KR101286000B1 - Nanoparticles coated papper container and method of manufacturing thereof - Google Patents

Abstract

According to one embodiment of the present invention as described above, it is possible to use a variety of materials without being limited by the material of the base paper, there is an effect that can reduce the cost and simplify the manufacturing process. To this end, in particular, an embodiment of the present invention includes a side paper comprising a base paper and a first coating layer formed on one side of the base paper and punched in a predetermined shape to form a side surface of the container, and the side surface overlapping to constitute the side surface of the container. And a second coating layer formed on at least one end of the paper and attached to the contact portion of the lower side of the side paper, and a paper container coated with the nanoparticles including the bottom paper forming the bottom of the container.

Description

Paper container coated with nanoparticles and its manufacturing method {NANOPARTICLES COATED PAPPER CONTAINER AND METHOD OF MANUFACTURING THEREOF}

The present invention relates to a paper container and a method for manufacturing the same, which effectively prevents external leakage of paper container contents by coating nanoparticles on the paper container.

Conventional paper container manufacturing process, such as registered utility model No. 20-1999-0025709 (1999.11.22) by punching the base paper to form a vinyl coating layer for lateral paper bonding rolled into a cylindrical, overlapping both ends and heat and pressure Add and bond. In this case, leakage may occur through the cut end surface or the vinyl coating layer serving as the adhesive layer may be damaged by heat, and leakage may occur in the gap. In order to solve this problem, the conventional invention uses a synthetic resin coating layer.

However, this synthetic resin coating layer has a problem in that sticking to each other in the manufacturing process due to the sticky viscosity to reduce the productivity.

In addition, such a leakage phenomenon is not a big problem in the case of a base paper containing a large amount of subsidiary materials such as resin or aluminum sulfate when manufacturing the raw paper, but a raw material containing a large amount of subsidiary materials such as resin or aluminum sulfate is high in cost and It can be harmful. In addition, these materials prevent the recycling of disposable paper containers and cause environmental pollution when landfilling or incineration.

On the other hand, when a paper container is made of ordinary paper having a low or no submaterial content such as resin or aluminum sulfate, the liquid contained in the paper container is absorbed through the cross section of the cutting portion, causing leakage.

Therefore, there is a need to effectively prevent the liquid contained therein from leaking out of the paper container to the outside, regardless of the material of the base paper.

The present invention has been made in view of the necessity as described above, and a first object of the present invention is a paper container coated with nanoparticles and a method for providing the same to effectively solve the problem of leakage of contents generated in the paper container according to the material of the paper. To provide.

In addition, the second object of the present invention in the manufacture of paper containers can be used without restrictions containing a small amount of by-products such as resin or aluminum sulfate, so as to reduce the cost, harm to the human body and do not pollute the environment The present invention provides a paper container coated with nanoparticles on a paper container, and a method of providing the same.

An object of the present invention as described above is a side paper comprising a base paper and a first coating layer formed on one surface of the base paper and punched in a predetermined shape to form the side of the container; A second coating layer formed on at least one of both ends of the side paper overlapping to constitute a side of the container and including nanoparticles; And a bottom paper attached to the contact portion under the side paper to form a bottom of the container, and may be achieved by providing a paper container coated with nano particles.

In addition, the first coating layer may be a waterproof coating layer to prevent the predetermined liquid is absorbed in the base paper.

On the other hand, an object of the present invention as another category, the first coating layer forming step of forming a first coating layer on one surface of the base paper (S110); A side paper forming step of forming side papers by punching on the base paper on which the first coating layer is formed (S130); A spraying step (S150) of spraying a second coating solution containing nanoparticles on at least one of both ends of the formed side paper; A second coating layer forming step of drying the second coating solution to form a second coating layer at one end (S170); And a bottom paper attaching step (S190) in which a bottom paper is attached to a lower contact portion of the side paper on which the second coating layer is formed. A nanoparticle-coated paper container manufacturing method can be achieved.

And, an object of the present invention is the first coating layer forming step of forming a first coating layer on one side of the base paper (S210); A side paper forming step of forming side papers by punching on the base paper on which the first coating layer is formed (S230); At least one end of both ends of the formed side paper is immersed in the second coating solution containing the nanoparticles (S250); A second coating layer forming step of drying a second coating solution to form a second coating layer at one end (S270); And a bottom paper attaching step (S290) to which a bottom paper constituting the bottom of the container is attached to a lower contact portion of the side paper having the second coating layer formed thereon. The nanoparticle-coated paper container manufacturing method may be achieved.

In addition, an object of the present invention is a first coating layer forming step of forming a first coating layer on one surface of the base paper (S310); A side paper forming step of forming side papers by punching on the base paper on which the first coating layer is formed (S330); A second coating solution brushing step (S350) of coating a second coating solution including nanoparticles on at least one of both ends of the formed side paper by a brush roll; A second coating layer forming step of drying a second coating solution to form a second coating layer at one end (S370); And a bottom paper attaching step (S390) in which a bottom paper constituting the bottom surface of the container is attached to a lower contact surface of the side paper having a second coating layer formed thereon. The nanoparticle-coated paper container manufacturing method may be achieved.

According to one embodiment of the present invention as described above, even if a gap occurs in the waterproof coating layer, the second coating layer compensates for the gap, thereby preventing the contents of the inside of the paper container from leaking to the cut section of the side paper. do.

In addition, various raw papers can be used without being restricted by the material of the raw paper, which simplifies the manufacturing process of the original paper and can reduce or eliminate by-products, thereby reducing costs, harming the human body, and preventing environmental pollution. have.

1 is a development view showing a side of the configuration of one embodiment according to the present invention;
2 is a perspective view showing a paper container coated with nanoparticles according to an embodiment of the present invention;
3 is a flowchart sequentially showing a first embodiment of the method for manufacturing a paper container coated with nanoparticles according to the present invention;
4 is a flow chart sequentially showing a second embodiment of the method for manufacturing a nanoparticle-coated paper container according to the present invention,
5 is a flow chart sequentially showing a third embodiment of the method for manufacturing a nanoparticle-coated paper container according to the present invention.

Hereinafter, a paper container coated with nanoparticles and a method of manufacturing the same will be described with reference to the accompanying drawings.

It should be noted that the thicknesses of the lines, the sizes and the ratios of the components shown in the drawings may be exaggerated for clarity and ease of explanation, and the same reference numerals are used for the same components.

<Paper container coated with nano particles>

1 is a development view showing a side paper 10 of the configuration of one embodiment according to the present invention, Figure 2 is a perspective view showing a paper container coated with the nanoparticles of the present invention. As shown in Fig. 1 and Fig. 2, an embodiment according to the present invention includes a side face 10 which comprises a first coating layer 11 formed on one side of the base paper and forms the side of the container through punching and such a side face. The container is attached to the second coating layer 20 including the nano-particles formed on at least one end of both ends of the side paper 10, and the contact portion 13 located below the side paper 10 to form a container. The bottom paper 30 constituting the bottom of the.

One embodiment of the nanoparticle-coated paper container of the present invention includes a base paper that is a raw material of the paper container and a first coating layer 11 formed on one surface of the base paper to waterproof. In addition, the second coating layer 20 including nanoparticles is formed on at least one end of both ends of the overlapping side face 10 in order to construct the side face 10, which is the side face of the container, .

Hereinafter, each configuration will be described in detail with reference to FIGS. 1 and 2.

The side paper 10 includes a first coating layer 11 formed on one side of raw paper and paper, and is punched into a predetermined shape to form a side surface of the container.

Meanwhile, the container may be a paper cup container, a cup ramen container, or the like, and the paper cup is described as an example in the present invention.

The base papers include white paper, art paper and bleached kraft pulp (BKP) for high-quality printing, semi-bleached kraft pulp (SKP) used for newspaper paper production, and unbleached kraft pulp (UKP) mainly used for producing wrapping paper and liner paper. It may include.

Such a base may be roll paper for import or export of unstandardized containers or a base having dimensions standardized according to the KS standard.

The standardized dimensions may be 625 × 880mm in column A and 743 × 1,050mm in column B, as in Korea's KS standard or international standard.

In addition, the first coating layer 11 may be a waterproof coating layer that prevents a predetermined liquid (eg, water, coffee, juice, tea, etc.) from being absorbed into the base paper, and may be melted and adhered to adjacent base paper when subjected to heat and pressure. have.

The first coating layer 11 is a synthetic resin prepared by polymerizing ethylene, which is a transparent solid at room temperature, and has a low crystallization of 0.91 to 0.94 due to its low crystallization, and thus PLA, which is low density polyethylene or biodegradable plastic having excellent processability, flexibility, and transparency. (Polylactic acid) may be a kind.

The second coating layer 20 is formed on at least one of both ends of the side paper 10 overlapping to constitute the side of the container, and serves to prevent leakage in the cutting section by exerting repulsive force on the adjacent liquid including nanoparticles. do.

Here, the container may comprise a paper container and the container in the present invention has described the paper container as an example.

The second coating layer may be distributed on at least one peripheral portion and a cut surface at both ends of the side surface.

The second coating layer 20 may be formed by a spray method of injecting a second coating solution including nanoparticles, a immersion method of dipping into the second coating solution, or a method of brushing the second coating solution with a brush.

In addition, the nano-particles may be in the form of inorganic mineral groups or molecules such as silicon dioxide (SiO 2), alumina (Al203), titanium dioxide (TiO 2), and the like, and the solvent added together may be water (WATER) or alcohol that is harmless to the human body. ) May be used to form a second coating layer of nanostructures at or around the cutting section. In addition, the ultra-nano nanostructure is absorbed by the base paper and exerts a repulsive force on the adjacent water molecules to serve to preserve the contents of the container without leaking.

Accordingly, the second coating layer 20 formed on at least one of both ends of the side paper 10 leaks a predetermined content to the cut-out section of the side paper, or leaks into the gap of the first coating layer 11 which serves to bond and waterproof. It is possible to compensate for the problem.

On the other hand, the nanoparticles included in the second coating layer 20 is present in the structure of atoms or molecules mixed with the atoms or molecules of the solvent in one or a dozen units, and the nanomaterials are self-contained as the solvent is vaporized after application to the base paper Or the coating is made while tightly binding to the fiber of the base paper. The nano coating method of the paper base paper is distinguished from the conventional method of dissolving the nano powder in a solvent and applying or mixing the nano powder when manufacturing the base paper. The nanoparticle concentration of the solution containing the nanoparticles is preferably used in an amount of about 0.5 wt% or more to 10 wt% or less. If the concentration of nanoparticles is blurred, the amount of solvent penetrating the paper for coating may be increased, which may slow down the process and cause the paper to swell in the solvent. If the concentration of the nanoparticles is too high, the side paper 10 may be used. The nanoparticles are thickly applied between one end or one end of the other end and the cost is increased and the coating may be visible, and after solidification, the coated nanoparticles may be broken and peeled off by impact.

The bottom paper 30 may be attached to the contact portion 13 below the side paper 10 to constitute the bottom of the container. Here, the bottom paper 10 may be attached to the contact portion 13 using an adhesive solution, but preferably, the first paper layer coated on the contact portion is attached in a thermocompression manner in which heat and pressure are applied without using the adhesive solution. Can be.

&Lt; Preparation method of paper container coated with nanoparticles >

1st Example

3 is a flowchart sequentially showing an embodiment method according to the present invention.

Referring to FIG. 3, in this embodiment, first, a first coating layer 11 is formed on one surface of a base paper (S110).

Next, the side paper 10 is formed by punching on the base paper on which the first coating layer 11 is formed (S130).

Next, a second coating solution containing nanoparticles is sprayed on at least one of both ends of the formed side paper 10 (S150).

Here, step S150 may be performed by spraying a second coating solution containing nanoparticles into a spray gun, and the spray bottle may include a compression sprayer or an aerosol spray method.

Next, the second coating solution is dried to form a second coating layer 20 at one end (S170).

On the other hand, the drying of the second coating solution in step S170 may be a natural drying at room temperature, but may be a hot air drying method using a hot air or a cold air drying method using a cold air to dry quickly, the temperature of the hot air and cold air is the environment and purpose of use It can be adjusted in various ways.

Finally, the bottom surface 30 is attached to the bottom surface 13 of the side surface 10 on which the second coating layer 20 is formed, thereby performing the first embodiment (S190).

Second Example

4 is a flowchart sequentially showing an embodiment method according to the present invention.

Referring to FIG. 4, in this embodiment, first, the first coating layer 11 is formed on one surface of a base paper (S210).

Next, the side paper 10 is formed by punching on the base paper on which the first coating layer 11 is formed (S230).

Next, at least one of both ends of the formed side paper 10 is immersed in the second coating solution containing the nanoparticles (S250).

Here, step S250 may be immersed in a sheet or a large amount in the manner in which the side paper 10 is immersed in the second coating solution. In addition, the second coating solution may be a dipping method of dipping down the stacked side sheets according to the present position of the second coating solution or a method of dipping from left to right.

Next, the second coating solution is dried at one end of the second coating agent dipped to form the second coating layer 20 at one end (S270).

In step S270, the drying of the second coating solution may be performed by a hot air drying method using hot air or a cold air drying method using cold air to dry quickly at a room temperature, Can be adjusted in various ways.

Finally, the second embodiment may be performed by attaching the bottom sheet 30 to the lower contact portion 13 of the side sheet 10 on which the second coating layer 20 is formed (S290).

Third Example

5 is a flowchart sequentially showing an embodiment method according to the present invention.

Referring to FIG. 5, in the present embodiment, first, a first coating layer 11 is formed on one surface of a base paper (S310).

Next, the side paper 10 is formed by punching on the base paper on which the first coating layer 11 is formed (S330).

Next, at least one of both ends of the formed side paper 10 is coated with a second coating solution containing nanoparticles by the brush (S350).

Here, in step S350, the brush may be a brush brush, a brush, or the like, and the brush brush may be applied in a rotational manner by providing a roll brush or the like. The speed and the degree of adhesion can be adjusted in various ways in consideration of the environment and the purpose of use.

Next, the second coating solution is dried to form a second coating layer 20 at one end (S370).

On the other hand, drying of the second coating solution in step S370 may be a natural drying at room temperature, but may be a hot air drying method using a hot air or a cold air drying method using a cold air to dry quickly, the temperature of the hot air and cold air is the environment and purpose of use It can be adjusted in various ways.

Finally, the third embodiment may be performed by attaching the bottom sheet 30 to the lower contact portion 13 of the side sheet 10 on which the second coating layer 20 is formed (S390).

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all aspects. In addition, the scope of the present invention is indicated by the appended claims rather than the detailed description above. Also, all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: side paper
11: first coating layer
13: side contact
20: second coating layer
30: bottom paper

Claims (4)

A side paper comprising a base paper and a first coating layer formed on one surface of the base paper and punched into a predetermined shape to form a side surface of the container;
A second coating layer formed on at least one of both ends of the side paper overlapping to constitute a side of the container and including nanoparticles; And
Includes a bottom paper attached to the contact portion of the lower side of the side paper constituting the bottom of the container;
The nanoparticle-coated paper container, characterized in that containing at least one of silicon dioxide, alumina and titanium dioxide in atomic or molecular form.
A first coating layer forming step of forming a first coating layer on one surface of a base paper (S110);
A side paper forming step of forming side paper by punching on the base paper on which the first coating layer is formed (S130);
A spraying step (S150) of spraying a second coating solution containing nanoparticles on at least one of both ends of the formed side paper;
A second coating layer forming step of drying the second coating solution to form a second coating layer at one end (S170); And
Nanoparticle-coated paper container manufacturing method comprising a; bottom paper attaching step (S190) is attached to the bottom paper constituting the bottom surface of the container in the lower contact portion of the side paper on which the second coating layer is formed.
A first coating layer forming step of forming a first coating layer on one surface of a base paper (S210);
A side paper forming step of forming side paper by punching on the base paper on which the first coating layer is formed (S230);
At least one end of both ends of the formed side paper is immersed in the second coating solution containing the nanoparticles (S250);
A second coating layer forming step (S270) in which the second coating solution is dried to form a second coating layer at the one end; And
Nanoparticle-coated paper container manufacturing method comprising a; bottom paper attachment step (S290) is attached to the bottom surface constituting the bottom surface of the container in the lower contact portion of the side paper on which the second coating layer is formed.
A first coating layer forming step of forming a first coating layer on one surface of a base paper (S310);
Forming a side paper by punching the base paper on which the first coating layer is formed (S330);
A second coating solution brushing step (S350) in which a second coating solution containing nanoparticles is coated on at least one of both ends of the formed side paper by a brush;
A second coating layer forming step of drying the second coating solution to form a second coating layer at one end (S370); And
And a bottom paper attaching step (S390) to which bottom paper constituting the bottom of the container is attached to a lower contact portion of the side paper on which the second coating layer is formed.

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