JPH06298262A - Bag for hermetical packing - Google Patents

Abstract

PURPOSE:To form an open face easily, extract the contents easily, use a bag in an upright position and dispose of the bag after folding, by making an uncomplete join of a sheet as a face for opening and its adjacent sheets on part of their border. CONSTITUTION:A sheet 4 as a face for opening and particular parts 11 and 12 on borders 5 and 6 between the sheet 4 and its adjacent faces 1 and 2, respectively, are not completely joined. Therefore, by holding peeled parts 4b and pulling them to a specific position as shown by dotted lines, the sheet 4 for an open face is peeled, so that the open face is created. At that time, because the particular parts 11 and 12 around the sheet 4 are uncompletely joined, the sheet can be easily peeled off the rim. After the se of contents 28, the bag can be folded into a smaller shape by folding a sheet 3 and the open-face sheet 4 inside along corresponding folding lines. Additionally, the bag can be kept stably upright by support parts 15 and 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetically-sealing bag which does not lose its shape when a solid substance, a powder substance, a semi-fluid or the like is enclosed.

[0002]

2. Description of the Related Art As shown in FIG.
Some have a structure in which the closed end portion (29) serving as an opening is cut out with scissors to take out the contents, and some have a structure in which the bag is torn and opened from a cutout formed in a cutout at the end portion.

[0003]

Since the conventional sealed packaging bag cuts off the closed end, when the contents are left and the lid is tried again, the sheets around the opening are put together. It is very troublesome to fold it and hold it with clips or rubber bands. Moreover,
Since the surplus portions of the sheets gathered together to form the closed end are tilted inward, the opening area becomes small and it is difficult to take out the contents. Moreover, it is difficult to open a regular shape in the case of a structure torn from the cut end. On the other hand, there are those that can be traded in a container with a lid so that the contents can be dispensed, but it is difficult to dispose of the used container.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the gist of the present invention is to set one surface out of a plurality of surfaces constituting a bag for opening and to open the opening. A proper portion at the boundary between the sheet forming the working surface and the sheet forming the surface adjacent to the opening surface is in the incompletely bonded state.

[0005]

The sheet forming the surface set for the opening can be easily peeled off because the appropriate portion at the boundary with the adjacent surface is incompletely bonded. Moreover, since one surface is opened as it is in a planar shape, a large opening area can be taken. Further, if it is partially peeled off, it can be repeatedly used as a lid that can be easily opened and closed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the hermetically sealed bag of the present invention, in which the miso (28) is hermetically contained as a content, FIG.
Shows the state before accommodating the miso, respectively. (1), (2),
(3) is a laminated film sheet (hereinafter abbreviated as a sheet) in which a stretched nylon film and a polyolefin film are laminated, and (4) is an opening face sheet, which is a mixture of stretched nylon film and a different kind of synthetic resin. It is formed of a laminated film formed by laminating the above films. (5) and (6) are incompletely joined side edges in which the adjacent side edges of sheets (1), (2), and (4) are incompletely joined, and (7) and (8) are sheets (1 ), (2), and (3) are welded side edges formed by welding adjacent side edges to each other.

Here, the incompletely bonded state means a state in which the sheets are bonded so that they can be easily separated from each other. The incompletely bonded state is caused by the incompletely bonded side edges formed by welding the sheets (1), (2), (3) and the opening surface sheet (4).
As in (5) and (6), it can be obtained by welding sheets formed by mixing and dispersing different kinds of synthetic resin materials at a constant temperature. For example, a cohesive peeling type such as polyethylene and polypropylene, or polystyrene and polypropylene can be used to achieve the incompletely bonded state. Further, a type capable of peeling between the layers of the laminated film may be used. In addition, as the material to be laminated and formed, a metal foil such as aluminum, a paper material, or the like can be used in addition to the synthetic resin film.

(9) and (10) are the sheet (1) and the sheet (1) when the sheet (3) is folded inward along the folding line (3a) as shown in FIG.
Welding edges formed by welding adjacent edges of the folds formed by (2) and (3), and (11) and (12) are the opening surface sheet (4) in the same manner. The incompletely joined edges formed by welding the adjacent edges of the folds formed by folding inward at the folding line (4a) are shown. (17) is the central welded part where each of the gathered edges (9), (10), (11), and (12) is gathered in the center, and (13) is the welded edge (9 ) Sheet (2) along the line that is slanted down from the upper end to the welding side edge (7)
And (3) slanted welding side formed by welding, and (14) is a sheet along the line diagonally lowered from the upper end of the welding edge (10) to the welding side edge (8). The inclined weld sides formed by welding (1) and (3) are shown respectively. (15) is a supporting piece formed in a triangular shape by the welding side edge (7), the welding edge (9) and the inclined welding side (13), and (16) is also the welding side edge (8). And welding edge
(10) and a support piece formed in a triangular shape by the inclined welding side (14), respectively. (4b) and (4b) are incomplete bond edges (1
It is a peeling piece formed by partially peeling off 1) and 12) and has a size that can be picked up with a finger. The other closed end portion (22) shown in FIG. 1 has the edges (18), (19), (2) shown in FIG.
It is formed by bending and welding 0) and (21) in the same manner as described above.

The hermetically-sealed bag of the present invention thus formed has the opening sheet (4) when the peeling pieces (4b), (4b) are picked up and pulled to a predetermined position as shown by a dotted line in FIG. ) Is peeled off to form an opening surface. At this time, since the appropriate part of the peripheral edge of the sheet (4) is incompletely bonded, it can be easily peeled from the peripheral edge, and no extra sheet remains on the peripheral edge, and the opening surface is maximized. Because it is formed into
The contents can be taken out easily without getting caught. Moreover, the peeled sheet can be returned to its original position and used repeatedly as a lid, and after using the miso, the sheet (3) and the opening surface sheet (4) can be folded inside with their respective folding lines. Since the bag can be folded by folding it in, it does not become bulky at the time of disposal. Further, the support pieces (15) and (16) can maintain a stable self-supporting state.

3 and 4 show a modified embodiment of the present invention. As shown in FIG. 3, the hermetically sealed bag is formed by forming only one peeling piece (23) at the center of the tip of the sheet for opening surface (4). ) Is peeled off from the peripheral edge in the incompletely bonded state. FIG. 4 shows the structure of the closed end portion (27) of the hermetically sealed bag shown in FIG. Reference numerals (24) and (25) denote welding edges before welding, and holes (26) are formed at the same portions in the inner sheets (24b) and (25b), respectively. That is, the outer sheet (2
4a) and (25a) are welded to the inner sheets (24b) and (25b) respectively, but the outer sheets are welded to each other through the holes (26) and (26), and the welding edge (24) And (25) are not separated. By forming in this way, the support piece does not spread in the lateral direction, and a more stable self-supporting state can be maintained.

The shape of the hermetically sealed bag is not limited to the above embodiment, but may be another shape. Also, the formation position and shape of the support piece can be changed as appropriate.

[0012]

According to the present invention, the opening surface can be easily formed and the contents can be easily taken out. Further, it can be used in a self-supporting state like a plastic sealed packaging container, or can be folded and discarded like a flexible sealed packaging bag. Thus, the present invention can provide a hermetically sealed packaging bag having the advantages of both the plastic hermetically sealed packaging container and the flexible hermetically sealed packaging bag.

[Brief description of drawings]

FIG. 1 is an explanatory view of a hermetically sealed bag according to the present invention in a state in which miso is stored.

FIG. 2 is an explanatory view of a sealed packaging bag according to the present invention before sealing.

FIG. 3 is an explanatory view of another embodiment of the hermetically sealed bag according to the present invention.

4 is an explanatory view of a support piece of the hermetically sealed bag shown in FIG.

FIG. 5 is an explanatory diagram of a conventional hermetic packaging bag.

[Explanation of symbols]

1, 2, 3 ... Sheets, 4 ... Opening surface sheets, 3a,
4a ... Folding line, 4b, 23..Peeling piece, 5,6 ..
.Incompletely bonded side edges, 7, 8 ... Welded side edges, 9, 10, 2
4,25 ··· Welding edge, 11, 12 · · Incompletely joined edge, 13, 14 · · Welding inclined side, 15, 16 · · Supporting piece, 17 · · Central welding part, 18, 19 , 20, 21 ...
Edges, 22, 27, 29 ... Closed ends, 24a, 24
b, 25a, 25b ... sheet, 26 ... hole, 28 ...
miso.

Claims (2)

[Claims] 1. A foldable hermetically-sealed packaging bag formed of a flexible sheet, wherein one of a plurality of surfaces constituting the bag is set as an opening and the opening surface is formed. A hermetically-sealed packaging bag, wherein an appropriate portion at a boundary between the sheet to be formed and a sheet forming a surface adjacent to the opening surface is in an incompletely bonded state. 2. Sheets that are self-supporting in a bag-like assembled state and have at least a front surface and a back surface and a pair of side surfaces and that form each surface are welded to each other at a boundary portion of each surface. , The both sides are folded inward by folding lines formed in the vertical direction and the adjacent sides of the folds formed above and below and the facing sides are combined and welded to close the top and bottom of the bag. The surface of the bag is set for opening, and an appropriate portion at the boundary between the sheet forming the opening surface and the sheet forming the adjacent surface is incompletely connected, and at least one of the upper and lower sides of the bag is appropriately set. 2. A support piece formed of a part of the container is formed at the location.
The bag for hermetic packaging as described in.