JPH0726151U - Thermochromic stereoscopic printed matter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a stereoscopic print that shows a wider variety of changes to the stereoscopic print that allows a stereoscopic image to be visually recognized by gazing and enjoy the doubled surprise. To do. A reversible thermal discoloration in which a plurality of images 3 of the same object viewed from a direction in which the visual position is slightly deviated are printed on a support 2, and at least a part of the images 3 develops and disappears by heat. Thermochromic stereoscopic printed matter 1 which is overprinted with the latent ink 4 and is concealed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention enjoys a great surprise by the synergistic effect of a change in which multiple images are visually recognized as a stereoscopic image due to gaze and a change in which the concealed portion is erased by the application of heat and another stereoscopic image is revealed. The present invention relates to a thermochromic stereoscopic printed matter having a high utility value as a gift or a promotional material.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, a printed matter in which a plurality of identical images are overlapped by gaze and visually recognized as a stereoscopic image is known as a stereogram printed matter. Since such a stereogram print is viewed stereoscopically by the displacement of the images displayed on the right and left eyes, the images are continuously arranged at regular intervals, and the individual images are slightly visible. Mostly, the images are arranged when viewed from different directions.

[0003]

[Problems to be solved by the device]

 The present invention shows more various changes than the conventional stereoscopic printed matter, and enjoys a doubled surprisingness, thereby providing a thermochromic cubic printed matter with enhanced utility value. To do.

[0004]

[Means for Solving the Problems]

 According to the present invention, a plurality of images of the same object viewed from a direction in which the visual position is slightly deviated are arranged at regular intervals, and the images can be stereoscopically viewed. At least a part of each image has a dark color at room temperature and is covered with a reversible thermochromic ink layer which becomes colorless and transparent by heat and is covered by a thermochromic cubic printed matter.

The reversible thermochromic ink for hiding the image is selected from an acid-coloring type leuco dye, a phenol compound, an organic acid, etc., and an organic acid substance serving as a developer of the leuco dye, and a high-grade alcohol. Reversible thermochromic pigments of microcapsules containing a compatibilized solution of three kinds of organic compounds, which is a medium that determines the temperature at which the two color development reactions occur, and the film forming resin is a solvent. An ink dispersed in a vehicle or a vehicle containing a resin emulsion is used (Japanese Patent Publication No. 51-44706, Japanese Patent Publication No. 51-44708, Japanese Patent Publication No. 52-7764, Japanese Patent Publication No. 1). No. 29398, etc.). As the thermochromic pigment, a pigment whose color change point is set to a temperature of about 20 ° C. to 40 ° C. by selecting a medium organic compound is preferably used.

The reversible thermochromic ink for hiding the image needs to be a dark color such as black, dark blue, or brown in order to sufficiently hiding the image of the base, and the hiding portion has a plurality of parts. The parts may be common to the images or different parts. Also, a plurality of multiple types of images may be arranged in parallel, and some of these multiple images may be hidden.

In the thermochromic stereoscopic printed matter, the base material to be printed may be a material having printability such as metal, glass, ceramics, plastic, etc. in addition to paper, and the printed material may be printed on the base material. The image can be exemplified by patterns of automobiles, airplanes and other artificial objects, animals and plants printed with general non-discoloring ink. It is also possible to print the image itself with a reversible thermochromic ink, and it is possible to represent an image that changes from colored (1) to colored (2) or from colored to colorless. It can be a stereoscopic printed matter.

[0008]

[Action]

 The thermochromic stereoscopic printed matter having the above-described configuration can visually perceive a stereoscopic image by gazing. Further, when heat is applied to the reversible thermochromic ink in the concealed portion while the stereoscopic image is visible, the reversible thermochromic printing ink is decolored, and the entire stereoscopic image appears.

When the concealed portion is a common portion of a plurality of images, the common portion of the stereoscopic image is also visually recognized in a concealed state, and the concealed portion is not a common portion of the plurality of images, The three-dimensional image is visible when the concealed part and the non-concealed common part of the other images overlap.

[0010]

【Example】

 Example 1 (see FIGS. 1, 2, and 3) As a support 2, an image 3 in which three Roman letters “E” were arranged in the lateral direction was printed with a red non-color-changing ink on a white paper. The Roman letters "E" are fonts when viewed from the direction in which the visual positions are slightly shifted.

In order to conceal the lower part of the three Roman letters “E”, the reversible thermochromic ink 4 that changes color from black to colorless at 30 ° C. or higher is overprinted so that only the letter “F” can be seen.

When the thermochromic stereoscopic printed matter 1 configured as described above is stared at, a stereoscopic “F” character is visually recognized. Furthermore, when the concealed portion of the reversible thermochromic ink 4 is heated by hand in this state, the concealed portion changes from black to colorless, and the three-dimensional "E" character is visible.

When the heating of the three-dimensional “E” character is stopped, the reversible thermochromic ink develops color again, and the color changes to black, and the lower part of the Roman character “E” is hidden, and the three-dimensional “F” character is hidden. Only the letters are visible.

Example 2 On a white paper as a support, an image in which five Roman letters “A” were arranged side by side was printed with a red non-color-changing ink. Each of the Roman letters "A" is a font when viewed from a direction in which the visual position is slightly shifted. Further, like the above-mentioned Roman letter "A", an image in which five apples when viewed from a direction in which the visual position was slightly shifted was arranged side by side was printed underneath.

In order to conceal all the five apple images, a reversible thermochromic ink that changes color from dark blue to colorless at 30 ° C. or higher is overprinted so that only the letter “A” can be seen.

When the thermochromic stereoscopic printed matter constructed as described above is stared at, a stereoscopic character “A” is visually recognized. Further, in this state, when the concealed portion with the reversible thermochromic ink is heated by hand, the concealed portion becomes colorless and a three-dimensional image of an apple is visually recognized.

When the heating of the three-dimensional apple image is stopped, the reversible thermochromic ink develops again, and the color changes to dark blue to hide the apple image and only the three-dimensional “A” character is visually recognized. Be done.

Example 3 On a white paper as a support, an image in which three Roman letters “E” were arranged side by side was printed with a reversible thermochromic ink that changes color from purple to red at 30 ° C. or higher. The Roman letters "E" are fonts when viewed from the directions in which the visual positions are slightly shifted.

In order to hide the lower part of the three Roman letters “E”, it is overprinted with a reversible thermochromic ink that discolors from black to colorless at 30 ° C. or higher so that only the letter “F” can be seen.

When the thermochromic stereoscopic printed matter constructed as described above is stared at, a three-dimensional purple “F” character is visually recognized. When the entire image is further warmed by hand in this state, the concealed part changes from black to colorless, and at the same time, the letter "E" also changes color to red, and the three-dimensional red letter "E" is visually recognized. It

When the heating of the three-dimensional red “E” character is stopped, the reversible thermochromic ink is colored again, and the lower part of the Roman character “E” is discolored to black and hidden. Since the letter "E" turns purple, only the three-dimensional purple letter "F" is visible.

[0022]

[Effect of device]

 In the thermochromic printed matter of the present invention, a stereoscopic image is visually recognized by staring, and when heat is applied while the stereoscopic image is visible, the portion hidden by the reversible thermochromic ink layer is erased. As a whole stereoscopic image appears, it is more surprising than ordinary stereoscopic prints.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a front view when a stereoscopic image is seen by staring according to an embodiment of the present invention.

FIG. 3 is a front view when a reversible thermochromic ink layer is decolored while a stereoscopic image is being viewed by staring according to an embodiment of the present invention.

[Explanation of symbols]

 1 Thermochromic stereoscopic print 2 Support 3 Image 4 Reversible thermochromic ink

Claims (3)

[Scope of utility model registration request] 1. A stereoscopic printed matter in which a plurality of images of the same object viewed from a direction in which the visual position is slightly deviated are arranged at regular intervals, and the images can be viewed three-dimensionally. A thermochromic stereoscopic printed matter, wherein at least a part of each of the images has a dark color at room temperature and is covered with a reversible thermochromic ink that becomes colorless and transparent by heat. 2. The thermochromic stereoscopic printed matter according to claim 1, wherein the concealed portion is a portion common to each image. 3. The thermochromic stereoscopic printed matter according to claim 1, wherein the concealed portion is a portion different from each other in each image.