JPH0958750A - Method and device for discharging initial delamination air in delaminatable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save a step to inject air into a container during an initial delamination forming process by a method wherein a cylinder of a pump dispenser and a mouth of the container are sealed together with a sealing material, and a specified amount of delamination air is discharged from an expanded part when the cylinder is lowered. SOLUTION: A cylinder 21 of a pump B is provided with a lid 23 mounted on the upper end, a flange 24 attached around the outside circumference of the upper part, and a sealing part 25 that has a flange-like shape expanded outward and attached at the lower end. The sealing part 25 is brought in press-contact with an inside circumferential face 5a of a mouth of a container to ensure the airtightness between the mouth and the sealing part 25. When the pump B is pushed down with the container sealed, the sealing part 25 descends along the inside circumferential face of the mouth of the container, causing delamination air to be discharged from a space 8 of an expanded part 9 and the liquid level to drop until the sealing part 25 reaches a position corresponding to an outside air intake hole. When the sealing part 25 reaches the position corresponding to the outside air intake hole, it blocks the outside air intake hole to stop the discharge of the delamination air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for discharging initial delaminated air in a laminated peeling container equipped with a pump dispenser.

[0002]

2. Description of the Related Art It has been a common practice to attach a pump dispenser to a laminated peeling container in which an outer layer and an inner layer can be peeled from each other, and to use the pump dispenser. Then, as an initial delamination method for the laminated peeling container, air is forcibly fed between the inner layer and the outer layer through the air introduction hole formed in the outer layer of the container opening to completely peel both layers, and then The initial delamination method in which air is pressed in through the mouth of the container and the air previously sent through the air introduction hole is discharged, and the container treated by this method are conventionally known. (See, for example, JP-A-6-345069)

In addition, by improving the above-mentioned conventional technique, a flexible resin material is adopted for the inner layer, and air is introduced through an air introduction hole formed in the outer layer of the container mouth portion so that one of the outer layer and the inner layer is The initial delamination method in which the parts are peeled off, and then air is press-fitted from the container mouth to expel the delamination air introduced between the inner and outer layers, and the laminated delamination container treated by the method is proposed. Has been done.

[0004]

However, in all of the above prior arts, in the initial delamination step, the initial delamination air introduced between the inner and outer layers is discharged, and the peeled inner layer is returned to the original state. Therefore, it is necessary to provide a device for air press-fitting, which requires an air press-fitting process following the peeling process.

Generally, the filling ratio of the content liquid into the container is almost constant, so that when the capacity of the container becomes large,
The head space becomes relatively large, and the liquid surface sometimes drops to the lower end of the container shoulder or the upper end of the container body. Especially when installing a pump dispenser, the head space is set to be large in consideration of the volume of the content liquid removed by the pump member and troubles when mounting the pump. Has been encouraged. When the conventional container is filled with the content liquid and the pump dispenser is attached, the liquid level rises due to the insertion of the pump member, but in the case of a container with a large capacity, the liquid level does not drop to near the lower end of the container shoulder. I could not escape.

When the head space becomes large and the liquid level drops below the container mouth and near the lower end of the container shoulder,
When the container was transported, the liquid level fluctuated and the content liquid fluctuated, which caused bubbles and gas generation depending on the content liquid. Also, if the liquid level drops near the bottom of the shoulder of the container, even if it is filled with the specified amount of the displayed content liquid, if it is shaken even with an opaque container from the appearance of a transparent or translucent container. There is a problem in that the content liquid sways, giving the consumer an impression that the filling amount is insufficient and the amount is smaller than the display amount.

The present invention solves the above-mentioned problems, and in a laminated peeling container with a pump dispenser, after filling the content liquid, the inner layer peeled by the initial delamination is returned to the original state when the pump dispenser is attached. It is an object of the present invention to provide a method and a device therefor so as to bond to an outer layer and to adjust the volume of a head space to raise a liquid level of a content liquid to a desired position. And

[0008]

In order to achieve the above technical object, the present invention provides a method for discharging initial delamination air in a laminated peeling container, in which a predetermined amount of initial delamination air is blown in the initial delamination forming step to form an inner layer. When a pump dispenser is installed after filling the content liquid with a laminated release container in which a part of the pump is peeled to form a bulge, a seal member is used to seal between the pump dispenser cylinder and the container mouth, and the cylinder is lowered. When this is done, a predetermined amount of delamination air is discharged from the bulging part, and a method is adopted in which the initial delamination air amount is adjusted to set the amount of delamination air remaining in the bulging part. And adjust the volume of the head space of the container to which the pump dispenser is attached.

The seal member is provided on the cylinder side or the container mouth side. When the seal member is provided on the cylinder side, a collar-shaped seal portion is formed at the lower end of the cylinder to prevent the delamination air amount discharged from the bulging portion. It is set by the volume from the upper end of the mouth of the container to the predetermined position. When a seal member is provided on the container mouth side, an annular seal is formed on the inner plug that fits into the container mouth, and the amount of discharged delamination air is reduced from the cylinder seal part after the pump dispenser is attached. Set by the volume of the cylinder to the lower end.

When the pump dispenser is attached, the initial delamination air amount is discharged from the bulging portion so that the inner layer separated in the initial delamination forming step is returned to its original state and is joined to the outer layer. Set the same as the Deramie air amount of.

A pump dispenser comprising a cap, a cylinder having a piston member and a valve device installed therein, a suction pipe attached to a lower end thereof, and a piston operating member as a device for discharging a predetermined amount of delaminated air. In the above, a pump dispenser characterized in that a flange-shaped seal portion that is in pressure contact with the container opening portion of the laminated peeling container is provided at the lower end of the cylinder outer periphery, or a cap, a piston member and a valve device are installed inside A pump dispenser including a cylinder having a suction pipe attached to a lower end thereof, a piston operating member, an annular seal portion press-contacted to the outer circumference of the cylinder of the pump, and an inner plug capable of being fitted into the container mouth portion. The device for discharging initial delamination air in a laminated delamination container is adopted. As means for releasing the compressed air in the container, an annular seal portion characterized by forming a strip or a rough surface on the outer peripheral surface of the cylinder or the engagement surface of the seal portion is adopted, or the seal portion of the inner plug is adopted. The seal portion is characterized in that it is a flexible seal portion having a hook-shaped cross section that protrudes upward inward.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment according to the present invention will be described with reference to the drawings. In FIG. 1, A is a laminated inner bag peeling container having an outer layer 1 and an inner layer 2, and B is a pump dispenser (hereinafter sometimes simply referred to as a pump) attached to the laminated peeling container.

The outer layer 1 maintains the outer shape of the container, and is preferably made of high density polyethylene resin. The inner layer 2 is an inner bag that is peelable and deformable from the outer layer, and is made of a flexible resin such as nylon or EVOH. Needless to say, the material for the inner and outer layers of the container is not limited to the resin of the example, as long as it is a resin material having the above functions. Reference numeral 3 denotes a container body portion, 4 denotes a container shoulder portion, 5 denotes a container mouth portion, and the container is molded by laminated extrusion blow molding. Reference numeral 6 is an air introduction hole formed in the outer layer 1 of the container mouth portion 5 to introduce air between the outer layer 1 and the inner layer 2 and to promote the peeling of the inner layer while maintaining the external shape of the blow container. Has a function and effect that the content liquid is completely poured out.

Numeral 7 is an engaging piece for preventing the inner layer from falling, which is formed by a mandrel of a blowing device at the time of blow molding. The outer layer 1 and the inner layer 2 are partially bonded by an adhesive band or the like. It may be omitted if you do. Reference numeral 8 denotes a void formed between the outer layer and the inner layer separated by blowing delamination air during the initial delamination. 9
Is the inner layer 2 peeled off by blowing delamination air
It is a bulge of a.

The initial delamination formation will now be described. In FIG. 2, 10 is a delamination air blowing member,
A through hole 11 is bored inside and a nozzle 12 is formed at the tip. The end face of the nozzle 12 is provided with an opening 11a and an opening 11b communicating with the side portion of the nozzle so that air is blown downward from the opening 11b.

In forming the initial delamination, the nozzle 12 of the delamination air blowing member is inserted into the atmosphere introduction hole 6 at the container mouth, and when a certain amount of delamination air is blown, the inner layer around the introduction hole at the container mouth is first formed. Peel off, then container shoulder 4,
Peeling progresses from the upper part of the container body 3, and the inner layer 2a in the portion surrounded by the line 2b shown in FIG. 3 is peeled from the outer layer 1 to form the bulging portion 9. The delamination air blowing member is connected to an air supply device including a delamination air amount adjuster,
The delamination air amount is easily adjusted within a certain range by the adjuster.

In the above embodiment, the air introduction hole 6 is formed in the outer layer 1 of the container mouth 5. As a result, when the pump is attached to the container, the air introduction hole is covered with the cap. However, even if the air introduction hole 6 is provided at the upper end of the container shoulder, or at an appropriate place on the shoulder or body. Good. To form the initial delamination, as in the above-described embodiment, a predetermined amount of the initial delamination air is blown from the atmosphere introducing hole 6 by the delamination air blowing member, and the inner layer 2 at a certain portion around the introduction hole is formed.
A is peeled from the outer layer 1 to form the bulging portion 9.

Conventionally, after the inner layer 2a is peeled from the outer layer 1, air is press-fitted from the mouth of the container to discharge delamination air, and the peeled inner layer 2a is put into the original state as shown in 2c of FIG. However, in the present invention, the bulging portion 9 formed by the peeled inner layer 2a is maintained as it is.

When this container is filled with a predetermined amount of content liquid,
The head space is reduced according to the size of the bulging portion 9, and the liquid level Lb corresponds to the volume removed by the bulging portion 9 compared to the liquid surface La when the bulging portion 9 is not formed. As much as you do, you rise The fluid pressure in the bulging portion 9 is extremely small, and even the flexible inner layer has a certain degree of shape retention. The shape is almost maintained.

The pump dispenser B is attached to the container filled with the content liquid as described above. First, the pump B will be described with reference to FIGS. 1 and 4. Pump B
Is composed of a cap 20, a cylinder 21 in which a piston and a valve device are mounted, and a piston operation member 22. A lid 23 having a through hole for inserting a piston rod is fitted on the upper end of the cylinder 21, and a mounting flange 24 is provided on the outer periphery of the upper portion. Cylinder 21
A flange-shaped seal portion 25 which bulges outward is provided at the lower end of the seal portion 25. The seal portion 25 is in pressure contact with the inner peripheral surface 5a of the container mouth portion when the pump B is attached, and the seal portion 25 is connected to the container mouth portion. It is formed to keep airtightness. In the figure, 26 is a valve seat cylinder, 2
Reference numeral 7 is a suction pipe, 28 is a discharge pipe for the content liquid, and 30 is a packing.

The internal structure of the pump B is the same as that of the conventional one, and therefore will not be described in detail with reference to the drawings. However, the piston is operated by the pressing operation of the operating member 22 and the restoring force of the compression spring mounted in the cylinder. It is configured to be moved up and down and to discharge a fixed amount of content liquid according to the operation of the operation member 22. Then, when the operating member 22 is rotated at the lowered position and screwed to the lid 23, the piston is held at the most lowered position and the valve member provided at the bottom of the cylinder is fixed at the closed position.
The flow of the liquid between the suction pipe 27 and the cylinder 21 is prevented when the pump B is attached or not used. The pump B is mounted by fitting the cap 20 onto the container mouth portion 5 via the cylinder mounting collar 24 and the packing 30 as in the usual case.

Next, the action of the seal portion 25 and the fluctuation of the liquid level when the pump B is attached will be described with reference to FIG. FIG. 4A shows a state in which a pump member such as the suction pipe 27 is inserted into the container, and the seal portion 25 of the cylinder 21 is brought into pressure contact with the inner peripheral upper end 5b of the container mouth portion to seal the container. (B) shows the state when the pump B is completely attached.

When the sealed state shown in FIG. 3 (a) is reached, the head space is reduced by the volume of the pump member inserted into the container as compared with the state before mounting, and the liquid level L1 is inserted into the liquid. Moreover, the liquid level Lb before mounting is slightly raised by an amount corresponding to the volume of the suction pipe.

Next, when the pump is pushed down from the state in which the container is hermetically sealed as shown in FIG. 5A, the seal portion 25 descends along the inner peripheral surface 5a of the container mouth portion, and the position corresponding to the atmosphere introduction hole 6 is reached. The delamination air existing in the voids 8 of the bulging portion 9 is discharged and the liquid level is lowered until the temperature reaches. When the seal portion 25 reaches the position corresponding to the atmosphere introducing hole 6, the atmosphere introducing hole 6 is blocked via the inner layer 2, and the discharge of the delamination air is stopped. Next, until the seal portion 25 reaches the inner peripheral lower end 5c of the container mouth, the delaminated air is not discharged, but the air in the container is only compressed. When the seal portion 25 moves downward from the lower end 5c, the container is unsealed, and the compressed air flows out between the cylinder 21 and the container mouth 5.

When the air introduction hole 6 is formed in a portion other than the container mouth portion, the seal portion 2 is pushed in response to the depression of the pump.
The delaminated air existing in the void 8 of the bulging portion 9 is discharged until 5 reaches the lower end 5c of the container opening, and when the seal portion 25 moves downward from the lower end 5c, the container is unsealed, and the delaminated air Ejection is stopped.

When the pump B is further pushed down from the position where the seal portion 25 reaches the lower end 5c of the container mouth, the liquid level rises by the amount corresponding to the volume of the cylinder inserted into the liquid, and the cap is closed. When 20 is fitted in the container mouth, the liquid level becomes L2. After the pump is attached, the container is tightly sealed and the delamination air is not discharged, and the headspace and liquid level are kept constant and do not fluctuate.

Next, the relationship between the head space and the delamination air amount will be described, and the operation of the above embodiment will be described. First, the delamination air amount will be explained. Now, the initial delamination air amount is Qa and the discharged delamination air amount is Qa.
If the amount of delamination air remaining in the gap 8 of the bulging portion 9 is Qc, the initial amount of delamination air Qa can be set and adjusted by the delamination air amount adjuster provided in the air supply device of the blowing member.

The discharged delamination air amount Qb is obtained from the shape and size of the container. Now, the air in the hermetically sealed container is compressed in response to the depression of the cylinder, but when the air introduction hole is not blocked, the air in the container is communicated with the atmospheric pressure via the inner layer 2a. Therefore, it is assumed that the compressed amount of air is almost negligible, the radius of the inner circumference 5a of the container mouth is r, the height from the upper end 5b of the inner circumference of the container mouth to the air introduction hole 6 is h, and it swells when the pump is attached. Assuming that the amount of air discharged from the void 8 of the portion 9 is Qb, then Qb = πr ² h.

In the case where the atmosphere introducing hole is formed in a portion other than the container mouth portion, if the radius of the container mouth portion inner circumference 5a is r and the height from the upper end 5b to the lower end 5c of the container mouth portion inner circumference 5a is ha, Qb = πr ² ha. Where r, h, h
Since a is a prescribed numerical value determined by the design of the container, the discharge amount Qb is a constant value.

Delamination air amount Q remaining in the void 8 of the bulging portion
c is calculated as Qc = Qa−Qb, but since Qb is a constant value, the remaining delamination air amount Qc can be arbitrarily set by adjusting the initial delamination air amount Qa.

Next, the head space will be described. It is possible to quantitatively analyze fluctuations in the head space and liquid level during mounting, but it becomes complicated and detailed analysis is not necessary. Therefore, the head space after mounting is more effective than that of the conventional container. Make the effect clear.

The volume of the head space after mounting the pump is
The volume of the filled content liquid and the volume of the pump member (suction pipe, cylinder, etc.) inserted into the container are subtracted from the volume of the container.

Assuming that the volume of the head space of a conventional container having no bulging portion, that is, the container in which the inner layer is returned to the original state is V0, the volume of the container and the volume of the content liquid are known, and the pump Since the volume of the member is a value determined from its shape and size, V0 is a constant value.

Assuming that the volume of the head space of the container in which the bulging portion is formed is V, the volume of the content liquid and the volume of the pump member inserted in the container are the same as those of the conventional one, and therefore the volume of the head space is The presence of the bulging portion reduces the amount of delamination air present in the void. Therefore, V = V0-Qc = V0- (Qa
-Qb). In the above formula, V0
Is a constant value, and Qb is also a constant value. Therefore, the head space V can be obtained as a value that changes according to the initial delamination air amount Qa.

Here, the fact that the value of the head space V becomes negative means that the content liquid overflows from the container mouth, and it goes without saying that Qa must be set so that V> 0. . If Qa <Qb is set, the delamination amount discharged during the lowering of the cylinder is Qa.
The air is only compressed until the flange-shaped seal portion 25 reaches the lower end 5c of the inner peripheral surface of the container mouth from the point of time when it becomes equal to, but since the content liquid is incompressible, the head space at the time of inserting the pump. It is necessary that the volume of is larger than a value obtained by subtracting the initial delamination amount Qa from the volume of the container opening.

Next, the function and effect of this embodiment will be described. Since the initial delamination air amount Qa is set and adjustable by the delamination air amount adjuster, the volume V of the head space when the pump is attached by adjusting Qa, and hence the height of the liquid surface is desired. Can be easily adjusted to the position.

When the initial delamination air amount Qa is made equal to the exhaust air amount Qb, the delamination air in the gap 8a is completely discharged, the peeling portion 2a of the inner layer is restored to the original state, and the peeled inner layer 2a is removed. Can be joined to the outer layer 1. Therefore, according to the present invention, in the initial delamination forming step, after introducing the delamination air, even if the air is not pressure-injected from the container mouth, if the initial delamination air amount is set to a predetermined value, the pump can be attached when the pump is attached. The inner layer can be restored to its original state.

When the initial delamination air amount Qa is increased,
The amount of air Qc remaining in the bulging portion becomes large, and the inner layer 2a
The head space decreases and the liquid level rises as compared to when the is restored to the original state. Now, when the volume V of the head space is set to a value obtained by subtracting the volume of the cylinder of the pump existing in the mouth from the volume of the container mouth, or the initial delamination air amount Qa is set to be smaller than that,
It is also easy to position the liquid surface in the mouth.

Therefore, even if the volume of the container is large and the head space is large so that the liquid level is lowered to near the lower end of the container shoulder, the liquid level can be raised to the container mouth. It is easy to do, and the shaking of the liquid surface and the shaking of the contents during transportation of the container can be reduced, and foaming and gas generation can be prevented.

Next, a second embodiment of the present invention will be described with reference to FIG. The present embodiment is different from the first embodiment in that the seal member is formed on the inner plug C fitted to the container mouth, instead of providing the seal portion 25 on the lower end of the cylinder outer periphery of the pump. The inner plug C is made of a synthetic resin and has a cylindrical portion 32 having a flange 31 at the upper end.
And an annular seal portion 33 provided at the lower end of the cylindrical portion 32 and protruding inward. The engagement surface 34 on the inner circumference of the annular seal portion 33 is in pressure contact with the outer circumference of the cylinder 21 and acts to seal the container when the pump is attached.

When installing the pump B, first, the inner plug C
Is fitted into the mouth of the container, and then the cylinder 21 of the pump B is inserted into the inside plug C. When the lower end of the cylinder 21 is engaged with the annular seal portion 33, the inside of the container is sealed, and when the pump B is further pushed down, the delamination from the void 8 of the bulging portion 9 is performed according to the volume of the cylinder 21 inserted from the seal portion 33. Air is exhausted.

Since the inside of the container is in a sealed state, the liquid level drops as the pump B descends, and the liquid level changes from L1 to L2. However, when the cylinder reaches the liquid level, the volume of the cylinder inserted into the liquid is The amount of air discharged from the bulging portion is replaced and the liquid surface does not change. After pushing down the cylinder to the lowest position, the cap 20 is fitted on the container mouth and the pump is attached to the container. After the pump is attached, the container is tightly sealed and the delamination air is not discharged, and the headspace and liquid level are kept constant and do not fluctuate.

Next, the relationship between the head space after the pump is attached and the delamination air amount will be described. Similar to the first embodiment, the initial delamination air amount is Qa, the discharged delamination air amount is Qb, the delamination air amount remaining in the voids 8 of the bulging portion is Qc, and the head of the conventional container having no bulging portion is used. Assuming that the volume of the space is V0 and the volume of the head space of the container having the bulging portion is V (note that the head space is inside the container below the inner plug seal portion unlike the first embodiment). ) The delamination air amount Qb to be discharged is, when the length from the annular seal portion to the lower end of the cylinder when the pump is attached to the container is l, the radius of the cylinder is rc, and the compression of the air in the container is ignored, The amount of delamination air Qb discharged is Qb = π
It becomes rc ² l. The discharge amount Qb is obtained from the dimensions of the pump member and is a constant value.

The volume V of the head space is V = V0-Qc = V0- (Qa-Qb) as in the first embodiment.
Is required. Here, V0 is a constant value, and Qb
Is also a constant value, the head space V can be obtained as a value that changes according to Qa. Therefore, also in the second embodiment, the same operational effect as that of the first embodiment is brought about by adjusting the initial delamination air amount Qa.

Further, in the second embodiment, the head space is smaller than that of the first embodiment by fitting the inner plug. When mounting the pump, when the pump is lowered, the liquid level drops until the lower end of the cylinder engages with the annular seal and reaches the liquid level as described above, but thereafter the liquid level does not change. . When the content liquid is filled near the seal part of the inner stopper, the liquid level rises slightly due to the insertion of a suction pipe, etc., but the movement of the liquid level after that is slight, so the liquid level of The effect is that the height can be predicted in advance.

Next, in the second embodiment, Qa <Q
In the case of setting b, in that case, the liquid level rises according to the lowering of the cylinder from the time Qa = Qb, and the air in the container is compressed. In the first embodiment, the sealed state is released when the seal portion is lowered from the lower end 5c of the mouth portion, and compressed air flows out without causing any problem. However, in the second embodiment, the sealed state is obtained. Is maintained until the end, the air in the container is compressed and the pressure in the container rises.

In order to avoid this problem, it is a matter of course that Qa must be adjusted so that the bed space does not become negative, and it is necessary to provide a means for letting out compressed air. As an embodiment for that purpose, a modified pump cylinder and inner plug C will be described below.

[0048]

EXAMPLE As a first modified example, an outer peripheral surface of a cylinder,
Alternatively, an embodiment in which a strip or a rough surface is formed on the engagement surface of the inner plug will be described with reference to FIG. FIG. 6 (a) shows a cylinder having a strip formed on its outer peripheral surface.
(D) shows that the engagement surface of the inner plug is formed with a strip or a rough surface. In the pump dispenser, as shown in FIG. 1C, one in which a fine strip 21a through which air circulates is engraved on the outer peripheral surface of a cylinder 21 is conventionally known so as to pour out the content liquid to the end.

However, in the prior art, the height of the strip from the lower end of the cylinder did not reach the sealing portion of the inner plug, as can be seen from FIGS. Therefore, in this embodiment, as shown in FIG. 2B, the strip 21 is formed on the outer peripheral surface of the cylinder 21 from the lower end to at least the seal portion.
a is engraved. Since the engagement surface of the annular seal of the inner plug is in pressure contact with the outer periphery of the strip, air flows between the cylinder and the seal portion, but the content liquid is viscous and is blocked. Therefore, when Qa ≦ Qb and the air in the container is compressed, the compressed air flows out through the strip 21a and the pressure in the container does not rise. In the above-described embodiment, the outer peripheral surface of the cylinder is provided with the fine line, but the surface may be changed to the fine line and the surface may be blasted to form a rough surface.

Although the cylinder is provided with the strips in the above embodiment, the engagement surface of the inner plug C may be provided with the strips or the rough surface 34a, as shown in FIG. In this case, there is an advantage that the conventional cylinder can be used as it is regardless of the presence or absence of the strip.

Next, a second modified embodiment in which the structure of the inner plug C is modified will be described with reference to the drawings. In FIG. 6C, 31 is a flange and 32 is a cylindrical portion. As a seal portion that engages with the cylinder, a flexible seal portion 35 having a hook-shaped cross section that protrudes upward inward is provided at the lower end of the cylindrical portion 32. The inner plug C is formed of a soft synthetic resin, and the flexible seal portion 35 is elastically deformed when the pressure inside the container rises, the seal portion 35a at the tip is expanded, and the flexible seal portion 35 is formed between the flexible seal portion 35 and the cylinder outer peripheral surface. A gap is formed. Therefore, compressed air and content liquid can flow out through the gap, and Qa
When ≦ Qb and the air in the container is compressed, the compressed air comes out of the gap.

In the above two embodiments, the case where Qa <Qb is set has been described, but when Qa ≧ Qb,
It goes without saying that the operational effects described in the embodiment of the present invention are brought about. In particular, in the second modified example, since the seal portion projects inward and upward, the volume of the head space at the time of filling the content liquid is set equal to the volume of the valve seat abutment cylinder and the suction pipe. In this case, when the pump is inserted, the liquid level rises up to the seal part and the liquid level does not change thereafter, so it is easy to completely fill the content liquid inside the inner plug C as shown in FIG. 7 (d). The special effect of being able to do is brought. In this case, even if the liquid level rises above the seal portion, it escapes from the gap, so long as it is a small amount, there is no problem.

In the above-mentioned two embodiments, the pump of the type generally used as the pump dispenser is shown, but the pump is not limited to the pump described in the embodiment, and the cylinder member of the pump is inserted into the container, The pump dispenser of the present invention includes any device that sucks up and discharges a certain amount of content liquid by operating the operation member.

[0054]

Since the present invention is configured as described above, it has the following effects. At the time of attaching the pump dispenser, since the initial delamination air held in the void of the bulging portion was discharged, in the initial delamination forming process,
The process of pressurizing air into the container can be omitted, and the manufacturing process of the container is simplified.

By adjusting the initial delamination air amount, it is possible to set the delamination air amount remaining in the voids of the bulging portion. Therefore, by adjusting the initial delamination air amount, the head space volume can be adjusted.

When the initial delamination air amount is adjusted to be equal to the exhaust delamination air amount, the delamination air amount remaining in the void of the bulging portion becomes 0, and the inner layer forming the bulging portion is in the original state. And could be bonded to the outer layer.
Therefore, it was possible to eliminate the need for returning the inner layer to the original state in the initial delamination step.

By adjusting the initial delamination air amount, the volume of the head space can be easily adjusted to a predetermined value, which makes it easy to raise the liquid surface to a desired height. . Furthermore, it has become possible to completely fill the sealing portion of the inner stopper with the content liquid.

When the liquid level is raised to the inside of the container mouth, it is possible to reduce the fluctuation of the liquid level during transportation, the fluctuation of the content liquid, etc., and to prevent foaming and gas generation. became. Further, even when the consumer holds the container, the liquid content does not sway, which gives a sense of fulfillment and enhances the commercial value.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a laminated peeling container with a pump dispenser according to the present invention.

2A and 2B are explanatory views of initial delamination formation, FIG. 2A is a partial cross-sectional front view of a laminated peeling container, and FIG. 2B is an explanatory view of a blowing member.

FIG. 3 is a drawing of the delamination container shown in FIG.
(A) is a plan view and (b) is a side view.

4A and 4B are explanatory views when the pump is mounted in the first embodiment, FIG. 4A is a drawing when sealing is started, and FIG. 4B is a drawing when pump mounting is completed.

5A and 5B are explanatory views when a pump is installed in the second embodiment, where FIG. 5A is a drawing showing the start of sealing, FIG. 5B is a drawing showing the completion of pump installation, and FIG. 5C is a front view of the inner plug. is there.

6A and 6B are drawings showing a modified example of the second embodiment, in which FIG. 6A is a drawing at the start of sealing, FIG. 6B is a drawing at the time of completion of pump attachment, and FIG. 6C is a sectional view of a conventional pump. ,
(D) is a front view of the inside plug.

7A and 7B are drawings showing another modified example of the second embodiment, in which FIG. 7A is a drawing when sealing is started, FIG. 7B is a drawing when pump mounting is completed, and FIG. FIG. 1D is an explanatory diagram when the content liquid is filled.

[Explanation of symbols]

 A laminated peeling container B pump dispenser C inner plug 1 outer layer 2 inner layer 3 container body 4 container shoulder 5 container mouth 6 atmosphere introduction hole 8 void 9 bulge 10 blowing member 20 cap 21 cylinder 21a thin strip 22 Operation member 23 Lid body 25 Collar-shaped seal portion 31 Flange 32 Cylindrical portion 33 Annular seal portion 35 Flexible seal portion

Claims (10)

[Claims] 1. A laminated peeling container in which a predetermined amount of initial delamination air is blown to separate a part of an inner layer from an outer layer to form a bulging portion, when a pump dispenser is attached after filling a content liquid, the pump dispenser. The initial delamination air in the delamination container is characterized in that a predetermined amount of delamination air is discharged from the bulging portion when the cylinder is lowered by sealing the space between the cylinder and the container mouth with a sealing member. How to discharge. 2. The amount of delamination air remaining in the bulging portion is set by adjusting the amount of initial delamination air, and the volume of the head space of the container to which the pump dispenser is attached is adjusted. The method for discharging initial delamination air according to claim 1. 3. A seal member is formed on the outer circumference of the cylinder, and the amount of delamination air discharged from the bulging portion is set by the volume from the upper end of the mouth to the predetermined position in the mouth of the container. The initial delamination air discharge method described. 4. A seal member is formed on an inner plug fitted into a container mouth, and the amount of delamination air discharged from a bulging portion of the cylinder is measured from the seal portion of the cylinder to the lowermost end after the pump dispenser is attached. The method for discharging initial delamination air according to claim 1, wherein the method is set by the volume. 5. The initial delamination air amount is set equal to a predetermined delamination air amount discharged from the bulging portion, and the peeled inner layer is returned to its original state and bonded to the outer layer. The method for discharging initial delamination air according to claim 1, wherein the initial delamination air is discharged. 6. A pump dispenser having a cap and a cylinder in which a piston member and a valve device are mounted, wherein a collar-shaped seal portion is provided on the outer circumference of the cylinder and is in pressure contact with the inner peripheral surface of the container mouth of the laminated peeling container. Characteristic pump dispenser. 7. A pump dispenser having a cap and a cylinder in which a piston member and a valve device are mounted,
An initial delamination air discharging device for a laminated peeling container, comprising: an annular seal part that is brought into pressure contact with an outer circumference of a cylinder of the pump; and an inner plug that can be fitted into a container mouth part. 8. The initial delamination air discharging device according to claim 7, wherein a strip or a rough surface is formed on the outer peripheral surface of the cylinder from the lower end of the cylinder to the upper portion of the seal portion after the pump dispenser is attached. 9. The initial delamination air discharging device according to claim 7, wherein the engagement surface of the annular seal portion of the inner plug is formed with a strip or a rough surface. 10. A flexible seal portion having a hook-shaped cross-section protruding upward inward from the seal portion of the inner plug.
Initial delamination air exhaust device as described.