JP2012130484A - Heating cosmetic device and cosmetic method using the same - Google Patents

Abstract

An object of the present invention is to provide a thermal cosmetic device in which a sufficient amount of a liquid preparation penetrates into the skin and the effects inherent to the liquid preparation are fully expressed.
A thermal cosmetic device (1) includes a heating element (2), a liquid holding member (4) disposed adjacent to the heating element (2), and a liquid preparation impregnated in the liquid holding member (4). The moving amount of the liquid preparation from the thermal cosmetic device 1 is 3 to 4.5 μg / cm ² . In the thermal cosmetic device 1, the time for maintaining the skin temperature in the range of 38 to 42 ° C is 5 to 30 minutes in an environment of 25 ° C and 40% RH, and the skin temperature exceeds 42 ° C in the same environment. It is preferable to have a heat generation characteristic that does not heat.
[Selection] Figure 1

Description

  The present invention relates to a cosmetic device using heat and a cosmetic method for beauty using the same.

  As a conventional technique for absorbing cosmetics into the skin using warm heat, for example, a facial warming tool described in Patent Document 1 is known. This facial warming tool includes a sheet-shaped thermal body (A) having a breathable and non-breathable surface, an aqueous composition (B), and a carrier sheet (C). In this facial warming tool, the sheet-like thermal body (A) and the aqueous composition (B) are separately airtightly packaged before use. In use, the aqueous composition (B) supported on the carrier sheet (C) is brought into contact with the face in a state where the carrier sheet (C) is partially joined to the non-ventilated surface of the sheet-like thermal element (A). Affix as follows. In the aqueous composition (B), 2 to 8 times the weight of the carrier sheet (C) is supported on the carrier sheet (C).

JP 2006-198325 A

  However, since the amount of the aqueous composition (B) carried on the carrier sheet (C) cannot be said to be sufficient with the above-mentioned heating tool, a sufficient amount of the aqueous composition ( B) is difficult to transfer to the skin. Therefore, it is difficult to sufficiently develop the inherent effect of the aqueous composition (B).

  Therefore, the subject of this invention is providing the thermal cosmetics which can eliminate the fault which the prior art mentioned above has.

The present invention is a thermal cosmetic tool comprising a heating element, a liquid holding member disposed adjacent to the heating element, and a liquid preparation impregnated in the liquid holding member, wherein the liquid from the cosmetic tool The present invention provides a thermal cosmetic tool in which the transfer amount of the preparation is 3 to 4.5 μg / cm ^{2 as} measured by the following method.
[Transfer amount of liquid preparation]
Measured in an environment of 25 ° C and 40% RH. Place the high-quality paper on a horizontal and flat table, on which the thermal cosmetic tool having the liquid holding member impregnated with the liquid preparation is placed so that the liquid holding member faces the high-quality paper. Place. A pressure of 1.5 g / cm ² is applied to the entire warm cosmetic device, and this state is maintained for 5 seconds. After 5 seconds, the thermal makeup tool is removed and the mass of the fine paper is measured. A value (μg / cm ² ) obtained by dividing the mass increase of the fine paper by the area of the liquid holding member is taken as the amount of movement of the liquid preparation from the cosmetic device.

Further, the present invention is a cosmetic method for beauty using the above-mentioned thermal makeup tool,
Causing the heating element to generate heat, and bringing the liquid holding member impregnated with the liquid preparation into contact with the skin, allowing the liquid preparation to migrate to and penetrate into the skin under a heated condition;
Continue contacting the liquid holding member to the skin until the skin temperature drops to 38 ° C.,
When the skin temperature is lower than 38 ° C., a cosmetic method for separating the liquid holding member from the skin is provided.

  ADVANTAGE OF THE INVENTION According to this invention, a sufficient amount of liquid preparations penetrate | infiltrate skin, and the thermal cosmetics and cosmetics method by which the effect which this liquid formulation originally expresses fully are provided.

Fig.1 (a) is a top view which shows one Embodiment of the thermal makeup tool of this invention, FIG.1 (b) is the bb sectional view taken on the line in Fig.1 (a). FIG. 2 is a plan view showing a mask provided with the thermal makeup tool shown in FIG. FIG. 3 is a diagram showing a use state of the mask shown in FIG. FIG. 4 is a plan view showing another embodiment of the thermal cosmetic tool of the present invention. FIG. 5 is a plan view showing a mask provided with the thermal makeup tool shown in FIG. FIG. 6 is a plan view showing a mask provided with still another embodiment of the thermal cosmetic tool of the present invention. FIG. 7 is a graph showing the wrinkle improving effect of the thermal cosmetic tool obtained in Example 1.

  Hereinafter, the present invention will be described based on preferred embodiments thereof. The thermal cosmetic tool of the present invention is a device that allows a liquid preparation such as cosmetics to penetrate into the skin of the user, particularly the facial skin, using thermal heat. A heating element is used to generate the heat. This heating element generally generates heat by utilizing an oxidation reaction of an oxidizable metal. Details of this heating element will be described later. The said liquid component is hold | maintained at the liquid holding member distribute | arranged to the site | part with which a thermal cosmetic tool contact | abuts skin. The liquid holding member is disposed adjacent to the heating element. When the thermal cosmetic tool of the present invention is used, the liquid holding member side of the cosmetic tool is brought into contact with the user's skin, and the liquid preparation impregnated and held in the liquid holding member is transferred to the user's skin. The liquid preparation is allowed to penetrate into the user's skin by heat generated from the heating element.

  The thermal cosmetic device of the present invention is characterized by the amount of liquid preparation released from the cosmetic device. Specifically, the amount of the liquid formulation released from the thermal cosmetic device of the present invention is set higher than the amount of the liquid formulation released from this type of cosmetic device known in the art. A user who is using the thermal cosmetic device of the present invention by setting the amount of the liquid preparation released from the thermal cosmetic device of the present invention toward the user's skin to be high, coupled with the action of heat generated from the heating element. The surface of the skin becomes very moist under heat, and a high temperature and high humidity state during bathing is realized. By realizing such a high-temperature and high-humidity state, the liquid preparation penetrates quickly and in large quantities into the user's skin, and the effects inherent to the liquid preparation are fully expressed.

From the viewpoint of making the above-mentioned advantages remarkable, in the thermal cosmetic tool of the present invention, the amount of liquid formulation transferred from the cosmetic tool is 3.0 to 4.5 μg / cm as measured by the following method. ² , preferably 3.0 to 4.0 μg / cm ² . By setting the moving amount of the liquid preparation within this range, the liquid preparation can be sufficiently penetrated into the skin without causing dripping or the like when the cosmetic tool is used. When the amount of movement is less than 3 μg / cm ² , the liquid preparation that has permeated the holding member does not transfer to the user's skin even when the thermal cosmetic tool is brought into contact with the skin, There is an inconvenience that it is only taken in. On the other hand, when the amount of movement exceeds 4.5 μg / cm ² , dripping occurs during use due to an excessive liquid preparation. In addition, a large amount of energy at the time of heat generation is consumed to warm the liquid preparation, and it becomes difficult for the user to perceive the heat, or a problem such as not reaching a sufficient heat generation temperature occurs.

The measuring method of the transfer amount of the liquid preparation is as follows. Measured in an environment of 25 ° C and 40% RH. Place quality paper on a flat, flat surface. Fuji Xerox P paper (basis weight 64 g / m ² ) is used as high quality paper. On top of that, a thermal cosmetic tool having a liquid holding member impregnated with a liquid preparation is placed so that the liquid holding member faces the fine paper. A pressure of 1.5 g / cm ² is applied to the entire warm cosmetic device, and this state is maintained for 5 seconds to allow the fine paper to absorb the liquid preparation. After 5 seconds, the thermal makeup tool is removed and the mass of the fine paper is measured. The value obtained by subtracting the mass of the fine paper before absorbing the liquid preparation from the mass increase of the fine paper, that is, the weight of the fine paper that has absorbed the liquid preparation is divided by the area of the liquid holding member. The value (μg / cm ² ) thus obtained is taken as the amount of liquid formulation transferred from the thermal cosmetic tool. The measurement is performed three times, and the average value is calculated. The area of the liquid holding member is obtained by cutting the constituent material of the liquid holding member into a certain shape, measuring its mass, and dividing the mass by the basis weight of the constituent material. If the size of the quality paper used in the measurement of the amount of movement is substantially the same as that of the liquid holding member, the influence of lateral diffusion of the liquid preparation can be excluded, so that more accurate measurement can be performed.

  In order to set the movement amount of the liquid preparation within the above range, the material of the liquid holding member in which the liquid preparation is impregnated and held may be appropriately selected. Examples of such a liquid holding member include various fiber sheets that are materials that can easily absorb and hold liquid, porous materials such as sponges and foams, dry sheets of natural materials such as agar, gelatin, and collagen, and the like. And composite materials. Since the liquid holding member is a member that directly contacts the user's skin, it is advantageous that the touch is good. Considering this, it is preferable to use a fiber sheet as the liquid holding member.

  As the fiber sheet, various nonwoven fabrics, woven fabrics, knitted fabrics, laminated materials thereof and the like can be used. Among these fiber sheets, it is preferable to use various nonwoven fabrics from the viewpoint of good liquid absorption and retention and good texture. Examples of the nonwoven fabric include air-through nonwoven fabric, spunbond nonwoven fabric, spunlace nonwoven fabric, meltblown nonwoven fabric, and composite materials of these nonwoven fabrics. These nonwoven fabrics may be used in combination with other sheet materials such as films.

  Among the above-mentioned various nonwoven fabrics, it is particularly preferable to use a needle punch nonwoven fabric because a nonwoven fabric having a high bulk and good texture can be obtained.

Each of the above-mentioned nonwoven fabrics preferably has a thickness of 1 to 5 dtex, particularly 2 to 4 dtex, from the viewpoint of sheet strength and skin feel. The length of the constituent fibers is appropriately determined according to the method for producing the nonwoven fabric, and both continuous filaments and staple fibers can be used. The basis weight of the nonwoven fabric is one factor that affects the amount of movement of the liquid preparation. In the present invention, the basis weight is preferably 30 to 100 g / m ² , particularly preferably 30 to 60 g / m ² . Moreover, it is preferable that the thickness of the nonwoven fabric is 0.2 to 1 mm, particularly 0.24 to 0.43 mm, from the viewpoint of holding the liquid preparation and transferring to the skin. The thickness of the nonwoven fabric is measured with a peacock precision measuring instrument dial thickness gauge.

  In addition, although there is a tendency that the moving amount of the liquid preparation increases as the amount of the liquid preparation impregnated and held in the liquid holding member increases, the relationship between the two does not have a primary correlation. As described above, the present invention has one of the characteristics in the amount of the liquid preparation released from the cosmetic device, and the amount of movement of the liquid preparation is constant when the liquid holding member is impregnated with the liquid preparation. This is because of the relationship between the amount that the liquid holding member holds the liquid preparation and the amount of the liquid preparation that is released from the liquid holding member. The present inventors investigated the relationship between the amount of the liquid preparation impregnated and held in the liquid holding member and the amount of movement of the liquid preparation. It was found that the amount rose rapidly. Patent Document 1 described above describes that the amount of the aqueous composition (B) impregnated in the facial heating device described in the same document is 2 to 8 times the weight of the carrier sheet (C). In view of the fact that the amount of impregnation is not so high, the amount of movement of the aqueous composition (B) from the carrier sheet (C) is far below the range defined in the present invention. Conceivable.

  In the thermal cosmetic tool of the present invention, the amount of the liquid preparation impregnated and held in the liquid holding member (hereinafter also referred to as the impregnation holding amount) is preferably 800 to 1500 mass with respect to 100 parts by mass of the liquid holding member before impregnation. Parts, more preferably 890 to 1500 parts by mass, and still more preferably 1000 to 1300 parts by mass. By setting the impregnation amount of the liquid preparation within this range, the movement amount of the liquid preparation from the liquid holding member can be easily set within the above-described range.

  The moving amount of the liquid preparation from the liquid holding member can also be controlled by its composition. For example, when an aqueous liquid having water as the main base component of the liquid preparation is used, the moving amount of the liquid preparation from the liquid holding member can be easily set within the above-described range. From this viewpoint, the liquid preparation preferably contains 50 to 98% by mass, particularly 60 to 92% by mass of water.

  The liquid preparation preferably contains glycerin from the viewpoint of enhancing the retention of the liquid preparation that has penetrated into the skin, that is, the moisture retention of the skin. The proportion of glycerin contained in the liquid preparation is preferably 8 to 25% by mass, particularly 8 to 20% by mass.

  In addition to the above-mentioned components, the liquid preparation may contain various medicinal ingredients having an effect on human skin, particularly human facial skin. Examples of such medicinal ingredients include substances that are absorbed through the skin and exhibit effects such as tightening of the dermis, whitening, blood circulation promotion, promotion of lipolysis, and anti-inflammation. Specific examples include plant extracts, animal extracts, guanidine derivatives, catecholamines, amino acids, vitamins, hormones, organic acids, natural sphingosine derivatives, and synthetic ceramide analogs. The proportion of these components in the liquid preparation is preferably 3 to 25% by mass and more preferably 5 to 20% by mass in terms of the total amount thereof. The liquid preparation may further contain components usually used in the art, such as a pH adjuster and a preservative, as necessary.

  As described above, the liquid holding member impregnated and held with the liquid preparation is disposed adjacent to the heating element. Specifically, the heating element is accommodated in a bag-like container, and the container and the liquid holding member are joined to dispose the liquid holding member adjacent to the heating element. As this container, for example, the peripheral areas of the first cover sheet made of a water-impermeable sheet and the second cover sheet made of a breathable sheet are joined to each other, and a housing space for the heating element is formed inside them. A flat shape can be used. In this case, it is preferable that the liquid holding member is bonded to the water-impermeable sheet side of the container. By disposing the liquid holding member on the side of the water-impermeable sheet, absorption of the liquid formulation impregnated and held in the liquid holding member into the heating element is blocked by the water-impermeable sheet, so that the heating element generates heat. Characteristics are less likely to be impaired.

  As the water-impermeable sheet, a sheet that does not have water permeability and does not have air permeability, or a sheet that does not have water permeability but has air permeability can be used. An example of the former is a resin film. An example of the latter is a resin porous sheet. On the other hand, a resin-made porous sheet is mentioned as said air permeable sheet.

  When a non-permeable sheet as the first covering sheet is used, the container is from one side thereof, that is, from the side where the liquid holding member is not disposed. Air is distributed. On the other hand, when an air permeable sheet as the first covering sheet is used, air is circulated from both sides of the container. When the first covering sheet made of the water-impermeable sheet has air permeability, when the air permeability of the first covering sheet is compared with the air permeability of the second covering sheet made of the air-permeable sheet, From the viewpoint of stabilizing the heat generation characteristics, it is preferable that the second covering sheet has higher air permeability.

When the first covering sheet made of a water-impermeable sheet has air permeability, the air permeability (JIS P8117, hereinafter referred to as the measured value when referred to air permeability) is 5,000 to 100,000 seconds / (100 ml · 6. 42cm ^2), it is particularly preferably 10,000 to 40,000 seconds / (100ml · 6.42cm ^2). On the other hand, the air permeability of the second cover sheet made of a breathable sheet is 500 to 60000 seconds / (100 ml · 6.42 cm ² ), particularly 1500, regardless of whether or not the first cover sheet has air permeability. It is preferable to be 20,000 seconds / (100 ml · 6.42 cm ² ).

  The heating element accommodated in the accommodating body composed of the first covering sheet and the second covering sheet includes particles of an oxidizable metal, and further includes an electrolyte and water. The heating element may further contain a reaction accelerator. The heating element may be in the form of a powder composition containing these components, or may be in the form of a sheet containing fibrous materials such as wood pulp and synthetic fibers in addition to these components. Good. When the heating element is in the form of a sheet, the heating element is in the form of a wet papermaking or a form in which a solid content such as particles of an oxidizable metal is supported on a fiber sheet containing a fibrous material. It can be.

  Examples of the oxidizable metal constituting the heating element include iron, aluminum, zinc, manganese, magnesium, calcium, and the like. As the reaction accelerator, it is preferable to use a reaction accelerator that has a function as an oxygen retention / supply agent for an oxidizable metal in addition to acting as a moisture retention agent. Examples of the reaction accelerator include activated carbon (coconut shell charcoal, charcoal powder, calendar bituminous coal, peat, lignite), carbon black, acetylene black, graphite, zeolite, perlite, vermiculite, silica and the like. As the electrolyte, an electrolyte capable of dissolving an oxide formed on the surface of the oxidizable metal particles is used. Examples thereof include alkali metal, alkaline earth metal or transition metal sulfates, carbonates, chlorides or hydroxides.

  In order to increase the degree of penetration of the liquid preparation applied to the user's skin from the thermal cosmetic tool of the present invention into the skin, it is advantageous to appropriately control the heat generation characteristics of the thermal cosmetic tool. The state in which the skin temperature is 38 ° C. or higher as a result of the study of the relationship between the skin temperature and the degree of penetration of the liquid preparation into the skin by bringing the thermal cosmetic tool of the present invention into contact with the user's skin. It has been proved that it is effective from the viewpoint of sufficient penetration of the liquid preparation into the skin that lasts for 5 minutes or longer. It was also found that the penetration of the liquid preparation into the skin would be saturated even if the skin temperature was maintained at 38 ° C. or higher for more than 30 minutes. From these viewpoints, the thermal cosmetic tool of the present invention is an environment in which the time for maintaining the skin temperature in the range of 38 to 42 ° C. is 25 ° C. and 40% RH in a state where it is in contact with the user's skin. Under, it is preferable to have exothermic properties of 5-30 minutes, in particular 5-20 minutes. In addition, the thermal cosmetic tool of the present invention preferably has a heat generation characteristic that does not heat the skin temperature to more than 42 ° C. in an environment of 25 ° C. and 40% RH in a state where it is in contact with the user's skin. . Thereby, it is possible to effectively prevent an excessive thermal burden from being applied to the user's skin.

  The above skin temperature measurement method is performed as follows. That is, a thermocouple is attached to the skin surface of the measurement site, held with an adhesive tape, a thermal cosmetic tool is brought into contact with the thermocouple, and the heat generation characteristics are measured. The thermocouple is connected to the data logger, and measures the skin surface temperature of the part that has come into contact with the thermocouple from the start of attaching the thermal cosmetic tool. The measurement point may be a single point or a plurality of points in contact with the thermal cosmetic tool.

  In order to control the heat generation characteristics of the thermal cosmetic tool of the present invention as described above, it is possible to set the air permeability of the first and second cover sheets constituting the container for housing the heat generator as described above. It is advantageous. It is also advantageous to appropriately control the proportions of various components contained in the heating element. From this viewpoint, it is preferable to use 1 to 10 parts by mass, particularly 3 to 6 parts by mass of the electrolyte, and 2 to 15 parts by mass of the reaction accelerator, particularly 100 parts by mass of the oxidizable metal contained in the heating element. It is preferable to use 6 to 12 parts by mass, and it is preferable to use 35 to 65 parts by mass of water, particularly 40 to 55 parts by mass.

  The thermal cosmetic tool of the present invention is hermetically housed in a packaging material having high oxygen barrier properties before use. In use, the packaging material is unsealed, and the thermal cosmetic tool is removed from the packaging material. As a result, contact with oxygen in the air starts and heat generation starts. Then, by placing the liquid holding member impregnated with the liquid preparation in contact with the user's skin, the liquid preparation is applied to the skin under the condition that the skin is warmed by the heat of the heating element. Transition, infiltrate. When the thermal makeup tool is attached and the skin temperature of the part where the makeup tool contacts gradually increases, the liquid preparation that has moved to the user's skin is also gradually heated, and there is no gap between the user's skin and the thermal makeup tool. It becomes a high-temperature and high-humidity state, and the user's skin can easily accept various components contained in the liquid preparation. In addition, since the pores of the skin open due to the increase in skin temperature, it becomes easier to accept liquid preparations. Furthermore, when glycerin is contained in the liquid preparation, the liquid preparation that has penetrated into the skin is easily retained by the skin due to the moisturizing effect of glycerin. During this time, it is preferable that the time for maintaining the skin temperature in the range of 38 to 42 ° C. is 5 to 30 minutes as described above.

  As time further elapses, the heat generation of the heating element decreases, and the skin temperature gradually decreases accordingly. However, just because the fever has declined, rather than immediately separating the thermal cosmetic tool from the user's skin, the thermal cosmetic tool continues to contact the skin until the skin temperature drops to some extent, and the skin temperature It is advantageous to separate the thermal cosmetic device from the skin after it has fallen to some extent. The reason for this is that if the thermal cosmetic device is separated from the skin with the skin temperature being somewhat high, the skin with the high skin temperature will be exposed to the outside world, and the liquid preparation that has penetrated the skin will be exposed to the outside world. This is because the skin that has been moistened is dried by the temperature difference. Therefore, in the present invention, it is preferable that the thermal cosmetic tool is kept in contact with the skin until the skin temperature drops to 38 ° C., and when the skin temperature becomes lower than 38 ° C., the thermal cosmetic tool is preferably separated from the skin. . The reason why the temperature for separating the thermal cosmetic device is set to 38 ° C. or lower is that the phase transition temperature of the intercellular lipid in the skin is about 39 ° C., so that if the skin temperature falls below this phase transition temperature, the intercellular lipid This is because the moisture barrier property is exhibited, so that even if the thermal cosmetic tool is subsequently separated from the skin, the liquid formulation that has penetrated the skin can be effectively prevented from being released to the outside.

  Thus, the timing for separating the thermal cosmetic tool from the user's skin is advantageous when the skin temperature is lower than 38 ° C., and the time for maintaining the skin temperature at 38 to 42 ° C. is used. In addition to the above range, it is preferable that the time from the start of heat generation until the skin temperature becomes lower than 38 ° C. is not excessively long. For example, even if the retention time of the skin temperature is in the above range, if the time from the start of heat generation until reaching the required temperature becomes long, the total use time of the thermal cosmetic tool becomes too long, which affects the usability. . From this point of view, the thermal cosmetic tool of the present invention has a time from the start of heat generation until the skin temperature decreases to less than 38 ° C. in an environment of 25 ° C. and 40% RH, 5 to 40 minutes, particularly 7 to 25 minutes. It preferably has exothermic properties that are minutes. In order for the thermal cosmetic tool of the present invention to have such heat generation characteristics, for example, the ratio of each component constituting the heating element is appropriately adjusted, or the first and first elements constituting the container for housing the heating element are used. The air permeability of the covering sheet 2 may be appropriately controlled.

  The thermal cosmetic tool of the present invention is used by contacting it with, for example, the user's eyes, eyelids, eyelids, eyes, forehead, cheeks, nose, mouth, chin, neck, etc. Moisture content can be increased, and the skin can be moisturized, firm and plump. Moreover, when various medicinal ingredients are contained in the liquid preparation, a skin care effect due to the medicinal ingredients, for example, an effect of improving wrinkles and an effect of making pores less noticeable are exhibited. In particular, the above-mentioned effect becomes more prominent by using the thermal cosmetic tool of the present invention 2 to 5 times a week and continuing this for 2 weeks or more.

  FIG. 1 shows an embodiment of the thermal cosmetic tool of the present invention. A thermal cosmetic tool 1 shown in the figure includes a flat heating element 2, a container 3 covering the entire surface of the heating element 2, and a liquid holding member disposed on the outer surface of one surface 3a of the container 3. And a sheet 4. The heating element 2 has a substantially L shape in plan view. By having such a shape, as will be described later, it is possible to simultaneously apply heat to both the corners of the eyes and the eyelids using the thermal makeup tool of the present embodiment.

  One surface 3a of the container 3 is composed of a first cover sheet made of a water-impermeable sheet. The other surface 3b of the container 3 is composed of a second cover sheet made of a breathable sheet. The first and second cover sheets each have an extension region extending outward from the periphery of the heating element 2, and the extension regions of both cover sheets are continuously joined by the joint portion 3d. . The shape of the 1st and 2nd coating sheet has copied the shape of the heat generating body 2 substantially.

  The liquid holding sheet 4 is laminated on the first cover sheet constituting the one surface 3 a of the container 3. The liquid holding sheet 4 is substantially the same shape as the first cover sheet. The first cover sheet and the liquid holding sheet 4 are joined at the joint portion 3d described above. The first covering sheet and the liquid holding sheet 4 are in a non-bonded state with respect to a portion inside the bonding portion 3d, specifically, in a region where the heating element 2 exists. The liquid holding sheet 4 is impregnated and held with a predetermined amount of liquid preparation.

  The thermal cosmetic tool 1 having the above-described configuration may be used as it is in contact with the user's skin, but is preferably attached to the inner surface of the mask 10 as shown in FIG. It is advantageous to use it.

  The mask 10 shown in FIG. 2 is formed substantially symmetrical with respect to the center line CL. The “Y” direction shown in the figure is a direction (longitudinal direction) parallel to the center line CL, and the “X” direction is a direction (width direction) perpendicular to the center line CL.

  The mask 10 includes a horizontally long mask body 11 that covers the periphery of both eyes of the user when worn (see FIG. 2). The mask body 11 has a skin contact surface 11a that contacts the user's skin and a non-skin contact surface 11b (see FIG. 3) located on the opposite side. The thermal makeup tool 1 of the present embodiment is used in a pair of left and right with respect to the mask 10, and each thermal makeup tool 1 is a portion R corresponding to the eyes of the eyes of the user on the skin contact surface 11 a of the mask body 11. It is arranged in. Here, the “periphery of the eye” of the user refers to an area outside the eyelid in the open eye state, and includes an area including the orbital area and wider than that. In addition, the “part R corresponding to the user's eyes” means the user's eyes on the skin contact surface 11a of the mask body 11 (the part indicated by Ea in FIG. 3) as shown in FIG. 3 to a portion including the user's eye corner (a symbol B in FIG. 3) from a portion under the user's eye (a portion denoted by a symbol A in FIG. 3) between the eye and the eye corner (a portion indicated by a symbol Eb in FIG. 3). The part corresponding to the part over the part shown) is shown.

  The mask main body 11 is formed from a substantially flat sheet material, and has a shape and size sufficient to cover the periphery of both eyes of the user when in use. More specifically, as shown in FIG. 3, the mask body 11 covers a region from the forehead (eyebrow) to the nose tip in the Y direction, and covers a region between both cheeks in the X direction. The size and shape. The portions corresponding to the eyes of the user are cut out to form the openings 12 and 12, and the portions corresponding to the user's nose are cut out to form the notches 13.

  As shown in FIG. 2, the mask main body 11 has a pair of ear hooks 14 and 14 for hooking ears during use. The ear hooking portion 14 is formed by cutting out a portion corresponding to the position of the user's ear in the extending portion extending outward in the X direction from the thermal makeup tool 1 arranged on the mask main body 11. The mask 10 can be fixed on the user's face so as to cover the periphery of both eyes of the user by passing the ear through the opening cut out of the ear hook 14.

  The mask body 11 preferably has extensibility in the X direction from the viewpoint of fitting on the user's face. Here, the mask main body 11 has the extensibility when the entire mask main body 11 has the extensibility and only a part of the mask main body 11 (for example, the ear hooking portion 14) is extended. Including both cases of having sex.

  Although the thickness (thickness under no load) of the mask body 11 is not particularly limited, it is preferably thin from the viewpoint of obtaining a good feeling of use, and the thickness under a 700 Pa load is 0.3 to 5 mm, particularly 0.5 to 2 mm is preferable. As a sheet material which comprises the mask main body 11, what has air permeability and extensibility is preferable, and what has air permeability and elasticity is especially preferable. Specific examples include spunlace nonwoven fabric, needle punched nonwoven fabric, air-through nonwoven fabric, and stretch-bonded nonwoven fabric.

  As shown in FIG. 1, the heating element 2 constituting the thermal makeup tool 1 is such that the outer edge 2 c 1 extends along the periphery of the eye in the side part 2 c arranged on the side close to the eyes of the user in the heating element 2. (Refer FIG. 3), the narrow part 21 is formed in the center part 2e. As a result, when the mask 10 is used, as shown in FIG. 3, the constricted portion 21 of the side portion 2 c of the thermal cosmetic device 1 is arranged at a portion corresponding to the top of the cheekbone C of the user, and is substantially L-shaped. As shown in FIG. 3, the heating element 2 having the shape extends from the user's eye Ea to the corner of the eye Eb in the X direction, covers the portion A under the user's eyes, and covers the user's eye Eb in the Y direction. It extends so as to cover the part B including the user's eyes.

  The mask 10 including the thermal makeup tool 1 of the present embodiment configured as described above is folded in two along the center line CL so that the pair of thermal makeup tools 1 and 1 overlap each other before use. Thus, the heating element 2 of the thermal cosmetic device 1 is prevented from coming into contact with oxygen in the air.

  When the mask 10 is used, the mask is formed by passing the ear through the cut-out opening of the ear hook 14 of the mask 10 so that the liquid holding sheet 4 of each of the thermal makeup tools 1 and 1 contacts the user's skin. 10 is fixed on a user's face so that the circumference | surroundings of a user's both eyes may be covered. As described above, the thermal makeup tool 1 is arranged along the peripheral edges of the openings 12 of the mask body 11 in the portions R corresponding to the eyes of the eyes of the user on the skin contact surface 11a of the mask body 11. Therefore, when the mask 10 is fixed on the user's face so as to cover the user's eyes by the ear hooks 14, the heating element 2 of the thermal cosmetic device 1 is as shown in FIG. In addition, when the thermal cosmetic tool 1 is used, it is arranged from a part A under the user's eyes to a part B including the user's eye corners, and the constricted part 21 of the side part 2c corresponds to the top of the user's cheekbone C. Arranged.

  Next, another embodiment of the thermal cosmetic tool of the present invention will be described. As shown in FIG. 4, the thermal makeup tool 1 of the present embodiment has a substantially L shape in plan view. The thermal cosmetic tool 1 according to the present embodiment includes a flat heating element 2, a container 3 that covers the entire surface of the heating element 2, and a liquid holding member disposed on the outer surface of one surface 3a of the container 3. And a sheet 4. As shown in FIG. 4, the heating element 2 has a constricted portion 21 at the central portion 2 e of each of the side portions 2 c and 2 d in the plan view. In the present embodiment, both side portions 2c and 2d of the heating element 2 are formed so as to draw a substantially S-shaped curve, as shown in FIG.

  It is preferable that the thermal cosmetic tool 1 of the present embodiment is also arranged and used on the mask main body 11 like the thermal cosmetic tool of the above-described embodiment. Specifically, as shown in FIG. 5, the user on the skin contact surface 11 a of the mask body 11 is placed on the thermal makeup tool 1 so that the side 2 c of the heating element 2 is closer to the eyes of the user. It arrange | positions to the part R corresponding to each eye | corner of both eyes. The mask 10 provided with the present embodiment has a constricted portion of the heating element 1 at a portion that comes into contact with the cheekbone portion of the thermal cosmetic device 1 when the mask 10 is mounted because the heating element 2 has the shape described above. 21 will be arranged. Therefore, since the heat generating body 2 does not exist in the site | part contact | abutted to a cheekbone part, it can reduce that a cheekbone part turns red with a heat | fever.

  Next, still another embodiment of the thermal cosmetic tool of the present invention will be described. As shown in FIG. 6, the thermal makeup tool 1 of the present embodiment has a substantially crescent shape in which each end is rounded in a plan view. The thermal cosmetic tool 1 of the present embodiment is arranged on the outer surface of the flat heating element 2, the container 3 covering the entire surface including each surface of the heating element 2, and the one surface 3a of the container 3. 3 and a liquid holding sheet 4 having substantially the same shape. As shown in FIG. 6, the heating element 2, the container 3, and the liquid holding sheet 4 constituting the thermal makeup tool 1 of the present embodiment have a substantially crescent shape with rounded ends (thermal makeup). The tool 1 is fixed to the mask body 11 at the joint portions 3d located at both ends of the crescent moon.

  It is preferable that the thermal cosmetic tool 1 of the present embodiment is also arranged and used on the mask main body 11 like the thermal cosmetic tool of the above-described embodiment. Specifically, as shown in FIG. 6, the user on the skin contact surface 11 a of the mask body 11 is placed on the thermal makeup tool 1 so that the side 2 c of the heating element 2 is closer to the eyes of the user. It arrange | positions to the part R corresponding to each eye | corner of both eyes.

  As shown in FIG. 6, the mask main body 11 on which the thermal makeup tool 1 of the present embodiment is disposed covers a region from the forehead (eyebrow) to the nose tip in the Y direction, and between the cheeks in the X direction. It is sized and shaped to cover this part. The mask body 11 has an upper side and a lower side extending in the X direction, and two side sides extending in the Y direction and continuous with the upper side and the lower side. The upper side is a gentle curve that protrudes upward when the direction of the face of the face is upward and the direction of the nose of the face is downward (hereinafter, the terms are upward and downward). I am doing. The lower side is a curved line that protrudes upward, and has a cutout that becomes the cutout portion 13 at a substantially central portion thereof. The two side edges are smoothly connected to the upper side and the lower side, respectively. Then, the two side sides approach the lower side, and therefore approach the X direction center of the mask body 11.

  The mask body 11 has openings 12 and 12 formed by cutting out portions corresponding to both eyes of the user, and a cutout portion 13 formed by cutting out portions corresponding to the user's nose. is doing. Furthermore, it has a pair of ear-hooking parts 14 and 14 which put an ear in use. The ear hooking portion 14 is formed by cutting out a portion corresponding to the position of the user's ear in the extending portion extending outward in the X direction from the thermal makeup tool 1 arranged on the mask main body 11. In the mask main body 11 on which the thermal makeup tool 1 of the present embodiment is arranged, the ear hooking portion 14 has a semi-elliptical shape, and the strings are arranged so as to face the center of the mask main body 11. The mask main body 11 on which the thermal makeup tool 1 of the present embodiment is arranged has an effect that it is closely attached to the eyes without a gap regardless of the shape of the face.

  In addition, regarding the mask provided with the other embodiment of the above-described thermal makeup tool of the present invention, the description regarding the thermal makeup tool and the mask described first is appropriately applied to points that are not particularly described.

  As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment. For example, in the above-described embodiment, the form in which the thermal cosmetic tool is attached to the mask 10 has been described. Instead, the thermal cosmetic tool itself is provided with an attachment member, and the thermal makeup tool is used by the attachment member. It may be attached to a person's body.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples. Unless otherwise specified, “%” and “part” mean “% by mass” and “part by mass”, respectively.

[Example 1]
A thermal cosmetic tool having the form shown in FIG. 1 was produced by the following procedure.

<Production of molded sheet>
<Combination of raw material composition>
・ Oxidizable metal: Iron powder, manufactured by Dowa Mining Co., Ltd., trade name “RKH”: 84%
-Fibrous material: Pulp fiber (Fletcher Challenge Canada, trade name NBKP “Mackenzi (adjusted to CSF 200 ml)”): 8%
Activated carbon: average particle size 45 μm, (Nippon Enviro Chemical Co., Ltd., trade name “Carborafyn”) 8%
Polyamide epichlorohydrin resin (Seiko PMC Co., Ltd., trade name “WS4020”) which is a cationic flocculant with respect to 100 parts of the solid content (total of oxidizable metal, fibrous material and activated carbon) of the raw material composition ) 0.7 part and 0.18 part of carboxymethylcellulose sodium (Daiichi Kogyo Seiyaku Co., Ltd., trade name “HE1500F”) which is an anionic flocculant. It added until it became 12%, and the slurry was obtained.
<Making conditions>
Using the slurry, it was diluted with water to 0.3% just before the paper making head, and paper was made at a line speed of 15 m / min with an inclined short paper machine to produce a wet shaped sheet.
<Drying conditions>
The molded sheet was sandwiched with felt and dehydrated under pressure, passed through a heating roll at 140 ° C. as it was, and dried until the water content became 5% or less. The basis weight after drying was 450 g / m ² and the thickness was 0.45 mm. The composition of the molded sheet thus obtained was measured using a thermogravimetric measuring apparatus (Seiko Instruments Inc., TG / DTA6200), and as a result, was iron 84%, activated carbon 8%, and pulp 8%.

<Production of heating element>
A sheet-like heating element was produced by adding 43 parts of salt water having a concentration of 5% to 100 parts of the molded sheet (20.4 cm ² ) that had been die-cut. A stretched porous polyethylene moisture-permeable film containing calcium carbonate having an air permeability of about 3000 seconds / 100 cm ³ is used as the second covering sheet, and a water-impermeable sheet made of a polyethylene film having a basis weight of 35 g / m ² is used. A container was prepared using 1 as the covering sheet. One obtained heating element was accommodated in the container.

<Production of thermal makeup tools>
A spunlace nonwoven fabric with a basis weight of 50 g / m ² (thickness) consisting of 30 parts of core-sheath type composite fiber having a fineness of 3.3 dtex, whose core is made of polyethylene terephthalate (PET), and whose sheath is made of polyethylene (PE), and 70 parts of cotton. 400 μm) was superimposed on the first covering sheet, and the nonwoven fabric and the first covering sheet were joined at the joint portion 3d shown in FIG. This nonwoven fabric was substantially the same shape as the first covering sheet. The nonwoven fabric was impregnated with the liquid preparation 1 having the composition shown in Table 1 below. The amount of impregnation was 920 parts with respect to 100 parts of the nonwoven fabric. In this way, a thermal makeup tool was obtained.

With respect to the obtained thermal cosmetic tool, the amount of movement of the liquid preparation impregnated in the liquid holding member made of non-woven fabric was measured by the above-mentioned method and found to be 3.75 μg / cm ² . Here, when measuring the movement amount, the liquid holding member and the high-quality paper to be overlapped have the same shape. Moreover, this thermal makeup tool was attached to the mask 10 shown in FIG. 2, and this mask 10 was attached to 10 female subjects (ages 30-50) as shown in FIG. Under this condition, the time during which the thermal cosmetic tool kept the user's skin temperature in the range of 38 to 42 ° C. was measured by the above-mentioned method, and was 12 minutes on average. The highest skin temperature reached 41 ° C. Further, when the time from the start of heat generation until the skin temperature decreased to less than 38 ° C. was measured, the average was 14 minutes. After confirming that the skin temperature was less than 38, the mask 10 was removed from the subject, and the water content in the stratum corneum of the skin where the thermal cosmetic tool was in contact was determined using a confocal microscopic Raman apparatus (Tokyo Co., Ltd.). Measurement was carried out using a nano finder 30) manufactured by Instruments. As a result, the water content was 2.2 on average (relative value to the water content of the stratum corneum before wearing the thermal cosmetic tool; N = 3, (measured 4 times each)).

The above-mentioned thermal makeup tool was used by the subject three times a week, and the effect of improving fine lines in the corners of the eyes and deep wrinkles in the corners of the eyes was verified. The state before verification was set to 0, and the effect of improving wrinkles was evaluated by a specialized panel through a five-step evaluation from -2 to +2. The evaluation criteria are as follows. Comparison was made when only the liquid preparation was used. These results are shown in FIG. As is apparent from the results shown in FIG. 7, it can be seen that the effect of improving wrinkles is clearly exhibited by using the thermal cosmetic tool of the present invention.
+2: Clearly improved +1: Improved 0: No change -1: Deteriorated -2: Obviously deteriorated

[Examples 2 to 5 and Comparative Examples 1 and 2]
Under the conditions shown in Table 2, a thermal cosmetic tool was obtained in the same manner as in Example 1. About the obtained thermal cosmetic tool, the moisture content of the stratum corneum and the moist feeling of the skin were evaluated. The results are shown in Table 2. The water content of the stratum corneum was measured in the same manner as in Example 1. The moist feeling of the skin is evaluated by removing the thermal makeup tool after the skin temperature drops below 38 ° C and letting a specialized panelist judge the condition of the area around the eyes when 30 minutes have passed, according to the following criteria. did.
Moist ... 5 points Moist ... 4 points Neither ... 3 points not too moist ... 2 points not moist ... 1 point

Example 6
In this example, a simulation experiment was conducted to examine changes in the amount of moisture transferred from the thermal cosmetic device to the skin stratum corneum due to differences in skin surface temperature and temperature holding time. In the thermal cosmetic tool manufactured in Example 1, in place of the spunlace nonwoven fabric arranged on the first covering sheet, a thermal cosmetic device was used using a cotton nonwoven fabric having a basis weight of 50 g / m ² and a thickness of 0.24 mm. Manufactured. A cotton non-woven fabric was cut out from the thermal cosmetic tool, and 1250 parts of the liquid preparation having the same composition as in Example 1 was impregnated into 100 parts of the non-woven fabric. A rubber heater was placed on this nonwoven fabric, and the amount of liquid formulation transferred was measured by the method described above, and found to be 4 μg / cm ² . 1 cm ² of this nonwoven fabric was brought into contact with the right arm forearm flexion side of six female subjects (age 30-50s) in an environment of 25 ° C. and 40% RH, and a rubber heater was placed thereon. The skin surface temperature and holding time of the contact part were kept at the skin surface temperature and holding time shown in Table 3 with a rubber heater. Thereafter, the nonwoven fabric and the rubber heater were removed, and the moisture content of the skin stratum corneum at the contact portion was measured four times using a confocal Raman spectroscope (Nanofinder 30 manufactured by Tokyo Instruments Inc.), and the average value was calculated. Calculated. The water content is a numerical value converted into a relative value based on the measured value of the stratum corneum water content before contact with the liquid preparation. The results are shown in Table 3. As shown in Table 3, even when the skin surface temperature is low (32 ° C.), sufficient moisture can be transferred to the skin stratum corneum. It was. On the other hand, when the skin surface temperature was high (39 ° C., 40 ° C.), sufficient water could be transferred to the skin stratum corneum in a short time.

Example 7
A thermal cosmetic device was obtained in the same manner as in Example 1 except that 950 parts of the liquid preparation 2 shown in Table 4 was impregnated with 100 parts of the nonwoven fabric. About the obtained thermal cosmetic tool, the movement amount of the liquid formulation impregnated in the nonwoven fabric was measured by the above-mentioned method. The results are shown in Table 4. This thermal makeup tool was attached to the mask 10 shown in FIG. 2, and this mask 10 was attached to the periphery of the eyes of six female subjects (ages 30-50) as shown in FIG. Under this condition, the time during which the thermal cosmetic tool kept the user's skin temperature in the range of 38 to 42 ° C. was measured by the above-mentioned method, and it was 10 minutes on average. The highest skin temperature reached 41.7 ° C. Further, when the time from the start of heat generation until the skin temperature decreased to less than 38 ° C. was measured, it was 12 minutes on average. Furthermore, the expert panelist evaluated the moist feeling of the skin based on the above-mentioned criteria. The results are shown in Table 4.

DESCRIPTION OF SYMBOLS 1 Thermal cosmetic tool 2 Heat generating body 3 Container 4 Liquid holding sheet 10 Mask 11 Mask main body 12 Opening part 13 Notch part 14 Ear hook part

Claims (7)

A thermal cosmetic device comprising a heating element, a liquid holding member disposed adjacent to the heating element, and a liquid preparation impregnated in the liquid holding member, the amount of movement of the liquid preparation from the cosmetic tool However, a thermal cosmetic device having a value measured by the following method of 3 to 4.5 μg / cm ² .
[Transfer amount of liquid preparation]
Measured in an environment of 25 ° C and 40% RH. Place the high-quality paper on a horizontal and flat table, on which the thermal cosmetic tool having the liquid holding member impregnated with the liquid preparation is placed so that the liquid holding member faces the high-quality paper. Place. A pressure of 1.5 g / cm ² is applied to the entire warm cosmetic device, and this state is maintained for 5 seconds. After 5 seconds, the thermal makeup tool is removed and the mass of the fine paper is measured. A value (μg / cm ² ) obtained by dividing the mass increase of the fine paper by the area of the liquid holding member is taken as the amount of movement of the liquid preparation from the cosmetic device.   The time for maintaining the skin temperature in the range of 38 to 42 ° C. in a state where the thermal cosmetic tool is in contact with the skin is 5 to 30 minutes in an environment of 25 ° C. and 40% RH, and under the same environment The thermal cosmetic device according to claim 1, which has exothermic characteristics that do not heat the skin temperature to more than 42 ° C.   The thermal cosmetic device according to claim 2, wherein the time until the skin temperature decreases to less than 38 ° C from the start of heat generation has a heat generation characteristic of 5 to 40 minutes in an environment of 25 ° C and 40% RH. .   The heating element is accommodated in a container formed by joining peripheral areas of a water-impermeable sheet and a gas-permeable sheet, and the liquid holding member is disposed on an outer surface of the water-impermeable sheet. Item 4. The thermal cosmetic tool according to any one of Items 1 to 3.   The thermal cosmetic device according to any one of claims 1 to 4, wherein 800 to 1500 parts by mass of the liquid preparation is held with respect to 100 parts by mass of the liquid holding member.   The thermal cosmetic device according to any one of claims 1 to 5, wherein the liquid preparation is an aqueous liquid containing glycerin. A makeup method for beauty using the thermal makeup tool according to claim 1,
Causing the heating element to generate heat, and bringing the liquid holding member impregnated with the liquid preparation into contact with the skin, allowing the liquid preparation to migrate to and penetrate into the skin under a heated condition;
Continue contacting the liquid holding member to the skin until the skin temperature drops to 38 ° C.,
A cosmetic method for separating the liquid holding member from the skin when the skin temperature is lower than 38 ° C.

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