Water-resistant composite packaging paperboard with good buffering performance

Through the innovative design of a multi-layered gradient density structure and a waterproof layer, the shortcomings of traditional packaging materials in terms of cushioning and waterproofing have been solved, achieving lightweight and efficient packaging protection that can meet the transportation needs of various environments.

CN224063186UActive Publication Date: 2026-03-31SHANDONG DINGHUI PACKAGING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional packaging materials are insufficient in terms of cushioning and waterproofing, making the products inside the packaging easily damaged. In addition, the materials are too heavy, which is not conducive to reducing costs and improving efficiency.

Method used

It adopts a multi-layered gradient density structure design, including a rigid plate layer, a buffer intermediate layer and a waterproof layer. The buffer intermediate layer consists of an encapsulation frame, a substrate layer and rubber pillars. The waterproof layer uses polyvinyl alcohol solution and nano-silica particles to form a waterproof membrane.

Benefits of technology

It significantly improves cushioning and water resistance, reduces breakage rate, and achieves a balance between lightweight and cushioning performance, which is in line with the development trend of green packaging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof composite packaging paperboard with good buffering performance, which comprises a paperboard body, a buffering middle layer is arranged in the paperboard body, a bottom plate layer is fixed at the bottom of the buffering middle layer, a supporting base layer and a hard paperboard layer are sequentially arranged at the top of the buffering middle layer, and the bottom plate layer is fixed at the bottom of the buffering middle layer. A waterproof layer is arranged at the top of the hardboard layer; the buffer middle layer comprises a packaging frame and a substrate layer arranged in the packaging frame; and the bubble pressing layer is arranged between the supporting base layer and the hardboard layer, and first cellosilk and second cellosilk are evenly arranged on the bubble pressing layer. The outer layer is made of high-strength hard plate layer materials and can effectively play a protection role, it is guaranteed that packaged objects are prevented from being impacted by external force in the transportation and carrying process, and the safety of the packaged objects is guaranteed; and the inner layer is made of rubber columns or other soft materials, so that a good buffering effect is provided, and the capability of protecting internal articles is remarkably improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to packing paper board technical field, concretely is a kind of water-resistant composite packing paper board with good buffering performance. BACKGROUND

[0002] With the rapid development of logistics industry, the buffering performance and waterproof performance of packaging materials are increasingly valued. In traditional packaging materials, in order to improve the buffering performance, the usual practice is to use foam material, plastic buffer block and the like as a buffer layer. These traditional methods can absorb impact force and reduce collision damage to some extent, but there are still the following deficiencies in practical application: traditional foam material and plastic buffer block have certain limitations in absorbing impact force and reducing collision damage. At the same time, these materials are not ideal in waterproof performance, and the products inside the package are easily damaged due to water penetration. In addition, traditional packaging materials are often too thick and heavy, which is not conducive to reducing packaging cost and improving packaging efficiency. SUMMARY

[0003] The utility model aims at providing a kind of water-resistant composite packing paper board with good buffering performance to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of water-resistant composite packing paper board with good buffering performance, comprising

[0005] Paperboard body, the inside of the paperboard body is provided with a buffer intermediate layer, and the bottom of the buffer intermediate layer is fixed with a bottom plate layer, the top of the buffer intermediate layer is sequentially provided with a support base layer and a hardboard layer, and the top of the hardboard layer is provided with a waterproof layer;

[0006] Buffer intermediate layer, the buffer intermediate layer includes an encapsulation frame and a base plate layer arranged inside the encapsulation frame, the base plate layer is uniformly provided with a rubber column, and the top of the rubber column is connected with the bottom of the support base layer through an adhesive layer one;

[0007] Bubble layer, the bubble layer is arranged between the support base layer and the hardboard layer, and the bubble layer is uniformly provided with fiber silk one and fiber silk two.

[0008] Further, the fiber silk one and fiber silk two are staggered on the bubble layer to form a pattern, and the connection part of the fiber silk one and fiber silk two is provided with a concave-convex bubble in an orderly manner.

[0009] Further, the waterproof layer includes a single-layer paperboard and a polyvinyl alcohol solution coated on the surface of the single-layer paperboard, and the inside of the polyvinyl alcohol solution is uniformly provided with silicon dioxide particles.

[0010] Further, the substrate layer is provided with a limiting hole at the position corresponding to the rubber column, and a cavity is arranged above the substrate layer between the rubber columns and inside the packaging frame.

[0011] Further, the rubber column comprises a support column body and a fixing ring arranged outside the support column body, and the bottom of the support column body is bonded to the inner wall of the limiting hole through an adhesive layer.

[0012] The utility model relates to a kind of water-resistant composite packaging paperboard with good buffering performance, compared with prior art, the utility model shows the following remarkable beneficial effects:

[0013] Firstly, the utility model adopts an innovative multi-layer structure design, each layer of paperboard uses different density materials, forming a gradual density structure. This design cleverly solves the problem of balancing between buffering performance and strength of traditional packaging materials. Specifically, the outer layer uses high-strength hard board material, which can effectively bear the protection effect and ensure the safety of packaged goods during transportation and handling. The inner layer uses rubber columns or other soft materials to provide good buffering effect and significantly improve the protection of internal goods. This structural design makes the packaging paperboard both lightweight and has excellent buffering performance, greatly reducing the risk of damage during transportation.

[0014] The following is a detailed description of the beneficial effects of the utility model:

[0015] 1. Improved buffering performance: through the multi-layer gradual density structure, the utility model can effectively absorb and disperse impact force when impacted, protecting internal goods from damage. Compared with traditional single-density packaging materials, the buffering performance of the utility model is significantly enhanced.

[0016] 2. Balance between lightweight and buffering performance: the utility model optimizes the density of each layer of material to achieve a perfect balance between lightweight and buffering performance. This balance not only reduces the weight of the package, but also maintains excellent protection performance.

[0017] 3. Enhanced water resistance: the utility model adds a waterproof layer on the surface of the hard board layer, using polyvinyl alcohol as the coating material. Polyvinyl alcohol has excellent moisture absorption and film-forming properties, forming a uniform waterproof film on the surface of the paperboard, effectively preventing water penetration. The addition of nano-silicon dioxide particles further improves the water resistance of the waterproof layer, allowing the utility model to keep packaged goods dry in humid or harsh environments.

[0018] 4. The reduction of breakage rate and the improvement of packaging efficiency: due to the better buffering performance and water resistance of the utility model, the breakage of packaging materials is reduced during transportation, the packaging efficiency is improved, and the overall packaging cost is reduced.

[0019] 5. The use of environmentally friendly materials: the materials selected by the utility model are all environmentally friendly materials, which not only meet the development trend of green packaging, but also help to reduce the impact on the environment.

[0020] Overall, the utility model has the following beneficial effects compared with the prior art:

[0021] Significant improvement in buffering performance: effectively protects internal items from damage;

[0022] Optimized structure design: balance between portability and buffering performance is achieved;

[0023] Significant improvement in water resistance: suitable for packaging in various harsh environments;

[0024] Significant reduction in breakage rate: improves packaging efficiency and reduces packaging cost;

[0025] Application of environmentally friendly materials: meets the development trend of green packaging and has social responsibility value.

[0026] In summary, the utility model has significant advantages in improving packaging performance, reducing cost, and enhancing water resistance, and has broad market application prospects and huge economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic view of the internal structure of the utility model;

[0028] Figure 2 is a schematic view of the buffering intermediate layer structure of the utility model;

[0029] Figure 3 is a schematic view of the waterproof layer structure of the utility model;

[0030] Figure 4 is a schematic view of the bubble pressing layer structure of the utility model;

[0031] Figure 5 is a schematic view of the rubber column structure of the utility model;

[0032] In the figure: 1, paperboard body; 2, rubber column; 201, support column body; 202, fixed sleeve ring; 3, buffer intermediate layer; 4, adhesive layer one; 5, waterproof layer; 501, polyvinyl alcohol solution; 502, silicon dioxide particles; 6, hardboard layer; 7, bubble pressing layer; 701, fiber silk one; 702, fiber silk two; 703, bubble pressing; 8, support base layer; 9, packaging frame; 10, base plate layer; 1001, limiting hole; 11, cavity; 12, bottom plate layer; 13, adhesive layer two. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] Please refer to Figures 1-5 An embodiment provided by the utility model: a water-resistant composite packaging paperboard with good buffering performance, comprising

[0035] The paperboard body 1 is internally provided with the buffer intermediate layer 3, the bottom of the buffer intermediate layer 3 is fixed with the bottom plate layer 12, the top of the buffer intermediate layer 3 is sequentially provided with the support base layer 8 and the hardboard layer 6, and the top of the hardboard layer 6 is provided with the waterproof layer 5.

[0036] The waterproof layer 5 comprises a single-layer paperboard and polyvinyl alcohol solution 501 coated on the surface of the single-layer paperboard, and the interior of the polyvinyl alcohol solution 501 is uniformly provided with silicon dioxide particles 502.

[0037] Selection of coating material: add nano silicon dioxide particles in the PVA solution. The nano silicon dioxide particles have good waterproof performance.

[0038] Coating process:

[0039] Dissolve PVA in water to prepare a solution with a certain concentration;

[0040] Uniformly disperse nano silicon dioxide particles in the PVA solution;

[0041] Immerse the paperboard substrate in the PVA solution to uniformly coat the PVA solution and nano silicon dioxide particles on the surface of the paperboard;

[0042] Take out the paperboard, let the excess solution drip off, and ensure that the surface of the paperboard is uniformly coated;

[0043] Place the coated paperboard in a ventilated place for drying.

[0044] The surface of the dried paperboard forms a uniform waterproof layer.

[0045] The buffering intermediate layer 3 includes the packaging frame 9 and the substrate layer 10 arranged inside the packaging frame 9, and the rubber columns 2 are uniformly arranged on the substrate layer 10, and the top of the rubber column 2 is connected with the bottom of the supporting base layer 8 through the adhesive layer one 4;

[0046] The buffering intermediate layer 3 is installed in the equipment to ensure that the packaging frame 9 is tightly connected with the main body structure of the equipment.

[0047] Absorbing impact force: when the equipment is subjected to external impact, the buffering intermediate layer 3 deforms elastically through the rubber columns 2 to absorb and buffer the impact force.

[0048] Dispersing impact force: the rubber columns 2 disperse the impact force to the entire substrate layer 10 after being subjected to the impact force, further reducing the influence of the impact force on the internal structure of the equipment.

[0049] Restoring original state: after the impact force disappears, the rubber columns 2 gradually restore to the original state to ensure that the buffering intermediate layer 3 can continuously withstand external impact.

[0050] The adhesive layer one 4 is made of a high-temperature-resistant and corrosion-resistant adhesive to ensure the stable connection between the rubber columns 2 and the supporting base layer 8.

[0051] The bubble layer 7 is arranged between the supporting base layer 8 and the hardboard layer 6, and the bubble layer 7 is uniformly provided with the fiber silk one 701 and the fiber silk two 702.

[0052] The fiber silk one 701 and the fiber silk two 702 are arranged in a staggered manner on the bubble layer 7 to form a pattern, and the connection part of the fiber silk one 701 and the fiber silk two 702 is provided with the concave-convex bubble 703 arranged in an alternating manner.

[0053] The fiber silk one 701 and the fiber silk two 702 form a pattern on the bubble layer 7, so that the entire structure has excellent mechanical properties and stability.

[0054] Specifically, the fiber silk one 701 and the fiber silk two 702 are made of high-strength polyester material, which can prevent the paper from being easily broken when stretched, thereby enhancing the tensile strength of the paper.

[0055] The staggered arrangement of the fiber silk one 701 and the fiber silk two 702 on the bubble layer 7 is as shown in the drawing. Figure 4 The distance between the adjacent fiber silk one 701 and the fiber silk two 702 is equal.

[0056] The connection part of the fiber silk one 701 and the fiber silk two 702 is provided with the concave-convex bubble 703 arranged in an alternating manner.

[0057] The specific shape of the concave-convex bubble 703 is a hemisphere. The concave-convex bubble 703 serves to provide additional support at the junction of the fiber filament one 701 and the fiber filament two 702, thereby enhancing the stability of the entire structure. The material of the concave-convex bubble 703 is the same as that of the fiber filament one 701 and the fiber filament two 702, i.e., high-strength polyester material.

[0058] The substrate layer 10 is provided with a limiting hole 1001 at the position corresponding to the rubber column 2. The substrate layer 10 between the connected rubber columns 2 is provided with a cavity 11 above the inside of the packaging frame 9.

[0059] The cavity 11 is a buffer space, which mainly serves to provide a buffering effect when subjected to external force impact.

[0060] The rubber column 2 includes a support column body 201 and a fixing sleeve ring 202 arranged outside the support column body 201, and the bottom of the support column body 201 is bonded to the inner wall of the limiting hole 1001 through a second adhesive layer 13.

[0061] The support column body 201 is in a cylindrical shape, and the bottom thereof is bonded to the inner wall of the limiting hole 1001 through an adhesive layer 213. The fixing sleeve ring 202 is sleeved outside the support column body 201, which serves to enhance the stability of the rubber column 2.

[0062] The support column body 201 is made of rubber material, which has good elasticity and wear resistance. The height and diameter of the support column body 201 can be designed according to actual application requirements.

[0063] The fixing sleeve ring 202 is made of the same rubber material as the support column body 201 or other materials with similar properties, and the inner diameter thereof is slightly larger than the outer diameter of the support column body 201, so as to be sleeved outside the support column body 201.

[0064] The adhesive layer 213 is made of rubber or rubber-based adhesive with bonding properties, which is used to firmly bond the bottom of the support column body 201 to the inner wall of the limiting hole 1001.

[0065] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0066] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, "and / or" means and or, unless context clearly indicates otherwise. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0067] It should be noted that the terms "first", "second", and the like, used in the specification and in the claims of the application as well as above are intended to distinguish analogous objects and not to necessarily describe a particular sequential or chronological order. It is to be understood that data so used can be interchanged, where appropriate, so that the embodiments of the application described herein can be carried out in sequences other than those illustrated or described herein.

[0068] The preferred embodiments of the present application are only used for the purpose of illustration and not for the purpose of limiting the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the present application.

Claims

1. A water-resistant composite packaging paperboard having good cushioning properties, characterized in that: Comprising The paperboard body (1) is internally provided with a buffer intermediate layer (3), and the bottom of the buffer intermediate layer (3) is fixed with a bottom plate layer (12), the top of the buffer intermediate layer (3) is sequentially provided with a supporting base layer (8) and a hardboard layer (6), and the top of the hardboard layer (6) is provided with a waterproof layer (5); The buffer intermediate layer (3) comprises an encapsulation frame (9) and a base plate layer (10) arranged inside the encapsulation frame (9), the base plate layer (10) is uniformly provided with rubber columns (2), and the top of the rubber column (2) is connected with the bottom of the supporting base layer (8) through a glue layer (4). The bubble pressing layer (7) is arranged between the supporting base layer (8) and the hardboard layer (6), and the bubble pressing layer (7) is uniformly provided with fiber filaments (701) and fiber filaments (702).

2. The water-resistant composite packaging paperboard having a good cushioning performance according to claim 1, characterized by: The fiber filaments (701) and the fiber filaments (702) are arranged in a staggered manner on the bubble pressing layer (7) to form a pattern, and the junctions of the fiber filaments (701) and the fiber filaments (702) are provided with concave-convex bubble pressing (703) in an alternating manner.

3. The water-resistant composite packaging paperboard having a good cushioning performance according to claim 1, characterized by: The waterproof layer (5) comprises a single-layer paperboard and a polyvinyl alcohol solution (501) coated on the surface of the single-layer paperboard, and the inside of the polyvinyl alcohol solution (501) is uniformly provided with silica particles (502).

4. The water-resistant composite packaging paperboard having a good cushioning performance according to claim 1, characterized by: The base plate layer (10) is provided with a limiting hole (1001) corresponding to the position of the rubber column (2), and the base plate layer (10) above the connected rubber columns (2) and the inside of the encapsulation frame (9) are provided with a cavity (11).

5. The water-resistant composite packaging paperboard having a good cushioning performance according to claim 1, characterized by: The rubber column (2) comprises a supporting column (201) and a fixing sleeve (202) arranged outside the supporting column (201), and the bottom of the supporting column (201) is bonded with the inner wall of the limiting hole (1001) through a glue layer (13).