JP2010254340A - Paper-made container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an approximately bowllike container in which the shape of the bottom part which can be molded with a paper is approximately spherical. <P>SOLUTION: A paper-made container is prepared by using an approximately fanlike paper-made sheet with a number of channel parts in the short arc side part direction. The fanlike paper-made sheet is wound on an approximately deep bowllike and wooden bowllike mold for molding in which the bottom direction is formed into a curved face, to mold it into a bowl with a bottom part cavity, and in addition, a bottom part sheet is arranged in the bottom part cavity to seal the bottom part to prepare an approximately bowllike paper-made container. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a paper container, and particularly to a paper container having a spherical bottom surface.

Conventionally, the bottom surface of a paper container is often used with a flat bottom surface, and a substantially cup-shaped container composed of a substantially cylindrical body and a flat bottom has been used. It is what.
Instead of paper, for example, a container using a polystyrene resin foam sheet or the like, which is used as a container for instant noodles, etc. Exists.

This is to form a container using a polystyrene resin-based foamed sheet or the like as described above in order to form the peripheral shape of the container neatly and improve heat insulation and to facilitate moldability. .
For example, JP-A-10-16025 (Patent Document 1), JP-A 2000-95888 (Patent Document 2), and JP-A-2001-161534 (Patent Document 3).

Alternatively, there are JP-A-8-207051 (Patent Document 4) and JP-A-2003-26143 (Patent Document 5) as paper containers for putting instant noodles and liquids with paper.
In place of these, Japanese Patent Application Laid-Open No. 2006-341911 (Patent Document 6) exists in which a container having a substantially bowl shape such as a so-called bowl is formed of paper.

JP-A-10-16025 JP 2000-95888 A JP 2001-161534 A JP-A-8-207051 JP 2003-26143 A JP 2006-341911 A

As described above, heat-insulated containers such as imperial noodles using a polystyrene resin-based foam sheet, etc., use foam sheets, and because they can not only use heat-insulating outer walls, but also are made of resin. It is easy to mold and can be formed with a clean outer peripheral shape.
However, since it is made of resin, it has a drawback that the plasticizer may flow out into hot water.
In addition, special treatment is required after sorting.

Furthermore, it is a petroleum product, and may be depleted in the future, and there is a possibility that the oil price may fluctuate due to various situations. It is unstable in terms of stable supply at a low price.
In recent years, however, conversion to paper products is inevitably required, and a container that can be manufactured using paper is desired.
In this case, Patent Document 4 and Patent Document 5 described above exist as paper containers, and these are formed of a so-called cup-shaped outer shape having a truncated cone shape in terms of molding.

In contrast to this, unlike the shape of a heat-insulating container such as a bowl-shaped instant noodle using the polystyrene resin foam sheet or the like, which is widely used at present, it is a container having a shape different from a so-called bowl type.
In other words, it is easy to cause the contents to remain in the corners of the container, and molding that requires a special configuration that increases special adhesion to prevent water leakage from the boundary between the bottom surface and the body portion. There are disadvantages such as difficulty in workability and high cost.
In addition to these, there is also the provision of a bowl-shaped container as shown in Patent Document 6.

However, in this configuration, it is press molding, and in particular, press molding is performed after scoring is formed.
Therefore, not only has an extremely complicated process, but also requires sophisticated and precise equipment.
Further, since deep drawing press molding, wrinkles are inevitably generated even if scoring processing is performed in a portion where the drawing is tight, and it is difficult to achieve clean molding.
In addition, because of scoring formation, an extremely large number of scratches are made on the outer surface.

In particular, the bottom portion is pulled carelessly, so that many wrinkles are likely to occur around the entire bottom and the body, and wrinkles remain on the heel.
Moreover, although it is press molding, making the mold of a desired unevenness | corrugation and curved shape, and also maintaining it requires the presence of very sophisticated and precise equipment.
Accordingly, this configuration also has drawbacks in various respects such as removal of wrinkles, securing the shape retention of the container, and preventing damage to the container.

In particular, the cost is high due to the necessity of extremely sophisticated and strict scoring processing, and some solution is required.
Therefore, it is desired to provide a bowl-shaped paper container having a substantially bowl shape with less wrinkles, which can be molded more easily and without cost.

  Therefore, the invention according to claim 1 of the present invention is a bowl-shaped substantially bowl-shaped paper container using a substantially fan-shaped paper sheet having a number of grooves in the direction of the short arc side, A fan-shaped paper sheet is wrapped around a bowl-shaped, roughly-shaped mold, formed into a bowl shape with a bottom cavity, and a bottom sheet is placed in the bottom cavity to seal the bottom. The above-mentioned problems can be solved by the invention.

According to the second aspect of the present invention, a sheet having a bottom cavity is formed by winding a substantially fan-shaped paper sheet around a bowl-shaped substantially bowl-shaped molding die and then crimping it with a female die. It is a substantially bowl-shaped paper container formed into a bowl shape, and such a configuration may be used.
In addition, as in the third aspect of the invention, a substantially bowl-shaped paper container having a large number of groove portions extending from the center portion of the sheet to the short arc side portion in the arc axis direction of the substantially fan-shaped sheet. May be used.

Further, as in the invention described in claim 4, it is preferable to have a protruding row instead of the groove.
In these cases, even if the bottom sheet is disposed on the inner surface of the paper sheet formed into a bowl shape having the bottom cavity according to the invention described in claim 5, the bottom cavity is provided as in the invention according to claim 6. The bottom sheet may be disposed on the outer surface of a paper sheet formed into a bowl-like shape.
Furthermore, the bottom sheet may be disposed on the inner surface and the outer surface of the paper sheet formed into a bowl shape having a bottom cavity as in the seventh aspect of the invention.

In these cases, the resin sheet may be disposed on the entire inner surface of the paper sheet formed into a bowl shape as in the invention described in claim 8.
Alternatively, as in the invention according to claim 9, the bowl-shaped substantially bowl-shaped paper container changes the ratio between the bottom surface and the height to increase the ratio of the height, and substantially controls the direction of the bottom of the substantially cup shape. A paper container molded into a bowl-shaped curved surface may be used.

Since it comprised as mentioned above, according to the invention which concerns on Claim 1, the container by which the bottom part was comprised with the spherical curved surface using a paper raw material can be manufactured, and leakage of contents, such as a water | moisture content, by a bottom sheet | seat It can be prevented.
In particular, it is possible to reduce the wrinkles as much as possible after forming the bottom shape as a spherical curved surface, and it is possible to provide a good-looking container.
According to the second aspect of the present invention, the substantially fan-shaped sheet can be easily and inexpensively formed into a substantially bowl-like shape having a bottom cavity whose bottom shape is a spherical curved surface by the molding die and the female die. Is.

Further, according to the invention of claim 3, by forming a large number of grooves, it is possible to absorb wrinkles by the grooves at the time of narrowing during molding, reducing wrinkles to the container body as much as possible, A clean container with a small curved surface can be molded.
The invention according to claim 4 can absorb wrinkles by the dents on the opposite side of the protruding row even by the protruding row, and at the time of molding, a linear regular mark along this protruding row is formed, but by narrowing down at the time of molding It is possible to prevent the occurrence of irregular and twisted or many types of wrinkles that are very bad in appearance, and it is possible to form a container having a good-looking curved surface.

According to the invention of claim 5, by attaching the bottom sheet to the inner surface of the container, it becomes possible to cover the uneven part of the groove part after narrowing in the container, and the contents are inadvertently accumulated in the uneven part. Can be prevented.
Further, the bottom sheet is attached to the inner surface, and the bottom sheet can be prevented from being accidentally detached.
Next, according to the invention which concerns on Claim 6, it will have a bottom part sheet | seat on an outer surface, and it can cover the wrinkles by the groove part of an external expense surface, and can provide a good-looking container.

According to the invention of claim 7, it is possible to provide a container having the advantages of claims 5 and 6.
In addition, according to the invention according to claim 8, the resin sheet is disposed on the entire inner surface of the container, which is extremely effective for preventing water leakage into the container, and the inner surface is clean and smooth. It will be possible to.
Furthermore, according to the invention according to claim 9, it is not limited to the so-called bowl shape but can be used for a container having a cup shape and a curved shape in the bottom direction. It can be done.

The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of a substantially fan-shaped paper sheet The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows an example of the manufacturing process of the paper containers concerning this invention The figure which shows another example of the paper containers based on this invention

  FIG. 1 is a diagram showing an example of a manufacturing process of a paper container according to the present invention.

First, the configuration shown in FIG. 1 is composed of a substantially fan-shaped paper sheet 1 and a mandrel M, which is a core metal for winding the sheet.
First, the molded metal core M has a wide upper edge that approximates a so-called bowl-shaped container shape of a bowl shape using, for example, a commonly used polystyrene resin foam sheet. The opening diameter is slightly narrowed little by little up to the center of the container, but it has a shape that is shaped like a bowl-shaped container having a substantially bowl shape in which the diameter is suddenly narrowed near the bottom.

The paper sheet 1 arranged with respect to the molding core M is further wound around the molding core with arm-shaped flaps, winding rollers or the like from both sides, for example, to form a container shape.
In this case, the sheet 1 is substantially fan-shaped and has a large number of groove portions 12 in the direction of the short arc side portion 11.
A large number of the grooves 12 are arranged in the direction of the short arc side 11 toward the arc axis direction of the sheet 1, and the grooves 12 can be folded along the groove 12. .
That is, for example, the sheet 1 has a short arc side portion 11 from the central portion of the sheet 1 toward the arc axis direction of the sheet 1, and the groove portion 12 is arranged from an arbitrary position of the sheet 1 toward the short arc side portion 11. It has been established.

Therefore, it is possible to fold the short arc side portion 11 in a concave shape.
Although this is clearly shown as the groove portion 12 in this figure, it is also possible to have a protruding row and to provide a large number of these.
These are all established as the groove 12.
For example, the groove portion 12 may be provided by pressurization, or the groove portion 12 may be configured by providing unevenness.
Therefore, when this part is pressurized, it will be folded along the groove part 12.

FIG. 2 is a view showing an example of a state in which a paper sheet 1 is wound around a forming core bar M by an arm-shaped flap, a roller, or the like to form a substantially cylindrical shape.
Thus, the sheet | seat 1 wound around the shaping | molding metal core M can be formed in the cylinder shape used as the foundation of the substantially bowl-shaped container which is a substantially bowl shape.
Therefore, the paper sheet 1 wound around the forming core bar M is not wound around the bottom direction of the forming core bar M, and extends linearly downward along the side wall of the forming core bar M. .
In this figure, it extends in a substantially skirt shape in the form of an inclined straight line that sags inward.

The length of the extension is such that at least when this portion is wound around the core metal M, it is not wound up to the bottom.
Furthermore, it presses from the bottom part direction of the shaping | molding core metal M with the female metal mold | die B in the state which wound the paper-made sheet | seat 1 around such a shaping | molding core metal M. FIG.
This female die B has a shape that matches from the center part to the bottom part shape of the cored metal M, and corresponds to a curved surface formed by the outer peripheral shape of the outer peripheral surface of the bottom part of the molded metal core M. is there.
Therefore, it has the bottom shape of the substantially bowl-shaped container which is the substantially bowl shape formed of the curved surface of the molded core bar M.

FIG. 3 is a diagram illustrating an example of a state in which the female die B is further in contact with and pressed against the forming core metal M in a state where the paper sheet 1 is wound around the forming core metal M.
When contacted in this way, the paper sheet 1 is wound around the molding die M by being crimped by the curved surface shape formed by the outer peripheral shape of the outer peripheral surface of the bottom of the female die B and the shape of the molding die M. It is molded in the state.
Accordingly, the container has a side-side curved shape that is a bottom shape of a substantially bowl-shaped container that is substantially bowl-shaped.
Of course, in addition to applying pressure required for pressure bonding, for example, rotation or the like may be used to improve adhesion.

FIG. 4 shows an example of a state in which the female mold B is further brought into contact with, for example, a pressed state in which a certain pressure is applied, and the paper sheet 1 molded into a bowl shape of the bottom cavity 21 is taken out. .
The paper sheet 1 formed as shown in the figure includes an upper opening having a wide opening at the upper opening formed by the long arc side portion 10 of the fan-shaped paper sheet 1, that is, an upper opening having a wide opening, and a short arc. The body of the container having a bowl-shaped curved inclined surface whose side body having an opening diameter which is a narrow edge constituted by the side 11, that is, a bottom cavity 21 which is a lower opening having a narrow opening, is substantially bowl-shaped. To be formed.
Accordingly, a rice bowl-shaped main body having a bottom cavity 21 made of the paper sheet 1 formed into a bowl shape can be molded.

FIG. 5 is a diagram illustrating an example of the paper sheet 1.
As shown in the figure, the sheet 1 is substantially fan-shaped and has a long arc side part 10 and a short arc side part 11, and the short arc side part 11 has a number of grooves 12.
A plurality of the groove portions 12 are arranged in the direction of the arc axis of the sheet 1 and toward the short arc side portion 11.
The shape of the groove portion 12 shows an example in which the long side and the short side are alternately and repeatedly formed as an example shown in the figure. However, the shape of the groove portion 12 is not limited to this and may be of a constant length or a different length. Alternatively, any type of arbitrary lengths may be provided in any order.

With this configuration, the side portion of the bottom can be narrowed down to a spherical shape, and unnecessary wrinkles can be reduced as much as possible when forming a spherical shape sequentially.
In addition, it has a margin part as an example in the side part of this sheet | seat.
Next, the groove portion 12 of this configuration may be provided with a row of dents in a streak shape, or may be formed by applying pressure from a certain direction to form irregularities and forming a groove portion based on this.
Or it may replace with unevenness | corrugation and may form the recessed part in both surfaces by applying a pressure from both sides.
Or what was shaved off in the shape of a dent and formed the groove | channel may be used.

In addition to these, a plurality of protruding rows may be provided.
The depth or height of the dents or protrusions of these groove parts 12 or the protruding protrusions of the protrusions may be arbitrary.
For example, even with a protruding row, the generation direction of wrinkles at the time of molding can be kept constant by this protruding row, and generation of wrinkles that are not neat and have a poor appearance can be prevented as much as possible.
Furthermore, it is possible to absorb wrinkles by the indentation on the opposite side of this protruding row, and at the time of molding, this protruding row is crushed to cause wrinkles due to linear pressure absorption traces along this protruding row. As a result, it is possible to prevent a large number of unsightly wrinkles from appearing in an extremely irregular and miscellaneous unnecessary direction.

At the time of forming into a bowl shape by pressurization with at least the forming core metal M and the female mold B, a spherical shape of the barrel portion in the bottom direction is reduced, and a beautiful spherical shape is obtained by eliminating the wrinkles as much as possible by this groove portion or protruding row. Any material that can be formed and can absorb wrinkles during molding may be used.
Moreover, the form of this substantially fan-shaped sheet | seat 1 is an example, and what is necessary is just to define the width | variety, height, or the extent of a curve as needed.
Of course, the sheet 1 may be preliminarily printed and the like may be further wound around the cored bar M to be molded.

In these cases, the paper sheet 1 may be a thin paper sheet or a thick paper sheet.
Furthermore, it is needless to say that a composite sheet using paper or a multilayer sheet may be used.
Therefore, it is composed of at least a paper sheet, but may be a paper sheet laminated with a resin sheet.

FIG. 6 shows an example in which the bottom sheet 3 is bonded or fused to the bottom of the paper sheet 1 formed into a bowl shape of the bottom cavity 21 shown in FIG. 4 to prevent liquid leakage at the bottom.
The bottom cavity is closed by using a bottom sheet 3 slightly larger than the bottom cavity 21 from the inside of the bowl-shaped main body of the bottom cavity 21 made of paper sheet 1 formed into a bowl shape.
For example, the bottom sheet is bonded via various adhesive members such as starch paste and hot melt, or a paper sheet is originally a multilayer sheet of paper and various resin sheets such as polyethylene and PET, or a composite sheet formed by coating. As a layer sheet, the bottom sheet 3 is also used as a multilayer sheet of the paper sheet 1 and various resin sheets such as polyethylene and PET, and is fused by various methods such as heat, ultrasonic waves or pressure It may be a thing.

In the present specification, the paper sheet 1 clearly indicates not only paper but also a sheet using a multilayer sheet with various resin sheets.
Accordingly, a laminate obtained by laminating a thermoplastic sheet or the like, a coating with a thermoplastic resin, or the like may be used and the thermal welding or ultrasonic welding may be used.
By doing in this way, the hollow part of the granite-shaped main body of the bottom cavity 21 can be closed, and it can be used as a container for liquid that can prevent liquid leakage.

Accordingly, a paper candy can be provided that can contain foods having various kinds of moisture, and can be used as a container for storing liquids in addition to a container for instant noodles.
6A is a diagram illustrating a state before the bottom seal 3 is mounted, and FIG. 6B is a diagram illustrating a state after the bottom seal 3 is mounted.

FIG. 7 is a view showing another example in which the bottom cavity 21 is closed from both sides by using the bottom sheet 3 that is slightly larger than the bottom cavity 21 from both the inside and outside of the bowl-shaped main body of the bottom cavity 21. .
By comprising in this way, mounting | wearing of the bottom part sheet | seat 3 can be performed more firmly.
Therefore, even if it comprises in this way, it can be used as a container which puts a liquid similarly, and can be used as a container which prevented the liquid leak.

Thus, in this form as well, it is possible to provide a paper bowl that can contain foods having various moisture contents, and can be used as a container for storing liquids in addition to a container for instant noodles.
7A is a diagram showing a state before the bottom seal 3 is attached, and FIG. 7B is a diagram showing a state after the bottom seal 3 is attached. .

FIG. 8 is a diagram showing another example of closing the bottom cavity 21 from the outside of the bowl-shaped main body of the bottom cavity 21 using the bottom sheet 3 that is slightly larger than the bottom cavity 21.
Even if comprised in this way, it can be used similarly as a container which puts in a liquid, and can be used as a container which prevented the liquid leak.
Accordingly, even in this form, a paper candy can be provided in which foods having various moisture contents can be similarly provided, and in addition to a container for instant noodles, for example, it can be used as a container for liquid.
8A is a diagram showing a state before the bottom seal 3 is attached, and FIG. 8B is a diagram showing a state after the bottom seal 3 is attached. .

FIG. 9 is a diagram showing an example of sealing the bottom cavity 21 by welding a resin sheet 4 to the inner surface of the bowl-shaped main body of the bottom cavity 21 as another example.
By comprising in this way, the whole inner surface of a bowl-shaped main body can be covered with the resin sheet 4, and a liquid leak etc. can be prevented effectively.
In this figure, the resin sheet 4 is disposed over the entire inner surface of the bowl-shaped main body by being sandwiched and pressurized by a heated cored metal M or a female mold B to attach the resin sheet 4 to the inner surface. is there.

In addition, the structure in this figure shows an example which has the collar part 4 in the opening part outer periphery circle | round | yen of a container, and it may be either what has this collar part 13 or does not have.
By this flange 13, the resin sheet 4 can be more reliably welded and, for example, the lid can be easily attached.

FIG. 10 is a view showing an example of the gourd itself molded out of the molding core M and the female die B. FIG.
With this configuration, the inner surface of the container can be formed as a flatter and smoother surface, and irregularities due to wrinkles and grooves at the time of forming the container can be effectively corrected to a smooth surface.

FIG. 11 shows a resin sheet 4 that further covers the entire inner surface of the bowl-shaped main body with respect to the main body in which the bottom cavity 21 is closed by the bottom sheet 3 from the inside of the bowl-shaped main body of the bottom cavity 21 shown in FIG. It is a figure which shows an example for covering, and in order to stick the resin sheet 4 to an inner surface, the resin sheet 4 is pinched | interposed and pressurized by the shaping | molding metal core M, the female metal mold | die B, etc. heated, etc. It is a figure which shows an example for arrange | positioning over the whole.
By comprising in this way, the whole inner surface of a container can be waterproofed, and it can prevent the leaking of the wrinkles by the unevenness | corrugation in a container in containers, such as instant noodles, with prevention of a liquid leak.

That is, the container inner surface can be formed as a flatter and smoother surface by configuring in this manner in the same manner as described above, and the unevenness caused by wrinkles and grooves at the time of container molding and the unevenness due to the placement of the bottom sheet are effective. Can be corrected to a smooth surface.
In addition to the configuration shown in the figure, the present invention may be used not only for FIG. 6 but also for each bowl-shaped body that covers the bottom cavity using the bottom sheet 3 shown in FIG. 7 and FIG. Similar effects can be obtained.

FIG. 12 shows another example of the present invention formed into a container in which a curved surface is formed in a cup shape in the cup-shaped bottom direction in which the ratio of height is high in the relationship between the height and the bottom, instead of the bowl-shaped container. FIG.
As shown in this figure, even in a high-length container, a substantially fan-shaped paper sheet 1 having a groove is similarly attached to a mandrel M, which is a cored bar M, by an arm or the like, and further the molded cored bar M and female Forming a bowl-shaped main body having a bottom cavity 21 with a mold die B, further sealing the bottom with the bottom sheet 3 and / or arranging the resin sheet 4 on the inner surface of the container to mold the container It is.
In addition, you may attach a hill to the bottom part of this container as needed.

Furthermore, the configurations shown in these figures are based on a so-called semi-circular bowl shape formed by a curved surface having a clean outer periphery, but are not limited thereto, and the outer peripheral surface has a polygonal shape of a triangle or more with a corner. It may be used for a heat insulating container having a pyramid shape that is shaped like a bowl.
In this case, for example, with respect to the molded core bar M, the shape thereof is a polygonal shape of a triangle or more with an angle on the peripheral surface, that is, an inverted pyramid shape. The paper sheet 1 has a shape that forms a substantially pyramid-shaped peripheral surface shape, and can be attached to the peripheral surface of the inverted pyramid-shaped container.

  In addition, it becomes a pyramid shape to the center part vicinity of a shaping | molding metal core, Of course, even if it has a corner | angular part in the surrounding surface not only in the structure formed as hemispherical shape in the bottom vicinity of a shaping | molding metal core. This shape is also included in the Ontake shape.

DESCRIPTION OF SYMBOLS 1 Substantially fan-shaped paper sheet 10 Long arc side part 11 Short arc side part 12 Groove part 13 Gutter part 21 Bottom part cavity 3 Bottom part sheet 4 Resin sheet M Molding metal core (mandrel)
B Female mold

Claims (9)

A bowl-shaped substantially bowl-shaped paper container using a substantially fan-shaped paper sheet 1 having a number of grooves 12 in the direction of the short arc side 11;
The substantially fan-shaped paper sheet 1 is wound around a substantially bowl-shaped molding die M having a substantially bowl shape formed in a curved surface at the bottom, and shaped into a bowl shape having a bottom cavity 21;
Furthermore, the bottom container 3 is arrange | positioned in the bottom part cavity 21, and it comprised by sealing the bottom part, The substantially paper-shaped paper container characterized by the above-mentioned. The substantially fan-shaped paper sheet 1 is wound around a bowl-shaped substantially bowl-shaped molding die M and then crimped by a female mold B to be molded into a bowl shape having a bottom cavity 21. The substantially bowl-shaped paper container according to claim 1. 3. A large number of groove portions 12 are formed from the central portion of the sheet 1 to the short arc side portion 11 in the arc axis direction of the substantially fan-shaped sheet 1 according to claim 1 or 2. The roughly shaped paper container described. 4. A substantially bowl-shaped paper container according to any one of claims 1 to 3, wherein the groove portion 12 comprises a protruding row. 5. The substantially paper-shaped paper container according to claim 1, wherein a bottom sheet 3 is disposed on an inner surface of a paper sheet 1 formed into a bowl shape having a bottom cavity 21. 5. The substantially bowl-shaped paper container according to claim 1, wherein a bottom sheet 3 is disposed on an outer surface of a paper sheet 1 formed in a bowl shape having a bottom cavity 21. 5. A substantially bowl-shaped paper according to any one of claims 1 to 4, wherein a bottom sheet 3 is disposed on each of an inner surface and an outer surface of a paper sheet 1 having a bottom cavity 21 and formed into a bowl shape. Made container. The substantially paper-shaped paper container according to any one of claims 1 to 7, wherein the resin sheet 4 is disposed on the entire inner surface of the paper sheet 1 formed into a bowl shape. A bowl-shaped, roughly bowl-shaped paper container is a paper container in which the ratio of the bottom to the height is changed to increase the height ratio, and the cup-shaped bottom direction is formed into a generally bowl-shaped curved surface. A substantially bowl-shaped paper container according to any one of claims 1 to 8.

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