Patent ID: 8784932

Claim:
A method of making a glass panel that is partially printed with a plurality of layers in the form of a print pattern which subdivides the panel into a plurality of discrete printed areas and/or a plurality of discrete unprinted areas, said layers being in substantially exact registration, said method comprising: (i) applying a plurality of layers to a sheet of glass, wherein said applying comprises printing one of said layers comprising a ceramic ink comprising glass frit in the form of said print pattern, and printing another of said layers both within and outside said print pattern, wherein the another of said layers comprises first and second parts, wherein the first part is disposed within the print pattern, wherein the second part is disposed outside the print pattern, wherein the first and second parts each comprise pigment, wherein said printing comprises (a) printing the one of said layers in the form of said print pattern onto the sheet of glass such that said sheet of glass is devoid of said one of said layers outside said print pattern, or (b) printing the one of said layers in the form of said print pattern onto a decal carrier material and transferring said one of said layers in the form of a decal from said decal carrier material onto said sheet of glass such that said sheet of glass is devoid of said one of said layers outside said print pattern, (ii) subjecting said sheet of glass and said plurality of layers to a heat treatment process wherein said glass frit in said one of said layers melts and fuses with said sheet of glass and binds at least a portion of the pigment of the first part of the another of said layers within said print pattern, and (iii) removing at least a portion of the pigment of the second part of said another of said layers outside said print pattern by (a) burning off during said heat treatment process, and/or (b) vaporizing during said heat treatment process, and/or (c) a subsequent finishing process.