High-sealing-performance composite film for food packaging bag

Abstract

The utility model relates to the technical field of composite films, in particular to a high-sealing-performance composite film for a food packaging bag, which is convenient to protect, improves the working efficiency and enhances the practicability. Comprising a packaging bag body, the protection structure comprises two handles, the packaging bag body is covered with a waterproof layer, the waterproof layer is covered with an ultraviolet-proof layer, the ultraviolet-proof layer is covered with a wear-resistant layer, an anti-corrosion layer is arranged in the packaging bag body, a heat preservation layer is arranged in the anti-corrosion layer, and a heat sealing strip is arranged on the heat preservation layer. The two handles are both installed on the wear-resistant layer, after food is placed in the packaging bag body, air in the packaging bag body is evacuated, the packaging bag body is sealed through the heat sealing strips, the wear-resistant layer can improve the wear resistance of the packaging bag body and prolong the service life of the packaging bag body, and the ultraviolet-proof layer reduces irradiation of ultraviolet rays to the food in the packaging bag body. The waterproof layer can prevent moisture in the external environment from entering the packaging bag body.

Description

Technical Field

[0001] The utility model relates to the technical field of composite films, in particular to a composite film for a food packaging bag with high sealing performance. Background Art

[0002] In the existing food production process, food packaging is a relatively important link. Food needs to be packaged before it can be transported to stores for sale, and the quality of food packaging directly affects whether the food can be sold normally. Packaging film is a commonly used material for food packaging. Food packaging film is wrapped on the surface of food, mainly to isolate bacteria and foreign contaminants, but the current packaging film lacks sufficient protection, and the protection of food is not in place, which reduces work efficiency and leads to poor practicality. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to solve the above technical problems, the utility model provides a composite film for food packaging bags with high sealing properties, which is convenient for protection, improves work efficiency and enhances practicality.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a composite film for a highly sealable food packaging bag, comprising a packaging bag body, the protective structure comprising two handles, the packaging bag body being covered with a waterproof layer, the waterproof layer being covered with an anti-ultraviolet layer, the anti-ultraviolet layer being covered with a wear-resistant layer, the packaging bag body being provided with an anti-corrosion layer, the anti-corrosion layer being provided with an insulation layer, the insulation layer being provided with a heat sealing strip, and the two handles being installed on the wear-resistant layer.

[0007] By adopting the above technical scheme, after the food is placed in the packaging bag body, the air in the packaging bag body is evacuated, and the heat sealing strip is raised to seal the packaging bag body. The wear-resistant layer can improve the wear resistance of the packaging bag body and increase its service life. The anti-ultraviolet layer reduces the exposure of ultraviolet rays to the food in the packaging bag body. The waterproof layer can prevent moisture from the external environment from entering the packaging bag body. The anti-corrosion layer can prevent the food from spoiling, and the insulation layer can maintain the temperature of the food. This process realizes a process that is easy to protect, improves work efficiency, and thus enhances practicality.

[0008] Preferably, the waterproof layer is made of polyurethane.

[0009] By adopting the above technical solution, the polyurethane has good waterproof performance, thereby enhancing practicality.

[0010] Preferably, the anti-ultraviolet layer is made of polyamide.

[0011] By adopting the above technical solution, the polyamide material has a certain sun protection performance, thereby enhancing the practicality.

[0012] Preferably, the wear-resistant layer is made of polytetrafluoroethylene.

[0013] By adopting the above technical solution, polytetrafluoroethylene has higher wear resistance, which can improve the wear resistance of the packaging bag body, thereby extending the service life.

[0014] Preferably, the anti-corrosion layer is made of polypropylene.

[0015] By adopting the above technical solution, polyethylene has corrosion resistance and can resist the erosion of chemical substances such as acid, alkali, and salt, thereby enhancing its practicality.

[0016] Preferably, the insulation layer is made of polyethylene.

[0017] By adopting the above technical solution, polyethylene is a common plastic material with good thermal insulation effect, which can maintain the temperature of food, thereby enhancing practicality.

[0018] Preferably, a plurality of anti-slip protrusions are provided at the bottom end of the wear-resistant layer.

[0019] By adopting the above technical solution, the anti-skid protrusions can increase the friction between the packaging bag body and the placement position to avoid slipping.

[0020] Preferably, reinforcement strips are provided on both handles.

[0021] By adopting the above technical solution, the reinforcement strip can strengthen the connection between the handle and the wear-resistant layer, thereby enhancing practicality.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present application provides a composite film for food packaging bags with high sealing properties, which has the following beneficial effects:

[0024] After putting the food into the packaging bag body, the air in the packaging bag body is evacuated, and the heat sealing strip is raised to seal the packaging bag body. The wear-resistant layer can improve the wear resistance of the packaging bag body and increase its service life. The anti-ultraviolet layer reduces the exposure of ultraviolet rays to the food in the packaging bag body. The waterproof layer can prevent moisture from the external environment from entering the packaging bag body. The anti-corrosion layer can prevent food from spoiling, and the insulation layer can maintain the temperature of the food. This process realizes a process that is easy to protect, improves work efficiency, and thus enhances practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the axial side cross-sectional structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0028] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model.

[0029] Markings in the attached figure: 1. Packaging bag body; 2. Handle; 3. Waterproof layer; 4. Anti-ultraviolet layer; 5. Wear-resistant layer; 6. Anti-corrosion layer; 7. Insulation layer; 8. Heat sealing strip; 9. Anti-slip protrusion; 10. Reinforcement strip. DETAILED DESCRIPTION

[0030] Example

[0031] See also Figure 1-Figure 4 A composite film for a highly sealed food packaging bag comprises a packaging bag body 1, a protective structure comprising two handles 2, a waterproof layer 3 is provided on the outside of the packaging bag body 1, the waterproof layer 3 is made of polyurethane, and polyurethane has good waterproof performance, an anti-ultraviolet layer 4 is provided on the outside of the waterproof layer 3, the anti-ultraviolet layer 4 is made of polyamide, and the polyamide material has certain sun protection performance, an anti-ultraviolet layer 4 is provided on the outside of the anti-ultraviolet layer 4, and the wear-resistant layer 5 is made of polytetrafluoroethylene, and polytetrafluoroethylene has high wear resistance, an anti-corrosion layer 6 is provided inside the packaging bag body 1, the anti-corrosion layer 6 is made of polypropylene, and polyethylene is corrosion-resistant and can resist the erosion of chemical substances such as acid, alkali, and salt, and an insulation layer 7 is provided inside the anti-corrosion layer 6, and the insulation layer 7 is polyethylene Material: Polyethylene is a common plastic material with good thermal insulation effect, which can maintain the temperature of food. A heat sealing strip 8 is arranged on the thermal insulation layer 7, and the two handles 2 are installed on the wear-resistant layer 5. After the food is placed in the packaging bag body 1, the air inside the packaging bag body 1 is evacuated, and the heat sealing strip 8 is raised to seal the packaging bag body 1. The wear-resistant layer 5 can improve the wear resistance of the packaging bag body 1 and increase its service life. The anti-ultraviolet layer 4 reduces the exposure of ultraviolet rays to the food in the packaging bag body 1. The waterproof layer 3 can prevent moisture from the external environment from entering the packaging bag body 1. The anti-corrosion layer 6 can prevent food from spoiling. The thermal insulation layer 7 can maintain the temperature of food. This process realizes a process that is easy to protect, improves work efficiency, and thus enhances practicality.

[0032] See also Figure 1-Figure 4 A plurality of anti-skid protrusions 9 are provided at the bottom end of the wear-resistant layer 5, which can increase the friction between the packaging bag body 1 and the placement position to avoid slipping. Reinforcement strips 10 are provided on both handles 2, which can strengthen the connection between the handles 2 and the wear-resistant layer 5.

[0033] The utility model discloses a composite film for food packaging bags with high sealing performance. When the composite film is in operation, after food is put into the packaging bag body 1, the air inside the packaging bag body 1 is evacuated, and the heat sealing strip 8 is raised to seal the packaging bag body 1. The wear-resistant layer 5 can improve the wear resistance of the packaging bag body 1 and increase its service life. The anti-ultraviolet layer 4 reduces the irradiation of ultraviolet rays on the food in the packaging bag body 1. The waterproof layer 3 can prevent moisture from the external environment from entering the packaging bag body 1. The anti-corrosion layer 6 can prevent food from deteriorating. The heat-insulating layer 7 can maintain the temperature of the food. This process realizes a process that is easy to protect.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite film for a food packaging bag with high sealing performance, comprising a packaging bag body (1), characterized in that: Also includes: The protective structure comprises two handles (2), a packaging bag body (1) is covered with a waterproof layer (3), the waterproof layer (3) is covered with an anti-ultraviolet layer (4), the anti-ultraviolet layer (4) is covered with a wear-resistant layer (5), an anti-corrosion layer (6) is arranged inside the packaging bag body (1), a heat-insulating layer (7) is arranged inside the anti-corrosion layer (6), a heat-insulating strip (8) is arranged on the heat-insulating layer (7), and the two handles (2) are both mounted on the wear-resistant layer (5).

2. The composite film for food packaging bags with high airtightness as claimed in claim 1, characterized in that: The waterproof layer (3) is made of polyurethane.

3. The composite film for a food packaging bag with high airtightness as claimed in claim 2, characterized in that: The anti-ultraviolet layer (4) is made of polyamide.

4. The composite film for a food packaging bag with high airtightness as claimed in claim 3, characterized in that: The wear-resistant layer (5) is made of polytetrafluoroethylene.

5. The composite film for food packaging bags with high airtightness as claimed in claim 4, characterized in that: The anti-corrosion layer (6) is made of polypropylene.

6. The composite film for food packaging bags with high airtightness as claimed in claim 5, characterized in that: The thermal insulation layer (7) is made of polyethylene.

7. The composite film for food packaging bags with high airtightness as claimed in claim 6, characterized in that: The bottom end of the wear-resistant layer (5) is provided with a plurality of anti-slip protrusions (9).

8. The composite film for food packaging bags with high airtightness as claimed in claim 7, characterized in that: Both handles (2) are provided with reinforcement strips (10).

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