Method for electrostatographically producing master images for decoration of ceramic objects
US6248492A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/485
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An electrostatic method for producing a master image for decorating ceramic, enamel or glass objects comprising the steps of: PA1 providing a temporary support having a surface with release properties, PA1 image-wise depositing charged toner particles, having a volume average particle size d.sub.v, such that 5 .mu.m<d.sub.v <15 .mu.m the particles including in the bulk particles of a ceramic pigment, CP, selected from the group of metals, metal oxides and mixed metal oxides, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than 2/3 times d.sub.v and PA1 providing particles of glazing material, having a volumetric particle size distribution such that 90% of the particles have a diameter lower than 2/3 d.sub.v, in the master image. Preferably the glazing material is brought in the master image by image-wise depositing toner particles comprising in the bulk of the toner particles both a ceramic pigment and glazing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.