JP2000016459A - Squeeze container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a squeeze container wherein an appearance of a squeezed container can be smoothly recovered and also all contents can be discharged surely to the end. SOLUTION: The squeeze container comprises an adhesive strip 28 where an external layer 21 and an internal layer 22 are not separated which extends in a container height direction on a part of a peripheral direction of the container, wherein the internal layer 22 separated from the external layer 22 can form a passage of contents between the internal layer 22 and the adhesive strip 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a squeeze container.

[0002]

2. Description of the Related Art Conventionally, as a delamination container, Japanese Patent Application Laid-Open
As described in No. 5566, while configuring the container body with an outer layer and an inner layer releasably laminated to the outer layer,
Some include an air introduction hole in an outer layer.

[0003] However, in this container, if the inner layers at the top of the container come into close contact with each other in the course of use, the passage through which the content passes will be blocked, making it difficult to discharge the content.

Japanese Patent Application Laid-Open No. 6-100057 discloses a laminated peeling container in which an inner container and an outer container are joined by an adhesive from an intermediate point on a side portion to a shoulder portion in the entire circumferential direction of the container. Have been. However, the inner container and the outer container are not bonded from the midpoint of the side portion to the bottom. Therefore, when the inner layers near the middle of the container are in close contact with each other in the use process, the passage through which the contents pass is blocked, and it becomes difficult to discharge.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a squeeze container capable of smoothly restoring the external shape of a squeezed container while reliably discharging the entire contents to the end.

[0006]

According to the first aspect of the present invention, an outer layer having an air inlet and an inner layer constitute a container body, and air is introduced between the outer layer and the inner layer. In a squeeze container, an adhesive band in which the outer layer and the inner layer do not separate is extended in the container height direction at a part of the container circumferential direction, and the inner layer separated from the outer layer is between the adhesive layer and the squeeze container. A passage for the contents can be formed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) (FIGS. 1 to 4) A squeeze container 10 is an assembly of a container body 11, an inner stopper 12, a cap 13, and a valve 14.

[0008] As shown in FIGS. 1 and 2,
It comprises an outer layer 21 and an inner layer 22 which is laminated on the outer layer 21 in a separable manner. The container body 11 includes an outer layer 21
And the laminated parison 23 (FIG. 3) of the inner layer 22 is manufactured by blow molding. The outer layer 21 is deformed by the squeeze and is restored when the squeeze is released, so that the outer shape of the container body 11 is maintained. The inner layer 22 is an inner bag that is separable and deformable from the outer layer 21.

The container body 11 has a valve body 1
A threaded portion 25 for screwing the cap cylinder 41 holding the inner plug 4 and the inner plug 12, and a fitting shoulder 26 to which the inner peripheral portion of the lower end of the cap cylinder 41 of the cap 13 is in close contact are provided. The container main body 11 is provided with an air introduction hole 27 in the outer layer 21 of the mouth portion 24, and when the outer layer 21 is restored, air is introduced between the outer layer 21 and the inner layer 22 to maintain the external shape of the container main body 11. At the same time, the separation of the inner layer 22 can be advanced.

The inner plug 12 can be fitted into the opening of the mouth 24 of the container body 11, has a discharge passage 31 communicating with the inside of the container body 11, and has an outer peripheral surface of the mouth 24 and the mouth. An intake path 32 is provided which communicates with the air introduction hole 27 via an air inflow path 45 described later between the cap 13 and the inner peripheral surface of the cap cylinder 41 screwed to the cap 24.

The cap 13 is connected to the mouth 24 of the container body 11.
And a top lid 42 hinged to the cap cylinder 41. The cap cylinder 41 has a discharge port 44 which can be sealed by a seal 43 of the upper lid 42, and the opening 24 of the container main body 11.
While holding the inner plug 12 and the valve body 14 with the mouth portion 24 of the container body 11 while being screwed to the container body 11,
The inner peripheral portion of the lower end is brought into close contact with the fitting shoulder portion 26 of the mouth portion 24 to form an air inflow passage 45 with the outer peripheral surface of the mouth portion 24. The cap cylinder 41 has a suction port 46 that can be sealed by the suction valve 52 of the valve body 14.

The valve body 14 is held by the cap cylinder 41 of the cap 13 in a state of being fitted to the inner plug 12,
A discharge valve (check valve) 51 that opens the discharge passage 31 only in the content discharge direction to allow the content to be discharged from the discharge port 44, and opens the suction port 46 of the cap 13 only in the air introduction direction. A suction valve (check valve) 52 that allows air to be introduced between the outer layer 21 and the inner layer 22 from the suction path 32, the air inflow path 45, and the air introduction hole 27 is provided.

However, in the squeeze container 10, the following configuration is adopted to ensure that the entire contents can be discharged to the end while the external shape of the squeezed container body 11 can be smoothly restored. I have.

The two adhesive strips 28 in which the outer layer 21 and the inner layer 22 of the container body 11 are not separated are placed at two positions in the container circumferential direction,
In this embodiment, the container body 11 extends from the bottom in the container height direction to the mouth 24 at each of two diametrical positions (two symmetrical positions) in the container body 11. The air introduction holes 27 described above are provided in the outer layer 21 corresponding to each of the separation zones 29. The adhesive band 28 is constituted by an adhesive layer 28A provided between the outer layer 21 and the inner layer 22 over the entire height range of the container body 11 over the entire length of the extrusion when the above-described laminated parison 23 is extruded. Is done.

The inner layer 22 separated from the outer layer 21 of the container body 11 enables a passage (liquid passage) 30 for the contents to be formed between the inner layer 22 and the adhesive band 28. Passage 30
It is formed by the following (A) and / or (B).

(A) By setting the width of the adhesive band 28 along the circumferential direction of the container, a certain curvature is secured at the base 22A of the inner layer 22 separated from the outer layer 21 near the side of the adhesive band 28. The passage 30 is surrounded and formed by the base portion 22A.

(B) The sum of the lengths of the separation bands <[(2 × the distance between the opposing adhesion bands 28, 28) + the sum of the lengths of the respective adhesion bands]. According to this, the inner layers 22 of the opposing separators 29 always form a constant passage 30 (gap) between them even at their closest.

The container body 11 has an air introduction hole 27.
By forming at least one of the inner peripheral surface of the outer layer 21 provided with the inner layer 22 and the outer peripheral surface of the inner layer 22 opposed to the air introduction hole 27 in advance, the outer layer 21 is formed.
The air introduction hole 2 is formed in the inner peripheral surface of
If an air introduction gap 31 (not shown) for communicating with the inner layer 7 is provided, air can be reliably introduced from the air introduction hole 27 to between the outer layer 21 and the inner layer 22.

At this time, in the present invention, when the container is a laminated peeling container, for example, when the material of the outer layer 21 is made of high-density polyethylene, low-density polyethylene, polypropylene, or the like, the material of the inner layer 22 is nylon or Eval. , PET, etc. are used. When nylon, Evar, PET, or the like is used as the material of the outer layer 21, high-density polyethylene, low-density polyethylene, polypropylene, or the like is used as the material of the inner layer 22. As the resin of the adhesive layer, an adhesive polyolefin (trade name: ADMER, etc.) capable of adhering the outer layer 21 and the inner layer 22 is used. Also, the container body may be separately molded and combined into an outer container and an inner container.For example, the outer container is blow-molded using polyethylene, polypropylene, or the like, and the inner container is formed of a film of polyethylene, polypropylene, or the like, The adhesive band can be made by heat welding or an adhesive.

Therefore, according to the present embodiment, there are the following operations (FIG. 4). In the container height direction of the squeeze container 10, the inner layer 22 separated from the outer layer 21 forms a passage 30 for the contents between them and the adhesive band 28. For this reason, in the process of squeezing the container main body 11 to discharge the contents, and shrinking and deforming the inner layer 22, the opposing inner layer 22 is first placed on the upper side in the container height direction and on the upper side. The contents can be reliably circulated from the lower side to the upper side discharge port 44 through the above-mentioned passage 30 without being in close contact with the whole area of the cross section.

Since the adhesive band 28 between the outer layer 21 and the inner layer 22 is provided at a part in the circumferential direction of the container, when the outer layer 21 is restored after discharging the contents by squeezing the container body 11, the inner layer is 22 can be separated from the outer layer 21 without fail in the entire region in the height direction of the container, and does not hinder the resilience of the outer layer 21. Therefore, in combination with the above, all the contents can be reliably discharged to the end while the appearance of the squeezed container 10 can be smoothly restored.

Two adhesive strips 28 for the outer layer 21 and the inner layer 22 are provided, and the air inlets 27 are adjacent to each other.
By being provided corresponding to each of the separation bands 29 sandwiched between the inner layers 22, the opposing inner layers 22 are both separated from the outer layers 21 and contracted and deformed in a line-symmetrical manner.
A passage 30 for the contents can be formed stably between the adhesive band 28 and the adhesive band 28.

An air introducing gap 31 (not shown) is previously provided between the outer layer 21 and the inner layer 22 to which the air introducing holes 27 communicate.
Was formed. Therefore, air is reliably and simultaneously introduced into the separation zones 29 from the air introduction holes 27 corresponding to the two separation zones 29, and the opposing inner layer 22 is reliably separated from the outer layer 21 together. As a result, it is possible to stably and reliably shrink and deform in a line-symmetrical manner.

(Second Embodiment) (FIG. 5) The difference between the squeeze container 10A of the second embodiment and the laminating and peeling container 10 of the first embodiment is that the squeeze container 10A is provided with one of the separation bands 29 sandwiched between the adjacent adhesive bands 28. Only for the corresponding outer layer 21,
That is, the above-described atmosphere introduction hole 27 is provided. In the squeeze container 10A, when the contents are discharged by squeezing of the container body 11, only the inner layer 22 of the opposing inner layers 22, 22 on the side of the separation band 29 where the air introduction hole 27 is provided. Is separated from the outer layer 21,
The separated inner layer 22 has a base 2 with the adhesive band 28 on both sides.
It reverses from 2A and contracts and deforms in a U-shape (FIG. 5). Even in the squeeze container 10A, a fixed curvature is provided at the base 22A of the inner layer 22 separated from the outer layer 21 by the side of the adhesive band 28 by setting the width of the adhesive band 28 along the container circumferential direction. By securing, for example, the base portion 22A surrounds and forms the passage 30 so that the external shape of the squeezed container 10A can be smoothly restored.
All the contents can be reliably discharged to the end.

In the embodiment of the present invention, in the container main body 11, the separation layer 2 in which the outer layer 21 and the inner layer 22 are separated from each other.
9 can be smaller than the container half-circumferential length. That is, even when only one wide adhesive band 28 is provided in the circumferential direction of the container, the opposing inner layers 22 are provided on the upper side of the lower side in the height direction of the container and in the entire area of the cross section. Adherence can be avoided.

In the practice of the present invention, the adhesive strip 2
8 may be provided three or more. Furthermore, at this time, those 3
The air introduction holes 27 may be provided corresponding to each of the separation bands 29 sandwiched between the adjacent bonding bands 28 among the bonding bands 28 of the book or more.

In the embodiment of the present invention, the adhesive band 2
8 is formed over the entire area of the squeeze container 10 in the container height direction, but may be not only a continuous adhesive band but also a discontinuous adhesive band.

Further, the squeeze container according to any one of claims 1 to 4 provided with the agent application tool is provided, for example, such that the inside of the handle of the application tool such as a comb, a brush or a brush communicates with the discharge port of the squeeze container. The contents pass through the inside of the handle of the application tool from the squeeze container, and can be applied by discharging and holding the contents between the comb teeth or between the comb teeth.

[0029]

As described above, according to the present invention, in a squeeze container, all the contents can be discharged to the end while the appearance of the squeezed container can be smoothly restored.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a container main body of a squeeze container according to a first embodiment.

FIG. 2 is a schematic diagram showing the squeeze container corresponding to the view along the line II-II in FIG.

FIG. 3 is a schematic diagram showing a laminated parison.

FIG. 4 is a schematic view showing a process of discharging an internal solution according to the first embodiment.

FIG. 5 is a schematic view showing a process of discharging a content liquid according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Squeeze container 11 Container main body 21 Outer layer 22 Inner layer 27 Air introduction hole 28 Adhesion band 28A Adhesion layer 29 Separation band 30 Passage 31 Air introduction gap 52 Suction valve

Continued on the front page (72) Inventor Waka Nobemoto 2-1-3 Bunka, Sumida-ku, Tokyo F-term in Kao Corporation Research Laboratory F-term (reference) 3E014 EA02 3E067 AA03 AA04 BA03B BA03C BB14B BB14C BB15B BB15C BB16B BB16C BC03B BC03C BC07B BC07C EA32 EB27 EE56 EE59 FA04 FC01 GC10

Claims (5)

[Claims] 1. A squeeze container in which an outer layer and an inner layer having an air introduction hole constitute a container body, and air is introduced between the outer layer and the inner layer, wherein the outer layer and the inner layer are separated. The adhesive band that does not extend in the container height direction at a part of the container circumferential direction, and the inner layer separated from the outer layer can form a passage for the content between the adhesive layer and the inner layer. Squeeze container. 2. The squeeze container according to claim 1, wherein the length of each of the separation zones separating the outer layer and the inner layer in the container circumferential direction is smaller than the half circumferential length of the container. 3. The apparatus according to claim 1, wherein two of the adhesive bands are provided, and the air introduction holes are provided corresponding to each of the separation bands.
The squeeze container as described. 4. The squeeze container according to claim 3, wherein an air introduction gap is formed in advance between an outer layer and an inner layer communicating with each of the air introduction holes. 5. The squeeze container according to claim 1, further comprising an agent application tool.