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DE1002100B - Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium - Google Patents

Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium

Info

Publication number
DE1002100B
DE1002100B DEB33113A DEB0033113A DE1002100B DE 1002100 B DE1002100 B DE 1002100B DE B33113 A DEB33113 A DE B33113A DE B0033113 A DEB0033113 A DE B0033113A DE 1002100 B DE1002100 B DE 1002100B
Authority
DE
Germany
Prior art keywords
finely divided
copper phthalocyanine
production
tetrasulfonic acid
divided copper
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.)
Pending
Application number
DEB33113A
Other languages
German (de)
Inventor
Dr Erich Jutz
Dr Fritz Muehlbauer
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB33113A priority Critical patent/DE1002100B/en
Publication of DE1002100B publication Critical patent/DE1002100B/en
Pending 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
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0032Treatment of phthalocyanine pigments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Description

Verfahren zur Herstellung von feinverteiltem kupferphthalocyanin-4, 4', 4", 4"'-tetrasulfonsaurem Barium Es ist bekannt, daß das Bariumsalz der 4, 4', 4", 4"'- Kupferphthalocyanintetrasulfonsäure sich durch einen außerordentlich klaren, grünstichigblauen Farbton und gute Echtheitseigenschaften auszeichnet. Es ist jedoch bisher nicht in befriedigender Weise gelungen, dieses Pigment in eine Form überzuführen, die es für die Anwendung, z. B. für graphische Zwecke, geeignet macht. Der in üblicher Weise durch Trocknen des wäßrigen Preßgutes erhaltene Farbstoff besteht aus sehr harten, groben Körnern, die in bekannter Art, etwa durch Vermahlen, nicht in eine färberisch brauchbare Form gebracht werden können.Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium It is known that the barium salt of 4, 4 ', 4 ", 4" '- copper phthalocyanine tetrasulfonic acid is characterized by an extremely clear, greenish blue shade and good fastness properties. However, it is has not yet succeeded in a satisfactory manner in converting this pigment into a form which it is for the application, e.g. B. for graphic purposes, makes it suitable. The one in usual Way obtained by drying the aqueous pressed material consists of very hard, coarse grains, which in a known way, for example by grinding, not in a color usable form can be brought.

Es wurde nun gefunden, daß man das genannte Pigment in sehr weichem, feinverteiltem Zustand erhält, wenn man das nach dem Fällen des Bariumsalzes beim Filtrieren erhaltene, noch feuchte Gut mit niedrigmolekularen, mindestens noch teilweise in Wasser löslichen Alkoholen oder mit Aceton behandelt. Vorzugsweise kommen Alkohole mit 1 bis 4 Kohlenstoffatomen in Betracht, also Methanol, Äthanol, n-Propanol, Isopropanol, n-Butanol und Isobutanol.It has now been found that the pigment mentioned can be used in very soft, finely divided state is obtained if this is achieved after the precipitation of the barium salt Filtration obtained, still moist material with low molecular weight, at least partially treated with alcohols soluble in water or with acetone. Alcohols are preferred with 1 to 4 carbon atoms, i.e. methanol, ethanol, n-propanol, isopropanol, n-butanol and isobutanol.

Bei Anwendung der in Wasser völlig löslichen Mittel rührt man das feuchte Pigment mit dem Mittel an, erwärmt kurz, saugt das Pigment ab und trocknet es. Bei Anwendung von teilweise wasserlöslichen Alkoholen, z. B. Butanol, verfährt man z. B. in der Weise, daß man den Filterkuchen in einem geschlossenen Gefäß unter Rühren und Rückfluß in einem Kreislaufabscheider erhitzt und die wäßrig alkoholische Schicht abtrennt. Nach dem Absaugen und Trocknen erhält man den Farbstoff in feinverteilter Form. Das Verfahren kann auch unter vermindertem Druck durchgeführt werden.When using the agents, which are completely soluble in water, stir it wet pigment with the agent, heats up briefly, sucks the pigment off and dries it. When using partially water-soluble alcohols, e.g. B. butanol, proceeds one z. B. in such a way that the filter cake in a closed vessel under Stir and reflux in a circulating separator and the aqueous alcoholic Layer separates. After filtering off with suction and drying, the dyestuff is obtained in finely divided form Shape. The process can also be carried out under reduced pressure.

Als Ausgangsgut zur Herstellung des Farbstoffes kann z. B. das zweifach saure Bariumsalz der 4-Sulfophthalsäure dienen, wie man es bei der Reinigung der rohen Sulfophthalsäüre erhält. Es wird den zur Phthalocyaninbildung üblichen Bedingungen (Harnstoffschmelze bei 170°) unterworfen und das erhaltene Bariumsalz durch Auskochen mit verdünnter Salzsäure gereinigt und hierbei in die freie Sulfonsäure übergeführt. Die Umwandlung in die Bariumverbindung wird bewirkt, indem man die wäßrige Lösung der Sulfonsäure in Gegenwart von überschüssigem Ammoniak mit Bariumchloridlösung behandelt.As a starting material for the preparation of the dye can, for. B. twice acidic barium salt of 4-sulfophthalic acid is used as it is in the purification of the raw sulfophthalic acid. The usual conditions for phthalocyanine formation are used (Urea melt at 170 °) and the barium salt obtained by boiling Purified with dilute hydrochloric acid and converted into the free sulfonic acid. The conversion to the barium compound is effected by adding the aqueous solution the sulfonic acid in the presence of excess ammonia with barium chloride solution treated.

Während sich metallfreies Phthalocyanin nach bekannten Verfahrensweisen durch Vermahlen, etwa in einer Stabmühle, unter Zugabe organischer Flüssigkeiten in die färberisch wertvolle, feinverteilte, gegen Lösungsmittel stabile Form der ß-Modifikation des metallfreien Phthalocyanins umwandeln läßt, wird beim vorliegenden Verfahren ohne Ausführung eines Mahlprozesses allein durch Behandeln mit niedermolekularen Alkoholen oder mit Aceton, beispielsweise in einem Rührgefäß, eine beim Trocknen ihre feine Verteilung und ihre Farbstärke nicht verlierende Form einer Kupferphthalocyanin-tetrasulfonsäure erhalten.While metal-free phthalocyanine is made according to known procedures by grinding, for example in a rod mill, with the addition of organic liquids in the dye-valuable, finely divided, solvent-stable form of Can convert ß-modification of the metal-free phthalocyanine, is in the present Method without performing a grinding process solely by treating with low molecular weight Alcohols or with acetone, for example in a stirred vessel, one during drying Form of a copper phthalocyanine tetrasulfonic acid, which does not lose its fine distribution and color strength obtain.

Die in folgenden Beispielen genannten Teile sind Gewichtsteile. Beispiel 1 Man verrührt 60 Teile frisch gefälltes, wasserhaltiges, etwa 25o/oiges kupferphthalocyanin-4, 4', 4", 4"'-tetrasulfonsaures Barium bei Raumtemperatur im geschlossenen Rührgefäß 1/z Stunde lang mit 200 Teilen Methanol und erhitzt dann das Gemisch 10 Minuten lang unter Rückfluß. Dann läßt man es abkühlen, saugt den Farbstoff ab, wäscht ihn mit Methanol aus und trocknet ihn. Man erhält so das Bariumsalz als leuchtend grünstichigblaues, lockeres Pulver, das in dieser Form z. B. hervorragend für den graphischen Druck geeignet ist.The parts mentioned in the following examples are parts by weight. example 1 60 parts of freshly precipitated, water-containing, about 25% copper phthalocyanine-4 are stirred. 4 ', 4 ", 4"' - tetrasulfonic acid barium at room temperature in a closed stirred vessel 1/2 hour with 200 parts of methanol and then heated the mixture for 10 minutes long under reflux. Then it is allowed to cool, the dye is suctioned off and washed with methanol and dry it. The barium salt is thus obtained as a bright greenish blue, loose powder, which in this form z. B. excellent for graphic printing suitable is.

An Stelle von Methanol kann man auch Äthanol, Isopropanol oder Aceton anwenden.Instead of methanol, you can also use ethanol, isopropanol or acetone use.

Beispiel 2 60 Teile des in Beispiel 1 angewandten feuchten Bariumsalzes werden in 400 Teilen n-Butanol im geschlossenen Rührgefäß 1/z Stunde lang unter Rückfluß in einem Kreislaufabscheider so lange erhitzt, bis im Abscheider kein Wasser mehr auftritt. Man läßt erkalten, saugt den Farbstoff ab und trocknet ihn. Das Butanol kann nach dem Abtrennen des Wassers erneut verwendet werden.Example 2 60 parts of the moist barium salt used in Example 1 are in 400 parts of n-butanol in a closed stirred vessel for 1 / z hour The reflux is heated in a circulating separator until there is no water in the separator occurs more. It is allowed to cool, the dye is filtered off with suction and dried. That Butanol can be used again after the water has been separated off.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von feinverteiltem kupferphthalocyänin-4," 4', 4", 4"'-tetrasulfonsaue rem Barium, dadurch gekennzeichnet, daß man das feuchte Bariumsalz mit niedrigmolekularen, mindestens teilweise wasserlöslichen Alkoholen oder mit Aceton behandelt. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 861301. Claim: Process for the production of finely divided copper phthalocyanine-4, "4 ', 4", 4 "' - tetrasulfonic acidic barium, characterized in that the moist barium salt is treated with low molecular weight, at least partially water-soluble alcohols or with acetone : German Patent No. 861301.
DEB33113A 1954-10-23 1954-10-23 Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium Pending DE1002100B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB33113A DE1002100B (en) 1954-10-23 1954-10-23 Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB33113A DE1002100B (en) 1954-10-23 1954-10-23 Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium

Publications (1)

Publication Number Publication Date
DE1002100B true DE1002100B (en) 1957-02-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEB33113A Pending DE1002100B (en) 1954-10-23 1954-10-23 Process for the production of finely divided copper phthalocyanine-4, 4 ', 4 ", 4"' - tetrasulfonic acid barium

Country Status (1)

Country Link
DE (1) DE1002100B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861301C (en) * 1950-03-01 1952-12-29 Ciba Geigy Process for the production of strongly colored, metal-free phthalocyanine of the ‰ ‰ form

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861301C (en) * 1950-03-01 1952-12-29 Ciba Geigy Process for the production of strongly colored, metal-free phthalocyanine of the ‰ ‰ form

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