Degradable plastic packaging bag

Abstract

The utility model discloses a degradable plastic packaging bag which comprises a packaging bag body, the packaging bag body comprises a degradable base layer, and the outer side of the degradable base layer is fixedly connected with a printing layer. The inner side of the degradable base layer is fixedly connected with a waterproof layer, the inner side of the waterproof layer is fixedly connected with an antibacterial layer, and the inner side of the antibacterial layer is fixedly connected with a protective layer. The degradable plastic packaging bag provided by the utility model has good waterproof and antibacterial effects under the interaction of the degradable base layer, the printing layer, the waterproof layer, the antibacterial layer and the protective layer, and also has the advantage that the packaging bag can be quickly degraded by the outside after being discarded, so that a large amount of white pollution is not caused; the degradation speed of the polymer packaging bag is accelerated, and the environment-friendly effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a degradable plastic packaging bag. Background Art

[0002] Packaging bags have entered thousands of households, and more and more plastic waste is found in the garbage. Since these synthetic polymers are very stable, acid-resistant, alkali-resistant, and not susceptible to moth or mildew, they will not rot even if buried underground for hundreds of years. Therefore, discarded plastics have become a serious public nuisance. At present, most general packaging bags cannot be directly degraded, and the treatment process of non-degradable packaging bags will cause a large amount of resource consumption and pollution to the earth's environment. The natural decomposition of each plastic bag takes more than 200 years, which will pollute the surrounding land and water quality. Long-term accumulation will cause great pollution to the environment and fail to achieve effective utilization of resources.

[0003] Based on the above situation, the utility model proposes a degradable plastic packaging bag, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a degradable plastic packaging bag. The degradable plastic packaging bag provided by the utility model has good waterproof and antibacterial effects through the interaction of the degradable base layer, the printing layer, the waterproof layer, the antibacterial layer and the protective layer. At the same time, it also has the advantage that the packaging bag can be quickly degraded by the outside after being discarded, will not cause a large amount of white pollution, accelerates the degradation speed of the polymer packaging bag, and can play an environmental protection role.

[0005] The utility model is realized by the following technical solutions:

[0006] A degradable plastic packaging bag comprises a packaging bag main body, wherein the packaging bag main body comprises a degradable base layer, a printed layer is fixedly connected to the outer side of the degradable base layer; a waterproof layer is fixedly connected to the inner side of the degradable base layer, an antibacterial layer is fixedly connected to the inner side of the waterproof layer, and a protective layer is fixedly connected to the inner side of the antibacterial layer.

[0007] According to the above technical solution, as a further preferred technical solution of the above technical solution, a packaging bag sealing strip is provided on the top of the surface of the packaging bag body, and an identification plate is provided on the front of the packaging bag body and outside the printing layer.

[0008] According to the above technical solution, as a further preferred technical solution of the above technical solution, the degradable base layer includes a first degradable layer and a second degradable layer, the first degradable layer and the second degradable layer are both LLDPE layers, the interiors of the first degradable layer and the second degradable layer are filled with degradable particles, and the degradable particles are polylactic acid or starch plastic.

[0009] According to the above technical solution, as a further preferred technical solution of the above technical solution, the material of the antibacterial layer is bamboo charcoal fiber.

[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the material of the waterproof layer is PE waterproof and breathable film.

[0011] According to the above technical solution, as a further preferred technical solution of the above technical solution, the material of the protective layer is polyhydroxyalkanoate.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0013] The utility model provides a degradable plastic packaging bag, which has good waterproof and antibacterial effects due to the interaction of a degradable base layer, a printing layer, a waterproof layer, an antibacterial layer and a protective layer. It also has the advantage that the packaging bag can be quickly degraded externally after being discarded, will not cause a large amount of white pollution, accelerates the degradation speed of the polymer packaging bag, and can play an environmental protection role. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0017] A degradable plastic packaging bag comprises a packaging bag body 1, wherein the packaging bag body 1 comprises a degradable base layer 2, a printed layer 3 is fixedly connected to the outer side of the degradable base layer 2; a waterproof layer 4 is fixedly connected to the inner side of the waterproof layer 4, an antibacterial layer 5 is fixedly connected to the inner side of the antibacterial layer 5, and a protective layer 6 is fixedly connected to the inner side of the antibacterial layer 5.

[0018] The utility model has good waterproof and antibacterial effects through the interaction of the degradable base layer 2, the printing layer 3, the waterproof layer 4, the antibacterial layer 5 and the protective layer 6. At the same time, it also has the advantage that the packaging bag can be quickly degraded externally after being discarded, will not cause a large amount of white pollution, accelerates the degradation speed of the polymer packaging bag, and can play an environmental protection role.

[0019] Furthermore, in another embodiment, a packaging bag sealing strip 7 is provided on the top of the surface of the packaging bag body 1, and an identification plate 8 is provided on the front of the packaging bag body 1 and outside the printing layer 3. The packaging bag sealing strip 7 is provided to increase the sealing effect of the packaging bag, and the identification plate 8 is provided to facilitate recording of commodity information in the packaging bag.

[0020] Further, in another embodiment, the degradable base layer 2 includes a first degradable layer 21 and a second degradable layer 22, both of which are LLDPE layers, and the first degradable layer 21 and the second degradable layer 22 are filled with degradation particles 23, and the degradation particles 23 are polylactic acid or starch plastic. By providing the first degradable layer 21 and the second degradable layer 22, and the first degradable layer 21 and the second degradable layer 22 are filled with polylactic acid or starch plastic, after the packaging bag is used and discarded, it can be automatically degraded under biological action, effectively reducing environmental pollution.

[0021] Furthermore, in another embodiment, the antibacterial layer 5 is made of bamboo charcoal fiber. By providing the antibacterial layer 5 made of bamboo charcoal fiber, the antibacterial effect of the packaging bag is increased.

[0022] Furthermore, in another embodiment, the waterproof layer 4 is made of a PE waterproof and breathable film. By providing the waterproof layer 4 made of a PE waterproof and breathable film, the packaging bag has a waterproof and breathable effect.

[0023] Furthermore, in another embodiment, the material of the protective layer 6 is polyhydroxyalkanoate. By providing the protective layer 6 made of polyhydroxyalkanoate, the rapid degradation rate of the packaging bag body 1 is increased, the environmental pollution generated by the packaging bag body 1 is effectively reduced, and the practicality of the packaging bag body 1 is increased.

[0024] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the degradable plastic packaging bag of the utility model, and can produce the positive effects recorded in the utility model.

[0025] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which 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 orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0026] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or 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.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A degradable plastic packaging bag, characterized in that: The packaging bag comprises a packaging bag body (1), wherein the packaging bag body (1) comprises a degradable base layer (2), the outer side of the degradable base layer (2) is fixedly connected to a printing layer (3); the inner side of the degradable base layer (2) is fixedly connected to a waterproof layer (4), the inner side of the waterproof layer (4) is fixedly connected to an antibacterial layer (5), and the inner side of the antibacterial layer (5) is fixedly connected to a protective layer (6).

2. A degradable plastic packaging bag according to claim 1, characterized in that: A packaging bag sealing strip (7) is provided on the top of the surface of the packaging bag body (1), and an identification plate (8) is provided on the front of the packaging bag body (1) and outside the printing layer (3).

3. A degradable plastic packaging bag according to claim 1, characterized in that: The degradable base layer (2) comprises a first degradable layer (21) and a second degradable layer (22), wherein the first degradable layer (21) and the second degradable layer (22) are both LLDPE layers, and the interiors of the first degradable layer (21) and the second degradable layer (22) are both filled with degradable particles (23), and the degradable particles (23) are polylactic acid or starch plastic.

4. A degradable plastic packaging bag according to claim 1, characterized in that: The antibacterial layer (5) is made of bamboo charcoal fiber.

5. The degradable plastic packaging bag according to claim 1, characterized in that: The material of the waterproof layer (4) is a PE waterproof and breathable membrane.

6. The degradable plastic packaging bag according to claim 1, characterized in that: The material of the protective layer (6) is polyhydroxyalkanoate.

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