CN206394175U - Moistureproof corrugated paper - Google Patents

Abstract

The utility model discloses a moisture-proof corrugated cardboard, which solves the problem that the corrugated cardboard is easy to get damp when there are humid air environments such as foggy days, rainy days, and snowy days in the transportation process, which will reduce the performance of the corrugated cardboard after the corrugated cardboard is damp. Structural strength, thereby reducing the problem of product protection, the main points of the technical solution are: corrugated cardboard is provided with multiple layers, honeycomb cardboard is bonded between the adjacent second kraft cardboard, and a part of the first kraft cardboard far away from the second kraft paper Both sides are bonded with a waterproof layer. The moisture-proof corrugated cardboard of the utility model can reduce the degree of moisture of the corrugated cardboard when transporting products in humid environments such as fog, rain, and snow, thereby improving the safety of the transported products. Protect.

Description

Moisture-proof corrugated cardboard

technical field

The utility model relates to a packaging material, in particular to a moisture-proof corrugated cardboard.

Background technique

Corrugated cardboard is a multi-layer adhesive body. Corrugated cardboard is composed of at least one layer of corrugated core paper interlayer and one layer of cardboard. Corrugated cardboard has high mechanical strength and can withstand bumps and falls during handling.

In the prior art, such as the Chinese patent whose publication number is CN203063230U, a corrugated cardboard includes a layer of upper kraftboard, a layer of corrugated upper corrugated paper and a lower layer of kraftboard that are stacked together in sequence. The corrugated line of the upper corrugated paper intersects with the side lines of the upper and lower kraft paperboards.

After corrugated cardboard is made into packaging materials, it is mainly used for packaging and protecting products. Once in the transportation process, when there is a humid environment such as fog, rain, and snow, the corrugated cardboard is easy to be damp, resulting in corrugated After the cardboard is damp, the structural strength of the corrugated cardboard will be reduced, thereby reducing the protection of the product, and there is still room for improvement.

Utility model content

The purpose of this utility model is to provide a moisture-proof corrugated cardboard, which can reduce the degree of dampness of the corrugated cardboard when the products are transported in foggy, rainy, snowy and humid environments, thereby improving the protection of the transported products.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A moisture-proof corrugated cardboard, comprising a corrugated cardboard body, said corrugated cardboard body comprising a first kraft cardboard, corrugated cardboard bonded to the first kraft cardboard, a second kraft cardboard bonded to the corrugated cardboard away from the first kraft cardboard, Glue for bonding, the corrugated cardboard body is provided with at least two layers, honeycomb cardboard is bonded between the adjacent second kraft cardboard, and the side of the first kraft cardboard away from the second kraft paper is bonded with Waterproof layer.

Adopting the above-mentioned solution, through the arrangement of at least two layers of corrugated cardboard body, the adjustment of corrugated cardboard thickness is increased, thereby increasing the protection of the product, and the honeycomb cardboard arranged between the second kraft cardboard, the bees use the least material consumption, to build the largest and strongest honeycomb. It has been proved by scientific research that the geometric structure of the honeycomb forms a structure like an arch bridge as a whole, thus increasing the compressive strength on the surface by 100 times. The honeycomb paperboard adopts a honeycomb structure, so it also obtains the largest volume and the greatest strength and stiffness with the least material consumption; the honeycomb paperboard has a core structure, which has excellent buffering and vibration isolation functions, which is close to EPS; the honeycomb core of the honeycomb. Airtight structure, which is filled with air and does not communicate with each other. Therefore, it has good heat insulation and sound insulation performance; changing the thickness and weight of the core paper or changing the aperture and height of the core column of the honeycomb core, the honeycomb paperboard can obtain different strengths and rigidities; the honeycomb paperboard is all paper material, easy to manufacture Special processing to obtain special properties such as waterproof, flame retardant, mildew proof, and solidification enhancement; honeycomb paperboard has been dried by infrared rays or microwaves during the production process, which is equivalent to disinfection and sterilization treatment, so there is no need for fumigation for export, and it is free quarantine. This can replace wood to a certain extent and be used for packaging of export products; honeycomb cardboard is pollution-free in the production process, can be recycled and recycled, and is easy to discard. Therefore, it can replace EPS as a cushioning material. Moreover, the setting of the waterproof layer reduces the wetting of the corrugated cardboard by humid air and water, and improves the protection of the product.

Preferably, the first kraft cardboard protrudes toward the side away from the second kraft cardboard, and the waterproof layer is provided with grooves for installing the protrusions.

With the above solution, the combined use of the protruding lines and the grooves increases the bonding degree between the waterproof layer and the first kraft paper, increases the bonding area, and improves the bonding firmness between the waterproof layer and the first kraft paper.

Preferably, a semi-cylindrical strip protrudes from the side of the waterproof layer close to the second kraft cardboard, and a semi-cylindrical groove for installing the semi-cylindrical strip is provided on the convex strip toward the direction of the second kraft cardboard.

With the above solution, the arrangement of the semi-cylindrical strip and the semi-cylindrical groove increases the contact area between the waterproof layer and the first kraft cardboard, and when glue is used for bonding, the bonding firmness of the waterproof layer and the first kraft cardboard is improved.

Preferably, a triangular prism strip protrudes from the side away from the second kraft cardboard on the first kraft cardboard, and a triangular prism groove for installing the triangular prism strip is provided on the waterproof layer.

With the above scheme, the arrangement of the triangular prism strip and the triangular prism groove increases the contact area between the first kraft cardboard and the waterproof layer, and when glue is used for bonding, the adhesion between the waterproof layer and the first kraft cardboard is strengthened sex.

Preferably, the waterproof layer is made of polyethylene polypropylene fiber.

Using the above scheme, polyethylene polypropylene fiber is made of non-woven fabric and polyethylene as the main raw materials, and a four-layer sheet material with enhanced protective layer, anti-aging layer, waterproof layer and thickening reinforcement layer is manufactured by adding additives to improve its performance. Integrated composite waterproof material. Polyethylene polypropylene fiber is composed of different materials, and the product performance has been significantly improved. In particular, the product is provided with an anti-aging layer, which greatly improves the service life of the product, which can reach more than 50 years. The upper and lower surfaces of polyethylene polypropylene fiber are rough, and the non-woven fabric fiber has an irregular cross structure, forming a three-dimensional mesh, which makes it have high tensile strength, strong impermeability, good low temperature flexibility, small expansion coefficient, low temperature rise effect, and deformation adaptability. Strong ability, large friction coefficient, can be used with a variety of adhesives, good bonding effect, polyethylene polypropylene fiber is a resin polyethylene series polymer waterproof membrane, is a non-toxic, non-polluting green environmental protection product.

Preferably, the second kraft cardboard is provided with a fixing groove for fixing the honeycomb cardboard.

Using the above scheme, the setting of the fixing groove can make the kraft cardboard body and the kraft cardboard body bonded and fixed. The contact area between the cardboard and the second kraft cardboard is more firm.

Preferably, the side of the first kraft cardboard close to the second kraft cardboard is provided with a first fixing strip for fixing the corrugated paper.

By adopting the above scheme, the setting of the first fixing strip enables the corrugated paper to be fixed during the bonding process, which improves the firmness of the corrugated paper. At the same time, the first fixing strip increases the contact area of the corrugated paper and improves the firmness of the corrugated paper bonding. Corrugated paper is not easy to shift and is more stable to use.

Preferably, the side of the second kraft cardboard close to the first kraft cardboard is provided with a second fixing strip for fixing the corrugated paper.

With the above scheme, the setting of the second fixing strip fixes the corrugated paper during the bonding process, which improves the firmness of the corrugated paper. At the same time, the second fixing strip increases the contact area of the corrugated paper and improves the firmness of the corrugated paper. The corrugated paper is not easy to shift, and it is used together with the first fixing strip to improve the stability of the corrugated paper.

Preferably, the glue is made of epoxy resin.

Using the above scheme, the epoxy resin contains a variety of polar groups and highly active epoxy groups, so it has good compatibility with various polar materials such as metals, glass, cement, wood, plastics, etc., especially materials with high surface activity. Strong adhesive force, and the cohesive strength of the epoxy cured product is also very large, so its bonding strength is very high; basically no low molecular volatiles are produced when the epoxy resin is cured. The volume shrinkage rate of the adhesive layer is small, about 1%-2%, and it is one of the varieties with the smallest cure shrinkage rate among thermosetting resins. It can be reduced to less than 0.2% after adding fillers. The coefficient of linear expansion of epoxy cured products is also very small. Therefore, the internal stress is small and has little effect on the bonding strength. In addition, the creep of the epoxy cured product is small, so the dimensional stability of the adhesive layer is good; there are many types of epoxy resins, curing agents and modifiers, and the adhesive can be designed with the required manufacturability through reasonable and ingenious formula design. , and has the required performance; epoxy resin has good compatibility and reactivity with various organic and inorganic substances, and is easy to carry out copolymerization, crosslinking, blending, filling and other modifications to improve the adhesion of the adhesive layer Performance; Epoxy resin has good corrosion resistance and dielectric properties. It can resist the corrosion of various media such as acid, alkali, salt, solvent, etc., the volume resistivity is 1013-1016Ω·cm, and the dielectric strength is 16-35kV/mm; epoxy resin, curing agent and additives are produced in many places, the output is large, and the preparation is simple , can be formed by contact pressing, can be applied on a large scale, and is easy to purchase.

A corrugated box including corrugated paperboard.

With the above scheme, the corrugated box is composed of corrugated cardboard. When using the corrugated box, the products in the corrugated box can be protected. When impacted by the outside world, it can reduce the damage to the products in the corrugated box, and also has the functions of vibration reduction and heat preservation, which is very practical.

In summary, the utility model has the following beneficial effects:

1. The structural strength of corrugated cardboard is high, which improves the safety of products that need to be protected by corrugated cardboard;

2. Corrugated cardboard has waterproof performance, which can alleviate the problem of corrugated cardboard becoming soft due to damp air and rainy days;

3. Using corrugated cardboard as packaging material is more environmentally friendly.

Description of drawings

Fig. 1 is the structural representation of corrugated cardboard;

Fig. 2 is a sectional view of corrugated cardboard;

Fig. 3 is a schematic structural diagram of a corrugated box.

In the figure: 1. Corrugated cardboard body; 2. The first kraft cardboard; 3. Corrugated paper; 4. The second kraft cardboard; 5. Glue; 6. Honeycomb cardboard; 7. Waterproof layer; 8. Raised strips; 9. Groove; 10. Semi-cylindrical bar; 11. Semi-cylindrical slot; 12. Triangular prism bar; 13. Triangular prism slot; 14. Fixing slot; 15. First fixing bar; 16. Second fixing bar; 17. Corrugated box .

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 and 2, a moisture-proof corrugated cardboard disclosed in this embodiment includes a corrugated cardboard body 1, and the corrugated cardboard body 1 includes a first kraft cardboard 2, a corrugated cardboard 3 bonded to the first kraft cardboard 2, and a The first kraft cardboard 2 and the second kraft cardboard 4 bonded to the corrugated paper 3, and the glue 5 used for bonding, the glue 5 adopts epoxy resin in this embodiment.

As shown in Figures 1 and 2, at least two layers of corrugated cardboard body 1 are used in this implementation, and honeycomb cardboard is bonded with glue 5 between the second kraft cardboard 4, and honeycomb cardboard is provided on the second kraft cardboard 4. The fixed slots 14 for paper installation are uniformly distributed in a regular hexagonal shape, which improves the firmness between the second kraft cardboard 4 and the honeycomb cardboard. Thickened processing, plus the connection of the cardboard, improves the crashworthiness of the corrugated cardboard body 1 .

As shown in Figures 1 and 2, the first kraft cardboard 2 is bonded with a waterproof layer 7 by glue 5, and the waterproof layer 7 is made of polyethylene polypropylene fiber to achieve waterproof and moisture-proof effects, while also achieving the effect of heat preservation.

As shown in Figures 1 and 2, the side of the first kraft cardboard 2 away from the second kraft cardboard 4 protrudes to the side away from the second kraft cardboard 4, and a convex line 8 is provided on the waterproof layer 7. The strip 8 is installed in the groove 9 to increase the contact area.

As shown in Figures 1 and 2, a semi-cylindrical bar 10 protrudes from the waterproof layer 7 to the side of the second kraft cardboard 4, and a semi-cylindrical strip 10 is provided on the side away from the second kraft cardboard 4 on the raised bar 8. The semi-cylindrical groove 11 installed on the bar 10 is to increase the contact area. At the same time, the arc is set so that when the external pressure impacts on the waterproof layer 7, a dispersive buffer can be obtained, so that the waterproof layer 7 and the first kraft cardboard 2 Not easy to fall off.

As shown in Figures 1 and 2, the side of the first kraft cardboard 2 away from the second kraft cardboard 4 protrudes upwards and is provided with a triangular prism bar 12. The cross section of the triangular prism bar 12 is an equilateral triangle, and the waterproof layer 7 faces upwards. The side close to the second kraft cardboard 4 is provided with a triangular prism groove 13 for installing the triangular prism strip 12, which not only improves the contact area, but also makes the first kraft cardboard 2 and the waterproof layer 7 adhere more firmly, and at the same time facilitates corrugation. Fold of cardboard.

As shown in Figures 1 and 2, a first fixing strip 15 is arranged between the first kraft cardboard 2 and the corrugated paper 3, and the first fixing strips 15 are respectively arranged on both sides of the contact between the corrugated paper 3 and the first kraft cardboard 2, and Bonded by glue 5 , the first fixing strip 15 and the corrugated paper 3 are attached to each other, and the side of the first fixing strip 15 away from the corrugated paper 3 is arranged perpendicular to the first kraft cardboard 2 .

As shown in Figures 1 and 2, a second fixing strip 16 is provided between the second kraft cardboard 4 and the corrugated paper 3, and the second fixing strips 16 are respectively arranged on both sides of the contact between the corrugated paper 3 and the second kraft cardboard 4, and The second fixing strip 16 and the corrugated paper 3 are bonded together by the glue 5 , and the side of the second fixing strip 16 away from the corrugated paper 3 is inclined upward toward the direction of the corrugated paper 3 .

As shown in FIGS. 1-3 , this embodiment also discloses a corrugated cardboard box 17 . The corrugated cardboard box 17 is arranged in a rectangular shape and is made of a corrugated cardboard body 1 .

Assembly process:

1. Apply glue 5 on the first kraft cardboard 2 and bond it to the first fixing strip 15;

2. Apply glue 5 on the second kraft cardboard 4 and bond it to the second fixing strip 16;

3. Apply glue 5 to the first kraft cardboard 2 with the first fixing strip 15 and the second kraft cardboard 4 with the second fixing strip 16 and bond it to the corrugated paper 3;

4. Apply glue 5 on the adjacent second kraft cardboard 4, and glue it to the honeycomb cardboard;

5. Apply glue 5 on the first kraft cardboard 2 of the outermost layer and align the triangular prism groove 9 and semi-cylindrical strip 10 on the waterproof layer 7 with the triangular prism strip 12 on the first kraft cardboard 2, The semi-cylindrical groove 11 is installed and glued.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (10)

1. a kind of moistureproof corrugated paper, including corrugated board body (1), the corrugated board body (1) include the first ox-hide card Paper (2), with the first kraft inner paper (2) bind corrugated paper (3), away from the first kraft inner paper (2) and with corrugated paper (3) bind Second kraft inner paper (4), the glue (5) for bonding, it is characterized in that：The corrugated board body (1) at least provided with two layers, It is bonded between adjacent second kraft inner paper (4) on honeycomb cardboard (6), first kraft liner away from the second brown paper Side be bonded with waterproof layer (7).

2. moistureproof corrugated paper according to claim 1, it is characterized in that：To away from the on first kraft inner paper (2) The side projection of two kraft inner papers (4) has the groove (9) for being provided with and being installed for raised line (8) on raised line (8), the waterproof layer (7).

3. moistureproof corrugated paper according to claim 2, it is characterized in that：Close to the second ox-hide card on the waterproof layer (7) The side of paper (4) is protruding with semicolumn bar (10), the raised line (8) to the direction of the second kraft inner paper (4) and is provided with for half The semicolumn groove (11) that cylindrical bars (10) are installed.

4. moistureproof corrugated paper according to claim 2, it is characterized in that：To away from the on first kraft inner paper (2) The side projection of two kraft inner papers (4), which is provided with triangular prism bar (12), the waterproof layer (7), to be provided with for triangular prism bar (12) The triangular prism groove (13) of installation.

5. moistureproof corrugated paper according to claim 1, it is characterized in that：The waterproof layer (7) is made up of polyethylene polypropylene.

6. moistureproof corrugated paper according to claim 1, it is characterized in that：Confession is provided with second kraft inner paper (4) The fixing groove (14) that honeycomb paperboard is fixed.

7. moistureproof corrugated paper according to claim 1, it is characterized in that：First kraft inner paper (2) is close to second N The side of pick up paper (4) is provided with for fixed the first fixed strip (15) of corrugated paper (3).

8. moistureproof corrugated paper according to claim 1, it is characterized in that：Second kraft inner paper (4) is close to first N The side of pick up paper (2) is provided with for fixed the second fixed strip (16) of corrugated paper (3).

9. moistureproof corrugated paper according to claim 1, it is characterized in that：The glue (5) is made up of epoxy resin.

10. a kind of corrugated case, it is characterized in that：Include the corrugated board of any one of claim 1 to 9.