Food packaging bag resistant to high-temperature boiling

Abstract

The utility model relates to the technical field of food packaging bags, and discloses a high-temperature boiling resistant food packaging bag which comprises a packaging bag body and a sealing device, the packaging bag body comprises a packaging bag inner bag and a packaging bag outer bag, and the sealing device is located on the side wall of one side of the packaging bag body and extends into the packaging bag body. According to the packaging bag, the sealing device is arranged on the side wall of one side of the packaging bag body, so that when the pressure borne by the sealing bag is too large or the interior of the sealing bag expands, the sealing opening of the packaging bag body can be prevented from being exploded; the packaging bag body has the advantages of being high in tensile strength, impact strength, rigidity, obdurability, good in transparency and the like by adding the CPP thin film layer into the packaging bag body, and the packaging bag body has the advantages of being good in transparency, good in moisture resistance, excellent in heat resistance, easy to heat and seal and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bags, in particular to a food packaging bag resistant to high-temperature boiling. Background Art

[0002] At present, the packaging bag containing food can be heated by microwave oven, steamer or boiling. During the heating process, the food in the packaging bag will evaporate water, and the evaporation of water will cause the packaging bag to expand. As the heating time increases, the packaging bag will over-expand and explode, posing a safety hazard. At the same time, the explosion also causes the food to splash out, resulting in food waste; the heated food packaging bag contains hot air, and the moment the packaging bag is opened, the hot air will rush out and blow towards the hands, causing hand burns; in addition, the existing packaging bag is provided with a seal on the inner side of the bag opening, and the bag is manually sealed during packaging, and another type is machine sealed. When the food is loaded, the food is more likely to touch the bag opening and the seal, thereby affecting the sealing of the seal, which is likely to cause food leakage and deterioration. Therefore, a food packaging bag that can withstand high temperature heating is urgently needed.

[0003] The application number is 202010990714.7, which discloses an antioxidant, high-temperature cooking-resistant, and food freshness-extending food packaging bag. The inner packaging bag is located inside the outer packaging bag, and the inner packaging bag adopts vacuum packaging of food. The inner packaging bag includes an aluminum oxide layer, a BOPP film layer, and a CPP film layer. The outer packaging bag includes a metal foil layer, a first ultra-low density polyethylene layer, and a second ultra-low density polyethylene layer. This type of food packaging bag mainly includes an outer packaging bag and an inner packaging bag. An ice bag groove for installing an ice bag is provided between the outer packaging bag and the inner packaging bag. The installation of the ice bag can preserve the food packaged in the inner packaging bag. Through the application of the aluminum oxide layer, the BOPP film layer, the CPP film layer, the metal foil layer, the first ultra-low density polyethylene layer, and the second ultra-low density polyethylene layer, this type of food packaging bag has the advantages of quickly and efficiently producing transparent, high mechanical strength, and high-temperature cooking-resistant packaging bags.

[0004] Such a design still has shortcomings. The packaging bag does not have a good sealing device at the seal. During use, if the pressure on the sealed bag is too great and the seal is not completely sealed, the sealed bag will easily burst. Summary of the invention

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model is a high temperature boiling resistant food packaging bag, comprising a packaging bag body and a sealing device, wherein the packaging bag body comprises an inner bag and an outer bag, and the sealing device is located on a side wall of the packaging bag body and extends to the inside of the packaging bag body.

[0007] Furthermore, a transparent ring is provided just below the packaging bag body near the sealing device, through which the state and type of the food inside can be observed, and an ice bag groove is provided at one end of the packaging bag body away from the transparent ring, and the ice bag groove is filled with water and refrigerant.

[0008] Furthermore, the inner bag of the packaging bag includes an aluminum oxide layer, which forms a hard and dense aluminum oxide film with good corrosion resistance and insulation properties. A BOPP film layer is provided on the side of the aluminum oxide layer away from the interior of the packaging bag body, and the BOPP film layer has the advantages of high tensile strength, impact strength, rigidity, toughness and good transparency.

[0009] Furthermore, a CPP film layer is provided on the side of the BOPP film layer away from the aluminum oxide layer. The CPP film layer has the characteristics of good transparency, good moisture barrier, excellent heat resistance, easy heat sealing, etc., and a packaging bag outer bag is fixedly installed on the side of the CPP film layer away from the BOPP film layer.

[0010] Furthermore, the outer bag of the packaging bag includes a metal foil layer, which can protect the food from the influence of oxygen, moisture, light and microorganisms, extend the shelf life of the food, and prevent the loss of food taste and nutrients, maintain freshness and taste, and the end of the metal foil layer away from the CPP film layer is provided with a first ultra-low density polyethylene layer and a second ultra-low density polyethylene layer.

[0011] Furthermore, the sealing device comprises a sealing cover and a sealing ring, a sealing ring is fixedly installed inside the sealing cover, and a plurality of evenly arranged wear-resistant grooves are arranged around the outer side of the sealing cover.

[0012] Furthermore, the sealing ring and the packaging bag body are connected to each other and extend to the interior of the packaging bag body. An inner rotating thread is provided on the outer side wall of the sealing ring, and an outer rotating thread is provided on the inner side wall of the sealing cover. The outer rotating thread and the inner rotating thread are matched and installed to seal the packaging bag body.

[0013] The utility model has the following beneficial effects:

[0014] (1) The utility model provides a sealing device on one side wall of the packaging bag body, which can prevent the sealing of the packaging bag body from bursting when the pressure on the sealed bag is too large or the inside of the sealed bag expands.

[0015] (2) The utility model adds a BOPP film layer inside the packaging bag body, so that the packaging bag body has the advantages of high tensile strength, impact strength, rigidity, toughness and good transparency. The utility model adds a CPP film layer inside the packaging bag body, so that the packaging bag body has the characteristics of good transparency, good moisture barrier, excellent heat resistance and easy heat sealing.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a complete structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the inner bag structure of the packaging bag of the utility model;

[0021] Figure 4 This is a schematic diagram of the outer bag structure of the packaging bag of the utility model;

[0022] Figure 5 This is a schematic diagram of the sealing cover structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the side structure of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. packaging bag body; 11. transparent ring; 12. ice bag slot; 13. aluminum oxide layer; 14. BOPP film layer; 15. CPP film layer; 16. metal foil layer; 17. first ultra-low density polyethylene layer; 18. second ultra-low density polyethylene layer; 2. sealing device; 21. sealing cover; 22. sealing ring; 23. sealing ring; 24. wear-resistant pattern; 25. external rotating thread; 26. internal rotating thread. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 6 As shown, the utility model is a high-temperature boiling-resistant food packaging bag, comprising a packaging bag body 1 and a sealing device 2. The packaging bag body 1 comprises an inner bag and an outer bag. The sealing device 2 is located on a side wall of the packaging bag body 1 and extends to the interior of the packaging bag body 1.

[0028] A transparent ring 11 is provided just below the packaging bag body 1 near the sealing device 2, through which the state and type of the food inside can be observed. An ice bag groove 12 is provided at one end of the packaging bag body 1 away from the transparent ring 11, and the ice bag groove 12 is filled with water and refrigerant.

[0029] The inner bag of the packaging bag includes an aluminum oxide layer 13, which forms a hard and dense aluminum oxide film with good corrosion resistance and insulation properties. A BOPP film layer 14 is provided on the side of the aluminum oxide layer 13 away from the inside of the packaging bag body 1. The BOPP film layer 14 has the advantages of high tensile strength, impact strength, rigidity, toughness and good transparency.

[0030] A CPP film layer 15 is provided on the side of the BOPP film layer 14 away from the aluminum oxide layer 13 . The CPP film layer 15 has the characteristics of good transparency, good moisture barrier, excellent heat resistance, and easy heat sealing. A packaging bag outer bag is fixedly installed on the side of the CPP film layer 15 away from the BOPP film layer 14 .

[0031] The outer bag of the packaging bag includes a metal foil layer 16, which can protect the food from the influence of oxygen, moisture, light and microorganisms, extend the shelf life of the food, and prevent the loss of food flavor and nutrients, maintain freshness and taste. The end of the metal foil layer 16 away from the CPP film layer 15 is provided with a first ultra-low density polyethylene layer 17 and a second ultra-low density polyethylene layer 18.

[0032] The sealing device 2 comprises a sealing cover 21 and a sealing ring 22 . A sealing ring 23 is fixedly installed inside the sealing cover 21 . A plurality of evenly arranged wear-resistant grooves 24 are arranged around the outer side of the sealing cover 21 .

[0033] The sealing ring 22 is connected to the packaging bag body 1 and extends to the inside of the packaging bag body 1. An inner rotating thread 26 is provided on the outer side wall of the sealing ring 22, and an outer rotating thread 25 is provided on the inner side wall of the sealing cover 21. The outer rotating thread 25 and the inner rotating thread 26 are matched and installed to seal the packaging bag body 1.

[0034] When in use, open the sealing cover, take out the food inside the packaging bag, squeeze out the air inside the packaging bag after taking it out, and rotate and tighten the sealing cover after squeezing to a certain extent. By arranging a sealing device on one side wall of the packaging bag body, when the sealing bag is subjected to excessive pressure or the inside expands, it can prevent the sealing of the packaging bag body from bursting;

[0035] An ice bag groove is provided on one side of the food packaging bag, which can keep the food inside the packaging bag fresh. The state and type of the food inside can be observed through the transparent circle away from the ice bag groove. By adding a BOPP film layer inside the packaging bag body, the packaging bag body has the advantages of high tensile strength, impact strength, rigidity, toughness and good transparency. By adding a CPP film layer inside the packaging bag body, the packaging bag body has the characteristics of good transparency, good moisture barrier, excellent heat resistance, easy heat sealing, etc.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high temperature boiling resistant food packaging bag, comprising a packaging bag body (1) and a sealing device (2), wherein the packaging bag body (1) comprises an inner packaging bag and an outer packaging bag, and is characterized in that: The sealing device (2) is located on a side wall of the packaging bag body (1) and extends into the interior of the packaging bag body (1); The sealing device (2) comprises a sealing cover (21) and a sealing ring (22); a sealing ring (23) is fixedly mounted inside the sealing cover (21); and a plurality of evenly arranged wear-resistant grooves (24) are arranged around the outer side of the sealing cover (21).

2. A high temperature boiling resistant food packaging bag according to claim 1, characterized in that: A transparent ring (11) is provided on the packaging bag body (1) just below the sealing device (2), and the transparent ring (11) is capable of observing the state and type of the food inside. An ice bag groove (12) is provided on one end of the packaging bag body (1) away from the transparent ring (11), and the ice bag groove (12) is filled with water and a refrigerant.

3. A high temperature boiling resistant food packaging bag according to claim 2, characterized in that: The inner bag of the packaging bag comprises an aluminum oxide layer (13), wherein the aluminum oxide layer (13) forms a hard and dense aluminum oxide film, and a BOPP film layer (14) is provided on a side of the aluminum oxide layer (13) away from the inside of the packaging bag body (1).

4. The high temperature boiling resistant food packaging bag according to claim 3, characterized in that: A CPP film layer (15) is provided on the side of the BOPP film layer (14) away from the aluminum oxide layer (13), and a packaging bag outer bag is fixedly mounted on the side of the CPP film layer (15) away from the BOPP film layer (14).

5. The high temperature boiling resistant food packaging bag according to claim 4, characterized in that: The outer bag of the packaging bag comprises a metal foil layer (16), and a first ultra-low density polyethylene layer (17) and a second ultra-low density polyethylene layer (18) are provided at one end of the metal foil layer (16) away from the CPP film layer (15).

6. The high temperature boiling resistant food packaging bag according to claim 5, characterized in that: The sealing ring (22) and the packaging bag body (1) are connected to each other and extend into the interior of the packaging bag body (1); an inner rotating thread (26) is provided on the outer side wall of the sealing ring (22); an outer rotating thread (25) is provided on the inner side wall of the sealing cover (21); the outer rotating thread (25) and the inner rotating thread (26) are mounted in cooperation with each other to seal the packaging bag body (1).

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