Waterproof corrugated board
By introducing a combination structure of a waterproof layer, corrugated core, moisture-proof components, and desiccant into corrugated cardboard, the problem of poor waterproofness of corrugated cardboard is solved, achieving high compressive strength and moisture-proof effect, and improving service life and structural stability.
Patent Information
- Application Number
- CN202423163424.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing corrugated cardboard has poor water resistance and is easily affected by moisture, which reduces its compressive strength and service life.
It adopts a combination structure of waterproof layer, corrugated paper core, moisture-proof components and block desiccant. Waterproof and moisture-proof are achieved by staggered arrangement and moisture-absorbing pores. Combined with elastic buffer layer and wear-resistant layer, the compressive strength is improved.
It achieves waterproof and moisture-proof properties for corrugated cardboard, improves compressive strength and service life, and enhances structural stability and wear resistance.
Smart Images

Figure CN223593144U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to corrugated paperboard manufacturing field, concretely relates to a waterproof corrugated paperboard. BACKGROUND
[0002] Corrugated paperboard is a multilayer adhesive body, it is formed by at least one wave-shaped core paper interlayer and one paperboard, has higher mechanical strength, can resist collision and tumble in the carrying process, also is the raw material of corrugated paper box, however, the existing corrugated paperboard is influenced by its material, does not have waterproofness or poor waterproofness, when using, is easily influenced by external environment, especially in the rainy season or humid environment, water vapor will be attached to its surface, thereby leading to the softening phenomenon of corrugated paperboard due to damp, influences its compression resistance and service life, therefore, in order to solve the above problems, it is necessary to develop a waterproof corrugated paperboard with reasonable structure design and high compression strength. SUMMARY
[0003] The utility model discloses a waterproof corrugated paperboard with reasonable structure design and high compression strength to overcome the defects of the prior art.
[0004] The utility model discloses a waterproof corrugated paperboard, including first face paper layer, second face paper layer and inner paper layer, first face paper layer and second face paper layer are parallelly arranged, and the waterproof layer is fixedly bonded between them, and first face paper layer is located at the top of second face paper layer, inner paper layer is located at the top of first face paper layer, and the corrugated paper core and moisture-proof component are fixed between inner paper layer and first face paper layer, the corrugated paper core and moisture-proof component all have a plurality of, and the corrugated paper core and moisture-proof component are staggered in turn, wherein the moisture-proof component includes fixed upper plate, fixed lower plate, support plate and block desiccant, the fixed upper plate is fixedly connected with the lower surface of inner paper layer, the fixed lower plate is located at the directly below of fixed upper plate, and is fixedly connected with the upper surface of first face paper layer, the support plate has two, and is vertically fixedly arranged between two ends of fixed upper plate and fixed lower plate, and the surface of support plate is horizontally provided with a plurality of moisture absorption through -holes, the block desiccant is fixedly filled in the square moisture-proof gap formed by fixed upper plate, fixed lower plate and two support plates.
[0005] The lower surface of the second face paper layer is fixedly bonded with a wear-resistant layer.
[0006] The upper surface of the inner paper layer is fixedly provided with an elastic buffer layer.
[0007] The middle part between the fixed upper plate and the fixed lower plate is provided with a reinforcing plate, the reinforcing plate is integrally arranged in an inclined shape, one end of the reinforcing plate is fixedly connected with the lower end of the inner side surface of the left support plate, and the other end of the reinforcing plate is fixedly connected with the upper end of the inner side surface of the right support plate.
[0008] The utility model discloses an advantageous effect: the utility model discloses through setting fixed upper board, fixed lower board and support board, utilize the square frame that fixed upper board, fixed lower board and two support boards cooperation form, can complete to block dry agent fixed filling placement simultaneously, also can cooperate corrugated paper core and improve the overall compression resistance of the utility model, increase its strength, stability and service life, through setting block dry agent and hygroscopic through -hole, utilize the setting of block dry agent, can through hygroscopic through -hole and the moisture that infiltrated to corrugated paperboard inside is absorbed to cooperate the setting of waterproof layer, play waterproof and moisture -proof effect, avoid because water vapor erosion, lead to corrugated paperboard damp and appear the problem of softening, in general, the utility model has the advantages of reasonable structure design, waterproof and moisture -proof effect is good and compression strength is high. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the front view of the utility model.
[0010] Figure 2 It is the front view of the moistureproof assembly in the utility model.
[0011] In the drawing: 1, first face paper layer;2, second face paper layer;3, inner paper layer;4, waterproof layer;5, corrugated paper core;6, moistureproof assembly;61, fixed upper board;62, fixed lower board;63, support board;64, block dry agent;65, hygroscopic through -hole;66, reinforcing plate;7, wear -resisting layer;8, elastic buffer layer. DETAILED DESCRIPTION
[0012] The utility model will be further explained in connection with the drawings.
[0013] Embodiment: such as Figure 1 , Figure 2As shown, a waterproof corrugated board comprises a first paper layer 1, a second paper layer 2 and a paper layer 3, characterized in that the first paper layer 1 and the second paper layer 2 are arranged in parallel, and a waterproof layer 4 is fixedly bonded between the first paper layer 1 and the second paper layer 2, and the first paper layer 1 is located above the second paper layer 2, the paper layer 3 is located above the first paper layer 1, and a corrugated paper core 5 and a moisture-proof assembly 6 are fixedly arranged between the paper layer 3 and the first paper layer 1, the corrugated paper core 5 and the moisture-proof assembly 6 are both multiple, and the corrugated paper core 5 and the moisture-proof assembly 6 are arranged in turn and staggered, wherein the moisture-proof assembly 6 comprises a fixed upper plate 61, a fixed lower plate 62, a support plate 63 and a block-shaped desiccant 64, the fixed upper plate 61 is fixedly connected with the lower surface of the paper layer 3, the fixed lower plate 62 is located directly below the fixed upper plate 61 and is fixedly connected with the upper surface of the first paper layer 1, the support plate 63 has two and is vertically fixedly arranged at both ends between the fixed upper plate 61 and the fixed lower plate 62, and a plurality of moisture absorption through holes 65 are horizontally arranged on the surface of the support plate 63, and the block-shaped desiccant 64 is fixedly filled in the square moisture-proof gap formed by the fixed upper plate 61, the fixed lower plate 62 and the two support plates 63.
[0014] The lower surface of the second paper layer 2 is fixedly bonded with a wear-resistant layer 7, which can increase the wear resistance of the corrugated board during use and improve the service life; the upper surface of the paper layer 3 is fixedly provided with an elastic buffer layer 8, which can play a certain collision buffering and protection effect on the articles placed in the box; a reinforcing plate 66 is arranged between the fixed upper plate 61 and the fixed lower plate 62, the reinforcing plate 66 is arranged in an inclined shape, one end of the reinforcing plate 66 is fixedly connected with the lower end of the inner side of the left support plate 63, and the other end is fixedly connected with the upper end of the inner side of the right support plate 63, and the reinforcing plate 66 can improve the structural stability and pressure bearing capacity of the square frame formed by the fixed upper plate 61, the fixed lower plate 62 and the two support plates 63.
[0015] The utility model discloses a square frame formed by cooperation of fixed upper plate 61, fixed lower plate 62 and two branch plates 63 can complete the fixed filling placement of block dry agent 64, can also cooperate corrugated paper core 5 to improve the compression resistance of the utility model, increase its strength, stability and service life, in this process, the setting of reinforcing plate 66 can improve the structural stability and pressure bearing capacity of the square frame formed by cooperation of fixed upper plate 61, fixed lower plate 62 and two branch plates 63, the setting of block dry agent 64 can absorb the moisture that penetrates to the inside of corrugated paperboard through moisture absorbing through hole 65, thereby cooperating waterproof layer 4, play waterproof and moistureproof effect, avoid the problem that corrugated paperboard appears softening because of water vapor erosion, moisture; the setting of wear-resistant layer 7 can increase the wear resistance of the utility model during use, improve its service life; the setting of elastic buffer layer 8 can play a certain collision buffering and protection effect to the articles placed in its inside after boxing; in general, the utility model has the advantages of reasonable structure design, good waterproof and moistureproof effect and high compression strength.
[0016] The above examples are only used to illustrate the technical solutions of the utility model and not to limit it. Although the utility model has been described in detail with reference to the above examples, those skilled in the art should understand that the specific embodiments of the utility model can still be modified or replaced equivalently without departing from the spirit and scope of the utility model, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be covered in the scope of the claims of the utility model.
Claims
1. A waterproof corrugated paperboard comprising a first face paper layer (1), a second face paper layer (2) and a liner paper layer (3), characterized in that: The first paper layer (1) and the second paper layer (2) are arranged in parallel, and a waterproof layer (4) is fixedly bonded between the first paper layer (1) and the second paper layer (2), and the first paper layer (1) is located above the second paper layer (2), the back paper layer (3) is located above the first paper layer (1), and the corrugated paper core (5) and the moisture-proof assembly (6) are fixedly arranged between the back paper layer (3) and the first paper layer (1), the corrugated paper core (5) and the moisture-proof assembly (6) are both multiple, and the corrugated paper core (5) and the moisture-proof assembly (6) are arranged in turn and staggered, wherein the moisture-proof assembly (6) comprises a fixed upper plate (61), a fixed lower plate (62), a support plate (63) and a block-shaped desiccant (64), the fixed upper plate (61) is fixedly connected with the lower surface of the back paper layer (3), the fixed lower plate (62) is located directly below the fixed upper plate (61) and is fixedly connected with the upper surface of the first paper layer (1), the support plate (63) has two vertical fixed ends arranged between the fixed upper plate (61) and the fixed lower plate (62), and a plurality of moisture absorption through holes (65) are arranged on the surface of the support plate (63), and the block-shaped desiccant (64) is fixedly filled in the square moisture-proof gap formed by the fixed upper plate (61), the fixed lower plate (62) and the two support plates (63).
2. A waterproof corrugated paperboard as claimed in claim 1, characterized in that: The lower surface of the second paper layer (2) is fixedly bonded with a wear-resistant layer (7).
3. A waterproof corrugated paperboard as claimed in claim 1, wherein: The upper surface of the back paper layer (3) is fixedly provided with an elastic buffer layer (8).
4. A waterproof corrugated paperboard as claimed in claim 1, wherein: A reinforcing plate (66) is arranged in the middle between the fixed upper plate (61) and the fixed lower plate (62), the reinforcing plate (66) is arranged in an inclined shape as a whole, one end of the reinforcing plate (66) is fixedly connected with the lower end of the inner side of the left support plate (63), and the other end is fixedly connected with the upper end of the inner side of the right support plate (63).