CN212579321U - High-strength moisture-regain-resistant paperboard - Google Patents

Abstract

The utility model discloses an anti moisture regain cardboard of high strength, its technical scheme main points are: the paper board comprises a paper board body, wherein the middle layer of the paper board body is a core paper layer, corrugated paper board layers are fixedly arranged on two sides of the core paper layer, the corrugated paper board layers are wavy, supporting tubes are fixedly arranged in wave crests of the corrugated paper board layers, and drying agents are filled in the supporting tubes; a flame-retardant layer is fixedly arranged on one side of the corrugated paperboard layer, which is different from the side in contact with the core paperboard layer, a metal mesh layer is fixedly arranged on one side of the flame-retardant layer, which is different from the side in contact with the corrugated paperboard layer, a kraft layer is fixedly arranged on one side of the metal mesh layer, which is different from the side in contact with the flame-retardant layer, a water-blocking layer is fixedly arranged on the outer side surface of the kraft layer, and a wrapping layer; the utility model discloses have resistance to compression, waterproof moisture regain and fire-retardant performance.

Description

High-strength moisture-regain-resistant paperboard

Technical Field

The utility model relates to a cardboard technical field, in particular to high strength moisture regain resistant cardboard.

Background

The corrugated board is an essential article in life, the existing corrugated board is usually a corrugated board, and the corrugated board is a multi-layer adhesive body and at least comprises a corrugated paper core layer and a paper board layer. Corrugated container board has very high mechanical strength, can withstand the collision among the cargo handling and fall, mainly used makes the core of carton, carton and the extranal packing of breakable commodity. Corrugated board is little influenced by temperature, and shading performance is good, and generally influenced by humidity also less, therefore corrugated board is widely used in various product packaging. Even can be used for replacing a part of rough, heavy and wood resource-consuming wooden box package in some cases, thereby reducing the cost.

But because the corrugated core has a single structure, the existing corrugated board has poor waterproof and moistureproof performance, poor compression resistance, easy deformation and poor flame retardant property.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a high strength moisture regain resistant cardboard to solve the problem mentioned in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a high-strength moisture regain resistant paperboard comprises a paperboard body, wherein a middle layer of the paperboard body is a core paper layer, corrugated paperboard layers are fixedly arranged on two sides of the core paper layer and are wavy, supporting tubes are fixedly arranged in wave crests of the corrugated paperboard layers, and drying agents are filled in the supporting tubes; the corrugated paperboard is characterized in that a flame-retardant layer is fixedly arranged on one side, different from the side in contact with the core paperboard, of the corrugated paperboard layer, a metal mesh layer is fixedly arranged on one side, different from the side in contact with the corrugated paperboard, of the flame-retardant layer, a kraft paper layer is fixedly arranged on one side, different from the side in contact with the flame-retardant layer, a water-blocking layer is fixedly arranged on the outer side surface of the kraft paper layer, and a binding layer is fixedly arranged on the periphery of the paperboard body.

Further, the diameter of the supporting tube is equal to the vertical distance from the peak of the corrugated paperboard layer to the core paper layer.

Through above technical scheme, the corrugated container board layer can be supported completely to the stay tube, has improved corrugated container board's structural strength, has further improved the compressive property of cardboard body.

Further, the flame-retardant layer is inorganic filler flame-retardant polypropylene.

Through the technical scheme, the flame-retardant layer has a good flame-retardant effect, and the inorganic filler flame-retardant polypropylene has the effect of inhibiting smoke dust.

Further, the drying agent is silica gel particles.

Through above technical scheme, silica gel has open porous structure, and the adsorptivity is strong, can adsorb multiple material, and water absorption is strong and physical properties is stable.

Further, the water-resistant layer is a PVC polymer film.

Through the technical scheme, the PVC polymeric membrane has excellent water resistance effect, light weight and mature and common product technology, and reduces the cost of raw materials.

Further, the layer of borduring is waterproof kraft paper, just the lateral surface on layer of borduring is the arcwall face.

Through above technical scheme, waterproof craft paper can increase the waterproof performance of cardboard body, and the lateral surface on layer of borduring is the arcwall face, has increased the anti extruded ability of layer of borduring, further improves the structural strength of cardboard body.

Further, the metal mesh layer is a stainless steel mesh.

Through above technical scheme, the metal mesh layer can increase rust-resistant ability, simultaneously because the antitorque ability of stainless steel net is better, so improved the resistance to deformation ability of cardboard body.

To sum up, the utility model discloses mainly have following beneficial effect:

1. corrugated paper layers are fixedly arranged on two sides of the core paper layer, the corrugated paper layers are wavy, supporting pipes are fixedly arranged in wave crests of the corrugated paper layers, and the corrugated paper layers and the supporting pipes improve the pressure resistance of the paperboard body; the metal mesh layer can increase the anti-distortion capability of the paperboard body and prevent the paperboard from deforming;

2. the upper surface and the lower surface of the paperboard body are provided with water-blocking layers, so that external water can be prevented from entering the paperboard body, the supporting tubes are filled with drying agents, a small part of water vapor permeating from the air in the paperboard body can be absorbed, and the waterproof and moistureproof performances of the paperboard body are improved;

3. the inside of cardboard body is provided with fire-retardant layer, can improve the fire behaviour of cardboard body.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

reference numerals: 1. a core paper layer; 2. a corrugated paperboard layer; 3. supporting a tube; 4. a desiccant; 5. a flame retardant layer; 6. a metal mesh layer; 7. a kraft layer; 8. a water resistant layer; 9. a paperboard body; 10. and (6) a binding layer.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments, and all embodiments may be used in combination with each other.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example 1

Referring to fig. 1, a high-strength moisture regain-resistant paperboard comprises a paperboard body 9, wherein a middle layer of the paperboard body 9 is a core paper layer 1, corrugated paperboard layers 2 are fixedly arranged on two sides of the core paper layer 1, and the corrugated paperboard layers 2 are wavy, so that the pressure resistance of the corrugated paperboard layers 2 can be increased; the supporting tubes 3 are fixedly arranged in the wave crests of the corrugated paperboard layer 2, and the supporting tubes 3 support the cavities of the wave crests of the corrugated paperboard layer 2, so that the pressure resistance of the corrugated paperboard layer 2 is further improved; the drying agent 4 is filled in the supporting tube 3, and the drying agent 4 can absorb water vapor permeating into the paperboard body 9 from air, so that the moisture regain resistance of the paperboard body 9 is improved; the side of the corrugated paperboard layer 2, which is different from the side in contact with the core paper layer 1, is fixedly provided with the flame-retardant layer 5, and the flame-retardant layer 5 can improve the flame-retardant property of the paperboard body 9, prevent the fire from spreading and improve the safety performance; the side of the flame-retardant layer 5, which is different from the side in contact with the corrugated paperboard layer 2, is fixedly provided with the metal mesh layer 6, so that the anti-distortion capability of the paperboard body 9 can be increased, and the deformation of the paperboard body 9 is prevented; a kraft paper layer 7 is fixedly arranged on one side of the metal mesh layer 6, which is different from the side which is in contact with the flame-retardant layer 5, a water-blocking layer 8 is fixedly arranged on the outer side surface of the kraft paper layer 7, and the water-blocking layer 8 can prevent external water from entering the interior of the paperboard body 9, so that the waterproof performance of the paperboard body 9 is further improved; cardboard body 9 is fixed all around and is provided with bordure layer 10, and bordure layer 10 can play the sealed effect to cardboard body 9 on the one hand, has improved cardboard body 9's waterproof performance, and on the other hand bordure layer 10 can cardboard body 9's anti extrusion ability, prevents that cardboard body 9 warp.

Referring to fig. 1, the diameter of the support tube 3 is equal to the vertical distance from the peak of the wave crest of the corrugated board layer 2 to the core paper layer 1, and the support tube 3 can completely support the corrugated board layer 2, thereby improving the structural strength of the corrugated board layer 2 and further improving the pressure resistance of the paperboard body 9.

Referring to fig. 1, the flame retardant layer 5 is made of flame retardant polypropylene with an inorganic filler, the flame retardant layer 5 has a good flame retardant effect, and the flame retardant polypropylene with the inorganic filler has a smoke suppression effect.

Referring to fig. 1, the desiccant 4 is silica gel particles, and silica gel has an open porous structure, strong adsorbability, strong water absorption performance and stable physical properties, and can adsorb various substances.

Referring to fig. 1, the water-blocking layer 8 is a PVC polymer film, which has excellent water-blocking effect, light weight, mature and common product technology, and reduces the raw material cost.

Referring to fig. 1, the layer of borduring 10 is waterproof kraft paper, and the lateral surface of layer of borduring 10 is the arcwall face, and waterproof kraft paper can increase the waterproof performance of cardboard body 9, and the lateral surface of layer of borduring 10 is the arcwall face, has increased the anti extruded ability of layer of borduring 10, further improves the structural strength of cardboard body 9.

Referring to fig. 1, the metal mesh layer 6 is a stainless steel mesh layer, the metal mesh layer 6 can increase the antirust capacity, and the anti-torsion capacity of the stainless steel mesh layer is better, so that the deformation resistance of the paperboard body 9 is improved.

In summary, the following steps: corrugated paperboard layers 2 are fixedly arranged on two sides of the core paper layer 1, the corrugated paperboard layers 2 are wavy, supporting pipes 3 are fixedly arranged in wave crests of the corrugated paperboard layers 2, and the corrugated paperboard layers 2 and the supporting pipes 3 improve the pressure resistance of the paperboard body 9; the metal mesh layer 6 can increase the distortion resistance of the paperboard body 9 and prevent the paperboard body 9 from deforming; the upper surface and the lower surface of the paperboard body 9 are provided with the water-blocking layers 8, so that external water can be prevented from entering the paperboard body 9, the supporting tubes 3 are filled with the drying agents 4, a small part of water vapor permeating from the air in the paperboard body 9 can be absorbed, and the waterproof and moistureproof performance of the paperboard body 9 is improved; the inside of cardboard body 9 is provided with fire-retardant layer 5, can improve cardboard body 9's fire behaviour.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A high strength moisture regain resistant paperboard comprising a paperboard body (9), characterized in that: the middle layer of the paperboard body (9) is a core paper layer (1), corrugated paperboard layers (2) are fixedly arranged on two sides of the core paper layer (1), the corrugated paperboard layers (2) are wavy, supporting tubes (3) are fixedly arranged in wave crests of the corrugated paperboard layers (2), and drying agents (4) are filled in the supporting tubes (3); the corrugated board layer (2) is different from one side in contact with the core paper layer (1) and is fixedly provided with a flame-retardant layer (5), the flame-retardant layer (5) is different from one side in contact with the corrugated board layer (2) and is fixedly provided with a metal mesh layer (6), the metal mesh layer (6) is different from one side in contact with the flame-retardant layer (5) and is fixedly provided with a kraft layer (7), the outer side surface of the kraft layer (7) is fixedly provided with a water-blocking layer (8), and the periphery of the paperboard body (9) is fixedly provided with a bound layer (10).

2. The high strength moisture regain resistant paperboard of claim 1 wherein: the diameter of the supporting tube (3) is equal to the vertical distance from the peak of the wave crest of the corrugated paperboard layer (2) to the core paper layer (1).

3. The high strength moisture regain resistant paperboard of claim 1 wherein: the flame-retardant layer (5) is inorganic filler flame-retardant polypropylene.

4. The high strength moisture regain resistant paperboard of claim 1 wherein: the drying agent (4) is silica gel particles.

5. The high strength moisture regain resistant paperboard of claim 1 wherein: the water-resistant layer (8) is a PVC polymeric film.

6. The high strength moisture regain resistant paperboard of claim 1 wherein: the edge covering layer (10) is a waterproof kraft liner paper, and the outer side face of the edge covering layer (10) is an arc-shaped face.

7. The high strength moisture regain resistant paperboard of claim 1 wherein: the metal mesh layer (6) is a stainless steel mesh.

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