A paperboard for toilet paper having a reinforced core
Patent Information
- Application Number
- CN202521527411.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-07-21
AI Technical Summary
[0005]本申请的目的在于：为解决上述背景技术中提出的现有的坑纸板结构无法有效抵御尖锐物体的刺穿和受压后难以自主恢复，导致包装盒容易损坏，进而使包装内的物品受到损坏的问题，本申请提供了一种具有加强芯的坑纸板
1、本申请，通过在表层纸板一上固定上增强层后，在增强层上固定上防刺网，然后在防刺网上固定上支撑层，让支撑层上的蜂窝孔与防刺网的孔洞对应，然后再在支撑层上固定上防刺网，在防刺网上利用胶水固定上表层纸板二，形成加强芯层，刺网为玻璃纤维网，具有较高的强度和耐磨损性，能够有效抵御尖锐物体的刺穿，玻璃纤维网可以与纸板层紧密结合，形成坚固的防护层，支撑层为高密度牛皮纸，这种结构具有重量轻、强度高的特点，达到了能够为坑纸板提供更好的抗冲击性能和强度，同时加强芯层能够在受压后自主恢复，同时减少有尖锐物损坏坑纸板包装盒的可能的目的。
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Figure CN224784629U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of packaging paperboard, and in particular to a corrugated paperboard with a reinforced core. Background Technology
[0002] Corrugated cardboard is a widely used material in the packaging industry. It is widely used because of its good cushioning performance, compression resistance and cost-effectiveness. It is usually composed of multiple layers of cardboard and is formed into cardboard with a specific structure through special processing technology, which can effectively protect the items inside the packaging from external impact and damage.
[0003] Existing corrugated cardboard typically consists of a top layer and an intermediate support layer. The top layer provides external protection and aesthetics, while the intermediate support layer serves as a cushion and support. Most existing corrugated cardboard uses a simple honeycomb structure or a single layer of cardboard as the support layer, which can provide cushioning performance to a certain extent.
[0004] In practical applications, especially when packaging fragile items or products requiring a high level of protection, the existing corrugated cardboard structure cannot effectively resist puncture by sharp objects and is difficult to recover on its own after being compressed, making the packaging box easy to be damaged, which in turn damages the items inside. Utility Model Content
[0005] The purpose of this application is to address the problem that existing corrugated cardboard structures, as mentioned in the background art, cannot effectively resist puncture by sharp objects and are difficult to recover on their own after being compressed, leading to easy damage to the packaging box and consequently damage to the items inside the packaging. This application provides a corrugated cardboard with a reinforcing core.
[0006] To achieve the above objectives, this application specifically adopts the following technical solution: A corrugated cardboard with a reinforced core includes a first surface cardboard, a first waterproof layer fixed on one side of the first surface cardboard, a first reinforcing layer fixed on the side of the first surface cardboard away from the first waterproof layer, a second surface cardboard disposed on the second reinforcing layer, a second reinforcing core layer disposed between the second reinforcing layer and the second surface cardboard, and a second waterproof layer disposed on the side of the second surface cardboard away from the second reinforcing core layer.
[0007] By adopting the above technical solution, a reinforcing layer is fixed on the first surface cardboard, and a reinforcing core layer is bonded between the reinforcing layer and the second surface cardboard using glue. Then, a waterproof layer is fixed on the second surface cardboard using glue. This provides the corrugated cardboard with better impact resistance and strength. At the same time, the reinforcing core layer can recover on its own after being compressed, and the possibility of sharp objects damaging the corrugated cardboard packaging box is reduced.
[0008] Furthermore, the reinforcing core layer includes a support layer disposed between the reinforcing layer and the second surface cardboard. Both sides of the support layer are fixed with anti-stab mesh, and the anti-stab mesh on both sides of the support layer is fixedly connected to the reinforcing layer and the second surface cardboard, respectively. A plurality of filling support blocks are disposed on the support layer.
[0009] By adopting the above technical solution, the support layer provides support for the first and second surface paperboards, and the anti-stab mesh protects against punctures, thereby providing better impact resistance and strength for the corrugated cardboard body. This reduces the possibility of damage to the packaged items caused by damage to the packaging box when using corrugated cardboard for packaging, and also reduces the possibility of sharp objects damaging the corrugated cardboard packaging box.
[0010] Furthermore, the support layer is honeycomb-shaped and made of high-density kraft paper. The filling support block is located in the honeycomb holes of the support layer, and both ends of the filling support block are fixedly connected to the reinforcing layer and the surface paperboard.
[0011] By adopting the above technical solution, the support layer is honeycomb-shaped and made of kraft paper, thus achieving the characteristics of being lightweight and high-strength.
[0012] Furthermore, the anti-stab mesh is a fiberglass mesh, and the holes in the anti-stab mesh correspond to the honeycomb-shaped holes in the support layer.
[0013] By adopting the above technical solution, the fiberglass mesh has high strength and wear resistance, thus effectively resisting the puncture of sharp objects.
[0014] Furthermore, the filling support block is a polyurethane foam block.
[0015] By adopting the above technical solution, polyurethane foam is a lightweight material with excellent resilience, which can quickly restore its original shape after the force is removed.
[0016] Furthermore, the waterproof layer is a plastic film composite layer.
[0017] By adopting the above technical solution, the plastic film composite layer is a polyethylene film, which can completely block moisture and is suitable for packaging that requires high waterproof performance.
[0018] Furthermore, the second waterproof layer is a waterproof base paper layer.
[0019] By adopting the above technical solution, a waterproofing agent is added to the waterproof base paper during the production process, which can effectively prevent water penetration.
[0020] Furthermore, the reinforcing layer is a thin layer of glass fiber reinforced plastic.
[0021] By adopting the above technical solution and using glass fiber reinforced plastic thin layer as reinforcement layer, the compression and bending resistance of paperboard can be further improved.
[0022] In summary, this application includes at least one of the following beneficial effects; 1. In this application, after fixing a reinforcing layer to the first surface cardboard, a stab-proof mesh is fixed to the reinforcing layer, and then a support layer is fixed to the stab-proof mesh, so that the honeycomb holes on the support layer correspond to the holes of the stab-proof mesh. Then, a stab-proof mesh is fixed to the support layer, and the second surface cardboard is fixed to the stab-proof mesh with glue to form a reinforced core layer. The stab-proof mesh is made of glass fiber mesh, which has high strength and wear resistance and can effectively resist the puncture of sharp objects. The glass fiber mesh can be tightly bonded to the cardboard layer to form a strong protective layer. The support layer is made of high-density kraft paper. This structure is lightweight and high-strength, which achieves the purpose of providing better impact resistance and strength for corrugated cardboard. At the same time, the reinforced core layer can recover on its own after being compressed, and at the same time, it reduces the possibility of sharp objects damaging the corrugated cardboard packaging box.
[0023] 2. In this application, by using a glass fiber reinforced plastic thin layer, which has high strength and rigidity, it can be firmly bonded to the surface paperboard and the anti-stab mesh by an adhesive, thereby achieving the purpose of further improving the compression and bending resistance of the paperboard. Attached Figure Description
[0024] Figure 1 This is a first three-dimensional structural schematic diagram of the corrugated cardboard with a reinforcing core in this application; Figure 2 This is a schematic diagram of the disassembled structure of the corrugated cardboard with a reinforcing core in this application; Figure 3 This application Figure 2 Enlarged diagram of point A in the middle.
[0025] Explanation of reference numerals in the attached figures: 1. Surface paperboard one; 2. Surface paperboard two; 3. Reinforcing layer; 4. Reinforcing core layer; 41. Anti-stab mesh; 42. Support layer; 43. Filler support block; 5. Waterproof layer one; 6. Waterproof layer two. Detailed Implementation
[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0027] This application discloses a corrugated cardboard with a reinforcing core.
[0028] Reference Figure 1 , Figure 2 and Figure 3A corrugated cardboard with a reinforced core includes a surface cardboard 1, a waterproof layer 5 fixed on one side of the surface cardboard 1, a reinforcing layer 3 fixed on the side of the surface cardboard 1 away from the waterproof layer 5, a second surface cardboard 2 disposed on the reinforcing layer 3, a reinforcing core layer 4 disposed between the reinforcing layer 3 and the second surface cardboard 2, and a second waterproof layer 6 disposed on the side of the second surface cardboard 2 away from the reinforcing core layer 4.
[0029] A reinforcing layer 3 is fixed onto the outer cardboard 1. A reinforcing core layer 4 is then glued between the reinforcing layer 3 and the outer cardboard 2. A waterproof layer 6 is then glued onto the outer cardboard 2, and a waterproof layer 5 is glued onto the outer cardboard 1. The cardboard is then pressed together using a pressing machine to form a corrugated cardboard. When using this corrugated cardboard to produce packaging boxes, the side of the outer cardboard 2 with the waterproof layer 6 is used as the inner layer of the packaging box. When the corrugated cardboard is compressed, the outer cardboard 1 is compressed, pressing against the reinforcing layer 3. The reinforcing layer 3 supports the outer cardboard 1, and the reinforcing core layer is compressed. Layer 4, the reinforcing core layer 4, supports the outer cardboard 1, improving the compressive strength of the outer cardboard 1. The waterproof layer 5 on the outer cardboard 1 waterproofs the outside of the packaging box and the inside of the packaging box. At the same time, when the packaging box is punctured, the reinforcing core layer 4 protects against punctures. By fixing the reinforcing core layer 4 between the outer cardboard 1 and the outer cardboard 2, the overall strength of the corrugated cardboard is increased, thereby providing better impact resistance and strength for the corrugated cardboard. At the same time, the reinforcing core layer 4 can recover on its own after being compressed, and reduces the possibility of sharp objects damaging the corrugated cardboard packaging box.
[0030] Reference Figure 1 , Figure 2 and Figure 3 The reinforcing core layer 4 includes a support layer 42 disposed between the reinforcing layer 3 and the second surface paperboard 2. Both sides of the support layer 42 are fixed with anti-stab mesh 41. The anti-stab mesh 41 on both sides of the support layer 42 is fixedly connected to the reinforcing layer 3 and the second surface paperboard 2 respectively. Several filling support blocks 43 are disposed on the support layer 42.
[0031] In addition, the support layer 42 is honeycomb-shaped and made of high-density kraft paper. The filling support block 43 is located in the honeycomb holes of the support layer 42, and both ends of the filling support block 43 are fixedly connected to the reinforcing layer 3 and the surface paperboard 2.
[0032] Furthermore, the anti-stab mesh 41 is made of fiberglass mesh, and the holes of the anti-stab mesh 41 correspond to the honeycomb-shaped holes of the support layer 42.
[0033] Furthermore, the filler support block 43 is a polyurethane foam block.
[0034] After fixing the reinforcing layer 3 onto the surface cardboard 1, a stab-proof mesh 41 is fixed onto the reinforcing layer 3. Then, a supporting layer 42 is fixed onto the stab-proof mesh 41, ensuring the honeycomb holes on the supporting layer 42 correspond to the holes in the stab-proof mesh 41. Next, the stab-proof mesh 41 is fixed onto the supporting layer 42. Finally, the surface cardboard 2 is glued onto the stab-proof mesh 41 to form the reinforcing core layer 4. The stab-proof mesh is made of fiberglass, possessing high strength and wear resistance, effectively resisting punctures from sharp objects. The fiberglass mesh can be tightly bonded to the cardboard layers, forming a robust protective layer. The supporting layer 42 is made of high-density kraft paper. This structure is lightweight and high-strength, and the size of its honeycomb units can be adjusted according to the intended use of the cardboard. For packaging requiring high strength, the honeycomb unit can be designed to be smaller and thicker; while for some ordinary packaging, the honeycomb unit can be appropriately enlarged to reduce costs. Polyurethane foam is a lightweight material with excellent resilience. It can deform under external force and quickly return to its original shape after the force is removed, allowing the support layer 42 to return to its original shape. By setting the support layer 42 between the surface cardboard 1 and the surface cardboard 2, and then fixing anti-stab mesh 41 on both sides of the support layer 42, the corrugated cardboard body can be provided with better impact resistance and strength, reducing the possibility of damage to the packaged items due to damage to the packaging box when using corrugated cardboard for packaging, and reducing the possibility of sharp objects damaging the corrugated cardboard packaging box.
[0035] Reference Figure 1 and Figure 2 Waterproof layer 5 is a plastic film composite layer.
[0036] In addition, waterproof layer 26 is a waterproof base paper layer.
[0037] A plastic film is laminated onto the surface cardboard 1 as a waterproof layer 5. The plastic film composite layer is made of polyethylene film, which can completely block moisture and is suitable for packaging that requires high waterproof performance. A specially treated waterproof base paper is used as the waterproof layer 6. This paper has a waterproofing agent added during the production process, which can effectively prevent moisture penetration. By fixing the plastic film as the waterproof layer 5 onto the surface cardboard 1 and fixing the waterproof base paper as the waterproof layer 6 onto the surface cardboard 2, the waterproof performance of the corrugated cardboard as a packaging box can be effectively improved, further reducing the impact of moisture.
[0038] Reference Figure 1 and Figure 2 The reinforcing layer 3 is a glass fiber reinforced plastic thin layer. Using this glass fiber reinforced plastic thin layer, a material with high strength and rigidity, it can be firmly bonded to the surface paperboard 1 and the stab-proof mesh 41 via adhesive. By fixing the reinforcing layer 3 onto the surface paperboard 1, the compressive and bending resistance of the paperboard can be further improved.
[0039] Working principle: A thin layer of glass fiber reinforced plastic is glued onto the surface cardboard 1 as a reinforcing layer 3. Then, an anti-stab mesh 41 is glued onto the reinforcing layer 3. A supporting layer 42 is glued onto the anti-stab mesh 41, aligning the honeycomb holes on the supporting layer 42 with the holes in the anti-stab mesh 41. Next, the anti-stab mesh 41 is glued onto the supporting layer 42. Polyurethane foam is added into the honeycomb holes of the supporting layer 42, forming a filling support block 43. Finally, a second surface cardboard 2 is glued onto the anti-stab mesh 41, forming a reinforcing core layer 4. Then, the second surface cardboard... A plastic film composite layer is covered on the top as a waterproof layer 5. Then, a waterproof base paper layer is glued and fixed on the surface cardboard 2 as a waterproof layer 6. Then, the cardboard is pressed together using a pressing device to form a corrugated cardboard. When the corrugated cardboard is under stress, the external force squeezes the surface cardboard 1, and the reinforcing layer 3 supports the surface cardboard 1. At the same time, the honeycomb support layer 42 supports the reinforcing layer 3. After the external force disappears, the support layer 42 is lifted up again under the action of the filling support layer 42. When the corrugated cardboard is punctured, the reinforcing layer 3 blocks the irritation, and the anti-stab mesh 41 blocks the irritation.
Claims
1. A corrugated cardboard with a reinforcing core, comprising a surface cardboard layer (1), characterized in that: A waterproof layer 1 (5) is fixed on one side of the first surface cardboard (1). A reinforcing layer (3) is fixed on the side of the first surface cardboard (1) away from the waterproof layer 1 (5). A second surface cardboard (2) is disposed on the reinforcing layer (3). A reinforcing core layer (4) is disposed between the reinforcing layer (3) and the second surface cardboard (2). A second waterproof layer (6) is disposed on the side of the second surface cardboard (2) away from the reinforcing core layer (4). The reinforcing core layer (4) includes a support layer (42) disposed between the reinforcing layer (3) and the second surface cardboard (2). Anti-stab mesh (41) is fixed on both sides of the support layer (42). The two anti-stab meshes (41) are fixedly connected to the reinforcing layer (3) and the second surface paperboard (2) respectively. The support layer (42) is provided with a number of filling support blocks (43). The support layer (42) is honeycomb-shaped and is made of high-density kraft paper. The filling support blocks (43) are located in the honeycomb holes of the support layer (42). Both ends of the filling support blocks (43) are fixedly connected to the reinforcing layer (3) and the second surface paperboard (2). The anti-stab mesh (41) is made of glass fiber mesh. The holes of the anti-stab mesh (41) correspond to the honeycomb holes of the support layer (42). The filling support blocks (43) are made of polyurethane foam blocks.
2. The corrugated cardboard with a reinforcing core according to claim 1, characterized in that: The waterproof layer (5) is a plastic film composite layer.
3. A corrugated cardboard with a reinforcing core according to claim 1, characterized in that: The second waterproof layer (6) is a waterproof base paper layer.
4. A corrugated cardboard with a reinforcing core according to claim 1, characterized in that: The reinforcing layer (3) is a thin layer of glass fiber reinforced plastic.