JP2024172620A - Delaminated container - Google Patents

Abstract

To provide a delamination container allowed to prevent a flow passage from being blocked by an excessive volume-reduction deformation into flattening at a squeeze portion precedently to another portion when a content is ejected.SOLUTION: A delamination container 1, in a bottle shape having an outer layer 2, an inner layer 3 and an external-air introducing port 8, comprises a cylindrical mouth 4, a shoulder 5 that has a shape gradually increasing in diameter downward and continues to a lower end of the mouth 4, a trunk 6 that has a squeeze portion 6a and continues to a lower end of the shoulder 5, and a bottom 7 that has a heel portion 7a having a shape gradually decreasing in diameter downward and a tread portion 7b and continues to a lower end of the trunk 6. In the delamination container 1, provided that a wall thickness of the inner layer 3 at a maximum diametrical portion in the shoulder 5 is A and a wall thickness of the inner layer 3 at a vertically central position 6a3 in the squeeze portion 6a is B, the wall thickness of the inner layer 3 in the squeeze portion 6a is greater than the wall thickness of the inner layer 3 in the shoulder 5 so as to give B=1.2A-2.5A.SELECTED DRAWING: Figure 1

Description

The present invention relates to a peelable laminate container that includes an outer layer, a shrinkable and deformable inner layer that is peelably laminated on the inner surface of the outer layer, and an outside air inlet that is connected between the outer layer and the inner layer.

The peelable laminated container having the above-mentioned configuration is widely used as a container for storing contents such as food seasonings such as soy sauce or beverages, cosmetics such as lotion, and toiletries such as shampoo, conditioner, or liquid soap. After the contents are discharged to the outside, the peelable laminated container can introduce outside air between the outer layer and the inner layer from the outside air inlet to reduce the volume of the inner layer in accordance with the discharge of the contents. This allows the contents to be discharged without being replaced by outside air, suppressing contact of the contents stored in the inner layer with the outside air and suppressing deterioration or alteration of the contents.

Conventionally, such peelable laminated containers include a bottle-shaped container having a cylindrical mouth, a shape that gradually expands in diameter downward, a shoulder connected to the lower end of the mouth, a squeeze part, a body connected to the lower end of the shoulder, a heel part and a ground part that gradually contract in diameter downward, and a bottom connected to the lower end of the body, and a squeeze type container that can push the contents stored inside the container out through the mouth and discharge them to the outside by squeezing (pressing) the squeeze part of the body (see, for example, Patent Document 1).

JP 2021-41989 A

However, in the above-mentioned conventional peelable laminate container, when the squeeze section of the body is squeezed to discharge the contents, and then the squeeze is released and the inner layer undergoes volume reduction deformation relative to the outer layer, the squeeze section of the inner layer undergoes excessive volume reduction deformation and collapses before other sections, obstructing the flow path, which can cause problems such as an increase in the amount of contents remaining at the bottom, making it impossible to discharge the contents on the bottom side, or taking longer to discharge the contents the next time the squeeze section is squeezed.

The present invention was made in consideration of these problems, and its purpose is to provide a peelable laminate container that can prevent the squeeze section from excessively reducing in volume and collapsing before other sections when the contents are dispensed, thereby preventing obstruction of the flow path.

The peelable laminated container of the present invention is a bottle-shaped container that has an outer layer, an inner layer that is peelably laminated on the inner surface of the outer layer and is freely shrinkable and deformable, and an air inlet that is connected between the outer layer and the inner layer. The bottle-shaped container has a cylindrical mouth, a shape that gradually expands in diameter downward, a shoulder that is connected to the lower end of the mouth, a squeeze part, a body that is connected to the lower end of the shoulder, a heel part and a ground part that have a shape that gradually reduces in diameter downward, and a bottom that is connected to the lower end of the body. The thickness of the inner layer at the maximum diameter part of the shoulder is A, and the thickness of the inner layer at the vertical center position of the squeeze part is B, so that B = 1.2A to 2.5A.

In the above configuration, it is preferable that the peelable laminated container of the present invention has B=1.4A to 2.5A.

The present invention provides a peelable laminate container that can prevent the squeeze section from excessively reducing in volume and collapsing before other sections when the contents are dispensed, thereby preventing obstruction of the flow path.

FIG. 1 is a front view of a delaminating container according to an embodiment of the present invention. FIG. 2 is a plan view of the delaminating container shown in FIG.

The following provides a detailed explanation of an example of a peelable laminate container 1 according to one embodiment of the present invention, with reference to the drawings.

In this specification and claims, the vertical direction refers to the vertical direction (the direction in which axis O extends) when the peelable laminate container 1 is in an upright position as shown in Figure 1, and the radial direction refers to the direction passing through axis O of the peelable laminate container 1 and perpendicular to axis O.

The peelable laminate container 1 shown in FIG. 1 is a squeeze type that can be used to store a variety of contents, such as food seasonings such as soy sauce, or foods such as beverages, cosmetics such as lotion, and toiletries such as shampoo, conditioner, or liquid soap. The peelable laminate container 1 has a double structure with an outer layer 2 and an inner layer 3, both of which are made of synthetic resin.

The outer layer 2 constitutes the outer shell of the peelable laminate container 1. In this embodiment, the outer layer 2 has a single-layer structure made of polyethylene terephthalate (PET).

The inner layer 3 is formed in a bag shape that is thinner than the outer layer 2, and is peelably laminated to the inner surface of the outer layer 2. Peeling of the inner layer 3 from the inner surface of the outer layer 2 may be peeling from an adhered state, peeling from a pseudo-adhered state in the case of incompatible resin laminates, or separation from a tightly adhered state.

The inside of the inner layer 3 is a storage space S, in which contents can be stored. As the contents are poured out from the storage space S to the outside, the inner layer 3 peels off from the inner surface of the outer layer 2 and is capable of freely reducing and deforming, i.e., collapsing, so as to reduce its internal volume. In this embodiment, the inner layer 3 is also made of polyethylene terephthalate (PET).

As described above, in this embodiment, the peelable laminate container 1 is made of polyethylene terephthalate, with both the outer layer 2 and the inner layer 3 being made of biaxially stretchable polyethylene terephthalate. Examples of such polyethylene terephthalate include homo-PET, but other PET such as IPA (isophthalic acid) modified PET or CHDM modified PET can also be used. The polyethylene terephthalate constituting the outer layer 2 and the polyethylene terephthalate constituting the inner layer 3 can be of the same or different configurations.

By making the outer layer 2 and inner layer 3 out of polyethylene terephthalate, the delaminated container 1 can be made lightweight, strong, and highly transparent.

The outer layer 2 and the inner layer 3 are not limited to being made of polyethylene terephthalate, but may be made of other synthetic resin materials, such as polypropylene (PP) or polyethylene (PE). Furthermore, the outer layer 2 and the inner layer 3 are not limited to being made of a single layer structure, but may be made of a multi-layer structure to improve barrier properties, etc.

The peelable laminated container 1 has a bottle shape with a mouth 4, a shoulder 5 connected to the lower end of the mouth 4, a body 6 connected to the lower end of the shoulder 5, and a bottom 7 connected to the lower end of the body 6.

The mouth portion 4 is cylindrical. In this embodiment, as shown in Figs. 1 and 2, the mouth portion 4 is cylindrical with its center on the axis O, and its outer circumferential surface is integrally provided with a male thread 4a for attaching a member such as a pouring cap. In addition, a neck ring 4b is integrally provided below the male thread 4a of the mouth portion 4.

The mouth 4 can also be configured with a protrusion on its outer periphery, instead of the male thread 4a, that allows a member such as a pouring cap to be engaged in an undercut by tapping. The mouth 4 can also be configured without a neck ring 4b.

As shown in FIG. 1, in this embodiment, an outside air inlet 8 is provided in the mouth 4. The outside air inlet 8 is provided as a through hole that penetrates the outer layer 2 in the radial direction in the portion that constitutes the mouth 4 of the outer layer 2. The outside air inlet 8 is connected between the outer layer 2 and the inner layer 3, and can introduce outside air between the outer layer 2 and the inner layer 3 as the inner layer 3 peels off from the outer layer 2.

The shoulder portion 5 is shaped so that its diameter gradually increases downward. In this embodiment, the shoulder portion 5 is dome-shaped and protrudes outward from the container, and as can be seen in FIG. 2, its cross-sectional shape perpendicular to the axis O is substantially circular.

The shoulder portion 5 can also be configured with two different types of concave ribs 11, 12 (for convenience, only one concave rib 11, 12 is labeled in FIG. 1) that are different in shape and arranged alternately at equal intervals in the circumferential direction. These concave ribs 11, 12 are each groove-shaped, recessed toward the inside of the container and extending vertically. By configuring the shoulder portion 5 with multiple concave ribs 11, 12, an outside air passage can be easily formed between the outer layer 2 and the inner layer 3 from the outside air inlet 8 provided in the mouth portion 4 toward the body 6, making it easier to peel the inner layer 3 from the outer layer 2 at the body 6.

The shape of the shoulder portion 5 can be changed in various ways as long as it gradually expands in diameter downward. The shoulder portion 5 can also be configured without the recessed ribs 11 and 12.

As shown in FIG. 1, the body 6 has a squeeze section 6a. In this embodiment, in addition to the squeeze section 6a, the body 6 has a lower body section 6b that is connected to the lower side of the squeeze section 6a.

The squeeze section 6a is connected to the lower end of the shoulder section 5 at its upper end 6a1 and smoothly connected to the upper end of the lower body section 6b at its lower end 6a2, and gradually and smoothly tapers in diameter downward from the upper end 6a1 and upward from the lower end 6a2, forming a narrowed shape with a minimum diameter at the vertical center position 6a3.

The squeeze portion 6a is flexible, and can be elastically deformed radially inward (inside the container) by being squeezed (pressed) radially inward. The squeeze portion 6a is also restorable, and can return to its original shape from the deformed state when the squeeze is released. The peelable laminate container 1 can push the contents stored in the storage space S out through the mouth portion 4 and eject them from the container by squeezing (pressing) the squeeze portion 6a radially inward.

The squeeze section 6a can be configured with multiple vertical grooves extending in the vertical direction or multiple vertical grooves extending in a spiral shape around the axis O, so that an outside air passage can be easily formed between the outer layer 2 and the inner layer 3, and the inner layer 3 can be easily peeled off from the outer layer 2.

The lower body portion 6b is cylindrical with its center on the axis O, and its upper end is smoothly connected to the lower end 6a2 of the squeeze portion 6a. In this embodiment, the lower body portion 6b is cylindrical. The lower body portion 6b has higher rigidity than the squeeze portion 6a, and is not easily deformed together with the squeeze portion 6a when the squeeze portion 6a is squeezed.

The lower body 6b may be configured to have a groove-shaped annular recessed rib 6b1 extending in the circumferential direction on its outer circumferential surface. In this embodiment, the lower body 6b has two annular recessed ribs 6b1 arranged in the vertical direction, but only one or three or more annular recessed ribs 6b1 may be provided. With this configuration, the rigidity of the lower body 6b is made higher than that of the squeeze section 6a, and deformation of the lower body 6b together with the squeeze section 6a when the squeeze section 6a is squeezed is more effectively suppressed, thereby further improving the discharge operability of the squeeze section 6a. The lower body 6b may be configured not to have the annular recessed rib 6b1.

It is preferable that the squeeze section 6a is a section whose diameter is smaller than the maximum diameter of the shoulder section 5 and the maximum diameter of the lower body section 6b. If the body section 6 does not have the lower body section 6b, it is preferable that the squeeze section 6a is a section whose diameter is smaller than the maximum diameter of the shoulder section 5 and the diameter of the connecting section between the body section 6 and the bottom section 7. Here, the squeeze section 6a having a smaller diameter than the comparison object may mean that the squeeze section 6a has a shape that gradually reduces in diameter toward the center in the vertical direction of the comparison object, or that the squeeze section 6a is a small diameter section that is connected to the comparison object via a step (the small diameter section may have a uniform diameter in the vertical direction or the diameter may change smoothly).

The bottom 7 has a heel portion 7a and a ground contact portion 7b, and the upper end of the heel portion 7a is connected to the lower end of the lower body portion 6b to close the lower end of the body portion 6. The heel portion 7a is shaped so that its diameter gradually decreases downward, and the ground contact portion 7b is connected to its radially inner end. The ground contact portion 7b is annular about the axis O, and its inner portion forms a central recess 7c that is recessed upward. Note that the ground contact portion 7b is not limited to being annular, and may be composed of multiple portions spaced apart in the circumferential direction.

If the shoulder 5 and the squeeze section 6a of the body 6 of the inner layer 3 are of equal thickness, after the squeeze section 6a is squeezed to eject the contents, when the squeeze section 6a is released and the inner layer 3 undergoes volume reduction deformation relative to the outer layer 2, the squeeze section 6a of the inner layer 3 will undergo volume reduction deformation and collapse before other parts, obstructing the flow path and making it impossible to eject the contents on the lower body section 6b and bottom 7 side.

In contrast, in the peelable laminate container 1 according to this embodiment, when the thickness of the inner layer 3 at the maximum diameter portion of the shoulder 5 is A and the thickness of the inner layer 3 at the vertical center position 6a3 of the squeeze section 6a is B, the thickness (average thickness) of the inner layer 3 at the squeeze section 6a is thicker than the thickness (average thickness) of the inner layer 3 at the maximum diameter portion of the shoulder 5 so that B = 1.2A to 2.5A. As a result, in the peelable laminate container 1, after the squeeze section 6a is squeezed to discharge the contents, when the squeeze section 6a is released and the inner layer 3 undergoes volume reduction deformation relative to the outer layer 2, the inner layer 3 is prevented from excessively reducing in volume and collapsing in the squeeze section 6a before the shoulder 5, thereby blocking the flow path. The thickness of the inner layer 3 in the squeeze section 6a may be substantially constant in a predetermined range in the vertical direction including the vertical center position 6a3, and the thickness may gradually decrease from the constant portion toward the shoulder section 5 and the lower torso section 6b. This configuration can suppress uneven volume reduction deformation of the portion of the squeeze section 6a that deforms most when squeezed after the squeeze is released.

In particular, it is preferable that the thickness of the inner layer 3 in the squeeze section 6a is thicker than that of the inner layer 3 in the shoulder section 5 so that B = 1.4A to 2.5A. With this configuration, when the squeeze section 6a is squeezed to discharge the contents, and then the squeeze section 6a is released and the inner layer 3 undergoes volumetric deformation relative to the outer layer 2, the inner layer 3 undergoes excessive volumetric deformation and collapse in the squeeze section 6a prior to the shoulder section 5, which would cause obstruction of the flow path, can be more effectively prevented.

If B is less than 1.2A, i.e., if the thickness B of the inner layer 3 at the vertical center position 6a3 of the squeeze section 6a is less than 1.2 times the thickness A of the inner layer 3 at the maximum diameter portion of the shoulder 5, when the squeeze section 6a is squeezed to discharge the contents and the squeeze section 6a is released to reduce the volume of the inner layer 3 relative to the outer layer 2, the inner layer 3 will be excessively reduced in volume and crushed in the squeeze section 6a before the shoulder 5, and the flow path will not be sufficiently prevented from being obstructed. On the other hand, if B is greater than 2.5A, i.e., if the thickness B of the inner layer 3 at the vertical center position 6a3 of the squeeze section 6a is greater than 2.5 times the thickness A of the inner layer 3 at the maximum diameter portion of the shoulder 5, the resistance when squeezing the squeeze section 6a will be large, resulting in a problem of reduced discharge operability of the squeeze section 6a.

In this way, according to the peelable laminate container 1 of this embodiment, when the thickness of the inner layer 3 at the maximum diameter part of the shoulder 5 is A and the thickness of the inner layer 3 at the vertical center position 6a3 of the squeeze section 6a is B, the thickness of the inner layer 3 at the squeeze section 6a is made thicker than the thickness of the inner layer 3 at the shoulder 5 so that B = 1.2A to 2.5A. Therefore, when the squeeze section 6a is squeezed to discharge the contents, and the squeeze section 6a is released and the inner layer 3 undergoes volume reduction deformation relative to the outer layer 2, the inner layer 3 is prevented from excessively reducing in volume and collapsing in the squeeze section 6a before the shoulder 5 in the squeeze section 6a, which would obstruct the flow path. This can prevent problems such as the contents on the lower body 6b or bottom 7 side being unable to be discharged, resulting in an increase in the remaining amount, or the next time the squeeze section 6a is squeezed, it takes a long time to discharge.

In the peelable laminate container 1 according to this embodiment, the thickness of the inner layer 3 in the squeeze portion 6a can be made thicker than the thickness of the inner layer 3 in the lower body 6b so that B=1.2C to 2.5C, where C is the thickness of the inner layer 3 at a position 15 mm above the ground contact portion 7b in the lower body 6b. In other words, the thickness of the inner layer 3 in the squeeze portion 6a can be made thicker than the thickness of the inner layer 3 in the lower body 6b so that the thickness B of the inner layer 3 at the vertical center position 6a3 of the squeeze portion 6a is 1.2 to 2.5 times the thickness C of the inner layer 3 at a position 15 mm above the ground contact portion 7b in the lower body 6b.

With this configuration, after the squeeze section 6a is squeezed to eject the contents, when the squeeze section 6a is released and the inner layer 3 undergoes volume reduction deformation relative to the outer layer 2, the inner layer 3 is prevented from excessively reducing in volume and collapsing in the squeeze section 6a before the lower body section 6b does, which would cause the flow path to be blocked. This prevents problems such as the contents on the lower body section 6b and bottom section 7 side being unable to be ejected, resulting in an increase in the remaining amount, or the next time the squeeze section 6a is squeezed, it takes longer to eject the contents.

In particular, it is preferable that the thickness of the inner layer 3 in the squeeze section 6a is thicker than that in the lower body section 6b so that B = 1.4C to 2.5C. With this configuration, when the squeeze section 6a is squeezed to discharge the contents, and then the squeeze section 6a is released and the inner layer 3 undergoes volumetric deformation relative to the outer layer 2, the inner layer 3 undergoes excessive volumetric deformation and collapse in the squeeze section 6a prior to the lower body section 6b, which would cause obstruction of the flow path, can be more effectively prevented.

If B is less than 1.2C, i.e. if the thickness B of the inner layer 3 at the vertical center position 6a3 of the squeeze section 6a is less than 1.2 times the thickness C of the inner layer 3 at a position 15 mm above the ground contact portion 7b of the lower body 6b, then after the squeeze section 6a is squeezed to eject the contents, when the squeeze section 6a is released and the inner layer 3 undergoes volume reduction deformation relative to the outer layer 2, the inner layer 3 will undergo excessive volume reduction deformation and collapse in the squeeze section 6a prior to the lower body 6b, and it is not possible to sufficiently prevent this from causing obstruction of the flow path. On the other hand, if B is greater than 2.5C, i.e., if the thickness B of the inner layer 3 at the vertical center position 6a3 of the squeeze portion 6a is greater than 2.5 times the thickness C of the inner layer 3 at a position 15 mm above the ground contact portion 7b of the lower body 6b, the resistance when squeezing the squeeze portion 6a will increase, resulting in a problem of reduced discharge operability of the squeeze portion 6a.

The peelable laminate container 1 configured as above is a blow molded product.

The delaminated container 1 according to this embodiment is formed by biaxially stretching and blow molding a double-structure preform assembly that combines an outer body corresponding to the outer layer body 2 formed by injection molding a synthetic resin material (polyethylene terephthalate) with an inner body corresponding to the inner layer body 3 formed by injection molding a synthetic resin material (polyethylene terephthalate) separately from the outer body.

In this case, by making the thickness of the portion of the inner body that is stretched to form the portion corresponding to the squeeze portion 6a of the inner layer 3 thicker than the thickness of the portion of the inner layer 3 that is stretched to form the portion corresponding to the shoulder portion 5 or lower body portion 6b, it is possible to easily form a peelable laminate container 1 in which the thickness of the inner layer 3 at the squeeze portion 6a is thicker than the thickness of the inner layer 3 at the shoulder portion 5 or lower body portion 6b.

The peelable laminate container 1 can also be formed by biaxially stretching and blow molding a laminate preform having a laminated structure of a synthetic resin material corresponding to the outer layer 2 and a synthetic resin material corresponding to the inner layer 3.

The delaminated container 1 can also be formed by extrusion blow molding (EBM), in which a cylindrical laminated parison made of a laminate of a synthetic resin material corresponding to the outer layer 2 and a synthetic resin material corresponding to the inner layer 3 is blow molded using a split mold.

In either case, by making the thickness of the portion of the inner layer 3 that is stretched to form the portion corresponding to the squeeze portion 6a thicker than the thickness of the portion of the inner layer 3 that is stretched to form the portion corresponding to the shoulder portion 5 or the lower body portion 6b, it is possible to easily form a peelable laminate container 1 in which the thickness of the inner layer 3 at the squeeze portion 6a is thicker than the thickness of the inner layer 3 at the shoulder portion 5 or the lower body portion 6b.

The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the invention.

For example, in the above embodiment, the squeeze section 6a is tapered downward from the upper end 6a1 and upward from the lower end 6a2, with the diameter tapering to a minimum at the vertical center position 6a3. However, the squeeze section 6a may be cylindrical and extend straight between the upper end 6a1 and the lower end 6a2 without tapering. The body 6 may not have a lower body portion 6b, and may be entirely the squeeze section 6a, or may have a cylindrical upper body portion between the squeeze section 6a and the shoulder section 5, or may have a cylindrical upper body portion between the squeeze section 6a, the lower body portion 6b, and the shoulder section 5.

In the above embodiment, the squeeze portion 6a is smoothly connected to the lower end of the shoulder portion 5 at the upper end 6a1 and smoothly connected to the upper end of the lower torso portion 6b at the lower end 6a2, but it may be connected to the lower end of the shoulder portion 5 at the upper end 6a1 via a step, or to the upper end of the lower torso portion 6b at the lower end 6a2 via a step, or to the lower end of the shoulder portion 5 at the upper end 6a1 via a step and to the upper end of the lower torso portion 6b at the lower end 6a2 via a step. Even in this case, the squeeze portion 6a may be a cylindrical shape that extends straight between the upper end 6a1 and the lower end 6a2 without narrowing in diameter. In this case, multiple concave ribs extending vertically may be arranged at intervals in the circumferential direction at the step between the squeeze portion 6a and the shoulder portion 5, or at the step between the squeeze portion 6a and the lower body portion 6b or the bottom portion 7, to increase the peelability of the inner layer 3 from the outer layer 2 at the step.

In addition, in the above embodiment, the outside air inlet 8 is provided as a through hole that penetrates the part constituting the mouth 4 of the outer layer 2 in the radial direction, but this is not limited to this, and it may be provided in any part of the shoulder 5, body 6, or bottom 7 as long as it is configured to be able to introduce outside air between the outer layer 2 and the inner layer 3. Furthermore, the shape of the inlet is not limited to a through hole, and it may be a slit or a gap that opens at the boundary between the outer layer 2 and the inner layer 3.

Furthermore, in the above embodiment, the thickness of the inner layer 3 in the squeeze portion 6a is made thicker than the thickness of the inner layer 3 in the lower torso portion 6b so that B = 1.2C to 2.5C or 1.4C to 2.5C, where C is the thickness of the inner layer 3 in the lower torso portion 6b at a position 15 mm above the ground contact portion 7b. However, if the lower torso portion 6b does not exist at a position 15 mm above the ground contact portion 7b or if the lower torso portion 6b is not provided in the torso portion 6, the thickness of the inner layer 3 in the squeeze portion 6a may be made thicker than the thickness of the inner layer 3 in the heel portion 7a so that B = 1.2C to 2.5C or 1.4C to 2.5C, where C is the thickness at the vertical center position of the heel portion 7a.

REFERENCE SIGNS LIST 1 delaminating container 2 outer layer 3 inner layer 4 mouth 4a male thread 4b neck ring 5 shoulder 6 body 6a squeeze portion 6a1 upper end 6a2 lower end 6a3 vertical center position 6b lower body portion 6b1 annular concave rib 7 bottom 7a heel portion 7b ground contact portion 7c central recess 8 outside air inlet 11 concave rib 12 concave rib S storage space O axis

Claims (2)

A peelable laminated container comprising an outer layer, an inner layer that is peelably laminated on the inner surface of the outer layer and is capable of shrinking and deforming, and an outside air inlet that is connected between the outer layer and the inner layer,
A cylindrical mouth portion;
A shoulder portion having a shape that gradually expands in diameter downward and is connected to a lower end of the mouth portion;
A body portion having a squeeze portion and connected to a lower end of the shoulder portion;
The bottle has a heel portion and a ground contact portion, the heel portion having a shape that gradually decreases in diameter downward, and a bottom portion connected to the lower end of the body portion.
A peelable laminated container, characterized in that when the thickness of the inner layer body at the maximum diameter part of the shoulder portion is A and the thickness of the inner layer body at the vertical center position of the squeeze portion is B, the thickness of the inner layer body at the squeeze portion is thicker than the thickness of the inner layer body at the shoulder portion such that B = 1.2A to 2.5A. The peelable laminate container according to claim 1, in which B is 1.4A to 2.5A.

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