Color changing print
OwnerKiyoharu Kawashimainventor
Life of this patent
Estimating the term…
Abstract
In the color changing print of this invention, plural areas are printed by using plural types of color changing inks which develop into different colors from the substantially invisible colorless state by reaction with a color changing agent. By the emergence of print from colorlessness and by giving changes in the appearing colors, unexpectedness and entertainingness are provided so that an attractive education may be realized.
Claims8
A color changing print comprising plural color changing areas printed on a sheet of paper using inks each of which contains a color changing agent to change from substantially invisible colorlessness to a visible corresponding color through contact with a liquefied color former applied with an applicator, said applicator having a solvent for dissolving the color former, wherein
- said sheet of paper having a sheet of sticker adhering to a non-printed portion of said paper, said sticker being provided with a solidified color former, and wherein
- said liquefied color former is formed by dissolving said solidified color former of the sticker by application of said solvent of the applicator to the solidified color former.
Dependencies are inferred from the claim text.