# US 4,399,177 A · Supporting structure for decalcomania

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- Number: US 4,399,177 A
- Document ID: US4399177A
- Status: Granted
- Kind: A
- Application number: 06/297,163
- Filed: 1981-08-28
- Granted: 1983-08-16
- Earliest claimed: 1981-08-28
- Assignees: Tokyo Tokushu Insatsu Kogyo Kabushiki Kaisha
- Inventors: Tetsuya Ozasa
- Web page: https://patentgrep.com/patent/US4399177A

## CPC

- B44C 1/1754: {Decalcomanias provided with a layer being specially adapted to facilitate their release from a temporary carrier (B44C1/1756, B44C1/1758 take precedence)}
- B44C 1/175: Transfer using solvent
- Y10S 428/913: Material designed to be responsive to temperature, light, moisture
- Y10S 428/914: Transfer or decalcomania
- Y10T 428/24835: including developable image or soluble portion in coating or impregnation [e.g., safety paper, etc.]
- Y10T 428/24851: Intermediate layer is discontinuous or differential
- Y10T 428/2486: with outer strippable or release layer
- Y10T 428/24868: Translucent outer layer
- Y10T 428/24876: Intermediate layer contains particulate material [e.g., pigment, etc.]
- Y10T 428/24901: including coloring matter
- Y10T 428/24934: including paper layer
- Y10T 428/28: Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T 428/283: Water activated
- Y10T 428/2848: Three or more layers
- B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)}
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

A supporting structure according to claim 1 in which said water-soluble separating agent includes dextrine.

### Claim 3 (depends on 1)

A supporting structure according to claim 1 in which said surface includes a dextrine layer containing said color forming inorganic compound, and a second dextrine layer devoid of said color forming compound.

### Claim 4 (depends on 1)

A supporting structure according to claim 1 wherein said inorganic color forming compound is aluminum sulfate.

### Claim 5 (depends on 1)

A supporting structure for a decalcomania according to claim 1 which includes a printed ink layer over said surface, a transparent resin layer over said ink layer, and a layer of adhesive over said resin layer.

### Claim 6 (depends on 5)

A supporting structure for a decalcomania according to claim 5 wherein said transparent resin layer has a surface layer area larger than the surface of the printed ink layer so as to completely surround it.