JP2023006787A - Face mask - Google Patents

Abstract

To provide a face mask which is capable of easily housing articles for housing articles.SOLUTION: A face mask 1 includes: a face mask body 2 fitted on a user's face; and at least one of articles 3, 4 provided for the mask body 2. The face mask body 2 is composed of a laminate of at least two of sheets 6 to 8. Between the two adjacent sheets, housing parts 22, 23 for housing the articles 3, 4 and openings 24, 25 for inserting the articles 3, 4 in the housing parts 22, 23 are formed. The articles 3, 4 have lower parts whose shapes are tapered downward that are on a lower side in the direction in which they are inserted in the housing parts 22, 23.SELECTED DRAWING: Figure 4

Description

TECHNICAL FIELD The present invention relates to a mask that can be equipped with articles such as heating elements, aromatic elements, deodorizing elements, and steam generating elements.

Conventionally, a mask has been used that has a storage portion that can store an article such as a steam generator. As a mask of this type, for example, Patent Literature 1 discloses a mask in which a storage portion stores a steam generator (absorbent core) containing water (water retention liquid). The mask of Patent Document 1 includes a mask body that is worn on the user's face, and the mask body is formed by overlapping two sheets of the same shape and size, and removing at least a portion of the upper edges of the two sheets. It has a structure in which the outer edges are joined together. The main body of the mask has a bag-like storage portion formed between two sheets, and the non-joined portion at the upper edges of the two sheets allows the steam generator (absorbent core) to be taken in and out of the storage portion. is considered to be the opening of

JP 2012-205926 A

In the mask of Patent Document 1, in order to accommodate the steam generator in the accommodation portion of the mask body, it is necessary to insert it into the accommodation portion from the lower side. In the mask of Patent Document 1, the lower portion of the steam generator is composed of a horizontal portion, a vertical portion, and an inclined portion, and the inclined portion facilitates accommodation of the steam generator in the accommodation portion. However, in the mask of Patent Document 1, the lower part of the steam generator is located at the corners on both sides of the horizontal part (between the horizontal part and the vertical part, and between the horizontal part and one side edge of the steam generator). Since the mask has right-angled corners, when the steam generator is inserted from the lower part into the housing part of the mask body, the two right-angled corners get caught on the mask body, making it difficult to insert the steam generator into the housing part. there is a point

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mask in which an article can be easily accommodated in an accommodating section for accommodating the article.

TECHNICAL FIELD The present invention relates to a mask provided with a storage section capable of storing articles. The mask of the present invention includes a mask body to be worn on the face of a user, and at least one article equipped on the mask body, and the mask body is composed of a laminate of at least two sheets. A storage portion for storing the articles and an opening for inserting the articles into the storage portion are formed between the two adjacent sheets, and at least one of the articles is inserted into the storage section. It is characterized in that the lower part, which is the lower side in the direction of insertion into the part, has a tapered shape.

Preferably, in the mask of the present invention, the lower part of the article has a curved and tapered shape at least in a portion other than the tip portion.

Further, in the mask of the present invention, it is preferable that the lower part of the article has a tapered shape while curving as a whole.

Further, in the mask of the present invention, preferably, the article has at least one corner portion of 90° or less on the upper side when stored in the storage section. can be done.

Further, in the mask of the present invention, it is preferable that the upper part of the article has a sharp corner.

Further, in the mask of the present invention, preferably, the mask main body is composed of a laminate of three sheets, has two storage portions for storing the article, and has two storage portions. The article is stored separately in each of the storage sections, one of the storage sections stores a steam generator containing a liquid mainly composed of water as the article, and the other storage section stores the article as the article. A heating element for heating the liquid held by the steam generating body to emit steam from the steam generating body is housed therein, and the steam generating body and the heating body are arranged from the user's face side to the steam generating body, It can be configured to be housed in the housing portion of the mask body so as to be positioned in order of the heat generator.

According to the mask of the present invention, an article can be easily accommodated in the accommodation portion for accommodating the article.

FIG. 1 shows a rear view of the mask. FIG. 2 shows a plan view of the mask. FIG. 3 shows a front view of the mask. FIG. 4(A) shows a state in which the mask is folded in half with the width center line as the crease, and FIG. 4(B) is a partially broken view of FIG. 4(A). FIG. 5(A) shows a front view of the steam generator, and FIG. 5(B) is a sectional view taken along line AA of FIG. 5(A). FIG. 6(A) shows a front view of the heating element, and FIG. 6(B) is a cross-sectional view taken along line BB of FIG. 6(A). FIGS. 7A to 7C show modifications of the shape of the lower portion of the article mounted on the mask body. FIGS. 8A to 8C show modifications of the shape of the upper part of the article mounted on the mask body. FIG. 9 is a diagram for explaining how to use the mask.

Description of Overall Configuration of Mask An embodiment of the mask of the present invention will now be described with reference to the accompanying drawings. 1 to 4 show the appearance of the mask 1 of this embodiment. The mask 1 includes a mask body 2 worn on the user's face, a steam generator 3 that supplies steam to the user's mouth and throat, and a heating element 4 that heats the water-containing liquid held by the steam generator 3. and a pair of ear hooks 5 that are hung on the left and right ears of the user to hold the mask body 1 on the face. A pair of ear hooks 5 are provided at the left and right ends of the mask body 2 .

The mask 1 of this embodiment has a humidifying function, and a mask body 2 is equipped with a steam generator 3 holding a liquid containing water and a heat generator 4 capable of generating heat as articles. When the mask 1 is put on, the water contained in the liquid of the steam generating body 3 is heated by the heating element 4 and supplied to the user's mouth and throat, thereby suppressing drying of the mouth and throat.

In the present disclosure, the “left and right” directions refer to directions based on the side of the user wearing the mask 1 . A direction perpendicular to the left-right direction (the vertical direction in FIGS. 1 and 3) is defined as the up-down direction. The length in the horizontal direction is defined as width, and the length in the vertical direction is defined as height.

Description of Mask Body As shown in FIGS. 1 to 4, the mask body 2 is sized to cover at least the mouth of the user's face. In this embodiment, the mask body 2 is sized to cover the under-eye area of the face, particularly the nose and mouth. The mask body 2 has a symmetrical shape about a width center line H located in the center in the left-right direction. The width center line H presents a shape that curves convexly in a direction away from the pair of ear hooks 5 when the mask body 2 is folded in two with the width center line H as the crease (see FIG. 4). . As a result, when the mask body 2 folded in two is spread out and worn on the face, the mask body 2 presents a three-dimensional shape, and the mask body 2 is positioned between the mouth and nostrils and the mask body 2 at the central portion in the left-right direction of the mask body 2. A space is formed in

The upper and lower edges of the mask body 2 are inclined downward and upward, respectively, so that the vertical width gradually narrows from the center in the left-right direction to the outside (to the left and right). The left and right side edges of the mask body 2 are shaped such that the central portion in the vertical direction forms a recessed portion 20, and a pair of protrusions 21 are provided so as to sandwich the recessed portion 20 therebetween. An ear hooking portion 5 is attached so as to connect the pair of protrusions 21 .

The mask body 2 is composed of a laminate of three sheets 6-8. The first sheet 6 is arranged on the outermost side farthest from the user's face, the third sheet 8 is arranged on the innermost side facing the user's face, and the third sheet 8 is arranged between the first sheet 6 and the third sheet 8. Two seats 7 are arranged. That is, the first sheet 6, the second sheet 7, and the third sheet 8 are positioned away from the user's face in this order. Each of the three sheets 6 to 8 is joined by a known method such as gluing, heat sealing, ultrasonic welding, sewing, etc. at the outer peripheral edge of each of the three sheets 6 to 8 except for the upper edge or a part of the upper edge, with a predetermined width. , along the width center line H with a predetermined width from the upper edge to the lower edge, the mask body 2 is formed.

By stacking three sheets 6 to 8 on the mask body 2, bag-like storage sections 22 and 23 capable of storing a flat article are formed between two adjacent sheets. Specifically, a first accommodating portion 22 is formed between the first sheet 6 and the second sheet 7 , and a second accommodating portion 23 is formed between the second sheet 7 and the third sheet 8 . In this embodiment, a pair of left and right first accommodation portions 22 and a pair of left and right second accommodation portions 23 are formed in the mask body 2 with the width center line H interposed therebetween.

The second sheet 7 and the third sheet 8 are formed to have the same shape and size, and their contours form the contours of the mask body 2 . On the other hand, the outermost first sheet 6 is formed in the same shape and size as the second sheet 7 and the third sheet 8 except for a part. A portion of the first sheet 6 extends along the upper edges of the second sheet 7 and the third sheet 8 from the width center line H of the upper edge, while the remaining portion extends along the upper edges of the second sheet 7 and the third sheet 8. The second sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7 and the third sheet 7, respectively, at a point where they incline steeply downward from the upper edge of the second sheet 7 and the third sheet 8, and contact with the substantially central portions in the height direction of the left and right side edges of the second sheet 7 and the third sheet 8. 8 has a different shape.

The upper edges of the second sheet 7 and the third sheet 8 are not joined to each other in a portion from the width center line H, so that the second opening 25 is formed in this non-joined portion. An article to be mounted on the mask body 2 can be taken in and out of the second storage section 23 through the second opening 25 , and the article is taken in and out of the second storage section 23 in the vertical direction through the second opening 25 . In order to store an article in the second container 23, the second opening 25 needs to be widened to open the second container 23, and the user rubs the second sheet 7 and the third sheet 8 against each other using fingers. The second opening 25 can be widened by moving and separating the upper edges thereof.

Since the upper edges of the first sheet 6 and the second sheet 7 are not joined together, a first opening 24 is formed in the non-joined portion. Other articles to be mounted on the mask body 2 can be taken in and out from the first storage section 22 through the first opening 24, and the articles can be stored because the upper edge of the first sheet 6 is steeply inclined downward. , through the first opening portion 24, and is inserted into and removed from the first accommodating portion 22 in an oblique vertical direction. In order to store an article in the first container 22, the first opening 24 needs to be widened to open the first container 22, and the user rubs the first sheet 6 and the second sheet 7 against each other with his or her fingers. The first opening 24 can be widened by moving and separating the upper edges thereof. In the present embodiment, the upper edge of the first sheet 6 is not aligned with the upper edge of the second sheet 7, and is steeper than the upper edge of the second sheet 7. A user can easily hook his or her finger on the upper edge of the sheet 6 . Therefore, the user may hook the finger on the upper edge of the first sheet 6 and move the finger away from the upper edge of the second sheet 7 to widen the first opening 24 .

In this embodiment, a pair of left and right first openings 24 sandwiching the width center line H are formed in the mask body 2 corresponding to the pair of left and right first accommodation portions 22, and the pair of left and right second accommodation portions 24 are formed. A pair of left and right second openings 25 are formed in the mask body 2 so as to correspond to 23 and sandwich the width center line H therebetween.

The heating element 4 is accommodated in the first accommodation portion 22 . On the other hand, the steam generator 3 is accommodated in the second accommodation portion 23 . Therefore, in this embodiment, the steam generating element 3 and the heating element 4 are accommodated in the separate storage portions 22 and 23 of the mask body 2, and are positioned in the order of the steam generating element 3 and the heating element 4 from the user's face side. It is equipped in the mask body 2 so as to do so. Since the steam generator 3 is positioned close to the user's face when the mask 1 is worn, the steam emitted from the steam generator 3 can be well supplied to the user's mouth and throat. Moreover, since the heating element 4 is mounted on the mask body 2 so that the steam generating element 3 is interposed between the mask body 2 and the user's face, the heating element 4 does not come into direct contact with the user's face when the mask 1 is worn. The body 4 does not burn the face or make the user feel uncomfortable.

The mask main body 2 is provided with joints 26 for holding the steam generator 3 and the heating element 4 in the housings 22 and 23 at predetermined positions. The joint portion 26 is formed by linearly joining the three sheets 6 to 8 using a known method such as adhesion, heat sealing, ultrasonic welding, sewing, or the like. The joint portion 26 is not particularly limited, but is composed of a first portion 26A extending in the horizontal direction and a second portion 26B extending in the vertical direction at the end of the outer side of the first portion 26A (the side farther from the width center line H). . The first portion 26A has a curved shape (for example, an arc shape) that is convex downward except for a portion from the end on the second portion 26B side. A portion from the end of the first portion 26A on the side of the second portion 26B and the second portion 26B are linear and form an L shape together. The joining portion 26 allows the steam generating element 3 and the heating element 4 accommodated in the accommodating portions 22 and 23 to move from the positions in which they were initially set in the accommodating portions 22 and 23, or to change their initially set postures. is regulated.

The three sheets 6 to 8 are made of breathable materials, and the mask body 2 as a whole has breathability. In addition, the third sheet 8 is arranged so that the steam emitted from the steam generator 3 in the second housing portion 23 permeates (in other words, passes through) the third sheet 8 and is supplied to the user's mouth and throat. It is formed using a material having moisture permeability. The moisture permeability of the third sheet 8 is not particularly limited as long as the steam emitted from the steam generator 3 can permeate the third sheet 8 . In addition, normally, a sheet having air permeability also has moisture permeability.

The three sheets 6 to 8 are not particularly limited, but sheet-like fibers such as woven fabrics and non-woven fabrics can be used, among which non-woven fabrics can be preferably used. Fiber materials for woven fabrics and non-woven fabrics are not particularly limited, but natural fibers such as paper and cotton; semi-synthetic fibers such as rayon and acetate; synthetic fibers such as polypropylene, polyethylene, polyester (eg polyethylene terephthalate) and nylon; and the like can be exemplified. Among them, polypropylene and polyethylene can be preferably exemplified from the viewpoint of productivity, polypropylene can be preferably exemplified from the viewpoint of shape retention of the mask body 2, and from the viewpoint of the feel of the mask body 2 to the user. can preferably be exemplified by nylon.

When non-woven fabrics are used for the three sheets 6 to 8, spun-bonded non-woven fabrics, melt-blown non-woven fabrics, thermal-bonded non-woven fabrics, spunlaced non-woven fabrics, and the like can be used, although they are not particularly limited. Among them, a spunbond nonwoven fabric can be preferably used from the viewpoint of shape retention of the mask body 2, and a spunbond nonwoven fabric can be preferably used from the viewpoint of the feel of the mask body 2 to the user. - Melt-blown nonwoven fabrics can be preferably used from the viewpoint of cutting performance against viruses and the like. Each of the three sheets 6 to 8 can have a single layer structure or a laminated structure of two or more layers.

Among the three sheets 6 to 8, the outermost first sheet 6 is not particularly limited, but the average surface friction coefficient of the surface on the side facing the first storage part 22 (side facing the adjacent second sheet 7) (MIU) is 0.14 or more, preferably 0.15 or more. The average surface friction coefficient of the surface of the first sheet 6 opposite to the surface facing the first accommodating portion 22 is not particularly limited, but is 0.14 or more, preferably 0.15 or more.

The innermost third sheet 8 is not particularly limited, but has an average surface friction coefficient of 0.14 or more on the side facing the second accommodating portion 23 (the side facing the adjacent second sheet 7), preferably 0.15 or more. The average surface friction coefficient of the surface of the third sheet 8 opposite to the surface facing the second housing portion 23 is not particularly limited, but is 0.14 or more, preferably 0.15 or more.

The intermediate second sheet 7 is not particularly limited, but the average surface friction coefficient of the surface facing the first accommodating portion 22 (the side facing the adjacent first sheet 6) is less than 0.14, preferably 0.14. It is 13 or less, more preferably 0.12 or less. The average surface friction coefficient of the surface of the second sheet 7 facing the second housing portion 23 (the side facing the adjacent third sheet 8) is not particularly limited, but is less than 0.14, preferably 0.13 or less. and more preferably 0.12 or less.

That is, regarding the first sheet 6 and the second sheet 7 forming the first accommodating portion 21, the average surface friction coefficient of the surfaces facing each other is 0.14 or more on the first sheet 6 side and 0.14 on the second sheet 7 side. It is preferably set smaller than 14. In addition, the surface of the first sheet 6 opposite to the surface facing the second sheet 7 preferably has an average surface friction coefficient of 0.14 or more. In addition, regarding the second sheet 7 and the third sheet 8 that form the second storage portion 22, the average surface friction coefficient of the surfaces facing each other is smaller than 0.14 on the second sheet 7 side and 0.14 on the third sheet 8 side. It is preferable to be set as above. In addition, the surface of the third sheet 8 opposite to the surface facing the second sheet 7 preferably has an average surface friction coefficient of 0.14 or more.

The average surface friction coefficient is an index showing the texture of the sheet. be.

Here, when sheets having a large average surface friction coefficient are rubbed against each other, the surfaces of the two sheets facing each other are uneven, so that the sheets are entangled with each other and are difficult to shift. sheets do not separate. On the other hand, according to the knowledge found by the inventor of the present application, the average surface friction coefficient of the two surfaces facing each other for the two sheets 6, 7 and 7, 8 to be rubbed is 0.14 as a boundary, By setting the average surface friction coefficient of one surface to 0.14 or more and the average surface friction coefficient of the other surface to less than 0.14, when the two sheets 6, 7 and 7, 8 are rubbed, The two sheets 6,7 and 7,8 are easily displaced away from each other. Therefore, the openings 24, 25 for inserting articles into the storage sections 22, 23 formed between the two adjacent sheets 6, 7 and 7, 8 can be easily widened.

In addition, when sheets having a small average surface friction coefficient are rubbed against each other, the surfaces of the two sheets against which the user's finger touches (the surfaces of the sheets facing each other and the surfaces opposite to each other) are smooth, causing the sheets to rub against each other. In fact, if the fingers are dry or the like, the fingers tend to slip, and it is difficult to separate the two sheets by rubbing the sheets. On the other hand, with respect to the two sheets 6, 7 and 7, 8 to be rubbed, both surfaces of one of the sheets 6, 8 have an average surface friction coefficient of 0.14 or more, so that the openings 24, 25 are When the user rubs the two sheets 6,7 and 7,8 with his fingers for spreading, the user's fingers are less likely to slip against one of the sheets 6,8. Therefore, the two sheets 6, 7 and 7, 8 can be surely rubbed and shifted so that the two sheets 6, 7 and 7, 8 are separated from each other.

Note that the average surface friction coefficient is the one when the sheet is dry, and refers to the average surface friction coefficient of each of the sheets 6 to 8 in a dry state before steam is generated in the mask body 2 (before use).

The average surface friction coefficient can be measured by the following method. Specifically, test pieces of each sheet 6 to 8 are prepared, and the average surface friction coefficient of the test piece is measured using a surface friction coefficient measuring instrument (KES-FB4-AUTO-A) manufactured by Kato Tech Co., Ltd. do. The size of the test piece is 30 mm long and 370 mm wide, and the measurement conditions are a standard rubbing element (fingerprint type), a friction load of 25 gf/cm ² , and a measurement sensitivity of L (high sensitivity of 100 g/V). Other conditions such as friction distance and friction speed are set according to the device specifications (friction distance 30 mm, analysis distance 20 mm, sample moving speed 1 mm/sec). The average surface friction coefficient is the average value of the friction coefficients of the specimen surface measured over an analytical distance of 20 mm.

In order to satisfy the above-mentioned average surface friction coefficient and fulfill the respective functions of the mask body 2, the outermost first sheet 6 can preferably use an air-through nonwoven fabric from the viewpoint of moisture retention, and the intermediate second sheet A spunbond nonwoven fabric can be preferably used for 7 from the viewpoint of shape retention, and a spunbond nonwoven fabric can be preferably used for the innermost third sheet 8 from the viewpoint of touch and wet feeling.

In this embodiment, the mask main body 2 is composed of three sheets 6 to 8, but it may have a structure in which one or more sheets are laminated.

Description of Overall Structure of Steam Generator Next, as shown in FIGS. is stored in The water bag 9 can be opened and the liquid can flow out, for example, by receiving a pressing force. The steam generator 3 holds the liquid that has flowed out of the water bag 9 and can generate steam by evaporating the water content of the held liquid. It passes through the third sheet 8 and is supplied to the user's mouth and throat. In the present embodiment, the steam generator 3 can hold the liquid that has flowed out of the water bag 9 inside, and the steam generated by the evaporation of the water content of the liquid held inside can permeate to the outside.

Description of Water Bag The water bag 9 is in the form of a closed bag, and contains a liquid containing water as its main component. The material forming the water bag 9 is not particularly limited as long as it is a material that does not allow the sealed liquid such as water to leak out or seep out. can be used. The water impermeability includes water impermeability and water impermeability.

The liquid enclosed in the water bag 9 may be only water, but it is preferable to use water as the main component (for example, 50% or more by weight) and add other components. A polyol can be exemplified as another component. The polyol is not particularly limited, but preferably glycerin, dipropylene glycol, 1,3-butylene glycol, propylene glycol, sorbitol, 1,2 pentanediol, 1,2-hexanediol, etc., and more preferably safe. Glycerin is exemplified in terms of nature. In addition to these, preservatives such as methylparaben and phenoxyethanol; moisturizing agents such as hyaluronic acid salts and betaine; plant extracts; xanthan gum, hydroxypropylmethylcellulose (HPMC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), and agar. , guar gum, water-soluble thickeners such as carrageenan; fragrances such as eucalyptus and mint; surfactants that solubilize fragrances (nonionic surfactants, amphoteric surfactants, anionic surfactants), etc. can be added to water as appropriate.

The amount of liquid enclosed in the water bag 9 is not particularly limited, but it is preferably an amount that can supply a sufficient amount of steam to the user for a long period of time, such as when sleeping, and is preferably 2 g or more, for example. , 4 g or more. On the other hand, from the viewpoint of suppressing deterioration of the feeling of use of the mask 1 due to the weight of the liquid when the mask 1 is worn, the amount of the liquid is preferably 7 g or less, and more preferably 5 g or less. more preferred.

The viscosity of the liquid enclosed in the water bag 9 is not particularly limited. The amount of steam that permeates the steam generator 3 (permeation amount) tends to increase. Therefore, the higher the viscosity of the liquid, the more vapor can be supplied to the user. s or more is more preferable. On the other hand, if the viscosity of the liquid is too high, it may become difficult for the liquid to flow out of the water bag 9 into the steam generator 3 when the water bag 9 is opened. Since the amount tends to decrease, the viscosity of the liquid is preferably 4000 mPa·s or less, more preferably 2500 mPa·s or less.

By setting the viscosity of the liquid to 40 mPa s or more and 4000 mPa s or less, further 1000 mPa s or more and 2500 mPa s or less, further 1500 mPa s or more and 2000 mPa s or less, Sufficiently increase the permeation amount of vapor, that is, the amount per unit time (g/h) that the water content of the liquid in the vapor generator 3 evaporates at 25° C. and radiates from the vapor generator 3 as vapor. , making it possible for the user to feel a large amount of steam when wearing the mask 1 .

When measuring the viscosity of a liquid in the range of less than 1000 mPa·s, SPINDLE No. 1 is measured with a Brookfield viscometer (TV-10 model, manufactured by Toki Sangyo Co., Ltd.). It is measured at 25° C. with a rotation speed of 30 rpm using an M2 rotor. When measuring the range of 1000 mPa · s or more and less than 2500 mPa · s, a Brookfield viscometer (TV-10 type, manufactured by Toki Sangyo Co., Ltd.) is used with SPINDLE No. Measured at 25° C. with a rotation speed of 12 rpm using an M2 rotor. When measuring the range of 2500 mPa·s or more and less than 10000 mPa·s, SPINDLE No. It is measured at 25° C. with a rotation speed of 12 rpm using an M3 rotor. When measuring the range of 10000 mPa·s or more and less than 20000 mPa·s, SPINDLE No. It is measured at 25° C. with a rotation speed of 12 rpm using an M4 rotor.

The water bag 9 has a structure in which it can be opened by receiving a pressing force, and the liquid enclosed inside can flow out to the outside (into the steam generator 3). Here, the pressing force is a force that can apply pressure to the steam generator 3 with the user holding the steam generator 3 containing the water bag 9 with one or both hands. As the above-described structure, for example, an easily breakable line is provided in the water bag 9 so that at least a part of the water bag 9 is torn when subjected to a pressing force, or an outer peripheral edge of the water bag 9 is provided when the water bag 9 is subjected to a pressing force. Various conventionally known structures can be used, such as providing the seal portion 90 with a weak seal strength portion so that at least a portion of the seal portion 90 (shown in FIG. 5B) is damaged by hydraulic pressure.

Detailed Description of Steam Generating Body The outline of the steam generating body 3 is not particularly limited, but is preferably bilaterally symmetrical, and can have various shapes such as square, rectangular, circular, and elliptical. The size of the steam generator 3 is not particularly limited, but the length in the horizontal direction can be 55 mm or more and 80 mm or less, and the length in the vertical direction can be 55 mm or more and 80 mm or less.

The steam generating body 3 is located on the lower side in the direction in which it is inserted into the second housing portion 23 of the mask body 2 through the second opening 25, that is, the lower side when it is housed in the second housing portion 23. is tapered. In the present embodiment, the steam generator 3 is vertically inserted into the second housing portion 23 through the second opening 25 with the vertical direction shown in FIG. The lower edge 33 side is the lower side in the insertion direction. Therefore, both end portions 33A connected to the left and right side edges 34, 35 of the lower edge 33 of the steam generator 3 are arcuate, and thereby the lower portion of the steam generator 3 is tapered. The tip portion of the lower portion of the steam generating body 3, that is, the portion between both end portions 33A of the lower edge of the steam generating body 3 has a horizontal straight shape. The circular arc shape of both end portions 33A of the lower edge 33 of the steam generating body 3 described above is, for example, a large curved shape with a radius of curvature of 18 mm or more, and is different from a slightly rounded shape simply by chamfering the corners.

In order to taper the lower portion of the steam generating body 3, it is not limited to the example shown in FIG. 5A. For example, as shown in FIGS. 33A or one of the end portions 33A may be linearly inclined to form a trapezoidal shape in which the lower portion of the steam generating body 3 protrudes downward.

Alternatively, as shown in FIG. 7C, the lower edge 33 of the steam generator 3 may be tapered as a whole, including the tip portion, so that the lower portion of the steam generator 3 is tapered. In this case, for example, as shown in FIG. 7C, the lower edge 33 of the steam generator 3 may be V-shaped, for example, and the lower part of the steam generator 3 may be formed in a triangular shape projecting downward. In (B), instead of linearly inclining only one end portion 33A of the lower edge 33 of the steam generator 3, the entire lower edge 33 is linearly inclined so that the steam generator 3 may be formed in a triangular shape projecting downward. Alternatively, the lower edge 33 of the steam generator 3 may be, for example, arcuate or elliptical, and the lower portion of the steam generator 3 may be formed in a semicircular or semielliptical shape protruding downward. When the lower part of the steam generating body 3 has a triangular shape protruding downward, for example, as shown in FIG. However, although illustration is omitted, the tip portion may not be chamfered.

Since the lower part of the steam generating body 3 is tapered, the lower part of the steam generating body 3 is less likely to get caught on the mask body 2 when the steam generating body 3 is inserted from the bottom into the second housing portion 23 of the mask body 2, and the steam generating body 3 can be easily inserted into the second housing portion 23. In order to facilitate the insertion of the steam generating body 3 into the second housing portion 23, the tip portion of the lower portion of the steam generating body 3 should be smooth without corners as shown in FIG. 5 and FIG. 7(C). preferable. The left and right side edges 33 and 34 of the steam generating body 3 connect the upper edge 36 and the lower edge 33 without forming a right angle or an acute angle directed obliquely downward.

The steam generator 3 is inserted into and removed from the second housing portion 23 of the mask body 2 along the vertical direction. As shown in FIG. 4A, the axis P1, which is the axis of the symmetrical shape, faces the vertical direction. At this time, since the first portion 26A of the joint portion 26 of the mask body 2 exhibits a curved shape (for example, an arc shape) in which the first portion 26A is curved downward, the lower portion of the steam generator 3 is formed as shown in FIGS. is tapered while curving, it is easy to fit in the first portion 26A of the joint portion 26, and when the steam generating body 3 is housed in the second housing portion 23, it is set vertically in the second housing portion 23. easier to do. In addition, since the steam generator 3 accommodated in the second accommodation portion 23 is positioned between the width center line H of the mask body 2 and the second portion 26B of the joint portion 26, the steam generator 3 is positioned from the initially set position. Movement is restricted.

The upper part of the steam generating body 3, which is the upper side when housed in the second housing part 23 of the mask body 2, has at least one corner of 90° or less. In this embodiment, as shown in FIG. 5A, left and right side edges 34 and 35 hang down from both ends of the upper edge 36 of the steam generator 3, so that the upper portion of the steam generator 3 is rectangular. , and the corners 37 and 38 at the left and right corners of the upper portion of the steam generator 3 form a right angle.

The upper portion of the steam generating body 3 has at least one corner portion of 90° or less because the left and right corner portions 37 and 38 are acute angles as shown in FIGS. 8(A) and (B). good too. For example, in FIG. 8A, the upper edge of the steam generator 3 extends horizontally in the left-right direction, and the left and right side edges 34, 35 extend inwardly from both ends of the upper edge 36 of the steam generator 3. As a result, the left and right corners 37 and 38 of the upper portion of the steam generator 3 form acute angles. For example, in FIG. 8B, the upper edge 36 connecting the left and right side edges 34 and 35 of the steam generating body 3 parallel to each other forms a V shape, an arc shape, an elliptical arc shape, or the like projecting downward to generate steam. Right and left corners 37 and 38 of the upper portion of the generator 3 form an acute angle.

The upper part of the steam generating body 3 does not have to have both right and left corners 37 and 38 with right angles or acute angles, and as shown in FIG. acute angle), the corner 37 of the other corner may be obtuse. Although not shown, one of the upper left and right corners of the steam generating body 3 may have a right angle and the other corner may have an acute angle.

The left and right corners 37 and 38 of the upper portion of the steam generator 3 do not necessarily have to be 90° or less. For example, as shown in FIG. By forming a protruding V shape, the upper edge 36 of the steam generator 3 may have a corner 39 of 90° or less.

Since the upper portion of the steam generating body 3 has at least one corner portion 37 to 39 of 90° or less, for example, in FIG. The upper corners 37 and 38 of the body 3 are caught by the mask body 2 , making it difficult for the steam generating body 3 to escape from the second housing portion 23 . Note that the corners 37 to 39 of 90° or less at the upper portion of the steam generator 3 do not necessarily have sharp points, and may be slightly rounded by chamfering the points.

The steam generating body 3 suppresses or prevents the liquid from leaking out of the steam generating body 3 in a state in which the water flows out from the water bag 9, and receives heat from the heating element 4 to evaporate the water content of the liquid. The structure allows the vapor generated by the process to permeate to the outside. In this embodiment, as shown in FIG. 5B, the steam generator 3 is formed using a main sheet 30 that is impermeable to water and has moisture permeability and air permeability. The main sheet 30 has a function of preventing permeation of the liquid that has flowed out into the steam generator 3, and a function of allowing vapor generated by evaporation of water contained in the liquid in the steam generator 3 to permeate to the outside. It is a sheet (including film).

As the main sheet 30, for example, a liquid-impermeable resin film or a liquid-impermeable nonwoven fabric can be used. The resin film used for the main sheet 30 may be a porous film having many fine pores or a non-porous film as long as liquid impermeability, moisture permeability and air permeability are obtained. When using a porous film, the moisture permeability can be controlled by adjusting the size of the pores. Examples of the resin material for the porous film include polyethylene, polypropylene, polyurethane and the like. The resin film may be made of a fluorinated resin film, a polyurethane film, or the like. Examples of the resin material for the nonporous film include urethane-based thermoplastic elastomers, polyethylene-based thermoplastic elastomers, and the like. As the above-mentioned resin film, conventionally known moisture-permeable waterproof sheets used for the back sheets of sanitary materials such as diapers, base materials for highly functional protective clothing, and the like can be used.

Nonwoven fabrics used for the main sheet 30 include, for example, SMS nonwoven fabrics, SMMS nonwoven fabrics (four-layer structure of spunbond nonwoven fabrics/meltblown nonwoven fabrics/meltblown nonwoven fabrics/spunbond nonwoven fabrics), SMMMS nonwoven fabrics (spunbond nonwoven fabrics/meltblown nonwoven fabrics/meltblown nonwoven fabrics/meltblown nonwoven fabrics/ In addition to a liquid-impermeable nonwoven fabric such as a five-layer structure of a spunbond nonwoven fabric, a spunbond nonwoven fabric or a pointbond nonwoven fabric laminated with a resin film can also be used. When nonwoven fabric is used, the moisture permeability can be controlled by adjusting the mesh size.

For the main sheet 30, the resin film or nonwoven fabric described above may be used alone, or a laminate of two or more thereof may be used.

In this embodiment, the steam generator 3 is formed using a surface sheet 31 and a lining sheet 32 which are both moisture-permeable and air-permeable. The outside (opposite side of the water bag 9) and the inside (side of the water bag 9) of the main sheet 30 are reinforced with the outer sheet 31 and the lining sheet 32, so that the water pressure resistance and strength of the steam generator 3 can be improved. be.

For the outer sheet 31 and the lining sheet 32, for example, sheet-like fibers such as woven fabric and non-woven fabric can be used, and among these, non-woven fabric can be preferably used. Fiber materials for woven fabrics and non-woven fabrics include natural fibers such as paper and cotton; semi-synthetic fibers such as rayon and acetate; synthetic fibers such as polypropylene, polyethylene, polyester (e.g. polyethylene terephthalate) and nylon; can be exemplified. The lining sheet 32 is a sheet that comes into contact with the liquid flowing out of the water bag 9, and is preferably relatively hard and hard to tear so that the main sheet 30 can withstand the pressure of the water when the water flows out of the water bag 9. In that respect, it is preferable to use polypropylene as the material. On the other hand, the outer sheet 31 is a sheet that protects the main sheet 30 from the outside and forms the exterior of the steam generator 3. It is preferable that the surface sheet 31 has a good feel to the user, and in that respect, it is preferable to use nylon as a material. .

When a nonwoven fabric is used for the outer sheet 31 and the lining sheet 32, for example, a spunbonded nonwoven fabric, a meltblown nonwoven fabric, a thermal bonded nonwoven fabric, a spunlaced nonwoven fabric, or the like can be used. Among them, a spunbond nonwoven fabric can be preferably used for the lining sheet 32 from the viewpoint of water pressure resistance, and a spunbond nonwoven fabric can be preferably used for the outer sheet 31 from the viewpoint of strength.

The steam generating body 3 is composed of two lining sheets 32, two main sheets 30 arranged outside each of the lining sheets 32, and two outer sheets 31 arranged outside each of the main sheets 30. Sheets of the same shape and the same size are superimposed, and the outer peripheral edges are joined at a predetermined width using a known method such as adhesion, heat sealing, ultrasonic welding, sewing, etc., to form a bag. be done. In addition, a laminated sheet is prepared in advance by integrating the lining sheet 32, the main sheet 30, and the outer sheet 31 of the same shape and size, and the two laminated sheets are superimposed, and the outer peripheral edges are bonded, for example, with a predetermined width. The steam generating body 3 may be formed into a bag shape by bonding using a known method such as heat sealing, ultrasonic welding, sewing, or the like.

The width of the seal portion 39 at the outer peripheral edge of the steam generating body 3 is not particularly limited, but is 1 mm or more and 10 mm or less. Although the sealing strength of the sealing portion 39 is not particularly limited, the sealing strength is set so that the sealing portion 39 is not damaged by the pressure of the liquid when the liquid flows out from the water bag 9 and the liquid leaks out of the steam generator 3 . is preferably set. For example, the seal strength of the seal portion 39 preferably has a lower limit of 3 N/15 mm width or more and an upper limit of 30 N/15 mm width or less.

The steam generator 3 has a moisture permeability that allows the steam generated inside to permeate to the outside, and the moisture permeability of the steam generator 3 is not particularly limited. When the moisture permeability of the vapor generating body 3 increases, the amount of vapor (permeation amount) generated by the evaporation of the water contained in the liquid in the vapor generating body 3 and permeating the vapor generating body 3 tends to increase. Therefore, the higher the moisture permeability of the steam generator ³ , the ^more sufficient steam can be supplied to the user. It is preferably 10000 g/m ² ·day or more, and more preferably 10000 g/m 2 ·day or more. The definition of moisture permeability (water vapor permeability) conforms to JIS Z 0208.

By setting the moisture permeability of the steam generator 3 to 7000 g/m ² ·day or more, further 8500 g/m ² ·day or more, further 10000 g/m ² ·day or more, per unit time permeating the steam generator 3 The permeation amount of vapor, that is, the amount per unit time (g/h) of the water content of the liquid in the vapor generator 3 evaporating at 25° C. and emitted from the vapor generator 3 as vapor is sufficiently increased. Therefore, it is possible to make the user feel a large amount of steam when wearing the mask 1 .

The amount of permeation of steam per unit time through the steam generator 3 is determined based on the moisture permeability of the steam generator 3 and the viscosity of the liquid that evaporates in the steam generator 3. By appropriately setting the humidity and the viscosity of the liquid within a predetermined range, the permeation amount of vapor permeating the vapor generating body 3 is not particularly limited, but is 0.5 g/h or more, preferably 0.6 g/h or more, More preferably, it can be 0.7 g/h or more. Conventionally, a mask with a humidifying function (for example, Kobayashi Pharmaceutical Co., Ltd. "Nodonuru Nure Mask") has been known, and this mask with a humidifying function has a filter containing a liquid stored in the storage part. It is a structure in which the water contained in the filter becomes steam when breathing and is supplied to the mouth and throat. Compared to the amount of steam generated per unit time from the filter of a conventional mask with a humidifying function, the mask 1 of the present embodiment generates a large amount of steam that is 1.5 times or more, or even 2 times or more. 3 can be delivered to the user's mouth or throat. The amount of vapor permeation through the vapor generating body 3 is not particularly limited, but if it is too large, the user's face may get wet with the vapor when wearing the mask 1 and the user may feel uncomfortable. It is preferably 05 g/h or less, more preferably 0.8 g/h or less.

1, 3, 4 and 6, the heating element 4 is in the form of a sealed flat bag with a thin thickness, and contains a heating material. 40 is enclosed. In the heat generator 4, the heat generating material 40 spontaneously generates heat, and the heat is applied to the steam generator 3, thereby facilitating the evaporation of moisture contained in the liquid in the steam generator 3.

Description of Exothermic Material As the exothermic material 40 enclosed inside the exothermic body 4, in the present embodiment, a exothermic composition that generates heat upon contact with oxygen in the air is used. The exothermic composition may be any composition that generates heat upon contact with oxygen, and contains, for example, an oxidizable metal, an oxidation accelerator, a water retention agent, water-soluble salts and water.

The oxidizable metal powder is not particularly limited as long as it is a metal powder that generates heat by being oxidized. be done. Examples of the iron powder include, but are not limited to, reduced iron powder, cast iron powder, atomized iron powder, electrolytic iron powder, and the like. These may be used individually by 1 type, and may be used in combination of 2 or more type.

The oxidation accelerator is used for the purpose of promoting the supply of oxygen to the oxidizable metal powder by taking in air (oxygen). The pro-oxidant is not particularly limited, but examples thereof include activated carbon, coal, charcoal, bamboo charcoal, graphite, carbon black, graphite, acetylene black, coffee grounds charcoal, etc., preferably activated carbon, carbon black, bamboo charcoal, charcoal, and coffee grounds. Charcoal and the like are exemplified. These may be used individually by 1 type, and may be used in combination of 2 or more type.

The water retention agent is not particularly limited, and examples thereof include porous substances and water-absorbing resins. More specifically, natural or synthetic water retention agents such as vermiculite, perlite, calcium silicate, aluminum silicate, kaolin, talc, smectite, mica, bentonite, calcium carbonate, silica gel, alumina, zeolite, silicon dioxide, and diatomaceous earth. pulp, wood flour (sawdust), cotton, polyacrylate-based resin, polysulfonate-based resin, maleic anhydride-based resin, polyacrylamide-based resin, polyvinyl alcohol-based resin, polyethylene oxide-based resin, polyasparagine Examples include natural or synthetic organic substances such as acid salt resins, polyglutamate resins, polyalginate resins, starches, celluloses, and the like. As the water retention agent, vermiculite, perlite, silica gel, diatomaceous earth, aluminum oxide, wood flour (sawdust), polyacrylic acid salt resin and the like are preferably exemplified. These may be used individually by 1 type, and may be used in combination of 2 or more type.

Water-soluble salts are not particularly limited, but include chloride salts and sulfide salts of alkali metals such as sodium and potassium, chloride salts and sulfide salts of alkaline earth metals such as calcium and magnesium, iron, copper, aluminum, Examples include chloride salts and sulfide salts of metals such as zinc, nickel, silver and barium. Examples of water-soluble salts are preferably sodium chloride, potassium chloride, and the like. These may be used individually by 1 type, and may be used in combination of 2 or more type.

Water is not particularly limited, but examples include distilled water, tap water, ion-exchanged water, pure water, ultrapure water, industrial water, and the like. These may be used individually by 1 type, and may be used in combination of 2 or more type.

The exothermic material 40 may further contain any other component as needed. As the heat-generating material 40 described above, a known heat-generating composition conventionally used in disposable body warmers can be used. Note that the heat-generating material 40 may be a material other than a heat-generating composition that generates heat upon contact with air. ) may be used.

Detailed Description of Heating Element The outer shape of the heating element 4 is not particularly limited, but is preferably bilaterally symmetrical, and can have various shapes such as square, rectangle, circle, and ellipse. Although the size of the heating element 4 is not particularly limited, it is preferable that at least the size of the heating portion is the same as or smaller than the size of the steam generating element 3 . That is, the heating element 4 is sized so that its heat generating portion is covered with the steam generating element 3, and the outline of the heat generating portion of the heating element 4 fits inside the outline of the steam generating element 3 in plan view. Therefore, it is preferable that the heat generating portion of the heating element 4 does not protrude around the steam generating element 3 . The heat-generating portion of the heat-generating body 4 is the portion where the heat-generating material 40 is enclosed, that is, the portion other than the sealing portion 49 where the outer peripheries of the outer sheet 41 and the inner sheet 42 are joined to each other, which will be described later. becomes. Since the heat generating portion of the heating element 4 is a portion that heats the steam generating element 3, it is preferably close to the same size as the steam generating element 3. viewing area). Note that the heat generating portion of the heating element 4 may be slightly larger than the steam generating element 3 .

As with the steam generator 3, the heating element 4 is located below the mask body 2 in the direction of insertion through the first opening 24 into the first housing portion 22, that is, is housed in the first housing portion 22. The lower part, which is the lower side, is formed so as to taper. In the present embodiment, the heating element 4 is inserted obliquely into the first accommodating portion 22 through the first opening 24 with the vertical direction shown in FIG. The lower edge 43 side is the lower side in the insertion direction. Therefore, the lower edge 43 of the heating element 4 is arcuate (or elliptical), and the lower part of the heating element 4 protrudes downward in a semi-circular (semi-elliptical) shape. The lower part of 4 has a tapered shape.

In order to taper the lower portion of the heat generating element 4, the lower edge 43 of the heat generating element 4 is not limited to the example shown in FIG. 6A. For example, as shown in FIG. The lower portion of the heating element 4 may be formed in a triangular shape protruding downward. Further, the lower edge 43 of the heating element 4 may not be tapered as a whole, but may be partially tapered. , both end portions 43A connected to the left and right side edges 44 and 45 of the lower edge 43 of the heating element 4 are formed in an arc shape or obliquely inclined linear shape, and the portion between the end portions 33A (of the heating element 4 The lower portion of the heating element 4 may be formed into a tapered shape by forming the tip portion of the lower portion into a horizontal straight shape.

Since the lower portion of the heating element 4 is tapered, the lower portion of the heating element 4 is less likely to be caught by the mask body 2 when the heating element 4 is inserted from the lower side into the first accommodating portion 22 of the mask body 2, and the heating element 4 can be placed in the first position. It becomes easy to insert into the accommodating part 22. - 特許庁In order to facilitate the insertion of the heating element 4 into the first accommodating portion 22, it is preferable that the tip portion of the lower portion of the heating element 4 be smooth without corners as shown in FIGS. 6 and 7(C). The left and right side edges 43 and 44 of the heating element 4 connect the upper edge 46 and the lower edge 43 without forming a right angle or an acute angle directed obliquely downward.

The heating element 4 is inserted into and removed from the first housing portion 22 of the mask body 2 along the diagonal vertical direction. The main body 2 is inclined toward the lower end of the width center line H), and as shown in FIG. That is, the axis P2 is inclined with respect to the vertical direction so as to fall toward the ear hook portion 5 at the left-right end of the mask body 2 . At this time, since the first portion 26A of the joint portion 26 of the mask body 2 has a curved shape (for example, an arc shape) in which the first portion 26A is curved downward, the heating element 4 is placed in the first direction as shown in FIGS. When housing in the housing portion 22, the heating element 4 can be easily inserted into the first housing portion 22 to the depth in the diagonally downward direction. Further, since the lower portion of the heating element 4 is curved and tapered, a portion of the lower portion of the heating element 4 fits into the first portion 26A of the joint portion 26 and is accommodated in the first accommodation portion 22 in an inclined state. The heat generating element 4 thus set is restricted from changing its initially set posture. Furthermore, since the heating element 4 accommodated in the first accommodating portion 22 in an inclined state is supported from below by the side edge (recessed portion 20) of the mask body 2 and/or the second portion 26B of the joint portion 26, It is regulated to change the posture set to.

As with the steam generator 3 , the upper portion of the heating element 4 , which is obliquely upward when housed in the first housing portion 22 of the mask body 2 , has at least one corner of 90° or less. In this embodiment, as shown in FIG. 6A, left and right side edges 44 and 45 hang down from both ends of an upper edge 46 of the heating element 4, so that the upper portion of the heating element 4 has a rectangular shape. The corners 47 and 48 at the left and right corners of the upper portion of the heating element 4 form a right angle.

The upper part of the heating element 4 has at least one corner of 90° or less because the left and right corners 47 and 48 are sharp as shown in FIGS. 8A and 8B. good. For example, in FIG. 8A, the upper edge of the heating element 4 extends horizontally in the horizontal direction, and the left and right side edges 44 and 45 extend inwardly from both ends of the upper edge 46 of the heating element 4. , the left and right corners 47 and 48 of the upper portion of the heating element 4 form an acute angle. For example, in FIG. 8B, the upper edge 46 connecting the left and right side edges 44 and 45 of the heat generating element 4 which are parallel to each other forms a V shape, an arc shape, an elliptical arc shape, or the like projecting downward to form a heat generating element. Corners 47 and 48 on the left and right corners of the upper part of 4 form acute angles.

The upper part of the heating element 4 does not have to have right and left corners 47 and 48 which are both right angles or acute angles, and as shown in FIG. ), the other corner 47 may be obtuse. Although not shown, one of the upper left and right corners of the heating element 4 may have a right angle and the other corner may have an acute angle.

The left and right corners 47 and 48 of the upper portion of the heating element 4 do not necessarily have to be 90° or less. For example, as shown in FIG. By forming the V shape, the upper edge 46 of the heating element 4 may have a corner portion 49 of 90° or less.

The corners 47 to 49 of 90° or less at the upper portion of the heating element 4 do not necessarily have to be sharp, but may be chamfered to be slightly rounded. Since the upper portion of the heating element 4 has at least one corner portion 47 to 49 of 90° or less, for example, in FIG. Since the corners 47 and 48 of the upper part are caught on the mask body 2 , the heating element 4 becomes difficult to slip out of the first accommodating part 22 .

The heat generating element 4 is composed of an outer sheet 41 and an inner sheet 42 which form the main surfaces of the front and back. The outer sheet 41 and the inner sheet 42 having the same shape and the same size are stacked, and the outer peripheral edge of the heat generating element 4 is formed to have a predetermined width over the entire circumference. It is formed into a bag shape by joining with. Examples of methods for joining the outer sheet 41 and the inner sheet 42 include adhesion, heat welding, ultrasonic welding, and stitching. The thicknesses of the outer sheet 41 and the inner sheet 42 are not particularly limited as long as they can be used as the heating element 4 . The heating element 4 is housed in the first housing portion 22 of the mask body 2 with the outer sheet 41 facing the outermost first sheet 6 of the mask body 2 .

Although the outer sheet 41 and the inner sheet 42 are not particularly limited, sheet-like fibers such as resin films and woven fabrics and non-woven fabrics can be used. Among them, it is preferable to use a resin film in consideration of the strength of the heating element 4 and the durability against heat generation of the heat generating material 40 . Although the resin used for the resin film is not particularly limited, it is preferable to use a thermoplastic resin. Examples of thermoplastic resins include polyethylene, polypropylene, polyester, polyamide, polyurethane, polystyrene, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polycarbonate, ethylene-vinyl acetate copolymer, and the like. , polypropylene, and ethylene-vinyl acetate copolymer can be preferably exemplified. These resins may be used alone or in combination of two or more.

The outer sheet 41 and the inner sheet 42 may be composed of a laminate obtained by laminating a breathable woven fabric or non-woven fabric on a resin film. In this case, the resin film is arranged on the inner side of the heating material 40, and the woven fabric or non-woven fabric is arranged on the outer side. Also, the outer sheet 41 and the inner sheet 42 may be made of woven fabric or non-woven fabric without using a resin film.

Fiber materials for woven fabrics and non-woven fabrics include natural fibers such as cotton, hemp, silk, and paper; semi-synthetic fibers such as rayon and acetate; nylon, vinylon, polyester, acrylic, polyethylene, polypropylene, polyvinyl chloride, and polybutylene terephthalate. synthetic fibers such as; and mixed fibers of these fibers. These fibrous materials may be used alone or in combination of two or more. The basis weight of the woven fabric or non-woven fabric is not particularly limited as long as it can prevent the heat generating material 40 from leaking out of the heat generating body 4 .

The outer sheet 41 has air permeability. The resin film used for the air-permeable outer sheet 41 has at least a portion of micropores for ensuring air-permeability. The size of the fine holes is not particularly limited as long as air can pass through the fine holes and the heat generating material 40 can be prevented from passing through and leaking to the outside of the heat generating body 4, and the shape and number of the fine holes are not particularly limited. etc. is not particularly limited. A resin film having micropores is conventionally known, and examples thereof include a resin film having a large number of perforations, a porous film, and the like. The micropores may be present all over the resin film, or may be densely present in a part of the resin film. Since the outer sheet 41 faces the outermost first sheet 6 of the mask body 2 when the heating element 4 is accommodated in the first accommodation portion 22 of the mask body 2, the outer sheet 41 must have air permeability. Therefore, the heating element 4 can take in air efficiently, and the heat generating material 40 can generate heat satisfactorily.

The inner sheet 42 facing the second sheet 7 in the middle of the mask body 2 when the heating element 4 is housed in the first housing portion 22 of the mask body 2 may be breathable or non-breathable. It may be breathable, but is preferably non-breathable.

The inner sheet 42 is not particularly limited, but at least the outer surface (the first main surface of the heating element 4) of the mask body 2 facing the second sheet 7 has an average surface friction coefficient of less than 0.14, preferably 0.14. It is 13 or less, more preferably 0.12 or less. If the average surface friction coefficient of the inner sheet 42 is small, the outer surface of the inner sheet 42 (the first Since the main surface) is smooth and dry, even if the inner sheet 42 of the heating element 4 contacts and rubs against the second sheet 7 constituting the first housing part 22, the heating element 4 is slippery. The heating element 4 can be easily inserted deep into the first housing portion 22 . In the present embodiment, the second sheet 7 of the mask body 2 also has an average surface friction coefficient of less than 0.14 on the side facing the first housing portion 22, and the second sheet 7 is also dry and smooth. , the heating element 4 can be more easily inserted deep into the first accommodating part 22. - 特許庁

By making the inner sheet 42 air-impermeable, the average surface friction coefficient can be favorably made smaller than 0.14. When a resin film is used, the non-breathable inner sheet 42 has no or few micropores in the resin film, and when a non-woven fabric or the like is used, the non-woven fabric or the like is pressed to close the pores, so it has breathability. This is because the surface becomes smoother than the case.

On the other hand, regarding the outer sheet 41, the average surface friction coefficient of the outer surface (the second main surface of the heating element 4) facing the first sheet 6 of the mask body 2 is not particularly limited, but is preferably 0.14 or more. It is preferably 0.15 or more, and more preferably 0.15 or more. If the average surface friction coefficient of the outer sheet 41 is large, the outer surface of the outer sheet 41 (the second main surface of the heating element 4) is uneven and not smooth. When the outer sheet 41 of the heat generating element 4 abuts against and rubs against the heat generating element 4, the heat generating element 4 does not slip easily, and the heat generating element 4 housed in the first housing portion 22 is prevented from slipping out of the first housing portion 22. can. In the present embodiment, the surface of the first sheet 6 of the mask body 2 facing the first housing portion 22 has an average surface friction coefficient of 0.14 or more, and the first sheet 6 is also uneven and not smooth. , the outer sheet 41 and the first sheet 6 are entangled and difficult to move, and the heat generating element 4 can be made more difficult to slip out of the first housing portion 22.例文帳に追加

Note that the average surface friction coefficient is the one when the sheets are dry, and refers to the average surface friction coefficient of the sheets 41 and 42 in a dry state before steam is generated in the mask body 2 (before use). The average surface friction coefficient can be measured in the same manner as the measurement of the average surface friction coefficient of each of the sheets 6 to 8 of the mask body 2.

The heat generating property of the heating element 4 is not particularly limited. From the viewpoint of suppressing burns to the user while maintaining the temperature, the temperature is preferably 30° C. or higher and 70° C. or lower, and more preferably 40° C. or higher and 55° C. or lower. In addition, in order to continuously and sufficiently evaporate the water content of the liquid in the steam generator 3 and keep the temperature of the space between the user's face inside the mask body 2 continuously at a suitable temperature, the heat generation temperature is more than 40° C., preferably 30 minutes or longer, more preferably 80 minutes or longer.

Description of Positional Relationship of Two Items Two items mounted on the mask body 2, that is, the steam generating element 3 and the heating element 4, are, as shown in FIG. In the state of being accommodated in each of the accommodation units 23, both parts protrude around the other article, and the centroid (center of gravity position) of one of the articles is closer to the edge than the center of gravity (center of gravity position) of the other article. It is preferable that the position is shifted toward the hanging portion 5 .

Specifically, first, the steam generating element 3 in the second housing portion 23 and the heat generating element 4 in the first housing portion 22 are not completely overlapped with each other (without one completely covering the other). protrudes around the steam generating body 3 and part of the steam generating body 3 protrudes around the heating element 4 . When the steam generating element 3 in the second housing portion 23 and the heat generating element 4 in the first housing portion 22 are completely overlapped, the thickness of the mask body 2 increases in the wide portion where the steam generating element 3 and the heat generating element 4 overlap. The face of the user wearing the mask 1 may feel oppressive. On the other hand, since the steam generating element 3 in the second housing portion 23 and the heating element 4 in the first housing portion 22 are misaligned and do not overlap completely, the mask main body 2 can be The area of the part where the heating element 4 overlaps and the thickness increases is reduced. Therefore, it is possible to prevent the face of the user wearing the mask 1 from feeling oppressive.

Further, the centroid O1 of the steam generating element 3 in the second housing portion 23 and the centroid O2 of the heating element 4 in the first housing portion 22 are not located on the same straight line parallel to the vertical direction, In this embodiment, the centroid O1 of the steam generator 3 is displaced toward the ear hook portion 5 from the centroid O2 of the heating element 4 . If the centroid O1 of the steam generating element 3 in the second housing portion 23 and the centroid O2 of the heating element 4 in the first housing portion 22 are not displaced in the left-right direction, the mask body 2 is equipped with two The centroids O1 and O2 of the article (steam generating element 3 and heating element 4) are biased, the load of the article is locally applied to the mask body 2, and the ear hook 5 is pulled, causing the user wearing the mask 1 to May cause ear pain. On the other hand, the centroid O1 of the steam generating element 3 in the second housing portion 23 and the centroid O2 of the heating element 4 in the first housing portion 22 are displaced in the left-right direction. By being closer to the ear hooking part 5, it is possible to suppress the load of the article from being unevenly applied to a part of the mask body 2.例文帳に追加Therefore, it is possible to suppress pain in the ears of the user wearing the mask 1 .

In the present embodiment, as described above, the steam generator 3 is vertically accommodated in the first accommodating portion 22 so that the axis P1 faces the vertical direction, while the heating element 4 is arranged such that the axis P2 faces the vertical direction (axis P1) so as to be accommodated in the second accommodation portion 23 in an oblique direction, the position of the steam generating body 4 is shifted in the circumferential direction with respect to the steam generating body 3, and the steam generating body 3 in the second accommodation portion 23 is moved. Also, by regulating the change in the initially set position and posture of the heating element 4 in the first housing part 22 by the joint part 26 of the mask body 2, etc., the above-described steam generating element 3 and heating element 4 It realizes the positional relationship of

Description of Ear Hooks Next, as shown in FIGS. 1 to 4, a pair of ear hooks 5 are for holding the mask body 2 on the user's face, and can be hooked on the left and right ears of the user. can be done. The ear hooking part 5 has a string-like or band-like shape, and can be attached to the mask body 2 using a known method such as adhesion, heat sealing, ultrasonic welding, sewing, or the like. The ear hook 5 is not particularly limited, but is preferably made of a stretchable material such as polyester. As a means for holding the mask body 2 on the user's face, various means other than the ear hooks 5 may be used. The left and right ends of the mask body 2 may be attached to the user's face via the adhesive layer, or holes for inserting the ears may be formed in the left and right ends of the mask body 2 and the ears may be inserted through the holes. The left and right ends of the mask body 2 may be hooked to the left and right ears of the user.

How to use the mask In the mask 1 of this embodiment described above, as shown in FIG. In this state, the user presses the steam generator 3 from above the mask body 2 by hand to open the water bag 9 in the steam generator 3 and allow the liquid to flow out from the water bag 9 into the steam generator 3. Let Then, when the user wears the mask 1 on the face, the liquid in the steam generator 3 is heated by the heating element 4 to efficiently evaporate the water content, and the generated steam permeates the steam generator 3. , is fed to the user's mouth or throat. This makes it possible to locally moisten the user's mouth and throat to prevent the mouth and throat from drying out.

Function and Effect of Mask According to the mask 1 of the present embodiment described above, the article (steam generating element 3 and heating element 4) accommodated in the respective accommodating portions 22 and 23 of the mask body 2 is tapered at its lower portion. . As a result, when the articles (steam generator 3 and heat generating element 4) are inserted into the housing portions 22 and 23 of the mask body 2 from below, the lower parts of the articles (steam generator 3 and heat generating element 4) are inserted into the mask body. It becomes difficult to get caught in 2. Therefore, the articles (the steam generator 3 and the heat generator 4) can be easily inserted into the housing portions 22 and 23 of the mask body 2, respectively.

Further, according to the mask 1 of the present embodiment, the articles (steam generator 3 and heating element 4) accommodated in the respective accommodating portions 22 and 23 of the mask body 2 have corner portions 37 to 39, 47-49. As a result, for example, as shown in FIG. ) are caught by the mask body 2, it is possible to make it difficult for the articles (steam generating element 3 and heating element 4) to slip out of the respective accommodating portions 22 and 23 of the mask body 2. can.

Further, according to the mask 1 of the present embodiment, the exothermic body 4 housed in the first housing portion 22 has its air-permeable second main surface (outer sheet 41) facing the first sheet 6 of the mask body 2. , and the first sheet 6 is located on the outermost side away from the user's face. Therefore, the heating element 4 can efficiently take in air, and the heating material 40 can generate heat satisfactorily.

Further, according to the mask 1 of this embodiment, the user only needs to store the steam generating body 3 and the heat generating body 4 in the housing portions 22 and 23 of the main body 2 and press the steam generating body 3 before wearing it on the face. This saves time and effort, and reduces the possibility that the user's hands will get dirty with water or the like. Furthermore, since the liquid is enclosed in the water bag 9, it is possible to prevent the steam generator 3 from growing mold during storage before the mask 1 is used.

Further, according to the mask 1 of this embodiment, since the steam generator 3 is formed using the water-impermeable main sheet 30, the liquid flowing out of the water bag 9 leaks to the outside and the mask body 2 is damaged. You can prevent it from getting wet. Therefore, there is no possibility that the user will feel uncomfortable while wearing the mask 1 on the face.

Further, according to the mask 1 of the present embodiment, the permeation amount of steam passing through the steam generator 3 is preferably 0.5 g/h or more, more preferably 0.6 g/h or more, and still more preferably 0.7 g/h. As described above, a larger amount of steam than conventional products can be supplied to the user's mouth and throat for effective humidification, and the user can feel a sufficient amount of steam, giving the user a sense of satisfaction. Obtainable.

According to the mask 1 of the present embodiment, the moisture permeability of the steam generator 3 is preferably 7000 g/m ² ·day or more, preferably 8500 g/m ² ·day or more, more preferably 10000 g/m ² ·day or more. and/or the viscosity of the liquid in the water bag 9 is preferably 40 mPa·s or more and 4000 mPa·s or less, more preferably 1000 mPa·s or more and 2500 mPa·s or less, still more preferably 1500 mPa·s or more and 2000 mPa·s or less. Therefore, the permeation amount of vapor permeating the vapor generating body 3 can be sufficiently increased.

Further, according to the mask 1 of the present embodiment, the liquid in the steam generator 3 is heated by the heating element 4 to evaporate the water content, so that a large amount of steam is efficiently generated and supplied to the user's mouth and throat. can do. In addition, since the heating element 4 continues to heat the liquid in the vapor generating element 3, a large amount of vapor can be generated for a long period of time and supplied to the user's mouth and throat, thereby drying the mouth and throat for a long period of time. can be suppressed.

Further, according to the mask 1 of the present embodiment, the space between the mask body 2 and the user's face is comfortably warmed by the heat from the heating element 4 . Therefore, a relaxing effect can be imparted to the user wearing the mask 1, so that, for example, by wearing the mask 1 at bedtime, the user can sleep comfortably and can induce a comfortable sleep.

Further, according to the mask 1 of this embodiment, since the steam generator 3 is interposed between the heating element 4 and the user's face, the heating element 4 does not directly hit the user's face when the mask 1 is worn. Therefore, it is possible to prevent the user from getting burned on the face or feeling uncomfortable.

Description of Modifications Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible without departing from the gist of the present invention.

For example, in the above-described embodiment, the mask body 2 is formed by stacking at least three sheets 6 to 8, and the mask body 2 has at least the accommodation portions 22 and 23 formed between the two adjacent sheets. There are two of them, and the steam generating element 3 and the heating element 4 are housed in separate housings 22 and 23 of the mask body 2 . For example, as a variation, the mask body 2 may house the steam generating element 3 and/or the heating element 4 together in the same housing. In this modification, the mask body 2 is formed by stacking two sheets, and the steam generating element 3 and the heating element 4 are placed together or either alone in a bag-like housing portion between the two sheets. can accommodate.

As another modification, a pocket (not shown) may be attached to the mask body 2 on the user's face side, and either the steam generator 3 or the heat generator 4 may be accommodated in the pocket.

In addition, in the above embodiment, the liquid in the steam generator 3 is heated by the heating element 4 to evaporate, but the method of heating the liquid in the steam generator 3 is not particularly limited, and various methods can be used. be able to. For example, as a modified example, the steam generator 3 in which the water bag 9 is opened and the liquid is allowed to flow out may be heated by a microwave irradiation device such as a microwave oven. By wearing the mask 1 having the steam generator 3 in a heated state, a large amount of steam may be emitted from the steam generator 3 immediately after wearing. In this modification, since it does not take time to generate steam, a large amount of steam can be supplied to the user's mouth and throat immediately after wearing the mask 1, and the heat of the steam generator 3 heats the mask body 2. The space between the inner face can be heated.

As another modification, the steam generator 3 may be configured to emit a large amount of steam by a method other than heating. Furthermore, the steam generating body 3 may emit steam by evaporating the water contained in the internal liquid naturally (by the user's breathing) without applying any means.

In addition, in the above-described embodiment, the steam generator 3 is mounted on the mask body 2 so that the axis P1 faces the vertical direction, whereas the heating element 4 is mounted on the mask body 2 so that the axis P2 is inclined in the vertical direction. By this, the steam generating element 3 and the heat generating element 4 are displaced from each other so that the steam generating element 3 and the heat generating element 4 do not completely overlap and one of the centroids O1 and O2 is placed on the ear hook portion 5 The position is shifted toward the For example, as another modification, the heating element 4 is also mounted on the mask body 2 so that the axis P2 faces the vertical direction in the same manner as the steam generating element 3, and the heating element 4 is positioned vertically with respect to the steam generating element 3. The steam generating element 3 and the heat generating element 4 are displaced from each other by, for example, shifting or laterally displacing the steam generating element 3 and the heat generating element 4 so that the steam generating element 3 and the heat generating element 4 do not completely overlap each other. One of the centroids O1 and O2 of 4 may be displaced toward the ear hook 5 . Note that the steam generator 3 and the heat generator 4 may be mounted on the mask body 2 so as to completely overlap each other.

In addition, in the above embodiment, the mask main body 2 has a three-dimensional structure that forms a large space between the nostrils and the mouth when worn on the user's face. However, the structure of the mask body 2 is not particularly limited. For example, the mask body 2 is flat before use. It may be of a structure (a structure that adheres to the surface of the face more than a three-dimensional structure).

In addition, in the above-described embodiment, the steam generator 3 is formed using the main sheet 30 that is impermeable, moisture-permeable, and air-permeable. trapped in However, the steam generator 3 is not limited to a structure that confines the liquid inside. It may be structured to

As an example of the steam generating body 3 having a structure containing water, a main sheet 30 formed in a sheet form from, for example, a fiber material, a water-absorbing resin material, a sponge-like resin material, or the like can be used. Examples of sheet-like fibers include woven fabrics and nonwoven fabrics, and among these, nonwoven fabrics are preferred. Textile materials for woven fabrics and non-woven fabrics include, for example, natural fibers such as pulp and cotton; semi-synthetic fibers such as rayon and acetate; synthetic fibers such as polypropylene, polyethylene, polyester (eg polyethylene terephthalate), acrylic, nylon and polyvinyl chloride fibers; mixed fibers of these and the like can be exemplified.

Among them, a nonwoven fabric using pulp can be preferably used for the main sheet 30, and the manufacturing method is not particularly limited, but it can be manufactured by an airlaid method or the like, and is mainly used from the viewpoint of productivity, workability and durability. It is preferable to blend a heat-fusible fiber such as polyethylene with the pulp as a component in a predetermined ratio. Since the main sheet 30 in this example retains the liquid flowing out of the water bag 9 by containing water, the basis weight is preferably 200 g/m ² or more, more preferably 300 g/m ² or more, and more preferably 500 g/m 2 . It is more preferable that it is above. On the other hand, if the fabric weight of the main sheet 30 is too large, the steam generator 3 may become hard and the user may feel uncomfortable when wearing the mask 1. Therefore, the fabric weight of the main sheet 30 should be 1500 g/m ² or less. is preferred, 1000 g/m ² or less is more preferred, and 600 g/m ² or less is even more preferred.

In addition, a sheet-like fiber containing an absorbent resin, for example, an SAP sheet containing a super absorbent polymer (SAP) can be preferably used for the main sheet 30 . A SAP sheet is a nonwoven fabric (for example, an air-laid nonwoven fabric) carrying SAP.

The steam generator 3 can have a single layer structure of the main sheet 30 or a multi-layer structure in which the main sheet 30 is combined with another sheet. It is preferable to have a three-layer structure in which the main sheet 30 is sandwiched between nonwoven fabrics (corresponding to the outer sheet 31 and the lining sheet 32 in the above embodiment). The pair of nonwoven fabrics may be made of the same material or may be made of different materials. Materials for these nonwoven fabrics include hydrophilic natural fibers, hydrophobic synthetic fibers, and blended fibers thereof. Preferred examples of natural fibers include rayon and cotton, and more preferred is rayon. be able to. If the main sheet 30 is made hydrophilic, it will be easier for the main sheet 30 to absorb moisture, which has the advantage of facilitating manufacturing. As the synthetic fiber, polyethylene, polypropylene and polyester (for example, polyethylene terephthalate) are preferably mentioned, and polyethylene and polypropylene are preferably mentioned. Hydrophobicity has the advantage of preventing wetting and stickiness. Therefore, it is preferable to form the nonwoven fabric on the outside of the main sheet 30 (on the side opposite to the water bladder 9) from synthetic fibers, and to form the nonwoven fabric on the inside (on the side of the water bladder 9) from natural fibers such as rayon. The pair of nonwoven fabrics preferably has a basis weight of, for example, 20 g/m ² or more and 50 g/m ² or less.

As the steam generating body 3 having a structure that retains the above-described liquid by containing water, for example, the same material as a filter that retains water used in a conventional mask, or a filter that retains water such as vaginal discharge, menstrual blood, sweat, urine, etc. It is possible to use the same material as the absorber or the like used in the body fluid absorbent article that absorbs body fluid.

In the mask 1 in which the mask main body 2 is provided with the steam generating body 3 structured to hold the above-mentioned liquid by containing water, the water bag 9 in the steam generating body 3 is opened at the time of use, and the water bag 9 is released from the steam generating body. When the liquid is allowed to flow out into the inside 3, the steam generator 3 retains the liquid by absorbing (absorbing) the liquid, so that the liquid flowing out from the water bag 9 leaks to the outside and the mask body 2 is prevented from getting wet. can be done. Therefore, there is no possibility that the user will feel uncomfortable while wearing the mask 1 on the face. Then, when the user wears the mask 1 on the face, the liquid held by the steam generator 3 is heated by the heating element 4 to efficiently evaporate the water content, and the steam generated by the user's breathing is released to the user. supplied to the oral cavity. This makes it possible to locally moisten the user's mouth and throat to prevent the mouth and throat from drying out. When using the mask 1 of the modified example, unlike the conventional product, the user does not need to store the wet filter in the storage portion, and only needs to press the steam generating body 3, which saves time and effort. , the user's hands are less likely to get dirty with water or the like. Furthermore, since the liquid is enclosed in the water bag 9, it is possible to prevent the steam generator 3 from growing mold during storage before the mask 1 is used.

Moreover, since the liquid held by the steam generator 3 is heated by the heating element 4 and evaporated, a large amount of steam can be efficiently generated and supplied to the user's mouth and throat. In addition, since the heating element 4 can continue to heat the liquid held by the steam generating element 3, a large amount of steam can be generated for a long time and supplied to the user's mouth and throat, thereby preventing dryness of the mouth and throat. can be suppressed for a long time.

In addition, since the liquid held by the steam generator 3 is heated by the heating element 4 to evaporate, the space between the mask body 2 and the face is comfortably warmed and humidified. Therefore, a relaxing effect can be imparted to the user wearing the mask 1, so that, for example, by wearing the mask 1 at bedtime, the user can sleep comfortably and induce a comfortable sleep.

Also, since the steam generator 3 is interposed between the heating element 4 and the user's face, the heating element 4 does not directly hit the user's face when the mask 1 is worn. Therefore, it is possible to prevent the user from getting burned on the face or feeling uncomfortable.

In the above modification, the steam generator 3 contains the water bag 9 containing the liquid inside, and the liquid flowing out of the water bag 9 is retained by water absorption (absorption), so that the steam generator 3 can be Although the liquid to be evaporated is held, the steam generating body 3 may hold the water to be evaporated by preliminarily holding the liquid by hydration without providing the water bag 9 .

In addition, in the above-described embodiment, the articles mounted on the mask body 2 are the steam generator 3 and the heating element 4, but other articles such as an aromatic body and a deodorant body may be used.

Examples of the present invention will be described below. In addition, the present invention is not limited to the following examples.

First, a test was conducted on the relationship between the permeation amount of steam permeating the steam generator and the amount of steam felt by the user wearing the mask. Specifically, a plurality of types of bag-shaped steam generators having water impermeability and different moisture permeability formed using the above liquid-impermeable resin film and/or nonwoven fabric are prepared, and each steam is generated. 4.5 g of the liquid shown in Table 1 below was enclosed in the generator. All of the steam generators have a rectangular shape with a size of 55 mm in width and 78 mm in length, and the outer peripheral edge thereof is joined by heat sealing to form a seal portion, and the width of the seal portion is 5 mm. The moisture permeability of the steam generator of each test example and the viscosity of the liquid enclosed in the steam generator are as shown in Table 2 below. After measuring the weight of the steam generator of each test example first, it was allowed to stand on a hot plate at 40°C for 1 hour in an environment with a temperature of 25°C and a humidity of 55%, and the weight was measured after 1 hour. and measured the weight change. From the obtained weight change, the permeation amount of vapor was calculated for the vapor generator of each test example. Table 2 shows the results.

In addition, the steam generator of each test example was housed in the second housing portion of the mask body having the structure shown in FIGS. A sensory evaluation was performed on the moisturizing effect of the mask by having 6 subjects wear the mask housed in the room for 60 minutes in an environment with a temperature of 25°C and a humidity of 55% while heating the disposable body warmer. A VAS (Visual Analogue Scale) method was used for the evaluation. Specifically, the left end (0 points) of the 10 cm line is scored as “not feeling the humidification effect”, and the right end (10 points) is scored as “the humidification effect is very felt”, and when wearing each mask We asked them to mark where on the straight line the amount of steam they felt was applied. Evaluation results were summarized by averaging the scores of all subjects and rounding off to the first decimal place. Table 2 shows the results.

According to Table 2, when the permeation amount of steam permeating the steam generating body is 0.5 g/h or more, a large amount of steam is supplied to the user's mouth and throat to effectively humidify the user, and the user's mouth and throat are sufficiently humidified. It can be seen that the user can feel a sufficient amount of steam and obtain a sense of satisfaction.

Next, a test was conducted on the relationship between the viscosity of the liquid inside the steam generator and the permeation amount of vapor permeating the steam generator. Specifically, in the same manner as in the test example described above, a plurality of bag-shaped steam generators having water impermeability and the same moisture permeability were prepared, and liquids with different viscosities were prepared for each steam generator (components are shown in Table 1). shown) was enclosed in 4.5 g. The moisture permeability of the steam generator of each test example and the viscosity of the liquid enclosed in the steam generator are as shown in Table 3 below. For each test example, after measuring the weight first, let it stand on a hot plate at 40 ° C. for 1 hour in an environment with a temperature of 25 ° C. and a humidity of 55%. was measured. From the obtained weight change, the permeation amount of vapor was calculated for the vapor generator of each test example. Table 3 shows the results.

According to Table 3, when the viscosity of the liquid in the steam generator increases, the permeation amount of vapor permeating the vapor generator increases, and when the viscosity of the liquid exceeds 2000 mPa s, the permeation amount of vapor permeating the vapor generator decreases. It was confirmed that when the viscosity of the liquid began to decrease and the viscosity of the liquid exceeded 2500 mPa·s, the degree of decrease in the amount of permeation increased. Therefore, it can be seen that by setting the viscosity of the liquid to 2500 mPa·s or less, and further to 2000 mPa·s or less, the permeation amount of vapor permeating the vapor generating body 3 can be increased. Further, when the moisture permeability of the steam generating body is 8500 g/m ² ·day or more, the permeation amount of the steam passing through the steam generating body is 0.5 g/h or more regardless of whether the viscosity of the liquid is high or low. It can be seen that a large amount of vapor can be delivered to the user's mouth and throat.

Next, a test was conducted on the relationship between the moisture permeability of the steam generator and the permeation amount of steam permeating the steam generator. Specifically, in the same manner as in the test example described above, a plurality of bag-shaped steam generating bodies having water impermeability and different moisture permeability were prepared, and liquids having the same viscosity were prepared in each of the steam generating bodies (components are shown in Table 1). shown) was enclosed in 4.5 g. The moisture permeability of the steam generator of each test example and the viscosity of the liquid enclosed in the steam generator are as shown in Table 4 below. For each test example, after measuring the weight first, let it stand on a hot plate at 40 ° C. for 1 hour in an environment with a temperature of 25 ° C. and a humidity of 55%. was measured. From the obtained weight change, the permeation amount of vapor was calculated for the vapor generator of each test example. Table 4 shows the results.

According to Table 4, as the moisture permeability of the steam generator increases, the permeation amount of steam that permeates the steam generator increases, and the moisture permeability of the steam generator is 10000 g/m ² ·day or more than 8500 g/m ² ·day. , the permeation amount of steam permeating the steam generator can be increased, and a larger amount of steam can be supplied to the user's mouth and throat.

1 mask 2 mask body 3 steam generator 4 heating element 6 first sheet of mask body 7 second sheet of mask body 8 third sheet of mask body 22 first storage part of mask body 23 second storage part of mask body 30 main seat

Claims (6)

a mask body worn on a user's face;
at least one article mounted on the mask body,
The mask body is composed of a laminate of at least two sheets, and between the two adjacent sheets, there is a storage section for storing the article and a storage section for inserting the article into the storage section. is formed with an opening of
A mask, wherein at least one of the articles has a tapered lower portion that is downward in a direction of insertion into the accommodating portion. 2. The mask according to claim 1, wherein the lower portion of the article has a curved and tapered shape at least in a portion other than the tip portion. 3. The mask of claim 2, wherein the lower portion of the article has a generally curving and tapering shape. 4. The mask according to any one of claims 1 to 3, wherein the article has at least one corner portion of 90° or less on the upper side when stored in the storage portion. 5. The mask of claim 4, wherein the top of the article has sharp corners. The mask main body is composed of a laminate of three sheets, and has two storage portions for storing the article,
The articles are separately accommodated in the two accommodation sections, one of the accommodation sections accommodates a steam generator containing a liquid containing water as a main component as the article, and the other accommodation section accommodates the articles. contains, as the article, a heating element for heating the liquid held by the steam generator to emit steam from the steam generator;
2. The steam generating element and the heat generating element are housed in the housing portion of the mask body so as to be positioned in this order from the user's face side to the steam generating element and the heat generating element. 6. The mask according to any one of 5 to 6.

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