Two-dimensional/three-dimensional graphic material and method of making same
First Claim
Patent Images
1. A method of making a graphic material, comprising the steps of:
- making a shim that has a microgroove pattern for forming a negative impression of a hologram and a non-holographic diffraction grating by growing a holographic microgroove pattern from a first microtexture interference pattern; and
by growing a diffraction microgroove pattern from a second microtexture interference pattern;
making an embossable blank having the negative image of the hologram and the diffraction grating by (i) impressing the shim holographic microgroove pattern into a first area of the embossable blank with a die;
(ii) repositioning the die;
(iii) and impressing the shim diffraction microgroove pattern into a second area of the embossable blank that is co-planer with the first area;
forming a mater plate, having an image of the hologram and the diffraction grating, from the embossable blank by growing the master plate from the embossable blank with electroplating;
forming the hologram over a first area of said graphic material by embossing the graphic material with the master plate;
forming the non-holographic diffraction grating over a second area of said graphic material, separate from, but co-planar with said first area, said steps of forming said hologram and forming said diffraction grating occurring simultaneously via the microembossing of a single surface of the graphic material.
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Abstract
Graphic material includes at least one area bearing a hologram and at least one area bearing a diffraction grating. Preferably, the diffraction grating and the hologram are simultaneously viewable from at least one perspective. The graphic material is made using an embossing die grown from a precursor blank which has been embossed in discrete areas with a holographic microtexture and then partially overstamped with a diffraction grating microtexture. The stamping of the blank may be effected by pressing a suitably shaped die against a shim bearing a diffraction grating microtexture for forming the microtexture in the die shape on the blank.
46 Citations
13 Claims
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1. A method of making a graphic material, comprising the steps of:
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making a shim that has a microgroove pattern for forming a negative impression of a hologram and a non-holographic diffraction grating by growing a holographic microgroove pattern from a first microtexture interference pattern; and
by growing a diffraction microgroove pattern from a second microtexture interference pattern;
making an embossable blank having the negative image of the hologram and the diffraction grating by (i) impressing the shim holographic microgroove pattern into a first area of the embossable blank with a die;
(ii) repositioning the die;
(iii) and impressing the shim diffraction microgroove pattern into a second area of the embossable blank that is co-planer with the first area;
forming a mater plate, having an image of the hologram and the diffraction grating, from the embossable blank by growing the master plate from the embossable blank with electroplating;
forming the hologram over a first area of said graphic material by embossing the graphic material with the master plate;
forming the non-holographic diffraction grating over a second area of said graphic material, separate from, but co-planar with said first area, said steps of forming said hologram and forming said diffraction grating occurring simultaneously via the microembossing of a single surface of the graphic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of making a graphic material that has a hologram that is co-planar with a diffraction grating, comprising:
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making a shim that has a microgroove pattern for forming a negative impression of the hologram and the diffraction grating by growing a holographic microgroove pattern from a first microtexture interference pattern and by growing a diffraction microgroove pattern from a second microtexture interference pattern;
forming a negative impression of the hologram on a first area of an embossable blank by impressing the holographic microgroove shim pattern with a die press on an embossable blank;
forming a negative impression of the diffraction grating on a second area of the embossable blank that is co-planar with the first area of the embossable blank by impressing the diffraction microgroove shim pattern;
with the die press on the second area of the embossable blank;
electroplating the embossable blank with nickel to create an embossing plate that has an impression of the diffraction grating on a first region of the embossing plate and an impression of the hologram on a second region of the embossing plate, the first and the second regions of the embossing plate being co-planar, and embossing a web with the embossing plate to create a diffraction grating on a first area of the web and a hologram on a second area of the web, the first and the second areas of the web being co-planar.
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Specification