JP2016060539A - Cylindrical container and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical container and a manufacturing method of the same, which is manufactured at low cost, can make a stored flower visible, and has strength required for transportation and delivery.SOLUTION: A cylindrical container A comprises: a container body 10 formed in a cylindrical shape; an upper reinforcement cylinder 20 provided on an upper inside of the container body 10 except a middle part 40 with a central axis of the cylindrical container body 10 as a vertical direction; and a lower reinforcement cylinder 30 provided on a lower inside of the container body 10 except the middle part 40.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cylindrical container and a method for manufacturing the same, and more particularly to a cylindrical container suitable for storing, transporting and delivering cut flowers and a method for manufacturing the same.

  Conventionally, as shown in the following patent documents, cylindrical containers for storing cut flowers are known.

  The following Patent Document 1 discloses a sealed transparent case made of a thin synthetic resin film made of polyethylene terephthalate of 75 μm to 350 μm and made of a foldable transparent tube.

Patent Document 2 below is a container body made entirely of synthetic resin such as transparent polyethylene or polypropylene, and a band-shaped excisable portion is provided on a substantially middle circumference in the longitudinal direction of the container body, A floret container capable of dividing the container main body into an upper part and a lower part by connecting the lead-out band protruding from the side surface of the container main body to the excisable part and pulling the lead-out band is shown in the following Patent Document 3 A cardboard flower box is shown in which a cylindrical lid is fitted to a cylindrical main body.

  In Patent Document 4 below, a cylindrical case made of colored PVC having a thickness of 0.7 mm for storing cut flowers, and an inner lower portion of the cylindrical case, at least 2/3 of the whole from the bottom of the cylindrical case. Shown is a cut flower storage cylinder having a water-resistant paper roll that blinds the part.

  Patent Document 5 listed below is a packaging container comprising a cylindrical lower member made of a thick sheet and a cylindrical upper member made of a thick sheet, and the upper member is slidable outside the lower member. A flower packaging container is shown in which the bouquet housed inside is shielded so that it cannot be seen from the outside when the upper member is placed upward.

Utility Model Registration No.3054340 Japanese Utility Model Publication No. 6-53733 Utility Kaihei 6-23420 Japanese Utility Model Publication No. 3-19832. Japanese Patent No. 2881680

  However, none of the cylindrical containers described in Patent Documents 1 to 5 are provided with a reinforcing cylinder, and therefore, the cylinder itself constituting the cylindrical container needs to have strength enough to withstand use. Patent Document 4 shows a configuration in which a paper roll is provided only in the lower part of the cylindrical case, but this paper roll is intended to improve the design, and a thick paper roll is used to form a cylinder. Since there is no description which reinforces a cylindrical case, it is necessary to provide the cylindrical case itself with the strength which can be used. The cylindrical lower member and the cylindrical upper member constituting the packaging container shown in Patent Document 5 are thick per se and do not require the use of a reinforcing cylinder, and are stored in the bouquet. Is a structure that cannot be seen through.

  By the way, it is necessary to use a transparent synthetic resin sheet in order to allow the inside flower to be seen through, but a thick synthetic resin sheet has a problem that it is expensive to use as a disposable packaging material. is there.

  Therefore, the present inventor has developed a cylindrical container that is low in manufacturing cost, can see through the stored flowers, and has a necessary strength during transportation and delivery.

  A cylindrical container according to the present invention, a container body formed in a cylindrical shape, with the central axis of the cylindrical container body as the vertical direction, an upper reinforcing cylinder attached to the upper inner side excluding the middle part of the container body, It consists of the lower reinforcement cylinder attached to the lower inner side except the said middle part of a container main body, It is characterized by the above-mentioned. With this configuration, even if the strength of the container body is poor, there are reinforcing cylinders in the upper and lower parts of the container body. There is no risk of being crushed.

  Further, if the container body is formed in a cylindrical shape by winding a transparent synthetic resin sheet, and the upper reinforcing cylinder and the lower reinforcing cylinder are formed by a paper tube, the paper tube can be manufactured at low cost. This is desirable because it reduces costs. In addition, when configured in this way, in places where there are no upper and lower reinforcing cylinders that are in the middle of the container body, the inside can be seen through, so the stored items such as cut flowers can be seen, so the state of the stored items can be confirmed, and No mistakes in delivery, and joy to those who receive a cylindrical container containing cut flowers.

  Furthermore, if the thickness of the synthetic resin sheet constituting the container main body is 100 μm to 300 μm and the thickness of the paper tube constituting the upper reinforcing cylinder and the lower reinforcing cylinder is 1 mm to 2 mm, cost reduction and necessary It is further desirable to maintain a sufficient strength. If the thickness of the synthetic resin sheet is less than 100 μm, the shape retention of the container body will be poor, and the cylindrical container may be bent in the middle where the reinforcing cylinder is not attached even if the reinforcing cylinder is attached vertically. There is. When the thickness of the synthetic resin sheet exceeds 300 μm, the material cost increases. When the thickness of the paper tube is less than 1 mm, the reinforcing effect is lowered with respect to the synthetic resin sheet having a thickness of 100 μm to 300 μm. If the thickness of the paper tube exceeds 2 mm, the material cost becomes high and the internal volume of the cylindrical container is reduced, so that the storage efficiency is lowered.

  In addition to the above, if the paper tube formed by laminating a synthetic resin film on the inner surface is used, if the stored item contains moisture, for example, in cut flowers, the moisture does not penetrate into the paper tube. Moreover, softening of the upper and lower reinforcing cylinders due to moisture penetration can be prevented.

  Furthermore, if the container body is configured to be separable into an upper tube and a lower tube at an intermediate position in the vertical direction, the lower tube can be used as a simple vase when the upper tube is removed.

  The manufacturing method of the cylindrical container according to the present invention is to create a rectangular sheet from a transparent synthetic resin sheet, and to set one side of the rectangular sheet in the vertical direction, the upper printing area and the lower printing area except for the middle part in the vertical direction. The rectangular sheet is cut at an intermediate position in the vertical direction to form an upper half sheet and a lower half sheet, and the cut portions of the upper half sheet and the lower half sheet are brought into contact with each other. The upper half sheet and the lower half sheet are connected to each other by attaching the cut portion with a single-sided adhesive tape to return to a rectangular sheet form, and printing in the upper printing area and the lower printing at one side edge of the rectangular sheet. In each region, a double-sided adhesive tape is applied along one side edge, and each of the other side edge of the rectangular sheet serving as the glue margin from the upper end to the intermediate position and from the intermediate position to the lower end, respectively. In addition, A double-sided adhesive tape is applied along the other side edge, and an upper reinforcing cylinder made of a paper tube that fits in the upper printing area is attached in parallel to the upper double-sided adhesive tape attached to the one side edge. A rectangular sheet with a lower reinforcing cylinder made of a paper tube that fits in the lower printing area in parallel with the lower double-sided adhesive tape affixed to the one side end, with the upper reinforcing cylinder and the lower reinforcing cylinder inside. Is attached to the outer side of one side end of the synthetic resin sheet, and the upper reinforcing cylinder on the inner side of the upper side and the lower inner side of the lower side of the synthetic resin sheet are pasted. A lower reinforcing cylinder is attached and a container body is formed, and an upper lid is fitted into the upper end opening of the container body, and a bottom lid is fitted into the lower end opening.

  Moreover, as a manufacturing method of the cylindrical container according to the present invention, a rectangular sheet is formed from a transparent synthetic resin sheet, and one side of the rectangular sheet is set as an up and down direction, and is cut at an intermediate position in the up and down direction. The upper half sheet and the lower half sheet are formed by forming a sheet and a lower half sheet, abutting the cut portions of the upper half sheet and the lower half sheet, and pasting the cut portions with a single-sided adhesive tape. Are connected to each other to return to a rectangular sheet shape, and a double-sided adhesive tape is applied to each of the upper region and the lower region at one side end portion of the rectangular sheet along one side end portion to form a rectangular margin portion. A double-sided adhesive tape was applied along the other side edge from the upper end to the intermediate position and from the intermediate position to the lower end of the other side edge of the sheet, and applied to the one side edge. Upper side double-sided A lower reinforcing tube made of a paper tube that fits in the lower region is bonded in parallel to the lower double-sided adhesive tape that is bonded to the one side end in parallel with the upper reinforcing cylinder made of a paper tube that fits in the upper region. Glue the reinforcing cylinder, wind the rectangular sheet with the upper reinforcing cylinder and the lower reinforcing cylinder inside, and attach the double-sided adhesive tape at the glue margin at the other side edge of the synthetic resin sheet to one side edge of the synthetic resin sheet By attaching to the outside of the upper part, an upper reinforcing cylinder inside the upper part and a lower reinforcing cylinder inside the lower part are added and a container body is formed. An upper lid is fitted into the upper end opening of the container main body, and a bottom is placed in the lower end opening. You may make it manufacture by inserting a lid | cover.

  In any of the manufacturing methods as described above, the material cost is low and the assembly can be performed by light work, so that the assembly work cost can be reduced. Therefore, the overall production cost is low.

  Since the cylindrical container according to the present invention is configured as described above, the manufacturing cost is low, and the stored items such as cut flowers can be seen through, and the necessary strength at the time of transportation and delivery is provided. Is.

It is the perspective view which accommodated the cut flower of the cylindrical container which concerns on Example 1. FIG. 2 is a vertical cross-sectional view of the cylindrical container according to Example 1 taken along the line II-II. FIG. It is a top view of the inner surface side of a rectangular sheet | seat which shows the manufacturing method of the container main body in Example 1. FIG. It is a top view on the inner surface side which shows the manufacturing method of the container main body in Example 1, and shows the state printed on the inner surface side of the rectangular sheet. It is a top view by the side of the inner surface which shows the manufacturing method of the container main body in Example 1, and shows the state which cut | disconnected the rectangular sheet | seat and isolate | separated into the upper half sheet | seat and the lower half sheet | seat. It is the top view on the outer surface side which shows the manufacturing method of the container main body in Example 1, abutting an upper half sheet | seat and a lower half sheet | seat, and sticking and connecting the single-sided adhesive tape to the outer surface side. It is a top view by the side of the inner surface which shows the manufacturing method of the container main body in Example 1, and shows the state which stuck the double-sided adhesive sheet on the inner surface side of the rectangular sheet. FIG. 4 is a plan view on the inner surface side showing a method of manufacturing the container main body in Example 1 and showing a state in which an upper reinforcing cylinder and a lower reinforcing cylinder are attached to a double-sided adhesive sheet attached to the inner surface side of a rectangular sheet.

  Hereinafter, preferred embodiments of a cylindrical container according to the present invention will be described in detail with reference to the accompanying drawings.

  1 and 2, A indicates a cylindrical container, and the cylindrical container A includes a container body 10, an upper reinforcing cylinder 20, a lower reinforcing cylinder 30, an upper lid 50, and a bottom lid 60.

  As described in the manufacturing method described later, the container body 10 is made of a transparent synthetic resin sheet having a thickness of 300 μm, for example, a rectangular sheet 10a having a length of 500 mm and a width of 220 mm using a polypropylene sheet, and the length direction is set as the vertical direction. The rectangular sheet 10a is wound in the width direction and formed into a cylindrical shape. The upper printing area 10b and the lower printing area 10c of the rectangular sheet 10a are printed so that the inside cannot be seen through, and a midway portion 40 between the upper printing area 10b and the lower printing area 10c is transparent. Therefore, the inside of the container body 10 can be seen from the midway portion 40.

  Each of the upper reinforcing cylinder 20 and the lower reinforcing cylinder 30 has a thickness of 1.4 mm, and is constituted by a paper tube made of cardboard formed by laminating a synthetic resin film, for example, a polyethylene film, on the inner surface. The upper reinforcing cylinder 20 is attached to the upper inner side of the container body 10 with a double-sided adhesive tape so as to be accommodated in the upper printing area 10b. The lower reinforcing cylinder 30 is attached inside the upper portion of the container main body 10 with a double-sided adhesive tape so as to be accommodated in the upper printing region 10c. The bonding method of the upper reinforcing cylinder 20 and the lower reinforcing cylinder 30 to the container body 10 is not limited to the double-sided adhesive tape, and the upper reinforcing cylinder 20 and the lower reinforcing cylinder 30 are bonded to the container main body 10 by applying an adhesive. Also good.

  In addition, regarding the above synthetic resin sheet and paper tube, in order to reduce costs and maintain necessary strength, the thickness of the synthetic resin sheet constituting the rectangular sheet 10a is desirably in the range of 100 μm to 300 μm. The paper tubes constituting the upper reinforcing cylinder 20 and the lower reinforcing cylinder 30 are inherently inexpensive in manufacturing cost, but the thickness is desirably in the range of 1 mm to 2 mm. When the thickness of the synthetic resin sheet is less than 100 μm, the shape retaining property as the container body 10 is poor, and even if the reinforcing cylinders 20 and 30 are attached vertically, the middle part where the reinforcing cylinders 20 and 30 are not attached. At 40, the cylindrical container A may be bent. When the thickness of the synthetic resin sheet exceeds 300 μm, the material cost increases. When the thickness of the paper tube is less than 1 mm, the reinforcing effect is lowered with respect to the synthetic resin sheet having a thickness in the range of 100 μm to 300 μm. If the thickness of the paper tube exceeds 2 mm, the material cost increases, and the internal volume of the cylindrical container 10 decreases, resulting in a reduction in storage efficiency.

  In addition, the paper tubes constituting the upper and lower reinforcing cylinders 20 and 30 are formed by laminating a synthetic resin film on the inner surface thereof, so that even if the stored item in the cylindrical container A contains moisture like cut flowers, Since the moisture does not penetrate into the paper tube, it is possible to prevent weakening of the reinforcing cylinders 20 and 30 due to moisture penetration.

  Furthermore, the cylindrical container A is cut into an upper cylinder 11 and a lower cylinder 12 in an intermediate position so as to be separable, and a single-sided adhesive tape 13 is affixed to the cut portions 11a and 12a. By removing 13, the upper cylinder 11 can be removed from the cylindrical container A. When the upper cylinder 11 is removed and only the lower cylinder 12 is used, the upper flower portion of the cut flower B stored in the inside of the cylindrical container A is exposed, so that it can be used as a simple vase. As in this embodiment, it is desirable that the upper end of the lower reinforcing cylinder 30 protrudes from the upper end of the lower cylinder 12. With such a configuration, the lower part of the upper cylinder 11 fits into the protruding portion of the lower reinforcing cylinder 30. As a result, the connection between the upper cylinder 11 and the lower cylinder 12 is stabilized.

  The top lid 50 fitted into the upper end opening of the cylindrical container A and the bottom lid 60 fitted into the lower end opening allow opening and closing when the stored items are taken in and out of the cylindrical container A. is there. In the present embodiment, cut flowers are used as examples of stored items, and the vents 50a and 60a are provided in the upper lid 50 and the bottom lid 60, so that the freshness of cut flowers is not lowered. By using the vent hole 60a of the bottom lid 60 and connecting the vent hole 60a and the stored item through a connecting device such as a string, the stored item is fixed so that the stored item does not move in the cylindrical container A. You may make it do. Note that the vent holes 50a and 60a may not be provided depending on the stored items.

  When configured as described above, even if the strength of the container main body 10 is poor, the reinforcing cylinders 20 and 30 exist in the upper and lower portions of the container main body 10 respectively, so that the strength of the entire cylindrical container 10 is increased, There is no risk of being crushed during transport or delivery.

  Moreover, when comprised as mentioned above, since the inside can be seen through in the location where the upper and lower reinforcing cylinders 20 and 30 which are the middle part 40 of the container main body 10 do not exist, the stored item, for example, cut flowers can be visually observed. It is possible to confirm this, and there is no delivery error, and it is a pleasure to receive a cylindrical container containing cut flowers.

[Method 1 for producing cylindrical container]
Next, the manufacturing method of the cylindrical container A of the said Example 1 is demonstrated based on FIGS.

  The cylindrical container A shown in Example 1 produces the rectangular sheet 10a shown in FIG. 3 with a transparent synthetic resin sheet. Then, as shown in FIG. 4, one side of the rectangular sheet 10a (side edges in the figure) is set as the vertical direction, and printing is performed on the upper print area 10b and the lower print area 10c except for the middle part 40 in the vertical direction. To do. The lower printing area 10c is designed to protrude from an upper half sheet described later. Next, as shown in FIG. 5, the rectangular sheet 10 a is cut at intermediate positions 11 a and 12 a in the vertical direction to form the upper half sheet 11 and the lower half sheet 12. Then, as shown in FIG. 6, the upper half portion is obtained by abutting the cut portions 11 a, 12 a of the upper half sheet 11 and the lower half sheet 12 and sticking the cut portions 11 a, 12 a with the single-sided adhesive tape 13. The sheet 11 and the lower half sheet 12 are connected to return to the form of the rectangular sheet 10a.

  Therefore, as shown in FIG. 7, the upper double-sided adhesive tape 14 is applied along the one side end portion in the upper printing region 10b at one side end portion of the rectangular sheet 10a, and the lower printing region 10c. Then, the lower double-sided adhesive tape 15 is attached along one side end. Further, the upper half double-sided adhesive tape 17 is applied along the other side end portion from the upper end of the other side end portion of the rectangular sheet 10a to be the adhesive margin portion 16 to the intermediate position 11a, and the intermediate position A double-sided adhesive tape 18 in the lower half is applied along the other side end from 12a to the lower end.

  Then, as shown in FIG. 8, in parallel with the upper double-sided adhesive tape 14 affixed to the one side end portion, an upper reinforcing cylinder 20 made of a paper tube having a length that fits in the upper printing region 10 b is bonded, In parallel with the lower double-sided adhesive tape 15 affixed to the one side end, a lower reinforcing cylinder 30 made of a paper tube that fits in the lower printing area 10c is adhered so as to slightly protrude from the upper half sheet 11. .

  The rectangular sheet 10a is wound with the upper reinforcing cylinder 20 and the lower reinforcing cylinder 30 adhered to the rectangular sheet 10a inward as described above, and the double-sided adhesive tape 17 of the adhesive margin 16 on the other side end of the rectangular sheet 10a. , 18 are attached to the outside of one side end of the rectangular sheet 10a, thereby creating a container body 10 having an upper inner upper reinforcing cylinder and a lower inner lower reinforcing cylinder attached thereto. 1 is completed by fitting the top lid 50 into the bottom lid and fitting the bottom lid 60 into the lower end opening.

[Method 2 for producing cylindrical container]
Although not shown, the manufacturing method 2 is a method in which the rectangular sheet 10a in the manufacturing method 1 is not printed.

  That is, a rectangular sheet is formed of a transparent synthetic resin sheet, and one side of the rectangular sheet is set in the vertical direction, and is cut at an intermediate position in the vertical direction to form an upper half sheet and a lower half sheet. And, the upper half sheet and the lower half sheet are connected to each other by abutting the cut portions of the upper half sheet and the lower half sheet and affixing the cut portions with a single-sided adhesive tape to form a rectangular sheet. return.

  Next, a double-sided adhesive tape is applied to each of the upper region and the lower region at one side end of the rectangular sheet along one side end, and at the other side end of the rectangular sheet serving as the adhesive margin A double-sided adhesive tape is affixed along the other side end portion from the upper end to the intermediate position and from the intermediate position to the lower end.

  Therefore, in parallel with the upper double-sided adhesive tape affixed to the one side end, an upper reinforcing cylinder made of a paper tube that fits in the upper region is adhered, and the lower double-sided adhesive affixed to the one side end A lower reinforcing cylinder made of a paper tube that fits in the lower region is bonded in parallel with the tape. In this case, it is preferable in terms of design to use a paper tube having a decorative paper affixed to the surface thereof, but a white tube or one of other colors may be used.

  Then, the rectangular sheet is wound with the upper reinforcing cylinder and the lower reinforcing cylinder inside, and the double-sided adhesive tape of the adhesive margin at the other side end of the synthetic resin sheet is placed outside the one side end of the synthetic resin sheet. By sticking, the upper reinforcement cylinder inside the upper part and the lower reinforcement cylinder inside the lower part are added, and the container body is formed. The upper lid is fitted into the upper end opening of the container body, and the bottom lid is fitted into the lower end opening. By manufacturing.

  In any of the above manufacturing methods 1 and 2, the material cost is low, and since the assembly can be performed by light work, the assembly work cost can be reduced, and therefore the overall production cost is low.

  As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalent scope thereof.

  The cylindrical container according to the present invention can be used not only as a container for storing and transporting and delivering cut flowers, but also as a container for storing and transporting and delivering long objects.

A ………… Cylindrical container B ………… Cut flower 10 ………… Container body 10a …… Rectangle sheet (synthetic resin sheet)
10b: Upper printing area 10c: Lower printing area 11: Upper cylinder (upper half sheet)
11a …… Cutting point at intermediate position 12 ……… Lower cylinder (lower half sheet)
12a ...... Cutting point at intermediate position 13 ......... Single-sided adhesive tape 14 ......... Upper double-sided adhesive tape 15 ......... Lower-side double-sided adhesive tape 16 ......... Glue margin 17 ......... Double-sided upper half Adhesive tape 18 ......... Double-sided adhesive tape in the lower half 20 ......... Upper reinforcing cylinder (paper tube)
21 ......... Synthetic resin film layer 30 ......... Lower reinforcing cylinder (paper tube)
31 ......... Synthetic resin film layer 40 ......... Middle part 50 ......... Top cover 50a ... Top cover vent 60 ......... Bottom cover 60a ... Bottom cover vent

Claims (7)

A container body formed in a cylindrical shape;
An upper reinforcing cylinder attached to the inside of the upper part excluding the middle part of the container body, with the central axis of the tubular container body as the vertical direction,
A cylindrical container comprising: a lower reinforcing cylinder attached to an inner side of a lower part excluding the middle part of the container body. The container body is formed into a cylindrical shape by winding a transparent synthetic resin sheet,
The cylindrical container according to claim 1, wherein the upper reinforcing cylinder and the lower reinforcing cylinder are formed of paper tubes. The thickness of the synthetic resin sheet constituting the container body is 100 μm to 300 μm,
The thickness of the paper tube which comprises an upper reinforcement cylinder and a lower reinforcement cylinder is 1 mm-2 mm. The cylindrical container of Claim 2 characterized by the above-mentioned. The cylindrical container according to claim 2 or 3, wherein a paper tube formed by laminating a synthetic resin film on the inner surface is used. The cylindrical container according to any one of claims 1 to 4, wherein the container body is configured to be separable into an upper cylinder and a lower cylinder at an intermediate position in the vertical direction. A rectangular sheet is formed with a transparent synthetic resin sheet,
One side of the rectangular sheet is set in the vertical direction, and printing is performed in the upper print area and the lower print area except for the middle part in the vertical direction,
The rectangular sheet is cut at an intermediate position in the vertical direction to form an upper half sheet and a lower half sheet,
By connecting the upper half sheet and the lower half sheet by abutting the cut part of the upper half sheet and the lower half sheet and pasting the cut part with a single-sided adhesive tape, and returning to the form of the rectangular sheet,
Affixing a double-sided adhesive tape along one side edge in each of the upper printing area and the lower printing area at one side edge of the rectangular sheet,
Attaching a double-sided adhesive tape along the other side end from each of the upper end to the intermediate position and the intermediate position to the lower end of the other side end of the rectangular sheet serving as the adhesive margin,
In parallel with the upper double-sided adhesive tape affixed to the one side end, an upper reinforcing cylinder made of a paper tube that fits in the upper printing area is adhered, and the lower double-sided adhesive tape affixed to the one side end Parallel to the bottom, glue the lower reinforcing cylinder made of paper tube that fits in the lower printing area,
A rectangular sheet is wound with the upper reinforcing cylinder and the lower reinforcing cylinder inside, and the double-sided adhesive tape of the adhesive margin at the other side end of the synthetic resin sheet is applied to the outside of the one side end of the synthetic resin sheet By attaching the upper reinforcement cylinder inside the upper part and the lower reinforcement cylinder inside the lower part and forming the container body,
A method for producing a cylindrical container, comprising: fitting an upper lid into the upper end opening of the container body, and fitting a bottom lid into the lower end opening. A rectangular sheet is formed with a transparent synthetic resin sheet,
With one side of the rectangular sheet as the vertical direction, cut at an intermediate position in the vertical direction to form an upper half sheet and a lower half sheet,
By connecting the upper half sheet and the lower half sheet by abutting the cut part of the upper half sheet and the lower half sheet and pasting the cut part with a single-sided adhesive tape, and returning to the form of the rectangular sheet,
Affixing a double-sided adhesive tape along one side edge to each of the upper and lower areas at one side edge of the rectangular sheet,
Attaching a double-sided adhesive tape along the other side end from each of the upper end to the intermediate position and the intermediate position to the lower end of the other side end of the rectangular sheet serving as the adhesive margin,
In parallel with the upper double-sided adhesive tape affixed to the one side end, an upper reinforcing cylinder made of a paper tube that fits in the upper region is bonded, and the lower double-sided adhesive tape affixed to the one side end In parallel, glue the lower reinforcing cylinder made of paper tube that fits in the lower area,
A rectangular sheet is wound with the upper reinforcing cylinder and the lower reinforcing cylinder inside, and the double-sided adhesive tape of the adhesive margin at the other side end of the synthetic resin sheet is applied to the outside of the one side end of the synthetic resin sheet By attaching the upper reinforcement cylinder inside the upper part and the lower reinforcement cylinder inside the lower part and forming the container body,
A method for producing a cylindrical container, comprising: fitting an upper lid into the upper end opening of the container body, and fitting a bottom lid into the lower end opening.

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