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US 4,399,177 AGranted
Supporting structure for decalcomania
AssigneeTokyo Tokushu Insatsu Kogyo Kabushiki Kaisha
InventorTetsuya Ozasa
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AssigneeTokyo Tokushu Insatsu Kogyo Kabushiki Kaisha
InventorTetsuya Ozasa
Estimating the term…
A supporting structure for a decalcomania wherein the decalcomania is inserted into an aqueous solution prepared by adding a reagent to water or into a quantity of mixed aqueous solution prepared by dissolving a reagent in a quantity of suitable solvent and then mixing this solution with a quantity of water and wherein a coating (6, 3A) of a water soluble separating agent is applied over the decalcomania and wherein the dissolving speed of the coat (6, 3A) is selected to be in accordance with the reaction speed of a coloration reactant or a chromogenic substance such as a dye previously added to the coating (6, 3A) of the water soluble separating agent such that a color change will be visually present when the optimum time for transfer of the decalcomania occurs.
A supporting structure for a decalcomania adapted for use with a color developing solution of predetermined temperature comprising a supporting sheet having a coating of a water soluble separating agent thereon in which there is dispersed an inorganic color forming compound which reacts with said color developing solution to generate a color, the concentration of inorganic compound being such that said color is generated at approximately the time that said water soluble separating agent is dissolved in said color forming solution.
Dependencies are inferred from the claim text.