CN221740755U - A kind of recycled high-strength paperboard - Google Patents

Abstract

The utility model discloses a high-strength paperboard for recycling, belonging to the technical field of paperboard. The technical scheme thereof comprises an upper paperboard main body and a lower paperboard main body, a sandwich paperboard is arranged between opposite sides of the upper paperboard main body and the lower paperboard main body, a paper core layer is arranged on the side of the sandwich paperboard close to the upper paperboard main body and the lower paperboard main body, and a cavity is arranged inside the paper core layer, a buffer layer is arranged inside the cavity, a seal is arranged between the opposite sides of the upper paperboard main body and the lower paperboard main body, a moisture-proof layer is arranged on the opposite side of the upper paperboard main body and the lower paperboard main body and the surface of the seal, thereby solving the problem that the existing paperboard has poor toughness, when being squeezed by heavy objects and disturbed by external force factors, the paperboard is easy to bend, thereby affecting the bearing capacity of the paperboard, thus affecting the recycling of the paperboard, and thus affecting the recycling effect.

Description

A kind of recycled high-strength paperboard

Technical Field

The utility model relates to the technical field of paperboards, in particular to a recyclable high-strength paperboard.

Background Art

Cardboard, also known as board paper, is a thick paper sheet made from various pulps and composed of interwoven fibers. Cardboard is usually made from various plant fibers, and some non-plant fibers are mixed in. It is made on a cardboard machine. Some special cardboards are also mixed with animal fibers such as wool or mineral fibers such as asbestos. According to their uses, they can be divided into packaging cardboard, industrial technology cardboard, construction cardboard, printing and decorative cardboard, etc.

At present, a Chinese utility model patent with announcement number CN215795072U discloses a cardboard with moisture-proof function, including an upper and lower layer of cardboard, a corrugated paper core is arranged between the two layers of cardboard, and the upper and lower sides of the corrugated paper core are respectively fixed to the two layers of cardboard, and the side walls of the two layers of cardboard on the opposite sides are pasted with PET protective films, a limiting frame is arranged above the two layers of cardboard, and the limiting frame is filled with activated carbon and desiccant, and four paper plugs are symmetrically fixedly connected to the bottom of the limiting frame, one layer of cardboard and the corrugated paper core are provided with a socket matching the paper plug, and the corrugated paper core is fixedly embedded with a sleeve, and the sleeve is arranged away from the side of the limiting frame. The utility model can make the paper box made of cardboard waterproof, and at the same time can absorb moisture and odor in the paper box, and can also pad the paper box as needed to ensure the exhaust effect after it is made into a paper box.

Although the above patent can make the cardboard waterproof and resistant to moisture and odor, there is a problem that the cardboard has poor toughness. When squeezed by heavy objects and disturbed by external forces, the cardboard is prone to bend, which affects the bearing capacity of the cardboard and thus affects the recyclability of the cardboard.

Utility Model Content

The utility model provides a recyclable high-strength paperboard, aiming to solve the problem of poor toughness of the existing paperboard. When squeezed by heavy objects and disturbed by external forces, the paperboard is prone to bend, thereby affecting the bearing capacity of the paperboard, thus affecting the recyclability of the paperboard, and thus affecting the recycling effect.

The utility model is realized in this way: a recyclable high-strength paperboard comprises an upper paperboard main body and a lower paperboard main body, a sandwich paperboard is arranged between the opposite sides of the upper paperboard main body and the lower paperboard main body, a paper core layer is arranged on the side of the sandwich paperboard close to the upper paperboard main body and the lower paperboard main body, and a cavity is arranged inside the paper core layer, a buffer layer is arranged inside the cavity, a seal is arranged between the opposite sides of the upper paperboard main body and the lower paperboard main body, and a moisture-proof layer is arranged on the opposite side of the upper paperboard main body and the lower paperboard main body and the surface of the seal.

In order to achieve the effect of ensuring the usability of the cardboard, as a preferred high-strength cardboard for recycling of the utility model, the upper cardboard body and the lower cardboard body are both made of kraft paper.

In order to achieve the effect of improving the toughness of the paperboard, as a preferred recycled high-strength paperboard of the utility model, the paper core layer is composed of a honeycomb paper core and is respectively bonded to the top and bottom of the sandwich paperboard.

In order to achieve the effect of enhancing the energy absorption performance of the paperboard, as a preferred recycled high-strength paperboard of the utility model, the buffer layer is composed of energy-absorbing foam and is bonded to the inside of the paper core layer.

In order to achieve the effect of connecting the upper paperboard body and the lower paperboard body, as a preferred recycled high-strength paperboard of the utility model, the seal is made of corrugated paper and is respectively bonded to the upper paperboard body and the lower paperboard body.

In order to achieve the effect of preventing water erosion, as a preferred recyclable high-strength paperboard of the utility model, the moisture-proof layer is composed of a polyethylene coating and is respectively bonded to one side close to the upper paperboard body and the lower paperboard body.

Compared with the prior art, the beneficial effects of the utility model are:

The recyclable high-strength paperboard has a structure of a paper core layer, a sandwich paperboard, a cavity and a buffer layer. When the upper paperboard body and the lower paperboard body are subjected to force, the buffer layer and the paper core layer can cooperate to buffer and absorb the applied pressure, and diffuse the pressure to the sandwich paperboard, thereby improving the toughness and use strength of the paperboard, preventing the paperboard from being easily squeezed by heavy objects or bending due to external forces, thereby ensuring the use effect and usability of the paperboard, and through the setting of the moisture-proof layer and the seal, it can prevent external moisture from eroding the inside, avoiding the problem of reduced strength due to moisture on the paperboard, ensuring the use strength of the paperboard, and making it recyclable.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an overall structural diagram of the recyclable high-strength paperboard of the utility model;

FIG2 is a schematic diagram showing the connection between the upper paperboard body and the lower paperboard body of the present invention;

Fig. 3 is a partial connection diagram of the upper paperboard body and the lower paperboard body in the utility model.

In the figure, 1. upper cardboard body; 2. lower cardboard body; 3. sandwich cardboard; 4. paper core layer; 5. cavity; 6. buffer layer; 7. seal; 8. moisture-proof layer.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

Please refer to Figures 1-3. The utility model provides a technical solution: a recyclable high-strength paperboard, including an upper paperboard body 1 and a lower paperboard body 2, a sandwich paperboard 3 is arranged between the opposite sides of the upper paperboard body 1 and the lower paperboard body 2, and the sandwich paperboard 3 is respectively provided with a paper core layer 4 on the side close to the upper paperboard body 1 and the lower paperboard body 2, and a cavity 5 is arranged inside the paper core layer 4, and a buffer layer 6 is arranged inside the cavity 5, a seal 7 is arranged between the opposite sides of the upper paperboard body 1 and the lower paperboard body 2, and a moisture-proof layer 8 is arranged on the opposite side of the upper paperboard body 1 and the lower paperboard body 2 and the surface of the seal 7.

In this embodiment: through the structural arrangement of the paper core layer 4, the sandwich paperboard 3, the cavity 5 and the buffer layer 6, when the upper paperboard body 1 and the lower paperboard body 2 are subjected to force, the buffer layer 6 and the paper core layer 4 can cooperate to buffer and absorb the applied pressure, and diffuse the pressure to the sandwich paperboard 3, thereby improving the toughness and use strength of the paperboard, preventing the paperboard from being easily squeezed by heavy objects or bending due to external forces, thereby ensuring the use effect and usability of the paperboard, and through the arrangement of the moisture-proof layer 8 and the seal 7, it can prevent external moisture from eroding the inside, avoiding the problem of reduced strength due to moisture on the paperboard, ensuring the use strength of the paperboard, and making it recyclable.

As a technical optimization solution of the utility model, the upper paperboard body 1 and the lower paperboard body 2 are both made of kraft paper.

In this embodiment, by setting the upper paperboard body 1 and the lower paperboard body 2 to be made of kraft paper, the effect of ensuring the usability of the paperboard can be achieved.

As a technical optimization solution of the utility model, the paper core layer 4 is composed of a honeycomb paper core and is respectively bonded to the top and bottom of the sandwich paperboard 3.

In this embodiment, the paper core layer 4 is formed of a honeycomb paper core and is bonded to the top and bottom of the sandwich paperboard 3 respectively, which can absorb the pressure and improve the toughness of the paperboard, making it less prone to damage.

As a technical optimization solution of the present invention, the buffer layer 6 is made of energy-absorbing foam and is bonded to the inside of the paper core layer 4 .

In this embodiment, the buffer layer 6 is made of energy-absorbing foam and bonded to the inside of the paper core layer 4, so as to buffer the applied pressure, thereby improving the toughness and use strength of the paperboard and preventing the paperboard from being easily squeezed by heavy objects or bent by external forces.

As a technical optimization solution of the present utility model, the seal strip 7 is made of corrugated paper and is bonded to the upper paperboard body 1 and the lower paperboard body 2 respectively.

In this embodiment, the seal strip 7 is made of corrugated paper and is bonded to the upper paperboard body 1 and the lower paperboard body 2 respectively, so as to connect the upper paperboard body 1 and the lower paperboard body 2 and seal the space between them.

As a technical optimization solution of the present invention, the moisture-proof layer 8 is made of a polyethylene coating and is respectively bonded to one side close to the upper paperboard body 1 and the lower paperboard body 2 .

In this embodiment, the moisture-proof layer 8 is formed of a polyethylene coating and is respectively bonded to one side close to the upper paperboard body 1 and the lower paperboard body 2, so as to prevent external moisture from eroding the inside, avoid the problem of strength reduction due to moisture on the paperboard, ensure the use strength of the paperboard, and make it recyclable.

Working principle: First, through the structural setting of the paper core layer 4, the sandwich paperboard 3, the cavity 5 and the buffer layer 6, when the upper paperboard body 1 and the lower paperboard body 2 are subjected to force, the buffer layer 6 and the paper core layer 4 can cooperate to buffer and absorb the applied pressure, and diffuse the pressure to the sandwich paperboard 3, thereby improving the toughness and use strength of the paperboard, preventing the paperboard from being easily squeezed by heavy objects or bending due to external forces, thereby ensuring the use effect and usability of the paperboard, and through the setting of the moisture-proof layer 8 and the seal 7, it can prevent external moisture from eroding into the inside, avoiding the problem of reduced strength due to moisture in the paperboard, ensuring the use strength of the paperboard, and making it recyclable.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A recyclable high-strength paperboard, comprising an upper paperboard body (1) and a lower paperboard body (2), characterized in that: a sandwich paperboard (3) is arranged between the opposite sides of the upper paperboard body (1) and the lower paperboard body (2), a paper core layer (4) is arranged on the side of the sandwich paperboard (3) close to the upper paperboard body (1) and the lower paperboard body (2), and a cavity (5) is arranged inside the paper core layer (4), and a buffer layer (6) is arranged inside the cavity (5), a seal (7) is arranged between the opposite sides of the upper paperboard body (1) and the lower paperboard body (2), and a moisture-proof layer (8) is arranged on the opposite side of the upper paperboard body (1) and the lower paperboard body (2) and the surface of the seal (7). 2. The recyclable high-strength paperboard according to claim 1, characterized in that the upper paperboard body (1) and the lower paperboard body (2) are both made of kraft paper. 3. The recyclable high-strength paperboard according to claim 1, characterized in that the paper core layer (4) is composed of a honeycomb paper core and is respectively bonded to the top and bottom of the sandwich paperboard (3). 4. The recyclable high-strength paperboard according to claim 1, characterized in that the buffer layer (6) is made of energy-absorbing foam and is bonded to the inside of the paper core layer (4). 5. The recyclable high-strength paperboard according to claim 1, characterized in that the seal strip (7) is made of corrugated paper and is bonded to the upper paperboard body (1) and the lower paperboard body (2) respectively. 6. A recyclable high-strength paperboard according to claim 1, characterized in that the moisture-proof layer (8) is made of polyethylene coating and is respectively bonded to one side close to the upper paperboard body (1) and the lower paperboard body (2).