JP2002238654A - Container for liquid cosmetic product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container for liquid cosmetic products which eliminates the discoloring of a cap on display at a shop-front or during the use at home while the container having the cap made of a synthetic resin is filled with a volatile liquid cosmetic product such as nail enamel. SOLUTION: This container for liquid cosmetic products is constituted of the body thereof for housing the liquid cosmetic product, a cap body made of a polyolefin resin to be detachably mounted on the neck part of the container body, and a member for application mounted inside the cap body. The member for application comprises a fitting part to be fitted in liquid-tight manner into the cap body, a shaft part extended downward from the fitting part, and a brush part provided at the tip of the shaft part. The cap body has an internal protruded part which contacts the upper end of the fitting part while being provided with a through hole which is communicated with outside at a position above the internal protruded part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid cosmetic container, and more particularly, to a liquid cosmetic such as nail enamel which is not discolored even when stored for a long time in a container with a synthetic resin cap. The present invention relates to a liquid cosmetic container.

[0002]

2. Description of the Related Art In general, nail enamels such as nail polish and peticure, which are cosmetics for decorating nails and toes, are composed of a film-forming component, a solvent component, a coloring component, an anti-settling component, and the like. There are a wide variety of colors such as, pink, red, rose, wine, orange, and beige. Such nail enamels are placed in a transparent glass container so that customers can determine the purchase by looking at the color while being displayed at the store, and sealed with a cap to prevent the contents from volatilizing. General. As for the cap, the outer layer is often made of metal in relatively high-end products, but generally the one made of synthetic resin is mainstream, and such a synthetic resin cap is transparent or white from the viewpoint of decorativeness. It is often said. However, if the nail enamel is put in such a synthetic resin-capped container for a long time, the volatile components in the nail enamel penetrate the coating member during display at a store or during home use. Causes some chemical changes to the cap, causing the initially transparent or white cap to gradually discolor, making the appearance appear dirty and diminishing the customer's willingness to purchase or making the customer feel dirty during use There was a problem.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and has been developed in a state where a volatile liquid cosmetic such as nail enamel is placed in a container having a cap made of a synthetic resin. It is an object of the present invention to provide a liquid cosmetic container in which the cap does not discolor during display or use at home.

[0004]

According to the first aspect of the present invention,
A container body for accommodating the liquid cosmetic, a cap body made of a polyolefin resin detachably mounted on a neck of the container body, and a coating member mounted inside the cap body; The member includes a fitting portion which is fitted in the cap body in a liquid-tight manner, a shaft portion extending downward from the fitting portion, and a brush portion provided at a tip of the shaft portion. Wherein the cap body has an inward protrusion with which the upper end of the fitting portion abuts, and a through hole communicating with the outside at a position above the inward protrusion. For containers. The invention according to claim 2 relates to the liquid cosmetic container according to claim 1, wherein the through hole is provided at a top of the cap.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a liquid cosmetic container according to the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an example of the liquid cosmetic container according to the present invention, and FIG. 2 is a sectional view of the liquid cosmetic container according to the present invention. A liquid cosmetic container (1) according to the present invention comprises a container body (2) for containing a liquid cosmetic, and the container body (2).
A cap body (3) detachably attached to the neck of the
A coating member (4) mounted inside the cap body (3).

As the container body (2), a transparent glass container is usually used so that the accommodated nail enamel is prevented from volatilizing to the outside and the color of the nail enamel can be easily visually recognized from the outside. However, the material is not necessarily limited to glass and a material made of another material can be used.

The cap body (3) is made of a polyolefin resin such as polypropylene or polyethylene. In the present invention, polypropylene is most preferably used in terms of solvent resistance, strength, hardness, economy and the like. A female screw (6) which can be screwed to a male screw formed on the outer surface of the neck of the container body (2) is formed below the inner surface of the cap body (3). It is detachable from the container body (2) with the member (4) attached.

The coating member (4) is a cap body (3).
A cylindrical fitting portion (7) fitted into the inside, and a rod-shaped shaft portion (8) extending downward from the fitting portion (7).
And a brush part (9) provided at the tip of the shaft part (8). The fitting part (7) and the shaft part (8) of the coating member (4) are made of a polyolefin resin such as polypropylene or polyethylene, like the cap body (3). Polyethylene is most preferably used in terms of properties, economy and the like.

At a position above the inner surface of the cap body (3),
An inward projection (10) projecting inward is formed. The inward protruding portion (10) is formed to protrude inward in a stepped manner in an upper part of a cylindrical space (first cylindrical space) in which the fitting portion (7) of the coating member (4) is fitted. This forms a columnar space (second columnar space) having a smaller diameter than the columnar space. Here, the inner diameter of the first cylindrical space is substantially equal to the outer diameter of the fitting portion (7), and the inner diameter of the second cylindrical space is smaller than the outer diameter of the fitting portion (7). The gap between the outer surface of the portion (7) and the inner surface of the cap body (3) is sealed in a liquid-tight manner. The upper end of the fitting portion (7) of the application member (4) is in contact with the lower surface of the inward projection (10) in a state of being fitted in the first columnar space. Therefore, liquid such as nail enamel stored in the container body (2) cannot reach the second cylindrical space above the inward projection (10).

A through hole (5) communicating with the outside is formed at a position above the inner projection (10).
This through-hole (5) is preferably provided at the top of the cap (3) as shown in the figure from the viewpoint of workability, but it is located above the inward projection (10) and communicates with the outside. If it is possible, the arrangement position is not particularly limited, and it may be provided on a side surface or the like. Also, the number of through holes (5) is not limited to one as shown in the illustrated example.
It is also possible to provide two or more. The size of the through-hole (5) is not particularly limited either. The through-hole (5) may be formed to have a small diameter as shown in FIG. 2, or the cap body (3) may be cut inward as shown in FIG. The large-diameter through-hole (5) may be formed by connecting the second cylindrical space formed by the protrusion (10) to the outside as it is. When the through-hole (5) is formed as shown in FIG. 3, the inwardly protruding portion (10) serves to prevent the fitting portion (7) from coming off to the upper part.

By providing the above-described through hole (5) in the cap body (3), the volatile component that has passed through the fitting portion (7) can escape to the outside of the container through the through hole (5). it can. Therefore, the volatile component is in the cap body (3).
The cap body (3) and the coating member (4) are not discolored by staying inside. If the diameter of the through hole (5) is small, the coating member (4) may be discolored even if the cap body (3) is not discolored. To prevent this, the diameter of the through hole (5) is required. Needs to be 0.3 mm or more. However, even if only the coating member (4) is discolored, the appearance is not conspicuous, so that the main object of the present invention is achieved. Even if the diameter of the through hole (5) is increased, the gap between the outer surface of the fitting portion (7) and the inner surface of the cap body (3) is sealed in a liquid-tight manner as described above. The liquid cosmetic does not leak out of the through-hole (5) even when it is knocked down.

The liquid cosmetic container (1) according to the present invention is characterized in that the cap (3) is provided with the through hole (5) as described above, and the container body (2) and The shape of the cap (3) is not particularly limited. For example, the cap (3) can be formed into various shapes generally used as a liquid cosmetic container such as nail enamel as shown in FIG.

The liquid cosmetic container (1) according to the present invention can be most suitably used as a container for nail enamel.
Table 1 shows a formulation example of nail enamel.

[Table 1] In this specification and the drawings, the liquid cosmetic container (1)
Is described as an example of a container for nail enamel, but the liquid cosmetics contained in the container body (2) in the present invention is not limited to nail enamel.

[0014]

EXAMPLES Hereinafter, the effects of the present invention will be clarified by showing Examples and Comparative Examples of the liquid cosmetic container according to the present invention. However, the present invention is not limited to the following examples. (Embodiment) A white cap body made of polypropylene (having a through hole diameter of 0.5 m) having the shape shown in FIGS. 1 and 2 and fitted with a glass container body and a polyethylene coating member.
m), the nail enamel described in Example 1 of Table 1 was placed in the liquid cosmetic container according to the present invention, and left standing in a 50 ° C. thermostat in an upright state for 4 weeks. (Comparative Example) Seven kinds of commercially available nail enamels of other companies put in a container having a cap made of a synthetic resin without a through-hole were prepared by simply removing the outer case and the shring film. It was left standing in the same thermostat for 4 weeks in an upright state.

(Visual Evaluation) The discoloration degree of the cap was visually checked every week for the samples of Examples and Comparative Examples, and evaluated according to the following criteria. Table 2 shows the results. ○ ・ ・ ・ No discoloration △ ・ ・ ・ Discoloration is observed × ・ ・ ・ Remarkably discolored

[Table 2]

As shown in Table 2, the discoloration was clearly observed with the naked eye in all of the caps of the comparative examples after 4 weeks, but no discoloration was observed in the caps of the examples.

[0017]

As described above, the invention according to claim 1 comprises a container body for accommodating a liquid cosmetic, a cap body made of a polyolefin resin detachably attached to a neck of the container body, and A coating member mounted inside the cap body, wherein the coating member extends downward from the fitting portion and a fitting portion which is fitted in a liquid-tight manner inside the cap body. And a brush portion provided at the tip of the shaft portion, wherein the cap body has an inner protrusion with which the upper end of the fitting portion abuts, and is located at a position higher than the inner protrusion. Since the liquid cosmetic container is characterized by having a through hole communicating with the outside, the cap is not discolored by volatile components in the liquid cosmetic,
The cap can be kept in the initial clean state for a long time during display at a store or use at home, and the liquid cosmetic does not leak even if the container is accidentally knocked down.

According to a second aspect of the present invention, in the liquid cosmetic container according to the first aspect, the through-hole is provided at a top portion of the cap. In addition, volatile components can be efficiently released to the outside.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a liquid cosmetic container according to the present invention.

FIG. 2 is a cross-sectional view of the liquid cosmetic container according to the present invention.

FIG. 3 is a sectional view showing another example of the liquid cosmetic container according to the present invention.

FIG. 4 is a front view showing another example of the liquid cosmetic container according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid cosmetic container 2 Container main body 3 Cap main body 4 Application member 5 Through-hole 7 Fitting part 8 Shaft part 9 Brush part 10 Inward protrusion

Claims (2)

[Claims] 1. A container body for accommodating a liquid cosmetic, a cap body made of polyolefin resin removably mounted on a neck of the container body, and a coating member mounted inside the cap body. The coating member is provided at a fitting portion to be fitted in the cap body in a liquid-tight manner, a shaft portion extending downward from the fitting portion, and a tip of the shaft portion. A brush portion, wherein the cap main body has an inward protrusion with which the upper end of the fitting portion abuts, and a cap provided with a through hole communicating with the outside at a position above the inward protrusion. And liquid cosmetic container. 2. The liquid cosmetic container according to claim 1, wherein the through-hole is provided at a top of the cap body.