A microwaveable food packaging bag for an explosion-proof bag

Abstract

The utility model discloses a food packaging bag of microwaveable of anti -explosion bag relates to food packaging technical field. The utility model discloses a bag body and exhaust mechanism, is equipped with the preset window on the bag body, and the sealing film of covering preset window is pasted fixed on the bag body outer surface, and the exhaust mechanism includes the bag in seal ring, and the bag in seal ring is equipped with annular first heat seal strip, and the bag in seal ring is fixed in the bag body inboard and with the preset window position opposite, and the bag in seal ring is concentric and is equipped with the venting sleeve. The utility model discloses a bag body is set up the preset window, and pastes the sealing film outside the preset window, can form a weak point on the packaging bag, can open the sealing film and realize the exhaust function after the pressure in the bag reaches a certain degree, plays the role of safety valve, realizes the automatic exhaust, avoids the emergence of the problem of the bag explosion, and need not cut open the package in advance, convenient operation and avoid pollution.

Description

Technical Field

[0001] This utility model belongs to the field of food packaging technology, and in particular relates to a microwaveable food packaging bag that is explosion-proof. Background Technology

[0002] With the fast pace of modern life, microwaveable instant foods are becoming increasingly popular due to their convenience. The most prominent problem with traditional microwaveable food packaging is the risk of bursting caused by pressure buildup. When sealed food is heated in a microwave oven, the moisture in the food quickly turns into steam, causing the internal pressure of the packaging to rise sharply.

[0003] For example, when frozen corn is microwaved at 800W for about 4 minutes, the pressure inside the packaging bag can reach up to 6.10MPa. Such high internal pressure can easily cause ordinary packaging bags to burst, which can not only cause food to splatter and contaminate the inside of the microwave oven, but may also cause safety accidents such as burns.

[0004] The risk of food bags bursting can limit the types of microwaveable foods, the amount of food packaged, and the packaging bags themselves, thus affecting their diversified development.

[0005] To address this issue, existing technologies primarily employ two methods: one is to require consumers to manually tear open the packaging bag before heating, but this can easily cause food to spill, especially for foods containing soup; the other is to install simple vents on the packaging, but such designs often cannot accurately control the timing and amount of venting, affecting the heating effect of the food. Summary of the Invention

[0006] The purpose of this utility model is to provide a microwaveable food packaging bag that is explosion-proof. By setting a preset window on the bag body and attaching a sealing film to the outside of the preset window, a weak point can be formed on the packaging bag. When the pressure inside the bag reaches a certain level, the sealing film can be lifted to realize the venting function, which acts as a safety valve, realizes automatic venting, avoids the problem of bag explosion, and does not require pre-cutting the packaging, which is convenient to operate and avoids contamination.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a microwave-safe food packaging bag that is explosion-proof and heatable, including a bag body and an exhaust mechanism;

[0009] The bag body is provided with a preset window, and a sealing film covering the preset window is pasted and fixed on the outer surface of the bag body;

[0010] The exhaust mechanism includes an inner sealing ring on the bag;

[0011] The inner sealing ring of the bag is provided with a first annular heat sealing strip. The inner sealing ring is fixed to the inside of the bag body by the first heat sealing strip and is opposite to the preset window position. A ventilation sleeve is provided concentrically inside the inner sealing ring. A buoyancy airbag is fixed between the inner sealing ring and the ventilation sleeve. Part of the buoyancy airbag is located outside the inner sealing ring to form an expansion part.

[0012] Furthermore, the venting mechanism also includes an outer sealing ring, on which an annular second heat-sealing strip is provided. The outer sealing ring is fixed to the outer surface of the bag body by the second heat-sealing strip. The outer sealing ring covers the outside of the sealing film. The diameter of the second heat-sealing strip is larger than the outer diameter of the sealing film, and the inner diameter of the second heat-sealing strip is smaller than the outer diameter of the sealing film.

[0013] Furthermore, the inner sealing ring of the bag is composed of a circular ring plate and a surrounding edge disposed on the circular ring plate, and the inner wall of the ventilation sleeve is flush with the inner hole of the circular ring plate.

[0014] Furthermore, a heating section is formed on the outer side of the annular plate extending beyond the perimeter, and the first heat-sealing strip is disposed at the heating section of the annular plate.

[0015] Furthermore, the structural features of the first heat-sealing strip are consistent with those of the second heat-sealing strip, and the inner and outer diameters and thickness of the first heat-sealing strip are consistent with those of the second heat-sealing strip, respectively.

[0016] Furthermore, the buoyancy airbag has a circular structure, and an air passage is formed between the inner hole of the buoyancy airbag, the inner hole of the inner sealing ring of the bag, and the inner hole of the outer sealing ring of the bag, and the sealing membrane blocks the air passage.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model creates a weak point in the packaging bag by setting a preset window on the bag body and attaching a sealing film to the outside of the preset window. When the pressure inside the bag reaches a certain level, the sealing film can be lifted to realize the venting function, which acts as a safety valve, realizes automatic venting, avoids the problem of bag bursting, and does not require pre-cutting the packaging, which is convenient to operate and avoids contamination.

[0019] 2. This utility model, through the design of a buoyancy airbag, can float on soup-type foods, raising the height of the sealing film, preventing the soup-type foods from contaminating the sealing film, and avoiding the problem of soup overflowing during heating.

[0020] 3. This utility model, through the design of the outer sealing ring, can movably press the edge of the sealing film, preventing the sealing film from being lifted due to external force. In addition, during the processing, the inner sealing ring and the outer sealing ring can be heat-sealed as a whole, which facilitates the application of heat sealing force and improves the stability of heat sealing.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a microwave-heatable food packaging bag, an explosion-proof bag according to the present invention.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Bag body, 2-Inner sealing ring, 3-Outer sealing ring, 101-Preset window, 102-Sealing film, 201-First heat seal strip, 202-Ventilation sleeve, 203-Circular ring plate, 204-Side rim, 205-Buoyancy airbag, 206-Inflation part, 301-Second heat seal strip. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 As shown, this utility model is a microwave-safe food packaging bag that is explosion-proof and can be heated, including a bag body 1 and an exhaust mechanism.

[0028] The bag body 1 is provided with a preset window 101, and a sealing film 102 covering the preset window 101 is pasted and fixed on the outer surface of the bag body 1;

[0029] The venting mechanism includes an inner sealing ring 2;

[0030] The inner sealing ring 2 is provided with a first annular heat sealing strip 201. The inner sealing ring 2 is fixed to the inside of the bag body 1 by the first heat sealing strip 201 and is opposite to the position of the preset window 101. A ventilation sleeve 202 is provided concentrically inside the inner sealing ring 2. A buoyancy airbag 205 is fixed between the inner sealing ring 2 and the ventilation sleeve 202. Part of the buoyancy airbag 205 is located outside the inner sealing ring 2 to form an expansion part 206.

[0031] Among them, such as Figure 1As shown, the venting mechanism also includes an outer sealing ring 3, on which a second annular heat sealing strip 301 is provided. The outer sealing ring 3 is fixed to the outer surface of the bag body 1 by the second heat sealing strip 301. The outer sealing ring 3 covers the outside of the sealing film 102. The diameter of the second heat sealing strip 301 is larger than the outer diameter of the sealing film 102, and the inner diameter of the second heat sealing strip 301 is smaller than the outer diameter of the sealing film 102.

[0032] Among them, such as Figure 1 As shown, the inner sealing ring 2 of the bag is composed of a circular ring plate 203 and a surrounding edge 204 set on the circular ring plate 203, and the inner wall of the ventilation sleeve 202 is flush with the inner hole of the circular ring plate 203.

[0033] Among them, such as Figure 1 As shown, the outer side of the annular plate 203 extends beyond the perimeter 204 to form a heating section, and the first heat sealing strip 201 is disposed at the heating section position of the annular plate 203.

[0034] Among them, such as Figure 1 As shown, the structural features of the first heat sealing strip 201 are consistent with those of the second heat sealing strip 301, and the inner and outer diameters and thicknesses of the first heat sealing strip 201 are consistent with those of the second heat sealing strip 301.

[0035] Among them, such as Figure 1 As shown, the buoyancy airbag 205 has a circular structure. An air passage is formed between the inner hole of the buoyancy airbag 205, the inner hole of the inner sealing ring 2, and the inner hole of the outer sealing ring 3. The sealing membrane 102 blocks the air passage.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A microwaveable food packaging bag for an explosion-proof bag, comprising a bag body (1), characterized in that: It also includes the exhaust system; The bag body (1) is provided with a preset window (101), and a sealing film (102) covering the preset window (101) is pasted and fixed on the outer surface of the bag body (1). The exhaust mechanism includes an inner bag sealing ring (2); The inner sealing ring (2) is provided with an annular first heat sealing strip (201). The inner sealing ring (2) is fixed to the inside of the bag body (1) by the first heat sealing strip (201) and is opposite to the position of the preset window (101). A ventilation sleeve (202) is provided concentrically inside the inner sealing ring (2). A buoyancy airbag (205) is fixed between the inner sealing ring (2) and the ventilation sleeve (202). Part of the buoyancy airbag (205) is located outside the inner sealing ring (2) to form an expansion part (206).

2. A microwaveable food packaging bag for an explosion-proof bag according to claim 1, characterized by The exhaust mechanism also includes an outer sealing ring (3), on which a second heat sealing strip (301) is provided. The outer sealing ring (3) is fixed to the outer surface of the bag body (1) by the second heat sealing strip (301). The outer sealing ring (3) covers the outside of the sealing film (102). The diameter of the second heat sealing strip (301) is larger than the outer diameter of the sealing film (102), and the inner diameter of the second heat sealing strip (301) is smaller than the outer diameter of the sealing film (102).

3. A microwaveable food packaging bag for an explosion-proof bag according to claim 1, characterized by The inner sealing ring (2) of the bag is composed of a circular ring plate (203) and a surrounding edge (204) provided on the circular ring plate (203). The inner wall of the ventilation sleeve (202) is flush with the inner hole of the circular ring plate (203).

4. The microwave-safe food packaging bag according to claim 3, characterized in that, The outer side of the annular plate (203) extends beyond the perimeter (204) to form a heating section, and the first heat-sealing strip (201) is disposed at the heating section position of the annular plate (203).

5. A microwave-safe food packaging bag according to claim 2, characterized in that, The structural features of the first heat sealing strip (201) are consistent with those of the second heat sealing strip (301), and the inner and outer diameters and thickness of the first heat sealing strip (201) are consistent with those of the second heat sealing strip (301).

6. The microwave-safe food packaging bag according to claim 5, characterized in that, The buoyancy airbag (205) has a circular structure. An air passage is formed between the inner hole of the buoyancy airbag (205), the inner hole of the inner sealing ring (2) of the bag, and the inner hole of the outer sealing ring (3) of the bag. The sealing membrane (102) blocks the air passage.

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