JP2003261174A - Packaging for fluid substances - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a package for a flowable substance which can completely discharge a filled flowable substance and can further improve design. A package for a flowable substance 1 includes a pair of molded bodies 10 and 20 having recesses 11 and 21 having substantially the same cross section for filling the flowable substance. A pair of molded bodies 10 and 20
The flanges 1 and 21 are arranged so as to face each other, and the flange portion 1 formed on the periphery of the recesses 11 and 21.
2, 22 are joined. One molded body 10 is made of a hard material having a hardness that does not deform when a gripping force is applied by hand from the outside of the package 1 in the direction of crushing the recess 11. The other molded body 20 is made of a flexible material that is deformed by a gripping force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid substance packaging body filled with a fluid substance such as a viscous seasoning and a liquid medicine.

[0002]

BACKGROUND ART Conventionally, there has been known a fluid substance packaging body filled with a fluid substance such as a viscous seasoning and a liquid medicine. Various measures have been taken to such a package so that the filled fluid substance can be easily discharged. For example, there is a fluent substance package as disclosed in Japanese Patent Publication No. 2-33594. This fluent substance package has a hard lid member having a fold line in the center of the front surface, and concave portions provided on both sides of the fold line on the back surface side of the lid member. A fluid substance is accommodated in this recess, and when discharging the fluid substance, the lid member is bent toward the recess side, and the lid member is broken along the folding line to open. The ruptured lid materials are pressed against each other, the concave portions are brought into contact with each other, and pressure is applied to discharge the fluid substance.

[0003]

However, in such a package, a wrinkle is formed when the recesses are in contact with each other, and a fluid substance remains in the wrinkle portion and cannot be completely discharged from the package. There is a problem. Further, since the lid member has a structure in which pressure is applied to the concave portion by bending the lid member, there is a problem that the shape of the packaging body is limited.

An object of the present invention is to provide a package for a fluid substance capable of completely discharging the filled fluid substance and further improving the designability.

[0005]

Therefore, the present invention aims to achieve the above object by adopting the following constitution. Specifically, the fluent substance packaging body of the present invention is a fluent substance packaging body in which a fluent substance is hermetically housed, and has a recessed portion of substantially the same cross section for filling the fluent substance. A pair of molded bodies, the concave portions are opposed to each other and are joined at their peripheral portions, and either one of the molded bodies has a gripping force applied from the outside of the packaging body in the direction of crushing the concave portions by hand, It is characterized in that it is made of a hard material having a hardness not to be deformed, and the other molded body is made of a flexible material that is deformed by the gripping force.

Materials usable for each molded product include polypropylene (PP) and low density polyethylene (LDP).
E), high density polyethylene (HDPE), linear low density polyethylene (LLDPE), high impact polystyrene (HIPS), polyethylene terephthalate (PE
T), vinyl chloride (PVC), paper, synthetic paper, etc. are considered. Further, each molded article may be molded from a sheet having a multilayer structure of a layer made of such a material and an ethylene-vinyl alcohol copolymer layer, and a layer made of the above material and a styrene-butadiene copolymer. It may be molded from a sheet having a multilayer structure with a rubber layer such as a resin or a styrene-isoprene copolymer resin.

In the present invention having this structure, the other molded body is
Since it is made of a flexible material that is deformed by the gripping force, when the gripping force is applied to the concave portion of the other molded body by hand to discharge the fluid substance, the concave portion is gradually inverted. Since one molded body is composed of a hard material having a hardness that does not deform, at the time when all the fluid substances are discharged,
The concave portion of the other molded body comes into close contact with the concave portion of the one molded body, and the fluid substance can be completely discharged without remaining in the fluid substance package. Also,
Since the shape of the molded body is not limited except that the shapes of the recesses of the other molded body and the one molded body are substantially the same, the designability can be improved. For example, the shape formed by facing the concave portions to each other may be a spherical shape, a quadrangular prism shape, a heart shape, a three-dimensional shape of a vehicle, or the like. The shape of the recess is arbitrary as long as it can be molded.

At this time, it is preferable that a flange for joining is provided on the peripheral edge of the recess of each molded body. By providing the flange portion, it is possible to increase the bonding area between the molded products and to strengthen the bonding.
Further, when handling the package for a fluid substance, the flange portion can be grasped without directly grasping the concave portion filled with the fluid substance, which facilitates the handling.

Further, the flange portion of one molded body is
A non-adhesive portion that is in communication with the concave portion and is not adhered to the flange portion of the other molded body is formed, and a bending groove portion that straddles the non-adhesive portion is formed in the flange portion of the one molded body. May be. When the flange portion of one molded body is bent to the other molded body side by the bending groove, the non-adhesive portion is broken to form an opening, and the fluid substance is discharged from this opening. Therefore, since the opening is formed only by bending the flange of one of the molded bodies, the opening can be easily formed. Further, the opening can be formed in various shapes by changing the cross-sectional shape of the non-bonded portion, and for example, the shape of the opening can be a quadrangular plane, a triangular triangle, a rhombus, or the like.

In addition, a non-bonded portion that is not bonded to the flange portion of the one molded body may be formed on the outer peripheral side of the flange portion of the other molded body. Pinch the non-adhesive part,
The opening portion is formed by peeling the flange portion of the other molded body from the flange portion of the one molded body. Therefore, the opening can be easily formed. Further, in this case, the size of the opening can be arbitrarily set depending on the amount of peeling off the flange.

Further, it is preferable that the one molded body is formed of a multi-layered sheet containing polystyrene as a main component. Since polystyrene is rich in moldability,
It becomes easy to mold one molded body. In addition, the inner layer that directly contacts the fluid substance can be made suitable for the fluid substance by forming the sheet from the multilayer structure.
Furthermore, if the outer layer is a layer having relatively high rigidity, damage to the package can be prevented.

At this time, it is preferable that the other molded body is formed of a multi-layered sheet containing polyolefin as a main component. By using a sheet having a multilayer structure, the inner layer that directly contacts the fluid substance can be made suitable for the fluid substance.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a fluent substance package 1 of the present embodiment. The fluid substance packaging body 1 hermetically stores fluid substances such as viscous seasonings and liquid chemicals.

As shown in FIG. 2 (a), a fluent substance package 1 is a recess 1 for filling a fluent substance and having a substantially identical cross section.
A pair of molded bodies 10 and 20 having 1 and 21 are provided. The recesses 11 and 21 of the pair of molded bodies 10 and 20 are arranged so as to face each other, and are joined by the flange portions 12 and 22 formed on the peripheral portions of the recesses 11 and 21.

One molded body 10 is made of a hard material having a hardness that does not deform when a gripping force is applied from the outside of the package 1 in the direction of crushing the recess 11 by hand. For example, one molded body 10 is composed of a multi-layered sheet containing polystyrene as a main component, and the inner layer in contact with the fluid substance is low density polyethylene. The other molded body 20 is made of a flexible material that is deformed by a gripping force. For example, it is composed of a multi-layered sheet containing polyethylene as a main component, and the inner layer in contact with the fluid substance is linear low-density polyethylene.

On one part of the flange portion 12 of the one molded body 10, there is formed a corrugated non-bonded portion 13 which communicates with the recess 11 and is not bonded to the flange portion 22 of the other molded body 20. . Further, the flange portion 12 has a non-adhesive portion 1
A bending groove portion 14 (half cut) is formed so as to extend over three.

The recesses 11 and 21 having substantially the same cross section form an ellipsoid centered on the bonded flange portions 12 and 22. As shown in FIG. 3, the lengthwise dimension L2 of the ellipsoid formed by the recesses 11 and 21 is, for example, 30 m.
m, the width dimension S2 in the short side direction is 20 mm. Further, the length dimension L1 of the flange portions 12 and 22 along the longitudinal direction of the ellipsoid is, for example, 50 mm, and the length dimension S along the short side direction thereof.
1 is, for example, 30 mm.

The fluent substance package 1 is formed as follows and filled with the fluent substance. First, each molded body 10, 2
0 is thermoformed separately, and the flange portion 1 of one molded body 10
The second non-bonding portion 13 and the portions other than the inflow port for filling the recesses 11 and 21 with the fluid substance are thermally bonded. Then
The groove 12 for bending is formed in the flange 12 of one molded body 10.
4 is formed. Further, the flowable substance is introduced into the recess 1 from the inlet.
1, 21 are filled, and finally the inlet is sealed by a seal.

When it is desired to discharge the flowable substance from the flowable substance packaging body 1 filled with the flowable substance as described above, the flange portion 12 is formed by the bending groove portion 14 and the flange portion of the other molded body 20. Fold it to side 22. Then, the non-adhesive portion 13 of the one molded body 10 is broken and an opening is formed. When a gripping force of a hand is applied to the concave portion 21 of the other molded body 20 (crushing with a finger), the fluid substance is discharged from the opening. The concave portion 21 of the other molded body 20 is gradually inverted by the action of the gripping force, and as shown in FIG. 2B, when the fluid substance is completely discharged, the concave portion 21 of the other molded body 20 is discharged. Comes into close contact with the concave portion 11 of the one molded body 10.

Therefore, according to this embodiment, the following effects can be obtained. The other molded body 20 is made of a flexible material that is deformed by a gripping force, and the one molded body 10 is made of a hard material that is not deformed by a gripping force. When the fluid substance is discharged, the concave portion 21 of the other molded body 20 is gradually inverted and comes into close contact with the concave portion 11 of the one molded body 10.
Therefore, the fluid substance can be completely discharged without remaining. In addition, the shapes of the recesses 11 and 21 are not particularly limited, except that the recesses 11 and 21 of the molded bodies 10 and 20 have the same shape, so that the designability can be improved.

Further, the recesses 11 of the molded bodies 10 and 20,
By providing the flange portions 12 and 22 on the peripheral edge of 21, it is possible to increase the bonding area between the molded bodies 10 and 20 and to strengthen the bonding. Further, when handling the flowable substance package 1, the recesses 11 and 21 filled with the flowable substance are not directly gripped but the flange portion 1
Since it is possible to grab 2,2, it is easy to handle.

Further, the flange portion 1 of one molded body 10
The non-adhesive portion 13 and the bending groove portion 14 extending over the non-adhesive portion 13 are formed on the second portion 2, and the opening portion is formed only by bending the flange portion 12, so that the opening portion can be easily formed. Further, when the fluid substance has a high viscosity, the cross-sectional shape of the non-adhesive portion 13 can be transferred to the fluid substance and discharged. Further, since the one molded body 10 is molded from a sheet having a multi-layer structure containing polystyrene having a good moldability as a main component, the molding becomes easy.

Since the inner layer contacting the fluid substance of the other molded body 20 and the one molded body 10 is made of linear low-density polyethylene or low-density polyethylene, the corrosion resistance is good and various fluid substances are filled. It becomes possible to do.
Further, since the inner layer of the other molded body 20 is linear low-density polyethylene and the inner layer of the one molded body 10 is low-density polyethylene, the other molded body 20 and the flange of the one molded body 10 are formed. Adhesion between the parts 12 and 22 can be improved.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, etc. within the scope of achieving the object of the present invention are included in the present invention. For example,
In the above-mentioned embodiment, each of the molded bodies 10 and 20 was thermoformed, but the molding method of the molded body is not limited to thermoforming, and in the present invention, there are injection molding, press molding, vacuum molding, pressure molding, blister molding and the like. May be. Further, the flange portions 12 and 22 are not limited to heat-bonding, but may be impulse seals, high-frequency seals, or ultrasonic seals.

Furthermore, although the recesses 11 and 21 are assumed to have an ellipsoidal shape, the shape is not limited to this, and at least the cross-sectional shape of the recesses may be the same. For example, in FIG.
As shown in (a), (b) and FIGS. 5 (a), (b),
The cross-sectional shape of each of the recesses 11 and 21 may be a triangle, a rectangle, a trapezoid, or a shape in which two semicircles are connected. Further, the shape of the concave portions facing each other may be a heart shape, a portrait of a character, or a three-dimensional shape of a vehicle. Further, although the non-adhesive portion 13 is shaped like a crow, the non-adhesive portion 13 is not limited to this, and the shape of the opening formed may be a quadrangular plane shape, a flat triangular shape, or the like. Further, not only the non-adhesive portion 13 may be formed on the flange portion 12, but also a non-adhesive portion communicating with the concave portion 21 may be formed on the flange portion 22.

In the above-described embodiment, the opening is formed by breaking the non-bonded portion 13, but as shown in FIG. 6, one molded body 10 is formed on the outer peripheral side of the flange portion 22 of the other molded body 20. An opening is formed by forming a non-bonding part 23 that is not bonded to the flange part 12, pinching the non-bonding part 23, and peeling the flange part 22 of the other molded body 20 from the flange part 12 of the one molded body 10. You may. With this configuration, the size of the opening can be arbitrarily set depending on the amount by which the flange portion 22 is peeled off.

In the above-mentioned embodiment, each of the molded bodies 10 and 20 is formed of a sheet having a multi-layer structure, but a single layer sheet may be formed. Further, the other molded body 20
The one molded body 10 may be formed from a sheet of the same material. In this case, the thickness of one molded body 10 is made thick enough not to be crushed when a gripping force is applied by hand, and the thickness of the other molded body 20 is made thin so as to be crushed by the gripping force.
In this way, a pair of molded bodies 10, made of the same material,
Since 20 can be formed, the manufacturing cost can be reduced.

Further, in the above-mentioned embodiment, each molded body 10,
Although the flange portions 12 and 22 are formed on the flange 20, the flange portions 12 and 22 may not be formed. By doing so, the molding of each molded body can be made easier. Further, it is possible to reduce the size of the fluid substance packaging body. Furthermore, in the above-described embodiment, the fluent substance packaging body 1 has a relatively small size, but the size is not limited to this, and the size may be appropriately set depending on the application.

The following experiments were conducted to confirm the effects of the present invention. (Example) [Formation of sheet] 1. One of the molded bodies 10 The following sheets were manufactured by a co-extrusion multilayer sheet manufacturing apparatus including 5 single-screw extruders. The screw diameters of the five single-screw extruders are 55 mm, 45 mm, and 3, respectively.
It is 0 mm, 30 mm and 30 mm. (1) Sheet structure: General-purpose polystyrene (GPPS) +
High Density Polyethylene (HDPE) + Rubber / High Impact Polystyrene (HIPS) / Adhesive (AD) / Ethylene Vinyl Alcohol Copolymer (EVOH) / Adhesive (A
D) / High impact polystyrene (HIPS) / General purpose polystyrene (GPPS) + High density polyethylene (HD
PE) + rubber / low density polyethylene (LDPE) (thickness of each layer: 30 μm / 90 μm / 10 μm / 20 μm / 1
0 μm / 90 μm / 30 μm / 30 μm Total thickness 310
μm) (2) Table 1 shows the composition of each layer.

[0030]

[Table 1]

2. Other molded body 20 A sheet was manufactured using the same apparatus as the one molded body 10. (1) Structure of sheet: polyethylene (PP) / linear low-density polyethylene (LLDPE) / adhesive (AD) / ethylene vinyl alcohol copolymer (EVOH) / adhesive (AD) / linear low-density polyethylene (LLDPE) /
Linear low density polyethylene (LLDPE) (thickness of each layer 20 μm / 50 μm / 10 μm / 20 μm / 10 μm
/ 50 μm / 40 μm Total thickness 200 μm) (2) Table 2 shows the composition of each layer.

[0032]

[Table 2]

[Manufacture of Packing Body for Fluid Material and Filling with Flowable Material] The same size as that of the above embodiment is obtained by the manufacturing method of the packing material for fluid material and the filling method with fluid material shown in the embodiment Forming a package 1 for a fluent substance having dimensions,
Filled with flowable material. Specifically, each molded body 10, 2
0 and manufacturing of the wrapping material 1 for fluent material, filling of the fluent material, sealing and trimming, using the machine TR 86-SC of UNIFILL, manufacture of the wrapping material 1 for fluent material and filling of the fluent material. went. One molded body 10
Each sheet was fed to the machine so that the LLDPE layer of the sheet to be formed and the LDPE layer of the other molded body 20 were adhered to each other (so that these were the inner surface in contact with the flowable substance). The fluid substance filled in the fluid substance package 1 is ketchup at 70 ° C.

[Evaluation] Flange 12 of one molded body 10
When was bent at the bending groove 14 toward the other molded body 20 side, an opening was easily formed. When the concave portion 21 of the other molded body 20 was pressed with a finger, the ketchup was pushed out from the opening. By pressing until the concave portion 21 of the other molded body 20 was in close contact with the concave portion 11 of the one molded body 10, it was possible to discharge without leaving any ketchup. Thereby, the effect of the present invention was remarkably shown.

[0035]

As described above, according to the present invention, it is possible to provide a package for a fluid substance which can completely discharge the filled fluid substance and can improve the design. There is an effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing a package for a fluid substance according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the fluent substance package.

FIG. 3 is a plan view of the fluid substance packaging body.

FIG. 4 is a cross-sectional view showing a modified example of the fluid substance packaging body of the present invention.

FIG. 5 is a cross-sectional view showing a modified example of the fluid substance packaging body of the present invention.

FIG. 6 is a cross-sectional view showing a modified example of the fluid substance packaging body of the present invention.

[Explanation of symbols]

1 Packing material for fluid substances 10,20 molded body 11,21 recess 12,22 Flange part 13 Non-adhesive part 14 Bending groove 23 Non-adhesive part

Claims (6)

[Claims] 1. A package for a fluid substance in which a fluid substance is hermetically housed, wherein a pair of molded articles having recesses of substantially the same cross-section for filling the fluid substance are formed so that the recesses face each other. One of the molded bodies is made of a hard material having a hardness that does not deform when a gripping force is applied by hand from the outside of the package in the direction of crushing the recess. The fluid body packaging body, wherein the other molded body is made of a flexible material that is deformed by the gripping force. 2. The package for a fluid substance according to claim 1, wherein a flange portion for joining is provided at a peripheral edge of the recess of each molded body. . 3. The package for a fluid substance according to claim 2, wherein the flange portion of the one molded body communicates with the recess and is not bonded to the flange portion of the other molded body. An adhesive portion is formed, and a bending groove portion that straddles the non-adhesive portion is formed in a flange portion of the one molded body. 4. The fluid substance package according to claim 2, wherein a non-adhesive portion that is not adhered to the flange portion of the one molded body is formed on the outer peripheral side of the flange portion of the other molded body. A package for a fluid substance, which is characterized in that 5. The package for a fluid substance according to claim 1, wherein the one molded body is formed by thermoforming a multi-layered sheet containing polystyrene as a main component. A package for a flowable substance. 6. The package for a fluid substance according to claim 1, wherein the other molded body is formed by thermoforming a multi-layered sheet containing polyolefin as a main component. A package for a flowable substance.