Eye mask

Abstract

This eye mask is provided with: a body that covers the eyes and / or the periphery of the eyes and the temples of a wearer when being worn; a pair of ear fitting parts that can be fitted to the ears of the wearer; and a heat-generating element provided to the body. The heat-generating element is disposed in the body so as to directly or indirectly face the eyes and / or the periphery of the eyes of the wearer when being worn. The body is configured to be capable of conducting the heat of the heat-generating element to the temples of the wearer.

Description

eye mask

[0001] The present invention relates to an eye mask.

[0002] Conventionally, eye masks have been known that include a main body that covers the wearer's eyes and the area around the eyes when worn, ear loops attached to both widthwise ends of the main body, and a heating element provided in the main body (see, for example, Patent Document 1). Conventional eye masks, including the eye mask described in Patent Document 1, transmit heat generated from the heating element to the wearer's eyes and the area around the eyes, making the wearer feel comfortable.

[0003] Japanese Patent Application Laid-Open No. 2015-123336

[0004] Incidentally, conventional eye masks do not take into consideration that the main body covers the wearer's temples when worn. However, the inventors have discovered that by having the main body cover the wearer's temples when the eye mask is worn, the heat generated from the heating element 20 can also be conducted to the wearer's temples, providing even greater comfort to the wearer.

[0005] The present invention relates to an eye mask that can improve comfort for the wearer.

[0006] The eye mask of the present invention comprises a main body portion that covers the wearer's eyes and / or the area around the eyes and temples when worn, a pair of ear attachment portions that can be attached to the wearer's ears, and a heating element provided in the main body portion, wherein the heating element is positioned in the main body portion so as to directly or indirectly face the wearer's eyes and / or the area around the eyes when worn, and the main body portion is configured to be able to conduct heat from the heating element to the wearer's temples as well.

[0007] The eye mask of the present invention can improve comfort for the wearer.

[0008] 8(a) is a plan view of an eye mask according to the present embodiment; FIG. 8(b) is an exploded perspective view of an eye mask according to the present embodiment; FIG. 8(b) is a schematic cross-sectional view of an eye mask according to the present embodiment; FIG. 8(c) is a perspective view of a human head model; FIG. 8(d) is a plan view of a heating element according to the present embodiment; FIG. 8(e) is a schematic cross-sectional view taken along line AA' in FIG. 5; FIG. 8(f) is a schematic view of a measuring device for measuring the amount of water vapor generated; FIG. 8(a) is a diagram showing the process of putting on an eye mask according to the present embodiment, and FIG. 8(b) is a diagram showing the state in which the eye mask according to the present embodiment is put on; FIG. 9(a) is a thermographic image of a state in which the eye mask according to Example 1 is put on, and FIG. 9(b) is a thermographic image of a state in which the eye mask according to the comparative example is put on.

[0009] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention. Furthermore, in the present embodiments, the scale and dimensions of each component may be exaggerated, and some components may be omitted.

[0010] 1 to 3, the eye mask 1 according to this embodiment includes a main body 10 that covers the wearer's eyes and / or the areas around the eyes and temples when worn, a pair of ear attachment parts that can be attached to the wearer's ears, and a heating element 20 provided on the main body 10. In this embodiment, the ear attachment parts are ear insertion parts 16, which will be described later, and are provided on the main body 10.

[0011] In this specification, the direction in which an upper edge 11 (described later) is located is defined as "upper" in a plan view of the eye mask 1 (see FIG. 1), and the direction in which a lower edge 12 (described later) is located is defined as "lower." In addition, in this specification, the direction perpendicular to the up-down direction in a plan view of the eye mask 1, i.e., the direction coinciding with the arrangement direction of a first panel portion 10A and a second panel portion 10B (described later), is defined as the "width direction."

[0012] In this specification, the "eye" is collectively defined as the area inside the eye socket, such as the eyeball, eyelid, and eyelashes. Also, in this specification, the eyebrows, the space between the eyebrows, and the upper ends of the cheeks are collectively defined as the "surroundings of the eyes." Furthermore, in this specification, the "temple" is defined as the area corresponding to either (1) or (2) below. (1) The area where the skull is recessed, located between the end of the eyebrow and the upper end of the base of the ear. (2) As shown in FIG. 4 , within a circular area with a radius of 10 mm, the center O of which is 15 mm toward the head from the intersection P of an imaginary line VL1 connecting the outer corner of the eye of the human head model HM to the upper end of the base of the ear, and an imaginary line VL2 extending vertically through a point 30 mm from the end of the imaginary line VL1 on the outer corner side of the eye. The imaginary lines VL1 and VL2 are imaginary lines extending along the surface of the human head model HM. Furthermore, as the "human head model HM," a female human head model (width 151.24 mm, depth 206.82 mm, height 233.01 mm) created based on the average female head data (2014 edition) manufactured by Digital Human Technology Co., Ltd. can be used.

[0013] [Configuration of main body] As shown in Figures 1 to 3, the main body 10 has a long upper edge 11 that is located on the forehead side of the wearer when the eye mask 1 is worn, a long lower edge 12 that is located on the cheek side of the wearer when the eye mask 1 is worn, and a pair of side edge portions 13 that extend from both ends of the upper edge 11 to both ends of the lower edge 12, and is formed as a rectangle that is long in the width direction overall.

[0014] The upper edge 11 and the lower edge 12 are formed in an arc shape that curves slightly upward toward the center of the main body 10. The side edge 13 is formed in an arc shape that curves outward in the width direction of the main body 10. Furthermore, the connection portion between the upper edge 11 and the side edge 13 and the connection portion between the lower edge 12 and the side edge 13 are each formed in an arc shape that curves outward from the main body 10. This configuration has the advantage of improving the design of the eye mask 1.

[0015] The shape of the main body 10 is not limited to this, and for example, at least one of the upper edge 11 and the lower edge 12 may be formed in a straight line extending along the width direction, at least one of the upper edge 11 and the lower edge 12 may be formed in an arc shape curving downward toward the center of the main body 10, at least one of the upper edge 11 and the lower edge 12 may protrude or curve locally, the side edge 13 may be formed in a straight line extending along the vertical direction, the side edge 13 may protrude or curve locally, at least one of the upper edge 11 and the side edge 13 and the lower edge 12 and the side edge 13 may be perpendicular to each other, or the main body 10 may have various other known shapes.

[0016] The main body portion 10 also has a vertical center line 14 that divides the main body portion 10 in half in the width direction, a first panel portion 10A that forms one side in the width direction with the vertical center line 14 as the boundary, and a second panel portion 10B that forms the other side in the width direction with the vertical center line 14 as the boundary.

[0017] The vertical center line 14 is an imaginary line that passes through the center of the width of the main body 10 and extends in the up-down direction. The first panel 10A and the second panel 10B are formed to have the same shape and size and are arranged to be symmetrical with respect to the vertical center line 14. In this embodiment, the first panel 10A and the second panel 10B are formed as an integral unit. However, the first panel 10A and the second panel 10B may be formed as separate members and integrated into one unit.

[0018] The main body 10 also has a nose insertion portion 15 through which the wearer's nose can be inserted, and a pair of ear insertion portions 16 through which the wearer's ears can be inserted.

[0019] The nose insertion portion 15 is a generally triangular notch tapered from the lower edge 12 to the upper edge 11. The nose insertion portion 15 is formed on the vertical centerline 14. Specifically, the nose insertion portion 15 is formed so that the center of the width of the nose insertion portion 15 is located on the vertical centerline 14. By including the nose insertion portion 15 in the main body 10, the main body 10 is not positioned on the bridge of the wearer's nose, improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes. This facilitates transfer of heat generated by the heating element 20 to the wearer's eyes and / or the area around the eyes, enhancing the thermal effect on the wearer's eyes and / or the area around the eyes. Furthermore, the improved fit of the main body 10 to the wearer's eyes and / or the area around the eyes improves the sense of immersion provided to the wearer. The nose insertion portion 15 may also be a slit formed from the lower edge 12 to the upper edge 11.

[0020] An ear insertion section 16 is provided at each widthwise end of the main body section 10. Specifically, an ear insertion section 16 is provided on each of the first panel section 10A and the second panel section 10B. In this embodiment, the ear insertion section 16 is an opening having a shape and size that allows the wearer's ear to be inserted therethrough.

[0021] In this way, by providing the ear insertion portions 16 on the main body portion 10, the fit of the main body portion 10 to the wearer's temples can be improved. Therefore, heat generated by the heating element 20 is more easily transferred to the wearer's temples, enhancing the thermal effect on the wearer's temples. Furthermore, the improved fit of the main body portion 10 to the wearer's temples can enhance the sense of immersion provided to the wearer. That is, in this embodiment, the main body portion 10 is not provided with a separate member such as an ear hook, and the ear insertion portions 16 are formed directly on the main body portion 10. Specifically, the ear insertion portions 16 are not provided with a separate member such as an ear hook, but are provided at both widthwise ends of the main body portion 10. With this configuration, the ear insertion portions 16 are not provided with a separate member such as an ear hook attached to both widthwise ends of the main body portion 10, but are formed directly on the main body portion 10. Therefore, no gaps are formed between the wearer's temples and the main body portion 10, improving the fit of the main body portion 10 to the wearer's temples.

[0022] In addition, in this embodiment, the main body 10 is formed in a rectangular shape that is elongated in the width direction, and the ear insertion portion 16 is provided on the main body 10, so the area that the main body 10 covers with respect to the wearer's temple is large. This has the advantage of enhancing the thermal effect on the wearer's temple and improving the sense of immersion given to the wearer. That is, in this embodiment, the main body 10 is not provided with a separate component such as an ear hook, and the ear insertion portion 16 is formed directly on the main body 10, and the main body 10 is formed in a rectangular shape that is elongated in the width direction. With this configuration, the ear insertion portion 16 is not provided on a separate member such as an ear hook attached to both widthwise ends of the main body portion 10, but is formed directly on the main body portion 10. Therefore, only the main body portion 10 is formed between the end of the heating element 20 on the ear insertion portion 16 side and the end of the ear insertion portion 16 on the heating element 20 side. Furthermore, because the main body portion 10 is formed in a rectangular shape that is long in the widthwise direction, no recesses are formed in the upper edge portion 11 and lower edge portion 12 between the end of the heating element 20 on the ear insertion portion 16 side and the end of the ear insertion portion 16 on the heating element 20 side, as is the case when a separate member such as an ear hook is provided on the main body portion 10, and the covering area of ​​the main body portion 10 relative to the wearer's temples is increased.

[0023] In this specification, the term "rectangular" refers to a quadrilateral shape having a pair of long sides and a pair of short sides, and specifically refers to a shape that corresponds to either (1) or (2) below: (1) A shape in which the upper edge 11 and the side edge 13 are perpendicular to the lower edge 12 and the side edge 13, and the main body 10 is a complete rectangle as a whole; (2) A shape in which the main body 10 is substantially rectangular as a whole, for example, when at least one of the upper edge 11, the lower edge 12, and the side edge 13 is formed in an arc shape, or when at least one of the connection portion of the upper edge 11 and the side edge 13 and the connection portion of the lower edge 12 and the side edge 13 is formed in an arc shape.

[0024] In the present embodiment, the ear insertion portion 16 is described as being provided on the main body 10, but is not limited to this and may be provided on a separate member such as an ear hook attached to both widthwise ends of the main body 10. For example, if the separate member such as the ear hook is a flat ear hook, an opening or slit formed in the ear hook functions as the ear insertion portion 16. On the other hand, if the separate member such as the ear hook is a string-like ear hook, the area defined by the ear hook and the main body 10 functions as the ear insertion portion 16. Furthermore, in the present embodiment, the ear insertion portion 16 is described as being an opening, but is not limited to this and may be a slit through which the wearer's ear can be inserted.

[0025] 1 , the distance D1 between the end of one ear insertion portion 16 facing the heating element 20 and the end of the other ear insertion portion 16 facing the heating element 20 is preferably 150 mm or more, more preferably 185 mm or more, and even more preferably 200 mm or more, from the viewpoint of ensuring that the main body portion 10 covers the wearer's temples when the eyemask 1 is worn. Furthermore, the distance D1 between the end of one ear insertion portion 16 facing the heating element 20 and the end of the other ear insertion portion 16 facing the heating element 20 is preferably 300 mm or less, more preferably 280 mm or less, and even more preferably 255 mm or less, from the viewpoint of preventing slack in the main body portion 10 when the eyemask 1 is worn and improving the fit of the main body portion 10 around the wearer's eyes and / or the areas around the eyes and temples. That is, the distance D1 between the end of one ear insertion portion 16 on the heating element 20 side and the end of the other ear insertion portion 16 on the heating element 20 side is preferably 150 mm or more and 300 mm or less, more preferably 185 mm or more and 280 mm or less, and even more preferably 200 mm or more and 255 mm or less.

[0026] In this specification, the "distance between the end of one ear insertion portion on the heating element side and the end of the other ear insertion portion on the heating element side" refers to the linear distance along the width direction from the end of one ear insertion portion 16 on the heating element 20 side to the end of the other ear insertion portion 16 on the heating element 20 side, as shown in Figure 1.

[0027] 1 , the distance D2 between the vertical center line 14 and the end of the ear insertion portion 16 on the heating element 20 side is preferably 75 mm or more, more preferably 92.5 mm or more, and even more preferably 100 mm or more, from the viewpoint of ensuring that the main body portion 10 covers the wearer's temples when the eye mask 1 is worn. Furthermore, the distance D2 between the vertical center line 14 and the end of the ear insertion portion 16 on the heating element 20 side is preferably 150 mm or less, more preferably 140 mm or less, and even more preferably 127 mm or less, from the viewpoint of preventing slack in the main body portion 10 when the eye mask 1 is worn and improving the fit of the main body portion 10 around the wearer's eyes and / or the areas around the eyes and temples. That is, the distance D2 between the vertical center line 14 and the end of the ear insertion portion 16 on the heating element 20 side is preferably 75 mm or more and 150 mm or less, more preferably 92.5 mm or more and 140 mm or less, and even more preferably 100 mm or more and 127 mm or less.

[0028] In this specification, the "distance between the vertical center line and the end of the ear insertion portion on the heating element side" refers to the linear distance along the width direction from the vertical center line 14 to the end of the ear insertion portion 16 on the heating element 20 side, as shown in Figure 1.

[0029] 1 , the widthwise length L1 of the main body 10 is preferably 220 mm or more, more preferably 240 mm or more, and even more preferably 260 mm or more, from the viewpoint of ensuring that the main body 10 covers the wearer's temples when the eye mask 1 is worn. Furthermore, the widthwise length L1 of the main body 10 is preferably 360 mm or less, more preferably 340 mm or less, and even more preferably 320 mm or less, from the viewpoint of preventing slack in the main body 10 when the eye mask 1 is worn and improving the fit of the main body 10 around the wearer's eyes and / or the areas around the eyes and temples. That is, the widthwise length L1 of the main body 10 is preferably 220 mm or more and 360 mm or less, more preferably 240 mm or more and 340 mm or less, and even more preferably 260 mm or more and 320 mm or less.

[0030] In this specification, the "widthwise length of the main body" refers to any one of the lengths (1) to (3) below. (1) As shown in FIG. 1, when the side edge 13 is not formed in a straight line extending in the vertical direction, such as when the side edge 13 is formed in an arc, the linear length along the widthwise direction from a tangent line along the vertical direction of one side edge 13 to a tangent line along the vertical direction of the other side edge 13. (2) When the side edge 13 is formed in a straight line extending in the vertical direction, the linear length along the widthwise direction from one side edge 13 to the other side edge 13. (3) When separate members such as ear hooks are attached to both ends of the main body 10 in the widthwise direction, the linear length along the widthwise direction from the end of one separate member such as an ear hook on the heating element 20 side to the end of the other separate member such as an ear hook on the heating element 20 side when the separate member such as an ear hook is unfolded.

[0031] 1 , the vertical length L2 of the main body 10 is preferably 80 mm or more, more preferably 85 mm or more, and even more preferably 90 mm or more, from the viewpoint of increasing the coverage area of ​​the main body 10 relative to the wearer's face and providing a sense of immersion to the wearer. Furthermore, the vertical length L2 of the main body 10 is preferably 130 mm or less, more preferably 110 mm or less, and even more preferably 105 mm or less, from the viewpoint of reducing the coverage area of ​​the main body 10 relative to the wearer's forehead and preventing discomfort to the wearer. That is, the vertical length L2 of the main body 10 is preferably 80 mm or more and 130 mm or less, more preferably 85 mm or more and 110 mm or less, and even more preferably 90 mm or more and 105 mm or less.

[0032] In this specification, the "vertical length of the main body" refers to any one of the lengths (1) to (3) below. (1) As shown in Figure 1, when the upper edge 11 and the lower edge 12 are not formed in a straight line extending in the width direction, such as when the upper edge 11 and the lower edge 12 are formed in an arc shape, the vertical linear length from a tangent line along the width direction of the upper edge 11 to a tangent line along the width direction of the lower edge 12. (2) When the upper edge 11 and the lower edge 12 are formed in a straight line extending in the width direction, the vertical linear length from the upper edge 11 to the lower edge 12. (3) When either the upper edge 11 or the lower edge 12 is formed in a straight line extending along the width direction, and the other of the upper edge 11 or the lower edge 12 is not formed in a straight line extending along the width direction, the straight line length along the vertical direction from either the upper edge 11 or the lower edge 12 to a tangent along the width direction of either the other of the upper edge 11 or the lower edge 12.

[0033] 1 , the widthwise length L3 of the first panel portion 10A is preferably 110 mm or more, more preferably 120 mm or more, and even more preferably 130 mm or more, from the viewpoint of ensuring that the main body portion 10 covers the wearer's temples when the eye mask 1 is worn. Furthermore, the widthwise length L3 of the first panel portion 10A is preferably 160 mm or less, more preferably 155 mm or less, and even more preferably 150 mm or less, from the viewpoint of preventing slack in the main body portion 10 when the eye mask 1 is worn and improving the fit of the main body portion 10 around the wearer's eyes and / or the areas around the eyes and temples. That is, the widthwise length L3 of the first panel portion 10A is preferably 110 mm or more and 160 mm or less, more preferably 120 mm or more and 155 mm or less, and even more preferably 130 mm or more and 150 mm or less.

[0034] In this specification, the "widthwise length of the first panel portion" refers to any one of the lengths (1) to (3) below. (1) As shown in FIG. 1, when the side edge portion 13 is not formed in a straight line extending in the vertical direction, such as when the side edge portion 13 is formed in an arc shape, the linear length along the widthwise direction from the vertical center line 14 to a tangent line along the vertical direction of the side edge portion 13. (2) When the side edge portion 13 is formed in a straight line extending in the vertical direction, the linear length along the widthwise direction from the vertical center line 14 to the side edge portion 13. (3) When separate members such as ear hooks are attached to both ends of the main body portion 10 in the widthwise direction, the linear length along the widthwise direction from the vertical center line 14 to the end of the separate member such as the ear hook on the heating element 20 side when the separate member such as the ear hook is unfolded.

[0035] The widthwise length of the second panel portion 10B is defined by the same values ​​as those of the first panel portion 10A, and therefore will not be described here.

[0036] In order to increase the coverage area of ​​the main body 10 relative to the wearer's face and give the wearer a sense of immersion, the area of ​​the main body 10 is preferably 5% to 50% of the total area of ​​the heating element 20, more preferably 8% to 30%, and even more preferably 10% to 25%.

[0037] In this specification, the "area of ​​the main body" refers to the area of ​​the main body 10 in a plan view (see FIG. 1). In addition, in this specification, the "total area of ​​the heating element" refers to the total area of ​​the heating element 20 in a plan view excluding the first sheet 21 and second sheet 22 (i.e., the base material layer 23, the water retention layer 24, and the heating layer 25) (see FIGS. 1 and 5).

[0038] Specifically, the area of ​​the main body 10 is set to 10,000 mm from the viewpoint of increasing the coverage area of ​​the main body 10 relative to the wearer's face and giving the wearer a sense of immersion. ２ More than 50,000 mm ２ It is preferable that the length is 15,000 mm or less. ２ More than 40,000 mm ２ More preferably, it is 20,000 mm or less. ２ More than 35000mm ２It is more preferable that:

[0039] In order to increase the coverage area of ​​the main body 10 relative to the wearer's face and give the wearer a sense of immersion, the area of ​​the first panel portion 10A is preferably 5% to 50% of the area of ​​the heating element 20A provided in the first panel portion 10A described below, more preferably 8% to 30%, and even more preferably 10% to 25%.

[0040] In this specification, the "area of ​​the first panel portion" refers to the area of ​​the first panel portion 10A in a plan view (see FIG. 1). Also, the "area of ​​the heating element provided in the first panel portion" refers to the area of ​​the heating element 20A provided in the first panel portion 10A in a plan view, excluding the first sheet 21 and second sheet 22 (described later) (i.e., the base layer 23, the water-retaining layer 24, or the heating layer 25) (see FIGS. 1 and 5).

[0041] Specifically, the area of ​​the first panel portion 10A is set to 1500 mm from the viewpoint of increasing the area covered by the main body portion 10 relative to the wearer's face and giving the wearer a sense of immersion. ２ Over 4000mm ２ It is preferable that the length is 1750 mm or less. ２ More than 3000mm ２ More preferably, it is 2000 mm or less. ２ 2750mm or more ２ It is more preferable that:

[0042] The area of ​​the second panel portion 10B is defined by the same values ​​and definitions as those of the area of ​​the first panel portion 10A, and therefore will not be described here.

[0043] The main body 10 having the above configuration is configured to cover the wearer's eyes and / or the areas surrounding the eyes and temples when wearing the eye mask 1. In this embodiment, the main body 10 is configured to cover the wearer's eyes, the areas surrounding the eyes, and the temples when wearing the eye mask 1. Specifically, as shown in Fig. 8 , the first panel 10A of the main body 10 is configured to cover one of the wearer's eyes (e.g., the right eye), the area surrounding the eye, and the temple on that side, and the second panel 10B of the main body 10 is configured to cover the wearer's other eye (e.g., the left eye), the area surrounding the other eye, and the temple on that side.

[0044] The main body 10 may be configured to cover only the eyes and temples of the wearer when wearing the eye mask 1. Alternatively, the main body 10 may be configured to have an opening in the area facing the wearer's eyes when wearing the eye mask 1, and to cover only the area around the eyes and temples when wearing the eye mask 1.

[0045] 1 to 3, the main body 10 according to this embodiment has an inner sheet 30 that is positioned on the skin side of the wearer when the eye mask 1 is worn, and an outer sheet 40 that is positioned on the non-skin side of the wearer when the eye mask 1 is worn. In other words, the main body 10 is formed in a sheet shape as a whole.

[0046] The inner sheet 30 and the outer sheet 40 are joined to each other with the heating element 20 disposed between the inner sheet 30 and the outer sheet 40. The heating element 20 may be adhered to the outer sheet 40 via an adhesive, to the inner sheet 30 via an adhesive, to both the outer sheet 40 and the inner sheet 30 via an adhesive, or may be disposed in a bag-like space formed by joining the outer sheet 40 and the inner sheet 30 without using an adhesive. A hot-melt adhesive is preferably used as the adhesive, but this is not limited thereto, and various known fastening means can be used. For example, adhesives other than hot-melt adhesives, sewing, heat fusion, embossing, etc. are possible, but are not limited thereto as long as they can be fastened.

[0047] Alternatively, the inner sheet 30 and the outer sheet 40 may be locally non-adhered to form an opening and storage space between the inner sheet 30 and the outer sheet 40 through which the heating element 20 can be inserted and removed.

[0048] The width direction of the inner sheet 30 is shorter than the width direction of the outer sheet 40. Therefore, in this embodiment, the peripheral edge of the inner sheet 30 constitutes only a part of the upper edge 11 and a part of the lower edge 12 of the main body 10, and does not constitute the remaining parts of the upper edge 11, the remaining parts of the lower edge 12, or the side edge 13 of the main body 10. On the other hand, the peripheral edge of the outer sheet 40 constitutes the entire upper edge 11, the lower edge 12, and the side edge 13. Furthermore, in this embodiment, the nose insertion portions 15 of the main body 10 are provided on both the inner sheet 30 and the outer sheet 40, but the ear insertion portions 16 of the main body 10 are provided only on the outer sheet 40.

[0049] The widthwise length of the inner sheet 30 is preferably 160 mm or more, more preferably 170 mm or more, and even more preferably 180 mm or more, from the viewpoint of preventing a reduction in the thermal effect on the temples due to the widthwise length of the inner sheet 30 being too short, i.e., from the viewpoint of having the inner sheet 30 cover the wearer's temples when wearing the eye mask 1.

[0050] In this specification, the "widthwise length of the inner sheet" refers to a length that corresponds to either (1) or (2) below. (1) When both widthwise edges of the inner sheet 30 are arc-shaped, for example, and the both widthwise edges of the inner sheet 30 are not formed in straight lines extending in the vertical direction, the linear length along the widthwise direction from a vertical tangent to one widthwise edge of the inner sheet 30 to a vertical tangent to the other widthwise edge of the inner sheet 30. (2) When both widthwise edges of the inner sheet 30 are formed in straight lines extending in the vertical direction, the linear length along the widthwise direction from one widthwise edge of the inner sheet 30 to the other widthwise edge of the inner sheet 30.

[0051] In this embodiment, the width direction length of the inner sheet 30 is described as being shorter than the width direction length of the outer sheet 40, but this is not limited to this, and the width direction length of the inner sheet 30 and the width direction length of the outer sheet 40 may be formed to be the same length, or the width direction length of the inner sheet 30 may be formed to be longer than the width direction length of the outer sheet 40.

[0052] The thickness of the main body 10 is preferably 2.0 mm or more, more preferably 2.5 mm or more, and even more preferably 3.5 mm or more, from the viewpoint of improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples. By improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples, the heat generated by the heating element 20 is more easily transmitted to the wearer's eyes and / or the area around the eyes and temples, thereby enhancing the thermal effect on the wearer's eyes and / or the area around the eyes and temples. This also improves the sense of immersion provided to the wearer. Furthermore, from the viewpoint of reducing the load of the main body 10 on the wearer's face and providing comfort to the wearer, the thickness of the main body 10 is preferably 30.0 mm or less, more preferably 20.0 mm or less, and even more preferably 15.0 mm or less. That is, the thickness of the main body 10 is preferably 2.0 mm or more and 30.0 mm or less, more preferably 2.5 mm or more and 20.0 mm or less, and even more preferably 3.5 mm or more and 15.0 mm or less.

[0053] In this specification, the "thickness of the main body portion" refers to the thickness of the main body portion 10 only, and does not include the thickness of the heating element 20. Furthermore, as will be described later, when the main body portion 10 is made up of a single sheet, the thickness of the main body portion 10 is the thickness of the single sheet. On the other hand, when the main body portion 10 is made up of multiple sheets, as in the main body portion 10 according to this embodiment, the thickness of the main body portion 10 is the total thickness of the multiple sheets.

[0054] The thickness of the inner sheet 30 is greater than the thickness of the outer sheet 40. Because the inner sheet 30, which is positioned closest to the wearer's skin when the eye mask 1 is worn, is thicker, a step corresponding to the thickness of the inner sheet 30 is formed when the eye mask 1 is worn, and the eye mask 1 conforms to the curves of the wearer's face, thereby improving the fit of the main body 10 to the wearer's eyes and / or the areas surrounding the eyes and temples. This makes it easier for heat generated by the heating element 20 to be transmitted to the wearer's eyes and / or the areas surrounding the eyes and temples, thereby enhancing the thermal effect on the wearer's eyes and / or the areas surrounding the eyes and temples. Furthermore, the improved fit of the main body 10 to the wearer's eyes and / or the areas surrounding the eyes and temples improves the sense of immersion provided to the wearer.

[0055] Specifically, the thickness of the inner sheet 30 is preferably 1.0 mm or more, more preferably 1.2 mm or more, and even more preferably 2.0 mm or more, from the viewpoint of improving the fit of the main body 10 to the wearer's eyes and / or the areas surrounding the eyes and temples. As described above, improving the fit of the main body 10 to the wearer's eyes and / or the areas surrounding the eyes and temples makes it easier for heat generated by the heating element 20 to be transmitted to the wearer's eyes and / or the areas surrounding the eyes and temples, thereby enhancing the thermal effect on the wearer's eyes and / or the areas surrounding the eyes and temples. It also improves the sense of immersion provided to the wearer. Furthermore, from the viewpoint of reducing the load of the main body 10 on the wearer's face and providing comfort to the wearer, the thickness of the inner sheet 30 is preferably 20.0 mm or less, more preferably 15.0 mm or less, and even more preferably 12.0 mm or less. That is, the thickness of the inner sheet 30 is preferably 1.0 mm or more and 20.0 mm or less, more preferably 1.2 mm or more and 15.0 mm or less, and even more preferably 2.0 mm or more and 12.0 mm or less.

[0056] The thickness of the portion of the main body 10 of the eye mask 1 where the heating element 20 is located is preferably 2.5 mm or more, more preferably 4.0 mm or more, and even more preferably 5.5 mm or more, from the viewpoint of improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples. By improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples, the heat generated by the heating element 20 is more easily transmitted to the wearer's eyes and / or the area around the eyes and temples, thereby enhancing the thermal effect on the wearer's eyes and / or the area around the eyes and temples. This also improves the sense of immersion provided to the wearer. The thickness of the portion of the main body 10 of the eye mask 1 where the heating element 20 is located is preferably 32.0 mm or less, more preferably 22.0 mm or less, and even more preferably 17.0 mm or less, from the viewpoint of reducing the load of the main body 10 on the wearer's face and providing comfort to the wearer. That is, the thickness of the portion of the main body 10 of the eye mask 1 where the heating element 20 is arranged is preferably 2.5 mm or more and 32.0 mm or less, more preferably 4.0 mm or more and 22.0 mm or less, and even more preferably 5.5 mm or more and 17.0 mm or less.

[0057] In this specification, the "thickness of the portion of the eye mask main body where the heating element is located" refers to the total thickness of the main body 10 and the heating element 20. If the thickness of the heating element 20 varies depending on the portion, the thickness of the thickest portion shall be used.

[0058] The inner sheet 30 is breathable. The inner sheet 30 being breathable allows water vapor emitted from the heating element 20 to be supplied to the wearer's eyes and / or the area around the eyes, thereby advantageously warming the wearer's eyes and / or the area around the eyes. On the other hand, the outer sheet 40 is breathable or non-breathable. The outer sheet 40 being breathable or non-breathable allows water vapor emitted from the heating element 20 to be efficiently supplied to the wearer's eyes and / or the area around the eyes. Note that the inner sheet 30 may be breathable or non-breathable, or the outer sheet 40 may be breathable. Furthermore, a portion of the inner sheet 30 or the outer sheet 40 may be configured to be breathable, breathable, or non-breathable.

[0059] From the viewpoint of efficiently supplying water vapor to the wearer's eyes and / or the area around the eyes, the air permeability of the inner sheet 30 is preferably 150,000 sec / 100 mL or less, more preferably 50,000 sec / 100 mL or less, even more preferably 30,000 sec / 100 mL or less, and even more preferably 10,000 sec / 100 mL or less.

[0060] In this specification, the term "air permeability" refers to a value measured according to JIS P8117 (revised in 2009), which is the value at which 100 mL of air passes through a hole of 6.42 cm under a constant pressure. ２ The air permeability is defined as the time it takes for air to pass through an area of ​​10000 s / 100 mL. Therefore, a large air permeability value means that it takes longer for air to pass through, i.e., the air permeability is low. Conversely, a small air permeability value means that the air permeability is high. Thus, the air permeability value and the level of air permeability show an inverse relationship. Air permeability can be measured using an Oken air permeability meter. In addition, in this specification, an air permeability of less than 30,000 s / 100 mL is defined as "air permeable," an air permeability of 30,000 s / 100 mL or more but less than 80,000 s / 100 mL is defined as "impermeable," and an air permeability of 80,000 s / 100 mL or more is defined as "non-breathable."

[0061] The materials for the inner sheet 30 and the outer sheet 40 can be materials conventionally used in the technical field of eye masks. For example, nonwoven fabric, fiber sheets such as woven fabric and paper, resin foam sheets, metal sheets, or combinations thereof can be used. Among these, nonwoven fabric is preferred from the viewpoints of ease of processing and economy. The inner sheet 30 and the outer sheet 40 according to this embodiment are made of nonwoven fabric.

[0062] The fiber material of the nonwoven fabric is preferably one composed of one or more fibers selected from polyesters such as PET (polyethylene terephthalate); polyolefins such as PE (polyethylene), PP (polypropylene), and ethylene-propylene copolymers; rayon; cotton; etc. The nonwoven fabric may be manufactured using one or more of the above-mentioned fibers by an air-through method, spunbonding method, needle punching method, meltblown method, carding method, heat fusion method, hydroentanglement method, solvent bonding method, etc., and may have a single-layer or multi-layer structure. The nonwoven fabric may be chemically treated depending on the purpose.

[0063] The inner sheet 30 and the outer sheet 40 may each have a single-layer structure consisting of a single sheet material, regardless of whether they are single-layer or multi-layer, or a multi-layer structure consisting of two or more overlapping sheet materials. Furthermore, the inner sheet 30 and the outer sheet 40 may be made of different materials. Specifically, the outer sheet 40, which faces away from the wearer's skin when the eye mask 1 is worn, may be made of a material suitable for providing shape retention to the eye mask 1, or a material suitable for improving the texture and appearance of the outer surface. On the other hand, the inner sheet 30, which faces the wearer's skin when the eye mask 1 is worn, may be made of a material designed for a comfortable feel against the skin. The inner sheet 30 and the outer sheet 40 may be colored in any color or may have any pattern (design) printed on them. This configuration improves the texture and style of the eye mask 1, allowing the user to customize it to their liking.

[0064] In the present embodiment, the main body 10 has been described as having an inner sheet 30 and an outer sheet 40, but this is not limited thereto. For example, the main body 10 may have a configuration including only one of the inner sheet 30 and the outer sheet 40. That is, the main body 10 may be composed of a single sheet, or may be composed of multiple sheets. Furthermore, the main body 10 may have another sheet between the inner sheet 30 and the heating element 20, or another sheet between the outer sheet 40 and the heating element 20. When the main body 10 is composed of a single sheet, the heating element 20 may be adhered to the single sheet, or may be housed in a heating element housing formed in the single sheet.

[0065] The main body 10 having the above configuration is configured to be able to conduct heat from the heating element 20 to the wearer's temples. Specifically, the main body 10 is configured to conduct heat from the heating element 20 to the wearer's temples by covering the wearer's eyes and / or the areas around the eyes and the temples when the eye mask 1 is worn. That is, when the wearer's eyes and / or the areas around the eyes and the temples are covered by the main body 10, the heat generated from the heating element 20 is first conducted to the area of ​​the main body 10 facing the wearer's eyes and / or the areas around the eyes. Next, the heat conducted to the area of ​​the main body 10 facing the wearer's eyes and / or the areas around the eyes is conducted to the area of ​​the main body 10 facing the wearer's temples. Finally, the heat conducted to the area of ​​the main body 10 facing the wearer's temples is conducted to the wearer's temples.

[0066] In particular, the main body 10 according to this embodiment improves the fit of the main body 10 to the wearer's eyes and / or the areas surrounding the eyes and temples by incorporating at least one of the above-described configurations of the shape of the main body 10, the arrangement of the ear insertion portion 16, the thickness of the main body 10, and the thickness of the inner sheet 30. This makes it easier for heat generated by the heating element 20 to be transmitted to the wearer's eyes and / or the areas surrounding the eyes and temples, thereby enhancing the thermal effect on the wearer's eyes and / or the areas surrounding the eyes and temples.

[0067] Furthermore, in this embodiment, the main body 10 does not have any folding lines for folding the ear insertion portions 16 inward in the width direction. That is, in this embodiment, the main body 10 does not have folding lines for folding the ear insertion portions 16 inward in the width direction, but rather has ear insertion portions 16 formed at both widthwise ends of the main body 10. This allows the eye mask 1 to fit closely to the shape of the wearer's face when worn, further improving the fit of the eye mask 1 when worn.

[0068] [Configuration of Heating Element] The heating elements 20 are provided on the first panel portion 10A and the second panel portion 10B, respectively, so as to be symmetrical with respect to the vertical center line 14. As shown in Figures 1 to 3, in this embodiment, one heating element 20 is provided on each of the first panel portion 10A and the second panel portion 10B.

[0069] Two heating elements 20 may be provided on each of the first panel portion 10A and the second panel portion 10B, or one may be provided on the entire main body portion 10. Furthermore, when multiple heating elements 20 are provided on the main body portion 10, the heating characteristics of the multiple heating elements 20, which will be described later, may be the same or different, but it is more preferable that they are the same.

[0070] In the following description, the heating element 20 provided on the first panel portion 10A will be referred to as "heating element 20A," the heating element 20 provided on the second panel portion 10B will be referred to as "heating element 20B," and heating element 20A and heating element 20B will be collectively referred to as "heating element 20."

[0071] The planar shape of the heating elements 20A and 20B is not particularly limited, and may be, for example, circular, polygonal, etc. However, from the viewpoints of manufacturing efficiency, ease of handling, and thermal effect, the planar shape of the heating elements 20A and 20B is preferably quadrangular, such as rectangular, approximately rectangular, square, or approximately square, and from the viewpoint of ease of handling, a square or approximately square is more preferable. As shown in Figures 1, 2, and 5, the heating elements 20A and 20B according to this embodiment each have a square shape.

[0072] 1 , the distance D3 between the end of the ear insertion portion 16 on the first panel portion 10A opposite the longitudinal center line 14 and the end of the heating element 20A on the ear insertion portion 16 side is preferably 20 mm or more, more preferably 30 mm or more, and even more preferably 40 mm or more, from the viewpoint of improving the fit of the main body portion 10 to the wearer's eyes and / or the areas surrounding the eyes and temples. Furthermore, the distance D3 between the end of the ear insertion portion 16 on the first panel portion 10A opposite the longitudinal center line 14 and the end of the heating element 20A on the ear insertion portion 16 side is preferably 70 mm or less, more preferably 65 mm or less, and even more preferably 60 mm or less, from the viewpoint of improving the thermal effect on the wearer's eyes and / or the areas surrounding the eyes and temples. That is, the distance D3 between the end opposite the side on which the vertical center line 14 of the ear insertion portion 16 provided on the first panel portion 10A is located and the end on the ear insertion portion 16 side of the heating element 20A provided on the first panel portion 10A is preferably 20 mm or more and 70 mm or less, more preferably 30 mm or more and 65 mm or less, and even more preferably 40 mm or more and 60 mm or less.

[0073] In this specification, "the distance between the end opposite the side on which the vertical center line of the ear insertion portion provided on the first panel portion is located and the end of the heating element provided on the first panel portion on the ear insertion portion side" refers to the linear distance along the width direction from the end opposite the side on which the vertical center line 14 of the ear insertion portion 16 provided on the first panel portion 10A is located to the end of the heating element 20A provided on the first panel portion 10A on the ear insertion portion 16 side, as shown in Figure 1.

[0074] Regarding the distance between the end opposite the side on which the vertical center line 14 of the ear insertion portion 16 provided on the second panel portion 10B is located and the end on the ear insertion portion 16 side of the heating element 20B provided on the second panel portion 10B, the same numerical values ​​and definitions apply as for the "distance between the end opposite the side on which the vertical center line 14 of the ear insertion portion 16 provided on the first panel portion 10A is located and the end on the ear insertion portion 16 side of the heating element 20A provided on the first panel portion 10A," so explanation will be omitted.

[0075] As shown in FIG. 1, the distance D4 between the vertical center line 14 and the end of the heating element 20A provided in the first panel portion 10A on the vertical center line 14 side is preferably 2 mm or more and 40 mm or less, more preferably 5 mm or more and 35 mm or less, and even more preferably 8 mm or more and 30 mm or less, from the viewpoint of positioning the heating element 20A at the wearer's eyes and / or around the eyes when the eye mask 1 is worn.

[0076] In this specification, the "distance between the vertical center line and the end of the heating element provided in the first panel portion on the vertical center line side" refers to the distance along the width direction from the vertical center line 14 to the end of the heating element 20A provided in the first panel portion 10A on the vertical center line 14 side, as shown in Figure 1.

[0077] Regarding the distance between the vertical center line 14 and the end portion of the heating element 20B provided on the second panel portion 10B on the vertical center line 14 side, the same numerical values ​​and definitions apply as for the "distance between the vertical center line 14 and the end portion of the heating element 20A provided on the first panel portion 10A on the vertical center line 14 side," so explanation will be omitted.

[0078] The heating element 20 having the above-described configuration is arranged in the main body 10 so as to directly or indirectly face the wearer's eyes and / or the area around the eyes when the eye mask 1 is worn.

[0079] In this specification, "indirectly facing the wearer's eyes and / or the area around the eyes" means that the heating element 20 faces the wearer's eyes and / or the area around the eyes via the sheet that constitutes the main body 10.

[0080] In this embodiment, the heating element 20 is provided between the inner sheet 30 and the outer sheet 40, and is configured to face the wearer's eyes and the areas surrounding the eyes via the inner sheet 30 when the eye mask 1 is worn. In other words, the heating element 20 is disposed in the main body 10 so as to indirectly face the wearer's eyes and the areas surrounding the eyes when the eye mask 1 is worn.

[0081] The heating element 20 may be arranged on the main body 10 so as to indirectly face the wearer's eyes or the area around the eyes, or may be arranged on the main body 10 so as to directly face the wearer's eyes and / or the area around the eyes. When the heating element 20 is arranged on the main body 10 so as to directly or indirectly face the area around the wearer's eyes, the area of ​​the heating element 20 facing the wearer's eyes is open.

[0082] [Heat generation characteristics of the heating element] The heating element 20 is configured to generate heat by reacting with oxygen in the air. In this embodiment, the heating element 20 is configured to generate heat by reacting with oxygen in the air, generate water vapor, and supply the heated water vapor to the wearer's eyes and / or the area around the eyes. That is, the heating element 20 according to this embodiment is configured to generate hot steam through the oxidation reaction of an oxidizable metal. Note that an example of a configuration in which the heating element 20 only generates heat, i.e., a configuration in which the heating element 20 does not generate water vapor, is a configuration in which the heating element 20 does not include the water retention layer 24 described below.

[0083] Examples of the form of the heating element 20 that can be used include a powder mixture (see, for example, the description in JP 2004-16753 A (JP Patent Application No. 2002-180501)), a sheet such as a paper-made sheet (see, for example, the description in JP 2005-058744 A (JP Patent Application No. 2004-31360)), or a coated sheet in which a dispersion or the like is applied to a substrate (see, for example, the description in JP 2013-146555 A (JP Patent Application No. 2012-279804)). The heating element 20 preferably contains an oxidizable metal, a carbon component, and water.

[0084] The oxidizable metal is a metal that generates heat of oxidation reaction, and examples thereof include powders or fibers of one or more types selected from iron, aluminum, zinc, manganese, magnesium, and calcium. Among these, iron is preferred in terms of ease of handling, safety, production cost, storage stability, and stability, and iron powder is particularly preferred. Examples of iron powder include reduced iron powder and atomized iron powder. The particle size of the oxidizable metal particles can be, for example, about 0.1 μm or more and 300 μm or less.

[0085] The carbon component has at least one of the functions of water retention, oxygen supply, and catalytic activity, and preferably has all three. For example, one or more carbon components selected from activated carbon, acetylene black, and graphite can be used. Among these, activated carbon is more preferably used because it easily adsorbs oxygen when wet and maintains a constant moisture content in the heating element 20.

[0086] The heating element 20 further contains a water-retaining material. There are no particular restrictions on the type of water-retaining material as long as it can retain water, but it is preferable that it has excellent vapor dissipation properties. Examples of the water-retaining material include one or more types selected from water-absorbing powders such as carbon components, fibrous materials, superabsorbent polymers (SAP), starch, zeolite, perlite, and vermiculite. An appropriate water-absorbing agent is used depending on the shape of the heating element 20.

[0087] The detailed structure of the heating element 20 will now be described with reference to Figures 5 and 6. As shown in Figures 5 and 6, the heating element 20 has a first sheet 21 that is positioned on the skin side of the wearer when the eye mask 1 is worn, a second sheet 22 that is positioned on the non-skin side of the wearer when the eye mask 1 is worn, a base layer 23 provided between the first sheet 21 and the second sheet 22, a water-retaining layer 24 provided between the first sheet 21 and the base layer 23, and a heating layer 25 provided between the base layer 23 and the water-retaining layer 24, and is formed into a sheet-like shape having a laminated structure as a whole.

[0088] When the heating element 20 is provided in the main body 10, the first sheet 21 is configured to face the inner sheet 30 of the main body 10, and the second sheet 22 is configured to face the outer sheet 40 of the main body 10. The first sheet 21 and the second sheet 22 are joined together at their peripheral edges, and are formed as a bag-like structure having an internal space as a whole. That is, in this embodiment, the base layer 23, the water retention layer 24, and the heating layer 25 are contained in the internal space formed between the first sheet 21 and the second sheet 22. In this way, the first sheet 21 and the second sheet 22 are formed as a bag-like structure having an internal space, which has the advantage of being able to appropriately adjust the amount of heat and water vapor.

[0089] The first sheet 21 is breathable. The breathability of the first sheet 21 allows water vapor released from the water retaining layer 24 to be supplied to the wearer's eyes and / or the area around the eyes, thereby advantageously warming the wearer's eyes and / or the area around the eyes. On the other hand, the second sheet 22 is breathable or non-breathable. The breathability or non-breathability of the second sheet 22 allows water vapor released from the water retaining layer 24 to be efficiently supplied to the wearer's eyes and / or the area around the eyes. Note that the first sheet 21 may be breathable or non-breathable, or the second sheet 22 may be breathable. Furthermore, a portion of the first sheet 21 or the second sheet 22 may be breathable, breathable, or non-breathable.

[0090] From the viewpoint of providing comfort to the wearer, the maximum temperature of the heating element 20 is preferably 54°C or higher, more preferably 58°C or higher, and even more preferably 62°C or higher. Furthermore, from the viewpoint of preventing discomfort to the wearer, the maximum temperature of the heating element 20 is preferably 72°C or lower, more preferably 70°C or lower, and even more preferably 68°C or lower. That is, the maximum temperature of the heating element 20 is preferably 54°C or higher and 72°C or lower, more preferably 58°C or higher and 70°C or lower, and even more preferably 62°C or higher and 68°C or lower. The maximum temperature of the heating element 20 can be measured, for example, using a measuring device conforming to JIS S4100. Specifically, the measuring surface of a measuring device conforming to JIS S4100 is attached to the region of the outer sheet 40 where the heating element 20 is located, and the heating element 20 is allowed to start generating heat in the presence of oxygen, and the maximum temperature (°C) reached thereafter can be measured as the maximum temperature of the heating element 20.

[0091] From the viewpoint of providing comfort to the wearer, the heat generating element 20 preferably has a heat generating time (45°C or higher heat generation duration) of 15 minutes or more, more preferably 20 minutes or more, and even more preferably 25 minutes or more. The 45°C or higher heat generation duration can also be measured using a measuring device conforming to JIS S4100, for example. Specifically, the measuring surface of a measuring device conforming to JIS S4100 is attached to the region of the outer sheet 40 where the heat generating element 20 is located, and the heat generating element 20 starts to generate heat in the presence of oxygen. The 45°C or higher heat generation duration can then be measured as the duration from when the temperature reaches 45°C or higher until it drops below 45°C.

[0092] The total cumulative amount of water vapor emitted from the heating element 20 within 10 minutes from the start of water vapor generation is preferably 140 mg or more, more preferably 300 mg or more, even more preferably 1000 mg or more, and even more preferably 1600 mg or more, from the viewpoint of supplying sufficient water vapor to the wearer's eyes and / or the area around the eyes. Furthermore, the total cumulative amount of water vapor emitted from the heating element 20 within 10 minutes from the start of water vapor generation is preferably 2400 mg or less, more preferably 2200 mg or less, even more preferably 2000 mg or less, and even more preferably 1800 mg or less, from the viewpoint of maintaining a comfortable temperature. Note that the "cumulative amount of water vapor emitted within 10 minutes from the start of water vapor generation" refers to the total amount (total) of all heating elements 20 provided in the main body 10.

[0093] That is, in this embodiment, the cumulative amount of water vapor emitted from the heating elements 20A and 20B over a 10-minute period from the start of water vapor generation is preferably 70 mg or more per cell, more preferably 150 mg or more, more preferably 500 mg or more, and even more preferably 800 mg or more. Furthermore, the cumulative amount of water vapor emitted from the heating elements 20A and 20B over a 10-minute period from the start of water vapor generation is preferably 1200 mg or less per cell, more preferably 1100 mg or less, even more preferably 1000 mg or less, and even more preferably 900 mg or less. This configuration has the advantage that the amount of water vapor emitted from the heating elements 20A and 20B can be adjusted, and the water vapor emitted from the heating elements 20A and 20B does not become too hot, providing comfort to the wearer.

[0094] [Method for Measuring the Amount of Water Vapor Generated] In this specification, "steam is generated" means that the total amount of water vapor generated from one cell of the heating element 20 (in this embodiment, heating element 20A or heating element 20B) over 10 minutes, as measured by the following method, is 10 mg / 10 minutes or more. This amount of water vapor generated can be easily achieved by using, for example, a paste containing an oxidizable metal, a carbon material, and water as the heating element 20. Here, the cumulative amount of water vapor generated from the start of water vapor generation by the heating element 20 over 10 minutes is a value measured as follows using a measuring device 50 shown in FIG. 7. In the following description, the target is an unheated heating element 20 that is sealed in an oxygen-shielding bag or the like. The "start time of heat generation" is defined as the time required from the start of opening the oxygen-shielding bag, exposing the heating element 20 to an oxygen-containing atmosphere such as air, and placing the heating element 20 in the measuring device 50 shown in FIG. 7 from the start of opening the bag, i.e., 5 seconds after the start of opening. The measuring device 50 shown in Figure 7 includes an aluminum measuring chamber (volume 4.2 L) 51, an inlet channel 52 for introducing dehumidified air (humidity less than 2%, flow rate 2.1 L / min) into the lower part of the measuring chamber 51, an outlet channel 53 for discharging air from the upper part of the measuring chamber 51, an inlet thermo-hygrometer 54 and an inlet flow meter 55 provided in the inlet channel 52, an outlet thermo-hygrometer 56 and an outlet flow meter 57 provided in the outlet channel 53, and a thermometer (thermistor) 58 provided in the measuring chamber 51. The thermometer 58 has a temperature resolution of about 0.01°C. Note that the amount of steam generated in this specification refers to the total amount measured up to 10 minutes after the "start of heat generation" of the heating element 20.

[0095] The heating element 20 may contain, for example, fragrance components described in "Synthetic Fragrance Chemistry and Product Knowledge" (by Genichi Indo, published by The Chemical Daily) within the range that does not impair the effects of the present invention. Specific examples include terpene hydrocarbons such as myrcene, farnesene, pinene, limonene, camphene, phellandrene, terpinene, terpinolene, p-cymene, cedrene, and caryophyllene; aldehydes such as hexyl cinnamic aldehyde, 2-methyl-3-(4-tert-butylphenyl)-propanal, 4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde, and vanillin; aromatic alcohols such as benzyl alcohol, phenylethyl alcohol, pamplefleur (2-methyl-4-phenylpentanol), dimethylbenzyl carbinol, and phenylhexanol (3-methyl-5-phenylpentanol); phenols such as anethole and eugenol; and lactones such as γ-nonalactone and γ-undecalactone.

[0096] [Method of Using the Eye Mask] Next, we will explain how to use the eye mask 1 according to this embodiment. Before use, the eye mask 1 according to this embodiment is stored in an oxygen-blocking bag (not shown).

[0097] When using the eye mask 1, the wearer first opens the oxygen-blocking bag and removes the eye mask 1. This brings the heating element 20 into contact with air, and the heating element 20 starts to generate heat due to an oxidation reaction of the oxidizable metal contained in the heating element 20.

[0098] After removing the eye mask 1 from the oxygen-blocking bag, the wearer grasps the first panel portion 10A near the side edge 13, inserts their right ear through the ear insertion portion 16 of the first panel portion 10A, and hooks the first panel portion 10A near the side edge 13 around their right ear. Next, with the first panel portion 10A near the side edge 13 hooked around their right ear, the wearer grasps the second panel portion 10B near the side edge 13 (see FIG. 8( a)), inserts their left ear through the ear insertion portion 16 of the second panel portion 10B, and hooks the second panel portion 10B near the side edge 13 around their left ear (see FIG. 8( b)). This results in the wearer's eyes, the areas around the eyes, and temples being covered by the main body portion 10.

[0099] When the wearer's eyes, the area around the eyes, and the temples are covered by the main body 10, the heat generating layer 25 of the heat generating element 20 generates heat, causing the water in the water retention layer 24 of the heat generating element 20 to evaporate into water vapor (hot steam) at a predetermined temperature, which is then supplied to the wearer's eyes and the area around the eyes via the first sheet 21 and the inner sheet 30. The heat generated by the heat generating element 20 is conducted to the area of ​​the main body 10 facing the wearer's eyes and the area around the eyes, and the heat conducted to the area of ​​the main body 10 facing the wearer's eyes and the area around the eyes is then conducted back to the wearer's eyes and the area around the eyes. This warms the wearer's eyes and the area around the eyes, providing comfort to the wearer.

[0100] Furthermore, because the main body 10 according to this embodiment covers the temples of the wearer, heat conducted to the area of ​​the main body 10 facing the eyes and the area around the eyes is conducted to the area of ​​the main body 10 facing the temples of the wearer, and heat conducted to the area of ​​the main body 10 facing the temples of the wearer is conducted to the temples of the wearer. This makes it possible to warm the temples of the wearer, improving comfort for the wearer.

[0101] [Advantages of the eye mask of this embodiment] As described above, the eye mask 1 of this embodiment comprises a main body 10 that covers the wearer's eyes and / or the area around the eyes and temples when worn, a pair of ear attachment parts that can be attached to the wearer's ears, and a heating element 20 provided on the main body 10, and the heating element 20 is positioned on the main body 10 so that it directly or indirectly faces the wearer's eyes and / or the area around the eyes when worn, and the main body 10 is configured to be able to conduct heat from the heating element 20 to the wearer's temples.

[0102] With the eye mask 1 having this configuration, heat generated by the heating element 20 is conducted to the area of ​​the main body 10 facing the wearer's eyes and / or the area around the eyes, and the heat conducted to the area of ​​the main body 10 facing the wearer's eyes and / or the area around the eyes is conducted back to the wearer's eyes and / or the area around the eyes. This warms the wearer's eyes and / or the area around the eyes, providing comfort to the wearer. Furthermore, the heat conducted to the area of ​​the main body 10 facing the wearer's eyes and / or the area around the eyes is conducted to the area of ​​the main body 10 facing the wearer's temples, and the heat conducted to the area of ​​the main body 10 facing the wearer's temples is conducted to the wearer's temples. This warms the wearer's temples, improving comfort to the wearer.

[0103] Furthermore, since the main body 10 covers the wearer's eyes and / or the area around the eyes and temples when worn, the area covered by the main body 10 relative to the wearer's face is increased, giving the wearer a sense of immersion. In this way, the eye mask 1 according to this embodiment can improve the comfort of the wearer while giving the wearer a sense of immersion, so that the wearer can obtain a high level of relaxation.

[0104] Furthermore, in the eye mask 1 according to this embodiment, the main body 10 has an inner sheet 30 that faces the wearer's skin when worn, and an outer sheet 40 that faces away from the wearer's skin when worn, and the heating element 20 is provided between the inner sheet 30 and the outer sheet 40. With an eye mask 1 having such a configuration, the heating element 20 can be stably held.

[0105] Furthermore, in the eye mask 1 according to this embodiment, the main body 10 has a vertical centerline 14 that divides the main body 10 in half widthwise, a first panel 10A that forms one side of the vertical centerline 14, and a second panel 10B that forms the other side of the vertical centerline 14. The heating element 20 is provided in each of the first panel 10A and the second panel 10B. With this configuration, the heating element 20 is not positioned between the wearer's eyebrows or above the nose, improving the fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples. This allows heat generated by the heating element 20 to be more easily transferred to the wearer's eyes and / or the area around the eyes and temples, enhancing the thermal effect on the wearer's eyes and / or the area around the eyes and temples. Furthermore, the improved fit of the main body 10 to the wearer's eyes and / or the area around the eyes and temples improves the sense of immersion felt by the wearer.

[0106] [Modifications] The eye mask according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the technical concept of the present invention.

[0107] For example, in the above-described embodiment, the entire eye mask 1 is described as being sealed in an oxygen-blocking bag (not shown) before use, but this is not limited to this. If the heating element 20 is not integrated with the main body 10 (if it can be retrofitted to the main body 10), only the heating element 20 may be sealed in the oxygen-blocking bag, and the heating element 20 may be attached to the main body 10 when the eye mask 1 is used.

[0108] Furthermore, in the above-described embodiment, the main body 10 has been described as having the nose insertion portion 15, but this is not limitative, and the main body 10 may be configured without the nose insertion portion 15.

[0109] Furthermore, in the above-described embodiment, the heating element 20 has been described as having the water retaining layer 24, but this is not limitative, and the heating element 20 may be configured without the water retaining layer 24.

[0110] Furthermore, in the above-described embodiment, the heating element 20 is described as generating hot steam through an oxidation reaction of an oxidizable metal, but this is not limited to this, and various other configurations can be adopted, such as a configuration in which a filter that retains moisture can be humidified by heating it in a microwave oven or the like before use.

[0111] It is clear from the claims that the above-mentioned modifications are included within the scope of the present invention.

[0112] In relation to the above-described embodiment, the present invention further discloses the following eye mask.

[0113] <1> An eye mask comprising: a main body portion that covers the wearer's eyes and / or the area around the eyes and temples when worn; a pair of ear attachment portions that can be attached to the wearer's ears; and a heating element provided in the main body portion, wherein the heating element is positioned in the main body portion so as to directly or indirectly face the wearer's eyes and / or the area around the eyes when worn; and the main body portion is configured to be able to conduct heat from the heating element to the wearer's temples.

[0114] <2> The eye mask according to <1>, wherein the ear attachment portion is an ear insertion portion that can be inserted over the wearer's ear and is provided on the main body portion, and the distance between the end of one ear insertion portion facing the heating element and the end of the other ear insertion portion facing the heating element is 150 mm to 300 mm, preferably 185 mm to 280 mm, and more preferably 200 mm to 255 mm. <3> The eye mask according to <1> or <2>, wherein the thickness of the main body is 2 mm to 30 mm, preferably 2.5 mm to 20 mm, and more preferably 3.5 mm to 15 mm. <4> The eye mask according to any one of <1> to <3>, wherein the main body has an inner sheet that faces the wearer's skin when worn and an outer sheet that faces away from the wearer's skin when worn. <5> The eye mask according to any one of <4> above, wherein the thickness of the inner sheet is 1 mm or more and 20 mm or less, preferably 1.2 mm or more and 15 mm or less, and more preferably 2 mm or more and 12 mm or less.

[0115] <6> The eye mask according to <4> or <5>, wherein the thickness of the inner sheet is greater than the thickness of the outer sheet. <7> The eye mask according to any one of <4> to <6>, wherein the width of the inner sheet is shorter than the width of the outer sheet. <8> The eye mask according to any one of <4> to <7>, wherein the width of the inner sheet is 160 mm or more, preferably 170 mm or more, and more preferably 180 mm or more. <9> The eye mask according to any one of <4> to <8>, wherein the inner sheet is breathable, and the outer sheet is poorly breathable or non-breathable.

[0116] <10> The eye mask according to <9>, wherein the air permeability of the inner sheet is 150,000 sec / 100 mL or less, preferably 50,000 sec / 100 mL or less, more preferably 30,000 sec / 100 mL or less, and even more preferably 10,000 sec / 100 mL or less. <11> The eye mask according to any one of <1> to <10>, wherein the main body portion has a vertical center line dividing the main body portion in half in the width direction, a first panel portion constituting one side in the width direction with the vertical center line as the boundary, and a second panel portion constituting the other side in the width direction with the vertical center line as the boundary, and the heating element is provided in each of the first panel portion and the second panel portion. <12> The ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, and is provided on the first panel portion and the second panel portion, wherein the distance between the end of the ear insertion portion on the first panel portion opposite to the side on which the vertical center line is located and the end of the heating element on the first panel portion facing the ear insertion portion is 20 mm to 70 mm, preferably 30 mm to 65 mm, and more preferably 40 mm to 60 mm, and the distance between the end of the ear insertion portion on the second panel portion opposite to the side on which the vertical center line is located and the end of the heating element on the second panel portion facing the ear insertion portion is 20 mm to 70 mm, preferably 30 mm to 65 mm, and more preferably 40 mm to 60 mm. The eye mask according to <11>. <13> The eye mask according to <11> or <12>, wherein the ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, and is provided on the first panel portion and the second panel portion, and the distance between the vertical center line and the end of the ear insertion portion on the heating element side is 75 mm to 150 mm, preferably 92.5 mm to 140 mm, and more preferably 100 mm to 127 mm.

[0117] <14> The eye mask according to any one of <11> to <13>, wherein the distance between the vertical center line and the end of the heating element provided in the first panel portion on the side of the vertical center line is 2 mm to 40 mm, preferably 5 mm to 35 mm, and more preferably 8 mm to 30 mm, and the distance between the vertical center line and the end of the heating element provided in the second panel portion on the side of the vertical center line is 2 mm to 40 mm, preferably 5 mm to 35 mm, and more preferably 8 mm to 30 mm. <15> The area of ​​the first panel portion is 5% to 50% of the area of ​​the heating element provided in the first panel portion, preferably 8% to 30% and more preferably 10% to 25%. The eye mask according to any one of <11> to <14>, wherein the area of ​​the second panel portion is 5% to 50% of the area of ​​the heating element provided in the second panel portion, preferably 8% to 30% and more preferably 10% to 25%. <16> The area of ​​the first panel portion is 1500 mm ２ Over 4000mm ２ Less than or equal to 1750 mm ２ 3000mm or more ２ It is preferable that the length is 2000 mm or less. ２ 2750mm or more ２ More preferably, the area of ​​the second panel portion is 1500 mm or less. ２ Over 4000mm ２ Less than or equal to 1750 mm ２ 3000mm or more ２ It is preferable that the length is 2000 mm or less. ２ 2750mm or more ２The eye mask according to any one of <11> to <15>, wherein the width of the first panel portion is 110 mm to 160 mm, preferably 120 mm to 155 mm, and more preferably 130 mm to 150 mm, and the width of the second panel portion is 110 mm to 160 mm, preferably 120 mm to 155 mm, and more preferably 130 mm to 150 mm. The eye mask according to any one of <11> to <16>, wherein the width of the first panel portion is 110 mm to 160 mm, preferably 120 mm to 155 mm, and more preferably 130 mm to 150 mm.

[0118] <18> The eye mask according to any one of <1> to <17>, wherein the main body conducts heat from the heating element to an area of ​​the main body facing the wearer's eyes and / or the area around the eyes, and conducts the heat conducted to the area of ​​the main body facing the wearer's eyes and / or the area around the eyes to an area of ​​the main body facing the wearer's temples, and also conducts the heat conducted to the area of ​​the main body facing the wearer's temples to the wearer's temples. <19> The eye mask according to any one of <1> to <18>, wherein the main body is configured to cover the wearer's eyes, the areas around the eyes, and the temples when worn. <20> The eye mask according to any one of <1> to <19>, wherein the heating element is arranged in the main body so as to indirectly face the wearer's eyes and the area around the eyes when worn. <21> The eye mask according to any one of <1> to <20>, wherein the main body is formed in a rectangular shape that is elongated in the width direction.

[0119] <22> The eye mask according to any one of <1> to <21>, wherein the ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, and is formed directly on the main body portion. <23> The eye mask according to any one of <1> to <22>, wherein the main body portion has a nose insertion portion through which the wearer's nose can be inserted, and the nose insertion portion is formed on a vertical center line that divides the main body portion in half in the width direction. <24> The eye mask according to any one of <1> to <23>, wherein the area of ​​the main body portion is 5% to 50% of the total area of ​​the heating element, preferably 8% to 30%, and more preferably 10% to 25%. <25> The eye mask according to any one of <1> to <23>, wherein the area of ​​the main body portion is 10,000 mm ２ More than 50,000 mm ２ Less than or equal to 15,000 mm ２ More than 40,000 mm ２ It is preferable that the length is 20,000 mm or less. ２ More than 35000mm ２ The eye mask according to any one of <1> to <24> above is more preferably:

[0120] <26> The eye mask according to any one of <1> to <25>, wherein the width direction length of the main body portion is 220 mm or more and 360 mm or less, preferably 240 mm or more and 340 mm or less, and more preferably 260 mm or more and 320 mm or less. <27> The eye mask according to any one of <1> to <26>, wherein the vertical length of the main body portion is 80 mm or more and 130 mm or less, preferably 85 mm or more and 110 mm or less, and more preferably 90 mm or more and 105 mm or less. <28> The eye mask according to any one of <1> to <27>, wherein the main body portion does not have a folding line for folding the ear attachment portion inward in the width direction. <29> The eye mask according to any one of <1> to <28>, wherein the thickness of the portion of the main body where the heating element is arranged is 2.5 mm or more and 32.0 mm or less, preferably 4.0 mm or more and 22.0 mm or less, and more preferably 5.5 mm or more and 17.0 mm or less. <30> The eye mask according to any one of <1> to <29>, wherein the heating element has a rectangular planar shape.

[0121] The present invention will be specifically described below based on examples, but the object of the present invention is not limited to these examples.

[0122] Example 1 An eye mask according to Example 1 was produced according to the following procedure.

[0123] [Preparation of Heating Element] First, salt as an electrolyte and a thickener (Labor Gum GS-C: manufactured by DSP Gokyo Food & Chemical Co., Ltd.) were dissolved in water (tap water) to prepare an aqueous solution. Iron powder (reduced iron powder: manufactured by Dowa IP Creation Co., Ltd.) was added as an oxidizable metal and stirred. Activated carbon (Carborafine: manufactured by Osaka Gas Chemicals Co., Ltd.) was then added as a reaction accelerator and stirred thoroughly until uniformly dispersed, yielding a paste-like heat-generating composition. The salts used were sodium chloride (Japanese Pharmacopoeia sodium chloride: manufactured by Tomita Pharmaceutical Co., Ltd.), tripotassium phosphate (food additive tripotassium phosphate: manufactured by Yoneyama Chemical Co., Ltd.), and potassium hydroxide (liquid caustic potash (48%): manufactured by Asahi Glass Co., Ltd.). The blending ratios were 55.2% iron powder, 34.2% water, 4.4% activated carbon, 0.1% thickener (xanthan gum), 1.0% tripotassium phosphate, 0.1% potassium hydroxide, and 5.0% sodium chloride.

[0124] Thereafter, the heat generating composition paste described above was applied to a polyethylene-laminated tissue paper in a basis weight of 745 g / m. ２ Then, a sheet of wood pulp paper (basis weight 20 g / m) was applied onto the heat-generating composition. ２ , manufactured by Ino Paper Co., Ltd.) and a water-absorbing polymer (spherical, average particle size 300 μm, Aqualic CA, manufactured by Nippon Shokubai Co., Ltd., basis weight 70 g / m ２ ) and wood pulp paper (basis weight 30 g / m ２ , manufactured by Ino Paper Co., Ltd.) and an integrated polymer sheet (air permeability of 2 seconds / 100 mL when absorbing 10 to 45% by mass of the maximum water absorption capacity) was laminated to obtain a laminate of a base material layer 23, a heat-generating layer 25, and a water-retaining layer 24. This laminate (base material layer 23, heat-generating layer 25, and water-retaining layer 24) was cut to a size of 49 mm x 49 mm. Next, the laminate (base material layer 23, heat-generating layer 25, and water-retaining layer 24) was sandwiched between an air-permeable first sheet 21 and an air-impermeable second sheet 22 cut to a size of 63 mm x 63 mm, and the four sides of these sheets were heat-sealed to obtain a heat-generating element 20 in which the base material layer 23, heat-generating layer 25, and water-retaining layer 24 were housed within a bag made of the first sheet 21 and the second sheet 22.

[0125] [Preparation of eye mask] First, the inner sheet 30 and the outer sheet 40 were prepared in the shapes shown in Fig. 1 and Fig. 2. The inner sheet 30 was made of a nonwoven fabric made of polypropylene and polyethylene (spunlace method, basis weight 60 g / m ２ The outer sheet 40 is a nonwoven fabric made of polyethylene and polyethylene terephthalate (air-through method, basis weight 30 g / m ２ The inner sheet 30 and the outer sheet 40 were produced in an oxygen atmosphere.

[0126] Next, the heating element 20 prepared as described above was sandwiched between the inner sheet 30 and the outer sheet 40, and the inner sheet 30 and the outer sheet 40 were joined together at their peripheral edges and near the vertical center line 14 to prepare the eye mask of Example 1. The main body 10 formed by joining the inner sheet 30 and the outer sheet 40 has a shape that covers the wearer's eyes, the areas around the eyes, and the temples when the eye mask is worn. Two heating elements 20 were arranged, one on each of the first panel 10A and the second panel 10B of the main body 10. The eye mask of Example 1 was prepared in an oxygen-free atmosphere.

[0127] [Examples 2 and 3] Eye masks according to Examples 2 and 3 were produced in the same manner as in Example 1, except that the thickness of the main body 10 was changed to change the thickness of the eye mask 1. In the eye masks according to Examples 1 to 3, the thickness of the main body 10 is as shown in Table 1.

[0128] [Comparative Example] An eye mask according to the comparative example was produced in the same manner as in Example 1, except that the shape of the main body 10 was changed so that when the eye mask is worn, the main body 10 covers only the wearer's eyes and the area around the eyes, i.e., so that when the eye mask is worn, the main body 10 does not cover the wearer's temples.

[0129] [Test 1] The following Test 1 was conducted on the eye masks of Example 1 and Comparative Example to evaluate which parts of the wearer's face are warmed when the eye mask is worn. The eye masks of Example 1 and Comparative Example were stored sealed in oxygen-blocking bags.

[0130] First, the eye mask according to Example 1 was removed from the oxygen-blocking bag and placed on a female human head model (width 151.24 mm, depth 206.82 mm, height 233.01 mm) modeled based on average female human head data (2014 edition) manufactured by Digital Human Technology Co., Ltd. Next, a thermograph (InfraRed Camera, manufactured by NEC Avio Infrared Technologies Co., Ltd.) was used to photograph the temperature distribution on the surface of the human head model 10 minutes after wearing the eye mask according to Example 1. The photographed results are shown in FIG. 9( a). Similarly, the eye mask according to the comparative example was removed from the oxygen-blocking bag and placed on the human head model. The thermograph was used to photograph the temperature distribution on the surface of the human head model 10 minutes after wearing the eye mask according to the comparative example. The photographed results are shown in FIG. 9( b). In addition, in FIGS. 9(a) and 9(b), the area surrounded by the dashed line indicates the position of the temples.

[0131] [Evaluation of Test 1] As shown in Fig. 9(a), when the eye mask of Example 1, which has a main body 10 that covers the wearer's eyes, the area around the eyes, and the temples, is worn, it is clear that the wearer's eyes and the area around the eyes are warmed, and the wearer's temples are also warmed. Therefore, it is clear that the eye mask of Example 1 can improve the comfort provided to the wearer. On the other hand, as shown in Fig. 9(b), when the eye mask of the comparative example, which has a main body 10 that covers only the wearer's eyes and the area around the eyes, is worn, it is clear that the wearer's eyes and the area around the eyes are warmed, but the wearer's temples are not warmed.

[0132] [Test 2] The following Test 2 was conducted on the eye masks of Examples 1 to 3 to evaluate whether there were any differences in fit to the wearer's eyes and the area around the eyes, fit to the wearer's temples, warmth of the wearer's eyes and the area around the eyes, warmth of the wearer's temples, and comfort felt by the wearer.

[0133] One expert panelist wore the eye masks according to Examples 1 to 3 and evaluated the fit to the wearer's eyes and the area around the eyes, the fit to the wearer's temples, the warmth of the wearer's eyes and the area around the eyes, the warmth of the wearer's temples, and the comfort felt by the wearer according to the following evaluation criteria.

[0134] [Evaluation criteria] ◎: Very good ○: Good ×: Bad

[0135]

[0136] [Evaluation of Test 2] The eye mask of Example 1 provided an excellent fit to the wearer's eyes, the area around the eyes, and the temples, and also provided excellent warmth to the wearer's eyes, the area around the eyes, and the temples, making it clear that the wearer felt very comfortable. The eye mask of Example 2 provided an excellent fit and warmth to the wearer's eyes and the area around the eyes, but only moderately good fit and warmth to the wearer's temples, making it clear that the wearer felt moderately comfortable. The eye mask of Example 3 provided an excellent fit to the wearer's eyes, the area around the eyes, and the temples, and also provided moderate warmth to the wearer's eyes, the area around the eyes, and the temples, making it clear that the wearer felt moderately comfortable. It was also clear that there is a correlation between the fit of the eye mask and the thermal effect. In other words, it was clear that the better the fit of the eye mask, the greater the thermal effect that can be obtained.

[0137] DESCRIPTION OF SYMBOLS 1: Eye mask 10: Main body 10A: First panel 10B: Second panel 11: Upper edge 12: Lower edge 13: Side edge 14: Vertical center line 15: Nose insertion section 16: Ear insertion section 20: Heat generating element 21: First sheet 22: Second sheet 23: Base material layer 24: Water retention layer 25: Heat generating layer 30: Inner sheet 40: Outer sheet 50: Measuring device 51: Measuring chamber 52: Inflow channel 53: Outflow channel 54: Inlet thermo-hygrometer 55: Inlet flow meter 56: Outlet thermo-hygrometer 57: Outlet flow meter 58: Thermometer HM: Human head model

Claims

1. An eye mask comprising: a main body portion that covers the wearer's eyes and / or the area around the eyes and temples when worn; a pair of ear attachment portions that can be attached to the wearer's ears; and a heating element provided in the main body portion, wherein the heating element is positioned in the main body portion so as to directly or indirectly face the wearer's eyes and / or the area around the eyes when worn, and the main body portion is configured to be able to conduct heat from the heating element to the wearer's temples.

2. The eye mask according to claim 1, wherein the ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, is provided on the main body, and the distance between the end of one ear insertion portion on the heating element side and the end of the other ear insertion portion on the heating element side is 150 mm or more and 300 mm or less.

3. The eye mask according to claim 1 or 2, wherein the thickness of the main body is 2 mm or more and 30 mm or less.

4. The eye mask according to any one of claims 1 to 3, wherein the main body has an inner sheet that is positioned against the wearer's skin when worn, and an outer sheet that is positioned against the wearer's skin when worn, and the heating element is provided between the inner sheet and the outer sheet.

5. The eye mask according to claim 4, wherein the thickness of the inner sheet is from 1 mm to 20 mm.

6. An eye mask as claimed in any one of claims 1 to 5, wherein the main body portion has a vertical centre line which divides the main body portion in a widthwise direction, a first panel portion which constitutes one side in the widthwise direction of the vertical centre line, and a second panel portion which constitutes the other side in the widthwise direction of the vertical centre line, and the heating element is provided in each of the first panel portion and the second panel portion.

7. The eye mask of claim 6, wherein the ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, and is provided on the first panel portion and the second panel portion, and the distance between the end of the ear insertion portion on the first panel portion opposite the side on which the vertical center line is located and the end of the heating element on the first panel portion facing the ear insertion portion is 20 mm or more and 70 mm or less, and the distance between the end of the ear insertion portion on the second panel portion opposite the side on which the vertical center line is located and the end of the heating element on the second panel portion facing the ear insertion portion is 20 mm or more and 70 mm or less.

8. The eye mask as described in claim 6 or 7, wherein the ear attachment portion is an ear insertion portion through which the wearer's ear can be inserted, and is provided on the first panel portion and the second panel portion, and the distance between the vertical center line and the end of the ear insertion portion on the heating element side is 75 mm or more and 150 mm or less.

9. The eye mask according to any one of claims 6 to 8, wherein the distance between the vertical center line and the end of the heating element provided on the first panel portion on the vertical center line side is 2 mm or more and 40 mm or less, and the distance between the vertical center line and the end of the heating element provided on the second panel portion on the vertical center line side is 2 mm or more and 40 mm or less.

10. An eye mask as described in any one of claims 6 to 9, wherein the area of ​​the first panel portion is between 5% and 50% of the area of ​​the heating element provided in the first panel portion, and the area of ​​the second panel portion is between 5% and 50% of the area of ​​the heating element provided in the second panel portion.

Images