TWI447048B - Packaging body - Google Patents

Abstract

The present invention provides a packaging container that can be opened with a simple structure, the packaging container comprising a bag assembly (6) having first and second sealing sections (2, 3) formed at two opposite sides of four sides, and a third sealing section (4) where one side of the remaining two sides is a folding line, wherein the one remaining side is opened. The opened side is joined together in a state in which an object is placed inside the bag assembly, a fourth sealing section (5) is formed at an angle substantially orthogonal to the third sealing section (4), a pair of first and second triangles with the fourth sealing section (5) as the shared bottom side are formed, a pair of third and fourth triangles with the third sealing section (4) as the shared bottom side are formed, and the tetrahedral packaging container (6) is formed where the oblique lines of the triangles adjacent to each other in the circumferential direction are connected to each other. The first and second sealing sections (2, 3) located on the vertical lines of the first and second triangles are used as an unsealing guide for tearing.

Description

Package

The present invention relates to packages, and more particularly to packages that can be simply opened.

In general, many items are packaged in a square-shaped bag, one side of the unsealing bag, and the contents can be taken out. The opened bag still has a square shape, and the function of the packaging material can be exerted until the contents are used up. On the other hand, a tetrahedral packaging material in which the direction of one side crosses perpendicularly to the opposite side, that is, a so-called square-shaped packaging material (trade name: TETRAPACK) is well known.

There are quite a few patent applications for packaging materials. For example, Patent Document 1 discloses that a winding portion that protrudes upward is provided in a sewing thread for opening, and the winding portion is opened to the left and right after opening, that is, an open food packaging bag is easily formed. Further, Patent Document 2 discloses that a structure in which an adhesive material is easily opened is interposed between a main body of the packaging bag body and the lid.

On the other hand, a material which is easy to be opened, for example, a tubular packaging material having a backing portion having a constant width and tear property as described in Patent Document 3, and Patent Document 4 discloses that a film having a tearing property is interposed. Different tear-off packaging materials for different films. However, these packaging materials have the technical problems described below.

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-138899

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2000-264348

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2000-153871

[Patent Document 4] Japanese Patent Laid-Open Publication No. 9-30559

That is, in order to ensure easy opening, the above-mentioned conventional packaging material adopts a backing portion having a fixed width and tearing property in which a sewing thread has a special shape and is disposed between the body of the packaging bag body and the cover. Or a special composition or structure of a film different from the tearable film. However, the composition and structure of such a method are complicated, and there are problems of cost and complicated manufacturing steps.

In view of the above facts, an object of the present invention is to provide a package in which a process for accommodating a package object is produced, and when a bag having an open end is manufactured, the opening portion for tearing is used as a necessary closing portion, and it is not necessary to adopt Special means can be easily opened.

In order to achieve the above object, the present invention is to close one of the two sides of the opposite pair and the other two sides of the opposite side by the first to third closing portions, and the remaining one side is an open pocket. In a state in which the object to be packaged is accommodated in the body, a four-sided three-dimensional package formed by closing the opening substantially perpendicularly intersecting the fourth closing portion of the third closing portion is provided, and the first and second closing portions are used as The opening for the tearing of the package body.

According to the package having the above configuration, when the bag body having one side is opened, the first closing portion and the second closing portion provided on the opposite sides are used as the tearing opening portion of the package, and no special means is required. Easy to open seal.

The first and second closing portions may be formed by a heat seal line. The packaging system has a first and a second triangle having the fourth closed portion as a common bottom edge, and a third and fourth triangle having the third closed portion as a common bottom edge; and adjacent to the circumferential direction The four sides of the triangular sides are connected to each other, and the first and second closing portions are located on the perpendicular lines of the first and second triangles. When the package is unsealed by the opening portion for tearing, the container shape is formed in a state in which the object to be packaged is accommodated, and the ship shape having the expanded shape has a function of a container for holding the contents, and the contents are foods. The function of the control. The package body is provided with an opening easy portion formed by a notch, a sewing thread, a hole, and the like which are located at a central portion of the fourth closing portion and which is located on the extension of the opening portion.

The aforementioned package is formed of a material having a small amount of ultraviolet light transmission. The above-mentioned packaging object may be any thing in principle, for example, vegetables such as lettuce and spinach. In the package, when the package is unsealed along the opening portion for tearing, the unsealed pouch or the plurality of chambers partitioned by the partition wall are disposed in the package body, or may be opened when the package is opened. To make the contents of the pouch or the plurality of rooms prominent.

In the package, air is sealed inside the packaging object, and a corner sealing line is provided at each corner of the package. The degaussing line is formed in an arc shape or a straight line between the first and second closing portions and the third and fourth closing portions.

According to the package of the present invention, when the bag body having one side is opened, the first closed portion and the second closed portion provided on the opposite sides are the package body. The tearing open seal portion does not require special means, and the package body is easy to open. Further, the package of the present invention not only has the packaging function of the article, but when the package filled with the contents is unsealed, the package material is expanded into a boat shape, and the expanded boat shape also functions as a container for the contents. When the contents are foods, the boat is formed into a tray for food to be placed for consumption. The package of the present invention not only has the function of packaging, but also functions as a container for holding and holding the contents. In addition, a pouch or a partition wall can be provided for loading different contents.

Hereinafter, embodiments of the present invention will be described. However, the invention is not limited thereto. Figs. 1 to 5 are views showing an embodiment of the package of the present invention, and Fig. 1 is a bag body 1 having a square shape. The side AB is an opening and the other side is closed. Usually, the contents are loaded from the opening of A-B, and then A-B is closed to form a package. On the other hand, the present invention does not directly close A-B, but matches the angles A and B, and joins the direction of the side A-B and the direction of the side C-D in a substantially vertical intersection, and is closed in this state. Such a so-called square-shaped packaging material is well known, for example, the trade name TETRAPACK.

The side A-C is the first closing portion 2, and the side B-D is the second closing portion 3, and the closing portions 2, 3 are formed by a fold line, a heat seal line, a sewing thread or the like. The portion of the third C-D portion 3 that is closed at an angle substantially perpendicular to the side of the side C-D is a fourth closing portion 5 which will be described later. The present invention is described centering on a four-corner package, however, the shape of the bag is not limited to a square shape, and may be trapezoidal.

In the first drawing, the side A-C and the side B-D are the first closing portion and the second closing portion 2, 3 each composed of a folding line, a heat sealing line, and a sewing thread. Corners A and B are the corners at the ends of the upper side. Further, the sealing line of the first closing portion 2 and the second closing portion 3 is an opening portion as will be described later. The opening and closing portions of the fitting angles A and B are provided with an opening portion such as a notch 14, a sewing thread (not shown), a hole (not shown), and the periphery of the corners C and D. Heat seal, reinforcing material, etc.

As shown in Fig. 2, the direction of the side A-B and the direction of the side C-D are substantially perpendicularly intersected, and the angle A and the angle B are joined to close the opening. This closing portion is the fourth closing portion 5. The direction of the side AB and the direction of the side CD are substantially perpendicularly intersected, and the matching angles A and B form a closed state, and the H, H' (opposite side) of the center point of the side AB forms an angle, the original angle A and the original angle B (opposite side) becomes the center point of the side H-H'. The belt 13 is provided from the side H-H' toward the lower corner D, and the side G-G' of the lower portion of the belt 13 can be closed.

In Fig. 2, the middle point of the lower portion of the J-series 13 and the middle point of the lower portion of the belt 13 on the opposite side of the J'. As a result, the side A-B and the side C-D are in a substantially perpendicular state, and become a tetrahedral package. That is, the first triangle (GG'C) and the second triangle (GG'D) are formed by the side G-G' of the fourth closing portion 5 as a common bottom edge, and the third closing portion is formed. The CD at the side of 4 is a third triangle (CDG) and a fourth triangle (CDG') of one of the common base sides, and a tetrahedron formed by connecting the oblique sides of the triangles adjacent to the circumferential direction to each other. Package. Figure 3 is a perspective view of the tetrahedral package 6.

Fig. 2(a) is a view when viewed from the side of the original ABDC, and Fig. 2(b) is a view when the surface of the original ABCD is rotated by 90 degrees. The package 6 has a tetrahedral structure and has resistance against external pressure, and the material forming the bag 1 can be carefully observed as long as a transparent object is used. If necessary, the package 6 may be sealed with nitrogen or carbon dioxide to prevent deterioration of the freshness of the contents.

The material of the bag body 1 can be a resin film or a resin sheet. The resin may be a copolymer of a polyolefin such as polyethylene, polypropylene, polyester, polyamide, polycarbonate, polystyrene, polyvinyl chloride, polyvinylidene chloride, ethylene, and vinyl alcohol (trade name) :EVAL, etc.). In addition, if necessary, it may be a double layer or a triple (multiple) layer. Further, in order to reduce the transmittance of ultraviolet rays, a resin to which an ultraviolet absorber is added may be used.

In the package body 6 having a tetrahedral shape shown in Fig. 3, the first and second closing portions 2, 3 for forming the bag body 1 are located in the fourth closing portion 5 as a common bottom edge GG'. The first triangle (GG'C) and the second triangle (GG'D) are substantially perpendicular to each other. The first and second closing portions 2 and 3 are opening portions for tearing the package body 6. The opening (opening) is opened along the opening portion to form a boat shape as shown in Fig. 4.

When the shape of the ship is expanded, the length of the bottom is 2h, the height of the bow and the stern (depth) is t, and the center of the boat is based on the width of the ship. The depth should be less than the shape of the ship (disk shape) of t. Further, h is a material obtained by subtracting the width d of the belt 13 from the length of the packaging bag shown in Fig. 1, where d is the width of the belt 13, and t is one-half the width of the packaging bag ABDC. band Part of 13 is related to the maintenance of the shape of the boat shape of the boat's ear, and it can facilitate the handling of the container. The shape of the boat formed here allows the contents to be directly held in the shape of the boat and has the function of a container. The shape of the boat has the function of a food container, for example, having the function of a tray. For example, if the content is as washed and cut into a properly sized lettuce, the lettuce can be kept in a boat-shaped container (plate) after the package is opened, as long as the lettuce is topped with a suitable seasoning, The boat shape is used instead of the plate to eat.

In the shape of the boat, the corners C and D of the original bag ABDCD are located in the center of the upper part of the boat. Since this part is only the original one, it will become the cause of the unstable shape of the boat. Therefore, the parts around C and D should be pre-reinforced. That is, the reinforcing portions shown by the symbols 11 and 12 in Fig. 2(a) are provided. In the present embodiment, the triangular reinforcing portions 11, 12 are provided around the corners C and D. The reinforcing portions 11, 13 may fuse the entire shape of the triangle, or may fuse only the oblique side portions 16, 17 of the triangle as shown. Further, in the reinforcing portions 11, 12, a reinforcing material of a sheet or a film is attached. In the present embodiment, the object to be packaged is not limited.

As described above, when the original shape of the square-shaped bag is closed along G, G', when the contents are to be used, the opening portions A-C and B-D are opened (teared). The first closing portion 2 of the side A-C of the packaging bag ABDC and the second closing portion 3 of the side B-D are opening portions composed of a folding line, a sealing line, a sewing thread, and the like. The side A-C and the side B-D of the opening portion should be preliminarily processed for the purpose of easy opening (tearing).

For example, the side A-C and the side B-D have a large crease, a low temperature hot pressing seal, or a linear hole such as a sewing thread, which is advantageous for opening the seal. (Tear open). In addition, in order to facilitate opening (tearing) along the sides AC and the side BD of the opening portion, as shown in Fig. 5, it should be at the central portion of the side H-H' and at the first and second closing portions of the opening portion. At the extended position of 2 and 3, and at the end of the belt 13, an opening portion such as a notch 14 or other sewing thread (not shown) or a hole (not shown) is provided.

When the content is a vegetable or a salad such as lettuce or spinach, the tetrahedral packaging material is closed with a lettuce, a spinach, a salad, or a partition wall, in a state in which the package has a sealed portion. At the same time as the package is opened, the seasoning will be served on lettuce, spinach and salad, which are ready to eat.

Further, in the case of the package body 6 having the above configuration, when the bag body 1 having one side is opened, the first closing portion and the second closing portions 2, 3 are formed on the opposite sides of the four sides. However, the closing portion 2 is formed. When the fourth closed portion 5 is formed into a tetrahedral shape, it is located on the perpendicular line of the two first and second triangles (GG'C) and (GG'D). As a result, the first closed portion can be used. The second closing portions 2 and 3 are used as opening portions for tearing. That is, in the present embodiment, the first and second closing portions 2, 3 necessary for forming the bag body 1 can be easily opened without using a special means.

Figures 6 through 11 are other embodiments of the package of the present invention. Fig. 6 is a bag body 22 used in the package 20 of the present embodiment. In the bag body 22, the elongated film or sheet is bent at the lower end to form a folded rectangular shape, and the first and second closing portions 24 and 26 are formed on the opposite side (side surface).

The material of the bag body 22 is the same as that of the above embodiment, and can be transparent or A translucent or colored resin film or a resin sheet, and if necessary, may be a double or triple layer. Further, in order to lower the transmittance of ultraviolet rays, a resin to which an ultraviolet absorber is added should be used.

In the present embodiment, the first and second closing portions 24 and 26 are formed by cutting a film (sheet) with a hot knife and heat-sealing the end faces of the film (sheet). The closing portions 24, 26 may also replace the heat seal lines of the end faces with the heat seal lines of the heat-pressed faces of the faces of the film.

The bag body 22 is formed on one side (lower end) of the remaining two sides, and forms a third closing portion 28 composed of a bending line, and the remaining one side (upper end) forms an opening. In the present embodiment, a pair of arc-shaped corner seal lines 30a and 30b are provided at both ends of the third closing portion 28. The corner sealing lines 30a and 30b are formed by thermocompression sealing lines.

One of the corner sealing lines 30a is formed by connecting the left end side of the third closing portion 28 and the first closing portion 24, and the other corner sealing line 30b is connected to the right end side of the third closing portion 28 and 2 is formed between the closing portions 26.

Further, the third closing portion 28 may be a hot-pressed sealing line instead of the bending line. After the bag body 22 described above is formed, the object to be packaged is placed in the bag body 22 from the upper end opening portion. At this time, as shown in Fig. 7, the center portion C of the upper end opening of the bag body 22 is pulled away in the front-rear direction, and the ends A and B of the upper end opening are brought close to each other to open the opening portion. , a specific amount of leafy vegetables V.

Vegetable V of leafy vegetables, for example, cut vegetables of lettuce, spinach, broccoli, turnip, edamame, and various leafy vegetables into vegetables of a certain size. And so on, such vegetables have a uniform diameter of, for example, about 5 to 10 cm, and are randomly accommodated in such a manner that the vegetables V of the leafy vegetables overlap each other in a manner. After the storage of the vegetable V of the leafy vegetables is completed, the upper end of the closed bag body 22 is opened.

The closed state of the bag body 22 is as shown in Figs. 8 and 9. The closing of the opening of the bag body 22 is performed by forming the fourth closing portion 32. The fourth closing portion 32 is formed by, for example, thermocompression sealing, and is formed at an angle substantially perpendicular to the third closing portion 28.

Further, the fourth closing portion 32 is disposed at a position slightly below the upper end of the bag body 22, and an ear portion (belt) 34 is provided at the upper end of the fourth closing portion 32. Further, in the present embodiment, a pair of arc-shaped corner seal lines 36a and 36b are provided at both ends of the fourth closing portion 32. These corner sealing lines 36a and 36b are formed by thermocompression sealing lines, similarly to the above-described sealing wires 30a and 30b.

One of the corner sealing lines 36a is formed by connecting the left end side of the fourth closing portion 32 and the first closing portion 24, and the other corner sealing line 36b is connected to the right end side of the fourth closing portion 32. The second closing portion 26 is formed between.

As described above, after the fourth closing portion 32 and the corner sealing lines 36a and 36b are formed, as shown in Figs. 8 to 10, the fourth closing portion 32 is formed as a common bottom edge. The first and second approximate triangles a, b (because the arc-shaped demarcation lines 36a, 36b are slightly triangular) between the oblique and bottom edges of the triangle, and the third The closure portion 28 is a third and fourth substantially triangular c, d of one of the common base edges (because Between the oblique side and the bottom side of the triangle, arc-shaped corner sealing lines 30a, 30b are arranged, which are slightly triangular).

The substantially triangular shapes a to d form a tetrahedral shape in which the oblique sides are connected to each other in the circumferential direction, and the air is sealed with the vegetable V of the leafy vegetable of the packaging object to form the package body 20.

In the case of the package 20 configured as described above, as shown in Fig. 8, the first and second closing portions 24, 26 are located on the substantially vertical lines of the first and second substantially triangular shapes a and b, and are sealed by the heat pressing or the heat sealing. The wire serves as an opening portion for tearing of the package body 20.

Fig. 11 shows a state in which the first and second closing portions 24 and 26 are used as the opening portion and the package 20 is torn along the sealing line. In the present embodiment, in order to make the tearing operation easier, a notch 38 on the extension line of the closing portions 24, 26 is provided at the center of the ear portion (belt) 34.

The first and second closing portions 24 and 26 are respectively torn to the positions of the corner sealing lines 30a and 30b, and as shown in Fig. 11, the third and fourth substantially triangular c and d are used as the base. The circumference forms the shape of the ship on the side of the rise. The side surface at this time is formed by dividing the first and second substantially triangular shapes a and b into two halves on a substantially vertical line.

At this time, the vegetable V of the leafy vegetables contained in the package 20 is located in the ship type, and since the upper part of the ship type is open, it has the function of a ship type disk, and can directly eat vegetables. Further, according to the package 20 having the configuration shown above, the vegetable V in which the leafy vegetable V such as lettuce or spinach is enclosed together with the air is provided with the sealing line 30a at each corner of the tetrahedron. , 30b, 36a, 36b, leafy vegetables V will not invade easily damaged corners As a result, the freshness of leafy vegetables can be maintained for a long time.

Further, according to the package 20 having the above configuration, when the bag body 22 having one side is opened, the first closing portion and the second closing portion 24, 26 formed by the heat sealing lines of the opposite sides of the four sides are formed. When the fourth closing portion 32 is in the shape of a tetrahedron, it is located on the perpendicular line of the two first and second substantially triangular c and d. As a result, the heat sealing line can be used as the opening portion for tearing.

Further, the package body 20 having the above-described configuration is a vegetable V which is a leafy vegetable such as lettuce or spinach, and is enclosed in a package body 20 having a tetrahedron as a basic shape, since the tetrahedron does not have parallel or opposite faces. When the external force is applied, the external force can be dispersed, and when it is sealed in the box-shaped package, since the external force does not directly act on the vegetable V of the leafy vegetables, the vegetable of the leafy vegetable can be prevented from being damaged.

In addition, in the case of the package body 20 which consists of the above, the vegetable V which is the leafy vegetable of lettuce, spine, etc. is the object to be packaged, and it is enclosed in the package body 10 which is a tetrahedron as a basic shape, and the adjacent vegetables are enclosed with air. The inner surface of the vegetable and the inner surface of the bag body 12 is interposed between the air layers. When the external force is applied, the air layer has the function of a cushion, so that the damage of the vegetables can be avoided.

Further, in the above embodiment, the case where the sealing lines 30a, 30b, 36a, and 36b are arc-shaped is taken as an example. However, the sealing lines may be dotted lines as shown in FIGS. 6 and 8 Straight line. Further, the blank portions on the outer sides of the respective corner seal lines 30a, 30b, 36a, and 36b indicated by broken lines in Figs. 6 and 8 may be cut along the seal line or may be retained. In addition, the packaging object is described for the vegetable of leafy vegetables, however, it is not limited by For example, it may be easily damaged by foods such as potato chips and groceries such as beans.

The package body of the invention can realize the easy opening of the package body without using special means by using the sealing part which is necessary for forming the bag body, not only can reduce the manufacturing steps and costs, but also can further improve the value of the package body, and can be widely used. Applied to the industry.

1‧‧‧ bag body

2‧‧‧1st closure

3‧‧‧2nd closure

4‧‧‧3rd closure

5‧‧‧4th closure

6‧‧‧Package

11, 12‧‧ ‧ Reinforcement Department

13‧‧‧With

14‧‧‧ gap

16, 17‧‧‧ bevel

Fig. 1 is a view showing an example of a bag body used in the package of the present invention.

Fig. 2 is a side view showing the two different directions of the package of the present invention.

Figure 3 is a perspective view of the package of the present invention.

Fig. 4 is an explanatory view showing the unsealed state of the package of the present invention.

Fig. 5 is an explanatory view showing an embodiment of the present invention.

Fig. 6 is a view showing another embodiment of the bag body used in the package of the present invention.

Fig. 7 is an explanatory view showing the case where vegetables are placed in the bag shown in Fig. 6.

Figure 8 is a side view of the package shown in Figure 6.

Figure 9 is a side view of the package in different directions as shown in Figure 6.

Figure 10 is a perspective view of the package shown in Figure 6.

Fig. 11 is an explanatory view showing the unsealing state of the package shown in Fig. 6.

2‧‧‧1st closure

3‧‧‧2nd closure

4‧‧‧3rd closure

5‧‧‧4th closure

Claims (2)

A package body is a first closed portion and a second closed portion that are closed by two sides of a pair, and is formed between the first closed portion and the second closed portion and is another a third closing portion or a bent portion that closes one of the two sides of the pair is closed to the three sides, and the remaining one side is in a state in which the object shape of the four corners of the opening accommodates the object to be packaged. A package having a four-sided three-dimensional shape formed by substantially closing the fourth closed portion or the fourth closed portion of the bent portion to close the opening, and having an opening easy portion positioned above the opening In the central portion of the upper portion of the fourth closed portion, when the package having the four-sided three-dimensional shape is unsealed, the first open portion is torn from the open portion through the fourth closed portion. 1 and the second closing portion, wherein the first and the second closing portions are respectively used as an opening portion of the package having the four-sided three-dimensional shape, and are opened by the first closing portion and the second closing portion When the aforementioned four Experience three-dimensional shape of the packaging is deployed, and is housed in a state of the object to be wrapped by the package three-dimensional shape of the deformed shape of the boat package. The package according to claim 1, wherein the first and the second closed portions are formed by a heat seal line.