Heat preservation type environment-friendly plastic bag

Abstract

The utility model discloses a heat preservation type environment-friendly plastic bag which comprises a plastic bag body, an opening is formed in the upper end of the plastic bag body, a sealing strip is fixedly arranged at the opening, handles are fixedly arranged on the left side and the right side of the plastic bag body respectively, a lining is arranged in the plastic bag body, and the lining comprises a waterproof layer fixedly arranged on the inner wall of the plastic bag body. The plastic bag comprises a plastic bag body, a waterproof layer is arranged in the plastic bag body, a heat preservation layer is fixedly arranged on the inner wall of the waterproof layer, a leakage-proof layer is fixedly arranged on the inner wall of the heat preservation layer, and a sponge layer is fixedly arranged on the bottom face in the plastic bag body. The temperature of the food can be better kept, and the preservation time of the food is prolonged; the waterproof layer is arranged, so that the problems that a traditional plastic bag is prone to moisture and water leakage are effectively solved, it is guaranteed that food in the plastic bag is not affected by external humidity, and more reliable protection is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bags, in particular to a heat-insulating environmentally friendly plastic bag. Background Art

[0002] Traditional plastic bags are mainly made of ordinary plastic, which has poor thermal insulation performance. There are the following defects in terms of thermal insulation and waterproofing: Lack of thermal insulation layer: Traditional plastic bags do not have a special thermal insulation layer, which makes the food easily affected by the external temperature during the carrying process and cannot effectively maintain the temperature of the food. Lack of waterproof layer: Traditional plastic bags do not have a waterproof layer in their structure, which makes them easily affected by moisture and leaking during the carrying process, causing adverse effects on the food in the bag. Utility Model Content

[0003] The utility model provides a heat-insulating environmentally friendly plastic bag to solve the above-mentioned problems.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an insulating and environmentally friendly plastic bag, comprising a plastic bag body, the upper end of the plastic bag body is open and a sealing strip is fixedly provided at the opening, handles are fixedly provided on the left and right sides of the plastic bag body, an inner lining is provided inside the plastic bag body, the inner lining comprises a waterproof layer fixedly provided on the inner wall of the plastic bag body, an insulating layer is fixedly provided on the inner wall of the waterproof layer, a leak-proof layer is fixedly provided on the inner wall of the insulating layer, and a sponge layer is fixedly provided on the bottom surface of the inner part of the plastic bag body.

[0005] Furthermore, a Velcro hook surface is fixedly provided on the bottom surface of the sealing strip, and a Velcro fur surface is fixedly provided on the upper end of a side surface of the plastic bag body away from the sealing strip, and the sealing strip seals the opening of the plastic bag body through the Velcro.

[0006] Furthermore, V-shaped folds are provided on both the front and rear sides of the plastic bag body.

[0007] Furthermore, the plastic bag body is made of degradable PVA polyvinyl alcohol material.

[0008] Furthermore, the waterproof layer is made of an environmentally friendly plastic film.

[0009] Furthermore, the thermal insulation layer is made of expanded polyethylene (EPE) material.

[0010] Furthermore, the leakproof layer is made of food-grade polyethylene PE or polypropylene PP material.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. Optimize thermal insulation performance: By setting a waterproof layer, a thermal insulation layer and a leak-proof layer inside the plastic bag, the thermal insulation performance of the plastic bag is effectively improved, which can better maintain the temperature of the food and extend the shelf life of the food.

[0013] 2. Improve waterproof performance: The setting of the waterproof layer effectively solves the problem of traditional plastic bags being prone to moisture and leakage, ensuring that the food inside is not affected by external humidity and providing more reliable protection.

[0014] 3. Environmentally friendly materials: Made of degradable PVA polyvinyl alcohol material, it reduces pollution to the environment and has high sustainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a main structural schematic diagram of a heat-insulating environmentally friendly plastic bag.

[0016] Figure 2 The utility model is a schematic diagram of the layered structure of the inner lining of a heat-insulating environmentally friendly plastic bag.

[0017] As shown in the figure: 1. Plastic bag body; 2. Sealing strip; 3. Handle; 4. Waterproof layer; 5. Insulation layer; 6. Leak-proof layer; 7. Sponge layer; 8. Velcro hook surface; 9. Velcro fleece surface; 10. V-shaped fold; 11. Lining. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Combined with Figure 1 To Attachment Figure 2A heat-insulating environmentally friendly plastic bag comprises a plastic bag body 1, the upper end of the plastic bag body 1 is open and a sealing strip 2 is fixedly provided at the opening, handles 3 are fixedly provided on the left and right sides of the plastic bag body 1, an inner lining 11 is provided inside the plastic bag body 1, the lining 11 comprises a waterproof layer 4 fixedly provided on the inner wall of the plastic bag body 1, the waterproof layer 4 is made of an environmentally friendly plastic film, an insulation layer 5 is fixedly provided on the inner wall of the waterproof layer 4, the insulation layer 5 is made of foamed polyethylene EPE material, a leak-proof layer 6 is fixedly provided on the inner wall of the insulation layer 5, the leak-proof layer 6 is made of food-grade polyethylene PE or polypropylene PP material, and a sponge layer 7 is fixedly provided on the bottom surface of the inner part of the plastic bag body 1.

[0022] The bottom surface of the sealing strip 2 is fixedly provided with a Velcro hook surface 8, and the upper end of the side surface of the plastic bag body 1 away from the sealing strip 2 is fixedly provided with a Velcro fur surface 9, and the sealing strip 2 seals the opening of the plastic bag body 1 through the Velcro.

[0023] The front and rear sides of the plastic bag body 1 are both provided with V-shaped folds 10 , and the plastic bag body 1 is made of degradable PVA polyvinyl alcohol material.

[0024] The various structures and functions of the heat-insulating environmentally friendly plastic bag of the utility model are as follows:

[0025] Plastic bag body 1: Made of degradable PVA polyvinyl alcohol material, it has good environmental performance.

[0026] Sealing strip 2: Fixed at the upper opening of the plastic bag, the plastic bag is sealed with Velcro to ensure that the food inside is not easily affected by external humidity.

[0027] Handle 3: fixed on the left and right sides of the plastic bag to facilitate users to carry.

[0028] Liner 11: located inside the plastic bag body 1, including the following layers:

[0029] The waterproof layer 4 is fixed on the inner wall of the plastic bag body 1 and is made of an environmentally friendly plastic film to play a waterproof role and ensure that it is not easy to get wet and leak.

[0030] The heat-insulating layer 5 is fixed on the inner wall of the waterproof layer 4 and is made of foamed polyethylene EPE material. It has good heat-insulating performance, can effectively maintain the temperature of food, and prolong the shelf life of food.

[0031] The anti-leakage layer 6 is fixed to the inner wall of the heat-insulating layer 5 and is made of food-grade polyethylene PE or polypropylene PP material to prevent food from leaking out and provide more reliable protection.

[0032] The sponge layer 7 is fixed to the bottom surface of the plastic bag body 1 and can play a buffering role to protect the food from being damaged by external collisions.

[0033] The Velcro hook surface 8 is fixed to the bottom surface of the sealing strip 2 and is adsorbed to the Velcro fur surface 9 at the upper end of the side surface of the plastic bag body 1 away from the sealing strip 2 to achieve sealing of the plastic bag.

[0034] V-shaped folds 10 are arranged on the front and rear sides of the plastic bag body 1 to facilitate users to open and use the plastic bag.

[0035] In summary, the thermal insulation and environmentally friendly plastic bag of this embodiment improves the thermal insulation and waterproof properties by optimizing the hierarchical structure and adopting environmentally friendly materials, and has high sustainability, can better protect food, extend its shelf life, and meets environmental protection requirements.

[0036] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A heat-insulating environmentally friendly plastic bag, comprising a plastic bag body (1), the upper end of the plastic bag body (1) is open and a sealing strip (2) is fixedly provided at the opening, and handles (3) are fixedly provided on both left and right sides of the plastic bag body (1), Features: The plastic bag body (1) is provided with an inner lining (11), the inner lining (11) comprising a waterproof layer (4) fixedly arranged on the inner wall of the plastic bag body (1), a heat-insulating layer (5) fixedly arranged on the inner wall of the waterproof layer (4), a leak-proof layer (6) fixedly arranged on the inner wall of the heat-insulating layer (5), and a sponge layer (7) fixedly arranged on the bottom surface of the inner part of the plastic bag body (1); The plastic bag body (1) is made of degradable PVA (polyvinyl alcohol) material; the waterproof layer (4) is made of environmentally friendly plastic film; the thermal insulation layer (5) is made of expanded polyethylene (EPE) material; and the leakproof layer (6) is made of food-grade polyethylene (PE) or polypropylene (PP) material.

2. A heat-insulating environmentally friendly plastic bag according to claim 1, Features: The bottom surface of the sealing strip (2) is fixedly provided with a Velcro hook surface (8), and the upper end of a side surface of the plastic bag body (1) away from the sealing strip (2) is fixedly provided with a Velcro fleece surface (9), and the sealing strip (2) seals the opening of the plastic bag body (1) through the Velcro.

3. A heat-insulating environmentally friendly plastic bag according to claim 1, Features: The front and rear sides of the plastic bag body (1) are both provided with V-shaped folds (10).

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