JP2001301770A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag to be easily opened by the force of a child although the packaging capacity to a usage area of a raw fabric is as large as that of the side sealing type or the bottom sealing type. SOLUTION: The closed-end packaging bag 1 with an opening 2 on its upper edge is provided with face-shaped sealing sections 4 on a part of side edges 1b and 1c, and notches 5 of almost V-shape are provided on the face-shaped sealing sections 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag useful for packaging foods such as vegetables and other various packages.

[0002]

2. Description of the Related Art There are various types of packaging bags, and a packaging method and a packaging bag suitable for protection of the quality and value of the package, convenience of handling, promotion of sales are selected. ing. For example, there are the following four types. I. While the film-shaped raw material unwound from the roll is half-folded and transported while being transported, it is formed by fusing and sealing the left and right side edges where the bag is formed by the fusing and sealing device, and the upper edge is formed. Side seal type with openings. B. Bottom seal type in which the seal portion, where the bag is made by a normal bag making device while transporting the tube-shaped raw material unwound from the roll, is used as the bag bottom and the upper edge is opened. C. A backing seal type in which the back of the film-shaped raw material unwound from the roll is surface-sealed and bagged by a backing bag making device while being transported. D. A three-side seal type in which a film-shaped material unwound from a roll is half-folded and transported by a three-way sealing device while making a bag. Each of these types of bags is used properly according to the package.However, comparing the used area of the raw material and the packing capacity, if the packing capacity is large when the used area of the raw material is constant, , Side seal type, bottom seal type, backing seal type, and three-way seal type. The order is determined by the size of the seal area depending on whether the seal is a face seal or a linear seal.
On the other hand, when looking at the convenience when opening the bag, as seen in the three-sided seal type or the backing type, the one provided with the notch as the cut is easy to open, It is difficult to open in a form having no notch like a side seal type or a bottom seal type.

[0003]

The first problem is that the packaging capacity with respect to the used area of the raw material is as large as that of the side seal type and the bottom seal type. Packing bag for 2nd
Further, a packaging bag in which the packaging capacity with respect to the use area of the raw material is maximized is secured, and a third is a packaging bag that can be opened without damaging the packaged material. In
Furthermore, a packaging bag that allows for smooth loading and unloading of a package, a fifth, a packaging bag that allows smooth removal of a package, and a sixth, an unintended opening action at a notch. An object of the present invention is to provide a packaging bag that has been provided with safety measures in the event that the company works.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a bottomed packaging bag having an opening at an upper edge, wherein the bag body has a planar seal at a part of a side edge. And a substantially V-shaped notch is provided in the planar seal portion. In the present invention, the bag body is characterized in that a half-folded folded portion is formed as a bag bottom portion, left and right side edges are formed by fusing and sealing, and an upper edge is formed as an opening portion.
Further, in the present invention, the planar seal portion is formed at a corner of the bag body, and the seal edge in the bag formed by the planar seal portion is from the side edge to the side edge or the side edge. It is characterized by being continuous up to the bag bottom. Further, in the present invention, the opening side of the seal edge in the bag formed by the planar seal portion is substantially arc-shaped or substantially inclined so as to face the opening in a mode that does not hinder the insertion / removal of the package through the opening. Characterized in that it is a sealing edge portion. Further, in the present invention, the opening side of the seal edge in the bag formed by the planar seal portion is substantially arc-shaped or inclined so as to face the opening in a mode that does not hinder the taking in and out of the package through the opening. In addition to the sealing edge portion, the bag bottom portion side of the sealing edge portion is a substantially arc-shaped or substantially inclined shape facing the bag bottom portion, or a linear sealing edge portion extending in and out of the package. Further, the present invention is characterized in that a linear seal portion is provided at a distance from a seal edge in a bag formed by the planar seal portion.

[0005] In the present invention, the planar seal portion at the side edge portion is:
It may be formed at the end, that is, at the corner, or may be formed between them, and the number of face seals may be either singular or plural. Further, the planar seal portion may be formed on one side edge portion, or may be formed on both the left and right side edge portions. Further, when the planar seal portions are formed on the left and right side edge portions, they may be formed to face left and right or diagonally, and there is no limitation. The form of the planar seal portion may be any of a semicircular shape, a triangular shape, a square shape, a trapezoidal shape, and other similar shapes. And, the linear sealing portion formed at a distance from the sealing edge portion in the bag is in a mode in which the linear edge portion is continuous from the side edge portion to the side edge portion, and in a mode in which the linear sealing portion is continuous from the side edge portion to the bag bottom portion. Either may be used. The form of the linear seal portion may be the same shape as the seal edge portion, or may be a different shape. The planar seal portion and the linear seal portion may be formed simultaneously at the time of fusing and sealing the left and right side edges, or may be formed separately. Examples of the material of the bag include various types of natural or synthetic resin films and other known materials.

[0006]

1 to 4 show one embodiment of a packaging bag according to the present invention. A bag 1 is a vertically long rectangular shape, and a half-folded folded portion is formed at a bag bottom 1a. The left and right side edges 1b, 1c are formed by fusing and sealing,
This is a side seal type in which the inside of the bag communicated with the opening 2 of the upper edge 1d is formed as a housing portion 3. A planar seal portion 4 is formed in a part of the left edge portion 1b of the bottomed bag body 1 near the upper and lower ends, and the upper and lower planar seal portions 4 have substantially V-shaped cuts. Notch 5
Are arranged respectively. The planar sealing portion 4 is formed in a semicircular shape, and the sealing edge 6 in the housing portion 3 formed by the planar sealing portion 4 is moved from the sealing portion of the left edge portion 1 b to the planar sealing portion 4. And continues to the sealing portion of the left side edge portion 1b, and the sealing edge portion 6 on the opening 2 side.
a, the seal edge portion 6b on the side of the bag bottom 1a is formed in a substantially arc shape facing the bag bottom 1a, and the presence of the planar seal portion 4 is shown in FIG. It is formed in a mode that does not hinder the taking in and out of the package through the opening 2.

FIG. 5 illustrates another embodiment of the packaging bag of the present invention. The configuration is basically the same as that of the embodiment shown in FIG. Will be omitted by applying the same reference numerals, and different configurations will be described. The planar seal portion 4 of the bag 1 is formed diagonally on the left edge 1b and the right edge 1c.

FIG. 6 illustrates another embodiment of the packaging bag according to the present invention. Since the configuration is basically the same as that of the embodiment of FIG. 1, the configuration is common. Will be omitted by applying the same reference numerals, and different configurations will be described. The planar seal portion 4 in the bag 1 is formed symmetrically above and below the left edge 1b and the right edge 1c.

FIG. 7 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention. In FIG. 7A, the planar seal portion 4 has a deformed semicircular shape, The edge 6 is continuous from the left edge 1b to the lower end of the left edge 1b, and the seal edge 6a on the side of the opening 2 is formed in a substantially arc shape facing the opening 2 to form a seal edge on the side of the bag bottom 1a. Part 6b
In the example, each is formed in a substantially inclined shape facing the bag bottom 1a. In FIG. 7B, the planar seal portion 4 has a deformed rectangular shape, and the seal edge 6 extends from the left edge 1b to the bag bottom 1a.
And at the sealing edge 6a on the opening 2 side of the sealing edge 6 in a substantially inclined shape facing the opening 2 and through the opening 2 at the sealing edge 6b on the bag bottom 1a side. Each is formed in a straight line along the direction of taking in and out the package. In FIG. 7C, the planar seal portion 4 has a deformed rectangular shape, the seal edge 6 is continuous from the left edge 1b to the bag bottom 1a, and the seal edge 6 has a seal on the opening 2 side. In the edge portion 6a, the seal edge portion 6b on the bag bottom portion 1a side has a substantially arc shape facing the opening 2.
In a straight line along the direction of taking in and out of the package through the opening 2,
Each is formed.

FIG. 8 shows another example of the planar seal portion in the packaging bag according to the present invention. In FIG. 8A, the planar seal portion 4 has a substantially triangular shape and has a sealing edge. The portion 6 is continuous from the left edge 1b to the left edge 1b around the planar seal portion 4, and the seal edge portion 6a on the opening 2 side.
In this embodiment, the sealing portion 6b on the side of the bag bottom 1a is formed in a substantially inclined shape facing the bag bottom 1a. In FIG. 8B, the planar seal portion 4 has a substantially triangular shape, and the seal edge portion 6 has the left edge portion 1b.
From the surface seal portion 4 to the lower end of the left side edge portion 1b, and at the seal edge portion 6a of the seal edge portion 6 on the side of the opening 2 in a substantially inclined shape facing the opening portion 2.
The seal edge portion 6b on the bag bottom 1a side is formed in a substantially inclined shape facing the bag bottom 1a.

FIG. 9 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention. In FIG. 9A, the planar seal portion 4 has a substantially trapezoidal shape, and The portion 6 is continuous from the left edge 1b to the left edge 1b, and the sealing edge 6a on the side of the opening 2 has a substantially inclined shape facing the opening 2 at the sealing edge 6b on the side of the bag bottom 1a. In this example, each of them is formed in a substantially inclined shape facing the bag bottom 1a, via a straight line portion 6c connecting the both and extending along the opening / removal direction of the package through the opening 2. In FIG. 9B, the planar seal portion 4 has a substantially trapezoidal shape, and the seal edge portion 6 has a left edge portion 1b.
From the surface seal portion 4 to the lower end of the left side edge portion 1b, and at the seal edge portion 6a of the seal edge portion 6 on the side of the opening 2 in a substantially inclined shape facing the opening portion 2.
The seal edge portion 6b on the bag bottom portion 1a side is formed in a substantially inclined shape facing the bag bottom portion 1a via a straight line portion 6c connecting the both and extending in and out of the package through the opening 2. .

FIG. 10 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention, and FIG.
Then, the planar seal portion 4 has a substantially triangular shape, and the seal edge portion 6 is continuous from the left edge portion 1b to the bag bottom portion 1a.
It is formed in a substantially inclined shape facing the opening 2. In FIG. 10B, the planar seal portion 4 has a substantially triangular shape, and the seal edge portion 6 is continuous from the left edge portion 1b to the left edge portion 1b around the planar seal portion 4 and has a seal edge. In the seal edge portion 6a on the side of the opening 2 in the portion 6, the sealing edge portion 6b on the side of the bag bottom 1a is substantially inclined so as to face the opening 2.
Each is formed in a substantially parallel shape facing the bag bottom 1a.

FIG. 11 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention.
Then, the planar seal portion 4 has a substantially rectangular shape, and the seal edge portion 6 extends from the left edge portion 1b to the bag bottom portion 1a around the planar seal portion 4 and the seal edge portion 6a on the opening 2 side.
In the example, the seal portion 6b is formed in a substantially parallel shape facing the opening 2 and in a substantially linear shape along the direction of taking in and out the package through the opening 2 at the seal edge portion 6b on the bag bottom 1a side. FIG.
1 (B), the planar seal portion 4 has a substantially rectangular shape, and the seal edge 6 is continuous from the left edge portion 1b to the left edge portion 1b around the planar seal portion 4 and the seal edge portion. In the seal edge portion 6a on the side of the opening 2 in FIG. 6, the two are connected in a substantially parallel shape facing the opening 2 and in the seal edge portion 6b on the side of the bag bottom 1a in a substantially parallel shape facing the bag bottom 1a. In addition, they are formed through straight portions 6c along the direction of taking in and out of the package through the opening 2.

FIG. 12 exemplifies another embodiment around the planar seal portion in the packaging bag of the present invention. In FIG. 12A, the planar seal portion 4 is basically the same as that in the embodiment of FIG. 1, and is separated from the seal edge 6 in the bag formed by the planar seal portion 4 by a line. The linear seal portion 7 is continuously formed in a substantially semicircular shape from the left side edge portion 1b to the left side edge portion 1b around the seal edge portion 6 while maintaining a slight interval. I have. In FIG. 12 (B), the planar seal portion 4 is basically the same as that of the embodiment of FIG. 10 (A), and is spaced from the seal edge 6 in the bag formed by the planar seal portion 4. Is formed, and the linear seal portion 7 is continuous from the left side edge portion 1b to the bag bottom portion 1a in a substantially inclined shape while maintaining a slight interval from the seal edge portion 6. In FIG. 12C, the planar seal portion 4 is basically the same as that of the embodiment of FIG. 1, and is separated from the seal edge 6 in the bag formed by the planar seal portion 4 by a line. The linear sealing portion 7 is continuous from the left edge portion 1b to the bag bottom portion 1a in a substantially inclined shape while keeping an interval with the sealing edge portion 6. In FIG. 12D, the planar seal portion 4 is basically the same as that of the embodiment of FIG.
A linear seal portion 7 is formed at a distance from the seal edge 6 in the bag formed by the planar seal portion 4, and the linear seal portion 7 maintains a slight interval from the seal edge 6. While continuing from the left edge portion 1b to the bag bottom portion 1a in a substantially inclined shape, an intermittent seal portion 8 is formed between the left edge portion 1b and the seal edge portion 6.

In addition to the embodiment of the planar seal portion 4 and the linear seal portion 7 illustrated in FIGS. 7 to 12, the presence of the planar seal portion 4 or the linear seal portion 7 The present invention is not limited to these embodiments, as long as it does not hinder the transfer of the package through the container.

FIG. 13 shows another embodiment of the cutout portion of the packaging bag of the present invention. In FIG. 13A, the cutout portion 5 is provided at the bottom of the semicircular recess 5a. In FIG. 13B, the cutouts 5 are respectively provided at the bottoms of the rectangular recesses 5a, and are formed in a two-stage form.

[0017]

A. Effects of the Invention According to claim 1, the packaging capacity with respect to the used area of the material is as large as that of the side seal type and the bottom seal type, yet it is easy to open even with the force of a child, and both the opposing packaging capacity and the ease of opening are excellent. High convenience in use. B. According to the second aspect, since the side seal type is used, the packaging capacity with respect to the used area of the material is maximized, and the economic effect is high. C. According to the third aspect, the opening operation can be performed without damaging the package. D. According to the fourth aspect, the presence of the planar seal does not hinder the taking in and out of the package, so that the package can be taken in and out smoothly. E. FIG. According to the fifth aspect, the presence of the planar seal does not hinder the taking in and out of the package, and the taking in and out of the package is smooth. F. According to the sixth aspect, even when an unintended opening action acts on the notch portion, the linear sealing portion responds to the unintended opening action and works, thereby being highly evaluated in terms of safety measures.

[Brief description of the drawings]

FIG. 1 is a front view illustrating one embodiment of a packaging bag of the present invention.

FIG. 2 is a longitudinal sectional view of FIG. 1 (2)-(2).

FIG. 3 is a partially enlarged cross-sectional view of (3)-(3) of FIG. 1;

FIG. 4 is a partially enlarged cross-sectional view of (4)-(4) in FIG. 1;

FIG. 5 is a front view illustrating another embodiment of the packaging bag of the present invention.

FIG. 6 is a front view illustrating another embodiment of the packaging bag of the present invention.

FIG. 7 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention, wherein (A), (B) and (C) are partially enlarged front views.

FIG. 8 illustrates another form of the planar seal portion in the packaging bag of the present invention, and (A) and (B) are partially enlarged front views.

FIG. 9 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention, wherein (A) and (B) are partially enlarged front views.

FIGS. 10A and 10B illustrate another embodiment of the planar seal portion in the packaging bag of the present invention, wherein FIGS.

FIG. 11 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention, wherein (A) and (B) are partially enlarged front views.

FIG. 12 illustrates another embodiment of the planar seal portion in the packaging bag of the present invention, wherein (A), (B), (C), and (D).
Is a partially enlarged front view.

FIG. 13 illustrates another form of the cutout portion in the packaging bag of the present invention, and (A) and (B) are partially enlarged front views.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag body 1a Bag bottom 1b Left edge 1c Right edge 1d Upper edge 2 Opening 3 Housing 4 Planar seal 5 Notch 5a Depression 6 Seal edge 6a Seal edge 6b Seal edge 6c Linear portion 7 Linear seal part 8 Intermittent seal part

Claims (6)

[Claims] In a bottomed packaging bag having an opening at an upper edge, the bag body has a planar seal formed on a part of a side edge, and the planar seal has a substantially V-shaped seal. A bag for packaging, characterized by having a notch formed in the bag. 2. The packaging body according to claim 1, wherein the bag body is formed by forming a half-folded folded portion as a bag bottom portion, forming a left and right side edge by fusing and sealing, and forming an upper edge portion as an opening. bag. 3. A planar seal portion is formed at a corner of a bag, and a seal edge in the bag formed by the planar seal portion is formed from a side edge to a side edge or from a side edge. 3. The packaging bag according to claim 1, wherein the packaging bag is continuous to the bottom of the bag. 4. A substantially arc-shaped or substantially inclined shape in which an opening side of a seal edge in a bag formed by a planar seal portion faces an opening which does not prevent a package from being taken in and out through the opening. The packaging bag according to any one of claims 1 to 3, wherein the packaging bag is a sealing edge portion. 5. A substantially arc-shaped or inclined shape in which an opening side of a seal edge in a bag formed by a planar seal portion faces an opening which does not hinder the taking in and out of a package through the opening. The seal edge portion, and the bag bottom portion side of the seal edge portion is a substantially circular arc shape or a substantially inclined shape facing the bag bottom portion, or a linear seal edge portion along a direction in which a package is taken in and out. Any one of 1-3
A packaging bag according to the item. 6. The bag according to claim 1, further comprising a linear seal portion spaced apart from a seal edge in the bag formed by the planar seal portion. Packaging bag.