Method of forming substrates wih visual features
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United States of America Patent
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Issued Date -
Jul 27, 2006
app pub date -
Dec 5, 2001
filing date -
Dec 5, 2000
priority date (Note) -
Abandoned
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Abstract
A method for forming a visual feature on the surface of an article, such as a document or other substrate, which includes the steps of forming data defining the visual feature, and using this data to control a transfer apparatus to transfer discrete elements from at least one foil onto the surface of the article, to form the visual feature. The discrete elements are applied in different densities, for example, numbers per unit area, according to differences in light intensity required to define the visual feature. The discrete elements are, preferably, optically variably reflective and, preferably, also transmissive. The transfer apparatus can be a thermal printer.
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