JP2023097659A - Concealed postcard - Google Patents

Abstract

To provide a structure capable of reliably and easily bonding a first slip and a second slip in a concealed postcard which can conceal confidential information by bonding the first slip and the second slip in a peelable mode.SOLUTION: In a concealed postcard 1 which comprises: a first slip 2 provided with a confidential information description part 12 on one surface side; a second slip 3 coupled with the first slip 2 via a folding line 6 and formed with an adhesive layer 20 on one surface side; and a peeling sheet 4 peelably bonded to the adhesive layer 20, and is constituted to bond the second slip 3 to the confidential information description part 12 of the first slip 2 in a peelable mode by peeling the peeling sheet 4 and being folded at the folding line 6, a peeling port 22 is provided inside the peeling sheet 4 and an easy bent line 25 which makes the peeling sheet 4 easy to be bent is formed.SELECTED DRAWING: Figure 6

Description

TECHNICAL FIELD The present invention relates to a concealed postcard that can be mailed with the information contained therein concealed.

In order to prevent the written information from being learned by a third party during mailing, the first slip and the second slip are combined through a folding line, and the confidential information written on the first slip is There is known a concealed postcard that can be mailed while concealing the confidential information by sticking two pieces of paper together in a removable manner (for example, Patent Document 1). In the concealed postcard of Patent Document 1, an adhesive layer is provided on the entire second piece of paper, and after writing confidential information on the side of the first piece of paper, the release sheet is peeled off to expose the adhesive layer, and the adhesive layer is exposed at the folding line. It is configured to fold back and attach the second piece of paper to the first piece of paper. Further, the cover-up postcard of Patent Document 1 is configured such that when the first and second paper strips that are pasted together are peeled off again and opened, the first and second paper strips are difficult to re-stick.

JP 2010-058318 A

In the cover-up postcard disclosed in Patent Document 1, since the adhesive layer is formed over the entire area of the second piece of paper, the adhesive adheres to the fingertips when the second piece of paper is pinched with the fingers after the release sheet has been removed. Therefore, when pasting the first piece of paper and the second piece of paper together, care must be taken not to touch the adhesive surface of the second piece of paper. In addition, if the adhesive adheres to the fingertip due to carelessness, the adhesive layer at that location may be peeled off from the second piece of paper, resulting in insufficient bonding of the first piece of paper and the second piece of paper. Since the cover-up postcard of Patent Document 1 is assumed to be used by an unspecified number of people, even if a clumsy person uses it for the first time, the first piece of paper and the second piece of paper can be reliably and easily pasted together. It is hoped that it can be done.

The present invention has been made in view of such a situation, and is a concealment postcard capable of concealing confidential information by pasting together a first piece of paper and a second piece of paper in a removably peelable manner. It is an object of the present invention to provide a configuration capable of reliably and easily bonding a second piece of paper.

In order to solve the above-mentioned problems, the inventors conducted extensive studies and found that the release sheet was not completely peeled off, but was left on the outer side of the second paper strip, and the first paper strip and the second paper strip were partially pasted together. After that, peel off the release sheet from the outside of the second piece of paper, and attach the entire second piece of paper to the first piece of paper, so that the second piece of paper can be easily picked without sticking the fingertips to the adhesive. I discovered that I can work with Then, after repeated trial and error so that many people can surely implement such a method, the present invention has been completed.

The present invention comprises a first piece of paper provided with a confidential information writing part on one side, and a second piece of paper coupled with the first piece of paper via a folding line and having an adhesive layer formed on the one side of the piece of paper, and a release sheet that is detachably attached to the pressure-sensitive adhesive layer, and by peeling off the release sheet and folding back along the folding line, the secret information writing portion of the first piece of paper is reattached. In the cover-up postcard configured to allow the second pieces of paper to be pasted together in a peelable manner, the release sheet is provided with a peeling opening on the inside thereof, and has an easily bendable line that allows the release sheet to be easily bent. It is a cover-up postcard characterized by being formed.

Here, "removable" refers to cleanly peeling off without destroying the substrate after adhering. In addition, the "easily bendable line" is a line along which the release sheet can be easily bent, and is composed of perforations, half-cut lines, crease lines, and the like. Further, the “inner side” of the easily bending line refers to the side closer to the folding line, and the “outer side” of the easily bending line refers to the side opposite to the inner side.
In such a configuration, when the release sheet is peeled off from the peeling opening, when the release sheet is peeled up to the easily bending line, the release sheet is bent at the easily bending line by the force of peeling off the release sheet, and accordingly, the release sheet is peeled. The force required to peel the sheet increases abruptly. This is thought to be because when the easily bendable line is bent, the inclination of the second piece of paper and the release sheet changes, making it difficult for the force to pull the release sheet to be applied in the direction of peeling the release sheet from the adhesive layer. be done. Thus, in the present invention, when the release sheet is peeled up to the easy breaking line, the force required for peeling increases sharply. As the release sheet is caught, the release operation naturally stops temporarily. Therefore, according to this configuration, the peeling operation of the release sheet can be reliably stopped while the outer portion remains, without special attention being paid when the first piece of paper and the second piece of paper are pasted together. can be done. Therefore, according to the present invention, as described above, the first paper piece and the second paper piece are partially pasted together with the outer portion of the release sheet left, and then the release sheet is completely peeled off to form the first paper piece. It is possible to have an unspecified number of people reliably perform the two-step pasting work, such as pasting all the second pieces of paper together.

In the present invention, the second piece of paper has a background pattern printed on the one side, and the surface of the release sheet has lines printed along part or all of the easily bendable lines. A configuration is proposed.

In such a configuration, when the first piece of paper and the second piece of paper are pasted together, the tint block overlaps the secret information writing part, so it is extremely difficult to see through the secret information. On the other hand, when the tint block is printed on the second piece of paper, the tint block can be seen through the thin release sheet, making it difficult to visually recognize the position of the easily bendable line formed on the release sheet. On the other hand, in such a configuration, the position of the easily bendable line is clearly indicated by the line printed along the easily bendable line, so even if the easily bendable line itself is difficult to see, when the release sheet is peeled off. In addition, the position of the bendable line can be reliably grasped.

Further, in the present invention, a transparent resin film is bonded to the one side of the second paper piece so as to be releasable and difficult to reattach to the second paper piece, and the resin film is attached to the second paper piece. The pressure-sensitive adhesive layer is formed thereon, and the resin film and the second piece of paper are peeled off again from an opening provided at the outer corner of the second piece of paper, thereby bonding the second piece of paper. The first paper piece and the second paper piece are configured to be separable, and the opening is formed with a half-cut line that cuts off the outer corner of the second paper piece and does not cut the resin film. proposed.

Here, the "outside" of the second piece of paper refers to the side that is not connected to the first piece of paper, that is, the side opposite to the side on which the folding line is formed. With such a configuration, if a third party peels off the first and second pieces of paper during mailing, the first and second pieces of paper cannot be re-attached, so the fact that the third party has opened the package cannot be recognized. It will be exposed soon. Therefore, according to such a configuration, unauthorized opening by a third party can be prevented. In addition, in such a configuration, the resin film and the second paper piece bonded in advance are peeled off again, so that the bonded first paper piece and the second paper piece are peeled off. There is an advantage that the opening can be easily formed simply by forming a line.

Further, in the present invention, the easily bending lines are perforations, and the release sheet has a configuration in which a ticket piece that can be separated at the easily bending lines is printed on the outer side of the easily bending lines. proposed.

Here, the "ticket piece" refers to a coupon ticket, various tickets, and the like. Also, the "ticket piece" may be a copy (stub) for the concealed postcard body. In general, the release sheet after peeling is curled and is not suitable for use as a ticket. Since it curls less afterward, it is suitable for use as ticket pieces. The reason why the outer portion curls less is that after the first and second paper pieces are partially pasted together, the second paper piece is peeled off, so the peeling speed is slower than the inner portion of the easily bendable line. Conceivable. Thus, according to such a configuration, the release sheet after peeling can be used as a ticket piece, and the easily bendable line can be used as a separation line for separating the ticket piece.

Moreover, it is desirable that the bendable line according to the present invention is substantially parallel to the folding line. With such a configuration, the peeling direction of the release sheet and the easily bendable line intersect at an angle close to a right angle, so that the release sheet is easily bent at the easily bendable line when the release sheet is peeled off.
Moreover, it is desirable that the bendable line according to the present invention is formed so as to pass through the outer side of the central portion of the release sheet. This is because when the release sheet is peeled off to the bendable line and the first and second pieces of paper are pasted together, the ends of the release sheet protrude outside the second piece of paper, making it easier to pull the release sheet.
Moreover, it is desirable that the bendable line according to the present invention is a perforation. This is because the release sheet of a cover-up postcard is generally thin, and half-cutting and creasing are more difficult than perforation.
Moreover, it is desirable that the cover-up postcard of the present invention is one in which the first piece of paper and the second piece of paper are pasted together in such a manner that re-sticking is difficult. With such a configuration, if a third party opens the concealed postcard without permission, it cannot be reattached, and the fact that the postcard has been opened without permission is easily exposed, so that third parties can more reliably prevent peeping of confidential information. . In addition, in the cover-up postcard of the present invention, the first paper piece and the second paper piece can be pasted together accurately, and there is no misalignment between the first paper piece and the second paper piece in the pasting work. Even if it is difficult to re-attach the paper piece and the second paper piece, no problem occurs.

As described above, according to the present invention, in a concealment postcard capable of concealing confidential information by pasting together the first piece of paper and the second piece of paper in a removable manner, the first piece of paper and the second piece of paper can be It becomes possible to stick together reliably and easily.

1 is a surface view of a concealed postcard 1 of an embodiment; FIG. 2 is a back view of the concealed postcard 1. FIG. 2 is a cross-sectional view showing the layer structure of the concealment postcard 1. FIG. FIG. 4A is a rear view of the cover-up postcard 1 and FIG. FIG. 4A is a front view and FIG. 8B is a back view showing a usage example of the cover-up postcard 1; FIG. 4 is an explanatory diagram showing a method of pasting together the first piece of paper 2 and the second piece of paper 3; FIG. 3 is a cross-sectional view showing a method of pasting together the first piece of paper 2 and the second piece of paper 3; FIG. 8 is a cross-sectional view continuing from FIG. 7 and showing a method of bonding the first piece of paper 2 and the second piece of paper 3 together; FIG. 4 is an explanatory diagram showing a method of opening the concealed postcard 1; FIG. 4 is a cross-sectional view showing a method of opening the concealed postcard 1; (A) is a back view showing another usage example of the concealed postcard 1, and (B) is a plan view of the coupon 32 separated from the release sheet 4. FIG.

Embodiments of the present invention are described according to the following examples.
In the following examples, one aspect of the present invention corresponds to the back surface of the concealed postcard 1. FIG.

FIG. 1 is a front view of the concealment postcard 1 of the embodiment, and FIG. 2 is a back view of the concealment postcard 1 of the embodiment. The concealed postcard 1 of this embodiment is formed by connecting a first sheet 2 and a second sheet 3, which are normal postcard size, to the left and right. At the boundary between the first piece of paper 2 and the second piece of paper, a straight folding line 6 consisting of perforations is formed in the vertical direction so as to traverse the concealed postcard 1. - 特許庁The concealed postcard 1 can be folded in two by folding back along the folding line 6, and the first piece of paper 2 and the second piece of paper 3 can be overlapped. In the following description, the side connected by the folding line 6 is the inner side of the first paper piece 2 and the second paper piece 3, and the side opposite to the inner side is the outer side of the first paper piece 2 and the second paper piece 3.

As shown in FIGS. 1 and 2, the first piece of paper 2 has an address writing portion 10 on the front side and a secret information writing portion 12 on the back side. The address writing section 10 is a section for writing the mailing address of the concealed postcard 1, and a postal code entry frame 11 is printed at the top. The confidential information entry part 12 is a place where confidential information to be concealed and mailed is entered.

Almost the entire back side of the second paper piece 3 serves as a pasting portion 13 that is pasted to the confidential information writing portion 12 of the first paper piece 2 . As shown in FIG. 3, an adhesive layer 20 for adhering the first piece of paper 2 and the second piece of paper 3 is formed on the laminating portion 13, and the release sheet 4 is peeled off so as to cover the adhesive layer 20. affixed as possible. That is, according to such a configuration, by peeling the release sheet 4 from the adhesive layer 20 and folding back the concealed postcard 1 along the folding line 6, the second sheet 3 can be pasted together. Further, the front side of the second piece of paper 3 is a non-confidential information writing portion 15 in which arbitrary information can be written. The information written in the non-confidential information writing part 15 is not hidden and is mailed in a visible state.

FIG. 3 is a cross-sectional view showing the layered structure of the concealment postcard 1. As shown in FIG. The first piece of paper 2 and the second piece of paper 3 are composed of a continuous paper base material 5 . The paper base material 5 is made of high-quality paper for official postcards. However, the material of the paper substrate 5 is not limited to this, and various papers and resin films can be used. The first paper piece 2 consists of only the paper base material 5, and the paper base material 5 is exposed on the front and back sides of the first paper piece 2.例文帳に追加The second paper piece 3 is composed of a paper substrate 5 and a release layer 18 formed on the back surface of the paper substrate 5 , and the paper substrate 5 is exposed on the front side of the second paper piece 3 . A resin film 19 is bonded onto the release layer 18 on the back side of the second paper piece 3 , and an adhesive layer 20 is formed on the resin film 19 . Then, a release sheet 4 is releasably adhered so as to cover the adhesive layer 20 . The suitable thickness of each layer is 90 to 220 μm for the paper substrate 5, 2 to 7 μm for the release layer 18, 20 to 50 μm for the resin film 19, 10 to 30 μm for the adhesive layer 20, and 50 to 50 μm for the release sheet 4. 100 μm. It should be noted that the dimensions of the concealment postcard of the present invention are not limited to such numerical ranges.

The release layer 18 is formed by coating the back surface of the paper substrate 5 with a release agent, and is formed over the entire back surface of the second paper piece 3 . Although varnish is used as the release agent in this embodiment, the type of the release agent is not particularly limited as long as it can be re-separated from the resin film 19 .

The resin film 19 is made of a transparent film-like olefin-based hot-melt adhesive, and is bonded to the entire back side of the second paper piece 3 by being heat-pressed to the release layer 18 of the second paper piece 3 . be. The bonding between the second paper piece 3 (the peeling layer 18) and the resin film 19 is removable. The cover card 1 is opened by separating the first piece of paper 2 and the second piece of paper 3. The release layer 18 and the resin film 19 are difficult to adhere under normal conditions, and once the release layer 18 and the resin film 19 are re-separated, they cannot be re-adhered. The resin film 19 is made of a transparent material so that when the concealed postcard 1 is opened, the secret information in the secret information writing part 12 can be seen from above the resin film 19 .

The adhesive layer 20 is formed by applying a rubber-based adhesive onto the resin film 19 . The adhesive that constitutes the adhesive layer 20 is transparent so that the confidential information in the confidential information writing section 12 can be seen from above the adhesive layer 20 when the concealed postcard 1 is opened. The type of adhesive is not limited to rubber-based adhesives, and adhesives used in existing concealed postcards, such as acrylic, silicone, and urethane-based adhesives, can be used. The adhesive layer 20 is formed over substantially the entire surface of the second paper piece 3, but as shown in FIG. is the non-sticking portion 21 missing.

The release sheet 4 is formed by applying a release agent to a substrate made of paper or film. As the base material and release agent of the release sheet 4, those used in existing concealed postcards can be employed. The release sheet 4 has substantially the same size as the second piece of paper 3 and is adhered to the entire area of the adhesive layer 20 so as to overlap the second piece of paper 3 . As shown in FIG. 3 , the inner (folding line side) edge of the release sheet 4 is not attached to the second piece of paper 3 at the non-attached portion 21 where the adhesive layer 20 is missing, and is in a floating state. It's becoming As shown in FIG. 2, the concealed postcard 1 has a peeling opening 22 for peeling the release sheet 4 from the adhesive layer 20 at the inner lower corner of the second paper piece 3 provided with the non-sticking part 21.

As shown in FIGS. 2 and 3, the release sheet 4 is formed with easily bendable lines 25 . The easily bendable line 25 consists of linear perforations, and is formed substantially parallel to the folding line 6 so as to longitudinally extend outside (left side) of the release sheet 4 from the central portion thereof. According to this configuration, when the release sheet 4 is peeled off from the peeling port 22 to the outside, when the release sheet 4 is peeled off to the easily bendable line 25, the tensile force for peeling the release sheet 4 and the pressure-sensitive adhesive layer 20 that resists peeling are applied. 4, the release sheet 4 naturally bends along the bend line 25 as shown in FIG. Note that the perforations forming the easily bendable lines 25 are formed only on the release sheet 4 and not formed on the paper substrate 5 of the second piece of paper 3 .

As shown in FIG. 2, on the surface of the release sheet 4 (the back side of the concealed postcard 1), an arrow 23 indicating the position of the peeling opening 22 is printed at the inner lower corner, and the arrow indicating the peeling direction from the peeling opening 22 is printed. 24 is printed on the outside (left side) of the peel-off mouth 22 . In addition, as shown in FIG. 2 , on the release sheet 4 , an instruction 27 is printed inside (on the right side of) the easily bendable line 25 to indicate how to bond the first piece of paper 2 and the second piece of paper 3 together.

Further, as shown in FIG. 4 , on the back side of the second piece of paper 3 , a tint block 17 is printed on the entire back surface of the paper base material 5 . By superimposing the tint block 17 on the confidential information writing portion 12 in a state where the first paper piece 2 and the second paper piece 3 are pasted together, it becomes extremely difficult to see through the confidential information. On the other hand, as shown in FIG. 2, a line 27 is printed along the easily bendable line 25 on the surface of the release sheet 4 (the back side of the concealed postcard 1). This is because, although not shown in the drawing, the tint block 17 printed on the second piece of paper 3 is visible through the thin release sheet 4, making it difficult to visually recognize the perforations forming the easily bendable line 25. is. In this way, if the line 27 is printed along the easily bendable line 25 to clearly indicate the position of the easily bendable line 25, the release sheet 4 can be peeled off even if the easily bendable line 25 is difficult to see due to the tint block 17. In this case, it is possible to easily confirm the position where the peeling operation should be stopped.

As shown in FIGS. 1 and 3, an opening 28 is provided at the outer lower corner of the second paper piece 3 to open the concealed postcard 1 by peeling off the pasted first paper piece 2 and second paper piece 3 again. be done. At the opening 28, a half-cut line 30 is formed by obliquely cutting the outer lower corner of the paper base material 5 and continuing the resin film 19 without cutting it. Such an opening 28 can be easily peeled off at the interface between the second paper piece 3 (peeling layer 18) and the resin film 19 by pinching the cut-off portion of the paper substrate 5 and bending it to the back side. . Also, an arrow 29 is printed on the opening 28 to indicate that it is the opening 28 .

In this embodiment, the peel strength (interfacial peel strength) between the release sheet 4 and the adhesive layer 20 is set weaker than the peel strength between the release layer 18 and the resin film 19 and the peel strength between the resin film 19 and the adhesive layer 20. be done. With such a configuration, when the release sheet 4 is released from the adhesive layer 20 , no separation occurs at the interface between the release layer 18 and the resin film 19 or at the interface between the resin film 19 and the adhesive layer 20 . Moreover, the peeling force between the peeling layer 18 and the resin film 19 is desirably a value at which peeling does not occur during mailing, and at the time of opening, peeling easily without causing interfacial peeling or material destruction in other parts. Specifically, the peeling force between the peeling layer 18 and the resin film 19 is preferably in the range of 0.1 to 3.0 N/25 mm, and more preferably in the range of 0.2 to 0.6 N/25 mm. is more desirable.

A typical method of using the concealed postcard 1 of the embodiment will be specifically described below.
As a typical usage form of the concealment postcard 1 of the present embodiment, an individual writes confidential information (such as personal information) in the confidential information entry section 12 of the concealment postcard 1 distributed by the business operator, including sending it back. In such a usage pattern, generally, a business operator prints confidential information entry fields and an address on a concealed postcard 1 and distributes it to each individual.

FIG. 5 shows an example of using the concealed postcard 1 of this embodiment as an application form for membership. In such an example, as shown in FIG. 5(A), the business operator prints the mailing address of the membership application form in the address entry section 10, and, as shown in FIG. After printing the application form, a concealed postcard 1 is distributed to prospective customers. In this example, nothing is printed in the non-confidential information entry section 15. FIG. Then, the applicant for membership fills in the confidential information (personal information, etc.) in the confidential information entry section 12 (enrollment application form) of the distributed concealed postcard 1, pastes the first piece of paper 2 and the second piece of paper 3 together, After concealing confidential information, a concealed postcard 1 is posted in a post. As a result, the concealed postcard 1 is mailed to the destination without the confidential information entered in the confidential information entry section 12 being known by a third party.

When pasting the first piece of paper 2 and the second piece of paper 3 together, first, as shown in FIG. keep on.
Next, as shown in FIG. 6B, the release sheet 4 is peeled off from the peeling port 22 at the lower inner corner to the easily bendable line 25 . At this time, when the release sheet 4 is peeled up to the easily bendable line 25, the force required for peeling increases rapidly. As if caught, it stops naturally. As shown in FIG. 7A, the release sheet 4 is bent and peeled off until reaching the easily bending line 25. When the release sheet 4 is bent at the easily bendable line 25 by the force of peeling off the release sheet 4, the inclination between the second paper piece 3 and the release sheet 4 changes, and the release sheet 4 is pulled, as shown in FIG. 7(B). This is probably because it becomes difficult to apply a force in the direction in which the release sheet 4 is peeled off from the adhesive layer 20 .

After peeling the release sheet 4 up to the easily bendable line 25, as shown in FIGS. A second piece of paper 3 is pasted together. At this time, since the adhesive layer 20 is attached to the release sheet 4 on the outer side of the second paper piece 3, the second paper piece 3 is only the inner portion of the easily bendable line 25 where the release sheet 4 is peeled off. are pasted together. In this way, if the first paper strip 2 and the second paper strip 3 are pasted together with the release sheet 4 adhered to the outer side of the second paper strip 3, the fingertips do not adhere to the adhesive layer 20, and the second paper strip 3 can be easily peeled off. The first paper piece 2 and the second paper piece 3 can be easily pasted together by pinching the outside of the two paper pieces 3 with fingers.

Finally, as shown in FIGS. 6(D) and 8(C), the release sheet 4 is pulled out from between the first paper piece 2 and the second paper piece 3 by pulling the edge of the release sheet 4, and then the second paper piece 4 is removed. The outer portions of the first paper piece 2 and the second paper piece 3 are pasted together. As a result, the bonding of the first sheet 2 and the second sheet 3 is completed, and the confidential information (personal information, etc.) entered in the confidential information entry section 12 is concealed.

As described above, in the concealable postcard 1 of this embodiment, the first paper piece 2 and the second paper piece 3 are partially pasted together when the release sheet 4 is peeled off to the bendable line 25, and then the release sheet 4 is pulled out. If the whole is pasted together, the first paper piece 2 and the second paper piece 3 can be easily pasted together by pinching the outer part of the second paper piece 3 without sticking the fingertips to the adhesive layer 20.例文帳に追加In addition, in this embodiment, when the release sheet 4 is peeled from the peeling port 22 to the easily bendable line 25, the release sheet 4 is bent, so that the force required for peeling increases rapidly, and the peeling operation becomes natural. Therefore, the peeling operation can be reliably stopped at the easily bendable line 25 without excessive peeling of the peeling sheet 4 without paying special attention. Therefore, in this embodiment, as described above, the first paper piece 2 and the second paper piece 3 are partially pasted together when the release sheet 4 is peeled off to the bendable line 25, and then the release sheet 4 is attached. It is possible to have an unspecified number of people reliably perform the two-step bonding work such as pulling out and bonding the whole.
Therefore, according to the cover-up postcard 1 of the present embodiment, it is possible to attach the first piece of paper 2 and the second piece of paper 3 together more reliably and easily than in the conventional configuration.

The mailed concealment postcard 1 is unsealed by reseparating the first paper piece 2 and the second paper piece 3 at the mailing address. Specifically, as shown in FIG. 9(A)→9(B)→9(C) and FIG. The first paper piece 2 and the second paper piece 3 are peeled again from the opening 28 at the interface between the peeling layer 18 and the resin film 19, and the concealed postcard 1 is opened. In such an unsealed state, the resin film 19 and the adhesive layer 20 are laminated on the confidential information writing part 12 of the first sheet 2. Since the resin film 19 and the adhesive layer 20 are transparent, the resin film 19 and the adhesive layer 20 are laminated. Through the adhesive layer 20, the secret information writing part 12 can be visually recognized.

Since the resin film 19 is bonded to the release layer 18 of the second paper piece 3 so as to be difficult to re-stick, once the first paper piece 2 and the second paper piece 3 are unsealed, they cannot be stuck together again. According to such a configuration, if a third party opens the concealed postcard 1 during mailing without permission, the fact can be easily revealed, so that it is possible to more reliably prevent the third party from peeking at the confidential information. On the other hand, in the configuration in which the first paper piece 2 and the second paper piece 3 are difficult to re-stick, even when the first paper piece 2 and the second paper piece 3 are pasted together, even if positional deviation occurs, they can be peeled off and re-sticked. Although not possible, as described above, in the cover-up postcard 1 of the present embodiment, compared with the conventional configuration, the first paper piece 2 and the second paper piece 3 can be pasted together more accurately, and the first paper piece 2 and the second paper piece 3 can be pasted together. Therefore, even if the first paper piece 2 and the second paper piece 3 are difficult to re-stick, no problem occurs.

In addition, in the present embodiment, since the half-cut line 30 that cuts off the outer corner of the paper base material 5 and does not cut off the resin film 19 is formed in the opening 28, as shown in FIG. By pinching the corner cut off along the cut line 30 and bending it backward (downward in the figure), the paper base material 5 and the release layer 18 cut off along the half cut line 30 are separated from the resin film 19. It can be easily peeled off. In this way, if the concealed postcard 1 is to be opened by reseparating between the second paper piece 3 and the resin film 19 that are joined in advance, a half-cut line 30 is formed at the corner of the second paper piece 3. By doing so, the opening 28 for opening the concealed postcard 1 can be easily formed.

Although the embodiments of the present invention have been described above, the present invention is not limited to the configurations of the above embodiments, and for example, the configurations of the above embodiments can be changed as follows.

In the above embodiment, the secret information writing portion 12 is provided on the entire back side of the first paper piece 2 , but the secret information writing portion 12 may be provided only on a partial area of the back side of the first paper piece 2 . Further, in the above embodiment, the second paper piece 3 has substantially the same size as the first paper piece 2, but the size and shape of the second paper piece 3 are such that the confidential information description part 12 can be concealed. I wish I had. In the above embodiment, the first sheet 2 and the second sheet 3 are connected in the horizontal direction of the concealed postcard 1, but the first sheet 2 and the second sheet 3 may be connected in the vertical direction. . In addition, although the address writing section 10 is provided on the front side of the first sheet 2 in the above embodiment, the address writing section 10 may be provided on the front side of the second sheet 3 . Alternatively, the address writing portion 10 and the secret information writing portion 12 may be provided on the back side of the first piece of paper 2, and only the secret information writing portion 12 may be concealed by pasting the second piece of paper 3 thereon.

Further, in the above-described embodiment, the easily bendable lines 25 are formed of perforations, but they may be formed of half-cut lines or crease lines instead of perforations. Similarly, the fold lines 6 are not limited to perforations, and can be formed by half-cut lines or crease lines. However, since the release sheet 4 is generally made of a thin base material, it is more difficult to half-cut or creasing than perforation. .

Also, in the above embodiment, the easily bendable line 25 is formed substantially parallel to the folding line 6 , but the easily bending line 25 may be inclined with respect to the folding line 6 . However, it is desirable that the easily bendable line 25 is at an angle close to being parallel to the folding line 6 . This is because the peeling direction of the release sheet 4 and the easy bend line 25 intersect at an angle close to a right angle, so that the release sheet 4 is easily bent at the easy bend line 25 when the release sheet 4 is peeled off. In addition, in the above embodiment, the easily bendable line 25 is formed so as to vertically cut through the outer portion of the release sheet 4. May be placed inside. However, it is desirable that the easily bendable line 25 is formed so as to pass through the outside of the central portion of the release sheet 4 . As shown in FIG. 8, when the release sheet 4 is peeled off to the bend line 25 and the first paper piece 2 and the second paper piece 3 are pasted together, the end of the release sheet 4 protrudes outside the second paper piece 3. , the release sheet 4 can be easily pulled out.

In the above embodiment, only one easily bendable line 25 is formed on the release sheet 4, but a plurality of easily bendable lines 25 may be arranged side by side in the direction in which the release sheet 4 is peeled off. With such a configuration, the peeling operation of the release sheet 4 can be temporarily stopped at a plurality of locations, so it is possible to prevent the release sheet 4 from being peeled off vigorously and damaging the paper base material and the release sheet. Become.

In the above embodiment, the peeling opening 22 is provided at the inner lower corner of the second paper piece 3, but the peeling opening 22 may be provided inside the release sheet 4 (on the folding line side). It may be provided at the inner upper corner of the second paper piece 3, or the entire inner edge of the second paper piece 3 may be used as the peeling port 22. - 特許庁

In addition, once the concealed postcard 1 of the above embodiment is opened, it becomes difficult to reattach the first piece of paper 2 and the second piece of paper 3, but the present invention includes one that can be reattached after opening. In the above embodiment, the resin film 19 made of an olefin-based hot-melt adhesive is joined to the release layer 18 of the second paper piece 3 in order to make the first paper piece 2 and the second paper piece 3 releasable. However, the resin film 19 is not limited to one sheet, and a plurality of sheets may be laminated on the release layer 18 . Further, in the present invention, it is possible to use any film in place of the resin film 19 as long as it can be re-separably bonded to the release layer 18 . For example, instead of the resin film 19 according to the embodiment, a UV curable medium layer may be laminated on the release layer 18 of the second paper piece 3 .

In addition, the release sheet 4 according to the above embodiment becomes unnecessary after being peeled off from the second paper piece 3 and is discarded. be. FIG. 11 shows an example of use in which a coupon 32 is printed on the release sheet 4 in addition to the configuration of the example of use shown in FIG. In such an example, as shown in FIG. 11(A), the coupon 32 is printed outside the bendable line 25 . According to such a configuration, after peeling from the release sheet 4, the release sheet 4 can be cut along the easily bendable line 25, and only the coupon 32 can be separated and stored. Since the easily bendable lines 25 are perforations, the coupon 32 can be easily separated without using scissors or the like.

Here, as in the example of use in FIG. 11, the reason why the coupon 32 is printed on the outer side of the easily bendable line 25 is that in the release sheet 4 after peeling, the outer portion of the easily bendable line 25 is more likely to be printed than the inner portion of the easily bendable line 25. This is because it curls less and is easy to handle as a ticket piece. This is because, as shown in FIGS. 8(B) and 8(C), the outer portion of the easily bendable line 25 is peeled off by pulling out the folded first paper piece 2 and the second paper piece 3. , the peeling speed becomes slower than the inner portion of the easily bendable line 25, and the curl after peeling is considered to be less.

As described above, the release sheet 4 of the present embodiment reduces curling of the outer portion of the easily bendable line 25 after peeling, so that the release sheet 4 can be suitably used as a ticket piece such as the coupon ticket 32. The easily bendable line 25 can be used as a separating line for the coupon ticket 32.例文帳に追加Note that the ticket piece to be printed on the release sheet 4 is not limited to the coupon ticket 32, and various tickets may be used. It has also been proposed to print common ID information on the main sheet of the concealment postcard 1 and the ticket pieces of the release sheet 4, and to use the ticket pieces as stubs (copy) after posting the concealment postcard 1. be. Also, the outer portion of the easily bendable line 25 may not be a single ticket piece, but may be a ticket piece that can be separated into a plurality of pieces.

1 Concealment postcard 2 First piece of paper 3 Second piece of paper 4 Release sheet 5 Paper substrate 6 Folding line 10 Address writing part 11 Entry frame 12 Confidential information writing part 13 Bonding part 15 Non-confidential information writing part 17 Background pattern 18 Peeling layer 19 Resin Film 20 Adhesive layer 21 Non-adhesive part 22 Peeling layer 22 Peeling opening 23 Arrow 25 Easily bendable line 27 Instructions 28 Opening opening 29 Arrow 30 Half-cut line 32 Coupon

Claims (4)

a first piece of paper provided with a confidential information writing part on one side;
a second piece of paper coupled with the first piece of paper via a folding line and having an adhesive layer formed on the one side;
A release sheet detachably attached to the adhesive layer,
A cover-up postcard configured such that the second piece of paper can be adhered to the confidential information writing part of the first piece of paper in a removable manner by peeling off the release sheet and folding back along the folding line. There is
A cover-up postcard, wherein the release sheet is provided with a peeling opening on the inner side thereof, and is formed with an easily bendable line for facilitating bending of the release sheet. A background pattern is printed on the one side of the second piece of paper,
2. The concealable postcard according to claim 1, wherein lines are printed on the surface of the release sheet along part or all of the bendable lines. On the one side of the second piece of paper,
A transparent resin film is bonded to the second piece of paper so as to be re-peelable and difficult to re-stick,
The adhesive layer is formed on the resin film,
The resin film and the second paper strip are re-separated from the opening provided at the outer corner of the second paper strip, so that the bonded first paper strip and the second paper strip can be peeled off. and
3. The cover-up postcard according to claim 1, wherein the opening is formed with a half-cut line for cutting the outer corner of the second piece of paper and not cutting the resin film. The easily bendable line is a perforation,
4. Concealment according to any one of claims 1 to 3, wherein a detachable ticket piece is printed on the release sheet outside the bendable line along the bendable line. postcard.

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