JP2005305956A - Concealing seal for postcard, and concealed postcard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a concealed postcard to be instantly and easily unsealed while confidential information on the postcard is concealed, and the unsealed fact is left as an evidence. <P>SOLUTION: A strong adhesive 21 having pressure sensitivity which cannot be separated is arranged into a small width along one edge facing a perforation 13 to a base material paper 12 which is connected with a main body paper 11 through the perforation 13 for folding back. An adhesive 22 having pressure sensitivity which can be separated is arranged on almost all regions other than the region of the strong adhesive 21, and a division A having a small width by half-cut lines 12a and 12a is formed in a manner to contain the region of the strong adhesive 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a concealment seal for a postcard that can conceal confidential information on the postcard and leave the opened fact as evidence, and a concealment postcard.

  A concealment seal is used to conceal confidential information on the postcard. The concealment seal may be separated from the postcard. For example, the concealment seal may be integrated with the postcard via a folding perforation, and may be a so-called concealment postcard.

  About the cover for concealment of concealment postcards, a strong adhesive that cannot be peeled off is applied along the edge of the folded tip side, and a perforation for separation is formed immediately inside the area of the strong adhesive. Has been proposed (Patent Document 1). However, a peelable adhesive is applied to the entire region other than the strong adhesive region. This is the one that peels off the concealment seal along the perforation for separation and opens it. This enhances the confidentiality of confidential information and part of the separated seal on the postcard. Since it remains, it is possible to reliably leave the opened fact as evidence.

A concealing postcard is also known in which a concealment seal is adhered by applying a strong pressure and cannot be re-adhered once opened (Patent Document 2). This can not be re-adhered when opened, and the fact that it has been opened can be left as evidence, but since special equipment is required for adhering the seal, for example, it is obvious for applications where individuals conceal confidential information. It is inappropriate.
JP 7-17165 A Japanese Patent Publication No. 5-57118

  According to the former of the prior art (Patent Document 1), the concealing seal must be peeled while breaking along the perforation for separation, so that the opening operation is not easy, and the workability of the opening operation There was a problem that was not good.

  Therefore, in view of the problems of the prior art, the object of the present invention is to provide a partition area by a half-cut line, so that no special equipment is required for bonding, and the opened fact is reliably left as evidence, all at once. An object of the present invention is to provide a concealment seal for a postcard that can be easily opened and a concealment postcard.

  To achieve this object, the first invention according to this application (referring to the invention according to claim 1, hereinafter the same) is composed of a rectangular base material sheet capable of concealing confidential information on a postcard. The paper is arranged with a pressure-sensitive strong adhesive that cannot be peeled narrowly along at least two opposite sides, and a peelable pressure-sensitive adhesive is placed almost all over the area of the strong adhesive, The gist of the invention is to form a narrow partition region partitioned by a half-cut line so as to include a region of a strong adhesive.

  The configuration of the second invention (referred to the invention according to claim 2, the same shall apply hereinafter) is concatenated to the main body paper via a postcard-sized main body paper and a perforation for turning back, and the confidential information on the main body paper can be concealed The base paper is composed of a pressure-sensitive strong adhesive that cannot be peeled along a side facing the perforation, and the pressure-sensitive adhesive that can be peeled off. The gist of the present invention is to form a narrow partition region that is disposed by a half-cut line so as to be disposed in almost the entire region other than the agent region and to include the strong adhesive region.

  In addition, instead of being formed on the base paper, the partition area can be formed on the main body paper so as to include a strong adhesive region when the base paper is folded on the main body paper. , Strong adhesive, release paper that protects the adhesive can be added.

  However, in this application, the “half-cut line” is a trajectory of the blade that cuts from one surface of the paper material to the other surface, and the cutting depth is not the entire thickness of the paper material, The one that stays in part. In addition, “substantially the entire area” refers to the entire area excluding the minute width space left outside the partitioned area by the half-cut line or between the areas of the strong adhesive and the adhesive.

  According to the configuration of the first invention, the base paper can be concealed with confidential information on the postcard by adhering it to the postcard via a strong adhesive or adhesive. That is, the base paper is not larger than the postcard, has a size that can sufficiently cover the display area of the secret information on the postcard, and has a sufficiently small light transmittance so that the secret information cannot be read. . Note that strong adhesives and adhesives do not require special equipment and can be easily bonded by finger pressure.

  When reading confidential information, the base paper is peeled off and opened, but at this time, the strong adhesive in the partition area by the half-cut line cannot be peeled off, so delamination of the base paper in the partition area As a result, the surface of the postcard after opening is transferred to a narrow width on the surface of the postcard after opening, ensuring the fact that it has been opened. Can be left in. In addition, no special consideration or skill is required to peel the base paper while peeling off the surface portion in the partition area in this way. It can be easily peeled at once in the same manner as in the case of bonding.

  As long as the base paper is a paper material in which only the surface portion in the partition area by the half-cut line is peeled off due to delamination with a strong adhesive, any other white plain paper can be used. Paper material can be used. In addition, the half-cut line can easily form a narrow partition region by forming two equally spaced strips using, for example, a pair of rolling slitter blades. However, the half-cut line may be two or more strips or a ladder shape. Further, the half-cut line may be formed in a curved line shape, a curved line shape, or the like in addition to a straight line shape. The distance between the half-cut lines and the depth of cut are, for example, 5 mm and 0.05 mm, respectively, for high-quality paper with a thickness of 0.15 mm, so that only the surface part in the partition area is peeled off with a strong adhesive. Can do.

  The pressure-sensitive adhesive is, for example, an aqueous emulsion-type pressure-sensitive adhesive mainly composed of natural rubber, and preferably has an adhesive strength of about 5 to 20 g / cm. The strong pressure-sensitive adhesive is, for example, a hot-melt pressure-sensitive adhesive. An agent that exhibits an adhesive force that only causes delamination of the base paper in an open time of 0.5 seconds or less and about 1 to 12 hours after bonding is preferable. In addition, by placing the strong adhesive on at least two opposite sides of the base paper, it becomes difficult to open without leaving any evidence, and it is possible to keep confidential information inside sufficiently. .

  According to the configuration of the second invention, the concealing base paper is connected to the postcard main body paper via the folding perforation, and therefore, the first is excluding that both are integrally formed. It is almost the same as 1 invention. That is, the second invention also uses the same strong pressure-sensitive adhesive and pressure-sensitive adhesive as those of the first invention, forms a partitioned area by the same half-cut line, and folds the base paper on the main body paper through the perforation. Therefore, the same effect can be obtained and the same effect can be obtained. The base paper of the second invention is not separated from the main body paper when it is peeled off and opened, so it is sufficient to arrange a strong adhesive along one side facing the perforation. . However, the strong adhesive may be disposed along part or all of the remaining sides of the base paper.

  The partition area by the half-cut line is formed on the main body paper side instead of the base paper side, so that the main body paper side is peeled off with a strong adhesive, and the surface portion in the stripped partition area is on the base paper side. Can be migrated. This is because the partition area is formed so as to include a strong adhesive area on the base paper when the base paper is folded onto the main body paper. The partition area on the main body paper side can be formed independently from the areas of the strong adhesive and the adhesive on the base paper, and therefore includes the area of the strong adhesive on the base paper, As long as delamination within the partition region can be appropriately generated, the positional accuracy and dimensional accuracy can be moderated appropriately.

  By adding release paper to the base paper, the strong adhesive and the adhesive can be appropriately protected even when the main body paper and base paper are spread and stacked. As the release paper, a release-treated paper with a silicone-containing varnish or the like is used so that the release paper can be smoothly peeled off and removed from the strong adhesive.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The concealment postcard is formed by concatenating a base material sheet 12 for concealment to a main body sheet 11 of postcard size (FIG. 1). However, FIGS. 1A and 1B are respectively an equivalent diagram of the entire plane and an equivalent diagram of the entire side surface. FIG. 1B exaggerates the thickness direction of the main body sheet 11 and the base sheet 12. Has been.

  On the surface of the main body paper 11, in addition to the display of “postcard” and the stamp field, a description area 11a for address and a display area 11b for secret information are provided.

  The base paper 12 is connected to the lower short side of the main body paper 11 via a folding perforation 13. The base paper 12 is formed in a rectangular shape having the same width as the main body paper 11, and covers the entire secret information display area 11 b on the main body paper 11 when folded on the main body paper 11 through the perforation 13. Secret information can be concealed. On the base paper 12, a pressure-sensitive strong pressure-sensitive adhesive 21 that cannot be peeled is applied in a narrow width along one side facing the perforation 13. The base paper 12 is provided with a peelable pressure sensitive adhesive 22 applied to almost the entire area other than the area of the strong adhesive 21. Half cut lines 12a and 12a are formed on both sides of the narrow strong adhesive 21 over the entire width of the base paper 12. Accordingly, the region of the strong adhesive 21 has half cut lines 12a and 12a. It is completely included in the narrow partition area A partitioned by 12a. Further, a common release paper 14 for protecting the strong adhesive 21 and the adhesive 22 is added to the base paper 12.

  In this concealment postcard, the release paper 14 is peeled off and removed from the base paper 12, and then the base paper 12 is folded on the main body paper 11 through the perforation 13, and the strong adhesive 21 and the adhesive 22 are used. By adhering to the main body paper 11, the confidential information on the main body paper 11 can be concealed (FIGS. 2A and 2B). 2A and 2B are diagrams corresponding to FIGS. 1A and 1B in a state where the base paper 12 is folded, respectively. Therefore, the concealed postcard can be posted as it is and mailed as a postcard.

  The recipient of the concealment postcard can read the secret information on the main body paper 11 by peeling the base paper 12 from the main body paper 11 (FIG. 2C). At this time, since the strong adhesive 21 cannot be re-peeled, as the base paper 12 is peeled, delamination occurs in the base paper 12 in the partition area A by the half-cut lines 12a and 12a, and the partition area Only the surface portion A 1 in A can be transferred onto the main body paper 11 and left on the main body paper 11. That is, the narrow surface portion A1 on the main body paper 11 can be used as evidence showing the fact of opening.

  The narrow partition area A by the half-cut lines 12a and 12a may be formed on the main body paper 11 instead of being formed on the base paper 12 (FIG. 3).

  In FIG. 3, the base paper 12 is connected to one long side of the main body paper 11 via a perforation 13 for folding. The base paper 12 is formed to have a width slightly smaller than the width of the postcard-sized main body paper 11. The partition area A on the main body paper 11 side has the main body paper 11 facing the perforation 13 so as to include an area of the strong adhesive 21 on the base paper 12 when the base paper 12 is folded on the main body paper 11. It is formed narrow along one side.

  Therefore, the base paper 12 is configured to hide the confidential information on the main body paper 11 by removing the release paper 14 and folding the base paper 11 on the main body paper 11 for adhesion (two-dot chain line in FIG. 3 and solid line in FIG. 4). It is possible to peel off the base paper 12 and open the confidential information (two-dot chain line in FIG. 4). When the base paper 12 is peeled off, the surface portion A1 of the partition area A on the main body paper 11 side is peeled off by the strong adhesive 21, and the base paper 12 is moved.

  The base paper 12 can be formed as a concealment seal for a postcard separate from the postcard P (FIG. 5). However, FIGS. 5A and 5B are an overall plan view and a use state plan view, respectively, and FIG. 5C is an enlarged sectional view corresponding to the line XX in FIG. 5B. .

  The strong adhesive 21 is applied by being applied narrowly along two sides on the short side of the rectangular base paper 12 (FIG. 5A). Moreover, each area | region of the strong adhesive 21 is contained in the narrow division area A by the half cut lines 12a and 12a (the figure (C)). Therefore, the base paper 12 is removed from the release paper 14 and adhered onto the display area P1 of the secret information on the postcard P via the strong adhesives 21 and 21 and the adhesive 22, so that the inside of the display area P1. Secret information can be concealed ((B) and (C) in the figure). When the base paper 12 is peeled off and opened, the strong adhesive 21 peels off the surface portion in each partition area A on the base paper 12 side and moves to the postcard P side. In FIG. 5, the strong adhesive 21 may be disposed along the partition region A along two long sides of the base paper 12, and along three or more sides including two opposite sides. You may arrange.

  In the above description, the half-cut lines 12a and 12a forming the narrow partition region A are not necessarily straight lines, and may be curved lines or the like. The partition area A is formed between the half-cut line 12a and the edge of the base paper 12 by forming a single half-cut line 12a at a position sufficiently close to the edge of the base paper 12. (FIG. 6). The same applies when the partition area A is formed on the main body paper 11 side (not shown).

Overall configuration diagram Usage diagram Overall plan view showing another embodiment FIG. 3 is an explanatory diagram of the use state. Configuration explanatory diagram showing another embodiment The principal part enlarged view which shows other embodiment

Explanation of symbols

P ... Postcard A ... Partition area 11 ... Main body paper 12 ... Substrate paper 12a ... Half-cut line 13 ... Perforation 14 ... Release paper 21 ... Strong adhesive 22 ... Adhesive

Patent applicant Fukushima Printing Co., Ltd.
Attorney Tadaaki Matsuda, Attorney

Claims (4)

  It consists of a square base paper that can conceal confidential information on a postcard, and the base paper can be peeled off by disposing a non-peelable pressure-sensitive strong adhesive along at least two opposite sides. A pressure-sensitive adhesive is disposed almost all over the region of the strong adhesive, and a narrow partition region partitioned by a half-cut line is formed so as to include the region of the strong adhesive. Concealment seal for postcards.   It consists of a postcard-sized main body paper and a base paper that is connected to the main body paper via a folding perforation and can conceal the confidential information on the main body paper. A pressure-sensitive strong adhesive is arranged in a narrow width along one side facing the perforation, and a peelable pressure-sensitive adhesive is arranged in almost the whole area other than the area of the strong adhesive; A concealing postcard characterized by forming a narrow partition region partitioned by a half-cut line so as to include the region.   The partition area is formed on the main body paper so as to include the strong adhesive region when the base paper is folded on the main body paper, instead of being formed on the base paper. The concealment postcard according to claim 2. The concealing postcard according to claim 2 or 3, wherein a release paper for protecting the strong adhesive and the adhesive is added to the base paper.

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