Foldable information and communication device
A foldable information communication device with a single sheet of paper and pseudo-adhesive media simplifies folding and sealing, addressing complexity and cost issues in direct mail envelopes while preventing information leakage.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2026-03-25
AI Technical Summary
Existing direct mail envelopes require complex processes, risk information leakage, and have high manufacturing costs due to multiple paper components and adhesive issues.
A foldable information communication device using a single sheet of paper with multiple connected leaves, employing pseudo-adhesive media along fold lines to simplify folding and sealing, preventing accidental adhesion and information mixing.
Reduces manufacturing complexity, prevents information leakage, and lowers costs while maintaining high yield and recipient engagement.
Smart Images

Figure 2026053236000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a folded information communication medium used for direct mail and sealed letters. More specifically, it relates to a folded information communication medium obtained by folding a sheet of paper with a plurality of pieces connected, and adhesively bonding and sealing an edge that serves as an opening at one location so that it can be peeled off.
Background Art
[0002] In recent years, as the network environment has been improved and spread, the demand for printed materials using paper media has been decreasing. This also affects direct mail and the like, which have contributed to the expansion of sales channels for products, services, etc. In addition, combined with the increase in postal rates, the total number has been drastically decreasing.
[0003] Therefore, as a printing company mainly dealing with direct mail, items that provide many merits to the user side are required to face the above-mentioned network environment. For example, an envelope for direct mail of Utility Model Registration No. 3030660 has been devised.
Prior Art Documents
[0004]
Patent Documents
Patent Documents
Summary of the Invention
Problems to be Solved by the Invention
[0005] In the device of the cited reference, a paste margin coated with a peelable pressure-sensitive adhesive is provided only at the outer edge of the cover, and it becomes an envelope just by crimping this paste margin part. Although there is an advantage that it does not take time to seal and open, and the manufacturing cost can be kept low, there are many disadvantages as follows.
[0006] The aforementioned disadvantages include the need to create the outer paper A, which consists of the front cover 1, back cover 2, and folded edge 3, and the advertising paper 7 (one or more sheets) in separate processes, and the need for complex processes such as aligning the outer paper A and the advertising paper 7 along the folding line 5, and then gluing or stapling them together.
[0007] Furthermore, because it is composed of multiple separate forms, there is a possibility that someone else's personal information may be accidentally included, making it impossible to avoid the problem of information leakage.
[0008] Furthermore, an extremely difficult folding process is also required, which involves folding the advertising paper 7 in half, then folding the folded edge 3 back onto the advertising paper 7, and finally folding the back cover 2 onto the folded edge 3.
[0009] Furthermore, the peelable pressure-sensitive adhesive applied to the folded edge 3 can cause accidents such as adhesion to unintended areas, thus reducing the yield in the work process.
[0010] In view of the above problems, the present invention provides a foldable information communication device in which a single sheet of paper, with multiple connected leaf-shaped pieces, is folded in a known simple folding manner and the edges that serve as the opening are crimped, without the use of complex processing steps or materials that reduce yield, thereby greatly contributing to cost reduction, preventing accidents where other people's information may be mixed in, and further promoting increased purchasing intent by making a strong impression on the recipient of the contents written in the envelope. [Means for solving the problem]
[0011] To achieve the above objective, the foldable information communication body of the present invention is characterized in that it consists of at least four leaves connected laterally via fold lines, the widths of the four leaves being in the relationship first leaf ≈ second leaf ≥ third leaf > fourth leaf, and is folded so that the back sides of the third leaf and second leaf and the back side of the fourth leaf and first leaf face each other between the opposing surfaces of the first leaf and second leaf, and pseudo-adhesive media formed along the opening side edge of the back surface of the first leaf and the opening side edge of the surface of the third leaf are peelably bonded and sealed by the opposing edge portions.
[0012] Furthermore, in order to achieve the above objective, another embodiment of the foldable information communication body of the present invention is characterized in that it consists of a foldable information communication body paper in which one or more leaves, whose width is shorter than that of the first, second, and third leaves, are connected to the outside of the fourth leaf via fold lines.
[0013] The paper used in this invention can be any known sheet, such as high-quality paper, matte paper, coated paper, synthetic paper, nonwoven fabric, or resin film sheet. The paper used for the folded information and communication body may be printed on long sheets used for business form printing or web printing, or on sheet-fed sheets used for offset printing.
[0014] Furthermore, the pseudo-adhesive medium used to peel off and bond the opening edges is selected from media that have the property of peeling off and bonding only the portions where the forming surfaces of the pseudo-adhesive medium face each other. For example, pseudo-adhesive UV varnish or pseudo-adhesive laminate film can be suitably used as such.
[0015] The aforementioned pseudo-adhesive medium, once formed on the surface of the leaf intended for pseudo-adhesion, adheres only to the parts that face each other when folded. Therefore, it exhibits no adhesive properties at all during the pre-compression work processes, making it extremely convenient and contributing to improved work efficiency.
[0016] In the foldable information communication paper used in this invention, the widths of the first, second, and third leaves, which are connected laterally via a fold line, are approximately the same (differences are acceptable due to processing considerations or the formation of the opening), and the first and second leaves are folded so as to wrap around the third leaf. Then, the leaves from the fourth leaf onward, which are connected to the third leaf, are folded and stored between the opposing surfaces of the first and third leaves. Finally, all leaves from the third leaf onward are folded and stored between the folded opposing surfaces of the first and second leaves that are exposed. At this time, since the widths of the leaves from the fourth leaf onward are designed to be shorter than the widths of the first, second, and third leaves, the first and third leaves face each other directly at the opening edge, and the opening edge is peelably bonded and sealed by the opposing pseudo-adhesive medium formed in that area.
[0017] The pseudo-adhesive medium is formed along the opening-side edge of the first leaf and the opening-side edge of the surface of the third leaf facing the first leaf. However, since the fourth leaf and subsequent leaf pieces are folded and interposed between the opposing surfaces of the first and third leaf pieces, the formed pseudo-adhesive medium will have the protruding edges of the first leaf and the opening-side edges of the third leaf piece facing each other. If the pseudo-adhesive medium is formed with a wider width extending inward from the aforementioned edge, it will not exhibit adhesive properties even if pressure is applied, as it will be in direct contact with the folded leaf surface of the fourth leaf and subsequent leaf pieces on its own.
[0018] As previously described, the opposing region of the pseudo-adhesive medium on the opening edge can be adjusted by the width of the fourth and subsequent leaf fragments that are folded and enclosed. Therefore, even if the formation area of the pseudo-adhesive medium is assumed to be wider to ensure the reliability and safety of sealing, there is no problem of the peelable adhesive (sealed) area unintentionally expanding. Consequently, there is no need to be careful about processing precision, and the yield is also improved. [Effects of the Invention]
[0019] The folded information communication object of the present invention does not require complicated processes in manufacturing because it is configured to fold a single sheet of paper with multiple leaf pieces in a known simple folding form. Also, since the pseudo-adhesive medium does not exhibit adhesiveness in the manufacturing process before the crimping process, it is extremely convenient to handle and the yield is improved. Therefore, a significant reduction in manufacturing costs can be achieved. Furthermore, since it is composed of a single sheet of paper for the folded information communication object, personal information such as printing can be reliably entered and the information of predecessors is described. Therefore, information leakage accidents such as the mixing of other people's information that may occur in a sealed letter with a configuration combining multiple pieces of paper do not occur. Moreover, since it also conforms to forms such as e-mail, it is advantageous in terms of cost and has a form that attracts the interest of the recipient, so it also exhibits effects such as improving the purchasing desire.
Brief Description of the Drawings
[0020] [Figure 1] (A) is a common surface view of the folded information communication objects J1, J2, and J3 of the present invention, and (B) is a common back view. [Figure 2] It is a cross-sectional view taken along line I-I in FIG. 1(A). [Figure 3] (A) is a surface view of the paper S1 for the folded information communication object, (B) is a back view, and (C) is a cross-sectional view taken along line II-II in (A). [Figure 4] (A) is a plan view when the paper S1 for the folded information communication object is folded large in two from the fold line 6, and (B) is a cross-sectional view taken along line III-III in (A). [Figure 5] It is a perspective view showing the state when the folded information communication object J1 is opened. [Figure 6] (A) is a modified example of the folded information communication object J1, and shows a surface view of the paper S1 for the folded information communication object in which the pseudo-adhesive film sheet G is covered across the fold line 6, and (B) is a cross-sectional view of the completed folded information communication object J1. [Figure 7] It is a cross-sectional view taken along line I-I of the folded information communication object J2 in FIG. 1(A). [Figure 8] (A) is a surface view of the paper S2 for the folded information communication object, (B) is a back view, and (C) is a cross-sectional view taken along line IV-IV in (A). [Figure 9] A cross-sectional view showing the state where the fifth leaf piece 15 is folded from the folding line 19 in the direction of the arrow shown by the solid line in FIG. 8(C), (B) is a cross-sectional view obtained by folding (A) from the folding line 17 in the direction of the arrow, and (C) is a cross-sectional view obtained by further folding (B) from the overlapping folding lines 16 and 18 in the direction of the arrow. [Figure 10] It is a perspective view showing the state at the time of opening the folded information communication body J2. [Figure 11] It is a cross-sectional view taken along the line I-I of the folded information communication body J3 in FIG. 1(A). [Figure 12] A cross-sectional view showing the state where the fifth leaf piece 15 is folded from the folding line 19 in the direction of the arrow shown by the dashed line in FIG. 8(C), (B) is a cross-sectional view obtained by folding (A) from the folding line 17 in the direction of the arrow, and (C) is a cross-sectional view obtained by further folding (B) from the overlapping folding lines 16 and 18 in the direction of the arrow. [Figure 13] It is a perspective view showing the state at the time of opening the folded information communication body J3. [Figure 14] (A) and (B) are cross-sectional views showing modified examples of the opening.
BEST MODE FOR CARRYING OUT THE INVENTION
[0021] Hereinafter, the present invention will be described in an easy-to-understand manner along with the drawings. In the following examples, a pseudo-adhesive film sheet G is used as the pseudo-adhesive medium. The pseudo-adhesive film sheet G is obtained by subjecting one surface of a known film sheet such as OPP or PET to a pseudo-adhesive treatment and coating the surface of a printed matter where pseudo-adhesion is planned on the other surface via various known adhesives. Then, the surface of the printed matter where pseudo-adhesion is planned is folded, and when the pseudo-adhesive film sheets G are opposed to each other and subjected to a pressure or heat and pressure treatment, they are adhesively bonded so as to be peelable.
[0022] [Folded Information Communication Body J1] [[ID=�2]]The folded information communication body J1 of the present invention has front and back surfaces shown in FIGS. 1(A) and (B). FIGS. 1(A) and (B) are common drawings with the folded information communication bodies J2 and J3 described later. As shown in the cross-sectional view of Figure 2, the foldable information communication unit J1 is folded and stacked from top to bottom in the order of the first leaf 1, the fourth leaf 4, the third leaf 3, and the second leaf 2, along fold lines 5, 6, and 7. In this figure, the relationship between the widths of each leaf segment is as follows: first leaf segment 1 ≈ second leaf segment 2 ≥ third leaf segment 3 > fourth leaf segment 4, and a step of several millimeters in width is formed along the opening edge of the first leaf segment 1 and the third leaf segment 3.
[0023] A peelable pseudo-adhesive film sheet G is interposed between the opposing surfaces of the first leaf piece 1 and the fourth leaf piece 4, and between the opposing surfaces of the third leaf piece 3 and the fourth leaf piece 4. The pseudo-adhesive film sheets G are peelably adhered to each other at the protruding portions of the fourth leaf piece 4, where the first leaf piece 1 and the third leaf piece 3 protrude from the narrower fourth leaf piece 4, thereby sealing the opening edge.
[0024] As shown in Figure 5, the recipient of the foldable information communication body of the present invention can open it by using the step formed along the opening edge described above as the starting point for peeling, thereby unfolding each folded and overlapping leaf and viewing the information inside. Since the pseudo-adhesive film sheet G is transparent or semi-transparent, even if information is displayed in the covered area, it will not hinder reading.
[0025] [Manufacturing method for foldable information communication device J1] Next, the manufacturing method of the foldable information communication device J1 will be explained clearly with reference to the drawings. As shown in Figures 3(A) and (B), the foldable information communication paper S1 consists of four leaves, a first leaf 1, a second leaf 2, a third leaf 3, and a fourth leaf 4, connected laterally via fold lines 5, 6, and 7. Note that each of these fold lines may have known folding means such as fold lines or creases formed on them.
[0026] As shown in Figure (C), the pseudo-adhesive film sheet G is applied along the fold line 6 on the surface of the third leaf 3 and along the outer edge of the back surface of the first leaf 1. The foldable information and communication paper S1 may be printed on a long sheet used for business form printing, or on a single-fed sheet used for offset printing, and the figure shows the paper after it has been cut out individually from each sheet after going through the process of applying the pseudo-adhesive film sheet G.
[0027] The foldable information communication paper S1 with the above configuration is folded in half from the central fold line 6 so that the back surfaces of the first leaf 1 and the second leaf 2, and the third leaf 3 and the fourth leaf 4 face each other, as shown by the arrow in Figure 3(C), and is folded to the state shown in Figures 4(A) and (B). In this state, fold lines 5 and 7 overlap.
[0028] Furthermore, as indicated by the arrows in Figure (B), the third leaf 3 and the fourth leaf 4 are folded in half along the overlapping fold lines 5 and 7 so that their surfaces face each other, resulting in the state shown in Figure (C). This folding configuration is the same as that shown in Figure 2, but the pseudo-adhesive film sheets G facing each other at the opening edge are not yet adhered. By applying pressure or a heating and pressurizing process in this state, the pseudo-adhesive film sheets G facing each other at the opening edge are adhered to each other and sealed in the state shown in Figure 2.
[0029] In the configuration of the opening edge shown in Figures 2 and 4(C), a portion of the edge of the fourth leaf 4 is inserted between the opposing surfaces of the pseudo-adhesive film sheets G covering the first leaf 1 and the third leaf 3. In this portion, the pseudo-adhesive film sheets G do not face each other, so the pseudo-adhesive film sheet G facing the fourth leaf 4 does not adhere to it. Therefore, when forming the opening, if the edge of the fourth leaf 4 is folded and positioned at an arbitrary position away from the opening edge, there will be no effect even if the covering area of the pseudo-adhesive film sheet is accidentally shifted inward from the edge of the fourth leaf 4. Consequently, it becomes possible to manufacture a large number of products in a short time without requiring highly advanced and delicate techniques during manufacturing. The same applies to the following embodiments.
[0030] Furthermore, as shown in Figures 6(A) and (B), the pseudo-adhesive film sheet G covering the surface of the third leaf 3 may extend across the fold line 6 and into the second leaf 2. This reduces the precision constraints during processing (restrictions on the covering position along the fold line 6), thus contributing to improved yield.
[0031] [Foldable Information and Communication Device J2] The foldable information communication body J2 of the present invention has front and back surfaces as shown in Figures 1(A) and (B). Figures 1(A) and (B) are common drawings for the foldable information communication body J1 and the foldable information communication body J3 described later. As shown in the cross-sectional view of Figure 7, the foldable information communication unit J2 is folded and superimposed from top to bottom in the order of the first leaf 11, fifth leaf 15, fourth leaf 14, third leaf 13, and second leaf 12, along fold lines 16, 17, 18, and 19. In this figure, the relationship between the widths of each leaf segment is as follows: first leaf segment 11 ≈ second leaf segment 12 ≥ third leaf segment 13 > fourth leaf segment 14 ≈ fifth leaf segment 15, and a step of several millimeters in width is formed along the opening edge of the first leaf segment 11 and the third leaf segment 13.
[0032] A peelable pseudo-adhesive film sheet G is interposed between the opposing surfaces of the first leaf piece 11 and the fifth leaf piece 15, and the fourth leaf piece 14 and the third leaf piece 13. The pseudo-adhesive film sheets G are peelably adhered to each other at the protruding portions, as the first leaf piece 11 and the third leaf piece 13 protrude from the narrower fifth leaf piece 15 and the fourth leaf piece 14, thereby sealing the opening edge.
[0033] The recipient of the foldable information communication body of the present invention can open it by using the step formed along the opening edge described above as the starting point for peeling, thereby unfolding each folded and overlapping leaf as shown in Figure 10 and viewing the information inside.
[0034] [Manufacturing method for foldable information communication device J2] Next, the manufacturing method of the foldable information communication device J2 will be explained clearly with reference to the drawings. As shown in Figures 8(A) and (B), the foldable information communication paper S2 consists of five leaves, the first leaf 11, the second leaf 12, the third leaf 13, the fourth leaf 14, and the fifth leaf 15, which are connected laterally via fold lines 16, 17, 18, and 19. Note that each of these fold lines may have known folding means such as fold lines or creases formed on them.
[0035] As shown in Figure (C), a pseudo-adhesive film sheet G is formed along the fold line 17 on the surface of the third leaf 13 and along the outer edge of the back surface of the first leaf 11. The foldable information and communication paper S2 may be printed on a long sheet used for business form printing, etc., or on a single-fed sheet used for offset printing, etc. The figure shows the paper after it has been cut out individually from each sheet after going through the coating process of the pseudo-adhesive film sheet G.
[0036] The foldable information communication paper S2 with the above configuration is folded in half from the right-hand fold line 19 so that the back surfaces of the fourth leaf 14 and the fifth leaf 15 face each other, as shown by the solid arrow in Figure 8(C), resulting in the state shown in Figure 9(A).
[0037] Next, as indicated by the arrows in Figure 9(A), the first leaflet 11 and the back surfaces of the second leaflet 12, and the back surface of the third leaflet 13 and the front surface of the fifth leaflet 15 face each other, and the leaflet is folded in half along the central fold line 17 to the state shown in Figure 9(B).
[0038] Furthermore, as indicated by the arrows in Figure (B), the surface of the fourth leaf 14 and the surface of the third leaf 13 face each other, and the film is folded in half along the overlapping fold lines 16 and 18 to the state shown in Figure (C). This folding method is the same as the state shown in Figure 7, but the pseudo-adhesive film sheets G facing each other at the opening edge are not yet adhered. Then, through a pressurizing or heating-pressurizing process, the pseudo-adhesive film sheets G facing each other at the opening edge are adhered to each other and sealed to the state shown in Figure 7.
[0039] In the configuration of the opening edge shown in Figures 9(C) and 7, a portion of the edges of the fifth leaf 15 and the fourth leaf 14 are inserted between the opposing surfaces of the pseudo-adhesive film sheet G covering the first leaf 11 and the third leaf 13. In this portion, the pseudo-adhesive film sheets G do not face each other, so the fifth leaf 15 and the fourth leaf 14 do not adhere to the pseudo-adhesive film sheet G. Therefore, when forming the opening, if the fifth leaf 15 and the fourth leaf 14 are folded and positioned at an arbitrary position away from the opening edge, there is no effect even if the covering area of the pseudo-adhesive film sheet G expands inward beyond the edges of the fifth leaf 15 and the fourth leaf 14. Thus, it becomes possible to manufacture a large number of products in a short time without requiring highly advanced and delicate techniques.
[0040] [Foldable Information and Communication Device J3] The foldable information communication body J3 of the present invention has front and back surfaces as shown in Figures 1(A) and (B). Figures 1(A) and (B) are common drawings for the foldable information communication bodies J1 and J2. As shown in the cross-sectional view of Figure 11, the foldable information communication unit J3 is folded and stacked from top to bottom in the order of the first leaf 11, fourth leaf 14, fifth leaf 15, third leaf 13, and second leaf 12, along the fold lines 16, 17, 18, and 19. In this figure, the relationship between the widths of each leaf segment is as follows: first leaf segment 11 ≈ second leaf segment 12 ≥ third leaf segment 13 > fourth leaf segment 14 ≈ fifth leaf segment 15, and a step of several millimeters in width is formed along the opening edge of the first leaf segment 11 and the third leaf segment 13.
[0041] A pseudo-adhesive film sheet G is interposed between the opposing surfaces of the first leaf piece 11 and the fourth leaf piece 14, and the fifth leaf piece 15 and the third leaf piece 13. The pseudo-adhesive film sheets G are bonded together in a peelable manner at the portions directly facing each other at the protruding parts of the fourth leaf piece 14 and the fifth leaf piece 15, which are narrower in width, with the first leaf piece 11 and the third leaf piece 13 protruding from them.
[0042] The recipient of the foldable information communication body of the present invention can open it by using the step formed along the opening edge described above as the starting point for peeling, thereby unfolding each folded and overlapping leaf as shown in Figure 13 and viewing the information inside.
[0043] [Manufacturing method for foldable information communication device J3] Next, the manufacturing method of the foldable information communication device J3 will be explained clearly with reference to the drawings. In this embodiment, the foldable information communication body J3 uses the foldable information communication body paper S2 used in the manufacture of the previously described foldable information communication body J2.
[0044] In the folding information and communication device J2, the fifth leaf 15 of the paper shown in Figure 8 is folded downwards from the fold line 19 as indicated by the solid arrow, whereas in this folding information and communication device J3, it is folded upwards as indicated by the dashed arrow, resulting in the state shown in Figure 12(A).
[0045] Next, as indicated by the arrows in Figure 12(A), the back surfaces of the first leaflet 11 and the second leaflet 12, and the back surfaces of the third leaflet 13 and the fourth leaflet 14 face each other, and the leaflet is folded in half along the central fold line 17 to the state shown in Figure 12(B).
[0046] Furthermore, as indicated by the arrow in Figure (B), the film is folded in half along the overlapping fold lines 16 and 18 so that the back surface of the fifth leaf 15 and the front surface of the third leaf 13 face each other, resulting in the state shown in Figure (C). This folding method is the same as the state shown in Figure 11, but the pseudo-adhesive film sheets G facing each other at the opening edge are not yet adhered. Then, through a pressurizing or heating-pressurizing process, the pseudo-adhesive film sheets G facing each other at the opening edge are adhered to each other and sealed in the state shown in Figure 11.
[0047] In the configuration of the opening edge shown in Figures 12(C) and 11, parts of the edges of the fourth leaf 14 and fifth leaf 15 are inserted between the opposing surfaces of the pseudo-adhesive film sheet G covering the first leaf 11 and the third leaf 13. In this area, the pseudo-adhesive film sheets G do not face each other, so the fourth leaf 14 and fifth leaf 15 do not adhere to the pseudo-adhesive film sheet G. Therefore, when forming the opening, if the fourth leaf 14 and fifth leaf 15 are folded and positioned at an arbitrary position away from the opening edge, there is no effect even if the covering area of the pseudo-adhesive film sheet G expands inward beyond the edges of the fourth leaf 14 and fifth leaf 15. Thus, it becomes possible to manufacture a large number of products in a short time without requiring highly advanced and delicate techniques.
[0048] The present invention is not limited to the embodiments described above. For example, information communication material J1 uses information communication material paper with four connected leaves, and information communication materials J2 and J3 use information communication material paper with five connected leaves. However, it is also acceptable to connect multiple additional leaves to the outside of the fourth leaf, which is enclosed and does not become visible after folding. However, the width of these additional leaves must be narrower than the width of the first, second, and third leaves, and they are folded from the third leaf in a roll-fold, accordion-fold, or a combination thereof.
[0049] Furthermore, although the embodiment employs a stepped structure in which the third leaf portion protrudes more than the first leaf portion, the design may be changed to one in which the first leaf portion protrudes more than the third leaf portion, as shown in Figure 14(A).
[0050] Furthermore, instead of using the step as the starting point for opening, for example, as shown in Figure 14(B), the opening-side edges of the first and third leaf pieces can be aligned without forming a step, and the non-adhesive area H formed by covering the opening-side edge with the pseudo-adhesive film sheet G set back from the opening-side edge can be used as the starting point for opening, and the edges of the first and third leaf pieces can be pinched with the fingertips to open them.
[0051] Furthermore, while this embodiment uses a pseudo-adhesive film sheet that can be used in print lamination as a pseudo-adhesive medium, it goes without saying that other pseudo-adhesive UV varnishes and emulsion-type pseudo-adhesive adhesives (all of these pseudo-adhesive media exhibit pseudo-adhesion only when they are in contact with each other) can also be used. [Explanation of Symbols]
[0051] J1, J2, J3 Foldable Information and Communication Unit S1, S2 Foldable Information and Communication Paper G Simulated adhesive film sheet H Non-adhesive area 1, 2, 3, 4, 11, 12, 13, 14, 15 leaf pieces Fold lines 5, 6, 7, 16, 17, 18, 19
Claims
1. A foldable information communication body is characterized by the following: a foldable information communication body paper consisting of at least four leaves connected laterally via fold lines, wherein the widths of the four leaves are in the relationship first leaf ≈ second leaf ≥ third leaf > fourth leaf; the foldable information communication body paper is folded so that the back sides of the third leaf and second leaf and the back side of the fourth leaf and first leaf face each other between the opposing surfaces of the first leaf and second leaf, and the foldable information communication body is characterized by the fact that pseudo-adhesive media formed along the opening side edge of the back surface of the first leaf and the opening side edge of the surface of the third leaf are peelably bonded and sealed by the opposing edge portions.
2. A foldable information communication body characterized by being made of a foldable information communication body paper in which one or more leaf segments, whose width is shorter than that of the first, second, and third leaf segments, are connected to the outside of the fourth leaf segment via a fold line.
Citation Information
Patent Citations
Sealed letter for direct mail
JP3030660U