Patent · US Expired

Method of decorating hard materials

US6357868B1 · kind B1 · utility

18Cited by

3References

15Claims

0Family size

Assignee

DMC, INC · DE

Inventors

Peter T. Pfaff · Kronberg, DE
Maurizio Ragnetti · Hochheim, DE

Key dates

Filing date	May 11, 2000
Grant date	Mar 19, 2002
Priority date	—
Expiry date	May 11, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B41/86
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a method of decorating hard materials, especially materials which can be fired for the purpose of decoration, by means of direct or indirect printing. Printing is carried out by means of inkjet technology. According to the invention, a colour paste containing at least 30 wt. % inorganic solids, such as pigments and glass frits, and a thermoplastic medium having a melting point of at least 30° C. is applied to the surface to be decorated by means of a heatable inkjet print head, which preferably additionally has a device for circulating the molten colour paste.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.