TWI745636B - Layered body for forming container, forming container and packaging body, and manufacturing method of forming container and packaging body - Google Patents

Abstract

The present invention provides a container formed from a laminate having a metal foil layer and an outer resin film layer at a low price, which has a matte outer surface with a good appearance.

The laminate 10 for forming a container of the present invention includes a metal foil layer 11 and a single-layer or multiple-layer outer resin film layer 12 laminated on both sides of the metal foil layer as the outer side of the container. The outermost layer of the single-layer outer resin film layer or the multilayer outer resin film layer is composed of a resin composition mainly composed of a polyolefin resin and an olefin-based elastomer. The glossiness of the outer surface of the outer resin layer is 0.5 to 30%.

Description

Laminates for forming containers, forming containers and packaging bodies, and forming containers and Manufacturing method of packaging body

The present invention relates to a laminated body used as a material for sealing and packaging shaped containers such as food, a shaped container formed by forming the same laminated body, and a package formed by applying a lid to the same shaped container filled with contents The body, in more detail, relates to a laminated body, a molded container, and a packaging body for forming a container having a matte outer surface. In addition, the present invention relates to a method of manufacturing a molded container and a packaging body having a matte outer surface.

The laminated body formed into a cup-shaped shaped container is known as a container that can store packages such as water yokan, jelly, weaning food, nursing food, etc. for a long time, and the laminated body has a metal foil layer composed of aluminum foil and the like On both sides of the metal foil layer, there are single or multiple outer resin film layers on the outer side of the container (refer to Patent Document 1 and the like below).

In the packaging field, in order to provide a high-end appearance, there are cases where a container with a matte (glossy) outer surface is used.

For example, Patent Document 2 below discloses that a polypropylene resin film that has been imprinted is used to produce a binder for stationery having a matte outer surface.

In addition, the following Patent Document 3 discloses a hard coat film for molding in which a hard coat layer having a matte outer surface is formed on the outermost layer.

[Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Laid-Open No. 6-345123

[Patent Document 2] Japanese Patent Application Laid-Open No. 5-320376

[Patent Document 3] JP 2011-148301 A

However, if the laminate of the outer resin film layer composed of the embossed film of Patent Document 2 is molded into a cup shape, the embossed film may be stretched during molding, which may cause markings on the matte outer surface. Damage the appearance. In addition, if an embossed film is used, there is a problem of high cost.

In addition, when a laminate of an outer resin film layer composed of a film having a matte coating layer of Patent Document 3 is molded into a cup shape, there is a problem of cracks in the coating layer or peeling of the coating layer. In addition, the formation of a matte coating layer also has a problem of high cost.

The present invention was made in view of the above-mentioned problems, and its object is to provide a low-cost container formed of a laminate having a metal foil layer and an outer resin film layer, which has a good matte outer surface appearance.

In order to achieve the above-mentioned object, the present invention is constituted by the following aspects.

1) A laminate for forming a container, comprising a metal foil layer and a single layer or multiple outer resin film layers laminated on both sides of the metal foil layer as the outer side of the container for forming a container, Among them, the outermost layer of the single-layer outer resin film layer or the multi-layer outer resin film layer is composed of a resin composition mainly composed of polyolefin resin and olefin-based elastomer, and the outer surface of the outer resin film layer The gloss is 0.5~30%.

2) The laminate for forming a container as described in 1) above, wherein a printed layer is formed entirely or partly between the metal foil layer and the outer resin film layer; or by adding a coloring component to the outer resin film layer, the The established logo or decoration is displayed on the outer surface of the outer resin film layer.

3) A shaped container in which the laminated body for the shaped container of 1) or 2) is formed into a cup shape, and the opening periphery has a flange.

4) A packaging body, wherein a lid body is joined to the flange of the above-mentioned 3) shaped container filled with content to cover the opening of the shaped container.

5) A method of manufacturing a shaped container, which is a method of manufacturing a shaped container as described in 3) above, comprising: forming the laminated body of the above-mentioned 1) or 2) for the shaped container into a cup shape; and using a single layer The temperature of the outer resin film layer or the outermost resin film layer of the multi-layer outer resin film layer above the softening point of the resin is a step of heat-treating the molded container obtained in the foregoing step.

6) A method of manufacturing a packaging body, which is a method of manufacturing the packaging body as described in 4) above, comprising: joining a lid body to the flange of the shaped container as described in 3) above filled with content to cover the opening of the shaped container The step; and a single-layer outer resin film layer or a multi-layer outer resin film layer at a temperature above the softening point of the resin of the outermost layer to heat the package obtained by the foregoing steps.

7) The method of manufacturing a package as described in 6) above, wherein the step of applying heat treatment to the package is carried out by distillation and sterilization.

In the above 1) laminate for forming containers, the outermost layer of the single-layer outer resin film layer or the multi-layer outer resin film layer is composed of a resin composition mainly composed of polyolefin resin and olefin-based elastomer It is constructed that the glossiness of the outer surface of the outer resin film layer is 0.5 to 30%, so the outer surface of the molded container formed by molding the same laminate is matte. Next, in the case of the laminate of 1) above, unlike the laminate on the outer surface of the outer resin film layer made of an imprinted film, the outer surface is not stretched due to stretching during molding. In addition, the laminate on the outer surface of the outer resin film layer composed of a film having a matte coating layer does not cause cracks in the coating layer, and the coating layer does not peel off, so it is not costly.

Therefore, according to the laminate for a molded container of 1) above, a molded container having a matte outer surface with a good appearance can be obtained at a low price.

Here, "gloss" is measured in accordance with JIS Z8741-1997 (specular gloss-measuring method, method 3 (incident angle 60 degrees)).

According to the laminate for forming a container in 2) above, by forming a printing layer on the whole or part of the metal foil layer and the outer resin film layer, or adding a coloring component to the outer resin film layer, the outer resin film can be The outer surface of the film layer shows a predetermined logo or decoration, so that the molded container formed by the same laminate has a better appearance.

According to the above-mentioned 3) molded container, since it has a matte outer surface with a good appearance, it has a high-quality feeling.

According to the package of 4) above, a container with a matte outer surface with a good appearance provides a sense of luxury.

According to the method of manufacturing a molded container of 5) above, the following effects can be obtained.

That is, in the case of forming a cup shape of the laminated body for forming a container in the above 1) or 2), a part of the outer surface of the resulting formed container, specifically, for example, the bottom wall and the peripheral wall in the same outer surface The corners of the border are turbid, causing the metallic color on the surface of the metal foil layer or the markings of the printed layer to be concealed and cannot be seen, which may damage the appearance. The reason for this is considered to be that when the above-mentioned laminate is formed, the matrix of polyolefin resin (for example, block polypropylene resin) and the olefin in the outermost layer of the outer resin film layer of a single layer or the outer resin film layer of multiple layers Holes (voids) are formed at the interface of elastomers (for example, elastomers composed of ethylene-propylene copolymers), and because of the difference in refractive index between the resin part and the holes, a part of the outer surface of the shaped container, especially the outer surface of the shaped container In the middle, the corners where the degree of deformation is large due to forming, appear to be cloudy.

Therefore, as described above, when the molded container is heated at a temperature above the softening point of the resin in the outermost layer of the single-layer outer resin film layer or the multilayer outer resin film layer, the holes formed in the same layer Disappear, and then make the white turbidity disappear.

Therefore, according to the method for manufacturing a shaped container in the above 5), a shaped container having a matte outer surface with a good overall appearance can be obtained reliably.

Here, the "softening point" is the "Vicat softening point" measured in accordance with JIS-K7206:2016 (measurement condition A50).

According to the manufacturing method of the packaging body of 6) above, even if a part of the outer surface of the molded container is cloudy, a single outer resin film layer or a single outer resin film layer or The temperature above the softening point of the resin of the outermost layer of the multi-layered outer resin film layers can make the white turbidity disappear. Therefore, it is possible to reliably obtain a package having a molded container having a matte outer surface with a good overall appearance.

According to the manufacturing method of the packaging body of 7) above, because the heat treatment steps applied to the packaging body are carried out by distillation and sterilization treatment, it is possible to efficiently make the outer surface of the formed container without increasing the number of steps. The generated white turbidity disappeared.

(2): forming container

(21): bottom wall

(22): Zhou Bi

(23): Flange

(3): Cover body

(31): Tongue for opening

(4): Package body

(5): Retort sterilization treatment device

(10): Laminated body for forming containers

(11): Metal foil layer

(12): Outer resin film layer

(12a): The outer surface of the outer resin film layer

(13): Inner resin layer

(14): Adhesive layer

(15): Printing layer

(16): Adhesive layer

(C): contents

The first figure shows an enlarged cross-sectional view of the layer structure of the laminated body for forming the container according to the embodiment of the present invention.

The second figure shows a vertical cross-sectional view of the manufacturing method of the packaging body according to the embodiment of the present invention according to the sequence of steps.

The third figure is a perspective view of a package manufactured by the same method.

Hereinafter, embodiments of the present invention will be described with reference to the first to third figures.

The first figure shows the layer structure of the laminated body used for forming the container according to the embodiment of the present invention. The laminated body (10) of the figure includes: a metal foil layer (11); and an outer resin film layer (12) which is laminated on both surfaces of the metal foil layer (11) as the surface outside the container (2). In addition, the laminate (10) of this embodiment includes an inner resin layer (13), which is laminated on both surfaces of the metal foil layer (11) as the inner surface of the container (2).

As the metal foil constituting the metal foil layer (11), aluminum foil, iron foil, stainless steel foil, copper foil, etc. can be used, but aluminum foil is preferably used. In the case of aluminum foil, it can be either pure aluminum foil or aluminum alloy foil. It can be either soft or hard. For example, if it is an annealed soft material (O material) of the A8000 series (especially A8079H and A8021H) classified by JIS H4160 with an iron content of 0.3 to 1.5% by mass, It is suitable for use because of its excellent formability.

For one side or both sides of the metal foil layer (11), the bottom layer treatment such as chemical conversion treatment is carried out according to the demand. Specifically, for example, after coating any one of the following 1) to 3) aqueous solutions on the surface of a metal foil that has been degreasing treatment, it is dried to perform a chemical conversion treatment to form a film; 1) Contains phosphoric acid, chromic acid, An aqueous solution of at least one compound selected from the group consisting of metal salts of fluoride and non-metal salts of fluoride; 2) containing phosphoric acid, acrylic resin, and at least one resin selected from chitosan (chitosan) An aqueous solution of a mixture of derivative resins and phenolic resins, at least one compound selected from the group consisting of chromic acid and chromium (III) salt; 3) Contains phosphoric acid, acrylic resin, and at least one The resin is selected from the group consisting of chitosan derivative resins and phenolic resins, at least one compound is selected from the group consisting of chromic acid and chromium (III) salt, and at least one compound is selected from fluoride metal An aqueous solution of a mixture of salt and non-metallic salt of fluoride.

In the film formed on the surface of the metal foil layer (11) by the above-mentioned chemical conversion treatment, the chromium adhesion amount (per side) is preferably 0.1 mg/m ² to 50 mg/m ² , particularly preferably 2 mg/m ² ~20mg/m ² .

The thickness of the metal foil layer (11) is preferably 30-200 μm, more preferably 50-150 μm. With the above range, sufficient barrier properties and moldability can be obtained.

The outer resin film layer (12) is a single layer or multiple layers (shown as a single layer in the first figure).

The layer constituting the outer surface of the molded container (2), that is, the outermost layer of the single-layer outer resin film layer (12) or the multi-layer outer resin film layer (12), is composed of polyolefin resin and olefin elastomer Main ingredient The resin composition is composed. And the outer surface (12a) of the outer resin film layer (12) formed by the above-mentioned layer has a glossiness (gloss value) of 0.5-30%. Among the above resin compositions, polyolefin resins include block polypropylene resins (PP-B), homopolypropylene resins (PP-H), random polypropylene resins (PP-R), high-density polyethylene resins ( HDPE), linear low-density polyethylene resin (LLDPE), low-density polyethylene resin (LDPE), etc. In addition, examples of olefin-based elastomers include ethylene-propylene copolymers, ethylene-butene copolymers, and ethylene-propylene-1-butene copolymers. Regarding monomers other than ethylene, the content is 5-40% by mass, and the melting point is less than 90°C. In addition, the above-mentioned layer may contain a polyolefin component having a melting point of 135°C or higher. Furthermore, in order to adjust the glossiness of the outer surface of the molded container (2), organic and inorganic particulate fillers can also be added to the above-mentioned layer according to requirements.

When the outer resin film layer (12) is a multilayer, the layers other than the outermost layer can be made of polypropylene resin (PP), polyethylene resin (PE) and other polyolefin resins, nylon 6 (PA6), nylon 66 (PA66) ), MXD nylon and other polyamide resin (PA), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN ) And other polyester resins (PEs).

The thickness of the outer resin film layer (12) is preferably 5-100 μm, more preferably 15-80 μm.

In the outer resin film layer (12), in order to obtain a molded container (2) of an appropriate depth, a lubricant may be added. In addition, as an alternative to the lubricant, or in addition to the lubricant, a lubricant such as silicone oil or rapeseed oil may be applied to the surface of the layered body (10) during forming.

The lamination of the metal foil layer (11) and the outer resin film layer (12) can be carried out by a dry lamination method through the adhesive layer (14). For the adhesive layer (14), for example, a two-component curing type polyester-urethane resin adhesive or a polyether-urethane resin adhesive can be used.

On the inner surface of the outer resin film layer (12), a printing layer (15) is fully or partially formed by gravure printing or the like. With the printing layer (15), a predetermined mark or decoration can be displayed on the outer surface of the shaped container (2). Although the printing layer (15) is not particularly limited, in the sense of emphasizing the matte outer surface (12a) to have a sense of luxury, it is preferable to make the background color a dark color such as black.

In addition, a coloring component such as a pigment may be added to the outer resin film layer (12) instead of the printing layer (15).

Because the inner resin layer (13) constitutes the inner surface of the container (2) (including the upper surface of the flange (23)), it is made of, for example, polypropylene resin (PP) film or polyethylene resin (PE ) It is composed of general-purpose films such as films, or composite sheets laminated with these.

The thickness of the film or composite sheet constituting the inner resin layer (13) is preferably 100 to 500 μm, more preferably 200 to 400 μm.

The lamination of the film or composite sheet constituting the metal foil layer (11) and the inner resin layer (13) can be carried out by a dry lamination method through the adhesive layer (16). For the adhesive layer (16), for example, a two-component curing type polyester-urethane resin adhesive or a polyether-urethane resin adhesive can be used.

In addition, the inner resin layer (13) may be formed of a coating layer of epoxy resin or shellac resin, etc., instead of the above-mentioned film or composite sheet.

The second figure shows the manufacturing method of the packaging body in accordance with the steps. The packaging system uses the molded container and the lid formed by the above-mentioned laminate to seal and package the contents such as food.

First, the above-mentioned laminated body (10) is cut into a predetermined shape and size, and is formed into a cup shape. The forming of the laminated body (10) can be performed by cold rolling forming such as deep drawing forming or stretch forming. In this way, the shaped container (2) shown in the second (a) figure can be obtained.

The shaped container (2) is provided with: a bottom wall (21); a peripheral wall (22) which rises from the peripheral edge of the bottom wall (21); and a horizontal ring-shaped flange (23) which extends from the upper edge of the peripheral wall (22) Extend radially outward.

Here, a part of the outer surface of the molded container (2) after molding, especially the corner part of the boundary between the bottom wall (21) and the peripheral wall (22), may become cloudy, which may cause the color or printing on the surface of the metal foil layer (11) The markings on layer (15) are concealed and cannot be seen. This is considered to be due to the formation of the laminate (10), the polyolefin resin matrix and the olefin elastomer in the outermost layer of the single-layer outer resin film layer (12) or the multilayer outer resin film layer (12) Pores (voids) are generated at the interface of the resin, and because of the difference in refractive index between the resin part and the pores, the corner part of the outer surface of the molded container (2) that is deformed by molding appears to be cloudy.

Next, as shown in the second (b) figure, after filling the molded container (2) with the contents (C) such as food, the peripheral edge of the lower surface of the lid (3) is welded to the convex of the molded container (2) The upper surface of the rim (23).

The cover (3) may include, for example, a metal foil layer made of aluminum foil or the like; a heat-sealable resin film layer made of polypropylene resin (PP) film, polyethylene resin (PE) film, etc., and Laminated on the lower surface of the metal foil layer; and an outer resin film layer, which is formed of a polyester resin (PS) film or a polyamide resin (PA) film, etc., and is laminated on the upper surface of the metal foil layer. In addition, the opening tongue (31) in the lid (3) is integrally formed on a part of the outer peripheral edge thereof so as to protrude more outward than the flange (23) of the molded container (2) (refer to the third figure).

The means for thermally welding the lid (3) to the flange (23) of the molded container (2) is not particularly limited. For example, the upper surface of the flange (23) can be connected to the periphery of the lower surface of the lid (3). The partial overlap is performed by a hot plate heated to a predetermined temperature (for example, about 180° C.), and the overlapped portions are heated for a predetermined time while applying a predetermined pressure.

Next, the package (4) obtained in the above steps is introduced into the retort sterilization device (5), and the retort sterilization treatment is performed. This retort sterilization treatment step also serves as a heat treatment step to eliminate the white turbidity generated on a part of the outer surface of the molded container (2).

The heating temperature of the packaging body (4) in this step is above the softening point of the outermost resin film layer (12) of the single-layer outer resin film layer (12) of the laminate (10) or the outermost resin film layer (12) of the multilayer body (10) temperature. The heating temperature is more preferably a temperature higher than the softening point of the resin and lower than the melting point. By setting the heating temperature to a temperature higher than the softening point of the resin, the strain of the laminated body (10) caused by molding can be alleviated, and the holes can be easily filled. In addition, by making the heating temperature lower than the melting point of the resin, the shape of the molded container (2) can be maintained after heating. Specifically, it is about 80°C or higher, preferably about 100 to 180°C. The heating time is about 5 minutes to 3 hours.

In addition to the retort sterilization treatment, it is of course possible to perform the heat treatment step by, for example, an oven for heat treatment, or by a treatment such as immersion in warm water. In the case of heat treatment other than the retort sterilization treatment, the heat treatment may be performed only on the molded container (2) in the step before becoming the package (4).

The third figure shows the package (4) after the retort sterilization treatment. In the outer surface of the molded container (2), the white turbidity originally generated in the corner portion and the like disappears. This is believed to be because the molded container (2) was sufficiently heated by the retort sterilization treatment to alleviate the strain of the laminated body (10) caused by the molding and fill the holes.

In this way, the packaging body (4) is provided with a molded container (2) with a matte outer surface with a good overall appearance, which can bring a sense of luxury to people in need.

[Example]

Next, an embodiment of the present invention will be described. However, the present invention is not limited to the following examples.

<Example 1>

As the metal foil layer, an aluminum foil made of A8021H-O classified according to JIS H4160 is prepared, and a chemical conversion treatment solution composed of polyacrylic acid, trivalent chromium compound, water and alcohol is coated on both sides at 180°C After drying, chemical conversion treatment was performed so that the chromium adhesion amount was 10 mg/m ² , and the thickness was 120 μm. As the outer resin film layer, a single-layer non-stretched polypropylene resin film (CPP) with a thickness of 50μm was prepared, and a black ink (manufactured by DIC GRAPHICS, product name: PANACEA CVL-SP special ink 805) was used on a gravure printing machine. A plain printed layer is formed on the entire surface of a single side. In addition, as the inner resin layer, a composite sheet (layer ratio: 50 μm/250 μm) of a high-density polyethylene resin film (HDPE) and a polypropylene resin film (PP) with a thickness of 300 μm was prepared.

In the above-mentioned non-stretched polypropylene resin film (CPP), the resin composition uses a block polypropylene resin (PP-B) with 10% by mass of ethylene-butene-1 copolymer rubber added (softening point = 97 ℃).

Next, on one side of the aluminum foil, a two-component curing type polyester-urethane resin adhesive is used so that the printed layer is inside, and a non-stretched polypropylene resin film (CPP) is dry laminated. On the other side of the aluminum foil, with the polypropylene resin film side as the inner side, a two-component curing type polyester-urethane resin adhesive was used to dry-laminate the composite sheet. After curing for 5 days in an environment, a laminate for forming a container was produced.

Next, the blank sample obtained by cutting the laminate for forming the container into a predetermined shape is coated with a small amount of silicone on both sides, and then deep drawing is performed using a mold composed of a male mold and a female mold to form a blank sample. Round cup-shaped container with flange (bottom diameter 52mmφ, opening diameter 65mmφ, height 30mm, flange width 8mm).

On the other hand, on one side of aluminum foil with a thickness of 20μm formed by A1N30H-O classified by JIS H4160, a two-component curing type polyester-urethane resin adhesive is used for dry lamination. A 12μm thick polyethylene terephthalate resin (PET) film is used as the outer resin layer, and on the other side of the aluminum foil, a two-component curing type polyester-urethane resin adhesive, dry type A linear low-density polyethylene resin (LLDPE) film with a thickness of 30 μm was laminated as a heat-sealable resin layer, and cured in an environment of 40° C. for 5 days to produce a laminated body for lids.

The obtained laminated body is cut into the desired shape and size according to the flange to produce the lid body with the tongue for opening.

After putting 70ml of water in the container, on the upper surface of the flange of the container, overlap the cover with one side of the linear low-density polyethylene resin (LLDPE) film in contact with it, and then heat it to A 200°C ring-shaped heating plate (outer diameter 90 mmφ, inner diameter 74 mmφ) is pressed against the overlapping surfaces of the same with a pressure of 150 kgf for 3 seconds to perform heat sealing (heat welding). Thus, the package of Example 1 was obtained.

<Comparative Example 1>

A three-layer structure with a thickness of 30μm, which is composed of a random polypropylene resin (PP-R) film, a block polypropylene resin (PP-B) film, and a random polypropylene resin (PP-R) film, is laminated in sequence. The stretched polypropylene resin film (CPP) was used as the outer resin film layer of the laminate for forming the container, and the other package was produced in the same manner as in Example 1, and this was used as Comparative Example 1.

Regarding the packaging bodies of Example 1 and Comparative Example 1, when the glossiness of the outer surface of the container was measured with a gloss measuring instrument (Micro Trigloss S manufactured by BYK Gardner), it was 6% in Example 1, and it was in Comparative Example 1. 100%.

In addition, the appearance of the molded container of the packaging bodies of Example 1 and Comparative Example 1 was visually observed. In Example 1, in the outer surface of the shaped container, severe whitening was found in the corner portion of the boundary between the bottom wall and the peripheral wall. On the other hand, in Comparative Example 1, whitening was not found on the outer surface of the molded container.

Next, the package of Example 1 was heat-treated at a heating temperature of 100°C for 60 minutes in a constant temperature and humidity oven (PL-1J type manufactured by ESPEC Co., Ltd.), then it was taken out from the oven and visually observed When forming the outer surface of the container, although a little whitening remains in the corners, most of it disappears.

In addition, the package of Example 1 was heat-treated at a heating temperature of 120°C for 30 minutes with a retort sterilization treatment device (RCS-40RTGN manufactured by Nisaka Manufacturing Co., Ltd.), then it was taken out from the same device, and the shape was visually observed. On the outer surface of the container, the whitening of the corners completely disappeared.

[Industrial availability]

The present invention is used for sealing and packaging foods, etc., and it can be preferably used for shaped containers with a matte outer surface with good appearance.

(10): Laminated body for forming containers

(11): Metal foil layer

(12): Outer resin film layer

(12a): The outer surface of the outer resin film layer

(13): Inner resin layer

(14): Adhesive layer

(15): Printing layer

(16): Adhesive layer

Claims (7)

A laminate for forming a container, comprising a metal foil layer and a single or multiple outer resin film layer laminated on both sides of the metal foil layer as the outer side of the container, wherein the single outer resin film layer or the multilayer outer resin film layer The outermost layer of the film layer is composed of a resin composition mainly composed of polyolefin resin and olefin-based elastomer, and the gloss of the outer surface of the outer resin film layer is 0.5-30%. For example, the laminated body for forming a container in the first item of the scope of patent application, in which a printing layer is fully or partially formed between the metal foil layer and the outer resin film layer, or a coloring component is added to the outer resin film layer, and A predetermined logo or decoration is displayed on the outer surface of the outer resin film layer. A shaped container is formed by forming a laminated body for a shaped container as in the first item of the scope of patent application into a cup shape, and has a flange on the periphery of the opening. A packaging body which connects a lid body to a flange of a shaped container filled with content, such as the third item in the scope of the patent application, to cover the opening of the shaped container. A method of manufacturing a shaped container, which is a method of manufacturing a shaped container as in the scope of patent application 3, comprising: forming a laminated body for a shaped container as in the scope of patent application into a cup shape; and A step of heating the molded container obtained in the foregoing steps at a temperature above the softening point of the resin of the outer resin film layer of the layer or the outermost resin film layer of the multilayer. A method of manufacturing a packaging body, which is a method of manufacturing a packaging body as in item 4 of the scope of patent application, including: The step of joining the lid body to the flange of the shaped container filled with the content, such as the third in the scope of the patent application, to cover the opening of the shaped container; The temperature above the softening point of the resin of the outermost layer is a step of heating the package obtained by the foregoing steps. For example, the manufacturing method of the packaging body of item 6 of the scope of patent application, wherein the step of applying heat treatment to the packaging body is carried out by distillation and sterilization treatment.

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