KR101132265B1 - Package 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

Packing body {PACKAGE BODY}

The present invention relates to a package, and more particularly to a package that can be easily opened.

Generally, many products are packaged in a rectangular bag, and the contents can be taken out by opening one side of the bag. The opened bag is still rectangular and functions as a packaging material until the contents are exhausted. On the other hand, a tetrahedral-shaped packaging material in which the direction of one side is orthogonal to the direction of the opposite side is known as a so-called tetra-shaped packaging material (trade name: Tetra Pak).

There are many patent applications for packaging materials. For example, Patent Document 1 describes a food packaging bag in which opening is easily formed by forming a bypass portion projecting upward on a tear line for opening and opening the bypass portion left and right after opening. In addition, Patent Document 2 describes a structure that facilitates opening by interposing an adhesive material between the body of the packaging bag and a lid.

On the other hand, for facilitating opening, for example, Patent Document 3 describes a tubular packaging material provided with a contact portion having a constant width tear property (torn and cracked), and Patent Document 4 describes The packaging material excellent in the tearability which laminated | stacked and laminated | stacked a recessive film on another film is described. However, these packaging materials have technical problems described below.

Patent Document 1: Japanese Patent Laid-Open No. 2005-138899

Patent Document 2: Japanese Patent Application Laid-Open No. 2000-264348

Patent Document 3: Japanese Patent Laid-Open No. 2000-153871

Patent Document 4: Japanese Patent Application Laid-Open No. 9-30559

That is, the above-mentioned conventionally known packaging material adds a special shape to the perforation line in order to facilitate opening, interposes an adhesive material between the main body and the lid of the packaging bag, or provides a constant width tearing contact portion, This was ensured by a special structure or structure in which a tearable film was sandwiched by sandwiching another film. However, in such a means, there is a problem in that the configuration and structure become complicated and cost and labor are required.

The present invention has been made under such a situation, and its object is to produce a bag having one end, which is made in the process of accommodating a packaged object, without using any special means by using a sealing part as a tear opening guide. It is providing the package which becomes easy to open.

In order to achieve the above object, the present invention provides a package object in a bag having two pairs of opposite sides and one of the two opposite sides being closed by the first to third sealing parts, and the remaining one side being opened. A four-sided three-dimensional package formed by sealing the opening by forming a fourth sealing portion that is substantially orthogonal to the third sealing portion in a state of accommodating the first and second sealing portions for tearing the package. It was made a guide.

According to the package of the above constitution, the first sealing portion and the second sealing portion formed on the two opposite sides when forming the bag having one side open are used as tear guides for tearing the package, so that the package is opened without any special means. This is easily done.

The first and second seals may be configured as heat seal lines. The said package body has the 1st, 2nd triangle which makes the said 4th sealing part a common base, and the 3rd, 4th triangle which makes the said 3rd sealing part a common base, and the inclination edges of each said triangle adjacent to the circumferential direction It is formed in the shape of a connected quadrangular cube, it is possible to position the first, second sealing portion on the vertical line of the first, second triangle. When the package body is opened through the tearing opening guide, the package body may be in a mold shape in a state in which the package object is accommodated, and the extended shape, that is, the spread mold shape, is a container for holding contents. If the contents are food, it functions as a plate that can be held. The said package body can form the opening part which consists of a notch part, a cut line, a hole, etc. which are located in the center part of the said 4th sealing part, and located on the extension of the said opening guide part.

The package may be formed of a material having a small ultraviolet ray transmission amount. The package object may be anything in principle, but may be a vegetable such as lettuce or spinach.

The package body may be filled with air together with the package object to form a corner-pull seal line at each corner of the package body. The corner pull seal line may be formed in an arc or straight line shape connecting the first and second seals and the third and fourth seals.

Effect of the Invention

According to the package of the present invention, since the first sealing portion and the second sealing portion formed on two opposite sides when forming the bag having one side open are used as tearing-opening guides of the package, packaging without special measures is taken. Easy opening of the sieve. In addition, in the package according to the present invention, not only the packaging function of the article, but also the packaging material is rolled into a mold when the package is filled with the contents, and the resulting mold functions as a container of the contents. If the contents are food, the mold is a kind of dish that can be eaten there. The package of the present invention not only functions as a package but also functions as a container for holding or holding the contents.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows an example of the bag used for the package of this invention.

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

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

It is explanatory drawing of the state which opened the package of this invention.

5 is an explanatory diagram showing an embodiment of the present invention.

It is a figure which shows another Example of the bag used for the package of this invention.

It is explanatory drawing at the time of putting a vegetable in the bag shown in FIG.

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

Fig. 9 is a side view of the package shown in Fig. 6 in another direction.

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

It is explanatory drawing of the state which opened the package shown in FIG.

<Explanation of symbols for the main parts of the drawings>

1: bag 2: first seal

3: second seal portion 4: third seal portion

5: 4th sealing part 6: package

11, 12 reinforcement 13: strip

14: cut 16, 17: slope

EMBODIMENT OF THE INVENTION Below, this invention is demonstrated based on embodiment. However, it is not limited to these. 1 to 5 show one embodiment of the package according to the present invention, and FIG. 1 shows a rectangular bag 1. The side AB is opened and the other side is sealed. Usually, the contents are introduced from the opening of A-B, and then A-B is sealed to form a package. In contrast, the present invention does not seal A-B as it is, but joins the edges A and B so that the directions of the sides A-B and the directions of the sides C-D are substantially orthogonal, and are sealed in this state. It is widely known as a so-called tetra-shaped packaging material, and there are tetrapack etc. as a brand name.

The side AC is the 1st sealing part 2, the side BD is the 2nd sealing part 3, These sealing parts 2 and 3 are formed with a folded line, a heat seal line, a cut line, etc. . The side C-D is the 3rd sealing part 4, and the part sealed at the angle orthogonal to the side C-D becomes the 4th sealing part 5 mentioned later. Although this invention is demonstrated centering on a rectangular wrapping bag, the shape of a bag is not limited to a rectangle and may be trapezoidal.

In Fig. 1, sides A-C and sides B-D are first sealing portions, second sealing portions 2, 3 each formed of a folded line, a heat seal line, a cut line, and the like. Corners A and B become corner portions at both ends of the upper side. In addition, the sealing line of the 1st sealing part 2 and the 2nd sealing part 3 becomes a tear guide as mentioned later. Opening portions such as cutouts, perforations, holes, and the like may be formed at portions joined and sealed by matching the edges A and B, and reinforcement portions such as heat fusion and reinforcement may be formed around the edges C and D. FIG.

As shown in FIG. 2, the openings are sealed by joining the corners A and B so that the directions of the sides A-B and the sides C-D are substantially orthogonal. This seal becomes the fourth seal 5. When the edges A and B are aligned and sealed so that the direction of the side AB and the direction of the side CD are substantially orthogonal, H and H '(face side), which are the center points of the side AB, become corners. The corner A of and the original corner B (face side) become the center point of the side H-H '. The strip | belt 13 is provided from this edge | side H-H 'toward the lower edge D, and the edge | side G-G' which is the lower part of the strip | belt 13 can also be sealed.

In FIG. 2, J is the midpoint of the lower band 13 and J 'is the midpoint of the lower side of the band 13. As a result, the side A-B becomes a state orthogonal to the side C-D, and becomes a tetrahedral package. That is, a pair of first triangles GG'C and second triangles GG'D having the side G-G 'which is the fourth sealing part 5 as a common base is formed, and the third seal is formed. A tetrahedral pavement formed by forming a pair of third triangle (CDG) and fourth triangle (CDG ') having the side (CD), which is the side (4), as a common base, and connecting the triangular inclined sides adjacent to each other in the circumferential direction. Sieve. The perspective view of the tetrahedral package 6 is shown in FIG.

Fig. 2 (a) is a view seen from the original ABDC plane side, and Fig. 2 (b) is a view seen from a 90 degree rotation from the original ABCD plane. Since the package 6 has a tetrahedral structure, the package 6 is resistant to external pressure, and a transparent material is used as the material for forming the bag 1, so that the contents can be easily seen. Nitrogen or carbon dioxide can be enclosed in the package 6 as needed, and the deterioration of the freshness of a content can also be prevented.

As a material of the bag 1, a resin film or a resin sheet can be used. As the resin, polyolefins such as polyethylene and polypropylene, polyester, polyamide, polycarbonate, polystyrene, polyvinyl chloride, polyvinylidene chloride, copolymers of ethylene and vinyl alcohol (trade name: Eval et al.) And the like can be used. Moreover, it can also be set as a double, triple (multiple) laminate as needed. Moreover, in order to reduce the transmittance | permeability of an ultraviolet-ray, the resin which added the ultraviolet absorber can be used.

In the tetrahedral shaped package 6 shown in FIG. 3, the first and second seals 2 and 3 carried out to form the bag 1 have a common bottom (GG ′) as the fourth seal 5. It is located on a substantially vertical line of the pair of first triangle GG'C and the second triangle GG'D. The first and second seals 2 and 3 serve as tearing opening guides of the package 6. When opened (tear) along this opening guide, it becomes a thing of the mold shape as shown in FIG.

The length of the mold is 2h, and the height (depth) is t, the t, and t at the center of the mold, and the depth is less than t depending on the expansion of the mold. Plate shape). In addition, h is the length of the bag 13 minus the width d of the band 13 as shown in FIG. 1, d is the width of the band 13, and t is 1 / the width of the bag bag ABDC width. 2 size. The part of the strip | belt 13 becomes a part of a mold, and contributes to shape retention of a mold, and is convenient also for holding a container. The mold shape produced here has a function as a kind of container by keeping the contents in the mold as it is. This mold has a function as a kind of tableware, for example, a plate. For example, if the contents are something like a lettuce that has already been cleaned and cut to a suitable size, then the lettuce is kept in the mold's container (opening) after opening the package, with the appropriate dressing on the lettuce and the mold instead of the dish. Can be used as a food.

In the mold, the edges C, D of the original bag ABDCD are located at the top center of the mold. If this part is left as it is, the shape of the mold becomes unstable, so it is preferable to reinforce the C and D peripheral parts in advance. That is, the reinforcement part shown by 11 and 12 is formed in FIG. In the present embodiment, triangular reinforcement portions 11 and 12 are formed around edges C and D. FIG. These reinforcement parts 11 and 12 may fuse the whole triangular surface substantially, or may fuse only the triangular inclination edge parts 16 and 17 as shown. Moreover, the reinforcing material of a sheet or a film can also be attached to the reinforcement parts 11 and 12. FIG. In the case of this embodiment, the package object is not specifically limited.

As described above, after sealing along G and G 'in the original rectangular bag, the package is opened (teared) along the opening guides A-C and B-D when the contents are used. The 1st sealing part 2 of the side A-C of the packaging bag ABDC, and the 2nd sealing part 3 of the side B-D consist of a folded line, a seal line, a cut line, etc., and these become an opening guide. It is preferable to process the edge | side A-C and edge | side B-D used as an opening guide in advance so that it may be easy to open (tear).

For example, it is preferable to make the opening (tear) easy by making the folds on the edges A-C and B-D strong, thermocompression sealing at low temperature, or forming linear pores such as cut lines. In addition, as shown in FIG. 5, the first and second opening guides are formed at the center of the edge H-H 'so as to be easily opened (tear) along the tear guide edge AC and the edge BD. It is preferable to form the cut 14 and other cutout lines, holes, etc. which are located on the extension of the 2nd sealing part 2, 3, and are located in the edge part of the strip | belt 13, for example.

delete

By the way, in the package 6 comprised as mentioned above, when forming the bag 1 which opened one side, the 1st sealing part and the 2nd sealing part 2 and 3 are formed in the two opposite sides of four sides. The sealing parts 2 and 3 form the fourth sealing part 5 to form a tetrahedral shape so that the sealing parts 2 and 3 are positioned on the vertical lines of the two first and second triangles GG'C and GG'D. As a result, these 1st sealing parts and 2nd sealing parts 2 and 3 can be used as a tearing opening guide. That is, in the present embodiment, by using the first and second seals 2, 3 necessary for forming the bag 1, the package 6 can be easily opened without special measures. It becomes possible.

6 to 11 show another embodiment of the package according to the present invention. 6 shows the bag 22 used for the package 20 of the present embodiment. The bag 22 is formed into a rectangular shape obtained by bending a single thin film or sheet to a lower end and polymerizing the first and second sealing parts 24 and 26 on a pair of two opposite sides (sides). have.

As the material of the bag 22, a transparent, translucent, colored resin film or resin sheet can be used as in the above-described embodiment, and if necessary, a double or triple laminate can be used, and the UV transmittance can be reduced. The resin which added the ultraviolet absorber for that purpose can be used.

In the present embodiment, the first and second sealing portions 24 and 26 are formed by a heat seal line in which end faces of the film (sheet) are welded by cutting the film (sheet) with a hot blade. The sealing portions 24 and 26 may be heat seal lines of a form in which the surfaces of the films are thermally compressed in place of the heat seal lines of the cross sections.

The bag 22 has a third sealing portion 28 formed of a bent line on one side (lower end) of the remaining two sides, and the remaining one side (upper side) is opened. In the present embodiment, a pair of arc-shaped corner pull seal lines 30a and 30b are formed at both ends of the third sealing portion 28. These corner pull seal lines 30a and 30b are comprised by the thermocompression seal line.

One corner pull seal line 30a is formed to connect between the left end side of the 3rd sealing part 28 and the 1st sealing part 24, and the other corner pull seal line 30b is a 3rd sealing part. It is formed so that the right end side of 28 and the 2nd sealing part 26 may be connected.

In addition, the 3rd sealing part 28 may be a sealing line of thermocompression bonding instead of a bending line. When the bag 22 is formed as described above, the package object is introduced into the bag 22 from the upper opening. At this time, as shown in FIG. 7, the opening part is opened by pulling the center portion C of the upper end opening of the bag 22 forward and backward, and bringing both ends A and B close to each other. It opens and a predetermined amount of leaf V is thrown in in this state.

The leaf vegetable (V) is lettuce, spinach, broccoli, sakchae, green beans, cutting vegetables cut | disconnected various leaf vegetables to predetermined | prescribed size, etc., and these vegetables are cut into the diameter of about 5-10 cm, for example. Thus, the leaves (V) are partially polymerized with each other to be accommodated at random. When the acceptance of the leaf (V) is completed, the top opening of the bag 22 is sealed.

The sealing state of the bag 22 is shown in FIGS. 8 and 9. The opening of the bag 22 is sealed by forming the fourth sealing part 32. The fourth sealing portion 32 is formed by, for example, a thermocompression seal line, and is formed at an angle substantially perpendicular to the third sealing portion 28.

In addition, the 4th sealing part 32 is arrange | positioned in the position spaced downward from the upper end of the bag 22, and the back part 34 is provided in the upper end of the 4th sealing part 32. As shown in FIG. do. In the present embodiment, a pair of circular arc-shaped corner pull seal lines 36a and 36b are formed at both ends of the fourth sealing portion 32. These corner pull seal lines 36a and 36b are comprised by the thermocompression-sealed seal line similarly to the said seal lines 30a and 30b.

One corner pull seal line 36a is formed to connect between the left end side of the 4th seal part 32 and the 1st seal part 24, and the other corner pull seal line 36b is a 4th seal part. It is formed so that the right end side of the 32 and the 2nd sealing part 26 may be connected.

When the 4th sealing part 32 and the corner pull seal lines 36a and 36b are formed as mentioned above, as shown to FIGS. 8-10, a pair of agent which makes the 4th sealing part 32 a common base is mentioned. 1st and 2nd substantially triangular triangles a and b (the arc-shaped corner pull seal lines 36a and 36b are interposed between the inclined side and the base side of the triangle, and are represented as substantially triangular), and the third sealing portion A pair of third and fourth substantially triangles (c, d) having (28) as a common base (circular arc-shaped corner pull seal lines 30a and 30b are interposed between the inclined side and the bottom side of the triangle, so this is approximately a triangle). Is represented by.

These substantially triangles a to d are inclined sides connected in the circumferential direction to have a tetrahedral shape, and the leaf body V, which is a package object, is a package 20 in which air is sealed together with air.

In the package 20 configured in this manner, as shown in FIG. 8, the first and second seals 24 and 26 are positioned on substantially vertical lines of the first and second substantially triangles a and b. Then, this thermocompression bonding or hot blade seal line is used as a tearing opening guide of the package 20.

FIG. 11 shows a state in which the package 20 is teared along this seal line with the first and second sealing portions 24 and 26 as the opening guides. In the case of the present embodiment, notches 38 are formed at the center of the teeth 34 and on the extension lines of the seals 24 and 26 in order to further facilitate this tearing operation.

When the first and second seals 24 and 26 are torn to the positions of the corner pull seal lines 30a and 30b, respectively, as shown in FIG. 11, the third and fourth substantially triangular triangles c and d are bottomed. It is set as the mold shape in which the side surface granular at the circumferential edge is formed. The side surface in this case is formed by dividing the first and second substantially triangular triangles (a, b) on an approximately vertical line.

In this case, since the leaf leaf V stored in the package 20 is in the mold and the upper side of the mold is open, it can function as a plate of the mold and the vegetables can be eaten as it is. By the way, according to the package 20 comprised as mentioned above, the package 20 which enclosed leaf vegetables V, such as lettuce and spinach together with air, has the seal wire 30a, 30b for corner pools in each corner part of a tetrahedron, Since 36a and 36b are formed, the corner part which is easy to be damaged by invasion of the leaf vegetable V disappears, and as a result, the freshness of the leaf vegetable can be maintained for a long time.

Moreover, according to the package 20 of the said structure, when forming the bag 22 which opened one side, the 1st sealing part and the 2nd sealing part 24 which consist of two heat seal lines of two sides which oppose among 4 sides are formed. 26 forms the fourth seal 32 to form a tetrahedral shape, it is located on the vertical lines of the two first and second substantially triangular (c, d), and as a result, these heat seal lines are opened for tearing. Can be a guide.

In addition, in the package 20 having the above-described structure, leafs V such as lettuce and spinach are the packaging objects, and when the encapsulated product is enclosed in the package 20 having the tetrahedron as a basic shape, the tetrahedrons do not have parallel or opposing faces. Therefore, when the external force is applied, the external force is dispersed and the external force is not applied directly to the leaf (V) as in the case of enclosing them in the box-shaped package, and damage to the leaf can be reduced.

Moreover, in the package 20 of the said structure, leaf (V), such as lettuce and spinach, is a package object, and since it is enclosed in the package 6 which has a tetrahedron as a basic shape with air, between adjacent vegetables, Since an air layer is interposed between the vegetables on the surface and the inner surface of the bag 1, these air layers function as cushions when an external force is applied, thereby reducing vegetable damage.

Incidentally, the above embodiment exemplifies a case in which the corner pull seal lines 30a, 30b, 36a, and 36b are formed in an arc shape, but each of these seal lines is represented by a dashed line in Figs. 6 and 8, for example. The same straight line can be made. 6 and 8, the outer margin portions of the corner pull seal lines 30a, 30b, 36a, and 36b shown by imaginary lines may be cut off along the seal line and left as they are. In addition, although the object to be packaged was explained in leaf shape, it is not limited to this, For example, as long as it is easy to be damaged, such as miscellaneous goods, such as foods and beads, such as potato chips.

The package of the present invention makes it possible to easily open the package without taking special measures by using the sealing portion necessary for forming the bag, and it is possible to reduce the effort and the cost, and to value the package. Is further used widely in the industry.

Claims (10)

A first sealing portion and a second sealing portion that respectively closes the pair of opposite sides, and a first sealing portion formed between the first sealing portion and the second sealing portion, and the one side of the other pair of opposite sides is closed; The three sealing parts are closed and formed by sealing the opening by providing a fourth sealing part orthogonal to the third sealing part in a state where the object to be packaged is accommodated in a rectangular bag having one side closed. In the four-dimensional solid package, The first seal and the second seal are configured to tear when opening the package, so that the first seal and the second seal are used as the unsealed portions of the package, respectively. The said package body has the 1st, 2nd triangle which makes the 4th sealing part a common base, and the 3rd, 4th triangle which makes the 3rd sealing part a common base, and the inclination edges of each said adjacent triangle are It is formed into a connected quadrilateral cube shape, The package according to claim 1, wherein the first sealing portion and the second sealing portion are positioned on vertical lines of the first and second triangles. The method of claim 1, The said 1st sealing part and the said 2nd sealing part are packaging bodies characterized by consisting of a heat seal line. delete The method according to claim 1 or 2, The package is opened when the package is opened through the first seal and the second seal, and has a mold shape in a state in which the package object is accommodated. The method according to claim 1 or 2, The package is located in the center of the fourth sealing portion, and forms an easy opening portion consisting of cutouts, cut lines, holes, etc., which are located on the extension of the first sealing portion and the second sealing portion. . The method according to claim 1 or 2, The package is characterized in that the package is formed of a material with a small amount of UV transmission. The method according to claim 1 or 2, The package is characterized in that the packaging object is a vegetable such as lettuce, spinach. delete The method according to claim 1 or 2, The package is packaged, characterized in that the air is sealed together with the package object therein to form a corner pull seal line at each corner of the package. The method of claim 9, The corner pull seal line is characterized in that the package is formed in a circular arc or a straight line connecting between the first sealing portion and the second sealing portion and the third sealing portion and the fourth sealing portion.

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