JP2002059941A - Envelope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an envelope capable of easily applying both functions for sealing a flap piece with an adhesive layer and for opening the flap piece with a seal opening longitudinal member. SOLUTION: There is provided an envelope having a flap piece 3 for use in closing an opening part 4 of an envelope main body 2. As a solving means, this envelope is constructed such that an inner surface 3a of the flap piece 3 is provided with an adhesive layer 8 having a peeling-off paper 7 extending along a longitudinal direction of the flap piece 3. At least the peeling-off paper 7 is formed with a separating line 11 for use in separating the peeling-off paper 7 along the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an envelope provided with a flap piece, and more particularly, to an envelope provided with an adhesive layer to which the flap piece is adhered and an opening elongate body for opening the sealed flap piece. About the envelope that was placed.

[0002]

2. Description of the Related Art Conventionally, in an envelope composed of a bag-shaped envelope body having an opening and a flap piece for closing the opening, an adhesive layer to be stuck is provided on the inner surface of the flap piece. An envelope provided with an opening elongate body (for example, a string or a cut tape) for opening a sealed flap piece is known. For example, Japanese Patent Publication No. 44-215
As shown in Japanese Patent Publication No. 95, there is known an envelope in which an adhesive material corresponding to an adhesive layer and a strip corresponding to an elongate body for opening are provided on an inner surface of a closing lid corresponding to a flap piece.

[0003]

However, when manufacturing the conventional envelope, it is necessary to provide an adhesive layer on the flap piece and to provide the flap piece with an elongate body for opening. Therefore, the manufacturing process is complicated. Furthermore, in order to supply an adhesive layer and an opening elongate body made of different materials to an envelope production line, supply devices having different performances must be prepared, and equipment costs are required.

Accordingly, an object of the present invention is to provide an envelope which can easily have both functions of sealing a flap piece by an adhesive layer and opening a flap piece by an opening elongate body.

[0005]

According to the present invention, there is provided an envelope provided with a flap piece for closing an opening portion of an envelope body. 3a, an adhesive layer 8 to which a release paper 7 is attached is provided along the longitudinal direction of the flap piece 3, and at least the release paper 7 is divided along the longitudinal direction. The present invention provides an envelope on which a dividing line 11 is formed. Further, the present invention provides a cutting perforation 12 on the flap piece 3 along one side edge or both side edges of the release paper 7 ′ near the opening 4 in the release paper 7 to be cut. The present invention provides the envelope in which is formed. Further, the present invention provides the envelope in which a part of the perforation 12 is also used as the dividing line 11.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the envelope of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes an envelope body 2 for storing objects to be stored, such as letters and documents, and a flap piece 3 attached to an outer surface of the envelope body 2.
1 shows an envelope including: The envelope main body 2 is formed by folding a single cut sheet material or stacking two sheet materials to form a substantially rectangular bag having an opening 4 on one short side. It is formed in a shape. The flap piece 3 is a piece that extends from the sheet material of the envelope body 2 via the folding line 6 and has a shape that becomes gradually narrower toward the tip (for example, a substantially horizontally elongated trapezoidal shape as shown in FIG. 1). Etc.) are formed. The sheet material is
It is a cuttable material, and for example, a known material such as paper or a synthetic resin film can be used.

On the inner surface 3a of the flap piece 3 (the surface 3a to be adhered to the envelope main body 2), an adhesive sheet with a release paper 7 attached thereto in the longitudinal direction (in substantially the same direction as the folding line 6 of the flap piece 3). Layer 8 (adhesive tape with release paper) is provided. Specifically, an adhesive layer 8 made of a pressure-sensitive adhesive or the like is provided at a position near the front end of the inner surface 3a of the flap piece 3 and in the same direction as the folding line 6 of the flap piece 3 with respect to the envelope body 2. A strip-shaped release paper 7 is attached so as to cover the surface of the adhesive 8. Such release paper 7
Is extended from one short side of the flap piece 3 to form a knob 10.

The pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 8 is not particularly limited as long as the flap piece 3 can be adhered to the envelope body 2, and a known material can be used, for example, a pressure-sensitive pressure-sensitive adhesive such as an acrylic resin. And the like. Further, as the release paper 7, a known release paper can be used, and examples thereof include paper, a synthetic resin sheet, a laminate of paper and a synthetic resin sheet, a cloth or a nonwoven fabric subjected to a release treatment, but the strength is too weak. It is preferable to use a sheet-like material having a strength equal to or higher than that of the flap piece 3 because it does not fulfill the function of cutting the flap piece 3 as the elongate body for opening. Here, the release paper 7 referred to in the present invention includes non-paper products such as synthetic resin sheets as described above.

Further, the release paper 7 is provided with a cutting line 1 in the longitudinal direction (in the same direction as the folding line 6 of the flap piece 3).
1 is formed. The dividing lines 11 are used to divide the release paper 7 into two pieces in the longitudinal direction. As the dividing lines 11, for example, perforations 11 are exemplified. Due to the dividing line 11, the release paper 7 is divided into a release paper 7 ″ for protecting the adhesive layer 8 and a release paper 7 ′ as an opening elongate body for cutting the flap pieces 3.
Similarly, the knobs 10 correspond to the corresponding knobs 10 ′,
10 ".

[0010] The flap piece 3 includes the dividing line 11.
Along the both sides 7a 'of the release paper 7' (release paper 7 'as an opening elongate body) near the opening 4 among the release papers 7 separated (2 minutes) by the cutting in the longitudinal direction. Perforations 12 are formed. In addition, a pair of perforations 12 formed on both side edges 7a 'of the release paper 7' near the opening 4.
Of these, the perforation 12 for cutting assistance near the tip of the flap piece 3 is formed at the same position as the dividing line 11 formed on the release paper 7, as shown in FIG. The perforations 11 as the dividing lines 11 and the perforations 12 for assisting the cutting are also used mutually.

The envelope 1 having the above configuration is manufactured, for example, by the following steps. That is, the dividing line 1 is attached to the envelope body 2 on which the perforation 12 for cutting assistance is not formed.
After attaching an adhesive tape with release paper on which No. 1 is formed, a perforation 12 for cutting assistance is provided by a rotary pressing blade or the like.
By simultaneously engraving the perforations 11 as the dividing lines 11, the envelope 1 according to the present invention can be manufactured. Further, as another manufacturing method, for example, a sheet body such as paper is formed in a predetermined shape in advance, and the envelope body 2 on which the perforations 12 for cutting assistance are formed is flowed on a manufacturing line through a supply roller or the like in an expanded state. Meanwhile, a roll of double-sided pressure-sensitive adhesive tape having a release agent adhered to one surface is cut into a predetermined shape while cutting lines 11 are cut, and the flap pieces 3 of the envelope body 2 in an unfolded state flowing on the production line are cut into The opposite side (adhesive side) of the surface to which the release paper 7 is attached is attached in the longitudinal direction based on the perforation 12 for assisting the cutting of the flap pieces 3, and the envelope body 2 is attached in a bag shape. It can also be manufactured.

As shown by the two-dot chain line in FIG. 1, the envelope 1 according to the present invention has a grip portion of the release paper 7 ″ near the leading end of the flap piece 3 among the release papers 7 divided by the division line 11. By picking 10 "and peeling off only the release paper 7" in the longitudinal direction, a part of the adhesive layer 8 is exposed. Next, the flap piece 3 is folded back from the folding line 10 as shown in FIG. Next, the envelope 1 can be sealed.
In FIG. 7, the attached portion is shaded for convenience.

According to the envelope 1 according to the present invention, the release paper 7 ′ of the release paper 7 near the opening 4 is not peeled off but remains attached to the flap piece 3, so that when the envelope 1 is opened. By pulling the tab 10 'of the release paper 7' in the longitudinal direction, the release paper 7 'functions as an elongate body for opening, so that the flap piece 3 can be reliably cut and opened. In particular, since the perforation 12 for cutting assistance is formed on the flap piece 3 so as to sandwich the release paper 7 ′, the flap piece 3 can be cut and opened more reliably.

As described above, the envelope 1 is made of the release paper 7.
By simply adhering the pressure-sensitive adhesive tape on which the dividing line 11 is formed to a predetermined position of the envelope body 2, it is possible to provide a pressure-sensitive adhesive layer for sealing and a long cut body (release paper 7 ') for opening. Therefore, it is possible to easily manufacture the envelope 1 having both functions of sealing and opening the flap pieces 3.

In the above embodiment, the envelope body 2
Although the front surface has a substantially rectangular shape, the front surface can be formed in an arbitrary shape such as a front approximately square shape. In addition, the size of the envelope body 2 can be a large envelope used not only for fixed-size mail but also for non-standard-size mail.

Further, in the above-described embodiment, the flap piece 3 is provided on one short side of the envelope main body 2. For example, as shown in FIG. Flap pieces 3 may be provided, and although not particularly shown, two or more flap pieces 3 may be provided.

Further, in the above-described embodiment, the flap piece 3 is formed in a substantially oblong trapezoidal shape when viewed from the front. It may be formed in an arbitrary shape such as a triangular shape.

Further, in the above embodiment, the release paper 7
A perforation (one in which a hole portion and a non-hole portion are alternately continuous like a seam of a perforation needle) is illustrated as the dividing line 11 formed in the above, but the dividing line 11 is not limited to the perforation. For example, a cutting line obtained by completely cutting the release paper 7 or a fragile line that is not cut but weakens a part of the release paper 7 may be used as the dividing line 11.

In the above embodiment, the adhesive tape with release paper is adhered to the flap piece 3. For example, an adhesive is applied to the flap piece 3, and
The envelope 1 may be configured by attaching a release paper on which is formed.

Further, in the above embodiment, the adhesive layer 8 to which the release paper 7 is attached is provided on the flap piece 3 in a straight line, but it is not always necessary to provide the adhesive layer 8 in a straight line. Providing the adhesive layer 8 with the release paper 7 attached along the longitudinal direction (almost the same direction as the folding line 6 of the flap piece 3) is not limited to the meaning of being parallel to the folding line 6. Absent.

Further, in the above embodiment, since the perforation 12 for cutting assistance and the dividing line 11 are formed at the same position on the flap piece 3, for example, the perforation 12 for cutting assistance and the dividing line 11 are provided. Although there is an advantage in manufacturing that the perforations 11 can be engraved at the same time, the configuration is not necessarily limited to the configuration in which the perforation 12 for cutting assistance and the dividing line 11 are provided at the same position. Further, in the above-described embodiment, the flap piece 3 is provided with two cutting perforations 12 along both side edges of the release paper 7 ′ near the opening 4. A perforation 12 for assisting cutting may be provided along one of the side edges (one side edge). However, since the flap piece 3 cannot be cut with the release paper 7 'unless the perforation 12 for cutting is formed, the envelope 1 having no perforation 12 for cutting may be used. In addition, in the above-described embodiment, the breaking line 11 formed on the release paper 7 is formed to reach the adhesive layer 8 as shown in FIG. 8 has the advantage of being easier to divide,
It is not necessary that the separation line 11 be formed in the adhesive layer 8.

In the above embodiment, the release paper 7
Since the knob 10 is extended at the end of, there is an advantage that the release paper 7 can be easily gripped, but the envelope 1 without the knob 10 is also within the scope of the present invention.

As an example of use of the envelope 1 according to the present invention, it can be used not only for mail, but also for various things such as portable envelopes and storage envelopes for storage of documents and articles.

[0024]

As described above, according to the envelope according to the present invention, the flap piece can be sealed by the adhesive layer, and the flap piece after sealing can be opened by the opening elongated body. Can be easily performed. Such an envelope having both functions can be easily manufactured in a small number of manufacturing steps.

Further, an envelope in which a perforation is formed along one side edge or both side edges of the release paper near the opening in the release paper to be cut off on the flap piece, the release paper is used. When cutting the flap pieces, the flap pieces are cut smoothly along the perforations. Therefore, the flap pieces can be cut and opened more reliably without damaging the contents. In the case of an envelope in which a part of the perforation is also used as the parting line, for example, a step of forming a parting line for parting and cutting assistance can be performed in a single step.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an envelope according to the present invention.

FIG. 2 is a rear view of the same.

FIG. 3A is an end view taken along line AA of FIG. 1;
(B) shows the BB line end figure of FIG.

FIG. 4 is a front view showing a state in which the envelope according to the present invention is sealed.

FIG. 5 is a front view showing another embodiment of the envelope according to the present invention.

[Explanation of symbols]

2: Envelope main body, 3: Flap piece, 3a: Inner surface of flap piece, 4: Opening, 7: Release paper, 7 ': Release paper near opening, 8: Adhesive layer, 11: Breaking line, 12: Sewing machine Eye

Claims (3)

[Claims] In an envelope provided with a flap piece (3) for closing an opening (4) of an envelope body (2),
On the inner surface (3a) of the flap piece (3), an adhesive layer (8) to which a release paper (7) is attached is provided along the longitudinal direction of the flap piece (3). An envelope characterized in that a separation line (11) for cutting the release paper (7) along the longitudinal direction is formed on the release paper (7). 2. The release paper (7 ') near the opening (4) of the release paper (7) to be cut is provided on the flap piece (3).
The envelope according to claim 1, wherein a perforation (12) for assisting cutting is formed along one side edge or both side edges of the envelope. 3. The envelope according to claim 2, wherein a part of the perforation (12) also serves as the dividing line (11).