JPH1016956A - Pull-top sealed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pull-top sealed container comprising a container main body and a lid, both being made of a cardboard as a base material, having high filling and barrier properties for liquid contents, and easy to be unsealed. SOLUTION: A pull-top sealed container is provided with: a container main body 1 having an opening at its top portion and being composed of a laminated film having a cardboard as a base material; a lid 3 which comprises a laminated film formed by laminating at least a heat-weldable resin film, a first adhesive layer, a vapor-deposited thin film having gas barrier properties, a sealing thin film, a porous organic resin film in which a number of blind holes are bored, a second adhesive layer, a cardboard, a third adhesive layer and an organic resin film for surface protection in order named from the inner face side of the lid and which is liquid-tightly mounted to the opening of the container main body 1; a U-shaped or a sideways U-shaped score 15 formed on the outer surface of the lid 3 so that the bottom face of the score reaches an intermediate portion of the cardboard of the laminated film or the surface of the second adhesive layer thereof; and a tab 16 fixed to the lid 3 with the aid of an adhesive layer 17 and formed for breaking the lid and unsealing the opening of the container along the score 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pull-top sealed container in which a container body and a lid are made of a laminated film based on paper, and more particularly to a pull-top sealed container having an improved lid.

[0002]

2. Description of the Related Art Recently, hermetically sealed containers made from paper-based laminated films have been spotlighted because they can be disposed of as "burnable refuse". Conventionally, as a sealed container of this type, a container main body made of a laminated film based on paper and a heat seal at the upper opening of the main body are integrally attached to serve as a filling and discharging of liquid contents. For example, a structure having a lid made of a laminated film based on paper having a gourd-shaped hole, and a band-shaped sealing piece heat-sealed to the lid including the hole is known.
The laminated film used for the container body and the lid is, for example, a PE film from the inner side, a deposited thin film obtained by spraying silicon oxide on a PET film, a PE film, a paper and a PE film laminated in this order. . The sealing piece has, for example, a three-layer structure in which a polyethylene (PE) film is adhered to a vapor-deposited thin film obtained by vapor-depositing Al of a polyethylene terephthalate (PET) film, and the PE film of the laminated film is brought into contact with the lid surface side. Heat sealed.

In a sealed container having such a structure, a liquid content, for example, juice is poured into a container body through a hole in the lid, and then the sealing piece is heat-sealed to the lid including the hole. Will be shipped as a container with jeans. In addition, the user peels off the sealing piece from the lid to open a hole in the lid, and pours juice into a cup or the like from here to eat.

However, in the above-mentioned conventional sealed container, the liquid content (eg, juice) is injected through a hole opened in the lid, so that the content is directly injected from the large upper opening of the filling port of the container body. It takes about 10 to 20 times as long as. For this reason, the productivity of the container containing the juice is significantly reduced. In addition, since bubbles are taken into the container body at the time of injecting the juice, and the lid is already attached to the opening at the time of the injection, sufficient deaeration becomes difficult. If air remains in the juice container, the content juice is oxidized during storage and the like, and the taste is reduced. Furthermore, since the sealing after the injection of the juice is performed by heat-sealing the strip-shaped sealing piece of the three-layer structure to the lid, the gas barrier property is insufficient, and the permeation of oxygen and the contents are performed. This leads to a decrease in taste due to oxidation of the juice.

On the other hand, as another sealed container, a container body made of a paper-based laminated film having the same layer structure as described above, and a liquid content is injected (filled) into the main body.
After that, the opening is heat-sealed integrally and the top surface is
2. Description of the Related Art A structure having a lid made of a laminated film of an E film and paper and having a peripheral frame made of plastic, and a pull-top mechanism attached to the lid is known. The pull-top mechanism has a triangular shape, a plastic tear piece integrally attached to the frame such that a corner thereof is located at the center of the frame, and two sides intersecting at an angle of the tear piece. A plastic guide unit integrally attached to the frame so as to leave a slight gap with respect to the frame, the frame, the tear piece and after adhering a laminated film on the upper surface of the guide part, the triangular tear piece And a ring-shaped tab joined to the corner.

In a sealed container having such a structure, after a liquid content, for example, juice is poured into the container main body, the lid having the pull-top mechanism is heat-sealed and sealed at an upper opening of the container main body. By doing so, it is shipped as a container with juice. In addition, the user lifts the tab and pulls the tab toward the outer peripheral side (the base side of the tearing piece) so that the top surface made of the laminated film together with the tearing piece is formed at a gap between the tearing piece and the guide portion. The lid is broken and the lid is opened in a triangular shape, and the juice is eaten by pouring the juice into a cup or the like.

In the hermetically sealed container, the liquid content can be injected (filled) at the stage of the container body, so that the filling time can be shortened and the productivity can be increased. However, in assembling the lid, it is necessary to attach the top surface made of the laminated film so that the corners of the triangular tear pieces, that is, the mounting portions of the tabs, are exposed, so that the gas barrier property is reduced. As a result, they are not suitable for storing liquid contents for the purpose of long-term storage, and are used in sealed containers such as yogurt in which the period from purchase to eating is relatively short.

[0008]

According to the present invention, the container body and the lid are formed of a laminated film based on paper, and the filling efficiency of the liquid contents, the barrier property against the liquid contents are high, and the opening is easy. An object of the present invention is to provide a pull-top sealed container.

[0009]

SUMMARY OF THE INVENTION A pull-top sealed container according to the present invention has an opening at an upper portion and is made of a container body made of a laminated film based on paper, and a thermo-fusible resin made of at least a heat-fusible resin from the inner surface side. Adhesive film, first adhesive layer, vapor-deposited thin film having gas barrier properties, sealing thin film, porous organic resin film having a large number of non-perforated holes, second
An adhesive layer, paper, a third adhesive layer and a surface protection organic resin film, which are laminated in this order;
A lid liquid-tightly attached to the opening of the container body,
A U-shaped or U-shaped score formed on the outer surface of the lid such that the bottom surface reaches the middle of the paper of the laminated film or the surface of the second adhesive layer, and an adhesive layer is provided on the lid. Fixed, pressing the inner lid portion surrounded by the score, breaking near the bent portion of the score, and further lifting the inner lid portion surrounded by the score, A plastic tab for enlarging and opening the broken portion.

The plastic tab is fixed to the lid via an adhesive layer, and has a structure in which at least one outer peripheral edge matches the bent portion of the score and the other end has a finger holding portion. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a pull-top type sealed container according to the present invention will be described in detail. The pull-top sealed container includes a container body made of a laminated film based on paper having an open top, a lid body made of the laminated film, and a lid attached to an opening of the container body in a liquid-tight manner, A U-shaped or U-shaped score formed on the outer surface of
A plastic tab fixed to the lid via an adhesive layer.

The laminated film used for the container body may be, for example, a heat-fusible resin film from the inner surface side, a vapor-deposited thin film obtained by vapor-depositing aluminum on a rigid organic resin film or spraying silicon oxide, An adhesive resin film, paper and a heat-fusible resin film are laminated in this order.

[0013] The laminated film used for the lid includes at least a heat-fusible resin film, a first adhesive layer, a vapor-deposited thin film having a gas barrier property, a sealing thin film, and a large number of non-through holes. Are laminated in this order, a porous organic resin film having a hole, a second adhesive layer, paper, a third adhesive layer, and an organic resin film for surface protection.

In the score formed on the lid, the bottom surface reaches the middle of the paper of the laminated film or the surface of the second adhesive layer. That is, at the bottom of the score, from the inner surface side, a heat-fusible resin film, a first adhesive layer, a vapor-deposited thin film having gas barrier properties, a sealing thin film, and a porous film having a large number of non-through holes. Since at least the high quality organic resin film remains, the vapor-deposited thin film sufficiently secures gas barrier properties at the score.

The tab is, for example, fixed to the lid via an adhesive layer, and at least one outer peripheral edge matches the bent portion of the score, and the other end has a finger holding portion (for example, a ring portion).
Having a shape having In such a tab, by grasping and lifting the finger holding portion, the tab portion on the opposite side to the finger holding portion presses the lid portion with the adhesive layer as a fulcrum, thereby bending the score. By breaking the vicinity and further pulling the tab, the broken portion of the score is enlarged and opened.

Next, each member of the sealed container (such as a constituent material of the laminated film) will be described in detail. Examples of the heat-fusible resin used for the container body and the lid include polyethylene, such as low-density polyethylene and linear low-density polyethylene, ethyl vinyl acetate copolymer (EVA), and unstretched polypropylene. . A film made of such a heat-fusible resin usually has a thickness of 1
Those having a size of 0 to 50 μm are used.

The porous organic resin film constituting the lid is manufactured by, for example, an apparatus for manufacturing a porous film disclosed in Japanese Patent Publication No. 6-61859. The manufacturing apparatus includes a supply unit for supplying a long film; a first rotatable roll having a large number of particles having a Mohs hardness of 5 or more (for example, diamond particles) having sharp corners adhered to a surface thereof; And a second roll rotatable in the opposite direction with respect to the first and second rolls are arranged to face each other so that the long film passes between them, A punching unit in which one of the rolls is fixed and the other is movably arranged in the direction opposite to the one of the rolls; provided in the vicinity of both ends of the movable roll of the unit; Pressure adjusting means for adjusting the pressing force on the film.

The porous organic resin film has 500 non-through holes with an average opening diameter of 0.5 to 100 μm per cm ^2.
It is preferable to have a form in which holes are formed in the organic resin film at the above density. A porous organic resin film having through holes with such an average opening diameter and density has a tear strength sufficiently lower than that of a non-porous organic resin film, and a higher tear strength than that of a non-porous organic resin film. (Breakability)
Is shown.

Examples of the organic resin film used for the porous organic resin film include a polyester film such as a polyethylene terephthalate film, nylon, and an oriented polypropylene film.
This organic resin film preferably has a thickness of 5 to 30 μm. The thickness of the organic resin film is 5 μm
If it is less than the above, there is a possibility that the transportation for depositing aluminum or silicon oxide may be hindered. More preferably, the thickness of the organic resin film is 6 to 12 μm.

The reason why the average opening diameter of the non-through holes of the porous organic resin film is specified is as follows. When the average opening diameter is less than 0.5 μm, the tearability of the porous organic resin film becomes insufficient,
It becomes difficult to easily open the lid with the tab, which makes this a part of the layer structure. On the other hand, when the average opening diameter is 100
If it exceeds μm, in the coating of the sealing thin film on the surface opposite to the opening side of the porous organic resin film, the sealing is incomplete, and it becomes difficult to form a vapor-deposited thin film. In some cases, it may be difficult to maintain the gas barrier properties of the deposited thin film. More preferably, the average opening diameter of the non-through holes is 2 to 50 μm.

The reason why the density of the non-through holes in the porous organic resin film is specified is as follows. When the density is less than 500 pieces / cm ² , it becomes difficult to form a porous organic resin film having high tearability into a layer constituting material of the lid. The upper limit of the density is not particularly limited. However, the non-through holes having a density of 25,000 / cm ² can be formed in one treatment by the above-described porous film manufacturing apparatus. More preferably, the density of the non-through holes is 1,000 holes / cm ^{2 to} 5000 holes / cm ^2.
cm ² .

In the laminated film constituting the lid,
The laminate of the porous organic resin film, the sealing thin film, and the vapor-deposited thin film having a gas barrier property is formed, for example, by coating a sealing thin film on the surface of the porous organic resin film on the side opposite to the opening side of the non-through hole, and It is produced by depositing aluminum or silicon oxide on the surface of the stop thin film. For example, (1) 100 parts by weight of an ink obtained by adding about 25% by weight of an acrylic resin to a mixed solvent of 4: 4: 2 of toluene-ethyl acetate-isopropyl alcohol, and 5 parts by weight of a curing agent (1) Ink 1 in which a polyester resin is added to a mixed solvent of toluene-methyl ethyl ketone at a ratio of 1: 1 with a solid content of about 20% by weight.
A primer having a composition in which 5 parts by weight of a curing agent is blended with 00 parts by weight, and (3) an ink in which a butyral-based resin is added to a mixed solvent of toluene-ethyl acetate-isopropyl alcohol in a ratio of 4: 4: 2 in an amount of about 10% by weight as a solid content. Prepare a primer having a composition of 100 parts by weight and 5 parts by weight of a curing agent, apply the primer to the surface of the porous organic resin film on the side opposite to the opening side of the non-through hole, and form the substrate by drying. Is done. By forming such a sealing thin film on the surface opposite to the opening side of the non-through hole of the porous organic resin film, the sealing thin film acts as a barrier during the deposition of aluminum or silicon oxide, and Since the remaining thin film at the bottom of the non-through hole is prevented from being melted, a thin film of Al or the like can be satisfactorily deposited, and the vacuum chamber of the deposition apparatus can be prevented from being contaminated.

As the adhesive constituting the container body and the lid, a general adhesive applied to foods can be used. The thickness of this adhesive layer (particularly, the first and second adhesive layers constituting the lid) is preferably 5 to 20 μm from the viewpoint of tearability and protection of the contents.

As an adhesive for fixing the tab to the lid, for example, a polyimide adhesive such as nylon can be used. The tab is made of, for example, polypropylene, nylon or the like.

The above-described pull-top sealed container according to the present invention comprises a container body made of a laminated film based on paper having an open top, and a laminated film liquid-tightly attached to the opening of the container body. A lid, a U-shaped or U-shaped score formed on the outer surface of the lid, and a plastic tab fixed to the lid via an adhesive layer, wherein the lid is A heat-fusible resin film, a first adhesive layer, a vapor-deposited thin film having gas barrier properties, a sealing thin film, a porous organic resin film having a large number of non-through holes, (2) an adhesive layer, a paper, a third adhesive layer, and a surface protection organic resin film are laminated in this order, and the bottom surface of the score is in the middle of the paper of the laminated film or the second 2 bonding It has a configuration which is located on the layer surface.

In such a pull-top sealed container, the filling (filling) of a liquid content, for example, juice, is performed into the container body, that is, the container body without the lid attached, so that the filling time is shortened. Can be achieved.

After the juice is injected, the lid having the score and the tab attached to the upper opening of the container body is heat-sealed, so that the container can be attached in a liquid-tight manner. In attaching such a lid, a heat-fusible resin film, a first adhesive layer,
Since at least a vapor-deposited thin film having a gas barrier property, a sealing thin film, and a porous organic resin film in which a large number of non-through holes are perforated remain, it is possible to sufficiently secure gas barrier properties at the score. it can.

Further, by gripping the finger holding portion of the tab in the pull-top type sealed container and vertically raising the tab, the tab portion on the side opposite to the finger holding portion with the adhesive layer as a fulcrum is the lid portion. Press. When the tab end is pressed, the pressing force concentrates on the weak score cut into the lid. The layer structure of the lid at the bottom of the score has a heat-fusible resin film, a first adhesive layer, a vapor-deposited thin film having a gas barrier property, a sealing thin film, and a large number of non-through holes. A porous organic resin film (or a part of paper is added) provided therein, and the porous organic resin film is provided with a large number of fine non-through holes acting as tearing starting points (rupture starting points). The bottom of the score is easily broken along the score,
The inner lid portion surrounded by the score is depressed on the inner surface side. In this state, when the tab is pulled upward, the tab is adhered by the adhesive layer,
Since a pulling force is applied to the inner lid portion surrounded by the score, the broken portion of the score is enlarged and U
It can be easily opened in a U-shape or a U-shape. After opening, the broken piece of the lid and the tab remain on the lid as it is.

Therefore, the pull-top sealed container according to the present invention can be disposed of as "burnable refuse" after use since the container body and the lid are made of a laminated film based on paper. Injecting (filling) liquid contents
Can be performed at the stage of the container body with a large inlet,
Since the lid is attached after the injection, the injection time of the liquid content can be shortened, and the deterioration of the quality of the liquid content due to oxidation or the like during long-term storage can be prevented by preventing air from entering the container. . Furthermore, since the gas barrier property at the location of the score of the lid can be ensured by the vapor deposition thin film which is the layer constituent material at the bottom thereof, it is possible to prevent a deterioration in quality such as taste of the liquid content during long-term storage. it can. Further, by using a porous organic resin film serving as a fracture starting point as one of the laminated films constituting the lid, the tab attached to the lid is vertically raised, and the lid is pulled along the score by pulling. Can be broken and easily opened.

[0030]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a top view of a pull-top sealed container for orange juice of this embodiment, and FIG. 2 is a view of the sealed container of FIG.
FIG. 3 is a cross-sectional view taken along line II-II, and FIG. 3 is an enlarged cross-sectional view near the score in the lid of FIG.

The container body 1 based on paper has an upper opening 2 which is widened outward. The main body 1 is composed of a laminated film in which a PE film, a deposited thin film obtained by spraying silicon oxide onto a PET film, a PE film, a paper, and a PE film are laminated in this order from the inner surface side. The lid 3 based on paper is folded into the upper opening 2 of the main body 1 after injecting (filling) the orange juice into the container main body 1, and a PE film as an inner surface film thereof and the inner and outer surfaces of the main body 1. Is mounted in a liquid-tight manner by heat sealing with a PE film. As shown in FIG. 3, the lid 3 has, for example, a PE film 4 having a thickness of 30 μm and a thickness 1 made of a two-component polyester polyurethane system from the inner side.
0 μm first adhesive layer 5, 0.08 μm thick vapor-deposited aluminum thin film 6, 2 μm thick sealing thin film 7, porous OPP film 8 with many non-through holes, two-component polyester polyurethane 10 μm thick second system
An adhesive layer 9, a paper 10 having a thickness of 400 μm, a third adhesive layer 11 having a thickness of 10 μm made of a two-component polyester polyurethane system and an OPP film 12 for surface protection are laminated in this order. The porous OPP film 8 is, for example, an OPP film 13 having a thickness of 20 μm.
The non-through hole 14 having an opening diameter of 70 to 80 μm is 50
It has a structure in which a number of holes are uniformly formed at a density of 00 / cm ² . Among the laminated films, a laminate of a porous OPP film 8, a sealing thin film 7, and a vapor-deposited Al thin film having a gas barrier property is obtained by solidifying an acrylic resin in a 4: 4: 2 mixed solvent of, for example, toluene-ethyl acetate-isopropyl alcohol. A primer having a composition in which 5 parts by weight of a curing agent is blended with 100 parts by weight of an ink added at about 25% by weight, and this is placed on the surface of the porous OPP film 8 on the side opposite to the opening side of the non-through hole 14. And dried, and then aluminum is vapor-deposited on the surface of the sealing thin film.

The substantially U-shaped score 15 is shown in FIGS.
Are formed on the outer surface of the lid 3 as shown in FIG. As shown in FIG. 3, the score 15 has a bottom surface reaching the surface of the second adhesive layer 9 of the laminated film. The tab 16 made of an OPP molded product is, for example, a nylon-based adhesive layer 1.
7 is fixed to the outer surface of the lid 3. The tab 16 is slightly smaller than the score 15, and has a structure in which a ring 16b is formed at the right end of a main body 16a similar to the score 15.

In the pull-top type sealed container having such a structure, when the container body 1 is held by one hand and the ring 16b of the tab 16 is vertically raised by the finger of the other hand, as shown in FIG. The tip of the main body 16a of the dove 16 presses the lid 3 surrounded by the score 15 with the adhesive layer 17 as a fulcrum. The main body 1 of the tab 16
At the time of pressing by the tip of 6a, the pressing force concentrates on the weak score 15 cut into the lid 3. As shown in FIG. 3, the layer structure of the lid 3 at the bottom of the score 15 has a PE film 4, a first adhesive layer 5, a vapor-deposited aluminum thin film 6, a sealing thin film 7, and a large number of non-through holes as shown in FIG. The perforated porous OPP film 8 and the second adhesive layer 9, and the porous OPP film 8 has a large number of fine unpenetrated holes 14 acting as tearing starting points (breaking starting points). . For this reason, when the tab 16 is pressed, as shown in FIG.
5, the lid 3 inside the portion surrounded by the score 15 is depressed toward the inner surface side as shown in FIG. In this state, when the ring portion 16b of the tab 16 is pulled upward, the tab 16 is adhered by the adhesive layer 17, and a pulling force is applied to the inside of the lid 3 surrounded by the score 15. As shown in FIG. 6, the broken portion of the score 15 is further enlarged in the pulling direction to form a substantially U-shaped opening hole 18 as shown in FIG. After opening, the broken piece 19 of the lid 3 and the tab 16 remain on the lid 3 without being separated from the lid 3.

Accordingly, in the above-mentioned pull-top type sealed container, since the container body 1 and the lid 3 are made of a laminated film based on paper, the container can be disposed of as "burnable refuse" after use.

Injection (filling) of a liquid content such as orange juice can be performed at the stage of the container body 1 having a large injection port, so that the injection time of orange juice can be shortened. Moreover, since the lid 3 is attached to the upper opening 2 of the container main body 1 after the injection, air quality can be prevented from being mixed into the inside of the sealed container and deterioration of the orange juice quality due to oxidation or the like can be prevented during long-term storage. .

Further, the gas barrier property at the point of the score 15 of the lid 3 can be ensured by the vapor-deposited aluminum thin film 6 as a layer constituting material at the bottom as shown in FIG. It is possible to prevent a decrease in quality such as taste.

Further, by using a porous OPP film 8 having a large number of fine non-through holes 14 serving as fracture starting points as one of the laminated films constituting the lid 3, the tab 16 attached to the lid 3 is formed. The lid 3 can be easily broken along the score 15 by rising and pulling in the vertical direction to form and open the substantially U-shaped opening hole 18.

In the above-described embodiment, a vapor-deposited Al thin film is used as a vapor-deposited thin film, which is a layer constituent material of the lid, but a sealed container having excellent gas-barrier properties can be obtained by using a vapor-deposited silicon oxide thin film. realizable.

In the above embodiment, an example in which the present invention is applied to a pull-top sealed container containing orange juice has been described.
The present invention can be similarly applied to a pull-top type sealed container containing yogurt and other liquid contents.

[0040]

As described in detail above, according to the present invention, the container body and the lid are made of a paper-based laminated film, and can be disposed of as "burnable refuse" after use, and can be used as orange juice. It is possible to provide a pull-top sealed container which has a high filling efficiency of liquid contents, a high barrier property against liquid contents, can maintain taste and the like even during long-term storage, and is extremely easy to open.

[Brief description of the drawings]

FIG. 1 is a top view showing a pull-top type sealed container according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged cross-sectional view of the vicinity of the score of the lid of FIG. 1;

FIG. 4 is a perspective view showing an opening process of the pull-top sealed container of FIG. 1;

FIG. 5 is an enlarged cross-sectional view of the vicinity of the score of the lid at the time of opening of FIG. 4;

FIG. 6 is a perspective view showing a state immediately after opening the pull-top sealed container of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Container main body, 2 ... Upper opening part, 3 ... Lid, 6 ... Vapor-deposited aluminum thin film, 7 ... Sealing thin film, 8 ... Porous OPP film, 10 ... Paper, 14 ... Non-through hole, 15 ... Score, 16 ... tab 18 ... opening hole.

Claims (4)

[Claims] 1. A container body having an upper opening and comprising a laminated film based on paper, at least a heat-fusible resin film, a first adhesive layer, a vapor-deposited thin film having a gas barrier property, and a sealing thin film from the inner surface side. A porous organic resin film having a large number of non-through holes, a second adhesive layer, paper, a third adhesive layer, and a surface protective organic resin film laminated in this order, the laminated film comprising: A lid attached to the opening of the main body in a liquid-tight manner, a U-shape formed on the outer surface of the lid so that the bottom surface reaches the middle of the paper of the laminated film or the surface of the second adhesive layer or A U-shaped score, fixed to the lid via an adhesive layer, presses the inner lid portion surrounded by the score, breaks the vicinity of the bent portion of the score, and further In front of the enclosed inside A pull-top-type sealed container, comprising: a plastic tab for lifting up the cover portion and enlarging and opening the broken portion of the score. 2. The porous organic resin film has 500 fine through-holes having an average opening diameter of 0.5 to 100 μm / 500.
^2. The pull-top sealed container according to claim 1, wherein the sealed resin container is an organic resin film having a thickness of 3 to 20 [mu] m and having an aperture of a density of ² cm or more. 3. A laminate of a porous organic resin film, a sealing thin film, and a vapor-deposited thin film having a gas barrier property, among the laminated films constituting the lid, has a structure in which the non-through hole of the porous organic resin film has an opening. 2. The method according to claim 1, wherein the opposite surface is coated with a sealing film, and aluminum is deposited on the surface of the sealing film.
The pull-top sealed container according to the above. 4. The plastic tab is fixed to the lid via an adhesive layer, an outer peripheral edge of at least one end matches the bent portion of the score, and has a finger holding portion at the other end. The pull-top sealed container according to claim 1, characterized in that: