JP2002308288A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag which saves a packaging material to be used and improves a packaging work efficiency for packaging foods such as fresh fish and Sushi. SOLUTION: A rectangularly cylindrical packaging bag material made of a synthetic resin film is, in a flat state, folded inside along fold lines 2 on both sides thereof to be formed into a gusset shape, and a lower end of the packaging bag material is closed by heat sealing. When the packaging bag material is opened so that the lower end thereof becomes flat, a heat-sealed portion 3 at the lower end being faced down, a packaging bag is formed into a substantially rectangularly cylindrical shape so that contents 6 can be put thereinto through an opening 5 at an upper end thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for packaging foods such as fresh fish and sushi.

[0002]

2. Description of the Related Art Conventionally, when selling fresh fish, for example, a method has been adopted in which fresh fish is placed on a tray and wrapped around it. In the case of selling sushi, a method has been adopted in which sushi is packed in a box-shaped container, a lid is placed over the sushi, and the sushi is wrapped with wrapping paper.

[0003] However, when selling fresh fish, it is necessary to put the fresh fish on a tray and wrap the surroundings with plastic wrap. In the case of selling sushi, the sushi is packed in a box-shaped container. It is necessary to cover the cover with a cover and to wrap the surroundings with wrapping paper. Therefore, it is desired to reduce the amount of each wrapping material and improve the wrapping work efficiency.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In order to package foods such as fresh fish, sushi, etc., a packaging bag with reduced packaging materials and improved packaging work efficiency is provided. It is intended to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a gusset-shaped tubular wrapping bag made of a synthetic resin film, in which the bending lines on both sides thereof are folded inward in a flat state. When the lower end is closed by heat sealing, and the lower end is flattened with the lower end of the heat seal portion down, the contents become substantially square cylindrical and the contents are inserted from the upper end opening. The gist of the present invention is as follows. Further, the present invention is characterized in that a rectangular tubular frame that opens vertically is set at the lower end of the packaging bag.

[0006] With this configuration, for example, foods such as fresh fish and sushi are directly stored as contents in a packaging bag made of a synthetic resin film, or a rectangular cylindrical frame that opens vertically at the lower end of the packaging bag. By setting the body, storing the contents in this frame and wrapping it in a packaging bag, put the contents in a tray or a box-shaped container as described in the conventional example,
The work of wrapping it with wrap or wrapping paper is unnecessary,
Overall, it is possible to reduce the number of packaging materials and improve the efficiency of the packaging operation.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, a first embodiment shown in FIGS. 1 to 4 will be described. Reference numeral 1 denotes a packaging bag made of a synthetic resin film. Is folded inward to make a gusset. And this packaging bag 1
Is closed by heat sealing. FIG.
(A)-(c) have shown the manufacturing process of the packaging bag 1. FIG. In FIG. 1C, reference numeral 3 denotes a heat seal portion at the lower end of the packaging bag 1, and the lower end of the portion folded inside is also closed by heat seal. The outer edges formed into gussets on both sides of the packaging bag 1 and formed into a V-shape have heat-seal portions 4 each having a width of about 5 mm in the longitudinal direction.
Reinforced and shaped by

When the packaging bag 1 made as described above is spread so that the lower end thereof is flat with the heat seal portion 3 at the lower end thereof facing downward, it becomes substantially rectangular tube-shaped as shown in FIG. The contents 6 such as fresh fish are put through the opening 5 and the contents 6
Is stored in the lower end of the packaging bag 1 and the upper portion of the packaging bag 1 is appropriately folded from the lower end where the contents 6 are stored, thereby completing the packaging as shown in FIG.

Next, a second embodiment shown in FIGS. 5 to 7 will be described. The packaging bag 1 used in the second embodiment is the same as that of the first embodiment. In the second embodiment, a rectangular tubular frame 7 which is opened in the vertical direction is set at the lower end of the packaging bag 1, and when the contents 6 such as fresh fish are stored in the packaging bag 1, The contents 6 are stored in the frame 7. Then, by appropriately folding the packaging bag 1 above the frame 7 in which the contents 6 are stored, the packaging is completed as shown in FIG. The frame 7
The size and shape of are determined so that the frame 7 is set in the rectangular tubular packaging bag 1 without wasteful space. The frame 7 is made of synthetic resin or paper.

Next, a third embodiment shown in FIGS. 8 to 11 will be described. The packaging bag 1 used in the third embodiment is the same as the first embodiment. A rectangular tubular frame 7 opening vertically at the lower end of the packaging bag 1
Is set in the same manner as in the second embodiment, but in the third embodiment, the depth of the frame 7 is deeper than the frame 7 used in the second embodiment. Further, by attaching the plate body 8 to the flat surface at the lower end of the packaging bag 1 from below, a packaging bag integrated with a container is completed.

[0011] Such a packaging bag integrated with a container has a content 9
For example, as shown in FIG. 11, the contents 9 are stored in the frame 7 and the packaging bag 1 above the frame 7 is appropriately folded, as shown in FIG. The packaging is completed.

Instead of attaching the plate 8 to the flat surface at the lower end of the packaging bag 1 from below, the plate 8 is attached to the flat surface at the lower end of the packaging bag 1 from the inside (upper side). Is also good.

By the way, the packaging bag 1 may be printed in advance according to the kind of the contents, so that it is not necessary to prepare another wrapping paper to be wrapped from outside the packaging bag 1.

[0014]

As described above, according to the present invention, foods such as fresh fish and sushi are directly stored as contents in a packaging bag made of a synthetic resin film, or a vertical direction is placed at the lower end of the packaging bag. By setting a rectangular cylindrical frame that opens into the frame, storing the content in the frame and wrapping it in a packaging bag, the content is placed in a tray or a box-shaped container as described in the above-described conventional example. And the operation of wrapping the wrapping paper in a wrap or a wrapping paper becomes unnecessary, so that it is possible to reduce the amount of the packaging material and improve the efficiency of the packaging operation as a whole.

[Brief description of the drawings]

FIGS. 1 (a) to 1 (c) are explanatory views showing a manufacturing process of a packaging bag according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state where the packaging bag is opened in a substantially rectangular tube shape.

FIG. 3 is a perspective view showing a state where contents are put in the packaging bag.

FIG. 4 is a perspective view showing a state where the contents are wrapped in the packaging bag.

FIG. 5 is a perspective view showing a state in which the packaging bag according to the second embodiment of the present invention is opened in a substantially rectangular tube shape.

FIG. 6 is a perspective view showing a state where contents are put in the packaging bag.

FIG. 7 is a perspective view showing a state where the contents are wrapped in the packaging bag.

FIG. 8 is a perspective view showing a state in which a packaging bag according to a third embodiment of the present invention is opened in a substantially rectangular tube shape.

FIG. 9 is a cross-sectional view of the packaging bag.

FIG. 10 is a perspective view showing a state where contents are put in the packaging bag.

FIG. 11 is a perspective view showing a state where the contents are wrapped in the packaging bag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Folding line 3 Heat seal part 4 Heat seal part 5 Upper end opening 6 Contents 7 Frame 8 Plate 9 Contents

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E064 AA13 AB14 AB30 BA21 EA02 EA04 FA01 GA06 HM01 3E067 AA11 AB02 AB13 AB16 AC03 BA12A BB14A BC03A EC32 EC33 EE02 FA01 FC01

Claims (2)

[Claims] 1. A cylindrical packaging bag material made of a synthetic resin film is flattened, and the bending lines on both sides thereof are folded inward to form a gusset shape, and the lower end is closed by heat sealing. A packaging bag characterized in that, when the heat sealing portion at the lower end is turned downward, the lower end is flattened and when opened so that the lower end is flat, it has a substantially cylindrical shape so that contents can be inserted from the upper end opening. 2. The packaging bag according to claim 1, wherein a rectangular tubular frame that opens vertically is set at a lower end of the packaging bag.