Corrugated board and corrugated carton

By designing spaced core strips and peak wave structures in corrugated cardboard, the problem of insufficient core board support strength is solved, achieving a more stable support effect.

CN223620723UActive Publication Date: 2025-12-02DONGGUAN HONGYUN PACKAGING & PRINTING CO LTD
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Patent Information

Application Number
CN202423319266.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-02
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The core board of traditional corrugated cardboard does not provide sufficient support for the face panel at the troughs, resulting in poor support performance.

Method used

The core strips are spaced apart, forming an adhesive space between adjacent core strips. The peaks are placed in the adhesive space of another set of cardboard groups and connected to the panel and the peaks through the adhesive joint to form a stable support structure.

Benefits of technology

It improves the support strength and stability of corrugated cardboard, and enhances the support effect on the panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of corrugated paper, in particular to a corrugated board and a corrugated carton, the corrugated board comprises two cardboard groups which are bonded with each other, each cardboard group comprises a plurality of core strips and panels, the plurality of core strips are arranged at intervals along a first direction, bonding spaces are formed between the adjacent core strips, and the panels are arranged at intervals along the first direction. Each core strip is composed of a plurality of peak waves continuously arranged in the second direction, each peak wave is provided with a bonding position, an avoiding opening is formed between every two adjacent peak waves, and the panel is bonded with the face, away from the peak waves, of each core strip. According to the corrugated board disclosed by the utility model, the core strips which are arranged at intervals in the first direction are adopted, the bonding spaces are formed between the adjacent core strips, and the peak waves of one paperboard group are arranged in the bonding spaces of the other paperboard group, so that the two paperboard groups can complement the insufficient support of the opposite paperboard group on a panel in the bonding spaces; therefore, stable support is effectively provided for the other panel, and the purpose of improving the supporting effect of the corrugated board is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated paper, and in particular to a corrugated cardboard and a corrugated carton. Background Technology

[0002] Corrugated cardboard is a type of cardboard made by bonding at least one layer of corrugated paper with one layer of linerboard. Because of its excellent elasticity and extensibility, corrugated cardboard is widely used in the manufacture of cartons and carton cores. In traditional technology, the core of corrugated cardboard is usually sinusoidal to give it a certain degree of elasticity and extensibility. However, the sinusoidal core provides insufficient support to the face at the troughs, making it difficult to provide stable and continuous support to the face, resulting in the technical problem of poor support effect of corrugated cardboard. Utility Model Content

[0003] Therefore, it is necessary to provide a corrugated cardboard to address the technical problem of insufficient support strength of corrugated cardboard.

[0004] A corrugated cardboard includes: two cardboard groups bonded together, each cardboard group including a core strip and a faceplate, the core strips being multiple strips spaced apart along a first direction, with an adhesive space formed between adjacent core strips, each core strip consisting of multiple wave peaks arranged continuously along a second direction, each wave peak having an adhesive joint, and an avoidance opening formed between adjacent wave peaks, the faceplate being bonded to the side of each core strip opposite to the wave peaks, wherein the wave peaks of one cardboard group are disposed within the adhesive space of the other cardboard group, and the adhesive joints of the wave peaks are bonded to the faceplate of the other cardboard group, the avoidance openings of the core strips of the two cardboard groups being positioned correspondingly.

[0005] In one embodiment, the peak includes a top and feet, the top having the adhesive portion, and two feet respectively connected to the two ends of the top and adhered to the panel.

[0006] In one embodiment, the top is semi-circular and the feet are arc-shaped.

[0007] In one embodiment, the peak wave is arranged in a triangular shape.

[0008] In one embodiment, the panel includes a surface layer and a spacer layer, the surface layer being bonded to the spacer layer and the spacer layer being bonded to the core strip.

[0009] In one embodiment, the partition is either a heat insulation layer or a waterproof layer.

[0010] In one embodiment, the panel further includes a buffer layer disposed between the surface layer and the partition layer.

[0011] A corrugated cardboard box comprising the corrugated cardboard described in any one of the above-mentioned claims.

[0012] The beneficial effects of the corrugated cardboard provided in this application are as follows: the core strips are spaced apart in the first direction, and an adhesive space is formed between adjacent core strips. The peak of one group of cardboard is set in the adhesive space of another group of cardboard, which helps the two cardboard groups to complement each other and make up for the lack of support of the other cardboard group for the panel in the adhesive space, thereby effectively providing stable support for the other panel and achieving the purpose of improving the support effect of the corrugated cardboard. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of corrugated cardboard according to one embodiment of the present invention;

[0014] Figure 2 for Figure 1 The diagram shows the structure of a corrugated cardboard.

[0015] The meanings of the numbers in the attached diagram are as follows:

[0016] 100. Corrugated cardboard; 10. Cardboard assembly; 11. Core strip; 111. Gluing space; 112. Peak; 113. Gluing point; 114. Clearance opening; 115. Top; 116. Foot; 12. Panel; 121. Surface layer; 122. Partition; 123. Buffer layer. Detailed Implementation

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] like Figure 1 As shown, it is the corrugated cardboard 100 of this utility model.

[0024] like Figure 1 As shown, the corrugated cardboard 100 includes: two mutually bonded cardboard sets 10, wherein, as Figure 2 As shown, each of the cardboard groups 10 includes a core strip 11 and a panel 12. There are multiple core strips 11, spaced apart along a first direction F1, with adhesive spaces 111 formed between adjacent core strips 11. Each core strip 11 is composed of multiple wave peaks 112 continuously arranged along a second direction F2. Each wave peak 112 has an adhesive portion 113, and clearance openings 114 are formed between adjacent wave peaks 112. The panel 12 is bonded to the side of each core strip 11 facing away from the wave peaks 112. Figure 1 As shown, the peak 112 of one set of cardboard group 10 is disposed in the adhesive space 111 of another set of cardboard group 10, and the adhesive part 113 of the peak 112 is bonded to the panel 12 of the other set of cardboard group 10. The positions of the clearance openings 114 of the core strips 11 of the two cardboard groups 10 are correspondingly arranged.

[0025] like Figure 2 As shown, the peak wave 112 includes a top 115 and feet 116. The top 115 has the adhesive part 113. There are two feet 116. The two feet 116 are respectively connected to the two ends of the top 115 and are bonded to the panel 12. The top 115 is semi-circular and the feet 116 are arc-shaped.

[0026] In another embodiment, the peak wave 112 is arranged in a triangular shape.

[0027] like Figure 2 As shown, the panel 12 includes a surface layer 121 and a partition layer 122. The surface layer 121 is bonded to the partition layer 122, and the partition layer 122 is bonded to the core strip 11. The partition layer 122 is either a heat insulation layer or a waterproof layer. Furthermore, the panel 12 also includes a buffer layer 123, which is disposed between the surface layer 121 and the partition layer 122.

[0028] When the corrugated cardboard 100 provided in this application is used, the two cardboard groups 10 complement each other to make up for the lack of support of the other cardboard group 10 for the panel 12 in the adhesive space 111, thereby effectively providing stable support for the other panel 12 and achieving the purpose of improving the support effect of the corrugated cardboard 100.

[0029] A corrugated cardboard box comprising the corrugated cardboard 100 described in any one of the above-mentioned claims.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A corrugated cardboard, characterized in that, include: Two cardboard sets are bonded together. Each cardboard set includes a core strip and a panel. There are multiple core strips, which are spaced apart along a first direction. Adhesive spaces are formed between adjacent core strips. Each core strip is composed of multiple peaks arranged continuously along a second direction. Each peak has an adhesive joint, and clearance openings are formed between adjacent peaks. The panel is bonded to the side of each core strip that is away from the peaks. The peaks of one cardboard set are located within the adhesive space of the other cardboard set, and the adhesive joints of the peaks are bonded to the panel of the other cardboard set. The clearance openings of the core strips in the two cardboard sets are positioned correspondingly.

2. The corrugated cardboard according to claim 1, characterized in that, The peak wave includes a top and feet. The top has the adhesive part, and there are two feet. The two feet are respectively connected to the two ends of the top and are adhered to the panel.

3. The corrugated cardboard according to claim 2, characterized in that, The top is semi-circular, and the feet are arc-shaped.

4. The corrugated cardboard according to claim 1, characterized in that, The peak wave is arranged in a triangular shape.

5. The corrugated cardboard according to claim 1, characterized in that, The panel includes a surface layer and a partition layer, the surface layer and the partition layer are bonded together, and the partition layer and the core strip are bonded together.

6. The corrugated cardboard according to claim 5, characterized in that, The partition is either a heat insulation layer or a waterproof layer.

7. The corrugated cardboard according to claim 5, characterized in that, The panel also includes a buffer layer disposed between the surface layer and the partition layer.

8. A corrugated cardboard box, characterized in that, The corrugated cardboard includes any one of claims 1 to 7.