JP3954952B2 - Dispensing container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dispensing container capable of dispensing contents without allowing outside air to enter the container, and is composed of an outer layer formed into a predetermined shape and an inner layer laminated in a peelable manner on the outer layer. The present invention relates to a so-called delamination bottle, which is a combination of a container main body and a base cup attached to the bottom of the container main body.
[0002]
[Prior art]
A flexible bag-like inner layer is laminated on the outer layer formed into a predetermined shape in a state where it can be easily peeled off from the outer layer, and a spout for the contents is provided at the upper part to allow outside air to flow between the outer layer and the inner layer. 2. Description of the Related Art Blow-molding dispensing containers generally known as delami bottles, which are configured by opening an introduction port for introduction, are known.
[0003]
Such a pouring container is obtained by co-extrusion of an incompatible outer layer parison and an inner layer parison into a laminated parison, crushing the bottom with a pinch-off portion of a blow mold, and blow molding the laminated parison. It is done.
[0004]
However, since the bottom seal portion at the bottom basically has a laminated structure of an outer layer portion and an inner layer portion that are hardly compatible, a bottom crack may occur in the outer layer portion.
[0005]
When this bottom crack occurs, the slit is formed at the bottom of the pouring container, so that the mechanical strength of the bottom of the pouring container decreases, and when used in a water field, However, there is an inconvenience that it penetrates between the inner and outer layers.
[0006]
For this reason, conventionally, a special pin or an adhesive layer is provided so that the outer layer portion and the inner layer portion of the bottom seal portion are firmly fused or bonded and fixed to prevent the occurrence of bottom cracks at the bottom seal portion, and the dispensing container The outside air inlet was opened by a dedicated processing operation in the vicinity of the spout or the outer layer of the trunk. In this way, the bottom of the dispensing container has a strong and stable mechanical strength, and the outside air inlet is provided at a place where the outside air can be smoothly introduced without impairing the appearance of the dispensing container. .
[0007]
On the other hand, if the slit opened in the bottom seal portion due to the bottom crack functions as an outside air introduction port between the outer layer and the inner layer, the formation of the outside air introduction port becomes extremely simple and reliable. Therefore, in a pouring container in which the base cup is fitted to the bottom of the container body by an undercut, the base cup is provided with a pressing portion that presses the bottom side wall of the container body, and the base cup is pressed when the base cup is fitted to the bottom. There is known an invention in which a pressing force is applied to the bottom seal portion to cause a bottom crack in the outer layer and a slit as an outside air inlet is formed in the bottom portion. (For example, refer to Patent Document 1).
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-301404.
[0009]
[Problems to be solved by the invention]
However, the base cup is inserted into the bottom of the container body by undercutting, and the base cup is inserted. The bottom side wall of the container body is pressed to apply a pressing force to the bottom seal portion to open a slit due to bottom cracking. In a container, when the dispensing container is made of a hard material, a sufficient fitting force can be obtained and the base cup can be fixed to the container body, but when the dispensing container is made of a soft material, the base cup May not be able to be fixed with a sufficient fitting force.
[0010]
If the dispensing container is formed of a soft material, the pressing force applied to the bottom seal when the base cup is fitted into the container body is dispersed due to the elasticity of the container body side wall and the base cup. It is conceivable that a slit, that is, an opening is not formed at the bottom of the container main body due to insufficient pressure and fitting of the base cup.
[0011]
The present invention solves the above-described problems, and in the pouring container in which the base cup is attached to the bottom of the container body, the base cup is securely attached and the bottom seal portion is reliably cracked, and the outer layer, the inner layer, It is an object of the present invention to provide a dispensing container capable of easily and reliably forming a slit for introducing outside air between the two.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention comprises an outer layer, which is blow-molded from a cylindrical parison, and includes a flexible inner layer that is detachably laminated on the outer layer, and has a bottom. A container main body having a cylindrical portion that forms a spout for contents in an upper portion of a cylindrical shape, and a bottom seal portion that is a cut-out portion of the parison formed along a parting line on a lower bottom plate wall surface, and the container In a pouring container equipped with a base cup attached to the bottom of the main body and having an air circulation port opened,
The container body includes a male screw part on the bottom side surface,
When the base cup is screwed into the upper part of the inner surface of the cylindrical wall with the female screw part and the lower part is screwed into the bottom of the container body, the base plate wall is pressed from the side. A pouring container was configured by providing a narrow pressure part for opening a slit in the outer layer of the cut-out part.
[0013]
According to the first aspect of the present invention, since the base cup is assembled to the container main body by screwing between the male screw portion and the female screw portion, a plurality of spiral protrusions are formed on the container main body and the base cup. These protrusions function as reinforcing ribs, the assembly portion of the container body can be strengthened, and the fitting force between the base cup and the container body can be increased since the protrusions are assembled with a plurality of protrusions.
[0014]
Also, since the bottom plate wall is pressed from the side along with the screwing of the base cup, the bottom plate wall is gradually pressed while rotating the base cup. In addition, a slit for introducing outside air between the outer layer and the inner layer can be easily and reliably opened in the bottom plate wall of the container body.
[0015]
According to a second aspect of the present invention, in the pouring container according to the first aspect, the narrow pressure portion is constituted by at least a pair of protrusions protruding from the inner surface of the cylindrical wall and having a smaller interval than the outer diameter of the bottom plate wall. According to the second aspect of the present invention, the bottom plate wall is sandwiched between the protrusions and pressed from the side, so that the slit is reliably formed in the bottom seal portion.
[0016]
According to a third aspect of the present invention, in the pouring container according to the first aspect, the bottom plate wall is formed in an ellipse or an oval having a major axis in the parting line direction, and the interval between the narrow pressure portions is shorter than the major axis. Formed. According to the third aspect of the present invention, when the base cup is screwed, the long diameter portion of the bottom plate wall is sandwiched between the narrow pressure portions of the base cup, and is deformed by pressing to form a slit in the bottom seal portion.
[0017]
According to a fourth aspect of the present invention, in the pouring container according to the first or third aspect, the narrow pressure portion is formed in an ellipse or an oval shape having a longer major axis and a shorter minor axis than the outer diameter or major axis of the bottom plate wall. did. This also securely holds the bottom plate wall between the narrow pressure portions of the base cup and press-deforms to form a slit in the bottom seal portion.
[0018]
According to a fifth aspect of the present invention, in the dispensing container according to any one of the first to fourth aspects, the narrow pressure portion is erected from the bottom plate at a predetermined interval from the cylindrical wall inside the cylindrical wall. did. Accordingly, the reaction force generated by pressing the bottom plate wall is not transmitted from the narrow pressure portion to the female screw portion, and the screw connection at the screw portion is not loosened and the airtightness is not impaired.
[0019]
The invention according to claim 6 is the dispensing container according to any one of claims 1 to 5, wherein the narrow pressure portion is formed in a tapered shape in which the interval between the upper portion and the lower portion is narrowed. As a result, as the base cup is screwed, the pressing force generated on the bottom plate wall is increased, and the slit can be reliably formed by screwing the base cup.
[0020]
The invention according to claim 7 is the dispensing container according to any one of claims 1 to 6, wherein the container body is squeezable and squeezable, and the container body mouth tube portion is provided to be freely opened and closed. A first check valve that prevents the backflow of contents into the mouth tube portion and the inflow of outside air, and a base cup that is closely attached to the bottom of the container body and has an air circulation port opened in a bottomed bottom plate of a bottomed tube shape And a second check valve that is provided at the air circulation port so as to be freely opened and closed, and that prevents outside air from flowing out of the base cup. Thereby, even if it is a squeeze container with a comparatively flexible trunk | drum, a slit can be easily formed in a biting part.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a dispensing container according to the present invention will be described with reference to the drawings.
[0022]
FIG. 1 shows an embodiment of a dispensing container according to the present invention. The dispensing container 1 comprises a container body 2 and a base cup 12 attached to the bottom 6 of the container body 2. A brush 50 is detachably attached to the upper portion of 1 by screwing.
[0023]
The container body 2 is a blow molded product in which an outer layer 2a and an inner layer 2b are laminated as shown in the circle of FIG. 1, and the outer layer 2a is a synthetic resin material such as high-density polyethylene, polypropylene, polyethylene terephthalate, etc. The inner layer 2b is made of a synthetic resin material such as nylon, ethylene vinyl alcohol copolymer, low density polyethylene and the like having low compatibility with the outer layer 2a. It is formed into a bag shape that can be flexibly deformed.
[0024]
The outer layer 2a and the inner layer 2b of the container body 2 may have a single-layer structure or a laminated structure, and the outer layer 2a and the inner layer 2b are arranged in the entire height range of the container body 2 so that the inner layer 2b is appropriately warped and deformed. It is preferable to appropriately bond and fix with a belt-like adhesive layer (not shown) provided over. Moreover, the adhesive layer should just be provided 1 or more, and the number and width | variety are not specifically limited. In the case of a container form that can be deformed by squeeze, it is preferably provided at a symmetrical position. Further, in the same container form, two or parting lines P are provided at symmetrical positions on the parting line P (see FIG. 3). It is preferable that four are provided at symmetrical positions in the vicinity of the sheet in terms of reducing the remaining amount of contents.
[0025]
The body 3 of the container body 2 has a cylindrical shape, and an upper end of the body 3 is provided with an upright tube portion 4 serving as a spout for contents whose outer peripheral surface is threaded. At the lower end of 3, a bottomed cylindrical bottom 6 having a male screw 5 made of a spiral ridge is connected. The mouth tube portion 4 has an inner portion so that the above-described brush portion 50 can discharge the contents such as medicine from the tip of the brush portion 50 through the first check valve 10 that prevents the backflow of contents and the inflow of outside air. Is attached in a state of communication.
[0026]
As shown in FIG. 2, the bottom portion 6 includes a cylindrical peripheral wall 7 having a male screw 5 provided on the outer peripheral surface thereof, and a bottom plate wall 8 continuously provided at the lower end of the peripheral wall 7 and recessed inward of the container body 2. It is configured. As shown in FIG. 3 which is a side view of the bottom portion 6 and FIG. 4 which is a bottom view, the bottom plate wall 8 has a bottom seal portion 9 which is a parison cutout portion along the parting line P. It is formed in a ridge shape. FIG. 7 shows a cross section of the bottom seal portion 9. As shown in FIG. 7, in the bottom seal portion 9, the end portions of the inner layer 2b are bonded to each other, and the inner layer 2b is stuck inside the outer layer 2a in this state.
[0027]
FIG. 5 shows the base cup 12. The base cup 12 is injection-molded by polyethylene, polypropylene, ABS, AS or the like, and is a spiral protrusion that is screwed onto the inner peripheral surface of the bottomed cylindrical wall 13 with the male screw 5 of the container body 2. The female screw 14 which consists of this is rounded, and the bottom wall 15 of the flat disk shape is provided in a row at the lower end of the cylindrical wall 13.
[0028]
A valve holding cylinder 16 is erected on the bottom wall 15 at the center. The valve holding cylinder 16 has a communication port 17 as an air circulation port in the center, and a second check valve 23 is airtightly attached to the inside of the valve holding cylinder 16. In the second check valve 23, the valve membrane 24 is attached to the valve frame 25 so as to be opened and closed in the vertical direction, and the outside air is taken into the base cup 12. It is designed to prevent the outflow.
[0029]
Further, a projection 17 as a narrow pressure portion 18 is formed on the inner peripheral surface of the cylindrical wall 13. As shown in FIG. 6, which is a plan view of the base cup 12, a pair of protrusions 17 are provided so as to face each other with the center of the base cup 12 therebetween, and the distance a between the protrusions 17 is the diameter of the bottom plate wall 8 shown in FIG. When the base cup 12 is screwed into the bottom portion 6 and is smaller than b, the bottom plate wall 8 is disposed at a position where it always passes or abuts.
[0030]
By configuring the dispensing container 1 in this way, when the base cup 12 is screwed into the bottom portion 6 of the molded container body 2 and the bottom plate wall 8 passes through the female screw 14, the bottom plate wall 8 contacts the protrusion 17, It is sandwiched between narrow pressure portions 18 formed between the protrusions 17. Then, the bottom plate wall 8 receives a pressing force due to the pinching of the protrusion 17, and particularly when the parting line P passes through the position of the protrusion 17 as the base cup 12 rotates, the bottom seal portion 9 is seen from the direction along the parting line P. Are gradually pressed, the inner layer 2b is peeled off from the outer layer 2a by the pressing force, and the distance between the outer layers 2a is also increased by the pressing. The pressing force only peels the inner layer 2b from the outer layer 2a, and does not peel off the joining of the flexible inner layers 2b.
[0031]
Further, since a plurality of protrusions are formed in a spiral shape on the bottom portion 6 and the base cup 12 of the container body 2, the strength of such portions is increased, and the base cup 12 is screwed onto the bottom portion 6 of the container body 2. And they are fitted and screwed with great force.
[0032]
Therefore, as shown in FIG. 8, a slit 22 serving as an inlet for introducing outside air between the outer layer 2a and the inner layer 2b is opened in the bottom seal portion 9 of the bottom plate wall 8. When the base cup 12 is screwed into the bottom 6 of the container main body 2 and the male screw 5 and the female screw 14 are fastened, the base cup 12 is tightly and firmly fixed to the container main body 2 with the slit 22 opened. .
[0033]
Next, the usage method of the extraction container 1 is demonstrated. When the medicine is stored in the inner layer 2 b of the dispensing container 1 and the brush part 50 is attached to the mouth tube part 4, when the body part 3 is pushed from both sides, the inner layer 2 b is pushed together with the outer layer 2 a so that the medicine is at the tip of the brush part 50. It is discharged from. When the body part 3 is pushed back and restored to its original shape, the second check valve 23 is opened, the first check valve 10 is closed, the outside air flows into the base cup 12, and further passes through the slit 22. Thus, outside air enters between the outer layer 2a and the inner layer 2b. When the body part 3 is pushed in again, the pressure in the base cup 12 increases through the slit 22, but the second check valve 23 closes, so that the air between the outer layer 2a and the inner layer 2b does not flow out, and the inner layer 2b is pushed. Then, the medicine is discharged from the brush 50.
[0034]
Therefore, even when the medicine is ejected, the outer shape of the dispensing container 1 is not reduced in diameter, and a constant outer shape is always maintained, and the amount of medicine that only presses the barrel 3 can be ejected from the brush 50. it can. The protrusions 17 are not limited to a pair, and a plurality of pairs may be provided on the inner surface of the cylindrical wall 13.
[0035]
Another example of the dispensing container is shown in FIG. In this case, the bottom plate wall 8 of the container body 2 is formed into an oval shape having a major axis in the direction of the parting line P, while the interval between the narrow pressure portions 18 is narrower than the major axis of the bottom plate wall 8. If the pouring container 1 is configured in this way, when the base cup 12 is screwed into the container body 2, the long-diameter portion of the bottom plate wall 8 is pressed by the narrow pressure portion 18, and along the direction of the parting line P. Then, the bottom seal portion 9 is pressed and the slit 22 is opened. As a result, the bottom plate wall 8 is surely pressed by the projections 17 along the direction of the bottom seal portion 9, so that the slit can be opened efficiently.
[0036]
Further, the narrow pressure portion 18 may be formed in an ellipse or an oval instead of a circle. In this case, the bottom plate wall 8 is formed as an ellipse or an oval whose major axis is longer than the minor axis of the narrow pressure part 18, or a circle whose outer diameter is larger than the minor axis of the narrow pressure part 18.
[0037]
Another example of the dispensing container is shown in FIG. In this configuration, a pressing wall 19 is erected on the bottom plate 15 inside the cylindrical wall 13, and the pressing wall 19 is a narrow pressure portion 18. A slight space is provided between the pressing wall 19 and the cylindrical wall 13, and even if the narrow pressure portion 18 presses the bottom plate wall 8 and receives a reaction force thereof, it is between the pressing wall 19 and the cylindrical wall 13. The reaction force is not transmitted to the female screw 14 through the cylindrical wall 13 by providing the gap therebetween.
[0038]
Thereby, even if the narrow pressure portion 18 firmly presses the bottom plate wall 8, the reaction force does not affect the cylindrical wall 13, and does not affect the coupling between the male screw 5 and the female screw 14. Airtightness is maintained. The pressing wall 19 may be provided facing the inside of the cylindrical wall 13 or may be formed in a circumferential shape along the inner side of the cylindrical wall 13. Moreover, the shape is not limited to a circle.
[0039]
FIG. 11 shows another example. In this configuration, the cylindrical wall 13 as the narrow pressure portion 18 is formed in a taper shape with a lower interval from the upper portion. With this configuration, the space between the narrow pressure portions 18 is narrowed as the bottom portion 6 of the container body 2 advances into the base cup 12 by the screwing of the base cup 12, and the bottom plate wall 8 is more strongly pressed by the narrow pressure portion 18. Is done.
[0040]
The narrow pressure portion 18 formed in a taper may be a protrusion protruding on the inner surface of the cylindrical wall 13 or a circumferential shape along the cylindrical wall 13, and the cylindrical wall 13 is separate from the cylindrical wall 13. It may be provided inside with an interval. Further, in the case of a circumferential shape, it may be circular, oval, oval, triangular, quadrangular, or other polygonal shapes.
[0041]
In the above example, the dispensing container with the brush has been described as an example. However, the dispensing container according to the present invention is not limited to the one with the brush, and is a discharge container in which the mouth tube portion 4 of the container body 2 is only the dispensing port. Or other action members other than brushes may be attached, the container body is not a squeeze container, the outer layer is molded of a hard resin, and a check valve is not provided. -It is also possible to adopt a container configuration provided with a dispenser such as a spray. Furthermore, the present dispensing container can contain not only the above-mentioned drugs but also contents of various fields such as cosmetics, toiletries, foods, and the like.
[0042]
Although not shown, the air circulation port is not limited to the opening at the center of the base cup bottom plate, but is formed at an arbitrary position of the base cup bottom plate or the base cup inner wall and the container body side wall. It is also possible to use at least one of the parts as an air circulation port intermittently.
[0043]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be obtained.
[0044]
According to the first aspect of the present invention, in the pouring container in which the base cup is assembled to the container main body, the container main body is provided with a male screw portion on the bottom side surface, and the base cup is formed on the upper surface of the inner wall of the bottomed cylindrical body. A female screw part that is screwed into the male screw part, and a narrow pressure part that presses the bottom plate wall from the side and opens a slit in the outer layer of the cut-off part when the base cup is screwed into the bottom of the container body. First, since the base cup is assembled to the container main body by screwing between the male screw portion and the female screw portion, a plurality of spiral protrusions are formed on the container main body and the base cup, and these protrusions are Since it functions as a reinforcing rib, the assembly portion of the container body can be strengthened, and the fitting force between the base cup and the container body can be increased because the assembly is made with a plurality of protrusions.
[0045]
Second, since the bottom plate wall is pressed from the side as the base cup is screwed, the bottom plate wall is gradually pressed while rotating the base cup. Can be added to the bottom plate wall, and a slit for introducing outside air between the outer layer and the inner layer can be easily and reliably opened in the bottom plate wall of the container body.
[0046]
In the invention according to claim 2, in the pouring container according to claim 1, since at least a pair of protrusions are formed in the cylindrical wall of the base cup at an opposing interval smaller than the diameter of the bottom plate wall, the bottom plate wall is formed by the protrusions. It is possible to easily and reliably open a slit for introducing outside air between the outer layer and the inner layer in the cut-off portion by applying a pressing force to the outer layer.
[0047]
According to a third aspect of the present invention, in the pouring container according to the first aspect, the bottom plate wall is formed in an ellipse or an oval having a major axis in the parting line direction, and the interval between the narrow pressure portions is made shorter than the major axis. Therefore, a pressing force is reliably applied to the bottom plate wall from the narrow pressure portion, and a slit for introducing outside air between the outer layer and the inner layer can be easily and reliably opened in the cut-off portion.
[0048]
According to a fourth aspect of the present invention, in the pouring container according to the first or third aspect, the narrow pressure portion is formed in an ellipse or an oval shape having a longer major axis and a shorter minor axis than the outer diameter or major axis of the bottom plate wall. did. Also by this, a pressing force is surely applied to the bottom plate wall from the narrow pressure portion, and the slit for introducing the outside air between the outer layer and the inner layer can be easily and reliably opened in the biting portion.
[0049]
In the fifth aspect of the present invention, in the pouring container according to the first to fourth aspects, the narrow pressure portion is erected from the bottom plate at a predetermined interval from the cylindrical wall inside the cylindrical wall. The reaction force at the time of pressing is not transmitted from the narrow pressure portion to the cylinder wall, and does not affect the screwing between the container body and the base cup and the airtightness between them.
[0050]
In the invention according to claim 6, in the pouring container according to claims 1 to 5, since the narrow pressure portion is formed in a tapered shape with a lower interval from the upper portion, when the base cup is screwed, Along with this, the bottom plate wall is pressed greatly, and the slit can be surely formed in the biting portion.
[0051]
In the invention according to claim 7, in the pouring container according to claims 1 to 6, the container main body can be squeezed and can be opened and closed in the container main body mouth tube portion, and the container main body can be opened and closed. A first check valve that prevents backflow of contents and inflow of outside air; a base cup that is tightly attached to the bottom of the container main body and has an air flow port opened in a bottomed bottom plate having a bottom; and the air flow A second check valve is provided at the mouth so that it can be freely opened and closed, and prevents the outside air from flowing out of the base cup, making it easy to slit the cut-out part even if the barrel is a relatively flexible squeeze container. Can be formed.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal and enlarged front view showing an embodiment of a dispensing container according to the present invention.
2 is a partial side view showing a bottom portion of the container main body shown in FIG. 1. FIG.
FIG. 3 is a partial side view showing the bottom of the container body.
FIG. 4 is a bottom view of the container body.
FIG. 5 is a side sectional view of the base cup.
FIG. 6 is a plan view of a base cup.
FIG. 7 is an enlarged cross-sectional view showing a bottom seal portion.
FIG. 8 is an enlarged sectional view showing an open state of the slit.
FIG. 9 is a perspective view showing another example of the dispensing container.
FIG. 10 is a partial cross-sectional view showing another example of the dispensing container.
FIG. 11 is a partial cross-sectional view showing an example of another dispensing container.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Outlet container 2; Container main body 2a; Outer layer 2b; Inner layer 3; Body part 4; Mouth part 5; Male screw 6; Bottom part 7; Peripheral wall 8; Bottom plate wall 9; 12; base cup 13; cylinder wall 14; female screw 15; bottom wall 16; valve holding cylinder 17; projection 18; narrow pressure part 19; press wall 22; slit 23; second check valve 24; P: Parting line

Claims (7)

Blow-molded from a cylindrical parison, consisting of an outer layer and a flexible inner layer that is detachably laminated on the outer layer, and has a mouth tube portion that forms a spout of contents on the bottomed cylindrical shape, A container main body formed with a bottom seal portion which is a cut-out portion of the parison along the parting line on the lower bottom plate wall lower surface;
In a dispensing container provided with a base cup attached to the bottom of the container body and having an air circulation port opened,
The container body includes a male screw part on the bottom side surface,
When the base cup is screwed into the upper part of the inner surface of the cylindrical wall with the female screw part and the lower part is screwed into the bottom of the container body, the base plate wall is pressed from the side. A pouring container comprising a narrow pressure part for opening a slit in the outer layer of the biting part. 2. The dispensing container according to claim 1, wherein the narrow pressure portion is configured by at least a pair of protrusions that protrude from the inner surface of the cylindrical wall and have a smaller interval than the outer diameter of the bottom plate wall. The pouring container according to claim 1, wherein the bottom plate wall is formed in an ellipse or an oval having a major axis in the parting line direction, and an interval between the narrow pressure portions is shorter than the major axis. The pouring container according to claim 1 or 3, wherein the narrow pressure portion is formed in an ellipse or an oval shape having a longer major axis and a shorter minor axis than the outer diameter or major axis of the bottom plate wall. The dispensing container according to any one of claims 1 to 4, wherein the narrow pressure portion is erected from the bottom plate inside the cylinder wall at a predetermined interval from the cylinder wall. 6. The dispensing container according to any one of claims 1 to 5, wherein the narrow pressure part is formed in a tapered shape with a lower interval from the upper part. A first check valve that allows the container body to be squeezed and can be opened and closed in the container body mouth tube portion, and prevents the backflow of contents and the flow of outside air into the mouth tube portion; and the bottom portion of the container body And a base cup having a bottomed cylindrical bottom base plate with an air circulation port open and openable to the air circulation port to prevent outflow of outside air to the outside of the base cup. The dispensing container according to any one of claims 1 to 6, wherein a check valve is provided.

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