Industrial packaging kraft paper board

Abstract

The utility model discloses an industrial kraft paper board for packaging, which relates to the technical field of packaging and comprises a grey board paperboard and a supporting combination layer, a fireproof composite layer is arranged on the outer surface of the grey board paperboard, and the supporting combination layer is adhered to the outer surface of the grey board paperboard. The supporting combination layer comprises first grid paper, first flame-retardant core paper, first moisture-proof lining paper and first kraft paper, the first grid paper is bonded to the top of the grey board paperboard, the first flame-retardant core paper is bonded to the top of the first grid paper, the first moisture-proof lining paper is bonded to the top of the first flame-retardant core paper, and the first kraft paper is bonded to the top of the second flame-retardant core paper. The first kraft paper is adhered to the top of the first moisture-proof lining paper. According to the industrial packaging kraft paper board, through the arrangement of the supporting combination layer, the hardness, stability and durability of the kraft paper board can be effectively guaranteed in the using process of the device, the thickness, strength and stability of the kraft paper board are improved, the bearing capacity of the overall structure is improved, the kraft paper board is not prone to being damaged, and the flame retardant property is further enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging, and in particular relates to industrial packaging kraft paperboard. Background Art

[0002] Cardboard is a board-like material made of pulp, usually used for packaging, printing and making various paper products. It is made of multiple layers of paper bonded together and has good strength, stability and plasticity.

[0003] At present, when transporting goods, if cartons made of kraft paperboard are bumped or collided with sharp objects, the cartons may be punctured, thereby damaging the goods inside. In the event of a fire, the paperboard will accelerate the fire and cause greater financial losses. Therefore, there is an urgent need for a kraft paperboard with waterproof function, flame retardant properties and high hardness. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the kraft paperboard has no waterproof function, flame retardant performance and high hardness.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: comprising a grey board and a supporting composite layer, wherein the outer surface of the grey board is provided with a fireproof composite layer, wherein the supporting composite layer is bonded to the outer surface of the grey board, wherein the supporting composite layer comprises a first grid paper, a first flame-retardant core paper, a first moisture-proof lining paper and a first kraft paper, wherein the first grid paper is bonded to the top of the grey board, the first flame-retardant core paper is bonded to the top of the first grid paper, the first moisture-proof lining paper is bonded to the top of the first flame-retardant core paper, and the first kraft paper is bonded to the top of the first moisture-proof lining paper;

[0006] The fireproof composite layer includes a first flame-retardant face paper, a first polypropylene (PP) film and a first polyurethane, wherein the first flame-retardant face paper is bonded to the top of the first kraft paper, the first polypropylene (PP) film is bonded to the top of the first flame-retardant face paper, and the first polyurethane is evenly coated on the top of the first polypropylene (PP) film.

[0007] As a preferred embodiment of the utility model, the supporting composite layer also includes a second grid paper, a second flame-retardant core paper, a second moisture-proof lining paper and a second kraft paper, and the second grid paper is bonded to the bottom of the grey board.

[0008] As a preferred embodiment of the present invention, the second flame retardant core paper is bonded to the bottom of the second lattice paper, the second moisture-proof lining paper is bonded to the bottom of the second flame retardant core paper, and the second kraft paper is bonded to the bottom of the second moisture-proof lining paper.

[0009] As a preferred embodiment of the present invention, the thickness of the grey board is 3 mm, the thickness of the first grid paper is 1 mm, the thickness of the first flame retardant core paper is 2 mm, the thickness of the first moisture-proof lining paper is 0.5 mm, and the thickness of the first kraft paper is 1 mm.

[0010] As a preferred embodiment of the present invention, the fireproof composite layer further comprises a second flame retardant face paper, a second polypropylene (PP) film and a second polyurethane, and the second flame retardant face paper is bonded to the bottom of the second kraft paper.

[0011] As a preferred embodiment of the present invention, the second polypropylene (PP) film is bonded to the bottom of the second flame-retardant face paper, and the second polyurethane is evenly coated on the bottom of the second polypropylene (PP) film.

[0012] As a preferred embodiment of the present invention, the thickness of the first flame-retardant face paper is 0.5 mm, the thickness of the first polypropylene (PP) film is 0.3 mm, and the thickness of the first polyurethane is 0.3 mm.

[0013] The beneficial effects of the utility model are:

[0014] The industrial packaging kraft paperboard can effectively ensure the hardness, stability and durability of the paperboard during use by supporting the combination layer arrangement, provide the thickness, strength and stability of the paperboard, increase the bearing capacity of the overall structure, make it not easy to be damaged, and further enhance the flame retardant performance.

[0015] The industrial packaging kraft paperboard can effectively achieve waterproof performance during use by setting a fireproof composite layer, effectively prevent combustion, and increase the service life of the paperboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure provided by the example of the utility model;

[0017] Figure 2 It is a partial exploded view of the supporting composite layer provided by the example of the utility model;

[0018] Figure 3 It is a partial exploded view of the fireproof composite layer provided by the example of the utility model;

[0019] Figure 4 It is a cross-sectional view of the overall structure provided by an example of the utility model.

[0020] Markings in the figure: 1. Grey board; 2. Support combination layer; 201. First grid paper; 202. First flame-retardant core paper; 203. First moisture-proof lining paper; 204. First kraft paper; 205. Second grid paper; 206. Second flame-retardant core paper; 207. Second moisture-proof lining paper; 208. Second kraft paper; 3. Fireproof composite layer; 301. First flame-retardant face paper; 302. First polypropylene film; 303. First polyurethane; 304. Second flame-retardant face paper; 305. Second polypropylene film; 306. Second polyurethane. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred examples. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] like Figures 1 to 3 As shown, the utility model provides an industrial packaging kraft paperboard, comprising a grey board 1 and a supporting composite layer 2, wherein the outer surface of the grey board 1 is provided with a fireproof composite layer 3, the supporting composite layer 2 is bonded to the outer surface of the grey board 1, the supporting composite layer 2 comprises a first grid paper 201, a first flame-retardant core paper 202, a first moisture-proof lining paper 203 and a first kraft paper 204, the first grid paper 201 is bonded to the top of the grey board 1, the first flame-retardant core paper 202 is bonded to the top of the first grid paper 201, the first moisture-proof lining paper 203 is bonded to the top of the first flame-retardant core paper 202, and the first kraft paper 204 is bonded to the top of the first moisture-proof lining paper 203;

[0023] The fireproof composite layer 3 includes a first flame-retardant face paper 301, a first polypropylene (PP) film 302 and a first polyurethane 303. The first flame-retardant face paper 301 is bonded to the top of the first kraft paper 204, the first polypropylene (PP) film 302 is bonded to the top of the first flame-retardant face paper 301, and the first polyurethane 303 is evenly coated on the top of the first polypropylene (PP) film 302.

[0024] refer to Figure 1 , Figure 2 and Figure 3The supporting composite layer 2 also includes a second grid paper 205, a second flame retardant core paper 206, a second moisture-proof lining paper 207 and a second kraft paper 208. The second grid paper 205 is bonded to the bottom of the gray board 1, the second flame retardant core paper 206 is bonded to the bottom of the second grid paper 205, the second moisture-proof lining paper 207 is bonded to the bottom of the second flame retardant core paper 206, and the second kraft paper 208 is bonded to the bottom of the second moisture-proof lining paper 207. The thickness of the gray board 1 is 3 mm, the thickness of the first grid paper 201 is 1 mm, the thickness of the first flame retardant core paper 202 is 2 mm, the thickness of the first moisture-proof lining paper 203 is 0.5 mm, and the thickness of the first kraft paper 204 is 1 mm.

[0025] The above scheme is adopted: by setting the grey board 1, the bearing capacity of the whole structure can be increased, the overall hardness can be increased and it is not easy to be damaged; by setting the first moisture-proof lining paper 203, water penetration can be prevented; by setting the first kraft paper 204, it can have a certain degree of willfulness and is not easy to be damaged, thereby increasing the strength and cushioning performance of the board.

[0026] refer to Figure 2 , Figure 3 and Figure 4 The fireproof composite layer 3 also includes a second flame retardant paper 304, a second polypropylene (PP) film 305 and a second polyurethane 306. The second flame retardant paper 304 is bonded to the bottom of the second kraft paper 208, the second polypropylene (PP) film 305 is bonded to the bottom of the second flame retardant paper 304, and the second polyurethane 306 is evenly applied to the bottom of the second polypropylene (PP) film 305. The thickness of the first flame retardant paper 301 is 0.5 mm, the thickness of the first polypropylene (PP) film 302 is 0.3 mm, and the thickness of the first polyurethane 303 is 0.3 mm.

[0027] By adopting the above scheme: by setting the first polypropylene (PP) film 302, it can have good oil-proof and waterproof properties, by setting the first polyurethane 303, the oil-proof and waterproof properties of the paperboard can be enhanced, and by setting the second flame-retardant face paper 304, the flame retardancy of the paperboard can be enhanced.

[0028] In summary: by setting the supporting combined layer 2, the device can effectively ensure the hardness, stability and durability of the cardboard during use, provide the thickness, strength and stability of the cardboard, increase the bearing capacity of the overall structure, make it not easy to be damaged, and further enhance the flame retardant performance. By setting the fireproof composite layer 3, the device can be effectively waterproof during use, which can effectively prevent combustion and enhance the service life of the cardboard.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or still includes elements that are inherent to such process, method, article or device;

[0030] Although examples of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these examples without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents;

[0031] The above description only describes the specific implementation mode of the utility model. Various examples do not limit the implementation content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation modes described previously after reading the description without departing from the implementation nature and scope of the utility model.

Claims

1. An industrial packaging kraft paperboard, comprising a grey board (1) and a supporting composite layer (2), wherein the outer surface of the grey board (1) is provided with a fireproof composite layer (3), characterized in that: The supporting composite layer (2) is bonded to the outer surface of the grey board (1), and the supporting composite layer (2) comprises a first grid paper (201), a first flame retardant core paper (202), a first moisture-proof lining paper (203) and a first kraft paper (204); the first grid paper (201) is bonded to the top of the grey board (1), the first flame retardant core paper (202) is bonded to the top of the first grid paper (201), the first moisture-proof lining paper (203) is bonded to the top of the first flame retardant core paper (202), and the first kraft paper (204) is bonded to the top of the first moisture-proof lining paper (203); The fireproof composite layer (3) comprises a first flame retardant paper (301), a first polypropylene film (302) and a first polyurethane (303), wherein the first flame retardant paper (301) is bonded to the top of the first kraft paper (204), the first polypropylene film (302) is bonded to the top of the first flame retardant paper (301), and the first polyurethane (303) is evenly coated on the top of the first polypropylene film (302).

2. The industrial packaging kraft paperboard according to claim 1, characterized in that: The supporting composite layer (2) further comprises a second grid paper (205), a second flame-retardant core paper (206), a second moisture-proof lining paper (207) and a second kraft paper (208), wherein the second grid paper (205) is bonded to the bottom of the grey board (1).

3. The industrial packaging kraft paperboard according to claim 2, characterized in that: The second flame retardant core paper (206) is bonded to the bottom of the second grid paper (205), the second moisture-proof lining paper (207) is bonded to the bottom of the second flame retardant core paper (206), and the second kraft paper (208) is bonded to the bottom of the second moisture-proof lining paper (207).

4. The industrial packaging kraft paperboard according to claim 1, characterized in that: The thickness of the grey board (1) is 3 mm, the thickness of the first grid paper (201) is 1 mm, the thickness of the first flame retardant core paper (202) is 2 mm, the thickness of the first moisture-proof lining paper (203) is 0.5 mm, and the thickness of the first kraft paper (204) is 1 mm.

5. The industrial packaging kraft paperboard according to claim 1, characterized in that: The fireproof composite layer (3) further comprises a second flame retardant face paper (304), a second polypropylene film (305) and a second polyurethane (306), wherein the second flame retardant face paper (304) is bonded to the bottom of the second kraft paper (208).

6. The industrial packaging kraft paperboard according to claim 5, characterized in that: The second polypropylene film (305) is bonded to the bottom of the second flame-retardant paper (304), and the second polyurethane (306) is evenly coated on the bottom of the second polypropylene film (305).

7. The industrial packaging kraft paperboard according to claim 1, characterized in that: The thickness of the first flame-retardant paper (301) is 0.5 mm, the thickness of the first polypropylene film (302) is 0.3 mm, and the thickness of the first polyurethane (303) is 0.3 mm.

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