JPH0517263Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a set of copy slips, and more particularly to a set of copy slips that prevents confidential leakage of information such as characters, symbols, figures, etc. copied onto the slips.

[Conventional technology]

A PIN number is registered when a cash card, credit card, etc. is issued, and for this reason, the PIN number is written on the application slip. This PIN number must be kept secret and is usually copied in such a way that it cannot be read. Conventionally, as a set of copy slips used for this purpose, a layer of pressure-sensitive copying ink containing a fluorescent substance that emits light under ultraviolet rays is provided on the back side of the upper slip, and the pressure-sensitive copying ink is applied to the top surface of the lower slip. It is known to have a concealing printed layer made of a solid or ground pattern of the same color as the layer. In this set of copy slips, the information entered on the upper slip is copied to the lower slip, and the lower slip is sent to the designated department, but during the process, the information copied on the lower slip is used for concealment. Since it is hidden by a printing layer, it is kept secret, and a designated department can read the copied information by irradiating the slip with ultraviolet light. In addition, once the ultraviolet irradiation is stopped, the information on this slip is hidden again by the concealing printing layer, so even if it is stored for a long time, the secret will not be leaked, and it can be used for long-term storage.

[The problem that the idea aims to solve]

However, in the above-mentioned set of copy slips, in order to read the confidentially copied information, ultraviolet irradiation is required, and a device for this purpose is required. In order to input a personal identification number or the like into a computer using this slip, it is necessary to equip the computer inputter with an ultraviolet irradiation device, which makes the equipment expensive. Therefore, for slips to be input into a computer, it is desirable to have a simple security copying means, rather than the security copying method that combines a fluorescent substance and ultraviolet irradiation as described above.

The present invention was made based on such a demand, and an object of the present invention is to provide a set of copy slips that enables secret copying using inexpensive slips and that can be easily read.

[Means to solve the problem]

In order to achieve the above object, the copy slip set of the present invention has a color former capsule layer formed on the bottom surface of the first slip, and a color developer layer formed on the top surface of the second slip stacked below. The copying slip that is formed and selectively copies necessary information includes at least the first slip and the second slip, and the first slip and the second slip include information such as address, name, etc. A copying area for information that does not need to be kept secret and a copying area for confidential information such as a password are formed, and the copying area for the information that does not need to be kept secret and the confidential information on the bottom of the first slip are formed. A color developer capsule layer is formed in the copy area, a color developer layer is formed in the copy area of the information that does not need to be kept secret on the top surface of the second slip, and the secret information copy area is , is characterized in that the area to be coated with a color developer does not have a color developer layer.

As the color former capsule layer used in the present invention, those used in carbonless copying paper are used. That is, a colorless organic compound with electron-donating and coloring reactivity is used as a pigment-forming substance, which is dissolved in a nonvolatile solvent such as chlorinated diphenyl or a high-boiling hydrocarbon, and this solution is atomized to produce natural and synthetic pigments. Capsules are used that are insulated and coated with a molecular film-forming substance. This dye-forming substance can react with an electron-accepting adsorbent or a color developer such as a solid acid to convert into a colored compound and develop a color. Pigment-forming substances include those that produce blue colors such as crystal violet lactone and benzoyl leucomethyl blue, and those that produce various hues such as red and green alone or in appropriate combinations. is used. Moreover, the one disclosed in Japanese Patent Publication No. 54-25450 can also be used.

[Effect]

In the copy set described above, when information such as a PIN number is written in the confidential information copying area from the top of the set of slips, the writing tears the capsule of the coloring agent capsule layer on the bottom of the first slip, and the coloring agent inside is released. It oozes out and adheres to the area where the developer is scheduled to be applied on the top surface of the second slip. However, since this coloring agent is colorless and no coloring agent layer is provided on this part of the top surface of the second slip, it does not develop color and therefore cannot be read. Secrets are prevented from being leaked while being sent to a predetermined department. In a designated department, a liquid developer is prepared by dissolving a color developer such as an electron-accepting adsorbent or a solid acid in a solvent, and this developer is applied to the area where the developer is to be applied on the slip. By applying it, the coloring agent on the top of the slip develops color, making it possible to read the copied information. After reading, this slip is discarded.

As the color developer used here, for example, the following ones are used.

Color developer (1) β-resorcinic acid 20 parts by weight Isopropyl alcohol 60 parts by weight Propylene glycol monomethyl ether
20 parts by weight Color developer (2) Zinc salicylate 25 parts Ethyl alcohol 50 parts Cellosolve 25 parts by weight Color developer (3) Zinc salicylate 20 parts Ethyl alcohol 50 parts Propylene glycol monomethyl ether
30 parts by weight [Example] Hereinafter, examples of the present invention will be described with reference to the drawings.

FIG. 1 is an exaggerated sectional view of a set of copy slips according to a first embodiment of the present invention. The set of copy slips in this example consists of four slips 1, 2, 3, and 4, the top slip 1 is for customer records, the second slip 2 is for head office records, and the third slip is for input. The fourth slip is for branch office records. This set of slips includes Figures 2 and 3.
As shown in the figure, a secret information copying area A is provided in which information to be kept secret, such as a password, is copied. A pressure-sensitive copying ink layer 6 containing a fluorescent substance that emits light under ultraviolet light is provided on the lower surface of the slip 1 located in the secret information copying area A. On the top surface of the slip 2, a concealing printed layer 7 consisting of a hidden background pattern of the same color as the pressure-sensitive copying ink layer is provided at a position facing the pressure-sensitive copying ink layer 6, and an irregular concealing embossed pattern 8 is provided. is embossed. A coloring agent capsule layer 9 is uniformly applied to the entire lower surface of the slip 2 including the confidential information copying area.

A color developer layer 10 is applied to the top surface of the slip 3.
As shown in FIG.
This is provided to copy information that does not need to be kept confidential, such as addresses. The confidential information copying area A on the top surface of the slip 3 does not have a color developer layer and is a planned area to be coated with a color developer. A color former capsule layer 11 is formed on the entire lower surface of the slip 3.

A color developer layer 12 is also formed on the upper surface of the slip 4 in a necessary area.

Next, a method of using the copy slip set having the above configuration will be explained. Write information that should be kept secret, such as a password, into the confidential information copying area A from the top of the slip 1.
As a result, the ink in the pressure-sensitive copying ink layer 6 is copied onto the concealing printing layer 7 of the slip 2 below.
The copied content is hidden by a concealing printing layer 7,
It cannot be read. Further, there is a risk that unevenness may occur on the slip 2 due to pen pressure, but since the embossed pattern 8 has been applied in advance, it is impossible to read it. When the password is written on the slip 1, the capsules of the coloring agent capsule layers 9 and 11 on the lower surface of the slip 2 and the lower surface of the slip 3 are torn, and the coloring agent inside oozes out and adheres to the upper surface of the slips 3 and 4 below. However, since no color developer layer is provided on the top surface of the slip in this area, the color developer does not develop color, and therefore the copied content cannot be read. In addition, slip 3,
4 are the third and fourth sheets from the top, so the pen pressure when writing is low, and there are not many irregularities caused by pen pressure, so it is difficult to read copy information from the irregularities caused by pen pressure. I can hardly do it. If there is a possibility that the information may be read due to the unevenness, please use slip 3,
4. Hidden tint pattern printing or embossing may be performed on both sides of the sheet, or both. In this case, the color of the hidden background pattern printing is a color that can read the coloring agent produced by the color developer pen, as described later.
For example, the hue is opposite to that of the coloring agent (for example, a reddish color for blue coloring).

Next, the topmost slip 1 is turned over or separated, and information that does not need to be confidential, such as name and address, is written on the top of the second slip 2. This information is copied at predetermined positions on the lower slips 3 and 4 by the color former capsule layer and the color developer layer, respectively. After filling in the necessary information, slip 1 is cut out and handed to the customer as a customer receipt, and the remaining slips are sent to the respective departments.
During this time, as described above, the information written in the confidential information copying area A and copied thereunder is kept secret.

Slip 2 serves as a copy of the head office, and is sent to a predetermined department at the head office, where the password is read by irradiating it with ultraviolet rays if necessary, and then stored in the predetermined department. Slip 3 is used for input into the computer and is sent to a predetermined operator. As shown in FIG. 4, the operator stores the developer liquid in the main body 14 and inserts the writing core
5 is protruded from the main body and is covered with a cap 16.
A developer liquid is applied to the confidential information copying area A with this developer pen 13. As a result, the color forming agent and the color developing agent in the color developing solution react to form a color, and the secret information that has been copied can be read and the information is input. Thereafter, the slip 3 is disposed of by being shredded or incinerated.

Slip 4 serves as a copy of the branch office and is simply kept in the necessary department, so there is no need to read the PIN number.

In the above embodiment, the coloring agent capsule layers 9 and 11 are provided on the entire lower surfaces of the slips 2 and 3, but of course they may be provided only in necessary areas. If provided throughout as in this example,
Since commercially available carbonless copying paper can be used, it can be manufactured at low cost. Further, in the above embodiment, a coloring agent capsule layer 9 is provided on the lower surface of the slip 2 for secret copying onto the slip 3, but instead of this, as shown in FIG. The color former capsule layer 17 may be provided on the upper surface of the slip 3 without providing any color former capsule layer on the lower surface of the copy area. In this case as well, when copying, no color develops and it is impossible to read the copied information, but it becomes possible to read it by applying a developer liquid with a developer pen. Furthermore, the fifth
In the illustrated embodiment, color former capsule layers 9A and 11A are formed only in necessary areas on the bottom surfaces of slips 2 and 3.

FIG. 6 shows yet another embodiment of the present invention. In this embodiment, an auxiliary slip 20 having a coloring agent capsule layer 21 on the lower surface is interposed between the slip 2 and the slip 3, and the right end of the auxiliary slip 20 is bonded to the slip 3 below with an adhesive layer 22. ing. In this embodiment as well, by writing in the confidential information copying area A of the slip 1 at the top, the information is copied onto the slip 3 using a coloring agent, but the contents are hidden by the auxiliary slip 20.
It is unreadable, and even if this auxiliary slip 2
Even if the value exceeds 0, the coloring agent does not develop color, so it is impossible to read. To read the information on slip 3,
What is necessary is to tear the auxiliary slip 20 and apply a color developer to the confidential information copying area on the top surface of the slip 3. In this example,
By providing the auxiliary slip 20, there is no need to use a slip 2 with a coloring agent capsule layer on the bottom surface, and there are no restrictions on the type of paper used for the slip 2. In addition, the coloring agent capsule ruptures due to writing, and the coloring agent that oozes out and adheres to the top surface of the slip 3 is protected by the protection slip 20, so the coloring function is reduced by light, heat, etc. until it is read. This will be prevented.

In addition, in the embodiments shown in FIGS. 5 and 6, hidden background pattern printing or embossing is applied to the necessary areas,
It goes without saying that unevenness caused by pen pressure may be hidden.

[Effect of idea]

As is clear from the above explanation, in the copying slip set of the present invention, a coloring agent capsule layer is provided on the lower surface of the first slip in the confidential information copying area, but the upper surface of the second slip stacked thereunder is provided with a coloring agent capsule layer. Since the color developer layer is not provided to form a color by combining with the color former in the color former capsule layer, and the color developer is to be applied to the area where the color developer is to be applied, write from the top of the first slip and apply the color developer to the color former capsule layer. Even if the capsule is ruptured and the coloring agent inside is oozed out and deposited on the top surface of the second slip, no coloring will occur because there is no coloring agent layer in this area, so it will be impossible to read. , leakage of the secret is prevented while this second slip is sent to a predetermined department. In a predetermined department, by applying a color developer to the slip, the coloring agent on the top surface of the slip develops color, allowing the copied information to be read. Thus,
Confidentiality can be easily maintained without using ultraviolet light, and the coloring agent capsule layer used can be the same as that used in carbonless copying paper, so it can be obtained at low cost, and slips can be manufactured at low cost. It has the effect of being able to

[Brief explanation of the drawing]

1 is a sectional view of the first embodiment of the present invention, FIG. 2 is a top view of the embodiment of FIG. 1, FIG. 3 is a top view of the slip 3 in the embodiment of FIG. 1, and FIG. 5 and 6 are cross-sectional views showing other embodiments of the color developer pen. 1, 2, 3, 4... slip, 9... color former capsule layer, 10... color developer layer, 13... color developer pen.

Claims (1)

[Claims for Utility Model Registration] A coloring agent capsule layer is formed on the bottom surface of the first slip, and a coloring agent layer is formed on the top surface of the second slip stacked below it, and necessary information is formed on the top surface of the second slip. A copy document that is selectively copied includes at least this first document and a second document, and the first document and the second document contain information that does not need to be kept confidential, such as addresses and names. A copying area and a copying area of confidential information such as a password are formed, and a coloring agent capsule is provided in the copying area of the information that does not need to be kept secret and the confidential information copying area on the bottom surface of the first slip. A color developer layer is formed on the upper surface of the second slip in the copy area of the information that does not need to be kept secret, and a developer layer is formed in the confidential information copy area on the upper surface of the second slip. A set of copy slips characterized by a portion to be coated with a coloring agent.