Novel breathable and antibacterial multilayer food fresh-keeping package

Abstract

The utility model discloses a novel breathable and antibacterial multilayer food fresh-keeping package which comprises a packaging bag body. A protective film layer is mounted at one end of the packaging bag main body, a plurality of antibacterial particles are arranged in the protective film layer, a thickened film layer is mounted at one end of the protective film layer, a heat sealing layer is adhered to the thickened film layer, and a non-woven fabric layer is adhered to one end of the heat sealing layer; the protective film layer, the non-woven fabric layer and the like are arranged, the protective film layer and the thickened film layer are fused through instant heating and cooling between the protective film layer and the thickened film layer, a polyethylene-polypropylene composite material is formed, meanwhile, a preset number of antibacterial particles are added into the protective film layer, and the antibacterial effect is achieved; the composite material mixed spraying film formed by mixing the protective film layer and the thickening film layer and the non-woven fabric layer are heat-sealed together to form a spraying film of the non-woven fabric layer, and the packaging bag main body is manufactured, so that the packaging bag main body is heat-sealed firmly without air leakage, has an air conditioning effect and is helpful to be better used for food preservation.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a novel multi-layer food preservation packaging that is breathable and antibacterial. Background Technology

[0002] The production of food packaging bags involves multiple steps. First, raw materials are processed into thin films using extrusion or blown film technology. Then, printing, cutting, welding, and other processes are carried out according to requirements. Printing can be done by printing patterns and text according to brand design to make the packaging more attractive. Heat sealing technology is used to seal the film to form a sealed bag, ensuring that the food is not affected by the external environment. Food packaging bags are widely used and are suitable for various foods, such as snacks, frozen foods, beverages, and dried goods. They not only protect food and prevent contamination, but also improve the convenience, storability, and transportability of food.

[0003] Existing heat-sealing methods for non-woven fabrics use ultrasonic waves to generate heat and seal the non-woven material. However, ultrasonic heat sealing can lead to incomplete sealing, causing the bag to leak air and thus failing to preserve food. This reduces the applicability of non-woven packaging bags. Therefore, a new type of breathable and antibacterial multi-layer food preservation packaging is needed to meet people's needs. Utility Model Content

[0004] The purpose of this invention is to provide a novel, breathable, and antibacterial multilayer food preservation packaging to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel breathable and antibacterial multilayer food preservation packaging, comprising a packaging bag body; a protective film layer is installed at one end of the packaging bag body, the protective film layer contains multiple antibacterial particles, a thickened film layer is installed at one end of the protective film layer, a heat-sealing layer is bonded to the thickened film layer, and a non-woven fabric layer is bonded to one end of the heat-sealing layer.

[0006] Preferably, the protective film layer has multiple microscopic pores, which are evenly distributed on the protective film layer.

[0007] Preferably, one end of the nonwoven fabric layer is provided with a sealing soft edge, one end of the sealing soft edge is provided with a sealing groove, and a sealing strip is provided on the side of the nonwoven fabric layer, wherein the sealing groove is adapted to the sealing strip.

[0008] Preferably, the protective film layer is fixed to the main body of the packaging bag by lamination, and the material of the protective film layer is polyethylene.

[0009] Preferably, the thickened film layer is fixed to the side of the protective film layer by instantaneous heating and cooling, and the thickened film layer is made of polypropylene.

[0010] Preferably, the antibacterial particles are uniformly distributed within the protective film layer, and the antibacterial particles are adapted to the nonwoven fabric layer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model sets up a protective film layer and a non-woven fabric layer, and fuses the protective film layer and the thickened film layer by instantaneous heating and cooling between them to form a polyethylene polypropylene composite material. At the same time, a preset number of antibacterial particles are added to the protective film layer to play an antibacterial role. The composite material mixed with the protective film layer and the thickened film layer is heat-sealed together with the non-woven fabric layer to form a non-woven fabric layer membrane. This membrane is used to make the main body of the packaging bag, so that the main body of the packaging bag is heat-sealed firmly and does not leak air, and has a modified atmosphere function, which helps to better preserve food.

[0013] (2) By setting up a sealing soft edge and sealing groove, this utility model can close the opening of the non-woven fabric layer by attaching the sealing groove on the sealing soft edge to the sealing strip at the other end of the non-woven fabric layer, so that the operator can better pack the required food. Through the sealed space inside the main body of the packaging bag, the effect of food preservation is increased and the applicability of the main body of the packaging bag is improved. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a novel breathable and antibacterial multi-layer food preservation packaging proposed in this utility model.

[0015] Figure 2 This is a structural diagram of the thickened film layer and heat-sealing layer of a novel breathable and antibacterial multilayer food preservation packaging proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the antibacterial particles and non-woven fabric layer of a novel breathable and antibacterial multilayer food preservation packaging proposed in this utility model.

[0017] Figure 4 for Figure 1 Enlarged view of point A.

[0018] In the diagram: 1. Main body of the packaging bag; 2. Protective film layer; 3. Antibacterial particles; 4. Thickened film layer; 5. Heat-sealing layer; 6. Non-woven fabric layer; 7. Microscopic vents; 8. Sealing soft edge; 9. Sealing groove; 10. Sealing strip. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] 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.

[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figure 1-4This utility model provides a technical solution: a novel breathable and antibacterial multi-layer food preservation packaging, comprising a packaging bag body 1; a protective film layer 2 is installed at one end of the packaging bag body 1, the protective film layer 2 contains multiple antibacterial particles 3, a thickened film layer 4 is installed at one end of the protective film layer 2, a heat-sealing layer 5 is bonded to the thickened film layer 4, a non-woven fabric layer 6 is bonded to one end of the heat-sealing layer 5, multiple microscopic air pores 7 are opened in the protective film layer 2, the microscopic air pores 7 are evenly distributed on the protective film layer 2, the protective film layer 2 is fixed to the packaging bag body 1 by heat sealing, the material of the protective film layer 2 is polyethylene, the thickened film layer 4 is fixed to the side of the protective film layer 2 by instantaneous heating and cooling, the material of the thickened film layer 4 is polypropylene, the antibacterial particles 3 are evenly distributed in the protective film layer 2, the antibacterial particles 3 are compatible with the non-woven fabric layer 6, and when the protective film layer 2 and the thickened film layer 4 are heat-sealed simultaneously, an instantaneous heating and cooling method is used. The protective film layer 2 and the thickened film layer 4 are firmly heat-sealed together to form a composite material. Antibacterial particles 3 are added to the protective film layer 2 to form an antibacterial particle and polyethylene melt-blended film. The blended film is then heat-sealed onto the non-woven fabric layer 6 through the thickened film layer 4 to form a non-woven fabric film for production. Multiple microscopic air pores 7 are opened on the protective film layer 2. By adjusting the overall quantity of antibacterial particles 3, the overall antibacterial performance of the packaging bag body 1 can be adjusted. During the production of the packaging bag body 1, the air permeability of the packaging bag body 1 can be adjusted. The pore size of the microscopic air pores 7 can be adjusted according to actual needs to adapt to the preservation and storage of most foods. After the composite material and the non-woven fabric layer 6 are heat-sealed, a relatively sealed environment is formed, giving the packaging bag body 1 the function of a controlled atmosphere chamber. This avoids air leakage caused by ultrasonic heat sealing, increases the food preservation effect, and improves the applicability of the packaging bag body 1.

[0023] Example 2: Figure 2 and 4 As shown, a sealing soft edge 8 is installed at one end of the non-woven fabric layer 6, and a sealing groove 9 is opened at one end of the sealing soft edge 8. A sealing strip 10 is installed on the side of the non-woven fabric layer 6. The sealing groove 9 is adapted to the sealing strip 10. When the operator uses the packaging bag, the packaging bag can be sealed by the sealing groove 9 at one end of the packaging bag and the sealing strip 10, so that the inside of the packaging bag maintains a closed space, which increases the effect of food preservation and improves the applicability of the packaging bag. The remaining features are the same as in Example 1.

[0024] The working principle is as follows: When producing the main body 1 of the packaging bag, the protective film layer 2 and the thickened film layer 4 need to be fused together first. Since the protective film layer 2 and the thickened film layer 4 have different melting points, they are heat-sealed simultaneously using an instantaneous heating and cooling method to firmly heat-seal them together, forming a composite material. Compared to existing single polyethylene packaging bags, this composite material has higher strength and durability. Antibacterial particles 3 are added to the protective film layer 2 to form a melt-blended film of antibacterial particles 3 and polyethylene. This blended film is then heat-sealed onto the non-woven fabric layer 6 through the thickened film layer 4 to form a non-woven fabric film for production. Multiple microscopic air pores 7 are opened on the protective film layer 2. These pores are adjusted... The overall quantity of antibacterial particles 3 adjusts the overall antibacterial performance of the main body 1 of the packaging bag. During the production of the main body 1 of the packaging bag, the air permeability of the main body 1 of the packaging bag can be adjusted. The pore size of the micro-ventilation holes 7 can be adjusted according to actual needs to adapt to the preservation and storage of most foods. After the composite material and non-woven fabric layer 6 are heat-sealed, a relatively sealed environment is formed, so that the main body 1 of the packaging bag has the function of a controlled atmosphere chamber, avoiding air leakage caused by ultrasonic heat sealing, which affects the use of the packaging bag. When the operator uses the packaging bag, the sealing groove 9 at one end of the packaging bag can be attached to the sealing strip 10 to seal the packaging bag, so that the inside of the packaging bag maintains a sealed space, increasing the preservation effect of food and improving the applicability of the packaging bag.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel breathable and antibacterial multilayer food preservation packaging, comprising a main body of packaging bag (1); characterized in that: A protective film layer (2) is installed at one end of the main body (1) of the packaging bag. The protective film layer (2) contains multiple antibacterial particles (3). A thickened film layer (4) is installed at one end of the protective film layer (2). A heat-sealing layer (5) is bonded to the thickened film layer (4). A non-woven fabric layer (6) is bonded to one end of the heat-sealing layer (5).

2. The novel multi-layer food preservation packaging with breathability and antibacterial properties according to claim 1, characterized in that: The protective membrane layer (2) has multiple micro-permeable pores (7) which are evenly distributed on the protective membrane layer (2).

3. The novel multi-layer food preservation packaging with breathability and antibacterial properties according to claim 2, characterized in that: One end of the nonwoven fabric layer (6) is equipped with a sealing soft edge (8), and one end of the sealing soft edge (8) is provided with a sealing groove (9). A sealing strip (10) is installed on the side of the nonwoven fabric layer (6), and the sealing groove (9) is adapted to the sealing strip (10).

4. The novel breathable and antibacterial multi-layer food preservation packaging according to claim 1, characterized in that: The protective film layer (2) is fixed to the main body of the packaging bag (1) by lamination, and the material of the protective film layer (2) is polyethylene.

5. A novel multi-layer food preservation packaging with breathability and antibacterial properties according to claim 1, characterized in that: The thickened film layer (4) is fixed to the side of the protective film layer (2) by instantaneous heating and cooling. The thickened film layer (4) is made of polypropylene.

6. The novel breathable and antibacterial multilayer food preservation packaging according to claim 1, characterized in that: The antibacterial particles (3) are evenly distributed within the protective film layer (2), and the antibacterial particles (3) are compatible with the non-woven fabric layer (6).

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