KR100590734B1 - Packing bag for microwave oven and manufacturing method of packing body filled with contents therein - Google Patents

Abstract

The present invention automatically removes steam generated inside a packaging stand when the packaging stand filled with contents such as liquids, solids, or retort foods consisting of a mixture thereof is heated in a microwave oven. The present invention relates to a microwave oven packaging stand capable of preventing rupture, deformation and scattering of contents.

The present invention provides a microwave oven packaging stand provided with a steam extracting seal portion having a weakening portion, wherein no interface peeling occurs at the steam extracting seal portion of the plastic laminated film constituting the packaging stand, without increasing the cost. To be a task,

In order to solve the problem, the plastic lamination film is sealed by heat sealing, and at least one steam extracting seal is provided in a microwave oven packaging table, wherein the vapor extracting seal portion is an outer seal portion, a buffer portion adjacent to the outer seal portion, And a weakening portion provided in the buffer portion.

Therefore, according to the present invention, the bag can be automatically opened in a predetermined weakening part and can be prevented from being torn, and it is possible to manufacture a packing stand for a microwave oven without involving special materials or complicated processes, and is necessary for retort sterilization. The seal strength can be sufficiently secured, the heat decay effect can be obtained by maintaining sufficient internal pressure, the taste of the contents can be improved, and the cooking time can be shortened.

Description

Packing bag for microwave oven and manufacturing method of packing body filled with contents therein}

1 is a view showing an example of a packing box for a microwave oven according to the present invention.

It is a figure explaining the state of the stress concentration at the time of the heating of the packing table of FIG.

FIG. 3 is a cross-sectional schematic diagram illustrating a state of breaking open of the steam extracting seal portion of the packing table of FIG. 1. FIG.

4 is a partially enlarged view showing a heat seal bar used to form a vapor extraction seal in a microwave oven packaging table.

5 is a view showing an example of a packaging box for a microwave oven to be improved in the present invention.

It is a figure which shows the other example of the packaging box for microwave ovens of this invention.

It is a figure which shows the other example of the packing box for microwave ovens of this invention.

* Description of the sign *

1: packing stand 2: circumferential seal

3: outer seal portion 4: shock absorbing portion

5: weakening part 6: steam extraction seal part

7: notch 8: bottom cutout

9: sewing eye 11: heat-sealing head

12: heating part 13: groove

14: day

The present invention automatically removes steam generated inside a packaging stand when the packaging stand filled with contents such as liquids, solids, or retort foods consisting of a mixture thereof is heated in a microwave oven. The present invention relates to a microwave oven packaging stand capable of preventing rupture, deformation and scattering of contents.

When a packaging stand filled with retort foods and frozen foods is heated in a microwave oven, the pressure inside the bag rises due to water vapor generated from the contents as the heating causes the packaging stand to rupture, and the contents are scattered. There is a risk of dirtying the inside of the body and causing harm such as burns to the human body.

For this reason, before heat-cooking such a packing stand in a microwave oven, water vapor etc. which generate | occur | produce in the packing stand are discharged to the outside by opening the packing stand partially or making a hole in the packing stand main body, The method of preventing tearing is used.

However, this method is disadvantageous for the general consumer, and at the same time, since steam generated by microwave heating is immediately discharged to the outside of the packaging box, there is a drawback that the steaming effect caused by the steam is reduced and the taste is reduced.

In addition, in order to automatically avoid an increase in the pressure resistance of the packing table during microwave heating, (1) a weak seal portion is formed in a part of the heat seal part through a thin film, and a narrow seal part having a narrow heat seal width is formed in a part of the weak seal part. (2) A weak adhesive part is provided in a part of the installed packing stand (JP-A-10-59433) and (2) the heat sealing part, and the non-sealed part which narrows the width | variety of the weak adhesive part toward the inside from the edge of the said weak adhesive part was formed. Packing table (Japanese Patent Application Laid-Open No. 10-95471), (3) Packing table provided with a non-sealing portion having a locally narrowed seal width and a corresponding inner expansion seal portion in a part of the sealing portion. And (4) a packing stand (Japanese Patent Application Laid-Open No. 10-95470), which is formed by narrowing a heat-shrinkable film that forms an opening during heating in a part of the opening part, has been proposed.

However, these conventional packaging stands require a complicated process to form an opening portion, which leads to an increase in cost, and at the same time, the sealing strength of the opening portion is reduced, so that the sealing strength required for the retort food packaging stand (2.3 kg) / 15 mm width or more) cannot be obtained, and there is a problem in that the opening preliminary part and the circumferential seal part are torn at the time of retort, or the contents to be filled are limited. In addition, there is a drawback that tearing occurs during transport and storage after filling, so that sealability cannot be maintained.

MEANS TO SOLVE THE PROBLEM The present inventors find out that the problem of these prior arts is solved by providing the vapor extraction seal part which has weakening parts, such as a through hole, a semi through hole, and a slit, on the package which seals by sealing a plastic film first. And filed as Japanese Patent Application No. 2001-254521.

However, as a packing table provided with such a steam extracting seal portion having a weakening portion, when forming a weakening portion such as a through hole, a semi through hole or a slit in the steam extracting seal portion, the steam extracting seal made of a laminated film due to the impact at the time of processing. The interface which does not participate in a negative seal can peel. When such interfacial peeling occurs, the peeling interface gradually expands as the pressure resistance increases when the packaging table is heated in a microwave oven, causing local material extension, causing the peeling stress to disperse, and before the packaging table automatically opens at the steam extraction seal. It may tear from the circumferential seal part (refer FIG. 5A and 5B).

Accordingly, the present invention provides a microwave oven packaging stand provided with a steam extraction seal portion having a weakening portion, wherein an interface peeling does not occur at the steam extraction seal portion of the plastic laminated film constituting the packaging stand. It aims to provide without raising.

In this invention, in order to solve the said subject, the following structures are employ | adopted.

1. A microwave oven packaging wherein a plastic laminated film is sealed by heat sealing and provided with at least one vapor extraction seal, wherein the vapor extraction seal is an outer seal, a buffer adjacent to the outer seal, and the buffer. A microwave oven packing stand, which is constituted by a weakening unit installed in a part.

2. The packaging stand for a microwave oven according to 1, wherein the shock absorbing portion is formed by an unsealed portion (unsealed portion) or a weak seal portion.

3. The microwave packaging stand according to 1 or 2, wherein the weakening portion is formed by providing a through hole, a half through hole, or a slit in the buffer portion.

4. The packaging stand for a microwave oven according to any one of 1 to 3, wherein the steam extracting seal part is set separately from the circumferential seal part of the packing stand.

5. The packaging stand for a microwave oven according to any one of 1 to 3, wherein the steam extracting seal portion is connected to the circumferential seal portion of the packaging stand.

6. The microwave breaker according to any one of 1 to 5, wherein the initial breaking point of the steam extracting seal portion is provided on or on the circumference of a circle inscribed at the center of the inner end of the perimeter seal portion of the two short sides of the packing table. Packing stand.

7. The packing stand for a microwave oven according to any one of 1 to 6, wherein the seal strength of the outer seal portion of the circumferential seal portion and the steam extracting seal portion is 2.3 kg / 15 mm or more.

8. The packaging stand for a microwave oven according to any one of items 1 to 7, wherein a spout forming means is provided near the steam extracting seal part.

9. The packaging stand for a microwave oven according to any one of 1 to 8, wherein the packaging stand is a standing pouch.

10. The packaging stand for a microwave oven according to any one of 1 to 9, wherein a laser processing is performed at a place where the packaging stand is to be opened.

11. When manufacturing the microwave oven packaging stand of any one of 1-10, the manufacturing method of the microwave oven packaging tray characterized by simultaneously forming the outer seal part of a steam extraction seal part, a buffer part, and a weakening part.

12. The method for manufacturing a microwave oven packaging box, wherein the buffer unit and the weakening portion are formed after the outer seal portion of the vapor extraction seal portion is formed when the microwave oven packaging table according to any one of 1 to 10 is manufactured.

13. A method of manufacturing a package in which the contents are filled in the packaging table for a microwave oven according to 1 to 10, wherein the packing of the packaging table and the filling of the contents are continuously performed.

14. A method of manufacturing a package in which the contents are filled in the microwave packaging stand of 1 to 10, wherein the packing of the packaging stand and the filling of the contents are separately set.

[Embodiment of the Invention]

As a plastic laminated film which comprises the packaging stand for a microwave oven by this invention, the plastic laminated film which has the heat sealing property normally used for manufacture of a packaging stand is used. As such a plastic material, the multilayer film which laminated | stacked the thermoplastic resin which has heat sealing property with another thermoplastic resin etc. is mentioned, for example.

As the thermoplastic resin having the heat-sealing property constituting the plastic laminated film, for example, known low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, propylene-ethylene copolymer, ethylene-vinyl acetate copolymer, ethylene-based Olefin resins such as olefin resins graft-modified with unsaturated carboxylic acids or anhydrides thereof, polyamide to copolyamide resins having a relatively low melting point to low softening point, polyester to copolyester resins, and polycarbonate resins. .

As the plastic material laminated with the thermoplastic resin having heat sealability, a thermoplastic resin with or without heat sealability can be used.

Examples of such thermoplastic resins include crystalline polypropylene, crystalline propylene-ethylene copolymers, crystalline polybutene-1, crystalline poly4-methyl pentene-1, low-, medium- or high-density polyethylene, ethylene-vinyl acetate Polyolefins, such as copolymer (EVA), EVA generalization (saponificat) ion, ethylene-ethyl acrylate copolymer (EEA), and ion crosslinked olefin copolymer (ionomer); Aromatic vinyl copolymers such as polystyrene and styrene-butadiene copolymers; Halogenated vinyl polymers such as polyvinyl chloride and vinylidene chloride resin; Polyacrylic resins; Nitrile polymers such as acrylonitrile styrene copolymer and acrylonitrile styrene-butadiene copolymer; Polyesters such as polyethylene terephthalate and poly tetramethylene terephthalate; Various polycarbonates; Fluorine resin; Thermoplastic resins such as polyacetals such as polyoxymethylene. These thermoplastic resins may be used alone or in combination of two or more thereof, and various additives may be used in combination.

The plastic laminated film used by this invention can be obtained by laminating | stacking the unstretched, uniaxial or biaxially stretched film which consists of resin which has or does not have said heat sealing property by a conventional method.

In the present invention, such a plastic laminate film is heat-sealed by a conventional method to form a microwave oven packaging stand. In the case where the film is a laminated film of a thermoplastic resin having a heat sealability and a thermoplastic resin having no heat sealability, the thermoplastic resin layers having heat sealability are heat sealed so as to be the inner surface.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of the packaging box for microwave ovens of this invention is demonstrated according to drawings.

1 to 3 are diagrams showing an example of the microwave packaging stand of the present invention, Figure 1 is a plan view of the packaging stand, Figures 2 and 3 are the internal pressure when the packaging stand of Figure 1 is heated in a microwave oven. It is a figure for demonstrating the state of stress concentration by the rise of. In these figures, the code | symbol 1 shows a packaging stand, and the code | symbol 2 shows a perimeter seal part.

4 is a partially enlarged view showing an example of a tip portion of a heat seal bar used when forming a vapor extraction seal portion on a microwave oven packaging table, a is a longitudinal sectional view of the tip portion, and b is a plan view of the tip portion. .

In this packing table 1, the outer side seal part 3 in the corner part, the buffer part 4 adjacent to the outer seal part 3, and the weakening part 5 by the through-hole provided in the said buffer part 4 are carried out. The circular vapor extraction seal part 6 comprised by () is provided separately from the circumferential seal part 2.

This vapor extraction seal part 6 is formed by forming the donut-shaped outer seal part 3 previously, and providing the through-hole smaller than the unsealed part in the inner unsealed part 4 in that inside. In addition, formation of the steam extraction seal part 6 can be made simultaneously with the formation of the circumferential seal part 2, or separately.

In addition, this steam extracting seal part 6 uses a heat sealing head 11 having a heating part 12, a groove 13, and a blade 14 at its tip, as shown in FIG. It can also form in one process. That is, the outer seal part 3 is formed in the part which contact | connects the heating part 12 of the heat sealing head 11 of the laminated | multilayer film which comprises the packing stand 1, and the part corresponding to the groove | channel 13 The shock absorbing portion 4 of the seal is formed. In addition, the part which contacts the blade 14 becomes the weakening part 5 which penetrates and consists of a through hole.

In the case where the shock absorbing portion 4 is formed by a weak seal portion, for example, a local seal such as a knurling seal, or a sealing method having a seal strength that can be easily peeled off by hand is used. . In the case of a weak seal, contamination of the unsealed portion is prevented, for example, during retort sterilization.

Thus, by providing the buffer part 4 between the outer side seal part 3 and the weakening part 5 of the steam extraction seal part 6, the stress which arises when heating a packaging stand in a microwave oven is weakened part. Since it is applied to the outer seal part 3 without being applied to the end face (through hole surface), the packing stand can be prevented from being torn from the circumferential seal part 2 before automatically opening from the steam extracting seal part 6. .

On the other hand, as shown in FIG. 5A, when the weakening part 5 is formed adjacent to the outer seal part 3 without providing the buffer part 4, it is a laminated film by the impact at the time of a process. The interface which does not participate in the seal of the vapor extraction seal part 6 which becomes, can peel. When such interfacial peeling occurs, the peeling interface gradually expands as the pressure resistance increases when the packaging table is heated in a microwave oven, and the peeling stress is dispersed by local extension of the material, and the packaging table is automatically removed from the steam extraction seal part 6. Before opening, it may tear from the circumferential seal part 2 (refer FIG. 5B).

In the present invention, such a problem can be eliminated, and a packaging box for a microwave oven can be surely automatically opened from the steam extracting seal portion 6.

In addition, as shown in FIG. 1, the steam extraction seal part 6 of this packing stand 1 is the center point P of the circle which inscribes in the center of the inner end of the periphery seal part of the two short sides of a packing stand (Hereinafter, simply, "center point P"). The initial breaking point B of the steam extracting seal 6 is located on a circle R having a radius PA from the center point P of the packaging table to the center of the inner end of the short side of the perimeter of the short side.

Hereinafter, in this invention, the initial breaking point B of the steam extraction seal part 3 means that the opening of a seal part starts in the steam extraction seal part 3 when the packaging stand is heated in a microwave oven.

At the time of heating of the packing stand 1, the packing stand 1 expands toward the circumferential seal part 2 at the center point P by the steam or the like generated from the contents, and as shown in FIG. Stress concentration occurs on the circle R having the distance PA to the inner end as a radius. Because of this stress concentration, the fracture opening of the seal portion 6 starts at the portion B closest to the center point P in the vapor extraction seal portion 6, so this initial fracture point B is the center point P in the vapor extraction seal portion 6. To the nearest point. And the automatic opening at the time of heating is provided more reliably by providing the initial breaking point B of the steam extraction seal | sticker part 6 in the circumferential shape of the circle R inscribed in the center of the inner end of the perimeter seal part of the two short sides of a packing stand. It can be done.

At the time of heating of a packing stand, as shown in FIG. 3, in the steam extraction seal part 6, a breakage of a seal part starts at the initial break point B, and a seal part retreats by stress concentration by the internal pressure rise of a stand | base, and peeling is carried out. When the damping part 5 is reached through the shock absorbing part 4, the packing stand 1 is partially opened, and water vapor etc. can be discharged to the outside, and tearing can be prevented. Moreover, by providing the vapor extraction seal part 3 separately from the circumferential seal part 2, the content of a packing stand can be made larger and the opening property after heating improves.

In addition to heat sealing, the vapor extraction seal portion 6 can be formed by any method such as impulse seal, ultrasonic seal, adhesion with an adhesive or the like.

The weakening part 5 can be formed by providing a semi-through hole or a slit in addition to the through-hole, and also consists of an unsealed part or a weak seal part formed in the outer seal part 3 by laser processing, machining, or the like. It may be formed by partially weakening the buffer part 4. The shape of the vapor extraction seal part 6 and the weakening part 5 is arbitrary, such as circular shape, an ellipse, a triangle, a square shape, a trapezoid, and a rice ball shape, and the dimension can also be selected suitably. Moreover, the notch 7 is provided in the opening position of the circumferential seal part 2 in order to make it easy to open after completion | finish of heating of a packing stand.

6 is a diagram showing an example in which the microwave oven packaging table of the present invention is applied to a standing pouch. In this packing stand 1, the shape of the vapor | steam extraction seal | sticker part 6 comprised by the outer side seal part 3, the buffer part 4, and the weakening part 5 which are provided in a corner part is made into a rice ball shape, and the circumferential seal part ( Separated from 2), it was provided so that the initial breaking point B may be located inside the circle R inscribed in the center of the inner end of the perimeter seal portion of the two short sides of the packing table. In addition, the bottom cutout part 8 provided below has the structure similar to the packaging stand of FIGS.

Fig. 7 is a diagram showing another example in which the microwave oven packaging table of the present invention is applied to a standing pouch. This packing stand 1 is provided with the vapor | steam extraction seal part 6 of a substantially rhombic shape continuously to the circumferential seal part 2 in a corner part. The notch 7 and the missing eye 9 may be provided in the steam extracting seal 6, and after the heating of the packing 1 ends, the packing stand 1 from the notch 7 according to the missing eye 9. Unpack it. The other structure of the packing stand 1 is the same as that of the packing stand of FIG.

Instead of the notch 7 or the sewing eye 9, laser processing may be performed at the expected opening position.

The seal strength of the circumferential seal portion and steam extraction seal portion of the packaging box for a microwave oven according to the present invention can be set to 2.3 kg / 15 mm width or more.

As a conventional packaging stand that is automatically opened at the time of microwave heating, the seal strength of the open portion is significantly decreased during heating, and thus, seal strength of 2.3 kg / 15 mm or more required for the retort food packaging stand cannot be obtained. In the microwave oven packaging table of the present invention, the seal portion itself of the circumferential seal portion or the vapor extraction seal portion is not subjected to the use or processing of a material whose seal strength is lowered at the time of heating, so that the seal strength can be maintained.

As a result, when the retort treatment is performed after the contents are filled in the packing table, no tearing occurs at the vapor extraction seal portion or the circumferential seal portion, and the tearing during transportation or storage can be prevented.

In addition, even when heating in a microwave oven, the steam extraction seal portion maintains the seal strength for a predetermined time, the internal pressure in the package is kept high by water vapor, and the heating steaming effect can be obtained, thereby improving the taste of the contents. Not only that, but also a remarkable effect that the cooking time can be shortened.

EXAMPLE

Next, although an Example demonstrates this invention further in detail, the following specific example does not limit this invention.

(Example 1)

In order from the outer layer, 12 micrometers silica deposited biaxially stretched polyester film, 15 micrometers biaxially stretched nylon film, and 70 micrometers polypropylene film (block type) were rolled by dry lamination using a polyurethane adhesive. The laminated body of the phase was produced.

The laminate is mounted on a umbilical cord (envelope manufacturer), the polypropylene layer is placed inwards, the laminates are stacked together, and the pouch short side circumference is sealed, and the pouch long side circumference is sealed and steam is extracted at a predetermined position. Sealed. The vapor extraction seal | sticker part was provided in the position shown in FIG. 1 in the shape of the donut shape of 12 mm of outer diameters, and 4 mm of inner diameters (unsealed inside 4 mm of inner diameters).

Next, a weakening portion was formed by providing a through hole having a diameter of 2 mm in the center of the unsealed portion inside the steam extraction seal portion using a punch and a die. Furthermore, laser processing was performed to the front and back of the part which abuts on the opening part, and I type notch processing (7 and 7 of FIG. 1) was performed to both ends of a laser processing. By this method, a standing pouch having a short side 130 mm x a long side 170 mm x a bottom cut width 36 mm (dimensions: 118 mm x 155 mm) was produced.

(Comparative Example 1)

In Example 1, the shape of the vapor extraction seal part was made circular (without the unsealed part) of an outer diameter of 12 mm, and the external part which formed the weakening part by providing the through hole of diameter 4mm in the center part of this vapor extraction seal part is implemented. A standing pouch was produced as in Example 1.

100 bags were prepared by filling and sealing 220 g of curry in the standing pouches obtained in Example 1 and Comparative Example 1 and retort sterilization at 120 ° C. for 30 minutes. The obtained curry filling pouch was heated in a microwave oven with a rated output of 600 W, and the presence or absence of the automatic opening of the steam extraction seal part and the state of the circumferential seal part were observed. The results are shown in Table 1.

Automatic opening Separation of steam extraction seal Retraction, tear of circumferential seal part Example 1 Comparative Example 1 100/100 98/100  0/100 10/100 No retraction, no tear Some retraction, no tear

According to Table 1, in the pouch of Example 1 provided with a cushioning portion inside the steam extracting seal portion, after the internal pressure of the microwave heating furnace became high and the bag swelled, there was no retreat of the circumferential seal portion and the internal pressure was released from the steam extracting seal portion. We were able to cook contents without being torn. In addition, the seal strength of the steam extracting seal portion was high, and the contents were cooked in a short time compared to the pouch without the automatic opening mechanism, and a good taste was obtained by the steaming effect.

On the other hand, in the pouch of the comparative example 1, the vapor extraction seal | sticker part peeled off or the retraction and tearing of the circumferential seal part were seen before the internal pressure fell by automatic opening.

Moreover, the seal strength of these pouches was an average 4.1 kg / 15 mm of both a circumferential seal part and a vapor extraction seal part.

In the above embodiment, an example in which the present invention is applied to a standing pouch has been described. However, the present invention can be applied to other types of packaging such as a flat pouch, a three-side seal type, a pillow type, and a gusset type. Needless to say. In particular, when applied to a standing pouch, the bag can be self-standing and heated in a microwave oven, and it is preferable to open the bag after heating and to pick it up without spilling the contents.

The packing stand of the present invention is a variety of retort foods such as curry, stew, meat dumplings, soup, red bean porridge, chilled foods such as gyoza, dumplings, shumai (grilled foods), pilaf (grilled rice) and frozen foods. It is suitably used as a packaging stand for foods heated by microwave ovens or baths.

As a method of manufacturing a package in which various foods are filled in the microwave oven packaging table of the present invention, it is possible to continuously carry out the packing of the packaging table (bag production) and the filling of the contents, and to use a so-called in-line sealing method. It can be adopted. In this system, normally, the heat sealing of a circumferential seal part and a steam extraction seal part is performed simultaneously, but the buffer part and the weakening part which are provided in a vapor extraction seal part can be formed by the method of hole-processing after heat sealing. Moreover, the buffer part and the weakening part may be previously formed in the film disk which comprises a packaging stand, and this disk film may be heat-sealed and umbilized.

As another method of manufacturing a package in which the contents are filled in the packing table, after removing the packing table in advance, a filling machine or a separate machine is used, and the filling hole is sealed after filling the contents. off line) may be employed. The heat sealing of the vapor extraction seal portion may be performed at the same time as the seal of the filling port or may be performed before filling.

According to this configuration, the microwave oven packaging stand of the present invention exhibits the following remarkable effects.

(1) The plastic lamination film constituting the packing bag is prevented from interfacially peeling from the steam extracting seal portion, so that the breakage at the steam extracting seal portion occurs before the breakage of the circumferential seal portion occurs during heating by the microwave oven, and the bag is predetermined. The weakening part can be opened automatically and can be prevented from tearing.

(2) It is possible to manufacture microwave packaging stand which automatically opens at steam extraction seal part without involving special material or complicated process.

(3) The seal strength (more than 2.3㎏ / 15㎜) necessary for sterilizing retort after filling the contents can be secured.

(4) When heating in a microwave oven, the steam extraction seal maintains the seal strength for a certain time, the internal pressure in the package is kept high by water vapor, and the steaming effect can be obtained. In addition to the improvement, the cooking time can be shortened.

Claims (15)

A microwave oven packaging box having at least one steam extracting seal portion sealed by heat-sealing a plastic laminated film, wherein the steam extracting seal portion is provided in an outer seal portion, a buffer portion adjacent to the outer seal portion, and the buffer portion. A microwave oven packing stand, which is configured by an installed weakening unit. 2. The packaging table for a microwave oven according to claim 1, wherein the buffer portion is formed by an unsealed portion (unsealed portion) or a weak seal portion. The microwave oven packaging table according to claim 1, wherein the weakening portion is formed by providing a through hole, a half through hole, or a slit in the buffer portion. The microwave oven packaging table according to claim 2, wherein the weakening portion is formed by providing a through hole, a half through hole, or a slit in the buffer portion. The microwave packing stand according to any one of claims 1 to 4, wherein the steam extracting seal part is set separately from the circumferential seal part of the packing stand. The microwave packaging stand according to any one of claims 1 to 4, wherein the steam extracting seal portion is connected to the circumferential seal portion of the packaging stand. The electron breaking point of any one of Claims 1-4 which provided the initial breaking point of the steam extraction seal part in the circumference | circumference of the circle which inscribes in the center of the inner end of the perimeter seal part of the two short sides of a packing stand, and the former characterized by the above-mentioned. Range packing stand. The packing stand for a microwave oven according to any one of claims 1 to 4, wherein the seal strength of the outer seal portion of the circumferential seal portion and the vapor extraction seal portion is 2.3 kg / 15 mm or more. The microwave oven packaging table according to any one of claims 1 to 4, wherein a spout forming means is provided in the vicinity of the steam extracting seal portion. The packaging stand for a microwave oven according to any one of claims 1 to 4, wherein the packaging stand is a standing pouch. The microwave packaging stand according to any one of claims 1 to 4, wherein a laser processing is performed at a place where a packaging stand is to be opened. The method for manufacturing a microwave oven packaging box according to any one of claims 1 to 4, wherein the outer seal portion of the vapor extraction seal portion, the buffer portion, and the weakening portion are simultaneously formed when the microwave oven packaging table is manufactured. . The microwave oven packaging table according to any one of claims 1 to 4, wherein when the microwave oven packaging table is manufactured, a buffer portion and a weakening portion are formed after the outer seal portion of the vapor extraction seal portion is formed. Manufacturing method. The method for producing a package according to any one of claims 1 to 4, wherein the packing of the microwave oven and the filling of the contents are continuously performed. The method according to any one of claims 1 to 4, wherein the packing of the microwave oven and the filling of the contents are separately set.

Images