Microwave exhaust self-standing bag

Abstract

The utility model discloses a microwave exhaust standing pouch which comprises a pouch body, a bottom pouch is positioned at the bottom of the pouch body, a sealing strip is integrally formed on the bottom pouch, an exhaust strip is arranged on the sealing strip, an anti-scalding film is integrally formed on the edge side of the bottom of the bottom pouch, tearing grooves are formed in the two sides of the front end of the pouch body, and the tearing grooves are communicated with the sealing strip. The bag body comprises a BOPP base material printing layer and a polypropylene heat sealing layer, the BOPP base material printing layer is located on the surface of the outer layer, the polypropylene heat sealing layer is located on the surface of the inner layer, and an outer composite heat preservation film is integrally formed on the portion, located on the surface of the BOPP base material printing layer, of the bag body. According to the microwave exhaust self-standing bag, the packaging bag and content products are heated through microwaves to reach a certain pressure, automatic exhaust of the special exhaust strip is achieved, it is effectively guaranteed that the bag cannot burst after being heated, the exhaust strip is located at the bottom end of the self-standing bag, and after the heated products are taken out through a microwave oven, the hands are prevented from being scalded.

Description

Technical Field

[0001] This utility model relates to the field of stand-up pouches, and in particular to a microwave-vented stand-up pouch. Background Technology

[0002] Stand-up pouches are a type of sealed film bag. They are mainly used in products such as fruit juices, sports drinks, bottled drinking water, squeezable jellies, and condiments. In addition to the food industry, their use is also increasing in products such as detergents, daily cosmetics, and pharmaceuticals. With the continuous development of technology, people have higher and higher requirements for the manufacturing process of stand-up pouches.

[0003] Existing stand-up pouches have certain drawbacks in use. First, they are generally fully sealed, requiring the pouch to be opened and the food removed separately before microwave heating. Placing the pouch directly in the microwave poses a risk of explosion, making them inconvenient to use. Furthermore, the structure of existing stand-up pouches is relatively simple, making them prone to damage, which negatively impacts their practical use. Therefore, we propose a microwave-vented stand-up pouch. Utility Model Content

[0004] Technical problem solved: In view of the shortcomings of the prior art, this utility model provides a microwave-vented self-standing bag. The packaging bag and its contents are microwave-heated to a certain pressure, and a special venting strip automatically vents the air, effectively ensuring that the bag will not burst after heating. The venting strip is located at the bottom of the self-standing bag, preventing burns to the hands after removing the heated product from the microwave oven. This effectively solves the problems in the background art.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a microwave-vented self-standing bag, comprising a bag body, a bottom bag positioned at the bottom of the bag body, a sealing strip integrally formed on the bottom bag, an exhaust strip formed on the sealing strip, an anti-scalding film integrally formed on the bottom side of the bottom bag, tear grooves formed on both sides of the front end of the bag body, the bag body comprising a BOPP substrate printing layer and a polypropylene hot air layer, the BOPP substrate printing layer being located on the outer surface, and the polypropylene hot air layer being located on the inner surface.

[0006] Preferably, an outer composite insulation film is integrally formed on the surface of the BOPP substrate printing layer on the bag body, an inner composite insulation film is integrally formed on the surface of the polypropylene hot air layer on the bag body, an outer sealing film is integrally formed on the side of the outer composite insulation film, and an inner sealing film is integrally formed on the side of the inner composite insulation film.

[0007] Preferably, the outer composite insulation film includes a water-blocking layer, a heat-resistant layer, an insulation layer, and a heat-sealing layer, wherein the insulation layer is located on the surface of the heat-sealing layer, the heat-resistant layer is located on the surface of the insulation layer, and the water-blocking layer is located on the surface of the heat-resistant layer.

[0008] Preferably, the outer composite insulation film, the BOPP substrate printing layer, the polypropylene hot air layer, and the inner composite insulation film are integrally formed by hot pressing; the outer composite insulation film and the outer sealing film are integrally formed by injection molding; and the inner composite insulation film and the inner sealing film are integrally formed by injection molding.

[0009] Preferably, the water-blocking layer, heat-resistant layer, heat-insulating layer, and heat-sealing layer are integrally formed by hot pressing.

[0010] Preferably, the bag body is torn through a tear groove, and the sealing strip is vented through an exhaust strip.

[0011] Beneficial Effects: Compared with the prior art, this utility model provides a microwave-vented self-standing bag with the following beneficial effects: This microwave-vented self-standing bag, when heated in the microwave along with the contents to a certain pressure, automatically releases air through a dedicated venting strip, effectively preventing the bag from bursting after heating. The venting strip is located at the bottom of the self-standing bag, preventing burns to hands after removing the heated product from the microwave. It mainly includes a bag body containing a heat-sealing layer. Various patterns and information can be printed on the surface of the bag body. The outermost layer of the bag body structure is a BOPP substrate printing layer, and the inner heat-sealing layer is made of polypropylene material. The entire self-standing bag has a simple structure, is easy to operate, and performs better than traditional methods. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a microwave exhaust self-standing bag according to the present invention.

[0013] Figure 2 This is a schematic diagram of the disassembled structure of the bag body in the microwave exhaust self-standing bag of this utility model.

[0014] Figure 3 This is a schematic diagram of the composite heat-insulating film in a microwave-vented self-standing bag according to the present invention.

[0015] Figure 4 This is a schematic diagram of the decomposition of the composite heat-insulating film in a microwave exhaust self-standing bag according to this utility model.

[0016] In the diagram: 1. Bag body; 2. Tear groove; 3. Exhaust strip; 4. Bottom bag; 5. Sealing strip; 6. Anti-scalding film; 7. Outer composite insulation film; 8. BOPP substrate printing layer; 9. Polypropylene hot air layer; 10. Inner composite insulation film; 11. Outer sealing film; 12. Inner sealing film; 13. Water-resistant layer; 14. Heat-resistant layer; 15. Insulation layer; 16. Heat-sealing layer. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1-4 As shown, a microwave-safe stand-up pouch includes a bag body 1, a bottom bag 4 positioned at the bottom of the bag body 1, a sealing strip 5 integrally formed on the bottom bag 4, an exhaust strip 3 formed on the sealing strip 5, an anti-scalding film 6 integrally formed on the bottom side of the bottom bag 4, and tear grooves 2 formed on both sides of the front end of the bag body 1. The bag body 1 includes a BOPP substrate printing layer 8 and a polypropylene hot air layer 9. The BOPP substrate printing layer 8 is located on the outer surface, and the polypropylene hot air layer 9 is located on the inner surface. When the packaging bag and its contents are microwave-heated to a certain pressure, the dedicated exhaust strip automatically exhausts air, effectively ensuring that the bag will not burst after heating. The exhaust strip is located at the bottom of the stand-up pouch, preventing burns to the hands after removing the heated product from the microwave oven.

[0021] Furthermore, an outer composite insulation film 7 is integrally formed on the surface of the BOPP substrate printing layer 8 on the bag body 1, an inner composite insulation film 10 is integrally formed on the surface of the polypropylene hot air layer 9 on the bag body 1, an outer sealing film 11 is integrally formed on the side of the outer composite insulation film 7, and an inner sealing film 12 is integrally formed on the side of the inner composite insulation film 10.

[0022] Furthermore, the outer composite insulation film 7 includes a water-blocking layer 13, a heat-resistant layer 14, an insulation layer 15, and a heat-sealing layer 16. The insulation layer 15 is located on the surface of the heat-sealing layer 16, the heat-resistant layer 14 is located on the surface of the insulation layer 15, and the water-blocking layer 13 is located on the surface of the heat-resistant layer 14.

[0023] Furthermore, the outer composite insulation film 7, the BOPP substrate printing layer 8, the polypropylene hot air layer 9, and the inner composite insulation film 10 are integrally formed by hot pressing; the outer composite insulation film 7 and the outer sealing film 11 are integrally formed by injection molding; and the inner composite insulation film 10 and the inner sealing film 12 are integrally formed by injection molding.

[0024] Furthermore, the water-blocking layer 13, the heat-resistant layer 14, the heat-insulating layer 15, and the heat-sealing layer 16 are integrally formed by hot pressing.

[0025] Furthermore, the bag body 1 is torn through the tear groove 2, and the sealing strip 5 is vented through the exhaust strip 3.

[0026] Working principle: This utility model includes a bag body 1, a tear groove 2, an exhaust strip 3, a bottom bag 4, a sealing strip 5, an anti-scalding film 6, an outer composite insulation film 7, a BOPP substrate printing layer 8, a polypropylene hot air layer 9, an inner composite insulation film 10, an outer sealing film 11, an inner sealing film 12, a water-blocking layer 13, a heat-resistant layer 14, an insulation layer 15, and a heat-sealing layer 16. It mainly includes a bag body, which contains a heat-sealing layer. Various patterns and information can be printed on the surface of the bag body. The outermost layer of the bag body structure is a BOPP substrate printing layer, and the inner heat-sealing layer is made of polypropylene. When the packaging bag and its contents are microwave-heated to a certain pressure, the dedicated exhaust strip automatically releases air, effectively preventing the bag from bursting after heating. The exhaust strip is located at the bottom of the stand-up pouch, preventing burns to hands after removing the heated product from the microwave oven.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A microwave exhaust stand-up pouch comprising a pouch body (1), characterized in that: The bottom of the bag body (1) is provided with a bottom bag (4), the bottom bag (4) is integrally formed with a sealing strip (5), the sealing strip (5) is provided with an exhaust strip (3), the bottom of the bottom bag (4) is integrally formed with an anti-scald film (6), both sides of the front end of the bag body (1) are provided with a tear slot (2), the bag body (1) comprises a BOPP substrate printing layer (8) and a polypropylene hot air layer (9), the BOPP substrate printing layer (8) is located on the outer surface, and the polypropylene hot air layer (9) is located on the inner surface.

2. A microwaveable vented stand-up pouch according to claim 1, wherein: The bag body (1) is integrally formed with an outer composite heat preservation film (7) on the surface of the BOPP substrate printing layer (8), and is integrally formed with an inner composite heat preservation film (10) on the surface of the polypropylene hot air layer (9), the edge side of the outer composite heat preservation film (7) is integrally formed with an outer sealing film (11), and the edge side of the inner composite heat preservation film (10) is integrally formed with an inner sealing film (12).

3. A microwaveable vented stand-up pouch according to claim 2, wherein: The outer composite heat preservation film (7) comprises a water blocking layer (13), a heat resistant layer (14), a heat preservation layer (15) and a heat sealing layer (16), the heat preservation layer (15) is located on the surface of the heat sealing layer (16), the heat resistant layer (14) is located on the surface of the heat preservation layer (15), and the water blocking layer (13) is located on the surface of the heat resistant layer (14).

4. A microwaveable vented stand-up pouch according to claim 2, wherein: The outer composite heat preservation film (7), the BOPP substrate printing layer (8), the polypropylene hot air layer (9) and the inner composite heat preservation film (10) are integrally formed by hot pressing, the outer composite heat preservation film (7) and the outer sealing film (11) are integrally formed by injection molding, and the inner composite heat preservation film (10) and the inner sealing film (12) are integrally formed by injection molding.

5. A microwaveable vented stand-up pouch according to claim 3, wherein: The water blocking layer (13), the heat resistant layer (14), the heat preservation layer (15) and the heat sealing layer (16) are integrally formed by hot pressing.

6. A microwaveable vented stand-up pouch according to claim 1, wherein: The bag body (1) is torn by the tear slot (2), and the position of the sealing strip (5) is ventilated by the exhaust strip (3).

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