Corrugated board not prone to deformation

By setting anti-collision layers on corrugated cardboard, filling carbon fiber and elastic particles with staggered corrugated layers, and combining honeycomb airbags and waterproof layers, the deformation and waterproofing problems of corrugated cardboard during transportation are solved, improving its compression resistance and protective capabilities.

CN224106186UActive Publication Date: 2026-04-10QINGDAO LONGHUI PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO LONGHUI PACKAGING CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing corrugated cardboard is easily deformed by bumps during transportation, leading to damage to goods, and its waterproof and moisture-proof performance is insufficient.

Method used

The upper surface of the face paper layer is bonded with an anti-collision layer, which includes elastic support columns and upper blocks. The lower surface is bonded with staggered first and second corrugated layers and filled with carbon fiber strips and elastic particles. An additional honeycomb airbag layer and waterproof layer are added to enhance the pressure resistance and cushioning.

Benefits of technology

It effectively reduces the deformation of corrugated cardboard during transportation, improves its pressure resistance and water resistance, protects the contents from bumps and moisture, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of packaging, in particular to a corrugated board not prone to deformation, which comprises a surface paper layer, an anti-collision layer adheres to the upper surface of the surface paper layer, the anti-collision layer comprises an elastic supporting column and an upper clamping block, the surface of the upper clamping block is fixedly connected with a pressing column, one end of the pressing column is fixedly connected with a spring, and the other end of the pressing column is fixedly connected with a pressing plate. According to the anti-collision paperboard, external impact force is absorbed and dispersed through the anti-collision layer adhered to the upper surface of the surface paper layer, the anti-collision layer comprises the elastic supporting columns, the upper clamping blocks, the pressing columns, the springs and other structures, and damage to the paperboard caused by direct impact is effectively reduced; the first corrugated layer and the second corrugated layer which are adhered to the lower surface of the surface paper layer act together with the filled carbon fiber strips and the elastic particles through staggered valley and peak structures, so that the pressure resistance and the buffering performance of the paperboard are improved. In addition, the honeycomb air bag layer on the second corrugated layer further enhances the compression resistance and shock absorption effects.
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Description

TECHNICAL FIELD

[0001] The utility model relates to corrugated paperboard technical field especially to a corrugated paperboard not easy to deform. BACKGROUND

[0002] Corrugated paperboard, also known as corrugated paperboard, is formed by at least a first corrugated layer paper and a layer of boxboard paper (also known as box paperboard), has good elasticity and extensibility, and is mainly used for manufacturing paper boxes, the sandwich of paper boxes and other packaging materials of fragile goods. Announced number: CN219709946U a corrugated paperboard not easy to deform, in order to improve the functionality of corrugated paperboard, the waterproof layer plate, the fire -retardant layer plate and the antibacterial layer plate are bonded at the bottom of the receiving panel, improve the waterproof performance, the fire -retardant performance and the antibacterial performance of corrugated paperboard, but when using the corrugated paperboard in the packaging and transportation of some objects, it is unavoidable to be bumped to different degrees, due to the limited self anti -pressure and elasticity, leading to the deformation of corrugated paperboard, the damage of goods, for this, design a corrugated paperboard not easy to deform become the current urgent problem to be solved. SUMMARY

[0003] The utility model aims at solving the technical problem in the background art.

[0004] The utility model discloses a corrugated paperboard not easy to deform, including face paper layer, the upper surface of face paper layer is bonded with the anti -collision layer, the anti -collision layer includes elastic support column and upper clamping block, the surface fixedly connected with press column of upper clamping block, one end of press column is fixedly connected with spring, the other end of spring is fixedly connected with lower clamping block, the lower surface of face paper layer is bonded with first corrugated layer, first corrugated layer is bonded with reinforced core paper, the surface of reinforced core paper is bonded with second corrugated layer.

[0005] Better, the valley peak of first corrugated layer and second corrugated layer is staggered, and the space of first corrugated layer and second corrugated layer is filled with carbon fiber strip and elastic particle. Here, carbon fiber strip has very high strength and modulus, can bear greater pressure and stress, and good elastic recovery capacity can guarantee the shape stability of corrugated layer.

[0006] Better, the material of elastic particle is polystyrene (EPS). Here, polystyrene belongs to high molecular polymer, has the characteristics of light, round, good elasticity and not easy to deform, when corrugated paperboard is bumped or hit, elastic particle can unload force to a certain extent, share the pressure of first corrugated layer and second corrugated layer, further reduce the risk of deformation.

[0007] Preferably, the surface of the second corrugated layer is adhered with a honeycomb air bag layer.

[0008] Preferably, the surface of the honeycomb air bag layer is adhered with an inner waterproof layer, and the surface of the inner waterproof layer is adhered with a moisture-proof strip.

[0009] Preferably, the upper surface of the surface paper layer is adhered with a printing layer, and the surface of the printing layer is adhered with an outer waterproof layer.

[0010] Preferably, the material of the outer waterproof layer and the inner waterproof layer is polypropylene film.

[0011] Compared with the prior art, the utility model has the advantages and positive effects that:

[0012] 1、In the utility model, the anti-collision layer adhered to the upper surface of the surface paper layer contains elastic supporting columns and upper clamping blocks, and structures such as pressing columns and springs absorb and disperse external impact force, effectively reducing the damage of direct impact to the paperboard, and the first corrugated layer and the second corrugated layer adhered to the lower surface of the surface paper layer jointly act through staggered valley-peak structures and filled carbon fiber strips and elastic particles, thereby increasing the compressive resistance and buffering property of the paperboard.

[0013] 2、In the utility model, the external moisture is blocked by the outer waterproof layer and the inner waterproof layer, thereby ensuring the stability and durability of the paperboard in a humid environment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 A schematic view of the corrugated paperboard is provided for the utility model.

[0015] Fig. 2 A cross-sectional structure schematic view of the corrugated paperboard is provided for the utility model.

[0016] Fig. 3 The utility model provides a cross section structure schematic diagram of protection layer in corrugated board not easy to deform.

[0017] Legend:

[0018] 1, outer waterproof layer, 2, inner waterproof layer, 3, printing layer, 4, anti-collision layer, 41, elastic support column, 42, upper clamping block, 43, pressing column, 44, lower clamping block, 45, spring, 5, face paper layer, 6, first corrugated layer, 7, second corrugated layer, 8, carbon fiber strip, 9, elastic particle, 10, reinforced core paper, 11, moisture-proof strip, 12, honeycomb air bag layer. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in combination with the drawings and examples. It should be noted that the examples and features in the examples of the present application can be combined with each other without conflict.

[0020] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific examples disclosed in the following disclosure.

[0021] Please refer to Figs. 1-3The utility model provides a technical scheme: a corrugated paperboard not easy to deform, including face paper layer 5, the upper surface of face paper layer 5 is adhered with anticollision layer 4, anticollision layer 4 includes elastic support column 41 and upper clamping block 42, the surface fixedly connected with press column 43 of upper clamping block 42, one end fixedly connected with spring 45 of press column 43, the other end fixedly connected with lower clamping block 44 of spring 45, the lower surface of face paper layer 5 is adhered with first corrugated layer 6, first corrugated layer 6 is adhered with reinforced core paper 10, the surface of reinforced core paper 10 is adhered with second corrugated layer 7, and the valley peak of first corrugated layer 6 and second corrugated layer 7 is staggered, and the clearance of first corrugated layer 6 and second corrugated layer 7 is filled with carbon fibre strip 8 and elastic particle 9, carbon fibre strip 8 has very high strength and modulus, can bear greater pressure and stress, and good elastic recovery ability can guarantee that the shape of corrugated layer is stable, the material of elastic particle 9 is polystyrene (EPS), and polystyrene belongs to high molecular polymer, has the characteristics of light, round, good elasticity and not easy to deform, when corrugated paperboard is bumped or impacted, elastic particle 9 can unload force to the external force to some extent, share the pressure that first corrugated layer 6 and second corrugated layer 7 receive, further reduce the risk of deformation, the surface of second corrugated layer 7 is adhered with honeycomb air bag layer 12, and the unique structure of honeycomb air bag layer 12 can effectively disperse stress, improve the compression resistance and impact resistance of overall material, prevent corrugated paperboard from deforming to some extent, the surface of honeycomb air bag layer 12 is adhered with inner waterproof layer 2, the surface of inner waterproof layer 2 is adhered with moisture-proof strip 11, and corrugated board is easy to be damp when using, leading to the whole paperboard being damp and deformed, and moisture-proof strip 11 can meet the requirement of not deforming when corrugated board is in contact with humid environment for a short time to some extent.

[0022] Example two

[0023] Please refer to Fig. 3 The upper surface of face paper layer 5 is adhered with printing layer 3, the surface of printing layer 3 is adhered with outer waterproof layer 1, the waterproof layer can not only protect the paint of printing layer 3, but also prevent corrugated layer from being damp and deformed, and the material of outer waterproof layer 1 and inner waterproof layer 2 is polypropylene film, and polyethylene film can effectively prevent water and gas from permeating, protect corrugated board from humid environment, and polyethylene can also enhance the surface hardness of corrugated board, prevent abrasion, and has certain anticorrosive effect, prolong the service life of corrugated board.

[0024] Working principle: first, the upper surface of the paper layer 5 is adhered with the anti-collision layer 4, which includes elastic support column 41, upper clamping block 42 and pressing column 43 and other components, which realize the dispersion and absorption of impact force in combination with spring 45, further protect the internal structure of the paperboard, second, the bending valley peak of the first corrugated layer 6 and the second corrugated layer 7 is staggered, which is filled with carbon fiber strip 8 and polystyrene elastic particle 9, so as to provide additional support force and elastic buffer, third, the surface of the second corrugated layer 7 is adhered with the honeycomb air bag layer 12, the inner waterproof layer 2 and another layer of inner waterproof layer 2 and outer waterproof layer 1 on the outer surface of the two, which endows the paperboard with good compressive strength and waterproof performance. The whole working process is: when the goods are placed in the corrugated paperboard, if encountering external collision, the anti-collision layer 4 will first receive the impact force, which is dispersed and absorbed by the elastic support column 41 and pressing column 43 and spring 45 inside, at the same time, the honeycomb air bag layer 12 and carbon fiber strip 8 also provide additional support and buffer, and the elastic particle 9 can further fill the gap and enhance the structural stability, at the same time, the inner waterproof layer 2 and the outer waterproof layer 1 can effectively resist water permeation, ensure that the corrugated paperboard remains in a relatively dry environment, reduce the risk of deformation, and improve the protection performance of the corrugated paperboard in the packaging and transportation process.

[0025] The above is only the preferred embodiment of the present application, not other forms of the present application, any skilled in the art may use the above disclosed technical content to change or modify equivalent examples applied to other fields, but any simple modification, equivalent change and modification of the above examples according to the technical essence of the present application still belongs to the protection scope of the present application technical scheme.

Claims

1. A corrugated board which is not susceptible to deformation, comprising a face paper layer (5), characterized in that: The upper surface of the surface paper layer (5) is adhered with an anti-collision layer (4), the anti-collision layer (4) comprises elastic supporting columns (41) and upper clamping blocks (42), the surface of the upper clamping block (42) is fixedly connected with pressing columns (43), one end of the pressing column (43) is fixedly connected with springs (45), the other end of the spring (45) is fixedly connected with lower clamping blocks (44), the lower surface of the surface paper layer (5) is adhered with a first corrugated layer (6), the first corrugated layer (6) is adhered with a reinforcing core paper (10), the surface of the reinforcing core paper (10) is adhered with a second corrugated layer (7).

2. The non-deformable corrugated paperboard according to claim 1, characterized in that: The valley peaks of the first corrugated layer (6) and the second corrugated layer (7) are staggered, and the interspaces of the first corrugated layer (6) and the second corrugated layer (7) are filled with carbon fiber strips (8) and elastic particles (9).

3. The non-deformable corrugated paperboard according to claim 2, characterized in that: The material of the elastic particles (9) is polystyrene.

4. The non-deformable corrugated paperboard according to claim 1, characterized in that: The surface of the second corrugated layer (7) is adhered with a honeycomb air bag layer (12).

5. The non-deformable corrugated paperboard according to claim 4, characterized in that: The surface of the honeycomb air bag layer (12) is adhered with an inner waterproof layer (2), and the surface of the inner waterproof layer (2) is adhered with moisture-proof strips (11).

6. The non-deformable corrugated paperboard according to claim 5, characterized in that: The upper surface of the surface paper layer (5) is adhered with a printing layer (3), and the surface of the printing layer (3) is adhered with an outer waterproof layer (1).

7. The non-deformable corrugated paperboard according to claim 6, characterized in that: The materials of the outer waterproof layer (1) and the inner waterproof layer (2) are polypropylene films.

Citation Information

Patent Citations

  • Corrugated board not prone to deformation

    CN219709946U