Corrugated board

Abstract

The utility model discloses a corrugated board which comprises bottom paper and surface paper, a layer of corrugated paper is arranged between the surface paper and the bottom paper, grooves in the corrugated paper are arranged in a front-and-back extending mode, a plurality of bonding areas connected with the corrugated paper and a plurality of non-bonding areas not connected with the corrugated paper are arranged on the surface paper, the non-bonding areas and the bonding areas are arranged alternately, and the non-bonding areas are arranged between the surface paper and the bottom paper. A first kerf extending from top to bottom and a second kerf extending from bottom to top are arranged in the non-bonding area, the upper end of the first kerf is connected with the outside, the lower end of the second kerf is connected with the outside, and the first kerf and the second kerf are both formed in the surface paper. According to the corrugated board, the kerfs for deformation are formed in the non-bonding area of the surface paper, so that when the corrugated board is bent inwards, the surface paper can properly extend towards the two sides of the length direction, the corrugated board can be conveniently curled and bent freely, and the corrugated board is complete in overall function and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of paper product processing technology, and more specifically, to a corrugated cardboard. Background Technology

[0002] Three-layer corrugated cardboard typically consists of a top linerboard, a bottom linerboard, and corrugated sheets sandwiched in the middle. Because neither the linerboard nor the bottom linerboard has lateral stretching capability, the linerboard is easily restricted in bending or damaged when the corrugated cardboard is bent inwards, resulting in poor overall performance. Therefore, this utility model proposes a corrugated cardboard. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a corrugated cardboard.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The corrugated cardboard of this utility model includes a base paper and a face paper. A layer of corrugated paper is provided between the face paper and the base paper. The grooves on the corrugated paper are arranged to extend back and forth. The face paper has a plurality of adhesive areas connected to the corrugated paper and a plurality of non-adhesive areas not connected to the corrugated paper. The non-adhesive areas and the adhesive areas are arranged alternately. A first slit extending from top to bottom and a second slit extending from bottom to top are provided in the non-adhesive areas. The upper end of the first slit is connected to the outside, and the lower end of the second slit is connected to the outside. Both the first slit and the second slit are formed on the face paper.

[0005] The present invention is further configured such that: the length of the first slit is greater than half the width of the face paper; and the length of the second slit is greater than half the width of the face paper.

[0006] The present invention is further configured such that the length of the first cut is equal to the length of the second cut.

[0007] In summary, the present invention has the following beneficial effects: The corrugated cardboard involved in the present invention has deformable slits opened in the non-adhesive area of ​​the face paper, so that when the corrugated cardboard is bent inward, the face paper can be appropriately extended to both sides in the length direction, so as to facilitate the curling and bending of the corrugated cardboard. The overall function is perfect and the practicality is strong. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0009] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0010] Figure 3 yes Figure 2 Enlarged structural diagram of section A in the middle. Detailed Implementation

[0011] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0012] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0013] Example 1

[0014] See Figures 1 to 3 As shown, the corrugated cardboard involved in this embodiment includes a base paper 100 and a face paper 200. A layer of corrugated paper 300 is provided between the face paper 200 and the base paper 100. The grooves on the corrugated paper 300 are arranged to extend back and forth. The face paper 200 is provided with a plurality of adhesive areas 201 connected to the corrugated paper and a plurality of non-adhesive areas 202 not connected to the corrugated paper. The non-adhesive areas 202 and the adhesive areas 201 are arranged alternately. The non-adhesive areas 202 are provided with a first slit 2021 extending from top to bottom and a second slit 2022 extending from bottom to top. The upper end of the first slit 2021 is connected to the outside, and the lower end of the second slit 2022 is connected to the outside. Both the first slit 2021 and the second slit 2022 are formed on the face paper 200.

[0015] Furthermore, the length of the first slit 2021 is greater than half the width of the face paper; the length of the second slit 2022 is greater than half the width of the face paper.

[0016] Furthermore, the length of the first slit 2021 is equal to the length of the second slit 2022.

[0017] In this embodiment, when the corrugated cardboard bends inward, the middle of the bottom paper 100 bulges upward, and the corrugated paper 300 deforms accordingly. The force is transmitted to the face paper 200, and the middle of the face paper 200 is pulled outward in the length direction. The gap between the first cut 2021 and the second cut 2022 increases, thereby compensating for the deformation and increasing the bending range of the corrugated cardboard.

[0018] The corrugated cardboard involved in this utility model has a deformable slit made in the non-adhesive area of ​​the face paper, so that when the corrugated cardboard is bent inward, the face paper can be extended appropriately in both sides of the length direction, so as to facilitate the curling and bending of the corrugated cardboard. It has perfect overall function and strong practicality.

[0019] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0020] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A corrugated cardboard, comprising a base liner and a face liner, wherein a layer of corrugated paper is disposed between the face liner and the base liner, and the grooves on the corrugated paper are arranged to extend back and forth, characterized in that: The face paper has several adhesive areas connected to the corrugated paper and several non-adhesive areas not connected to the corrugated paper. The non-adhesive areas and the adhesive areas are arranged alternately. Each non-adhesive area has a first slit extending from top to bottom and a second slit extending from bottom to top. The upper end of the first slit is connected to the outside, and the lower end of the second slit is connected to the outside. Both the first slit and the second slit are made on the face paper.

2. The corrugated cardboard according to claim 1, characterized in that: The length of the first slit is greater than half the width of the face paper; the length of the second slit is greater than half the width of the face paper.

3. The corrugated cardboard according to claim 2, characterized in that: The length of the first cut is equal to the length of the second cut.

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