Skincare devices that come into contact with or are worn on the skin

Abstract

To provide a care appliance with improved comfort when it is contacted to the skin and worn on the skin.SOLUTION: A care appliance 100 is contacted to or worn on the skin. The care appliance 100 is provided with a skin wearing member 1 including elastomer. The skin mounting member 1 has hardness at Asker C30 degree or less and 3 or less coefficient of static friction. Here, the coefficient of static friction is for an artificial skin sheet satisfying characteristics of the following (A) and (B): (A) compressive stress when the artificial skin sheet is pressed for depth 2 mm in a thickness direction is between 0.01 MPa and 0.05 MPa; and (B) arithmetic average roughness Ra of a surface of the artificial skin sheet is between 5 μm and 10 μm.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This disclosure relates to a care device that comes into contact with or is worn on the skin. [Background technology]

[0002] Many massage devices are sold to alleviate stiff shoulders, eye strain, or fatigue in the hands and feet. Additionally, many aesthetic devices for facial treatments and other beauty purposes are also available.

[0003] In today's stressful society, the need for relaxation and healing is increasing. One way to achieve relaxation and healing is through tactile care such as esthetics or massage. It is believed that these treatments, through physical stimulation of the skin, can induce feelings of pleasure and provide positive psychological and physiological effects. In recent years, esthetic and massage devices have been developed to allow people to experience esthetics or massage at home.

[0004] Patent Document 1 proposes an eye mask for relieving eye strain. This eye mask has a Peltier element attached to an annular frame located around the eyes on the frame, a removable pad provided on the eye-side end face of the Peltier element, and a rectangular container filled with a heat storage material provided on the other end face. This eye mask has a configuration in which the magnitude and direction of the current flowing through the Peltier element are controlled by a control device.

[0005] Patent document 2 proposes a beauty device for eye care that features heating of the facial skin around the eyes using water vapor and heat from a heating element.

[0006] Patent Document 3 proposes a foot care pad for footwear, made of an elastomer with a hardness of 20° to 40°, which can be detachably attached to the top surface of an insole, for the purpose of treating foot pain and preventing fatigue. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Unexamined Patent Publication No. Hei 7-16255 [Patent Document 2] International Publication No. 2014 / 119025 [Patent Document 3] Japanese Unexamined Patent Publication No. 2004-194734 [Non-Patent Literature]

[0008] [Non-Patent Literature 1] J.Soc.Cosmet. Che. Jpn. Vol.43, No.3 2009 177-183 [Summary of the Invention] [Problem to be Solved by the Invention]

[0009] Most care devices such as massage devices and aesthetic devices are brought into direct contact with or worn on the skin. Therefore, for these care devices, the tactile sensation when brought into direct contact with the skin and the wearing comfort when worn are important for obtaining relaxation and healing effects. However, with conventional care devices of this type, the level of comfort when brought into contact with the skin and when worn is insufficient, and sufficient relaxation and healing effects cannot be obtained.

[0010] The present disclosure provides a care device with improved comfort when brought into contact with the skin and when worn on the skin. [Means for Solving the Problem]

[0011] The present disclosure provides: a skin-mounted member comprising an elastomer, wherein the skin-mounted member has a Asker C hardness of 30 degrees or lower and a coefficient of static friction of 3 or lower, a care device that is brought into contact with or worn on the skin. Here, the coefficient of static friction is a coefficient of static friction for an artificial skin sheet that satisfies the following characteristics (A) and (B). (A) A compressive stress when indenting the artificial skin sheet to a depth of 2 mm in the thickness direction is not less than 0.01 MPa and not more than 0.05 MPa. (B) An arithmetic mean roughness Ra of a surface of the artificial skin sheet is 5 µm to 10 µm.

Effects of the Invention

[0012] The present disclosure provides a care device with improved comfort when brought into contact with the skin and worn on the skin.

Brief Description of Drawings

[0013] [Figure 1] Cross-sectional view showing an example of the care device in Embodiment 1. [Figure 2] Cross-sectional view showing an example of a skin attachment member having a multilayer structure. [Figure 3A] Cross-sectional view showing a configuration in which a base material is sealed with a film in the skin attachment member. [Figure 3B] Cross-sectional view showing a configuration in which a base material is sealed with a film in the skin attachment member. [Figure 4] Cross-sectional view showing a first modification of the care device in Embodiment 1. [Figure 5] Cross-sectional view showing a second modification of the care device in Embodiment 1. [Figure 6] Cross-sectional view showing a third modification of the care device in Embodiment 1. [Figure 7] Cross-sectional view showing a fourth modification of the care device in Embodiment 1. [Figure 8] Cross-sectional view showing a fifth modification of the care device in Embodiment 1. [Figure 9] Cross-sectional view showing a sixth modification of the care device in Embodiment 1. [Figure 10] Graph showing the relationship between the Asker C hardness of the skin attachment member and the comfort of feel around the eyes and on the hand when using the care device. [Figure 11] A graph showing the relationship between the static friction coefficient of the skin-attached component against artificial skin and the pleasant feeling of the eye area and hands when using the care device. [Modes for carrying out the invention]

[0014] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, the importance of improving the feel of the parts that come into contact with the skin in care devices that are attached to or worn on the skin was not widely recognized. However, the inventors discovered that improving the feel of the parts that come into contact with the skin in care devices is effective in enhancing the relaxation and healing effects of the care devices, and they diligently conducted research on improving the feel of the parts that come into contact with the skin in care devices.

[0015] The tactile sensation a person experiences when touching an object is thought to be influenced by the object's physical properties. The inventors have newly discovered that the tactile sensation a person feels when touching an object correlates with the object's hardness and its static friction coefficient against the skin, and that the tactile sensation can be controlled by the object's hardness and static friction coefficient. When an object has low hardness, a person perceives it as soft. As a result of diligent research, the inventors have found that when the Asker C hardness of an object is 30 degrees or less, the pleasantness of the tactile sensation against the skin improves. Furthermore, as mentioned above, the static friction coefficient of an object correlates with the tactile sensation with respect to human skin. Therefore, in order to represent the tactile sensation of an object against human skin, the friction coefficient against human skin, which is the object being rubbed, is necessary. However, evaluating the friction coefficient against human skin, which has unique surface properties and softness, has been difficult. In this invention, the inventors have found that the static friction coefficient against artificial skin, which has physical properties similar to those of human skin, can serve as an indicator of the tactile sensation against human skin.

[0016] As a result of diligent research, the inventors have found that when the static friction coefficient of an object against artificial skin, which is a material similar to human skin, is 3 or less, the pleasantness of the feel against the skin improves.

[0017] Artificial skin is a product that mimics human skin, closely resembling its feel and softness. It is used in medical fields for purposes such as suturing training or cosmetic evaluation. This invention focuses on the unique surface characteristics and softness of human skin, clarifies the physical properties that serve as indicators of surface characteristics and softness, and discovers that by using artificial skin with physical properties similar to human skin, the static friction coefficient against human skin can be evaluated.

[0018] Therefore, this disclosure provides a care device equipped with a skin-contacting member containing an elastomer, wherein the skin-contacting member has a hardness of 30 degrees or less on the Asker C hardness scale and a static friction coefficient of 3 or less, and is intended to be in contact with or attached to the skin. In this disclosure, the Asker C hardness scale and static friction coefficient of the skin-contacting member refer to the Asker C hardness scale and static friction coefficient of the surface of the skin-contacting member that comes into contact with the skin when the care device is in contact with or attached to the skin. Here, the static friction coefficient is the static friction coefficient with respect to an artificial skin sheet that satisfies the following characteristics (A) and (B). (A) The compressive stress when the artificial skin sheet is indented to a depth of 2 mm in the thickness direction is 0.01 MPa or more and 0.05 MPa or less. (B) The arithmetic mean roughness Ra of the surface of the artificial skin sheet is between 5 μm and 10 μm.

[0019] In this disclosure, the Asker C hardness of the skin-attached member is the value at room temperature (e.g., 25°C). Furthermore, the compressive stress when the artificial skin sheet used is indented to a depth of 2 mm in the thickness direction is also the value at room temperature (e.g., 25°C).

[0020] The embodiments will be described in detail below with reference to the drawings. However, unnecessary details may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. This is to avoid the following explanation becoming unnecessarily verbose and to facilitate understanding for those skilled in the art.

[0021] The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0022] (Embodiment 1) The embodiments will be described below with reference to Figures 1 to 8.

[0023] [1-1. Structure] The care device in Embodiment 1 is a care device that is in contact with or attached to the skin. The care device in this embodiment comprises a skin-attaching member containing an elastomer. The skin-attaching member has an Asker C hardness of 30 or less and a static friction coefficient of 3 or less. In this embodiment, the Asker C hardness and static friction coefficient of the skin-attaching member are the Asker C hardness and static friction coefficient of the surface of the skin-attaching member that comes into contact with the skin when the care device is in contact with or attached to the skin. Here, the static friction coefficient is the static friction coefficient with respect to an artificial skin sheet that satisfies the following characteristics (A) and (B). (A) The compressive stress when the artificial skin sheet is indented to a depth of 2 mm in the thickness direction is 0.01 MPa or more and 0.05 MPa or less. (B) The arithmetic mean roughness Ra of the surface of the artificial skin sheet is between 5 μm and 10 μm.

[0024] As an artificial skin sheet possessing the characteristics described above, for example, "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. can be used.

[0025] The care device in this embodiment, by including a skin-attaching member having the above configuration, can improve the comfort level when it comes into contact with the skin and when it is attached to the skin.

[0026] In this embodiment, the characteristics (A) and (B) of the artificial skin sheet used to determine the static friction coefficient of the skin-attached member are obtained by the method described below.

[0027] Human skin has a multilayered structure consisting of the epidermis, dermis, and subcutaneous tissue, and is a laminate of layers, each with a different elastic modulus. The average thickness of skin is about 2 mm. The softness of the laminate can be evaluated by the stress and strain in response to the indentation force on the surface of the laminate. Therefore, the softness of human skin was evaluated from the strain and stress when an indentation force was applied to the skin surface. In this disclosure, the compressive stress obtained from the rebound force when an indentation force of 2 mm in the thickness direction was applied to the surface of an artificial skin sheet was used as an index of human skin softness.

[0028] The compressive stress at a depth of 2 mm was determined by using a force gauge system such as the ZTA-50N or MX2-500N-FA (manufactured by IMADA) at room temperature. A cylindrical probe with a diameter of 5 mm was used to measure the load when a 2 mm indentation was applied to the surface of the sample (i.e., human skin) at a speed of 10 mm / min. The compressive stress at a depth of 2 mm in human skin was measured at five points each on the palm and upper arm.

[0029] The compressive stress of human skin when indented to a depth of 2 mm was in the range of 0.01 MPa to 0.05 MPa. Similar measurements were performed on "BIOSKIN BPS-01L," a type of artificial skin manufactured by Regina Co., Ltd., and the compressive stress when indented to a depth of 2 mm was 0.026 MPa. From this, it can be confirmed that the physical properties of "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. are within the range of the compressive stress of human skin when indented to a depth of 2 mm, and are close to those of human skin.

[0030] The surface of human skin has an uneven shape based on wrinkles, pores, etc. This surface characteristic due to the uneven shape can be expressed by surface roughness. Regarding the surface roughness of human skin, Non-Patent Literature 1 shows that the arithmetic mean roughness Ra of the cheek skin of women in their 20s to 50s is in the range of 5 μm to 16 μm. When the surface roughness of "BIOSKIN BPS-01L," a type of artificial skin manufactured by Regina Co., Ltd., was evaluated, the arithmetic mean roughness Ra was found to be 8.0 μm. From this, it can be confirmed that the arithmetic mean roughness Ra of "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. is within the range of the arithmetic mean roughness of human skin and is close to that of human skin. The arithmetic mean roughness Ra of "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. was measured using a shape analysis laser microscope manufactured by Keyence, and the average value was calculated from three measurements.

[0031] In this embodiment, to determine the static friction coefficient of the skin-attached member, a commercially available artificial skin with properties close to those of human skin is used, having a compressive stress of 0.01 MPa to 0.05 MPa when pressed to a depth of 2 mm, and an arithmetic mean roughness Ra of 5 μm to 10 μm. In this embodiment, such an artificial skin is used, for example, "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd.

[0032] The care device in this embodiment includes at least a skin-contacting member having an Asker C hardness of 30 or less and a static friction coefficient of 3 or less with respect to an artificial skin sheet having the characteristics of (A) and (B) described above, so that when the care device is in contact with or attached to the skin, the user can use the care device while feeling comfortable. Feeling comfortable can lead to effects such as relaxation, healing, and easier sleep.

[0033] The care device has a skin-attaching member having an Asker C hardness of at least 30 and a static friction coefficient of 3 or less with respect to an artificial skin sheet having the characteristics of (A) and (B) above. This skin-attaching member has a skin contact surface.

[0034] Figure 1 is a cross-sectional view showing an example of a care device in Embodiment 1. The care device 100 shown in Figure 1 has a configuration in which a skin-attaching member 1 is held by a frame 3. As shown in Figure 1, the skin-attaching member 1 may be, for example, a sheet. In this case, one surface of the skin-attaching member 1 is the part that comes into contact with the skin. Hereinafter, the part of the skin-attaching member 1 that comes into contact with the skin will be referred to as the skin contact surface 2. As shown in Figure 1, the skin-attaching member 1 may be held by the frame 3, or it may have a structure in which it is connected to the frame 3 by at least some support parts 4. The support parts 4 may be, for example, the ends of the skin-attaching member 1.

[0035] The shape of the skin-attaching member 1 of the care device 100 in this embodiment is not particularly limited, as it is appropriately determined according to the part of the person's body to which the care device is in contact or attached. As shown in Figure 1, the skin-attaching member 1 in the care device 100 in this embodiment may be, for example, in the form of a sheet.

[0036] The tensile strength of the skin-attached member 1 is, for example, 1 N / mm². 2 It may be larger. The tensile strength of the skin-attached member 1 is 1 N / mm 2 Due to its larger size, it can be used repeatedly without breaking, even when worn under tension against the skin.

[0037] The skin-attached member 1 may contain at least an elastomer and may be formed from, for example, a polymer material containing an elastomer. The skin-attached member 1 may be formed from an elastomer alone. For example, the skin-attached member 1 may be a single layer sheet made of elastomer.

[0038] In this embodiment, the skin-attached member 1 may have a multilayer structure including multiple layers. Figure 2 is a cross-sectional view showing an example of a skin-attached member having a multilayer structure. As shown in Figure 2, the skin-attached member 1 may include, for example, a base material 11 containing an elastomer, and a film 12 having a thickness of 100 μm or less, disposed on the surface of the base material 11 in a region 11a that faces the skin. The skin-attached member 1 may further include a film 13 disposed on the surface of the base material 11 in a region 11b that does not face the skin. The film 13 may have a thickness of 100 μm or less. If the base material 11 is, for example, a sheet, the region 11a on the surface of the base material 11 that faces the skin corresponds to one main surface (first main surface) of the base material 11, and the region 11b on the surface of the base material 11 that does not face the skin corresponds to the other main surface of the base material 11, i.e., the second main surface opposite the first main surface. Here, the main surface is the surface having the largest area.

[0039] As described above, by including a film 12 on the surface of the base material 11 that is at least in contact with the skin (region 11b), the coefficient of static friction of the surface of the skin-contacting member 11 can be easily reduced. Furthermore, the presence of the film 12 improves the strength of the skin-contacting member 1, resulting in increased tear resistance and friction resistance, thus improving the long-term durability of the skin-contacting member 1. Further provision of a film 13 can further improve the strength of the skin-contacting member 1 and thus further improve its long-term durability.

[0040] By having a film thickness of 100 μm or less, a pleasant feeling can be obtained when the skin-contacting member 1 comes into contact with the skin. If the film thickness of 12 is 50 μm or less, an even greater feeling of pleasantness can be obtained, and if it is 30 μm or less, an even greater feeling of pleasantness can be obtained with a natural feel. The thickness of the film 13 is not particularly limited, but it is desirable that it not be too thick so that the skin-contacting member 1 has the flexibility to conform to the surface shape of the skin when the care device is attached. The thickness of the film 13 may be, for example, 100 μm or less.

[0041] The film 12 may be bonded to the surface of the substrate 11 by utilizing the adhesive force of the elastomer contained in the substrate 11, the intermolecular forces between the elastomer and the film 12, or the van der Waals forces between the elastomer and the film 12. Alternatively, the substrate 11 and the film 12 may be welded together by thermal welding, or an adhesive layer may be provided on the film 21, and the film 12 may be bonded to the substrate 11 by this adhesive layer. The adhesive layer can be an adhesive, a moisture-curing adhesive such as a cyanoacrylate-based or silicone rubber-based adhesive, a solvent-volatilizing adhesive, a thermosetting adhesive, a two-component mixed adhesive, or a hot-melt adhesive. The explanation for bonding the film 13 to the surface of the substrate 11 is the same as for the film 12.

[0042] Examples of materials for film 12 and film 13 include thermoplastic elastomers such as polystyrene, polyurethane, polyester, polyolefin, acrylic resin, and polyvinyl chloride.

[0043] The adhesion between the substrate 11 and the film 12 is preferably 0.3N or higher in a peel test at a width of 15mm. In this embodiment, the peel test between the substrate 11 and the film 12 is performed according to the ASTM F88 test method. By having an adhesion between the substrate 11 and the film 12 of 0.3N or higher, it is possible to suppress the peeling of the film 12 from the substrate 11 during use, which can lead to appearance defects such as air bubbles forming at the interface.

[0044] The entire surface of the base material 11 may be covered with a film. That is, the base material 11 may be sealed with a film. Figures 3A and 3B are cross-sectional views showing a configuration in which the base material 11 is sealed with a film in the skin-attached member 1. Such a sealing structure can be obtained, for example, by joining film 12 and film 13 to each other on the side portion of the base material 11. Since the care device 100 is used in contact with the skin, it is required to have high water and oil resistance to moisture such as sweat on the skin, oil components such as sebum, and cosmetic components applied to the skin. Because the entire base material 11 containing elastomer is sealed with a film, the film is less likely to peel off from the edges of the skin-attached member 1 even when immersed in water or oil, or when strong force is applied. Film 12 and film 13 may be directly joined to each other, as shown in Figure 3A. Such joining may be, for example, heat welding. Furthermore, as shown in Figure 3B, the substrate 11 and the films 12 and 13 may be joined by an adhesive layer 24, and the films 12 and 13 may be joined to each other via an adhesive layer 14 on the side surface of the substrate 11. The adhesive layer may be an adhesive, a moisture-curing adhesive such as a cyanoacrylate-based or silicone rubber-based adhesive, a solvent-volatilizing adhesive, a thermosetting adhesive, a two-component mixed adhesive, or a hot-melt adhesive.

[0045] In this embodiment, the skin-wearing member may include, for example, a base material containing an elastomer and a coating containing powder disposed on the surface of the base material in an area that faces the skin. By applying a coating containing powder, a smoother feel can be achieved, resulting in a greater sense of comfort. Examples of powder materials include inorganic powders such as zinc oxide, titanium oxide, talc, kaolin, mica, silica, titanium dioxide, and iron oxide, and organic powders such as silicone resin, polyethylene, polypropylene, polyolefin, and acrylic. The coating containing powder may be formed by directly adhering the powder to the base material, or by applying a coating made by mixing the powder with a resin to the base material.

[0046] When a load of 1N is applied perpendicularly to the surface of the skin contact surface 2 of the skin-attaching member 1 using a cylindrical pressing jig with a diameter of 5mm, the vertical indentation depth should preferably be 1mm or more. This indentation depth is measured for the skin-attaching member 1 when it is installed on the care device 100. For example, if the skin-attaching member 1 is installed while being held by the frame 3 as shown in Figure 1, the above indentation depth is the value measured for the skin-attaching member 1 while it is held by the frame 3. When the care device 100 is in contact with or attached to the skin, a load is applied to the skin-attaching member 1, causing the skin contact surface 2 to deform to conform to the shape of the skin and easily fit to the skin. As the skin contact surface 2 fits to the skin, the person strongly feels the sensation of the skin contact surface 2 of the skin-attaching member 1. When the indentation depth of the skin-attaching member 1 measured under the above conditions is 1mm or more, the skin-attaching member 1 fits easily to the skin, and a high level of comfort can be felt. When a load of 1N is applied perpendicularly to the surface of the skin-contact surface 2 of the skin-attaching member 1 using a cylindrical pressing jig with a diameter of 5mm, if the vertical pressing depth is 5mm or more, the skin-contact surface 2 will fit better to the skin, and a greater sense of comfort can be felt.

[0047] Materials that can be used as elastomers in the skin-contacting member 1 include, for example, silicone, polystyrene, polyurethane, polyester, polyolefin, acrylic, and polyvinyl chloride. The elastomer in the skin-contacting member 1 may be, for example, a gel mainly composed of polystyrene, a gel mainly composed of silicone, or silicone rubber. A gel mainly composed of polystyrene means a gel in which polystyrene is the most abundant component. The same applies to a gel mainly composed of silicone. By using a gel mainly composed of polystyrene, a gel mainly composed of silicone, or silicone rubber as the elastomer, it is possible to obtain a soft and pleasant feel while maintaining high biocompatibility and being relatively inexpensive.

[0048] In Embodiment 1, the skin-attached member 1 may be formed from a polymer material containing an elastomer. The polymer material may also contain, as a component other than the elastomer, for example, polyolefin resin, vinyl resin, acrylic resin, polyester resin, polycarbonate resin, polystyrene resin, polyamide resin, epoxy resin, etc.

[0049] The care device 100 in this embodiment may be, for example, a care device that is in contact with or attached to the skin around the face or neck. By including the skin attachment member 1 as described above in the care device 100, a pleasant sensation can be obtained by contacting or attaching the care device 100 to the skin around the face or neck, and a beauty effect similar to that of an esthetician can be obtained on the skin around the face or neck.

[0050] The care device 100 in this embodiment may be, for example, a care device that is in contact with or attached to the skin around the eyes. By including the skin-attaching member 1 as described above, the care device 100 can provide a pleasant stimulation when in contact with or attached to the skin around the eyes, relieving eye fatigue and providing a beauty-enhancing effect on the skin around the eyes, similar to a spa treatment. Furthermore, stimulation around the eyes can provide a feeling of relaxation and promote sleep.

[0051] The care device 100 is equipped with a mechanism designed to provide appropriate physical stimulation depending on the part of the person's body it is in contact with or worn on. Such a mechanism can utilize mechanisms already known for use in care devices for various parts of the human body, such as facial care devices, neck care devices, and eye care devices.

[0052] [1-2. Operation] The care device 100, configured as described above, can be attached to or in contact with a person's skin via the skin-attaching member 1, and can provide appropriate physical stimulation depending on the part of the person's body to which it is attached. When using the care device 100, the person comes into contact with the skin-attaching member 1. Therefore, the care device 100 can provide appropriate aesthetic and massage effects while improving the pleasant feeling when it is in contact with the skin and when it is attached to the skin.

[0053] [1-3. Effects, etc.] As described above, the care device 100 in Embodiment 1 is a care device that is in contact with or attached to the skin. The care device 100 in Embodiment 1 comprises a skin-attaching member 1 containing an elastomer. The skin-attaching member 1 has an Asker C hardness of 30 or less and a static friction coefficient of 3 or less. In Embodiment 1, the Asker C hardness and static friction coefficient of the skin-attaching member 1 are the Asker C hardness and static friction coefficient of the surface of the skin-attaching member 1 that comes into contact with the skin when the care device 100 is in contact with or attached to the skin. Here, the static friction coefficient of the skin-attaching member 1 is the static friction coefficient with respect to an artificial skin sheet having the characteristics of (A) and (B) above. As such an artificial skin sheet, for example, "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. can be used.

[0054] With this configuration, the care device 100 in Embodiment 1 can improve the comfort it provides when it comes into contact with the skin and when it is worn on the skin.

[0055] In Embodiment 1, the tensile strength of the skin-attached member 1 is, for example, 1 N / mm². 2 It may be larger than this. The tensile strength of the skin-attaching member 1 is 1 N / mm 2 Being larger allows for repeated use without damage, even when worn under tension against the skin.

[0056] In Embodiment 1, the skin-attached member 1 may include, for example, a base material 11 containing an elastomer, and a film 12 having a thickness of 100 μm or less, disposed on the surface of the base material 11 in a region 11a that faces the skin. By including the film 12 disposed on the surface of the base material 11 in a region 11b that faces the skin, it becomes easier to reduce the static friction coefficient of the surface of the skin-attached member 11 that comes into contact with the skin. Furthermore, the presence of the film 12 improves the strength of the skin-attached member 1, resulting in improved long-term durability of the skin-attached member 1, such as reduced tearing and increased resistance to friction.

[0057] In Embodiment 1, it is desirable that the adhesion force between the substrate 11 and the film 12 be 0.3 N or higher in a peel test at a width of 15 mm. By having an adhesion force of 0.3 N or higher between the substrate 11 and the film 12, it is possible to suppress the peeling of the film 12 from the substrate 11 during use, which can lead to appearance defects such as air bubbles forming at the interface.

[0058] In Embodiment 1, the entire surface of the base material 11 may be covered with a film. That is, the base material 11 may be sealed with a film. By sealing the entire base material 11 containing the elastomer with a film, the film is less likely to peel off from the edges of the skin-attached member 1, even when immersed in water or oil, or when strong force is applied.

[0059] In Embodiment 1, the care device 100 may further include a powder-containing coating disposed on the surface of the skin contact surface 2 of the skin-attached member 1. By applying a powder-containing coating, a smoother texture can be felt, resulting in a greater sense of comfort.

[0060] In Embodiment 1, when a load of 1N is applied perpendicularly to the surface of the skin contact surface 2 of the skin-attached member 1 using a cylindrical pressing jig with a diameter of 5mm, the vertical indentation depth is preferably 1mm or more. With this configuration, when the care device 100 is in contact with or attached to the skin, a load is applied to the skin-attached member 1, causing the skin contact surface 2 to deform to match the shape of the skin and fit easily to the skin. As the skin contact surface 2 fits the skin, the person strongly feels the sensation of the skin contact surface 2 of the skin-attached member 1. When the indentation depth of the skin-attached member 1 measured under the above conditions is 1mm or more, the skin-attached member 1 fits easily to the skin, and a high level of comfort can be felt. If the vertical indentation depth when a load of 1N is applied perpendicularly to the surface of the skin contact surface 2 of the skin-attached member 1 using a cylindrical pressing jig with a diameter of 5mm is 5mm or more, the skin contact surface 2 will fit the skin more closely, and a higher level of comfort can be felt.

[0061] In Embodiment 1, the elastomer contained in the skin-wearing member 1 may be, for example, a gel mainly made of polystyrene, a gel mainly made of silicone, or silicone rubber. By using a polystyrene-based gel, a silicone-based gel, or silicone rubber as the elastomer, it is possible to obtain a soft and pleasant feel while maintaining high biocompatibility and being relatively inexpensive.

[0062] In Embodiment 1, the skin-contacting member 1 may be formed from a polymer material containing an elastomer. This configuration allows for a relatively inexpensive yet soft and pleasant feel.

[0063] In Embodiment 1, the care device 100 may be, for example, a care device that is in contact with or attached to the skin around the face or neck. By providing the skin-attaching member 1 as described above, the care device 100 can provide a pleasant stimulation when in contact with or attached to the skin around the face or neck, and can provide a beauty effect similar to that of an esthetician to the skin around the face or neck.

[0064] In Embodiment 1, the care device 100 may be, for example, a care device that is in contact with or attached to the skin around the eyes. By including the skin-attaching member 1 as described above, the care device 100 can provide a pleasant stimulation when in contact with or attached to the skin around the eyes, relieving eye fatigue and providing beauty-enhancing effects to the skin around the eyes, similar to those of an esthetician.

[0065] (Other embodiments) As described above, embodiments have been explained as examples of the technology disclosed in this application. However, the technology in this disclosure is not limited to these embodiments and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in the above embodiments.

[0066] Therefore, other embodiments are illustrated below.

[0067] Figure 4 is a cross-sectional view showing a first modified example of the care device in Embodiment 1. As shown in Figure 4, the first modified example, the care device 200, has a configuration in which a base member 5 is further provided compared to the care device 100 shown in Figure 1. In the care device 200, the base member 5 is provided at a position opposite to the skin relative to the skin attachment member 1 when the skin attachment member 1 is attached to the skin, and contacts at least a portion of the part of the skin attachment member 1 that does not come into contact with the skin. The part of the skin attachment member 1 that does not come into contact with the skin is, for example, the surface opposite to the skin contact surface 2 of the skin attachment member 1. The 10% compressive stress of the base member 5 is 0.2 MPa or less. Because the 10% compressive load of the base member 5 is 0.2 MPa or less, the base member 5 is easily compressed when a load is applied to the surface of the skin contact surface 2 of the skin attachment member 1. Therefore, the surface of the skin contact surface 2 of the skin attachment member 1 becomes easily deformable, and when the care device 200 is in contact with or attached to the skin, the skin contact surface 2 can deform to conform to the shape of the skin. This allows the skin contact surface 2 to fit more easily to the skin, and as the skin contact surface 2 fits more closely to the skin, the person feels the sensation of the skin contact surface 2 of the skin-attached member 1 more strongly. In this way, by providing the base member 5, the skin-attached member 1 fits more easily to the skin, and a greater sense of comfort can be felt. If the 10% compressive stress of the base member 5 is 0.013 MPa or less, the base member 5 will be more easily compressed when a load is applied to the surface of the skin contact surface 2 of the skin-attached member 1, the skin-attached member 1 will fit more closely to the skin, and a greater sense of comfort can be felt. The 10% compressive stress of the base member 5 can be measured by the method described in the embodiments below.

[0068] The area of ​​the skin-contacting surface 2 of the skin-contacting component 1 is 4 cm². 2 A larger size is desirable. A larger contact area with the skin allows the user to feel the skin-attached component 1 more strongly. The area of ​​the skin-attached surface 2 of the skin-attached component 1 is 4 cm². 2 The larger size allows the skin-contacting component 1 to be more easily felt when the care device 100 is in contact with or attached to the skin, resulting in a greater sense of comfort. The area of ​​the skin-contacting surface 2 of the skin-contacting component 1 is 9 cm². 2When the area is equal to or larger than the above value, the feel of the skin-attaching member 1 can be more easily perceived, and a higher level of comfort can be obtained. The area of the skin-attaching surface 2 of the skin-attaching member 1 is 15cm 2 When the area is equal to or larger than the above value, the feel of the skin-attaching member 1 can be more easily perceived, and a higher level of comfort can be obtained. The area of the skin-attaching surface 2 of the skin-attaching member 1 is 25cm 2 When the area is equal to or larger than the above value, the feel of the skin-attaching member 1 can be more easily perceived, and a higher level of comfort can be obtained.

[0069] Figure 5 is a cross-sectional view showing a second modified example of the care device in Embodiment 1. As shown in Figure 5, the second modified example, care device 300, has a configuration in which a heating element 6 is further provided compared to the care device 100 shown in Figure 1. The care device 300 is equipped with a heating element 6 whose temperature can be continuously controlled. By providing a heating element 6 whose temperature can be continuously controlled, it becomes possible to use the care device 300 while feeling warmth, resulting in an improved sense of comfort. In addition, warming the skin improves blood circulation, resulting in effects such as beauty effects, massage effects, and improved metabolism, and feeling warmth provides a relaxing effect. For example, the installation position of the heating element 6 is not particularly limited and may be installed anywhere on the care device 300. Furthermore, as shown in Figure 5, the heating element 6 may be provided, for example, at a position opposite to the skin when the skin-attaching member 1 is attached to the skin, and in contact with at least a part of the part of the skin-attaching member 1 that does not come into contact with the skin. The portion of the skin-attached member 1 that does not come into contact with the skin is, for example, the position opposite to the skin when the skin-attached member 1 is attached to the skin, and is, for example, the surface opposite to the skin-contact surface 2 of the skin-attached member 1. By providing the heating element 6 on a portion of the skin-attached member 1 that does not come into contact with the skin, the heating element 6 can directly heat the skin-attached member 1. Therefore, a warming sensation can be efficiently provided with low power. For example, the heating element 6 may be installed somewhere on the care device 300, and may be positioned so that the heating element 6 comes into contact with a portion of the skin-attached member 1 that does not come into contact with the skin only when the skin-attached member 1 is attached to the skin. In this case, since the heating element 6 is not installed on the skin-attached member 1 when it is not attached to the skin, the feel of the skin-attached member 1 is improved when attached, and a warming sensation can be efficiently provided with low power after attachment. For example, electric heating wire heaters, infrared heaters, far-infrared heaters, hot water heaters, sheathed heaters, Peltier elements, etc. can be used as heating elements.

[0070] The care device 100 shown in Figure 1 may further include a cooling control unit for cooling the skin-contacting member 1. This configuration can enhance comfort by providing a cooling sensation to the skin, and the cooling stimulation can tighten the skin, providing a beauty effect. Examples of cooling control units that can be used include a Peltier element, water cooling, air cooling, and cooling packs.

[0071] Figure 6 is a cross-sectional view showing a third modified example of the care device in Embodiment 1. As shown in Figure 6, the third modified example, the care device 400, has a configuration in which a vibrator 7 is further provided in addition to the care device 100 shown in Figure 1. The care device 400 includes a vibrator 7 that vibrates the skin-attached member 1. By providing a vibrator 7 that can vibrate the skin-attached member 1, it becomes possible to use the care device 400 while performing a massage by vibration, which not only enhances the feeling of comfort but also relaxes muscles, etc. Therefore, the care device 400 can provide effects such as reducing fatigue and providing beauty benefits. For example, the vibrator 7 may be installed on some part of the care device 400. As shown in Figure 6, the vibrator 7 may, for example, be provided at a position opposite to the skin when the skin-attached member 1 is attached to the skin, and in contact with at least a part of the part of the skin-attached member 1 that does not come into contact with the skin. The portion of the skin-attaching member 1 that does not come into contact with the skin is, for example, the position opposite to the skin when the skin-attaching member 1 is attached to the skin, and is, for example, the surface opposite to the skin-contact surface 2 of the skin-attaching member 1. By providing the vibrator 7 on a part of the portion of the skin-attaching member 1 that does not come into contact with the skin, vibration can be directly applied to the skin-attaching member 1. Therefore, vibration can be applied efficiently with low power. For example, the vibrator 7 may be installed somewhere on the care device. The vibrator 7 may be installed so that it comes into contact with a part of the portion of the skin-attaching member 1 that does not come into contact with the skin only when the skin-attaching member 1 is attached to the skin. In this case, since the vibrator 7 is not installed on the skin-attaching member 1 when it is not attached to the skin, the feel of the skin-attaching member 1 is improved when attached, and vibration can be applied efficiently with low power after attachment.

[0072] Figure 7 is a cross-sectional view showing a fourth modified example of the care device in Embodiment 1. As shown in Figure 7, the fourth modified example, the care device 500, has a configuration in which a heating element 6 and a vibrator 7 are further provided compared to the care device 100 shown in Figure 1. The heating element 6 and vibrator 7 are as described above. By providing both the heating element 6 and the vibrator 7, the care device 500 can be used while providing massage by vibration in addition to the sensation of warmth. Therefore, with the care device 500, it is possible to further enhance the feeling of comfort, and simultaneously obtain effects such as fatigue reduction and beauty effects.

[0073] Figure 8 is a cross-sectional view showing a fifth modification of the care device in Embodiment 1. As shown in Figure 8, the fifth modification of the care device further includes a vibration assist jig 8 in addition to the care device 100 shown in Figure 1. The vibration assist jig 8 is provided on a portion of the skin-attaching member 1 that does not come into contact with the skin when the skin-attaching member 1 is attached to the skin. The portion of the skin-attaching member 1 that does not come into contact with the skin is, for example, a position on the opposite side of the skin from the skin when the skin-attaching member 1 is attached to the skin, for example, a surface opposite to the skin-contact surface 2 of the skin-attaching member 1. The vibration assist jig 8 has, for example, a mass of 0.02 g / cm² per unit area. 2 It consists of the above solid material and has a mass of 500g or less. When such a vibration assist jig 8 is installed, vibrations are transmitted to the vibration assist jig 8, causing it to vibrate. If the mass per unit area is large, the vibrations transmitted to the skin in the area where the vibration assist jig 8 is installed will be stronger. 2 When the vibration-assisting jig 8, made of the above solid material, is installed, the vibrations transmitted to the skin in the area where the vibration-assisting jig 8 is installed become stronger, resulting in a stronger vibration sensation when the care device is in contact with or attached to the skin. Furthermore, if the overall mass of the vibration-assisting jig 8 increases, the mass of the care device itself increases, making it feel heavy and uncomfortable when worn. If the overall mass of the vibration-assisting jig 8 is 500g or less, the care device is not heavy and can be worn comfortably. The vibration-assisting jig 8 has a mass of 0.03g / cm³ per unit area. 2The above solid material may also be used. In this case, the vibration applied to the skin in the area where the vibration assist jig 8 is installed will be stronger. Mass per unit area is 0.2 g / cm². 2 The above-mentioned solid material may also be used. In this case, the vibrations delivered to the skin in the area where the vibration assist jig 8 is installed will be stronger. This will increase the sensation of vibration in the area where the vibration assist jig 8 is installed when the care device is in contact with or attached to the skin, making it possible to provide strong stimulation to a part of the skin. Furthermore, the total mass of the vibration assist jig 8 may be 100g or less. If the total mass of the vibration assist jig 8 is 100g or less, the mass of the care device will be reduced, making it more comfortable to wear.

[0074] Figure 9 is a cross-sectional view showing a sixth modified example of the care device in Embodiment 1. As shown in Figure 9, the sixth modified example, care device 600, further includes a vibrator 7 and a vibration assist jig 8 compared to the care device 100 shown in Figure 1. The vibrator 7 and vibration assist jig 8 are as described above. By including both the vibrator 7 and the vibration assist jig 8, care device 600 can strengthen the vibrations from the vibrator 7 that are applied to the skin in the area where the vibration assist jig 8 is installed. Therefore, care device 600 can partially strengthen the vibrations from the vibrator 7 using the vibration assist jig 8 to provide strong stimulation to a part of the skin.

[0075] The care device 100 shown in Figure 1 may further include a pressure changing unit that changes the pressure applied to the skin-contacting member 1. This configuration allows pressure to be applied to the skin, which can enhance comfort or provide a massage effect. For example, an airbag, a jig operated by a motor, etc., can be used as the pressure changing unit.

[0076] The care device 100 shown in Figure 1 may further include a tensile force changing unit that changes the tensile force applied to the skin-contacting member 1. This configuration allows for optimal tensile force application to the skin-contacting member, thereby improving skin fit and preventing damage to the member by suppressing excessive tensile force. As the tensile force changing unit, an actuator, a frame or belt with adjustable length, etc., can be used, which can be installed at the end of the skin-contacting member and change its length to reversibly apply tensile force to the skin-contacting member.

[0077] The care device 100 shown in Figure 1 may further include a skin area detection unit that detects the area of ​​skin to which the care device 100 is in contact or attached, and a temperature control unit that controls the temperature by heating or cooling the skin-attached member 1 according to the result detected by the skin area detection unit. This configuration allows for optimal hot and cold stimulation to be applied to the skin area, further enhancing comfort, and promoting blood flow through repeated heating and cooling, thereby providing beauty benefits. For example, a camera or infrared light can be used as the skin area detection unit. The temperature control unit may be one that holds the heating element and the cooling control unit as exemplified above, thereby maintaining both heating and cooling functions.

[0078] The care device 400, shown in Figure 6 and equipped with a vibrator 7, may further include a skin area detection unit that detects the area of ​​skin to which the care device 400 is in contact or attached, and a system that controls the amount of vibration of the vibrator 7 according to the results detected by the skin area detection unit. This configuration allows for optimal vibration to be applied to the skin area, thereby enhancing comfort and providing a massage effect. The skin area detection unit can be one of those exemplified above. The system for controlling the amount of vibration may include, for example, a device that can control the amount of vibration or vibration pattern of the vibrator.

[0079] The care device 100 shown in Figure 1 may further include a skin area detection unit that detects the area of ​​skin to which the care device 100 is in contact or attached, and a pressure change unit that changes the pressure applied to the skin-attached member 1 according to the results detected by the skin area detection unit. This configuration allows for the application of optimal pressure to the skin area, thereby enhancing comfort and massage effects. The skin area detection unit and the pressure change unit can be the ones exemplified above, respectively.

[0080] The care device 100 shown in Figure 1 may further include a skin area detection unit that detects the area of ​​skin to which the care device 100 is in contact or attached, and a tensile force changing unit that changes the tensile force applied to the skin attachment member 1 according to the results detected by the skin area detection unit. This configuration allows for the application of an optimal tensile force to the skin area, and even if the shape of the skin, the position and size of the attachment part, or the shape of the skin changes, it is possible to improve the fit to the skin or prevent the skin attachment member from being damaged by suppressing excessive tensile force. The skin area detection unit and the tensile force changing unit can be the ones exemplified above, respectively.

[0081] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0082] (Technology 1) Equipped with a skin-contacting member containing elastomer, The skin-attached member has a hardness of Asker C 30 degrees or less and a static friction coefficient of 3 or less. A care device that comes into contact with or is worn on the skin. Here, the static friction coefficient is the static friction coefficient for an artificial skin sheet that satisfies the following characteristics (A) and (B). (A) The compressive stress when the artificial skin sheet is indented to a depth of 2 mm in the thickness direction is 0.01 MPa or more and 0.05 MPa or less. (B) The arithmetic mean roughness Ra of the surface of the artificial skin sheet is between 5 μm and 10 μm.

[0083] This configuration allows the care device in Technology 1 to improve the comfort it provides when it comes into contact with the skin and when it is worn on the skin.

[0084] (Technology 2) The tensile strength of the skin-attached member is 1 N / mm². 2 Larger care devices as described in Technology 1.

[0085] This configuration allows the care device in Technology 2 to be used repeatedly without damage, even when attached to the skin under tension.

[0086] (Technology 3) The aforementioned skin-attaching member, A substrate containing the elastomer, A film having a thickness of 100 μm or less is disposed on the surface of the substrate in an area that is in contact with the skin, Care devices as described in Technology 1 or 2, including the following.

[0087] This configuration makes it easier for the care device in Technology 3 to reduce the static friction coefficient of the surface of the skin-contacting member that comes into contact with the skin. In addition, the presence of the film improves the strength of the skin-contacting member, resulting in increased tear resistance and friction resistance, thus improving the long-term durability of the skin-contacting member.

[0088] (Technology 4) The care device according to Technology 3, wherein the adhesion force between the substrate and the film is 0.3 N or more in a peel test with a width of 15 mm.

[0089] This configuration has the effect of suppressing the occurrence of appearance defects such as the film peeling off from the substrate during use and air bubbles forming at the interface.

[0090] (Technology 5) The film covers the entire surface of the substrate. The care device according to claim 3 or 4.

[0091] This configuration makes it difficult for the film to peel off from the edges of the skin-contacting component, even when immersed in water or oil, or when subjected to strong force.

[0092] (Technology 6) The aforementioned skin-attaching member, A substrate containing the elastomer, A coating containing powder is disposed on the surface of the substrate in an area facing the skin, Care devices as described in any one of the following technologies, from Technology 1 to Technology 5.

[0093] This configuration allows for a smoother, more pleasant texture, resulting in a highly comfortable experience.

[0094] (Technology 7) When a load of 1N is applied perpendicular to the surface of the part of the skin-attaching member that comes into contact with the skin using a cylindrical pressing jig with a diameter of 5mm, the vertical pressing depth is 1mm or more. A care device described in any one of the six technical specifications (Technology 1 to Technology 6).

[0095] This configuration allows the skin-contacting components to fit easily against the skin, resulting in a highly comfortable experience.

[0096] (Technology 8) Further equipped with base materials, The base member is provided at a position opposite to the skin relative to the skin-attaching member when the skin-attaching member is attached to the skin, and is in contact with at least a portion of the part of the skin-attaching member that does not come into contact with the skin. The 10% compressive stress of the aforementioned base material is 0.2 MPa or less. A care device described in any one of the following items from Technology 1 to Technology 7.

[0097] This configuration allows the skin-contacting components to fit easily against the skin, resulting in a highly comfortable experience.

[0098] (Technology 9) The area of ​​the skin-contacting surface of the aforementioned skin-contacting member is 4 cm² 2 Larger, A care device described in any one of the eight techniques (Technology 1 to Technology 8).

[0099] This configuration makes it easier to feel the texture of the skin-contacting material, resulting in a greater sense of comfort.

[0100] (Technology 10) The elastomer is a gel mainly composed of polystyrene, a gel mainly composed of silicone, or silicone rubber. A care device described in any one of the following items from Technology 1 to Technology 9.

[0101] This configuration allows us to provide a care device that is highly safe for living organisms, relatively inexpensive, and provides a soft and pleasant tactile sensation.

[0102] (Technology 11) The skin-attached member is formed from a polymer material including the elastomer. A care device described in any one of the following items from Technology 1 to Technology 10.

[0103] This configuration allows us to provide care devices that are relatively inexpensive yet offer a soft and pleasant feel.

[0104] (Technology 12) It further includes a heating element that allows for continuous temperature control. A care device described in any one of the following items from Technology 1 to Technology 11.

[0105] This configuration allows users to use the care device while feeling a warming sensation, resulting in a more pleasant experience. Furthermore, warming the skin improves blood circulation, leading to beauty benefits, massage effects, and improved metabolism, while the warming sensation itself provides a relaxing effect.

[0106] (Technology 13) The cooling control unit further comprises a cooling control unit that cools the skin-attached member to control its temperature, A care device described in any one of the following items from Technology 1 to Technology 12.

[0107] This configuration allows for a cooling sensation on the skin, enhancing the feeling of comfort, and the cooling stimulation can tighten the skin, providing a beauty benefit.

[0108] (Technology 14) The skin-attached member further comprises a vibrator for vibrating the aforementioned skin-attached member. A care device described in any one of the following items from Technology 1 to Technology 13.

[0109] This configuration allows the care device to be used while performing a massage with vibrations, which not only enhances the feeling of comfort but also helps to relax muscles and other tissues.

[0110] (Technology 15) Equipped with a vibration assist jig, The vibration assist jig is provided on a portion of the skin-attaching member that does not come into contact with the skin when the skin-attaching member is attached to the skin. The vibration assist jig has a mass of 0.02 g / cm² per unit area. 2 It consists of the above solid materials and has a mass of 500g or less. A care device described in any one of the following items from Technology 1 to Technology 14.

[0111] In this configuration, vibrations are transmitted to the vibration assist jig, causing it to vibrate. A larger mass per unit area results in stronger vibrations being transmitted to the skin in the area where the vibration assist jig is installed. 2 When the vibration-assisting jig, which consists of the solid materials described above, is installed, the vibrations transmitted to the skin in the area where the vibration-assisting jig is installed become stronger, thereby increasing the sensation of vibration when the care device is in contact with or attached to the skin.

[0112] (Technology 16) The system further includes a pressure changing unit that changes the pressure applied to the skin-attaching member. A care device described in any one of the following items from Technology 1 to Technology 15.

[0113] This configuration allows for pressure to be applied to the skin, which can enhance the feeling of comfort and provide a massage effect.

[0114] (Technology 17) The system further includes a tensile force changing unit that changes the tensile force applied to the skin-attached member. A care device described in any one of the following items from Technology 1 to Technology 16.

[0115] This configuration allows for optimal tensile force application to the skin-contacting component, resulting in a better fit to the skin, and also prevents damage to the component by suppressing excessive tensile force.

[0116] (Technology 18) A skin area detection unit that detects the area of ​​skin to which the care device is in contact or attached, A temperature control unit controls the temperature of the skin-attached member by heating or cooling it according to the results detected by the skin area detection unit, A care device further comprising any one of the technologies described in Technology 1 to Technology 17.

[0117] This configuration allows for optimal hot and cold stimulation to specific areas of the skin, enhancing comfort and promoting blood flow through repeated heating and cooling, thus providing beauty benefits.

[0118] (Technology 19) A skin area detection unit that detects the area of ​​skin to which the care device is in contact or attached, A system that changes the vibration amount of the vibrator according to the results detected by the skin area detection unit, The care device described in Technology 14 further includes the following features.

[0119] This configuration allows for optimal vibration to be applied to specific areas of skin, resulting in enhanced comfort and a massage-like effect.

[0120] (Technology 20) The care device further comprises a skin area detection unit that detects the area of ​​skin to which the device is in contact or attached. The pressure change unit changes the pressure applied to the skin-attached member according to the result detected by the skin area detection unit. Care devices as described in Technical 16.

[0121] This configuration allows for optimal pressure to be applied to different areas of the skin, resulting in a more pleasant and effective massage experience.

[0122] (Technology 21) The care device further comprises a skin area detection unit that detects the area of ​​skin to which the device is in contact or attached. The tensile force changing unit changes the tensile force applied to the skin-attached member according to the result detected by the skin area detection unit. Care devices as described in Technical 17.

[0123] This configuration allows for optimal tensile force to be applied to the skin area, and even if the skin shape, the position and size of the attachment area, or the shape of the skin changes, it is possible to improve the fit to the skin and prevent the skin attachment material from being damaged by suppressing excessive tensile force.

[0124] (Technology 22) It is applied to or attached to the skin around the face or neck. A care device described in any one of the following items from Technology 1 to Technology 21.

[0125] By applying or attaching the care device to the face or neck area, a pleasant stimulation can be obtained, and the skin around the face or neck can receive beauty treatments similar to those of a facial.

[0126] (Technology 23) It is applied to or attached to the skin around the eyes. A care device described in any one of the following items from Technology 1 to Technology 22.

[0127] By applying or wearing care devices around the eyes, a pleasant stimulation can be obtained, relieving eye strain and providing beauty-enhancing effects to the skin around the eyes, similar to a spa treatment. Furthermore, stimulation around the eyes can promote relaxation and improve sleep. [Examples]

[0128] The care devices of this disclosure will be further described by examples. The care devices of this disclosure are not limited to the following examples.

[0129] <Hardness measurement> For the evaluation of Asker C hardness, an "Asker Rubber Hardness Tester Type C" manufactured by Polymer Instruments Co., Ltd. was used, and measurements were taken at room temperature.

[0130] <Measurement of static friction coefficient> A sliding piece with a constant vertical load W was placed on the surface of the sample, and the frictional force F acting when the sliding piece was moved horizontally at a constant speed was measured. The static friction coefficient μ was then calculated using the following equation 1.

[0131] μ=F / W (Equation 1)

[0132] To measure the static friction coefficient against the artificial skin, "BIOSKIN BPS-01L" manufactured by Regina Co., Ltd. was used as the sliding piece. Under the condition of a vertical load W of 20g for a contact area of ​​20mm x 20mm of the sliding piece, the static friction coefficient at a moving speed of 100mm / min was measured using a force gauge system ZTA-50N and MX2-500N-FA (manufactured by IMADA Co., Ltd.).

[0133] <Example 1> (Preparation of skin-attached components) A sheet-like silicone gel (manufactured by Tanac Co., Ltd.) was prepared as a base material. The surface of this sheet was coated with a powder containing talc (manufactured by WAKODO). In this way, a skin-attaching member was prepared by applying a powder coating to the base material. The skin-attaching member had an Asker C hardness of 0 (C0) and a static friction coefficient against artificial skin of 1.5. This was designated as the skin-attaching member of Example 1. be,

[0134] (evaluation) The skin-attaching component from Example 1 was attached to an eye care device (Panasonic Eye Care Device) as a frame to create a care device. The comfort level of the eye area when the care device was attached to the eye area with the skin-contact surface of the skin-attaching component in contact with the skin was evaluated. Sixteen men and women aged 20 to 50 were the subjects. They sat supine in a reclining seat, placed the care device on their eyes, attached it for 10 seconds, and then removed it. This process was repeated three times, and then they were scored based on the evaluation criteria below, and the average score of the subjects was calculated.

[0135] Rating 7: Very pleasant Rating 6: Very pleasant Rating 5: Somewhat pleasant Rating 4: Neither agree nor disagree Rating 3: Somewhat unpleasant Rating 2: Not very pleasant Rating 1: Very unpleasant

[0136] Furthermore, the pleasantness of the tactile sensation when the skin-contacting surface of the skin-attaching component of the care device was brought into contact with the hand was evaluated. The evaluation method involved the subject's right hand being placed in contact with the skin-contacting surface of the skin-attaching component for 10 seconds, using the same method as for evaluating the tactile sensation around the eyes.

[0137] Regarding the care device in Example 1, the pleasantness of the feel around the eyes was rated 5.1 points, and the pleasantness of the feel on the hands was rated 6.1 points.

[0138] <Example 2> (Preparation of skin-attached components) A sheet-like styrene elastomer (manufactured by FK) was prepared as the base material for the skin-attached component. The surface of this base material was coated with a powder containing talc (manufactured by WAKODO). In this way, a skin-attached component was prepared by applying a powder coating to the base material. The skin-attached component had an Asker C hardness of 0 (C0) and a static friction coefficient against artificial skin of 1.2. This was used as the skin-attached component for Example 2.

[0139] (evaluation) Except for using the skin-attaching component from Example 2, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Example 2, the pleasantness of the feel around the eyes was 5.0 points, and the pleasantness of the feel of the hands was 5.8 points.

[0140] <Example 3> (Preparation of skin-attached components) A sheet of styrene-based elastomer (manufactured by Kuraray Trading Co., Ltd.) was prepared as the base material. A film consisting of a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer was laminated onto the surface of this base material, with the hot-melt adhesive layer facing the elastomer side. In this way, a skin-attached member with the film positioned on the surface of the base material was prepared. The Asker C hardness of the skin-attached member was 11 (C11), and the static friction coefficient against artificial skin was 0.7. This was designated as the skin-attached member of Example 3.

[0141] (evaluation) Except for using the skin-attaching component from Example 3, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Example 3, the pleasantness of the feel around the eyes was 4.6 points, and the pleasantness of the feel of the hands was 4.8 points.

[0142] <Example 4> (Preparation of skin-attached components) A skin-attaching component (manufactured by Tanac) was prepared, with an Asker C hardness of 5 (C5) and a static friction coefficient against artificial skin of 1.8. This skin-attaching component had a structure in which a sheet of polyurethane was coated with polyurethane resin on the surface of the sheet.

[0143] (evaluation) Except for using the skin-attaching component of Example 4, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Example 4, the pleasantness of the feel around the eyes was 4.7 points, and the pleasantness of the feel of the hands was 5.8 points.

[0144] <Example 5> (Preparation of skin-attached components) A sheet of silicone rubber (manufactured by Tanac) with an Asker C hardness of 30 (C30) and a static friction coefficient against artificial skin of 2.1 was prepared as the skin-attaching member for Example 5.

[0145] (evaluation) Except for using the skin-attaching component of Example 5, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device in the hand was evaluated. The pleasantness of the feel of the care device of Example 5 was rated at 4.4 points.

[0146] <Comparative Example 1> (Preparation of skin-attached components) A sheet of silicone rubber (manufactured by Kyowa Kogyo Co., Ltd.) with an Asker C hardness of 50 (C50) and a static friction coefficient against artificial skin of 1.3 was prepared as the skin-attaching component for Comparative Example 1.

[0147] (evaluation) Except for using the skin-attaching component from Comparative Example 1, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Comparative Example 1, the pleasantness of the feel around the eyes was 3.3 points, and the pleasantness of the feel of the hands was 3.1 points.

[0148] <Comparative Example 2> (Preparation of skin-attached components) A sheet-like silicone gel (manufactured by Tanac) with an Asker C hardness of 0 (C0) and a static friction coefficient against artificial skin of 4.3 was prepared as the skin-attaching member for Comparative Example 2.

[0149] (evaluation) Except for using the skin-attaching component of Comparative Example 2, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Comparative Example 2, the pleasantness of the feel around the eyes was 3.6 points, and the pleasantness of the feel of the hands was 3.1 points.

[0150] <Comparative Example 3> (Preparation of skin-attached components) A sheet of polyurethane (manufactured by Tanac) with an Asker C hardness of 0 (C0) and a static friction coefficient against artificial skin of 6.5 was prepared as the skin-attaching member for Comparative Example 3.

[0151] (evaluation) Except for using the skin-attaching component of Comparative Example 3, the care device was manufactured in the same manner as in Example 1, and the pleasantness of the feel of the care device around the eyes and hands was evaluated. For the care device of Comparative Example 3, the pleasantness of the feel around the eyes was 2.9 points, and the pleasantness of the feel of the hands was 1.8 points.

[0152] The results for Examples 1 to 5 are summarized in Table 1A, and the results for Comparative Examples 1 to 3 are summarized in Table 1B. In Examples 1 to 5, the comfort level of the care devices around the eyes and hands was rated at 4 points or higher, indicating a high level of comfort with the care devices. On the other hand, in Comparative Examples 1 to 3, the comfort level of the care devices around the eyes and hands was rated at less than 4 points, indicating a low level of comfort.

[0153] Figure 10 is a graph showing the relationship between the Asker C hardness of the skin-attached component and the pleasant feeling of the eyes and hands when using the care device. Figure 11 is a graph showing the relationship between the static friction coefficient of the skin-attached component against artificial skin and the pleasant feeling of the eyes and hands when using the care device.

[0154] [Table 1A]

[0155] [Table 1B]

[0156] <Example 6> (Preparation of skin-attached components) A film (manufactured by Kuraray Trading Co., Ltd.) was made by laminating a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer onto the surface of a sheet-like styrene elastomer (manufactured by Kuraray Trading Co., Ltd.). The hot-melt adhesive layer side was placed on the elastomer surface, and the side opposite to where the film was placed was heated at 110°C, followed by further heating in a constant-temperature bath at 140°C for 10 minutes. This produced a skin-wearing member having a film on the surface of a sheet-like elastomer. In this skin-wearing member, the sheet-like styrene elastomer corresponds to the substrate containing the elastomer, and the film, which is laminated with a polyurethane polymer film and a hot-melt adhesive layer, corresponds to the film placed on the surface of the substrate. The Asker C hardness and static friction coefficient against human skin were evaluated for this skin-wearing member using the same method as in Example 1. The Asker C hardness was C6, and the static friction coefficient against artificial skin was 0.7.

[0157] (Evaluation of adhesion between the base material and film in skin-attached components) The adhesion strength between the sheet-like elastomer, which corresponds to the elastomer-containing substrate, and the film of the skin-attaching member of Example 6, prepared using the method described above, was evaluated by a peel test, and the adhesion strength was found to be 1.48 N. The peel test was performed according to the ASTM F88 test method, using a 15 mm wide test piece, and the maximum tensile strength obtained when the film was peeled off at a speed of 200 mm / min. was measured using a force gauge system ZTA-50N, MX2-500N-FA (manufactured by IMADA).

[0158] To evaluate the durability of adhesion between the substrate and the film under the usage environment of the care device, a high-temperature and high-humidity test was conducted. The skin-attached component of Example 6 was left under high-temperature and high-humidity test conditions of 40°C and 95% for one week, and it was confirmed that there was no peeling of the film surface after the test.

[0159] <Example 7> (Preparation of skin-attached components) A film (manufactured by Kuraray Trading Co., Ltd.) was made by laminating a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer onto the surface of a sheet-like styrene elastomer (manufactured by Kuraray Trading Co., Ltd.). The hot-melt adhesive layer side was placed on the elastomer surface, and the film mounting surface was heated to 110°C. This produced a skin-attached member having a structure in which a film is provided on the surface of a sheet-like elastomer. In this skin-attached member, the sheet-like styrene elastomer corresponds to the substrate containing the elastomer, and the film made by laminating the polyurethane polymer film and the hot-melt layer corresponds to the film placed on the surface of the substrate. The Asker C hardness and the static friction coefficient against human skin were evaluated for this skin-attached member using the same method as in Example 1. The Asker C hardness was C6, and the static friction coefficient against artificial skin was 1.3.

[0160] (Evaluation of adhesion between the base material and film in skin-attached components) The skin-attached member of Example 7, prepared using the method described above, underwent adhesion evaluation and high-temperature / high-humidity testing in the same manner as in Example 6. The film's adhesion strength was found to be 0.48 N, and it was confirmed that there was no peeling of the film surface after the high-temperature / high-humidity test.

[0161] <Example 8> (Preparation of skin-attached components) A film (manufactured by Kuraray Trading Co., Ltd.) was made by laminating a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer onto the surface of a sheet-like styrene elastomer (manufactured by Kuraray Trading Co., Ltd.). The hot-melt adhesive layer side was placed on the elastomer surface, and the side opposite to where the film was placed was heated at 110°C. This produced a skin-wearing member having a film on the surface of a sheet-like elastomer. In this skin-wearing member, the sheet-like styrene elastomer corresponds to the substrate containing the elastomer, and the film made by laminating the polyurethane polymer film and the hot-melt layer corresponds to the film placed on the surface of the substrate. The Asker C hardness and static friction coefficient against human skin were evaluated for this skin-wearing member using the same method as in Example 1. The Asker C hardness was C6, and the static friction coefficient against artificial skin was 1.3.

[0162] (Evaluation of adhesion between the base material and film in skin-attached components) The skin-attached member of Example 8, prepared using the method described above, underwent adhesion evaluation and high-temperature / high-humidity testing in the same manner as in Example 6. The film's adhesion strength was found to be 0.34 N, and it was confirmed that there was no peeling of the film surface after the high-temperature / high-humidity test.

[0163] <Example 9> (Preparation of skin-attached components) A film (manufactured by Kuraray Trading Co., Ltd.) was made by laminating a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer onto the surface of a sheet-like styrene elastomer (manufactured by Kuraray Trading Co., Ltd.). The hot-melt adhesive layer side was placed on the elastomer surface, and the side opposite to where the film was placed was heated at 100°C. This produced a skin-wearing member having a film on the surface of a sheet-like elastomer. In this skin-wearing member, the sheet-like styrene elastomer corresponds to the substrate containing the elastomer, and the film made by laminating the polyurethane polymer film and the hot-melt layer corresponds to the film placed on the surface of the substrate. The Asker C hardness and static friction coefficient against human skin were evaluated for this skin-wearing member using the same method as in Example 1. The Asker C hardness was C6, and the static friction coefficient against artificial skin was 1.3.

[0164] (Evaluation of adhesion between the base material and film in skin-attached components) When the skin-attached member of Example 9, which was prepared using the method described above, was subjected to adhesion evaluation and high-temperature / high-humidity testing in the same manner as in Example 6, the adhesion strength of the film was 0.22 N, and peeling occurred in a part of the film after the high-temperature / high-humidity test.

[0165] Table 2 shows the results for Examples 6 to 9. A indicates no film peeling after the high-temperature, high-humidity test, while B indicates peeling. In Examples 6 to 8, the film did not peel after the high-temperature, high-humidity test, while in Example 9, some peeling occurred in the film after the test. Good results were obtained when the film adhesion strength measured by the peel test was 0.3 N or higher.

[0166] [Table 2]

[0167] <Example 10> (Preparation of skin-attached components) A sheet of styrene-based elastomer (manufactured by Tanac) was prepared as the base material. The surface of this sheet was coated with a powder containing talc (manufactured by WAKODO). In this way, a skin-attaching member was prepared by applying a powder coating to the base material. The skin-attaching member had an Asker C hardness of 13 (C13) and a static friction coefficient against artificial skin of 1.4. This was used as the skin-attaching member of Example 10.

[0168] (Tensile test) When using care devices, skin-contacting components are subjected to tensile forces, requiring durability against repeated tensile forces. Therefore, tensile strength evaluation and tensile durability tests were conducted on the skin-contacting components.

[0169] For the tensile strength test, a test specimen measuring 5 mm in width and 30 mm in length was prepared, and the stress at fracture was calculated using a Shimadzu Autograph (EZ-L) at a tensile speed of 100 mm / min. For the tensile durability test, a test specimen measuring 10 mm in width, 2 mm in thickness, and 30 mm in length was prepared using a 2 mm thick test specimen, and the presence or absence of fracture was evaluated when the pulling motion was repeated 300 times with a force of 2 N. The tensile strength of the skin-attached member in Example 10 was 10.2 N·mm. 2 Furthermore, it was confirmed that there was no breakage up to 300 tensile cycles.

[0170] <Example 11> (Preparation of skin-attached components) The same skin-attaching component as in Example 1 was prepared.

[0171] (Tensile test) The skin-mounted member of Example 11 was subjected to tensile strength evaluation and tensile durability testing in the same manner as in Example 10. The tensile strength of the skin-mounted member of Example 11 was 3.1 N·mm. 2 Furthermore, it was confirmed that there was no breakage up to 300 tensile cycles.

[0172] <Example 12> (Preparation of skin-attached components) A sheet of silicone gel (manufactured by Taica) was prepared as the base material. The surface of this sheet was coated with a powder containing talc (manufactured by WAKODO). In this way, a skin-attaching member was prepared by applying a powder coating to the base material. The skin-attaching member had an Asker C hardness of 0 (C0) and a static friction coefficient against artificial skin of 2.1. This was used as the skin-attaching member of Example 12.

[0173] (Tensile test) The skin-mounted member of Example 12 was subjected to tensile strength evaluation and tensile durability testing in the same manner as in Example 10. The tensile strength of the skin-mounted member of Example 12 was 1.0 N·mm². 2 It fractured within 300 tensile cycles.

[0174] The results for Examples 10 to 12 are shown in Table 3. A was defined as no fracture after 300 tensile cycles, and B as fracture within 300 cycles. Examples 10 and 11 showed no fracture after 300 tensile cycles, while Example 12 fractured within 300 tensile cycles. Therefore, elastomers with high tensile strength performed well in the tensile durability test.

[0175] [Table 3]

[0176] <Example 13> (Preparation of skin-attached components) A skin-attached member was obtained by laminating a 13 μm thick polyurethane polymer film and a hot-melt adhesive layer onto both sides of a sheet-like styrene elastomer (Kuraray Trading Co., Ltd.), with the hot-melt adhesive layer facing the elastomer, and then adhering the ends of the two films together with the adhesive layer to seal the entire surface of the sheet-like elastomer. In this skin-attached member, the sheet-like styrene elastomer corresponds to the substrate containing the elastomer, and the film laminating the polyurethane polymer film and hot-melt layer corresponds to the film placed on the surface of the substrate. When the Asker C hardness and static friction coefficient against human skin were evaluated for this skin-attached member using the same method as in Example 1, the Asker C hardness was C6 and the static friction coefficient against artificial skin was 0.6.

[0177] <Oil Resistance Evaluation> Since skin-attached components are used in contact with the skin, they are required to have minimal swelling and bleeding of oil components on the skin or cosmetic components applied to the skin, thus requiring high oil resistance. To evaluate oil resistance, silicone oil was used to simulate cosmetic components on the skin. The skin-attached component was immersed in silicone oil at 50°C for 3 days, and the rate of mass change from before immersion to after immersion was evaluated. KF-96-100CS silicone oil manufactured by Shin-Etsu Silicone was used, and the mass measurement after immersion was performed after wiping off the oil adhering to the skin-attached component. The mass of the skin-attached component in Example 13 after immersion decreased by 1% compared to before immersion.

[0178] <Example 14> (Preparation of skin-attached components) The same skin-attaching component as in Example 3 was prepared.

[0179] <Oil Resistance Evaluation> When the oil resistance of the skin-attached member of Example 14 was evaluated using the same method as in Example 13, the mass after immersion in silicone oil decreased by 49% compared to before immersion.

[0180] <Example 15> (Preparation of skin-attached components) The same skin-attaching component as in Example 2 was prepared.

[0181] <Oil Resistance Evaluation> When the oil resistance of the skin-attached member of Example 15 was evaluated using the same method as in Example 13, the mass after immersion in silicone oil decreased by 80% compared to before immersion.

[0182] The results of Examples 13 to 15 are shown in Table 4. Oil resistance was classified as A if the mass change before and after silicone oil immersion was 10% or less, B if it was 50% or less, and C if it was greater than 50%. By placing the film over the entire surface of the substrate containing the elastomer and joining the edges of the films together to seal them, the oil resistance was improved.

[0183] [Table 4]

[0184] <Example 16> (Evaluation of the insertion depth of the skin-attached component) Using the skin-contacting member from Example 6, it was cut to a width of 20 cm and a length of 7 cm. As shown in Figure 1, this skin-contacting member was joined at the support parts at both ends in the width direction of a frame that was 20 cm wide, 7 cm wide, and 5 cm deep, to create a care device. When a load of 1 N was applied perpendicularly to the surface of the skin-contacting surface of the skin-contacting member of this care device, the vertical indentation depth was measured to be 23 mm. The indentation depth was evaluated by measuring the vertical displacement of the skin-contacting member when a load was applied using a force gauge system ZTA-50N, MX2-500N-FA (manufactured by IMADA) and a cylindrical indentation jig with a diameter of 4 mm.

[0185] (Pleasure level rating) The care device fabricated in Example 16 was used to evaluate the pleasantness of the feel around the eyes when it was attached to the eye area with the skin-contact surface of the skin-attaching component in contact with the skin. Five men and women in their 40s and 50s participated as subjects. They then scored the device based on the following criteria, and the average of their scores was calculated.

[0186] Rating 7: Very pleasant Rating 6: Very pleasant Rating 5: Somewhat pleasant Rating 4: Neither agree nor disagree Rating 3: Somewhat unpleasant Rating 2: Not very pleasant Rating 1: Very unpleasant The pleasant feeling around the eyes was rated 6.3 points.

[0187] <Example 17> (Evaluation of the insertion depth of the skin-attached component) Using the skin-attaching member from Example 6, it was cut to a width of 20 cm and a length of 7 cm. As shown in Figure 4, this skin-attaching member was joined to the support parts at both ends in the width direction of a frame that was 20 cm wide, 7 cm wide, and 5 cm deep. A 1 mm thick silicone rubber sheet A50 (manufactured by Togawa Rubber) was placed as a base material on the opposite side of the skin-attaching surface of the skin-attaching member to create a care device. When the indentation depth of the care device of Example 17 obtained in this way was evaluated in the same manner as in Example 16, the indentation depth was found to be 16.3 mm.

[0188] (Pleasure level rating) When the care device fabricated in Example 17 was evaluated for comfort using the same method as in Example 16, the comfort score was 6.0.

[0189] <Example 18> (Evaluation of the insertion depth of the skin-attached component) Using the skin-attaching member from Example 6, it was cut to a width of 20 cm and a length of 7 cm. As shown in Figure 4, this skin-attaching member was joined to the support parts at both ends in the width direction of a frame that was 20 cm wide, 7 cm wide, and 5 cm deep. A urethane sponge (manufactured by TRUSCO) was placed as a base material on the opposite side of the skin-attaching surface of the skin-attaching member to create a care device. When the indentation depth of the care device of Example 17 obtained in this way was evaluated in the same manner as in Example 16, the indentation depth was found to be 5.0 mm.

[0190] (Pleasure level rating) When the care device fabricated in Example 18 was evaluated for comfort using the same method as in Example 16, the comfort score was 6.3.

[0191] <Example 19> (Evaluation of the insertion depth of the skin-attached component) Using the skin-attaching member from Example 6, it was cut to a width of 20 cm and a length of 7 cm. As shown in Figure 4, this skin-attaching member was joined to the support parts at both ends in the width direction of a frame that was 20 cm wide, 7 cm wide, and 5 cm deep. A 2 mm thick silicone rubber sheet A50 (manufactured by Togawa Rubber) and a 10 mm thick urethane sponge (manufactured by Trusco) were layered and installed as base materials on the opposite side of the skin-attaching surface of the skin-attaching member to create a care device. When the indentation depth of the care device of Example 19 obtained in this way was evaluated in the same manner as in Example 16, the indentation depth was found to be 1.0 mm.

[0192] (Pleasure level rating) When the care device fabricated in Example 19 was evaluated for comfort using the same method as in Example 16, the comfort score was 4.1.

[0193] <Example 20> (Evaluation of the insertion depth of the skin-attached component) Using the skin-attaching member from Example 6, it was cut to a width of 18 cm and a height of 6 cm. This skin-attaching member was attached to an eye care device (Panasonic Eye Care Device) which was used as a frame, with the skin-contacting surface of the eye care device serving as the support part, thereby creating a care device. The care device of Example 20 obtained in this way was evaluated for its indentation depth in the same manner as in Example 16, and the indentation depth was found to be 0.8 mm.

[0194] (Pleasure level rating) When the care device manufactured in Example 20 was evaluated for comfort using the same method as in Example 16, the comfort level was rated at 4.0.

[0195] The results for Examples 16 to 20 are shown in Table 5. In Examples 16 to 19, the comfort score for the feel of the care device around the eyes was higher than 4 points, while in Example 20, the comfort score was 4 points or less. When the skin-contacting member containing elastomer was attached to at least a part of the frame, and a load of 1N was applied perpendicular to the surface of the skin contact surface, the vertical indentation depth was 1 mm or more, resulting in a higher comfort level when wearing the care device.

[0196] [Table 5]

[0197] <Example 21> Using the skin-attaching member from Example 6, it was cut to a width of 20 cm and a length of 7 cm. As shown in Figure 4, this skin-attaching member was joined at the support parts at both ends in the width direction of a frame that was 20 cm wide, 7 cm wide, and 5 cm deep. A 10 mm thick urethane sponge (made by TRUSCO) was placed on top of the skin-attaching surface of the skin-attaching member as a base material to create a care device.

[0198] (Evaluation of compressive stress of substructure members) The 10% compressive stress of the urethane sponge used as the base material in Example 21 was measured to be 0.004 MPa. The 10% compressive stress was determined as follows: Using a force gauge system ZTA-50N, MX2-500N-FA (manufactured by IMADA), a cylindrical probe with a diameter of 40 mm was used to compress the surface of a prismatic sample (in this case, the urethane sponge used as the base material) adjusted to a width of 10 mm, a length of 10 mm, and a thickness of 5 mm at a speed of 10 mm / min. The compressive force when the sample was compressed by 10% from its original thickness was measured. The compressive stress σ was calculated from the measured compressive force F and the area A of the surface to which the load was applied, using the following formula (2).

[0199] σ = F / A (Equation 2)

[0200] (Pleasure level rating) The care device produced in Example 21 was evaluated for the pleasantness of the feel around the eyes when worn around the eyes with the skin contact surface of the skin attachment member in contact with the skin. The test subjects were 5 men and women aged from their 40s to 50s. Scoring was then performed based on the following criteria, and the average value of the scores of the test subjects was calculated.

[0201] Score 7: Extremely pleasant Score 6: Very pleasant Score 5: Somewhat pleasant Score 4: Neither pleasant nor unpleasant Score 3: Somewhat unpleasant Score 2: Very unpleasant Score 1: Extremely unpleasant

[0202] <000091>The pleasantness of the feel around the eyes for the care device of Example 21 was 6.8 points.

[0203] <Example 22> A care device was produced by the same method as in Example 21, except that a 5 mm-thick foamed polyethylene (manufactured by Trusco) was used as the base member. For this care device, the 10% compressive stress of the base member was evaluated by the same method as in Example 21, and the 10% compressive stress was found to be 0.01 MPa. The pleasantness of the feel around the eyes of the care device was evaluated by the same method as in Example 21, and the pleasantness of the feel around the eyes was 5.0 points.

[0204] <Example 23> A care device was produced by the same method as in Example 21, except that a 5 mm-thick silicone rubber A50 (manufactured by Togawa Rubber Co., Ltd.) was used as the base member. For this care device, the 10% compressive stress of the base member was evaluated by the same method as in Example 21, and the 10% compressive stress was found to be 0.14 MPa. The pleasantness of the feel around the eyes of the care device was evaluated by the same method as in Example 21, and the pleasantness of the feel around the eyes was 4.5 points.

[0205] <Example 24> A care device was produced in the same manner as in Example 21, except that a urethane rubber with a thickness of 3 mm and a hardness of 90° (manufactured by Kokugo Co., Ltd.) was used as the base member. For this care device, the 10% compressive stress of the base member was evaluated in the same manner as in Example 21, and the 10% compressive stress was found to be 0.28 MPa. When the comfort of the feel around the eyes of the care device was evaluated in the same manner as in Example 21, the comfort score of the feel around the eyes was 4.0 points.

[0206] The results of Examples 21 to 24 are shown in Table 6. In Examples 21 to 23, the comfort score for the feel around the eyes of the care device was higher than 4 points, and in Example 24, the comfort score was 4 points or lower. When the base member was provided at a position opposite to the skin-facing surface of the skin attachment member, and the 10% compressive stress of the base member was 0.2 MPa or less, the comfort when wearing the care device was high.

[0207] [Table 6]

[0208] <Example 25> Using the skin attachment member used in Example 6, the skin attachment member was cut into a width of 50 mm and a length of 100 mm. A care device was produced in which a frame having a width of 50 mm and a length of 100 mm was provided at a position opposite to the skin-facing surface of the skin attachment member. The area of the skin-facing surface of the skin attachment member of the care device of Example 25 was 50 cm 2 .

[0209] (Comfort Evaluation) Evaluation of the comfort of the feel when the care device produced in Example 25 was worn on the upper arm with the skin-facing surface of the skin attachment member in contact with the skin was performed. The test subjects were 5 men and women aged from 30s to 50s. The subjects gave scores based on the following criteria, and the average score of the test subjects was calculated.

[0210] Score 7: Very comfortable Score 6: Quite comfortable Score 5: Somewhat comfortable Score 4: Neither comfortable nor uncomfortable Score 3: Somewhat uncomfortable Rating 2: Not very pleasant Rating 1: Very unpleasant

[0211] The tactile comfort of the care device in Example 25 was rated 7.0 points.

[0212] <Example 26> A care device was fabricated in the same manner as in Example 25, except that the skin-contacting component was cut to a width of 50 mm and a length of 50 mm, and a frame of 50 mm width and a length of 50 mm was installed on the opposite side of the skin-contacting surface of the component. The pleasantness of the feel when the care device was attached to the upper arm was evaluated. The pleasantness of the feel of the care device in Example 26 was 5.8. The skin contact surface area of ​​the skin-contacting component of the care device in Example 26 was 25 cm². 2 That was the case.

[0213] <Example 27> A care device was fabricated in the same manner as in Example 25, except that the skin-contacting component was cut to a width of 30 mm and a length of 50 mm, and a frame of the same width of 30 mm and a length of 50 mm was installed on the opposite side of the skin-contacting surface of the component. The pleasantness of the feel when the care device was attached to the upper arm was evaluated. The pleasantness of the feel of the care device in Example 27 was 5.3. The skin contact surface area of ​​the skin-contacting component of the care device in Example 27 was 15 cm². 2 That was the case.

[0214] <Example 28> A care device was fabricated in the same manner as in Example 25, except that the skin-contacting member was cut to a width of 30 mm and a length of 30 mm, and a frame of 30 mm width and a length of 30 mm was installed on the opposite side of the skin-contacting surface of the skin-contacting member. The pleasantness of the feel when the care device was attached to the upper arm was evaluated. The pleasantness of the feel of the care device in Example 28 was 4.8. The skin contact surface area of ​​the skin-contacting member of the care device in Example 28 was 9 cm². 2 That was the case.

[0215] <Example 29> A care device was produced in the same manner as in Example 25, except that the skin attachment member was cut into a width of 20 mm and a length of 20 mm, and a frame having a width of 20 mm and a length of 20 mm was disposed at a position opposite to the skin attachment surface of the skin attachment member, and the pleasantness of the feel when the care device was attached to the upper arm was evaluated. The pleasantness of the feel of the care device of Example 29 was 4.0. The area of the skin contact surface of the skin attachment member of the care device of Example 29 was 4 cm 2 .

[0216] The results of Examples 25 to 29 are shown in Table 7. In Examples 25 to 28, the score for pleasantness of feel when wearing the care device was higher than 4 points, and in Example 24, the pleasantness was 4 points or lower. When the area of the skin attachment surface of the skin attachment member was larger than 4 cm 2 , the result showed that the pleasantness when wearing the care device was higher.

[0217]

Table 7

[0218] <Example 30> As shown in Fig. 7, a care device including a skin attachment member, a frame, a heating element, and a vibrator was produced. The skin attachment member used in Example 3 was used as the skin attachment member, and the skin attachment member was bonded to the frame via a support portion to produce the care device. This care device was attached to the area around the eyes, the skin attachment member was warmed by the heating element, and care was performed by vibrating the skin attachment member with the vibrator. The pleasantness when the care device was attached, the pleasantness during care, the relaxing feeling, and the healing and therapeutic feeling were evaluated. The subjects were 11 men and women aged 20s to 50s. The subjects sat on a reclining seat, attached the care device by fixing a rubber band connected to the frame to the head, performed care for 3 minutes, then scored based on the following criteria, and the average score of the subjects was calculated.

[0219] <Pleasantness when attached> Score 7: Very pleasant Score 6: Fairly pleasant Score 5: Slightly pleasant Score 4: Neither pleasant nor unpleasant Rating 3: Somewhat unpleasant Rating 2: Not very pleasant Rating 1: Very unpleasant

[0220] <The pleasant feeling during care> Rating 7: Very pleasant Rating 6: Very pleasant Rating 5: Somewhat pleasant Rating 4: Neither agree nor disagree Rating 3: Somewhat unpleasant Rating 2: Not very pleasant Rating 1: Very unpleasant

[0221] <Relaxation> Rating 7: Very relaxing Rating 6: Very luxurious Rating 5: Slightly luxurious feel Rating 4: Neither agree nor disagree Rating 3: Somewhat lacking in relaxation Rating 2: Not very relaxing Rating 1: Not very relaxing

[0222] <Healing and Remedies> Rating 7: Very soothing, very healing. Rating 6: Very soothing, very healing. Rating 5: Somewhat soothing, has a healing feel. Rating 4: Neither agree nor disagree Rating 3: Somewhat soothing, but lacks a healing effect. Rating 2: Not very relaxing, not very healing. Rating 1: Not very soothing or healing.

[0223] <Example 31> A care device was fabricated, comprising a skin-contacting member, a frame, and a heating element, as shown in Figure 5. The skin-contacting member used in Example 6 was used as the skin-contacting member, and this was connected to the frame and support to create the care device. This care device was attached to the eye area, the skin-contacting member was warmed by the heating element, and the comfort level when the care device was attached, the comfort level during care, the feeling of relaxation, and the feeling of healing and relaxation were evaluated in the same manner as in Example 30.

[0224] <Comparative Example 4> An eye care device (manufactured by Panasonic) was used, which featured silicone rubber with an Asker C hardness of 70 (C70) and a static friction coefficient of 1.4 against artificial skin as the skin-contacting component. The device was heated by a heating element and vibrated by a vibrator, and the same method as in Example 30 was used to evaluate the comfort of wearing the device, the comfort during the treatment, the feeling of relaxation, and the feeling of healing and relaxation. The device was set to high temperature and quick mode.

[0225] The results for Examples 30, 31, and Comparative Example 4 are shown in Table 8. Compared to Comparative Example 4, Examples 30 and 31 resulted in higher levels of comfort during wear, comfort during care, relaxation, and a sense of healing and relaxation.

[0226] [Table 8]

[0227] <Example 32> (Vibration sensation evaluation) A care device was fabricated, comprising a skin-mounted member, a frame, a heating element, and a vibrator, as shown in Figure 7. The skin-mounted member used in Example 6 was used as the skin-mounted member, and this was connected to the frame and support to create the care device. As shown in Figure 8, a 2mm thick, 10mm x 80mm silicone rubber A50 (manufactured by Togawa Rubber Co., Ltd.) was used as a vibration assist jig on the side of the skin-mounted member opposite the skin-contacting surface, positioned below the eye. The vibrator was positioned outside the eye. The mass per unit area of ​​the installed vibration assist jig was evaluated and found to be 0.27 g / cm³. 2 The care device was attached to the eye area, and the skin-attached component was vibrated by the vibrator. The sensation of vibration felt by the skin was evaluated, specifically the vibration felt under the eye where the jig was attached. The care device was attached by securing a rubber band connected to the frame to the head, and the care was performed for 3 minutes. After that, it was evaluated based on the following criteria.

[0228] (Vibration sensation) A: The vibration sensation under the eyes is stronger compared to other parts of the skin-attached material. B: The vibration sensation under the eyes is comparable to other parts of the skin-attached material. C: The vibration sensation under the eyes is lower compared to other parts of the skin-attached material.

[0229] <Example 33> The care device was fabricated in the same manner as in Example 32, except that a Φ10mm stainless steel ball was used as a vibration assist jig instead of a 2mm thick, 10mm x 80mm silicone rubber A50. The mass per unit area of ​​the installed jig was evaluated to be 4.2 g / cm³. 2 This care device was attached to the eye area, and the sensation of vibration was evaluated in the same manner as in Example 32.

[0230] <Example 34> The care device was fabricated in the same manner as in Example 32, except that a 10mm thick, 10mm x 80mm silicone gel (manufactured by Tanac) was used as a vibration assist jig instead of a 2mm thick, 10mm x 80mm silicone rubber A50. The mass per unit area of ​​the installed jig was evaluated to be 1.4 g / cm³.2 This care device was attached to the eye area, and the sensation of vibration was evaluated in the same manner as in Example 32.

[0231] <Example 35> The care device was fabricated in the same manner as in Example 32, except that a PET film (manufactured by Toray Industries, Inc.) with a thickness of 200 μm and a size of 10 mm x 80 mm was used as a vibration assist jig instead of a silicone rubber A50 with a thickness of 2 mm and a size of 10 mm x 80 mm. The mass per unit area of ​​the installed jig was evaluated to be 0.03 g / cm³. 2 This care device was attached to the eye area, and the sensation of vibration was evaluated in the same manner as in Example 32.

[0232] <Example 36> The care device was fabricated in the same manner as in Example 32, except that a 5mm thick, 10mm x 80mm foamed polyethylene (manufactured by TRUSCO) was used as a vibration assist jig instead of a 2mm thick, 10mm x 80mm silicone rubber A50. The mass per unit area of ​​the installed jig was evaluated and found to be 0.015 g / cm³. 2 This care device was attached to the eye area, and the sensation of vibration was evaluated in the same manner as in Example 23.

[0233] <Example 37> The care device was fabricated in the same manner as in Example 32, except that a polymid tape measuring 100 μm thick and 10 mm x 80 mm was used as a vibration assist jig instead of a silicone rubber A50 measuring 2 mm thick and 10 mm x 80 mm. The mass per unit area of ​​the installed jig was evaluated to be 0.015 g / cm³. 2 This care device was attached to the eye area, and the sensation of vibration was evaluated in the same manner as in Example 32.

[0234] The results for Examples 32 to 37 are shown in Table 9. The mass per unit area of ​​the vibration assist jig was 0.02 g / cm². 2In Examples 32 to 35 described above, the vibration sensation below the eyes, where the vibration assist jig was installed, was equal to or better than the vibration sensation in other areas where the jig was not installed. The mass per unit area of ​​the vibration assist jig was 0.02 g / cm². 2 In the smaller Examples 36 and 37, the vibration sensation under the eyes, where the vibration assist jig is installed, was lower compared to other parts of the skin-mounted member where the vibration assist jig is not installed. Therefore, the mass per unit area on the surface of the skin-mounted member opposite the skin-contact surface was 0.02 g / cm². 2 The installation of the vibration assist jig, which is made of the solid material described above, resulted in an improvement in the vibration sensation at the point where the vibration assist jig was installed on the skin-mounted component.

[0235] [Table 9] [Industrial applicability]

[0236] The skin care devices described herein, which come into contact with or are worn on the skin, can be used for purposes such as massaging the eyes, face, neck, hands, and feet, obtaining beauty effects similar to those of a spa, or providing effects such as relaxation, healing, or sleep induction. [Explanation of Symbols]

[0237] 1. Skin-attached member 2 Skin contact surface 3 frames 4 Support part 5. Substrate materials 6. Heating element 7. Oscillator 8. Vibration-assisted jig 11 Base material 12,13 film 14 Adhesive layer 100, 200, 300, 400, 500 Care equipment

Claims

1. Equipped with a skin-contacting member containing elastomer, The skin-attached member has a hardness of Asker C 30 degrees or less and a static friction coefficient of 3 or less. A care device that comes into contact with or is worn on the skin. Here, the static friction coefficient is the static friction coefficient for an artificial skin sheet that satisfies the following characteristics (A) and (B). (A) The compressive stress when the artificial skin sheet is pressed to a depth of 2 mm in the thickness direction is 0.01 MPa or more and 0.05 MPa or less. (B) The arithmetic mean roughness Ra of the surface of the artificial skin sheet is between 5 μm and 10 μm.

2. The tensile strength of the skin-attached member is 1 N / mm². 2 Larger, The care device according to claim 1.

3. The aforementioned skin-attaching member, A substrate containing the elastomer, A film having a thickness of 100 μm or less is disposed on the surface of the substrate in an area that is in contact with the skin, A care device according to claim 1, including the following:

4. The adhesion force between the substrate and the film is 0.3 N or more in a peel test with a width of 15 mm. The care device according to claim 3.

5. The film covers the entire surface of the substrate. The care device according to claim 3.

6. The aforementioned skin-attaching member, A substrate containing the elastomer, A coating containing powder is disposed on the surface of the substrate in at least the area facing the skin, A care device according to claim 1, including the following:

7. When a load of 1 N is applied perpendicular to the surface of the part of the skin-attaching member that comes into contact with the skin using a cylindrical pressing jig with a diameter of 5 mm, the vertical pressing depth is 1 mm or more. The care device according to claim 1.

8. Further equipped with base materials, The base member is provided at a position opposite to the skin relative to the skin-attaching member when the skin-attaching member is attached to the skin, and is in contact with at least a portion of the part of the skin-attaching member that does not come into contact with the skin. The 10% compressive stress of the aforementioned base material is 0.2 MPa or less. The care device according to claim 1.

9. The area of ​​the skin-contacting surface of the aforementioned skin-contacting member is 4 cm² 2 Larger, The care device according to claim 1.

10. The elastomer is a gel mainly composed of polystyrene, a gel mainly composed of silicone, or silicone rubber. The care device according to claim 1.

11. The skin-attached member is formed from a polymer material including the elastomer. The care device according to claim 1.

12. It further includes a heating element that allows for continuous temperature control. The care device according to claim 1.

13. The cooling control unit further comprises the following: The care device according to claim 1.

14. The aforementioned skin-attached member further comprises a vibrator for vibrating the skin-attached member. The care device according to claim 1.

15. Equipped with a vibration assist jig, The vibration assist jig is provided on a portion of the skin-attaching member that does not come into contact with the skin when the skin-attaching member is attached to the skin. The vibration assist jig has a mass of 0.02 g / cm² per unit area. 2 It consists of the above solid materials and has a mass of 500g or less. The care device according to claim 1.

16. The system further includes a pressure changing unit that changes the pressure applied to the skin-attached member. The care device according to claim 1.

17. The system further includes a tensile force changing unit that changes the tensile force applied to the skin-attached member. The care device according to claim 1.

18. A skin area detection unit that detects the area of ​​skin to which the care device is in contact or attached, A temperature control unit controls the temperature of the skin-attached member by heating or cooling it according to the results detected by the skin area detection unit, The care device according to claim 1, further comprising:

19. A skin area detection unit that detects the area of ​​skin to which the care device is in contact or attached, A system that changes the vibration amount of the vibrator according to the results detected by the skin area detection unit, The care device according to claim 14, further comprising:

20. The care device further comprises a skin area detection unit that detects the area of ​​skin to which the device is in contact or attached. The pressure change unit changes the pressure applied to the skin-attached member according to the result detected by the skin area detection unit. The care device according to claim 16.

21. The care device further comprises a skin area detection unit that detects the area of ​​skin to which the device is in contact or attached. The tensile force changing unit changes the tensile force applied to the skin-attached member according to the result detected by the skin area detection unit. The care device according to claim 17.

22. It is applied to or attached to the skin around the face or neck. The care device according to claim 1.

23. It is applied to or attached to the skin around the eyes. The care device according to claim 1.

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