JPH0663246A - Color changing printed matter - Google Patents

Abstract

PURPOSE:To achieve a forming of color instantaneously as well as at a desired location for a printing paper printed using a discoloring agent by eliminating the need for applying a color forming agent. CONSTITUTION:A bag-shaped body 2 is made to house a printing paper 6 which is printed using an ink containing a discoloring agent that allows the turning of a colorless state colored in reaction with a color forming liquid and a sheet- shaped body 7 impregnated with a color forming liquid 3. An isolation sheet is so arranged inside the bag-shaped body 2 to divide the printed matter 6 and the sheet-shaped body 7 liquid-tightly while being broken from outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention allows a printing paper printed with a color-changing agent to be colored instantly and freely in any place without the need to apply a coloring 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 outdoors or at the place where it is going, and the range of its use is hindered.

According to the present invention, a printing paper printed with a color-changing agent and a sheet-like body impregnated with a color-developing liquid are housed in a bag-like body, and these are air-tightly partitioned by a separating sheet which can be broken from the outside. Based on the above, it is an object of the present invention to provide a discolored printed matter that can develop the color of the printing paper instantly and at a free place according to a request without performing a coating operation and can solve the above problems.

[0007]

In order to achieve the above-mentioned object, the discolored printed matter of the present invention is a bag-like body having at least one transparent surface, which is substantially invisible by reacting with a color-forming liquid and has a colorless to visible color. A printing paper having a color-changing area printed with an ink containing a color-changing agent that changes its color and containing a printing paper having the printing paper surface facing the one side and a sheet-shaped body impregnated with the coloring liquid At the same time, an isolation sheet that liquid-tightly separates the printing paper and the sheet-like body and is ruptured from the outside is provided.

[0008]

In the color-changed printed matter, the printing paper printed with the color-changing agent and the sheet-like body impregnated with the color-developing liquid are housed in the bag-like body while being liquid-tightly partitioned by the separating sheet. Therefore, the printing paper is always stored together without being colored.
Further, by breaking the isolation sheet from the outside, the coloring liquid impregnated in the sheet-like body can permeate the printing paper, and the color change area can be instantly colored. 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 printing paper and the color-developing liquid are integrated, the management and handling thereof are convenient, and moreover, when going out, etc.
It can be used in a wide variety of fields, such as being able to perform color development at any place desired by the user, and can be suitably used for, for example, fortune-telling, picking, lottery, and the like. Even after the color is developed, the released color-developing liquid is sealed in the bag-shaped body together with the printing paper, so that the color-developing liquid 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 printed on the bag-like body 2 on the printing paper 6
The sheet-like body 7 and the sheet-like body 7 are stored while being partitioned by an isolation sheet 8. In this example, the discolored printed matter 1 is used as a fortune-telling card in which the purchaser's fortune is described by hidden letters, hidden pictures, or the like.

As shown in FIG. 3, the bag-like body 2 has a bag-like shape in which two surfaces S1 and S2 are opposed to each other, and at least 1
By making the surface S1 transparent and transparent, the inside of the bag is formed to be substantially transparent.

The bag-like body 2 is sealed in a substantially airtight manner, and the printing paper 6 and the sheet-like body 7 are provided inside.
And are separated and stored.

In the present embodiment, the printing paper 6 is formed of a water-absorbing paper material, and the color change area 4 is printed on one surface thereof.

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 that changes from a substantially invisible colorless color to a visible colored color by reacting with the color forming liquid 5. Then, it is formed on the printing paper surface 6A, which is one surface of the printing paper 6, together with the visible printing area P printed by immortal ink or the like.

As the discoloring agent, a pH indicator having a colorless pH range can be used. As such a pH indicator, r-dinitrophenol, m-nitrophenol, o-nitrophenol, p-nitrophenol, cyanine, α-naphtholtalein, phenolphthalein, cresolfrein, thymolphthalein, ethylmethoxyred, There is heptamethoxylet, etc., which can be used properly according to the color to be displayed. 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 and various resins 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.

In addition, the color change agent may be pulverized into fine particles and then kneaded with various ink vehicles to prepare an ink, or the color change agent dissolved in a solvent may be adsorbed on an appropriate inorganic or organic powder, and then various types of ink may be prepared. 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.

Further, such a printing paper 6 is housed in the bag-like body 2 with the printing paper surface 6A facing the transparent surface S1 so that the printing paper surface 6A can be seen from the outside. The sheet-like body 7 is arranged on the non-printing paper surface 6B side of the printing paper 6.

In the present example having a water absorbing property, the sheet-like body 7 is made of a porous material such as cotton, paper and sponge, and the sheet-like body 7 is impregnated with the coloring liquid 5.

The color forming liquid 5 is an acidic or alkaline solution whose pH can be adjusted.
Those having an alkaline pH in the range of -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.

Further, the color developing solution 5 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 forming liquid 5. In such a case, for example, as shown in FIG.
Formed on the non-printed paper surface 6B of the above-mentioned soda carbonate, sodium bicarbonate or the like with water glass, when the water from the sheet-shaped body 7 permeates the printed paper 6, the soda carbonate or the like is dissolved and the discoloration area 4 Can be colored.

The separating sheet 8 for partitioning the printing paper 6 and the sheet-like body 7 is, in this example, a waterproof bag piece 10 for accommodating the sheet-like body 7 and a hole portion 11 provided in the waterproof bag piece 10.
And a cover piece 12 for covering the.

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 non-printing cotton 6B has a discoloration area 4 of the printing paper 6 on it. A hole portion 11 exposing the sheet-like body 7 at a matching position.
Is installed transparently.

The cover piece 12 is adhered to the peripheral edge of the hole 11 via an adhesive to close the hole 12 in a liquid-tight and detachable 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, as shown in FIG. 4, the cover piece 12 is gradually separated from the waterproof bag piece 10 by the pulling operation on the operation string 13 projecting from the bag shape body 2, and the sheet-like body 7 is exposed from the hole 11. You can.
Further, after being exposed, the color forming liquid 5 of the sheet-shaped body 7 is pressed from the printing paper 6 and the sheet-shaped body 7 by, for example, a palm-joining operation, so that the color liquid 5 of the sheet-shaped body 7 goes from the non-printed paper surface 6B on the back side to the printing paper. 6 to make the color change region 4 on the front side vividly develop color.

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 is, for example, the sheet-shaped body 7.
Alternatively, the printing paper 6 and the sheet-like body 7 may be liquid-tightly partitioned by accommodating the printing paper 6 in the main body portion 12A. In such a case, the hole portion 11 is provided on the non-printing paper surface 6B side. To form. The separating sheet 8 may be a sheet body interposed between the printing paper 6 and the sheet-shaped body 7 as long as it is a liquid-tight partition between the printing paper 6 and the sheet-shaped body 7. In addition to covering the hole portion 11 provided in advance by attaching the cover piece 12 to the hole portion, various things such as a breakable cut line may be provided can be adopted.

Phenolphthalein and the like change coloration instantaneously, but are eluted by the excess color-forming 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, the sheet-like body 7 is impregnated with the coloring liquid 5 consisting of 6 parts by weight of nickel carbonate, 4 to 8 parts by weight of oxalic acid and 86 parts by weight of water, while the non-printing paper surface 6B is covered with the soda carbonate or the like. Form layer 10. A mixed liquid of 90 parts by weight of water and 10 parts by weight of acetic acid may be used as the coloring liquid 5, and the layer 10 obtained by solidifying sodium carbonate and nickel carbonate with water glass may be formed on the non-printed paper surface 6B. Instead of the layer 10, a dry paper piece impregnated with sodium carbonate, nickel carbonate or the like may be placed next to the non-printing paper surface 6B.

[0032]

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 paper 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 a sectional view of a side portion thereof.

FIG. 3 is an exploded perspective view thereof.

FIG. 4 is a cross-sectional view showing a broken state of an isolation sheet.

FIG. 5 is a cross-sectional view illustrating an example of printing paper.

FIG. 6 is a partial perspective view illustrating a cover piece.

[Explanation of symbols]

 2 Bag-shaped body 4 Color change area 5 Color-developing liquid 6 Printing paper 6A Printing paper surface 7 Sheet-like body 8 Isolation sheet

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B42D 15/00 351 A 8604-2C

Claims (1)

[Claims] 1. A discoloration region printed on a bag-shaped body having at least one transparent surface by using an ink containing a discoloration agent that discolors from substantially invisible colorless to visible color by reacting with a color-forming liquid. A printing paper having a printing paper surface and having the printing paper surface facing the one side, and a sheet-like body impregnated with the color-developing liquid are stored, and the printing paper and the sheet-like body are liquid-tightly partitioned and externally provided. Discolored printed matter provided with a breakable isolation sheet.