A self-adhesive food packaging composite film pouch

Abstract

The utility model discloses a kind of self-adhesion food packaging composite film bags, it is related to composite film bag technical field, including polyester film bag base material and self-adhesion component, the polyester film bag base material is integrated structure, and polyester film bag base material upside is connected with folding bag mouth, the folding bag mouth lower surface and polyester film bag base material upper surface are closely connected, the self-adhesion component is set to folding bag mouth surface, and self-adhesion component includes flexible connecting band, nylon adhesive tape, nylon flannelette, magnetic attraction positioning strip, sealing clamping groove and sealing clamping strip.The self-adhesion food packaging composite film bag, by self-adhesion component, so that the device can realize the quick sealing of film bag by self-adhesion mechanism, support one-handed operation and repeatedly open and close, and sealing property is strong, significantly improve sealing convenience and sealing reliability, by protection component, so that the device is through multilayer composite structure, realize comprehensive protection, effectively prolong shelf life, more stronger adaptability, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of composite film bag technology, specifically a self-adhesive food packaging composite film bag. Background Technology

[0002] Food packaging composite film bags are flexible packaging materials made of two or more materials through coating, hot pressing, or bonding processes. They have functions such as oxygen barrier, moisture protection, and light shielding, and their core function is to protect food quality. Through multi-layer structural design, they extend shelf life and adapt to special needs such as high-temperature sterilization or low-temperature preservation, and are mainly used in the food industry. However, current food packaging composite film bags still have the following shortcomings: For example, patent document CN222005945U discloses a food packaging composite film bag. This food packaging composite film bag, through its packaging bag body and the paper substrate inside the bag body, provides additional flexibility. The protective layer composed of polyethylene, the heat insulation layer composed of polypropylene, and the wear-resistant layer composed of polyester all have good chemical resistance and barrier properties, ensuring that the quality of the internal liquid will not change due to external influences. However, its sealing reliability is low, it cannot be reused, and its operation is cumbersome, resulting in poor convenience and user experience. Utility Model Content

[0003] The purpose of this invention is to provide a self-adhesive food packaging composite film bag to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-adhesive food packaging composite film bag, comprising a polyester film bag substrate and a self-adhesive component. The polyester film bag substrate is an integrated structure, and a folded bag opening is connected to the upper side of the polyester film bag substrate. The lower surface of the folded bag opening is tightly connected to the upper surface of the polyester film bag substrate. The self-adhesive component is disposed on the surface of the folded bag opening and includes a flexible connecting strip, nylon adhesive tape, nylon fleece tape, magnetic positioning strip, sealing slot, and sealing strip. The flexible connecting strip is disposed on the upper surface of the rear surface of the folded bag opening, and the lower side of the flexible connecting strip is tightly connected to the upper surface of the rear surface of the folded bag opening. A nylon adhesive tape is disposed on the surface of the flexible connecting strip, and the nylon adhesive tape and the flexible connecting strip are an integrated structure tightly connected.

[0005] Furthermore, a nylon fleece is provided on the upper end of the front surface of the folded bag opening, and magnetic positioning strips are provided on the upper ends of both the front and rear sides of the inner surface of the folded bag opening.

[0006] Furthermore, a sealing groove is provided at the upper rear side of the inner surface of the folded bag opening, and a sealing strip is engaged and connected inside the sealing groove. The front surface of the sealing strip is connected to the upper front side of the inner surface of the folded bag opening.

[0007] Furthermore, the outer surface of the polyester film bag substrate is provided with a polyurethane-based coating, and the inner surface of the polyester film bag substrate is provided with protective components for enhancing performance.

[0008] Furthermore, the protective component includes a reinforced protective layer, a light-shielding protective layer, an oxygen barrier layer, and a water vapor barrier layer, with the reinforced protective layer disposed on the inner surface of the polyester film bag substrate.

[0009] Furthermore, the inner surface of the reinforced protective layer is provided with a light-shielding protective layer, and the inner surface of the light-shielding protective layer is connected to an oxygen barrier layer, and the inner surface of the oxygen barrier layer is provided with a water vapor barrier layer.

[0010] Furthermore, the protective component also includes a low-temperature resistant layer, a high-temperature resistant layer, an odor-blocking layer, and an antibacterial layer, and the inner surface of the water vapor blocking layer is provided with a low-temperature resistant layer.

[0011] Furthermore, a high-temperature resistant layer is provided on the inner surface of the low-temperature resistant layer, and an odor-blocking layer is connected to the inner surface of the high-temperature resistant layer. An antibacterial layer is provided on the inner surface of the odor-blocking layer.

[0012] This utility model provides a self-adhesive food packaging composite film bag, which has the following beneficial effects: 1. This utility model incorporates a self-adhesive component, which includes a flexible connecting strip, nylon adhesive tape, nylon fleece tape, magnetic positioning strip, sealing slot, and sealing strip. In use, the magnetic positioning strip precisely aligns with the bag opening via magnetic attraction, preventing misalignment and sealing failure. Pressing and folding the bag opening inserts the sealing strip into the sealing slot, achieving a seal by engaging the sealing strip with the inner side of the slot. Pulling the flexible connecting strip forward covers the outside of the folded bag opening, and the nylon adhesive tape adheres to the nylon fleece tape, achieving a self-adhesive seal. This device enables rapid sealing of the bag through its self-adhesive mechanism, supports one-handed operation and repeated opening and closing, and provides strong sealing performance, significantly improving sealing convenience and reliability.

[0013] 2. This utility model incorporates a protective component, including a reinforced protective layer, a light-shielding protective layer, an oxygen barrier layer, and a water vapor barrier layer. The component also includes a low-temperature resistant layer, a high-temperature resistant layer, an odor barrier layer, and an antibacterial layer. In use, the reinforced protective layer is made of polyester material, which enhances puncture and tear resistance, making it less susceptible to damage. Carbon black is added to the light-shielding protective layer to block ultraviolet rays, effectively delaying the spoilage of photosensitive foods. The oxygen barrier layer is primarily a PVDC coated film, which delays oxidative spoilage of food. The water vapor barrier layer is primarily a plated... The aluminum film reduces moisture permeability, achieving effective moisture protection. The low-temperature resistant layer uses modified polyethylene, which can maintain flexibility below -18℃ to prevent freezing and cracking. The high-temperature resistant layer uses biaxially oriented nylon material, which can withstand high-temperature cooking above 121℃. The odor-barrier layer uses polyvinylidene chloride material, which can block volatile odor molecules and prevent odor penetration. The antibacterial layer contains silver ions, which can inhibit the growth of microorganisms and extend the shelf life of fresh food. Thus, the device achieves comprehensive protection through a multi-layered composite structure, effectively extending shelf life, making it more adaptable, safe and reliable. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a self-adhesive food packaging composite film bag according to the present invention; Figure 2 This is a three-dimensional structural diagram of the self-adhesive component of a self-adhesive food packaging composite film bag according to the present invention. Figure 3 This is a three-dimensional structural diagram of the protective component of a self-adhesive food packaging composite film bag according to this utility model.

[0015] In the diagram: 1. Polyester film bag substrate; 2. Folded bag opening; 3. Self-adhesive component; 301. Flexible connecting tape; 302. Nylon adhesive tape; 303. Nylon fleece tape; 304. Magnetic positioning strip; 305. Sealing slot; 306. Sealing strip; 4. Polyurethane base coating; 5. Protective component; 501. Reinforced protective layer; 502. Light-shielding protective layer; 503. Oxygen barrier layer; 504. Water vapor barrier layer; 505. Low temperature resistant layer; 506. High temperature resistant layer; 507. Odor barrier layer; 508. Antibacterial layer. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figures 1 to 3As shown, a self-adhesive food packaging composite film bag includes a polyester film bag substrate 1 and a self-adhesive component 3. The polyester film bag substrate 1 is an integral structure, and a folded bag opening 2 is connected to the upper side of the polyester film bag substrate 1. The lower surface of the folded bag opening 2 is tightly connected to the upper surface of the polyester film bag substrate 1. The self-adhesive component 3 is disposed on the surface of the folded bag opening 2, and the self-adhesive component 3 includes a flexible connecting strip 301, a nylon adhesive tape 302, a nylon fleece tape 303, a magnetic positioning strip 304, a sealing slot 305, and a sealing strip 306. The flexible connecting strip 301 is disposed on the upper end of the rear surface of the folded bag opening 2, and the flexible connecting strip 301... The lower side of 01 is tightly connected to the upper part of the rear surface of the folded bag opening 2. The surface of the flexible connecting strip 301 is provided with nylon adhesive tape 302, and the nylon adhesive tape 302 and the flexible connecting strip 301 are an integrated structure that is tightly connected. The upper part of the front surface of the folded bag opening 2 is provided with nylon fleece tape 303, and the upper parts of the front and rear sides of the inner surface of the folded bag opening 2 are provided with magnetic positioning strips 304. The upper part of the rear side of the inner surface of the folded bag opening 2 is provided with a sealing slot 305, and a sealing strip 306 is engaged and connected inside the sealing slot 305. The front surface of the sealing strip 306 is connected to the upper part of the front side of the inner surface of the folded bag opening 2.

[0018] The specific operation is as follows: When in use, the magnetic positioning strip 304 is precisely aligned with the bag opening through magnetic adsorption to avoid sealing failure caused by misalignment. Press and fold the bag opening 2 to insert the sealing snap strip 306 into the inside of the sealing snap groove 305. The sealing snap strip 306 and the inside of the sealing snap groove 305 are connected to achieve sealing of the film bag. Pull the flexible connecting strip 301 forward so that the flexible connecting strip 301 covers the outside of the folded bag opening 2. The bag opening is sealed and self-adhesive through the adhesion of the nylon adhesive tape 302 and the nylon fleece tape 303.

[0019] Please refer to Figure 3 The outer surface of the polyester film bag substrate 1 is provided with a polyurethane-based coating 4, and the inner surface of the polyester film bag substrate 1 is provided with a protective component 5 for enhancing performance. The protective component 5 includes a reinforcing protective layer 501, a light-shielding protective layer 502, an oxygen barrier layer 503, and a water vapor barrier layer 504. The reinforcing protective layer 501 is disposed on the inner surface of the polyester film bag substrate 1, and the light-shielding protective layer 502 is disposed on the inner surface of the reinforcing protective layer 501. The inner surface of the light-shielding protective layer 502 is connected to an oxygen barrier layer. The oxygen barrier layer 503 has a water vapor barrier layer 504 on its inner surface. The protective component 5 also includes a low temperature resistant layer 505, a high temperature resistant layer 506, an odor barrier layer 507, and an antibacterial layer 508. The water vapor barrier layer 504 has a low temperature resistant layer 505 on its inner surface, the low temperature resistant layer 505 has a high temperature resistant layer 506 on its inner surface, the high temperature resistant layer 506 has an odor barrier layer 507 connected to its inner surface, and the odor barrier layer 507 has an antibacterial layer 508 on its inner surface. The specific operation is as follows: When in use, the reinforced protective layer 501 is made of polyester material, which improves puncture resistance and tear resistance, making it less prone to damage. Carbon black is added to the light-shielding protective layer 502 to block ultraviolet rays and effectively delay the deterioration of photosensitive foods. The oxygen barrier layer 503 is mainly composed of PVDC coated film, which delays the oxidative deterioration of food. The water vapor barrier layer 504 is mainly composed of aluminum-plated film, which reduces moisture permeability and achieves effective moisture protection. The low-temperature resistant layer 505 is made of modified polyethylene, which can maintain flexibility below -18℃ and prevent freezing brittleness. The high-temperature resistant layer 506 is made of biaxially oriented nylon material, which can withstand high-temperature cooking above 121℃. The odor barrier layer 507 is made of polyvinylidene chloride material, which can block volatile odor molecules and prevent odor penetration. Silver ions are added to the antibacterial layer 508 to inhibit the growth of microorganisms and extend the shelf life of fresh foods.

[0020] In summary, as Figures 1 to 3 As shown, in use, the self-adhesive food packaging composite film bag first uses the magnetic positioning strip 304 to precisely align the bag opening with magnetic attraction, avoiding misalignment that could lead to sealing failure. Then, the bag opening 2 is pressed and folded, and the sealing snap strip 306 is inserted into the sealing snap groove 305. The snap strip 306 and the inner side of the sealing snap groove 305 are engaged to seal the film bag. The flexible connecting strip 301 is pulled forward to cover the outside of the folded bag opening 2, and the nylon adhesive tape 302 and nylon fleece tape 303 are bonded together to achieve a self-adhesive seal at the bag opening. During the use of this device, the reinforcing protective layer 501 is made of polyester material, which improves puncture resistance and tear resistance, making it less susceptible to damage. The light-blocking protective layer 502 contains carbon black, which blocks ultraviolet rays and effectively delays the spoilage of photosensitive foods. The oxygen barrier layer 503 is mainly composed of a PVDC coated film, which delays the oxidative spoilage of food. The water vapor barrier layer 504 is mainly composed of an aluminized film, which reduces moisture permeability and achieves effective moisture protection. The low-temperature resistant layer 505 uses modified polyethylene, which can maintain flexibility below -18℃ and prevent freezing cracking. The high-temperature resistant layer 506 uses biaxially oriented nylon material, which can withstand high-temperature cooking above 121℃. The odor barrier layer 507 uses polyvinylidene chloride material, which can block volatile odor molecules and prevent odor penetration. The antibacterial layer 508 contains silver ions, which can inhibit the growth of microorganisms and extend the shelf life of fresh foods.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A self-adhesive food packaging composite film bag, comprising a polyester film bag substrate (1) and a self-adhesive component (3), characterized in that: The polyester film bag substrate (1) is an integrated structure, and a folded bag opening (2) is connected to the upper side of the polyester film bag substrate (1). The lower surface of the folded bag opening (2) is tightly connected to the upper surface of the polyester film bag substrate (1). The self-adhesive component (3) is disposed on the surface of the folded bag opening (2). The self-adhesive component (3) includes a flexible connecting strip (301), a nylon adhesive tape (302), a nylon fleece tape (303), a magnetic positioning strip (304), a sealing snap groove (305), and a sealing snap strip (306). The flexible connecting strip (301) is disposed on the upper end of the rear surface of the folded bag opening (2), and the lower side of the flexible connecting strip (301) is tightly connected to the upper end of the rear surface of the folded bag opening (2). The surface of the flexible connecting strip (301) is provided with a nylon adhesive tape (302), and the nylon adhesive tape (302) and the flexible connecting strip (301) are an integrated structure that is tightly connected.

2. The self-adhesive food packaging composite film bag according to claim 1, characterized in that, The upper end of the front surface of the folded bag opening (2) is provided with a nylon fleece strip (303), and the upper ends of the front and rear sides of the inner surface of the folded bag opening (2) are provided with magnetic positioning strips (304).

3. The self-adhesive food packaging composite film bag according to claim 1, characterized in that, A sealing groove (305) is provided on the upper rear side of the inner surface of the folded bag opening (2), and a sealing strip (306) is engaged and connected inside the sealing groove (305). The front surface of the sealing strip (306) is connected to the upper front side of the inner surface of the folded bag opening (2).

4. The self-adhesive food packaging composite film bag according to claim 1, characterized in that, The outer surface of the polyester film bag substrate (1) is provided with a polyurethane-based coating (4), and the inner surface of the polyester film bag substrate (1) is provided with a protective component (5) for enhancing performance.

5. The self-adhesive food packaging composite film bag according to claim 4, characterized in that, The protective component (5) includes a reinforced protective layer (501), a light-shielding protective layer (502), an oxygen barrier layer (503), and a water vapor barrier layer (504), and the reinforced protective layer (501) is disposed on the inner surface of the polyester film bag substrate (1).

6. The self-adhesive food packaging composite film bag according to claim 5, characterized in that, The inner surface of the reinforced protective layer (501) is provided with a light-shielding protective layer (502), and the inner surface of the light-shielding protective layer (502) is connected with an oxygen barrier layer (503), and the inner surface of the oxygen barrier layer (503) is provided with a water vapor barrier layer (504).

7. The self-adhesive food packaging composite film bag according to claim 5, characterized in that, The protective component (5) further includes a low-temperature resistant layer (505), a high-temperature resistant layer (506), an odor barrier layer (507), and an antibacterial layer (508), and the inner surface of the water vapor barrier layer (504) is provided with a low-temperature resistant layer (505).

8. The self-adhesive food packaging composite film bag according to claim 7, characterized in that, The inner surface of the low-temperature resistant layer (505) is provided with a high-temperature resistant layer (506), and the inner surface of the high-temperature resistant layer (506) is connected with an odor-blocking layer (507), and the inner surface of the odor-blocking layer (507) is provided with an antibacterial layer (508).

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