JPH1016412A - Printed matter of thermally color-changing properties - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a plurality of kinds of information in colors of free selection by forming an information printing layer using ink of color change properties, a layer changing its color in a manner of masking the information in a given temperature zone and an information printing layer using the ink of color change properties to be changed into a color different from a color changed from transparency. SOLUTION: For instance, 'good day' is printed in ink 5 of color change properties on a transparent sheet of a back layer 1, and ink 6 of color change properties to be changed from transparency to black color is applied on the whole surface of the transparent sheet of an intermediate layer 2, and for instance, 'good bye' is printed in the ink 6 of color change properties to be changed from transparency to white-on- black is printed on the transparent sheet of a surface layer 3. As the intermediate layer 2 and the surface layer 3 are transparent in the zones other than the given temperature zone in the initial stage, the information printed on the back layer 1 is visualized. Then, when the temperature reaches the given temperature zone and the ink 6 of color change properties is color changed, the information on the back layer 1 is masked by the intermediate layer 2, and the white-on-black of 'good bye' on the surface layer 3 is visualized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention allows information such as characters and patterns to be printed on a plurality of layers with thermochromic ink and to respond to changes in temperature so that different information can be displayed in the same place. The present invention relates to a thermochromic print as described above.

[0002]

2. Description of the Related Art Thermochromic prints are colored, decolored or discolored in response to a change in temperature, and are used in the fields of warning signs, decorative articles and toys. A thermochromic printed material that can efficiently display a print space instead of displaying different information in parallel is disclosed in Japanese Utility Model Publication No. 3-45829 and Japanese Utility Model Publication No. 6-46709. It has been disclosed.

In the thermochromic prints disclosed in these publications, information such as characters and symbols are printed on a support surface with non-color-changing ink, and different information is superimposed thereon with thermochromic ink. It is characterized by having done. The thermochromic ink is colored in a predetermined temperature range, and becomes substantially colorless at a temperature outside the predetermined temperature range.
Further, the coloring state of the thermochromic ink is set to a higher visual density than information printed by the other non-chromic ink.

[0004] Therefore, at a temperature outside the predetermined temperature range, the thermochromic ink is substantially colorless, so that information printed with the other non-color-changing ink can be visually observed. The color of the thermochromatic ink becomes colored, and the colored visual density is higher than that of the non-color-changing ink, so that information from the thermochromic ink can be visually observed. As described above, the thermochromic printed matter disclosed in the above publication can selectively visually observe information printed with the thermochromic ink or the non-color-changing ink by changing the temperature. It is like that.

[0005]

The thermochromic prints disclosed in the prior art are provided with a non-color-changeable print at the same position on the support surface so that the printing space can be used efficiently. The information printed by the ink and the information printed by the thermochromic ink can be visually observed alternatively. Therefore, the coloring state of the thermochromic ink must be set to a higher visual density than information printed with the non-chromic ink. However, such a restriction on the concentration of the colored state is a problem to be improved in diversifying products.

Accordingly, an object of the present invention is to provide a thermochromic printed material capable of displaying a plurality of types of information in relatively free colors while efficiently using a printing space. .

[0007]

A first means for solving the above-mentioned problems is to form a layer on which information is printed with a non-color-changing ink and a color change so as to cover the information in a predetermined temperature range. A thermochromic printed material comprising a layer on which information is printed with a thermochromic ink that changes color from transparent to a color different from the color changed in a predetermined temperature range.

[0008] According to the first means, outside the predetermined temperature range, the layer for blinding information with the non-color-changing ink and the information printed with the thermochromic ink are transparent. Information printed with the discolorable ink can be visually observed. When the temperature changes to a predetermined temperature range, the information printed with the non-color-changing ink is blinded by the layer that changes color in the predetermined temperature range and becomes invisible, and the thermochromic ink changes color, and the ink changes color. Thus, the printed information can be visually checked.

A second means for solving the above-mentioned problem is that a thermochromic ink which changes color to a color different from the blindly-colored color described in the above-mentioned first means is used to form a white-out state. A thermochromic printed matter, characterized in that information is printed on the printed matter.

According to the second means, the information printed with the thermochromic ink can be visually observed by discoloring to a white state in a predetermined temperature range. That is, the information printed with the non-discolorable ink is blinded by the layer that changes color in a predetermined temperature range, and the discolored color can be viewed from the layer that has changed to a white-out state.

A third means for solving the above-mentioned problem is that the color of the layer which is discolored so as to be blindfolded in the first means is the same as the color of information printed with non-discolorable ink. This is a thermochromic printed matter characterized by having the following colors.

[0012] According to the third means, the color of the layer which is discolored so as to blindfold is changed to the same color as the color of the information printed by the non-discolorable ink. The printed information becomes invisible. Then, information printed with thermochromic ink that changes color to a color different from this color can be visually checked.

A fourth means for solving the above-mentioned problems is to provide a back surface layer on which information is printed with a non-color-changing ink, and discoloring the information printed on the back surface layer into a color for blindfolding in a predetermined temperature range. Thermochromic printed matter, characterized by joining an intermediate layer to be printed and a surface layer on which information is printed with a thermochromic ink that changes color to a color different from the color of the discolored intermediate layer in a predetermined temperature range. It is.

According to the above-mentioned fourth means, the information printed on the back surface layer with the non-color-changing ink can be visually observed since the intermediate layer and the surface layer are transparent outside the predetermined temperature range. When the temperature changes to a predetermined temperature range, the back layer is blindfolded by the intermediate layer, and the information printed on the front layer can be visually checked.

[0015] A fifth means for solving the above-mentioned problem is that an intermediate layer on which information is printed with non-color-changing ink and a color different from the color printed on the intermediate layer in a predetermined temperature range are the same. And a surface layer on which information is printed with a thermochromic ink that changes color from transparent to a color different from the color printed on the intermediate layer in a predetermined temperature range. Thermochromic printed matter.

According to the above-mentioned fifth means, the information printed on the intermediate layer can be visually observed outside the predetermined temperature range since the surface layer is transparent. When the temperature changes to a predetermined temperature range, the back surface layer changes color to the same color as the color printed on the intermediate layer, so that the information printed on the intermediate layer cannot be viewed and the thermal discoloration printed on the front layer The discolored ink discolors and the information printed on the surface layer can be visually observed.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1A is a plan view of a thermochromic printed matter of Embodiment 1 outside a predetermined temperature range.
(B) is an exploded perspective view similarly. FIG. 2A is a plan view of a thermochromic print in a predetermined temperature range according to the first embodiment, and FIG. 2B is an exploded perspective view of the same. FIG.
FIG. 3A is a plan view of a thermochromic printed matter of Embodiment 2 outside a predetermined temperature range, and FIG. 3B is an exploded perspective view of the same. FIG. 4A is a plan view of a thermochromic print in a predetermined temperature range according to the second embodiment, and FIG. 4B is an exploded perspective view of the same.

FIG. 5A is a plan view of the thermochromic printed matter of Embodiment 3 outside a predetermined temperature range, and FIG. 5B is an exploded perspective view of the same. FIG. 6A is a plan view of a thermochromic print in a predetermined temperature range according to the third embodiment, and FIG.
FIG. FIG. 7A is a plan view of a thermochromic printed matter of Embodiment 4 outside a predetermined temperature range, and FIG. 7B is an exploded perspective view of the same. FIG. 8 (a)
FIG. 8B is a plan view of a thermochromic print in a predetermined temperature range according to the fourth embodiment, and FIG.

The thermochromic printed matter according to the present invention is composed of a transparent sheet in any of the first to fourth embodiments and is composed of a back layer 1, an intermediate layer 2 and a surface layer 3.
The information is printed by the non-color-changing ink 5, the information is printed by the thermochromic ink 6, or the information printed by the non-color-changing ink 5 is blinded by the thermochromic ink 6. Things. The thermochromic ink 6 is transparent outside the predetermined temperature range, and changes color to a predetermined color when the temperature changes to the predetermined temperature range. The layer on which the non-color-changing ink 5 or the thermochromic ink 6 is printed may have a mode as in the following first to fourth embodiments.

The first embodiment as shown in FIGS. 1 and 2, by the non-color-changing ink 5 on a transparent sheet of backing layer 1, and prints information such as, for example, "Hello", the intermediate layer 2 A thermochromic ink 6 that changes color from transparent to black was applied to the entire surface of the transparent sheet, and information such as “Goodbye” was printed from the transparent sheet on the transparent sheet of the surface layer 3 using the thermochromic ink 6. Things.

[0021] Information such thermochromatic printed matter, as shown in FIG. 1 except the predetermined temperature range, that since the intermediate layer 2 and the surface layer 3 is transparent and printed on the back side layer 1 "Hello" Can be visually observed. When the temperature changes to a predetermined temperature range, the thermochromic ink 6 applied to the intermediate layer 2 changes its color from transparent to black as shown in FIG. The discolorable ink 6 changes color to a white state.

[0022] Then, the information that was printed on the back layer 1 "Hello", as shown in FIG. 2 (b), can not be visible in a state of being blindfolded by the intermediate layer 2 discolored to black. At the same time, the information of "good-bye", which is discolored in white on the surface layer 3, can be "visualized in black" as shown in FIG. 2A because the lower intermediate layer 2 has discolored in black. Therefore, when the intermediate layer 2 changes color to black, the surface layer 3 that changes color to white must be other than black, and it is preferable that black such as white is clearly visible from the white portion. it is desirable to change color to a color that can. by discolored Thus, in certain temperature outside, can visually information "Hello", for a given temperature range visible information of "Goodbye".

Next, a second embodiment will be described with reference to FIGS. Embodiment 2, the non-color-changing ink 5 on a transparent sheet of backing layer 1, and prints information such as, for example, "Hello", the intermediate layer 2
Is coated on the entire surface of the transparent sheet of the thermochromic ink 6 that changes color from transparent to black, and the transparent sheet of the surface layer 3 is coated with the thermochromic ink 6 that changes color from transparent to white. Such information is printed.

[0024] Information such thermochromatic printed matter, as shown in FIG. 3 except in a predetermined temperature range, that since the intermediate layer 2 and the surface layer 3 is transparent and printed on the back side layer 1 "Hello" Can be visually observed. When the temperature changes to a predetermined temperature range, the thermochromic ink 6 applied to the intermediate layer 2 changes color from transparent to black as shown in FIG. The discolorable ink 6 changes color from transparent to white.

[0025] Then, the information that was printed on the back layer 1 "Hello", as shown in FIG. 4 (b), can not be visible in a state of being blindfolded by the intermediate layer 2 discolored to black. At the same time, the information "Goodbye" discolored to white on the surface layer 3 can be visually observed as shown in FIG. 4A due to the discoloration of the lower intermediate layer 2 to black. Thus, in certain temperature outside, can visually information "Hello", for a given temperature range visible information of "Goodbye".

Next, a third embodiment will be described with reference to FIGS. Embodiment 3 prints the information such as "Hello" by non-discoloring red ink on a transparent back surface layer 1, the thermochromic ink 6 which changes color to red transparent transparent intermediate layer 2 The ink is applied to the entire surface, and information such as “good-bye” is printed on the transparent surface layer 3 by a thermochromic ink 6 that changes color from transparent to white.

The thermochromic print according to the third embodiment is constructed as described above, and since the intermediate layer 2 and the front surface are transparent except in a predetermined temperature range, as shown in FIG. it is possible to visually the information "Hello" of the red printed on the layer 1. In the predetermined temperature range,
There for discoloration to red, the information that was printed in red on the back layer 1 as shown in FIG. 6 (b) "Hello" is not be visible in a state of being blindfolded the intermediate layer 2. Then, the thermochromic ink 6 printed on the surface layer 3 changes its color from transparent to white, and information such as “Goodbye” can be visually observed as shown in FIG.

Next, a fourth embodiment will be described with reference to FIGS. In the fourth embodiment, the thermochromic ink 6 that changes color from transparent to red is applied to the transparent back layer 1.
Was applied to the entire surface, printed information such as "Hello" by non-discoloring red ink transparent to the intermediate layer 2, the thermochromic ink 6 which changes color to white transparent transparent surface layer 3 Information such as "Goodbye" is printed.

Since the thermochromic printed matter according to the fourth embodiment is configured as described above, the back surface layer 1 and the surface layer 3 are transparent in a temperature range other than a predetermined temperature range. it is possible to visually information such as "Hello" of the intermediate layer 2. As a predetermined temperature range shown in FIG. 8 (b), by the back layer 1 is discolored to red, with information such as "Hello" of the intermediate layer 2 can not be visually blindfolded, thermochromic surface layer 3 The information such as “Good-bye” can be visually observed when the color ink 6 changes its color from transparent to white.

It should be noted that the present invention is not limited to the above-described embodiment, and can be modified within the scope of the present invention. Therefore, the above colors such as red and black are merely examples, and it goes without saying that the colors are not limited to those colors. Further, the layer whose entire surface is discolored can be formed of a material that discolors by heat, instead of applying a thermochromic ink to a transparent sheet. Further, in the above embodiment, the case of three layers has been described, but the same can be applied to four or more layers.

[0031]

According to the present invention, the information printed on each layer can be selectively viewed with the use of the non-color-changing ink and the thermochromic ink, so that the limited space can be used efficiently. In addition to the above, various information can be displayed in any color. Therefore, diversified products can be provided in the fields of decorative articles and toys.

[Brief description of the drawings]

FIG. 1A is a plan view of a thermochromic printed matter of Embodiment 1 outside a predetermined temperature range, and FIG. 1B is an exploded perspective view of the same.

FIG. 2A is a plan view of a thermochromic print in a predetermined temperature range according to the first embodiment, and FIG. 2B is an exploded perspective view thereof.

FIG. 3A is a plan view of a thermochromic printed matter of Embodiment 2 outside a predetermined temperature range, and FIG. 3B is an exploded perspective view of the same.

FIG. 4A is a plan view of a thermochromic print in a predetermined temperature range according to the second embodiment, and FIG. 4B is an exploded perspective view of the same.

FIG. 5A is a plan view of a thermochromic printed matter of Embodiment 3 outside a predetermined temperature range, and FIG. 5B is an exploded perspective view of the same.

FIG. 6A is a plan view of a thermochromic print in a predetermined temperature range according to the third embodiment, and FIG. 6B is an exploded perspective view of the same.

FIG. 7A is a plan view of a thermochromic printed matter outside a predetermined temperature range according to the fourth embodiment, and FIG. 7B is an exploded perspective view of the same.

FIG. 8A is a plan view of a thermochromic print in a predetermined temperature range according to the fourth embodiment, and FIG. 8B is an exploded perspective view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Back layer 2 Intermediate layer 3 Surface layer 5 Non-discoloring ink 6 Thermochromic ink

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B41M 5/18 101A 113Z

Claims (5)

[Claims] 1. A layer on which information is printed with a non-color-changing ink, a layer that changes color so as to cover the information in a predetermined temperature range, and a color that is changed from transparent to color in a predetermined temperature range. A thermochromic printed material comprising a layer on which information is printed with a thermochromic ink that changes color to a different color. 2. A thermochromic printed matter, wherein information is printed in a white state with a thermochromic ink that changes color to a color different from the color that has been changed to blindfold according to claim 1. 3. A thermochromic printed matter, characterized in that the color of the layer that changes color so as to be blindfolded according to claim 1 is the same as the color of information printed with non-color-changing ink. 4. A backside layer on which information is printed with a non-color-changeable ink, an intermediate layer for discoloring the information printed on the backside layer into a color that is blindfolded in a predetermined temperature range, and What is claimed is: 1. A thermochromic printed matter characterized by being joined to a surface layer on which information has been printed with a thermochromic ink that changes color to a color different from the color of the discolored intermediate layer. 5. An intermediate layer on which information is printed with a non-color-changing ink, a back surface layer that changes color different from a color printed on the intermediate layer to the same color in a predetermined temperature range, and a predetermined temperature. A thermochromic printed matter characterized by joining a surface layer on which information has been printed with a thermochromic ink that changes color from transparent to a color printed on the intermediate layer in a region.