Laminated mirror surface paperboard with strong edge durability

Abstract

The utility model discloses a laminated mirror surface paperboard with strong edge durability. The laminated mirror surface paperboard comprises a paperboard main body, a first edge reinforcing structure, a second edge reinforcing structure and a joint block, the two first edge reinforcing structures and the two second edge reinforcing structures are connected to the long edges and the short edges of the two sides of the paperboard body respectively, the first edge reinforcing structures and the second edge reinforcing structures are connected through the joint blocks, and the inner sides of the joint blocks are attached to the paperboard body. The first edge reinforcing structure and the second edge reinforcing structure are the same in structural composition, and a frame part with a reinforcing function is designed on the peripheral edge of the paperboard body, so that the overall structural strength is improved, and deformation and abrasion of the edges are reduced; and the first edge reinforcing structure and the second edge reinforcing structure are connected with the paperboard main body in a staggered and stacked manner, so that the friction force is increased, the paperboard main body is not easy to separate, and the overall edge durability is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of mirror surface cardboard, in particular to a laminated mirror surface cardboard with strong edge durability. Background Art

[0002] Laminated mirror cardboard is a cardboard with a coated surface. It has a smooth and bright mirror effect and is often used in the production of high-end printed materials such as cards and leaflets.

[0003] At present, China's patent application number: CN201920943837.8 discloses a water-resistant laminated mirror paperboard, including a paperboard body, an upper surface isolation structure and a lower surface isolation structure. The central layer of the paperboard body is filled with a filling layer, and a first mirror paperboard layer is adhered to the adhesive layer on the upper end surface of the filling layer, a second mirror paperboard layer is adhered to the adhesive layer on the lower end surface of the filling layer, and an upper surface isolation structure is provided on the upper end surface of the first mirror paperboard layer.

[0004] However, the edges of the prior art laminated mirror paperboard have low structural strength and relatively poor durability. The edges are easily damaged or worn during use, which reduces the service life of the paperboard. After the edges of the paperboard are damaged, the paperboard needs to be repaired or replaced, wasting a lot of maintenance costs and time. Utility Model Content

[0005] The utility model aims to provide a laminated mirror paperboard with strong edge durability to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laminated mirror paperboard with strong edge durability, comprising a paperboard main body, a first edge reinforcement structure, a second edge reinforcement structure and a joining block, the first edge reinforcement structure is connected to the long sides of both sides of the paperboard main body, the second edge reinforcement structure is connected to the short sides of both sides of the paperboard main body, the first edge reinforcement structure and the second edge reinforcement structure are connected by a joining block, and the inner side of the joining block is fitted with the paperboard main body, the paperboard main body comprises a surface layer, a reinforcement layer, a core material layer, a heat insulation layer and an inner protective layer which are sequentially arranged from top to bottom by adhesive bonding, the outer periphery of the connection between the surface layer and the reinforcement layer, the reinforcement layer and the core material layer, and the heat insulation layer and the inner protective layer are all provided with recesses, and the first edge reinforcement structure and the second edge reinforcement structure are inserted and fitted to the inner side of the recesses.

[0007] Preferably, a waterproof and antifouling film is coated on the surface layer.

[0008] Preferably, the reinforcement layer is a honeycomb structure for improving strength and compression resistance.

[0009] Preferably, no less than three magnetic attraction sheets are arranged on the bottom side of the inner protective layer, and the magnetic attraction sheets are equidistantly distributed.

[0010] Preferably, the first edge reinforcement structure and the second edge reinforcement structure have the same structural composition.

[0011] Preferably, the first edge reinforcement structure includes a strip column adhered to the side of the paper card body, an arc groove opened in the middle of the left side of the strip column, a groove opened in the middle of the upper and lower sides of the strip column, a connecting block embedded in the right side of the strip column, and an insert embedded in the right side of the connecting block, and the right side of the insert is inserted and connected to the inside of the paper card body.

[0012] Preferably, three inserts are provided and are arranged equidistantly in the longitudinal direction, and the three inserts are respectively inserted into the depressions between the surface layer and the reinforcement layer, the reinforcement layer and the core material layer, and the heat insulation layer and the inner protective layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is respectively connected with two first edge reinforcement structures and two second edge reinforcement structures at the long sides and short sides of the paper card body, the first edge reinforcement structure and the second edge reinforcement structure are connected by a joint block, and the inner side of the joint block is in contact with the paper card body, the first edge reinforcement structure and the second edge reinforcement structure have the same structural composition, and a frame part for reinforcement is designed at the outer peripheral edge of the paper card body to improve the overall structural strength and reduce deformation and wear of the edge, and the first edge reinforcement structure and the second edge reinforcement structure are connected to the paper card body in a staggered and stacked manner, which increases friction and makes it difficult to separate, thereby improving the overall edge durability to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic structural diagram of the connection between the first edge reinforcement structure and the joint block of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the connection between the paperboard main body and the first edge reinforcement structure of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the first edge reinforcement structure of the utility model.

[0019] In the figure: cardboard body -1, first edge reinforcement structure -2, second edge reinforcement structure -3, joining block -4, surface layer -11, reinforcement layer -12, core material layer -13, heat insulation layer -14, inner protective layer -15, magnetic sheet -16, strip column -21, arc groove -22, groove -23, connecting block -24, insert -25. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] See also Figure 1 and Figure 2 The utility model provides a laminated mirror paperboard with strong edge durability, comprising a paperboard body 1, a first edge reinforcement structure 2, a second edge reinforcement structure 3 and a joint block 4, the first edge reinforcement structure 2 is connected to the long sides of the paperboard body 1, the second edge reinforcement structure 3 is connected to the short sides of the paperboard body 1, the first edge reinforcement structure 2 and the second edge reinforcement structure 3 are connected by the joint block 4, and the inner side of the joint block 4 is in contact with the paperboard body 1, the first edge reinforcement structure 2 and the second edge reinforcement structure 3 have the same structural composition, a frame part for reinforcement is designed at the outer peripheral edge of the paperboard body 1, so as to improve the overall structural strength and reduce the deformation and wear of the edge, and the first edge reinforcement structure 2 and the second edge reinforcement structure 3 are connected to the paperboard body 1 in a staggered and stacked manner, which increases the friction force and makes it difficult to separate, thereby improving the overall edge durability to a certain extent.

[0022] See also Figure 1 and Figure 3 The utility model provides a composite mirror paper with strong edge durability. The paperboard body 1 includes a surface layer 11, a reinforcement layer 12, a core material layer 13, a heat insulation layer 14 and an inner protective layer 15 which are sequentially bonded by adhesive from top to bottom. The heat insulation layer 14 is used to reduce heat conduction, and the inner protective layer 15 provides additional protection to increase the durability and service life of the paperboard as a whole. A waterproof and antifouling film is coated on the surface layer 11 to improve the waterproof and antifouling effect of the surface layer 11. The reinforcement layer 12 is a honeycomb The structure is used to improve the strength and compression resistance. Recesses are provided on the periphery of the connections between the surface layer 11 and the reinforcement layer 12, the reinforcement layer 12 and the core layer 13, and the insulation layer 14 and the inner protective layer 15. The first edge reinforcement structure 2 and the second edge reinforcement structure 3 are inserted and fitted inside the recesses to ensure the stability and firmness of the connection after fitting. No less than three magnetic sheets 16 are provided on the bottom side of the inner protective layer 15, and the magnetic sheets 16 are equidistantly distributed, so they can be connected or combined with other magnetic items to increase practicality.

[0023] See also Figure 3 and Figure 4The utility model provides a laminated mirror paperboard with strong edge durability. The first edge reinforcement structure 2 includes a strip column 21 attached to the side of the paperboard body 1, an arc groove 22 opened in the middle of the left side of the strip column 21, a groove 23 opened in the middle of the upper and lower sides of the strip column 21, a connecting block 24 embedded in the right side of the inside of the strip column 21, and an insert 25 embedded in the right side of the inside of the connecting block 24. The design of the arc groove 22 and the groove 23 can improve the overall structural strength and reduce the deformation and wear of the edge. The insert 25 is inserted and connected to the inside of the paperboard body 1 on the right side. Three inserts 25 are provided and are arranged equidistantly in the longitudinal direction. The three inserts 25 are respectively inserted and attached to the depressions between the surface layer 11 and the reinforcing layer 12, the reinforcing layer 12 and the core material layer 13, and the heat insulation layer 14 and the inner protective layer 15 to improve the friction between them and ensure the firmness of the connection.

[0024] The utility model discloses a laminated mirror paper with strong edge durability, which comprises a paper body 1, a surface layer 11, a reinforcement layer 12, a core material layer 13, a heat insulation layer 14 and an inner protective layer 15. The heat insulation layer 14 is used to reduce heat conduction, and the inner protective layer 15 provides additional protection to increase the durability and service life of the paper as a whole. A waterproof and antifouling film is coated on the surface layer 11 to improve the waterproof and antifouling effect of the surface layer 11. The reinforcement layer 12 is a honeycomb structure for improving strength and compressive strength, and the inner protective layer 15 is provided with a waterproof and antifouling film. A magnetic sheet 16 is provided on the bottom side of the protective layer 15, through which it can be connected or combined with other magnetic items to increase practicality, and three inserts 25 are inserted into the depressions between the surface layer 11 and the reinforcement layer 12, the reinforcement layer 12 and the core layer 13, and the insulation layer 14 and the inner protective layer 15, and then bonded with glue to make the strip column 21 stably fit and contact the outside of the cardboard body 1, and through the arc groove 22 and the groove 23 on the strip column 21, the overall structural strength is improved and the deformation and wear of the edge are reduced.

[0025] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A laminated mirror paperboard with strong edge durability, characterized by: The structure comprises a paperboard body (1), a first edge reinforcement structure (2), a second edge reinforcement structure (3) and a joint block (4); the first edge reinforcement structure (2) is connected to both long sides of the paperboard body (1); the second edge reinforcement structure (3) is connected to both short sides of the paperboard body (1); the first edge reinforcement structure (2) and the second edge reinforcement structure (3) are connected via the joint block (4); and the inner side of the joint block (4) is in contact with the paperboard body (1). The cardboard body (1) comprises a surface layer (11), a reinforcement layer (12), a core material layer (13), a heat insulating layer (14) and an inner protective layer (15) which are bonded together from top to bottom in sequence by adhesive. Concave portions are provided at the peripheries of the connections between the surface layer (11) and the reinforcement layer (12), between the reinforcement layer (12) and the core material layer (13), and between the heat insulating layer (14) and the inner protective layer (15). The first edge reinforcement structure (2) and the second edge reinforcement structure (3) are inserted and bonded to the inner sides of the concave portions.

2. The laminated mirror paperboard with strong edge durability according to claim 1, characterized in that: A waterproof and anti-fouling film is coated on the surface layer (11).

3. The laminated mirror paperboard with strong edge durability according to claim 1, characterized in that: The reinforcement layer (12) is a honeycomb structure, and is used to improve strength and compression resistance.

4. The laminated mirror paperboard with strong edge durability according to claim 1, characterized in that: No less than three magnetic attraction sheets (16) are arranged on the inner bottom side of the inner protective layer (15), and the magnetic attraction sheets (16) are distributed at equal distances.

5. The laminated mirror paperboard with strong edge durability according to claim 1, characterized in that: The first edge reinforcement structure (2) and the second edge reinforcement structure (3) have the same structural composition.

6. The laminated mirror paperboard with strong edge durability according to claim 1, characterized in that: The first edge reinforcement structure (2) comprises a strip column (21) attached to the side of the cardboard body (1), an arc-shaped groove (22) provided in the middle of the left side of the strip column (21), a groove (23) provided in the middle of the upper and lower sides of the strip column (21), a connecting block (24) embedded in the right side of the inside of the strip column (21), and an insert (25) embedded in the right side of the inside of the connecting block (24), wherein the right side of the insert (25) is inserted and connected to the inside of the cardboard body (1).

7. The laminated mirror paperboard with strong edge durability according to claim 6, characterized in that: The inserts (25) are provided in three numbers and are arranged equidistantly in the longitudinal direction, and the three inserts (25) are respectively inserted into and attached to the depressions between the surface layer (11) and the reinforcement layer (12), the reinforcement layer (12) and the core material layer (13), and the heat insulation layer (14) and the inner protective layer (15).

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