Moisture-proof and breakage-resistant paperboard

Abstract

An upper hydrophobic coating is arranged on the upper side of an upper grey paperboard, a first supporting layer is arranged below the upper grey paperboard, a second supporting layer is arranged below the first supporting layer, a lower grey paperboard is arranged below the second supporting layer, a lower hydrophobic coating is arranged on the lower side face of the lower grey paperboard, and the lower hydrophobic coating is arranged on the lower side face of the lower grey paperboard. According to the damp-proof and breakage-resistant paperboard, the conditions that in the actual use process in the prior art, enough thickness is needed to ensure enough strength when the paperboard is used for an outer package and other scenes with high strength requirements, the weight is increased due to the fact that the paperboard is too thick, and the logistics cost is not favorably reduced are improved; the strength of the grey board can be effectively improved by adding the supporting layer made of the bamboo fiber material and used for improving the strength into the grey board, meanwhile, the bamboo fiber is adopted as a reinforcing structure in the scheme, and after being abandoned, the bamboo fiber has good degradability and does not cause pollution to the environment.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled paper, in particular to a moisture-proof and tear-resistant grey board paper. Background Art

[0002] Gray cardboard is made from recycled waste paper. The product is divided into single gray, double gray, and full gray, and is an environmentally friendly packaging material. The main uses of the product: packaging boxes, advertising boards, folders, photo frame backboards, bags, hardcover books, storage boxes, samples, lining boards, partitions, etc.

[0003] Currently, Chinese Patent No.: CN202122112638.2 discloses a gray board paper core structure, including a surface layer, a kraft paper is provided at the bottom of the surface layer, a core layer is provided at the bottom of the kraft paper, a bottom layer is provided at the bottom of the core layer, the surface layer weighs 200 grams, the kraft paper weighs 100 grams, the core layer weighs 500 grams, and the bottom layer weighs 200 grams; the paper core structure of the utility model has high strength, good waterproof and moisture-proof properties, and will not cause concave deformation. A layer of kraft paper is added to the paper core structure, and the stiffness of the entire gray board paper is enhanced. However, in actual use, the prior art still has the problem that sufficient thickness is required to ensure sufficient strength when used in scenarios with high strength requirements such as outer packaging. Too thick will increase the weight, which is not conducive to reducing logistics costs. Utility Model Content

[0004] Therefore, in response to the above-mentioned problems, the utility model proposes a moisture-proof and tear-resistant gray board paper, which solves the technical problem that the prior art still has the problem of requiring sufficient thickness to ensure sufficient strength when used in scenarios with high strength requirements such as outer packaging during actual use, and too thick paper will increase the weight, which is not conducive to reducing logistics costs.

[0005] To achieve the above-mentioned objectives, the utility model adopts the following technical scheme: a moisture-proof and tear-resistant gray board paper, whose structure includes an upper hydrophobic coating, an upper gray board paper, a first supporting layer, a second supporting layer, a lower gray board paper, and a lower hydrophobic coating. The upper hydrophobic coating is arranged on the upper side of the upper gray board paper, the first supporting layer is arranged below the upper gray board paper, the second supporting layer is arranged below the first supporting layer, the lower gray board paper is arranged below the second supporting layer, and the lower side of the lower gray board paper is arranged with a lower hydrophobic coating. The upper gray board paper, the first supporting layer, the second supporting layer, and the lower gray board paper are bonded in sequence from top to bottom.

[0006] Furthermore, the first supporting layer and the second supporting layer are made of bamboo fiber.

[0007] Furthermore, the first supporting layer and the second supporting layer adopt a structure in which the fiber directions are perpendicular.

[0008] Furthermore, the upper grey board paper has a grammage of 50-100 grams.

[0009] Furthermore, the first supporting layer and the second supporting layer have a gram weight of 100-250 grams.

[0010] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is: the moisture-proof and tear-resistant gray board paper improves the existing technology. In actual use, it still needs sufficient thickness to ensure sufficient strength when used in scenarios with high strength requirements such as outer packaging. Too thick will increase the weight, which is not conducive to reducing logistics costs. By adding a supporting layer of bamboo fiber material for increasing strength inside the gray board paper, the strength of the gray board paper can be effectively improved. At the same time, bamboo fiber is used as a reinforcing structure in this scheme. After abandonment, the bamboo fiber has good degradability and will not cause pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] In the figure: 1, upper hydrophobic coating; 2, upper grey board paper; 3, first supporting layer; 4, second supporting layer; 5, lower grey board paper; 6, lower hydrophobic coating. DETAILED DESCRIPTION

[0013] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0014] refer to Figure 1 The present embodiment provides a moisture-proof and tear-resistant grey board paper, whose structure includes an upper hydrophobic coating 1, an upper grey board paper 2, a first supporting layer 3, a second supporting layer 4, a lower grey board paper 5, and a lower hydrophobic coating 6. The upper hydrophobic coating 1 is arranged on the upper side of the upper grey board paper 2, the first supporting layer 3 is arranged below the upper grey board paper 2, the second supporting layer 4 is arranged below the first supporting layer 3, the lower grey board paper 5 is arranged below the second supporting layer 4, and the lower side of the lower grey board paper 5 is arranged with a lower hydrophobic coating 6. The upper grey board paper 2, the first supporting layer 3, the second supporting layer 4, and the lower grey board paper 5 are bonded in sequence from top to bottom.

[0015] The first supporting layer 3 and the second supporting layer 4 are made of bamboo fiber.

[0016] The first supporting layer 3 and the second supporting layer 4 have a structure in which the fiber directions are perpendicular.

[0017] The upper grey board paper 2g weight is 50-100g.

[0018] The first supporting layer 3 and the second supporting layer 4 have a gram weight of 100-250 grams.

[0019] The moisture-proof and tear-resistant grey board paper improves the existing technology. In actual use, the existing technology still needs sufficient thickness to ensure sufficient strength when used in scenarios with high strength requirements such as outer packaging. Too thick will increase the weight, which is not conducive to reducing logistics costs. By adding a supporting layer of bamboo fiber material to increase the strength inside the grey board paper, the strength of the grey board paper can be effectively improved. At the same time, bamboo fiber is used as a reinforcing structure in this solution. After being abandoned, the bamboo fiber has good degradability and will not cause pollution to the environment.

[0020] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A moisture-proof and tear-resistant grey board, characterized by: Its structure includes an upper hydrophobic coating, an upper gray board paper, a first supporting layer, a second supporting layer, a lower gray board paper, and a lower hydrophobic coating. The upper hydrophobic coating is arranged on the upper side of the upper gray board paper, the first supporting layer is arranged below the upper gray board paper, the second supporting layer is arranged below the first supporting layer, the lower gray board paper is arranged below the second supporting layer, and the lower hydrophobic coating is arranged on the lower side of the lower gray board paper. The upper gray board paper, the first supporting layer, the second supporting layer, and the lower gray board paper are bonded in sequence from top to bottom.

2. The moisture-proof and tear-resistant grey board paper according to claim 1, characterized in that: The first supporting layer and the second supporting layer are made of bamboo fiber.

3. The moisture-proof and tear-resistant grey board paper according to claim 1, characterized in that: The first supporting layer and the second supporting layer adopt a structure in which the fiber directions are perpendicular.

4. The moisture-proof and tear-resistant grey board paper according to claim 1, characterized in that: The upper grey board paper has a gram weight of 50-100 grams.

5. The moisture-proof and tear-resistant grey board paper according to claim 1, characterized in that: The first supporting layer and the second supporting layer have a gram weight of 100-250 grams.

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