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AssigneePilkington Group Limited
InventorsAngelo Conti, Giovanni Gagliardi, Leandro Grassia
Estimating the term…
A glazing comprises a glass substrate having an enamel layer adhered to at least a first surface portion, the enamel comprising 20 to 80 wt % frit and 10 to 50 wt % inorganic pigment. The thickness of the enamel layer is 2 μm to 50 μm, and the inorganic pigment has an infra-red reflectance such that the infra-red reflectance of the first portion of the glass substrate surface is 37% or higher over a region in the wavelength range 800 nm to 2250 nm. The glazing may be laminated, and may be a vehicle windscreen. A process for producing the glazing involves applying ink to a glass substrate, curing the ink thereby producing an enamel adhered to the glass substrate, and shaping the glass substrate by heating to a temperature above 570° C. The preferred inorganic pigments are of the Fe and/or Cr type in spinel, haematite or corundum crystal form.
A laminated glazing comprising a first glass ply having a layer of enamel adhered to at least a first portion of a surface of the first glass ply, a second glass ply, and a polymer ply of interlayer which extends between the first and second glass plies, the enamel comprising 20 to 80 wt % frit and 10 to 50 wt % inorganic pigment, wherein the thickness of the layer of enamel is in the range 2 μm to 50 μm, the inorganic pigment having an infra-red reflectance such that the infra-red reflectance of the first portion of the surface of the first glass ply is 37% or higher over a region in the wavelength range 800 nm to 2250 nm.
A process for producing a shaped laminated glazing, the process comprising,
Dependencies are inferred from the claim text.