Degradable foamed plastic cushioning inner

Abstract

The utility model discloses a kind of degradable foamed plastic buffering packaging inner holder, it is related to packaging inner holder technical field, including inner lining body, the outside fixed connection of inner lining body has packaging shell, positioning hole is equidistantly opened between inner lining body and the inside of packaging shell, the inside of inner lining body and packaging shell is respectively by base material layer, pressure-resistant layer, buffer layer and waterproof protective layer jointly composed, base material layer is arranged in the bottom, pressure-resistant layer is arranged in the top of base material layer, buffer layer is arranged in the top of pressure-resistant layer, waterproof protective layer is arranged in the top of buffer layer.The utility model discloses a kind of degradable foamed plastic buffering packaging inner holder, the base material layer of inner holder uses polylactic acid, pressure-resistant layer uses polypropylene, waterproof protective layer uses polyurethane, these materials are not only degradable, reduce environmental pollution, also give tray good pressure resistance, waterproofness and overall stability respectively, protect egg from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of packaging inner tray technology, and in particular to a biodegradable foamed plastic cushioning packaging inner tray. Background Technology

[0002] Eggs are a fragile food and require special packaging protection during transportation and storage.

[0003] Traditional egg trays are mostly made of non-degradable foamed plastic or pulp materials. While non-degradable foamed plastic has good cushioning properties, it causes serious environmental pollution; while pulp materials are degradable, their cushioning performance is relatively weak and they are prone to deformation in humid environments. To address these issues, we have launched a biodegradable foamed plastic cushioning packaging tray. Utility Model Content

[0004] This utility model discloses a biodegradable foamed plastic cushioning packaging inner tray. It studies and improves the existing structure and its shortcomings, and provides a biodegradable foamed plastic cushioning packaging inner tray to achieve better practical value.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A biodegradable foamed plastic cushioning packaging inner tray includes an inner liner body, to which a packaging shell is fixedly connected. Positioning holes are equidistantly provided between the inner liner body and the interior of the packaging shell. The interior of the inner liner body and the interior of the packaging shell are respectively composed of a base material layer, a pressure-resistant layer, a cushioning layer, and a waterproof protective layer. The base material layer is located at the bottom, the pressure-resistant layer is located at the top of the base material layer, the cushioning layer is located at the top of the pressure-resistant layer, and the waterproof protective layer is located at the top of the cushioning layer.

[0006] In a preferred embodiment, the substrate layer is made of polylactic acid material.

[0007] In a preferred embodiment, the pressure-resistant layer is made of polypropylene material.

[0008] In a preferred embodiment, the buffer layer is made of foamed polyethylene material.

[0009] In a preferred embodiment, the waterproof protective layer is made of polyurethane material.

[0010] In a preferred embodiment, the substrate layer, pressure-resistant layer, buffer layer, and waterproof protective layer are all bonded together by hot pressing.

[0011] The biodegradable foamed plastic cushioning packaging inner tray provided by this utility model has the following advantages: Firstly, the substrate layer uses polylactic acid (PLA), a material that decomposes relatively quickly in the natural environment, effectively reducing environmental pollution. Compared to traditional non-degradable foamed plastics, it avoids the long-standing problem of white pollution, which is of great significance for environmental protection.

[0012] Secondly, the pressure-resistant layer is made of polypropylene, which has excellent pressure resistance. This allows the inner tray to withstand greater pressure, preventing eggs from cracking due to external impacts during transportation and providing solid protection for the eggs. The cushioning layer is made of foamed polyethylene, which has excellent cushioning properties. It can effectively absorb and disperse impact forces, further protecting the eggs from damage and ensuring their safety during transportation. The waterproof protective layer is made of polyurethane, which has good waterproof and moisture-proof properties. It can effectively prevent moisture from penetrating into the inner tray, protecting the eggs from the effects of a humid environment, thereby extending the shelf life of the eggs. The base layer, pressure-resistant layer, cushioning layer, and waterproof protective layer are tightly connected by a hot-pressing bonding process. This bonding method ensures a strong bond between the layers, improving the stability of the overall structure. This multi-layered material combination design significantly improves the durability of the inner tray, making it less prone to damage during use, thus extending its service life and reducing the cost of frequent inner tray replacements.

[0013] Thirdly, positioning holes are equidistantly spaced between the inner liner and the outer packaging. These positioning holes are not only used to place the eggs, but also to position the eggs in the next layer from the top. By placing the inner trays layer by layer, it is possible to effectively prevent the inner trays from shifting during transportation, ensuring the stability of the eggs and reducing damage caused by the shaking of the inner trays. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a biodegradable foamed plastic cushioning packaging inner tray proposed in this utility model.

[0015] Figure 2 This is a bottom view of a biodegradable foamed plastic cushioning packaging inner tray proposed in this utility model.

[0016] Figure 3 This is a front view schematic diagram of a biodegradable foamed plastic cushioning packaging inner tray proposed in this utility model.

[0017] Figure 4 This is a cross-sectional schematic diagram of the inner lining of a biodegradable foamed plastic cushioning packaging inner tray proposed in this utility model.

[0018] In the attached diagram: 1. Inner liner body; 2. Packaging outer shell; 3. Positioning hole; 4. Substrate layer; 5. Pressure-resistant layer; 6. Buffer layer; 7. Waterproof protective layer. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] It should be noted that, in the context of use, the terms up, down, left, right, front, back, top, bottom, forward, reverse, clockwise, and counterclockwise in the following description are used merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative positions and / or orientations between the various parts of the object and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should be noted that, in practice, unless otherwise explicitly specified and limited, the terms "installation," "fixing," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a structural connection or a mechanical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within 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. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] It should be noted that these and subsequent accompanying drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection of this utility model. Furthermore, variations in different embodiments can be appropriately combined. The components of the embodiments described and marked in the accompanying drawings can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The biodegradable foamed plastic cushioning packaging inner tray disclosed in this utility model is mainly used in the scenario of packaging inner trays.

[0024] Reference Figures 1 to 4A biodegradable foamed plastic cushioning packaging inner tray includes: an inner liner body 1, a packaging shell 2 fixedly connected to the outside of the inner liner body 1, positioning holes 3 equidistantly opened between the inner liner body 1 and the packaging shell 2, and the inner liner body 1 and the packaging shell 2 are respectively composed of a base material layer 4, a pressure-resistant layer 5, a cushioning layer 6 and a waterproof protective layer 7, the base material layer 4 is located at the bottom, the pressure-resistant layer 5 is located at the top of the base material layer 4, the cushioning layer 6 is located at the top of the pressure-resistant layer 5, and the waterproof protective layer 7 is located at the top of the cushioning layer 6; Substrate layer 4 is made of polylactic acid material; Pressure-resistant layer 5 is made of polypropylene material. Buffer layer 6 is made of foamed polyethylene material; Waterproof protective layer 7 is made of polyurethane material; The substrate layer 4, pressure-resistant layer 5, buffer layer 6, and waterproof protective layer 7 are all bonded together by hot pressing.

[0025] In the above technical solution, considering that traditional egg trays are mostly made of non-degradable foamed plastic or pulp materials, while non-degradable foamed plastic has good cushioning performance, it causes serious environmental pollution; and while pulp material is degradable, its cushioning performance is relatively weak and it is prone to deformation in humid environments, the specific operation is as follows: the base layer 4 is made of polylactic acid, the pressure-resistant layer 5 is made of polypropylene, and the waterproof protective layer 7 is made of polyurethane. These materials can decompose quickly in the natural environment, reducing environmental pollution and thus avoiding the long-term pollution problems caused by traditional non-degradable foamed plastics. At the same time, the pressure-resistant layer 5 is made of polypropylene, which has good pressure resistance, allowing the inner lining 1 to withstand greater pressure and preventing eggs from breaking due to external forces during transportation. The cushioning layer 6 is made of foamed polyethylene, which has good cushioning performance, allowing the inner lining 1 to effectively absorb and disperse impact force, protecting eggs from damage. The waterproof protective layer 7 is made of polyurethane, which has good waterproof and moisture-proof performance, effectively preventing moisture from penetrating into the inner tray and protecting eggs from the effects of humid environments. Positioning holes 3 are equidistantly spaced between the inner liner body 1 and the outer packaging shell 2 for placing eggs and positioning the eggs in the next layer from the top. This layering of inner trays prevents displacement during transportation and ensures egg stability. The base material layer 4, pressure-resistant layer 5, cushioning layer 6, and waterproof protective layer 7 are bonded together by hot pressing to ensure a strong bond between layers and improve the overall structural stability. This combination of multiple materials significantly enhances the durability of the inner tray, making it less prone to damage during use and extending its service life.

[0026] Working Principle: During use, the base layer 4 is made of polylactic acid, the pressure-resistant layer 5 is made of polypropylene, and the waterproof protective layer 7 is made of polyurethane. These materials decompose quickly in the natural environment, reducing pollution and avoiding the long-term environmental pollution problems caused by traditional non-degradable foamed plastics. Simultaneously, the pressure-resistant layer 5, made of polypropylene, has excellent pressure resistance, allowing the inner liner 1 to withstand significant pressure and preventing eggs from breaking during transportation. The cushioning layer 6, made of foamed polyethylene, has excellent cushioning properties, allowing the inner liner 1 to effectively absorb and disperse impact, protecting the eggs from damage. The waterproof protective layer 7, made of polyurethane, has excellent waterproof and moisture-proof properties, effectively preventing moisture from penetrating into the inner tray and protecting the eggs from humid environments. Positioning holes 3 are equidistantly spaced between the inner liner 1 and the outer packaging shell 2 for placing eggs and positioning the next layer of eggs from the top. Layering the inner tray layer by layer prevents displacement during transportation, ensuring the stability of the eggs. The base layer 4, pressure-resistant layer 5, buffer layer 6, and waterproof protective layer 7 are bonded together by hot pressing to ensure a strong bond between the layers and improve the stability of the overall structure. Through the combination of multiple materials, the durability of the inner tray is significantly improved. This makes the inner tray less prone to damage during use and extends its service life. Any content not described in detail in this specification is prior art known to those skilled in the art.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A biodegradable foamed plastic cushioning packaging inner tray, comprising an inner liner body (1), characterized in that, The outer side of the inner liner body (1) is fixedly connected to the outer packaging shell (2). Positioning holes (3) are provided at equal intervals between the inner liner body (1) and the inner packaging shell (2). The inner liner body (1) and the inner packaging shell (2) are respectively composed of a base material layer (4), a pressure-resistant layer (5), a buffer layer (6) and a waterproof protective layer (7). The base material layer (4) is located at the bottom, the pressure-resistant layer (5) is located at the top of the base material layer (4), the buffer layer (6) is located at the top of the pressure-resistant layer (5), and the waterproof protective layer (7) is located at the top of the buffer layer (6).

2. The biodegradable foamed plastic cushioning packaging inner tray according to claim 1, characterized in that, The substrate layer (4) is made of polylactic acid material.

3. The biodegradable foamed plastic cushioning packaging inner tray according to claim 1, characterized in that, The pressure-resistant layer (5) is made of polypropylene.

4. The biodegradable foamed plastic cushioning packaging inner tray according to claim 1, characterized in that, The buffer layer (6) is made of foamed polyethylene material.

5. The biodegradable foamed plastic cushioning packaging inner tray according to claim 1, characterized in that, The waterproof protective layer (7) is made of polyurethane material.

6. The biodegradable foamed plastic cushioning packaging inner tray according to claim 1, characterized in that, The substrate layer (4), pressure-resistant layer (5), buffer layer (6) and waterproof protective layer (7) are all bonded together by hot pressing.

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