KR20200032627A - Packaging container and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a packaging container with a structure capable of being easily and safely handled and opened, and a manufacturing method thereof. According to an embodiment of the present invention, the packaging container comprises: a body having a hollow formed therein and having a curled part with a shape wound from the inside to the outside formed at one end; and a lid coupled to the curled part at an edge thereof. The body comprises: a core layer; a first layer formed on the core layer and placed inside the body; and a second layer formed on the core layer to be symmetric to the first layer based on the core layer, and placed outside the body. The lid comprises: a coupling layer coupled to the first layer in the curled part of the body; a metal layer formed on the coupling layer; and an outer skin layer formed on the metal layer to be symmetric to the coupling layer based on the metal layer.

Description

Packaging container and manufacturing method thereof

An embodiment relates to a packaging container having a structure that can be easily and safely handled and opened by a user, and a manufacturing method therefor.

The content described in this section merely provides background information for the embodiment and does not constitute a prior art.

Containers for packaging contents that need to be preserved are generally sealed after being placed in a container to protect the contents from water, water, light, and other substances.

In addition, the packaging container should be provided so that the user can easily open the contents for use. Conventionally, for sealing the packaging container, a metal plate having a relatively thick and hard to deform rigidity was bonded to the packaging container using seaming.

When the packaging container is sealed using such a metal plate, when a user opens the packaging container, a tool capable of applying a large force or applying a large force by hand is used, or a tool for tearing the metal plate is used.

This conventional packaging container opening process causes inconvenience to the user, and in particular, a user's hand is cut on a sharp edge portion of a metal plate that is difficult to deform during the opening process.

Therefore, improvement is necessary.

Accordingly, the embodiment relates to a packaging container having a structure that can be easily and safely handled and opened by a user, and a manufacturing method therefor.

The technical problems to be achieved by the embodiments are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which the embodiments belong from the following description.

One embodiment of the packaging container, the body to form a hollow and a curl portion having a shape wound from the inside to the outside at one end is formed (curl) body; And a lid coupled to the curl at the edge, wherein the body comprises: a central layer; A first layer formed on the center layer and disposed inside the body; And a second layer formed on the central layer so as to be symmetrical to the first layer with respect to the central layer, and disposed on the outer side of the body, wherein the lid is the first layer in the curl portion of the body. A bonding layer to be combined with; A metal layer formed on the bonding layer; And an outer layer formed on the metal layer to be symmetric with the bonding layer based on the metal layer.

In the body, a neck-in having a shape recessed inward is formed at a position corresponding to a position where the curl portion is disposed, and the lead may include a gripper protruding from an edge.

The center layer may be formed of a material containing at least one of iron, aluminum, zinc, nickel, chromium, and tin, and the metal layer may be formed of a material containing aluminum.

An embodiment of the packaging container may be formed between the center layer and the first layer, and may further include a third layer that adheres the center layer and the first layer to each other.

One embodiment of the packaging container may be formed between the center layer and the second layer, and may further include a fourth layer that adheres the center layer and the second layer to each other.

The second layer may be formed of a varnish material, and the third layer and the fourth layer may be formed of at least one of acrylic, epoxy, and vinyl resin.

The first layer and the bonding layer may be formed of the same material.

The first layer and the bonding layer may be formed of polyethylene (PE) material.

The outer layer may be formed of polyethylene telephthalate (PET) material.

One embodiment of a method for manufacturing a packaging container, a preparation process for preparing the body and the lead; A neck-in forming process of forming a neck-in having a shape recessed inward at a position corresponding to a position where the curl portion is disposed; A curling process of forming the curl on one end of the body; An attachment process of heating and pressing the body and the lead to attach to each other; And it may include a cutting process for cutting the lead to correspond to the shape of the body.

In an embodiment, when the user opens the packaging container, the lead can be easily removed using a hand or a simple mechanism, so that the user's convenience can be improved.

In an embodiment, since the packaging container is sealed using a lead made of a flexible material, when the user opens the packaging container, it is possible to effectively suppress the user from being injured by a sharp fracture surface of the conventional non-flexible metal sealing portion. have.

In the conventional case, the packaging container forms a flange protruding from the one end of the opening of the packaging container to the inside or outside of the packaging container for sealing, and the sealing portion is attached to the flange by seaming. In the embodiment, because of the above structure, by not performing the conventional flange formation and seaming, the production cost and production time of the product are reduced compared to the conventional one, thereby improving the productivity of the packaging container product.

In an embodiment, since sufficient sealing of the packaging container for product storage can be secured by a simple process of forming the curl portion and bonding the lead to the curl portion, the production cost of the product can be lowered to improve the productivity of the product.

1 is a perspective view showing a packaging container of one embodiment.
Figure 2 is a cross-sectional view showing a packaging container of an embodiment.
3 is an enlarged view of part A in FIG. 2.
4 is an enlarged view of part B in FIG. 2.
5 is an enlarged view of part C in FIG. 2.
6 is a flowchart illustrating a method of manufacturing a packaging container in one embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiment may be variously modified and may have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, it is not intended to limit the embodiment to a specific disclosure form, it should be understood that it includes all modifications, equivalents, or substitutes included in the spirit and scope of the embodiment.

Terms such as "first", "second", etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used to distinguish one component from other components. In addition, terms specifically defined in consideration of the configuration and operation of the embodiments are only for describing the embodiments and do not limit the scope of the embodiments.

In the description of the embodiment, when described as being formed on the "top (top)" or "bottom (bottom) (on or under)" of each element, the top (top) or bottom (bottom) (on or under) ) Includes both two elements directly contacting each other or one or more other elements formed indirectly between the two elements. In addition, when expressed as “up (up)” or “down (down)” (on or under), it may include the meaning of the downward direction as well as the upward direction based on one element.

In addition, relational terms, such as "top / top / top" and "bottom / bottom / bottom" as used below, do not necessarily require or imply any physical or logical relationship or order between such entities or elements, It can also be used to distinguish one entity or element from another.

1 is a perspective view showing a packaging container of one embodiment. Figure 2 is a cross-sectional view showing a packaging container of an embodiment. 3 is an enlarged view of part A in FIG. 2. 4 is an enlarged view of part B in FIG. 2. 5 is an enlarged view of part C in FIG. 2.

The packaging container of the embodiment can contain and seal various types of contents, and the contents are not limited to foods and other industrial products, solids, liquids, large chunks, or powders, and can be carried by the user. It can be of a variety of sizes and masses.

The packaging container may include a body 100 and a lid 200 (lid). When taking out the contents stored in the packaging container, the user can easily remove the lid 200 from the body 100 using a hand or other simple tool.

For example, referring to FIG. 1, the lid 200 may include a gripper 240 that is protruding from the edge. When taking out the contents from the packaging container, the user can easily remove the lid 200 from the body 100 by pulling the gripper 240 to open the packaging container, and then take out the contents from the packaging container.

The body 100 forms a hollow 10, and at one end, a curl portion 110 having a shape wound from inside to outside may be formed. If the body 100 forms a hollow 10 containing the contents, its cross-sectional shape may be variously provided.

In FIG. 1, a body 100 having a cylindrical cross-section is illustrated, but this is only an example, and the cross-section of the body 100 may have various shapes. For example, the cross section of the body 100 may have a quadrangular shape, a hexagonal shape, a polygonal shape, an oval shape, or the like.

The curl portion 110, as shown in Figures 2 and 5, from the inside of the body 100 at one end of the body 100 from the inside with the hollow 10 of the body 100, that is, of the body 100 It may be formed in a shape wound toward the outside. The curl portion 110 may be a portion where the lid 200 to be described later is coupled to the body 100. The curl part 110 may be formed using, for example, a press processing device (not shown).

Meanwhile, a neck-in 150 having a shape recessed inward of the body 100 may be formed in the body 100 at a position corresponding to a position where the curl part 110 is disposed. By forming the neck-in 150 in the body 100, it is possible to prevent the curl portion 110 from protruding to the outside of the body 100 excessively, suppressing the body 100 from being easily deformed by external force, and the user It can improve the usability of packaging containers.

The body 100 may be provided with a material and a thickness that are not easily deformed by external force to protect the contents to be accommodated, and include a central layer 120, a first layer 130, and a second layer 140 You can. At this time, the first layer 130 and the second layer 140 may be formed on the central layer 120 by coating and lamination. Similarly, the third layer 160 and the fourth layer 170 below may also be formed on the central layer 120 by a coating lamination method.

The center layer 120 may be provided with a material and a thickness that is not easily deformed by external force, and may include, for example, at least one of iron, aluminum, zinc, nickel, chromium, and tin, or a mixture thereof. You can.

The first layer 130 is formed on the central layer 120 and may be disposed inside the body 100 (indicated by 'in' in FIGS. 3 and 4). It is appropriate that the first layer 130 is provided with a corrosion-resistant material in order to prevent the contents contained in the packaging container from being contaminated or damaged due to corrosion of the corrosive central layer 120.

In addition, since the first layer 130 is combined with the bonding layer 210 of the lead 200 below by heating, it is appropriate to be provided with a thermoplastic material. To satisfy these conditions, for example, the first layer 130 may be formed of a polyethylene (PE) material that is a thermoplastic resin and has excellent corrosion resistance.

The second layer 140 is formed on the central layer 120 so as to be symmetric with the first layer 130 with respect to the central layer 120, as shown in FIG. 3, the body 100 ) May be disposed outside (indicated as 'out' in FIGS. 3 and 4).

The second layer 140 is formed on the outermost outer side of the packaging container to suppress corrosion of the corrosive center layer 120. In addition, since it forms the outer surface of the packaging container, it is appropriate to be provided with a material that can feel aesthetic sense in appearance. Therefore, for example, the second layer 140 may be formed of a varnish material to satisfy these conditions.

If necessary, the contents of the contents may be displayed on the surface of the second layer 140, or patterns, designs, trademark information, or other contents that can add aesthetic sense may be printed.

In addition, the body 100 may further include a third layer 160 and a fourth layer 170. At this time, the third layer 160 is formed on the central layer 120 in a coating and lamination method, and the first layer 130 is formed on the third layer 160 in a coating and lamination method to form the body 100 The inside of the body is manufactured, the fourth layer 170 and the second layer 140 are sequentially coated and laminated on the center layer 120 so that the outside of the body 100 may be manufactured.

The body 100 is manufactured in the form of a flat plate having the first layer 130 to the fourth layer 170 formed on the central layer 120, and then bending it to form a circular, elliptical or polygonal cross-section. It can be manufactured by attaching the ends to each other.

The third layer 160 may be formed between the center layer 120 and the first layer 130. The third layer 160 attaches the central layer 120 and the first layer 130 to each other, and together with the first layer 130, the packaging container due to corrosion of the corrosive central layer 120 It is possible to prevent the contents contained in the soil from being contaminated or damaged.

Therefore, it may be appropriate to be provided with a material having strong adhesion and strong corrosion resistance so as to firmly bond the center layer 120 and the first layer 130 of different materials to each other.

In order to satisfy these conditions, for example, it is appropriate that the third layer 160 is formed of at least one material of acrylic, epoxy and vinyl resin. Of course, if the material satisfies the above conditions, the third layer 160 may be formed of materials other than the above-mentioned materials.

The fourth layer 170 may be formed between the center layer 120 and the second layer 140. The fourth layer 170 adheres the central layer 120 and the second layer 140 to each other, and together with the second layer 140, can suppress corrosion of the corrosive central layer 120. have.

Therefore, it may be appropriate to be provided with a material having strong adhesion and strong corrosion resistance to firmly bond the center layer 120 and the second layer 140 of different materials to each other.

In order to satisfy these conditions, for example, it is appropriate that the fourth layer 170 is formed of at least one material of acrylic, epoxy, and vinyl resin. Of course, if the material satisfies the above conditions, the fourth layer 170 may be formed of materials other than the above-mentioned materials.

At this time, the third layer 160 and the fourth layer 170 may be provided with the same material as each other, or may be provided with different materials.

The lead 200 may close the one side opening by engaging the lead 200 at one side opening of the body 100. Meanwhile, contents may be injected into the body 100 through the other side opening of the body 100 (an opening opposite to the one side opening). After the contents are injected, the other side opening is closed with a separate cover (not shown).

Unlike the lid 200, the cover is provided so that the user cannot easily remove it from the body 100, so that the contents contained in the packaging container are not easily spilled out of the packaging container by the user's handling. Do.

The lead 200 is coupled to the curl portion 110 at the edge, and may include a bonding layer 210, a metal layer 220, and an outer layer 230. At this time, the surfaces of the first layer 130, which is the bonding portion of the body 100, and the surface of the bonding layer 210, which is the bonding portion of the lid 200, are brought into contact with each other, the lid 200 and the body 100 are heated, and the lid ( When 200) is pressed onto the body 100, the first layer 130 and the bonding layer 210 can be melted together and easily combined with each other.

When the user opens the packaging container, when the user pulls the gripper 240 with an appropriate force, the first layer 130 and the bonding layer 210 are separated from each other, and thus, the lid 200 is removed from the body 100. It can be easily removed.

The lid 200 can be conveniently removed by the user using a hand or other tool, and needs to be provided so that the user is not injured when the lid 200 is removed. Therefore, it is appropriate that the lid 200 is provided with a flexible material and thickness compared to the body 100 to be convenient and safe for the user. On the other hand, while handling the packaging container, it is necessary to prevent the contents of the packaging container from spilling due to the damage of the lid 200 due to a light external force.

Therefore, in order to satisfy the above conditions, it may be appropriate for the lead 200 to be formed by coating and laminating layers of different materials on a solid metal thin film. Therefore, the lead 200 may be formed to include the bonding layer 210, the metal layer 220, and the outer layer 230.

The bonding layer 210 may be combined with the first layer 130 in the curl portion 110 of the body 100. The bonding layer 210 may be in contact with the first layer 130 as described above, and may be combined with the first layer 130 by heating and pressing.

In addition, the bonding layer 210 is formed on the metal layer 220 to prevent the metal layer 220 from being corroded and contaminating or damaging the contents of the packaging container, and conversely, the contents of the packaging container to corrode the metal layer 220. Can be suppressed.

Since the bonding layer 210 is combined with the first layer 130 by heating and pressing, it may be appropriate that the bonding layer 210 and the first layer 130 are formed of the same material for easy bonding. . Therefore, the bonding layer 210 may be formed of, for example, a polyethylene material, like the first layer 130.

The metal layer 220 may be formed on the bonding layer 210. Since the metal layer 220 is formed of a metal material, it is possible to effectively suppress the entire lead 200 from being damaged by external force.

However, for convenience and safety of the user, since the metal layer 220 should be flexible, it is appropriate to be formed of a thin film having a thin thickness compared to the central layer 120 of the body 100. In addition, it is appropriate to be formed of a material having strong corrosion resistance to protect the contents of the packaging container. In order to satisfy these conditions, the metal layer 220 may be formed of, for example, a material containing aluminum.

The outer layer 230 may be formed on the metal layer 220 to be symmetric with the bonding layer 210 based on the metal layer 220. Since the outer layer 230 is provided on the outermost side of the lead 200 to protect the metal layer 220, it is appropriate that the outer layer 230 is made of a material having high corrosion resistance and high strength and hardness. In order to satisfy these conditions, the outer layer 230 may be formed of, for example, polyethylene telephthalate (PET) material.

In an embodiment, when the user opens the packaging container, the lid 200 can be easily removed using a hand or a simple mechanism, so that the user's convenience can be improved.

In an embodiment, since the packaging container is sealed by using the flexible material lead 200, when the user opens the packaging container, it is effective that the user is injured by a sharp fracture surface of the conventional non-flexible metal sealing portion. Can be suppressed.

In the conventional case, the packaging container forms a flange protruding from the one end of the opening of the packaging container to the inside or outside of the packaging container for sealing, and the sealing portion is attached to the flange by seaming. In the embodiment, because of the above structure, by not performing the conventional flange formation and seaming, the production cost and production time of the product are reduced compared to the conventional one, thereby improving the productivity of the packaging container product.

In an embodiment, since a sufficient process of packaging containers for product storage can be secured by a simple process of forming the curl part 110 and coupling the lead 200 to the curl part 110, the production cost of the product is lowered. Product productivity can be improved.

6 is a flowchart illustrating a method of manufacturing a packaging container in one embodiment. The packaging container manufacturing method may include a preparation process (S100), a neck-in formation process (S200), a curling process (S300), an attachment process (S500), and a cutting process (S600).

In the preparation process (S100), the body 100 and the lead 200 are provided. As described above, after the body 100 is manufactured in the form of a flat plate, it can be manufactured by bending it to make a cross section into a circular, elliptical or polygonal shape and attaching side ends to each other.

At this time, the body 100 is provided in a form in which the center layer 120, the first layer 130, and the second layer 140 are stacked according to an embodiment, or the center layer 120, the first layer The 130 to fourth layer 170 may be provided in a stacked form. The lead 200 may be provided in a form in which the bonding layer 210, the metal layer 220, and the outer layer 230 are stacked, and may be provided in the form of a thin film.

In the neck-in forming process (S200), a neck-in 150 having a shape recessed inward may be formed at a position corresponding to a position where the curl part 110 is disposed. The neck-in forming process (S200) may be performed using, for example, a press processing device (not shown).

In the curling process (S300), the curl portion 110 may be formed at one end of the body 100. The curl part 110 may be formed by winding one end portion of the body 100 on which the neck-in 150 of the body 100 is formed from the inside of the body 100 toward the outside. Likewise, the curling process (S300) may be performed using the press mill factory value.

In the attachment step (S500), the body 100 and the lead 200 may be attached to each other by heating and pressing. The first layer 130 of the body 100 and the bonding layer 210 of the lead 200 have plasticity by heating, and may be attached to each other by pressing, that is, bonding.

At this time, it is appropriate that the first layer 130 and the bonding layer 210 are heated to a temperature such that they are attached to each other by pressing, so the heating temperature of the first layer 130 and the bonding layer 210 is the first. It may be appropriately selected according to the material of the layer 130 and the bonding layer 210.

At this time, as shown in FIG. 5, the lid 200 may be coupled to the body 100 at an edge, that is, a portion where the curl portion 110 of the body 100 is formed. Due to this structure, the area of the portion where the lid 200 is coupled to the body 100 is considerably smaller than the entire area of the lid 200, so the user can simply remove the lid 200 by hand to open the packaging container. Can be opened.

In the cutting process (S600), the lead 200 may be cut to correspond to the shape of the body 100. In the cutting process (S600), after completing the attachment process (S500), except for the portion where the lid 200 is coupled to the body 100, the remaining unnecessary portions can be removed.

At this time, the lid 200 may be cut into an appropriate shape with a cutting means so that the user can use it when opening the packaging container, thereby forming the gripper 240 that the user can hold by hand.

Although only a few are described as described above in connection with the embodiments, various other forms of implementation are possible. The technical contents of the above-described embodiments may be combined in various forms, unless the technologies are incompatible with each other, and may be implemented as a new embodiment.

10: hollow
100: body
110: curl part
120: center layer
130: first floor
140: second layer
150: neck in
160: third layer
170: 4th floor
200: lead
210: bonding layer
220: metal layer
230: outer layer
240: gripper

Claims (10)

A body which forms a hollow and has a curl portion having a shape wound from the inside to the outside at one end and is formed; And
A lid that engages the curl at the edge
Including,
The body,
Central layer;
A first layer formed on the center layer and disposed inside the body; And
The second layer is formed on the center layer to be symmetric with the first layer based on the center layer, and is disposed outside the body.
Including,
The lead,
A bonding layer coupled with the first layer at the curl portion of the body;
A metal layer formed on the bonding layer; And
An outer layer formed on the metal layer to be symmetrical to the bonding layer based on the metal layer
Containing,
Packaging container. According to claim 1,
In the body, a neck-in having a shape recessed inward is formed at a position corresponding to a position where the curl portion is disposed,
The lid is a packaging container characterized in that it comprises a gripper (gripper) that protrudes on the edge. According to claim 1,
The central layer is formed of a material containing at least one of iron, aluminum, zinc, nickel, chromium and tin,
The metal layer is a packaging container characterized in that it is formed of a material containing aluminum. According to claim 1,
A packaging container formed between the center layer and the first layer, and further comprising a third layer adhering the center layer and the first layer to each other. According to claim 4,
A packaging container formed between the center layer and the second layer, and further comprising a fourth layer adhering the center layer and the second layer to each other. The method of claim 5,
The second layer is formed of a varnish material,
The third layer and the fourth layer is a packaging container, characterized in that formed of at least one material of acrylic, epoxy and vinyl resin. According to claim 1,
The packaging container characterized in that the first layer and the bonding layer are formed of the same material. The method of claim 7,
The first layer and the bonding layer is a packaging container, characterized in that formed of a polyethylene (PE) material. According to claim 1,
The outer packaging layer is a packaging container characterized in that it is formed of a polyethylene telephthalate (PET) material. In the packaging container manufacturing method of claim 1,
A preparation process of providing the body and the lead;
A neck-in forming process of forming a neck-in having a shape recessed inward at a position corresponding to a position where the curl portion is disposed;
A curling process of forming the curl on one end of the body;
An attachment process of heating and pressing the body and the lead to attach to each other; And
Cutting process for cutting the lead to correspond to the shape of the body
Containing,
Packaging container manufacturing method.

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