JPH0648071A - Mail form - Google Patents

Abstract

PURPOSE:To prevent a personal confidential information from being known by a third party except a receiver at the time of mailing and to enhance security by providing perforations for discriminating the presence of detachment in the whole face adhesive mail form wherein a weak pressure sensitive adhesive layer is formed on the almost whole surface of the face predetermined adhesion of base material. CONSTITUTION:A mail form 1 is so constituted that perforations 4 are provided therein in order to discriminate presence of detachment and the mail form 1 is not detached when the perforations 4 are not cut off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mail form used for secret postcards and the like, and more particularly to a mail form provided with perforations for determining the presence or absence of peeling.

[0002]

2. Description of the Related Art Conventionally, sealed letters have been used for confidential information such as notifications from financial institutions and government offices. For such an envelope, a three-fold mail form in which the mail form itself is folded and the periphery is sealed and sent as an envelope is currently the mainstream.

This tri-fold mail form prints confidential information such as the balance of deposits and the amount of borrowed money, and leaves it in the form of an envelope as it is. Therefore, enclosing and sealing work is unnecessary, and the matching of the recipient and the confidential information is performed. Can be achieved reliably. In addition, since the destination and the secret information can be printed on the same surface, they can be printed at once by a high-speed printer such as a non-impact printer, and efficient processing can be performed.

However, since the tri-fold mail form is sealed only by the pressure sensitive adhesive only at the peripheral portion, it is handled as an "envelope" by the postal method, and the postage is higher than that of a "postcard".

On the other hand, notifications of payment of pensions and reminder of unpaid tax are often notified by postcards, and there have been many complaints that privacy cannot be protected.

For this reason, the mail form is folded in two or three, the size of the postcard is entered, the secret information is entered inside, and the laminated adhesive sheet is sandwiched between the adhesive surfaces,
A secret postcard that allows confidential information to be read by allowing the recipient to peel off the mail form and open it by mailing it as a postcard by bringing the mail form into close contact with heat is partially implemented.

However, these secret postcards are
Since it is necessary to sandwich the laminated adhesive sheets and adhere them to the entire surface, it takes time and labor, and the processing machine and processing steps different from the above-mentioned three-fold mail form for envelopes, which is currently mainstream, are included. Will require major changes.

In order to solve the above-mentioned problems, the applicant of the present application has already proposed a full-contact type mail form in which a weak adhesive layer is formed on almost the entire planned contact surface of the base material.

[0009]

However, in this full-face contact type mail form, if the folded mail form is once peeled and then adhered using an adhesive such as glue, it is apparently peeled. I can't tell.
For example, if a third party who is not the real recipient peels off the folded mail form, looks at the recipient's confidential information, and then glues it again before the recipient receives it. When the recipient of the received the attached mail form later, it cannot be apparently judged whether the information was already peeled off and the confidential information was seen by a third party, so in terms of security to protect privacy. There was a problem.

An object of the present invention is to provide a mail form having a high confidentiality keeping ability.

[0011]

In order to solve the above-mentioned problems, the mail form according to the present invention has a weak pressure-sensitive adhesive layer which is adhered by pressure on almost the entire planned bonding surface of a substrate,
After forming a printing layer on the surface of the weak pressure-sensitive adhesive layer, folding or stacking the base material, the weak pressure-sensitive adhesive layers on the opposite surfaces are adhered to each other to conceal the printing layer, and then the weak pressure-sensitive adhesive The mail form may be peeled from the agent layer, and may have a perforation for determining the presence or absence of peeling.

[0012]

According to the above construction, since perforations are provided to determine the presence or absence of peeling, once a third party who is not the recipient peels off the folded mail form, the perforations are cut off. Since the evidence of peeling is left, when the recipient receives this mail form, it is possible to determine at a glance whether the secret information was peeled off and the confidential information was known to a third party.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings with reference to the accompanying drawings.

FIG. 1 is a diagram showing a first embodiment of a mail form according to the present invention, FIGS. 2 and 3 are sectional views taken along the line AA of FIG. 1, and FIG. 4 is the same. FIG. 5 is a diagram showing a state in which the embodiment foam is folded back and brought into close contact, FIG. 5 is a partially enlarged view of FIG. 4, and FIG. 6 is a perspective view in which the embodiment foam is peeled off. 7 and 8 are schematic diagrams showing the position of perforations and the state of peeling in the foam of the embodiment.

The mail form 1 is, as shown in FIG.
It is a paper that is three times the size of a normal postcard (standard size postcard). It is used by folding the planned folding lines 2 and 3 in three. The left column is the public information entry area X for entering address information and the middle column. In the right column, the secret information entry areas for entry of secret information and the like are designated as Y1 and Y2, respectively, and the back surface is not used as the entry area.

FIG. 2 shows the mail form 1 taken along the line A--A in FIG.
The broken lines are shown, and the weak pressure-sensitive adhesive layers 7 are provided on the entire surfaces of both sides of the base material 6. Further, when the back surface not used as the writing area is folded and brought into close contact with each other so that it cannot be peeled off, a strong pressure-sensitive adhesive layer may be provided instead of the weak pressure-sensitive adhesive layer for strong adhesion. Further, when the mail form 1 is folded back and brought into close contact, the perforations 4A and 4B for discriminating the presence or absence of peeling are cut off, so that the triangular piece 9 is formed on the corner of the base material on the side of the secret information writing area Y2. To be left
Strong adhesive layers 5A and 5B were provided.

Further, as shown in FIG. 3, the weak pressure-sensitive adhesive layer 7 may be provided not on the entire surface of the base material 6 but only on the planned adhesion surface.

FIG. 4 shows a state in which the mail form 1 is printed to form the printing layer 8 and then folded and sealed.

FIG. 5 is an enlarged view of the portion B of FIG. 4, where the adhesive force between the base material 6 and the weak adhesive layer 7 is α, the adhesive force between the weak adhesive layers 7 is β, and the weak adhesive layer is β. When the adhesive force between the agent layer 7 and the back surface of the printing layer 8 is γ and the adhesive force between the weak adhesive layer 7 and the front surface of the printing layer 8 is δ, the adhesive force α> the adhesive force β, the adhesive force γ> The relationship is the adhesive strength δ.

FIG. 6 is a perspective view showing the state of peeling.
When the mail form 1 is peeled off as shown in FIG. 6, by cutting the perforations 4A and 4B, the triangular pieces 9 firmly adhered by the strong adhesive layer 5A and the strong adhesive layer 5B are filled with secret information. It is left at the corner on the base material on the side of the column Y2.

FIG. 7 is a schematic diagram showing the position of the perforations 4 in the mail form 1, and FIG. 8 is a schematic diagram showing the state of peeling. As shown in Figure 8, mail form 1
If you try to peel off and try to see confidential information, be sure to
Since peeling cannot be performed unless the cut is made, the presence or absence of peeling can be determined by whether or not the perforations 4 are cut.

Next, the specific layer structure will be described in more detail.

The base material 6 is usually made of white fine paper, but if the surface is roughened by corona treatment or matte treatment, a synthetic resin film of polyethylene terephthalate, polyethylene, polypropylene, vinyl chloride, etc. Can also be used.

The weak pressure-sensitive adhesive layer 7 may use a pressure-sensitive adhesive containing SBR (styrene-butadiene-rubber) as a resin component and microsilica as a volatile component.
In addition, a small amount of NR (natural rubber), PMMA (polymethylmethacrylate) or the like may be added in order to improve the adhesion between the weak adhesives. Further, it is possible to prevent deterioration due to ultraviolet rays by adding an alkaline component such as ammonia, which absorbs ultraviolet rays better than the resin component. Further, a small amount of vinyl acetate may be added.

As the additives for improving the printability, various dispersions and non-metal powders may be used in addition to microsilica.

Among the components of the adhesive mentioned above, SBR is
Adhesiveness to plain paper is good, and self-adhesiveness between adhesives is not so good. NR does not have good adhesion, but has good self-adhesion. PMMA has good adhesion and self-adhesion.

Therefore, in order to make the adhesive force α strong, the adhesive having almost no self-adhesiveness between the adhesives and having good adhesiveness is used instead. However, as it is, although the relational expression of “adhesive force α> adhesive force β” is satisfied in the above equation, the adhesive force γ
Therefore, by adding micro silica to the weak adhesive to make the surface a little rough, the printability by a non-impact printer is improved, and the adhesive force between the toners forming the weak adhesive layer 7 and the printing layer 8 is improved. I tried to raise it.

Since the toner is fixed to the weak adhesive layer 7 by heat, even if pressure is applied from the facing surface during sealing, the toner does not transfer to the facing surface during peeling. Further, when the print layers 8 made of toner are closely attached so as to overlap each other, the toner itself has a weak adhesive property, but the adhesive force at that part is weakened. Therefore, it is desirable that the print layers are not overlapped depending on the print layout.

In this example, the components of the weak pressure-sensitive adhesive layer 7 were mixed and used in the following proportions. SBR 20-25 parts Water 65-70 parts Microsilica 10 parts NR Trace PMMA Trace

As a method of applying the pressure-sensitive adhesive when forming the weak pressure-sensitive adhesive layer 7, a spray method, a gravure method, a nozzle method, a flexo method or the like can be used.

Next, a method of using the mail form 1 will be described. This mail form 1 uses a printer, such as a non-impact printer, to provide public information such as address and name in public information entry area X, and other public information in confidential information entry areas Y1 and Y2. Print on one side at a time. Since the public information and the secret information can be printed on one side at a time, the printing speed is fast and it is easy and reliable to match both information.

After that, the mail form 1 is bent from the planned folding lines 2 and 3 to be folded in three, and the weak adhesive layer 7 is formed.
And the strong adhesive layers 5A and 5B are brought into close contact with each other.

If the mail form 1 is mailed in this state, the postage will be treated as a postcard. By peeling the base material 6 as shown in FIG. 6, the recipient can open the confidential information without destroying it and can read the confidential information. When the base material 6 is peeled off, the triangular piece 9
Is firmly adhered to the secret information entry column Y2 side, so by cutting the perforations 4A and 4B, the peeled base material 6 is left at the corner on the secret information entry column Y2 side base material. Separated from.

9 and 10 are views showing another embodiment of the present invention. As shown in the figure, the perforations 10 are provided in the longitudinal direction of the mail form 1, and a cut portion is provided to facilitate peeling. 11 is provided. Further, the portion 12 left on the side edge portion on the base material by cutting the perforations 10 at the time of peeling is firmly bonded so as not to be peelable.

Further, FIGS. 11 and 12 are views showing another embodiment of the present invention, in which the perforations 13 are provided on the upper and lower sides of the mail form 1 in the lateral direction, and a cut portion is provided to facilitate peeling. 14 are provided. In this case as well, as in the other examples, the portions left on both side edges of the base material during the peeling are firmly adhered so that they cannot be peeled off.

13 and 14 are views showing another embodiment of the present invention. In this embodiment, the perforations 15 are provided such that a non-cut portion between one perforation and the adjoining perforations and an uncut portion 16 are partly long. By providing the uncut portion 16, when the perforation 15 is cut at the time of peeling, the uncut portion 16 is cut off irregularly as compared with the normal perforation cut, and further the normal perforation cut is performed. Since the interval is longer than that, it is possible to more clearly determine the presence or absence of peeling.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the present invention. The mail form is not limited to three-fold, and may be two-fold, four-fold or more, and the folding method is not limited. In addition, the number of print surfaces and print information are not particularly limited. It is desirable that the size and weight when folded are ordinary postcards defined by the Postal Law, but they are not particularly limited in consideration of the usage form. The mail form may be continuous paper or single-cut paper when printing information, and the printer is not limited to a non-impact printer, and other printers may be used. Information or the like that does not require confidentiality can be appropriately printed on this mail form. Further, the mail form can be folded into a postcard and then printed as necessary. Further, a cut portion may be appropriately provided in order to facilitate peeling.

The position of perforation for determining the presence or absence of peeling is not particularly limited as long as it is provided at a position where the mail form cannot be peeled off without cutting the perforation. There is no limitation on how to apply it or how to apply it.

[0039]

As described above in detail, according to the present invention, a perforation is provided for determining the presence or absence of peeling, and peeling is not possible unless the perforation is cut. It is forbidden for a third party to peel off the mail form and view confidential information, and even if it is seen by a third party, the evidence remains due to the perforation being cut, so improving the security of the mail form. You can

[0040]

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a mail form according to the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is a sectional view of FIG.

FIG. 4 is a view showing a state in which the foam of the example is folded back and brought into close contact.

FIG. 5 is a partially enlarged view of a B part of FIG.

FIG. 6 is a perspective view in which the foam of the example is peeled off.

FIG. 7 is a schematic view showing the position of perforations in the foam of the embodiment.

FIG. 8 is a schematic view showing a state where the mail form of FIG. 7 is peeled off.

FIG. 9 is a schematic view showing another embodiment of a mail form according to the present invention.

FIG. 10 is a schematic view showing a state where the mail form of FIG. 9 is peeled off.

FIG. 11 is a schematic view showing another embodiment of a mail form according to the present invention.

FIG. 12 is a schematic view showing a state where the mail form of FIG. 11 is peeled off.

FIG. 13 is a schematic view showing another embodiment of the mail form according to the present invention.

FIG. 14 is a schematic view showing a state where the mail form of FIG. 13 is peeled off.

[Explanation of symbols]

 1 Mail form 2 Planned folding line 3 Planned folding line 4 Perforation 4A Perforation 4B Perforation 5A Strong adhesive layer 5B Strong adhesive layer 6 Base material 7 Weak adhesive layer 8 Printing layer 9 Triangular piece 10 Perforation 11 Cut part 12 Remaining part 13 Perforation 14 Cut part 15 Perforation 16 Uncut part X Public information entry column Y1 Confidential information entry column Y2 Confidential information entry column

Claims (1)

[Claims] 1. A weak pressure-sensitive adhesive layer that adheres by pressure is formed on substantially the entire surface of a base material to be bonded, a printing layer is formed on the surface of the weak pressure-sensitive adhesive layer, and the base material is folded or laminated. A mail form for adhering the weak adhesive layers on the opposite surfaces to each other to conceal the printing layer and then peeling from the weak adhesive layer, and a perforation for determining the presence or absence of peeling. A mail form characterized by being provided.