KR20200072707A - Disposable cooking container and method for manufacturing disposable cooking container - Google Patents

Abstract

The present invention relates to a disposable cooking container and a method for manufacturing the disposable cooking container manufactured by polypropylene (PP) resin coating on the inner surface of a paper material harmless to the human body. According to the present invention, the paper material is bent and given a container shape during the manufacturing of the container used for cooking. The PP resin coating is performed on the inner surface, the four corners are overlapped, bent, and bonded, and then a novel and completely sealable food cooking container is realized. As a result, the manufacturing can be facilitated and economical, a high level of airtightness can be ensured, both handling and use can be convenient, and the container completely harmless to the human body can be used for safe cooking and eating.

Description

Disposable cooking container and manufacturing method{DISPOSABLE COOKING CONTAINER AND METHOD FOR MANUFACTURING DISPOSABLE COOKING CONTAINER}

The present invention relates to a disposable cooking container capable of cooking instant foods such as ramen, and more particularly, to a disposable cooking container prepared by coating a PP resin on an inner surface of a paper material harmless to the human body and a method of manufacturing the same.

In recent years, with high economic growth and rapid changes in living standards, our social environment and lifestyle, especially the lifestyle, have changed significantly.

Modern people have pursued simplicity in a complex life, and eating out is gradually becoming a part of life due to the improvement of living standards due to economic growth. As a result, the prosperity of the food service industry and the use of instant convenience foods are rapidly increasing.

In addition, the market for instant convenience foods is increasing year by year as the number of five-day workweeks increases and leisure life such as camping increases.

Usually, instant convenience foods are mostly cooked in a sealed food container and cooked in a microwave.

The food cooking container is composed of a container body having a space formed therein and an upper portion open, and a lead film covering an open upper portion of the container body, and after placing food and beverage inside the container body, the container body is made of a lead film. It will be made in the form of sealing the upper portion of.

Therefore, there is convenience of cooking because food is cooked by putting the food cooking container containing food in the microwave and then turning the microwave for a predetermined time, and heat generated by colliding water molecules of moisture contained in the food. Since it is a cooking method using, there is an advantage that can be quickly cooked.

Currently, most food cooking containers, especially those used in microwave ovens, are made of plastic material or aluminum material, and thus, during the cooking process, ingredients harmful to the human body are absorbed into the food contained in the container.

Plastic food containers are known to have carcinogenic substances when the container is deformed above 70℃, and various kinds of additives included in the product molding process are known to emit environmental hormones. Or when exposed to oil or the like, there is a characteristic that harmful substances are gradually discharged into the ash.

Accordingly, the present invention is a food and drink container made of a paper material harmless to the human body that can replace the conventional plastic material or aluminum material not suitable for food and drink containers.

Korean Patent Registration No. 10-1489800 Korean Patent Publication No. 10-2012-0006863 Korean Patent Publication No. 10-2007-0076774 Korean Patent Publication No. 10-2016-0124487 Korean Patent Publication No. 10-2018-0089010

Therefore, the present invention has been devised in view of this point, and when manufacturing a container used for food and beverage production, a paper material is bent and manufactured in a container shape, and a PP resin (polypropylene resin) is coated on the inner surface. By bending and adhering the four corners overlapping and adhering, it realizes a new type of food cooking container that can be completely sealed, making it easy to manufacture, economical, and excellent airtightness. Therefore, it is an object of the present invention to provide a disposable cooking container and a manufacturing method that can be cooked by eating food with confidence.

In order to achieve the above object, the disposable cooking container provided by the present invention has the following features.

The disposable cooking container is made in the form of a square container of paper material having a bottom plate and four side plates and a cover plate, and the connecting portions constituting the edges between the respective side plates are triangular edge plates extending from each adjacent side plate. In addition to being joined through the inner surfaces of each other on the outside, the corner plates joined in two layers are bent to the outer surface of either side plate, thereby forming a joined structure.

Here, the upper side of the side plate is bent horizontally bent from the side plate is formed integrally formed, respectively, the cover plate may be bonded to the upper surface of each wing plate formed in this way.

In addition, a polypropylene resin may be coated on the inner surface of the bottom plate and the side plate, the inner surface of the cover plate, the inner surface of the corner plate, and the inner surface of the wing plate.

On the other hand, the method for manufacturing a disposable cooking container provided by the present invention to achieve the above object has the following features.

The disposable cooking container manufacturing method comprises a first step of preparing a disc and a cover plate made of a paper material, a first curve forming a quadrangular shape in the center of the disc, and radially at each corner of the first curve A second step of forming two successive second bending curves, partitioning the bottom plate, the side plate, and the edge plate, and folding the side plate using the first bending curve, and using the second bending curve to form the edge plate The third step of folding two layers at the same time and joining the inner surfaces of the corner plates that are in contact with each other, and the fourth step of folding the corner plates joined by two layers to the outer surface of the side plates by using the second bending curve overlapping each other. And a fifth step of bonding the cover plate to the upper end of the side plate and closing the inside of the container.

Here, the second step further includes a process of forming each third bending curve on four outer portions of the original plate to partition the wing plate from the side plate, and the third step uses the third bending curve to form the wing plate. It may include a process of folding horizontally, and in the fifth step, a step of bonding the cover plate to the horizontally folded wing plate may be further included.

In addition, the original plate is coated with a PP resin (polypropylene resin) on the inner surface. Therefore, bonding is performed by using the adhesive strength of the melted PP resin by heat fusion during bonding in the third to fifth steps. Can.

The disposable early container and manufacturing method provided by the present invention have the following effects.

First, by manufacturing a paper material that is harmless to the human body, even when cooking such as heating, harmful ingredients are not absorbed at all, so there is an effect that the food can be cooked and eaten with confidence.

Second, when manufacturing a container, a single disc paper material is completely folded and manufactured without attaching several pieces, so that waste of materials such as scrap can be prevented, can be easily produced, and can significantly reduce manufacturing cost. .

Third, the four corners of the container are finished by bending and adhering in multiple layers to secure the perfect sealing structure for the corners of the container, thereby improving the airtightness and enhancing the convenience and functionality. There is.

Fourth, by using the PP resin coated on the inner surface of the paper material to melt and attach the PP material in a heat-sealable manner when bonding after bending the container, the number of adhesive application processes can be minimized, such as manufacturing efficiency through simplification of the manufacturing process. It has the effect of improving.

1 and 2 is a perspective view showing a disposable cooking container according to an embodiment of the present invention
Figure 3 is a cross-sectional view showing a disposable cooking container according to an embodiment of the present invention
4A to 4E are schematic views showing a method of manufacturing a disposable cooking container according to an embodiment of the present invention
5 is a developed view showing a disposable cooking container according to another embodiment of the present invention

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

1 and 2 is a perspective view showing a disposable cooking container according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing a disposable cooking container according to an embodiment of the present invention.

1 to 3, the disposable cooking container is a rectangular bottom plate 10, side plates 11a to 11d which are substantially vertically erected from four sides of each bottom plate 10, and the bottom Of the paper material having a cover plate 12 including a handle 21 as well as closing the space portion (for example, a space portion containing food) formed inside the plate 10 and the side plates 11a to 11d. It will be made in the form of a square container.

In particular, each of the connecting portions constituting four corners between the side plates 11a to 11d is adjacent to each side plate 11a to 11d, that is, two side plates 11a, 11b, and 11b that form corners in contact with each other. And 11c, 11c and 11d, 11d and 11a), and can be closed by triangular corner plates 13a and 13b formed integrally.

For example, the edge plates 13a and 13b formed integrally extending from the two adjacent side plates (for example, 11a and 11b) are formed by bending outwards of the edges formed by the side plates (for example, 11a and 11b). In the protruding state, the inner surfaces that come into contact with each other are joined, and the corner plates 13a, 13b joined in two layers are bent together toward the outer surface of either side plate (for example, 11a or 11b), and the side plates at this time (for example, 11a or 11b).

Accordingly, the four corners between each of the side plates 11a to 11d can be closed by bending and joining the two-ply corner plates 13a and 13b, and in the end, four corners between each of the side plates 11a to 11d. The edge of the can achieve a perfect sealing structure, so that the contents inside the container can be completely blocked.

At this time, among the edge plates 13a and 13b overlapped with the two layers, one edge plate 13a has a relatively short height compared to the other edge plate 13b, and as a result, the other edge plate ( In 13b), an exposed surface (reference numeral 19 in FIGS. 4A to 4C) in which a part of the upper inner surface naturally comes out can be formed.

Therefore, when the double-bonded corner plates 13a, 13b are joined while being bent together toward the outer surface of the side plate (for example, 11a or 11b), they are coated on the exposed surface 19 of the corner plate 13b. It can be adhered by the melt adhesion of the PP resin, and in the end, the two-layer corner plates 13a, 13b can be adhered without using a separate adhesive.

As another example, when bonding using the melt adhesion of the PP resin coated on the exposed surface 19, a known adhesive is also applied to the outer surface of the edge plate 13a positioned in the same direction as the exposed surface 19. The outer surface of the corner plate 13a may also be joined together with the exposed surface 19.

And, the upper end of the side plates (11a to 11d) is a wing plate (14) is formed integrally extending, the wing plate (14) extending in this way is bent horizontally from the side plates (11a to 11d) forming a substantially vertical, The cover plate 12 can be joined to the upper surface of each wing plate 14 at this time, that is, the upper surface of the four wing plates 14 possessed by the four side plates 11a to 11d.

As a preferred embodiment, the entire inner surface of the original material of the paper material constituting the bottom plate 10, the side plates 11a to 11d, the cover plate 12, the edge plates 13a, 13b, and the wing plate 14 has a predetermined thickness. The PP resin layer 20 is formed, and a part of the PP resin layer 20 at this time can take the role of an adhesive when bonding between the plate and the plate and the cover plate 12 in a molten state through thermal fusion. There will be.

For example, the PP resin layer 20 formed on the inner surfaces of the corner plates 13a, 13b can serve as an adhesive when bonding between the corner plates 13a, 13b, and the inner surface of the wing plate 14 Among the PP resin layer 20 formed on the inner surface of the PP resin layer 20 and the cover plate 12, the area corresponding to the area of the PP resin layer 20 at the edge portion, that is, the wing plate 14 is The branched PP resin layer 20 can replace the role of an adhesive when bonding between the wing plate 14 and the cover plate 12.

Here, the method of coating the PP resin on the inner surface of the original material of the paper and the method of heat-sealing the PP resin layer can be applied to a known coating method or a heat-sealing method, so a detailed description thereof will be omitted.

In this way, the disposable cooking container provided in the present invention is made of a paper material, so that no harmful substances are generated even when heated, and thus it is harmless to the human body. Since there is no part to cut or cut pieces, it can be manufactured very economically at a low cost and can be easily manufactured.In particular, the four corners of the container are double-bonded with two layers of corner plates (13a, 13b). Since it can be finished in the form, it can secure the airtightness such as blocking the contents from leaking, so it has an excellent advantage in terms of functionality as well as use and handling.

4A to 4E are schematic views showing a method of manufacturing a disposable cooking container according to an embodiment of the present invention.

4A to 4E, as a first step, a step of preparing the original plate 15 and the cover plate 12 made of a paper material is performed.

The original plate 15 is in the form of a substantially rectangular plate, which may be applied to a paper material itself, but is preferably coated with a PP resin coated by a known coating method over the entire inner surface of the original plate.

The outer line of the original plate 15 is a predetermined shape using a known cutting machine (not shown), for example, the outer line shape of the edge plates 13a, 13b described later, and the outer line shape of the wing plate 14 Can be cut to have.

Particularly, in the case of the corner plates 13a and 13b formed on the original plate 15, one of the corner plates 13a among the two corner plates 13a and 13b connected to each other is the other corner plate 13b. By cutting the outer line so as to have a relatively short height (length), when joining the corner plates 13a, 13b in two layers in the third step described later, the other corner plate 13b is naturally part of the upper part. It is possible to have the exposed surface 19 with the inner surface coming out.

The cover plate 12 is also in the form of a substantially rectangular plate, which may be of paper material itself, but it is preferable to apply a coating treatment of PP resin by a known coating method over the entire inner surface of the original plate.

At this time, in the case of the cover plate 12, the handle 21 may be formed in a protruding form at one corner portion.

Next, as a second step, a plurality of bending lines are formed on the original plate 15 by using a known bending line (folding line) forming method, and the steps are divided into plates serving as respective roles.

Here, the bending line (folding line) may be formed by a known method such as cutting a knife line, processing shallowly with a laser cutting machine, or applying pressure to the paper folding portion (coming).

To this end, the first bending curves 16a to 16d forming a quadrangular shape are formed in the central region of the disk 15 to partition the bottom plate 10 corresponding to the inner region of the bending curve, and the first bending curve Four side plates 11a to 11d adjacent to each other on the four sides of the bottom plate 10 by forming three second bending curves 17a to 17c extending radially from each corner portion of (16a to 16d) The two corner plates 13a, 13b, ie, eight corner plates 13a, 13b, which are connected to each of the side plates 11a-11d are partitioned.

In this second step, each of the third bending curves 18a to 18d is formed parallel to the first bending curves 16a to 16d at the four outer edges of the original plate 15, that is, at the edges of the side plates 11a to 11d. By doing so, the wing plate 14 can be partitioned.

The wing plate 14 is connected to the side plates 11a to 11d with the third bending curves 18a to 18d interposed therebetween, and both ends of the third bending curves 18a to 18d are side plates 11a to 11d ) And the outer ends of the second bending curves 17a and 17c forming a boundary between the corner plates 13a and 13b.

Next, as a third step, a step of folding and erecting the side plates 11a to 11d and the edge plates 13a and 13b is performed using respective bending lines.

That is, the side plates 11a to 11d are folded and built using the first bending curves 16a to 16d forming a boundary with the bottom plate 10, and at the same time, the second edge plates 13a and 13b that are built together are second. Use the bend lines 17a to 17c to fold so that they overlap in two layers so as to extend outwardly.

Here, the corner plates (13a, 13b) are folded inward by the second bending curve (17b) in the middle, it is possible to overlap each other in the state of the inner surface.

Then, the inner surfaces of the corner plates 13a, 13b are joined by a heat-sealing method using PP resin coated on the inner surface of the corner plates with the double-layered corner plates 13a, 13b as an adhesive.

In addition, in the third step, a process of horizontally folding the wing plate 14 using the third bending curves 18a to 18d may be performed.

When the process is completed up to step 3, as shown in FIG. 4C, a square container shape is formed by the bottom plate 10 and the side plates 11a to 11d standing up, and the edge plates 13a and 13b are side plates. It is in the state protruding outward from each corner of (11a-11d).

Next, as a fourth step, the steps of folding and bonding the edge plates 13a, 13b overlapped in two layers to the side plates 11a-11d are simultaneously bonded and processed.

That is, as the edge plates 13a and 13b are overlapped and joined in two layers, the side plates 11a to 11d are folded by folding the edge plates 13a and 13b to one side using the second bending curves 17a and 17c overlapping each other. The two layers of corner plates 13a, 13b are attached to the side plates 11a to 11d by using the adhesive strength of the PP resin coated on the exposed surface 19 on the edge plate 13b at this time. Can be joined.

Or, when bonding using the melt adhesion of the PP resin coated on the exposed surface 19, after applying a known adhesive to the outer surface of the edge plate 13a located in the same direction as the exposed surface 19 , At this time, the outer surface of the corner plate 13a may also be joined together with the exposed surface 19.

Next, as a fifth step, after filling predetermined contents in the spaces formed inside the bottom plate 10 and the side plates 11a to 11d, the step of sealing with the cover plate 12 is performed.

That is, the inside of the container is closed by bonding the cover plate 12 to the upper end of the side plates 11a to 11d, but the cover plate 12 is mounted on the wing plate 14 horizontally folded to the upper end of the side plates 11a to 11d. After covering, the wing plate 14 and the cover plate 12 are joined by using the melt adhesion of the PP resin coated on the inner surfaces of the wing plate 14 and the cover plate 12.

When all of the first to fifth steps are completed in this way, as shown in FIG. 4E, a rectangular shape disposable cooking container made of paper material can be manufactured.

5 is an exploded view showing a disposable cooking container according to another embodiment of the present invention.

As shown in FIG. 5, the disposable cooking container is a rectangular bottom plate 10, side plates 11a to 11d which are substantially vertically erected from four sides of each bottom plate 10, and the bottom plate 10 ) And the space portion (for example, a space portion containing food) formed inside the side plates 11a to 11d, and a rectangular container shape of a paper material having a cover plate 12 including a handle 21. It is made with.

In particular, each of the connecting portions constituting four corners between the side plates 11a to 11d is adjacent to each side plate 11a to 11d, that is, two side plates 11a, 11b, and 11b that form corners in contact with each other. And 11c, 11c and 11d, 11d and 11a), and can be closed by triangular corner plates 13a and 13b formed integrally.

For example, the edge plates 13a and 13b formed integrally extending from the two adjacent side plates (for example, 11a and 11b) are formed by bending outwards of the edges formed by the side plates (for example, 11a and 11b). In the protruding state, the inner surfaces that come into contact with each other are joined, and the corner plates 13a, 13b joined in two layers are bent together toward the outer surface of either side plate (for example, 11a or 11b), and the side plates at this time (for example, 11a or 11b).

Accordingly, the four corners between each of the side plates 11a to 11d can be closed by bending and joining the two-ply corner plates 13a and 13b, and finally, four corners between each of the side plates 11a to 11d. The edge of the can achieve a perfect sealing structure, so that the contents inside the container can be completely blocked.

At this time, among the edge plates 13a and 13b overlapped with the two layers, one edge plate 13a has a relatively short height compared to the other edge plate 13b, and as a result, the other edge plate ( In 13b), an exposed surface (reference numeral 19 in FIGS. 4A to 4C) in which a part of the upper inner surface naturally comes out can be formed.

Therefore, when the double-bonded corner plates 13a, 13b are joined while being bent together toward the outer surface of the side plate (for example, 11a or 11b), they are coated on the exposed surface 19 of the corner plate 13b. It can be adhered by the melt adhesion of the PP resin, and in the end, the two-layer corner plates 13a, 13b can be adhered without using a separate adhesive.

As another example, when bonding using the melt adhesion of the PP resin coated on the exposed surface 19, a known adhesive is also applied to the outer surface of the edge plate 13a positioned in the same direction as the exposed surface 19. The outer surface of the corner plate 13a may also be joined together with the exposed surface 19.

And, the upper end of the side plates (11a to 11d) is a wing plate (14) is formed integrally extending, the wing plate (14) extending in this way is bent horizontally from the side plates (11a to 11d) forming a substantially vertical, The cover plate 12 can be joined to the upper surface of each wing plate 14 at this time, that is, the upper surface of the four wing plates 14 possessed by the four side plates 11a to 11d.

In particular, in the case of the disposable cooking container according to another embodiment of the present invention, when sealing the container with the cover plate 12, it includes a structure capable of securing airtight performance for the four corners of the container.

To this end, the wing plate sealing portion having a width equal to the width of the wing plate 14 is extended at both ends of the two wing plates 14 at positions facing each other among the four wing plates 14. 22 is formed.

Accordingly, the wing plate sealing portion 22 of the wing plate 14 in the form of the container is joined while overlapping the upper or lower end of the end of the neighboring wing plate 14, and in this state, the cover plate 12 By being joined to the wing plate 14, the wing plate 14 can be a continuous shape without breaking over the entire circumference of the container, and thus it is possible to completely seal the corners of the four containers.

As a preferred embodiment, the entire inner surface of the original material of the paper material constituting the bottom plate 10, the side plates 11a to 11d, the cover plate 12, the edge plates 13a, 13b, and the wing plate 14 has a predetermined thickness. The PP resin layer 20 is formed, and at this time, a part of the PP resin layer 20 can replace the role of an adhesive when bonding between the plate and the plate and the cover plate 12 in a molten state through thermal fusion. There will be.

For example, the PP resin layer 20 formed on the inner surfaces of the corner plates 13a, 13b can serve as an adhesive when bonding between the corner plates 13a, 13b, and the inner surface of the wing plate 14 Among the PP resin layer 20 formed on the inner surface of the PP resin layer 20 and the cover plate 12, the area corresponding to the area of the PP resin layer 20 of the edge portion, that is, the wing plate 14 The branched PP resin layer 20 can replace the role of an adhesive when bonding between the wing plate 14 and the cover plate 12.

Here, the method of coating the PP resin on the inner surface of the original material of the paper and the method of heat-sealing the PP resin layer can be applied to a known coating method or a heat-sealing method, so a detailed description thereof will be omitted.

As described above, according to the present invention, when manufacturing a container used for cooking food, the paper material is bent and molded to form a container, and a new food cooking container is completely closed by overlapping and bonding four corners of the container. It is easy to manufacture and use, and can be manufactured very economically, and it can be used with confidence because it is easy to handle and use, as it can secure excellent airtightness, and is completely harmless to the human body.

10: bottom plate
11a-11d: Side plate
12: cover plate
13a,13b: corner plate
14: wing plate
15: original plate
16a~16d: 1st bending curve
17a~17c: second bending curve
18a to 18d: third bending curve
19: exposed surface
20: PP resin layer
21: handle
22: wing plate seal

Claims (6)

The bottom plate 10 and the side plates 11a to 11d of the four sides and the cover plate 12 are formed in the form of a rectangular container made of paper, and the connecting portions forming corners between the side plates 11a to 11d are adjacent to each other. The corner plates 13a, 13b formed by extending from each of the side plates 11a-11d are joined through the inner surfaces of each other from the outside of the side plates 11a-11d, and the corner plates 13a, 13b joined together in this way. ) Is disposable cooking container characterized in that it is made of a bonded structure while bending to the outer surface of one of the side plates (11a to 11d).
The method according to claim 1,
At the upper end of the side plates 11a to 11d, the wing plates 14 formed by bending horizontally from the side plates are formed, respectively, and the cover plate 12 is joined to the upper surface of each of the wing plates 14 thus formed. Disposable cooking container characterized by.
The method according to claim 1 or claim 2,
PP resin (polypropylene resin) is provided on the inner surface of the bottom plate 10 and the side plates 11a to 11d, the inner surface of the cover plate 12, the inner surface of the edge plates 13a and 13b, and the inner surface of the wing plate 14 Disposable cooking container characterized in that the coating.
The first step of preparing the original plate 15 and the cover plate 12 made of a paper material;
The first bending curves 16a to 16d forming a quadrangular shape in the center of the disk 15, the third bending curves 17a extending radially from each corner portion of the first bending curves 16a to 16d A second step of forming ∼17c) and partitioning the bottom plate 10, side plates 11a-11d and corner plates 13a, 13b;
The side plates 11a to 11d are folded by using the first bending curves 16a to 16d, and the corner plates 13a and 13b are folded in two layers by using the second bending curves 17a to 17c at the same time. A third step of joining the inner surfaces of the abutting edge plates 13a, 13b;
A fourth step of folding the edge plates 13a, 13b joined in two layers to the outer surfaces of the side plates 11a-11d by using the second bending curves 17a, 17c overlapping each other;
A fifth step of closing the inside of the container by bonding the cover plate 12 to the upper end of the side plates 11a to 11d;
Disposable cooking container manufacturing method comprising a.
The method according to claim 4,
The second step further includes the step of partitioning the wing plate 14 from the side plates 11a to 11d by forming respective third bending curves 18a to 18d on four outer portions of the original plate 15, The third step includes the process of horizontally folding the wing plate 14 using the third bending curves 18a to 18d, and in the fifth step, the cover plate 12 is attached to the wing plate 14 folded horizontally. ) The method of manufacturing a disposable cooking container further comprising the step of bonding.
The method according to claim 4 or claim 5,
The original plate 15 is coated with a polypropylene resin (PP) on the inner surface, so bonding is performed using the adhesive strength of the molten PP resin by heat fusion during bonding in steps 3 to 5. Disposable cooking container manufacturing method, characterized in that.

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