JP2597946Y2 - Wet paper packaging bag - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet paper packaging bag.

[0002]

2. Description of the Related Art Conventionally, as a wet paper packaging bag, as shown in FIG.
A perforated cut line 22 having an oval shape is formed by forming an openable portion 23, a lid portion 25 having an opening knob 24 on one end side, and a pressure-sensitive adhesive applied to the inner surface thereof. Is attached to the upper surface of the packaging bag body 20 from above the openable portion 23, and when the cover piece 25 is peeled off from one end side by holding the knob portion 24 in the direction indicated by the arrow a and opened, the broken portion 21 of the perforated line 22 is There is a case in which a portion of the openable portion 23 surrounded by the cutout line 22 is peeled off while being adhered to the lid piece 25, and the outlet is opened.

In this type of wet paper packaging bag, a cut line 22 is formed in a material such as a synthetic resin film, and then the material is folded in two and formed into a tubular shape by heat fusion. Insert the paper and heat seal the edges to finish. Therefore, when inserting the cut line 22 surrounding the openable portion 23, it is not possible to completely cut the entire circumference, and it is necessary to leave the break portion 21 at a plurality of locations in the circumferential direction so that it can be broken at the time of opening. There. Therefore, in the related art, a perforation is formed to form a cutout line 22 so that the breakable portions 21 are formed at an equal pitch all around the openable portion 23.

[0004]

In the conventional wet paper packaging bag, there is a break 21 on the center line b in the opening direction of the lid piece 25 passing through the knob 24, and the width of the break 21 is in the width direction. When the opening portion 23 is first opened while holding the knob portion 24 and peeling off the lid piece 25 in the opening direction, the opening portion 23 is oriented substantially perpendicular to the center line segment b. Is difficult to break, and an excessive breaking force is applied to the packaging bag body 20.

That is, since the breaking portion 21 on the center line segment b is a direction in which the width direction and the opening direction are substantially orthogonal to each other, at the time of the first opening, the breaking portion 21 has the same width direction as the breaking portion 21 of the other portion. It cannot be broken from one end side, and the entire width is broken almost simultaneously. For this reason, a very large breaking force is required compared to other parts, and the breaking force is
Join 20.

Accordingly, when a thin material is used for the synthetic resin film or the like constituting the packaging bag 20, the packaging bag 20
There is a fear that wrinkles may be generated, or the packaging bag body 20 may be broken outward from the rupture portion 21 and the like, and there is a drawback that the package bag 20 cannot be easily opened.

The present invention has been made in view of such a conventional problem,
Wet paper packaging bags that can be easily opened without causing wrinkles, tears, etc. in the packaging bag even when a thin material is used for the packaging bag without applying excessive breaking force to the packaging bag The purpose is to provide.

[0008]

According to the present invention, an outer periphery of an elliptical or elliptical opening region in which both ends in the longitudinal direction are arc-shaped is provided on the upper surface 3 of a packaging bag 1 made of a synthetic resin film or the like. A perforated line 5 is formed along the cut line 5 to form an openable portion 4, and a plurality of cut lines 5 are provided at predetermined intervals in the circumferential direction so that some of the broken portions 6 Of the opening area, one end in the longitudinal direction of the opening area, a knob 10 for opening, and a pressure-sensitive adhesive 11 on the lower side.
The lid piece 9 coated with is applied to the upper surface 3 of the packaging bag body 1 from above the openable portion 4 with the pressure-sensitive adhesive 11, and the lid piece 9 is held from one end side by holding the knob portion 10 when opening. In a wet paper packaging bag in which each of the cut portions 6 is cut and opened while being peeled off from the upper surface 3 of the packaging bag body 1 to the other end side,
Each break portion 6 is formed so that the width direction of each break portion 6 is along the cut line 5 of that portion, and the break portion 6 of the arc-shaped portion is turned to the knob portion 10 by the width direction of the break portion 6. Is formed so as to be oblique with respect to the center line b in the opening direction of the lid piece 9 passing therethrough.

[0009]

When opening, the lid piece 9 is peeled off from one end. Then, since the portion surrounded by the perforated line 5 of the openable portion 4 of the packaging bag 1 is adhered to the lid piece 9 with the pressure-sensitive adhesive 11, the portion is separated from the packaging bag 1 and 9 and peels off integrally, and the outlet 8 is opened.

At the time of the first opening, the openable portion 4 is opened while the breakable portion 6 is broken, and the opening is performed.
Since it is not in a direction substantially perpendicular to b, each breaking portion 6 can be broken from one end in the width direction, and the packaging bag 1 does not lack an unnecessary breaking force.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show a first embodiment of the present invention. FIG.
In FIG. 4 to FIG. 4, reference numeral 1 denotes a packaging bag, which is formed into a tubular shape using an air-tight material such as a synthetic resin film, and a wet paper is inserted into the tubular shape. Finished flat.

The upper surface 3 of the packaging bag 1 has an openable portion.
A cutout line 5 constituting 4 is formed in an oval shape along the outer periphery of the central opening area. The perforated line 5 has a plurality of, for example, four, broken portions 6 in the circumferential direction. The openable portion 4 separates from the upper surface 3 of the packaging bag body 1 when an opening area surrounded by the cutout line 5 becomes an opening piece 7 when each breakable portion 6 is cut off and cut off from the cutout line 5, An outlet 8 is formed in the trace of the opening piece 7.

Reference numeral 9 denotes a cover piece made of a material such as a synthetic resin film, which is formed in a substantially rectangular shape, and has an opening knob 10 integrally formed at the center of the short side of one end thereof. A pressure-sensitive adhesive 11 is applied to the entire inner surface of the lid piece 9 except for the knob portion 10. And this lid piece 9
A pressure-sensitive adhesive 11 is attached to the upper surface 3 of the packaging bag 1 from above the openable portion 4 so as to cover the openable portion 4.

As shown in FIG. 5, the breaking portion 6 has a knob portion.
It is constituted by an uncut portion having a width c that can be easily broken when the lid piece 9 is peeled off from one end by holding the lid 10 and opened. Of the four breaks 6, two breaks 6 are arranged on an oval straight portion surrounding the openable portion 4, and the width direction thereof is provided along the cutout line 5 of the straight portion. ing. The other two broken portions 6 are arranged at positions opposite to each other from the center line b in the opening direction of the lid piece 9 passing through the knob portion 10 at the arc portions at both ends of the oval. The width direction is provided along the cutout line 5 of the arc portion.

Therefore, the two broken portions 6 of the straight line portion have a width direction substantially parallel to the center line segment b, and the two broken portions 6 of the circular arc portion have, as shown in FIG. The width direction is inclined in the direction of the angle α with respect to the center line segment b, and none of the breaks 6 has a width direction that is substantially perpendicular to the center line segment b.

The breaks 6 are arranged substantially point-symmetrically. Also, the lid piece 9 can be opened on the opposite side of the knob 10
4 is a non-peeling part 12, which is peeled off from the knob part 10 so that the non-peeling part 12 remains at the time of opening.

At the time of opening, hold the knob 10 and hold the lid
9 is peeled off while being pulled in the direction of arrow a. Then, the portion of the openable portion 4 surrounded by the cutout line 5, that is, the opening piece 7 is adhered to the lid piece 9 with the pressure-sensitive adhesive 11, so that the breakable portion 6
Is broken and the opening piece 7 is cut off from the cutout line 5 and separated from the upper surface 3 of the packaging bag 1. And this opening piece 7
Is turned up together with the lid piece 9 in the state of being adhered to the lid piece 9, and an outlet 8 is formed at the separation mark of the opening piece 7.

At the time of opening, hold the knob 10 and hold the lid 9
Is pulled in the direction indicated by the arrow a, the breaking portions 6 are broken, and the opening pieces 7 are completely separated from the packaging bag 1.
6 is laterally separated from the center line b in the opening direction of the lid piece 9 passing through the knob 10, and its width direction is not oriented in a direction substantially orthogonal to the center line b. 6 can be easily broken.

That is, at the time of unsealing, the opening piece 7 starts to be turned up integrally with the lid piece 9 from the opening start end d side of the openable portion 4. When the broken portion 6 of the circular arc portion on the opening start end d side is to be broken, the opening piece 7 is slightly turned up from the opening start end d side. A breaking force is applied from one end in the width direction, and the breaking portion 6 is broken. For this reason, the breaking portion 6 is easily broken as compared with the conventional case where the width direction of the breaking portion is substantially perpendicular to the center line b. The same applies to the other break portions 6.

Therefore, the packaging bag 1 is not subjected to an excessively large breaking force at the time of the first opening, and the packaging bag
Even if a thin material is used, wrinkling of the packaging bag 1 can be prevented.

Further, each of the break portions 6 can be easily broken, and
1 is not forcibly pulled.
There is no fear that the packaging bag 1 is torn outside from the time of 6. In particular, even in the case where the broken portion 6 is provided in the middle of the circular arc portion, as shown in FIG. 5, from the center e of the circular arc portion to the outside of the line segment f drawn at an angle of 45 degrees with respect to the center line segment b. If it is separated, the break portion 6 will surely start to break from one end in the width direction, so that even if the width c of the break portion 6 is slightly increased, it can be broken very easily.

FIG. 6 shows a second embodiment of the present invention. In this embodiment, two breakable portions 6 are disposed asymmetrically at a position apart from the center line segment b at the arc portion and the straight portion at one end of the openable portion 4, and the arc portion at the other end is formed. in the center,
Two cut lines 13 parallel to the center line segment b are formed, and a separation preventing portion 14 is formed between the tips of the two cut lines 13.

Also in this case, since each break portion 6 is separated from the center line segment b and its width direction is not in a direction substantially orthogonal to the center line segment b, it can be easily broken from one end in the width direction. can do. The cover piece 9 has two cut lines 13 when opened.
To the end of the cut line 13, the separation preventing portion 14 between the cut lines 13.
Thus, the opening piece 7 is connected to the packaging bag body 1 so that the entire lid piece 9 is not accidentally peeled off from the packaging bag body 1. Further, the peel preventing portion 14 plays the same role as the other break portions 6 at the time of manufacturing the packaging bag.

FIG. 7 shows a third embodiment of the present invention.
Is provided with a knob 10 at a corner on one end side. In this case, the lid piece 9 is peeled off while pulling the knob portion 10 in the direction of arrow a at the time of opening. On the opening start side, a point where the line segment g in a direction substantially perpendicular to the center line segment b in the direction of the arrow a and the arc portion of the openable portion 4 are in contact with each other is the opening start end d. Since h is the end of the opening,
Each break portion 6 is arranged at a position other than these.

That is, at positions other than the opening start end d and the opening end end h, the width direction of the break portion 6 is deviated from a direction substantially perpendicular to the center line segment b. Can be broken from one end side in the width direction. Therefore, in this case, the break portion 6 may be on the center line segment b. A cut line 15 for preventing peeling is formed in a substantially L-shape at the other end of the lid piece 9. Both ends of the cut line 15 are located on a line segment i in a direction substantially orthogonal to the center line segment b. When the lid piece 9 is peeled off to the line segment i, further peeling is performed. It is designed to block.

FIG. 8 shows a fourth embodiment of the present invention, in which the upper surface 3 of the packaging bag 1 is embossed and the embossed portion 16 is formed.
The openable portion 4 is surrounded from the outer peripheral side, and a lid piece 9 is adhered on the embossed portion 16.
In this way, the bonding area between the packaging bag 1 and the lid piece 9 is reduced, and the peeling resistance at the time of opening can be reduced.
Since the embossed portion 16 forms a waist in the packaging bag 1, a thinner material can be used for the packaging bag 1.

Although the embodiments have been described in detail, the present invention is not limited to these embodiments. For example, the cutout line 5 can be formed in an elliptical shape in addition to an elliptical shape. Further, the breaking portion 6 may be any as long as the opening piece 7 can be kept connected to the packaging bag body 1 side until it is broken at the time of opening. It may be formed by half-cutting in a V shape from one or both sides. Further, the number of the break portions 6 may be two, three, or five or more.

[0028]

According to the present invention, according to the present invention, on the upper surface 3 of the packaging bag 1 made of a synthetic resin film or the like, along the outer periphery of an elliptical or elliptical opening region in which both ends in the longitudinal direction are arcuate. A cutting line 5 is inserted to form an openable portion 4, and a plurality of breakable portions 6 are provided at predetermined intervals in the circumferential direction in the middle of the cutting line 5 so that a part of the broken portion 6 is located in the arc-shaped portion. A cover piece 9 having a rupture portion 6, an opening knob 10 on one end side in the longitudinal direction of the opening area, and a pressure-sensitive adhesive 11 applied to the lower surface is attached to the lid 9 by the pressure-sensitive adhesive 11. It is adhered to the top surface 3 of the packaging bag 1 from above the openable portion 4, and when opened, the knob 10
Of the wet paper packaging bag in which each of the cut portions 6 is cut and opened while peeling the lid piece 9 from one end side to the other end side from the upper surface 3 of the packaging bag body 1
Each of the break portions 6 is formed so that the width direction thereof is along the cut line 5 of the portion, and the break portion 6 of the arc-shaped portion is formed.
Are formed so that the width direction of the break portion 6 is oblique to the center line b in the opening direction of the lid piece 9 passing through the knob portion 10, so that each break portion 6 is formed at the time of the first opening. It can be easily broken and does not apply an excessive breaking force to the packaging bag 1.

Therefore, even when a thin material is used for the packaging bag 1, wrinkles are generated in the packaging bag 1 at the time of opening, and the packaging bag 1 is torn outward from the break portion 6, etc. It can be easily opened. In particular, when the break portion 6 is provided in the arc portion, a large force is required to break the break portion 6 at the opening start end side near the knob portion 10, but in the present invention, the break portion of the arc portion is 6 is formed so that the width direction of the break portion 6 is oblique to the center line b in the opening direction of the lid piece 9 passing through the knob portion 10, so that the opening start end close to the knob portion 10 is formed. The breaking portion 6 on the side can also be easily broken. In addition, since each break 6 can be easily broken, it is possible to increase the number of breaks 6 or to increase the size of each break 6 in the width direction. Despite the simplicity, it is possible to prevent a problem such as breakage of the broken portion 6 in the manufacturing process.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention in a state where a cover piece is peeled off.

FIG. 2 is a perspective view showing the first embodiment of the present invention during opening.

FIG. 3 is an enlarged view taken in the direction of arrows AA in FIG. 1;

FIG. 4 is an enlarged view taken along the arrow BB of FIG. 1;

FIG. 5 is an explanatory diagram of a main part showing the first embodiment of the present invention.

FIG. 6 is a plan view showing a second embodiment of the present invention in a state where a cover piece is peeled off.

FIG. 7 is a plan view showing a third embodiment of the present invention in a state where a cover piece is peeled off.

FIG. 8 is a plan view showing a fourth embodiment of the present invention in a state where a cover piece is peeled off.

FIG. 9 is a plan view showing a conventional example.

[Explanation of symbols]

 5 Cut-out line 6 Break part 9 Lid piece 10 Knob part 11 Pressure-sensitive adhesive b Center line

Claims (1)

(57) [Scope of request for utility model registration] 1. A packaging bag comprising a synthetic resin film or the like.
On the upper surface (3) side of (1), make a cut line (5) along the outer circumference of the elliptical or elliptical opening area where both ends in the longitudinal direction are arc-shaped, and open the openable part (4). In the middle of the cut line (5), a plurality of breaks (6) are provided at predetermined intervals in the circumferential direction so that some breaks (6) are located in the arc-shaped portion, A lid piece having an opening knob (10) on one end side in the longitudinal direction of the opening area and a pressure-sensitive adhesive (11) applied on the lower surface side
(9) is adhered to the upper surface (3) of the packaging bag body (1) from the openable portion (4) with the pressure-sensitive adhesive (11), and when opening the cover, hold the knob (10). While peeling the piece (9) from one end to the other end from the upper surface (3) of the packaging bag (1), cut each cut section (6) and open it in a wet paper packaging bag. The break portions (6) are formed so that the width direction of the portion (6) is along the cut line (5) of the portion, and the break portion (6) of the arc-shaped portion is replaced with the break portion 6). Center line of the opening direction of the lid piece (9) passing through the knob (10)
(b) A wet paper packaging bag formed so as to be inclined with respect to (b).