Patent ID: 7832233

Claim:
A method of forming a decorated glass structure comprising: a. applying to a first glass substrate a green crystallizing enamel composition comprising, prior to firing: i. a reactive glass component, ii. an oxidizer component comprising at least two oxidizers selected from the group consisting of ammonium nitrate, antimony pentoxide, barium nitrate, bismuth pentoxide, bismuth oxynitrate, bismuth tetroxide, calcium nitrate, calcium peroxide, cesium nitrate, cobalt nitrate, copper nitrate, lithium nitrate, magnesium peroxide, manganese dioxide, nickel (III) oxide, platinum monoxide, platinum dioxide, potassium nitrate, potassium peroxide, sodium nitrate, sodium percarbonate, sodium peroxide, strontium nitrate, strontium peroxide, silver nitrate, tellurium trioxide, tin nitrate, and zinc peroxide and combinations thereof, iii. a pigment, iv. an organic vehicle comprising a binder and a solvent, and v. a seed material selected from the group consisting of Zn 2 SiO 4 , Bi 12 SiO 20 , Bi 4 (SiO 4 ) 3 , Bi 2 SiO 5 , 2ZnO.3TiO 2 , Bi 2 O 3 .SiO 2 , Bi 2 O 3 .2TiO 2 , 2Bi 2 O 3 .3TiO 2 , Bi 7 Ti 4 NbO 21 , Bi 4 Ti 3 O 12 , Bi 2 Ti 2 O 7 , Bi 12 TiO 20 , Bi 4 Ti 3 O 12 , Bi 2 Ti 4 O 11 , and combinations thereof, wherein the green ceramic enamel composition is substantially free of silica gels, b. stacking a second glass substrate with the first glass substrate wherein the green crystallizing enamel composition lies between the first and second glass substrates, and c. subjecting the stacked glass substrates to a firing operation whereby: i. only the first glass substrate bears a sintered enamel composition, ii. the organic vehicle burns out completely, and iii. the glass substrates do not stick to one another.