초록 ▼

A process for preparing a ceramic decal in which a printed image is applied to a backing sheet, and a covercoating is then applied to the printed substrate. A digitally printed ceramic colorant image is applied to the backing sheet; metal oxide colorant with a refractive index of greater than about

A process for preparing a ceramic decal in which a printed image is applied to a backing sheet, and a covercoating is then applied to the printed substrate. A digitally printed ceramic colorant image is applied to the backing sheet; metal oxide colorant with a refractive index of greater than about 1.6 is used as the colorant. Thereafter, the printed image is covercoated with an overcoat containing frit and binder. The total amount of frit applied in the process divided by the total amount of colorant used is at least 2, and the frit used has a melting temperature of at least 550 degrees Centigrade.

대표청구항 ▼

1. A process for preparing a ceramic decal, comprising the steps of sequentially:(a) applying to a backing sheet a flux covercoat with a first surface comprised of a first mixture comprised of a first frit and a second solid carbonaceous binder, wherein said first frit has a melting temperature of a

1. A process for preparing a ceramic decal, comprising the steps of sequentially:(a) applying to a backing sheet a flux covercoat with a first surface comprised of a first mixture comprised of a first frit and a second solid carbonaceous binder, wherein said first frit has a melting temperature of at least about 550 degrees Centigrade, (b) applying to said first surface of said flux covercoat a a digitally printed ceramic colorant image comprised of a colorant composition comprising a second surface, wherein: 1. said colorant composition is comprised of metal oxide pigment with a refractive index greater than about 1.4, 2. said colorant composition is comprised of a multiplicity of metal oxide pigment particles, at least about about 90 weight percent of which are within the range of about 0.2 to about 20 microns, and 3. said colorant composition is comprised of a first solid carbonaceous binder, 4. said second surface of said colorant composition is contiguous with at least a portion of said first surface of said flux covercoat, and 5. the total amount of frit applied to said backing sheet is at least 2 times as great as the total amount of colorant applied to said backing sheet.