KR102130568B1 - A paper for packing box having warm or cold insulation - Google Patents

Abstract

The present invention relates to a paper for producing a warm, cold packaging box. More specifically, the present invention relates to a paper for manufacturing a warm, cold packaging box that can be used as a paper member that can replace Styrofoam used in a packing box for thermal insulation or cold storage.
Insulating paper according to an embodiment of the present invention, the paper for manufacturing a cold storage box is made of a honeycomb structure made of paper and two paper plates mounted on both sides of the honeycomb structure, and the honeycomb structure is made on one or more surfaces. 1 coating layer is formed, the paper plate may be a second coating layer is formed on one or more surfaces.

Description

Paper for making thermal insulation and cold storage packaging box {A PAPER FOR PACKING BOX HAVING WARM OR COLD INSULATION}

The present invention relates to a paper for producing a warm, cold packaging box. More specifically, the present invention relates to a paper for producing a warm, cold packaging box that can be used as a paper member that can replace Styrofoam used in a packing box for thermal insulation or cold storage.

With the development of distribution technology, the courier industry, which transports or transports goods over a long distance, has developed. Recently, as the e-commerce through the Internet, mobile, and TV home shopping becomes active, the transportation industry that transports or transports various items is increasing.

Refrigerated or frozen products, such as ginseng, mushrooms, meat, aquatic products, vegetables or fruits, where freshness is directly related to the quality of the product, among the various items transported, will be easily deteriorated during transportation or transportation. In order to sell or transport, it is necessary to keep the inside of the packaging box at a constant temperature while maintaining the environment and insulation of the packaging box using a freezer, or to keep the inside of the packaging box at a constant temperature. In particular, when ordering a small amount of refrigerated or frozen products, the method of transporting by using a refrigeration work inside the packaging box is realistically carried out because the transportation cost of the refrigerated vehicle or the refrigerated vehicle is increased, which increases the selling price of the final product. Is utilized.

Conventional cold storage boxes or thermal insulation boxes are most commonly used in the form of styrofoam as an insulating material while using an ice pack or a hot pack. It is used as a heat insulating material to make the shape of the packaging box by using Styrofoam or to make the support structure of the box so that the temperature of the contents contained in the box can be maintained within a certain range. Therefore, Styrofoam has a certain degree of support effect and is widely used in thermal insulation or cold storage packaging boxes due to its excellent heat insulation and light weight.

In particular, in the case of a warm and cold box, moisture is generated on the surface due to the difference in temperature between the outside air and the air, but there is a problem that the box loses support and is damaged by the moisture generated when using ordinary paper, but the moisture generated when using Styrofoam It also has the advantage that there is almost no problem of the box being damaged.

However, the thermal insulation and cold storage packaging box is used to effectively protect the products in the distribution process in the distribution process, but in the process of recycling after achieving the purpose, the styrofoam contained in the thermal insulation and cold storage packaging box is recycled unlike ordinary paper. There is this difficult problem.

Therefore, there is a need for a method to increase the recycling of warm and cold packaging boxes using paper without using styrofoam. In particular, sufficient insulation should be secured while using paper. If the insulation is not secured, the insulation or heat retention is reduced, which shortens the shelf life of the packaging box, which ultimately degrades the competitiveness of the packaging box product.

You should also have sufficient support. Not only the contents of the packaging box are packaged with sufficient durability to the impact generated during the distribution process with a certain strength, the appearance of the packaging box itself should not collapse. Unlike general courier boxes, in the case of a warm or cold packaging box, it is the product's competitiveness that can convey the aesthetic sense of the box itself, so it requires considerable durability to maintain the appearance of the box itself during the distribution process.

Next, there is a problem in that the weight of the packaging box is increased when multiple layers of paper are used to increase support and insulation. As the packaging box becomes heavier, the distribution cost increases and the competitiveness of the packaging box itself decreases.

In addition, it must have resistance to surface moisture generated during the warming or cooling process. If paper is used, it must be quite vulnerable to moisture. Paper exposed to moisture not only deteriorates durability, but also deteriorates the inner and outer appearance of the thermal insulation or cold storage packaging box itself, thereby deteriorating the productability of the packaging box itself.

Therefore, there is a need for a paper material for the production of a heat-insulated, cold-packed packaging box in which styrofoam is eliminated, which can solve the above problems without using styrofoam. In particular, there is a need to develop a paper material that can be used to construct the inner and outer walls of a thermal insulation and cold storage packaging box.

KR 10-2012-0040287 A KR 10-1856424 B1

An object of the present invention is to reduce the environmental problems caused by the use of styrofoam by providing a paper material that can replace the styrofoam included in manufacturing the warm, cold packaging box, and ultimately to increase the recyclability of the warm, cold packaging box.

The present invention is to provide sufficient thermal insulation and thermal insulation of a packaging box without using styrofoam by providing paper for manufacturing a thermal insulation and thermal insulation box having lightness and a certain degree of thermal insulation.

The present invention is to increase the product competitiveness of the thermal insulation, cold storage packaging box without the use of styrofoam by providing a paper for the production of thermal insulation and cold storage box with waterproof, flame retardant and sufficient durability.

In order to achieve the above object, the paper for manufacturing a warm and cold packaging box according to an embodiment of the present invention is made of a honeycomb structure made of paper and two paper plates mounted on both sides of the honeycomb structure, respectively. The structure may have a first coating layer formed on one or more surfaces thereof, and the paper plate may have a second coating layer formed on one or more surfaces thereof.

In the paper for manufacturing the heat insulating and cold packaging box, the first coating layer is a silicone resin; It may be formed by applying a first coating composition containing polyurethane and zeolite.

In the paper for manufacturing the heat-insulating and cold-packaging box, the second coating layer is an epoxy siloxane; It may be formed by applying a first coating composition containing dioctatalate and ethylene glycol.

The first coating composition includes a silicone resin, 30 to 80 parts by weight of polyurethane with respect to 100 parts by weight of the silicone resin; Zeolite 1 to 5 parts by weight may be included.

The second coating composition includes an epoxy siloxane and 1 to 30 parts by weight of dioctalate relative to 100 parts by weight of the epoxy siloxane; Ethylene glycol 1 to 30 parts by weight may be included.

The paper plate may have a second coating layer formed on one surface and a laminating coating layer formed on the other surface.

In the paper for manufacturing the thermal insulation and cold storage packaging box, the honeycomb structure may be made of a second paper or a third paper.

Hereinafter, the present invention will be described in more detail.

Insulating paper according to an embodiment of the present invention, the paper for producing a cold storage box is made of a honeycomb structure made of paper and two paper plates mounted on both sides of the honeycomb structure, and the honeycomb structure is made on one or more surfaces. 1 coating layer is formed, the paper plate may be a second coating layer is formed on one or more surfaces.

The honeycomb structure referred to in the present invention means a paper structure made by folding a rectangular paper plate into hexagonal shapes. In addition, the honeycomb structure referred to in the present invention means that the inside of the hexagonal structure is empty, and includes one or both sides that are in contact with the paper plate.

Insulating or insulating in the present invention is defined to include one that allows the temperature of the contents of the box to be kept constant with a prior meaning.

The packaging box referred to in the present invention means to store the product inside and safely store the product in the course of distribution of the product, and includes all of the box for gift packaging in which an aesthetic pattern is printed or the box is aesthetically designed in three dimensions. define.

The paper for manufacturing a packaging box referred to in the present invention is defined to include all of box materials made of paper, such as cardboard and corrugated materials used to manufacture the box.

In the paper for manufacturing the heat insulating and cold packaging box, the first coating layer is a silicone resin; It may be formed by applying a first coating composition containing polyurethane and zeolite.

When the first coating layer is formed, the honeycomb structure can be stored with air more closely, and the air flow can be prevented to improve heat retention and cool performance. In addition, by increasing the durability of the box and having a certain range of waterproofness, it is possible to prevent the design expressed on the box from being damaged by moisture.

In the paper for manufacturing the heat-insulating and cold-packaging box, the second coating layer is an epoxy siloxane; It may be formed by applying a first coating composition containing dioctatalate and ethylene glycol.

In the case of the first coating composition, while improving the durability of the paper material, it is possible to improve water resistance, heat preservation, and heat retention.

The first coating composition includes a silicone resin, 30 to 80 parts by weight of polyurethane with respect to 100 parts by weight of the silicone resin; Zeolite 1 to 5 parts by weight may be included.

Preferably, the first coating composition includes a silicone resin, and 40 to 60 parts by weight of polyurethane with respect to 100 parts by weight of the silicone resin; Zeolite 1.5 to 3.5 parts by weight may be included.

In the case of the above range, the waterproofness, heat preservation, and coolness of the paper material are kept high, so that the product inside the box can be safely stored, thereby increasing the recyclability using paper and replacing the styrofoam material.

The second coating composition includes an epoxy siloxane and 1 to 30 parts by weight of dioctalate relative to 100 parts by weight of the epoxy siloxane; Ethylene glycol 1 to 30 parts by weight may be included.

Preferably, the second coating composition contains an epoxy siloxane and 5 to 20 parts by weight of dioctalate relative to 100 parts by weight of the epoxy siloxane; 5 to 20 parts by weight of ethylene glycol may be included.

A certain pattern or color is printed on one or both sides of the paper plate in order to enhance the aesthetic sense. In the case of the second coating composition, high waterproofness can be achieved without deteriorating the printing state. In particular, in the case of the above range, waterproofness may be improved due to a synergistic effect due to interaction of each composition.

The paper plate may have a second coating layer formed on one surface and a laminating coating layer formed on the other surface.

In the paper for manufacturing the warm and cold packaging box, the honeycomb structure may be made of a second paper or a third paper.

The second paper referred to in the present invention refers to recycled paper that is recycled by including at least 40w% of recycled paper. In addition, the third notice paper refers to paper made of recycled paper of at least 40w% of the second notice paper. The paper has different properties according to the classification, and according to the second paper or the third paper, the first and second coating layers can be stably formed if there are many pores and relatively light properties. In the case of using the second or third notice paper in the paper for manufacturing the heat-insulating and cold-packaged packaging according to the present invention, a stable coating layer may be formed, and the heat-insulating, heat-insulating and durability can be increased and the weight can be reduced.

Preferably, the first coating agent may further include an additive composed of the following [Chemical Formula 1].

[Formula 1]

(In Formula 1, R ₁ is hydrogen or an alkane group having 1 to 10 carbon atoms, R ₂ is hydrogen or an alkane group having 1 to 10 carbon atoms, and n is an integer.)

The additive composed of [Formula 1] or [Formula 2] may be included in 0.1 to 0.5 parts by weight based on 100 parts by weight of the silicone resin. In the case of the above range, a synergistic effect according to the use of the additive may be exhibited.

More preferably, the first coating agent may further include an additive composed of the following [Formula 2].

(In Formula 2, n is an integer.)

When the additive is included, the stability of the coating layer is increased, and thus, cold storage and water resistance are more excellent.

Preferably, the second coating agent may further include an additive composed of the following [Chemical Formula 3].

[Formula 3]

(In Formula 3, R ₁ is hydrogen or an alkyl group of 1 to 10 carbon atoms.)

More preferably, the second coating agent may further include an additive composed of the following [Chemical Formula 3].

[Formula 4]

When the additive is included, the stability of the coating layer is increased, and thus, cold storage and water resistance are more excellent.

The additive consisting of [Formula 3] or [Formula 4] may be included in 0.1 to 0.5 parts by weight based on 100 parts by weight of the epoxy siloxane. In the case of the above range, a synergistic effect according to the use of the additive may be exhibited.

The present invention reduces the environmental problems caused by the use of styrofoam by providing a paper material for the production of thermal insulation and thermal insulation packaging boxes that can replace styrofoam included in manufacturing thermal insulation and thermal insulation packaging boxes, and ultimately, recyclability for thermal insulation and thermal insulation packaging boxes. To increase.

The paper for producing a warm and cold packaging box according to the present invention is light, but has a thermal insulation property of a certain degree or more, so that the thermal insulation and cold storage properties of the packaging box may be sufficient without using styrofoam.

The paper for manufacturing a warm and cold packaging box according to the present invention can enhance product competitiveness of a warm and cold packaging box without using Styrofoam for waterproof, flame retardant, and sufficient durability.

Figure 1 shows a paper for producing a warm, cold packaging box according to the present invention.
Figure 2 shows a paper for producing a warm, cold packaging box according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[ Manufacturing example : Coating layer formed Honeycomb Manufacturing of corrugated cardboard for packaging box of structure]

In order to confirm the effect characteristics of the paper for manufacturing a warm and cold packaging box according to the present invention, a paper for manufacturing a box made of a honeycomb structure made of a paper plate and paper as shown in FIG. 1 was manufactured.

The paper for the packaging box was formed so that the first coating layer and the second coating layer were formed using the first coating composition having the composition as shown in [Table 1] and the second coating composition having the composition as shown in [Table 2] below. To A9 were prepared.

The additive of [Table 1] below was used by mixing the compound consisting of [Formula 2]. In addition, the additive of [Table 2] below was used by mixing a chemical composed of [Formula 4].

A1 A2 A3 A4 A5 A6 A7 A8 A9 Silicone resin 100 100 100 100 100 100 100 100 100 Polyurethane 20 40 50 60 80 50 50 50 50 Zeolite 0.5 1.5 2.5 3.5 5.5 2.5 2.5 2.5 2.5 additive - - - - - 0.05 0.1 0.5 One

(Unit: parts by weight)

A1 A2 A3 A4 A5 A6 A7 A8 A9 Epoxy siloxane 100 100 100 100 100 100 100 100 100 Dioctaltalate 0.5 5 10 20 35 10 10 10 10 Ethylene glycol 0.5 5 10 20 35 10 10 10 10 additive - - - - - 0.05 0.1 0.5 One

(Unit: parts by weight)

[ Experimental Example : Evaluation of physical properties for packaging boxes ]

One. Coolness Experiment

Hexagonal boxes were manufactured using the papers prepared from A1 to A9. The ice pack was placed inside the hexagonal box, and the time taken for the ice pack to melt was measured while maintaining 34 to 38°C. On the other hand, as a comparative example, a conventional hexagonal box in which Styrofoam was used was used to compare the results of A1 to A9 as a reference (Con), and evaluated with an index of 1 to 10. The results are shown in Table 3 below. The higher the number, the better the effect.

Con A1 A2 A3 A4 A5 A6 A7 A8 A9 Coolness 10 One 3 3 3 One 3 6 7 3

(Unit: Index) Referring to [Table 3] above, it can be seen that in the case of A2 to A4, the first and second coating layers are stably formed to improve cold storage properties. In particular, it was confirmed that in the case of A7 and A8, a solid coating layer was formed according to the use of the additive, and accordingly, the coolability was very high.

Therefore, according to the present invention, it can be seen that it can be used to manufacture a packaging box for thermal insulation and high recyclability because it can exhibit high heat retention without using styrofoam.

2. Waterproofing experiment

The paper used in the gift packaging box is waterproof because it generates a lot of moisture on the surface of the box depending on its contents. do. Therefore, while spraying the same amount of water on the A1 and A9 with a sprayer, the degree to which the inside of the paper was wet and the degree of warpage was evaluated with an index of 1 to 10, and the results are shown in [Table 4] below. The higher the number, the better the effect.

A1 A2 A3 A4 A5 A6 A7 A8 A9 Waterproof 3 4 4 4 3 4 8 8 5

(Unit: Index) Referring to [Table 4] above, it can be seen that in the case of A7 and A8, the coating layer is stably formed and exhibits a high waterproofing effect. Accordingly, it can be seen that in the above-described range, the surface of the box may be damaged by moisture in the process of distributing items requiring cold storage, or the damage of the box itself may be prevented. Accordingly, it is possible to manufacture a heat-insulating, cold-retaining box having high recyclability without using styrofoam.

3. Printability evaluation

In the case of using a bonding composition on paper, there is a problem such that the surface of the paper is not deformed smoothly or the coating layer itself is not formed on a smooth surface. In general, since the box for thermal and cold packaging is used for gift packaging, it is common to print patterns or colors on the surface to enhance the aesthetic sense. However, if the paper surface is deformed by the coating layer, or if the coating layer itself becomes a form that cannot print patterns or the like on it, it cannot be used as a gift packaging box.

Therefore, based on the paper (Con) to which the organic film for lamination was attached, the same patterns and colors were printed for A1 to A9, and the quality was evaluated with an index of 1 to 10. The results are shown in Table 5 below. The higher the number of each index, the better the effect.

Con A1 A2 A3 A4 A5 A6 A7 A8 A9 Printability 10 5 6 7 6 4 5 9 9 6

(Unit: index)

Referring to [Table 5], it can be seen that in the case of A7 and A8, since the coating layer is very stably formed and a smooth coating layer is formed without affecting the surface of the paper, high quality printing is possible. Therefore, in the case of the above range, without using styrofoam, only recyclable paper can be used as a material for a packaging box for heat preservation and heat insulation that can exhibit significant effects.

The preferred embodiments of the present invention have been described in detail above, but the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

10: honeycomb structure made of paper
20: paper board
30: laminate coating layer

Claims (7)

Honeycomb structure made of paper and
It consists of two paper plates that are mounted on both sides of the honeycomb structure,
The honeycomb structure has a first coating layer formed on at least one surface thereof,
The paper plate has a second coating layer formed on at least one surface
In the paper for making thermal insulation and cold storage packaging,
The first coating layer
Silicone resin;
Polyurethane; And
It is formed by applying the first coating composition containing zeolite,
The second coating layer
Epoxy siloxane;
Dioctatalate; And
It is formed by applying a second coating composition containing ethylene glycol
Paper for making warm and cold packaging boxes. delete delete According to claim 1,
The first coating composition
Contains silicone resin, and based on 100 parts by weight of the silicone resin
30 to 80 parts by weight of polyurethane;
Zeolite 1 to 5 parts by weight is included
Paper for making warm and cold packaging boxes. The method of claim 1
The second coating composition
Epoxy siloxane and 100 parts by weight of epoxy siloxane
Dioctalate 1 to 30 parts by weight;
Ethylene glycol containing 1 to 30 parts by weight
Paper for making warm and cold packaging boxes. The method of claim 5
The paper plate is formed with a second coating layer on one side,
The other side is that the laminating coating layer is formed
Paper for making warm and cold packaging boxes. The method of claim 4 or 5,
The honeycomb structure is made of the second or third notice
Paper for making warm and cold packaging boxes.

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