Image developing device
OwnerBryan A. Netschinventor
Life of this patent
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Abstract
The invention relates to a device for developing latent or hidden images. The device includes a first substrate containing a hidden or latent image printed on a first surface thereof, wherein the image contains one or more chromogenic compounds. A second substrate having a first surface contains a developer coating for developing the hidden or latent image. The developer coating includes a developer compound, a micro-encapsulated solvent, and an adhesive. Upon sufficient interfacial contact between the first surfaces of the first and second substrates, a visible image is produced. The device enables production of a relatively vibrant, full color images which are substantially non-toxic and relatively inexpensive to make.
Claims26
A device for developing latent or hidden images comprising:
- a first substrate containing a hidden or latent image printed on a first surface thereof, the image containing one or more chromogenic compounds,
- a second substrate having a first surface containing a developer coating for developing the hidden or latent image, wherein the developer coating contains a developer compound,
- a micro-encapsulated solvent substantially devoid of chromogenic compounds and developer compound is applied to at least one of the first surface of the first substrate and the first surface of the second substrate, and
- an adhesive applied to at least one of the first surface of the first substrate and the first surface of the second substrate.
A method for making a device for developing a latent image or hidden image into a visible image, comprising the steps of:
- printing a latent or hidden image comprising a chromogenic compound on a first surface of a first substrate, and
- applying a pressure-sensitive adhesive material to a first surface of a second substrate, the material containing a developer compound, a micro-encapsulated solvent which is compatible with the chromogenic compound and developer compound, and an adhesive, whereby interfacial pressure contact between the first surface of the first substrate and the first surface of the second substrate provide development of the latent or hidden image.
Dependencies are inferred from the claim text.