JPH0715549Y2 - Packaging container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a packaging container. More specifically, the present invention relates to a packaging container suitable for packaging bath agents, fragrances and the like.

(Prior Art) Conventional bath salts are generally sold in packaging containers such as cans, aluminum packs, paper boxes, and plastic bottles. In all of these, a bath salt for a predetermined number of times or a bath agent for only one use is packaged. For example, the can contains a large amount of powdery or granular bath salt, and is dispensed in an appropriate amount each time it is used. In the case of a pack, a bathing agent corresponding to the amount used once is wrapped in the form of tablets or powder.

(Problems to be Solved by the Invention) However, any packaging container merely functions as a packaging material, and nothing itself gives a feeling of use of a bath salt. That is, it is not possible to enjoy the change in form and the feeling of use. For this reason, when the bath salt is colorless, it is not practical to use the bath salt. In addition, when coloring a bath salt, some people feel uncomfortable and find it uncomfortable to use it for washing hair or face.

The present invention seeks to provide a packaging container that effectively gives the user a feeling of use of the bath salt and increases the enjoyment of use.

(Means for Solving the Problem) In order to achieve such an object, the packaging container of the present invention has an original molding shape, can be deformed into an arbitrary shape at a glass transition temperature or higher, and can be cooled in the deformed shape. The shape can be fixed by, and the container itself is composed of a shape memory resin molded product that is restored to the original molded shape by reimmersing it in water or hot water having a glass transition temperature or higher, and bathing with the same shape memory resin container In a packaging container holding an agent or fragrance,
The shape-memory resin is made of polyurethane-based shape-memory resin, a part of which is foamed, a buoyant body with a lighter specific gravity is included, or the entire structure is thinly formed to provide a streak-thickened surface I try to float it.
Further, in the restored form of the shape-memory resin molded product forming the packaging container, the fragrance is applied to the surface exposed in the air. Furthermore, in the packaging container, a liquid crystal that changes with temperature is applied to the surface of a shape memory resin molded product. Further, the packaging container has a water-permeable bathing agent holding pocket.

(Operation) Therefore, when this packaging container is immersed in hot water or water, the original form is restored, and the bath agent or the fragrance as the content is released into the hot water or the air. Moreover, the packaging container is restored to an arbitrary shape that cannot be imagined from the packaging state.

Further, when the fragrance is used as the content or when the fragrance is applied to the surface of the packaging container, the scent is released simultaneously with the restoration of the form.

(Embodiment) Hereinafter, the configuration of the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 shows an example in which the packaging container of the present invention is applied to a bath salt container. The packaging container 1 restores its original form, that is, its original shape by immersing it in hot water and takes out the contents. In the case of this embodiment, the packaging container 1 is formed of a shape memory resin, and the bath agent 2 is contained therein. It's wrapped up.

Shape memory resin 1a is near the temperature suitable for bathing, for example, 30 to
A polyurethane having a glass transition point (Tg) set to 38 ° C, preferably 35 ° C or higher, for example, a polyurethane prepared by adjusting the composition shown in attached Table 1 and having Tg of 35 ° C in No. 38 in Table 1. It is preferable to use a system shape memory resin (product of Mitsubishi Heavy Industries, Ltd.), a polynorbornene system shape memory resin (product of Nippon Zeon Co., Ltd.), and the like. There is no particular limitation on the shape of the packaging container 1 when it is restored, that is, the original molding shape, and it is preferable to take a desired shape such as a flower, an animal, an animated character, fish, shellfish, toy or the like. Further, the packaging form of the packaging container 1 is modified so that the restored form cannot be imagined in a state in which the bath salt 2 is wrapped or held or supported, that is, a state in which the bath salt is held.

When a polyurethane shape memory resin is used as the shape memory resin, since the specific gravity is 1 or more, which is not shown, a part of the resin is foamed or a buoyant body having a specific gravity of 1 or less is included in the resin. It is preferable to provide it so as to be 1 or less as a whole by allowing or adhering. Alternatively, as shown in FIG. 2, the thin portion 4 may be thin as a whole, and the thick portion 5 having a streak shape may be provided so as to reduce the weight and maintain shape memory.

As shown in FIG. 2, the flower packaging container 1 formed of the shape-memory resin 1a is preferably coated with a fragrance or an aromatic agent 3 on the surface of the petals constituting the flower. As the fragrance, for example, one obtained by adding about 0.5% of a solution of peach leaf extract powder and glycyrrhizin diolium is preferable. Further, when the restored form is a flower, it is also preferable to impregnate a flower core rod made of a porous material with a fragrance or the like. It is also possible to apply a liquid crystal whose color changes with temperature to the surface of the flower. In this case, a change in color can be enjoyed in addition to a change in the form of the packaging container 1.

As the bathing agent 2, a known bath agent in the form of powder, tablets or liquid can be used. In the case of a tablet, the shape memory resin 1a
In the case of powdered bath salts, it is wrapped in a harmless water-soluble resin such as a PVA film or capsule, and in the case of liquid bath agents, it is enclosed in a harmless water-soluble capsule. It is wrapped up.

The packaging container configured as described above is manufactured by using, for example, the polyurethane shape memory resin prepared in Table 1.

This polyurethane-based shape memory resin comprises a bifunctional diisocyanate, a bifunctional polyol and a bifunctional chain extender containing an active hydrogen group in a molar ratio of diisocyanate: polyol:
Chain extender = 2.00 to 1.10: 1.00: 1.00 to 0.10. It was compounded and polymerized by the prepolymer method.
Containing approximately equal amounts of OH and OH groups, with a glass transition point of -50 to 60
C, the degree of crystallinity is 3 to 50% by weight.
The polyurethane-based shape memory resin synthesized in this manner can be represented by the following general formula.

HOR ″ OCONH (RNHCOOR′OCONH) n RNHCOOR ″ OCONH− (RN
HCOOR′OCONH) m RNHCOOR ″ OH m = 1 to 16 n = 0 to 16 The above polyurethane-based shape memory resin has no excess NCO group at the end of the molecular chain, and therefore a crosslinking reaction derived from this NCO group occurs. Instead, it is a chain-like polymer compound and has a high degree of freedom in processability, and general molding methods such as injection molding, extrusion molding, blow molding can be freely applied. In this case, a predetermined shape of restoration, for example, a shape-memory resin such as a polyurethane-based shape-memory resin having a glass transition temperature of 35 ° C. of No. 38 in Table 1 described above is placed in a mold forming a cavity for shaping a flower. It is heated to a temperature above 50 ° C, for example, and injected to memorize the restored shape to form a packaging container.This shape-memory resin molded product, that is, the packaging container, is released from the mold and then cooled to a certain degree, and then a bath agent is added. Wrap it in and restore its shape under heating It is deformed to an unimaginable degree, then cooled to below the glass transition temperature and fixed.

FIG. 3 shows another embodiment. In this embodiment, a pocket 6 into which the bath additive 2 can be loaded is provided. The packaging container 1 is formed with a water-permeable pocket 6 for storing a predetermined restored form by the above-mentioned shape memory resin 1a and for holding the bathing agent 2 so that the bathing agent 2 can be taken in and out freely. The pocket 6 is composed of, for example, a recess for accommodating the bath salt 2 in the form of a tablet or a powdery or granular bath salt or a liquid bath salt wrapped in a capsule or a film, and the bottom portion thereof is water-permeable for allowing the bath salt 2 to penetrate into hot water. The hole 7 is opened. In the case of this container 1, only the bath agent 2 can be replaced. Therefore, the bath salt 2 can be replaced and used any number of times.

FIG. 6 shows an embodiment in which the packaging container is in the form of citrus fruits.
According to this embodiment, a container 1 such as a mandarin orange or a kumquat, which is closed in a state in which a bathing agent 2 is wrapped with several foreskins 1c made of a shape-memory resin, is formed, and when placed in hot water, the foreskin 1c opens. The bathing agent 2 in the inside is made to melt out.

FIG. 7 shows an embodiment in which the packaging container is in the form of shellfish. According to this embodiment, the container 1 is formed by two shells 1d made of a shape memory resin, and the container 1 is closed with the bath salt 2 contained therein. It was made to melt out.

In addition to the above-mentioned shape memory resin 1a as a constituent material of the packaging container, a material whose shape is restored by being immersed in water or hot water in a shape different from the restored shape by compression molding, for example, the nonwoven fabric 1b or sponge, a water-absorbing polymer, etc. But good.
In the case of a non-woven fabric, a desired restoration form, for example, a large number of petals is cut, and one flower is sewn by hot melt or the like, and then compression-molded by a high pressure press into a form in which the restoration form cannot be imagined, for example, spherical or rod-like. For example, as shown in FIG. 4, a non-woven fabric 1b, which is cut into several petals so that the restored form constitutes one flower, is collected by a high pressure press, and the bath salt 2 is put in the center. It is designed to be processed into a disk shape having the concave portion 8 formed therein. At this time, in order to obtain buoyancy, it is preferable to attach the sponge 9 or the like to the bottom. Also, in the case of a sponge, a nonwoven fabric (not shown)
Similar to the case of 1b, it is provided so as to maintain its shape after being processed into a restored shape, compressed by a high pressure press or the like, and vacuum-wrapped with a packaging film such as a water-soluble film in a state where the shape is changed.

Although not shown, the packaging container 1 may be further packaged with a harmless water-soluble film, such as a PVA film, so that it can be placed in water as it is.

The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, the packaging container is not entirely formed of a shape-restoring material. As shown in FIG. 5, the portion 10 holding the bathing agent may be formed of a substance whose shape does not change even when immersed in hot water, and the other portion may be formed of the above-mentioned shape memory resin 1a or the like. In this case, a flower or the like formed of the shape-memory resin 1a or the like is fixed to the case portion 10 holding the excipient 2 by adhesion or welding.

(Effect of the Invention) As apparent from the above description, the packaging container of the present invention is
In a packaging container in which the container itself is composed of a shape-memory resin molded product and holds a bathing agent or an fragrance, a shape-memory resin is a polyurethane-based shape-memory resin and a part thereof is foamed, A buoyant body with a lighter specific gravity than that is included, or it is made thin so that it floats on the surface of the water by providing a streak thick part, so it is a lump that is not unusual before use. When it is put inside, it returns to its original form and rises to the surface of the bath, giving the bather a certain impression and allowing the bathing agent to be melted out.
In addition, when a fragrance is applied to the surface exposed in the air in the restored form of the shape-memory resin molded article constituting the packaging container, the scent is given to the bather to be relaxed at the same time as the form is restored. Also, since the packaging container has a shape memory resin molded product coated with liquid crystal that changes with temperature,
At the same time as the form is restored, the color also changes, further enhancing the interest. Further, since the packaging container has the water-permeable bathing agent holding pocket, only the bathing agent can be replaced and can be used again and again.

[Brief description of drawings]

FIG. 1 shows an example in which the present invention is applied to a bathing agent packaging container, (A) is a front view showing a packaging state, and (B) is a plan view showing a restored form at the time of use. FIG. 2 is an enlarged cross-sectional view of the petals which are a part of the container of FIG. 1, FIG. 3 shows another embodiment of the present invention, (A) is a plan view showing a restored form, (B) FIG. 3 is a sectional view taken along line III-III. FIG. 4 shows an embodiment using a non-woven fabric, (A) is a perspective view showing a packaged state, and (B) is a plan view showing a restored form at the time of use. FIG. 5 shows another embodiment of the present invention. (A) is a front view showing a packaging state, (B) is a front view showing a restored state at the time of use, and FIG. 6 is another view of the present invention. FIG. 7 (A) is a perspective view showing a packaged state, FIG. 7 (B) is a perspective view showing a restored state at the time of use, and FIG. 7 is another embodiment of the present invention. FIG. 3A is a perspective view showing a packaging state, and FIG. 3B is a perspective view showing a restored form at the time of use. 1 ... Packaging container, 2 ... Bath agent, 3 ... Fragrance, 4 ... Thin portion, 5 ... Thick portion, 6 ... Pocket, 7 ... Water passage hole,
8: Recessed portion, 10: Case holding bath salt.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Akira Ishibashi Inventor Akira Ishibashi 2-5-1, Marunouchi, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd. (56) References 62-99247 (JP, U) Actual Kaihei 1-150946 (JP, U)

Claims (6)

[Scope of utility model registration request] 1. An original molded shape, which can be deformed into an arbitrary shape at a glass transition temperature, can be fixed by cooling the deformed shape, and can be re-immersed in water or hot water having a glass transition temperature or higher. In a packaging container in which a container itself is formed of a shape memory resin molded product that is restored to the original molded shape by immersion, and a bath agent or an fragrance is held in the same shape memory resin container, the shape memory resin Is a polyurethane-based shape memory resin, a part of which is foamed, and a packaging container. 2. It has an original molded shape, can be deformed into an arbitrary shape at a glass transition temperature or higher, can be fixed by cooling the deformed shape, and can be reused in water or hot water having a glass transition temperature or higher. In a packaging container in which a container itself is formed of a shape memory resin molded product that is restored to the original molded shape by immersion, and a bath agent or an fragrance is held in the same shape memory resin container, the shape memory resin Is a polyurethane shape memory resin, and includes a buoyancy body having a lighter specific gravity than that. 3. An original molded shape, which can be deformed into an arbitrary shape at a glass transition temperature or higher, can be fixed by cooling the deformed shape, and can be re-immersed in water or hot water having a glass transition temperature or higher. In a packaging container in which a container itself is formed of a shape memory resin molded product that is restored to the original molded shape by immersion, and a bath agent or an fragrance is held in the same shape memory resin container, the shape memory resin Is a polyurethane-based shape memory resin and is thin throughout and has a streak-like thick portion. 4. An original molded shape, which can be deformed into an arbitrary shape at a glass transition temperature or higher, can be fixed by cooling the deformed shape, and can be re-immersed in water or hot water having a glass transition temperature or higher. In a packaging container in which the container itself is made of a shape-memory resin molded product that is restored to the original molded shape by dipping, and a bathing agent or an fragrance is held in the same shape-memory resin container, in the restored form in the air A packaging container, characterized in that an aromatic agent is applied to the surface of the shape-memory resin molded product exposed to the outside. 5. An original molded shape, which can be deformed into an arbitrary shape at a glass transition temperature or higher, can be fixed by cooling the deformed shape, and can be again used in water or hot water having a glass transition temperature or higher. In a packaging container in which a container itself is formed of a shape memory resin molded product that is restored to the original molded shape by immersion, and a bath agent or an fragrance is held in the same shape memory resin container, the shape memory resin A packaging container in which a liquid crystal that changes with temperature is applied to the surface of a molded product. 6. An original molded shape, which can be deformed into an arbitrary shape at a glass transition temperature or higher, can be fixed by cooling the deformed shape, and can be re-immersed in water or hot water having a glass transition temperature or higher. In a packaging container in which the container itself is made of a shape memory resin molded product that is restored to the original molded shape by immersion, and a bath agent or an aromatic agent is held in the same shape memory resin container, a water-permeable bath agent A packaging container having a holding pocket.