JP2011045661A - Mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mask having both features of reliably preventing a gap from being generated between a mask body as an air filter and a face, as well as of achieving excellent fitting feeling. <P>SOLUTION: A shape-keeping member 3 of an endless form formed by a shape-keeping material with shape-keeping feature and flexibility is provided around the mask body 2 as an air filter. Further, a gel layer 4 having adhesion to the skin is formed at a face-contacting side of the shape-keeping member. The mask body is also provided with a bent-keeping member 6 formed by the shape-keeping member in a bent shape projecting to the outside of the mask body so as to fit a user's nose. The mask, wherein the shape-keeping function of the bent-keeping member is greater than the shape-keeping function of the shape-keeping member, is proposed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention covers the nose and mouth at the time of wearing to prevent the entry of fine foreign matter in the air such as dust, viruses, pollen, etc., and to prevent the spread of splashes from the oral cavity and nasal cavity of patients, etc. Regarding masks.

  In the conventional general sanitary mask, a gap is generated between the mask main body as a ventilation filter and the face during wearing, and therefore, entry or outflow of a foreign substance through the gap cannot be prevented. For this reason, proposals for solving such problems have been made conventionally.

  For example, in the one described in Patent Document 1, a highly water-containing gel such as a water-soluble polymer such as an acrylic acid compound or gelatin is installed as a highly viscoelastic adhesive on the periphery of the mask body as a ventilation filter. This ensures close contact with the face.

However, such a mask has the following problems.
First of all, since the shape maintaining function of the highly water-containing gel is low, a part of the mask body is separated from the face due to facial movement or deformation of the mask body due to external force, resulting in a gap there. is there.

  Moreover, the highly water-containing gel has a problem that the moisture contained therein is easily evaporated and dried, and the adhesiveness is lowered by the drying, so that the gel is easily separated from the face. For this reason, the mask of Patent Document 1 is preferably marketed in a state of being sealed in a bag formed of a film that is difficult to pass water vapor.

  On the other hand, as another conventional technique, the one described in Patent Document 2 has an open cell type foam member having a closed cell type or a surface dense layer in the peripheral part of the mask body, and a front surface of the foam member on the side facing the face. The mounting part which consists of the provided adhesive member is installed.

  In this mask, the foam member of the wearing part deforms according to the unevenness of the face due to its flexibility when worn, so there is no gap in the peripheral part of the mask body, and the adhesive member adheres to the face It is. Examples of the adhesive member include an adhesive layer formed by applying a polyacrylic adhesive material to a foam member, an adhesive tape, or a foam member impregnated with an adhesive material.

However, such a mask has the following problems.
That is, in this mask, the foam member constituting the mounting portion is deformed in accordance with the unevenness of the face due to its flexibility as described above, so that there is no gap in the peripheral portion of the mask body. The function is low, and by itself, the mask body can be partly separated from the face due to the movement of the face or deformation of the mask body due to external force, and a gap can be created there, so an adhesive member is essential The required adhesive strength is relatively large. The contact of the adhesive having a relatively large adhesive strength to the face in this way makes the skin feel uncomfortable and uncomfortable, and may cause makeup collapse when worn by women.

  Even if the mask body is deformed according to the unevenness of the face, the nose is greatly raised from both cheeks, so it is relatively difficult to deform according to the unevenness, and it is formed by the nose and both cheeks. A gap is apt to occur in the concave portion. Therefore, in the mask described in Patent Document 3, for example, a non-breathable elastic bent piece that is bent inward and downward is provided at the upper edge of the mask body, and is formed between the nose and both cheeks. I try to close the gap.

  However, the elastic bent piece can prevent direct air flow from the gap toward the glasses and prevent the fogging of the glasses, but cannot completely close the gap, and does not pass through the gap. Air circulation cannot be prevented.

Japanese Patent Laid-Open No. 11-128378 JP 2005-13492 A JP 2009-66382 A

  As described above, the conventional mask has both characteristics of reliably preventing a gap from being generated between the mask body as a ventilation filter and the face and obtaining a good wearing feeling. There is nothing, and problems arise on either side.

  Accordingly, the first object of the present invention is to provide a mask having both of these characteristics.

  The present invention also provides a mask capable of enhancing the ability to remove bacteria and viruses using a drug, which is not supposed at all in the conventional masks, including the conventional technology as described above. The purpose is.

  In the present invention, in order to solve the above-described problem, an endless shape maintaining body formed of a shape maintaining material having shape maintaining properties and flexibility is disposed in the periphery of the mask main body as a ventilation filter. In addition, a gel layer having skin adhesion is formed on the face-contacting side of the shape maintaining body, and the mask body corresponds to the wearer's nose by a shape maintaining material in the outward direction of the mask body. The present invention proposes a mask that is provided with a curvature maintaining body formed in a convex curved shape, and whose shape maintaining action is larger than the shape maintaining action of the shape maintaining body.

  Further, the present invention proposes a mask in which the curvature maintaining body is formed of a band-shaped shape maintaining material in the above configuration.

  Further, the present invention proposes a mask in which the curvature maintaining body is formed of a rod-shaped shape maintaining material in the above configuration.

  Further, the present invention proposes a mask in which, in the above configuration, the curvature maintaining body is provided on the outer surface side of the mask body.

  Further, the present invention proposes a mask in which, in the above configuration, the curvature maintaining body is provided between the shape maintaining body and the mask main body.

  Further, the present invention proposes a mask in which, in the above configuration, the curvature maintaining body is provided between the shape maintaining body and the gel layer.

  Further, the present invention proposes a mask in which, in the above configuration, the curvature maintaining body is provided in the gel layer.

  Further, according to the present invention, in the above configuration, by forming the nose corresponding portion of the shape maintaining body thicker than the other portions, the shape maintaining property is made larger than the other portions, and the shape is made a curved shape. We propose a mask that acts as a curved maintenance body.

  Further, the present invention proposes a mask in which the shape maintaining body is formed of a band shape maintaining material in the above configuration.

  Further, the present invention proposes a mask in which, in the above configuration, the shape maintaining body is formed as a laminated structure of a band-shaped shape maintaining material and a flexible material. And in this invention, this laminated structure proposes the mask which is a strip | belt-shaped shape maintenance material arrange | positioned at the mask main body side and the gel layer side, and the three-layer structure of the flexible material pinched | interposed between them.

  Further, the present invention proposes a mask having the above-described configuration, in which the shape maintaining body is formed as a cylindrical body, the interior space of which can be filled with water, and water passage holes are formed on the gel layer side. .

  The present invention also proposes a mask having a cylindrical body filled with a porous water-retaining material in the above configuration.

  In the present invention, a mask is proposed in which the porous water retaining material is selected from sponge, zeolite, or activated carbon in the above configuration.

  Further, the present invention proposes a mask in which water passage holes are formed on the mask body side in the cylindrical body in the above configuration.

  In the present invention, a mask is proposed in which the shape maintaining material is a synthetic resin such as polypropylene resin, polyethylene resin, or silicone resin in the above configuration.

  The present invention also proposes a mask in which the flexible material has a lower shape maintaining property than the shape maintaining material and is a highly flexible synthetic resin.

  Further, the present invention proposes a mask in which the shape maintaining material is a shape memory material such as a shape memory alloy, a shape memory resin, or a superelastic alloy in the above configuration.

  Further, the present invention proposes a mask in which the gel having skin adhesion is a hydrophilic gel in the above configuration.

  Further, the present invention proposes a mask in which the mask main body is configured to be detachable from the shape maintaining body in the above configuration.

  In the mask of the present invention, an endless shape maintaining body corresponding to the periphery of the nose and mouth of the person to be worn is disposed in the peripheral portion of the mask body, and when worn, this endless annular shape maintaining body is in its shape. The gel layer having skin adhesion formed on the face contact side of the shape maintaining body is maintained in a shape corresponding to the shape around the wearer's nose and mouth to some extent by the maintainability and flexibility. Close contact with facial skin.

  At the same time, the mask main body is provided with a curve maintaining body formed in a curved shape convex to the outside of the mask main body by a shape maintaining material corresponding to the nose of the wearer, and the shape maintaining action of the curve maintaining body is provided. Since the shape maintaining body is configured to be larger than the shape maintaining action of the shape maintaining body, the shape maintaining body is bent along the convex shape of the nose due to the curved shape of the curved maintaining body at the nose corresponding portion of the wearer. That is, the shape maintaining body is bent into a convex shape up to the base side of the nose due to the curved shape of the curvature maintaining body, and then bent along the concave shape due to the shape maintaining ability and flexibility of the nose and the cheek. .

  In this way, the shape maintaining body corresponds well to the curved shape around the wearer's nose and mouth, and in this state, the gel layer having skin adhesion formed on the face contact side of the shape maintaining body is applied to the facial skin. Adheres closely and creates no gaps.

  In this way, air flow into and out of the endless shape maintaining body is reliably prevented by the gel layer, so air flow to the nose and mouth is only through the mask body, and fine foreign matter in the air such as dust, viruses, pollen, etc. Can be reliably prevented from entering through the gap between the mask main body and the face, and splashing to the outside.

  Since it adheres to the face through a gel layer such as a hydrophilic gel, it does not cause a sense of incongruity unlike an adhesive, and the feeling of wearing is good.

  Here, the curve maintaining body can be formed by a band-shaped or rod-shaped shape maintaining material, and the shape maintaining body can be formed by the shape maintaining material itself formed in a band shape, or it can be formed flexibly. It can also be formed as a laminated structure of materials. In that case, when the laminated structure is a three-layer structure of a belt-like shape maintaining material arranged on the mask body side and the gel layer side and a flexible material sandwiched between them, both the mask body and the gel layer are respectively The shape maintaining body can maintain the shape well, and by holding the flexible material between the shape maintaining materials on both sides, the deformability is good, so that the shape maintaining body can be attached to the face of the wearer. It can be deformed and maintained in an endless shape well matched to the shape.

  Further, the nose-corresponding portion of the shape maintaining body can be formed into a curved shape, and the shape maintaining property can be made larger than the other portions to act as a curved maintaining body.

  In order to exhibit the above-described function of the curve maintaining body or the shape maintaining body, as the shape maintaining material, a plastic having an appropriate shape maintaining property and flexibility can be used, as well as a shape memory alloy, a shape memory resin, Alternatively, a shape memory material such as a superelastic alloy can be used.

  Next, in the present invention, the shape maintaining body is configured as a cylindrical body so that it can be filled with water, and if this cylindrical body is filled with water, the filled water has a water passage hole due to capillary action. Thus, since the gel layer is supplied, it is possible to prevent the gel layer from being dried and the adhesion force from being lowered.

  In addition, if a cylindrical body is provided with a water passage hole on the mask body side, moisture supplied from the water hole to the mask body increases the moisture retention capacity of the space around the user's nose and mouth. Along with chemicals, it has the effect of suppressing the growth of viruses and bacteria.

  In addition, if a medicine such as a bactericidal agent, a disinfectant, or an antibacterial agent is added to the cylindrical body together with water, the medicine is supplied to the gel layer and the mask body together with water, and the propagation of germs can be prevented. The cylindrical body can be repetitively used by making it possible to replenish water, a disinfectant, and the like through an opening with a lid.

  In the mask of the present invention, if the mask main body is configured to be detachable from the shape maintaining body, it can be used repeatedly by exchanging the mask main body.

FIG. 1 is a schematic front view showing the first embodiment of the mask of the present invention in a worn state. FIG. 2 is a schematic longitudinal sectional view of FIG. FIG. 3 is a schematic cross-sectional view taken along line AA of FIG. FIG. 4 shows a second embodiment of the mask of the present invention in a worn state, and is a schematic cross-sectional view of the same part as in FIG. FIG. 5 shows a third embodiment of the mask of the present invention in a worn state, and is a schematic cross-sectional view of the same portion as FIG. FIG. 6 shows a fourth embodiment of the mask of the present invention in a worn state, and is a schematic cross-sectional view of the same portion as FIG. FIG. 7 shows a fifth embodiment of the mask of the present invention in a worn state, and is a schematic cross-sectional view of the same portion as FIG. FIG. 8 is a schematic enlarged sectional view of a portion corresponding to the line BB in FIG. 1 in the first to fifth embodiments of the mask of the present invention. FIG. 9 is a schematic enlarged cross-sectional view of a portion corresponding to the line BB in FIG. 1 in the sixth embodiment of the mask of the present invention. FIG. 10 is a schematic enlarged sectional view of a portion corresponding to line BB in FIG. 1 in the seventh embodiment of the mask of the present invention. FIG. 11 is a schematic enlarged cross-sectional view of a portion corresponding to the line BB in FIG. 1 in the eighth embodiment of the mask of the present invention. FIG. 12 is a schematic perspective view showing an example of an endless shape of the shape maintaining body. FIG. 13 is a schematic perspective view showing another example of the endless shape of the shape maintaining body.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
First, in the first embodiment shown in FIGS. 1 to 3, reference numeral 1 generally indicates a mask of the present invention, and the mask of the present invention has a shape maintaining property in the peripheral portion of the mask body 2 as a ventilation filter. An endless shape maintaining body 3 formed of a flexible shape maintaining material is disposed, and a gel layer 4 having skin adhesion is formed on the face contacting side of the shape maintaining body 3. Further, the mask main body 2 is provided with a curve maintaining body 6 formed in a curved shape convex toward the outer side of the mask main body by a shape maintaining material corresponding to the nose of the wearer 5. The shape maintaining action 6 is formed larger than the shape maintaining action of the shape maintaining body 3.

  Here, as the mask body 2 as a ventilation filter, a material such as a nonwoven fabric having high filter performance can be used. Moreover, as the shape maintenance material 5 constituting the shape maintenance body 3 and the curvature maintenance body 6, as described above, a plastic having an appropriate shape maintenance property and flexibility can be used, as well as a shape memory alloy and a shape memory resin. Alternatively, a shape memory material such as a superelastic alloy can be used. A hydrophilic gel can be used as the gel having skin adhesion.

  In the first embodiment shown in FIG. 1 to FIG. 3, the curve maintaining body 6 is formed as a band-shaped piece in which a shape maintaining material is curved convexly toward the outer side of the mask body 2. It is provided on the outer surface side. The curve maintaining body 6 is not shown, but may be formed as a rod-shaped member. The curved shape of the curved maintenance body 6 is a shape corresponding to the cross-sectional shape of the nose. For each wearer, for example, large, It can be provided as a mask provided with a bending maintenance body 6 having a plurality of types of bending shapes such as medium and small. Further, the curved shape of the curved maintenance body 6 is elastic by forming the distance between both ends slightly shorter than the width of the corresponding nose, and pressing the protruding side of the curved maintenance body 6 when wearing the mask. It is also possible to pinch the nose.

  In the above configuration, in the mask 1 of this embodiment, the wearer 5 wears the mask main body 2 around the nose and mouth and the support string body 7 on the ear.

  In the mask of the present invention, an endless shape maintaining body 3 corresponding to the circumference of the nose and mouth of the wearer 5 is arranged in the peripheral portion of the mask main body 2, and at the time of wearing, the endless annular shape maintaining body 3 is The shape maintaining property and flexibility maintain the shape corresponding to the shape of the wearer 5 around the nose and mouth to some extent, and in this state, the skin adhesion formed on the face contact side of the shape maintaining body 3 The gel layer 4 having a close contact with the skin of the face.

  At the same time, the mask main body 2 is provided with a curvature maintaining body 6 on the outer surface side of the mask main body 2 corresponding to the nose of the wearer 5, and the shape maintaining action of the curvature maintaining body 6 is the shape of the shape maintaining body 3. Since it is configured to be larger than the maintenance action, the shape maintenance body 3 is bent along the convex shape of the nose by the curved shape of the curvature maintenance body 6 at the nose corresponding portion of the wearer 5. That is, the shape maintaining body 3 is bent into a convex shape up to the base side of the nose, as shown in FIG. It is bent along the concave shape by the cheek.

  Thus, the shape maintaining body 3 corresponds well to the curved shape around the nose and mouth of the wearer 5, and in this state, the gel layer 4 having skin adhesion formed on the face contact side of the shape maintaining body 3 is formed. Adheres to the skin of the face and does not create a gap.

  Thus, the air flow into and out of the endless shape maintaining body 3 is reliably prevented by the gel layer 4, so the air flow to the nose and mouth is only through the mask body 2, and in the air such as dust, viruses and pollen It is possible to reliably prevent fine foreign matter from entering through the gap between the mask body 2 and the face, and splashing to the outside.

  Since it adheres to the face through the gel layer 4 such as a hydrophilic gel, it does not cause a sense of incongruity like an adhesive, it has a good feeling of wearing, and a woman does not wear it and does not cause makeup collapse. .

  In the embodiment described above, the mask 1 is provided with the support string body 7 on the mask main body 2. However, the mask 1 may be configured to be supported on the face exclusively by the skin adhesion of the gel layer 4. .

  In the mask 1 of the embodiment described above, the curvature maintaining body 6 for bending the shape maintaining body 3 in accordance with the unevenness at the nose portion of the wearer 5 is provided on the outer surface side of the mask main body 2. It can also be provided at other locations as shown below.

  First, in the second embodiment of the mask 1 of the present invention shown in FIG. 4, the curvature maintaining body 6 is provided between the shape maintaining body 3 and the mask main body 2. Further, in the third embodiment of the mask 1 of the present invention shown in FIG. 5, the curvature maintaining body 6 is provided between the shape maintaining body 3 and the gel layer 4. Further, in the fourth embodiment of the mask 1 of the present invention shown in FIG. 6, the curvature maintaining body 6 is provided in the gel layer 4. Furthermore, in 5th Embodiment of the mask 1 of this invention shown in FIG. 7, while making a nose corresponding | compatible part of a shape maintenance body thicker than another part, shape maintenance property is made larger than another part, The shape is made to be a curved shape to act as the curved maintenance body 6.

  In any configuration of these embodiments, the curvature maintaining body 6 can be formed as a rod-like body in addition to being formed as a strip-shaped piece as shown in the figure.

  Next, FIG. 5 is a schematic enlarged cross-sectional view of a portion corresponding to the line BB in FIG. 1 in the above-described first to fifth embodiments of the mask 1 of the present invention. The shape maintaining body 3 shown in this figure is formed in a band shape by the shape maintaining material itself as described above, but can be formed as shown below.

First, FIG. 9 is an enlarged view of the main part of the mask according to the sixth embodiment of the present invention. In this embodiment, the shape maintaining body 3 is composed of a band-shaped shape maintaining material 8 and a flexible material 9. It is formed as a laminated structure. That is, this laminated structure is a structure in which the flexible material 9 is sandwiched between the band-shaped shape maintaining materials 8 and 8 arranged corresponding to the mask body 2 side and the gel layer 4 side, respectively. Both the mask body 2 and the gel layer 4 are well maintained by the respective band-shaped shape maintaining materials 8 and 8, and the flexible material 9 is sandwiched by the band-shaped shape maintaining materials 8 and 8 on both sides. Therefore, the deformability is good, so that the shape maintaining body 3 can be deformed and maintained in an endless shape well matched to the shape of the face of the wearer 5.
In this case, as the flexible material 9, it is possible to use a synthetic resin having a shape maintenance property lower than that of the shape maintenance material and high flexibility.

  Next, FIG. 10 shows an enlarged view of the main part of the mask according to the seventh embodiment of the present invention. In this embodiment, this embodiment is a shape maintaining body in each of the above-described embodiments. 3 is configured as a tubular body, and the internal space 8 can be filled with water 9. Accordingly, the same components as those in the above-described embodiment are denoted by the same reference numerals, and redundant description is omitted.

  That is, in the mask 1 of this embodiment, a cylindrical shape maintaining material 10 as a shape maintaining body 3 having a shape maintaining function is disposed in an endless shape around the mask body 2 as a ventilation filter. A gel layer 4 having skin adhesion is formed on the face contacting side of the cylindrical shape maintaining material 10, and the cylindrical shape maintaining material 10 is configured to be able to fill the internal space 11 with water, and Water passage holes 12 are formed on the gel layer 4 side. In this embodiment, water passage holes 13 are also formed on the mask main body 2 side of the shape maintaining body 3.

  In order to be able to fill with water, the cylindrical shape maintaining material 10 is provided with a liquid inlet 14 at an appropriate position, and using a tool such as a syringe 15 as shown by a two-dot chain line in FIG. Pure water or water in which a chemical solution is dissolved can be injected. Although not shown, the liquid inlet 14 is provided with an appropriate opening / closing lid, or a rubber stopper that can prevent leakage of the liquid even after the injection needle is punctured, such as a rubber stopper of a vial. Can be provided.

  In the above configuration, in the mask 1 of this embodiment, the cylindrical shape maintaining material 10 as the shape maintaining body 3 having the shape maintaining function is used as an endless peripheral wall corresponding to the nose and mouth of the wearer 5. Because of this arrangement, the shape maintaining function of the endless annular tubular shape maintaining material 10 allows the face contact of the tubular shape maintaining material 14 in a state corresponding to some extent to the shape of the wearer 5 around the nose and mouth. The gel layer 4 having skin adhesion formed on the side is in close contact with the skin of the face of the wearer 5 and does not create a gap, and has many advantages similar to those of the above-described embodiment.

  In this embodiment, if the interior space 11 of the cylindrical shape maintaining material 10 is filled with water, the filled water is supplied to the gel layer 4 through the water passage holes 12 by capillary action. It can prevent that the gel layer 4 dries and adhesive force falls.

  Moreover, if chemicals such as bactericides, disinfectants, and antibacterial agents are placed in the internal space 8 of the cylindrical shape maintaining material 10 together with water, the chemicals are supplied to the gel layer 4 together with water to prevent propagation of germs. can do.

  In this embodiment, since the water passage hole 13 is also formed on the mask body 2 side in the cylindrical shape maintaining material 10, the above-described chemicals are added to the internal space 11 of the cylindrical shape maintaining material 10 together with water. If put in, the chemical is supplied to the mask main body 2 together with water, so that the mask main body 2 can obtain a high ability to remove viruses and bacteria.

  In addition, the moisture supplied from the cylindrical shape maintaining material 10 to the gel layer 4 or the mask body 2 has an effect of suppressing the propagation of viruses and bacteria together with the chemical solution in order to increase the moisturizing power of the space around the nose and mouth. .

  Next, FIG. 11 is an enlarged cross-sectional explanatory view of the main part of the eighth embodiment of the mask of the present invention. This eighth embodiment is the inside of the cylindrical shape maintaining material 10 in the seventh embodiment. Is filled with a porous water-retaining material 16. As the porous water retaining material 16, for example, sponge, zeolite, activated carbon or the like can be used. Further, the shape of the water retaining material 16 is not limited to a bead shape as shown in FIG.

  In the eighth embodiment, water or water containing chemicals is retained in the porous water retention material 16, and therefore can be uniformly retained throughout the endless tubular shape maintenance material 10. When the humidity of the mask body 2 and the gel layer 4 is lowered, water is efficiently supplied to them.

  In the mask of each embodiment of the present invention described above, the endless shape of the shape maintaining body 3 (the band shape maintaining material 8 and the cylindrical shape maintaining material 10) is, for example, as shown in FIG. In addition to a shape that surrounds a relatively narrow area around the mouth, a shape that surrounds a wide area around the nose and mouth as shown in FIG. 13 can be appropriately configured.

  In the mask of the present invention described above, for example, the mask main body 2 is provided with an adhesive tape portion (not shown) having release paper corresponding to the endless annular shape maintaining body 3. On the other hand, if it is detachable, the mask main body 2 used for a predetermined period can be removed from the shape maintaining body 3 by peeling off the adhesive tape portion, and a new mask main body 2 can be attached and fixed by the adhesive tape portion. In this case, the mask of the present invention can be used repeatedly by replacing the mask body 2 and replenishing water or water containing a medicine.

DESCRIPTION OF SYMBOLS 1 Mask 2 Mask main body 3 Shape maintenance body 4 Gel layer 5 Wearer 6 Curvature maintenance body 7 Supporting string body 8 Strip shape maintenance material 9 Flexible material 10 Cylindrical shape maintenance material 11 Internal space 12, 13 Water flow hole 14 Liquid injection Inlet 15 Syringe 16 Water retention material

Claims (20)

An endless shape maintaining body formed of a shape maintaining material having shape maintaining properties and flexibility is disposed on the periphery of the mask main body as a ventilation filter, and the face maintaining side of the shape maintaining body has skin on the face contact side. A gel layer having adhesiveness is formed, and the mask body is provided with a curvature maintaining body formed in a curved shape convex to the outside of the mask body by a shape maintaining material corresponding to the wearer's nose. The mask is characterized in that the shape maintaining action of the curve maintaining body is formed larger than the shape maintaining action of the shape maintaining body. The mask according to claim 1, wherein the curvature maintaining body is formed of a band-shaped shape maintaining material. The mask according to claim 1, wherein the curvature maintaining body is formed of a rod-shaped shape maintaining material. The mask according to claim 1, wherein the curvature maintaining body is provided on an outer surface side of the mask main body. The mask according to claim 1, wherein the curvature maintaining body is provided between the shape maintaining body and the mask main body. The mask according to claim 1, wherein the curvature maintaining body is provided between the shape maintaining body and the gel layer. The mask according to claim 1, wherein the curvature maintaining body is provided in the gel layer. By forming the nose-corresponding portion of the shape maintaining body thicker than the other portions, the shape maintaining property is made larger than the other portions, and the shape is made to be a curved shape and acts as a curved maintaining body. The mask according to claim 1. The mask according to claim 1, wherein the shape maintaining body is made of a band-shaped shape maintaining material. The mask according to claim 1, wherein the shape maintaining body is formed as a laminated structure of a band-shaped shape maintaining material and a flexible material. 11. The mask according to claim 10, wherein the laminated structure is a three-layer structure of a band-shaped shape maintaining material disposed on the mask main body side and the gel layer side and a flexible material sandwiched between them. 2. The mask according to claim 1, wherein the shape maintaining body is formed as a cylindrical body, the interior space thereof can be filled with water, and a water passage hole is formed on the gel layer side. The mask according to claim 12, wherein the cylindrical body is filled with a porous water retention material. The mask according to claim 13, wherein the porous water retaining material is selected from sponge, zeolite, or activated carbon. The mask according to claim 12, wherein a water passage hole is formed in the cylindrical body on the mask main body side. The mask according to claim 1, wherein the shape maintaining material is a synthetic resin such as a polypropylene resin, a polyethylene resin, or a silicone resin. The mask according to claim 10 or 11, wherein the flexible material is a synthetic resin having a lower shape maintaining property and a higher flexibility than the shape maintaining material. The mask according to claim 1, wherein the shape maintaining material is a shape memory material such as a shape memory alloy, a shape memory resin, or a superelastic alloy. The mask according to claim 1, wherein the gel having skin adhesion is a hydrophilic gel. The mask according to claim 1, wherein the mask main body is configured to be detachable from the shape maintaining body.

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