KR102520105B1 - Electronic range cooking packaging bag - Google Patents

Abstract

The present invention is intended to provide a microwave food packaging bag, and the configuration of the microwave food packaging bag of the present invention is that the first packaging bag sheet 20A and the second packaging bag sheet 20B facing each other form a border joint 22 A packaging bag body 20 having a receiving portion 20CH that is bonded to each other and contains food for microwave cooking therein; A film side joint adjacent to at least one end of the parts adjacent to both ends and bonded to the inner surface of the two first packaging bag sheets 20A or the second packaging bag sheet 20B of the packaging bag body 20 ( 40PS) includes a hole-forming film 40 bonded together to the edge joint 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B, and the hole-forming film 40 The bonding strength of bonding the left and right film side bonding portions 40PS of ) to the edge bonding area 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B is It is characterized in that it is configured to be smaller than the bonding strength of the edge bonding portion 22 bonding 20A and the second packaging bag sheet 20B.
The effect of the present invention is that when pressure is generated inside the packaging bag body containing food during cooking in a microwave oven, a pressure discharge hole is naturally formed in the packaging bag body and the pressure is discharged from the inside of the packaging bag body to the outside. This is to prevent it from bursting due to pressure during microwave cooking.

Description

Microwave food packaging bag {Electronic range cooking packaging bag}

The present invention relates to a microwave food packaging bag, and more particularly, of a new configuration having a safety function to prevent a microwave food pouch from bursting as a pressure discharge hole is formed when microwave food is heated in a microwave oven. It relates to a microwave food packaging bag.

BACKGROUND ART As the use of microwave ovens has become common, many microwave packaging bags for food that can be easily heated and eaten are distributed on the market. In addition to large marts, a lot of microwave packaging bag food is distributed in general small marts. In the case of microwave packaging bag food, it is widely supplied in a frozen and refrigerated state.

At this time, in the process of placing the food in the microwave packaging bag in the microwave and warming it, pressure is generated inside the packaging bag, so the packaging bag is often burst due to the pressure while heating the food in the microwave packaging bag. There are also packaging bags for microwave ovens with holes that can be removed.

However, in the case of forming a hole (hole for pressure release) in the wrapping paper sheet of the packaging bag, the area around the laser processing hole is often torn due to the pressure in the process of heating the microwave packaging bag product in a microwave oven. If the bag product is heated in a microwave oven and the hole is torn, the food is not properly heated, resulting in a loss of taste. Above all, since the periphery of the hole of the packaging bag product is torn and the food is not properly heated, it is a big problem that it is difficult for consumers to heat and consume the food as desired.

In addition, if the hole is torn while heating the microwave packaging bag product, it is because the pressure and the number or size of the hole do not match properly when heating the microwave oven. Since the size and number of holes must be precisely matched and designed, there is a problem in that it is not easy to manufacture the wrapping paper sheet of the packaging bag.

After all, in the past, in the process of putting microwave food packaging bag products (meaning products containing food for microwave cooking) inside the microwave oven and cooking them in the microwave oven, the pressure generated inside the microwave food packaging bag There is a problem in that the packaging bag is not properly prevented from bursting due to heat, so that the food is not properly heated and the taste of the food is lost. A lot happens.

Korean Utility Model Registration No. 20-0190941 (registered on May 19, 2000) Korean Utility Model Registration No. 20-0337875 (registered on December 26, 2003) Korean Utility Model Registration No. 20-0356122 (registered on July 3, 2004)

The present invention was developed to solve the above problems, and an object of the present invention is to have a safety function that can prevent the pouch from bursting while a pressure discharge hole is created when food is heated in a microwave oven, It is an object of the present invention to provide a microwave food packaging bag having a new configuration that can prevent the microwave food from being destroyed when the microwave food is heated in a microwave oven.

According to the present invention for solving the above problems, the first packaging bag sheet and the second packaging bag sheet facing each other are bonded to each other by an edge joint, and the packaging has a receiving portion containing food for microwave cooking therein. back body; A film side junction adjacent to at least one end of the parts adjacent to both ends of the two sheets of the packaging bag body bonded to the inner surface of the first packaging bag sheet or the second packaging bag sheet and adjacent to both ends thereof, is formed between the first packaging bag sheet and the first packaging bag sheet. 2 hole forming films bonded together to the edge joint portions of the packaging bag sheet, wherein both left and right film side joints of the hole forming film are connected to the edge joint regions of the first packaging bag sheet and the second packaging bag sheet. The bonding strength of the microwave food packaging bag is configured to be smaller than the bonding strength of the edge joint connecting the first packaging bag sheet and the second packaging bag sheet.

The hole forming film is configured to include an easy-peel layer and a fusion bonding layer, so that the hole forming film is integrated into the inner surface of the first packaging bag sheet or the second packaging bag sheet of the packaging bag body by the fusion bonding layer. and a part of the easy-peel layer provided at the film side bonding part is bonded to the inner surface of the second packaging bag sheet or the first packaging bag sheet in the edge bonding area, so that both left and right sides of the hole-forming film are bonded to each other. The bonding strength of the edge bonding portion bonding the first packaging bag sheet and the second packaging bag sheet is the bonding strength of the film side bonding portion to the edge bonding area of the first packaging bag sheet and the second packaging bag sheet. It is characterized in that it is configured to be smaller.

Among the edge joints of the packaging bag body, the film side joints on both left and right sides of the hole-forming film and the left and right side edge joints where the first packaging bag sheet and the second packaging bag sheet are joined are composed of multi-layer joints, A part of the easy-peel layer at the film side bonding part of the hole forming film is bonded to the inner surface of the first packaging bag sheet, and a part of the fusion bonding layer at the film side bonding part of the hole forming film is bonded to the inner surface of the first packaging bag sheet. When bonded to the inner surface of the sheet, the multi-layer joint comprises the first packaging bag sheet, the second packaging bag sheet, the easy-peel layer bonded to the inner surface of the first packaging bag sheet, and the second packaging bag sheet. It is characterized in that it is composed of the fusion bonding layer bonded to the inner surface of the back sheet.

In the state where the microwave food is contained and packaged in the accommodating part inside the packaging bag body, pressure is generated in the accommodating part (20CH) inside the packaging bag body while cooking by putting the packaging bag body into a microwave oven. The left and right film side junctions of the hole forming film are bonded to the multi-layer joint of the first packaging bag sheet and the second packaging bag sheet by the easy-peel layer, so that the pressure generated in the accommodating portion (20CH) inside the packaging bag body It is characterized in that the easy-peel layer is configured to form a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body while being opened from the first packaging bag sheet.

A part of the edge joint of the packaging bag body is provided with a pressure discharge hole forming guide hole penetrating both left and right film side joints of the hole forming film and both sides of the edge joint of the packaging bag body.

A part of the edge joint of the packaging bag body penetrates both sides of both left and right film side joints of the hole forming film and both sides of the side edge joint of the packaging bag body, and at the same time, the end of the side edge joint of the packaging bag body It is characterized in that the pressure discharge hole formed cutout is provided.

A bottom sheet is disposed between the lower inner surfaces of the two first packaging bag sheets and the second packaging bag sheet facing each other, and the bottom sheet junction adjacent to both ends of the bottom sheet connects the two first packaging bag sheets and the second packaging bag sheet to each other. It is characterized in that it is configured to be bonded together to the lower edge joint of the second packaging bag sheet.

delete

The hole forming film is configured to include an easy peel layer and a fusion bonding layer, and the fusion bonding layer of the hole forming film is attached to an inner surface of the first packaging bag sheet or the second packaging bag sheet forming the packaging bag body. and the easy-peel layer of the hole-forming film is disposed toward the contents contained in the container inside the packaging bag body and bonded to the inner surface of the second packaging bag sheet or the first packaging bag sheet, The second packaging bag sheet 20B and the first packaging bag sheet 20A are bonded together by an edge joint 22 while surrounding the contents to form the packaging bag body 20, and the packaging bag body When pressure is generated when the contents are cooked by putting it in a microwave oven, the fusion bonding layer of the hole-forming film does not separate from the first packaging bag sheet or the second packaging bag sheet, and the easy-peel layer is removed from the second packaging bag sheet by the pressure. It is characterized in that it is configured to form a pressure discharge hole in the packaging bag body while being separated from the sheet or the first packaging bag sheet.

The hole forming film is configured to include an easy peel layer and a fusion bonding layer, and the fusion bonding layer of the hole forming film is bonded to the inner surface of the first packaging bag sheet or the second packaging bag sheet, and the hole forming film The easy-peel layer is disposed to face the contents contained in the accommodating part inside the packaging bag body, and the second packaging bag sheet or the first packaging bag sheet is bonded by an edge joint while enclosing the contents, The packaging bag body is formed by the first packaging bag sheet and the second packaging bag sheet, and the packaging bag body further enters the edge joint area from the inner edge joint end where the edge joint starts in the receiving portion. A forming guide chamber is further provided so that when pressure is generated when the packaging bag body is put into a microwave oven to cook the contents, the fusion bonding layer of the hole forming film does not separate from the first packaging bag sheet or the second packaging bag sheet. The pressure enters the hole-forming guide chamber and causes the easy-peel layer to separate from the second packaging bag sheet or the first packaging bag sheet to form a pressure discharge hole in the packaging bag body.

The width of the inner end where the hole-forming guide chamber starts is adjusted according to the cooking time of the contents contained in the container inside the packaging bag body, and the width between the outer end where the hole-forming guide chamber ends and the end of the edge joint is adjusted. The distance is also adjusted according to the cooking time of the contents contained in the accommodating part inside the packaging bag body, and when the contents contained in the accommodating part are cooked by putting the packaging bag body in a microwave oven, A time at which the easy-peel layer falls from the hole-forming guide chamber area to an end of the edge junction part by pressure is controlled so that a time at which the pressure discharge hole is formed in the packaging bag body is controlled, and the hole-forming guide chamber If the width of the starting inner end becomes longer, the time for the pressure discharge hole to be formed from the hole-forming guide chamber to the edge junction of the packaging bag body becomes shorter, and the width of the inner end where the hole-forming guide chamber starts becomes shorter. The time for the pressure discharge hole to be formed at the edge joint of the packaging bag body is controlled by the principle that the time for the pressure discharge hole to be formed at the edge joint portion of the packaging bag body from the hole forming guide chamber to the ground is prolonged. If the distance between the outer end of the hole-forming guide chamber and the end of the edge joint increases, the time required to form the pressure discharge hole at the edge joint of the packaging bag body increases, and the outer end of the hole-forming guide chamber ends. The pressure discharge hole is formed at the edge joint of the packaging bag body by the principle that the time for forming the pressure discharge hole at the edge joint of the packaging bag body is shortened when the distance between the end and the end of the edge joint is shortened. It is characterized in that the time to be is controlled.

A part of the edge joint of the packaging bag body is provided with a pressure discharge hole forming guide hole penetrating both left and right film side joints of the hole-forming film and both sides of the edge joint of the packaging bag body. A cutout is provided to form a pressure discharge hole that penetrates both sides of both film side junctions and both sides of the edge junction of the packaging bag body and is open to an end of the edge junction of the packaging bag body, and the edge of the packaging bag body. When a part of the junction is provided with the guide hole for forming the pressure discharge hole, the distance between the guide hole for forming the pressure discharge hole at the end of the inner edge joint at which the edge joint starts is the content contained in the receiving portion inside the packaging bag body. is adjusted according to the cooking time, and when the packaging bag body is put into a microwave oven to cook the contents contained in the accommodating part, the pressure generated in the accommodating part causes the easy-peel layer to form an inner rim at which the edge joining part starts. The pressure discharge hole is formed so that the time required to form the pressure discharge hole in the packaging bag body is controlled by adjusting the time required to fall from the joint end to the pressure discharge hole formation guide hole, and the pressure discharge hole is formed at the inner edge joint end where the edge joint starts. When the distance between formation guide holes becomes longer, the time for forming the pressure discharge hole at the rim junction of the packaging bag body increases, and the pressure discharge hole formed between the guide hole at the inner rim junction end where the rim junction begins. When the distance is shortened, the time during which the pressure discharge hole is formed at the edge junction of the packaging bag body is adjusted according to the principle that the time for forming the pressure discharge hole at the edge junction of the packaging bag body is shortened. When the cutout for forming the pressure discharge hole is provided at a part of the edge joint of the bag body, the distance between the cutout for forming the pressure discharge hole at the inner edge joint end where the edge joint starts is the accommodation inside the packaging bag body. It is adjusted according to the cooking time of the contents contained in the portion, and when the packaging bag body is put into a microwave oven to cook the contents contained in the accommodation portion, the easy-peel layer is moved to the edge joint by the pressure generated in the accommodation portion. The time of falling from the inner edge joint end where the edge joint starts to the pressure discharge hole forming cutout is adjusted so that the time when the pressure discharge hole is formed in the packaging bag body is adjusted, and at the inner edge joint end where the edge joint starts. If the distance between the pressure discharge hole forming cutouts increases, the time required for the pressure discharge hole to be formed at the rim junction of the packaging bag body increases, and the pressure discharge hole is formed at the inner rim junction end where the rim junction begins. When the distance between the cut parts is shortened, the time for the pressure discharge hole to be formed at the edge joint of the packaging bag body is controlled by the principle that the time for the pressure discharge hole to be formed at the edge joint of the packaging bag body is shortened. It is characterized in that it is configured to be.

The microwave food packaging bag product containing food for microwave cooking in the microwave food packaging bag of the present invention is heated in a microwave oven. When the microwave food packaging bag product is put in a microwave oven and heated, pressure is generated, Due to the easy-peel layer, which has a relatively smaller bonding strength than the edge joint of the packaging bag body, which is the main part of the surface formed inside the packaging bag body, a part of the edge joint of the two packaging pack sheets is spread by pressure by the hole forming film. A pressure discharge hole communicating with the inside and outside of the packaging bag body is formed at the junction of the edge of the packaging bag body, and the pressure inside the packaging bag body is naturally discharged to the outside through the pressure discharge hole, thereby producing microwave food packaging bag products. If the packaging bag is torn while heating in a microwave oven (ie, the packaging bag body is torn by pressure), it will not occur at all, so there is no problem such as the taste of the food being lost due to the food being cooked in the microwave not being properly heated. has a resolving effect. That is, in the present invention, when pressure is generated inside the packaging bag body containing food during cooking in a microwave oven, a pressure discharge hole is naturally formed in the packaging bag body and the pressure is discharged from the inside of the packaging bag body. It has an effect of preventing bursting due to pressure during cooking.

1 is a perspective view showing a state before combining a first packaging bag sheet, a second packaging bag sheet, and a hole-forming film, which are main parts of a microwave food packaging bag according to the present invention;
2 is a perspective view of a microwave food packaging bag according to the present invention;
3 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag according to the present invention is put into a microwave oven and cooked;
4 is a side cross-sectional view of part A of FIG. 2, showing a portion where a first packaging bag sheet, a hole-forming film, and a second packaging bag sheet are joined in the packaging bag body, which is a main part;
5 is a cross-sectional side view of part B of FIG. 3, showing a state in which a pressure discharge hole is formed in the packaging bag body by the hole-forming film shown in FIG. 4 when the microwave food packaging bag of the present invention is put into a microwave oven and cooked. side view showing
6 is a perspective view of a microwave food packaging bag according to another embodiment of the present invention;
7 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 6 is put into a microwave oven and cooked;
8 is a perspective view of a microwave food packaging bag according to another embodiment of the present invention;
9 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 8 is put into a microwave oven and cooked;
10 is a perspective view showing a state before combining a first packaging bag sheet, a second packaging bag sheet, and a hole-forming film, which are main parts of a microwave food packaging bag that cooks food by laying it in a microwave oven;
11 is a perspective view of a microwave food packaging bag formed by combining main parts shown in FIG. 10;
12 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 11 is put into a microwave oven and cooked;
13 is a longitudinal cross-sectional view showing a portion where a first packaging bag sheet, a hole forming film, and a second packaging bag sheet are joined in the packaging bag body, which is a main part of part A of FIG. 11;
FIG. 14 is a longitudinal cross-sectional view of part B of FIG. 12, showing a state in which a pressure release hole is formed in the packaging bag body by the hole-forming film shown in FIG. 13 when the microwave food packaging bag of the present invention is put into a microwave oven and cooked. cross section showing,
15 is a perspective view showing another embodiment of the microwave food packaging bag shown in FIG. 11;
16 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 15 is put into a microwave oven and cooked;
17 is a perspective view showing another embodiment of the microwave food packaging bag shown in FIG. 11;
18 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 17 is put into a microwave oven and cooked;
19 is a longitudinal cross-sectional view of part C of FIGS. 6 and 15, showing a portion where a first packaging bag sheet, a hole-forming film, and a second packaging bag sheet are joined in the packaging bag body, which is a main part;
FIG. 20 is a longitudinal cross-sectional view of part D of FIGS. 7 and 16 . When the microwave food packaging bag of the present invention is put into a microwave oven and cooked, pressure is applied to the packaging bag body by the hole-forming film shown in FIGS. 6 and 15 . A longitudinal cross-sectional view showing the state in which the discharge hole is formed,
21 is a longitudinal cross-sectional view of part E shown in FIGS. 8 and 17, showing a portion where a first packaging bag sheet, a hole-forming film, and a second packaging bag sheet are joined in the packaging bag body, which is a main part;
22 is a longitudinal cross-sectional view of part F shown in FIGS. 9 and 18, showing a state in which a pressure discharge hole is formed in the packaging bag body by the hole-forming film shown in FIGS. 8 and 17;
23 is a front view showing an embodiment in which a hole-forming guide chamber is formed at an edge junction of a packaging bag body, which is a main part of the present invention;
24 is a front view showing an embodiment in which a guide hole for forming a pressure discharge hole is provided at an edge junction of a packaging bag body, which is a main part of the present invention;
25 is a front view showing an embodiment in which a cutout for forming a pressure discharge hole is provided at an edge junction of a packaging bag body, which is a main part of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Objects, features and advantages of the present invention will be more easily understood by referring to the accompanying drawings and the following detailed description. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used in describing the components of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. For example, when an element is described as being “connected,” “coupled,” or “connected” to another element, that element may be directly connected or connected to the other element, but there is a gap between each element. It should be understood that another component may be “connected”, “coupled” or “connected”.

1 is a perspective view showing a state before combining a first packaging bag sheet, a second packaging bag sheet, and a hole-forming film, which are main parts of a microwave food packaging bag according to the present invention, and FIG. 2 is a microwave food packaging according to the present invention. A perspective view of the bag, Figure 3 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag according to the present invention is put into a microwave oven and cooked, Figure 4 is a side cross-sectional view of part A of FIG. A side cross-sectional view showing a portion where the first packaging bag sheet, the whole forming film, and the second packaging bag sheet are joined in the packaging bag body, which is a main part, and FIG. 5 is a side cross-sectional view of part B of FIG. 6 is a side cross-sectional view showing a state in which a pressure release hole is formed in the packaging bag body by the hole-forming film shown in FIG. 4 when cooking by putting it in a microwave oven. FIG. A perspective view, FIG. 7 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 6 is put into a microwave oven and cooked. FIG. A perspective view of a microwave food packaging bag, FIG. 9 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 8 is put into a microwave oven and cooked, FIG. A perspective view showing a state before the first and second packaging bag sheets and the hole forming film, which are the main parts of the microwave food packaging bag for cooking, are combined. FIG. 11 is a microwave oven formed by combining the main parts shown in FIG. A perspective view of a food packaging bag, FIG. 12 is a perspective view showing a state in which a pressure release hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 11 is put into a microwave oven and cooked, FIG. Fig. 14 is a longitudinal cross-sectional view showing a portion where the first packaging bag sheet, the hole-forming film, and the second packaging bag sheet are joined in the packaging bag body, which is a main part of the figure, and FIG. 14 is a longitudinal cross-sectional view of part B of FIG. A longitudinal cross-sectional view showing a state in which a pressure release hole is formed in the packaging bag body by the hole-forming film shown in FIG. 13 when the packaging bag is put into a microwave oven and cooked. FIG. 16 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 15 is put into a microwave oven and cooked, FIG. 18 is a perspective view showing another embodiment of a microwave food packaging bag, and FIG. 18 is a perspective view showing a state in which a pressure discharge hole is formed in the packaging bag body when the microwave food packaging bag shown in FIG. 17 is put into a microwave oven and cooked. 19 is a longitudinal cross-sectional view of part C of FIGS. 6 and 15, showing a portion where the first packaging bag sheet, the hole-forming film, and the second packaging bag sheet are joined in the packaging bag body, which is a main part; FIG. As a longitudinal cross-sectional view of part D of FIG. 16, when the microwave food packaging bag of the present invention is put into a microwave oven and cooked, the pressure discharge hole is formed in the packaging bag body by the hole-forming film shown in FIGS. 6 and 15. FIG. 21 is a longitudinal cross-sectional view of part E shown in FIGS. 8 and 17, showing a portion where the first packaging bag sheet, the hole-forming film, and the second packaging bag sheet are joined in the packaging bag body, which is a main part. 22 is a longitudinal cross-sectional view of part F shown in FIGS. 9 and 18, showing a state in which a pressure discharge hole is formed in the packaging bag body by the hole-forming film shown in FIGS. 8 and 17. FIG. 24 is a front view showing an embodiment in which a hole-forming guide chamber is formed at the edge junction of the packaging bag body, which is the main part of the present invention. FIG. 25 is a front view showing an embodiment in which a cutout for forming a pressure discharge hole is provided at an edge junction of a packaging bag body, which is a main part of the present invention.

Referring to the drawings, in the microwave food packaging bag according to the present invention, a first packaging bag sheet 20A and a second packaging bag sheet 20B facing each other are bonded to each other by an edge joint 22, so that a microwave oven is inside. A packaging bag body 20 having an accommodating portion 20CH containing food for cooking (contents), and the first packaging bag sheet 20A or the second packaging bag sheet of the two sheets of the packaging bag body 20 The film side bonding portion 40PS bonded to the inner surface of 20B and adjacent to at least one end among parts adjacent to both ends is the edge bonding portion of the first packaging bag sheet 20A and the second packaging bag sheet 20B. It includes a hole forming film 40 bonded together to 22, and the left and right film side bonding parts 40PS of the hole forming film 40 are connected to the first packaging bag sheet 20A and the second packaging bag sheet. The bonding strength of (20B) bonded to the edge bonding portion 22 area is configured to be smaller than the strength of the edge bonding portion 22 directly bonding the first packaging bag sheet 20A and the second packaging bag sheet 20B. do.

In the present invention, the hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, so that the hole forming film 40 is attached to the packaging bag body (by the fusion bonding layer 43). 20) integrally bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B and provided at the film side bonding portion 40PS adjacent to both ends of the hole-forming film 40 A part of the fusion bonded layer 43 is integrally bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B in the area of the edge joint 22, and the film side joint 40PS Since a part of the easy-peel layer 42 provided on the edge is bonded to the inner surface of the second packaging bag sheet 20B or the first packaging bag sheet 20A in the area of the edge joint 22, the hole-forming film The left and right film side junctions 40PS of 40 are applied to the area of the edge junction 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B (in the present invention, the side surface of the packaging bag body 20) The bonding strength of bonding the first packaging bag sheet 20A and the second packaging bag sheet 20B directly (the first packaging bag sheet 20A and the second packaging bag sheet) It is configured to be smaller than the strength of the edge joint 22 that directly bonds the inner surfaces facing each other of (20B).

In the present invention, the bonding strength of the easy peel layer 42 bonding the film side bonding portion 40PS to the edge bonding area 22 of the two sheets of the first packaging bag sheet 20A and the second packaging bag sheet 20B is The easy-peel layer 42 of the hole-forming film 40 is configured to be smaller than the bonding strength of the edge joint 22 of the body 20, and the microwave food packaging bag of the present invention is put into the microwave oven and cooked. As a result, a part of the edge joint 22 of the film side joint 40PS and the two sheets of the first packaging bag sheet 20A and the second packaging bag sheet 20B is widened, and the pressure discharge hole in the packaging bag body 20 Forming (24) is the main feature.

The upper and lower circumferences of the first packaging bag sheet 20A and the second packaging bag sheet 20B, and the left and right side circumferences are joined by heat fusion, thereby forming the packaging bag body 20. form The two first packaging bag sheets 20A and the second packaging bag sheet 20B are bonded to each other by the upper edge bonding portion 22A, the lower edge bonding portion 22B, and the left and right side edge bonding parts 22C, so that the electronic inside A packaging bag body 20 having an accommodating portion 20CH containing food for cooking on a stove is formed. At this time, the bottom sheet 30 is disposed between the lower inner surfaces of the two facing first packaging bag sheets 20A and the second packaging bag sheet 20B, and the bottom adjacent to both ends of the bottom sheet 30. The sheet joint 32 may be configured to be joined together to the lower edge joint 22B of the two sheets of the first packaging bag sheet 20A and the second packaging bag sheet 20B. Alternatively, the bottom sheet 30 (dual bottom sheet 30 ) is disposed, and the bottom sheet junction 32 adjacent to both ends of the two bottom sheet pieces of the bottom sheet 30 is the two first packaging bag sheets 20A and the second packaging bag sheet 20B. It may also be configured to be bonded together to the lower rim joint (22B) of the. The bottom sheet 30 is formed as a bottom sheet of the packaging bag body 20 . The first packaging bag sheet 20A and the second packaging bag sheet 20B may be bonded to each other by the edge joint 22 to form the packaging bag body 20, and the first packaging bag sheet 20A and the 2 The packaging bag sheets 20B are joined to each other by the edge joint 22, and at the same time, the bottom sheet joint 32 adjacent to both ends of the bottom sheet 30 connects the two first packaging bag sheets 20A and the second packaging bag sheet 20A. The packaging bag body 20 may be formed by being bonded together to the lower edge joint 22B of the bag sheet 20B.

The hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43 . The hole forming film 40 is composed of two layers, an easy peel layer 42 and a fusion bonding layer 43 . At this time, the first packaging bag sheet 20A and the second packaging bag sheet 20B are made of the same material as the fusion bonding layer 43 of the hole forming film 40 . If the material of the first packaging bag sheet 20A and the second packaging bag sheet 20B is PP (polypropylene), the fusion bonding layer 43 is also made of PP, and the first packaging bag sheet 20A and the second packaging bag If the material of the sheet 20B is PE (polyethylene), the fusion bonding layer 43 is also made of PE.

The fusion bonding layer 43 of the hole forming film 40 is bonded to the inner surface of the first packaging bag sheet 20A or the inner surface of the second packaging bag sheet 20B by a heat fusion method. Since the material of the back sheet 20A and the second packaging bag sheet 20B and the material of the fusion bonding layer 43 of the hole forming film 40 are made of the same material, the hole forming film 40 is fusion bonding. The layer 43 is integrally bonded to the inner surface of the first packaging bag sheet 20A or the inner surface of the second packaging bag sheet 20B by thermal fusion, and is the fusion bonding layer of the hole-forming film 40. While (43) does not fall from the first packaging bag sheet (20A) or the second packaging bag sheet (20B), the Easy Pilz (43) occurs in the food container (20CH) inside the packaging bag body (20). It is configured to separate from the inner surface of the first packaging bag sheet 20A or the inner surface of the second packaging bag sheet 20B by pressure. In the present invention, the fusion bonding layer 43 of the hole forming film 40 is integrally bonded to the inner surface of the first packaging bag sheet 20A, and the easy peel layer 43 is integrally bonded to the inner surface of the second packaging bag sheet 20A. It is configured to bond to the surface.

The easy peeling layer 42 has a molecular structure different from that of the fusion bonding layer 43, so that the easy peeling layer 42 is formed on the first packaging bag sheet 20A or the second packaging bag sheet 20B. ), and when pressure is generated when the microwave oven packaging bag of the present invention is put into a microwave oven to cook microwave food, the pressure causes the fusion bonding layer 43 of the hole-forming film 40 to form. The silver does not come off the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 does not come off the first packaging bag sheet 20A or the second packaging bag sheet 20B. In the present invention, the easy-peel layer 43 of the hole-forming film 40 is arranged so as to face the food container 20CH containing food for microwave cooking (contents) inside the packaging bag body 20, When pressure is generated when microwave food is cooked by putting the microwave oven packaging bag into a microwave oven, the pressure acts toward the easy-peel layer 42 of the hole-forming film 40 so that the easy-peel layer 42 is formed in the first packaging bag. It is configured to be separated from the inner surface of the seat 20A.

The hole forming film 40 is formed by the easy-peel layer 42 to form the first packaging bag sheet 20A and the second packaging bag sheet 20B (sheets for forming the packaging bag body 20). Part of the easy-peel layer 42 bonded to the inner surface of the packaging bag sheet 20A and located at the left and right film side junctions 40PS of the hole-forming film 40 is the first packaging bag of the packaging bag body 20. The seat 20A and the second packaging bag sheet 20B are bonded to the inner surface of the first packaging bag sheet 20A in the area of the edge joint 22 (to be precise, the area of the side edge joint 22C), A portion of the fusion bonding layer 43 in the left and right film side junctions 40PS of the hole forming film 40 is the area of the edge junction 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B. It is bonded to the inner surface of the second packaging bag sheet 20A (to be precise, in the area of the side edge bonding portion 22C).

A part of the easy-peel layer 42 at the left and right film side junctions 40PS of the hole forming film 40 is the first packaging bag sheet ( 20A), and at the same time, a part of the fusion joint 43 in the left and right film side joints 40PS of the hole forming film 40 is attached to the left and right side edge joints 22C of the packaging bag body 20 In the area, it is integrally bonded to the inner surface of the second packaging bag sheet 20B by a method such as thermal fusion bonding. Conversely, part of the easy-peel layer 42 in the left and right film side junctions 40PS of the hole-forming film 40 is part of the left and right side edge junctions 22C of the packaging bag body 20 in the second packaging bag area. A part of the fusion joint 43 bonded to the inner surface of the sheet 20B and at the left and right film side joints 40PS of the hole forming film 40 at the same time is the left and right side edge joints of the packaging bag body 20 ( 22C) is integrally bonded to the inner surface of the first packaging bag sheet 20B by a method such as heat fusion bonding.

delete

Among the edge joint portions 22 of the packaging bag body 20, the film side joint portions 40PS on both left and right sides of the hole forming film 40, the first packaging bag sheet 20A, and the second packaging bag sheet ( The left and right side edge junctions 22C to which 20B) are joined are composed of multi-layer junctions, the multi-layer junctions comprising the first packaging bag sheet 20A, the second packaging bag sheet 20B, and the first packaging It is composed of an easy peel layer 42 bonded to the inner surface of the bag sheet 20A and a fusion bonded layer 43 bonded to the inner surface of the second packaging bag sheet 20.

The fusion bonding layer 43 of the hole-forming film 40 is bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 of the hole-forming film 40 ) is disposed toward the contents contained in the accommodating portion 20CH inside the packaging bag body 20, and is placed on the inner surface of the second packaging bag sheet 20B or the first packaging bag sheet 20A. The second packaging bag sheet 20B and the first packaging bag sheet 20A are bonded together by an edge joint 22 while wrapping the contents, so that the first packaging bag sheet 20A and the second packaging bag sheet 20A are bonded together. The packaging bag body 20 is formed by the packaging bag sheet 20B, and when pressure is generated when the packaging bag body 20 is put into a microwave oven to cook the contents, the hole-forming film 40 is fused. The bonding layer 43 does not separate from the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 adheres to the second packaging bag sheet 20B or the first packaging bag sheet 20B by the pressure. A microwave food packaging bag, characterized in that it is configured to form a pressure release hole (24) in the packaging bag body (20) while being separated from the packaging bag sheet (20A).

Among the edge joint portions 22 of the packaging bag body 20, the film side joint portions 40PS on both left and right sides of the hole forming film 40, the first packaging bag sheet 20A, and the second packaging bag sheet ( The left and right side edge joints 22C to which 20B) is joined are composed of multi-layer joints, and a part of the easy-peel layer 42 in the film side joint 40PS of the hole-forming film 40 is attached to the first package. A part of the fusion bonding layer 43 bonded to the inner surface of the back sheet 20A and located at the film side joint 40PS of the hole forming film 40 is the inner surface of the second packaging bag sheet 20B. , the multi-layer bonding portion is composed of the first packaging bag sheet 20A, the second packaging bag sheet 20B, the easy-peel layer 42 and the fusion bonding layer 43.

While microwave food is packed in the packaging bag body 20 and cooking by putting the packaging bag body 20 in the microwave oven, pressure is generated in the receiving part 20CH inside the packaging bag body 20, , The multi-layer junction of the first packaging bag sheet 20A and the second packaging bag sheet 20B (that is, the multi-layer junction provided at the edge junction 22 of the packaging bag body 20, especially the packaging bag body 20) The multi-layer bonding portion provided in the side edge bonding portion 22C) is bonded to the left and right film side bonding parts 40PS of the hole forming film 40 by the easy peel layer 42 and the fusion bonding layer 43, so that the packaging The pressure discharge hole communicating with the inside and outside of the packaging bag body 20 while the easy peel layer 42 is spread from the first packaging bag sheet 20A by the pressure generated in the accommodating portion 20CH inside the bag body 20 ( 24) is configured to form. At this time, the easy-peel layer 42 of the hole-forming film 40 is bonded to the inner surface of the second packaging bag sheet 20B in the multi-layer bonding area, and the fusion bonded layer 43 is the first packaging bag film ( 20A), but in this case, the easy peel layer 42 is opened from the second packaging bag sheet 20B by the pressure generated in the receiving portion 20CH inside the packaging bag body 20. It may be configured to form a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 while being held.

According to the present invention having the above configuration, the packaging bag body 20 is put into a microwave oven to cook in a state in which the microwave food is packaged in the packaging bag body 20, and the packaging bag body 20 Pressure generated in the receiving portion 20CH inside the packaging bag body 20 during cooking (that is, putting the microwave food packaging bag of the present invention into a microwave oven for cooking) (such as steam generated during cooking) The edge joint 22 of the packaging bag body 20 is opened by part of the left and right film side joints 40PS of the hole forming film 40 and the edge joint 22 of the two packaging pack sheets. A pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 is formed.

Pressure is generated in the receiving portion 20CH inside the packaging bag body 20 while cooking by putting the packaging bag body 20 in a microwave oven in a state where microwave food is packed in the packaging bag body 20. At the multi-layer junction of the two packaging pack sheets, the easy-peel layer ( 42) Since the hole forming films 40 are bonded together, the pressure generated in the accommodating portion 20CH inside the packaging bag body 20 forms the two first packaging bag sheets of the packaging bag body 20. As (20A) and the second packaging bag sheet (20B) are spread out at the multi-layer junction, a pressure discharge hole (24) communicating with the inside and outside of the packaging bag body (20) is formed. In other words, the easy-peel layer 42 of the hole-forming film 40 is separated from the first packaging bag sheet 20A by pressure in the area of the side edge joint 22C of the packaging bag body 20, and the packaging bag body ( 20) to form a pressure discharge hole 24 communicating with the inside and outside. The easy-peel layer 42 of the hole-forming film 40 is arranged to face the food container 20CH inside the packaging bag body 20, so that the pressure generated during food cooking inside the packaging bag body 20 Since it acts toward the easy-peel layer 42 of the forming film 40, the easy-peel layer 42 of the hole-forming film 40 is separated from the first packaging bag sheet 20A by the pressure and the packaging bag body 20 It is to form a pressure discharge hole 24 communicating with the inside and outside of the.

The easy-peel layer 42 of the hole-forming film 40 is bonded to the inner surface of the first packaging bag sheet 20A and faces the food container 20CH inside the packaging bag body 20, and the hole-forming When the fusion bonding layer 43 of the film 40 is integrally bonded to the inner surface of the second packaging bag sheet 20B, the food container 20CH inside the packaging bag body 20 contains food. In this state, the easy-peel layer 42 of the hole-forming film 40 moves along the side of the packaging bag body 20 as the pressure generated when cooking by putting the packaging bag body 20 in the microwave oven acts toward the easy-peel layer 42. Since it is separated from the inner surface of the first packaging bag sheet 20A in the area of the edge joint 22C, a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 is formed.

Conversely, the easy-peel layer 42 of the hole-forming film 40 is bonded to the inner surface of the second packaging bag sheet 20B and faces the food container 20CH inside the packaging bag body 20, When the fusion bonding layer 43 of the hole forming film 40 is integrally bonded to the inner surface of the first packaging bag sheet 20A, the food container 20CH inside the packaging bag body 20 The pressure generated when the packaging bag body 20 is put into a microwave oven and cooked in the state in which it is contained acts toward the easy-peel layer 42, and the easy-peel layer 42 of the hole-forming film 40 moves along the packaging bag body 20. Since it is separated from the inner surface of the second packaging bag sheet 20B in the area of the side edge junction 22C of the side, a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 is formed.

In summary, the hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, and the fusion bonding layer 43 of the hole forming film 40 is the packaging bag body 20 ) is bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B forming the hole forming film 40, and the easy-peel layer 42 of the hole-forming film 40 is the receiving portion inside the packaging bag body 20. (20CH), the second packaging bag sheet 20B or the first packaging bag sheet 20A is bonded by the edge joint 22 while wrapping the contents, so that the packaging A bag body 20 is formed, and when pressure is generated in the receiving part 20CH inside the packaging bag body 20 when the contents are cooked by putting the packaging bag body 20 in a microwave oven, the hole is formed by the pressure. The fusion bonding layer 43 of the forming film 40 does not separate from the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 is attached to the second packaging bag sheet 20B or the second packaging bag sheet 20B. 1 The pressure discharge hole 24 is formed in the packaging bag body 20 while being separated from the packaging bag sheet 20A. The easy-peel layer 42 of the hole-forming film 40 is attached to the inner surface of the first packaging bag sheet 20A and the easy-peel layer 42 is contained in the receiving portion 20CH inside the packaging bag body 20 If it is arranged so as to face the contents side, the easy-peel layer 42 is the first packing bag sheet ( 20A) to form a pressure release hole 24 in the packaging bag body 20, and the easy-peel layer 42 of the hole-forming film 40 is attached to the inner surface of the second packaging bag sheet 20A, When the easy-peel layer 42 is arranged so as to face the contents contained in the accommodating part 20CH inside the packaging bag body 20, the packaging bag body 20 is put into a microwave oven to microwave cooking food (contents ), the easy-peel layer 42 is separated from the second packaging bag sheet 20B by the pressure generated during cooking, forming a pressure discharge hole 24 in the packaging bag body 20.

Therefore, according to the present invention, the joint strength is higher than that of the edge junction part 22 (to be precise, the side edge junction part 22C) of the packaging bag body 20 due to the pressure generated when the microwave food packaging bag product is heated in a microwave oven. Due to the relatively smaller easy-peel layer 42 of the hole-forming film 40, a part of the edge joint 22 of the two packaging pack sheets is widened, so that the portion of the edge joint 22 of the packaging bag body 20 ( Specifically, a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 is formed at the side edge joint portion 22C), and the inside of the packaging bag body 20 is discharged through the pressure discharge hole 24. As the filled pressure is naturally discharged, the case where the packaging bag is torn while warming the microwave food packaging product in a microwave oven (ie, the packaging bag body 20 is torn) does not occur at all, so that food for microwave cooking It is effective in solving problems such as the taste of food not being properly heated. In particular, by preventing the case where the food is not properly heated due to the tearing of the microwave food packaging bag, there is an effect of preventing in advance the case where it is difficult for the consumer to heat and consume the food as desired. Microwave food packaging bag Prevents the microwave food packaging bag from exploding during the process of heating and cooking the food contained in the product, thereby preventing the microwave food from being spoiled, and the packaging bag bursting during microwave cooking and getting stuck inside the microwave oven. It also has the effect of preventing the hassle of wiping and removing the food.

Meanwhile, in the present invention, a guide for forming a pressure discharge hole passing through the film side joint 40PS and the edge joint 22 of the packaging bag body 20 is part of the edge joint 22 of the packaging bag body 20. A hole 26 is provided. In the present invention, of the edge joint 22 of the packaging bag body 20, the pressure discharge hole forming guide hole 26 penetrating both the left and right side edge joints 22C and the film side joint 40PS is configured to be provided. .

Due to the pressure generated when the microwave food packaging bag product is heated in a microwave oven, the easy-peel layer 42, which has a relatively smaller bonding strength than the edge joint 22 of the packaging bag body 20, is attached to the hole-forming film 40. The pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 is formed at the edge joint 22 of the packaging bag body 20 by making a part of the edge joint 22 of the two packaging pack sheets open. Forming a pressure discharge hole through the film side junction 40PS and the edge junction 22 of the packaging bag body 20 at a part of the edge junction 22 of the packaging bag body 20, a guide hole ( 26) is provided, the edge joint 22 of the hole-forming film 40 and the two packaging bag sheets 20A and 20B is formed due to the guide hole 26 for forming the pressure discharge hole (in the present invention, the packaging bag body The side edge joint (22C) portion of (20)) can be more easily formed so that the pressure discharge hole 24 is formed more smoothly. When the pressure discharge hole 24 is more smoothly formed in the packaging bag body 20 due to the guide hole 26 for forming the pressure discharge hole, the microwave food packaging bag product is heated in a microwave oven and the packaging bag is torn (That is, when the packaging bag body 20 is torn) can be prevented more reliably.

In addition, in the present invention, a part of the edge joint 22 of the packaging bag body 20 passes through the left and right film side joints 40PS of the hole forming film 40 and the edge joint 22 of the packaging bag body 20. At the same time, a pressure discharge hole forming cutout 28 opened to the end of the edge joint 22 of the packaging bag body 20 may be further provided. In the present invention, both sides of the left and right side edge joints 22C and both sides of the film side joint 40PS of the edge joint 22 of the packaging bag body 20 are penetrated together, and both left and right sides of the packaging bag body 20 are simultaneously penetrated. The pressure discharge hole forming cutout 28 is further provided to be opened to the end of the side edge joint 22C.

A pressure discharge hole forming cutout 28 penetrating the film side joint 40PS and the edge joint 22 of the packaging bag body 20 is formed at a part of the edge joint 22 of the packaging bag body 20. If provided, the hole-forming film 40 and the edge joint 22 of the two sheets of packaging bag sheets 20A and 20B due to the pressure discharge hole forming cutout 28 (in the present invention, the packaging bag body 20) The side edge junction (22C) portion of the) can be more easily formed so that the pressure discharge hole 24 is formed more smoothly. When the pressure release hole 24 is more smoothly formed in the packaging bag body 20 due to the pressure release hole formation cutout 28, the packaging bag is torn while heating the microwave food packaging bag product in a microwave oven (That is, when the packaging bag body 20 is torn) can be prevented more reliably.

The main effect of the present invention is that when pressure is generated inside the packaging bag body 20 containing food during cooking by putting it in a microwave oven, the pressure discharge hole 24 is naturally formed in the packaging bag body 20, and the packaging bag Since the pressure is discharged from the inside of the body 20, it is to prevent bursting due to pressure during microwave cooking.

Meanwhile, FIGS. 10 to 12 and FIGS. 15 to 18 are views showing a microwave food packaging bag that cooks food by laying it in a microwave oven. Since the microwave food packaging bags shown in FIGS. 10 to 12 and 15 to 18 have the same structure and function as the above-described embodiment of the present invention except that the food is cooked by laying in the microwave, the food is prepared by laying in the microwave. Redundant description of the structure and function of the cooking microwave food packaging bag will be omitted.

Meanwhile, according to the present invention, the hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, and the fusion bonding layer 43 of the hole forming film 40 is It is bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 of the hole-forming film 40 is contained in the receiving portion 20CH inside the packaging bag body 20. The second packaging bag sheet 20B or the first packaging bag sheet 20A is bonded by the edge joint 22 while wrapping the contents, and the first packaging bag sheet ( 20A) and the second packaging bag sheet 20B form the packaging bag body 20, and the packaging bag body 20 has an inner edge joint end ( 22SE) is further provided with a hole-forming guide chamber (20HFC) that is further recessed into the area of the edge joint 22, so that when pressure is generated when the packaging bag body 20 is put into a microwave oven to cook the contents, the hole-forming film The fusion bonding layer 43 of (40) does not separate from the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the pressure enters the hole forming guide chamber 20HFC so that the easy peel layer 42 is formed. It is configured to separate from the second packaging bag sheet 20B or the first packaging bag sheet 20A to form the pressure discharge hole 24 in the packaging bag body 20.

The width (20WL) of the inner end (20HIE) where the hole-forming guide chamber (20HFC) starts is adjusted according to the cooking time of the contents contained in the accommodating part (20CH) inside the packaging bag body (20), The distance between the outer end (20HOE) at which the forming guide chamber (20HFC) ends and the end (22PE) of the edge joint 22 also depends on the cooking time of the contents contained in the container (20CH) inside the packaging bag body (20). Adjusted, when the packaging bag body 20 is put into a microwave oven to cook the contents contained in the accommodating part 20CH, the easy peel layer 42 is formed as a hole-forming guide by the pressure generated in the accommodating part 20CH. The time for the pressure discharge hole 24 to be formed in the packaging bag body 20 is controlled by adjusting the time of falling from the area of the chamber 20HFC to the end 22PE of the edge joint 22.

When the width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) starts becomes longer, the pressure is applied from the hole-forming guide chamber (20HFC) to the edge joint (22) of the packaging bag body (20). When the time for forming the discharge hole 24 is shortened and the width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) starts is shortened, the hole-forming guide chamber (20HFC) begins with the packaging bag body. The pressure discharge hole 24 is formed in the edge joint 22 of the packaging bag body 20 by the principle that the time for the pressure discharge hole 24 to be formed in the edge joint 22 of (20) becomes longer. When the formation time is adjusted and the distance 22LL between the outer end 20HOE at which the hole-forming guide chamber 20HFC ends and the end 22PE of the edge joint 22 becomes longer, the packaging bag body 20 The time for forming the pressure discharge hole 24 in the edge joint 22 of the longer, the outer end 20HOE at which the hole forming guide chamber 20HFC ends and the end 22PE of the edge joint 22 When the distance 22LL between them is shortened, the time required for the pressure discharge hole 24 to be formed at the edge joint 22 of the packaging bag body 20 is shortened. The time at which the pressure discharge hole 24 is formed at the junction 22 is controlled.

When the present invention is a microwave food packaging bag that is put upright in a microwave oven, the hole-forming film 40 is arranged parallel to the path between the left and right side ends of the packaging bag body 20, so that the film of the hole-forming film 40 The side bonding portion 40PS may be configured to be bonded to the side edge bonding portion 22C among the edge bonding portions 22 of the packaging bag body 20, and the hole-forming film 40 may be attached to the upper and lower ends of the packaging bag body 20. It may be arranged in parallel with the path between the hole-forming films 40 so that the film side bonding portion 40PS is bonded to the upper edge bonding portion 22A among the edge bonding portions 22 of the packaging bag body 20.

Meanwhile, when the present invention is a microwave food packaging bag (shown in FIGS. 10 to 12 and 15 to 18) that is placed in a microwave oven, the hole-forming film 40 is placed on the left and right sides of the packaging bag body 20. It may be arranged in parallel with the path between the side ends so that the film side bonding part 40PS of the hole forming film 40 is bonded to the side edge bonding part 22C among the edge bonding parts 22 of the packaging bag body 20. , The hole-forming film 40 is arranged parallel to the path between the upper and lower ends of the packaging bag body 20 so that the film side bonding portion 40PS of the hole-forming film 40 is the edge bonding portion of the packaging bag body 20. Of (22), it may be configured to be bonded to the upper rim junction (22A) and the lower rim junction (22B).

In the present invention, an embodiment is shown in which the film side bonding portion 40PS of the hole forming film 40 is bonded to the side edge bonding portion 22C of the packaging bag body 20. In this case, the hole forming guide chamber 20HFC The starting width (20WL) of the inner end (20HIE) is adjusted according to the cooking time of the contents contained in the accommodating part (20CH) inside the packaging bag body 20, and the outer end of the hole-forming guide chamber (20HFC) ends. The distance between the end 20HOE and the end 22PE of the side edge junction 22C is also adjusted according to the cooking time of the contents contained in the accommodation part 20CH inside the packaging bag body 20, so that the packaging bag body ( 20) into the microwave oven to cook the contents contained in the accommodating part 20CH, the pressure generated in the accommodating part 20CH moves the easy peel layer 42 from the area of the hole-forming guide chamber 20HFC to the side edge. The time for the junction 22C to fall to the end 22PE is adjusted so that the time for forming the pressure discharge hole 24 in the packaging bag body 20 is adjusted.

For example, when the cooking time of the contents (food) contained in the accommodation part 20CH inside the packaging bag body 20 is 1 minute and the cooking time is 2 minutes, the packaging bag body containing the contents having a cooking time of 1 minute ( The width (20WL) of the inner end 20HIE at which the hole-forming guide chamber 20HFC of 20) starts is the starting point of the hole-forming guide chamber 20HFC of the packaging bag body 20 containing the contents for which the cooking time is 2 minutes. It is configured to be larger than the width (20WL) of the inner end (20HIE), and the time when the pressure discharge hole 24 is formed in the packaging bag body 20 containing the contents for which the cooking time is 1 minute is 2 minutes. It is faster than the time for the pressure discharge hole 24 to be formed in the packaging bag body 20 containing the powdered contents.

In the present invention, an embodiment is shown in which the film side bonding portion 40PS of the hole-forming film 40 is bonded to the side edge bonding portion 22C of the packaging bag body 20, and the packaging bag body containing the contents having a cooking time of 1 minute. The width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) of (20) starts is the hole-forming guide chamber (20HFC) of the packaging bag body (20) containing the contents for which the cooking time is 2 minutes. It is configured to be larger than the width (20WL) of the starting inner end (20HIE), and the cooking time is 1 minute. ) The pressure discharge hole 24 is formed between the ends of the hole-forming guide chamber 20HFC and the end of the side edge junction 22C in the packaging bag body 20 containing the contents for which the cooking time is 2 minutes. faster than the time for the pressure discharge hole 24 to be formed.

On the other hand, the distance between the outer end 20HOE at the end of the hole forming guide chamber 20HFC of the packaging bag body 20 containing the contents for which the cooking time is 1 minute and the end 22PE of the side edge joint 22C is 2 minutes. It is configured to be smaller than the distance between the outer end 20HOE at which the hole-forming guide chamber 20HFC of the packaging bag body 20 containing the powdered contents ends and the end 22PE of the side edge junction 22C, so that the cooking time is reduced. The time at which the pressure discharge hole 24 is formed in the packaging bag body 20 containing the contents of 1 minute is the time during which the pressure discharge hole 24 is formed in the packaging bag body 20 containing the contents whose cooking time is 2 minutes. faster than

Meanwhile, in the present invention, the film side bonding portion 40PS of the hole-forming film 40 may be configured to be bonded to the upper edge bonding portion 22A of the packaging bag body 20, and the packaging bag containing the contents takes 1 minute to cook. The width (20WL) of the inner end (20HIE) where the hole-forming guide chamber (20HFC) of the body 20 starts is the hole-forming guide chamber (20HFC) of the packaging bag body (20) containing the contents for which the cooking time is 2 minutes. It is configured to be larger than the width (20WL) of the inner end (20HIE) at which is started, and the upper edge junction ( 22A) from the hole-forming guide chamber 20HFC to the end of the upper edge joint 22A in the packaging bag body 20 containing the contents for which the cooking time is 2 minutes. It is faster than the time for the pressure discharge hole 24 to be formed therebetween.

On the other hand, the distance between the outer end 20HOE at which the hole forming guide chamber 20HFC of the packaging bag body 20 containing the contents for which the cooking time is 1 minute ends and the end 22PE of the upper edge joint 22A is 2 minutes. It is configured to be smaller than the distance between the outer end 20HOE at which the hole-forming guide chamber 20HFC of the packaging bag body 20 containing the powdered contents ends and the end 22PE of the upper edge junction 22A, so that the cooking time is reduced. The time at which the pressure discharge hole 24 is formed in the packaging bag body 20 containing the contents of 1 minute is the time during which the pressure discharge hole 24 is formed in the packaging bag body 20 containing the contents whose cooking time is 2 minutes. faster than

Therefore, the present invention is a hole-forming guide chamber (20HFC) that goes further into the area of the edge joint 22 from the inner edge joint end 22SE where the edge joint 22 starts in the accommodating portion 20CH of the packaging bag body 20. When pressure is generated when the contents are cooked by putting the packaging bag body 20 in a microwave oven, the pressure enters the hole-forming guide chamber 20HFC and the easy-peel layer of the hole-forming film 40 ( 42) is configured to separate from the second packaging bag sheet 20B or the first packaging bag sheet 20A to form a pressure release hole 24 in the packaging bag body 20, and the hole-forming guide chamber 20HFC ) The width (20WL) of the inner end (20HIE) where the starting point is adjusted according to the cooking time of the contents contained in the accommodating part (20CH) inside the packaging bag body 20, and the hole-forming guide chamber (20HFC) ends. The distance between the outer end 20HOE and the end 22PE of the edge joint 22 is also adjusted according to the cooking time of the contents contained in the accommodation part 20CH inside the packaging bag body 20, so that the packaging bag body ( 20) into the microwave oven to cook the contents contained in the accommodating unit 20CH, the pressure generated in the accommodating unit 20CH moves the easy peel layer 42 from the area of the hole-forming guide chamber 20HFC to the edge joint ( Compatibility in packaging various types of contents (food) with different cooking times by adjusting the time of falling to the end (22PE) of 22) to adjust the time for forming the pressure release hole 24 in the packaging bag body 20 It has an effect that can be used freely.

On the other hand, according to the present invention, when the guide hole 26 for forming the pressure discharge hole is provided in a part of the edge joint 22 of the packaging bag body 20, the inner edge joint end where the edge joint 22 starts. The distance 26LL between the pressure discharge hole forming guide holes 26 at 22SE is adjusted according to the cooking time of the contents contained in the accommodating part 20CH inside the packaging bag body 20, and the packaging bag body When the contents contained in the container 20CH are cooked by putting 20 into a microwave oven, the easy-peel layer 42 of the hole forming film 40 moves through the packaging bag body 20 due to the pressure generated in the container 20CH. The time at which the pressure discharge hole 24 is formed in the packaging bag body 20 by controlling the time of falling from the inner edge joint end 22SE where the edge joint 22 of ) to the guide hole 26 for forming the pressure discharge hole is adjusted. configured to be regulated.

When the distance 26LL between the inner edge joint end 22SE where the edge joint portion 22 starts and the guide hole 26 forming the pressure discharge hole becomes longer, the edge joint portion 22 of the packaging bag body 20 The time for forming the pressure discharge hole 24 becomes longer, and the distance 26LL between the pressure discharge hole formation guide hole 26 at the inner edge joint end 22SE where the edge joint 22 starts is When the pressure is shortened, the time for forming the pressure discharge hole 24 in the edge joint 22 of the packaging bag body 20 is shortened. The time at which the discharge hole 24 is formed is controlled.

In the present invention, an embodiment is shown in which the film side bonding portion 40PS of the hole forming film 40 is bonded to the side edge bonding portion 22C of the packaging bag body 20. In this case, the side edge bonding portion 22C starts. The distance 26LL between the inner edge joint end 22SE and the guide hole 26 forming the pressure discharge hole is adjusted according to the cooking time of the contents contained in the accommodation part 20CH inside the packaging bag body 20, When the packaging bag body 20 is put into a microwave oven and the contents contained in the accommodating part 20CH are cooked, the easy-peel layer 42 is connected to the side edge joint 22C by the pressure generated in the accommodating part 20CH. The falling time from the starting inner edge joining end 22SE to the end 22PE of the side edge joining portion 22C is adjusted so that the time at which the pressure discharge hole 24 is formed in the packaging bag body 20 is adjusted.

For example, when the cooking time of the contents (food) contained in the accommodation part 20CH inside the packaging bag body 20 is 1 minute and the cooking time is 2 minutes, the packaging bag body containing the contents having a cooking time of 1 minute ( The distance 26LL between the inner edge joint end 22SE of the edge joint 22 of 20) and the guide hole 26 forming the pressure discharge hole is the edge joint of the packaging bag body 20 containing the contents having a cooking time of 2 minutes. It is configured to be larger than the distance 26LL between the inner edge joint end 22SE of 22 and the guide hole 26 forming the pressure discharge hole, and the cooking time is 1 minute to the packaging bag body 20 containing the contents. The time for forming the pressure discharge hole 24 is faster than the time for forming the pressure discharge hole 24 in the packaging bag body 20 containing the contents for which the cooking time is 2 minutes.

In the present invention, an embodiment is shown in which the film side bonding portion 40PS of the hole-forming film 40 is bonded to the side edge bonding portion 22C of the packaging bag body 20, and the packaging bag body containing the contents having a cooking time of 1 minute. The distance 26LL between the inner edge joint end 22SE of the 20 and the guide hole 26 forming the pressure discharge hole is the inner edge joint end 22SE of the packaging bag body 20 containing the contents having a cooking time of 2 minutes. The pressure discharge hole is configured to be larger than the distance 26LL between the guide holes 26, and the cooking time is 1 minute. In the packaging bag body 20 containing the contents, the pressure discharge hole The time at which the pressure discharge hole 24 is formed between the formation guide holes 26 is the pressure discharge hole formation guide hole 26 from the inner edge joint end 22SE in the packaging bag body 20 containing the contents for which the cooking time is 2 minutes. ) is faster than the time for forming the pressure discharge hole 24 between them.

Therefore, in the present invention, the distance 26LL between the guide hole 26 forming the pressure discharge hole at the inner edge joint end 22SE where the edge joint 22 starts is the accommodating portion 20CH inside the packaging bag body 20. ) is adjusted according to the cooking time of the contents contained in the container, and when the packaging bag body 20 is put into a microwave oven and the contents contained in the container 20CH are cooked, the pressure generated in the container 20CH The time for the easy-peel layer 42 of the forming film 40 to fall from the inner edge joint end 22SE where the edge joint 22 of the packaging bag body 20 starts to the pressure discharge hole formation guide hole 26 is adjusted. Since the time at which the pressure discharge hole 24 is formed in the packaging bag body 20 is configured to be adjusted, it has an effect that it can be used interchangeably in packaging various types of contents (food) with different cooking times.

In addition, in the present invention, when the pressure discharge hole forming cutout 28 is provided in a part of the edge joint 22 of the packaging bag body 20, the inner edge joint end 22SE at which the edge joint 22 starts ), the distance 28LL between the pressure discharge hole forming cutouts 28 is adjusted according to the cooking time of the contents contained in the accommodating part 20CH inside the packaging bag body 20, so that the packaging bag body 20 ) into the microwave oven to cook the contents contained in the accommodating unit 20CH, the inner edge joint end of the easy peel layer 42 where the edge joint 22 starts due to the pressure generated in the accommodating unit 20CH ( 22SE) to the pressure discharge hole forming cutout 28 is adjusted so that the time when the pressure discharge hole 24 is formed in the packaging bag body 20 is adjusted.

When the distance 28LL between the inner edge joint end 22SE where the edge joint portion 22 starts and the pressure discharge hole forming cutout 28 becomes longer, the edge joint portion 22 of the packaging bag body 20 The time for forming the pressure discharge hole 24 becomes longer, and the distance 28LL between the pressure discharge hole forming cutout 28 at the inner edge joint end 22SE where the edge joint 22 starts is When it is shortened, the pressure is discharged from the edge joint 22 of the packaging bag body 20 by the principle that the time for forming the pressure discharge hole 24 in the edge joint 22 of the packaging bag body 20 is shortened. The time at which the hole 24 is formed is configured to be controlled.

In the present invention, an embodiment is shown in which the film side bonding portion 40PS of the hole-forming film 40 is bonded to the side edge bonding portion 22C of the packaging bag body 20, and the packaging bag body containing the contents having a cooking time of 1 minute. The distance 28LL between the inner rim joining end 22SE of 20 and the pressure discharge hole forming cutout 28 is the inner rim joining end 22SE of the packaging bag body 20 containing the contents having a cooking time of 2 minutes. is configured to be smaller than the distance 28LL between the pressure discharge hole formation cutouts 28, and the pressure discharge hole from the inner edge joint end 22SE in the packaging bag body 20 containing the contents of which the cooking time is 1 minute The time at which the pressure discharge hole 24 is formed between the formed cutouts 28 is the pressure discharge hole formed cutout 28 from the inner edge joint end 22SE in the packaging bag body 20 containing the contents for which the cooking time is 2 minutes. ) is faster than the time for forming the pressure discharge hole 24 between them.

Therefore, in the present invention, the distance 28LL between the pressure discharge hole forming cutout 28 at the inner edge joint end 22SE where the edge joint 22 starts is the accommodation portion 20CH inside the packaging bag body 20. ) is adjusted according to the cooking time of the contents contained in the container, and when the packaging bag body 20 is put into a microwave oven and the contents contained in the container 20CH are cooked, the pressure generated in the container 20CH The time for the easy-peel layer 42 of the forming film 40 to fall from the inner edge joint end 22SE where the edge joint 22 of the packaging bag body 20 starts to the pressure discharge hole forming cutout 28 is adjusted. Since the time at which the pressure discharge hole 24 is formed in the packaging bag body 20 is configured to be adjusted, it has an effect that it can be used interchangeably in packaging various types of contents (food) with different cooking times.

In the above, specific embodiments of the present invention have been described in detail. However, the spirit and scope of the present invention is not limited to these specific embodiments, and it is common knowledge in the technical field to which the present invention belongs that various modifications and variations are possible without changing the gist of the present invention. Anyone who has it will understand.

Therefore, since the embodiments described above are provided to completely inform those skilled in the art of the scope of the invention to which the present invention belongs, it should be understood that it is illustrative in all respects and not limiting, The invention is only defined by the scope of the claims.

20. Packing bag body 20A. 1st packaging bag sheet
20B. 2nd packaging bag sheet 22. Border joint
22A. Upper rim joint 22B. lower rim joint
22C. Side rim junction 24. Pressure release hole
26. Pressure release hole formation guide hole 28. Pressure release hole formation cutout
30. bottom sheet 32. bottom sheet joint
40. Hole forming film 40PS. film side joint
42. Easy Peel Layer 43. Fusion Bonding Layer

Claims (12)

A packaging bag in which the first packaging bag sheet 20A and the second packaging bag sheet 20B facing each other are bonded to each other by an edge joint 22 and have a receiving portion 20CH containing food for microwave cooking therein. body 20;
A film side bonding portion (40PS) adjacent to at least one end of parts bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B of the packaging bag body 20 and adjacent to both ends includes a hole forming film 40 bonded together to the edge joint 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B,
The bonding strength of bonding the left and right film side bonding parts 40PS of the hole forming film 40 to the edge bonding area 22 of the first packaging bag sheet 20A and the second packaging bag sheet 20B is It is configured to be smaller than the bonding strength of the edge joint 22 directly bonding the first packaging bag sheet 20A and the second packaging bag sheet 20B,
The hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, and the fusion bonding layer 43 of the hole forming film 40 is the first packaging bag sheet 20A. ) or the contents of the easy-peel layer 42 of the hole-forming film 40 bonded to the inner surface of the second packaging bag sheet 20B contained in the accommodating portion 20CH inside the packaging bag body 20 side, and the second packaging bag sheet 20B or the first packaging bag sheet 20A is bonded by the edge joint 22 while wrapping the contents to form the first packaging bag sheet 20A. And the packaging bag body 20 is formed by the second packaging bag sheet 20B,
In the packaging bag body 20, the hole-forming guide chamber 20HFC further enters the area of the edge joint 22 from the inner edge joint end 22SE where the edge joint 22 starts in the accommodating portion 20CH. Further, when pressure is generated when the packaging bag body 20 is put into a microwave oven to cook the contents, the fusion bonding layer 43 of the hole-forming film 40 forms the first packaging bag sheet 20A or Without falling from the second packaging bag sheet 20B, the pressure enters the hole-forming guide chamber 20HFC so that the easy-peel layer 42 is formed on the second packaging bag sheet 20B or the first packaging bag sheet 20A. ) to form a pressure discharge hole 24 in the packaging bag body 20,
The width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) starts is adjusted according to the cooking time of the contents contained in the container (20CH) inside the packaging bag body (20). The distance 22LL between the outer end 20HOE at which the hole-forming guide chamber 20HFC ends and the end 22PE of the edge joint 22 is also contained in the accommodating part 20CH inside the packaging bag body 20. It is adjusted according to the cooking time of the contents in the container, and when the packaging bag body 20 is put into a microwave oven and the contents contained in the container 20CH are cooked, the pressure generated in the container 20CH The pressure discharge hole 24 is formed in the packaging bag body 20 by adjusting the time at which the easy peel layer 42 falls from the hole forming guide chamber 20HFC area to the end 22PE of the edge joint 22. It is configured to adjust the time to be
When the width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) starts becomes longer, the pressure is applied from the hole-forming guide chamber (20HFC) to the edge joint (22) of the packaging bag body (20). When the time for forming the discharge hole 24 is shortened and the width (20WL) of the inner end (20HIE) at which the hole-forming guide chamber (20HFC) starts is shortened, the hole-forming guide chamber (20HFC) begins with the packaging bag body. The pressure discharge hole 24 is formed in the edge joint 22 of the packaging bag body 20 by the principle that the time for the pressure discharge hole 24 to be formed in the edge joint 22 of (20) increases. The formation time is adjusted, and when the distance 22LL between the outer end 20HOE at which the hole-forming guide chamber 20HFC ends and the end 22PE of the edge joint 22 becomes longer, the packaging bag body 20 The time for forming the pressure discharge hole 24 in the edge joint 22 of ) becomes longer, and the outer end 20HOE at which the hole forming guide chamber 20HFC ends and the end 22PE of the edge joint 22 ) of the packaging bag body 20 by the principle that when the distance 22LL between The microwave food packaging bag, characterized in that the time during which the pressure discharge hole 24 is formed in the edge joint 22 is adjusted.
According to claim 1,
The hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, so that the hole forming film 40 is attached to the packaging bag body 20 by the fusion bonding layer 43. A part of the easy-peel layer 42 integrally bonded to the inner surface of the first packaging bag sheet 20A or the second packaging bag sheet 20B and provided at the film side bonding part 40PS is part of the edge It is bonded to the inner surface of the second packaging bag sheet 20B or the first packaging bag sheet 20A in the bonding portion 22 area, thereby forming the film side bonding portion 40PS of the hole-forming film 40 into the first packaging bag sheet 20B. The bonding strength of the first packaging bag sheet 20A and the second packaging bag sheet 20B bonded to the edge joint 22 area is higher than that of the first packaging bag sheet 20A and the second packaging bag sheet 20B. Microwave food packaging bag, characterized in that configured to be smaller than the bonding strength of the edge bonding portion 22 for bonding.
According to claim 2,
Among the edge joint portions 22 of the packaging bag body 20, the film side joint portions 40PS on both left and right sides of the hole forming film 40, the first packaging bag sheet 20A, and the second packaging bag sheet ( The left and right side edge joints 22C to which 20B) is joined are composed of multi-layer joints, and a part of the easy-peel layer 42 in the film side joint 40PS of the hole-forming film 40 is attached to the first package. A part of the fusion bonding layer 43 bonded to the inner surface of the back sheet 20A and located at the film side joint 40PS of the hole forming film 40 is the inner surface of the second packaging bag sheet 20B. When bonded to, the multi-layer bonding part is composed of the first packaging bag sheet 20A, the second packaging bag sheet 20B, the easy peel layer 42, and the fusion bonding layer 43. Range food packaging bag.
According to claim 3,
In the state where microwave food is contained and packaged in the accommodating part 20CH inside the packaging bag body 20, the packaging bag body 20 is put into a microwave oven and cooked while the inside of the packaging bag body 20 Pressure is generated in the accommodating portion 20CH, and the hole-forming film 40 is formed by the easy-peel layer 42 at the multi-layer junction of the first packaging bag sheet 20A and the second packaging bag sheet 20B. Since the left and right film side junctions 40PS are joined, the easy-peel layer 42 is moved from the first packaging bag sheet 20A by the pressure generated in the accommodating portion 20CH inside the packaging bag body 20. Microwave food packaging bag, characterized in that configured to form a pressure discharge hole 24 communicating with the inside and outside of the packaging bag body 20 while being opened.
According to claim 4,
In a part of the edge bonding part 22 of the packaging bag body 20, both left and right film side bonding parts 40PS of the hole forming film 40 and both sides of the edge bonding part 22 of the packaging bag body 20 A microwave food packaging bag, characterized in that it is provided with a pressure discharge hole forming guide hole 26 passing through.
According to claim 4,
In a part of the edge joint 22 of the packaging bag body 20, both sides of the left and right film side joints 40PS of the hole forming film 40 and the side edge joints 22C of the packaging bag body 20 ) and a pressure discharge hole forming cutout 28 that penetrates both sides of the packaging bag body 20 and is simultaneously opened to the end of the side edge junction 22C of the packaging bag body 20. Microwave food packaging bag.
According to claim 1,
A bottom sheet 30 is disposed between the lower inner surfaces of the two facing first packaging bag sheets 20A and the second packaging bag sheet 20B, and the bottom adjacent to both ends of the bottom sheet 30. The microwave food packaging bag, characterized in that the sheet joint (32) is configured to be joined together to the lower edge joint (22B) of the two sheets of the first packaging bag sheet (20A) and the second packaging bag sheet (20B).
delete According to claim 1,
The hole forming film 40 is configured to include an easy peel layer 42 and a fusion bonding layer 43, and the fusion bonding layer 43 of the hole forming film 40 is the first packaging bag sheet 20A. ) or the contents of the easy-peel layer 42 of the hole-forming film 40 bonded to the inner surface of the second packaging bag sheet 20B contained in the accommodating portion 20CH inside the packaging bag body 20 facing the second packaging bag sheet 20B or the first packaging bag sheet 20A, and bonded to the inner surface of the second packaging bag sheet 20B and the first packaging bag sheet 20A. ) is bonded by the edge joint 22 while surrounding the contents, so that the packaging bag body 20 is formed by the first packaging bag sheet 20A and the second packaging bag sheet 20B, and the packaging bag body 20 is formed. When the bag body 20 is put into a microwave oven to cook the contents, when pressure is generated in the accommodating part 20CH inside the packaging bag body 20, the fusion bonding layer 43 of the hole forming film 40 Silver does not fall off the first packaging bag sheet 20A or the second packaging bag sheet 20B, and the easy-peel layer 42 moves from the second packaging bag sheet 20B or the first packaging bag sheet 20A by the pressure. ) The microwave food packaging bag, characterized in that configured to form a pressure discharge hole 24 in the packaging bag body 20 while falling from.
delete delete According to claim 4,
In a part of the edge bonding part 22 of the packaging bag body 20, both left and right film side bonding parts 40PS of the hole forming film 40 and both sides of the edge bonding part 22 of the packaging bag body 20 A pressure discharge hole forming guide hole 26 is provided or both sides of both left and right film side junctions 40PS of the hole forming film 40 and both sides of the edge junction 22 of the packaging bag body 20 A cutout 28 is provided to form a pressure discharge hole that penetrates and is open to the end of the edge joint 22 of the packaging bag body 20 at the same time.
When the guide hole 26 for forming the pressure discharge hole is provided in a part of the edge joint 22 of the packaging bag body 20, the inner edge joint end 22SE at which the edge joint 22 starts The distance 26LL between the pressure discharge hole formation guide holes 26 is adjusted according to the cooking time of the contents contained in the accommodating part 20CH inside the packaging bag body 20, so that the packaging bag body 20 is put into a microwave oven to cook the contents contained in the accommodating part 20CH, the pressure generated in the accommodating part 20CH causes the easy peel layer 42 to form an inner edge at which the edge joining part 22 starts. The time of falling from the junction end 22SE to the guide hole 26 for forming the pressure discharge hole is adjusted so that the time when the pressure discharge hole 24 is formed in the packaging bag body 20 is adjusted.
When the distance 26LL between the inner edge joint end 22SE where the edge joint portion 22 starts and the guide hole 26 forming the pressure discharge hole becomes longer, the edge joint portion 22 of the packaging bag body 20 The time for forming the pressure discharge hole 24 becomes longer, and the distance 26LL between the pressure discharge hole formation guide hole 26 at the inner edge joint end 22SE where the edge joint 22 starts is When it is shortened, the time for forming the pressure discharge hole 24 in the edge joint 22 of the packaging bag body 20 is shortened. The time at which the pressure discharge hole 24 is formed is controlled,
When the pressure discharge hole forming cutout 28 is provided in a part of the edge joint 22 of the packaging bag body 20, the inner edge joint end 22SE where the edge joint 22 starts The distance 28LL between the cutouts 28 forming the pressure discharge hole is adjusted according to the cooking time of the contents contained in the accommodating part 20CH inside the packaging bag body 20, so that the packaging bag body 20 is put into a microwave oven to cook the contents contained in the accommodating part 20CH, the pressure generated in the accommodating part 20CH causes the easy peel layer 42 to form an inner edge at which the edge joining part 22 starts. It is configured so that the time for the pressure discharge hole 24 to be formed in the packaging bag body 20 is controlled by adjusting the time to fall from the joint end 22SE to the pressure discharge hole forming cutout 28,
When the distance 28LL between the inner edge joint end 22SE where the edge joint portion 22 starts and the pressure discharge hole forming cutout 28 becomes longer, the edge joint portion 22 of the packaging bag body 20 The time for forming the pressure discharge hole 24 becomes longer, and the distance 28LL between the pressure discharge hole forming cutout 28 at the inner edge joint end 22SE where the edge joint 22 starts is When it is shortened, the time for forming the pressure discharge hole 24 in the edge joint 22 of the packaging bag body 20 is shortened. A microwave food packaging bag, characterized in that the time during which the pressure discharge hole 24 is formed is controlled.

Images