JP2537150Y2 - Foamed liquid squeeze container with excellent resilience - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamed liquid squeezing container, and more particularly to a foamed liquid squeezing container having excellent restorability after releasing a pressing operation on a body of a container body.

[0002]

2. Description of the Related Art A container for storing a liquid detergent for brushing a glass door or a bathroom wall, etc., is used for spraying the liquid as it is on a vertical wall during use. It is well known that containers have been proposed for foaming and releasing liquids. For example, Japanese Patent Publication No. 60-20262 discloses that in a foamy liquid generating and squeezing container provided with a non-return air inflow passage and a bubble generation flow passage, a pipe joint hole opening area for holding an outflow pipe and an inflow groove are described. By making the ratio to the cross-sectional area specific and the average size of the air holes of the porous body provided in the bubble generation flow path to a specific one, a good foaming liquid in a foaming state is ejected. There is disclosed a method for causing this to occur. In addition,
No. -13810 also discloses a foamed liquid squeezing container in which a perforated plate is provided on the upstream side as a foaming means, and a mesh or a nonwoven fabric is arranged on the downstream side with an interval therebetween.

[0003]

The former invention is characterized in that a good foamed liquid in a foaming state can be ejected, but the ratio between the area of the pipe joint hole opening area and the cross-sectional area of the inflow groove is reduced. In addition, precision in the design stage is required to make the average size of the air holes of the porous body provided in the bubble generation flow path specific, and bubbles are generated by the liquid passing through the porous body. There is a problem that the porous body gradually becomes clogged because it is designed to be in a shape. In addition, in the latter invention, since the foaming operation and the suction operation when releasing the squeeze state are performed by the same through hole, the operation of compressing and opening the container body cannot be performed quickly, and the foamy liquid There is a problem that it is not possible to smoothly perform the injection. As described above, in the conventional foamed liquid squeezing container, the more the fine foamed liquid is generated, the more complicated the structure of the porous body becomes, and the smaller the size tends to be. In the liquid squeezing container, there is a problem that the restoring property when the pressing force is released after pressing the body of the container becomes slow, and it is impossible to discharge the foamy liquid quickly and continuously. According to the experiments of the present inventors, in order to discharge the foamy liquid in a continuous state comfortably, after releasing the pressing force, the time required for the body to return to the original shape is:
It was found that if it was not within 0.7 seconds, the restoring force of the torso would not follow the operation speed of the hand, and if this time took more than 1 second, comfortable continuous operation could not be achieved at all.

[0004]

[Object of the invention] Therefore, the object of the invention is to discharge a uniform and fine foamy liquid with a simple operation,
In addition, it is an object of the present invention to provide a foamy liquid squeezing container having a quick restoring property.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object. In this invention, a body of a container body is provided with an in-mold label made of a film of a specific polymer having specific physical properties. It has an important technical feature in that it has an inserted wall structure.

That is, according to the present invention, in a foam liquid squeezing container in which a cap incorporating a foam liquid generating mechanism is screwed to a container body deformable by an external pressure, at least the opposing surfaces of the body of the container. At least 10
It has a flexural modulus of more than 000 kg / cm ² and a thickness of 7
The present invention provides a foam liquid squeezing container excellent in resilience, characterized in that it has a wall structure in which an in-mold label made of a 0-120 μm polypropylene film is inserted. Further, according to the present invention, the container main body has a
00cc or less and the ratio of minor axis / major axis is 1 / 1.3 to 1
/2.0, the foamy liquid squeezing container is provided which is formed of a flat polyolefin-based resin. Also, according to the present invention, the container body is 6000
The foam-like liquid squeezing container is provided which is formed of a polyolefin resin having a flexural modulus of from about 9000 kg / cm ² to about 9000 kg / cm ² and has an average body pressure of the body of 0.6 to 1.2 mm. Further, according to the present invention, the foamy liquid squeezing container is formed by combining a container body and a twist cap including an inner cap and an outer cap,
The inner cap is screwed to the neck of the container body via a screwing portion formed on the inner surface of the peripheral wall extending downward, and is provided at a position substantially adjacent to the center of the inner surface of the inner cap and at a position adjacent to the center. One fluid circulation mechanism is a tubular member having a ball configured to be vertically movable inside, and the upper opening is in surface contact with the ball, and the lower opening is Is provided as a check valve mechanism that makes point contact with the ball, and the other fluid flow mechanism is
A tubular member in which a mesh screen is arranged on the entire opening is inserted, and a tubular member in which a mesh screen is arranged on the entire opening located inward is inserted into the inner surface of the distal opening of the outer cap. The foamed liquid squeezing container having the above configuration is provided.

[0007] In the foamed liquid squeezing container of the present invention,
A feature of the body of the container body is a wall structure in which an in-mold label is inserted. The twist cap is configured such that the inner cap is connected to a neck portion of the container body via a screwing portion formed on an inner surface of a peripheral wall extending downward. And two fluid circulation mechanisms independent of each other are formed at a substantially central part of the inner surface of the inner cap and at a position adjacent to the central part, and one of the fluid circulation mechanisms is vertically movable inside. The upper opening is in surface contact with the ball, the lower opening is provided as a check valve mechanism that makes point contact with the ball, the other fluid flow mechanism, A tubular member in which a mesh screen is arranged on the entire opening is inserted, and a tubular member in which a mesh screen is arranged on the entire opening located inward is inserted into the inner surface of the distal opening of the outer cap. The trunk portion of the container body of foamed liquid squeeze container made of configuration, when providing the interpolated wall constituting the in-mold labels are more remarkably exhibited.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The greatest technical feature of the present invention is that at least the opposing surface of the body of the foam liquid squeezing container body is interpolated with an in-mold label made of a film of a specific polymer having specific physical properties. It is to make it a wall surface configuration. That is, in the conventional foamy liquid squeezing container, the shape restoration after releasing the body pressing has to rely on the physical properties such as the inherent elasticity of the resin constituting the container main body. As described above, as the structure in the foamed liquid squeezing container becomes more complicated, the restorability after releasing the body pressing of the container body becomes slow, and it becomes impossible to continuously and comfortably discharge the foamed liquid. Such a foamy liquid squeezing container becomes difficult for the user to operate.

Such a phenomenon is relatively unlikely to occur when the plane shape of the container body is circular because the restoring force is stronger than when the container body is flat, and is remarkable when the plane shape having the weakest restoring force is flat. However, among the squeezed foam liquid containers, those having a circular plane shape of the container body are mediocre in design, and thus have a problem that they do not suit consumers' preferences, and can represent arbitrary variations. Therefore, a flat shape tends to be preferred.

However, as described above, if the time until the shape is restored after pressing the body is 0.7 seconds or less, the operation can be performed in a state where the movement of the hand and the change in the shape of the body are fitted. It can be used comfortably by the user, but no matter how much the inherent elasticity of the resin that composes the fuselage is improved, the shape after the fuselage is pressed in a foamy liquid squeezing container whose internal structure tends to add complexity It is very difficult to reduce the time until restoration to 0.7 seconds or less, and at present it usually spends more than 1 second. The present inventors have reached the present invention as a result of repeated experiments to solve such a problem.

In the present invention, ASTM D7 is used as an in-mold label to be inserted into the body of the container.
The flexural modulus according to 90 is at least 10,000 kg /
cm ² or more, preferably, 12000Kg / cm ² or more, to no 70 thickness used is polypropylene film 120Myu, it is particularly preferable inter alia are oriented polypropylene. The size of the film of the in-mold label is not particularly limited, but at least,
It is preferable that one in-mold label is inserted in each of the opposing surfaces of the pressing portion of the container body. The advantage of inserting an in-mold label made of a plastic film into the body of the container body is that in addition to improving the shape resilience of the above-described container body, the label itself can be provided with, for example, letterpress printing or intaglio printing. , Gravure printing, lithographic or offset printing, silk screen printing, heat transfer printing, electrophotographic printing, etc., can be used to produce a rich and vivid print display with a sense of color, which can be directly placed in the body of the container body. Even if the shape of the container body has a complicated curved surface to insert, regardless of the shape, it is possible to easily and clearly display a label without printing blur, and to provide a product with high commercial value. In that they can do it.

[0012] If necessary, an overcoat layer having excellent gloss and transparency such as an acrylic resin, a vinyl chloride resin, or a cellulose derivative can be formed on the label substrate. If the adhesiveness is poor, an adhesive layer can be formed on the back surface of the label.

The size of the container body of the present invention is 500 cc.
Hereinafter, it is particularly preferable that the resin is 300 cc or less, and as a resin constituting the resin, for example, polypropylene, polyethylene, polyethylene terephthalate,
Thermoplastic resins such as polyvinyl chloride and a laminate thereof are used, and among them, a flexural modulus of 6000 is used.
Olefin-based resins of from 9000 kg / cm ² to 9000 kg / cm ² , preferably from 7000 to 8000 kg / cm ² , are preferably used. The thickness of the wall surface of the container body is usually about 0.6 to 1.2 mm, and the wall thickness of the surface on which the in-mold label is inserted is formed such that the thickness of the container body is reduced by the thickness of the in-mold label. Will be.

The method for forming the foamed liquid container body of the present invention will be described. FIG. 1 shows a state in which a blow mold for forming a container body of the present invention is released, in which a printed label 1 is applied to blow molds 2a and 2b prior to blow molding of a plastic parison. It is applied to the cavity surface 3 (step A). The printing surface of the label may be on either side, but is usually preferably formed on the back surface of the label, that is, on the container body side. There is a portion for supporting the label 1 on the surface of the cavity, and a reduced-pressure suction mechanism 4 is provided in this portion. The label 1 is attached to the surface of the cavity while being adsorbed by a label insertion device (not shown) called an inserter. Supply is held. FIG. 1 shows an example in which the reduced-pressure suction mechanism 4 is provided on one of the cavities, but this mechanism is also provided on at least a surface facing the same.

Next, in a step B shown in FIG. 2, a parison 6 for forming a container body extruded from the die 5 is formed.
However, when it reaches the bottom of the split molds 2a and 2b or when it passes through the bottom, the split mold is closed and blow air is blown from the upper part. As a result, the expanded parison is shaped into the shape of a cavity, integrated with a label inserted in advance, and a blow-molded container is formed by the in-mold label method. As described above, the container having a wall configuration in which the in-mold label is inserted according to the present invention is excellent as a foamed liquid squeezing container, and any mechanism for generating a foamy liquid can be used. However, the more complex the bubble-like liquid generating mechanism, the more its value is exhibited.

Next, a preferred example of the foam liquid generating mechanism will be described with reference to the drawings. FIG. 3 shows an example of a foamy liquid squeezing container in which a twist cap composed of an inner cap and an outer cap and a container body are combined, and FIG. 3 shows the structure of the twist cap. The inner cap of the twist cap is screwed to the neck of the container body via a screwing portion formed on the inner surface of the peripheral wall extending downward, and substantially at the center of the inner surface of the inner cap and at a position adjacent to the center. Two fluid circulation mechanisms are formed independently of each other. One of the fluid circulation mechanisms is a tubular member having a ball configured to be vertically movable inside, and the upper opening has a surface contact with the ball. The lower opening is provided as a check valve mechanism that makes point contact with the ball, and the other fluid flow mechanism is provided with a tubular member having a mesh screen disposed over the entire opening, and the outer cap is closed. The inner surface of the distal end opening has a configuration in which a tubular member in which a mesh screen is arranged is fitted over the entire opening located inward.

The foamed liquid squeezing container will be described in more detail. In FIG.
Is an inner cap, and the two caps are combined to form a twist cap. C indicates a pipe joint formed of a tubular body having a narrow opening 36 at the center portion inserted into the tubular portion of the inner cap. The inner cap is screwed to the neck 41 of the container body D via a screwing portion 23 formed on the inner surface of the peripheral wall extending downward, and the substantially central portion 24 of the inner cap closes the tip 25, A plurality of openings 26 are formed radially in a portion located slightly below, and a screen 31 made of a synthetic fiber or a metal mesh is opened below the inside of the tubular portion 21 having a hole communicating with the openings. A tubular ring 32 disposed on the entire surface of the tubular portion is inserted therein, and the tubular ring 32 is brought into contact with the jaw portion 28 formed in the tubular portion internal combustion, and is locked in a tight state. Further below, a pipe joint C made of a tubular body in which the same screen 33 as described above is arranged over the entire opening is inserted. The screen may be attached to the tubular ring in a welded state, but even if it is simply placed in contact with the tubular ring, the screen is fixed by the pressing force of the pipe joint and can sufficiently achieve its purpose. .

At least one continuous vertical groove 3 is formed around the inner wall of the pipe joint up to the jaw 37 where the pipe abuts.
4 is engraved, and a pipe 35 for liquid supply is inserted in circumscribing the vertical groove, and this pipe reaches the bottom of the container body. Further, a check valve mechanism 51 is formed at a portion located between the tubular portion and the peripheral wall 22 via the wall surface 27 of the tubular portion. The check valve mechanism has a stainless steel ball 52 inside, and the ball is arranged so as to be movable up and down. When the ball is pushed up by the fluid from the inside, the upper opening 54 is closed, and when the pressure is released. The ball moves downward by its own weight and is supported by the support piece 53, and the support piece 53 and the ball 5
A gap 55 is formed between the two. (See FIG. 4 showing a bottom view of the check valve mechanism.)

Next, a description will be given of a mechanism in which the liquid contained in the container is foamed using the twist cap. The outer cap A has an opening at the distal end, and an annular partition wall is formed downward on the inner surface of the opening for airtightly fitting the distal end portion 25 of the tubular portion of the inner cap when the cap is closed. Although the shape of the opening at the tip of the outer cap is not particularly limited, in order to preferably discharge the foamy liquid to the wall surface, for example, as shown in FIG. Alternatively, as shown in FIG. 6, an opening 11 facing upward is provided, and the outer wall of the opening is formed, for example, in a bellows-like shape such as a bellows-shaped part 111 so that the tip 113 is open. The insert 112 may be inserted. The outer cap may have any shape as long as it can smoothly release the foamy liquid. For example, the outer cap is preferably formed in a dome shape as a whole.

It is preferable that the container body is excellent in the heat melting property with the in-mold label, and furthermore, the body is pressed to deform the container once, and when the pressing is released, the original shape is immediately obtained. It is preferable to be made of a material that can be easily recovered to, for example, polypropylene, polyethylene, polyethylene terephthalate, polyvinyl chloride, and those molded with a thermoplastic resin such as a laminate of these are used. Even if such a resin is used, if the foamy liquid generation mechanism becomes complicated, by itself, when the body pressure is released,
This exceeds the limit of 0.7 seconds, which is the limit of comfortable shape restoration, and it is meaningful to adopt a wall configuration in which the in-mold label is inserted in the body.

The wall of the container body may be transparent or opaque, but it is preferably colored or non-colored and transparent or translucent to make the content of the container visible to some extent. In addition, since the material constituting the cap needs to be airtightly configured to engage with the container body and the inner cap and the outer cap, for example, a thermoplastic resin such as polypropylene or polyethylene is used. Is preferably used.

FIG. 5 shows a state in which the liquid is stored in the foamy liquid squeezing container of the present invention. It is necessary to provide an air space 43 above the container, for example, about 1/4 to 1/5 of the entire container, without filling the container 42 with the liquid 42 inside the container body D. In use, by pressing (arrow) the wall surface of the container body D, the liquid 42 is pushed up to below the screen in the inner cap through the pipe 35. On the other hand, the air above the container passes through the gap of the vertical groove 34 formed between the pipe 35 and the pipe joint C and also reaches below the screen in the inner cap, and coalesces with the liquid to foam. To start. Further, by continuing to press the container wall, the mixed liquid and air pass through the screen portion to become a finer foamy liquid, and through the opening 26 of the tubular portion 24, the opening 11 of the outer cap.
Released from

Next, when the pressed state of the container body is released,
The inside of the container body becomes a negative pressure, and the air enters the container from the opening 11. At this time, the ventilation hole that communicates with the pipe 35 through the two screens from the opening 26 of the tubular portion is filled with the foamy liquid, and the check valve mechanism that communicates with the opening 11 of the outer cap is supported by the ball 52. Since the air is supported by the portion 53, air from the outside enters the container body through the gap 55 of the check valve mechanism. At this time, since the body of the container body has a wall configuration in which the in-mold label is inserted, restoration of the deformed body becomes extremely quick, and the foamy liquid can be continuously discharged comfortably.

That is, according to the foamed liquid squeezing container of the present invention, at least the opposing surface of the container body has a wall structure in which an in-mold label is inserted, so that the foamed liquid having a complicated internal mechanism as described above. Even in a liquid container, the inhalation of air from the outside after the release of the foamy liquid can be performed extremely quickly, and a uniform, fine foamy liquid can be quickly released by a simple operation. .

[0025]

According to the present invention, at least a surface of a body of a container body in a foamed liquid squeezing container in which a twist cap composed of an outer cap and an inner cap is screwed to a container body deformable by external pressure. In addition, by adopting a wall configuration with an in-mold label inserted,
The release of the foamy liquid and the inhalation of air from the outside can be performed quickly.

[Brief description of the drawings]

FIG. 1 is a view for explaining a step A of forming a container body having an in-mold label of the present invention.

FIG. 2 is a view for explaining a step B of molding the container body having the in-mold label of the present invention.

FIG. 3 is a longitudinal sectional view showing a preferred example of a twist cap screwed into the foam liquid squeezing container of the present invention.

FIG. 4 is a bottom view of the check valve mechanism in the twist cap of the foam liquid squeezing container of the present invention.

FIG. 5 is a longitudinal sectional view of a state where a liquid is stored in the foamy liquid squeezing container of the present invention.

FIG. 6 is a side sectional view of an opening-fitting tubular body for discharging a foamy liquid in a free direction.

[Description of sign]

 Reference Signs List A Outer cap B Inner cap C Pipe joint D Container body 1 In-mold label 2a, 2b Blow split mold 3 Cavity surface 4 Reduced pressure suction mechanism 5 Dice 6 Parison 11 Foamed liquid discharge opening 12 Annular ring 13 Outer cap screwing portion 21 Pipe joint insertion part 22 Inner cap peripheral wall 23 Threaded part with container body 24 Tubular part 25 Inner cap tip part 26 Inner cap foamy liquid discharge opening 27 Tubular part wall surface 28 Jaw 29 Inner cap partition wall 31 Screen 32 Tubular ring 33 Screen 34 Vertical groove 35 Pipe 36 Narrow opening 41 Container body neck 42 Liquid 43 Air space 51 Check valve mechanism 52 Ball 53 Support piece 54 Opening 111 Bellows-like cylindrical body 112 Opening outer body

Claims (4)

(57) [Scope of request for utility model registration] 1. A foamed liquid squeezing container in which a cap having a built-in foamy liquid generating mechanism is screwed to a container body deformable by an external pressure, at least an opposing surface of a body portion of the container is at least 10,000 kg / cm. A foam liquid squeezing container having excellent resilience, characterized by having a wall structure in which an in-mold label made of a polypropylene-based film having a bending elastic modulus of ² or more and a thickness of 70 to 120 µ is inserted. 2. The container body has a content of 500 cc or less,
The foamed liquid squeezing container according to claim 1, wherein the ratio of the minor axis / major axis is 1 / 1.3 to 1 / 2.0 and the planar shape is formed of a flat polyolefin resin. 3. The container body is 6000 to 9000k.
3. The foamed liquid squeezing container according to claim 1, wherein the foamed liquid squeezing container is made of a polyolefin resin having a flexural modulus of elasticity of g / cm < ² >, and has an average body pressure of 0.6 to 1.2 mm. 4. The foamed liquid squeezing container is formed by combining a twist cap comprising an inner cap and an outer cap with a container body, and the inner cap is provided via a screwing portion formed on an inner surface of a peripheral wall extending downward. And two fluid circulation mechanisms that are independent of each other are formed at a substantially central part of the inner surface of the inner cap and at a position adjacent to the central part, and one of the fluid circulation mechanisms is A tubular member having a ball configured to be vertically movable therein, wherein an upper opening is in surface contact with the ball, and a lower opening is provided as a check valve mechanism in point contact with the ball. In the fluid circulation mechanism, a tubular member having a mesh screen disposed on the entire opening is inserted therein, and a mesh screen is disposed on the entire surface of the opening located on the inner surface of the distal opening of the outer cap. 4. The foam liquid squeezing container according to any one of claims 1 to 3, wherein the foamed liquid squeezing container has a configuration in which a set tubular member is inserted.