发明名称 |
DOCUMENT HAVING AN AREA WITH MARKS TO RESEMBLE SHADING AT A DISTANCE |
摘要 |
A document has a substrate with a first side. The first side has a first area within which the substrate is a first color. The document also has a plurality of marks on the substrate within a second area. The second area is smaller than the first area and is within the first area. Each mark is a different color from the first color. The density and size of the marks is such that at a distance of about twenty inches, the first area appears to the human eye to have a shaded area corresponding to the second area, as well as an unshaded area corresponding to a portion of the first area not occupied by the second area. At a distance of about eight inches, the second area appears to the human eye to have a plurality of marks. The method of making the document begins by providing a substrate, as described above. Next, a plurality of marks are printed on the substrate within the second area.
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申请公布号 |
CA2299928(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
CA20002299928 |
申请日期 |
2000.03.03 |
申请人 |
MOORE NORTH AMERICA, INC. |
发明人 |
GOLEMO, JOHN C.;MAPLES, KATHY V. |
分类号 |
B42D15/00;(IPC1-7):B42D15/00 |
主分类号 |
B42D15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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