JP2010089806A - Package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a boat shape that can be used as a container for storing contents after opening. <P>SOLUTION: The package stores the contents in a tubular bag 10 the lower end of which is closed by a first seal 16. In this state, an opening at the upper end is closed by a second seal 22. Thereby, the package has the form of a solid that has four sides. A tearing initiation notch 26 is formed in the center of the second seal 22. The bag 10 is formed of a film that is easy to be opened in a direction parallel to a line extended from the notch 26 and substantially orthogonal to the first and second seals 16 and 22. The bag 10 has an easy-to-tear portion 18 on a line extended from the notch 26 which is formed by linearly emitting a high frequency thereto in a direction substantially orthogonal to the first and second seals 16 and 22 of the upper and lower ends. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a package, and particularly to a package that can be easily opened and used as a container after opening.

In general, many products are packaged in a rectangular bag-shaped package, and the contents can be taken out by opening one side of the bag. In addition to such a flat package, for example, a tetrahedral three-dimensional package in which the direction of one side is orthogonal to the direction of the opposite side is provided as a so-called tetra-shaped package (trade name: Tetra Pak). Are known.

For example, when food is contained in these packages, the food inside is usually taken out after opening and placed on another plate for eating.

However, the functions of various packaging bodies proposed so far have been given priority as a packaging material for containing food or the like. Therefore, the applicant of the present application has proposed a package that can be used as a container after opening in Patent Document 1.

In the package proposed in Patent Document 1, a pair of opposing two sides and one of the two opposing sides are closed by the first to third sealing portions, and the remaining one side A packaging body having a four-dimensional shape formed by sealing the opening by providing a fourth sealing portion that is substantially orthogonal to the third sealing portion in a state in which the packaging object is accommodated in the bag body that is opened. In the above, the first and second sealing portions are tear guides for tearing the package.

According to the packaging body configured in this manner, when the four-dimensional solid packaging body is opened along the tearing opening guide, the packaging body has a boat shape (dish shape), and the food contained therein is contained. Can be used as a container. However, the package according to Patent Document 1 has a technical problem described below.
JP 2007-284143 A

That is, in the package according to Patent Document 1, the tearing opening guide is formed from a broken line, a heat-sealed line, a sewing machine line, and the like, and is created in the process of accommodating a packaging object, and a bag body having one end opened is produced. For example, when applying to a tetrahedral three-dimensional package having a configuration in which sealing portions are provided on the upper and lower ends of a cylindrical bag body, opening for tearing is used. Since it is not necessary to form a sealing portion as a guide, there is a problem that it is difficult to form a boat shape when opening.

The present invention has been made in view of such problems, and the object of the present invention is that even when the bag body is formed without providing a sealing portion serving as a tear opening guide in the process of manufacturing the bag body. An object of the present invention is to provide a package that can be surely formed into a boat shape that can accommodate a packaging object such as food when opened.

In order to achieve the above object, the present invention closes the upper end opening with the second sealing portion in a state where the packaging object is accommodated in the cylindrical bag body whose lower end is closed with the first sealing portion. In the quadrilateral three-dimensional package formed, a tear start notch is provided on the center of the second sealing portion, and the bag is in a direction parallel to an extension line of the notch, and The film is made of an easily openable film in a direction substantially orthogonal to the first and second sealing portions at the upper and lower ends.

According to the package having the above-described configuration, the bag is easily opened in a direction parallel to the extension line of the notch and substantially perpendicular to the first and second sealing portions at the upper and lower ends. Since the notch can be easily opened from the notch part, and the notch part is provided on the center of the second sealing part, so that it is torn from the notch part and opened, A boat-shaped container is formed.

According to the package of the present invention, opening from the notch can be easily performed, and when the container is opened by tearing from the notch, a boat-shaped container is formed.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. 1 to 4 show an embodiment of a package according to the present invention. The packages shown in these figures are frozen foods such as cooked or semi-cooked foods, such as meat buns, annman, shumai, dumplings, hamburgers, hot dogs, spaghetti, fried noodles, grilled udon, rice noodles, etc. It has the container main body 10 in which foodstuffs, for example, frozen green soybeans, etc. are stored.

FIG. 1 shows the bag body 10 before the food 12 is introduced. The bag body 10 is provided with a first sealing portion 16 on the bottom side and an easy tear portion 18 on two opposite sides. , A cylindrical shape having an opening 20 on the upper side is provided.

In the case of the present embodiment, the bag 10 has, for example, heat resistance that can withstand heating in a microwave oven, is in a direction parallel to an extension line of a tear start notch portion 26 to be described later, and the first and It is comprised from the film which has easy-opening property (it is also called linear cut property) in the direction substantially orthogonal to the 2nd sealing parts 16 and 22. FIG. In FIG. 1, the direction of easy opening is indicated by a plurality of two-dot chain lines.

Such a film can be provided with easy-openability by, for example, uniaxial stretching in which the stretching direction during film production is controlled, and as disclosed in JP-A-10-114307, The thing of the form which laminated | stacked the film from which tear property differs can be used.

The easy tearing portion 18 is an original fabric state before the bag body 10 is formed, and is irradiated with a high frequency in a line shape to modify the film characteristics, thereby making it easier to tear along the line than other portions. Thus, such properties can be obtained by adjusting the output of the high frequency to be irradiated. In the practice of the present invention, the easy tear portion 18 does not necessarily have to be formed.

Further, for convenience of the following description, each corner of the rectangular bag 10 is denoted as A, B, D, E as shown in FIG. 1, and the center of the opening 20 is denoted as C, C ′.

The bag 10 configured as described above is used as shown in FIGS. 2 to 4 when the food 12 is eaten. In addition, the foodstuff 12 shown to these figures has illustrated frozen green soybeans.

When the food 12 is put into and accommodated in the container body 10, first, as shown in FIG. 2, the centers C and C ′ of the opening portion 20 of the cylindrical bag body 10 are separated from each other so as to be opened. The part 20 is expanded and the food 12 is put inside.

When the food 12 is introduced, next, the corners A and B are brought close to each other so that the corners A and B coincide with each other, and the films of the bag 10 are linearly heat-welded. By forming the second sealing portion line 22, the films are bonded to close the opening 20.

When the bag body 10 is closed in this way, the second sealing portion 22 is orthogonal to the first sealing portion 16 on the bottom side of the bag body 10, and when such a second sealing portion 22 is provided. As shown in FIG. 3, four triangles are formed.

That is, this triangle is a triangle CEC ′ and the same CDC ′ having the second sealing portion 22 as a common base, and a triangle DCE and the same DC′E having the first sealing portion 16 as a common base, and these The four triangles are connected to each other along the circumferential direction of the hypotenuses to form a tetrahedral shape.

In this case, the easy tear portion 18 is on a perpendicular line from the apex of the triangle CEC ′ and the same CDC ′ having the second sealing portion 22 as a common base to the base, and passes through the ear portion 24 to the upper end of the opening 20. Has reached. A cutout portion 26 for starting breakage is provided at the edge of the ear portion 24 where the easy tear portion 18 reaches, so as to be positioned at the center of the second sealing portion 22.

Further, in the case of the present embodiment, as shown in FIG. 3B in which the a part in FIG. 3A is enlarged, a predetermined gap d is provided inside the second sealing part 22. The break stop seal line 30 is provided.

The break stop seal line 30 is formed by thermal welding similarly to the second sealing portion 22, and in the case of the present embodiment, the center is located on the easy tear portion 18 and extends in the left-right direction. The total length is, for example, about 10 mm. When such a break stop seal line 30 is provided, the gap d between the second sealing portion 22 and the break stop seal line 30 becomes the inner and outer communication holes 32.

For example, when the packaging body configured as described above is heated in a microwave oven, the bag body 10 is partially broken in order to communicate the inside and outside of the bag body 10.

In the case of this breakage, in the case of the present embodiment, first, the bag body 10 is torn from the notch portion 26, the broken portion is extended along the easy tear portion 18 to the inner side of the bag body 10, and the second sealing portion 22. After being broken, it is fastened to the breaking stop seal line 30.

In such a state, when the bag body 10 is put into the microwave oven and induction heating is performed, a part of the steam generated from the food 12 is released to the outside from the inner and outer communication holes 32, and While preventing internal pressure from escaping and preventing breakage, heat diffusion is prevented, and the food 12 is heated in a state in which a predetermined pressure is applied, thereby preventing fragrance from spreading.

When the heating is completed, the bag body 10 is further broken from the easy tearing portion 18 thereafter. In this case, for example, if the easy tearing part 18 is sandwiched between the left and right fingers and torn, the triangle CEC 'and the CDC' are each in a halved state.

When the triangle CEC ′ and the CDC ′ of the tetrahedral three-dimensional bag body 10 are in a half-split state, the bag body 10 includes two triangles DCE having the first sealing portion 16 as a common base, as shown in FIG. The rough rhombus shape connecting DC'E becomes the base, and the shape of the container (boat-shaped boat shape) in which four triangles that divide the triangle CEC 'and the CDC' into the halved state rise on the side edge. The foodstuff 12 is accommodated in the container shape and can be eaten.

Now, according to the packaging body having the above-described configuration, the bag body 10 is easily oriented in a direction parallel to the extension line of the notch portion 26 and in a direction substantially orthogonal to the first and second sealing portions 16 and 22. Since it is composed of a film having an opening property, it can be easily opened from the cutout portion 26 and the cutout portion 26 is provided on the center of the second sealing portion 22, and is torn from the cutout portion 26. Thus, when the bag body 10 is opened, a boat-shaped container is formed.

In the case of the present embodiment, the bag body 10 is on the extension line of the tear start notch 26 and linearly transmits the high frequency in a direction substantially orthogonal to the first and second sealing portions 16 and 22. Since the easy tearing part 18 irradiated to is provided, a boat-shaped container can be formed more reliably.

In the above embodiment, the present invention is applied to a packaging body in which frozen green soybeans are stored and heated in a microwave oven as an object to be packaged, but the implementation of the present invention is limited to this. The packaging object is applicable to various foods and is not limited to foods to be heated.

Since the package according to the present invention can be suitably used when thawing frozen food and the like and eating it, it can be effectively used in this type of field.

It is a top view before use of the bag of the package concerning the present invention. It is explanatory drawing at the time of accommodating a foodstuff in the bag body of FIG. It is explanatory drawing of the state which accommodated the foodstuff in the bag body shown in FIG. 1, and obstruct | occluded the opening part. It is the a section enlarged view of Drawing 3 (A). It is explanatory drawing of the state which opened the bag body from the state shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bag 12 Food 16 First sealing part 18 Easy tear part 20 Opening part 22 Second sealing part 26 Notch part 32 for tearing start Breaking stop seal line

Claims (1)

In a four-dimensional solid packaging formed by closing the upper end opening with the second sealing portion in a state where the packaging object is accommodated in the cylindrical bag body whose lower end is closed with the first sealing portion,
A tear start notch is provided on the center of the second sealing portion, and the bag body is in a direction parallel to an extension line of the notch, and the first and second seals at the upper and lower ends. A package comprising a film having easy-openability in a direction substantially perpendicular to the stopper.

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