Environment-friendly corrugated paperboard with compression resistance and waterproofness

Abstract

The utility model discloses an environmental protection type compression -resistant waterproof corrugated paperboard belongs to corrugated paperboard technical field, including trapezoidal corrugated support layer, bamboo fiber reinforced layer, honey wax waterproof layer, sulphate wear -resisting layer and internal protective layer, bamboo fiber reinforced layer is bonded through first starch adhesive layer the outside of trapezoidal corrugated support layer, honey wax waterproof layer is bonded through second starch adhesive layer the outside of bamboo fiber reinforced layer, sulphate wear -resisting layer is bonded through third starch adhesive layer the outside of honey wax waterproof layer, through the setting of trapezoidal corrugated support layer, can disperse external force, promote the anti -deformation ability and compression resistance of corrugated paperboard, through the setting of bamboo fiber reinforced layer, can strengthen the overall structure stability, avoid the corrugated pressure collapse, and bamboo fiber is fast -growing material, can degrade, and the environmental protection is more excellent, through the setting of honey wax waterproof layer, can block moisture penetration, and honey wax is natural material, and can degrade naturally after discarding, and the environmental protection effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated cardboard technology, specifically relating to an environmentally friendly, pressure-resistant, and waterproof corrugated cardboard. Background Technology

[0002] Corrugated cardboard, as a lightweight, low-cost packaging material with certain cushioning properties, has been widely used in logistics, e-commerce packaging, food packaging, and industrial product cushioning packaging due to its convenient processing and relatively wide availability of raw materials. It is one of the most widely used and widely applied basic materials in the modern packaging industry. With the rapid development of the global e-commerce industry and the increasing demand for packaging protection in the consumer market, the market's performance requirements for corrugated cardboard have shifted from the traditional "low cost and lightweight" to "high strength, environmental resistance, and high environmental friendliness."

[0003] Currently, most existing corrugated cardboard uses V-flute or U-flute structures. To improve compressive strength, existing technologies often involve adding reinforcing materials such as glass fiber and polyester fiber to the support layer, or increasing the number of cardboard layers. However, these reinforcing materials are mostly non-degradable synthetic fibers, which easily form "white pollution" after being discarded, resulting in high production costs and hindering sustainable resource utilization, thus having poor environmental performance. Utility Model Content

[0004] The purpose of this utility model is to provide an environmentally friendly, pressure-resistant, and waterproof corrugated cardboard to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly, pressure-resistant, and waterproof corrugated cardboard, comprising a trapezoidal corrugated support layer, a bamboo fiber reinforcement layer, a beeswax waterproof layer, a sulfate abrasion-resistant layer, and an inner protective layer. A first starch adhesive layer is provided on both sides of the trapezoidal corrugated support layer. The bamboo fiber reinforcement layer is bonded to the outside of the trapezoidal corrugated support layer via the first starch adhesive layer. A second starch adhesive layer is provided on the surface of the bamboo fiber reinforcement layer. The beeswax waterproof layer is bonded to the outside of the bamboo fiber reinforcement layer via the second starch adhesive layer. A third starch adhesive layer is provided on the surface of the beeswax waterproof layer. The sulfate abrasion-resistant layer is bonded to the outside of the beeswax waterproof layer via the third starch adhesive layer. The inner protective layer is bonded to the inside of the trapezoidal corrugated support layer via the first starch adhesive layer.

[0006] In a preferred embodiment, the corrugated apex angle of the trapezoidal corrugated support layer is sixty degrees.

[0007] In a preferred embodiment, the bamboo fiber reinforcement layer is made of plain-weave bamboo fiber.

[0008] In a preferred embodiment, the beeswax waterproof layer comprises softwood pulp paper and a natural beeswax coating disposed on the surface of the softwood pulp paper.

[0009] In a preferred embodiment, the sulfate abrasion-resistant layer is sulfate softwood pulp paper.

[0010] In a preferred embodiment, the inner protective layer is made of virgin wood pulp paper.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This environmentally friendly, pressure-resistant, and waterproof corrugated cardboard features a trapezoidal corrugated support layer. Compared to traditional V-shaped and U-shaped corrugations, the trapezoidal corrugations distribute stress more evenly under load, thus dispersing external forces and improving the cardboard's resistance to deformation and compression. This environmentally friendly, pressure-resistant, and waterproof corrugated cardboard, through the addition of a bamboo fiber reinforcement layer, connects the trapezoidal corrugated support layer and the beeswax waterproof layer, enhancing the overall structural stability and preventing the corrugations from collapsing under pressure. Furthermore, bamboo fiber is a fast-growing and biodegradable material, making it more environmentally friendly. The beeswax waterproof layer effectively blocks moisture penetration. Beeswax is a natural material that can naturally degrade after disposal, avoiding pollution from chemical waterproofing agents and providing excellent environmental performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the beeswax waterproof layer of this utility model.

[0013] In the diagram: 1. Trapezoidal corrugated support layer; 2. Bamboo fiber reinforcement layer; 3. Beeswax waterproof layer; 31. Softwood pulp paper; 32. Natural beeswax coating; 4. Sulfate abrasion-resistant layer; 5. Inner protective layer; 6. First starch adhesive layer; 7. Second starch adhesive layer; 8. Third starch adhesive layer. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figure 1-2This utility model provides an environmentally friendly, pressure-resistant, and waterproof corrugated cardboard, comprising a trapezoidal corrugated support layer 1, a bamboo fiber reinforcing layer 2, a beeswax waterproof layer 3, a sulfate abrasion-resistant layer 4, and an inner protective layer 5. The apex angle of the trapezoidal corrugated support layer 1 is 60 degrees. Compared with traditional V-shaped and U-shaped corrugations, the trapezoidal corrugation distributes stress more evenly when subjected to force, increasing the compressive strength by 20%. The trapezoidal corrugated support layer 1 can disperse external forces and improve the deformation resistance of the corrugated cardboard.

[0017] Both sides of the trapezoidal corrugated support layer 1 are provided with a first starch adhesive layer 6. The bamboo fiber reinforcement layer 2 is bonded to the outside of the trapezoidal corrugated support layer 1 through the first starch adhesive layer 6. The bamboo fiber reinforcement layer 2 is made of plain-weave bamboo fiber. The bamboo fiber reinforcement layer 2 can connect the trapezoidal corrugated support layer 1 and the beeswax waterproof layer 3, strengthen the overall structural stability, and prevent the corrugated layer from collapsing under pressure. In addition, bamboo fiber is a fast-growing material that is biodegradable and more environmentally friendly.

[0018] The inner protective layer 5 is bonded to the inside of the trapezoidal corrugated support layer 1 by the first starch adhesive layer 6. The inner protective layer 5 is made of virgin wood pulp paper, which is soft, biodegradable, and more environmentally friendly. The inner protective layer 5 allows direct contact with the packaged items, preventing scratches and damage.

[0019] A second starch adhesive layer 7 is provided on the surface of the bamboo fiber reinforcing layer 2. The beeswax waterproof layer 3 is bonded to the outside of the bamboo fiber reinforcing layer 2 through the second starch adhesive layer 7. The beeswax waterproof layer 3 includes softwood pulp paper 31 and a natural beeswax coating 32 on the surface of the softwood pulp paper 31. Beeswax has strong waterproof properties, no chemical additives, and the softwood pulp paper 31 is recyclable, making it more environmentally friendly. The beeswax waterproof layer 3 can block water penetration. Beeswax is a natural material that can be naturally degraded after disposal, avoiding pollution from chemical waterproofing agents.

[0020] A third starch adhesive layer 8 is provided on the surface of the beeswax waterproof layer 3. The sulfate abrasion-resistant layer 4 is bonded to the outside of the beeswax waterproof layer 3 through the third starch adhesive layer 8. The sulfate abrasion-resistant layer 4 is made of sulfate softwood pulp paper. Sulfate softwood pulp paper is recyclable and has better weather resistance than ordinary wood pulp paper, making it more environmentally friendly. The sulfate abrasion-resistant layer 4 can resist friction and collision during transportation, reducing damage to the packaging surface caused by external objects.

[0021] The working principle and usage process of this utility model are as follows: First, by setting the trapezoidal corrugated support layer 1, the trapezoidal corrugation, compared with the traditional V-shaped and U-shaped corrugations, distributes stress more evenly when subjected to force, and improves the compressive strength by 20%. It can disperse external forces and improve the deformation resistance of corrugated cardboard. By setting the bamboo fiber reinforcement layer 2, the trapezoidal corrugated support layer 1 and the beeswax waterproof layer 3 can be connected, which can strengthen the overall structural stability and prevent the corrugations from collapsing under pressure. Moreover, bamboo fiber is a fast-growing material, which is biodegradable and more environmentally friendly. By setting the beeswax waterproof layer 3, moisture penetration can be blocked. Beeswax is a natural material that can be naturally degraded after disposal, avoiding pollution from chemical waterproofing agents. By setting the sulfate wear-resistant layer 4, friction and collision during transportation can be resisted, reducing damage to the packaging surface caused by external objects.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly, pressure-resistant, and waterproof corrugated cardboard, comprising a trapezoidal corrugated support layer (1), a bamboo fiber reinforcement layer (2), a beeswax waterproof layer (3), a sulfate abrasion-resistant layer (4), and an inner protective layer (5), characterized in that: The trapezoidal corrugated support layer (1) has a first starch adhesive layer (6) on both sides. The bamboo fiber reinforcement layer (2) is bonded to the outside of the trapezoidal corrugated support layer (1) through the first starch adhesive layer (6). The surface of the bamboo fiber reinforcement layer (2) is provided with a second starch adhesive layer (7). The beeswax waterproof layer (3) is bonded to the outside of the bamboo fiber reinforcement layer (2) through the second starch adhesive layer (7). The surface of the beeswax waterproof layer (3) is provided with a third starch adhesive layer (8). The sulfate wear-resistant layer (4) is bonded to the outside of the beeswax waterproof layer (3) through the third starch adhesive layer (8). The inner protective layer (5) is bonded to the inside of the trapezoidal corrugated support layer (1) through the first starch adhesive layer (6).

2. The environmentally friendly, pressure-resistant, and waterproof corrugated cardboard according to claim 1, characterized in that: The corrugated apex angle of the trapezoidal corrugated support layer (1) is sixty degrees.

3. The environmentally friendly, pressure-resistant, and waterproof corrugated cardboard according to claim 1, characterized in that: The bamboo fiber reinforcement layer (2) is made of plain weave bamboo fiber.

4. The environmentally friendly, pressure-resistant, and waterproof corrugated cardboard according to claim 1, characterized in that: The beeswax waterproof layer (3) includes softwood pulp paper (31) and a natural beeswax coating (32) disposed on the surface of the softwood pulp paper (31).

5. The environmentally friendly, pressure-resistant, and waterproof corrugated cardboard according to claim 1, characterized in that: The sulfate wear-resistant layer (4) is sulfate softwood pulp paper.

6. The environmentally friendly, pressure-resistant, and waterproof corrugated cardboard according to claim 1, characterized in that: The inner protective layer (5) is made of virgin wood pulp paper.

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