JPH07184717A - Vessel for moisture contained cosmetics - Google Patents

Abstract

PURPOSE:To prevent drying and dew condensation of moisture contained cosmetics without requiring high-degree airtightness by arranging a water absorptive holding body between a cover body and the moisture contained cosmetics. CONSTITUTION:This vessel for moisture contained cosmetics is composed of a vessel body 1 and a cover body 3 formed of resin or the like. The vessel body 1 has an inside dish 5, and the moisture contained cosmetics C are housed in the inside dish 5, and packing 7 is adhered to an upper surface of the body 1 over the whole circumference around the upper edge of the inside dish 5. One end of the cover body 3 is rotatably installed on the body 1 by a hinge 9, and a lock part 11 is formed on the other end, and the lock part 11 engages with a projection 13 formed on the body 1. A water absorptive holding body 15 is adhered to an inside surface of the cover body 3, and the water absorptive holding body 15 is impregnated with a proper quantity of moisture after adjusting moisture activity fitted to steam pressure under which moisture contained in the cosmetics C evaporates. The water absorptive holding body 15 absorbs moisture when steam in a vessel space S is plenty, and releases mositure when it is little, and maintains the steam in the space S in a balanced condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for storing water-containing cosmetics, and more particularly to a container for water-containing cosmetics which prevents the water from evaporating from the cosmetics to be lost.

[0002]

2. Description of the Related Art Moisture-containing cosmetics are popular because of their freshness and familiarity with the skin, but they are conventionally stored in bottles or tubes and sold, which is inconvenient to carry. . Therefore, recently, a number of products stored in a compact container having improved airtightness have been commercialized. In this type of container, usually, a packing is arranged between the container body and the lid, and when the lid is closed, the packing is strongly pressed to enhance airtightness.

[0003]

In the conventional compact container of this type, when the lid is closed by applying pressure to improve airtightness, the container is deformed or each component of the container is mass-produced. If the dimensions and mounting positions of the main body, lid, packing, etc. vary, there is a problem in that the packing does not come into close contact and a gap is created in a part, resulting in loss of airtightness. If the airtightness is incomplete, the water content in the cosmetic material evaporates, causing drying, solidification, and cracking. Further, even if the airtightness is good, there is a problem that moisture evaporates due to environmental changes such as temperature, which causes the inner surface of the container to change the composition of the cosmetic and deteriorates usability and sensory characteristics. . The present invention is intended to solve the problems of the conventional containers described above.

[0004]

In order to solve the above-mentioned problems, in the present invention, the water content is composed of a container body for containing a water-containing cosmetic material and a lid body for opening and closing the opening of the container body. In the container for contained cosmetics, the water absorption holder was arranged between the lid and the water-containing cosmetic. Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not particularly limited thereto.

[0005]

1 is a sectional view of an embodiment of a container for cosmetics containing water according to the present invention, which is composed of a container body 1 and a lid 3 made of resin or the like. The container body 1 is provided with a middle plate 5, and the water-containing cosmetic C is stored in the middle plate 5. Packing 7 is provided around the upper edge of the inner plate 5 all around.
Are bonded to the upper surface of the main body 1. One end of the lid 3 (Fig. 1
The right end) is rotatably attached to the main body 1 by a hinge 9, and a lock portion 11 is formed at the other end, and the lock portion 11 engages with a protrusion 13 formed on the main body 1.

A water absorption holder 15 is bonded to the inner surface of the lid 3. The water absorption holder has a multilayer structure shown in FIG.
As shown in (A), the water-absorbent polymer 15b is adhesively applied to the paper or nonwoven fabric 15a, and the paper or nonwoven fabric 15a
It is a laminate of c and sand. Although there are various kinds of water-absorbent polymers 15b, it is desirable to use, for example, a polyacrylate type. Further, as shown in FIG. 2B, an aluminum foil 15d is laid on the outside of the paper or non-woven fabric 15c, and the side of the aluminum foil 15d is adhered to the lid body 3 to prevent moisture from permeating to the lid body 3. It may be prevented.

The water absorption holder 15 is impregnated with an appropriate amount of water whose water activity has been adjusted in accordance with the vapor pressure at which the water contained in the cosmetic C evaporates. This amount may be determined according to the water content of the cosmetic C, the amount of the cosmetic filled in the container, the size of the container space S, the degree of sealing of the container, and the like. Cosmetic C
Depending on the composition, the water absorption holder 15 does not have to contain water in advance. The water absorption holder 15 absorbs water when the amount of water vapor in the container space S is large, and conversely releases water when the amount of water vapor is small, so that the water vapor in the space S is maintained in an equilibrium state.

If the container as described above is used, the container space S
When the water content in the container is small, for example, when the watertightness of the container is not high and the water leaks out of the container, the water absorption holder 15
Moisture is released from the cosmetics C, and evaporation of moisture from the cosmetic C is prevented. On the other hand, for example, when the temperature rises and the amount of water evaporated from the cosmetic C increases, the water absorption holder 15 absorbs and holds the water in the container space S, thereby preventing the "sweat" state. As a result, the composition of the cosmetic C does not change, and the characteristics such as freshness of the water-containing cosmetic are maintained for a long time. Further, since the container is not required to have a high airtightness as compared with the conventional case, the allowable range is widened with respect to the dimensions of each component, the mounting accuracy, the strength of the material, etc., and the degree of freedom in the container design is increased. Further, unlike the conventional case, it is not necessary to strongly crimp the lid body and the container body, so that the container is not deformed and the lid body can be easily opened and closed.

In the above embodiments, a water absorbent holder having a multi-layer structure is used. However, the water absorbent holder is not limited to this. Paper, a water-absorbent polymer or the like can be used alone, or a composite material or the like in which these are combined can be used. In short, the water-absorption holder may be anything as long as it absorbs and holds water and evaporates the absorbed water. Further, the water absorbent support may contain an antibacterial and antifungal agent.

3 to 5 show a second embodiment of the present invention. FIG. 3 is a plan view of the container body (with the lid removed), and FIG. 4 is a sectional view taken along line AA of FIG. FIG. 5 (state with a lid attached), FIG. 5 is an enlarged cross-sectional view of the water absorption holder. The container of this embodiment includes a container body 21 and a lid 25 rotatably attached to a hinge portion (notch portion) 23 of the container body 21. A middle plate 27 is laid in the main body 21,
The right half of the middle plate 27 serves as a stand for the puff 29, and the left half holds a middle plate 31. A water-containing makeup amount C is stored in the middle plate 31. An engaging portion that engages with the lid body 25 when the lid body 25 is closed is provided on the opposite side of the hinge portion 23 of the main body 21.

An inner lid 35 is fitted in a position corresponding to the inner tray 31 of the inner surface of the lid 25. The inner lid 35 is made of, for example, an elastic body such as rubber, and when the lid 25 is closed, the inner lid 35 is pressed against the upper edge of the inner tray 31 to seal the inner tray 31. Inner lid 35
A water absorption holder 37 is attached to the inner surface of the. The structure of the water absorption holder 35 is the same as that of the first embodiment (see FIG. 2). A microporous resin film 39 is arranged at a slight distance from the water absorption holder 35 toward the cosmetic C, and its end is bonded to the inner lid 35. The microporous resin film 39 is a film that allows water vapor to pass through but blocks water. For example, a film containing polyethylene or the like is used. Specifically, commercially available products such as Serpore (Sekisui Chemical Co., Ltd.), NF sheet (Tokuyama Soda Co., Ltd.) and Nitoflon (Nitto Denko Corporation) can be used. Any other film may be used as long as it has fine pores through which water vapor can pass.

With the container as described above, it is possible to obtain the same effect as that of the container of the first embodiment, in which the drying of the cosmetic material and the "sweat" phenomenon can be prevented. Further, by providing the microporous resin film 39, it is possible to prevent the liquid dripping onto the cosmetic C by the microporous resin film 39 when the water absorption holder 37 absorbs too much water. Even in this case, as shown by the arrow in FIG. 5, the water vapor from the water absorption holder 37 passes through the film 39 and is supplied to the cosmetic C side. In addition, the film 39 can cover the water absorption holder 37 to maintain the appearance as a cosmetic container.

In the above embodiment, a compact type airtight container has been described as an example, but the present invention is not limited to this, and as shown in FIG. 6, the lid has a screw type container,
Alternatively, the present invention can be applied to other containers such as a container other than the airtight container, for example, a container in which the lid is simply placed on the container body under its own weight.

Regarding the screw type container (inner diameter of the container main body housing portion is 45 mm and depth is 8.5 mm) as shown in FIG. 6, comparison of the effect with the water absorbing holder and the one without water absorbing holder is confirmed. The test was conducted. As the water absorbent support, a cotton-based nonwoven fabric and a water-absorbent polymer (polyacrylic acid salt-based water-absorbent polymer) were used (both having a diameter of 40 mm) and impregnated with 0.5 g of purified water. The container body was filled with 12.0 g of a water-containing cosmetic, the lid was closed (tightening torque 2 kg · cm), and the mixture was left at 40 ° C. for 7 days (n = 6).
Then, after 7 days, the weight loss of the contents and the change in appearance (the state of occurrence of a gap between the contents and the inner wall of the storage part) were confirmed. The results are shown in Table 1. Values are averages of 6 samples each.

[0015]

[Table 1]

From the above-mentioned test, it was found that the container provided with the water-absorption holder has a small amount of loss of the content and no gap is generated.

[0017]

As described above, according to the present invention,
By disposing the water absorption holder between the lid and the water-containing cosmetic, it is possible to prevent the water-containing cosmetic from drying and prevent dew condensation without requiring a high degree of airtightness.

[Brief description of drawings]

FIG. 1 is a sectional view of a first embodiment of a water-containing cosmetic container according to the present invention.

FIG. 2 is a sectional view of a water absorption holder.

FIG. 3 is a plan view showing a state in which a lid body of a second embodiment of the present invention is removed.

FIG. 4 is a sectional view of a second embodiment of the present invention.

FIG. 5 is a cross-sectional view of a water absorbent carrier and a microporous resin film of a second embodiment.

FIG. 6 is a cross-sectional view showing an example in which the present invention is applied to a screw type container.

[Explanation of symbols]

 1 Container body 3 Lid body 15 Water absorption holder

[Procedure amendment]

[Submission date] January 5, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

[0003]

In the conventional compact container of this type, when the lid is closed by applying pressure to improve airtightness, the container is deformed or each component of the container is mass-produced. If the dimensions or the mounting position of the main body, lid, packing, etc. are varied, the packing does not come into close contact, and a gap is formed in a part, resulting in a loss of airtightness. If the airtightness is incomplete, the water content in the cosmetic material evaporates, causing drying, solidification, and cracking. Furthermore, even if the airtightness is good, there is a problem that moisture evaporates due to environmental changes such as temperature, which causes dew condensation on the inner surface of the container to change the composition of the cosmetic, resulting in poor usability and sensory characteristics. there were. The present invention is intended to solve the problems of the conventional containers described above.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

If the container as described above is used, the container space S
When the water content in the container is small, for example, when the watertightness of the container is not high and the water leaks out of the container, the water absorption holder 15
Moisture is released from the cosmetics C, and evaporation of moisture from the cosmetic C is prevented. On the other hand, for example, when the temperature rises and the amount of water evaporated from the cosmetic C increases, the water absorption holder 15 absorbs and holds the water in the container space S, thereby preventing dew condensation on the inner surface of the container. As a result, the composition of the cosmetic C does not change, and the characteristics such as freshness of the water-containing cosmetic are maintained for a long time. Further, since the container is not required to have a high airtightness as compared with the conventional case, the allowable range is widened with respect to the dimensions of each component, the mounting accuracy, the strength of the material, etc., and the degree of freedom in the container design is increased. Further, unlike the conventional case, it is not necessary to strongly crimp the lid body and the container body, so that the container is not deformed and the lid body can be easily opened and closed.

Claims (4)

[Claims] 1. A container body for containing a water-containing cosmetic,
A container for moisture-containing cosmetics comprising a lid that covers the opening of the container body in an openable and closable manner, characterized in that a water-absorption holder is arranged between the lid and the moisture-containing cosmetic. Cosmetic container. 2. The container according to claim 1, wherein the water absorption holder is arranged on the inner surface of the lid. 3. The container according to claim 1, wherein the water-absorbing support contains a water-absorbing polymer. 4. The container according to claim 2, wherein a microporous resin film is provided between the water absorbent carrier and the water-containing cosmetic.