Article with curved patterns formed of aligned pigment flakes
First Claim
Patent Images
1. An article comprising:
- a substrate;
a magnet with North and South poles diagonally located; and
a coating, on the substrate, including magnetic pigment flakes that are aligned to form a curved pattern with a radius of curvature formed by a head-to-tail connection of the magnetic flakes in a cross-section of the coating;
wherein the cross-section is parallel to the diagonally located North and South poles of the magnet and is normal to a continuous imaginary line that is an axis of symmetry that defines a bright image.
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Abstract
In a printed article, pigment flakes are magnetically aligned so as to form curved patterns in a plurality of cross-sections normal a continuous imaginary line, wherein radii of the curved patterns increase along the imaginary line from the first point to the second point. When light is incident upon the aligned pigment flakes from a light source, light reflected from the aligned pattern forms a bright image which appears to gradually change its shape and move from one side of the continuous imaginary line to another side of the continuous imaginary line when the substrate is tilted with respect to the light source.
163 Citations
20 Claims
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1. An article comprising:
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a substrate; a magnet with North and South poles diagonally located; and a coating, on the substrate, including magnetic pigment flakes that are aligned to form a curved pattern with a radius of curvature formed by a head-to-tail connection of the magnetic flakes in a cross-section of the coating; wherein the cross-section is parallel to the diagonally located North and South poles of the magnet and is normal to a continuous imaginary line that is an axis of symmetry that defines a bright image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification