

Process for the preparation of metal compounds of dyes

Info

Publication number
DE479373C
DE479373C DEI28322D DEI0028322D DE479373C DE 479373 C DE479373 C DE 479373C DE I28322 D DEI28322 D DE I28322D DE I0028322 D DEI0028322 D DE I0028322D DE 479373 C DE479373 C DE 479373C
Authority
DE
Germany
Prior art keywords
dyes
metal compounds
preparation
parts
weight
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
DEI28322D
Other languages
German (de)
Inventor
Dr Hans Krzikalla
Dr Werner Mueller
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 DEI28322D priority Critical patent/DE479373C/en
Application granted granted Critical
Publication of DE479373C publication Critical patent/DE479373C/en
Expired legal-status Critical Current

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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
    • C09B45/00Complex metal compounds of azo dyes
    • C09B45/01Complex metal compounds of azo dyes characterised by the method of metallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von Metallverbindungen von Farbstoffen Behandelt man in Wasser schwer- oder unlösliche Farbstoffe, die zur Bildung komplexer Metallverbindungen befähigt sind, mit wäßrigen Lösungen von Metallverbindungen, so entstehen die komplexen. Metallverbindun; gen der Farbstoffe nicht oder nur sehr unvollständig.Process for the preparation of metal compounds treated by dyes dyes that are sparingly soluble or insoluble in water lead to the formation of complex metal compounds are able to work with aqueous solutions of metal compounds, so the complex arises. Metal connection; gen of the dyes not or only very incompletely.

Auch die bekannte Chromierung mit stark alkalischen komplexen Chromitlösungen, die durch Einwirkung von, alkalischen Chromoxydsuspensionen auf organische Hydroxylverbindungen erst hergestellt werden müssen., führen nicht immer zum Ziele, besonders dann nicht, wenn man in saurem Medium arbeiten muß.Also the well-known chroming with strongly alkaline complex chromite solutions, those caused by the action of, alkaline chromium oxide suspensions on organic hydroxyl compounds first have to be produced., do not always lead to the goal, especially not then, if you have to work in an acidic medium.

Es wurde nun gefunden, daß sich die komplexen Metallverbindungen der Farbstoffe sehr glatt -und vollständig bilden, wenn man die Einwirkung in Gegenwart von geeigneten organischen Lösungsmitteln, zweckmäßig solchen, die unter den angewandten Bedingungen in Wasser wenigstens teilweise löslich sind und die Farbstoffe oder deren Metallverb.indungen zu lösen vermögen, erfolgen läßt. Im übrigen kann die Einwirkung der Metallverbindungen auf die Farbstoffe in beliebiger Weise, z. B. mit oder ohne Anwendung von Druck usw., erfolgen. Als, geeignete Lösungsmittel seien beispielsweise genannt ein- oder mehrwertige Alkohole, wie, Methyl-, Äthyl-, Propyl-, Butylalkohole usw., Glykol und dessen Äther oder Ester, Polyglykol, Glycerin, ferner Äthylenchlorhydrin, Triäthanolamin, Thiodiglykol, Phenole, Aceton und andere Ketone usw. Auch Gemische von organischen Lösungsmitteln sind verwendbar. Beispiel i 28 Gewichtsteile des Azofarbstoffs aus der Diazoverbindung von p-Clilor-o-aminophenol und ß-Naphthol werden mit etwa ¢0o Volumteilen Äthylalkohol und 12o Gewichtsteilen einer wäßrigen Lösung, die 7,6 Gewichtsteile Chromoxyd und 13,5 Gewichtsteile Ameisensäure (85prozentig) enthält, etwa Stunden bei 12o° im Autoklaven erhitzt. Der erhaltene, teilweise gelöste Farbstoff wird durch Zugabe von Wasser oder durch Abdestillieren des Alkohols gefällt, abgesaugt und gewaschen. Man erhält nach dem Trocknen einen violetten Farbatoff, der in alkoholischer Lösung mit Alkali nicht mehr umschlägt. Versucht man die gleichen chromhaltigen Farbstoffe in Wasser unter sonst gleichen Bedingungen darzustellen, so bleibt ein großer Teil des Ausgangsfarbstoffes unverändert.It has now been found that the complex metal compounds of the dyes form very smoothly and completely when the action is taken in the presence of suitable organic solvents, expediently those which are at least partially soluble in water under the conditions used and the dyes or their metal compounds . Able to resolve ties, can take place. In addition, the action of the metal compounds on the dyes in any way, for. B. with or without the application of pressure, etc., take place. Suitable solvents are, for example, mono- or polyhydric alcohols such as methyl, ethyl, propyl, butyl alcohols, etc., glycol and its ethers or esters, polyglycol, glycerol, and also ethylene chlorohydrin, triethanolamine, thiodiglycol, phenols, acetone and other ketones, etc. Mixtures of organic solvents can also be used. Example i 28 parts by weight of the azo dye from the diazo compound of p-Clilor-o-aminophenol and ß-naphthol are mixed with about ¢ 0o parts by volume of ethyl alcohol and 12o parts by weight of an aqueous solution containing 7.6 parts by weight of chromium oxide and 13.5 parts by weight of formic acid (85 percent) contains, heated for about hours at 12o ° in the autoclave. The partially dissolved dye obtained is precipitated by adding water or by distilling off the alcohol, filtered off with suction and washed. After drying, a violet dye is obtained which no longer changes in alcoholic solution with alkali. If one tries to produce the same chromium-containing dyes in water under otherwise identical conditions, a large part of the starting dye remains unchanged.

In analoger Weise läßt sich mit Kupferformiat die entsprechende Kupferverbindung darstellen. An Stelle von Äthylalkohol ist auch Aceton verwendbar.The corresponding copper compound can be prepared in an analogous manner with copper formate represent. Acetone can also be used instead of ethyl alcohol.

Beispiel 2 32 Gewichtsteile des Azofarbstoffs aus der Diazoverbindung von p-Chlor-o-aminophenol und 3-Methyl-i-phenyl-5-pyrazolon werden mit ¢0o Volumteilen Äthylalkohol und der gleichen Chromformatlösung, wie in Beispiel i angegeben; etwa 3 bis q. Stunden im Autoklaven aufs i2o° erhitzt. Durch Zusatz von Wasser zurr Reaktionsgemisch erhält man die rote Chromverbindung des Farbstoffs. An Stelle des Äthylalkohols kann bei der Darstellung z. B. auch ein Gemisch aus Methyl- und Benzylalkohol verwendet werden.Example 2 32 parts by weight of the azo dye from the diazo compound of p-chloro-o-aminophenol and 3-methyl-i-phenyl-5-pyrazolone are ¢ 0o parts by volume Ethyl alcohol and the same chromium format solution as given in example i; approximately 3 to q. Hours in the autoclave heated to i2o °. By adding water to the reaction mixture the red chromium compound of the dye is obtained. Instead of ethyl alcohol can be used in the representation z. B. also used a mixture of methyl and benzyl alcohol will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Metallverbindungen von Farbstoffen, dadurch gekennzeichnet, daß man in Wasser schwer- oder nichtlösliche, zur Bildung komplexer Metallverbindungen befähigte Farbstoffe mit-Metallverbindungen in Gegenwart von geeigneten organischen Lösungsmitteln behandelt.PATENT CLAIM: Process for the production of metal compounds from Dyes, characterized in that sparingly or insoluble in water, Dyes with metal compounds capable of forming complex metal compounds treated in the presence of suitable organic solvents.
DEI28322D 1926-06-15 1926-06-16 Process for the preparation of metal compounds of dyes Expired DE479373C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI28322D DE479373C (en) 1926-06-15 1926-06-16 Process for the preparation of metal compounds of dyes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE272908X 1926-06-15
DEI28322D DE479373C (en) 1926-06-15 1926-06-16 Process for the preparation of metal compounds of dyes

Publications (1)

Publication Number Publication Date
DE479373C true DE479373C (en) 1929-07-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEI28322D Expired DE479373C (en) 1926-06-15 1926-06-16 Process for the preparation of metal compounds of dyes

Country Status (1)

Country Link
DE (1) DE479373C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743172C (en) * 1937-02-06 1943-12-20 Geigy Ag J R Process for the production of chromium complex compounds of mordant dyes which are soluble in organic solvents containing oxy groups
DE931061C (en) * 1952-10-10 1955-08-01 Basf Ag Process for the production of metal-containing azo dyes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743172C (en) * 1937-02-06 1943-12-20 Geigy Ag J R Process for the production of chromium complex compounds of mordant dyes which are soluble in organic solvents containing oxy groups
DE931061C (en) * 1952-10-10 1955-08-01 Basf Ag Process for the production of metal-containing azo dyes

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