Bamboo skin layer film-coated paperboard

Abstract

The utility model discloses a film-coated paperboard with a bamboo skin layer. The film-coated paperboard comprises a corrugated core layer, a top plate structure, a bonding layer B and a bottom plate layer, the top plate structure is arranged at the top end of the corrugated core layer, natural bamboo grains are arranged on the surface of the bamboo skin film covering layer, attractiveness of the paperboard is enhanced, the inner layer film and the outer layer film cover the surface of the bamboo skin film covering layer, waterproofness and abrasion resistance of the paperboard can be enhanced, the strength and bending resistance of the paperboard can be enhanced through the bamboo skin base layer, and the service life of the paperboard is prolonged. The honeycomb-shaped fiber net is made of glass fiber or polyester fiber net, the tensile strength of the paperboard can be improved, the overall toughness can be enhanced, the layering phenomenon of the paperboard under shear force is prevented, the strength of the paperboard can be enhanced through the bottom plate layer, and the waterproof performance of the paperboard can be further enhanced through the waterproof coating on the surface of the bottom plate. The overall performance of the paperboard can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paperboards, in particular to a bamboo veneer coated paperboard. Background Art

[0002] With the emergence of bamboo veneer, its clear and bright surface texture, uniform color, minimal repair surface and outstanding quality give people a fresh and elegant feeling. With the promotion of bamboo veneer, the number of people who like bamboo veneer is increasing. At present, bamboo veneer is mainly used to decorate the surface of artificial boards, mainly as a decorative veneer.

[0003] Existing bamboo veneer coated paperboards are usually made by combining bamboo veneer with paperboard. Although this improves the aesthetics of the paperboard, the overall strength of the paperboard is low and its performance is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a bamboo veneer coated paperboard to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a bamboo veneer coated cardboard, comprising a corrugated core layer, a top plate structure, an adhesive layer B and a bottom plate layer, wherein one side of the corrugated core layer is connected to the top plate structure, and the other side of the corrugated core layer is connected to the bottom plate layer, and the corrugated core layer and the bottom plate layer are bonded to each other through the adhesive layer B.

[0006] Preferably, the top plate structure includes a bamboo skin layer, a honeycomb fiber mesh and an adhesive layer A, one side of the bamboo skin layer is connected to the honeycomb fiber mesh, and the side of the honeycomb fiber mesh away from the bamboo skin layer is bonded to the corrugated core layer through the adhesive layer A.

[0007] Preferably, the bamboo skin layer includes a bamboo skin film layer and a bamboo skin base layer, one side of the bamboo skin film layer is connected to the bamboo skin base layer, and the side of the bamboo skin base layer away from the bamboo skin film layer is connected to the honeycomb fiber mesh.

[0008] Preferably, the surface of the bamboo skin film layer is covered with a dual-functional film, which is divided into an inner film and an outer film.

[0009] Preferably, the thickness of the bamboo veneer base layer is 0.8-1.2 mm.

[0010] Preferably, the thickness of the corrugated core layer is 3-5 mm.

[0011] Preferably, the bottom plate layer has a thickness of 0.6-1.0 mm and is waterproof coated.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By arranging a top plate structure on the top of the corrugated core layer, the surface of the bamboo veneer covering layer has natural bamboo grain, which enhances the aesthetics of the cardboard. The surface of the bamboo veneer covering layer is covered with an inner layer film and an outer layer film, which can enhance the waterproofness and wear resistance of the cardboard. The bamboo veneer base layer can enhance the strength and bending resistance of the cardboard. The material of the honeycomb fiber mesh is glass fiber or polyester fiber mesh, which can improve the tensile strength of the cardboard, enhance the overall toughness, and prevent the cardboard from delamination when subjected to shear force. The setting of the bottom plate layer can also enhance the strength of the cardboard, and the waterproof coating on the surface of the bottom plate can further enhance the waterproofness of the cardboard, which can improve the overall performance of the cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is an enlarged structural diagram of point A of the present utility model;

[0016] Figure 3 This is a schematic diagram of the top plate structure of the present utility model;

[0017] Figure 4 This is a schematic diagram of the honeycomb fiber mesh structure of the present invention.

[0018] In the figure: corrugated core layer-1, top plate structure-2, adhesive layer B-3, bottom plate layer-4, bamboo skin covering layer-21, bamboo skin base layer-22, honeycomb fiber mesh-23, adhesive layer A-24. DETAILED DESCRIPTION

[0019] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0020] See also Figure 1-Figure 2 The utility model provides a bamboo veneer coated cardboard, comprising a corrugated core layer 1, a top plate structure 2, an adhesive layer B3 and a bottom plate layer 4. The corrugated core layer 1 is mainly composed of bamboo fiber and waste paper pulp, which are mixed in a ratio of 70:30, and the fiber arrangement is optimized through an enzymatic hydrolysis process. The thickness of the corrugated core layer 1 is 3-5 mm. One side of the corrugated core layer 1 is connected to the top plate structure 2, and the other side of the corrugated core layer 1 is connected to the bottom plate layer 4. The bottom plate layer 4 uses recycled cardboard, the thickness of the bottom plate layer 4 is 0.6-1.0 mm, and is waterproof coated to provide strength support and form a complete sandwich structure. The corrugated core layer 1 and the bottom plate layer 4 are bonded by the adhesive layer B3.

[0021] See also Figure 3-Figure 4The utility model provides a bamboo veneer coated paperboard, the top plate structure 2 includes a bamboo veneer layer, a honeycomb fiber mesh 23 and an adhesive layer A24. The honeycomb fiber mesh 23 is connected to one side of the bamboo veneer layer. The material of the honeycomb fiber mesh 23 is glass fiber or polyester fiber mesh, which is used to improve the tensile strength, enhance the overall toughness, and prevent the paperboard from delamination when subjected to shear force. The side of the honeycomb fiber mesh 23 away from the bamboo veneer layer is bonded to the corrugated core layer 1 through the adhesive layer A24.

[0022] The bamboo skin layer includes a bamboo skin film layer 21 and a bamboo skin base layer 22 . The bamboo skin film layer 21 is bonded to the bamboo skin base layer 22 on one side, and the side of the bamboo skin base layer 22 away from the bamboo skin film layer 21 is bonded to the honeycomb fiber mesh 23 .

[0023] Among them, the bamboo skin covering layer 21 is made of bamboo skin that has been degreased by high-temperature steaming to retain the natural bamboo grain, and the surface is covered with a layer of dual-functional film. The dual-functional film is divided into an inner layer and an outer layer. The inner layer is made of polylactic acid (PLA) material with a thickness of 30μm and provides a waterproof function. The outer layer is a wear-resistant and UV-resistant transparent coating (polyurethane modified coating) with a thickness of 10μm.

[0024] The bamboo veneer base layer 22 is made of scraps from bamboo processing, which are sliced, steamed and dried. The thickness of the bamboo veneer base layer 22 is 0.8-1.2 mm, which is used to provide the main strength support and bending resistance. It is a natural material itself, ensuring the environmental protection properties of the cardboard.

[0025] Among them, the adhesive layer A24 and the adhesive layer B3 use plant-based adhesives (such as corn starch glue) or water-based polyurethane adhesives, and the coating thickness is controlled at 50-100 μm. It is green and environmentally friendly, ensuring the firmness of the adhesion and preventing the top plate structure 2 from separating from the corrugated core layer.

[0026] Specifically, by arranging a top plate structure 2 on the top of the corrugated core layer 1, the surface of the bamboo skin covering layer 21 has natural bamboo grain, which enhances the aesthetics of the cardboard, and the dual-functional membrane structure on the surface of the bamboo skin covering layer 21 can enhance the waterproofness and wear resistance of the cardboard. The bamboo skin base layer 22 can enhance the strength and bending resistance of the cardboard. The honeycomb fiber mesh 23 can improve the tensile strength of the cardboard, enhance the overall toughness, and prevent the cardboard from delamination when subjected to shear force. The setting of the bottom plate layer 4 can also enhance the strength of the cardboard and further enhance the waterproofness of the cardboard. The adhesive layer A24 and the adhesive layer B3 can ensure that the overall connection is more firm.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bamboo veneer coated paperboard, characterized by: The invention comprises a corrugated core layer (1), a top plate structure (2), an adhesive layer B (3) and a bottom plate layer (4), wherein one side of the corrugated core layer (1) is connected to the top plate structure (2), and the other side of the corrugated core layer (1) is connected to the bottom plate layer (4), and the corrugated core layer (1) and the bottom plate layer (4) are bonded to each other via the adhesive layer B (3).

2. The bamboo veneer coated paperboard according to claim 1, characterized in that: The top plate structure (2) comprises a bamboo skin layer, a honeycomb fiber net (23) and an adhesive layer A (24); one side of the bamboo skin layer is connected to the honeycomb fiber net (23); and the side of the honeycomb fiber net (23) away from the bamboo skin layer is bonded to the corrugated core layer (1) via the adhesive layer A (24).

3. The bamboo veneer coated paperboard according to claim 2, characterized in that: The bamboo skin layer comprises a bamboo skin film layer (21) and a bamboo skin base layer (22), one side of the bamboo skin film layer (21) is connected to the bamboo skin base layer (22), and the side of the bamboo skin base layer (22) away from the bamboo skin film layer (21) is connected to a honeycomb fiber mesh (23).

4. The bamboo veneer coated paperboard according to claim 3, characterized in that: The surface of the bamboo skin film layer (21) is covered with a double-functional film, which is divided into an inner film and an outer film.

5. The bamboo veneer coated paperboard according to claim 3, characterized in that: The thickness of the bamboo skin base layer (22) is 0.8-1.2 mm.

6. The bamboo veneer coated paperboard according to claim 1, characterized in that: The thickness of the corrugated core layer (1) is 3-5 mm.

7. The bamboo veneer coated paperboard according to claim 1, characterized in that: The bottom plate layer (4) has a thickness of 0.6-1.0 mm and is waterproof coated.

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