Número de publicación: WO2016008848
Fecha de publicación: 21 de enero de 2016
Solicitante: SCHOTT AG
The invention relates to a ceramic ink jet printing ink for low-expansion glass and/or glass-ceramic as carrier substrate, wherein the carrier substrate has a thermal expansion coefficient αsub of < 5.0 ppm/K, comprising at least one lead-free and cadmium-free glass frit, at least one pigment, at least one dispersion agent, at least one solvent and at least one binder, wherein the glass frit has the following composition: 45-85 wt% SiO2; 0–20 wt%, preferably 2–20 wt% Al2O3; 0–23 wt%, preferably 0–18 wt% B2O3; 0–20 wt%, preferably 0-12 wt% Bi2O3; 0–15 wt%, preferably 1–15 wt%, more preferably 1-9 wt% alkali oxides; 0–18 wt% alkaline earth oxides; 0–12 wt%, preferably 0–7 wt% ZnO; 0–3 wt% TiO2; 0–5 wt% ZrO2; 0–2 wt% halides, wherein as small as possible a difference Δα = α- αsub exists between the thermal expansion coefficient α of the glass frit and the thermal expansion coefficient αsubof the carrier substrate in the form of low-expansion glass and/or low-expansion glass-ceramic, wherein the glass frit preferably has a thermal expansion coefficient of α < 6 ppm/K, and preferably Δα < 6 ppm/K, especially preferably Δα < 4 ppm/K, very especially preferably Δα < 3 ppm/K.
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