Method of decorating hard materials
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United States of America Patent
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Mar 19, 2002
Grant Date -
N/A
app pub date -
May 11, 2000
filing date -
May 12, 1999
priority date (Note) -
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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.degree. 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.
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