JP5809486B2 - Envelope paper - Google Patents

Description

  The present invention relates to an envelope paper used for producing an envelope in which contents are enclosed.

  In recent years, along with the expansion of the use of envelopes such as direct mail, various developments have been made on envelope paper used for producing envelopes by an automatic envelope production system (see Patent Document 1). The configuration of the envelope paper according to the prior art will be described as follows.

  The envelope paper according to the prior art is provided with a rectangular first constituent paper that becomes an envelope cover or backing paper, and the rectangular second constituent paper that becomes the envelope backing paper or cover is the first constituent paper. It is connected through one folding part. In addition, the second component paper is provided with a rectangular third component paper that becomes a middle folded paper of the envelope via the second folding unit. A rectangular fourth component paper, which becomes a middle origami paper, is continuously provided via a third folding portion.

  Both edges of the first constituent paper, the second constituent paper, the third constituent paper, and the fourth constituent paper in the paper short side direction can be joined by the adhesive force of the pre-applied crimping glue. Further, opening perforations are formed in parallel on the long side direction of the envelope paper from the first constituent paper to the fourth constituent paper at both edges in the paper short side direction.

Japanese Patent Laid-Open No. 11-105883

  By the way, recently, an attempt has been made to produce an envelope in which contents are enclosed by an automatic envelope production system. On the other hand, if the weight, thickness, etc. of the contents increase due to an increase in the number of the contents to be sealed, the number of folds, etc., the force that spreads the inside of the envelope due to the displacement of the contents relative to the envelope during mailing of the envelope Will work. For this reason, there is a possibility that the joint portion of the envelope paper constituting the envelope peels off or the opening perforation breaks, and the contents jump out of the envelope.

  Accordingly, the present invention provides an envelope paper having a novel configuration that can stabilize the mailing state of an envelope even when the content weight, thickness, etc. increase when producing an envelope enclosing the content. With the goal.

The first feature of the present invention (the invention described in claim 1) is that the envelope paper used for producing the envelope in which the contents are enclosed is n (n is an integer of 3 or more) rectangular constituent paper. Are arranged through (n-1) folding parts, the first constituent paper is on the cover or back of the envelope, the second constituent paper is on the back or cover of the envelope, 3 The nth and subsequent constituent papers are respectively the middle folded paper of the envelope, and both edges of the n constituent papers in the paper short side direction can be joined, respectively. A stopper perforation is formed at the tip of one of the edges in the paper short side direction, and the stopper perforation is located on the inner side in the paper short side of the joint and is in a superimposed state (folded state) ) N edges of the component paper in the paper short side direction are sandwiched (pressed). While disconnecting the perforations for the stopper, and summarized in that the folded paper short side outward of the stopper perforation was configured stopper piece for restricting the displacement of the contents for said envelope is formed To do.

The second feature of the present invention (the invention according to claim 2) is that, in the envelope paper used for producing the envelope in which the contents are enclosed, j (j is an integer of 4 or more) rectangular constituent paper Are arranged through (j−1) folding parts, the first component paper is on the cover or back of the envelope, the second component is on the back or cover of the envelope, 3 The second and subsequent constituent papers are respectively the middle folded paper of the envelope, and both edge portions of the j constituent papers in the paper short side direction can be joined respectively. A stopper slit or a stopper perforation is formed at the boundary between the (j-1) th constituent paper and the jth constituent paper at the edge, and the stopper slit or the stopper perforation located in the sheet short side inward of the joining portion, superimposed When the j the construction paper state (Oriawa allowed state) is held (pressed), while if the perforation stopper is present disconnects the perforations for the stop, for the stopper slit or the stopper The gist of the present invention is that the perforated paper sheet in the short side direction is bent to form a stopper piece that regulates the displacement of the contents with respect to the envelope.

In addition to the second feature, the third feature of the present invention (invention according to claim 3) is for another stopper at the tip of one of the edges in the paper short side direction of the jth component paper. A perforation is formed, and the other stopper perforation is positioned on the inner side in the paper short side with respect to the joint portion , and both edge portions in the paper short side direction of the j pieces of the configuration paper in a stacked state are sandwiched Then, while separating the other stopper perforation, the outer side in the short side direction of the other stopper perforation is bent to form another stopper piece for regulating the displacement of the contents with respect to the envelope. The gist is that it is configured.

  According to a fourth feature of the present invention (the invention according to claim 4), in addition to any one of the first feature to the third feature, it is opened at any edge in the paper short side direction. The gist of the invention is that the perforation for forming is formed in parallel to the long side direction of the paper, and the perforation for stopper is located on the inner side in the short side of the paper than the perforation for opening.

  According to the first aspect of the invention, the perforation for the stopper is located on the inner side in the paper short side than the joint portion, and the envelope paper is a paper short of n pieces of the constituent papers in a stacked state. When both edges in the side direction are sandwiched, the stopper piece is formed as described above, so that the envelope containing the contents is produced by folding (n-1) times. Even if the weight, thickness, etc. of the contents increase, it is possible to sufficiently suppress the force that pushes the envelope into the envelope during mailing of the envelope. Therefore, during the mailing of the envelope, it is possible to prevent the joint portion of the envelope paper constituting the envelope from peeling off, and to stabilize the mailing state of the envelope.

  According to the second aspect of the present invention, the stopper slit or the perforation for the stopper is located on the inner side in the paper short side than the joint portion, and the envelope paper has the j pieces of the overlapped state. Since the stopper piece is formed as described above when both edges of the constituent paper in the paper short side direction are sandwiched, the envelope containing the contents is folded by (j−1) times. When producing, even if the weight, thickness, etc. of the contents increase, it is possible to sufficiently suppress the force that pushes the envelope into the envelope during mailing of the envelope. Therefore, during the mailing of the envelope, it is possible to prevent the joint portion of the envelope paper constituting the envelope from peeling off, and to stabilize the mailing state of the envelope. In particular, the stopper slit or the stopper perforation is formed at the boundary between the (j−1) th constituent paper and the jth constituent paper at any edge in the paper short side direction. Therefore, it is possible to increase the rigidity of the stopper piece and to stabilize the mailing state of the envelope as compared with the case where it is formed at the tip of one of the edges in the paper short side direction of the j-th component paper. it can.

According to claim 3, the other perforation for stopper is located on the inner side in the paper short side direction than the joint portion , and both edges in the paper short side direction of the n pieces of the configuration paper in a superimposed state. When the portion is sandwiched, the other stopper piece is formed in addition to the stopper piece as described above, so that a force to push the inside of the envelope works during mailing of the envelope. It is possible to sufficiently and stably suppress the effect described in claim 2 further.

  According to the invention described in claim 4, since the perforation for stopper is located on the inner side in the short side of the paper from the perforation for opening, the perforation for opening is broken during mailing of the envelope. Can be prevented, and the mailing state of the envelope can be made more stable.

FIG. 1 is a view showing the back side of the envelope paper according to the first embodiment of the present invention. 2A is a view showing an envelope according to the first embodiment of the present invention, and FIG. 2B is a cross-sectional view taken along the line IIB-IIB in FIG. FIG. 3 is a diagram showing a state in which the envelope paper according to the first embodiment of the present invention is sealed. FIG. 4 is a conceptual diagram showing an automatic envelope production system according to an embodiment of the present invention. FIG. 5A is a schematic perspective view showing a sealing part in the sealing device according to the embodiment of the present invention, and FIG. 5B shows the sealing part in the sealing device according to the embodiment of the present invention. It is a typical front view. FIG. 6 is a view showing the back side of the envelope paper according to the second embodiment of the present invention. FIG. 7A is a view showing an envelope according to the second embodiment of the present invention, and FIG. 7B is a cross-sectional view taken along line VIIB-VIIB in FIG. 7A. FIG. 8 is a diagram illustrating a state in which the envelope paper according to the second embodiment of the present invention is sealed.

  Hereinafter, with reference to FIGS. 1 to 8, an automatic envelope production system according to an embodiment of the present invention, an envelope paper according to a first embodiment of the present invention, an envelope paper according to a second embodiment of the present invention, and the like. A description will be made sequentially.

(Envelope automatic production system according to an embodiment of the present invention)
An automatic envelope production system according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5A and 5B. In the description, “downstream” means downstream from the conveyance direction CD of the envelope paper P1 and contents paper P2, etc., and “upstream” means conveyance of the envelope paper P1 and contents paper P2 etc. This means upstream from the direction CD. In FIG. 4, “L” indicates the left direction, and “R” indicates the right direction.

  As shown in FIG. 4, the envelope automatic production system 1 according to the embodiment of the present invention performs printing on an envelope sheet P1 (or P1A) and a plurality of content sheets P2, and a plurality of printed content sheets. The content B is formed from P2, and the envelope M (or MA) which sealed the content B from the printed envelope paper P1 is produced. In other words, the automatic envelope production system 1 includes an image forming apparatus 3 that performs printing on the envelope paper P1 and a plurality of content sheets P2, and an encapsulating sealing device 5 that is provided at a position adjacent to the image forming apparatus 3. It consists of a combination of Here, the sealing device 5 forms the content B from a plurality of printed content papers P2, and seals the printed envelope paper P1 folded in a state where the content B is sealed. is there.

  The image forming apparatus 3 in the envelope automatic production system 1 includes an image forming apparatus casing 7 (hereinafter, referred to as an apparatus casing 7 as appropriate), and print data (envelope printing data and An ink jet type printing unit 9 that performs printing on the envelope paper P1 and the content paper P2 based on the content print data) is provided. The printing unit 9 includes a plurality of line-type ink heads (not shown) that eject ink of each color of black, cyan, magenta, and yellow.

  An envelope paper feeding unit 11 that feeds the envelope paper P1 to the printing unit 9 side is provided on the side of the device housing 7. The envelope paper feeding unit 11 and the printing unit 9 in the device housing 7 are provided. Is provided with an envelope paper feed path 13 for conveying the envelope paper P1 to the printing unit 9 side. A content sheet feeding unit 15 that sequentially feeds a plurality of content sheets P2 to the printing unit 9 side is provided below the printing unit 9 in the apparatus casing 7. 7 is provided between the content paper feeding section 15 and the printing section 9 in order to transport the content paper P2 to the printing section 9 side. A communication conveyance path 19 for conveying the printed envelope paper P1 and the content paper P2 sent out from the printing unit 9 to the encapsulating device 5 side (right direction) is provided in the right part of the apparatus housing 7. Is provided.

  The sealed sealing device 5 in the automatic envelope production system 1 includes a sealed sealing device housing 21 (hereinafter referred to as a device housing 21 as appropriate), and a communication conveyance path 19 (image formation) is provided in the device housing 21. An introduction transport path 23 is provided for introducing and transporting the printed envelope paper P1 and content paper P2 sent from the apparatus 3). Further, in the apparatus housing 21, a first sealed sealing transport path 25 for transporting the printed envelope paper P1 is provided, and an upstream end portion (base end section) of the first sealed sealing transport path 25 is provided. ) Can be connected to and disconnected from the downstream end (tip) of the introduction conveyance path 23 by the operation of a sealing flapper (not shown). Further, a second encapsulated conveyance path 27 for conveying the printed content paper P2 and the like (including the content B) is provided below the first encapsulated seal conveyance path 25 in the apparatus housing 21. Thus, the upstream end portion (base end portion) of the second encapsulating and sealing conveyance path 27 can be connected to and disconnected from the downstream end portion of the introduction and conveying path 23 by the operation of the sealing and sealing flapper. The downstream end side of the first encapsulated sealed conveyance path 25 and the downstream end side of the second encapsulated sealed transport path 27 are merged, and the first enclosed sealed transport path 25 and the second sealed sealed conveyance within the apparatus housing 21 are joined. On the downstream side (exit side) of the merging portion of the path 27, a third enclosure for conveying an envelope M in which the contents B are enclosed (including envelope paper P1 folded so as to enclose the contents B). A sealed conveyance path 29 is provided.

  An alignment unit 31 for accumulating and aligning a plurality of content sheets P2 is provided in the middle of the second encapsulating and conveying path 27 in the apparatus housing 21, and the alignment unit 31 includes a plurality of contents. An alignment tray (not shown) for collecting the paper sheets P2 is provided. In addition, a content forming unit 33 is provided in the middle of the second sealed sealing conveyance path 27 in the apparatus housing 21 and on the downstream side (exit side) of the aligning unit 31, and the content forming unit 33. Folds the aligned content sheet P2 fed from the alignment unit 31 to form the content B, and includes a plurality of content forming folding rollers (not shown).

  An enclosure 35 is provided at the junction of the first enclosure sealing conveyance path 25 and the second enclosure sealing conveyance path 27 in the apparatus housing 21, and the enclosure 35 receives the printed envelope paper P 1. The content B sent out from the content formation part 33 is enclosed in envelope paper P1, folding. The enclosing unit 35 includes a plurality of enclosing folding rollers (not shown) and a water supply device (not shown) capable of supplying water.

  A sealing portion 37 is provided in the middle of the third sealed sealing conveyance path 29 in the apparatus housing 21, and the sealing portion 37 is fed from the sealing portion 35 and is folded and envelope paper P 1. The envelope paper P1 is sealed by sandwiching both edges in the short side direction SD.

  Specifically, as shown in FIGS. 5A and 5B, a lower roller support member 39 is provided in the apparatus housing 21 so as to be swingable around its swing axis 39s. In addition, a pair of lower sealing rollers (under the pressure bonding) that support both edges in the paper short side direction SD (see FIG. 1) of the envelope paper P1 in a folded state are provided at the tip of the lower roller support member 39. Roller) 41 is rotatably provided, and the pair of lower sealing rollers 41 are separated in the transport width direction WD of the third sealed sealing transport path 29. Similarly, an upper roller support member 43 is provided in the apparatus housing 21 so as to be swingable around its swing axis 43s. In addition, a pair of edge portions in the paper short side direction SD of the envelope paper P1 in a folded state are clamped (pressed) in cooperation with the pair of lower sealing rollers 41 at the front end portion of the upper roller support member 43. A sealing upper roller (pressure-bonding upper roller) 45 is rotatably provided, and the pair of sealing upper rollers 45 are separated from each other in the transport width direction WD of the third sealed sealing transport path 29. The pair of sealing lower rollers 41 and the pair of sealing upper rollers 45 can be rotated by driving an appropriate sealing motor (not shown), and are sandwiched (pressed) by appropriate urging forces of springs 47 and 49. Direction).

  As shown in FIG. 4, an envelope receiving portion 51 is provided on the side of the apparatus housing 21, and the envelope receiving portion 51 receives an envelope M (or MA) sent out from the sealing portion 37. It is. Further, the envelope receiving unit 51 includes a receiving tray (not shown) or a receiving box (not shown) for storing the envelope M.

(First embodiment)
An envelope sheet according to a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2 (a) and 2 (b), the envelope paper P1 according to the first embodiment of the present invention is used to produce an envelope M in which the contents B are enclosed by the automatic envelope production system 1 described above. And includes a rectangular first constituent paper (first constituent paper) 53 which is the backing paper Ma of the envelope M. Further, a rectangular second component paper (second component paper) 55 serving as a cover sheet Mb of the envelope M is connected to the first component paper 53 via a first folding portion 57. Furthermore, a rectangular third component paper (third component paper) 59 that becomes the middle origami Mc of the envelope M is connected to the second component paper 55 via the second folding unit 61. The paper 59 can be held so as to sandwich the content B in cooperation with the second component paper 55. Instead of the first component paper 53 becoming the backing paper Ma of the envelope M and the second component paper 55 becoming the cover Mb of the envelope M, the first component paper 53 becomes the cover Mb of the envelope M and the second component The paper 55 may be the backing paper Ma of the envelope M.

  Documents, graphics, and the like are printed on each surface of the first component paper 53, the second component paper 55, and the third component paper 59 by the inkjet printing unit 9. Further, the first folding portion 57 and the second folding portion 61 are folded by the plurality of sealing folding rollers in the sealing portion 35 so that the envelope paper P1 is folded, in other words, the first component paper. 53, the second component paper 55, and the third component paper 59 are overlapped (folded).

  Both edges in the paper short side direction SD of the first component paper 53, the second component paper 55, and the third component paper 59 can be joined by the adhesive force of a pre-applied pressure-sensitive adhesive (pressure sensitive adhesive) 63, respectively. is there. Further, water paste 65 is applied in the vicinity of the folding portion 61 on the surface of the third component paper 59, and the water paste 65 is supplied to the water feeder in the enclosing portion 35 during the folding of the envelope paper P1 by the enclosing portion 35. It is designed to exhibit adhesive strength when supplied with water.

  Opening perforations 67 are formed on both edges in the paper short side direction SD of the envelope paper P1 from the first constituent paper 53 to the third constituent paper 59 in parallel with the paper long side direction TD. The perforation 67 is located on the inner side in the paper short side direction SD from the application portion of the pressure bonding paste 63. It should be noted that the opening perforations 67 are formed only on one edge of the envelope paper P1 in the paper short side direction instead of being formed on both edges in the paper short side direction SD of the envelope paper P1. It may be formed.

  Stopper perforations 69 are formed in parallel to the paper long side direction TD at the tips of both edges of the third component paper 59 in the paper short side direction SD. It is located inside the paper short side direction SD from the application portion of the pressure-bonding glue 63 that is the joint portion of the envelope paper P1 and the perforation 67 for opening. Instead of forming the perforations 69 for stopper at the ends of both edges of the third constituent paper 59 in the paper short side direction SD, respectively, one edge of the third constituent paper 59 in the paper short side direction SD is provided. A stopper perforation 69 may be formed at the tip.

As shown in FIG. 3, the envelope paper P <b> 1 is in the paper short side direction SD of the first constituent paper 53, the second constituent paper 55, and the third constituent paper 59 in an overlapped state (the folded state). When both edge portions are clamped (pressed) by the cooperation of the pair of lower sealing rollers 41 and the pair of upper sealing rollers 45 in the sealing portion 37, the pair of stopper perforations 69 are separated while the pair of stopper perforations 69 are separated. The outer side of the sheet short side SD is bent, and a pair of stopper pieces 71 (see FIGS. 2A and 2B) are formed accordingly. Here, the pair of stopper pieces 71 regulate the positional deviation of the contents B in the envelope longitudinal direction LD with respect to the envelope M.

  Each stopper perforation 69 is set to have a length of 5 mm or more. The reason for this is that if it is set to be less than 5 mm, it is difficult to sufficiently restrict the displacement of the contents B in the envelope longitudinal direction LD with respect to the envelope M by the stopper piece 71.

  Then, the effect | action and effect of 1st Embodiment of this invention are demonstrated.

  Each stopper perforation 69 is positioned on the inner side in the paper short side direction SD with respect to the application portion of the pressure-bonding glue 63 and the opening perforation 67, and the envelope paper P1 is a paper short such as the first constituent paper 73 in an overlapped state. Since the pair of stopper pieces 71 are formed as described above when both edges in the side direction SD are sandwiched, the envelope M is being mailed even if the weight, thickness, etc. of the contents B increase. Moreover, it can fully suppress that the force which spreads inside the envelope M acts.

  Further, since the stopper perforation 69 is formed at the leading ends of both edges in the paper short side direction SD of the third component paper 59 instead of the stopper slit, the image forming apparatus 3 prints on the envelope paper P1. When performing, the contact of the envelope paper P1 with the ink head in the printing unit 9 and paper folding jam can be avoided.

  Therefore, according to the first embodiment of the present invention, when the envelope M enclosing the contents B is produced by tri-folding (two folds), even if the weight, thickness, etc. of the contents B increase, the envelope Since it is possible to sufficiently suppress the force that pushes the inside of the envelope M during mailing of M, the joint portion of the envelope paper P1 constituting the envelope M (application portion of the pressure bonding paste 63) during mailing of the envelope M Can be prevented from being peeled off or the opening perforation 67 can be torn, and the mailing state of the envelope M can be stabilized.

  In particular, since the length of the perforation 69 for the stopper is set to 5 mm or more, the positional deviation of the content B with respect to the envelope M is sufficiently restricted by the stopper piece 71, and the mailing state of the envelope M is further stabilized. Can do.

  Further, when printing on the envelope paper P1 by the image forming apparatus 3, it is possible to avoid the contact of the envelope paper P1 with the ink head in the printing unit 9 and the paper folding jam, so that the production of the envelope M is interrupted as much as possible. It is possible to improve the productivity (productivity) of M.

(Second Embodiment)
An envelope sheet according to a second embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 6 and 7 (a) and 7 (b), the envelope paper P1A according to the second embodiment of the present invention is for producing an envelope MA in which the contents B are enclosed by the automatic envelope production system 1 described above. And includes a rectangular first constituent paper (first constituent paper) 73 which is the backing paper MAa of the envelope MA. In addition, a rectangular second constituent paper (second constituent paper) 75 serving as a cover MAb of the envelope MA is continuously provided on the first constituent paper 73 via a first folding portion 77. Furthermore, a rectangular third constituent paper (third constituent paper) 79 that becomes the middle origami MAc of the envelope MA is continuously provided on the second constituent paper 75 via the second folding portion 81. The constituent paper 79 is connected with a rectangular fourth constituent paper (fourth constituent paper) 83 that becomes another middle folded paper MAd of the envelope MA via a third folding portion 85, and this fourth constituent paper. 83 can be held so as to sandwich the content B in cooperation with the second component paper 75. Instead of the first constituent paper 73 becoming the back cover MAa of the envelope MA and the second constituent paper 75 becoming the cover MAb of the envelope MA, the first constituent paper 73 becomes the cover MAb of the envelope MA and the second constituent The paper 75 may be the backing paper MAa of the envelope MA.

  Documents, graphics, and the like are printed on each surface of the first component paper 73, the second component paper 75, the third component paper 79, and the fourth component paper 83 by the ink jet printing unit 9. In addition, the first folding portion 77, the second folding portion 81, and the third folding portion 85 are folded by a plurality of sealing folding rollers in the sealing portion 35, whereby the envelope paper P1 is folded. In this case, the first component paper 73, the second component paper 75, the third component paper 79, and the fourth component paper 83 are overlapped (folded).

  Both edges of the first constituent paper 73, the second constituent paper 75, the third constituent paper 79, and the fourth constituent paper 83 in the paper short side direction SD are bonded with a pre-applied pressure-sensitive adhesive (pressure-sensitive adhesive) 87. Each can be joined by force. Further, water paste 89 is applied in the vicinity of the folding portion 81 on the surface of the third component paper 79, and the water glue 89 is supplied to the water feeder in the enclosing portion 35 during the folding of the envelope paper P1A by the enclosing portion 35. It is designed to exhibit adhesive strength when supplied with water.

  Opening perforations 91 are formed on both edges in the paper short side direction SD of the envelope paper P1A from the first constituent paper 73 to the fourth constituent paper 83 in parallel with the paper long side direction TD. The perforation 91 is located inside the paper short side direction SD from the application portion of the pressure bonding glue 87. It should be noted that the opening perforations 91 are formed only at one edge of the envelope paper P1A in the paper short side direction instead of being formed at both edges in the paper short side direction SD of the envelope paper P1A. It does not matter if it is made.

  Stopper slits 93 are provided in parallel to the long side direction TD of the envelope paper P1A at the boundary part (near the boundary) between the third constituent paper 79 and the fourth constituent paper 83 at both edges in the paper short side direction SD. Each stopper slit 93 is formed and is located on the inner side in the paper short side direction SD from the application portion of the pressure bonding glue 87 and the opening perforation 91. Instead of forming slits for stoppers 93 at the boundary between the third component paper 79 and the fourth component paper 83 at both edges in the paper short side direction SD of the envelope paper P1A, the paper short of the envelope paper P1A is used. The stopper slit 93 may be formed only at the boundary between the third component paper 79 and the fourth component paper 83 at one edge of the side direction SD.

Then, as shown in FIG. 8, the envelope paper P1A is in the paper short side direction SD of the first constituent paper 73, the second constituent paper 75, the third constituent paper 79, and the fourth constituent paper 83 in an overlapped state. When both edge portions are sandwiched by the cooperation of the pair of lower sealing rollers 41 and the pair of upper sealing rollers 45 in the sealing portion 37, the outer side of the pair of stopper slits 93 in the paper short side direction SD is bent, and accordingly, A pair of stopper pieces 95 (see FIGS. 7A and 7B) are formed. Here, the pair of stopper pieces 95 regulates the positional deviation of the content B in the envelope longitudinal direction LD with respect to the envelope MA.

  Instead of forming a stopper slit 93 at the boundary between the third constituent paper 79 and the fourth constituent paper 83 at the edge in the paper short side direction SD of the envelope paper P1A, the paper short side direction of the envelope paper P1A A stopper perforation may be formed at the boundary between the third component paper 79 and the fourth component paper 83 at the edge of the SD.

Stopper perforations 97 are formed in parallel to the paper long side direction TD at the leading ends of both edges of the fourth constituent paper 83 in the paper short side direction SD. It is located on the inner side in the paper short side direction SD from the application portion of the pressure-bonding glue 87 that is the joint portion of the envelope paper P1A and the perforation 91 for opening. Instead of forming the perforation 97 for the stopper at each edge of the fourth constituent paper 83 in the paper short side direction SD, the tip of one edge of the paper short side direction SD of the fourth constituent paper 83 is formed. Only the stopper perforations 97 may be formed.

Then, as shown in FIG. 8, the envelope paper P1A is composed of the first constituent paper 73, the second constituent paper 75, the third constituent paper 79, and the fourth constituent paper 83 in a superimposed state (folded state). When both edges of the sheet short side direction SD is clamped (pressed) by the cooperation of the pair of sealing under roller 41 and a pair of sealing on the roller 45 in the sealing portion 37, in addition to the pair of stopper pieces 95 are formed The outer sides of the pair of stopper perforations 97 in the paper width direction SD are bent while separating the pair of stopper perforations 97 , and accordingly, a pair of strip-shaped stopper pieces (another stopper piece) 99 (FIG. 7). (B)) is formed. Here, like the pair of strip-shaped stopper pieces 95, the pair of stopper pieces 99 regulates the displacement of the contents B in the envelope longitudinal direction LD with respect to the envelope MA.

  The length of each stopper perforation 97 is set to 5 mm or more for the same reason as that for setting the length of each stopper perforation 69.

  Then, the effect | action and effect of 2nd Embodiment of this invention are demonstrated.

  Each stopper slit 93 and each stopper perforation 97 is positioned on the inner side in the paper short side direction SD from the application portion of the pressure bonding glue 87 and the opening perforation 91, and the envelope paper P1A is a first configuration in a superposed state. Since the pair of stopper pieces 95 and the pair of stopper pieces 99 are formed as described above when both edge portions in the paper short side direction SD of the paper 73 or the like are sandwiched, the weight and thickness of the contents B are formed. Even if it increases, it can suppress more fully that the force which pushes in the inside of envelope MA acts during mailing of envelope MA.

  Since the stopper perforations 97 are not formed at the leading ends of both edges in the paper short-side direction SD of the fourth component paper 83, instead of the stopper slits, the image forming apparatus 3 in the automatic envelope manufacturing system 1 uses them. When printing on the envelope paper P1A, it is possible to avoid contact of the envelope paper P1A with the ink head in the printing unit 9 and paper folding jam.

  Therefore, according to the second embodiment of the present invention, when the envelope MA enclosing the content B is produced by four-folding (three-folding), even if the weight, thickness, etc. of the content B increase, the envelope During the mailing of the MA, it is possible to more sufficiently suppress the force that spreads inside the envelope MA. Therefore, during the mailing of the envelope MA, the joint portion of the envelope paper P1A constituting the envelope MA (the application portion of the pressure bonding glue 87) ) Can be peeled off or the perforation 91 for opening can be prevented from tearing, and the mailing state of the envelope MA can be stabilized.

  In particular, since the length of the perforation 97 for the stopper is set to 5 mm or more, the positional deviation of the content B with respect to the envelope MA is sufficiently restricted by the stopper piece 99, and the mailing state of the envelope MA is further stabilized. Can do. Further, each stopper slit 93 is formed at the boundary between the third constituent paper 79 and the fourth constituent paper 83 at the edge of the envelope paper P1A in the paper short side direction SD. Compared with the case where it is formed at the tip of the edge in the short side direction SD, the rigidity of the pair of stopper pieces 95 can be increased, and the mailed state of the envelope MA can be further stabilized.

  Further, when printing is performed on the envelope paper P1A by the image forming apparatus 3, it is possible to avoid the contact of the envelope paper P1A with the ink head and the paper folding jam in the printing unit 9, so that the envelope MA is not interrupted as much as possible and the envelope It is possible to improve the productivity (productivity) of MA.

  The present invention is not limited to the description of the above-described embodiment. For example, a stopper formed at the boundary between the third constituent paper 79 and the fourth constituent paper 83 at the edge in the paper short side direction SD. Various aspects can be made by making appropriate changes such as omitting any one of the slits 93 and the stopper perforations 97 formed at the tips of the edges of the fourth constituent paper 83 in the paper short side direction SD. Can be implemented. Further, the scope of rights encompassed by the present invention is not limited to the above-described embodiment.

P1 envelope paper 53 first component paper 55 second component paper 57 folding part 59 third component paper 61 folding part 63 crimping glue 65 water glue 67 perforation for opening 69 perforation for stopper 71 stopper piece P1A envelope paper 73 first composition Paper 75 Second constituent paper 77 Folding part 79 Third constituent paper 81 Folding part 83 Fourth constituent paper 85 Folding part 87 Crimping glue 89 Water glue 91 Opening perforation 93 Stopper slit 95 Stopper piece 97 Stopper perforation 99 Stopper Fragment

Claims (4)

In envelope paper used to produce an envelope enclosing the contents,
n (n is an integer greater than or equal to 3) rectangular constituent papers are arranged in series via (n-1) folding parts, and the first constituent paper is the second cover paper or the back paper of the envelope. And the third and subsequent constituent papers are half-folded papers of the envelope, and both edges of the n constituent papers in the paper short side direction. Can be joined,
A stopper perforation is formed at the tip of one of the edges in the paper short side direction of the nth component paper, and the stopper perforation is located on the inner side in the paper short side than the joint ,
When both edges in the paper short side direction of the n pieces of the constituent papers in the overlapped state are clamped, the outer side in the paper short side of the stopper perforation is bent while cutting the perforation for the stopper. The envelope paper is characterized in that a stopper piece for restricting the displacement of the contents with respect to the envelope is formed. In envelope paper used to produce an envelope enclosing the contents,
j (where j is an integer of 4 or more) rectangular constituent papers are arranged in series via (j−1) folding parts, and the first constituent paper is the second cover paper or the back paper of the envelope. And the third and subsequent constituent papers are half-folded papers of the envelope, and both edges of the j constituent papers in the paper short side direction. Can be joined,
A stopper slit or a perforation for a stopper is formed at a boundary portion between the (j−1) th constituent paper and the jth constituent paper at any edge in the paper short side direction, and the stopper slit or The stopper perforation is located on the inner side in the paper short side than the joint ,
When j pieces of the constituent papers in the overlapped state are sandwiched, if there is a perforation for the stopper, the short side of the paper for the stopper slit or the perforation for the stopper is cut off while the perforation for the stopper is cut off. An envelope paper , wherein the outer side in the direction is bent, and a stopper piece for restricting the displacement of the contents with respect to the envelope is formed. Another stopper perforation is formed at the tip of one of the edges in the paper short side direction of the j-th constituent paper, and the other stopper perforation is positioned on the inner side in the paper short side than the joint portion. And
When both edge portions in the paper short side direction of the j pieces of the configuration paper in the overlapped state are sandwiched, the other stopper perforation is cut outside the paper short side direction of the other stopper The envelope paper according to claim 2 , wherein another stopper piece is formed to be bent so as to regulate a displacement of the contents with respect to the envelope.   A perforation for opening is formed in parallel to the long side direction of the paper at any edge in the short side direction of the paper, and the perforation for the stopper is located on the inner side in the short side of the paper than the perforation for opening. The envelope paper according to any one of claims 1 to 3, wherein:

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