Multicolor printing system
AssigneeThe Standard Register Company
InventorsMark D. Dotson, William J. Castle, Bryan A. Netsch
Life of this patent
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Abstract
The invention described in the specification relates to latent image printing and developing systems and to substrates containing latent images. High quality latent images are prepared by a printing method which deposits a layer containing organic-based dye particles and organic-based developer particles, each having a particle size of from about 2 to about 6 microns, on a substrate. The image is then developed by contacting the substantially invisible image of dye and developer particles with an oxygenated solvent from an imaging device. Multicolor, vivid images are obtained as a result of the image printing and developing system of the invention.
Claims39
A method for developing a latent image on a substrate which comprises providing a dispersion of organic dye particles having an average particle size of from about 2 to about 6 microns and organic developer particles having an average particle size of from about 2 to about 6 microns in an aqueous carrier fluid, printing the dispersion on a substrate so that a substantially invisible image is produced and contacting the printed substrate in the portion of the printed latent image with an imaging device containing an oxygenated solvent to dissolve the dye particles and developer particles and cause reaction therebetween in order to develop a visible image on the substrate.
A method for developing an image on a substrate which comprises dispersing an organic dye having an average particle size of from about 2 to about 6 microns in an aqueous carrier fluid, depositing the dispersion on a substrate to provide a substantially invisible image thereon and contacting at least a portion of the substrate with a device containing an organic developer in an oxygenated solvent, the developer being present in an amount sufficient to develop a visible image on the substrate from the substantially invisible image thereon.
A method for developing an image on a substrate which comprises dispersing an organic developer having an average particle size of from about 2 to about 6 microns in an aqueous carrier fluid, printing the dispersed developer on a substrate to provide a substantially invisible image and contacting at least a portion of the printed substrate containing developer particles with a device containing an organic dye in an oxygenated solvent, the dye being present in an amount sufficient to develop a visible image on the substrate.
A novelty product consisting essentially of a substrate containing a layer of organic dye particles having an average particle size of from about 2 to about 6 microns and organic developer particles having average particle size of from about 2 to about 6 microns and an imaging device containing an oxygenated solvent for dissolving the developer particles and dye particles to cause reaction therebetween.
Dependencies are inferred from the claim text.