Composite ecological paper with enhanced cushioning structure

Abstract

The utility model discloses a kind of composite ecological paper with enhanced buffer structure belong to packaging material technical field, including upper cover layer, buffer layer, lower cover layer, the upper cover layer, buffer layer, lower cover layer are sequentially arranged along thickness direction, buffer layer is equipped with bonding layer between upper cover layer, lower cover layer;The buffer layer is composed of several longitudinal and transverse staggered distribution buffer strip, the buffer strip is folded along the thickness direction of buffer layer several times and is zigzag, every adjacent four buffer strip is enclosed in buffer layer and forms buffer cavity, and the buffer cavity is equipped with several;The composite ecological paper of the utility model can be repeatedly buffered the impact of external force by elastic deformation, so that the product packaged by composite ecological paper plays a good protection effect.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, specifically to a composite eco-paper with an enhanced cushioning structure. Background Technology

[0002] Packaging materials are typically used to wrap products, providing a certain degree of protection. During transportation, corrugated cardboard or honeycomb cardboard boxes are commonly used for protection. Both corrugated and honeycomb cardboard have numerous cavities, providing some impact resistance and preventing the internal products from directly bearing external impacts. However, when subjected to external impacts, the corrugated layers of corrugated cardboard and the honeycomb layers of honeycomb cardboard are prone to irreversible deformation and collapse. This weakens the impact resistance at the collapsed areas, making it difficult for the cardboard to effectively cushion the impact when the collapsed areas are subjected to further external impacts, potentially damaging the internal products. Therefore, there is still room for improvement in the cushioning performance of existing corrugated and honeycomb cardboard. Utility Model Content

[0003] To address the technical deficiencies in the background art, this utility model proposes a composite eco-paper with an enhanced cushioning structure, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows: A composite eco-paper with an enhanced cushioning structure includes an upper cover layer, a cushioning layer, and a lower cover layer, wherein the upper cover layer, the cushioning layer, and the lower cover layer are arranged sequentially along the thickness direction, and an adhesive layer is provided between the cushioning layer and the upper cover layer and the lower cover layer. The buffer layer is composed of several interlaced buffer strips. The buffer strips are folded several times along the thickness direction of the buffer layer and are serrated. Every four adjacent buffer strips enclose the interior of the buffer layer to form a buffer cavity. There are several buffer cavities.

[0004] As a further technical solution of this utility model, any two intersecting buffer strips form an intersecting point at their intersecting positions, one of the buffer strips is provided with an embedding groove at the intersecting point, and the other buffer strip is embedded in the embedding groove.

[0005] As a further technical solution of this utility model, the buffer strip includes a first buffer strip extending longitudinally and a second buffer strip extending laterally. The embedding groove of the first buffer strip extends from the top of the first buffer strip to the middle of the buffer layer thickness direction, and the embedding groove of the second buffer strip extends from the bottom of the second buffer strip to the middle of the buffer layer thickness direction.

[0006] As a further technical solution of this utility model, the embedding groove of the first buffer strip and the embedding groove of the second buffer strip are matched one by one, and the embedding groove of the first buffer strip and the embedding groove of the second buffer strip are nested with each other and form an intersecting point.

[0007] As a further technical solution of this utility model, the top of the buffer strip is provided with an upper adhesive tape, the upper adhesive tape covers the lower surface of the upper cover layer, and the upper adhesive tape is fixedly connected to the upper cover layer; The bottom of the buffer strip is provided with a lower adhesive tape, which covers the upper surface of the lower cover layer and is fixedly connected to the lower cover layer.

[0008] The beneficial effects of this utility model are as follows: This utility model discloses a composite eco-paper with an internal reinforced cushioning structure. The composite eco-paper mainly consists of an upper covering layer, a cushioning layer, and a lower covering layer. When the upper or lower covering layer is subjected to external force, the cushioning layer is squeezed, and the cushioning strips near the force application point are compressed. After compression, the width of the cushioning strips increases, and adjacent cushioning strips are squeezed against each other and bend towards the inside of the cushioning cavity. When the external force disappears, the cushioning strips will rebound and restore their original structure, so that the cushioning layer achieves elastic deformation and buffers the impact of external force through elastic deformation. Packaging cartons made of composite eco-paper can buffer the impact of external force multiple times through elastic deformation, thereby playing a good protective role for the products inside the packaging cartons. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a composite eco-paper with an enhanced cushioning structure.

[0010] Figure 2 This is a front view of a composite eco-paper with an enhanced cushioning structure.

[0011] Figure 3 yes Figure 2 A partial schematic diagram of point A in the middle.

[0012] Figure 4 This is a schematic diagram showing the disassembly of the buffer layer of a composite eco-paper with an enhanced buffer structure.

[0013] Figure 5 This is a schematic diagram of the structure of a cushioning strip in a composite eco-paper with an enhanced cushioning structure.

[0014] Wherein: 1-upper cover layer, 2-buffer layer, 21-buffer strip, 21a-first buffer strip, 21b-second buffer strip, 22-buffer cavity, 23-interlacing point, 24-embedding groove, 25-upper adhesive tape, 26-lower adhesive tape, 3-lower cover layer. Detailed Implementation

[0015] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0016] A composite eco-paper with an enhanced cushioning structure includes an upper cover layer 1, a cushioning layer 2, and a lower cover layer 3. The upper cover layer 1, the cushioning layer 2, and the lower cover layer 3 are arranged sequentially along the thickness direction. An adhesive layer is provided between the cushioning layer 2 and the upper cover layer 1 and the lower cover layer 3. The buffer layer 2 is composed of several intersecting buffer strips 21. The buffer strips 21 are folded several times along the thickness direction of the buffer layer 2 and are serrated. Each set of four adjacent buffer strips 21 surrounds the interior of the buffer layer 2 to form a buffer cavity 22. There are several buffer cavities 22.

[0017] This utility model discloses a composite eco-paper with an internal reinforced cushioning structure, referring to... Figure 1 , Figure 2 , Figure 3 The composite eco-paper mainly consists of an upper covering layer 1, a buffer layer 2, and a lower covering layer 3. All three layers are made from eco-paper, an environmentally friendly material primarily made from recycled fibers. The upper covering layer 1, buffer layer 2, and lower covering layer 3 are sequentially bonded together along the thickness direction using eco-adhesive. The eco-adhesive cures between the layers to form an adhesive layer. This composite eco-paper, as a packaging material, is mainly used for making packaging boxes and other packaging products. In composite eco-paper, the upper covering layer 1 and the lower covering layer 3 can be eco-paper with the same thickness and density. The upper covering layer 1 or the lower covering layer 3 serves as the surface structure of the composite eco-paper. The two sides of the composite eco-paper come into contact with the packaged product and external objects in the packaging carton, respectively. In most application scenarios, the upper covering layer 1 and the lower covering layer 3 only need to ensure sufficient flatness and hardness on both sides of the composite eco-paper, and the two can be eco-paper with the same performance. In some embodiments, packaging cartons made of composite eco-paper need to package products with high moisture content, or the packaging cartons need to be placed in relatively humid locations. In this case, the composite eco-paper needs to prevent moisture from the product or the environment from penetrating into the interior, thereby ensuring the strength and structural stability of the composite eco-paper. In this case, a waterproof layer needs to be provided on the side of the upper covering layer 1 or the lower covering layer 3 away from the buffer layer 2. The waterproof layer can be formed by coating the upper covering layer 1 or the lower covering layer 3 with a waterproof material, or by laminating a waterproof film onto the surface of the upper covering layer 1 or the lower covering layer 3. The composite eco-paper can prevent moisture from penetrating into the interior through the surface waterproof layer, avoiding the buffer layer 2 from becoming weak due to water immersion, which helps to ensure the strength of the composite eco-paper. The composite eco-paper contains a buffer layer 2 formed between the upper cover layer 1 and the lower cover layer 3 by a series of crisscrossing buffer strips 21. These buffer strips 21 are folded several times along their width to form a serrated structure. Each buffer strip 21 acts like a spring between the upper cover layer 1 and the lower cover layer 3. When the upper cover layer 1 or the lower cover layer 3 is subjected to external force, the buffer layer 2 is compressed, causing the buffer strips 21 near the point of force application to be compressed. This compression increases the width of the buffer strips 21, causing adjacent buffer strips 21 to press against each other. Some buffer strips 21 are pushed towards the buffer cavity 22 due to this mutual compression. The buffer cavity 22 provides sufficient deformation space for the compression and bending of the buffer strip 21, preventing breakage due to lack of deformation space when the buffer strips 21 are squeezed together, thus ensuring the structural stability of the buffer layer 2. In addition, when the external force disappears, the buffer strip 21 will rebound and restore its original structure. The buffer layer 2 as a whole achieves one elastic deformation, and the buffer layer 2 can buffer the impact of the force through elastic deformation when subjected to external force again. The packaging carton made of composite ecological paper can buffer the impact of external force multiple times through the above elastic deformation, thereby playing a good protective role for the products inside the packaging carton. Furthermore, referring to Figure 1 , Figure 5 Any two intersecting buffer strips 21 form an intersection point 23 at their intersection positions. One buffer strip 21 has an embedding groove 24 at the intersection point 23, and the other buffer strip 21 is embedded in the embedding groove 24. Several buffer strips 21 inside the buffer layer 2 are interlocked through the embedding grooves 24, so that every two intersecting buffer strips 21 meet at the embedding grooves 24. This can reduce the manufacturing difficulty when several buffer strips 21 are distributed in a crisscross manner to form the buffer layer 2. Furthermore, the buffer strip 21 includes a first buffer strip 21a extending longitudinally and a second buffer strip 21b extending laterally. The embedding groove 24 of the first buffer strip 21a extends from the top of the first buffer strip 21a to the middle of the thickness direction of the buffer layer 2, and the embedding groove 24 of the second buffer strip 21b extends from the bottom of the second buffer strip 21b to the middle of the thickness direction of the buffer layer 2. The embedding grooves 24 of the first buffer strip 21a and the embedding grooves 24 of the second buffer strip 21b are matched one by one, and the embedding grooves 24 of the first buffer strip 21a and the embedding grooves 24 of the second buffer strip 21b are nested with each other and form an intersection point 23. Based on the above-described structure, in the process of setting the buffer layer 2 between the upper cover layer 1 and the lower cover layer 3, firstly, several longitudinally extending first buffer strips 21a are bonded and fixed on the upper surface of the lower cover layer 3 with eco-friendly adhesive. Then, several second buffer strips 21b are embedded into the first buffer strips 21a in a matching manner with the embedding grooves 24. Several crisscrossing buffer strips 21 form the buffer layer 2 on the upper surface of the lower cover layer 3. Finally, the upper cover layer 1 is bonded and fixed on the upper surface of the buffer layer 2 with eco-friendly adhesive, and the composite eco-friendly paper of this utility model is finally obtained.

[0018] As one of the preferred embodiments of this utility model, refer to Figure 2 , Figure 3 The buffer strip 21 has an upper adhesive tape 25 at its top, which covers the lower surface of the upper cover layer 1 and is fixedly connected to the upper cover layer 1. The buffer strip 21 also has a lower adhesive tape 26 at its bottom, which covers the upper surface of the lower cover layer 3 and is fixedly connected to the lower cover layer 3. The upper adhesive tape 25 of the buffer strip 21 is bonded to the upper cover layer 1 with eco-friendly adhesive, and the lower adhesive tape 26 of the buffer strip 21 is bonded to the lower cover layer 3 with eco-friendly adhesive. The upper adhesive tape 25 and the lower adhesive tape 26 can increase the contact area when the layers inside the composite eco-friendly paper are bonded to each other, which is beneficial to improving the firmness of the bond. It should be noted that the embedding groove 24 of the first buffer strip 21a extends upward from the middle of the first buffer strip 21a and passes through the upper adhesive tape 25. Similarly, the embedding groove 24 of the second buffer strip 21b extends downward from the middle of the second buffer strip 21b and passes through the lower adhesive tape 26. This allows the first buffer strip 21a and the second buffer strip 21b to be aligned and nested together after being embedded through the embedding groove 24, so that the crisscrossing buffer strips 21 form a buffer layer 2 between the upper cover layer 1 and the lower cover layer 3.

[0019] In summary, this utility model discloses a composite eco-paper with an internal reinforced cushioning structure. The composite eco-paper mainly consists of an upper covering layer 1, a cushioning layer 2, and a lower covering layer 3. When the upper covering layer 1 or the lower covering layer 3 is subjected to external force, the cushioning layer 2 will be squeezed, and the cushioning strips 21 near the force application point will be compressed. After compression, the width of the cushioning strips 21 increases, and the adjacent cushioning strips 21 are squeezed against each other and bent towards the interior of the cushioning cavity 22. When the external force disappears, the cushioning strips 21 will rebound and restore their original structure, so that the cushioning layer 2 achieves elastic deformation and buffers the impact of external force through elastic deformation. The packaging carton made of composite eco-paper can buffer the impact of external force multiple times through elastic deformation, thereby playing a good protective role for the products inside the packaging carton.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A composite eco-paper with an enhanced cushioning structure, comprising an upper covering layer (1), a cushioning layer (2), and a lower covering layer (3), characterized in that, The upper cover layer (1), the buffer layer (2), and the lower cover layer (3) are arranged sequentially along the thickness direction, and an adhesive layer is provided between the buffer layer (2) and the upper cover layer (1) and the lower cover layer (3); The buffer layer (2) is composed of several intersecting buffer strips (21). The buffer strips (21) are folded several times along the thickness direction of the buffer layer (2) and are serrated. Each set of four adjacent buffer strips (21) surrounds the interior of the buffer layer (2) to form a buffer cavity (22). The buffer cavity (22) is provided in several ways.

2. The composite eco-paper with an enhanced cushioning structure according to claim 1, characterized in that, Any two intersecting buffer strips (21) form an intersection point (23) at their intersection positions. One of the buffer strips (21) has an embedding groove (24) at the intersection point (23), and the other buffer strip (21) is embedded in the embedding groove (24).

3. The composite eco-paper with an enhanced cushioning structure according to claim 2, characterized in that, The buffer strip (21) includes a first buffer strip (21a) extending longitudinally and a second buffer strip (21b) extending laterally. The embedding groove (24) of the first buffer strip (21a) extends from the top of the first buffer strip (21a) to the middle of the thickness direction of the buffer layer (2), and the embedding groove (24) of the second buffer strip (21b) extends from the bottom of the second buffer strip (21b) to the middle of the thickness direction of the buffer layer (2).

4. The composite eco-paper with an enhanced cushioning structure according to claim 3, characterized in that, The embedding slot (24) of the first buffer strip (21a) matches the embedding slot (24) of the second buffer strip (21b) one by one. The embedding slot (24) of the first buffer strip (21a) and the embedding slot (24) of the second buffer strip (21b) are nested together and form an intersecting point (23).

5. The composite eco-paper with an enhanced cushioning structure according to claim 1, characterized in that, The top of the buffer strip (21) is provided with an upper adhesive tape (25), which covers the lower surface of the upper cover layer (1) and is fixedly connected to the upper cover layer (1). The bottom of the buffer strip (21) is provided with a lower adhesive tape (26), which covers the upper surface of the lower cover layer (3) and is fixedly connected to the lower cover layer (3).

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