Anti-deformation multilayer paperboard

Abstract

The utility model discloses an anti-deformation multilayer paperboard which comprises a first paperboard layer, an upper wave-shaped core paper layer, a middle supporting layer, a lower wave-shaped core paper layer and a second paperboard layer are sequentially arranged at the bottom of the first paperboard layer, a plurality of upper grooves distributed at equal intervals are formed between the upper wave-shaped core paper layer and the middle supporting layer, and a plurality of lower grooves distributed at equal intervals are formed between the lower wave-shaped core paper layer and the second paperboard layer. A plurality of upper grooves distributed at equal intervals are formed between the lower wavy core paper layer and the second paperboard layer, upper compression-resistant blocks are arranged in the upper grooves, a plurality of lower grooves distributed at equal intervals are formed between the lower wavy core paper layer and the second paperboard layer, lower compression-resistant blocks are arranged in the lower grooves, and the sections of the upper compression-resistant blocks and the sections of the lower compression-resistant blocks are round. Through the layer-by-layer arrangement, the firmness and deformation resistance of the paperboard are improved, so that the paperboard is not easy to deform after collision, and articles surrounded by the paperboard are protected.

Description

Technical Field

[0001] The utility model relates to a deformation-resistant multi-layer paperboard. Background Art

[0002] Cardboard, also known as board paper, is a thick paper sheet made from various pulps and with fibers interwoven with each other.

[0003] Cardboard is the material used to make cartons, which can be used to package items. Most existing cardboards have simple structures and fewer layers, which makes the cardboard's anti-deformation performance poor. When the cardboard is subjected to a long-term collision or a strong impact, the cardboard is prone to deformation, which in turn affects the protection of the items.

[0004] Therefore, it is necessary to provide a deformation-resistant multi-layer paperboard to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a deformation-resistant multi-layer paperboard to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A deformation-resistant multi-layer paperboard comprises a first paperboard layer, wherein an upper corrugated core paper layer, a middle support layer, a lower corrugated core paper layer and a second paperboard layer are sequentially arranged at the bottom of the first paperboard layer, a plurality of equally spaced upper grooves are formed between the upper corrugated core paper layer and the middle support layer, and upper anti-compression blocks are arranged in each of the upper grooves, a plurality of equally spaced lower grooves are formed between the lower corrugated core paper layer and the second paperboard layer, and lower anti-compression blocks are arranged in each of the lower grooves, and the cross-sections of the upper anti-compression blocks and the lower anti-compression blocks are both circular.

[0008] Preferably, the middle supporting layer comprises an upper connecting paperboard layer, a supporting block and a lower connecting paperboard layer, the upper connecting paperboard layer, the supporting block and the lower connecting paperboard layer are sequentially connected from top to bottom, the cross-section of the supporting block is trapezoidal, a plurality of the supporting blocks are provided, and the plurality of the supporting blocks are evenly distributed between the upper connecting paperboard layer and the lower connecting paperboard layer.

[0009] Preferably, a plurality of the support blocks are arranged in a staggered direction.

[0010] Preferably, a waterproof protective film is provided on the top surface of the first paperboard layer.

[0011] Preferably, the bottom surface of the second paperboard layer is provided with an anti-corrosion protective film.

[0012] The beneficial effects of the utility model are as follows: the first paperboard layer, the upper corrugated core paper layer, the middle support layer, the lower corrugated core paper layer and the second paperboard layer are used to realize the multi-layer structure of the paperboard as a whole; the firmness between the first paperboard layer and the middle support layer is improved by a plurality of upper grooves and upper anti-compression blocks; the firmness between the second paperboard layer and the middle support layer is improved by a plurality of lower grooves and lower anti-compression blocks; the firmness of the middle support layer is ensured by setting the number and position of the upper connecting paperboard layer, the support blocks and the lower connecting paperboard layer; the firmness and deformation resistance of the paperboard are improved by the above-mentioned layer-by-layer setting, so that the paperboard is not easily deformed after a collision, so as to protect the articles surrounded by the paperboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below, but this does not limit the protection scope of the utility model.

[0014] Figure 1 A front cross-sectional view of the entirety of the utility model;

[0015] Figure 2 The utility model provides Figure 1 Enlarged view of point A in the middle.

[0016] Among them, 1. the first paperboard layer; 2. the upper corrugated core paper layer; 3. the middle supporting layer; 31. the upper connecting paperboard layer; 32. the supporting block; 33. the lower connecting paperboard layer; 4. the lower corrugated core paper layer; 5. the second paperboard layer; 6. the upper groove; 7. the upper anti-compression block; 8. the lower groove; 9. the lower anti-compression block; 10. the waterproof protective film; 11. the anti-corrosion protective film. DETAILED DESCRIPTION

[0017] See also Figure 1 to Figure 2 The deformation-resistant multi-layer paperboard shown comprises a first paperboard layer 1, an upper corrugated core paper layer 2, a middle supporting layer 3, a lower corrugated core paper layer 4 and a second paperboard layer 5 are sequentially arranged at the bottom of the first paperboard layer 1, a plurality of equally distributed upper grooves 6 are formed between the upper corrugated core paper layer 2 and the middle supporting layer 3, and upper anti-compression blocks 7 are arranged in each of the upper grooves 6, a plurality of equally distributed lower grooves 8 are formed between the lower corrugated core paper layer 4 and the second paperboard layer 5, and lower anti-compression blocks 9 are arranged in each of the lower grooves 8, and the cross-sections of the upper anti-compression blocks 7 and the lower anti-compression blocks 9 are both circular.

[0018] Furthermore, the middle support layer 3 includes an upper connecting paperboard layer 31, a support block 32 and a lower connecting paperboard layer 33, the upper connecting paperboard layer 31, the support block 32 and the lower connecting paperboard layer 33 are sequentially connected from top to bottom, the cross-section of the support block 32 is trapezoidal, and a plurality of the support blocks 32 are provided, and the plurality of the support blocks 32 are evenly distributed between the upper connecting paperboard layer 31 and the lower connecting paperboard layer 33.

[0019] The shape and distribution position of the support blocks 32 are arranged to ensure the overall stability of the middle support layer 3, so that the middle support layer 3 is not easily collapsed or deformed when the upper connecting paperboard layer 31 and the lower connecting paperboard layer 33 are collided.

[0020] Furthermore, a plurality of the support blocks 32 are arranged in a staggered direction.

[0021] The plurality of support blocks 32 are arranged as described above to improve the stability between the upper connecting paperboard layer 31 and the lower connecting paperboard layer 33 .

[0022] Furthermore, a waterproof protective film 10 is provided on the top surface of the first paperboard layer 1 .

[0023] The waterproof performance of the outer surface of the paperboard is ensured by providing the waterproof protective film 10. The waterproof protective film 10 can be provided as a polymer film, which can effectively prevent external water from penetrating into the inner surface of the paperboard.

[0024] Furthermore, an anti-corrosion protective film 11 is provided on the bottom surface of the second paperboard layer 5 .

[0025] The anti-corrosion protective film 11 can be set as a PET film. The PET film is a packaging film made of polyester film, which has anti-corrosion properties and can ensure the anti-corrosion effect inside the carton.

[0026] When the utility model is used, the first paperboard layer 1, the upper corrugated core paper layer 2, the middle supporting layer 3, the lower corrugated core paper layer 4 and the second paperboard layer 5 are used to realize the multi-layer structure of the paperboard as a whole. The firmness between the first paperboard layer 1 and the middle supporting layer 3 is improved by a plurality of upper grooves 6 and upper anti-compression blocks 7. The firmness between the second paperboard layer 5 and the middle supporting layer 3 is improved by a plurality of lower grooves 8 and lower anti-compression blocks 9. The firmness of the middle supporting layer 3 is ensured by setting the number and position of the upper connecting paperboard layer 31, the supporting blocks 32 and the lower connecting paperboard layer 33. The above-mentioned layer-by-layer setting can improve the firmness and deformation resistance of the paperboard, so that the paperboard is not easily deformed after a collision, so as to protect the articles surrounded by the paperboard.

[0027] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A deformation-resistant multi-layer paperboard, characterized in that: The invention comprises a first paperboard layer, wherein an upper corrugated core paper layer, a middle supporting layer, a lower corrugated core paper layer and a second paperboard layer are sequentially arranged at the bottom of the first paperboard layer, a plurality of upper grooves which are evenly distributed are formed between the upper corrugated core paper layer and the middle supporting layer, and upper anti-compression blocks are arranged in each of the upper grooves, a plurality of lower grooves which are evenly distributed are formed between the lower corrugated core paper layer and the second paperboard layer, and lower anti-compression blocks are arranged in each of the lower grooves, and the cross sections of the upper anti-compression blocks and the lower anti-compression blocks are both circular.

2. The deformation-resistant multi-layer paperboard according to claim 1, characterized in that: The middle support layer includes an upper connecting paperboard layer, a support block and a lower connecting paperboard layer. The upper connecting paperboard layer, the support block and the lower connecting paperboard layer are connected in sequence from top to bottom. The cross-section of the support block is trapezoidal. A plurality of support blocks are provided, and the plurality of support blocks are evenly distributed between the upper connecting paperboard layer and the lower connecting paperboard layer.

3. The anti-deformation multi-layer paperboard according to claim 2, characterized in that: A plurality of the support blocks are arranged in a staggered direction.

4. The anti-deformation multi-layer paperboard according to claim 1, characterized in that: The top surface of the first paperboard layer is provided with a waterproof protective film.

5. The deformation-resistant multi-layer paperboard according to claim 1, characterized in that: The bottom surface of the second paperboard layer is provided with an anti-corrosion protective film.

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