KR20240082274A - Eco-friendly packaging container for products and method of preparing the same - Google Patents

Abstract

The present invention relates to an eco-friendly product packaging container made of paper, which is used to prevent damage to products when packaging various products, and a method of manufacturing the same. The eco-friendly product packaging container of the present invention conveys the characteristics of the product well while also protecting the human body. Because it is made from paper, an eco-friendly material that is harmless to the environment, it can provide excellent effects to maximize recycling while minimizing environmental pollution.

Description

Eco-friendly product packaging container and manufacturing method thereof {ECO-FRIENDLY PACKAGING CONTAINER FOR PRODUCTS AND METHOD OF PREPARING THE SAME}

The present invention relates to an eco-friendly product packaging container and a manufacturing method thereof, and more specifically, to a method of manufacturing an eco-friendly product packaging container that does not use plastic, which is used to prevent damage to products when packaging various products. .

Transparent plastic containers are mainly used as packaging containers for displaying the contents of products so that they can be viewed from the outside. These plastic transparent containers are widely used in the packaging of almost all products due to the advantages of being easy to form, mass-produced, and inexpensive to manufacture. However, these plastic product packaging containers do not decompose semi-permanently when landfilled and remain in the ground, causing serious environmental pollution. In addition, harmful gases and environmental hormones are generated during incineration, so plastic product packaging containers must be disposed of. There is a problem of a high load on the city's environment.

In order to respond to the serious global climate crisis, the international community has declared carbon neutrality and is actively pursuing greenhouse gas reduction policies. In order to overcome the problem of high environmental load of plastic product packaging containers, attempts are being made to reduce the amount of plastic used in the production stage and increase the recycling rate of waste plastic. However, there is no alternative to using plastic, so plastic product packaging is still ongoing. Containers are mainly used. Therefore, there is an urgent need for the development of product packaging containers using eco-friendly materials that can reduce environmental load.

KR 20-2015-0001698 A KR 10-2012-0012382 A

The present invention is intended to solve the problems of the prior art described above, and one object of the present invention is to secure the structural stability of the product during transportation or display, thereby safely protecting the product, while reducing the environmental load and making it easy to recycle. To provide eco-friendly product packaging containers and their manufacturing methods.

Another object of the present invention is to provide a method of manufacturing eco-friendly product packaging containers that can accelerate the spread of paper product packaging containers by improving workability and productivity when manufacturing product packaging containers made of paper, where production costs are rising. will be.

One aspect of the present invention to solve the above-described problem is,

A plate-shaped substrate on which a paper pocket is fixed,

* It relates to an eco-friendly product packaging container that includes one or more paper pockets that protrude from one or both sides of the plate-shaped substrate and form a space for accommodating the product.

In the present invention, the plate-shaped substrate is composed of cardboard with a laminated structure,

The paper pocket may include a product receiving space for accommodating the product and a border portion formed around the product receiving space and bonded between two or more sheets of cardboard to secure the paper pocket to the plate-shaped substrate.

The plate-shaped substrate is composed of several layers of paper. For example, if it consists of one or more sheets of outer paper and one or more sheets of inner paper, the inner paper can be general manila paper or

It can be made of paper with at least one of wrinkles or embossing.

A printed layer with a design identical to the shape of the product or a description of the product may be formed on one or more surfaces of the paper pocket, for example, the front.

The externally exposed surface of the plate-shaped substrate may not be coated, but may be glossy or matte, and the printing layer may be matte or glossy. ) can be formed.

In the present invention, the paper pocket may include an eco-friendly coating layer formed by coating an eco-friendly coating agent and a printing layer formed on a flat area of the front of the paper pocket.

The product packaging container of the present invention may include an opening window open to the outside that can expose at least a portion of the product on the plate-shaped substrate or on the front of the paper pocket.

The product packaging container includes a plurality of paper pockets of different shapes and sizes, and each paper pocket may have an opening window open to the outside that can partially expose products of the same or different shape and size.

An eco-friendly transparent film may be attached to the opening window to protect products stored in the paper pocket from contaminants such as dust.

In the paper pocket of the eco-friendly product packaging container of the present invention, one or more support protrusions made of paper or pulp may be formed to support the product in the width direction of the product. Meanwhile, in the present invention, the paper pocket may be formed to include a curved surface. In the present invention, the pulp portion can be formed by pressure molding or 3D printing using a pulp mold.

A fixing band made of paper or an eco-friendly transparent film material may be formed in the opening window of the paper pocket to secure the product. If the fixing band is made of paper, it may be formed integrally from the cardboard forming the paper pocket. .

Another aspect of the present invention to solve the above-mentioned problem is,

Manufacturing a plate-shaped substrate made of paper that is folded into two sheets and has an opening for inserting a paper pocket on one or more sides;

After trimming the base paper for forming a paper pocket, forming at least one three-dimensional paper pocket having a product storage space and an edge extending outward from the bottom surface of the paper pocket;

It relates to a method of manufacturing an eco-friendly product packaging container including the step of inserting and fixing (attaching) the edge of the paper pocket to the opening of the plate-shaped substrate.

The plate-shaped substrate preparation step is

Forming a printing layer on cardboard for forming a plate-shaped substrate;

uncoating the printed cardboard, coating it with a glossy coating, or coating it with a matte coating;

It involves laminating manila paper or corrugated paper to coated or uncoated printed cardboard.

The paper pocket forming step is,

Printing a printing layer on the surface of the base paper for forming a paper pocket, which becomes the front surface when inserted into a plate-shaped substrate, and optionally forming an eco-friendly coating layer;

Cutting the printed base paper into a shape for manufacturing a product packaging container and then forming a bent portion;

It may include forming a paper pocket by molding the base paper obtained in the previous step into a three-dimensional shape and bonding the folded sides together to form a product storage space.

Since the present invention manufactures existing plastic product packaging containers with paper, an eco-friendly material that is harmless to the human body or the environment, it can provide an excellent effect of maximizing recycling while minimizing environmental pollution.

According to the eco-friendly packaging container of another embodiment of the present invention, the product can be checked through an opening formed on the front of the paper pocket of the product packaging container, so it can be advantageously used for packaging food, etc., where confirmation of contents is required. This embodiment Even in , the amount of plastic used can be dramatically reduced to more than 1/10.

In addition, the eco-friendly product packaging container of the present invention has support protrusions formed in the paper pocket to fit the shape of the product, so that products of various shapes can be safely stored during display or movement of the product.

The present invention uses a base paper to which an eco-friendly coating agent has been applied, which not only has excellent regeneration, but is also easy to naturally decompose, and has excellent water resistance, oil resistance, barrier properties, and moisture resistance.

Additionally, since no plastic material is used according to the method of the present invention, the inconvenience of having to separate and dispose of paper and plastic when discarding after use can be reduced.

Figure 1 is a plan view of the base paper for forming the plate-shaped substrate and paper pocket of an eco-friendly product packaging container according to an embodiment of the present invention.
Figure 2 shows the manufacturing process of an eco-friendly product packaging container according to an embodiment of the present invention, and is a schematic perspective view showing a state in which a three-dimensional paper pocket is inserted into a plate-shaped substrate.
Figure 3 is a diagram of a paper pocket being inserted and fixed into two openings of a plate-shaped substrate in an eco-friendly product packaging container according to an embodiment of the present invention.
Figure 4 is a diagram showing a process in which a paper pocket is formed on one side of a plate-shaped substrate in an eco-friendly product packaging container according to another embodiment of the present invention.
Figure 5 is a schematic perspective view of an eco-friendly product packaging container according to an embodiment of the present invention.
Figure 6 is a plan view of a plate-shaped substrate for manufacturing an eco-friendly product packaging container according to another embodiment of the present invention and a schematic perspective view of a completed eco-friendly product packaging container.

Hereinafter, the present invention will be described in more detail with reference to the attached drawings.

The thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. Throughout the specification, similar parts are described using the same reference numerals.

Unless otherwise defined, all terms used in this specification may be used with meanings that can be commonly understood by those skilled in the art.

When it is said that a part "includes" a certain element throughout the specification, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary. Additionally, the singular also includes the plural unless specifically stated.

In the present invention, ‘corrugated paper’ refers to a laminated cardboard whose strength is improved by inserting wavy paper between the liner paper (front paper) and the liner paper (back paper).

In the present invention, the base paper used to form the plate-shaped substrate or paper pocket may be coated or uncoated cardboard, and is generally formed in 3 or 5 layers. For example, if it is not coated, printing paper, base paper, corrugated paper, or manila paper may be laminated, and if it is coated, a coating layer may be formed on the printing layer.

Figure 1 is a plan view of the base paper for forming the plate-shaped substrate and paper pocket of an eco-friendly product packaging container according to an embodiment of the present invention, and Figure 2 shows the manufacturing process of an eco-friendly product packaging container according to an embodiment of the present invention. This is a schematic perspective view showing a state in which a paper pocket made in a three-dimensional shape is inserted into a plate-shaped substrate, and Figure 3 is a paper pocket inserted into two openings of the plate-shaped substrate in an eco-friendly product packaging container according to an embodiment of the present invention. This is a drawing in a fixed state.

Referring to Figures 1 and 2, one aspect of the present invention is to form a plate-shaped substrate 100 on which a paper pocket 200 is fixed and to protrude on one or both sides of the plate-shaped substrate, thereby forming a space ( It includes one or more paper pockets 200 forming 210).

It is known that the plastic part of a conventional plastic product packaging container takes 450 years to naturally decompose, while paper products coated with plastic film, such as milk cartons, take about 5 years. In the product packaging container of the present invention, the plate-shaped base material 100 and the pocket 200 for storing the product are all formed of paper, so that it can be decomposed in a short period of time and does not separate the paper part from the plastic part even when discarding or recycling. They can be processed together, providing convenient benefits.

The plate-shaped substrate 100 of the eco-friendly product packaging container of the present invention may have any appropriate shape or size. In the present invention, the plate-shaped substrate 100 is made of cardboard with a laminated structure, and the paper pocket 200 is formed around a product receiving space 210 that accommodates the product and the product receiving space 210, and has a plate shape. It includes an edge portion 240 extending outward in all directions based on the bottom surface of the product receiving space 210, which is adhered to the substrate 100 and fixes the paper pocket 200 to the plate-shaped substrate 100. At this time, during the manufacturing process of the product packaging container of the present invention, the edge portion 240 is glued between the first and second sides 101 and 101' of cardboard folded in half, so that it is not visible from the outside, so it has an attractive appearance. have

The plate-shaped substrate 100 may be formed by attaching one or more outer sheets to one or more inner sheets with an adhesive and stacking them. It is preferable that the inner sheet consists of one sheet, but two or more sheets may be provided as needed. Two or more sheets of outer paper may be attached during the preparation stage, but in this case, it is preferable to attach them so that they are wrapped on both sides with the inner paper sandwiched between them. The inner layer helps maintain the shape of the outer layer and has a cushioning effect. The inner paper may be plain manila paper or may include wrinkles or an embossed structure such as ribbed paper. The corrugation is composed of a corrugated core and a liner attached to the upper and lower surfaces of the corrugated media, so that when an external force is applied, the wrinkles are first straightened before being destroyed, thereby cushioning the deformation caused by the external force, and the embossing structure can act similarly.

There are no particular restrictions on the plate-shaped substrate 100 used in the present invention, and hard paper conventionally used as a plate-shaped substrate for product packaging containers can be used. For example, any material that can be used to make packaging boxes, such as corrugated cardboard, white cardboard, and manila cardboard, can be used. Additionally, the plate-shaped substrate 100 may be formed of a composite material including paper pulp and bamboo fiber. The pulp/fiber combination is advantageous because it is environmentally safe and recyclable.

In the eco-friendly product packaging container of the present invention, the paper pocket 200 may be formed to protrude from both sides of the plate-shaped substrate, as shown in FIG. 3. In this embodiment, two paper pockets 200, 200' are respectively inserted into the two openings 130, 130' of the plate-shaped substrate 100, and after storing the product, the folded first side 101 and the first surface 101 of the plate-shaped substrate are The two sides 101' are glued together. Alternatively, the paper pocket 200 may be formed to protrude from one side of the plate-shaped substrate 100, as shown in FIG. 4. In this embodiment, an opening 130 is formed in the plate-shaped substrate 100, and the paper pocket 200 is inserted into this opening 130.

Referring to Figures 1 and 3, in the present invention, the paper pocket 200 is formed of coated paper, and the base paper for forming the paper pocket 200 is the same as or different from the base paper for forming the plate-shaped substrate 100. It may be raw paper. In the present invention, the paper pocket 200 is

Any material that can be used to make packaging boxes, such as corrugated cardboard, white cardboard, and manila cardboard, can be used.

* In the present invention, a printing layer (not shown) formed on one or more surfaces of the paper pocket of the base paper 201, for example, the front surface area; And it includes an eco-friendly coating layer 203 formed by selectively coating an eco-friendly coating agent. The eco-friendly coating layer 203 may be coated with an eco-friendly coating agent having excellent water resistance and oil resistance.

The ink used to form the printing layer (not shown) may be soybean oil ink, algae ink, rice oil ink, etc., which are in the spotlight as eco-friendly.

Eco-friendly coatings are based on water-dispersible acryl co-polymer. In the coating agent, the water-soluble resin may be a mixture of one or more selected from acrylic emulsion, methylolated urea emulsion, methylolated melanin emulsion, carboxymethyl cellulose emulsion (CMC), and ethylene vinyl acetate resin (EVA) emulsion. At this time, the acrylic emulsion preferably has a glass transition temperature (Tg) of -5 to 40°C, a solid content of 30 to 50%, a viscosity of 30 to 500 cps, and has water and oil resistance properties.

In the present invention, the surface of the plate-shaped substrate 100 may not be coated, but in the case where it is coated, it is formed to be glossy and the print layer is formed to be matte, creating contrasting textures. By displaying the printed layer (not shown), effects such as being able to stand out more can be obtained. Conversely, the same effect can be obtained even if the surface of the plate-shaped substrate is formed as matte and the printing layer 202 is formed as glossy.

The first side 101 and the second side 101' constituting the plate-shaped substrate 100 are connected at one end and folded over one another with respect to the center 120 to form a single piece, or are formed as one piece of cardboard (101). , 101') may be formed through lamination after each formation. The first side 101 and the second side 101' can be joined by high-frequency coating on one or both sides after inserting the product into the paper pocket 200.

A printing layer (not shown) on which a design identical to the shape of the product or a description of the product is printed may be formed on the front of the paper pocket 200. In the product packaging container of the present invention, the pocket in which the product is stored is made of paper instead of transparent plastic, so that the consumer can intuitively check the product by printing a design identical to the appearance of the product on the printing layer (not shown). can do. Alternatively, the printing layer can be designed in various shapes that can make the product to be packaged stand out even if it does not necessarily have the same design as the product.

Referring to FIG. 5, an opening window 270 open to the outside will be formed on one or more surfaces, especially the front, of the paper pocket of the eco-friendly product packaging container of an embodiment of the present invention to allow the product to be viewed from the outside. You can. This opening 270 can be formed by punching in a processing process (eg, Thompson process) of the base paper forming the paper pocket 200.

In the eco-friendly product packaging container of the present invention, the paper pocket 200 may be formed to protrude from both sides of the plate-shaped substrate, as shown in FIG. 3, or may be formed to protrude from one side, as shown in FIG. 4. there is. The opening window 270 can be formed according to each embodiment so that the front of the product can be clearly seen. For example, as shown in FIG. 5, when the paper pocket 200 is formed to protrude, an opening window 270 may be formed on the front of the protruding paper pocket. Alternatively, as shown in FIG. 6 , when the opening window 270 is formed in the plate-shaped substrate 100, the opening 130 of the plate-shaped substrate 100 may be formed as the opening window 270.

Referring to FIG. 6, the opening window 270 has a vertical length L1 of the paper pocket 200 inside the paper pocket 270 to prevent the packaging product stored inside from moving up and down. It can be formed to be equal to or shorter than the length (L2) of the accepted product.

One or more fixing bands 150 may be formed in the opening window 270 of the paper pocket 200 to secure the product. When the opening window 270 is formed to be almost the same size as the paper pocket, the fixing band 150 is especially required. For example, as shown in FIG. 5, when the paper pocket 200 is formed to protrude from the plate-shaped substrate 100, an opening window 270 is formed on the front of the protruding paper pocket 200, thereby forming a paper pocket. A fixing band 150 may be formed on the opening window 270. Alternatively, as shown in FIG. 6, when the opening window 270 is formed in the plate-shaped substrate 100, the opening window 270 is formed integrally as a part of the plate-shaped substrate during the cutting process of the plate-shaped substrate 100. It can be. The fixing band 150 may be formed in various shapes or numbers so as to constitute a design element in addition to simply supporting the product to be packaged, and various designs or shapes may be printed on the fixing band 150 as well.

Optionally, for aesthetics, the fixing band 150 may be separately manufactured and attached using a printed, eco-friendly transparent film, etc.

In the present invention, a perforation line 280 may be formed in the opening window 270 formed in the plate-shaped substrate 100 or the paper pocket 200 so that the product can be easily opened and removed without the help of tools such as scissors or a knife. there is.

Cut lines 280 may be additionally formed on two or more of the three corners of the product cut surface 275 of the opening window 270, and these cut lines 280 face each other with the opening window 270 in between. It may be formed on one of the two cutting surfaces 275 or on both sides.

The cut line 280 may be formed along the perimeter of the cut surface 275 on the opening window 270, in a straight shape on one or more sides of the cut surface 275, or along the perimeter of two of the four sides. It may be formed in an 11' or 'L' shape or in a "ㄷ" shape. Existing plastic product packaging containers have the problem of being difficult to open without scissors or a knife, but according to an embodiment of the present invention, the product can be easily taken out by cutting along the perforation line 280 around the product support surface.

This perforation line 280 may be formed by methods such as chemical processing, laser scoring, laser perforation, mechanical scoring, mechanical perforation, embossing, and Thomson. The perforation line 280 may be formed on the processed base paper before forming the paper pocket.

The shape of the product contained in the product packaging container is very diverse, so a space is created between the product and the paper pocket, and the product stored in the paper pocket will rattle inside the paper pocket unless a special means of fixing it to the plate-shaped substrate is used. The pocket may be torn. In the present invention, one or more support protrusions (not shown) extending in the width direction of the product from the wall of the paper pocket toward the product may be formed to secure the product contained within the paper pocket 200. For example, a support protrusion is formed to protrude from the inside of the paper pocket 200 toward the product, so that the product contained within the paper pocket is pressed with a predetermined force, thereby suppressing the shaking of the product as much as possible during transportation, creating a paper pocket ( 200). The support protrusions may be made of paper.

Additionally, the paper pocket 200 may include a pulp portion (not shown) formed in a three-dimensional shape corresponding to the shape of the product. The pulp portion is particularly suitable for receiving products having shapes including various curved surfaces, and can be formed by pressure molding or 3D printing using a recycled paper pulp mold. For example, the pulp part can be produced into shapes that correspond to various shapes of the product by crushing natural pulp, adding water, dissolving and stirring to create pulp juice, then forming it through a molding device, drying it, shaping it, and grinding it. The pulp part itself has shock absorption properties, can be three-dimensionally molded into various shapes, has the advantage of being light in weight, and has the advantage of being able to recycle waste resources.

Meanwhile, an eco-friendly transparent film (not shown) may be attached to the opening window 270 of the paper pocket to prevent dust from accumulating or foreign substances from entering the product when it is displayed on the shelf for a long time. The transparent film is made of materials such as PLA (Poly Lactic Acid), an eco-friendly resin made from corn starch extraction raw materials, or biodegradable bioplastics (e.g., polycaprolactone, polylactic acid, polyhydroxyalkanoate, polybutyl). A transparent film made of rensuccinate and combinations thereof, which is excellent in transparency, strength, abrasion resistance, weather resistance, heat resistance, etc., can be used. In this way, even if an eco-friendly transparent film is additionally attached to the opening window 270, the amount of plastic used can be dramatically reduced by more than 95% compared to existing plastic packaging containers.

Since the eco-friendly product packaging container of the present invention can respond to various product shapes, when various products are packaged as one, such as set packaging of cosmetics or household goods, a plurality of paper pockets 200 are formed, and each product can be checked as a whole. Even if there is no number, a plurality of opening windows 270 may be formed so that at least partial confirmation can be performed.

Another aspect of the present invention relates to a method of manufacturing an eco-friendly product packaging container.

When manufacturing an eco-friendly product packaging container according to the present invention, a plate-shaped substrate 100 made of paper is manufactured by folding each other to form two sheets and having openings 130 and 130' on one or more sides for inserting a paper pocket. do. Next, after trimming the base paper to form the paper pocket 200, a three-dimensional product storage space 210 and an edge portion 240 around the product storage space 210 are formed. An eco-friendly product packaging container can be manufactured by inserting the edge portion 240 of the paper pocket 200 into the openings 130 and 130' of the plate-shaped substrate and fixing (attaching) the plate-shaped substrate by folding and high-frequency bonding.

In the step of preparing the plate-shaped substrate 100, a printing layer and optionally an eco-friendly coating layer are formed on the cardboard forming the plate-shaped substrate 100, a glossy coating or a matte coating is applied to the printed cardboard, and the printed cardboard is coated or uncoated. Golgi can be laminated to .

When forming the paper pocket 200, a printing layer (not shown) is printed on one or more surfaces, for example, the front surface, when inserted into the plate-shaped substrate 100. Next, the printed base paper is cut into a shape for manufacturing a product packaging container and then a folded bent part 220 is formed. Then, the obtained base paper is folded by pressure molding, etc., and the adhesive surfaces 230 are adhered to each other to create a three-dimensional shape. A shaped product storage space 210 is formed, and an edge portion 240 for adhering to the plate-shaped substrate 100 is folded.

After inserting the product into the paper pocket 200, the coating agent on the contact surface of the plate-shaped substrate 100 functions as an adhesive, and after inserting the product into the paper pocket 200, the plate-shaped substrate 100 is placed on top of each other and heat sealed (heat seal). The eco-friendly product packaging container of the present invention can be manufactured by bonding using a seal, high frequency, or ultrasonic bonding method. Alternatively, eco-friendly product packaging containers can be manufactured by bonding with adhesive.

There is no particular limitation on the types of products stored and fixed in the product packaging container of the present invention, and examples include electrical and electronic components, stationery, pharmaceuticals, cosmetics, beverages, photographic films, batteries, and other daily necessities.

Although the preferred embodiments of the invention have been described in detail above, the scope of the invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the invention as defined in the following claims are also included in the scope of the invention. belongs to

* 100: plate-shaped substrate
101: Page 1
101': Page 2
110: cardboard
120: center line
130: opening
150: Fixed band
200: paper pocket
210: Product storage space
220: bending part
230: Adhesive side
250: border part
270: opening
275: cut surface
280: perforation line

Claims (6)

It includes a plate-shaped substrate on which a paper pocket is fixed and one or more paper pockets that protrude from one or both sides of the plate-shaped substrate to form a space for receiving a product,
An eco-friendly product comprising an opening window open to the outside that can expose at least a portion of the product formed on the plate-shaped substrate or on the front of the paper pocket, and a biodegradable transparent film is attached to the opening window. Product packaging container.
The eco-friendly product packaging container according to claim 1, wherein one or more support protrusions are formed within the paper pocket, extending from a side wall of the pocket toward the product to support the product in the width direction of the product.
The eco-friendly product packaging container according to claim 1, wherein the bioplastic is selected from the group consisting of polycaprolactone, polylactic acid, polyhydroxyalkanoate, polybutylene succinate, and combinations thereof.
The eco-friendly product packaging container according to claim 1, wherein the paper pocket includes an eco-friendly coating layer formed by coating an eco-friendly coating agent and a printing layer formed on a flat area of at least one side of the paper pocket.
The eco-friendly product packaging container according to claim 4, wherein a design identical to the shape of the product, a description of the product, or a design that makes the product stand out is printed on the surface of the printed layer.
The eco-friendly product packaging container according to claim 1, wherein the plate-shaped substrate is formed of a composite material including paper pulp or bamboo fiber.