JPH02269657A - Envelope with seal-breaking preventive function - Google Patents

Abstract

PURPOSE:To repeatedly used an envelope by a method wherein perforated cut-off lines are formed in the lateral direction on a lengthy lid for sealing, and strips surrounded by two perforated cut-off lines are used as adhesive sealing strips. CONSTITUTION:The upper end of an envelope E is folded toward the rear face to form a lengthy sealing lid 2 where several perforated cut-off lines 3 are formed, and strips surrounded by the perforated lines are used as adhesive sealing strips 4. The pattern of the perforated cut-off lines 3 can be a zip- fastener-like one besides a straight one. Thereby, the envelope can be repeatedly used by the number of times equivalent to the number of the adhesive sealing strips 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an envelope for storing documents, etc., which can prevent numbers from being placed on the sealing part, and can be used repeatedly and safely. The present invention relates to an envelope having a tamper-proof function.

(Background of the Invention) Envelopes in which a sealing portion is formed by folding back a closing tongue formed on the front side of an opening to the back side after accommodating documents, etc. have been well known for a very long time.

Although the above-mentioned envelope has a universal structure and is extremely commonly used, it has been pointed out that it has the following problems. That is, (1) the structure of the closing tongue portion is not suitable for repeated use; therefore, envelopes that have been used and opened several times are simply disposed of, which is extremely wasteful.

(2) There is a concern that the closing tongue may be damaged (opened).

etc. is that.

[Purpose of the invention]

The present invention is intended to cope with this situation in view of the above-mentioned circumstances. That is, the present invention aims to provide an envelope that can be used repeatedly by forming the closing tongue portion so that it can be separated into several stages.

Another object of the present invention is to provide an envelope constructed so that the closure tongue can be sealed accurately and the risk of tampering or tampering is extremely reduced.

[Summary of the Invention] The present invention provides an envelope in which the upper end is folded back to form a closing tongue. The gist of the invention is an envelope having a tamper-proofing function, in which perforation-like perforation lines are formed in several stages in the direction, and the portions surrounded by the perforation lines are each formed as a band-like adhesive surface.

〔Example] Embodiments of the present invention will be described below with reference to the drawings.

The envelope generally designated by E is a known one, and is formed into a bag shape with an open top end using base paper having an appropriate thickness, and is attached to the top end of the front piece 1 by folding it back to the back side. A closing tongue piece 2 is integrally and continuously formed.

The closing tongue 2 described above is formed vertically with a length several times the length of the closing tongue used in conventional envelopes, and has a perforated cutout along the horizontal direction. Lines 3 . . . 3 are carved in several stages, and a band-shaped portion surrounded by the lines 3 is formed as a bonding surface 4 .

The interval between the perforated cut lines 3...3 (width of the strip-shaped adhesive surface 4) is formed to have an appropriate width for closing by pasting the back side to the envelope body. can be,
For example, it may be formed to have a width similar to that of a closing tongue in a conventionally known envelope.

The perforated cut lines 3...3 may be carved simply as straight chain lines as illustrated in FIGS. 4 and 6, or as illustrated in FIGS. It can also be formed into a zipper shape as illustrated in FIG.

In addition, in the case of a zipper-shaped cut line, the strip-shaped adhesive surfaces 4...4 are formed every other time, and the strip-shaped portion surrounded by the adhesive surfaces 4...4 is a peelable piece. 41...41.

Further, as shown in FIG. 4, fields 42 for writing the sending department, destination name, etc. can be displayed on the band-shaped adhesive surface 4, and by configuring in this way, the sealed It is possible to clearly identify the sender and recipient on the pasted side.

The back side of the closing tongue piece 2 is configured so that it can be used as a base paper without adding any special structure, and each time the envelope is used, the adhesive surface formed on the closing tongue piece 2 is attached. It is also possible to use a structure in which an adhesive is applied to the back side of the closing tongue piece 2, but in consideration of ease of use, an adhesive 5 or the like is applied to the back side of the closing tongue piece 2 in advance. This is desirable.

Further, in this case, it is necessary to adhere a release paper 6 to the surface to which the adhesive 5 is applied in order to protect the adhesive 5.

In addition, when the release paper 6 is attached, the perforation-like perforation lines 3 . . . 3 need to be cut deep enough to reach the surface of the release paper 6.

In the figure, 43 is a stamp stamped across the adhesive surface 4 and the surface of the envelope body E.

〔Effect of the invention〕

The effects of the present invention configured as described above are as follows.

(1) A long closing tongue piece 2 is formed by folding back from the upper end of the envelope body E to the back side, and a perforation-like cutout line 3 is formed over several stages on the closing tongue piece 2, which is formed to be 20 long. . . 3 is formed by engraving, and the area surrounded by it is configured as the adhesive surface 4 . . . 4, so that the adhesive surface 4 .
Envelopes can now be used repeatedly as many times as 4.

(2) When it becomes necessary to use an envelope, the back side of the adhesive surface 4 located at the bottom of the adhesive surfaces 4...4 formed in several stages on the closing tongue piece 2. is attached to the contact surface of the envelope body E, and the other attachment surfaces 4...4 are configured so that they are not attached to the envelope body E, making it possible to accurately maintain the number of uses. .

(3) Mark the interface between the closing tongue piece 2 and the envelope body E,
Alternatively, by writing information such as the sender and addressee in the column 42 on the surface of the adhesive surface 40, it is possible to check which stage of the adhesive surface 4 the adhesive surface 4 currently in use is. Therefore, even if a third party intentionally opens the package, looks at the internal documents, and then re-seals the package using the adhesive surface 4 located at the top, it can be easily confirmed. There is a safety that can be done.

(4) When opening the envelope, cut out the perforation-like cutout line 3 carved at the boundary between the pasted surface 4 and the pasted surface 4 located above. If you cut it out,
As illustrated in FIGS. 5 and 6, the seal can be easily opened without damaging the adhesive surfaces 4...4 located above the adhesive surface.

(5) Perforation-like cutouts, vi13...3, are formed at the boundaries of the adhesive surfaces 4...4 formed over several stages, making it easy to cut and peel off when opening the package.

In particular, when the perforation lines 3 . . . 3 are formed into a zipper shape as illustrated in FIG. 5, the package can be opened extremely easily simply by lifting the end of the peelable piece 41. (See Figure 5(b))

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is a perspective view showing a state in which a closing tongue piece is attached, and Fig. 2 is a sectional view taken along the line A-A in the same figure, showing a part of it. 3 is a perspective view showing a state in which the adhesive surface is removed from the state illustrated in FIG. 1, and FIG. 4 is a front view showing only the closing tongue portion of a different embodiment. FIG. 5(a) is a front view showing an example in which the perforation line is formed into a zipper shape, FIG. FIG. 3B is a front view showing an example in which a chain line is formed, and FIG. E... Envelope, 1... Front piece, 2... Closing tongue piece,
3... Cutting line, 4... Adhesive surface, 41... Peeling piece, 42... Writing field, 5... Adhesive, 6... Release paper

Claims (3)

[Claims] (1) In an envelope whose upper end is folded back to the back side to form a closing tongue, the aforementioned closing tongue is formed into a long length, and the long closing tongue is perforated in several steps in the lateral direction. An envelope having a tamper-proofing function, which is formed by forming a cutout line in the shape of a shape, and forming a band-shaped adhesive surface in each area surrounded by the cutout line. (2) An envelope having a tamper-proofing function according to claim 1, wherein the closing tongue piece alternately forms an adhesive surface and a peelable piece. (3) A patent in which adhesive is applied to the back side of the closing tongue in advance, and a release paper is removably adhered to the adhesive-applied surface to protect the applied adhesive. An envelope having a tamper-proofing function according to claims 1 and 2.