JPH05162773A - Packing container for delivering multilayer contents and packaged preparations - Google Patents

Abstract

PURPOSE:To deliver at least two kinds of contents as in the form of a cream or jelly, laid one upon another, through a plurality of passages provided with a viscosity resistance control means from a common valve by a method wherein a flexible inner bag is provided in an outer cylinder and outside pressure is applied entirely to the inner bag, thereby utilizing the difference between the inside and outside pressures. CONSTITUTION:A valve unit 3 and the upper part of a flexible inner bag 4 are crimped to a curing part 2 around an opening at the top of a pressure resisting outer cylinder 1 and a communicating tube 7 is attached to the lower end of the valve unit 3. The inner bag 4 is filled with first to fourth contents 9-12 laid one upon another in multiple tiers from the top to the bottom of the bag. A hole 18 is formed as a first passage in a radial manner at the lower part of a bottomed cylindrical valve case 14 of the valve unit 3. The communicating tube 7 is provided with second and third passages 19 and 20 located in the positions corresponding to the second and the third contents 10 and 11 and an opening 20 at the lower end of the communicating tube 7 serving as a fourth passage corresponding to the fourth contents. A space 22 between the inner bag 4 and the outer cylinder 1 is filled with injection material such as LP GAS.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container and packaging preparation for multi-layer discharge. More specifically, it relates to a packaging container and a packaging preparation capable of discharging two or more kinds of cream-like or jelly-like contents in a continuous multi-layered state.

[0002]

2. Description of the Related Art Conventionally, a multi-layer type dentifrice tube capable of extruding two-color dentifrice in two layers or a sandwich is known. This one, as shown in Figure 18,
Two-color dentifrices 103 and 104 are accommodated via a boundary 102 that divides the tube container 101 in the vertical direction. This product can move the dentifrice from the shoulder portion 107 to the mouth portion 108 of the container while squeezing the body portion 105 in order from the bottom portion 106 side while contracting in the radial direction without breaking the layered state. The toothpaste can be taken out from the mouth 108 in the form of a continuous layered string. Therefore, it is possible to give the user a visual interest.

[0003] On the other hand, the contents which do not want to come into contact with the propellant (propellant) are housed in a gas impermeable, collapsible inner bag, and the inner bag is housed in the outer cylinder and at the same time as the outer cylinder and the inner cylinder. So-called double aerosol containers in which the space between the bags is filled with propellant are also known.

[0004]

Since the pressing portion of the multi-layer toothpaste tube is local and arbitrary, it is necessary to store the two kinds of contents in a vertically divided manner. Therefore, in the case of two or more kinds of contents having different viscosities, the contents having low viscosity come out first when both are simultaneously discharged from the same mouth. Therefore, if the viscosities are different, it cannot be taken out in a layered state. In addition, since it is necessary to separately fill two kinds of contents in the vertical direction, the filling work is extremely troublesome. Further, it is practically difficult to take out with a different cross section, for example, a concentric cross section.

The present invention further develops such a conventional multi-layered extruded tube and can discharge two or more kinds of contents having different viscosities, and further discharges a string-like contents having a relatively complicated cross-sectional pattern. It is an object of the present invention to provide a packaging container and a packaging preparation that can be used.

[0006]

A packaging container for multi-layer discharge according to the present invention includes an outer cylinder, a collapsible inner bag housed in the outer cylinder, the inside of the inner bag and the outside of the outer cylinder. An openable and closable valve interposed between the discharge port and a plurality of passages for communicating the respective stages of the contents filled in multiple stages in the inner bag from the opening to the bottom with the valve, It comprises viscous resistance adjusting means provided in each passage and pressurizing means for applying external pressure to the entire inner bag to discharge the contents. The pressurizing means may have the same structure as the conventional double aerosol container, or may be a pump attached to an inner bag. The outer cylinder may be a flexible sealed tube, and the gas between the outer cylinder and the inner bag may be the pressurizing means.

[0007]

In the packaging container of the present invention, external pressure is evenly applied to the entire inner bag, and cream or jelly-like contents are discharged by utilizing the pressure difference between the inside and the outside. Therefore, in the contents,
Even though the contents are filled in multiple stages from the opening to the bottom of the inner bag, uniform pressure is applied to each stage.
Therefore, since the contents of each stage are pushed out through the corresponding passages, it is possible to simultaneously discharge a plurality of types of contents in layers from the same nozzle or the like.

Further, since a viscous resistance adjusting means (for example, an orifice) is provided for each passage from the passage to the valve, even if a plurality of contents have different viscosities, they can be discharged at a desired ratio at the same time. ..

Further, in the packaged preparation of the present invention, the contents may be filled in an inner bag step by step. Therefore, the filling work is extremely easy.

[0010]

EXAMPLES Examples of the packaging container and the packaging preparation of the present invention will be described below with reference to the drawings. 1 is a sectional view showing an embodiment of a packaging container of the present invention, FIG. 2 is an enlarged sectional view of a valve and a communicating tube in FIG. 1, and FIG. 3 is a sectional view showing an example of how an inner bag according to the present invention is crushed. FIG. 4 is a perspective view of the string-shaped contents discharged from the packaging container of the present invention,
5 to 9 are cross-sectional views showing various examples of the string-like contents discharged from the packaging container of the present invention, and FIG. 10 is a perspective view of a main part showing another embodiment of the valve and the communicating tube according to the present invention. 11 is a sectional view of the discharge contents formed by the valve and the communication tube of FIG. 10, and FIGS.
4 is a perspective view of a main part showing another embodiment of the communication tube according to the present invention, and FIG. 15 is a cross-sectional view showing still another embodiment of the valve and the communication tube according to the present invention.
16 and 17 are sectional views showing other embodiments of the valve and the pressurizing means according to the present invention.

FIG. 1 shows an application of the present invention to a so-called dual aerosol device, which is a pressure-resistant outer cylinder 1 and its outer cylinder 1.
The curling portion 2 around the upper opening of the valve has a crimped valve unit 3 and a collapsible inner bag 4 housed in the outer cylinder 1. The upper end of the inner bag 4 is sandwiched and fixed to the crimp portion. Further, a push button 6 is fitted on the stem 5 of the valve unit 3, a communication tube 7 is attached to the lower end of the valve unit 3, and a bottom valve 8 for injecting a propellant is provided on the bottom of the outer cylinder 1. Has been. The inner bag 4 is filled with the first, second, third and fourth contents 9, 10, 11, 12 from the upper part to the lower part in a so-called multi-stage state. The valve unit 3 is substantially the same as the conventional one as shown in FIG.
A cylindrical bottomed valve case 1 fixed in a cylindrical protrusion 13a provided in the center of the mounting cup 13.
4. Gasket 15, which is interposed between the mounting cup 13 and the upper end of the valve case 14, the valve case 14
The stem 5 and the return spring 16 and the like are arranged therein so as to be slidable in the axial direction.

Further, at the bottom of the valve case 14,
The holes 18 forming the first passage are radially formed. The communication tube 7 is provided with the second and third inner bags 4.
Holes 19 and 20 are bored at positions corresponding to the contents 10 and 11, respectively, and constitute second and third passages together with the communication tube 7. Further, the communication tube 7 constitutes a fourth passage together with the opening 21 at the lower end.

In the space 22 between the inner bag 7 and the outer cylinder 1,
A propellant such as LP gas filled from the bottom valve 8 is stored.

The outer cylinder 1 may be the same as the outer cylinder of a conventional double aerosol container, such as an aluminum can. The inner bag 4 may be the same as the conventional inner bag having gas barrier properties and foldability, such as a laminated sheet of aluminum foil and synthetic resin film. Further, the communication tube 7 may be the same as the conventional dip tube. When the inner bag 4 is filled with the contents, for example, from the gap between the mounting cup 13 and the curling portion 2 which are temporarily fixed, the fourth, third, second and first contents 1
Fill 2, 11, 10, and 9 in that order.

Next, the operation of the packaging container constructed as above will be described. Since the inner bag 4 is flexible, the pressure inside it is the same as the pressure in the space 22. Therefore, when the push button 6 is pushed down to open the valve unit 3,
The first to fourth contents 9 to 12 are discharged in a thin string shape from the nozzle 23 of the push button 6 through the first to fourth passages (see FIG. 4). In that case, the arrangement state of each passage,
Depending on the magnitude of the viscous resistance and the like, the liquid is discharged in various cross-sectional patterns such as a sandwich shape, a concentric shape, and a radial shape as described later.

During discharge, as the content decreases, the inner bag 4 is gradually crushed inward in the radial direction as shown in FIG. 3, for example. The pressure inside the inner bag 4 is always maintained at the same pressure as the space 22 between the outer cylinder 1 and the inner bag 4.

The inner bag 4 is provided with 3 as shown in FIG.
Vertical folds, folds or ribs may be formed in advance in order to ensure the crushing inward from the direction (or 4 to 6 directions).

The contents to be accommodated in the packaging container of the present invention include those for enjoying various sectional patterns or layered patterns, such as chocolate confectionery, foods such as creams of different colors, massage creams, foundation creams, Cosmetics or quasi-drugs such as face wash foam (gel type), hair styling products, milky lotion, toothpaste, etc.
In addition, daily necessities such as shoe cream are included. In that case, if the transparent contents are used for some of the contents, the visual effect is further enhanced. Also, if you use red cream for the inner layer and white cream for the outer layer, it will be a white string in the discharged state, but it will become a flesh color only when you crush it to apply it to the face, so you can enjoy its unexpectedness it can.

On the other hand, it is also possible to obtain various functional ejected products by utilizing a specific cross-sectional pattern. For example, an adhesive having an inner layer that starts polymerization by oxidation with air and having an outer periphery covered with an air barrier layer can be used.

Furthermore, since the pattern of the cross section is constant,
There is an effect that the discharge ratios of a plurality of types of contents can be made constant.
By utilizing such an action, it is possible to simultaneously discharge a substance which is not preferable to be mixed in advance, or a substance which is difficult to be mixed, for example, "miso" and "lard" at a constant ratio. Further, it can be used as a spice by combining kneaded wasabi and creamy soy sauce, and can also be used in a hair dye cream for mixing two kinds. In that case,
Discharging as thin a string as possible (for example, a diameter of 0.5 to 1 mm) facilitates uniform mixing, and has the advantage of preventing unevenness.

4 to 9 show examples of the cross-sectional shape of the discharged material used for such various uses. Discharge 23 of FIG.
Is the simplest chocolate confectionery in which one side 24 of the circular cross section is ordinary black chocolate and the other 25 is white chocolate. For example, by forming a pair of holes on the side wall near the lower end of the valve case 14 so as to face each other, one of the holes is opened as it is, and the other end is connected with a communication tube communicating with the second contents. You can get it.

FIG. 5 shows two layers which are concentrically divided,
It is a hand cream in which the inside 26 is red and the outside 27 is white. You can enjoy the surprise that this item changes color when picked up and crushed. The imaginary line 28 in FIG. 5 shows the case where a three-layer concentric circular cross-sectional pattern is used. This is, for example, a multi-stage valve case 14a and multiple communication tubes 71, 7 as shown in FIG.
2, 73 can be used for ejection.

The discharge 29 shown in FIG. 6 has a single central tube 74 communicating with the lower stage of the inner bag as shown in FIG.
And two side tubes and 75,76 leading to the middle stage,
It can be discharged by the holes 18 communicating with the upper stage. That is, the central portion 29a is supplied from the central tube 74, and the peripheral portion 29 is supplied from the side tubes 75 and 76 and the hole 18, respectively.
b and 29c are supplied.

Further, by changing the arrangement of the communication holes and the sectional shape of the nozzle of the push button, it is possible to obtain the discharges 30 to 32 having various patterns and shapes as shown in FIGS. 7 to 9, for example. An imaginary line 30a in FIG. 7 shows a case where the cross-sectional shape of the nozzle is changed to give a mayonnaise, cream or the like an uneven striped pattern.

In the arrangement of the communicating tubes shown in FIG. 10, the cross-sectional areas of the holes 33 and the open holes 18 of the valve case 14 to which the side tubes 75 and 76 are connected are reduced to reduce the holes 33 and 18. If the passage resistance is increased, a discharge product having a cross-sectional pattern in which the peripheral portions 29b and 29c are separated from each other as shown in FIG. 11 (in this case, a stripe pattern is also formed on the surface of the discharge product) is obtained. .. As described above, in the packaging container of the present invention, the discharge ratio can be changed by appropriately selecting the dimensions of the viscous resistance adjusting means such as the diameter of the orifice of each passage.

However, the greatest effect of the viscous resistance adjusting means is that two or more kinds of contents having mutually different viscosities, which cannot be simultaneously ejected conventionally, can be ejected simultaneously.
In other words, by making the communication hole (or communication tube) that communicates with contents with relatively low viscosity a small diameter and the communication hole (or communication tube) that communicates with contents with a high viscosity large, the collapsed state of the inner bag It is possible to make almost uniform from the bottom to the lower part, and it is possible to simultaneously discharge two or more kinds of contents having different viscosities.

As the passage in the present invention, in addition to the holes formed in the above-mentioned valve case and the communication tube, FIG.
Various passages may be employed, such as the one shown at 14.

In FIGS. 12 to 14, reference numeral 35 denotes a core, and 36 denotes a coating tube which is tightly covered on the outer periphery of the core 35. In the case of FIG. 12, a hole 37 formed in the center of the core 35 and a vertical groove 38 formed around the core 35 form a passage. The vertical grooves 38 have different lengths, and communicate with the contents of each step through the holes 39 of the covering tube 36 formed at the blind ends thereof.

In the case of FIG. 13, the vertical groove 40 is formed not on the core 35 but on the inner surface of the covering tube 36. This also has the same effect as the passage of FIG.

In the case of FIG. 14, the vertical groove 4 on the outer periphery of the core 35 is used.
1 reaches the lower end, and the lower end of the covering tube 36 is stepped or inclined. Even when the vertical groove 41 is made to penetrate a plurality of contents in this way, the contents of each stage are discharged only from the vertical groove having the smallest resistance, and therefore the same effect as in the case of FIG. 12 can be obtained.

In the case of FIG. 15, the lower portion of the valve case 14a is formed into a multi-tiered bamboo shape, and the communicating tubes 7 having different diameters are respectively provided to the step portions 42, 43 and the lower end tubular portion 44.
1, 72, 73 are connected. This is suitable for obtaining a discharge product having a multi-circle cross section shown in FIG.

The apparatus shown in FIG. 16 has an outer cylinder 45 and an inner bag 46.
There is no propellant in the space 47 between
Communicates with the atmosphere through a hole 48 formed in the outer cylinder 45. That is, in this embodiment, the outer cylinder 45 is merely a protective case for the inner bag 46, and pressure resistance is not particularly required. A casing 49, a piston 50, a return spring 51 and a check valve 5 are provided above the inner bag 46.
A pump 54 consisting of 2, 53 is attached. As in the case described above, the inner bag 46 is filled with a plurality of contents in multiple stages.

When the push button 55 at the upper end of the piston 50 is pushed in, the contents in the casing 49 can be discharged to the outside, and when the piston 50 rises by the return spring 51, the communicating hole 56 and the communicating tube. The contents can be sucked up into the casing 49 through 57. That is, when the piston 50 rises, the inner bag 46 has a negative pressure, and the inner bag 46 is crushed by the atmospheric pressure (arrow P).

In the packaging container shown in FIG. 17, the outer cylinder 58 constitutes a pump. That is, the outer cylinder 58 is made of a flexible material, and is configured to elastically return to its original shape even if it is deformed by locally receiving a force. A hole 59 communicating with the outside air is formed in a part of the outer cylinder 58, and a check valve 60 is provided inside the hole 59.

In this case, even if the outer cylinder 58 is deformed (arrow Q) so as to crush it, a uniform pressure is applied to the inner bag 61 all around. Therefore, the multi-tiered contents 62, 63, 64 in the inner bag 61 are discharged from the spout 67 through the hole 65 and the communication tube 66.

Reference numeral 68 in FIG. 17 is a check valve for preventing air from being sucked from the spout 67.

Instead of the outer cylinder 58 which can elastically return to its original shape in the packaging container of FIG. 17, a sealed tube having no check valve may be used. In this case, since the sealed tube does not return to its original shape, a metal tube that does not elastically return can be used. In this case, a gas such as air trapped in the sealed tube serves as a pressurizing means.

In the embodiment of FIGS. 16 and 17, the inner bag 4
Since the filling of the contents into the inside of 6, 6 can be performed under the atmospheric pressure, the filling work is easy. Further, since no pressure container is used, it is suitable as a container for children's confectionery or the like. Further, since the inner bags 46, 61 can be replaced at home, it is possible to sell only the replacement inner bag filled with the contents.

In the embodiment shown in FIGS. 1 and 16, the push buttons 6 and 55 are used for operation. However, the operability of the valve or pump is improved or the operation force is increased by using a lever or a trigger. Good.

[0040]

INDUSTRIAL APPLICABILITY In the packaging container and the packaging preparation of the present invention, two or more kinds of contents can be simultaneously discharged in various cross-sectional patterns, including the cases where the viscosities are different from each other. Moreover, even contents having different viscosities can be discharged at a desired ratio.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a packaging container of the present invention.

FIG. 2 is an enlarged sectional view of the valve and the communication tube in FIG.

FIG. 3 is a sectional view showing an example of how the inner bag according to the present invention is crushed.

FIG. 4 is a perspective view showing an example of a string-shaped content discharged from the packaging container of the present invention.

FIG. 5 is a cross-sectional view showing another example of the string-shaped contents discharged from the packaging container of the present invention.

FIG. 6 is a cross-sectional view showing another example of the string-shaped contents discharged from the packaging container of the present invention.

FIG. 7 is a cross-sectional view showing another example of the string-shaped contents discharged from the packaging container of the present invention.

FIG. 8 is a cross-sectional view showing another example of the string-shaped contents discharged from the packaging container of the present invention.

FIG. 9 is a cross-sectional view showing still another example of the string-shaped contents discharged from the packaging container of the present invention.

FIG. 10 is a perspective view of essential parts showing another embodiment of the valve and the communication tube according to the present invention.

11 is a cross-sectional view of the discharge contents formed by the valve and the communication tube of FIG.

FIG. 12 is a perspective view of a main part showing another embodiment of the communication tube according to the present invention.

FIG. 13 is a main part perspective view showing another embodiment of the communication tube according to the present invention.

FIG. 14 is a perspective view of a main part showing another embodiment of the communication tube according to the present invention.

FIG. 15 is a sectional view showing still another embodiment of the valve and the communication tube according to the present invention.

FIG. 16 is a cross-sectional view showing another embodiment of the packaging container of the present invention.

FIG. 17 is a sectional view showing still another embodiment of the packaging container of the present invention.

FIG. 18 is a partially cutaway front view showing an example of a conventional packaging container.

[Explanation of symbols]

 1 Outer cylinder 3 Valve unit 4 Inner bag 7 Communication tube 9, 10, 11, 12 Contents 18, 19, 20 hole 21 Opening 22 Space 45 Outer cylinder 46 Inner bag 47 Space 54 Pump 56 Communication hole 57 Communication tube 58 Outside Cylinder 61 Inner bag 62, 63, 64 Contents 66 Communication tube

Claims (5)

[Claims] 1. An outer cylinder having rigidity, a collapsible inner bag accommodated in the outer cylinder, and an openable and closable member interposed between the inside of the inner bag and a discharge port outside the outer cylinder. A valve, a plurality of passages for communicating the respective stages of the contents filled in multiple stages in the inner bag from the opening to the bottom, and the valve, viscous resistance adjusting means provided in each passage, and A packaging container for multi-layer discharge, comprising a pressurizing means for applying external pressure to the entire bag to discharge the contents. 2. The packaging container according to claim 1, wherein the outer cylinder is a pressure resistant container, and the pressurizing means is a propellant filled between the outer cylinder and the inner bag. 3. The packaging container according to claim 1, wherein the space between the outer cylinder and the inner bag is in communication with the atmosphere, and the pressurizing means is a pump for making a negative pressure in the inner bag. 4. The packaging container according to claim 1, wherein the outer cylinder is a flexible sealed tube, and the gas between the sealed tube and the inner bag constitutes the pressurizing means. 5. A packaging preparation comprising the packaging container according to claim 1 and an extrudable and dischargeable content filled in each stage of an inner bag of the packaging container.