Composite corrugated board
By adopting a composite structure in corrugated cardboard, including wavy tile paper and T-shaped support strips, and applying waterproof resin glue on the outside and laying wire mesh inside, the problems of corrugated cardboard collapse when pressure is high, the strength decreases when encountering water and prone to rupture is solved, and higher strength and pressure resistance are achieved.
Patent Information
- Application Number
- CN202421478325.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-06-26
AI Technical Summary
Existing corrugated cardboard is prone to collapse when pressure is high, its strength decreases when it encounters water, and it is prone to rupture when sharp objects hit.
The composite corrugated cardboard structure is adopted, including face paper, inner paper and core paper. Tile paper is set up on the top and bottom of the core paper. T-shaped support strips are arranged in a wavy shape and interlaced. The outside of the face paper and inner paper are coated with waterproof resin glue, and steel wire mesh is laid inside.
It improves the overall strength of corrugated cardboard, prevents softening due to water exposure, and enhances compressive resistance and anti-collision rupture ability.
Smart Images
Figure CN222893434U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of corrugated paperboard production, and in particular relates to a composite corrugated paperboard. Background Art
[0002] Corrugated cardboard, also known as corrugated cardboard, is a multi-layer adhesive body. It is composed of at least one layer of wavy core paper interlayer and one layer of cardboard. It has high mechanical strength and certain compression and drop resistance. Corrugated cardboard is like a series of connected arched doors, supporting each other to form a triangular structure. It can withstand a certain amount of pressure from a single plane, has good light-shielding properties, and will not deteriorate under light.
[0003] The existing corrugated paper has limited compressive strength. When the pressure is high, the internal corrugated paper is prone to collapse, and the strength of the cardboard in the collapsed area is reduced. At the same time, the existing corrugated paper will be soaked when it comes into contact with water, which will also affect the strength. Because the inside is wavy, it is easy to break when a sharp object hits the corrugated hollow area, affecting the overall strength of the corrugated paper. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a composite corrugated paperboard, which can increase the internal strength of the corrugated paper and achieve the effect of waterproofing and puncture-proofing.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A composite corrugated paperboard comprises face paper, lining paper and core paper, wherein the core paper is arranged between the face paper and the lining paper, and the core paper is provided with corrugated paper on the upper and lower sides, the corrugated paper is wavy, and two mutually diverging protrusions of the corrugated paper are respectively bonded to the inner surfaces of the face paper and the lining paper, and support strips are evenly arranged on the inner sides of the face paper and the lining paper, and the support strips are T-shaped, and the upper and lower support strips are staggered, and the support strips comprise transverse plates bonded to the inner surfaces of the face paper and the lining paper, and longitudinal plates are evenly arranged on the side surface of the transverse plate close to the core paper, and thickened paper is evenly arranged on the side surface of the corrugated paper away from the core paper, and the thickened paper is placed at the bottom of the valley of the corrugated paper, and one end of a plurality of longitudinal plates in the same group away from the transverse plate rests on the thickened paper.
[0007] Furthermore, convex strips are evenly arranged on the upper and lower surfaces of the core paper, and a concave mark is arranged between two adjacent convex strips.
[0008] Furthermore, the protrusion of the core paper is placed inside the concave groove, the two sides of the protrusion are respectively in contact with two adjacent protrusion surfaces of the corrugated paper, and the protrusion and the support strips are staggered.
[0009] Furthermore, a steel mesh is laid on the surface of the face paper on one side close to the core paper.
[0010] Furthermore, a waterproof resin adhesive coating is provided on the side of the surface paper and the inner paper facing away from each other.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the paperboard is a double corrugated paperboard, which is composed of face paper, corrugated paper, core paper, corrugated paper and lining paper respectively, and T-shaped support strips are placed in the wave gaps of the corrugated paper to improve the overall strength of the corrugated paper, and at the same time, a waterproof layer is coated on the outside of the face paper and the lining paper to prevent the corrugated paperboard from becoming soft and affecting its strength due to contact with water, and a steel wire mesh is laid inside to prevent the face paper from being broken due to impact by sharp objects. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of a three-dimensional cross-sectional structure of the utility model;
[0013] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged three-dimensional structure of region A;
[0014] Figure 3 This is a schematic diagram of the support bar installation structure of the utility model.
[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0016] 1. Face paper; 2. Backing paper; 3. Waterproof resin adhesive coating; 4. Wire mesh; 5. Corrugated paper; 51. Thickened paper; 6. Core paper; 61. Raised strips; 62. Indentations; 7. Support strips; 71. Horizontal boards; 72. Vertical boards. DETAILED DESCRIPTION
[0017] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.
[0018] Please refer to Figure 1-Figure 3As shown, a composite corrugated paperboard comprises a face paper 1, a lining paper 2 and a core paper 6, wherein the core paper 6 is placed between the face paper 1 and the lining paper 2, and corrugated paper 5 is arranged on the upper and lower sides of the core paper 6, and the corrugated paper 5 is wavy, and the mutually divergent protrusions of the two corrugated papers 5 are respectively bonded to the inner surfaces of the face paper 1 and the lining paper 2 to form a double corrugated paperboard, and the strength of the paperboard is improved by the wavy corrugated paper 5, and the inner sides of the face paper 1 and the lining paper 2 are evenly provided with support strips 7, and the support strips 7 are T-shaped structures, and the upper and lower support strips 7 are staggered, and the support strips 7 include adhesive A transverse plate 71 is combined on the inner surface of the face paper 1 and the lining paper 2, and longitudinal plates 72 are evenly arranged on the surface of the side of the transverse plate 71 close to the core paper 6, and a gap is left between two adjacent longitudinal plates 72 to facilitate the horizontal folding of the paperboard. Thickened paper 51 is evenly arranged on the surface of the corrugated paper 5 away from the core paper 6, and the thickened paper 51 is placed at the bottom of the valley of the corrugated corrugated paper 5. One end of the same group of multiple longitudinal plates 72 away from the transverse plate 71 is against the thickened paper 51. The thickened paper 51 can increase the strength of the corrugated paper 5 to prevent it from being broken due to the squeezing of the longitudinal plates 72 when under pressure.
[0019] Please refer to Figure 2 As shown, convex strips 61 are evenly arranged on the upper and lower surfaces of the core paper 6, and a concave groove 62 is arranged between two adjacent convex strips 61. The convex strips 61 on the upper surface correspond to the concave grooves 62 on the lower surface. The protrusions of the core paper 6 are placed inside the concave grooves 62 to limit the convex peaks of the waves. The two sides of the convex strips 61 are respectively in contact with the two adjacent convex surfaces of the corrugated paper 5 to squeeze the two adjacent convex peaks to improve the strength. The convex strips 61 and the support strips 7 are staggered and evenly distributed to improve the overall strength of the corrugated board.
[0020] Please refer to Figure 2 As shown, a steel mesh 4 is laid on the surface of the face paper 1 close to the core paper 6 to prevent the face paper 1 from being broken due to the impact of external sharp objects.
[0021] Wherein, a waterproof resin adhesive coating 3 is provided on the side of the face paper 1 and the back paper 2 facing away from each other, so as to improve the waterproofness of the inner and outer surfaces of the corrugated cardboard and prevent it from becoming soft due to immersion in water.
[0022] The working principle of the utility model is as follows: the outer surfaces of the face paper 1 and the inner paper 2 are both provided with a waterproof resin adhesive coating 3, which prevents the strength of the corrugated paper from being reduced due to water immersion, and the wire mesh 4 placed on the inner side of the face paper 1 can increase the strength of the outer side of the corrugated paper to prevent damage caused by impact by sharp objects, while the wavy corrugated paper 5 can provide support for the face paper 1 and the inner paper 2, and the staggered convex strips 61 and the indentations 62 can support and limit the corrugated paper 5 to improve the stability of the corrugated paper 5, and the internal T-shaped support strips 7 can improve the pressure resistance of the corrugated board, and the staggered distribution of the longitudinal plates 72 can facilitate the transverse folding of the corrugated board.
[0023] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.
Claims
1. A composite corrugated paperboard, comprising a face paper (1), a lining paper (2) and a core paper (6), characterized in that: The core paper (6) is placed between the face paper (1) and the inner paper (2), and the core paper (6) is provided with corrugated paper (5) on the upper and lower sides, and the corrugated paper (5) is wavy in shape, and two mutually diverging protrusions of the corrugated paper (5) are respectively bonded to the inner surface of the face paper (1) and the inner surface of the inner paper (2), and support strips (7) are evenly arranged on the inner sides of the face paper (1) and the inner surface of the inner paper (2), and the support strips (7) are T-shaped in structure, and the upper and lower support strips (7) are staggered. (7) comprises a transverse plate (71) bonded to the inner surface of the face paper (1) and the inner surface of the back paper (2); a longitudinal plate (72) is evenly arranged on the surface of the transverse plate (71) close to the core paper (6); a thickening paper (51) is evenly arranged on the surface of the corrugated paper (5) away from the core paper (6); the thickening paper (51) is placed at the bottom of the valley of the corrugated corrugated paper (5); and one end of a plurality of longitudinal plates (72) in the same group away from the transverse plate (71) abuts against the thickening paper (51).
2. A composite corrugated paperboard according to claim 1, characterized in that: The upper and lower surfaces of the core paper (6) are evenly provided with convex strips (61), and a concave mark (62) is provided between two adjacent convex strips (61).
3. A composite corrugated paperboard according to claim 2, characterized in that: The protrusion of the core paper (6) is placed inside the indentation (62), the two sides of the protrusion (61) are respectively in contact with two adjacent protrusion surfaces of the corrugated paper (5), and the protrusion (61) and the support strip (7) are staggered.
4. The composite corrugated paperboard according to claim 1, characterized in that: A steel mesh (4) is laid on the surface of the face paper (1) on one side close to the core paper (6).
5. The composite corrugated paperboard according to claim 1, characterized in that: A waterproof resin adhesive coating (3) is provided on the side of the surface paper (1) and the side of the inner paper (2) facing away from each other.