Paperboard with waterproof and moistureproof functions

Abstract

The utility model relates to the technical field of waterproof paperboards, in particular to a paperboard with waterproof and moisture-proof functions, which comprises an upper wear-resistant layer, an upper waterproof layer fixedly connected to the bottom of the upper wear-resistant layer, a plurality of corrugated layers fixedly connected to the bottom of the upper waterproof layer, and a plurality of supporting pipes fixedly connected to the side walls of the corrugated layers. A drying agent is fixedly connected into the supporting pipe, a baffle is fixedly connected between the corrugated layers, a lower waterproof layer is fixedly connected to the bottoms of the corrugated layers, a lower wear-resistant layer is fixedly connected to the bottom of the lower waterproof layer, and waterproof edge glue is fixedly connected to the side wall of the lower wear-resistant layer. According to the paperboard with the waterproof and moistureproof functions, through the arrangement of the supporting pipes, the drying agents and the like, when the paperboard is used, the strength of the paperboard with the waterproof and moistureproof functions is enhanced through the supporting pipes and the corrugated layers, meanwhile, residual water vapor in the paperboard is absorbed through the drying agents in the supporting pipes, and therefore moisture regain in the paperboard is avoided, and the protection effect on the paperboard is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof cardboard, and specifically relates to a cardboard with waterproof and moisture-proof functions. Background Technique

[0002] Cardboard is also called board paper. It is a thick paper sheet made by processing various pulp and composed of interwoven fibers. The difference between cardboard and paper is usually distinguished by basis weight and thickness. Generally, cardboard is defined as having a basis weight exceeding 250 g / m² and a thickness greater than 0.5 mm. It is usually made from various plant fibers as raw materials, and non-plant fibers are also added. It is manufactured on a cardboard machine. Some special cardboard also incorporates animal fibers such as wool or mineral fibers such as asbestos. Generally speaking, the term "paper" in our common understanding includes both paper and cardboard. In fact, the difference between paper and cardboard is only distinguished by their basis weight (the relative weight of the paper sheet per square meter area). Generally, paper with a basis weight of less than 200 g / ㎡ is called paper; paper with a basis weight of more than 200 g / ㎡ is called cardboard. In the past, the basis weight regulations for paper and cardboard in China were: paper with a basis weight below 150 ㎡ was called paper; cardboard with a basis weight above 200 g / ㎡ was called cardboard. Cardboard with a basis weight between 150 - 200 g / ㎡ was called cardboard (base paper). We usually call thin paper "paper" and thick paper "cardboard". However, in order to communicate information and exchange technology with foreign countries, now according to the recommendations of the International Organization for Standardization, the basis weight for distinguishing paper and cardboard is determined to be 225 g / ㎡.

[0003] After retrieval, a Chinese utility model patent discloses a cardboard with waterproof function with the publication number CN112078215 A, which includes a wear-resistant layer, a waterproof layer, a strengthening layer, a buffer layer, a protective layer and a contact layer. One side of the wear-resistant layer is connected to the waterproof layer, one side of the waterproof layer is connected to the strengthening layer, one side of the strengthening layer is connected to the buffer layer, one side of the buffer layer is connected to the protective layer, and one side of the protective layer is connected to the contact layer. The cardboard with waterproof function of the present invention can make its structure more solid by connecting the wear-resistant layer to the waterproof layer on one side, the waterproof layer to the strengthening layer on one side, the strengthening layer to the buffer layer on one side, the buffer layer to the protective layer on one side, and the protective layer to the contact layer on one side.

[0004] However, this cardboard with waterproof function lacks moisture-proof function. During long-term use, the waterproof layer will inevitably wear, resulting in water vapor invading the inside of the cardboard. Moreover, the side of this cardboard with waterproof function lacks waterproof protection, and moisture is likely to invade the inside of the cardboard from the side during use, causing the inside of the cardboard to be eroded and damaged. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a cardboard with waterproof and moisture-proof functions to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions:

[0007] A cardboard with waterproof and moisture-proof functions, comprising an upper wear-resistant layer, the bottom of the upper wear-resistant layer is fixedly connected with an upper waterproof layer, the bottom of the upper waterproof layer is fixedly connected with a plurality of corrugated layers, the side wall of the corrugated layer is fixedly connected with a plurality of support tubes, a desiccant is fixedly connected inside the support tube, a baffle is fixedly connected between the corrugated layers, the bottom of the corrugated layer is fixedly connected with a lower waterproof layer, the bottom of the lower waterproof layer is fixedly connected with a lower wear-resistant layer, and a waterproof edge glue is fixedly connected to the side wall of the lower wear-resistant layer.

[0008] Preferably, the upper wear-resistant layer, the upper waterproof layer, the corrugated layer, the baffle, the lower waterproof layer and the lower wear-resistant layer are adhesively bonded with glue adjacent to each other.

[0009] Preferably, the baffle is made of injection-grade PVC material, and a plurality of ventilation holes are provided at the top of the baffle.

[0010] Preferably, fixing seats are fixedly connected to both ends of the support tube.

[0011] Preferably, waterproof coatings are applied to the outer walls of the upper wear-resistant layer and the lower wear-resistant layer, and a plurality of bumps are fixedly connected to the bottom of the lower wear-resistant layer.

[0012] Preferably, both the upper waterproof layer and the lower waterproof layer are made of polyurethane flame-retardant waterproof coiled materials.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. For this cardboard with waterproof and moisture-proof functions, through the settings of the support tube, desiccant, etc., during use, the strength of this cardboard with waterproof and moisture-proof functions is enhanced by the support tube and the corrugated layer. At the same time, the residual water vapor inside the cardboard is absorbed by the desiccant inside the support tube, thereby avoiding the internal moisture return of the cardboard, so as to achieve the protection effect on the cardboard.

[0015] 2. For this cardboard with waterproof and moisture-proof functions, through the setting of the waterproof edge glue, during use, through the combined use of the waterproof edge glue with the upper wear-resistant layer and the lower wear-resistant layer, a relatively closed environment is provided inside the cardboard, making the cardboard have good waterproof performance. At the same time, the waterproof performance of the cardboard is further improved by the upper waterproof layer and the lower waterproof layer, thereby avoiding the occurrence of the situation where the cardboard is affected by moisture and rots. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a front view schematic diagram of the internal structure of the present utility model;

[0018] Figure 3 is a schematic side view of the internal structure of the present utility model;

[0019] Figure 4 is a schematic top view of the corrugated layer structure of the present utility model.

[0020] In the figure: 1, upper wear-resistant layer; 2, waterproof edge glue; 3, upper waterproof layer; 4, support tube; 5, corrugated layer; 6, desiccant; 7, baffle; 8, lower waterproof layer; 9, lower wear-resistant layer; 10, fixing seat; 11, ventilation hole. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 as shown, a technical solution provided by the present utility model:

[0023] A cardboard with waterproof and moisture-proof functions, characterized in that: it includes an upper wear-resistant layer 1, the bottom of the upper wear-resistant layer 1 is fixedly connected with an upper waterproof layer 3, the bottom of the upper waterproof layer 3 is fixedly connected with a plurality of corrugated layers 5, the side wall of the corrugated layer 5 is fixedly connected with a plurality of support tubes 4, the inside of the support tube 4 is fixedly connected with a desiccant 6, a baffle 7 is fixedly connected between the corrugated layers 5, the bottom of the corrugated layer 5 is fixedly connected with a lower waterproof layer 8, the bottom of the lower waterproof layer 8 is fixedly connected with a lower wear-resistant layer 9, and the side wall of the lower wear-resistant layer 9 is fixedly connected with a waterproof edge glue 2. Through the settings of the support tube 4, desiccant 6, etc., during use, the strength of the cardboard with waterproof and moisture-proof functions is enhanced by the support tube 4 and the corrugated layer 5. At the same time, the residual water vapor inside the cardboard is absorbed by the desiccant 6 inside the support tube 4, thereby avoiding the internal moisture return of the cardboard, so as to achieve the protection effect on the cardboard. Through the setting of the waterproof edge glue 2, during use, through the coordinated use of the waterproof edge glue 2 with the upper wear-resistant layer 1 and the lower wear-resistant layer 9, a relatively closed environment is provided inside the cardboard, so that the cardboard has good waterproofness. At the same time, the waterproofness of the cardboard is further improved by the upper waterproof layer 3 and the lower waterproof layer 8, thereby avoiding the occurrence of the situation where the cardboard is affected by moisture and rots.

[0024] In this embodiment, preferably, the upper wear-resistant layer 1, the upper waterproof layer 3, the corrugated layer 5, the baffle 7, the lower waterproof layer 8 and the lower wear-resistant layer 9 are adhesively bonded with glue adjacent to each other.

[0025] In this embodiment, preferably, the baffle 7 is made of injection-molded PVC material. A plurality of ventilation holes 11 are provided at the top of the baffle 7. Through the arrangement of the ventilation holes 11, the spaces of the upper and lower corrugated layers 5 can communicate with each other, which is beneficial to the absorption of water vapor inside the cardboard by the desiccant 6 inside the support tube 4.

[0026] In this embodiment, preferably, fixed seats 10 are fixedly connected to both ends of the support tube 4. Through the arrangement of the fixed seats 10, a strengthening effect is provided on the sides of the corrugated layer 5. At the same time, both ends of the support tube 4 are fixed by the fixed seats 10, avoiding the sliding phenomenon of the support tube 4 during use and making the support tube 4 more stable.

[0027] In this embodiment, preferably, waterproof coatings are applied to the outer walls of the upper wear-resistant layer 1 and the lower wear-resistant layer 9. A plurality of bumps are fixedly connected to the bottom of the lower wear-resistant layer 9. Through the arrangement of the waterproof coatings on the outer walls of the upper wear-resistant layer 1 and the lower wear-resistant layer 9, the waterproof ability of the cardboard is further improved. Through the arrangement of the bumps at the bottom of the lower wear-resistant layer 9, the friction at the bottom of the lower wear-resistant layer 9 is enhanced, thereby reducing the slipping phenomenon of the cardboard during use.

[0028] In this embodiment, preferably, both the upper waterproof layer 3 and the lower waterproof layer 8 are made of polyurethane flame-retardant waterproof coiled materials. Through the arrangement that both the upper waterproof layer 3 and the lower waterproof layer 8 are made of polyurethane flame-retardant waterproof coiled materials, the cardboard also has a certain flame-retardant effect, avoiding the cardboard stacked together from being easily ignited.

[0029] When a cardboard with waterproof and moisture-proof functions in this embodiment is in use, the support tube 4 and the corrugated layer 5 play a role in strengthening the strength of the cardboard with waterproof and moisture-proof functions. At the same time, the desiccant 6 inside the support tube 4 absorbs the residual water vapor inside the cardboard, thus avoiding the moisture return inside the cardboard and achieving the protection effect on the cardboard. Through the setting of the waterproof edge glue 2, when in use, through the combined use of the waterproof edge glue 2 with the upper wear-resistant layer 1 and the lower wear-resistant layer 9, a relatively closed environment is provided inside the cardboard, making the cardboard have good waterproof performance. At the same time, the waterproof performance of the cardboard is further improved through the upper waterproof layer 3 and the lower waterproof layer 8, thus avoiding the occurrence of the situation where the cardboard gets damp and rots. Through the setting of the ventilation holes 11, the spaces of the upper and lower corrugated layers 5 can communicate with each other, which is beneficial for the desiccant 6 inside the support tube 4 to absorb the water vapor inside the cardboard. Through the setting of the fixing seat 10, it provides a strengthening effect on the side of the corrugated layer 5. At the same time, the two ends of the support tube 4 are fixed through the fixing seat 10, avoiding the sliding phenomenon of the support tube 4 during use and making the support tube 4 more stable. Through the setting of the waterproof coating on the outer walls of the upper wear-resistant layer 1 and the lower wear-resistant layer 9, the waterproof ability of the cardboard is further improved. Through the setting of the convex points at the bottom of the lower wear-resistant layer 9, the friction force at the bottom of the lower wear-resistant layer 9 is enhanced, thus reducing the slipping phenomenon of the cardboard during use. Through the setting that both the upper waterproof layer 3 and the lower waterproof layer 8 adopt polyurethane flame-retardant waterproof coiled materials, the cardboard also has a certain flame-retardant effect, avoiding the situation that the cardboard stacked together is easily ignited.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A paperboard with waterproof and moisture-proof function, characterized in that: The invention comprises an upper wear-resistant layer (1), an upper waterproof layer (3) is fixedly connected to the bottom of the upper wear-resistant layer (1), a plurality of corrugated layers (5) are fixedly connected to the bottom of the upper waterproof layer (3), a plurality of support tubes (4) are fixedly connected to the side walls of the corrugated layers (5), a desiccant (6) is fixedly connected inside the support tubes (4), baffles (7) are fixedly connected between the corrugated layers (5), a lower waterproof layer (8) is fixedly connected to the bottom of the corrugated layers (5), a lower wear-resistant layer (9) is fixedly connected to the bottom of the lower waterproof layer (8), and a waterproof edge glue (2) is fixedly connected to the side walls of the lower wear-resistant layer (9).

2. The paperboard with waterproof and moisture-proof function according to claim 1, characterized in that: The upper wear-resistant layer (1), the upper waterproof layer (3), the corrugated layer (5), the baffle (7), the lower waterproof layer (8) and the lower wear-resistant layer (9) are all bonded together by glue.

3. The paperboard with waterproof and moisture-proof function according to claim 1, characterized in that: The baffle (7) is made of injection-molding grade PVC material, and a plurality of air holes (11) are provided on the top of the baffle (7).

4. The paperboard with waterproof and moisture-proof function according to claim 1, characterized in that: Both ends of the support tube (4) are fixedly connected with fixing seats (10).

5. The paperboard with waterproof and moisture-proof function according to claim 1, characterized in that: The outer walls of the upper wear-resistant layer (1) and the lower wear-resistant layer (9) are coated with a waterproof coating, and a plurality of protrusions are fixedly connected to the bottom of the lower wear-resistant layer (9).

6. The paperboard with waterproof and moisture-proof function according to claim 1, characterized in that: The upper waterproof layer (3) and the lower waterproof layer (8) are both made of polyurethane flame-retardant waterproof coiled material.

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