Packaging carton with moisture-proof structure

Abstract

The utility model discloses a packaging carton with a moisture-proof structure, which comprises a packaging carton main body, the packaging carton main body comprises a main body layer, a moisture absorption layer is arranged on the inner wall of the main body layer, an inner waterproof layer is arranged on the inner wall of the moisture absorption layer, an outer waterproof layer is arranged on the surface of the main body layer, the main body layer comprises two covering layers, and the covering layers are arranged on the outer surface of the main body layer. A compression-resistant layer is arranged between the opposite sides of the two covering layers, the covering layers are made of corrugated boards, the compression-resistant layer is made of honeycomb paperboards, the covering layers and the compression-resistant layer are bonded, the moisture absorption layer comprises two protective layers, and the sides, close to the main body layer and the inner waterproof layer, of the protective layers are connected with the main body layer and the inner waterproof layer respectively. The problems that due to the limitation of the material of the packaging carton, a conventional packaging carton easily absorbs water in a humid environment, the strength of the packaging carton is reduced, the packaging carton deforms, even the quality of internal objects is affected, and then the usability of the packaging carton is affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of packaging cartons, in particular to a packaging carton with a moisture-proof structure. Background Art

[0002] A packaging carton is made of paper products and is used for packaging various items. The packaging carton has the advantages of low cost, easy encapsulation, suitable for adding fillers, cleanliness, etc., and is suitable for product factory packaging, item transportation, material sorting, etc.

[0003] However, in the actual transportation process, under the action of pressure, the packaging carton is prone to deformation. In severe cases of deformation, the pressure will directly act on the goods inside the packaging box, and the compressed goods are easily damaged, resulting in an impact on the sale or use of the goods.

[0004] The existing patent (Publication No.: CN215476343U) discloses a packaging carton. By extending the wing plate to the outer surface of the corresponding side wall and abutting against the side wall, the integrity of the cover plate and the side wall of the box can be increased, so that the pressure received by the side wall can be better dispersed to the cover plate, reducing the pressure on the side wall. Moreover, the wing plate can play a limiting role on the side wall to resist the deformation of the side wall. The pressure conduction and limiting effects of the wing plate can enhance the overall stability of the packaging carton and better protect the goods inside the packaging carton.

[0005] In view of the above problems, the existing patent gives a solution. However, due to the material problem of the packaging carton, conventional packaging cartons are prone to absorb moisture in a humid environment, resulting in problems such as reduced strength and deformation of the packaging carton, and even affecting the quality of the internal items, thereby affecting the usability of the packaging carton. Summary of the Utility Model

[0006] The main purpose of the utility model is to provide a packaging carton with a moisture-proof structure, aiming to solve the problems that due to the material problem of the packaging carton, conventional packaging cartons are prone to absorb moisture in a humid environment, resulting in problems such as reduced strength and deformation of the packaging carton, and even affecting the quality of the internal items, thereby affecting the usability of the packaging carton.

[0007] To achieve the above purpose, a packaging carton with a moisture-proof structure proposed by the utility model includes a packaging carton main body. The packaging carton main body includes a main body layer. A moisture absorption layer is arranged on the inner wall of the main body layer, and an inner waterproof layer is arranged on the inner wall of the moisture absorption layer. An outer waterproof layer is arranged on the surface of the main body layer.

[0008] Preferably, the main body layer includes two covering layers, and a compression layer is arranged between the opposite sides of the two covering layers.

[0009] Preferably, the cover layer is made of corrugated cardboard, and the compression layer is made of honeycomb cardboard, and the cover layer and the compression layer are bonded together.

[0010] Preferably, the moisture absorption layer includes two protective layers. One side of each protective layer close to the main body layer and the inner waterproof layer is connected to them respectively, and desiccant particles are filled between the opposite sides of the two protective layers.

[0011] Preferably, the protective layer is made of kraft paper and is bonded to the side close to the main body layer.

[0012] Preferably, the inner waterproof layer is made of a polymer waterproof and breathable film and is bonded to the side close to the protective layer.

[0013] Preferably, the outer waterproof layer is made of a polyethylene film and is bonded to the surface of the main body layer.

[0014] In the technical solution of the present utility model, the packaging carton body is composed of a main body layer, a moisture absorption layer, an inner waterproof layer and an outer waterproof layer in a composite setting. Through the main body layer, the structural strength of the packaging carton body can be enhanced, making it have good compressive performance. Therefore, it is not easily damaged under pressure. Through the inner waterproof layer with good waterproof performance, the inside of the packaging carton body is not easily affected by moisture, and at the same time, it allows the moisture inside the packaging carton body to escape. Then, the moisture absorption layer adsorbs it, so that the inside of the packaging carton body has a good dry environment. And through the setting of the outer waterproof layer, it can further block the intrusion of external moisture, making the packaging carton body not easily absorb moisture in a humid environment, thus avoiding the problems of reduced strength and deformation of the packaging carton, and further protecting the quality of the internal items and ensuring the usability of the packaging carton body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the decomposition of the packaging carton body of an embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of the decomposition of the main body layer of an embodiment of the present utility model;

[0019] Figure 4Schematic diagram of the decomposition of the moisture absorption layer in the embodiment of the present utility model.

[0020] Explanation of the reference numerals in the attached drawings: 1. Main body of the packaging carton; 2. Main body layer; 21. Cover layer; 22. Compression layer; 3. Moisture absorption layer; 31. Protective layer; 32. Desiccant particles; 4. Inner waterproof layer; 5. Outer waterproof layer.

[0021] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] Moreover, the technical solutions between the various embodiments of the present utility model can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] The present utility model provides a packaging carton with a moisture-proof structure, aiming to solve the problem restricted by the material of the packaging carton. Conventional packaging cartons are prone to absorbing moisture in a humid environment, resulting in a reduction in the strength and deformation of the packaging carton, and even affecting the quality of the internal items, thereby affecting the usability of the packaging carton.

[0027] Such as Figures 1-4As shown in the figure, a packaging carton with a moisture-proof structure provided by an embodiment of the present utility model includes a packaging carton main body 1. The packaging carton main body 1 includes a main body layer 2. An inner wall of the main body layer 2 is provided with a moisture absorption layer 3, and an inner wall of the moisture absorption layer 3 is provided with an inner waterproof layer 4. An outer surface of the main body layer 2 is provided with an outer waterproof layer 5.

[0028] In the technical solution of the present utility model, the packaging carton main body 1 is composed of a main body layer 2, a moisture absorption layer 3, an inner waterproof layer 4, and an outer waterproof layer 5 in a composite setting. The main body layer 2 can enhance the structural strength of the packaging carton main body 1, making it have good compressive performance, so it is not easily damaged under pressure. The inner waterproof layer 4 has good waterproof performance, so that the inside of the packaging carton main body 1 is not easily affected by moisture, and at the same time allows the moisture inside the packaging carton main body 1 to penetrate out, and then is adsorbed by the moisture absorption layer 3, so that the inside of the packaging carton main body 1 has a good dry environment. And through the setting of the outer waterproof layer 5, it can further prevent the intrusion of external moisture, making the packaging carton main body 1 not easily absorb moisture in a humid environment, thus avoiding the problems of reduced strength and deformation of the packaging carton, and further protecting the quality of the internal items and ensuring the usability of the packaging carton main body 1.

[0029] Please refer to Figure 3 , the main body layer 2 includes two covering layers 21, and a compressive layer 22 is provided between opposite sides of the two covering layers 21. In this embodiment, since the main body layer 2 includes the covering layer 21 and the compressive layer 22, the covering layer 21 can protect the compressive layer 22, thus facilitating the connection of the main body layer 2 with the outer waterproof layer 5 and the moisture absorption layer 3 respectively. Under the action of the compressive layer 22, the structural strength of the packaging carton main body 1 can be enhanced, making it have good compressive performance, so it is not easily damaged under pressure.

[0030] Furthermore, please continue to refer to Figure 3 , the covering layer 21 is made of corrugated cardboard, and the compressive layer 22 is made of honeycomb cardboard, and the covering layer 21 is bonded to the compressive layer 22. In this embodiment, by setting the covering layer 21 and the compressive layer 22 to be made of corrugated cardboard and honeycomb cardboard respectively, the structural strength of the packaging carton main body 1 can be greatly enhanced under their combined use, making it have good mechanical properties.

[0031] Please continue to refer to Figure 4 , the moisture absorption layer 3 includes two protective layers 31. The sides of the protective layers 31 close to the main body layer 2 and the inner waterproof layer 4 are connected to the two respectively, and desiccant particles 32 are filled between opposite sides of the two protective layers 31. In this embodiment, by setting the moisture absorption layer 3 to be composed of the protective layer 31 and the desiccant particles 32, the protective layer 31 can play a role in protecting the desiccant particles 32, and the desiccant particles 32 can adsorb the moisture inside the packaging carton main body 1, making the inside of the packaging carton main body 1 have a good dry environment.

[0032] Please refer to Figure 4 , the protective layer 31 is made of kraft paper and is adhered to the side close to the main body layer 2. In this embodiment, by setting the protective layer 31 to be made of kraft paper, the effect of protecting the desiccant particles 32 can be achieved.

[0033] Please refer to Figure 2 , the inner waterproof layer 4 is made of a polymer waterproof and breathable film and is adhered to the side close to the protective layer 31. In this embodiment, by making the inner waterproof layer 4 of a polymer waterproof and breathable film, it is not easy for the inside of the packaging carton main body 1 to get damp, and at the same time, the moisture inside the packaging carton main body 1 is allowed to escape.

[0034] In addition, please refer to Figure 2 , the outer waterproof layer 5 is made of a polyethylene film and is adhered to the surface of the main body layer 2. In this embodiment, by setting the outer waterproof layer 5 to be made of a polyethylene film, it can further block the intrusion of external moisture, so that the packaging carton main body 1 is not easy to absorb moisture in a humid environment, thereby avoiding the problems of reduced strength and deformation of the packaging carton, and further protecting the quality of the internal items and ensuring the usability of the packaging carton main body 1.

[0035] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A packaging carton with a moisture-proof structure, characterized in that, The packaging carton with the moisture-proof structure includes a packaging carton body (1). The packaging carton body (1) includes a main body layer (2). An inner wall of the main body layer (2) is provided with a moisture-absorbing layer (3), and an inner wall of the moisture-absorbing layer (3) is provided with an inner waterproof layer (4). A surface of the main body layer (2) is provided with an outer waterproof layer (5). The moisture-absorbing layer (3) includes two protective layers (31). One sides of the protective layers (31) close to the main body layer (2) and the inner waterproof layer (4) are respectively connected to the two layers. Desiccant particles (32) are filled between opposite sides of the two protective layers (31). The protective layer (31) is made of kraft paper and is bonded to the side close to the main body layer (2). The inner waterproof layer (4) is made of a polymer waterproof and breathable film and is bonded to the side close to the protective layer (31).

2. The packaging carton with a moisture-proof structure according to claim 1, characterized in that, The main body layer (2) includes two covering layers (21). A compression-resistant layer (22) is arranged between opposite sides of the two covering layers (21).

3. The packaging carton with a moisture-proof structure according to claim 2, characterized in that, The covering layer (21) is made of corrugated cardboard, and the compression-resistant layer (22) is made of honeycomb cardboard. The covering layer (21) is bonded to the compression-resistant layer (22).

4. The packaging carton with a moisture-proof structure according to claim 1, characterized in that, The outer waterproof layer (5) is made of a polyethylene film and is bonded to the surface of the main body layer (2).

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