Flame-retardant, deformation-resistant, high-cushion corrugated paperboard
By using a combination of ceramic fiber paperboard, fixing strips, V-shaped strips, and mica paper in corrugated cardboard, the problems of support strength and deformation resistance of corrugated cardboard are solved, achieving multi-directional support and high cushioning flame retardant and deformation resistance.
Patent Information
- Application Number
- CN202522204182.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-18
AI Technical Summary
The use of glass fiber in the support components of existing corrugated cardboard affects the support strength, resulting in poor unidirectional support, failing to achieve good anti-deformation and cushioning effects, and being easily deformed by external pressure and difficult to recover.
It uses a combination of ceramic fiber paperboard and fixing strips, with rock wool strips filling the inside. Through the vertical distribution of V-shaped strips and corrugated paperboard and the setting of support strips, multi-directional support and high cushioning effect are achieved. The exterior uses mica paper and flame-retardant paperboard to ensure flame retardancy.
It achieves multi-directional anti-deformation and high cushioning performance of corrugated cardboard, ensures flame retardancy and structural strength, avoids deformation and fire, and improves toughness and cushioning effect.
Smart Images

Figure CN224678435U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corrugated cardboard technology, and relates to a flame-retardant and deformation-resistant corrugated cardboard, particularly a flame-retardant and deformation-resistant high-cushioning corrugated cardboard. Background Technology
[0002] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and the cardboard, and the structure of the carton itself. Corrugated cardboard has advantages such as light weight, high strength, and convenient storage and handling, and is widely used in the packaging industry.
[0003] A search revealed a fire-retardant corrugated cardboard disclosed in Chinese patent literature [Application No.: CN202122624353.7; Publication No.: CN216659211U]. This corrugated cardboard includes a first cardboard, a second cardboard, and corrugated paper. The first cardboard and the second cardboard are fixedly disposed on both sides of the corrugated paper. Both the first cardboard and the second cardboard are composed of an outer cardboard and a fire-retardant core. The outer cardboard is fixedly disposed on both the upper and lower ends of the fire-retardant core. The fire-retardant core is made of Class A fire-retardant cloth. A support member is fixedly disposed between the corrugated paper and the first and second cardboards. The support member is composed of a fixed plate and a support plate. The support plate is fixedly disposed on the upper and lower sides of the fixed plate, and the support plate located on the same side of the fixed plate is connected to it.
[0004] Although the corrugated cardboard disclosed in this patent achieves support and flame retardancy through the support members and glass fibers, the glass fibers inside the support members affect the support strength. Furthermore, the unidirectional support cannot achieve good anti-deformation and cushioning effects for the corrugated cardboard, making it susceptible to deformation under external pressure and difficult to recover. Utility Model Content
[0005] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a flame-retardant and deformation-resistant high-cushioning corrugated cardboard. The technical problem to be solved by this utility model is: how to achieve multi-directional and comprehensive deformation resistance and high cushioning effect of corrugated cardboard while ensuring its flame retardancy.
[0006] The objective of this utility model can be achieved through the following technical solutions: A flame-retardant and deformation-resistant high-cushioning corrugated cardboard includes ceramic fiber cardboard. Multiple fixing strips are fixedly connected to the surface of the ceramic fiber cardboard, and each fixing strip is fixedly filled with rock wool strips. V-shaped strips are fixedly connected to the surface of the ceramic fiber cardboard away from the fixing strips, and each V-shaped strip is connected and overlapped. Support strips are embedded and connected to the surface of the V-shaped strips, and flame-retardant cardboard is fixedly connected to the surface of the support strips. A corrugated cardboard is fixedly connected between the two fixing strips, and mica paper is fixedly connected to the outer wall of the corrugated cardboard.
[0007] By employing the above structure, the application of mica paper and flame-retardant cardboard on both sides of the corrugated cardboard ensures its flame-retardant and fire-resistant properties, preventing it from igniting when heated. This achieves surface flame retardancy. Furthermore, the V-shaped strips and corrugated cardboard, acting perpendicularly, provide bidirectional support within the cardboard, ensuring its internal deformation resistance. The V-shaped strips and support strips create a hollow V-shaped structure at the bottom, providing excellent cushioning and facilitating deformation recovery, thus maintaining the cardboard's toughness. Additionally, the ceramic fiber cardboard and fixing strips in the center increase the structural strength of the cardboard's central area while maintaining its flame-retardant and fire-resistant properties. Finally, the rock wool strips filling the fixing strips provide both flame retardancy and cushioning in the center, achieving three layers of flame retardancy and ensuring multi-directional deformation resistance and high cushioning performance.
[0008] The V-shaped strip has an asymmetrical "V" shape structure, and the V-shaped strip 4 has mounting ears formed by integral bending on both sides. Multiple V-shaped strips are installed by overlapping each other through the mounting ears on both sides. The "V" angle of the V-shaped strip is 70°.
[0009] By adopting the above structure and setting the angle of the V-strips, the overlapping installation of multiple V-strips enables the V-strips to achieve good anti-deformation effect on the surface of the ceramic fiber paperboard. In addition, the mounting ears on both sides ensure the connection stability between each V-strip. Furthermore, the structure is simple and the production cost is low.
[0010] The support bar is fixedly connected between two adjacent V-shaped bars, and multiple support bars are equidistantly arranged; The support strip is integrally bent into an inverted triangular structure from cardboard, and the top of the support strip is on the same horizontal plane as the top of the V-shaped strip.
[0011] By adopting the above structure and setting a support strip between two adjacent V-shaped strips, the support strip fills and supports the top of the V-shaped strip, ensuring the support effect of the support strip and realizing the overall reinforcement and cushioning effect of the V-shaped strip structure. Moreover, by setting multiple adjacent V-shaped strips, production costs are reduced, production is convenient, and the high cushioning effect of corrugated cardboard is guaranteed. Furthermore, by bending the support strip into one piece, the processing and production of the support strip are facilitated, greatly reducing the production cost of the support strip and making it easy to install the support strip and V-shaped strip stably.
[0012] The V-shaped strips are perpendicular to the corrugated cardboard, and each group of corrugated cardboard and the fixed strips are staggered.
[0013] By adopting the above structure, with the V-shaped strips perpendicular to the corrugated cardboard, the corrugated cardboard has a two-way vertical support and cushioning effect, ensuring the comprehensive cushioning of the corrugated cardboard. Moreover, under the interlacing action of the corrugated cardboard and the fixing strips, the structure is compact and makes reasonable use of the internal space of the corrugated cardboard, avoiding the problem of excessive thickness of the corrugated cardboard structure reinforcement, and achieving high-quality flame retardant and deformation-resistant effects.
[0014] The fixing strip is a hollow rectangular structure and is integrally formed on the surface of the ceramic fiber paperboard.
[0015] With the above structure, ceramic fiber paperboard has a good flame retardant effect. Moreover, by integrally molding the ceramic fiber paperboard with the fixing strip, the structural strength and flame retardant effect of the corrugated paperboard surface are guaranteed, and the high temperature resistance and heat insulation quality of the paperboard surface are achieved. At the same time, by fixing and connecting rock wool strips inside the fixing strip, the structural strength and flame retardant effect of the paperboard in the middle of the corrugated paperboard are guaranteed, and the cushioning effect of the corrugated paperboard is achieved, effectively ensuring the deformation resistance of the corrugated paperboard.
[0016] Compared with existing technologies, the flame-retardant and deformation-resistant high-cushioning corrugated cardboard of this invention has the following advantages: In this invention, the presence of mica paper and flame-retardant cardboard on both sides of the corrugated cardboard achieves flame-retardant and fire-resistant effects on both surface layers, preventing the cardboard from igniting when heated. Furthermore, the addition of ceramic fiber cardboard and fixing strips in the middle of the cardboard increases its structural strength, achieving three layers of flame retardancy and ensuring overall flame-retardant and fire-resistant performance. The vertical distribution of corrugated cardboard and V-shaped strips provides bidirectional support within the cardboard, ensuring multi-directional anti-deformation properties. The V-shaped strips and support strips also provide high cushioning, facilitating deformation recovery and maintaining the cardboard's toughness. This results in flame-retardant, anti-deformation, and high cushioning performance for the corrugated cardboard. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a flame-retardant and deformation-resistant high-buffered corrugated cardboard according to this utility model.
[0018] Figure 2 This utility model Figure 1 A magnified structural diagram at point A.
[0019] Figure 3 This is a cross-sectional structural diagram of the flame-retardant and deformation-resistant high-buffered corrugated cardboard of this utility model.
[0020] Figure 4 This utility model Figure 3 A magnified structural diagram at point B.
[0021] Figure 5 This is an exploded structural diagram of the flame-retardant and deformation-resistant high-buffered corrugated cardboard of this utility model.
[0022] Figure 6 This is a schematic diagram of the connection structure between the support strip and the V-shaped strip in this utility model.
[0023] In the picture: 1. Ceramic fiber paperboard; 2. Fixing strip; 3. Rock wool strip; 4. V-shaped strip; 5. Supporting strip; 6. Flame retardant paperboard; 7. Corrugated paperboard; 8. Mica paper. Detailed Implementation
[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example
[0025] like Figures 1-6 As shown; A flame-retardant and deformation-resistant high-cushioning corrugated cardboard includes ceramic fiber cardboard 1, fixing strips 2, rock wool strips 3, V-shaped strips 4, support strips 5, flame-retardant cardboard 6, corrugated cardboard 7, and mica paper 8. Multiple fixing strips 2 are fixedly connected to the surface of the ceramic fiber cardboard 1. The fixing strips 2 are hollow rectangular structures and are integrally formed on the surface of the ceramic fiber cardboard 1. The ceramic fiber cardboard 1 has good flame-retardant properties. Furthermore, by integrally forming the ceramic fiber cardboard 1 with the fixing strips 2, the structural strength and flame-retardant effect of the corrugated cardboard surface are ensured, achieving high-temperature resistance and heat insulation quality of the corrugated cardboard surface. Each fixing strip 2 is filled with rock wool strips 3. By fixing the rock wool strips 3 inside the fixing strip 2, the structural strength and flame retardant effect of the corrugated cardboard are guaranteed in the middle of the cardboard, and the cushioning effect of the corrugated cardboard is achieved, effectively ensuring the deformation resistance of the corrugated cardboard. V-shaped strips 4 are fixedly connected to the surface of the ceramic fiber cardboard 1 away from the fixing strip 2, and each V-shaped strip 4 is connected and overlapped. Support strips 5 are embedded and connected to the surface of the V-shaped strips 4, and flame retardant cardboard 6 is fixedly connected to the surface of the support strips 5. Specifically, the flame retardant cardboard 6 is asbestos fiber fireproof paper, which has good heat insulation and fireproof effect. Corrugated cardboard 7 is fixedly connected between two fixing strips 2, and mica paper 8 is fixedly connected to the outer wall of the corrugated cardboard 7. The mica paper 8 has good flame retardant and fire-resistant properties, which can greatly improve the fire resistance of the corrugated cardboard surface and ensure the flame retardant effect of the corrugated cardboard. The V-shaped strips 4 are perpendicularly distributed with the corrugated cardboard 7, and each group of corrugated cardboard 7 is staggered with the fixing strips 2. The vertical arrangement of the V-shaped strips 4 and the corrugated cardboard 7 gives the corrugated cardboard a two-way vertical support and cushioning effect, ensuring the comprehensive cushioning of the corrugated cardboard. Moreover, under the staggered action of the corrugated cardboard 7 and the fixing strips 2, the structure is compact and makes reasonable use of the internal space of the corrugated cardboard, avoiding the problem of excessive thickness of the corrugated cardboard structure reinforcement, and achieving a high-quality flame retardant and deformation-resistant effect.
[0026] Furthermore, the V-shaped strip 4 has an asymmetrical "V" shape with a "V" angle of 70°. Mounting ears are integrally bent on both sides of the V-shaped strip 4. Multiple V-shaped strips 4 are interconnected via these mounting ears. The angle of the V-shaped strips 4, combined with the overlapping installation, ensures good anti-deformation properties on the surface of the ceramic fiber paperboard 1. The mounting ears on both sides also guarantee the connection stability between each V-shaped strip 4. The structure is simple and production costs are low. Support strips 5 are fixedly connected between adjacent V-shaped strips 4, and multiple support strips 5 are equidistantly spaced. The support strips 5 are integrally bent from the paperboard. The support strip 5 is bent into an inverted triangular structure, and the top of the support strip 5 is on the same horizontal plane as the top of the V-shaped strip 4. By setting the support strip 5 between two adjacent V-shaped strips 4, the support strip 5 fills and supports the top of the V-shaped strip 4, ensuring the support effect of the support strip 5 and realizing the overall reinforcement and cushioning effect of the V-shaped strip 4 structure. Moreover, by setting multiple adjacent V-shaped strips 4, the production cost is reduced, production is convenient, and the high cushioning effect of the corrugated cardboard is guaranteed. Furthermore, by bending the support strip 5 into one piece, the processing and production of the support strip 5 are facilitated, greatly reducing the production cost of the support strip 5 and making it easy to install the support strip 5 and V-shaped strip 4 stably.
[0027] The working principle of this utility model is as follows: During operation, by setting mica paper 8 and flame-retardant cardboard 6 on both sides of the corrugated cardboard, the flame-retardant and fire-resistant effect of both sides of the corrugated cardboard is ensured, preventing the corrugated cardboard from igniting when heated, thus achieving surface flame retardancy. Furthermore, through the arrangement of V-shaped strips 4 and corrugated cardboard 7, the internal structure of the corrugated cardboard is bidirectionally supported under the perpendicular action of the corrugated cardboard 7 and V-shaped strips 4, ensuring the internal deformation resistance of the corrugated cardboard. Moreover, through the arrangement of V-shaped strips 4 and support strips 5, the bottom of the V-shaped strips 4 forms a V-shaped hollow structure, achieving internal flame retardancy of the corrugated cardboard. The high cushioning effect facilitates the deformation and recovery of the corrugated cardboard, ensuring its toughness. At the same time, by setting ceramic fiber cardboard 1 and fixing strip 2 in the middle of the corrugated cardboard, the structural strength of the middle part of the corrugated cardboard is increased, and the flame-retardant and fire-resistant properties of the corrugated cardboard are guaranteed inside. Furthermore, by filling the inside of the fixing strip 2 with rock wool strip 3, the rock wool strip 3 can achieve a cushioning effect while providing flame retardancy and fire resistance in the middle of the corrugated cardboard. This achieves three-layer flame retardancy of the corrugated cardboard and ensures multi-directional anti-deformation and high cushioning performance. This completes the working principle of the flame-retardant and anti-deformation high-cushioning corrugated cardboard.
[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A flame-retardant and deformation-resistant high-cushioning corrugated cardboard, comprising ceramic fiber cardboard (1), characterized in that: The surface of the ceramic fiber paperboard (1) is fixedly connected with multiple fixing strips (2), and each fixing strip (2) is fixedly filled with rock wool strips (3). The surface of the ceramic fiber paperboard (1) away from the fixing strips (2) is fixedly connected with V-shaped strips (4), and each V-shaped strip (4) is connected and overlapped. The surface of the V-shaped strips (4) is fitted with support strips (5), and the surface of the support strips (5) is fixedly connected with flame-retardant paperboard (6). Corrugated cardboard (7) is fixedly connected between the two fixing strips (2), and mica paper (8) is fixedly connected to the outer wall of the corrugated cardboard (7).
2. The flame-retardant and deformation-resistant high-cushioning corrugated cardboard according to claim 1, characterized in that: The V-shaped strip (4) has an asymmetrical "V" shape structure, and the V-shaped strip (4) has an integrally bent mounting ear on both sides. Multiple V-shaped strips (4) are connected and installed by overlapping the mounting ears on both sides. The "V" angle of the V-shaped strip (4) is 70°.
3. The flame-retardant and deformation-resistant high-cushioning corrugated cardboard according to claim 1, characterized in that: The support bar (5) is fixedly connected between two adjacent V-shaped bars (4), and multiple support bars (5) are equidistantly arranged; The support strip (5) is integrally bent into an inverted triangle structure by the cardboard, and the top of the support strip (5) and the top of the V-shaped strip (4) are on the same horizontal plane.
4. The flame-retardant and deformation-resistant high-cushioning corrugated cardboard according to claim 3, characterized in that: The V-shaped strips (4) are perpendicular to the corrugated cardboard (7), and each set of corrugated cardboard (7) is staggered with the fixed strips (2).
5. The flame-retardant and deformation-resistant high-cushioning corrugated cardboard according to claim 4, characterized in that: The fixing strip (2) is a hollow rectangular structure and is integrally formed on the surface of the ceramic fiber paperboard (1).
Citation Information
Patent Citations
Fireproof flame-retardant corrugated board
CN216659211U