Enamel coating of a coated glass substrate
AssigneeFenzi AGT Netherlands B.V.
InventorRoland Katzbach
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Abstract
This disclosure concerns a method of decorating a glass substrate having a coating, the method comprising: applying a paste onto at least a portion of the coating in a desired pattern; drying the paste to form a dried paste in the desired pattern; and firing the dried paste to form an enamel in the desired pattern, the enamel being directly bonded to the glass substrate by dissolution of the portion of the coating to which the paste is applied during the firing step. The paste comprises a solids portion dispersed in a dispersion medium, the solids portion including a composition comprising: 10 to 40 mol % ZnO; 20 to 40 mol % B2O3; 25 to 65 mol % Bi2O3, TeO2, or PbO, or mixtures thereof; and to 15 mol % Al2O3.
Claims15
A method of decorating a glass substrate having a coating, said method comprising:
- (i) applying a paste onto at least a portion of said coating in a desired pattern;
- (ii) drying said paste to form a dried paste in said desired pattern;
- and
- (iii) firing said dried paste to form an enamel in said desired pattern, said enamel being directly bonded to said glass substrate,
- wherein the paste comprises a solids portion dispersed in a dispersion medium, said solids portion including a composition comprising:
- 15 to 35 mol % ZnO;
- 20 to 30 mol % B2O3;
- 40 to 50 mol % Bi2O3;
- and
- 1.5 to 12 mol % Al2O3,
- and wherein step (iii) causes dissolution of said portion of said coating.
Dependencies are inferred from the claim text.