JPH06206395A - Discoloring printed matter - Google Patents

Abstract

PURPOSE:To develop instantaneously a color of printing paper printed by, making use of a discoloring agent at a free position without requiring the coating application on a color former. CONSTITUTION:A printed surface 6S which possesses discoloring region 4 printed by making use of ink containing a discoloring agent discoloring to a visible colored state from a substantial invisible colorlessness by reacting on a color forming solution is provided on the inside of a transparent part 2A of a baggy body 2, at least a part of which is transparent. The color forming solution is held within a baggy body 2 through a separating device separating the same from the printed surface 6S, releasing separation by a manual operation through the outside and reacting on the discoloring agent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention allows a printed surface printed with a color-changing agent to be colored instantaneously and at any desired location without the need for applying a color-developing agent. For example, the present invention relates to a discolored printed matter that can be suitably used for, for example, fortune-telling, picking, and lottery.

[0002]

2. Description of the Related Art For example, it is widely known that a color changing agent such as a PH indicator changes from a substantially invisible colorless color to a visible colored color by the action of an acid or an alkali. In recent years, such a color changing agent has been used. There has been proposed a discolored printed matter in which a discolored area such as a hidden character or a hidden picture is printed.

In addition to the effect of concealing the color change area,
High interest to the user, such as a change in appearance when the color change area develops a color, a printed content can be strongly impressed by unexpectedness, etc.
It is possible to provide entertainment, and it is desired to be used in various fields such as picture books, coloring pages, reference books, and omikuji, waji, lottery, etc.

[0004]

However, conventionally, the color of such a discolored printed matter is printed by using a writing tool such as a brush provided on the container body, for example, with a coloring liquid such as an acid or alkali contained separately in the container body. It is done by applying to the surface. Therefore, it is necessary to manage and handle both the discolored printed matter and the container body during color development, and moreover, the coating work requires a lot of time and labor, which makes the usability inconvenient.
Further, since the coloring is gradually performed by such a coating operation, the printed contents are expected in the middle of coloring, and the interest of unexpectedness and the like is halved.

Moreover, since the coloring work is limited to the place where the container body or the like is prepared, it is inconvenient to use it outside, for example, when going out, and the range of its use is hindered. There is also a problem such as sticking to the like.

The present invention is based on the fact that a coloring liquid is stored in a bag-shaped body whose inner surface is printed with a color-changing agent through a separating means, and instantaneously and without any application work. It is an object of the present invention to provide a discolored printed matter that can color the printing paper at any place and can solve the above problems.

[0007]

In order to achieve the above-mentioned object, the discolored printed matter of the present invention is substantially at least partially transparent to the inner surface of the transparent portion of the transparent bag-like body by reacting with a coloring liquid. While providing a printing surface having a color changing area printed using an ink containing a color changing agent that changes color from invisible colorless to visible color, in the bag-shaped body, the color forming liquid, and separate the printing surface and It is accommodated via a separating means which releases the separation by a manual operation from the outside and reacts with the color changing agent on the printing surface.

[0008]

In the color-changed printed matter, the color-forming liquid is contained in the bag-shaped body whose inner surface is printed with the ink containing the color-changing agent through the separating means. Therefore, the printed surface is always stored integrally without being colored. Further, the separating means can release the color-developing liquid by a manual operation from the outside to instantaneously develop the color-change area. In this way, the conventional coating work can be eliminated at the time of color development, and the usability can be improved and the unexpectedness of color development can be improved.

Further, since the bag-shaped body having a printing surface and the color-developing liquid are integrated, the management and handling thereof are convenient, and the color can be developed at a place where the user demands such as going out. The field of application can be expanded, and it can be suitably used for, for example, fortune-telling, picking, lottery, and the like. Even after the color is developed, the released color-forming liquid is sealed in the bag-shaped body, so that it can be prevented from adhering to the body, clothes, etc., and the safety can be improved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, the discolored printed matter 1 is a bag-shaped body 2 and a coloring liquid 3
The color-change printed matter 1 is used as a fortune-telling card in which, for example, the fortune of the purchaser is described by a hidden character, a hidden picture, or the like.

As shown in FIG. 2, the bag-like body 2 has a bag-like shape in which two surfaces S1 and S2 are opposed to each other, and is formed of, for example, a compatible resin material capable of keeping the inside airtight and strong. It Further, at least one of the face materials S1 and S2, which is the face material S1 in this example, is a transparent surface material S1 which is transparent and is substantially transparent in the substantial center thereof. On the inner surface of the transparent portion 2A, the printing surface 6S having the color change area 4 is printed.
Therefore, in the bag-shaped body 2, the printing surface 6S is visible from the outside of the bag.

Further, the color changing area 4 is a hidden character, a hidden picture or the like printed by using an ink containing a color changing agent which changes color from a substantially invisible colorless color to a visible color by reacting with the color forming liquid 3. Thus, the printing surface 6S is configured with the visible printing area P printed with immortal ink or the like.

Here, a pH indicator having a colorless pH range can be used as the discoloring agent. As such a pH indicator, r-dinitrophenol, m-nitrophenol,
o-nitrophenol, p-nitrophenol, cyanine, α-naphtholtalein, phenolphthalein,
There are cresol fraine, thymolphthalein, ethylmethoxy red, heptamethoxylet, etc., which can be used properly according to the color to be expressed. Further, one kind may be used in combination with plural kinds.

To prepare an ink using such a color-changing agent, for example, a solvent for the color-changing agent such as alcohol is used and polyhydric alcohol, a surfactant, various resins and the like are added.

When a color-forming liquid containing water or alcohol is used for color development after printing, it is preferable to use a water-based ink vehicle as the ink. Additives for making aqueous ink vehicles include dimethyl sulphoamide, dimethyl sulphoxide, alcohols,
Polyhydric alcohols, and rosin, shellac, guar gum, methyl cellulose and ethyl cellulose can be used as thickeners.

It is also possible to prepare the ink by pulverizing the color-changing agent into fine particles and then kneading it with various ink vehicles, or after adsorbing the color-changing agent dissolved in a solvent to an appropriate inorganic or organic powder, various kinds of It can be kneaded with an ink vehicle, and the ink can be prepared by any method.

In printing, it is possible to perform overprinting using a plurality of types of ink. When the color changing agent is, for example, nitrophenol, which has a color pH range close to neutral, a non-volatile pH adjusting agent such as tartaric acid or citric acid is contained in the ink vehicle, and It is preferable to adjust the pH low. This stabilizes the color change agent and prevents spontaneous color development after printing.

The bag-like body 2 is hermetically sealed, and the coloring liquid 3 is contained inside the bag-like body 2.
S is separated from S and released by a manual operation from the outside, and is accommodated via a separating means 5 that reacts with the color changing agent on the printing surface 6S.

Further, the separating means 5 is a coloring bag 7 in which the coloring liquid 3 is airtightly contained and can be broken by a pressing force by a manual operation in this example. The coloring bag 7 facilitates the breaking. In this example, the coloring liquid 3 is formed in a swelled state while being made of a synthetic resin material that is thin and has a low elongation.

The color-developing solution 3 is an acidic or alkaline solution whose pH can be adjusted.
Those having an alkaline pH in the range of H7 to 14 include sodium carbonate, sodium bicarbonate, ammonia, monoethanolamine, ethylamines, propylamines,
2-ethylhexyloxypropylmine, 3-ethoxypoolamine, diisobutylamine, sec-butylamine, isopropanolamine, ethanolamines,
2-ethylhexylamine, ethyleneamines and the like. Examples of those having an acidic pH in the range of pH 1 to 7 include acetic acid and formic acid.

The color-developing liquid 3 has a pH at which the color-changing agent develops color.
The type and concentration are determined by the value of.

Water can be used as the color developing liquid 3. In this case, for example, as shown in FIGS. 3 and 4, a layer in which a piece of paper is impregnated with sodium carbonate, sodium bicarbonate or the like is provided adjacent to the inner surface of the printing surface 6S, and the water discharged from the color developing bag 7 is filled with the bag-shaped body 2. When diffusing in the inside, the sodium carbonate or the like can be dissolved and the discolored area 4 can be colored. The paper piece 10 also functions as a blindfold for the color developing bag 7.

[0023] Phenolphthalein and the like change in color instantaneously, but they are eluted by the excess color-developing liquid after release, and the color-developed state is lost relatively early. Therefore, for example, it is preferable to use an ink containing 13 parts by weight of phenolphthalein and 7 parts by weight of dimethylglyoxine in the ink vehicle. This is because the dimethylglyoxine reacts with nickel carbonate to develop a color, but the color development is slow, but the color development state can be maintained for a long period of time. Therefore, by using these two color-changing agents in combination, the advantages of both can be exhibited, and instantaneous color development and long-term maintenance of the color development state are possible. Further, by selectively using these and printing, the coloring and erasing times can be partially changed within the color changing area 4, and interest can be increased. The nickel carbonate can be dissolved in a solvent such as acetic acid or oxalic acid. Therefore, in such a case, nickel carbonate 6
While the coloring liquid 3 containing 4 parts by weight of oxalic acid, and more preferably 8 parts by weight of acetic acid and 8 parts by weight of water is stored, the layer 10 of sodium carbonate or the like is formed inside the printing surface 6S. Further, acetic acid and oxalic acid in the color forming liquid 3 have a property of reacting with sodium carbonate or the like to generate a gas, and therefore, in this example, the bag-shaped body 2 is inflated into a balloon shape, which can further increase the unexpectedness. it can.

Further, at least oxalic acid 4 to 4 is used as the coloring liquid 3.
The powder of nickel carbonate may be stored in the bag-like body 2 using an aqueous solution of acetic acid containing 8 parts by weight. In such a case, the coloring bag 7 is broken, and heat is generated when the oxalic acid in the coloring liquid 3 dissolves nickel carbonate. Then, by utilizing this heat generation effect, it is possible to further enhance the unexpectedness and further increase the interest in color development.

In order to prevent the excess color-developing liquid 3 from flowing in the bag-shaped body 2 after being discharged, for example, a well-known water-absorbing agent powder which is solidified into a gel by absorbing water is used as the bag-shaped body. It is also good to place it in 2.

5 to 6 disclose another embodiment of the separating means 5. In the figure, the coloring liquid 3 is impregnated in the sheet-like body 9, and the separating means 5 includes a separating sheet 8 that liquid-tightly separates the printing surface 6S and the sheet-like body 9. The sheet-like body 9 is made of a porous material such as cotton, paper and sponge, which has water absorbability in this example.

In the present example, the separating sheet 8 is formed of a waterproof bag piece 10 for containing the sheet-like body 9 and a cover piece 12 for covering the hole 11 provided in the waterproof bag piece 10.

The waterproof bag piece 10 is a waterproof bag made of, for example, a synthetic resin, and one surface 10A of the waterproof bag piece 10 facing the printing surface 6S is located at a position matching the discoloration area 4. A hole 11 that exposes the sheet-like body 9 is transparently provided.

The cover piece 12 is adhered to the peripheral edge of the hole 11 with an adhesive to close the hole 12 in a liquid-tight and removable manner, and a main body 12A. Of the operation string 13 fixed to one edge e1 which is, for example, the lower edge. The operation cord 13 includes a base portion 13A fixed to the main body portion 12A along the one edge e, and the base portion 13A.
And extending portions 13B extending continuously from both ends of the main body portion 12A after being gathered into one in this example.
Of the bag-shaped body 2 facing the other edge e2 which is the upper edge of the bag-shaped body 2 and protrudes outward.

The one edge e1 has its rigidity increased by winding the main body 12A around the base 13A. In addition to increasing the rigidity of the base portion 13A itself, by arranging core members in parallel along the base portion 13A, the edge e
The rigidity at 1 may be improved. Therefore, by pulling the operation string 13 protruding from the bag-shaped body 2,
As shown in, the cover piece 12 can be gradually peeled off from the waterproof bag piece 10 to expose the sheet-like body 9 from the hole 11. Further, after the exposure, the printing surface 6S and the sheet-shaped body 9 are pressed against each other by, for example, a palming operation, so that the color-developing liquid 3 of the sheet-shaped body 9 clears the color-change region 4 through the holes 11.

The cover piece 12 is, as shown in FIG.
It is preferable to form the folded back K in advance in the vicinity of one edge of the main body portion 12A, so that the peeling from the waterproof bag piece 10 can be facilitated.

The separating sheet 8 may be a sheet body interposed between the printing surface 6S and the sheet-shaped body 9 as long as it is a liquid-tight partition between the printing surface 6S and the sheet-shaped body 9. As the breaking means, the hole 11 provided in advance is used as the cover piece 12.
In addition to covering by sticking with, a variety of things such as a breakable cut line may be provided.

[0033]

As described above, since the discolored printed matter of the present invention is configured, it is possible to instantly develop the color of the printing surface at a free place without applying the coating work, and to improve the unexpectedness. , Its handling can be greatly improved.

[Brief description of drawings]

FIG. 1 is a front view showing a discolored printed material according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a schematic cross-sectional view showing a side portion thereof.

FIG. 4 is a schematic cross-sectional view illustrating an example of a printing surface.

FIG. 5 is an exploded perspective view showing another embodiment of the separating means.

FIG. 6 is a side sectional view thereof.

FIG. 7 is a cross-sectional view showing a broken state of an isolation sheet.

FIG. 8 is a partial perspective view illustrating a cover piece.

[Explanation of symbols]

 2 Bag-like body 3 Coloring liquid 4 Color change area 5 Separation means 6S Printing surface 7 Coloring bag 8 Separation sheet 9 Sheet-like body

Claims (3)

[Claims] 1. An ink containing a color-changing agent that changes from a substantially invisible colorless to a visible colored color by reacting with a color-forming liquid on the inner surface of the transparent portion of at least a partly transparent bag-shaped body. A printing surface having a discoloration area printed by the above, and in the bag-shaped body, the coloring liquid is separated from the printing surface and the separation is released by a manual operation from the outside to react with the discoloring agent on the printing surface. Discolored printed matter stored via a separating means. 2. The separating means comprises a coloring bag capable of air-tightly containing the coloring liquid and rupturing by a pressing force applied from the outside to release the coloring liquid. Discolored printed matter described. 3. A sheet-shaped body is impregnated with the color-developing liquid, and the separating means liquid-tightly separates the printing surface and the sheet-shaped body from each other and is provided with a separating sheet that is broken from the outside. The discolored printed matter according to claim 1.