Paperboard with double corrugated paper cores

Abstract

The utility model discloses a paperboard with double corrugated paper cores, which relates to the technical field of corrugated paperboards and comprises a first paper core and a second paper core, cavities are arranged in the first paper core and the second paper core, corrugated paperboards are filled in the cavities, hoses are adhered to the outer surfaces of the corrugated paperboards, air holes are arranged in the hoses, and the air holes are communicated with the first paper core and the second paper core. According to the paperboard, by arranging the butt joint grooves and the buffer columns bonded to the interiors of the butt joint grooves, the stability of connection of the first paper core and the second paper core can be improved, meanwhile, the buffer function of the double-paper-core board is increased, the air holes are formed in the hoses, and the elastic paper rolls are bonded to the interiors of the filling grooves, so that the air permeability of the paperboard is improved. The hardness of the first paper core and the second paper core is increased through the reinforcing layer, the moisture-proof layer is arranged, the space between the cavity and the hose is filled with the sponge block, moisture can be effectively absorbed, the paperboard is prevented from being eroded by the moisture for a long time, and the service life of the paperboard is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to corrugated paperboard technical field, concretely relates to a paperboard with double corrugated paper core. BACKGROUND

[0002] The corrugated paper is also called kraft paper and paper skin, is the common material of paper packaging box, it is lighter than wood box, has the hardness, and the size is easy to cut, is used to protect other products packed to be not damaged, the corrugated paperboard is also called corrugated paperboard, is bonded by at least one corrugated paper and one box board paper, has good elasticity and extensibility, is mainly used for manufacturing paper box, the sandwich of paper box and other packaging materials of fragile commodity,

[0003] The application of corrugated paper is more and more extensive, starts to replace some other wooden products in some fields, but the traditional corrugated paper is basically composed of one paper core and paper face plate, leading to insufficient strength, easy deformation and damage, short service life,

[0004] Therefore, the utility model provides a paperboard with double corrugated paper core to make up for and improve the shortcomings of prior art. CONTENT OF UTILITY MODEL

[0005] To solve the above technical problem, the utility model adopts the technical scheme of a paperboard with double corrugated paper core, which comprises a first paper core and a second paper core, and is characterized by the following: cavities are formed in the first paper core and the second paper core, corrugated paperboards are filled in the cavities, hoses are bonded to the outer surfaces of the corrugated paperboards, air holes are formed in the hoses, and sponge blocks are filled between the cavities and the hoses.

[0006] Preferably, butt joints are formed in the proximal surfaces of the first paper core and the second paper core, and buffer columns are bonded in the butt joints.

[0007] Preferably, reinforcing layers are bonded to the distal surfaces of the first paper core and the second paper core, and the reinforcing layers are made of hard paperboards.

[0008] Preferably, a moisture-proof layer is bonded to the outer surface of the reinforcing layer, and a coating paper is bonded to the outer surface of the moisture-proof layer.

[0009] Preferably, PVC filling materials are filled in the air holes, and the air holes are equidistantly bonded below the wave crests of the corrugated paperboards.

[0010] Preferably, filling grooves are equidistantly formed in the side of the reinforcing layer close to the moisture-proof layer, and elastic paper rolls are bonded in the filling grooves.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] The utility model discloses a first paper core and second paper core's similar surface are provided with the butt joint groove and the buffer column of butt joint groove inside adhesion, and the first paper core and second paper core are fixed by the buffer column, can increase the stability of first paper core and second paper core connection, increase the buffer function of double paper core board, and the air hole of hose and the elastic paper roll of filling groove adhesion can improve the paperboard compression resistance and impact resistance, and the reinforcing layer of rigid paperboard material can increase the hardness of first paper core and second paper core, avoid the easy bending of the crease collapse, the setting of dampproof layer, the sponge block filled between cavity and hose can effectively absorb moisture, prevent paperboard from being eroded by moisture for a long time, increase paperboard service life, and the coated paper can increase the paperboard tear resistance and puncture resistance. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of a preferred embodiment shown in the utility model;

[0014] Figure 2 It is the whole structure cross section schematic diagram shown in the utility model;

[0015] Figure 3 It is the Figure 2 The structure schematic diagram of enlarged A in the middle.

[0016] The figure mark is:

[0017] 1, first paper core;2, second paper core;3, corrugated paperboard;4, hose;5, air hole;6, butt joint groove;7, buffer column;8, reinforcing layer;9, dampproof layer;10, coated paper. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Embodiments of the utility model

[0020] Please refer to Figures 1-3As shown, a kind of paperboard with double corrugated paper core, including first paper core 1 and second paper core 2, including: the inside of first paper core 1 and second paper core 2 is provided with cavity, cavity is filled with corrugated paperboard 3, the outer surface of corrugated paperboard 3 is adhered with soft tube 4, the inside of soft tube 4 is provided with air hole 5, and sponge block is filled between cavity and soft tube 4;The similar surface of first paper core 1 and second paper core 2 is provided with butt joint groove 6, and the inside of butt joint groove 6 is adhered with buffer column 7;First paper core 1 and second paper core 2 are pulled and fixed by buffer column 7, can increase the stability of first paper core 1 and second paper core 2 connection, increase the buffer function of double paper core board at the same time, the opposite surface of first paper core 1 and second paper core 2 is adhered with reinforcing layer 8, and reinforcing layer 8 is made of rigid paperboard;The rigidity of first paper core 1 and second paper core 2 is increased by rigid paperboard, to avoid the easy bending of its crease collapse, the outer surface of reinforcing layer 8 is adhered with damp-proof layer 9, and the outer surface of damp-proof layer 9 is adhered with coating paper 10;The sponge block filled between damp-proof layer 9 and cavity and soft tube 4 can effectively absorb moisture, prevent paperboard from being eroded by moisture for a long time, increase the service life of paperboard, and coating paper 10 increases the tear resistance and puncture resistance of paperboard, the inside of air hole 5 is filled with PVC filling material, and air hole 5 is adhered below the wave crest of corrugated paperboard 3 at equal intervals;The filling slot is provided at equal intervals on the side of reinforcing layer 8 close to damp-proof layer 9, and the elastic paper roll is adhered in the filling slot, the air hole 5 on soft tube 4 and the elastic paper roll adhered in the filling slot can improve the compression resistance and impact resistance of paperboard.

[0021] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0022] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A paperboard having a double corrugated paper core comprising a first paper core (1) and a second paper core (2), characterized in that, The utility model relates to a double -layered paper core, including: the inside of first paper core (1) with second paper core (2) all are equipped with cavity, the cavity is filled with corrugated paper board (3), the outer surface of corrugated paper board (3) is bonded with hose (4), the inside of hose (4) is equipped with breathable hole (5), and the cavity is filled with sponge block between hose (4).

2. The paperboard having a double wall paper core according to claim 1, characterized in that, The similar surface of first paper core (1) with second paper core (2) all are equipped with butt joint groove (6), and the inside of butt joint groove (6) is bonded with buffer column (7).

3. The paperboard having a dual wall paper core according to claim 1, wherein, The opposite surface of first paper core (1) with second paper core (2) all are bonded with reinforcing layer (8), and reinforcing layer (8) is made of rigid paperboard.

4. The paperboard having a double wall paper core according to claim 3, characterized in that, The outer surface of reinforcing layer (8) is bonded with moisture-proof layer (9), and the outer surface of moisture-proof layer (9) is bonded with coating paper (10).

5. The paperboard having a dual wall paper core according to claim 1, wherein, The inside of breathable hole (5) is filled with PVC filling material, and breathable hole (5) is equidistantly bonded below the wave crest of corrugated paper board (3).

6. The paperboard having a dual wall paper core according to claim 4, wherein, The side of reinforcing layer (8) close to moisture-proof layer (9) is equidistantly equipped with filling groove, and the filling groove is bonded with elastic paper roll.

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