Latent image systems, developers, and blockers therefor
OwnerBryan A. Netschinventor
Life of this patent
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Abstract
A latent image developing system, methods for imaging and developing images, and systems and methods for blocking or erasing latent images. The latent image developing system includes a substrate containing a colorless image deposited thereon. A developer instrument is used to provide a visible image. The developer instrument includes a developer composition reactive with the colorless image. An image blocking instrument is provided for concealing at least a portion of the visible image. The image blocking instrument is provided by a blocking composition applicator and an aqueous mixture of blocking composition and water.
Claims14
A latent image developing system, comprising:
- a substrate containing a colorless image deposited thereon as an outermost layer on the substrate;
- a developer instrument containing a developer composition reactive with the colorless image to provide a visible image;
- and
- an image blocking instrument for concealing at least a portion of the visible image on the substrate, the image blocking instrument comprising a blocking composition applicator and an aqueous mixture of blocking composition and water.
A system for printing and developing a colorless image on a substrate, the system comprising:
- a substantially colorless flexographic ink base comprising a binder resin and from about 5 to about 20 percent by weight of a substantially colorless compound dissolved in a solvent portion of the ink base for printing the colorless image on the substrate;
- and
- a developer instrument comprising a developer compound selected from the group consisting of zinc chloride, and benzoic acid resin, said developer compound being dissolved in from about 30 to about 85 percent by weight carrier fluid.
Dependencies are inferred from the claim text.