Beauty mask

Abstract

The present invention aims to provide a beauty mask that generates carbon dioxide gas, which maintains the acid and carbonate in an unreacted and stable state before use, and which conforms well to the uneven shape of the user's face. The beauty mask 1 according to the present invention comprises a base sheet 2 formed from a single nonwoven fabric, and an acid and a carbonate. The acid and carbonate are arranged on the base sheet 2 in such a manner that they do not overlap on the inner surface 1b, which is one of the main surfaces of the base sheet 2, and / or the outer surface 1a, which is the main surface opposite the inner surface 1b.

Description

[Technical Field]

[0001] This invention relates to a beauty mask that generates carbon dioxide gas, which is effective for skin beautification. [Background technology]

[0002] It has long been known that carbon dioxide has beneficial effects for beauty (hereinafter referred to as "beauty effects"). Specifically, carbon dioxide acts on cells near the skin, dilating blood vessels, promoting blood flow, and increasing oxygen supply to cells. Beauty masks that generate carbon dioxide when worn on the user's face (hereinafter referred to as "beauty masks" or "masks") are known. Such masks utilize the beauty effects of carbon dioxide and also aim to enhance the effects of beauty ingredients such as beauty serums.

[0003] In such masks, carbon dioxide is generated by the reaction of acid and carbonate. It is important that the acid and carbonate remain unreacted before the mask is used. In this regard, for example, a technology has been proposed in which the mask is composed of three nonwoven fabrics, with the first nonwoven fabric containing acid, the second nonwoven fabric containing carbonate, and the third nonwoven fabric placed between the first and second nonwoven fabrics. When the user impregnates the mask with a beauty serum or similar product, the acid and carbonate react and generate carbon dioxide. (For example, Patent Document 1). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Patent No. 5689513 [Overview of the project] [Problems that the invention aims to solve]

[0005] As described in Patent Document 1, it is possible to form a mask using multiple layers of nonwoven fabric to prevent the acid and carbonate from reacting before use, thus maintaining an unreacted and stable state. However, using multiple layers of nonwoven fabric makes the mask thicker, which reduces its ability to conform to the contours of the user's face and decreases its airtightness. As a result, there is a problem in that the beauty effects of carbon dioxide gas and the beauty effects of the beauty serum are reduced.

[0006] Based on the above, the present invention provides a beauty mask that generates carbon dioxide gas, which maintains the acid and carbonate in an unreacted and stable state before use, and which has good conformability to the uneven shape of the user's face. [Means for solving the problem]

[0007] The first invention is a beauty mask that generates carbon dioxide gas, comprising a base sheet formed from a single nonwoven fabric, and containing an acid and a carbonate, wherein the acid and the carbonate are arranged on the base sheet in such a manner that they do not overlap on the inner surface which is one of the main surfaces of the base sheet and / or the outer surface which is the main surface opposite to the inner surface.

[0008] According to the configuration of the first invention, the acid and carbonate are arranged on the inner and / or outer surfaces of a base sheet made of a single nonwoven fabric in a manner that does not overlap. Therefore, when no liquid cosmetic composition such as a cosmetic liquid or serum (hereinafter referred to as "cosmetic composition") is applied to the base sheet, the acid and carbonate remain in an unreacted and stable state. When the user applies the cosmetic composition to the base sheet, the acid and carbonate react, generating carbon dioxide gas. Since the base sheet of the first invention is made of a single nonwoven fabric, it is thinner than a beauty mask in which the acid and carbonate are arranged on separate nonwoven fabrics. Therefore, the beauty mask can conform well to the contours of the user's face.

[0009] The second invention is a beauty mask in which, in the configuration of the first invention, a blank region is formed between the acid region, which is the region where the acid is located, and the carbonate region, which is the region where the carbonate is located, on the inner surface and / or the outer surface, in which neither the acid nor the carbonate is located.

[0010] According to the configuration of the second invention, the acid region and the carbonate region are reliably separated by the blank region, thus ensuring that the stable unreacted state of the carbonate and acid is maintained.

[0011] The third invention is a beauty mask in which, in the configuration of the first invention or the configuration of the second invention, the acid and the carbonate are arranged in relatively larger quantities in the thickness direction of the base sheet, closer to the inner surface than further away from the inner surface.

[0012] According to the configuration of the third invention, the acid and carbonate are arranged in larger quantities closer to the inner surface of the base sheet than further away from it. Therefore, when the cosmetic composition is applied to the inner surface of the base sheet, a relatively large amount of carbon dioxide is generated relatively quickly near the user's face. As a result, the beauty mask quickly exerts its cosmetic effects through carbon dioxide.

[0013] The fourth invention is a beauty mask in which, in the configuration of the first invention or the configuration of the second invention, the acid and the carbonate are arranged in relatively larger amounts in the thickness direction of the base sheet at positions closer to the outer surface than at positions further from the outer surface.

[0014] According to the configuration of the fourth invention, since the acid and carbonate are arranged in large quantities near the outer surface, when the cosmetic composition is applied to the inner surface, first, the relatively small amount of acid and carbonate arranged farther from the outer surface, i.e., closer to the inner surface, reacts to generate a relatively small amount of carbon dioxide, which provides a relatively mild stimulation to the user's face and can gradually activate the cells near the user's face. Then, with a time delay, when the liquid reaches a position closer to the outer surface, the relatively large amount of acid and carbonate arranged closer to the outer surface reacts to generate a relatively large amount of carbon dioxide, which can sufficiently activate the cells near the user's face. In other words, the beauty mask can gradually exert a beauty effect on the cells near the user's face.

[0015] The fifth invention is a beauty mask in which, in the configuration of the first or second invention, when the amount of the acid in the ratio of the acid and the carbonate that most effectively generates carbon dioxide through reaction is defined as the first amount, the amount of the acid placed in the mask is less than the first amount.

[0016] Generally, cosmetic compositions such as lotions and serums are acidic. In this regard, according to the composition of the beauty mask of the fifth invention, by supplementing the acidic function of the acidic component of the cosmetic composition, the amount of acid can be reduced relative to the theoretically necessary ratio of acid and carbonate for carbon dioxide generation. This reduces the amount of acid placed in the beauty mask, contributing to resource conservation and also reducing the manufacturing cost of the beauty mask.

[0017] The sixth invention is a beauty mask in which, in the configuration of the first or second invention, a restricting layer is provided on the outer surface, which is a layer for restricting the passage of liquids and gases.

[0018] According to the configuration of the sixth invention, since carbon dioxide is not discharged to the outside from the outer surface, a relatively large amount of carbon dioxide remains between the beauty mask and the user's face, continuously activating the cells near the user's face.

[0019] The seventh invention is a configuration of the first or second invention in which, in chronological order, the time when the user applies the liquid cosmetic composition to the inner surface of the beauty mask is defined as the start time t0, the time when the user finishes wearing the beauty mask is defined as the wearing time t3, the time midway between the start time t0 and the wearing time t3 is defined as the intermediate time t2, and the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0, is defined as the initial time t1, and the total amount of the acid placed in the acid region and the amount placed in the carbonate region within a closed system with a capacity of 1000 milliliters (ml) The beauty mask is defined as the distance over which, in measuring the cumulative amount of carbon dioxide generated from the beauty mask in a closed system, the concentration of carbon dioxide generated from the beauty mask reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and the generation of carbon dioxide continues until the application time t3.

[0020] The inventors of the present invention have conceived a technical concept for controlling the amount of carbon dioxide generated over time (time series) from the start to the end of use of a beauty mask. Specifically, they have conceived a technical concept for generating an amount of carbon dioxide close to the maximum concentration at the initial stage (initial time t1) when the user starts using the beauty mask, and then continuing to generate carbon dioxide until the end of use. According to the configuration of the seventh invention, the above technical concept can be realized by having the carbon dioxide concentration reach 70% to 90% of the maximum concentration at the initial time t1, reach 85% to 95% of the maximum concentration at the intermediate time t2, and then continuing to generate carbon dioxide until the application time t3.

[0021] The eighth invention is in the configuration of the first invention or the second invention. When a liquid cosmetic composition is applied to the inner surface of the beauty mask by the user in chronological order, the start time t0 is set. The time when the user finishes wearing the beauty mask is the wearing time t3. The time in the middle between the start time t0 and the wearing time t3 is the intermediate time t2. The time between the start time t0 and the intermediate time t2, and the time after 1 minute has elapsed from the start time t0 is the initial time t1. The concentration of the carbon dioxide gas generated by the total amount of the acid disposed in the acid region and the total amount of the carbonate disposed in the carbonate region in a closed system with a volume of 1000 milliliters (ml) is set as the maximum concentration. When the total area of the acid region and the total area of the carbonate region are constant, the shortest distance between the adjacent acid region and carbonate region is such that the concentration of the carbon dioxide gas generated between the start time t0 and the initial time t1 is 70% or more and 90% or less of the maximum concentration (first concentration), the concentration of the carbon dioxide gas generated between the initial time t1 and the intermediate time t2 is 15% or more and 30% or less of the maximum concentration (second concentration), the sum of the first concentration and the second concentration is less than 100%, and it is defined as the distance over which carbon dioxide gas generation continues until the wearing time t3. It is a beauty mask.

[0022] According to the configuration of the eighth invention, the shortest distance between the adjacent (adjacent) acid region and carbonate region is defined such that the concentration of the carbon dioxide gas generated from the beauty mask between the start time t0 and the initial time t1 is 70% or more and 90% or less of the maximum concentration. And the above distance is defined such that the concentration of the carbon dioxide gas generated between the initial time t1 and the intermediate time t2 is 15% or more and 30% or less of the maximum concentration. Furthermore, the above distance is defined such that carbon dioxide gas continuously generates from the beauty mask until the wearing time t3.

[0023] The ninth invention is in the configuration of the first invention or the second invention. When a liquid cosmetic composition is applied to the inner surface of the beauty mask by a user in time series, the start time t0 is set. The time when the user finishes wearing the beauty mask is set as the wearing time t3, and the time in the middle of the start time t0 and the wearing time t3 is set as the intermediate time t2. The time between the start time t0 and the intermediate time t2, and the time after 1 minute has elapsed from the start time t0 is set as the initial time t1. The maximum concentration is the concentration of the carbon dioxide gas generated by the total amount of the acid disposed in the acid region and the total amount of the carbonate disposed in the carbonate region in a closed system with a volume of 1000 milliliters (ml). When the shortest distance between the adjacent acid region and the carbonate region is constant, the width of the acid region and the width of the carbonate region are such that the concentration as the cumulative value of the carbon dioxide gas generated from the beauty mask in the closed system reaches 70% or more and 90% or less of the maximum concentration at the initial time t1, reaches 85% or more and 95% or less of the maximum concentration at the intermediate time t2, and the generation of carbon dioxide gas continues until the wearing time t3. It is a beauty mask defined as the width.

[0024] According to the configuration of the ninth invention, the amount of carbon dioxide gas generated from the beauty mask in time series can be controlled by the width of the acid region and the width of the carbonate region (hereinafter also referred to as "each width"). That is, it is defined such that the carbon dioxide gas concentration in the closed system becomes 70% or more and 90% or less of the maximum concentration between the start time t0 and the initial time t1, and becomes 85% or more and 95% or less of the maximum concentration between the initial time and the intermediate time t2. Further, each width is defined such that carbon dioxide gas continuously generates from the beauty mask until the wearing time t3.

[0025] The tenth invention relates to the configuration of the first or second invention, wherein the start time t0 is defined as the time when the user applies the liquid cosmetic composition to the inner surface of the beauty mask in a time series, the application time t3 is defined as the time when the user finishes applying the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0, and the total amount of the acid placed in the acid region and the total amount of the carbonate placed in the carbonate region within a closed system with a capacity of 1000 milliliters (ml) This is a beauty mask in which, when the concentration of carbon dioxide gas generated is defined as the maximum concentration, and the shortest distance between adjacent acid regions and carbonate regions is kept constant, the width of the acid region and the width of the carbonate region are defined as the width in which the generation of carbon dioxide gas continues until the application time t3, with the concentration of carbon dioxide gas generated between the start time t0 and the initial time t1 being 70% to 90% of the maximum concentration (first concentration), the concentration of carbon dioxide gas generated between the initial time t1 and the intermediate time t2 being 15% to 30% of the maximum concentration (second concentration), the sum of the first concentration and the second concentration being less than 100%, and the generation of carbon dioxide gas continuing until the application time t3.

[0026] According to the configuration of the tenth invention, the concentration of carbon dioxide generated from the beauty mask between the start time t0 and the initial time t1 is 70% to 90% of the maximum concentration, the concentration of carbon dioxide generated from the beauty mask between the initial time t1 and the intermediate time t2 is 15% to 30% of the maximum concentration, and thereafter, the width of the acid region and the width of the carbonate region are defined such that carbon dioxide is continuously generated until the application time t3.

[0027] The eleventh invention relates to the configuration of the first or second invention, wherein the time when the user applies the liquid cosmetic composition to the inner surface of the beauty mask is defined as the start time t0, the time when the user finishes wearing the beauty mask is defined as the wearing time t3, the time midway between the start time t0 and the wearing time t3 is defined as the intermediate time t2, and the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0, is defined as the initial time t1, and before being placed in the acid region within a closed system with a capacity of 1000 milliliters (ml) The beauty mask is such that, when the concentration of carbon dioxide generated by the total amount of the acid and the total amount of the carbonate arranged in the carbonate region is defined as the maximum concentration, the shortest distance between adjacent acid regions and carbonate regions, the width of the acid region, and the width of the carbonate region are defined as the width within which the cumulative concentration of carbon dioxide generated from the beauty mask in a closed system reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the application time t3.

[0028] According to the configuration of the eleventh invention, the width of the acid region, the width of the carbonate region, and the shortest distance between the acid region and the carbonate region are defined as widths that control the manner in which carbon dioxide is generated from the beauty mask. That is, the concentration of carbon dioxide generated from the beauty mask in a closed system is defined to reach 70% to 90% of the maximum concentration at an initial time t1, and to reach 85% to 95% of the maximum concentration at an intermediate time t2. Furthermore, each of the above widths and the shortest distance is defined to continuously generate carbon dioxide until the application time t3. [Effects of the Invention]

[0029] The present invention provides a beauty mask that generates carbon dioxide gas, which maintains the acid and carbonate in an unreacted and stable state before use, and which conforms well to the contours of the user's face. [Brief explanation of the drawing]

[0030] [Figure 1] This figure shows the outer surface of a beauty mask according to the first embodiment of the present invention. [Figure 2] This is a diagram showing the inside of a beauty mask. [Figure 3] This is a conceptual diagram showing a cross-section of a beauty mask. [Figure 4] This is a conceptual diagram showing a magnified portion of the inner surface of a beauty mask. [Figure 5] This diagram shows the manner in which carbon dioxide is generated from a beauty mask. [Figure 6] This is a schematic diagram showing the user's face. [Figure 7] This is a schematic diagram showing a beauty mask being worn on the user's face. [Figure 8] This is a schematic diagram showing a beauty mask being worn on the user's face. [Figure 9] This is a diagram showing the test specimens from Experiment 1. [Figure 10] This is a diagram showing the test specimens from Experiment 1. [Figure 11] This figure shows the test results from Experiment 1. [Figure 12] This is a diagram showing the test specimens for Experiment 2. [Figure 13] This figure shows the test results from Experiment 2. [Figure 14] This figure shows the test specimen for Experiment 3 according to the second embodiment. [Figure 15] This figure shows the test specimen for Experiment 3 according to the second embodiment. [Figure 16] This figure shows the test results for Experiment 3. [Figure 17] This is a diagram showing the test specimens for Experiment 4. [Figure 18] This figure shows the test results of Experiment 4. [Figure 19] This figure shows the test specimens, etc., for Experiment 5 according to the third embodiment. [Figure 20] This figure shows the test results for Experiment 5. [Figure 21] This figure shows the inner surface of a beauty mask according to the fourth embodiment. [Figure 22]This is a conceptual diagram showing a cross-section of a beauty mask. [Figure 23] This is a conceptual diagram showing a magnified portion of the inner surface of a beauty mask. [Figure 24] This figure shows the inner surface of a beauty mask according to the fifth embodiment. [Figure 25] This is a conceptual diagram showing a magnified portion of the inner surface of a beauty mask. [Modes for carrying out the invention]

[0031] Hereinafter, preferred embodiments of the present invention will be described based on the drawings. Configurations that can be appropriately implemented by those skilled in the art will be omitted from the description, and only the basic configuration of the present invention will be described.

[0032] <First Embodiment> Hereinafter, preferred embodiments of the present invention will be described based on the drawings. Configurations that can be appropriately implemented by those skilled in the art will be omitted from the description, and only the basic configuration of the present invention will be described.

[0033] As shown in Figures 1 and 2, the beauty mask 1 (hereinafter referred to as "mask 1") is formed from a single base sheet 2. Mask 1 is a beauty mask for the face of user 200 (see Figure 6). The base sheet 2 is formed from a single nonwoven fabric. The material of the nonwoven fabric is, for example, polyester, nylon, polyethylene, polypropylene, polyvinyl alcohol, cotton, cupro, rayon, pulp, etc., but is not limited to these. The base sheet 2 is made of a material with a basis weight (mass of fabric per area) within a predetermined range. A basis weight within the predetermined range is, for example, 30 grams per square meter (g / m²). 2 ) 70 grams (g / m²) or more 2 ) or less, and in this embodiment, the material of the nonwoven fabric is polyester, and the basis weight is 40 grams per square meter (g / m²). 2 The specifications of the nonwoven fabric used in all embodiments described herein and in Experiments 1 to 5 described below are the same as the specifications of the base sheet 2 described above.

[0034] Mask 1 does not contain any liquid cosmetic composition such as a serum at the time of its manufacture and sale. Mask 1 is configured to generate carbon dioxide gas when the user applies, sprays, or impregnates (in this specification, application, spraying, or impregnation are collectively referred to as "application") a cosmetic composition to Mask 1 immediately before applying it to their face.

[0035] Here, we will explain the cosmetic composition. The main component of the cosmetic composition is water, and it also contains at least one of the following beauty ingredients. Beauty ingredients include, for example, human oligopeptide-1, human oligopeptide-13, acetyl hexapeptide-8, palmitoyl pentapeptide-4, water-soluble collagen, hydrolyzed collagen, succinoyl atelocollagen, magnesium ascorbyl phosphate, saccharomyces (brown sugar, placenta extract) ferment filtrate, sodium hyaluronate, sodium acetylated hyaluronate, sodium hyaluronate crosspolymer, cerebroside, arbutin, magnesium aspartate, and glycyrrhizate. The ingredients are dipotassium lysate, copper gluconate, zinc gluconate, placenta extract, umbilical cord extract, water-soluble proteoglycan, platinum, sake lees extract, Rhodiola rosea root extract, apple fruit cell culture extract, vitamin A oil, tocopherol, Saccharomyces cerevisiae extract, cerebroside, PCA-Na, natto gum, avocado oil, rosehip fruit oil, apricot kernel oil, sunflower seed oil, sodium dilauroyl glutamate lysine, aminocaproic acid, and betaine. Cosmetic compositions composed of the above ingredients are generally acidic.

[0036] When mask 1 is used, the outer surface 1a shown in Figure 1 faces outwards, and the inner surface 1b shown in Figure 2 contacts the face of the user 200 (see Figure 6). Mask 1 is configured to cover the entire face of the user 200 (see Figures 7 and 8).

[0037] <<Overview of the arrangement of acids and carbonates in the substrate sheet>> The base sheet 2 contains an acid and a carbonate. As shown in Figure 2, the acid and carbonate are arranged on one of the main surfaces of the base sheet 2, the inner surface 1b, in a manner that they do not overlap with each other. The inner surface 1b is the surface that comes into contact with the face of the user 200 when the mask 1 is worn on the user's face (see Figures 7 and 8).

[0038] For example, the acid is citric acid and the carbonate is sodium bicarbonate (baking soda). However, the acid and carbonate are not limited to these. For example, the carbonate may be sodium carbonate (soda ash). Unlike this embodiment, the acid and carbonate may be arranged on the outer surface 1a (see Figure 1), or on both the inner surface 1b and the outer surface 1a.

[0039] As shown in Figure 2, in the inner surface 1b, the acid region 30A, where the acid is located, and the carbonate region 30B, where the carbonate is located, are arranged in a manner that they do not overlap. Between the acid region 30A and the carbonate region 30B, a blank region 30C is formed in which neither the acid nor the carbonate is located.

[0040] Figure 3(a) is a schematic cross-sectional view of mask 1 in Figure 2 along line AA. Figure 3(b) is a conceptual, enlarged view of the acid region 30A and carbonate region 30B shown in Figure 3(a). In Figure 3(b), acid particles are represented as particle 30Aa and carbonate particles as 30Ba.

[0041] As shown in Figure 3(b), in the acid region 30A, a relatively large amount of acid particles 30Aa are located in the thickness direction of the base sheet 2 at positions closer to the inner surface 1b than at positions further from the inner surface 1b (positions on the outer surface 1a side). Specifically, the closer to the inner surface 1b, the larger the amount of acid particles 30Aa. Similarly, in the carbonate region 30B, a relatively large amount of carbonate particles 30Ba are located in the thickness direction of the base sheet 2 at positions closer to the inner surface 1b than at positions further from the inner surface 1b (positions on the outer surface 1a side). Specifically, the closer to the inner surface 1b, the larger the amount of carbonate particles 30Ba.

[0042] <<Ratio of acid to carbonate>> The acid and carbonate are arranged in the proportion required for them to react completely and produce carbon dioxide (hereinafter referred to as the "theoretical proportion"). For example, if citric acid is used as the acid and baking soda as the carbonate, the theoretical proportion is 1:3 in terms of the number of molecules of the acid to the carbonate. In other words, the first quantity is in a ratio of 1 molecule of acid to 3 molecules of carbonate. In terms of mass ratio, for example, it is 2.0 grams (g) of acid to 2.5 grams (g) of carbonate.

[0043] Unlike this embodiment, when the amount of acid in the theoretical proportion is considered to be the first amount, the amount of acid placed on mask 1 may be less than the first amount. That is, the amount of acid placed on mask 1 may be smaller than the theoretical proportion in terms of the ratio of the number of molecules and also smaller than the theoretical proportion in terms of the ratio of mass. The inventors of this invention focused on the fact that the cosmetic composition applied to mask 1 by the user when mask 1 is used exhibits acidity, and came up with a configuration in which the cosmetic composition supplements part of the function of acid.

[0044] <<Details of the arrangement of acid and carbonate in the base sheet>> Figure 4 is a conceptual diagram showing an enlarged portion of the inner surface 1b of mask 1, illustrating the positional relationship between the acid region 30A and the carbonate region 30B. As shown in Figure 4, the strip-shaped acid region 30A and carbonate region 30B are arranged with a blank area in between, and their closest relative positions are designated as proximity position 30An and proximity position 30Bn, respectively.

[0045] When the total amount of acid in all acid regions 30A and the total amount of carbonate in all carbonate regions 30B are constant, the width w30A of the acid regions 30A and the width w30B of the carbonate regions 30B are constant, and the acid is distributed in substantially the same mass ratio (mass per unit area) in all acid regions 30A and the carbonate is distributed in substantially the same mass ratio in all carbonate regions 30B (hereinafter referred to as "fixed condition 1"), the characteristics of mask 1 are defined by the distance L1 between adjacent positions 30An and adjacent positions 30Bn. It is desirable that the number of acid regions 30A and the number of carbonate regions 30B are the same. However, the number of acid regions 30A and the number of carbonate regions 30B are not limited to being the same.

[0046] A key feature of mask 1 is the manner in which carbon dioxide is generated over time after the cosmetic composition is applied to mask 1 by the user 200.

[0047] In this embodiment, the width w30A of the acid region 30A and the width w30B of the carbonate region 30B are equal. The widths w30A and w30B are 10 millimeters (mm). The distance L1 is 10 millimeters (mm).

[0048] <<Methods of carbon dioxide generation>> Mask 1, under the fixed condition 1 described above, realizes a predetermined mode of carbon dioxide generation according to the distance L1 described above.

[0049] In this specification, the concentration of carbon dioxide that can be generated in a sealed region (closed system) by the total amount of acid placed in all acid regions 30A and the total amount of carbonate placed in all carbonate regions 30B is referred to as the "maximum concentration." In this specification, the sealed region (closed system) is defined as a sealed container having a capacity of 1000 milliliters (ml).

[0050] The carbon dioxide concentration generated from Mask 1 is configured to reach 70% to 95% of the maximum concentration quickly after the user 200 begins using Mask 1. Preferably, the carbon dioxide concentration generated quickly after the start of use is 70% to 90% of the maximum concentration, and more preferably, 70% to 85% of the maximum concentration. This ensures that a sufficient amount of carbon dioxide acts quickly on the user 200's face, producing a cosmetic effect. Furthermore, Mask 1 is configured to continuously generate carbon dioxide while being used by the user 200 to replenish the carbon dioxide released to the outside, thereby maintaining the cosmetic effect.

[0051] Figure 5 shows an example of a predetermined generation pattern of carbon dioxide. In a time series (chronological order), the start time t0 is defined as the time when the user 200 applies the cosmetic composition to the inner surface 1b of the mask 1, the wearing time t3 is defined as the time when the user 200 finishes wearing the mask 1, the intermediate time t2 is defined as the time midway between the start time t0 and the wearing time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0. In this embodiment, the maximum concentration of carbon dioxide generated by all the acids and carbonates placed in the mask 1 is set to 6000 PPM. The time when the user 200 finishes wearing the mask 1 (wearing time t3) is set to 10 minutes after the start time t0.

[0052] The above-described definitions of time and maximum concentration are the same in other embodiments described herein and in Experiments 1 to 5 described later.

[0053] In mask 1, the distance L1 is defined so that the carbon dioxide generated from mask 1 within the closed system behaves in a predetermined manner. Specifically, in measuring the cumulative amount of carbon dioxide generated from mask 1 within the closed system, the distance is defined as the distance at which the concentration of carbon dioxide generated from mask 1 reaches 65% to 95% of the maximum concentration at the initial time t1, reaches 75% to 95% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3. However, the maximum concentration at the initial time t1 is smaller than the maximum concentration at the intermediate time t2.

[0054] Preferably, distance L1 is defined as the distance over which the carbon dioxide gas concentration generated from mask 1 reaches 70% to 90% of the maximum concentration at initial time t1, reaches 85% to 95% of the maximum concentration at intermediate time t2, and continues to be generated until wearing time t3.

[0055] More preferably, distance L1 is defined as the distance over which the carbon dioxide concentration generated from mask 1 reaches 70% to 85% of the maximum concentration at initial time t1, reaches 85% to 90% of the maximum concentration at intermediate time t2, and continues to generate carbon dioxide until wearing time t3.

[0056] For example, as shown in Figure 5, when the cosmetic composition is applied to mask 1, the carbon dioxide concentration at the initial time t1 is 4600 PPM, which is approximately 77% of the maximum concentration. Although the carbon dioxide concentration does not reach the maximum concentration at the initial time t1, sufficient cosmetic effects can be achieved. Furthermore, the carbon dioxide concentration at the intermediate time t2 is approximately 5600 PPM, which is approximately 93% of the maximum concentration.

[0057] Apart from the cumulative amount of carbon dioxide, in terms of the concentration of carbon dioxide generated within a predetermined time, distance L1 is defined as the distance over which carbon dioxide generation continues until the wearing time t3, provided that the concentration of carbon dioxide generated between the start time t0 and the initial time t1 is 70% to 95% of the maximum concentration, preferably 70% to 90%, and more preferably 70% to 85% (first concentration), and the concentration of carbon dioxide generated between the initial time t1 and the intermediate time t2 is 15% to 35% of the maximum concentration, preferably 15% to 30%, and more preferably 20% to 30% (second concentration), and the sum of the first and second concentrations is less than 100%.

[0058] Mask 1 provides sufficient cosmetic effects at an initial time t1, and then maintains those effects by continuously generating carbon dioxide. Note that in experiments 1 to 5 described below in this specification, no correction is made to exclude the carbon dioxide concentration in the external environment (approximately 400 PPM). If correction is required, 400 PPM should be subtracted from the carbon dioxide concentration in experiments 1 to 5.

[0059] <<Manufacturing process for beauty masks>> To manufacture beauty mask 1, the following steps are performed.

[0060] As the first step, a solution of acid particles 30Aa (see Figure 3(b)) (hereinafter referred to as "acid solution") is dropped or printed onto the inner surface 1b of the base sheet 2 (nonwoven fabric) before it is formed into the shape of the mask 1. If printing is used, silk screen printing or gravure printing is employed. In contrast to this embodiment, the base sheet 2 may be formed into the shape of the mask 1 in the first step.

[0061] In the second step, the acid solution is dried to remove the liquid component, leaving only the particles 30Aa on the base sheet 2.

[0062] As the third step, a solution of carbonate particles 30Ba (see Figure 3(b)) (hereinafter referred to as "carbonate solution") is dropped or printed onto the inner surface 1b.

[0063] In the fourth step, the carbonate solution is dried to remove the liquid components. Once the fourth step is complete, the base sheet 2 will have acid particles 30Aa and carbonate particles 30Ba remaining, and as shown in Figure 3(b), they will be more abundant closer to the inner surface 1b.

[0064] In the fifth step, the base sheet 2 is cut into the shape of the mask 1.

[0065] <<Shape of Mask 1>> As shown in Figures 1 and 2, the base sheet 2 has eyelid portions 4A and 4B, a nose portion 20, a mouth opening 8, a chin portion 14, lateral cutouts 16A and 16B, and protrusions 18 for indicating the top, bottom, left, right, front, and back directions of the mask 1. Below the nose portion 20, a linear horizontal cutout 6 is formed. The portion of the base sheet 2 that comes into contact with the user's 200 forehead is designated as the forehead portion 19.

[0066] The human face is a three-dimensional shape with contours. The degree of contouring varies depending on the area of ​​the face, with relatively higher areas being convex and relatively lower areas being concave. The contours are particularly pronounced in the area around the nose, including the nose itself. The nose portion 20 of mask 1 is the part that comes into contact with the user's nose.

[0067] Once the cosmetic composition is impregnated into mask 1, it is applied to the face of user 200 (see Figure 6) (see Figures 7 and 8). When applying mask 1, it is first positioned to touch the forehead, eyes, and nose, and then it is fitted to the cheeks, mouth, chin, and other areas of the face according to its shape. Mask 1 is made larger than the average human face.

[0068] Generally, when a flat face mask is fitted to the three-dimensional shape of a face, wrinkles and sagging areas may occur, causing the face mask to peel off or lift away from the face. To address these issues, it is necessary to fine-tune the fit of the face mask. This involves either sliding the adhered face mask across the face or grasping and removing a portion of the face mask and then shifting it.

[0069] In this respect, since mask 1 is composed of a single base sheet 2, it is thinner and more easily conforms to the shape of the face compared to masks composed of multiple base sheets. Moreover, in mask 1, the lateral cutouts 16A, etc., prevent wrinkles and sagging of the mask 1, making it easy to adjust after initial placement and enabling effective attachment to the face.

[0070] <<Effects of Mask 1>> Since mask 1 is formed from a single nonwoven fabric base sheet 2, and the acid and carbonate are arranged on the base sheet 2 as described above, and the mask is formed in the shape described above, mask 1 can conform to the uneven shape of the user's 200 face and adhere closely. Furthermore, while mask 1 is in a state of conforming to the uneven shape of the user's 200 face and adhering closely, it generates carbon dioxide gas, thereby providing sufficient cosmetic effects to the user's 200 face.

[0071] <<Experiment 1 and Explanation>> The experiments conducted by the inventors of the present invention are described below. The inventors of the present invention have found through the experiments described below that the characteristics of mask 1 can be defined by distance L1 under the fixed condition 1 described above. Figures 9 to 11 are diagrams illustrating Experiment 1 of mask 1. Experiment 1 and Experiments 2 to 5 described later were conducted with the nonwoven fabric cut into rectangles before being used to construct mask 1.

[0072] As shown in Figures 9 and 10, test specimens 500A to 500D were prepared, each with a different distance between the acid region 30A and the carbonate region 30B. The distance between the acid region 30A and the carbonate region 30B is the width of the blank region 30C, from w3A to w3D.

[0073] In test specimens 500A to 500D, an acid region 30A and a carbonate region 30B are formed in a strip shape on a nonwoven fabric, with a blank region 30C in between. The width w1 of the acid region 30A and the width w2 of the carbonate region 30B are equal. The widths w1 and w2 are set to 1 centimeter (cm). The total area of ​​the acid region 30A is 20 square centimeters (cm²). 2 ) and the total area of ​​the carbonate region 30B is 30 square centimeters (cm²). 2 ) was.

[0074] For test specimens 500A to 500D, the acid and carbonate were arranged as follows.

[0075] A 30% citric acid solution (w / w) was prepared and 20 microliters (μL) were used to impregnate the strip-shaped area forming the acid region 30A using a micropipette. Next, the area was dried in a drying oven at 40°C. The weight after drying (hereinafter referred to as the "first post-drying weight") was measured and the amount of citric acid applied was calculated by comparing it with the weight before impregnation. The amount of citric acid applied was 0.24 grams (g).

[0076] Next, a 20% soda ash solution (w / w) was prepared, and 20 microliters (μL) of it was applied at a time to the band-shaped area forming the carbonate region 30B using a micropipette. Then, it was dried in a drying oven at 40°C. The weight after drying (hereinafter referred to as the "second post-drying weight") was measured, and the amount of soda ash applied was calculated by comparing it with the first post-drying weight described above. The amount of soda ash applied was 0.28 grams (g).

[0077] After placing citric acid and soda ash on test specimens 500A to 500D as described above, 20 square centimeters (cm) were placed on each test specimen 500A to 500D. 2One milliliter (mL) of water was injected into each cell, and the concentration of carbon dioxide (CO2) was measured at predetermined time intervals within the closed system.

[0078] The carbon dioxide concentration was measured as follows: First, a 1000 ml (mL) sealed container was prepared, and for each test piece 500A to 500D, a 20 square centimeter (cm²) area was measured. 2 Each sample was soaked with 1 milliliter (mL) of water and immediately placed in a sealed container. Subsequently, the carbon dioxide concentration in the closed system was measured at predetermined time intervals using a gas aspirator and a gas detection tube. The gas aspirator used was a Gastec GSP-300FT-2 (https: / / www.gastec.co.jp / files / topics / 2127_ext_14_1.pdf). The gas detection tube used was a Gastec 2LL carbon dioxide detection tube (https: / / www.gastec.co.jp / product / detail / id=1786).

[0079] In test specimens 500A to 500D, the above-described fixed condition 1 is applied, and the width of the blank area 30C differs. In test specimen 500A, the width w3A of the blank area 30C is 5 millimeters (mm), in test specimen 500B, the width w3B of the blank area 30C is 10 millimeters (mm), in test specimen 500C, the width w3C of the blank area 30C is 15 millimeters (mm), and in test specimen 500D, the width w3D of the blank area 30C is 20 millimeters (mm).

[0080] For each of the test specimens 500A to 500D, the cumulative change in carbon dioxide concentration over time within a closed system was measured, and the results shown in Figure 11 were obtained.

[0081] As shown in Figure 11, in test specimen 500C, carbon dioxide reaches substantially its maximum concentration at the time t3 of application. However, at the initial time t1, it is approximately 2900 PPM, which is less than 50% of the maximum concentration. Furthermore, at the intermediate time t2, it is approximately 4600 PPM, which is less than 80% of the maximum concentration.

[0082] In test specimen 500D, the concentration at the initial time t1 was approximately 2200 PPM, which is less than 50% of the maximum concentration. Furthermore, at the intermediate time t2, the concentration was approximately 4100 PPM, which is less than 70% of the maximum concentration.

[0083] In this embodiment, the configurations in which the carbon dioxide concentration does not reach 70% of the maximum concentration at the initial time t1, and the configurations in which the concentration does not reach 85% of the maximum concentration at the intermediate time t2, as in test specimens 500C and 500D, are excluded.

[0084] In test specimen 500A, the carbon dioxide concentration reaches its substantially maximum at the initial time t1. However, after the initial time t1, the carbon dioxide concentration hardly increases. Therefore, if the configuration of test specimen 500A is applied to mask 1, the user 200 can quickly receive the beauty effect of the maximum concentration of carbon dioxide when the beauty mask 1 is placed on the face, but no new carbon dioxide is replenished thereafter. For this reason, the configuration of test specimen 500A is excluded in this embodiment.

[0085] In test specimen 500B, the carbon dioxide concentration at the initial time t1 is approximately 4600 PPM, which is about 77% of the maximum concentration. Then, at the intermediate time t2, the carbon dioxide concentration is approximately 5500 PPM, which is about 92% of the maximum concentration. At the wearing time t3, the carbon dioxide concentration is substantially at the maximum concentration of 6000 PPM. Furthermore, the carbon dioxide concentration continuously increases from the start time t0 to the wearing time t3. In test specimen 500B, sufficient beauty effects are achieved at the initial time t1, and the beauty effects can be continued thereafter. In this embodiment, an example like test specimen 500B is adopted.

[0086] <<Experiment 2 and Explanation>> Refer to Figures 12 and 13 to explain Experiment 2. We will omit explanations of aspects common to Experiment 1 and focus on the differences between Experiment 2 and Experiment 1.

[0087] Figure 12 shows test specimens 501A to 501E used in Experiment 2. In test specimens 501A to 501E, the width w1 of the acid region 30A and the width w2 of the carbonate region 30B are equal. Widths w1 and w2 were set to 5 millimeters (mm). In test specimens 501A to 501E, the total amount of acid in the acid region 30A and the total amount of carbonate in the carbonate region 30B were the same as in Experiment 1.

[0088] The width w3x of the blank area 30C differs in test specimens 501A to 501E. The width w3x of the blank area 30C is 5 millimeters (mm) in test specimen 501A, 7.5 millimeters (mm) in test specimen 501B, 10 millimeters (mm) in test specimen 501C, 15 millimeters (mm) in test specimen 501D, and 20 millimeters (mm) in test specimen 501E.

[0089] For each test specimen 501A to 501E, the same experiment as in Experiment 1 was performed to measure the generation of carbon dioxide. However, while Experiment 1 measured the carbon dioxide concentration as a cumulative value, Experiment 2 measured the concentration of carbon dioxide generated within a predetermined time. Specifically, the measurements were performed as follows: For each test specimen 501A to 501E, 20 square centimeters (cm) 2One milliliter (mL) of water was poured into each container and placed in a sealed container (capacity 1 liter). The carbon dioxide concentration in the sealed container was measured after 1 minute (initial time t1). Next, the sealed container was released to remove the carbon dioxide accumulated up to the initial time t1, and then the sealed container was re-established. The carbon dioxide concentration in the sealed container was measured after 4 minutes (intermediate time t2). Next, the sealed container was released to remove the carbon dioxide accumulated up to the intermediate time t2, and then the sealed container was re-established. The carbon dioxide concentration in the sealed container was measured after 7 minutes (second half time t2.5). After that, the sealed container was released to remove the carbon dioxide accumulated up to the second half time t2.5, and then the sealed container was re-established. The carbon dioxide concentration in the sealed container was measured after 10 minutes (installation time t3). In other words, the concentration of carbon dioxide (carbonic acid gas) generated during predetermined time intervals was measured.

[0090] For each of the test specimens 501A to 501E, the carbon oxide concentration was measured over a predetermined time interval, and the results shown in Figure 13 were obtained.

[0091] As shown in Figure 13, the carbon dioxide concentrations at the initial time t1 were approximately 3200 PPM, 2700 PPM, and 2000 PPM for test specimens 501C, 501D, and 501E, respectively, and did not reach 60% of the maximum concentration.

[0092] When the embodiments of test specimens 501C, 501D, and 501E are applied to mask 1, the carbon dioxide concentration generated at the initial time t1 does not reach 60% of the maximum concentration, and therefore a sufficient cosmetic effect cannot be achieved. In this embodiment, embodiments such as test specimens 501C, 501D, and 501E are excluded.

[0093] In test specimens 501A and 501B, the carbon dioxide concentrations at the initial time t1 were approximately 5700 PPM and 4300 PPM, respectively, reaching 70% of the maximum concentration.

[0094] In test specimen 501A, the carbon dioxide concentration at intermediate time t2 is approximately 800 PPM, which is less than 15% of the maximum concentration. That is, when the configuration of test specimen 501A is applied to mask 1, the carbon dioxide concentration generated at initial time t1 is sufficient to produce a cosmetic effect, but thereafter, the concentration of carbon dioxide generated by intermediate time t2 decreases rapidly, making it impossible to replenish a sufficient amount of carbon dioxide. For this reason, the configuration of test specimen 501A is excluded in this embodiment.

[0095] In test specimen 501B, the carbon dioxide concentration was approximately 1500 PPM at intermediate time t2, reaching 25% of the maximum concentration. Therefore, the carbon dioxide concentration generated at initial time t1 is sufficient to produce the beauty effect, and a sufficient amount of carbon dioxide can be replenished thereafter. In this embodiment, an arrangement like that of test specimen 501B is adopted.

[0096] <Second Embodiment> Referring to Figures 14 to 18, the mask 1A of the second embodiment (see Figures 1 and 2) will be described. Matters common to the first embodiment will be omitted from the explanation, and the focus will be on the differences from the first embodiment. The basic configuration of mask 1A is the same as that of mask 1 of the first embodiment. However, the way in which the acid region 30A and the carbonate region 30B are defined is different. In the second embodiment, the features of mask 1A are realized by defining the widths of the acid region 30A and the carbonate region 30B.

[0097] If the total amount of acid in all acid regions 30A and the total amount of carbonate in all carbonate regions 30B are constant, and the acid is distributed in substantially the same mass proportion in all acid regions 30A and the carbonate is distributed in substantially the same mass proportion in all carbonate regions 30B, and the distance between adjacent acid regions 30A and carbonate regions 30B (width of blank region 30C) is constant (hereinafter referred to as "fixed condition 2"), then the characteristics of mask 1A are defined by the width of the acid regions and the width of the carbonate regions.

[0098] The widths of the acid region 30A and the carbonate region 30B (hereinafter referred to as "each width") are defined as the widths within which, in measuring the cumulative amount of carbon dioxide generated from mask 1A in a closed system, the concentration of carbon dioxide generated from mask 1A reaches 65% to 95% of the maximum concentration at the initial time t1, reaches 75% to 95% of the maximum concentration at the intermediate time t2, and carbon dioxide generation continues until the wearing time t3.

[0099] Preferably, each width is defined as the width over which the concentration of carbon dioxide generated from mask 1A reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3.

[0100] More preferably, each width is defined as the width over which the concentration of carbon dioxide generated from mask 1A reaches 70% to 85% of the maximum concentration at the initial time t1, reaches 85% to 90% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3.

[0101] In terms of the concentration of carbon dioxide generated within a predetermined time, each width is defined as the distance over which carbon dioxide generation continues until the wearing time t3, where the concentration of carbon dioxide generated between the start time t0 and the initial time t1 is 70% to 95% of the maximum concentration, preferably 70% to 90%, and more preferably 70% to 85% (first concentration); the concentration of carbon dioxide generated between the initial time t1 and the intermediate time t2 is 15% to 35% of the maximum concentration, preferably 15% to 30%, and more preferably 20% to 30% (second concentration); the sum of the first and second concentrations is less than 100%.

[0102] <<Experiment 3>> Experiment 3 will be explained with reference to Figures 14 to 16. We will omit explanations of aspects common to Experiments 1 and 2, and focus on the differences between Experiment 3 and Experiments 1 and 2.

[0103] Figures 14 and 15 show test specimens 502A to 502D used in Experiment 3. In test specimens 502A to 502D, the width w3e of the blank region 30C is constant. The width w3e was set to 10 millimeters (mm). In test specimens 502A to 502D, the width of the acid region 30A and the width of the carbonate region 30B are different. The total amount of acid in the acid region 30A and the total amount of carbonate in the carbonate region 30B are the same as in Experiment 1 and are identical in test specimens 502A to 502D. The maximum concentration is also the same as in Experiment 1, at 6000 PPM.

[0104] In test specimen 502A, the width w1e of the acid region 30A and the width w2e of the carbonate region 30B are 5 millimeters (mm). In test specimen 502B, the width w1f of the acid region 30A and the width w2f of the carbonate region 30B are 10 millimeters (mm). In test specimen 502C, the width w1g of the acid region 30A and the width w2g of the carbonate region 30B are 15 millimeters (mm). In test specimen 502D, the width w1h of the acid region 30A and the width w2h of the carbonate region 30B are 20 millimeters (mm).

[0105] For each test specimen 502A to 502D, the generation of carbon dioxide was investigated using the same method as in Experiment 1. As a result, the results shown in Figure 16 were obtained.

[0106] As shown in Figure 16, in test specimens 502C and 502D, the carbon dioxide concentrations at the initial time t1 were approximately 2400 PPM and 1600 PPM, respectively, which did not reach 50% of the maximum concentration.

[0107] When the configurations of test specimens 502C and 502D are applied to mask 1A, the carbon dioxide concentration generated at the initial time t1 is insufficient for the cosmetic effect on the user's face 100.

[0108] In test specimens 502A and 502B, the carbon dioxide concentrations at the initial time t1 were approximately 5000 PPM and 4200 PPM, respectively, reaching 70% of the maximum concentration.

[0109] When the modes of test pieces 502A and 502B are applied to mask 1A, the carbon dioxide concentration generated from start time t0 to initial time t1 exhibits a sufficient beauty effect.

[0110] The carbon dioxide concentration at intermediate time t2 is approximately 5600 PPM for test piece 502A, reaching 90% or more of the maximum concentration. For test piece 502B, it is approximately 5200 PPM, reaching 85% or more of the maximum concentration. And in test pieces 502A and 502B, the carbon dioxide concentration continuously increases until wearing time t3. Therefore, when the modes of test pieces 502A and 502B are applied to mask 1A, sufficient beauty effects are achieved by the carbon dioxide gas generated from initial time t0 to initial time t1, and then the beauty effects are maintained by the newly generated carbon dioxide gas.

[0111] <<Experiment 4>> Referring to FIGS. 17 and 18, Experiment 4 will be described. Matters common to Experiments 1 to 3 will be omitted from the description, and the description will focus on matters different from Experiments 1 to 3.

[0112] FIG. 17 is a diagram showing test pieces 504A to 504E used in Experiment 4. In test pieces 504A to 504E, the width w3 of blank region 30C is constant. The width w3 was set to 5 millimeters (mm).

[0113] The width w1x of acid region 30A and the width w2x of carbonate region 30B are equal, but their sizes are different in each of test pieces 504A to 504E. The width w1x and width w2x are 5 millimeters (mm), 7.5 millimeters (mm), 10 millimeters (mm), 15 millimeters (mm), and 20 millimeters (mm) respectively in test pieces 504A to 504E.

[0114] The following experiment was conducted for each of test pieces 504D to 504E. For each of test pieces 504A to 504E, 20 square centimeters (cm 2One milliliter (mL) of water was injected into each container and placed in a sealed container (capacity 1 liter). The carbon dioxide concentration in the sealed container was measured after 1 minute (initial time t1). Subsequently, the sealed container was released, the carbon dioxide accumulated up to the initial time t1 was removed, and then the container was sealed again. The carbon dioxide concentration in the sealed container was measured after 4 minutes (intermediate time t2). Subsequently, the sealed container was released, the carbon dioxide accumulated up to the intermediate time t2 was removed, and then the container was sealed again. The carbon dioxide concentration in the sealed container was measured after 7 minutes (second half time t2.5). After that, the sealed container was released, the carbon dioxide accumulated up to the second half time t2.5 was removed, and then the container was sealed again. The carbon dioxide concentration in the sealed container was measured after 10 minutes (installation time t3). In other words, the concentration of carbon dioxide (carbonic acid gas) generated during predetermined time intervals was measured, and the results shown in Figure 18 were obtained.

[0115] As shown in Figure 18, the carbon dioxide concentration at the initial time t1 was approximately 2500 PPM in test specimen 504D, which is less than 50% of the maximum concentration. In test specimen 504E, it was approximately 1600 PPM, which is less than 40% of the maximum concentration.

[0116] For test specimens 504A, 504B, and 504C, the carbon dioxide concentrations at the initial time t1 were approximately 5700 PPM, 4600 PPM, and 4200 PPM, respectively, all reaching 70% of the maximum concentration.

[0117] In test specimen 504A, the carbon dioxide concentration at intermediate time t2 is approximately 800 PPM, which is less than 15% of the maximum concentration. Therefore, when the configuration of test specimen 504A is applied to mask 1A, the carbon dioxide generated between initial time t1 and intermediate time t2 is insufficient to replenish the carbon dioxide emitted to the outside.

[0118] At the intermediate time t2, test specimens 504B and 504C had carbon dioxide concentrations of approximately 1500 PPM and 1600 PPM, respectively, reaching 25% of their maximum concentration. By the second half of time t2.5, the carbon dioxide concentration emitted from test specimen 504B was approximately 800 PPM, reaching 10% of its maximum concentration. Also by the second half of time t2.5, the carbon dioxide concentration emitted from test specimen 504C was approximately 1400 PPM, reaching 20% ​​of its maximum concentration. Test specimens 504B and 504C continued to emit carbon dioxide until the wearing time t3.

[0119] When the embodiments of test specimens 504B and 504C are applied to mask 1A, a sufficient cosmetic effect can be achieved at the initial time t1, the cosmetic effect can be maintained at the intermediate time t2, and further, a reasonable cosmetic effect can be achieved up to the wearing time t3. Test specimen 504C generates carbon dioxide at a maximum concentration of 15% or more even between the intermediate time t2 and the later time t2.5, so the carbon dioxide discharged to the outside can be sufficiently replenished. Mask 1A adopts the embodiment of test specimen 504B or 504C as the base sheet 2.

[0120] <Third Embodiment> Referring to Figures 19 and 20, the mask 1B of the third embodiment (see Figures 1 and 2) will be described. Matters common to the first and second embodiments will be omitted from the explanation, and the differences will be the focus of the description. The basic configuration of mask 1B is the same as that of mask 1 of the first embodiment and mask 1A of the second embodiment. However, the way in which the acid region 30A, carbonate region 30B, and blank region 30C are defined is different. In the third embodiment, the total amount of acid and the total amount of carbonate in the acid region 30A and carbonate region 30B are the same as in the first and second embodiments. However, in the mask 1B of the third embodiment, the width of the blank region 30C, the width of the acid region 30A, and the width of the carbonate region 30B are defined such that, in measuring the cumulative amount of carbon dioxide generated from mask 1B in a closed system, the concentration of carbon dioxide generated from mask 1B reaches 65% to 95% of the maximum concentration at the initial time t1, reaches 75% to 95% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3. However, the concentration of carbon dioxide at the initial time t1 is lower than the concentration of carbon dioxide at the intermediate time t2.

[0121] Preferably, the widths of the blank region 30C, the acid region 30A, and the carbonate region 30B are defined such that the concentration of carbon dioxide generated from the mask 1B reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3. However, the concentration of carbon dioxide at the initial time t1 is lower than the concentration of carbon dioxide at the intermediate time t2.

[0122] More preferably, the widths of the blank region 30C, the acid region 30A, and the carbonate region 30B are defined such that the concentration of carbon dioxide generated from the mask 1B reaches 70% to 85% of the maximum concentration at the initial time t1, reaches 85% to 90% of the maximum concentration at the intermediate time t2, and continues to generate carbon dioxide until the wearing time t3. However, the concentration of carbon dioxide at the initial time t1 is lower than the concentration of carbon dioxide at the intermediate time t2.

[0123] Figure 19(a) shows test specimens 506A to 506E according to a reference embodiment. In test specimens 506A to 506E, the width w3 of the blank region 30C is constant and is 5 millimeters (mm). In contrast, the width w1x of the acid region 30A and the width w2x of the carbonate region 30B are equal, but differ from each other in each test specimen 506A to 506E. The widths w1x of the acid region 30A and w2x of the carbonate region 30B are 5 millimeters (mm), 7.5 millimeters (mm), 10 millimeters (mm), 15 millimeters (mm), and 20 millimeters (mm), respectively, in test specimens 506A to 506E.

[0124] Figure 19(b) shows a test specimen 508 according to the third embodiment. The total amount of acid in the acid region 30A and the total amount of carbonate in the carbonate region 30B of test specimen 508 are the same as those of test specimens 506A to 506E.

[0125] In test specimen 508, acid regions 30A1 and 30A2 are located. The width w1A of acid region 30A1 is 5 millimeters (mm), and the width w1B of acid region 30A2 is 10 millimeters (mm). In addition, carbonate regions 30B1 and 30B2 are located in test specimen 508. The width w2A of carbonate region 30B1 is 5 millimeters (mm), and the width w2B of carbonate region 30B2 is 10 millimeters (mm). Furthermore, blank regions 30C1 and 30C2 are located in test specimen 508. The width w3k1 of blank region 30C1 is 5 millimeters (mm), and the width w3k2 of blank region 30C2 is 10 millimeters (mm).

[0126] For each of the test specimens 506A to 506E and 508, the cumulative concentration of carbon dioxide in the closed system was measured, and the results shown in Figure 20 were obtained.

[0127] As shown in Figure 20, in test specimens 506D and 506E, the carbon dioxide concentrations at the initial time t1 were approximately 2500 PPM and 1600 PPM, respectively, which did not reach 50% of the maximum concentration. In test specimen 506C, the carbon dioxide concentration at the initial time t1 was approximately 4000 PPM, which did not reach 70% of the maximum concentration.

[0128] In test specimens 506A, 506B, and 508, the carbon dioxide concentrations at the initial time t1 were approximately 5000 PPM, 4500 PPM, and 4700 PPM, respectively, reaching 70% of the maximum concentration.

[0129] In test specimen 506A, the carbon dioxide concentration was approximately 5800 PPM at intermediate time t2, but it hardly increased thereafter until the wearing time t3. This indicates that in test specimen 506A, almost no new carbon dioxide is generated after intermediate time t2. Similarly, in test specimen 506B, almost no new carbon dioxide is generated after intermediate time t2. Therefore, when the configuration of test specimen 506A or 506B is applied to mask 1B, it indicates that no carbon dioxide is replenished to the outside after intermediate time t2.

[0130] In test specimen 508, the carbon dioxide concentration at intermediate time t2 was approximately 5500 PPM, reaching 90% of the maximum concentration. Furthermore, in test specimen 508, the carbon dioxide concentration continued to increase until the wearing time t3.

[0131] <Fourth Embodiment> The mask 1C of the fourth embodiment will be described with reference to Figures 21 to 23. Matters common to the first embodiment will be omitted from the explanation, and the focus will be on the differences from the first embodiment.

[0132] As shown in Figure 21, in the base sheet 2C of mask 1C, the acid region 31A and the carbonate region 31B are arranged in a grid pattern. The length of each side of the grid is 10 millimeters (mm). A blank region 30C is formed between the acid region 31A and the carbonate region 31B.

[0133] As shown in Figure 22(a), the acid region 31A and the carbonate region 31B are positioned towards the outer surface 1a. A restricting layer 40, which is a layer for limiting the passage of liquids and gases, is placed on the outer surface 1a. The restricting layer 40 is made of, for example, aluminum foil.

[0134] As shown in Figure 22(b), in the acid region 31A and the carbonate region 31B, the acid particles 31Aa and carbonate particles 31Ba are arranged in greater quantities closer to the outer surface 1a (on the inner surface 1b side) in the thickness direction of the base sheet 2 than in the quantities further away from the outer surface 1a. In this case, when the user 200 applies the cosmetic composition to the inner surface 1b of the mask 1C during use, in the initial stage, a weak cosmetic effect is produced by the relatively small amount of carbon dioxide generated by the reaction of the acid and carbonate near the inner surface 1b. As time passes, the relatively large amount of carbon dioxide generated near the outer surface 1a is also restricted from being released to the outside from the outer surface 1a by the restricting layer 40, and instead heads towards the inner surface 1b side. Therefore, it is released from the inner surface 1b with a time delay, and a gradually greater cosmetic effect can be produced. In this way, by making the amount of carbon dioxide different in multiple stages, the intensity of the cosmetic effect can be gradually increased.

[0135] <<Distance between the acid region and the carbonate region in Mask 1C>> As shown in Figure 23, the shortest distance between the adjacent positions 31An and 31Bn of the acid region 31A and the carbonate region 31B is defined as distance L1. Distance L1 is 10 millimeters, which is the same as that of mask 1 (test piece 500B) in the first embodiment. However, in mask 1, the acid region 30A and the carbonate region 30B are formed in a strip shape, and there are at most two places where the acid region 30A and the carbonate region 30B face each other. In contrast, in mask 1C, the parts where the acid region 31A and the carbonate region 31B face each other are the four sides of the grid, and there are at most four places. Note that the width of the acid region, the width of the carbonate region, and the width of the blank area in the first to third embodiments become the minimum width of the acid region, the minimum width of the carbonate region, and the minimum width of the blank area, respectively, in the fourth embodiment.

[0136] Therefore, when a liquid cosmetic composition is applied during the use of mask 1C, the concentration of carbon dioxide increases more rapidly than when the acid and carbonate regions are arranged in a strip-like manner, as in mask 1.

[0137] This means that in mask 1C, the distance L1 can be made larger than 10 millimeters than when the acid region and carbonate region are arranged as in mask 1, in order to achieve a predetermined carbon dioxide generation pattern. Increasing the distance L1 makes it possible to more reliably maintain the acid and carbonate in an unreacted state when mask 1C is not used.

[0138] <<Manufacturing process for Mask 1C>> In the base sheet 2C, the following steps are performed to arrange the acid and carbonate. In the first step, a solution of acid particles 31Aa (see Figure 22(b)) (hereinafter referred to as "acid solution") is dropped or printed onto the outer surface 1a of the nonwoven fabric before it is shaped into the mask 1C. In the second step, the acid solution is dried to remove the liquid component, leaving only the particles 31Aa on the base sheet 2A. In the third step, a solution of carbonate particles 31Ba (see Figure 22(b)) (hereinafter referred to as "carbonate solution") is dropped or printed onto the outer surface 1a. In the fourth step, the carbonate solution is dried to remove the liquid component. After the fourth step is completed, the base sheet 2C will have acid particles 31Aa and carbonate particles 31Ba remaining, and as shown in Figure 22(b), they will be arranged in larger quantities closer to the outer surface 1a. In the fifth step, the limiting layer 40 is placed on the outer surface 1a. In the fifth step, the nonwoven fabric is shaped into the mask 1C.

[0139] <Modified form of the fourth embodiment> In the modified version of the fourth embodiment, the limiting layer 40 is not formed on the base sheet 2C. Therefore, some of the carbon dioxide generated near the outer surface 1a of the base sheet 2A is released to the outside. As a result, the amount of carbon dioxide reaching the user's face is reduced compared to the fourth embodiment, resulting in a gentler cosmetic effect.

[0140] <Fifth Embodiment> Referring to Figures 24 and 25, the mask 1D of the fifth embodiment will be described. The explanation will omit details common to the first embodiment and focus on the differences from the first embodiment.

[0141] As shown in Figures 24 and 25, in the mask 1D, acid regions 32A and carbonate regions 32B are arranged as numerous circular points on the inner surface 1b of the base sheet 2D. The inner regions of the circular shapes are the acid regions 32A and carbonate regions 32B, respectively. The diameter of the circular points is, for example, 5 millimeters (mm).

[0142] As shown in Figure 25, the shortest distance between the acid region 32A and the carbonate region 32B is distance L1. Since the acid region 32A and the carbonate region 32B are small circles, the area of ​​the blank region 32C can be made larger compared to the first embodiment. In addition, each acid region 32A faces four carbonate regions 32B, and each carbonate region 32B faces four acid regions 32A. For this reason, when the cosmetic composition is applied to the mask 1D, the time it takes for the carbon dioxide concentration to increase is shorter than that of the mask 1 in the first embodiment. Furthermore, since carbon dioxide is generated relatively uniformly at each position on the inner surface 1b of the mask 1D, the cosmetic effect can be achieved relatively uniformly at the user's 200 face.

[0143] In the fifth embodiment, the widths of the acid region, the carbonate region, and the blank region, respectively, are the minimum width of the acid region, the minimum width of the carbonate region, and the minimum width of the blank region.

[0144] Furthermore, the cosmetic container of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. In addition, each of the above embodiments can be combined as appropriate, as long as it does not create a technical inconsistency. [Explanation of Symbols]

[0145] 1,1A,1B,1C,1D Beauty Mask 2, 2A, 2B, 2C, 2D Base sheet 4A,4B Eyelids 6 cuts 8 Mouth opening 19 Forehead 14. Jaw 16A, 16B Side cuts 20 Nose 30A,31A,32A acid area 30B, 31B, 32B Carbonate region

Claims

1. It is a beauty mask that generates carbon dioxide gas. The aforementioned beauty mask is composed of a base sheet made of a single nonwoven fabric, The acid particles and carbonate particles are arranged on the base sheet in such a manner that they do not overlap with each other on the inner surface, which is one of the main surfaces of the base sheet, and / or the outer surface, which is the main surface opposite to the inner surface. Beauty mask.

2. In an embodiment in which the acid particles and carbonate particles become movable and are not prevented from coming into contact with each other when a liquid cosmetic composition is applied to the beauty mask, the acid particles and carbonate particles are arranged on the base sheet. The beauty mask according to claim 1.

3. The acid particles and the carbonate particles are directly arranged on the substrate sheet. The beauty mask is configured such that when a liquid cosmetic composition is applied to it, the acid and the carbonate react to generate carbon dioxide gas. The beauty mask according to claim 1.

4. On the inner surface and / or the outer surface, a blank region is formed between the acid region, which is the region where the acid particles are located, and the carbonate region, which is the region where the carbonate particles are located, in which neither the acid particles nor the carbonate particles are located. The beauty mask is configured such that when a liquid cosmetic composition is applied to it, the acid constituting the acid particles and the carbonate constituting the carbonate particles react to generate carbon dioxide gas. The beauty mask according to claim 1.

5. A first step involves dropping or printing an acid solution, which is a solution of acid particles, onto the inner or outer surface of the base sheet, either before it is molded into the shape of the beauty mask or after it has been formed into the shape of the beauty mask. A second step involves drying the acid solution to remove the liquid component, leaving the acid particles on the substrate sheet. A third step involves dropping or printing a carbonate solution, which is a solution of the carbonate particles, onto the inner or outer surface, which is the same as in the first step. A fourth step involves drying the carbonate solution to remove the liquid component, so that the acid particles and carbonate particles remain on the substrate sheet. The acid particles and the carbonate particles are arranged on the substrate sheet by a process including the following: A beauty mask according to any one of claims 1 to 4.

6. The beauty mask according to any one of claims 1 to 4, wherein the acid and the carbonate are arranged in relatively larger amounts in the thickness direction of the base sheet at positions closer to the inner surface than at positions further from the inner surface.

7. The beauty mask according to any one of claims 1 to 4, wherein the acid and the carbonate are arranged in relatively larger amounts in the thickness direction of the base sheet at positions closer to the outer surface than at positions further from the outer surface.

8. When the amount of the acid in the ratio that allows the acid and the carbonate to react and most effectively produce carbon dioxide is defined as the first amount, The beauty mask according to any one of claims 1 to 4, wherein the amount of acid placed in the beauty mask is less than the first amount.

9. In a time series, the start time t0 is defined as the time when the user applies the cosmetic composition to the inner surface of the beauty mask, the application time t3 is defined as the time when the user finishes wearing the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0. The composition is produced in a closed system with a capacity of 1000 milliliters (ml) by the total amount of the acid placed in the acid region and the total amount of the carbonate placed in the carbonate region. The beauty mask according to claim 4, wherein, when the concentration of carbon dioxide generated is set to the maximum concentration, and the total area of ​​the acid region and the total area of ​​the carbonate region are kept constant, the shortest distance between adjacent acid regions and carbonate regions is defined as the distance over which, in measuring the cumulative amount of carbon dioxide generated from the beauty mask in a closed system, the concentration of carbon dioxide generated from the beauty mask reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and the generation of carbon dioxide continues until the application time t3.

10. In a time series, the start time t0 is defined as the time when the user applies the cosmetic composition to the inner surface of the beauty mask, the application time t3 is defined as the time when the user finishes wearing the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, specifically the time 1 minute after the start time t0. The concentration of carbon dioxide gas generated by the total amount of acid placed in the acid region and the total amount of carbonate placed in the carbonate region within a closed system with a capacity of 1000 milliliters (ml) is set to the maximum The beauty mask according to claim 4, wherein, when the total area of ​​the acid region and the total area of ​​the carbonate region are constant, the shortest distance between adjacent acid regions and carbonate regions is defined as the distance over which carbon dioxide generation continues until the application time t3, where the concentration of carbon dioxide generated between the start time t0 and the initial time t1 is 70% to 90% of the maximum concentration (first concentration), the concentration of carbon dioxide generated between the initial time t1 and the intermediate time t2 is 15% to 30% of the maximum concentration (second concentration), the sum of the first concentration and the second concentration is less than 100%, and the generation of carbon dioxide continues until the application time t3.

11. In a time series, the start time t0 is defined as the time when the user applies the cosmetic composition to the inner surface of the beauty mask, the application time t3 is defined as the time when the user finishes wearing the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, specifically the time 1 minute after the start time t0, and the total amount of the acid placed in the acid region and the amount of the carbonate region within a closed system with a capacity of 1000 milliliters (ml) The beauty mask according to claim 4, wherein the concentration of carbon dioxide generated by the total amount of carbonate is defined as the maximum concentration, and the shortest distance between adjacent acid regions and carbonate regions is kept constant, the width of the acid region and the width of the carbonate region are defined as the width such that the cumulative concentration of carbon dioxide generated from the beauty mask in a closed system reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and the generation of carbon dioxide continues until the application time t3.

12. In a time series, the start time t0 is defined as the time when the user applies the cosmetic composition to the inner surface of the beauty mask, the application time t3 is defined as the time when the user finishes wearing the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, specifically the time 1 minute after the start time t0. The concentration of carbon dioxide gas generated by the total amount of the acid placed in the acid region and the total amount of the carbonate placed in the carbonate region within a closed system with a capacity of 1000 milliliters (ml) is defined as follows: The beauty mask according to claim 4, wherein, with the maximum concentration and the shortest distance between adjacent acid regions and carbonate regions being constant, the width of the acid region and the width of the carbonate region are defined as the width over which carbon dioxide generation continues until the application time t3, such that the concentration of carbon dioxide generated between the start time t0 and the initial time t1 is 70% to 90% of the maximum concentration (first concentration), the concentration of carbon dioxide generated between the initial time t1 and the intermediate time t2 is 15% to 30% of the maximum concentration (second concentration), the sum of the first concentration and the second concentration is less than 100%, and carbon dioxide generation continues until the application time t3.

13. In a time series, the start time t0 is defined as the time when the user applies the cosmetic composition to the inner surface of the beauty mask, the application time t3 is defined as the time when the user finishes wearing the beauty mask, the intermediate time t2 is defined as the time midway between the start time t0 and the application time t3, and the initial time t1 is defined as the time between the start time t0 and the intermediate time t2, which is 1 minute after the start time t0, and the total amount of the acid placed in the acid region and the amount placed in the carbonate region within a closed system with a capacity of 1000 milliliters (ml) The beauty mask according to claim 4, wherein, when the concentration of carbon dioxide generated by the total amount of carbonate is defined as the maximum concentration, the shortest distance between adjacent acid regions and carbonate regions, the width of the acid region, and the width of the carbonate region are defined as widths such that the cumulative concentration of carbon dioxide generated from the beauty mask in a closed system reaches 70% to 90% of the maximum concentration at the initial time t1, reaches 85% to 95% of the maximum concentration at the intermediate time t2, and the generation of carbon dioxide continues until the application time t3.

Images