Return postcard and method for producing the same
The reply postcard design with six vertical fold lines and pseudo-adhesive film edges addresses production complexity and water vulnerability, enabling reliable information access with standard equipment and protection against water damage.
Patent Information
- Application Number
- JP2024019000
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-25
- Publication Date
- 2025-08-06
AI Technical Summary
Existing reply postcards require large-scale processing equipment and complex folding machines due to multiple connected leaves, are prone to information leakage, and are vulnerable to water damage, making them difficult to produce and use.
A reply postcard design with six vertical fold lines and a pseudo-adhesive film sheet covering the edges to protect against water damage, allowing use of common printers and ensuring reliable information access.
Enables production with standard printers, reduces folding complexity, prevents information leakage, and maintains readability even in wet conditions.
Smart Images
Figure 2025115339000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a reply postcard in which a plurality of leaflets are folded lengthwise and widthwise and any opposing surfaces are attached in a peelable or non-peelable manner, and to a method for producing the same. More specifically, the present invention relates to a reply postcard, which has been widely used in recent years, and which appears to be a normal reply postcard, but which has multiple leaflets that are folded and releasably stacked together, making it possible to convey more information in a concealed manner than before, and a method for manufacturing the same. [Background technology]
[0002] Among the peelable overlapping postcards that have recently become popular, the reply postcard is the one that can carry the most information. This consists of a reply postcard and an outgoing postcard connected together, with leaf edges attached to both sides of the outgoing postcard, making up four pieces, and information can be written on the front and back of each piece. An example of such a reply postcard is the one described in Japanese Patent Laid-Open Publication No. 11-286192. Prior Patent Documents Patent Documents
[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-286192 Summary of the Invention [Problem to be solved by the invention]
[0004] The aforementioned double postcards are made by folding a double postcard sheet with five postcard-sized leaves connected horizontally along a fold line, with the pseudo-adhesive surface releasably glued and the fully adhesive surface non-releasably glued. The completed double postcard can be sent to the recipient while concealing a large amount of information. However, double postcard sheets with multiple leaves connected horizontally require a wide printer or printing device. This requires the preparation of a wide range of large-scale processing equipment, making it uncommon and difficult for anyone to do anywhere.
[0005] Furthermore, as the number of leaf pieces increases, the folding pattern becomes more complex and the number of folds increases, requiring a large folding machine that can handle a variety of folding patterns and multiple folds, which is also uncommon.
[0006] Furthermore, a method has been disclosed for producing the desired postcard by dividing a postcard sheet into two and stacking them together, but by dividing the sheet into two, there is a risk of accidents where the sheet is mistakenly stacked with a sheet containing someone else's information, resulting in the leakage of information.
[0007] In addition, recent abnormal weather has resulted in frequent and unprecedented heavy rains, leading to numerous incidents in which stacked postcards become unable to be separated due to water damage in mailboxes or during mailing, and in which the information inside becomes illegible due to the destruction of the interface caused by water damage during separation.
[0008] In view of the above problems, the present invention aims to provide a reply postcard that can be printed using a general printer or printing device, even though it has multiple postcard-sized leaflets connected together, that can accommodate folding patterns with many leaflets and multiple folds, that is formed from a single sheet that does not cause accidents involving information leakage, that can be easily peeled off without blocking due to water exposure, and that allows internal information to be reliably confirmed. [Means for solving the problem]
[0009] In order to achieve the above object, the reply postcard of the present invention comprises a first unit sheet consisting of a first leaf piece, a second leaf piece, a third leaf piece, and a fourth leaf piece connected laterally via three vertical fold lines, and a second unit sheet consisting of a fifth leaf piece, a sixth leaf piece, a seventh leaf piece, and an eighth leaf piece connected laterally via three vertical fold lines, and the first leaf piece and the fifth leaf piece, the second leaf piece and the sixth leaf piece, the third leaf piece and the seventh leaf piece, and the fourth leaf piece and the eighth leaf piece are connected laterally via horizontal fold lines, respectively. In a reply postcard consisting of six vertical fold lines in total, in which reply postcard sheets arranged above and below to face each other are folded along the vertical and horizontal fold lines and any opposing surfaces are bonded in a peelable or non-peeling manner, the outgoing postcard and reply postcard are folded together so that the outgoing postcard is on top, and the fourth, third, second, sixth, seventh, and eighth leaf pieces are overlapped from the top to form the outgoing postcard, and the fifth and first leaf pieces are overlapped in this order to form the reply postcard. The fourth leaf piece and the third leaf piece, the seventh leaf piece and the eighth leaf piece, the second leaf piece and the sixth leaf piece, and the first leaf piece and the fifth leaf piece are non-removably bonded together, the non-removably bonded second leaf piece and the sixth leaf piece form the body of the outgoing postcard, the first leaf piece and the fifth leaf piece form the body of the reply postcard, and further, a pseudo-adhesive film sheet formed on the pseudo-adhesive intended surface of the third leaf piece and the seventh leaf piece which are removably bonded to both sides of the body of the outgoing postcard connects the third leaf piece and the fourth leaf piece. Because the pseudo-adhesive film sheet straddles the adjacent vertical fold line and the vertical fold line connecting the seventh and eighth leaf pieces, the exposed surfaces of the fourth and eighth leaf pieces are covered with the pseudo-adhesive film sheet after folding, and the exposed portions of the second and sixth leaf pieces are covered with the pseudo-adhesive film sheet at the step portions formed along the fold lines, so the pseudo-adhesive film sheet covering each leaf piece can be pinched and opened at the step portions.
[0010] In the case of the reply postcard, by making the vertical width of the second unit sheet wider than the vertical width of the first unit sheet, an exposed portion is created along the upper edge of the central leaflet, which is made up of the second and sixth leaflets of the reply postcard pasted together, that does not overlap with the third leaflet of the attached piece, but by writing words such as "Postal reply postcard" or "Return" on that exposed portion, it can be considered to be the reply postcard itself.
[0011] Also, in the case of the reply postcard, if the vertical width of the first unit sheet and the second unit sheet are the same, a hole (which can be a window frame or notch) can be made along the left edge of the third leaf so that the words "Postal Reply Postcard" or the like written on the second leaf can be seen through the hole.
[0012] Furthermore, the bottom edge of the bag, which has been folded along the horizontal crease and is now sealed, can be sent in that state and then cut off by the recipient to open it, or it can be cut off before shipping so that it is ready to be sent without requiring the recipient to do any work. This not only saves the recipient time but also prevents waste on site.
[0013] Furthermore, at the stepped portions where the leaf affixed to both sides of the body of the outgoing postcard begins to open, the end of the leaf that is to be pinched with the fingertips is covered with various film sheets having a strong coating. Therefore, even if the end of the leaf becomes wet, the various films can be pinched and peeled off without damaging the paper material, and once peeling begins, it can be guided by the strong film sheets and unfolded reliably to the end.
[0014] In order to achieve the above object, the method for manufacturing reciprocating postcards of the present invention includes a reciprocating postcard sheet feeding step of feeding out a reciprocating postcard sheet for manufacturing reciprocating postcards as set forth in claims 1 to 5; a film sheet covering step of covering the pseudo-adhesive surface of the reciprocating postcard sheet that has been fed out with a pseudo-adhesive film sheet and the completely-adhesive surface of the reciprocating postcard sheet that has been fed out with a completely-adhesive film sheet; a first folding step of folding the reciprocating postcard sheet covered with the film sheet from a vertical folding line into a substantially Z-shaped cross section so that the back surfaces of the third leaf piece and the second leaf piece face each other, the back surfaces of the seventh leaf piece and the sixth leaf piece face each other, and the surfaces of the third leaf piece, the fourth leaf piece, the seventh leaf piece and the eighth leaf piece face each other; a second folding step of folding the individually cut out reciprocating postcard sheets along a horizontal fold line so that the surfaces of the first and second unit sheets face each other, and folding the reciprocating postcard sheets so that the outgoing postcard and the reply postcard are connected via the fold line; a bonding step of applying pressure or heat and pressure to the reciprocating postcard sheets folded lengthwise and widthwise to bond the pseudo-bonded surfaces in a releasable manner and bond the fully bonded surfaces in an inreleasable manner; and a third folding step of folding the reciprocating postcard sheets that have undergone the bonding step along the fold line connecting the outgoing postcard and the reply postcard to form the final form of the reciprocating postcard.
[0015] In order to mail a postcard as a reply, the outgoing postcard and the reply postcard must be folded together to form the final form. This folding can be done in the final step after they have been joined together through a gluing process, or they can be folded into the final form just before the gluing process and then joined together through the gluing process.
[0016] The aforementioned reciprocating postcard sheets may be printed on long sheets or on individual sheets. In this case, long sheets have margins on both outer sides for marginal holes, and individual sheets have margins around the periphery of the reciprocating postcard sheets. There are no particular restrictions on the timing of trimming these margins in the flow direction (vertical direction). For example, they may be trimmed in advance during the unwinding process, or they may be trimmed upstream of the covering process. Alternatively, they may be trimmed downstream of the covering process, or they may be trimmed in stages upstream and downstream of the covering process. There are also no particular restrictions on the timing of trimming the horizontal margins, but they are preferably trimmed upstream of the second folding process.
[0017] As mentioned above, the lower edge of the envelope that has been folded along the horizontal fold line and bound together can be cut off by the recipient using a cutting tool such as scissors or a cutter, but if it is cut off in advance before mailing, it can be done with the outgoing postcard and reply postcard integrated in a flat state via the fold line after the gluing process, or it can be done in the final form in which the outgoing postcard and reply postcard are folded together.
[0018] The substrate used in the reply postcard sheet of the present invention can be ordinary paper (matt paper, coated paper, high-quality paper, etc.), as well as synthetic paper, nonwoven fabric, resin film sheet, etc. Pseudo-adhesion methods for releasably adhering opposing surfaces include a varnish-and-post-glue method in which pseudo-adhesive varnish or adhesive is applied after printing, a pre-glue method in which pseudo-adhesive pressure-sensitive glue is applied before printing, and a film method in which a pseudo-adhesive film sheet is coated, and among these, a film method with a tough coating can be preferably used. [Effects of the Invention]
[0019] According to the postcard of the present invention, the postcard sheet is not a sheet in which multiple leaves are connected horizontally but also in the vertical direction, so the width of the sheet can be narrowed and it can be used with commonly used printers and printing devices. Furthermore, by adding a horizontal folding process, the number of vertical folds can be reduced to half of the number of folds required after the finished product, making it possible to accommodate the folding patterns of reply postcards with a large number of leaflets and complex shapes. Furthermore, since it consists of a single sheet, it can correspond one-to-one with the information written, so there is no risk of serious accidents such as information leaks due to mistakes such as mixing in other people's information. In addition, the opening is protected and strengthened by a strong film sheet covering, so it can be opened reliably even if it gets soaked in a heavy rain, etc. Once peeling begins, the film sheet covering the opposite side guides the peeling to the end without damaging the surface of the base sheet. Therefore, the recipient can reliably view the information inside, which has a beautiful appearance after peeling. [Brief explanation of the drawings]
[0020] [Figure 1] (A) is a front view of the return postcard H with the return postcard V and reply postcard W laid out flat, and (B) is a back view. [Figure 2] 1A is a cross-sectional view taken along line II in FIG. 1A, and FIG. 1B is a cross-sectional view taken along line II-II. [Figure 3] 1 is a perspective view showing an embodiment of a reply postcard H of the present invention in a sealed state at a horizontal fold line 12 before opening. [Figure 4] 4 is a perspective view of a reply postcard H in a state where the fold line portion 12 of FIG. 3 has been cut away to open each peelable leaf. [Figure 5] 4 is a perspective view showing the state in which the leaf pieces 7 and 3 releasably adhered to both sides of the body of the outgoing postcard V in FIG. 3 have been peeled off. [Figure 6] 1A is a front view of a reply postcard sheet S used to manufacture a reply postcard H of the present invention, and FIG. 1B is a back view. [Figure 7] 1A is a front view showing the state in which the intended fully adhesive surface and intended pseudo-adhesive surface of a double postcard sheet S are covered with a fully adhesive film sheet K and a pseudo-adhesive film sheet G, respectively, and FIG. 1B is a back view. [Figure 8]7A is a cross-sectional view taken along line III-III in FIG. 7A, and FIG. 7B is a cross-sectional view taken along line IV-IV. [Figure 9] This is a plan view showing the state in which the back surface of the second leaf piece 2 (sixth leaf piece 6) in Figures 8(A) and (B) is folded along fold line 10 and superimposed on the back surface of the third leaf piece 3 (seventh leaf piece 7), and the front surface of the fourth leaf piece 4 (eighth leaf piece 8) is folded along fold line 11 and superimposed on the front surface of the third leaf piece 3 (seventh leaf piece 7) in a Z-shaped cross section. [Figure 10] 9A is a cross-sectional view taken along line VV in FIG. 9, and FIG. 9B is a cross-sectional view taken along line VI-VI. [Figure 11] (A) is a plan view of the outgoing postcard V and the reply postcard W folded along fold line 9 to form the final outgoing postcard H, and (B) is a cross-sectional view taken along line VII-VII in (A). [Figure 12] 1A is a plan view showing a state in which reply postcard sheets S are continuously printed on a long sheet S1, and FIG. 1B is a plan view showing a state in which they are printed on individual sheets S2. [Figure 13] FIG. 10 is a plan view showing a reply postcard H in a different form from the embodiment. [Figure 14] FIG. 10 is a cross-sectional view of the beginning of peeling in a mode different from the embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0021] The reply postcard H of the present invention and its manufacturing method will now be explained in an easy-to-understand manner with reference to the drawings. As shown in Figures 1(A) and (B), the reply postcard H of the present invention is formed by connecting an outgoing postcard V and a reply postcard W horizontally via a fold line 9. As will be described later, the final form of this reply postcard when mailed is as shown in Figures 11(A) and (B), in which the back of the address side of the outgoing postcard faces the address side of the reply postcard at the fold line 9.
[0022] As shown in Figure 2(B), the outgoing postcard V is formed by folding and stacking the fourth leaf piece 4, third leaf piece 3, second leaf piece 2, sixth leaf piece 6, seventh leaf piece 7, and eighth leaf piece 8 from the top in order along fold lines 11 and 10. The opposing surfaces of the fourth leaf piece 4 and the third leaf piece 3, and the seventh leaf piece 7 and the eighth leaf piece 8 are non-peelably bonded together via a complete adhesive film sheet K, and the opposing surfaces of the third leaf piece 3 and the second leaf piece 2, and the sixth leaf piece 6 and the seventh leaf piece 7 are releasably bonded together via a pseudo-adhesive film sheet G, which straddles fold line 11 and covers the visible surfaces of the fourth leaf piece 4 and the eighth leaf piece 8. Furthermore, the reply postcard W has the first leaf piece 1 and the fifth leaf piece 5 non-peelably bonded together via the complete adhesive film sheet K.
[0023] As will be described later, this reply postcard H is produced from a reply postcard sheet S in which a first unit sheet t1 with four faces in the horizontal direction and a second unit sheet t2 with the same four faces are joined vertically above and below via a horizontal fold line 12. The reply postcard sheet S is initially folded along vertical fold lines 10 and 11, and then folded in half along the horizontal fold line 12. As a result, as shown in Figures 2(A) and 3, the part along the horizontal fold line 12 is in a double-stitched state, and it is necessary to cut off the perforations 13 in order to separate the peelable leaves.
[0024] Next, the construction of the reply postcard H will be described in more detail while explaining the manufacturing method of the reply postcard H. 6(A) and 6(B) is used to manufacture the reciprocating postcard H of the present invention. The reciprocating postcard sheet S is configured as follows: a first unit sheet t1 consisting of a first leaf piece 1, a second leaf piece 2, a third leaf piece 3, and a fourth leaf piece 4 connected laterally via vertical fold lines 9, 10, and 11; and a second unit sheet t2 consisting of a fifth leaf piece 5, a sixth leaf piece 6, a seventh leaf piece 7, and an eighth leaf piece 8 connected laterally via vertical fold lines 9, 10, and 11 and having a vertical width wider than that of the first unit sheet t1. The first leaf piece 1 and the fifth leaf piece 5, the second leaf piece 2 and the sixth leaf piece 6, the third leaf piece 3 and the seventh leaf piece 7, and the fourth leaf piece 4 and the eighth leaf piece 8 are arranged above and below each other across a horizontal fold line 12, with the first leaf piece 1 and the fifth leaf piece 5, the second leaf piece 2 and the sixth leaf piece 6, the third leaf piece 3 and the seventh leaf piece 7, and the fourth leaf piece 4 and the eighth leaf piece 8 facing each other.
[0025] As shown in Figure 6(A), the front side of the third leaf piece 3 is the front side of the returned postcard, and information such as the address and name of the recipient of the returned postcard is written on it, and as shown in Figure 6(B), the back side of the fifth leaf piece 5 is the front side of the reply postcard, and information such as the address and name of the return recipient is written on it. As shown in Figure 6(A), the words "Postal Return Postcard" written at the bottom of the front side of the sixth leaf piece 6 eventually appear and can be seen from the outside, indicating that this is the main body of the returned postcard.
[0026] The reciprocating postcard sheets S having the above-described configuration may be printed continuously on a long sheet, or may be printed singly or multiple times on individual sheets. When reciprocating postcard sheets S are continuously printed on a long sheet S1, as shown in Figure 12(A), the vertical margins of the margins M formed on both sides must be trimmed. When reciprocating postcard sheets S are printed on individual sheets S2, as shown in Figure 12(B), the margins around the reciprocating postcard sheets S (vertical margin X, horizontal margin Y) must be trimmed. However, there are no particular limitations on the timing of trimming, and they may be trimmed at any point in the manufacturing process, or may be trimmed in stages between multiple processes.
[0027] The printed double postcard sheets S on long sheets or individual sheets are fed to downstream processes continuously or at intervals by various known feeding devices (feeding process), and are then sent to a covering process consisting of a pair of heat rollers or the like for pressure or heat / pressure treatment, which are arranged at the end of the feeding process.
[0028] In the covering process, although not shown in the drawings, for example, a fully adhesive film sheet K unwound from a film roll waiting above and a pseudo-adhesive film sheet G waiting below are unwound into a covering device consisting of a pair of heat rollers, and as shown by the dotted lines in Figures 7(A), (B) and 8, they are aligned with the fully adhesive and pseudo-adhesive surfaces on the front and back sides of the reciprocating postcard sheet S passing between the pair of heat rollers and firmly covered. (Covering Process)
[0029] The reciprocating postcard sheet S, which has been covered with various film sheets on each planned surface in the covering process, has at least one of the vertical (flow direction) margins cut away before being sent to the next first folding process. In the case of a long sheet S1, this is the marginal portion, and in the case of a single sheet S2, this is the vertical margin X. Here, the following explanation will be given starting from the state in which the reciprocating postcard sheet S has been cut out.
[0030] The individually cut out reply postcard sheet S is then folded along the vertical fold line 11 so that the front surface of the fourth leaf piece 4 (eighth leaf piece 8) faces the front surface of the third leaf piece 3 (seventh leaf piece 7), and also folded along the vertical fold line 10 so that the back surface of the second leaf piece 2 (sixth leaf piece 6) faces the back surface of the third leaf piece 3 (seventh leaf piece 7) and so that the cross section is Z-shaped, as shown in Figures 9 and 10(A) and (B). (First folding process)
[0031] Next, the sheet is folded along the horizontal fold line 12 to the state shown in Figures 1(A), (B) and 2(A), (B) so that the surfaces of the first leaf piece 1 and the fifth leaf piece 5 face each other, and the surfaces of the second leaf piece 2 and the sixth leaf piece 6 face each other. (Second folding step) In this state, the outgoing postcard V and the reply postcard W are connected horizontally via a vertical fold line 9 and laid out flat.
[0032] The folded reciprocating postcard sheet S is then passed through a heat and pressure treatment device, for example, in which multiple pairs of heat rollers are arranged, so that the opposing complete adhesive film sheets K are inseparably bonded to each other and the pseudo-adhesive film sheets G are releasably bonded to each other, thereby forming an integrated whole (bonding process). There are no restrictions on the structure of the heat and pressure treatment device, and other configurations are also acceptable, such as passing the film between heater panels to heat it, then applying pressure with a pressure roller installed at the outlet. Also, if the only bonding condition for various film sheets is pressure, bonding can be performed with a pressure roller.
[0033] As mentioned above, the combined reply postcard sheet S cannot be mailed as it is. Instead, the reply postcard W must be folded along the vertical fold line 9 so that the address side of the outgoing postcard V is exposed (third folding process), and the final form shown in Figures 11(A) and (B) can be mailed.
[0034] After the second folding step is completed, the outgoing postcard V and the reply postcard W may be folded in half and placed one on top of the other, and then passed through the bonding step in that state to complete the integration in the final form.
[0035] As shown in Figure 3, the recipient of the reply postcard H of the present invention can cut off the lower edge (the horizontal fold line 12 portion) that has been bound together in the second folding process in accordance with the wording such as "cut line" (not shown in the drawing) or the perforation markings, thereby releasing the lower edges of all the leaves as shown in Figure 4.Finally, as shown in Figure 5, by peeling off and unfolding the third leaf piece 3, the second leaf piece 2, the seventh leaf piece 7, and the sixth leaf piece 6, which are releasably adhered by the pseudo-adhesive film sheet G, the recipient can see the information hidden inside the reply postcard V through the transparent or translucent film sheet.
[0036] However, recent abnormal weather has led to frequent typhoons and heavy rains. It is not uncommon for mail delivered to mailboxes and other locations to become soaked. In such environments, peelable stacked postcards are made of paper that easily tears when wet. Trying to open them by pinching the edges of the postcards prevents them from opening at the tightly adhered adhesive interface, and instead destroys the paper, which has become weak due to water damage. Ultimately, the postcards become unopenable, making it impossible to read the information inside. The reply postcard H of the present invention is highly effective even in such environments.
[0037] As shown in the cross-sectional view of Figure 11(B), a pseudo-adhesive film sheet G (arrow Q in the figure) is exposed on the fold line 9 side of the third leaf piece 3 and seventh leaf piece 7, which are peelably attached to both sides of the outgoing postcard body (consisting of the second leaf piece 2 and the sixth leaf piece 6 pasted together). In addition, the pseudo-adhesive film sheet G (arrow P in the figure) is also coated on the exposed surfaces of the fourth leaf piece 4 and eighth leaf piece 8, which are folded back from the fold line 11 toward the exposed surfaces of the attached leaf pieces.
[0038] When opening an outgoing postcard V with the above-described structure, the step formed along the opening edge of the outgoing postcard body and each adhesive piece is the starting point, but the exposed portion of the opening edge is protected by coatings Q and P of the tough pseudo-adhesive film sheet G, which is resistant to water. Therefore, the recipient can easily begin peeling the two leaf pieces by pinching the coatings Q and P. The peeling results in a peel between the tough pseudo-adhesive film G protecting the two leaf pieces, so that stable peeling can be maintained until the end, as shown in Figure 5. After peeling and unfolding, the internal information protected by the pseudo-adhesive film sheet G can be reliably confirmed. This effect is also true when peeling and opening the sixth leaf piece 6 and the seventh leaf piece 7.
[0039] The present invention is not limited to the above-described embodiment. For example, in the embodiment, the recipient opens the sealed envelope by folding along the horizontal fold line 12 using a cutting tool such as scissors or a cutter, but by cutting the edge during the manufacturing process and then mailing the envelope, the recipient's effort can be reduced and waste can be prevented. There are no particular restrictions on the location of the cutting step, but it is preferable to perform it after the gluing step is completed. Also, if the lower edge is perforated for easy tearing, the recipient can conveniently tear it off without using a cutting tool.
[0040] Furthermore, in the embodiment, the vertical width of the first unit sheet t1 is made wider than the vertical width of the second unit sheet t2, and the design is such that the words "Postcard" written on the upper edge of the main body piece are exposed when folded along the horizontal fold line 12, but this configuration is not necessarily required. For example, as shown in Figure 13, the vertical widths of the first unit sheet t1 and the second unit sheet t2 may be made the same, a window hole 20 may be provided along the left edge of the third leaf piece 3 that is exposed after folding, and the words "Postcard" may be written in the portion of the second leaf piece 2 of the main body piece to which the third leaf piece 3 is attached that corresponds to the window hole 20, so that the words can be seen from the outside.
[0041] Furthermore, the opposing surfaces of the fourth leaf piece 4 (eighth leaf piece 8) folded back from the fold line 11 and the opposing third leaf piece 3 (seventh leaf piece 7) are non-peelably bonded together by a completely adhesive film sheet K, but the covering portion of the completely adhesive film sheet K may be covered by the third leaf piece 3 (seventh leaf piece 7) in a state that extends beyond the width of the fourth leaf piece 4 (eighth leaf piece 8).
[0042] In this embodiment, the narrow fourth leaf piece 4 and eighth leaf piece 8 are folded in a direction that exposes them, but the same action and effect as described can be obtained even if they are folded inward so that they do not expose them, as shown in Figure 14. [Explanation of symbols]
[0043] H. Return postcard V. Postcard W Reply Postcard K Fully adhesive film sheet G Pseudo adhesive film sheet S Postcard Sheet t1 First unit sheet t2 Second unit sheet S1 Long Sheet S2 Single Sheet Q, P coating M marginal part X Vertical margin Y horizontal margin 1, 2, 3, 4, 5, 6, 7, 8 leaf pieces 9, 10, 11 Vertical fold lines 12 Horizontal fold lines 13 Cut-out sewing machine 20 Window Hole
Claims
1. A reciprocal postcard consisting of a first unit sheet consisting of first, second, third and fourth leaf pieces connected laterally via three vertical fold lines, and a second unit sheet consisting of fifth, sixth, seventh and eighth leaf pieces connected laterally via three vertical fold lines, arranged above and below each other so that the first and fifth leaf pieces, the second and sixth leaf pieces, the third and seventh leaf pieces, and the fourth and eighth leaf pieces face each other via horizontal fold lines, respectively, is folded along the vertical and horizontal fold lines, and any opposing surfaces are adhered peelably or non-peelably to form a reciprocal postcard consisting of a total of six vertical fold lines, The outgoing postcard and the reply postcard are folded together with the outgoing postcard on top, and the fourth, third, second, sixth, seventh and eighth leaf pieces are stacked from top to bottom in this order to form the outgoing postcard, and the fifth and first leaf pieces are stacked in this order to form the reply postcard. Furthermore, the fourth leaf piece and the third leaf piece, the seventh leaf piece and the eighth leaf piece, the second leaf piece and the sixth leaf piece, and the first leaf piece and the fifth leaf piece are inseparably adhered together, and the second leaf piece and the sixth leaf piece that are inseparably adhered together form the body of the outgoing postcard, and the first leaf piece and the fifth leaf piece form the body of the reply postcard, Furthermore, the pseudo-adhesive film sheet formed on the pseudo-adhesive surfaces of the third and seventh leaf pieces, which are releasably adhered to both sides of the body of the outbound postcard, straddles the vertical fold line connecting the third and fourth leaf pieces and the vertical fold line connecting the seventh and eighth leaf pieces, so that after folding, the pseudo-adhesive film sheet covers the exposed surfaces of the fourth and eighth leaf pieces, and the pseudo-adhesive film sheet covers the exposed parts of the second and sixth leaf pieces at the step portions formed along the fold lines, so that the outbound postcard can be opened by pinching the pseudo-adhesive film sheet covering each leaf piece at the step portions.
2. 2. A reply postcard according to claim 1, wherein the vertical width of the second unit sheet is longer than the vertical width of the first unit sheet.
3. 2. A reply postcard according to claim 1, wherein a window hole is formed along the left edge of the third leaf.
4. 4. The reply postcard according to claim 1, wherein the bottom edge of the enclosed postcard, which has been folded along a horizontal fold line, is cut away and opened.
5. A postcard as described in claims 1 to 4, characterized in that the third and fourth leaf pieces, and the eighth and seventh leaf pieces are folded so that the back surfaces of the third and fourth leaf pieces and the eighth and seventh leaf pieces are peelably folded together, and the portion of the third leaf piece along the fold line with the fourth leaf piece and the fourth leaf piece are covered with a pseudo-adhesive film sheet to peelably adhere the back surface of the second leaf piece to the surface of the fourth leaf piece, and the portion of the seventh leaf piece along the fold line with the eighth leaf piece and the eighth leaf piece are covered with a pseudo-adhesive film sheet to peelably adhere the back surface of the sixth leaf piece to the surface of the eighth leaf piece.
6. a reciprocating postcard sheet feeding step for feeding a reciprocating postcard sheet for producing the reciprocating postcard according to any one of claims 1 to 5; a film sheet covering step of covering the pseudo-adhesive film sheet on the pseudo-adhesive surface of the reciprocal postcard sheet and the complete-adhesive film sheet on the complete-adhesive surface of the reciprocal postcard sheet; a first folding step of folding the film-covered receivable postcard sheet along the longitudinal fold line so that the back surfaces of the third and second leaf pieces face each other, the back surfaces of the seventh and sixth leaf pieces face each other, and the front surfaces of the third, fourth, seventh, and eighth leaf pieces face each other, forming a substantially Z-shaped cross section; a reciprocal postcard sheet cutting step of cutting out the reciprocal postcard sheet folded along the longitudinal fold lines by cutting in the transverse direction; a second folding step of folding the individually cut out reply postcard sheets along a horizontal fold line so that the surfaces of the first unit sheet and the second unit sheet face each other, and folding the outgoing postcard and the reply postcard in a state where they are connected via the fold line; a bonding step of applying pressure or heat and pressure treatment to the reciprocal postcard sheet folded lengthwise and widthwise to releasably bond the pseudo-bonding intended surface and non-releasably bond the complete-bonding intended surface; a third folding step of folding the correspondence postcard sheet that has been subjected to the bonding step along a fold line connecting the correspondence postcard and the reply postcard to form a final correspondence postcard; A method for manufacturing a return postcard, comprising:
7. A method for manufacturing reciprocal postcards, characterized in that, between the second folding step and the gluing step in the manufacturing method of claim 6, a reciprocal postcard sheet in which an outgoing postcard and a reply postcard are connected by a fold line is folded along the fold line to form the final reciprocal postcard, and then sent to the gluing step, thereby omitting the third folding step.
8. A method for manufacturing a postcard as described in either claim 4 or claim 5, characterized in that a process for cutting off the vertical margins of a postcard sheet printed on a long sheet or a single sheet is located upstream and / or downstream of the covering process.
9. The step of cutting off the bottom edge of the booklet folded from the horizontal fold line is performed downstream of the gluing step or downstream of the third folding step.