Method and system for ink jet printing images to complex contoured surfaces of ceramic and glass items such as dishware
A glass or ceramic dishware item with an image disposed thereon is provided. The image is transferred, at ambient temperature, to the surface of the dishware from an ink composite by using a silicone transfer substrate. The ink composite is dispensed by an inkjet head. Methods and systems for producing ink composites and dishware using ink composites are also provided.
1. An ink composite for use in applying a digital inkjet printing to a contoured ceramic, glass-ceramic or glass substrate, the ink composite comprising:
a blended medium comprising an inkjet ink, an organic medium, an organic solvent and frit, the blended medium having a viscosity suitable for dispensing from an inkjet head, the ink composite comprising high permanent pressure sensitivity at or near room temperature and a low affinity to silicone surfaces.
2. The ink composite of claim 1 , wherein the inkjet ink comprises a pigment of a particle size suitable for dispensing from the inkjet head.
3. The ink composite of claim 1 , wherein the frit comprises frit of a particle size suitable for dispensing from the inkjet head.
4. The ink composite of claim 1 , wherein the blended organic medium forms a single layer of the ink composite.
5. The ink composite of claim 1 , wherein the viscosity of the blended medium is less than or equal to about 20 centipoise.
6. A glass, glass-ceramic or ceramic dishware item having a contoured surface with an image disposed thereon, wherein the disposed image is created by:
creating an ink composite by depositing a blended medium comprising an inkjet ink, an organic medium, an organic solvent and frit, the blended medium having a viscosity suitable for dispensing from an inkjet head, the blended medium being configured in the form of an image; and
transferring at or near room temperature the image from the ink composite to a contoured surface of a workpiece by moving the blended medium and the contoured surface of the workpiece into contact with the other of the blended medium and the contoured surface of the workpiece, thereby depositing a first layer of organic ink onto a silicone substrate.
7. The glass or ceramic dishware item of claim 6 , further comprising the step of firing the dishware item at a temperature of 300° to 790° C.
8. The glass or ceramic dishware item of claim 6 , wherein the inkjet ink comprises a pigment of a particle size suitable for dispensing from the inkjet head.
9. The glass or ceramic dishware item of claim 6 , wherein the frit comprises frit of a particle size suitable for dispensing from the inkjet head.
10. The glass or ceramic dishware item of claim 6 , wherein the blended organic medium forms a single layer of the ink composite.
11. The glass or ceramic dishware item of claim 6 , wherein the viscosity of the blended medium is less than or equal to about 20 centipoise.