Cylindrical container trunk

Abstract

To provide a cylindrical container trunk preferably used for a container capable of reducing environmental contamination as well as adverse effect on an ecosystem due to micro-plastics.SOLUTION: A cylindrical container trunk 2 comprises: a paper-based layer 10 mainly comprising a paper sheet 101; a barrier layer 201 provided on an inner peripheral side of the paper-based layer 10; and an inner face coating layer 202 provided on an inner peripheral side of the barrier layer 201. The cylindrical container trunk 2 comprises: a first aluminum foil 203; a first protection film 204 for coating an inner peripheral face of the first aluminum foil 203; a paper sheet 206 attached onto an outer peripheral face of the first aluminum foil 203; and a second aluminum foil 208 attached onto an inner peripheral face of the first protection film 204. The paper-based layer 10 is provided on an outer periphery of the paper sheet 206 attached onto to outer peripheral face of the first aluminum foil 203. The first aluminum foil 203 becomes the barrier layer 201, and the second aluminum foil 208 becomes the inner face coating layer 202.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a cylindrical container body formed of a paper-based material and used for containers that house, for example, cosmetics, stationery, food and drink products, etc.

[0002] In this specification and the claims, the term "aluminum" shall include aluminum alloys in addition to pure aluminum. Also, the term "container" shall include a housing member.

Background Art

[0003] As a container for housing cosmetics, for example, as described in Patent Document 1, a container obtained by stretch blow molding a resin composition containing polyethylene terephthalate and polypropylene is known.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In recent years, environmental pollution (marine pollution) by microplastics and adverse effects on ecosystems have become problems, and various efforts to reduce the environmental load have begun.

[0006] An object of the present invention is to provide a cylindrical container body that can suitably be used for a container capable of reducing environmental pollution by microplastics and adverse effects on ecosystems in view of the above circumstances

Means for Solving the Problems

[0007] The present invention comprises the following aspects in order to achieve the above object.

[0008] 1) A cylindrical container body comprising a paper-based layer, a barrier layer provided on the inner circumference of the paper-based layer, and an inner surface coating layer provided on the inner circumference of the barrier layer.

[0009] 2) The cylindrical container body according to 1) above, wherein the barrier layer is made of aluminum foil, an aluminum vapor-deposited film formed on a synthetic resin film, or a silica vapor-deposited film formed on a synthetic resin film.

[0010] 3) The cylindrical container body according to 1) or 2) above, comprising a first aluminum foil, a first protective film covering the inner surface of the first aluminum foil, paper adhered to the outer surface of the first aluminum foil, and a second aluminum foil adhered to the inner surface of the first protective film, wherein a paper-based layer is provided on the outer periphery of the paper adhered to the outer surface of the first aluminum foil, the first aluminum foil acts as a barrier layer, and the second aluminum foil acts as an inner coating layer.

[0011] 4) The cylindrical container body according to 3) above, wherein the inner circumferential surface of the second aluminum foil is covered with the second protective film, and the second aluminum foil and the second protective film form an inner coating layer.

[0012] 5) The cylindrical container body according to 4) above, wherein a first strip-shaped laminate in which paper, a first aluminum foil and a first protective film are laminated in order, a second strip-shaped laminate in which an adhesive layer, a second aluminum foil and a second protective film are laminated in order, and one or more strips of paper constituting a paper-based layer are formed by spirally winding the second strip-shaped laminate, the first strip-shaped laminate and the strips of paper in order from the inner circumference, such that the first protective film of the first strip-shaped laminate faces the inner circumference and the second protective film of the second strip-shaped laminate faces the inner circumference, the adhesive layer of the second strip-shaped laminate adheres the first protective film of the first strip-shaped laminate and the second aluminum foil of the second strip-shaped laminate, and the joints between the edges of the first strip-shaped laminate are covered by the second strip-shaped laminate.

[0013] 6) The cylindrical container body according to 1) or 2) above, comprising a polyethylene terephthalate film, an aluminum vapor-deposited film or a silica vapor-deposited film formed on the inner surface of the polyethylene terephthalate film, a reinforcing resin layer covering the inner surface of the aluminum vapor-deposited film or silica vapor-deposited film, and paper adhered to the outer surface of the polyethylene terephthalate film, wherein a paper-based layer is provided on the outer surface of the paper adhered to the outer surface of the polyethylene terephthalate film, the aluminum vapor-deposited film or silica vapor-deposited film acts as a barrier layer, and the reinforcing resin layer acts as an inner coating layer.

[0014] 7) The cylindrical container body according to 6) above, wherein the inner circumferential surface of the reinforced resin layer is covered with a heat-sealable resin layer, and the reinforced resin layer and the heat-sealable resin layer constitute the inner coating layer.

[0015] 8) The cylindrical container body according to 7), wherein a strip-shaped laminate is formed by sequentially laminating paper, polyethylene terephthalate film, aluminum vapor-deposited film or silica vapor-deposited film, a reinforcing resin layer and a heat-sealable resin layer, and one or more strips of paper constituting a paper-based layer, and the strip-shaped laminate and strips of paper are formed by spirally winding the strip-shaped laminate and strips of paper from the inner circumference side such that the heat-sealable resin layer of the strip-shaped laminate faces the inner circumference side, the strip-shaped laminate is wound spirally so that one of its side edges partially overlaps, an outward folded portion is provided on the side edge located on the inner circumference side of the overlapping portion of the strip-shaped laminate, and in the overlapping portion, the heat-sealable resin layer of the outward folded portion is joined to the heat-sealable resin layer on the inner surface of the side edge located on the outer circumference side of the overlapping portion.

[0016] 9) The cylindrical container body according to 1) or 2) above, comprising aluminum foil, a reinforcing resin layer covering the inner surface of the aluminum foil, and paper adhered to the outer surface of the aluminum foil, wherein a paper-based layer is provided on the outer side of the paper adhered to the outer surface of the aluminum foil, the aluminum foil acts as a barrier layer, and the reinforcing resin layer acts as an inner coating layer.

[0017] 10) The cylindrical container body according to 9) above, wherein the inner circumferential surface of the reinforced resin layer is covered with a heat-sealable resin layer, and the reinforced resin layer and the heat-sealable resin layer constitute the inner coating layer.

[0018] 11) A strip-shaped laminate in which paper, an aluminum foil, a reinforcing resin layer, and a heat-sealing resin layer are laminated in this order, and one or more strip-shaped papers constituting a paper main body layer are spirally wound in order from the inner peripheral side with the reinforcing resin layer of the strip-shaped laminate facing the inner peripheral side, and the strip-shaped laminate is spirally wound so that one side edge portions partially overlap each other, and an outwardly folded-back portion is provided at the side edge portion located on the inner peripheral side in the overlapping portion of the side edge portions of the strip-shaped laminate, and in the overlapping portion, the heat-sealing resin layer of the outwardly folded-back portion is joined to the heat-sealing resin layer on the inner peripheral surface of the side edge portion located on the outer peripheral side of the overlapping portion. The cylindrical container body according to 10) above.

[0019] 12) A container comprising the cylindrical container body according to any one of 1) to 11) above and a closing portion for closing the opening of the cylindrical container body.

Advantages of the Invention

[0020] According to the container of 1) to 11) above, the amount of plastic used can be reduced compared to a conventional container made entirely of plastic, so it is possible to reduce environmental pollution and adverse effects on the ecosystem.

Brief Description of the Drawings

[0021] [Figure 1] It is a longitudinal sectional view showing the overall configuration of a container using the cylindrical container body according to this invention. [Figure 2] It is a partially enlarged sectional view of the cylindrical container body of the container in FIG. 1. [Figure 3] It is a sectional view corresponding to FIG. 2 showing a first modification of the cylindrical container body of the container in FIG. 1. [Figure 4] It is a sectional view corresponding to FIG. 2 showing a second modification of the cylindrical container body of the container in FIG. 1. [Figure 5] It is a partially enlarged sectional view schematically showing a third modification of the cylindrical container body of the container in FIG. 1. [Figure 6]It is a partial enlarged cross-sectional view specifically showing the configuration of the laminate layer forming the cylindrical container body of FIG. 5. [Figure 7] It is a cross-sectional view corresponding to FIG. 6 showing a modified example of the laminate layer forming the cylindrical container body of FIG. 5. [Figure 8] It is a cross-sectional view corresponding to FIG. 6 showing another modified example of the laminate layer forming the cylindrical container body of FIG. 5.

Embodiments for Carrying Out the Invention

[0022] Hereinafter, embodiments of this invention will be described with reference to the drawings.

[0023] The same reference numerals are given to the same objects and the same parts throughout all the drawings.

[0024] FIG. 1 shows the overall configuration of a container using a cylindrical container body according to this invention, and FIG. 2 shows the configuration of the cylindrical container body of the container of FIG. 1.

[0025] In FIG. 1, a container 1 used for storing cosmetics includes a cylindrical container body 2 with openings at both upper and lower ends, an upper closing portion 3 that closes the upper opening of the cylindrical container body 2 and has a cosmetic outlet 4 at the central portion, and a lower closing portion 5 that closes the lower opening of the cylindrical container body 2. The cosmetic outlet 4 is provided in a protruding manner upward around a through hole 6 formed in the central portion of the upper closing portion 3, and a detachable cap (not shown) can be attached. The through hole 6 is closed by a membrane 7 adhered to the lower surface of the upper closing portion 3. The inner diameter of the cylindrical container body 2 is preferably 2 to 40 mm. Note that the shape of the container body is not limited to a cylindrical shape, and may be other shapes such as a polygonal cylindrical shape like a square cylindrical shape or an elliptical cylindrical shape.

[0026] As shown in Figure 2, the cylindrical container body 2 comprises a paper-based layer 10 mainly composed of paper, and a laminated material layer 20 provided on the inner circumference side of the paper-based layer 10 and having a barrier layer 201 that blocks the passage of gas and / or liquid, and an inner surface coating layer 202 provided on the inner circumference side of the barrier layer 201. The paper-based layer 10 consists of one or more layers of paper 101. More specifically, the laminated material layer 20 comprises a first aluminum foil 203, a first protective film 204 that covers the inner surface of the first aluminum foil 203, paper 206 bonded to the outer surface of the first aluminum foil 203 by an adhesive layer 205, a second aluminum foil 208 bonded to the inner surface of the first protective film 204 by an adhesive layer 207, and a second protective film 209 that covers the inner surface of the second aluminum foil 208. A paper-based layer 10 consisting of one or more pieces of paper 101 is provided on the outer periphery of the paper 206 adhered to the outer periphery of the first aluminum foil 203, the first aluminum foil 203 acts as a barrier layer 201, and the second aluminum foil 208 and the second protective film 209 act as an inner coating layer 202.

[0027] The cylindrical container body 2 consists of a first strip-shaped laminate 21 comprising a first aluminum foil 203, a first protective film 204 covering one side of the first aluminum foil 203, and paper 206 bonded to the other side of the first aluminum foil 203 by an adhesive layer 205; a second strip-shaped laminate 22 comprising a second aluminum foil 208, a second protective film 209 covering one side of the second aluminum foil 208, and an adhesive layer 207 covering the other side of the second aluminum foil 208; and a paper-based layer 10. The laminated material is formed by spirally winding the second strip-shaped laminated material 22, the first strip-shaped laminated material 21, and the strip-shaped paper 101 in order from the inner circumference, such that the first protective film 204 of the first strip-shaped laminated material 21 faces the inner circumference and the second protective film 209 of the second strip-shaped laminated material 22 faces the inner circumference. The adhesive layer 207 of the second strip-shaped laminated material 22 adheres the first protective film 204 of the first strip-shaped laminated material 21 to the second aluminum foil 208 of the second strip-shaped laminated material 22. The joints 211 at the edges of the first strip-shaped laminated material 21 are butted together, and these joints 211 at the edges of the first strip-shaped laminated material 21 are covered by the second strip-shaped laminated material 22. The first protective film 204 of the first strip-shaped laminated material 21 improves the slipperiness against the mandrel during manufacturing.

[0028] Furthermore, the second strip-shaped laminated material 22 may have its edges butted together, or its edges may overlap.

[0029] The thickness of the first aluminum foil 203 of the first strip-shaped laminate 21 is preferably 5 to 50 μm, more preferably 5 to 15 μm, for example 7 μm. For the first protective film 204 of the first strip-shaped laminate 21, for example, epoxy resin, polyethylene, polypropylene, or polyethylene terephthalate can be used to improve heat resistance, corrosion resistance, and slipperiness. For example, kraft paper, fine paper, coated paper, or water-resistant paper can be used as the paper 206 that is adhered to the outer surface of the first aluminum foil 203 of the first strip-shaped laminate 21.

[0030] The thickness of the second aluminum foil 208 of the second strip-shaped laminate 22 is 5 to 50 μm, preferably 5 to 15 μm, for example 11 μm. As the second protective film 209 of the second strip-shaped laminate 22, for example epoxy resin, polyethylene, polypropylene, or polyethylene terephthalate can be used. As the adhesive layer 205 of the second strip-shaped laminate 22, for example vinyl chloride-vinyl acetate adhesive, vinyl acetate adhesive, acrylic adhesive, or ethylene vinyl acetate adhesive can be used. Furthermore, the width of the second strip-shaped laminate 22 is preferably 3 mm or more.

[0031] The strip-shaped paper 202 constituting the paper-based layer 10 is appropriately selected from high-quality paper, coated paper, water-resistant paper, pure white paper, etc., depending on the intended use of the container 1. The thickness and number of strip-shaped paper 202 are also appropriately selected depending on the intended use of the container 1.

[0032] Figure 3 shows a first modified example of the cylindrical container body of the container shown in Figure 1.

[0033] The cylindrical container body 30 shown in Figure 3 is the same as the cylindrical container body 2 shown in Figure 2, but with the second protective film 209 omitted.

[0034] The other components are the same as those of the cylindrical container body 2 shown in Figure 2.

[0035] Figure 4 shows a second modified example of the cylindrical container body of the container shown in Figure 1.

[0036] The cylindrical container body 40 shown in Figure 4 is formed by spirally winding the second strip-shaped laminated material 22, which constitutes the cylindrical container body 2 shown in Figure 2, so that one of its side edges partially overlaps with the other. The second aluminum foil 208, located on the inner side of the overlapping portion 222 of the second strip-shaped laminated material 22, is bonded to the inner surface of the second protective film 209, located on the outer side of the overlapping portion 222, via an adhesive layer 207.

[0037] The other components are the same as those of the cylindrical container body 2 shown in Figure 2.

[0038] Figures 5 and 6 show a third modified example of the cylindrical container body of container 1 in Figure 1.

[0039] The cylindrical container body 50 shown in Figures 5 and 6 comprises a paper-based layer 10, which is mainly made of paper and is responsible for the strength of the cylindrical container body 50, and a laminated material layer 60 provided on the inner circumference side of the paper-based layer 10. The laminated material layer 60 comprises a polyethylene terephthalate film 61, an aluminum vapor-deposited film 62 formed on the inner circumference surface of the polyethylene terephthalate film 61, a reinforcing resin layer 63 covering the inner circumference surface of the aluminum vapor-deposited film 62, a heat-sealable resin layer 64 covering the inner circumference surface of the reinforcing resin layer 63, and paper 65 adhered to the outer circumference surface of the polyethylene terephthalate film 61. The paper-based layer 10 is provided on the outer circumference side of the paper 65 adhered to the outer circumference surface of the polyethylene terephthalate film 61, the aluminum vapor-deposited film 62 acts as a barrier layer 66 that blocks the passage of gas and / or liquid, and the reinforcing resin layer 63 and the heat-sealable resin layer 64 act as an inner surface coating layer 67.

[0040] The cylindrical container body 50 is formed by spirally winding a strip-shaped laminate 68, in which paper 65, polyethylene terephthalate film 61, aluminum vapor-deposited film 62, reinforced resin layer 63, and heat-sealable resin layer 64 are laminated in order, and one or more strips of paper constituting the paper main layer 10, with the strip-shaped laminate 68 and the strips of paper facing the inner circumference. The strip-shaped laminate 68 is spirally wound so that one of its side edges partially overlaps, and an outward folded portion 69 is provided on the side edge located on the inner circumference side of the overlapping portion 681 of the strip-shaped laminate 68. In the overlapping portion 681, the heat-sealable resin layer 64 of the outward folded portion 69 is joined to the heat-sealable resin layer 64 on the inner surface of the side edge located on the outer circumference side of the overlapping portion 681.

[0041] The combined thickness of the polyethylene terephthalate film 61 and the aluminum vapor-deposited film 62 of the strip-shaped laminate 68 is preferably 5 to 100 μm, more preferably 5 to 30 μm, for example 15 μm. The reinforcing resin layer 63 of the strip-shaped laminate 68 is preferably made of nylon with a thickness of 5 to 100 μm, more preferably 5 to 30 μm, for example 15 μm. The heat-sealable resin layer 64 of the strip-shaped laminate 68 is preferably made of linear low-density polyethylene with a thickness of 30 to 100 μm, more preferably 30 to 60 μm, for example 40 μm.

[0042] The strip-shaped paper constituting the paper-based layer 10 is appropriately selected from high-quality paper, coated paper, water-resistant paper, pure white paper, etc., depending on the intended use of the container. The thickness and number of strip-shaped paper strips are also appropriately selected depending on the intended use of the container.

[0043] Figure 7 shows a modified example of the laminated material layer forming the cylindrical container body shown in Figure 5.

[0044] The laminated material layer 70 shown in Figure 7 comprises an aluminum foil 71, a reinforcing resin layer 72 covering the inner surface of the aluminum foil 71, a heat-sealable resin layer 73 covering the inner surface of the reinforcing resin layer 72, and paper 74 bonded to the outer surface of the aluminum foil 71. A paper-based layer 10 is provided on the outer side of the paper 74 bonded to the outer surface of the aluminum foil 71, the aluminum foil 71 acts as a barrier layer 75 that blocks the passage of gas and / or liquid, and the reinforcing resin layer 72 and the heat-sealable resin layer 73 act as an inner coating layer 76.

[0045] Although not shown in the illustration, the cylindrical container body equipped with the laminated material layer 70 is formed by spirally winding the strip-shaped laminated material 77 and the strip-shaped paper, starting from the inner circumference, such that the heat-sealable resin layer 73 of the strip-shaped laminated material 77 faces the inner circumference, and then winding the strip-shaped laminated material 77 and the strip-shaped paper, which are in which paper 74, aluminum foil 71, a reinforced resin layer 72, and a heat-sealable resin layer 73 are laminated in order, and one or more strip-shaped papers that constitute the paper-based layer 10, so that the heat-sealable resin layer 73 of the strip-shaped laminated material 77 faces the inner circumference. The strip-shaped laminated material 77 is wound spirally so that one of its side edges partially overlaps, and, similar to the cylindrical container body shown in Figures 5 and 6, an outward folded portion is provided on the side edge located on the inner circumference side of the overlapping portion of the strip-shaped laminated material 70, and in the overlapping portion, the heat-sealable resin layer of the outward folded portion is joined to the heat-sealable resin layer on the inner surface of the side edge located on the outer circumference side of the overlapping portion.

[0046] The thickness of the aluminum foil 71 of the strip-shaped laminate 77 is preferably 5 to 50 μm, more preferably 5 to 15 μm, for example 7 μm. The reinforcing resin layer 72 of the strip-shaped laminate 77 is preferably 5 to 100 μm thick, more preferably 5 to 30 μm, for example 15 μm of nylon. The heat-sealable resin layer 73 of the strip-shaped laminate is preferably 30 to 100 μm thick, more preferably 30 to 60 μm, for example 40 μm of linear low-density polyethylene.

[0047] Figure 8 shows another modified example of the laminated material layer forming the cylindrical container body shown in Figure 5.

[0048] The laminated material layer 80 shown in Figure 8 comprises an aluminum foil 81, a heat-sealable resin layer 82 covering the inner surface of the aluminum foil 81, and glassine paper 83 adhered to the outer surface of the aluminum foil 81. A paper-based layer 10 is provided on the outer side of the glassine paper 83 adhered to the outer surface of the aluminum foil 81, the aluminum foil 81 acts as a barrier layer 84 that blocks the passage of gas and / or liquid, and the heat-sealable resin layer 82 acts as an inner surface coating layer 85.

[0049] Although not shown in the illustration, the cylindrical container body equipped with the laminated material layer 80 is formed by spirally winding the strip-shaped laminated material 80 and the strip-shaped paper, starting from the inner circumference, such that the heat-sealable resin layer 82 of the strip-shaped laminated material 80 faces the inner circumference, and using a strip-shaped laminated material 86 in which glassine paper 83, aluminum foil 81, and a heat-sealable resin layer 82 are laminated in order, and one or more strip-shaped papers constituting the paper-based layer 10. The strip-shaped laminated material 80 is spirally wound so that one of its side edges partially overlaps, and, similar to the cylindrical container body shown in Figures 5 and 6, an outward folded portion is provided on the side edge located on the inner circumference side of the overlapping portion of the strip-shaped laminated material 80, and in the overlapping portion, the heat-sealable resin layer 82 of the outward folded portion is joined to the heat-sealable resin layer 82 on the inner surface of the side edge located on the outer circumference side of the overlapping portion.

[0050] The thickness of the aluminum foil 81 in the strip-shaped laminate is preferably 5 to 50 μm, more preferably 5 to 15 μm, for example 9 μm. The heat-sealable resin layer 82 of the strip-shaped laminate is preferably 30 to 100 μm thick, more preferably 30 to 60 μm thick, and for example, made of high-density polyethylene with a thickness of 40 μm is used. [Industrial applicability]

[0051] The container according to this invention is suitably used as a cylindrical container body for storing cosmetics. [Explanation of Symbols]

[0052] 1: Container, 10: Paper-based layer, 101: Paper, 2: Cylindrical container body, 201: Barrier layer, 202: Inner coating layer, 203: First aluminum foil, 204: First protective film, 206: Paper, 207: Adhesive layer, 208: Second aluminum foil, 209: Second protective film, 21: First strip laminate, 22: Second strip laminate, 3: Upper closing part, 5: Lower closing part, 30: Cylindrical container body, 40: Cylindrical container body, 50 :Cylindrical container body, 60:Laminated material layer, 61:Polyethylene terephthalate film, 62:Aluminum vapor-deposited film, 63:Reinforced resin layer, 64:Heat-sealable resin layer, 65:Paper, 66:Barrier layer, 67:Inner coating layer, 68:Strip-shaped laminated material, 70:Laminated material layer, 71:Aluminum foil, 72:Reinforced resin layer, 73:Heat-sealable resin layer, 74:Paper, 75:Barrier layer, 76:Inner coating layer, 77:Strip-shaped laminated material

Claims

1. A cylindrical container body comprising a paper main layer mainly made of paper, a barrier layer provided on the inner circumferential side of the paper main layer, and an inner surface coating layer provided on the inner circumferential side of the barrier layer.

2. 2. The cylindrical container body according to claim 1, wherein the barrier layer comprises an aluminum foil, an aluminum vapor-deposited film formed on a synthetic resin film, or a silica vapor-deposited film formed on a synthetic resin film.

3. 3. A cylindrical container body according to claim 1 or 2, comprising a first aluminum foil, a first protective film covering the inner surface of the first aluminum foil, paper bonded to the outer surface of the first aluminum foil, and a second aluminum foil bonded to the inner surface of the first protective film, wherein a paper-based layer is provided on the outer periphery of the paper bonded to the outer surface of the first aluminum foil, the first aluminum foil serving as a barrier layer, and the second aluminum foil serving as an inner surface coating layer.

4. 4. The cylindrical container body according to claim 3, wherein the inner peripheral surface of the second aluminum foil is covered with a second protective film, and the second aluminum foil and the second protective film form an inner surface covering layer.

5. 5. The cylindrical container body according to claim 4, wherein the cylindrical container body is formed by spirally winding a first strip laminate having paper, a first aluminum foil, and a first protective film laminated in that order, a second strip laminate having an adhesive layer, a second aluminum foil, and a second protective film laminated in that order, and one or more strips of paper constituting the paper main layer, the second strip laminate, the first strip laminate, and the strips of paper in that order from the inner periphery, so that the first protective film of the first strip laminate faces the inner periphery and the second protective film of the second strip laminate faces the inner periphery, the adhesive layer of the second strip laminate is used to bond the first protective film of the first strip laminate and the second aluminum foil of the second strip laminate, and the seam between the edges of the first strip laminate is covered by the second strip laminate.

6. 3. A cylindrical container body according to claim 1 or 2, comprising a polyethylene terephthalate film, an aluminum vapor-deposited film or a silica vapor-deposited film formed on the inner surface of the polyethylene terephthalate film, a reinforced resin layer covering the inner surface of the aluminum vapor-deposited film or the silica vapor-deposited film, and paper adhered to the outer surface of the polyethylene terephthalate film, wherein a paper-based layer is provided on the outer side of the paper adhered to the outer surface of the polyethylene terephthalate film, the aluminum vapor-deposited film or the silica vapor-deposited film serves as a barrier layer, and the reinforced resin layer serves as an inner surface coating layer.

7. 7. The cylindrical container body according to claim 6, wherein the inner peripheral surface of the reinforced resin layer is covered with a heat-sealable resin layer, and the reinforced resin layer and the heat-sealable resin layer form an inner surface covering layer.

8. 8. The cylindrical container body of claim 7, wherein the body is formed by spirally winding a strip laminate material, which is made of paper, a polyethylene terephthalate film, an aluminum vapor deposition film or silica vapor deposition film, a reinforced resin layer, and a heat-sealed resin layer, in that order, and one or more strips of paper constituting the paper main layer, from the inner side so that the heat-sealed resin layer of the strip laminate material faces the inner side, the strip laminate material being spirally wound so that one side edge portion partially overlaps the other, an outer fold portion is provided on the side edge portion located on the inner side of the overlapping portion of the side edges of the strip laminate material, and in the overlapping portion, the heat-sealed resin layer of the outer fold portion is joined to the heat-sealed resin layer on the inner surface of the side edge portion located on the outer side of the overlapping portion.

9. 3. A cylindrical container body according to claim 1 or 2, comprising an aluminum foil, a reinforced resin layer covering the inner surface of the aluminum foil, and paper bonded to the outer surface of the aluminum foil, wherein a paper-based layer is provided on the outer side of the paper bonded to the outer surface of the aluminum foil, the aluminum foil serves as a barrier layer, and the reinforced resin layer serves as an inner surface coating layer.

10. 10. The cylindrical container body according to claim 9, wherein the inner peripheral surface of the reinforced resin layer is covered with a heat-sealable resin layer, and the reinforced resin layer and the heat-sealable resin layer form inner surface covering layers.

11. The cylindrical container body of claim 10 is formed by spirally winding a strip laminate material, in which paper, aluminum foil, a reinforced resin layer, and a heat-sealed resin layer are laminated in that order, and one or more strips of paper constituting the main paper layer, in order from the inner side so that the reinforced resin layer of the strip laminate material faces the inner side, the strip laminate material is spirally wound so that one side edge portion partially overlaps, an outer fold portion is provided on the side edge portion located on the inner side of the overlapping portion of the side edge portions of the strip laminate material, and in the overlapping portion, the heat-sealed resin layer of the outer fold portion is joined to the heat-sealed resin layer on the inner surface of the side edge portion located on the outer side of the overlapping portion.

12. A container comprising the cylindrical container body according to any one of claims 1 to 11 and a closing part for closing the opening of the cylindrical container body.

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