DE518617C - Process for the production of a white texturing agent for enamels and glazes - Google Patents

Process for the production of a white texturing agent for enamels and glazes

Info

Publication number
DE518617C
DE518617C DED49365D DED0049365D DE518617C DE 518617 C DE518617 C DE 518617C DE D49365 D DED49365 D DE D49365D DE D0049365 D DED0049365 D DE D0049365D DE 518617 C DE518617 C DE 518617C
Authority
DE
Germany
Prior art keywords
oxides
glazes
enamels
production
white
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
DED49365D
Other languages
German (de)
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.)
VER CHEMISCHE FABRIKEN KREIDL
Original Assignee
VER CHEMISCHE FABRIKEN KREIDL
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 VER CHEMISCHE FABRIKEN KREIDL filed Critical VER CHEMISCHE FABRIKEN KREIDL
Priority to DED49365D priority Critical patent/DE518617C/en
Application granted granted Critical
Publication of DE518617C publication Critical patent/DE518617C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/04—Opacifiers, e.g. fluorides or phosphates; Pigments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0009—Pigments for ceramics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0009—Pigments for ceramics
    • C09C1/0012—Pigments for ceramics containing zirconium and silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Glass Compositions (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

Verfahren zur Herstellung eines Weißtrübungsmittels für Emails und Glasuren Titandioxyd und Ceroxyd sind dank ihrer sehr hohen Brechungsexponenten, und da sie sich in feinster Verteilung herstellen lassen und in den Glasflüssen schwer löslich sind, ausgezeichnete Trübungsmittel. Sie weisen aber insofern eine unangenehme Erscheinung auf, als sie leicht der emaillierten oder glasierten Ware einen gelblichen Stich geben. In der Literatur ist darauf wiederholt hingewiesen worden. Die Ursache hiervon ist nicht genau festzustellen, da bei gleichem Ausgangsmaterial und gleichem Email schon kleine unbewußte Änderungen der Arbeitsweise eine verschiedene Intensivität der Verfärbung ergeben.Process for the production of a whitening agent for enamels and Glazes titanium dioxide and cerium oxide are thanks to their very high refraction exponents, and because they can be produced in the finest distribution and in the glass rivers are poorly soluble, excellent opacifiers. But to this extent they have a unpleasant appearance as they are easily enamelled or glazed give a yellowish tinge. This is repeatedly pointed out in the literature been. The cause of this cannot be determined precisely because the starting material is the same and the same email already small unconscious changes in the way of working a different one The intensity of the discoloration.

Nach vorliegender Erfindung wird nun dieser gelbliche Stich, den die beiden Oxyde als Trübungsmittel annehmen, beseitigt. Dies geschieht dadurch, daß man die beiden Oxyde mit geringen Mengen, etwa 2 bis io°/o, anderer farbloser Oxyde mehrwertiger Elemente, die im wesentlichen in der III., IV. und V._ Gruppe des periodischen Systems stehen, versetzt und diese Gemenge glüht. Als Zusätze kommen in Frage Aluminiumoxyd, Kaolin, Quarz, die farblosen Oxyde der seltenen Erden, Zinndioxyd, Zirkondioxyd, Antimonoxyde und Niobpentoxyd. Dieselbe Wirkung übt aber auch das Cer auf das Titan aus bzw. das Titan auf das Cer, so daß z. B. ein Titandioxyd, mit etwa 5 % Ceroxyd geglüht, ein einwandfreies Trübungsmittel ergibt. Es ist wohl anzunehmen, daß diese Zusätze farbloser Oxyde beim Glühprozeß die physikalisch-chemischen Eigenschaften des Titandioxyds und Ceroxyds so verändern, daß sie beim Einbrennen in den Emails oder Glasuren nicht mehr unter Auftreten des gelben Stiches verändert werden können, der jedenfalls auf stark gefärbte feste Lösungen mit färbenden Oxyden, die als Verunreinigungen in dem Trübungsmittel bereits vorhanden sind oder aus der Glasur stammen, zurückzuführen ist.According to the present invention, this yellowish tinge is now the accept both oxides as opacifiers, eliminated. This happens because the two oxides with small amounts, about 2 to 10 per cent., of other colorless oxides polyvalent elements, which are essentially in the III., IV. and V._ group of the periodic Systems stand, displaced and this mixture glows. Aluminum oxide can be used as additives, Kaolin, quartz, the colorless oxides of the rare earths, tin dioxide, zirconium dioxide, Antimony oxides and niobium pentoxide. However, the cerium also has the same effect on the titanium from or the titanium on the cerium, so that z. B. a titanium dioxide, with about 5% ceria annealed, results in a perfect opacifier. It can be assumed that this Additions of colorless oxides during the annealing process, the physico-chemical properties of the titanium dioxide and cerium oxide so that they are burned into the enamel or glazes can no longer be changed with the appearance of the yellow tinge, in any case on strongly colored solid solutions with coloring oxides, which are impurities in which opacifiers are already present or come from the glaze is.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung .eines Weißtrübungsmittels aus Titandioxyd und Ceroxyd für Emails, Glasuren usw., dadurch gekennzeichnet, daß man diese mit einigen Prozenten der weißen Oxyde mehrwertiger Elemente, insbesondere der III., IV. und V. Gruppe des periodischen Systems, wie Aluminiumoxyd, Kaolin, Quarz, die farblosen Oxyde der seltenen Erden, Zinndioxyd, Zirkondioxyd, Antimonoxyde und Nioboxyde, mischt und bei höheren Temperaturen glüht.PATENT CLAIM: Process for the production of a whitening agent of titanium dioxide and cerium oxide for enamels, glazes, etc., characterized in that one with a few percent of the white oxides of polyvalent elements, in particular of the III., IV. and V group of the periodic table, such as aluminum oxide, kaolin, Quartz, the colorless rare earth oxides, tin dioxide, zirconium dioxide, antimony oxides and niobium oxides, mixes and anneals at higher temperatures.
DED49365D 1925-12-10 1925-12-11 Process for the production of a white texturing agent for enamels and glazes Expired DE518617C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED49365D DE518617C (en) 1925-12-10 1925-12-11 Process for the production of a white texturing agent for enamels and glazes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE625260X 1925-12-10
DED49365D DE518617C (en) 1925-12-10 1925-12-11 Process for the production of a white texturing agent for enamels and glazes

Publications (1)

Publication Number Publication Date
DE518617C true DE518617C (en) 1931-02-18

Family

ID=25945625

Family Applications (1)

Application Number Title Priority Date Filing Date
DED49365D Expired DE518617C (en) 1925-12-10 1925-12-11 Process for the production of a white texturing agent for enamels and glazes

Country Status (1)

Country Link
DE (1) DE518617C (en)

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