JP2006325688A - Mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mask comfort to wear even for a long time by making the mask to absorb moisture, such as breath, sweat or the like, so as to prevent the inside of the mask from becoming wet or sticky. <P>SOLUTION: The mask 10 worn on the face comprises a mask body 40 and strings 12 (fixing means) for disposing the mask body 40 on a desired position on the face. One surface of the mask body 40 that contacts the face is hydrophobic and the other surface located on the opposite side of the face is hydrophilic. In particular, the mask body 40 is configured by bonding a hydrophobic sheet material 11a and a hydrophilic part 11b, and the hydrophobic sheet material 11a is arranged on the face side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mask.

  Conventionally, a commercially available gauze mask has a mask body in which a plurality of gauze (fabrics) cut into a rectangular shape are overlapped, and a string or rubber string attached to both ends in the length direction of the mask body ( Fixing means). When the mask is worn, a pair of strings or rubber strings are hooked on both ears, and the mask body covers the user's mouth and nose (see, for example, Patent Document 1).

The gauze mask has good water absorption, so it is comfortable to wear, but if you put it on for a long time, the inside will become damp due to a warm moist breath exhausted from the mouth and nose. As a result, the surface in contact with the face of the mask gets wet and sticky, and the feeling of attachment becomes worse.

JP 2004-357871 A

  An object of the present invention is to provide a mask that absorbs moisture such as breath and sweat to prevent wetting and stickiness inside the mask, and does not impair comfort even when used for a long time.

Such an object is achieved by the present inventions (1) to (17) below.
(1) A mask used on the face,
A mask body, and a fixing means for fixing the mask body to a desired portion of the face,
The mask main body comprises a fabric having hydrophobicity on at least a surface that touches the face.

  As a result, it is possible to prevent stickiness and stuffiness due to body fluid remaining on the face side, to give a dry feeling to the wearer, and to provide a mask with good usability.

(2) The mask according to (1), wherein the fabric is made of a nonwoven fabric.
The nonwoven fabric has a relatively high degree of freedom in design at the time of manufacture, and a highly breathable material can be obtained by increasing the aperture ratio.

  (3) The mask according to (1) or (2), wherein the fabric is mainly composed of polyolefin.

  A fiber mainly composed of polyolefin is suitable as a material for a hydrophobic fabric because it has a good touch.

(4) The mask according to any one of (1) to (3), wherein the fabric has hydrophilicity on a surface opposite to the face.
As a result, moisture is actively released to the opposite side and released to the outside of the mask.

(5) The fabric is a hydrophobic fabric,
The said mask main body is a mask in any one of said (1) thru | or (3) provided with a hydrophilic fabric on the opposite side to the said hydrophobic fabric.

  Thereby, on the face side, the fiber does not hold moisture such as breath and sweat, so that it has a smooth feeling, and moisture is positively released to the opposite side and released to the outside of the mask.

  (6) The mask according to (5), wherein the hydrophilic fabric is mainly composed of natural fibers.

  Thereby, the hydrophilic fabric sufficiently absorbs moisture in the mask. The hydrophilic fabric diffuses absorbed moisture around it because of its high air permeability.

  (7) The mask according to any one of (4) to (6), wherein the hydrophilic portion of the mask body has an official moisture content of 3 to 20%.

  Thereby, the part which has the hydrophilic property of a mask main body has sufficient water absorption, and has intensity | strength required in order to comprise a mask main body.

(8) The mask according to any one of (1) to (7), wherein the hydrophobic portion of the mask body has a moisture permeability of 200 g / m ² · h or more.

  Thereby, the humidity of the space generated between the mask and the face is increased, and it is possible to prevent the mask wearer from being uncomfortable.

  (9) The mask according to any one of (1) to (8), wherein the mask body has an average thickness of 0.1 to 10 mm.

  As a result, the mask main body can exhibit the original function of the mask such as dust proofing, and can obtain air permeability sufficient to release moisture.

(10) The mask according to any one of (1) to (9), wherein a space is formed in the mask body, and a carrier having water absorbability is accommodated in the space.
Thereby, the mask main body can avoid moisture more efficiently from the face side.

(11) The mask according to (10), wherein the carrier is granular.
Thereby, the surface area of a support | carrier increases and the improvement of the water absorption (moisture absorption) performance of a support | carrier can be aimed at.

(12) The mask according to (10) or (11), wherein the carrier is a porous body.
Thereby, the surface area of a support | carrier increases and the improvement of the water absorption (moisture absorption) performance of a support | carrier can be aimed at.

  (13) The mask according to any one of (10) to (12), wherein the carrier is mainly composed of a calcium phosphate compound.

  Since calcium phosphate compounds are excellent in hygroscopicity and adsorbability of viruses and fungi, such effects can be imparted to the mask.

  (14) The mask according to any one of (10) to (12), wherein the carrier is mainly composed of a water-absorbing polymer.

  The water-absorbing polymer has particularly high water-absorbing performance, and can avoid moisture particularly efficiently from the face side.

(15) With the mask on the face,
Furthermore, a patch cloth disposed between the face and the mask body is provided,
Correspondingly, the mask according to any one of the above (1) to (14), wherein the cloth has hydrophobicity on the face that touches the face.

  Thereby, since the fiber does not hold moisture such as breath and sweat on the face side of the patch, it feels smooth. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good. In addition, by using a batter, it can be easily replaced when it is soiled, and is hygienic.

(16) A mask that is worn on the face and used.
A mask body, a fixing means for fixing the mask body to a desired portion of the face, and a patch disposed between the face and the mask body with the mask attached to the face,
The mask is characterized in that the surface of the patch that touches the face has hydrophobicity.

  Thereby, since the fiber does not hold moisture such as breath and sweat on the face side of the patch, it feels smooth. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good. In addition, by using a batter, it can be easily replaced when it is soiled, and is hygienic.

  (17) The mask according to (15) or (16), wherein the patch is hydrophilic on a surface opposite to the face.

  Thereby, since the moisture on the face side of the patch is positively released to the opposite side, the mask has a better usability.

  According to the present invention, moisture due to breath and sweat can be contactedly released or absorbed to prevent a sticky feeling or stuffiness on the face side, giving a dry feeling to the wearer. It is possible to provide a good mask.

Hereinafter, the mask of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
<First Embodiment>
FIG. 1 is a plan view showing a first embodiment of the mask of the present invention, and FIG. 2 is a cross-sectional view of the mask shown in FIG.

  As shown in FIG. 1, the mask 10 includes a mask main body 40 and a string (fixing means) 12 for fixing the mask main body 40 to a desired portion of the face. The mask 10 of the present invention is characterized in that a hydrophobic fabric is provided on at least the face of the mask body 40 that touches the face.

Hereinafter, the configuration of the mask 10 will be sequentially described.
The mask body 40 is large enough to cover the mouth and nose of the mask user.

  In the present embodiment, the mask main body 40 has hydrophobicity on the face side and hydrophilicity on the surface opposite to the face.

  Specifically, as shown in FIG. 2, the mask main body 40 is configured by bonding a hydrophobic sheet material (fabric) 11 and a hydrophilic sheet material (fabric) 21 together. And it uses so that the hydrophobic sheet | seat material 11 may be located in the face side.

  By arranging the hydrophobic sheet material 11 on the face side and the hydrophilic sheet material 11 on the opposite side in this way, the sheet material 11 does not hold moisture such as breath and sweat on the face side. In addition, the moisture actively escapes to the opposite side and is released to the outside of the mask. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good.

The hydrophobic sheet material 11 preferably has a moisture permeability of 200 g / m ² · h or more, more preferably 250 g / m ² · h or more, and 350 g / m ² · h or more. Is more preferable. Thereby, the discomfort of the mask wearer due to an increase in the humidity of the space generated between the mask 10 and the face can be prevented.

  Examples of the sheet material 11 include a woven fabric, a nonwoven fabric, and a knitted fabric, but a nonwoven fabric is preferable.

  Non-woven fabrics are clothing materials and packaging materials in which fibers are arranged in an indefinite direction without being subjected to a weaving process, and are entangled or welded / bonded to form a cloth.

  In addition, since the nonwoven fabric is entangled with fibers, there is no vertical and horizontal directionality, and it is difficult to fray the stitches.

  Such a nonwoven fabric has a relatively high degree of freedom in design at the time of manufacture, and a highly breathable material can be obtained by increasing the aperture ratio. Therefore, moisture such as breath and sweat can be quickly transmitted. As a result, it is possible to prevent stickiness and stuffiness due to body fluid remaining on the face side.

  Nonwoven fabric production methods include conventionally used nonwoven fabric production methods, such as a suction heat bond method for heat treating a web obtained using a card machine, a mechanically entangled needle punch method, a hydrolace entangled spunlace method, etc. Alternatively, it can be produced by a spunbond method, a meltblown method, an SMS method (bonding of a spunbond nonwoven fabric and a meltblown nonwoven fabric) or the like. Of these, the spunbond method is preferable because of its good productivity and low cost.

  The fiber diameter, fiber length, etc. of the fibers constituting the nonwoven fabric are not particularly limited, but the fiber diameter is preferably 0.22 to 110 dtex on average, more preferably 0.33 to 50 dtex, and particularly preferably Is 0.55-33 dtex. Although fiber length changes with the manufacturing method of a nonwoven fabric, Preferably it is 3-40 mm.

The basis weight of the nonwoven fabric (the mass of fibers per unit area) is not particularly limited, but is preferably 5 to 60 g / m ² , more preferably 10 to 50 g / m ² . By setting the basis weight within the above range, it is possible to improve the moisture permeability by increasing the aperture ratio while maintaining the necessary strength as a mask.

  The fiber constituting the sheet material 11 is not particularly limited as long as it has hydrophobicity and can form a nonwoven fabric. Recycled fibers such as rayon and acetate, polyester, polyamide, vinylon, polyacrylonitrile, polyolefin, spandex Synthetic fibers and the like can be mentioned, and synthetic fibers or mixed fibers thereof are preferable. More preferred are polyolefins, polyesters and polyamides, and even more preferred are polyolefins. The fibers mainly composed of these materials are suitable as a material for the sheet material 11 because of good touch.

  Examples of the polyolefin include polyethylene, polypropylene, polybutene-1, polypentene-1, and random or block copolymers thereof, or non-methacrylic acid, acrylic acid, maleic acid, fumaric acid, crotonic acid, itaconic acid and the like. Examples thereof include polyolefin polymers obtained by copolymerizing at least one selected from saturated carboxylic acids and derivatives such as esters and acid anhydrides thereof. Furthermore, the graft copolymer which grafted at least 1 sort (s) of the said unsaturated carboxylic acid or its derivative (s) to the said polyolefin-type polymer can be mentioned.

  Examples of the polyester include polyethylene terephthalate and polybutylene terephthalate. Examples of the polyamide include nylon-6 and nylon-66.

  The hydrophobic sheet material 11 may be a sheet material that has been subjected to water repellent treatment. As a result, a fabric having no hydrophobicity can be used as the hydrophobic sheet material 11.

  Examples of the water repellent treatment include a method of applying a water repellent to a hydrophilic sheet material, and a method of further improving hydrophobicity (water repellency) by applying a water repellent to a hydrophobic sheet material.

  Examples of the water repellent include silicone water repellents, fluorine water repellents, paraffin metal water repellents, alkyl chromic water repellents, and acrylic water repellents that are generally used for fiber water repellent finishing. It is done.

  The amount of the water repellent used is not particularly limited, but is preferably about 0.5 to 10 parts by weight, and about 0.5 to 5 parts by weight with respect to 100 parts by weight of the sheet material. More preferably. Thereby, better water repellency can be obtained. Moreover, about a water-repellent treatment method, a well-known method can be used and it can carry out by spraying or coating.

  On the other hand, the hydrophilic sheet material 21 preferably has an official moisture content of about 3 to 20%, and more preferably about 5 to 15%.

  Here, the official moisture content is the moisture content of the fiber in an environment of a temperature of 20 ° C. and a humidity of 65% RH. The higher the official moisture content of the fiber, the higher the water absorbency (hygroscopicity) of the fiber.

  When the official moisture content of the hydrophilic sheet material 21 is within the above range, the sheet material 21 has sufficient water absorption and strength necessary for configuring the mask body 40.

  The fibers constituting the sheet material 21 include natural fibers such as wool, silk thread, linen and cotton thread, fibers made of a water-absorbing polymer such as polyacrylic polymer fibers, and synthetic fibers having water-absorbing properties such as hollow fibers. The mixed fiber which combined 1 type, or 2 or more types of these can be used. Among these, as the sheet material 21, those mainly composed of natural fibers are preferable. Since the natural fiber has high hydrophilicity, the sheet material 21 can be given high water absorption.

  Examples of the sheet material 21 include a woven fabric, a nonwoven fabric, and a knitted fabric, but a woven fabric such as gauze is preferable.

  The method for bonding the hydrophobic sheet material 11 and the hydrophilic sheet material 21 as described above is not particularly limited. For example, adhesion with a hot melt adhesive, ultrasonic fusion, etc. However, it is preferable in that the sheet materials can be firmly bonded to each other.

  The hot melt adhesive is not particularly limited, and conventionally known adhesives can be used. Examples of such hot melt adhesives include, for example, an ethylene-propylene copolymer system, a propylene-1-butene copolymer system, an ethylene-1-butene copolymer system, and a homopolypropylene copolymer mainly composed of amorphous polyolefin. Hot melts such as polymer systems and olefin copolymer systems such as EVA (ethylene-vinyl acetate copolymer), EVOH (ethylene-vinyl alcohol copolymer), and EEA (ethylene-ethyl acrylate copolymer) An adhesive is mentioned.

  Further, the hot melt adhesive may contain other low molecular weight components such as other thermoplastic resins and waxes as necessary.

  As an adhesion method, for example, a hot melt adhesive heated using a hot melt gun or a hot melt applicator is applied to a non-woven fabric, and the applied surface is attached so as to be in contact with the surface of a necessary portion of the mask body. Etc. are suitable.

  The ultrasonic fusion method is not particularly limited, but usually, vibrations of 10 kHz or more are applied to the fusion part.

  The hydrophobic sheet material 11 and the hydrophilic sheet material 21 may be sewn, for example, instead of the method of bonding.

  Such a mask main body 40 preferably has an average thickness of about 0.1 to 10 mm, and more preferably about 0.5 to 5 mm. When the average thickness of the mask main body 40 is within the above range, the mask main body 40 can exhibit an original function of the mask such as dust prevention and can obtain air permeability sufficient to release moisture.

  Further, an additional value member that gives a specific added value to the mask may be provided in the mask body 40. Examples of the value-added member include a filtering member that filters air during breathing, and an aromatic member that emits a pleasant scent such as herbs. The added value given to the mask by the added value member is not particularly limited.

  The strings (fixing means) 12 are attached to both ends of the mask main body 40 in the left-right direction.

  The string 12 has an annular shape, and the mask body 40 is fixed to a desired location on the face by placing the annular string 12 on the ear.

  In place of the string 12 shown in FIG. 1, the fixing means may be constituted by, for example, an annular rubber string that is hooked on the ear, a string that is clung to the head, or a vine-shaped eyeglass that is applied to the upper part of the ear. it can.

  In the mask 10 as described above, since the face side is hydrophobic and the opposite face is hydrophilic, the fiber does not hold moisture such as breath and sweat on the face side, so it feels smooth. In addition, moisture actively escapes to the opposite side and is released to the outside of the mask. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good.

Second Embodiment
FIG. 3 is a cross-sectional view showing a second embodiment of the mask of the present invention.

  Hereinafter, although the second embodiment will be described, the description will focus on the differences from the first embodiment, and the description of the same matters will be omitted.

  In the second embodiment, instead of the hydrophobic sheet material of the first embodiment, a sheet material 11a provided with a portion 11b having hydrophobicity on the face side and hydrophilicity on the opposite side of the face is used. Except for this, the second embodiment is the same as the first embodiment.

  That is, the sheet material 11a is formed by applying a hydrophilic treatment to the surface of the hydrophobic sheet material opposite to the face to form a hydrophilic portion 11b. And as shown in FIG. 3, the mask main body 40 can be obtained by bonding together the part 11b which has hydrophilic property, and the sheet material 21 which has hydrophilic property so that it may contact.

  Examples of the treatment for imparting hydrophilicity include a method for imparting a hydrophilic treatment agent, a method for exposing to plasma, and a method for irradiating a laser. By performing such treatment, hydrophilicity can be imparted to one surface of the hydrophobic sheet material.

  Among these, the hydrophilic treatment agent is not particularly limited, but for example, a surfactant having a hydrophilic portion and a hydrophobic portion in the molecule or a hydrophilic polymer may be used. Moreover, not only one type of treatment agent but also a surfactant and a hydrophilic polymer may be used in combination, or a blending system of a treatment agent having strong hydrophilicity and a treatment agent having poor hydrophilicity may be used.

  Examples of the surfactant include conventionally known nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants (excluding silicon-based and fluorine-based surfactants).

  Specific examples of the nonionic surfactant include, for example, aliphatic alcohol (carbon number 8 to 24) alkylene oxide (carbon number 2 to 8) adduct (degree of polymerization = 1 to 100) [lauryl alcohol ethylene oxide addition ( Polymerization degree = 20), etc.], polyoxyalkylene (carbon number 2-8, polymerization degree = 1-100) higher fatty acid (carbon number 8-24) ester [polyethylene glycol monostearate (polymerization degree = 20), etc.] , Polyvalent (divalent to 10-valent or higher) alcohol fatty acid (carbon number 8 to 24) ester [sorbitan palmitic acid (mono / di) ester, etc.], polyoxyalkylene (carbon number 2 to 8, polymerization degree = 1) To 100) polyvalent (divalent to 10-valent or higher) alcohol higher fatty acid (8 to 24 carbon atoms) ester [polyoxyethylene (degree of polymerization = 10) Bitane lauric acid (mono / di) ester, etc.], fatty acid alkanolamide [1: 1 type coconut oil fatty acid diethanolamide, etc.], polyoxyalkylene (carbon number 2-8, degree of polymerization = 1-100) alkyl (carbon number 1 -22) phenyl ether (polyoxyethylene (polymerization degree = 20) nonylphenyl ether, etc.), polyoxyalkylene (carbon number 2-8, polymerization degree = 1-100) alkyl (carbon number 8-24) amino ether and alkyl (C8-C24) Dialkyl (C1-C6) amine oxide [lauryl dimethylamine oxide etc.], polydimethylsiloxane polyoxyethylene adduct, polyoxyethylene / polyoxypropylene block polymer (weight average molecular weight = 150- 10,000).

  Examples of the anionic surfactant include hydrocarbon ether carboxylic acids having 8 to 24 carbon atoms or salts thereof, [polyoxyethylene (polymerization degree = 1 to 100) sodium lauryl ether acetate, etc.], carbonization having 8 to 24 carbon atoms. Hydrogen sulfate salt [sodium lauryl sulfate], hydrocarbon sulfonate having 8 to 24 carbon atoms [sodium dodecylbenzenesulfonate, etc.] and hydrocarbon phosphate ester salt having 8 to 24 carbon atoms [polyoxyethylene (Polymerization = 1-100) Sodium lauryl ether phosphate, etc.] Fatty acid salt [sodium laurate, triethanolamine laurate, etc.], acylated amino acid salt [coconut oil fatty acid methyl taurine sodium, etc.], others [polysulfosuccinate poly Oxyethylene (degree of polymerization = 1-100) lauroylethanolamide 2 Potassium, etc.], and the like.

  Examples of cationic surfactants include quaternary ammonium salt types [stearyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, ethyl sulfate lanolin fatty acid aminopropylethyl dimethyl ammonium, etc.], amine salt types [diethylaminoethylamide stearate lactate, Dilaurylamine hydrochloride, etc.].

  Amphoteric surfactants include betaine-type amphoteric surfactants [coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, lauryldimethylaminoacetic acid betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, laurylhydroxy Sulfobetaine, lauroylamidoethylhydroxyethylcarboxymethylbetaine hydroxypropyl sodium phosphate, etc.] and amino acid type amphoteric surfactants [sodium β-laurylaminopropionate, etc.].

  Examples of hydrophilic polymers include polyvinyl alcohol, starch and derivatives thereof, cellulose derivatives such as carboxymethylcellulose, methylcellulose, and hydroxyethylcellulose, carboxyl group-containing (co) polymers such as sodium polyacrylate, and JP-A-07-133423 and A hydrophilic polymer having a urethane bond or an ester bond described in JP-A No. 08-120041 and the like [for example, a polycaprolactone polyol and a polyether diol linked by a polyisocyanate] can be used. The hydrophilic polymer preferably contains 1 to 100 water-soluble groups mainly composed of an anionic group, a cationic group, an amphoteric group and / or a polyoxyethylene group described in the surfactant in the molecule. More preferably, the polymer can be made into a water-soluble or dispersible (emulsified or suspended) polymer by containing 2 to 50 polymers. The number average molecular weight of these hydrophilic polymers is preferably 2,000 to 1,000,000, more preferably 5,000 to 100,000. These hydrophilic polymers can be produced by known methods.

  The amount applied when using the hydrophilic treatment agent as described above varies depending on the type of fiber constituting the nonwoven fabric, but is preferably 0.01 to 5.0 parts by weight with respect to 100 parts by weight of the sheet material, More preferably, it is 0.1-2.0 weight part. Since the non-woven fabric may be in direct contact with the human body or animal skin, it is desirable to set it to the minimum necessary. If necessary, for example, it is also useful to treat only the surface, or to apply only to the necessary part of liquid permeation such as the central part of the nonwoven fabric.

  As a method for applying the hydrophilic treatment agent, a known method such as a dipping method, a spray method, a coating (roll coater, gravure coater, die, etc.) method can be adopted using a diluted treatment solution. Dry using a drying means such as hot air or hot roll. The drying temperature must be below the decomposition temperature and melting point of the nonwoven fabric material, but is preferably 10 to 130 ° C. The drying time is preferably shorter, but more preferably 1 minute to 5 hours.

In addition, the sheet material 11a may be obtained by performing a process of imparting hydrophobicity to one surface of a hydrophilic sheet material. In this case, as the treatment for imparting hydrophobicity, the above-described water repellent treatment or the like can be used.
Further, the sheet material 21 may be omitted.

<Third Embodiment>
FIG. 4 is a cross-sectional view showing a third embodiment of the mask of the present invention.

  In the following, the third embodiment will be described. The description will focus on the differences from the first and second embodiments, and the description of the same matters will be omitted.

As shown in FIG. 4, the mask 10 of the present embodiment is the first except that a patch 31 is arranged between the face and the mask body 40 ′ with the mask 10 mounted on the face. This is the same as the embodiment.
The mask body 40 ′ is made of a hydrophilic sheet material.

The application cloth 31 is made of a hydrophobic sheet material.
And, by placing the patch 31 between the face and the mask body 40 ', the face side of the patch 31 has a smooth feel because the fibers do not hold moisture such as breath and sweat, In addition, moisture actively escapes to the opposite side and is absorbed by the hydrophilic mask body 40 '. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good. In addition, by using a batter, it can be easily replaced when it is soiled, and is hygienic.

  As the hydrophilic sheet material, the above-described hydrophilic sheet material can be used, but in this embodiment, gauze is used.

  Further, the mask body 40 'preferably has an official moisture content of about 3 to 20%, more preferably about 5 to 15%. Thereby, the mask main body 40 'has sufficient water absorption.

  On the other hand, as the hydrophobic sheet material, the above-mentioned various hydrophobic sheet materials can be used, but in this embodiment, a nonwoven fabric is used.

  As the nonwoven fabric, the aforementioned nonwoven fabric can be used. Moreover, it can replace with a nonwoven fabric and can also use the hydrophobic sheet | seat material etc. which give the process which provides hydrophobicity like a water-repellent process to the sheet | seat material which does not have hydrophobicity.

The application cloth 31 has a moisture permeability of preferably 200 g / m ² · h or more, more preferably 250 g / m ² · h or more, and further preferably 350 g / m ² · h or more. Thereby, the mask wearer's discomfort by the humidity of the space produced between the patch 31 and the face becoming high can be prevented.

  Such an application cloth 31 preferably has an average thickness of about 0.1 to 5 mm, and more preferably about 0.5 to 3 mm. When the average thickness of the mask main body 40 ′ is within the above range, the mask main body 40 ′ can exhibit the original function of the mask such as dust proofing and can obtain air permeability sufficient to release moisture.

  In addition, the application cloth 31 may be stacked in a plurality of layers or folded so as to have an appropriate thickness.

<Fourth embodiment>
FIG. 5 is a sectional view showing a fourth embodiment of the mask of the present invention.

  Hereinafter, although the fourth embodiment will be described, the differences from the first to third embodiments will be mainly described, and the description of the same matters will be omitted.

  In the fourth embodiment, instead of the patch 31 of the third embodiment, a patch 31a having a hydrophobic portion 31b on the face side and a hydrophilic portion 31b on the opposite side of the face is used. Is the same as in the third embodiment.

  That is, the patch 31a is formed by applying hydrophilic treatment to the surface opposite to the face of the hydrophobic patch to form a hydrophilic portion 31b. Then, as shown in FIG. 5, the mask 10 can be obtained by overlapping the hydrophilic portion 31b and the hydrophilic mask body 40 'so as to contact each other.

  By making the face side hydrophobic in the batter 31a and making the opposite side hydrophilic, the fiber does not hold moisture such as breath and sweat on the face side of the batter 31a. Moreover, moisture actively escapes to the opposite side and is absorbed by the mask body 40 'made of gauze. Thereby, on the face side, a sticky feeling and a feeling of stuffiness due to body fluid remaining can be prevented, a dry feeling can be given to the wearer, and a feeling of use becomes good. In addition, by using a batter, it can be easily replaced when it is soiled, and is hygienic.

  Here, as the treatment for imparting hydrophilicity, the aforementioned treatments for imparting hydrophilicity can be used.

Moreover, the patch 31a may be formed by performing a treatment for imparting hydrophobicity to one surface of a hydrophilic sheet material. In this case, as the treatment for imparting hydrophobicity, the above-described water repellent treatment or the like can be used.

  Instead of the mask body 40 ', the mask body 40 of the first and second embodiments may be used. Thereby, the dry feeling of the mask user is improved.

<Fifth Embodiment>
FIG. 6 is a cross-sectional view and a plan view showing a fifth embodiment of the mask of the present invention.

  Hereinafter, although 5th Embodiment is described, it demonstrates centering around difference with the said 1st-4th embodiment, The description is abbreviate | omitted about the same matter.

  As shown in FIGS. 6A and 6B, the mask 10 of the present embodiment has a water-absorbing carrier 13 accommodated in a space formed inside the mask body 40 of the first embodiment. Except for this, it is the same as the first embodiment. Thereby, moisture can be avoided more efficiently from the face side. As a result, the wearer of the mask 10 can obtain a further dry feeling.

  The carrier 13 may be either porous or dense, but is preferably porous. Thereby, the surface area of the support | carrier 13 increases and the improvement of the water absorption (moisture absorption) performance can be aimed at.

  Further, the carrier 13 may be in any form of granular, lump (pellet), and block, but is preferably granular. Thereby, the surface area of the support | carrier 13 increases and the improvement of the water absorption (moisture absorption) performance can be aimed at.

  Furthermore, the carrier 13 is particularly preferably granular and porous. In such a carrier 13, the effect is further increased.

  Examples of the carrier 13 include calcium phosphate compounds such as hydroxyapatite, silicon compounds such as zeolite and silica gel, and among these, those mainly composed of calcium phosphate compounds are preferable. Since calcium phosphate compounds are excellent in hygroscopicity and adsorbability of viruses and fungi, such effects can be imparted to the mask.

  The carrier 13 may be mainly composed of a water-absorbing polymer. The water-absorbing polymer has particularly high water-absorbing performance, and can avoid moisture particularly efficiently from the face side. Examples of such a water-absorbing polymer include various water-absorbing polymers such as starch-based, cellulose-based, and synthetic polymers, and particularly starch-acrylic acid (salt) graft copolymers and saponified starch-acrylonitrile copolymers. Sodium carboxymethylcellulose cross-linked product and acrylic acid (salt) polymer are preferably used.

  As mentioned above, although the mask of this invention was demonstrated based on embodiment of illustration, this invention is not limited to these, Each structure can be substituted by the arbitrary things which can exhibit the same function. Alternatively, an arbitrary configuration can be added.

  For example, in each of the above-described embodiments, the case where the entire mask main body or the covering cloth is composed of a sheet material having hydrophobicity and hydrophilicity or a sheet material having hydrophobicity has been described as an example. The invention is not limited to this, and it is sufficient that at least the part that hits the mouth and nose is hydrophobic.

Hereinafter, specific examples of the present invention will be described.
1. Production of mask (Example 1)
A non-woven fabric (hydrophobic fabric) composed of polypropylene fibers and a gauze (hydrophilic fabric) composed of cotton yarn are attached with a hot-melt adhesive mainly composed of EVA, and FIG. 1 and FIG. A rectangular mask body as shown in FIG.

  Next, strings (fixing means) were attached to both ends of the mask body in the left-right direction to obtain a mask.

(Example 2)
As shown in FIG. 6, a mask was obtained in the same manner as in Example 1 except that hydroxyapatite (calcium phosphate compound) powder was disposed as a carrier between the hydrophobic nonwoven fabric and the gauze.

(Example 3)
A mask as shown in FIG. 3 was obtained in the same manner as in Example 1 except that the surface of the hydrophobic nonwoven fabric opposite to the face was subjected to a treatment for imparting polyvinyl alcohol.

Example 4
A hydrophobic patch was obtained from a nonwoven fabric composed of polypropylene fibers.

  Next, a string was attached to both ends of the mask main body composed of gauze in the left-right direction, and the gauze of the application cloth was overlapped so as to contact the mask main body to obtain a mask as shown in FIG.

(Example 5)
A mask as shown in FIG. 5 was obtained in the same manner as in Example 4 except that the surface opposite to the face of the patch was subjected to a treatment for applying polyvinyl alcohol.

(Example 6)
The mask body of Example 1 and the application cloth of Example 5 were prepared.

Subsequently, the mask main body and the covering cloth were overlapped so that the non-woven fabric of the mask main body and the surface of the covering cloth subjected to the treatment for applying polyvinyl alcohol were in contact with each other.
Then, strings (fixing means) were attached to both ends of the mask body in the left-right direction to obtain a mask.

(Comparative example)
A mask was obtained in the same manner as in Example 1 except that the mask body was composed of gauze composed of cotton yarn.

2. Evaluation 350 subjects were divided into 7 groups of 50 people each. Then, a total of seven types of masks for each of the examples and comparative examples were attached to each group of subjects one by one in three hours, and the user's comfort was evaluated.

  In addition, the masks to be mounted in each group were set so that the mounting order of the seven types of masks was random.

In addition, evaluation of the comfort of use was performed on each mask four times immediately after wearing, after 1 hour, after 2 hours, and after 3 hours.
The evaluation criteria for the comfort are as follows.

○: Good ×: Uncomfortable As described above, the results are shown in Table 1.

  As is clear from Table 1, in each of the masks of each of the examples, 80% or more of 300 subjects evaluated that “comfort was good” even after 3 hours had passed. In addition, the evaluations immediately after wearing and after 3 hours have hardly changed, indicating that a good feeling of use is maintained for a long time.

  In contrast, with the mask of the comparative example, 90% or more of the subjects evaluated as “good” immediately after wearing, but the ratio decreased to 60% after 1 hour and to 20% after 3 hours. . The cause of this discomfort was the discomfort of touching the wet mask when the mask was moistened by breathing.

It is a top view which shows 1st Embodiment of the mask of this invention. It is sectional drawing of the mask shown in FIG. It is sectional drawing which shows 2nd Embodiment of the mask of this invention. It is sectional drawing which shows 3rd Embodiment of the mask of this invention. It is sectional drawing which shows 4th Embodiment of the mask of this invention. It is sectional drawing and top view which show 5th Embodiment of the mask of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mask 11, 11a, 21 Sheet material 12 String 13 Carrier 31, 31a Dressing cloth 11b, 31b Hydrophilic part 40, 40 'Mask main body

Claims (17)

A mask used on the face,
A mask body, and a fixing means for fixing the mask body to a desired portion of the face,
The mask main body comprises a fabric having hydrophobicity on at least a surface that touches the face.   The mask according to claim 1, wherein the fabric is made of a nonwoven fabric.   The mask according to claim 1, wherein the fabric is mainly composed of polyolefin.   The mask according to any one of claims 1 to 3, wherein the fabric has hydrophilicity on a surface opposite to the face. The fabric is a hydrophobic fabric,
The mask according to any one of claims 1 to 3, wherein the mask body includes a hydrophilic fabric on the opposite side to the hydrophobic fabric.   The mask according to claim 5, wherein the hydrophilic fabric is mainly composed of natural fibers.   The mask according to any one of claims 4 to 6, wherein the official moisture content of the hydrophilic portion of the mask body is 3 to 20%. The mask according to any one of claims 1 to 7, wherein the hydrophobic portion of the mask body has a moisture permeability of 200 g / m ² · h or more.   The mask according to any one of claims 1 to 8, wherein the mask body has an average thickness of 0.1 to 10 mm.   The mask according to any one of claims 1 to 9, wherein a space is formed in the mask body, and a carrier having water absorption is accommodated in the space.   The mask according to claim 10, wherein the carrier is granular.   The mask according to claim 10 or 11, wherein the carrier is a porous body.   The mask according to any one of claims 10 to 12, wherein the carrier is mainly composed of a calcium phosphate compound.   The mask according to any one of claims 10 to 12, wherein the carrier is mainly composed of a water-absorbing polymer. With the mask on your face,
Furthermore, a patch cloth disposed between the face and the mask body is provided,
The mask according to any one of claims 1 to 14, wherein the cloth has hydrophobicity on the face that touches the face. A mask used on the face,
A mask body, a fixing means for fixing the mask body to a desired portion of the face, and a patch disposed between the face and the mask body with the mask attached to the face,
The mask is characterized in that the surface of the patch that touches the face has hydrophobicity. The mask according to claim 15 or 16, wherein the patch has a hydrophilic property on a surface opposite to the face.

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