JPWO2006046658A1 - Humidifier for body wearing - Google Patents

Abstract

Provided is a body-worn humidifier that includes a heating element that generates heat and water vapor when supplied with oxygen, and can apply a large amount of water vapor to the skin in a short time. The humidifying body 1 has a humidifying section 11, and the humidifying section 11 is provided with a heating element 31 composed of a heating base containing metal powder and moisture of 15% or more of the mass of the heating base. On the skin side of the heating element 31, a skin-side surface sheet 4 having a covering sheet 32 and a plurality of water vapor transmission holes 41 is provided. On the clothing side of the heating element 31, a non-breathable heat insulating layer 33 and a non-breathable non-skin-side surface sheet 5 are provided. The water vapor generated in the heating element 31 passes through the water vapor transmission holes 41 of the covering sheet 32 and the skin side surface sheet 4 and is given to the skin. The water vapor transmission holes 41 have an average opening diameter of 0.2 to 2 mm and are formed at a rate of 0.05 to 0.3 per 1 cm 2.

Description

  The present invention relates to a body-mounted humidifier that is attached to the face and other parts of the body to give water vapor to the skin.

  There exist a thing of patent documents 1 and patent documents 2 as a humidifier for body wearing which attaches to a body and gives water vapor to skin.

The humidifier for body mounting described in Patent Document 1 has a heating element containing metal powder, moisture, and salts. In this humidifying body, a heating element is housed in a moisture-permeable inner bag inside a moisture-permeable outer bag that allows oxygen and water vapor to pass therethrough. A temperature control material formed of woven fabric, non-woven fabric, paper, porous film, foamed plastic having perforations, etc. is interposed between the wet outer bag. Patent Document 1 moisture-permeable inner bag and the temperature regulating material that is described in, preferably in the amount of moisture permeation is 4000g ^/ m 2 · 24h or more and 8000g ^/ m 2 · 24h or more, the moisture-permeable inner bag, woven A cloth, nonwoven fabric, paper, synthetic paper, or a non-breathable film formed with micropores to be breathable is used.

  When this humidifier for body wearing is taken out from the sealed bag, oxygen is supplied to the heating element through the moisture-permeable outer bag, the temperature adjusting material, and the moisture-permeable inner bag, and the heating element generates heat by the oxidation reaction of the metal powder. Moisture in the body evaporates and becomes water vapor, which permeates the moisture-permeable inner bag, the temperature control material, and the moisture-permeable outer bag to moisturize the skin.

Further, the humidifier for body wearing described in Patent Document 2 has two substantially square heating elements, and a temperature adjusting material made of paper and non-woven fabric is superimposed on the surface of these heating elements, and these are further transparent. Housed in an outer bag of wet nonwoven fabric. This humidifier for body wearing is to be worn on the face so that the two heating elements are applied to both eyes. In Patent Document 2, the moisture permeability of the bag for accommodating the heating element is less than 10000 g ^/ m 2 · 24h with 1000 g ^/ m 2 · 24h or more.
Japanese Patent Laid-Open No. 11-342147 JP 2002-78728 A

The invention described in Patent Document 1, moisture permeation of the bag which covers the heating element 4000 g ^/ m 2 · 24h or more, or at 8000 g ^/ m 2 · 24h or more, in the invention described in Patent Document 2, a heating element moisture permeation amount of the bag covering is less than 10000g ^/ m 2 · 24h at 1000g ^/ m 2 · 24h or more.

However, if the moisture permeation of the bag which covers the heating element is ^{4000g / m 2 · 24h~10000g / m} 2 · 24h about the case that caused a lot of water vapor at a time in the heating element is outside the steam In some cases, it is difficult to make it flow out quickly. For example, let's make a humidifier for body wearing that has a high humidifying effect by adding moisture of 15% or more of its mass to the heating element and giving the skin water vapor of 0.01 g / cm ² or more for 20 minutes. Then, with the moisture permeability like the inner bag, the water vapor permeability is too bad, and the bag accumulates water vapor inside and swells like a balloon, making it difficult to efficiently supply water vapor to the skin.

Moreover, the thing of patent document 1 and patent document 2 is based on the structure where both surfaces of a heat generating body are covered with a bag, and the water vapor | steam which generate | occur | produces with a heat generating body is discharge | released from both surfaces. Therefore, if the amount of water vapor generated per unit time in the heating element is small, it may be possible to gradually flow out water from both surfaces using a bag. However, in the case where the water vapor of 0.01 g / cm ² or more can be allowed to flow out only for 20 minutes on the skin side surface and the water vapor does not flow from the non-skin side surface, It becomes easy to swell like a balloon.

  The present invention solves the above-mentioned problems of the prior art, can supply a lot of water vapor per unit time to the skin, and even if the heating element generates a lot of water vapor, An object of the present invention is to provide a body-mounted humidifier that does not form a bulge.

The present invention comprises a heating element that generates heat and generates water vapor from the moisture when it contains moisture and oxygen, and the skin-side surface facing the skin and the non-skin-side surface opposite to the skin-side surface In a body-worn humidifier having
The heating element is between the skin-side surface and the non-skin-side surface, the surface near the skin-side surface is covered with a moisture-permeable sheet that allows water vapor to pass through, and the surface near the non-skin-side surface contains water vapor. It is covered with a non-breathable non-permeable sheet,
In the moisture permeable sheet, water vapor transmission holes having an average hole diameter of 0.2 to ² mm are uniformly formed in a range of 0.05 to 0.3 per 1 cm ^{2 in} the entire region covering the heating element. The amount of water vapor released from the heating element until the elapse of 20 minutes after the heating element starts to generate heat is 0.01 g / cm ² or more.

In one embodiment of the present invention, the moisture permeable sheet has a moisture permeability of 10,000 g / m ² · 24 h or less in a state where the water vapor permeable holes are not formed.

In another embodiment, the heating element includes a heating base that generates heat when oxygen is given thereto, and water that is 15% or more of the mass of the heating base.
In another embodiment, the heating base is powdery.

  Furthermore, in another one of the embodiments of the present invention, the humidifier is provided with a sheet separate from the moisture-permeable sheet between the heating element and the skin side surface of the humidifier. The separate sheet has a higher moisture permeability than the moisture-permeable sheet. That is, on the skin side of the humidifier, the amount of water vapor supplied from the heating element is controlled by the moisture permeable sheet.

  The moisture-permeable sheet may be provided on the outermost side of the humidifying body as long as it is on the skin side of the heating element, or may be provided on the inner side.

The humidifying body for body wearing of the present invention is such that the skin side of the heating element is covered with a moisture permeable sheet, the non-skin side of the heating element is covered with a moisture permeable sheet, and water vapor generated in the heating element is generated only from the skin side surface. It flows out concentratedly and is supplied to the skin, so that it does not flow out from the non-skin side surface. Therefore, with this humidifier, water vapor can be concentrated on the skin side. Further, the heating element contains 15% or more of moisture of its mass, generates a large amount of water vapor of 0.01 g / cm ² or more in 20 minutes after the heating element starts to generate heat, and a large amount of water vapor on the skin. Can be supplied. In this way, the humidifier can supply a large amount of water vapor from the skin side surface toward the skin in a short time, while using the moisture-permeable sheet having water vapor permeation holes, Water vapor can be efficiently supplied to the skin without accumulating inside and swelling.

The front view which shows the humidifier for body mounting of embodiment of this invention from the skin side surface. Sectional drawing of the II-II line | wire of FIG. The exploded sectional view showing the component of the humidifier for body wearing. The exploded sectional view showing the component of the humidifier for body wearing which is an example of an embodiment. The partially expanded sectional view of FIG. The expanded sectional view of a skin side surface sheet. The front view in the state with which the humidifier for body mounting | wearing was mounted | worn on the face. The side view in the state where the humidification body for body wearing was equipped on the face.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Humidifier for body wearing 2 Skin side surface 3 Non-skin side surface 4 Skin side surface sheet (moisture permeable sheet)
5 Non-skin-side surface sheet (non-breathable sheet)
DESCRIPTION OF SYMBOLS 11 Right inner humidification part 12 Left inner humidification part 13 Right outer humidification part 14 Left outer humidification part 15 Thin sheet part 16 Center deformation part 17 Right deformation part 18 Left deformation part 21,22,23,24 Dividing line 27 Ventilation part 31 Heat generation Body 32 Cover sheet 33 Non-breathable heat insulating layer (non-breathable sheet)
38 Oxygen diffusion sheet 41 Water vapor transmission hole

  FIG. 1 is a front view showing a humidifier for body wearing according to an embodiment of the present invention with the skin-side surface sheet facing forward, and FIG. 2 is a cross-sectional view of the humidifier for body wearing shown in FIG. 3 and FIG. 4 are partially exploded cutaway views of the humidifying body showing the structure of the humidifying body for body wearing according to the embodiment, and FIG. 5 is an enlarged partial cross-sectional view enlarging a part of FIG. 6 is an enlarged cross-sectional view of a skin-side surface sheet formed of a moisture-permeable sheet, and FIGS. 7 and 8 are diagrams illustrating an example in which the humidifier for body wearing is applied to the face.

  In the humidifying body 1 shown in FIG. 1, the side facing forward in FIG. 1 and the side facing upward in FIG. 2 are the skin side surface 2, and the opposite side is the non-skin side surface 3. It is. The humidifier 1 for body wearing according to this embodiment is for wearing the skin side surface 2 toward the skin of the body. About the directionality of each member which comprises this humidifier 1 for body wearing, the side facing the skin like the skin side surface 2 is called the skin side, and it is opposite to the skin side like the non-skin side surface 3. The side is called the non-skin side.

  As shown in FIGS. 7 and 8, the humidifier 1 for body wearing is made to have a size that can cover almost half of the face area. The length dimension in the direction along the center line OO is at least 80 mm, more preferably at least 100 mm, and the maximum value is, for example, 180 mm so as to cover at least the bottom of the adult eye to the mouth. Moreover, the width dimension in the direction orthogonal to the center line OO is 150 mm or more, preferably 200 mm or more so that both adult cheeks can be covered simultaneously, and the maximum value is, for example, 320 mm.

  As shown in FIG. 1, the humidifier 1 for body wearing is symmetrical with respect to a center line OO extending in the vertical direction. The upper edge 6 of the humidifier 1 for body wearing is an edge located on the upper side when worn on the face as shown in FIGS. The lower edge 7 on the side facing the upper edge 6 is an edge located on the lower side when the humidifier 1 for body wearing is attached to the face.

  The humidifier 1 for body wearing in FIG. 1 has a right inner humidified portion 11 formed on the right side of the center line OO, and a left inner humidified portion 12 formed on the left side of the center line OO. A right outer humidifying unit 13 is formed on the right side of the right inner humidifying unit 11, and a left outer humidifying unit 14 is formed on the left side of the left inner humidifying unit 12.

  The right inner humidification unit 11 is an area surrounded by a partition line 21. The lane marking 21 has an inner straight line portion 21a parallel to the center line OO and an outer straight line portion 21b inclined with respect to the center line OO, and further an upper line portion that draws a upward curve. 21c and a lower line portion 21d that draws a downward projecting curve. The left inner humidification unit 12 is an area surrounded by a lane marking 22. The partition line 22 also has an inner straight part 22a parallel to the center line OO, an outer straight part 22b inclined with respect to the center line OO, an upper line part 22c, and a lower line part 22d. ing.

  The right outer humidification unit 13 is an area surrounded by a lane marking 23. The lane marking 23 has a straight line portion 23a parallel to the outer straight line portion 21b and a curved line portion 23b other than the straight line portion 23a. Similarly, the left outer humidification part 14 is an area surrounded by a partition line 24. The partition line 24 has a straight line part 24a parallel to the outer straight line part 22b and a curved part 24b other than the straight line part 24a.

  The right inner humidifying unit 11 and the left inner humidifying unit 12 are symmetrical with respect to the center line OO. Moreover, the right outer side humidification part 13 and the left outer side humidification part 14 are left-right symmetric about the centerline OO.

  A heating element is not provided in a region other than the right inner humidifying portion 11, the left inner humidifying portion 12, the right outer humidifying portion 13 and the left outer humidifying portion 14 of the humidifier 1 for body wearing. This is a thin sheet portion 15 that does not have a function of generating water vapor. In the thin sheet portion 15, the constituent members other than the heating element 31 in the humidifying body 1 are pressurized and welded together. The right inner humidifier 11, the left inner humidifier 12, the right outer humidifier 13, and the left outer humidifier 14 are all surrounded by the thin sheet portion 15.

  As shown in FIG. 1, a central deformation portion 16 is formed by a thin sheet portion 15 at a portion sandwiched between the inner straight portion 21 a and the inner straight portion 22 a and extending along the center line OO. Further, a right deformed portion 17 is formed by the thin sheet portion 15 at a portion sandwiched between the outer straight portion 21b and the straight portion 23a. Similarly, a left deformed portion 18 is formed by the thin sheet portion 15 at a portion sandwiched between the outer straight portion 22b and the straight portion 24a.

  A ventilation portion 27 is formed in the central deformation portion 16 of FIG. In this embodiment, the ventilation portion 27 is formed by cutting out the thin sheet portion 15 forming the central deformation portion 16 so as to penetrate from the skin side surface 2 to the non-skin side surface 3.

  As shown in FIGS. 2 and 3, a heating element 31 is provided inside the right inner humidifier 11, the left inner humidifier 12, the right outer humidifier 13, and the left outer humidifier 14. The heating element 31 includes, as its constituent elements, easily oxidizable metal powder such as iron, aluminum, and zinc, water, and salts for oxidizing the metal powder. The salts include sodium chloride, potassium chloride, calcium chloride, magnesium chloride and the like. Furthermore, in order to promote the oxidation of the metal powder, a carbon material such as activated carbon, carbon black, or graphite may be included. Furthermore, a moisturizing agent such as vermiculite, calcium silicate, silica gel, or silica may be included so that moisture can be retained for a long time. As water and salts, the heat generating substrate formed of metal powder, carbon material, humectant, etc. can contain 15% or more and 50% or less of salt water of the mass of the heat generating substrate.

  When oxygen is given to the heating element 31, the metal powder is oxidized, and the heating element 31 and its surroundings rise to about 80 ° C. or higher by the oxidation heat at that time. Due to this oxidation heat, water in the heating element 31 evaporates and water vapor is generated. Since the heating element 31 contains salt water in a range of 15% to 50%, a large amount of water vapor can be generated per unit time when heat generation starts.

  The heating base of the heating element 31 is an aggregate of powders such as metal powders, and the powders are not particularly agglomerated. However, as a heat generating substrate, an aggregate of powder is pressed with a roller and agglomerated into a sheet shape, which includes a resin material, an adhesive, fibers, etc. for maintaining the sheet shape Can also be used.

  In the embodiment shown in FIG. 2 and FIG. 3, a covering sheet 32 is provided between the skin-side surface sheet 4 and the heating element 31, and the covering sheet 32 forms metal powder that constitutes the heating element 31. It is made possible to prevent the powder from moving to the top sheet 4.

  The skin-side surface sheet 4, the non-skin-side surface sheet 5, the covering sheet 32, and the moisture-impermeable heat insulating layer 33 have the same shape and area as the entire shape and area of the body-mounted humidifier 1. The skin side surface sheet 4, the non-skin side surface sheet 5, the covering sheet 32, and the non-transparent region are areas other than the right inner humidifying unit 11, the left inner humidifying unit 12, the right outer humidifying unit 13, and the left outer humidifying unit 14. The thin heat insulating layer 33 is in close contact with the thin sheet portion 15. In this embodiment, as shown in FIG. 5, a plurality of embossed portions 35 are formed in the thin sheet portion 15, and each component excluding the heating element 31 is mainly pressurized and heated in this embossed portion 35 to be welded. Has been. As shown in FIG. 1, the embossed portion 35 forms a lattice pattern.

  The skin side surface sheet 4 is breathable and moisture permeable. Furthermore, the covering sheet 32 is also breathable and moisture permeable. On the other hand, the non-skin-side surface sheet 5 and the non-moisture permeable heat insulating layer 33 are both non-breathable and non-breathable sheets.

  The air permeability in the present specification means a property that allows air containing oxygen to pass therethrough, and the non-air permeability means a property that does not allow air to pass through. The moisture permeability means a property that allows water vapor to pass therethrough, and the non-moisture permeability means a property that does not allow water vapor to pass therethrough.

  In addition, the heat insulating layer in this specification means that the temperature of the second surface, which is the surface on the opposite side of the first surface from the temperature of the first surface facing the heating element 31 in this heat layer. In a preferred embodiment, when the temperature of the first surface is 50 ° C. or higher, the temperature of the second surface is 20 ° C. lower than the temperature of the first surface. Used as a heat insulating layer.

As shown in an enlarged view in FIG. 6, the skin-side surface sheet 4, which is a moisture-permeable sheet of the present invention, has a plurality of water vapor transmission holes 41 formed in a resin film such as polyethylene, polypropylene, and ethylene / vinyl acetate copolymer. It is a thing. The resin film has a moisture permeability of 10,000 g / m ² · 24 h or less in a state where the water vapor permeable holes 41 are not formed. This moisture permeation amount is a measured value at a temperature of 40 ° C. and a relative humidity of 90% measured based on JIS-Z0208.

The resin film illustrated in FIG. 6 is stretched in a state in which an inorganic filler is mixed therein to form air holes 42 that allow air to pass through, but the moisture permeability is 10,000 g. / M ² · 24h or less. Instead of the resin film shown in FIG. 6, it is also possible to use a substantially non-breathable resin film in which the micropores 42 are not formed. A resin film having a moisture permeability of a specified value or less or a non-breathable resin film is generally used and can be obtained at low cost.

  The water vapor transmission holes 41 in the moisture permeable sheet in which a plurality of water vapor transmission holes 41 are formed in a film that is an example of the skin-side surface sheet 4 can be formed by hot embossing or needling, It is preferable that the entire region covering 12, 13, and 14 is regularly arranged at an equal pitch and the same aperture area ratio.

The water vapor transmission hole 41 has an average opening diameter of 0.2 to 2 mm, and is in a range of 0.05 to 0.3 per 1 cm ² in the entire region covering the skin side in each of the humidifying parts 11, 12, 13 and 14. It is preferable that they are uniformly formed. When the water vapor transmission hole 41 is formed with such an opening diameter and an opening area ratio, a large amount of water vapor generated in a short time in the heating element 31 can be quickly discharged to the skin side surface 2, and the inside of the humidifying body 1 It is possible to prevent the occurrence of a phenomenon that water vapor accumulates and swells. In addition, the said average hole diameter is an average value of the largest value of an internal diameter, and the smallest value of an internal diameter, when each water vapor permeation | transmission hole 41 is a long hole, for example. The same applies to the case where the water vapor transmission hole 41 is not a long hole, and is an average value of the largest value of the inner diameter and the smallest value of the inner diameter.

  Examples of the covering sheet 32 include heats such as PP fiber, PET fiber, PE fiber, composite synthetic fiber of PP and PE, composite synthetic fiber of PET and low melting point PET, and composite synthetic fiber of PP and low melting point PP. It is a thermoplastic wet nonwoven fabric made by mixing fusible fibers with natural fibers and recycled fibers. As this covering sheet 32, a sheet having a sufficiently higher moisture permeability than the skin side surface sheet 4 is used, and the amount of oxygen supplied to the heating element 31 and the amount of water vapor flowing out to the skin side surface 2 are mainly used. In addition, the skin side surface sheet 4 is controlled. The covering sheet 32 only needs to have a higher moisture permeability than the skin-side surface sheet 4, and is not limited to the thermoplastic wet nonwoven fabric, but may be other nonwoven fabrics such as a spunbond nonwoven fabric.

  The non-skin-side surface sheet 5 in the illustrated example is a non-breathable and moisture-impermeable resin film formed of polyethylene resin or the like on the inner surface of a nonwoven fabric 5a formed by an air raid method, a spun bond method, a point bond method, or the like. 5b is laminated and constituted. The non-moisture permeable heat insulating layer 33 is a foamed polyethylene resin sheet or a foamed urethane resin sheet that does not have openings, and independent bubbles are scattered inside. The thickness dimension of the moisture-impermeable heat insulating layer 33 is about 0.5 to 4 mm, preferably about 0.5 to 2 mm. As described above, the non-skin-side surface sheet 5 and the non-moisture permeable heat insulating layer 33 are both non-moisture permeable sheets. The layer 33 can be replaced with a moisture-permeable layer.

  FIG. 4 shows a layer structure of a humidifier 1A for body wearing according to another embodiment. In this humidifier for body wearing 1A, a breathable and moisture permeable oxygen diffusion sheet 38 is interposed between the covering sheet 32 and the skin side surface sheet 4 which is a moisture permeable sheet. The oxygen diffusion sheet 38 is a non-woven fabric in which synthetic resin fibers are bonded by a through-air method, or a spunlace non-woven fabric in which fibers are entangled by a water jet process. The oxygen diffusion sheet 38 has a higher moisture permeability than the skin side surface sheet 4, and the amount of oxygen supplied to the heating element 31 and the amount of water vapor released to the skin side surface 2 are mainly controlled by the skin side surface sheet 4. Has been.

  The oxygen diffusion sheet 38 has an oxygen passage path smaller than the water vapor transmission holes 41 of the skin-side surface sheet 4, and the number of passage paths per unit area is sufficiently larger than the number of water vapor transmission holes 41 per unit area. Many are formed. Therefore, oxygen that has passed through the water vapor transmission holes 41 of the skin-side surface sheet 4 is diffused by passing through the oxygen diffusion sheet 38 and given to the covering sheet 32. Therefore, oxygen can be supplied evenly to the portion of the heating element 31 located immediately below the region between the water vapor transmission hole 41 and the water vapor transmission hole 41 in the skin side surface sheet 4.

  The humidifying body 1 for body wearing is enclosed in a sealed bag formed of a non-breathable resin film that does not transmit oxygen before use.

  During use, when the sealed bag is opened and the body-mounted humidifier 1 is taken out, the heating element 31 provided in the right inner humidifier 11, the left inner humidifier 12, the right outer humidifier 13, and the left outer humidifier 14. Oxygen is supplied to the metal powder, and the metal powder undergoes an oxidation reaction. Moisture contained in the heating element 31 is evaporated by the heat of oxidation at that time to generate water vapor.

  Oxygen passes through the water vapor transmission holes 41 of the skin-side surface sheet 4 and the covering sheet 32 and is supplied from the skin-side surface 2 to the heating element 31, but the non-skin-side surface sheet 5 and the moisture-impermeable heat insulating layer 33. Is non-breathable, oxygen is hardly supplied from the non-skin side surface 3 to the heating element 31.

  The heating element 31 contains not less than 15% and not more than 50% salt water of the mass of the heating base and can reach a temperature of 80 ° C. or higher due to oxidation heat, so that a large amount of water vapor is generated in a short time. Water vapor generated in the heating element 31 is prevented from flowing out from the non-skin-side surface 3 by the moisture-impermeable heat insulating layer 33 and the resin film 5b of the non-skin-side surface sheet 5, and the covering sheet 32 and the skin-side surface sheet It flows out only from the skin side surface 2 through the water vapor transmission hole 41 of 4.

  The skin-side surface sheet 4 has a water vapor transmission hole 41, and the water vapor transmission hole is formed in the entire region covering the right inner humidification unit 11, the left inner humidification unit 12, the right outer humidification unit 13, and the left outer humidification unit 14. 41 are regularly formed at the same pitch and the same hole area ratio. Therefore, the water vapor generated in the heating element 31 flows out uniformly from the entire humidifying parts 11, 12, 13, 14 on the skin-side surface 2.

The amount of water vapor generated in the heating element 31 and flowing out through the skin side surface sheet 4 is 0.01 g / cm ² or more in total until 20 minutes elapses after the heating element 31 starts to generate heat. Therefore, since it is preferably 0.02 g / cm ² or more, and more preferably 0.025 g / cm ² or more, a sufficiently high effect can be exhibited for heating and moisturizing the skin. In addition, since the skin-side surface sheet 4 has a plurality of water vapor transmission holes 41, water vapor generated in a short time inside each humidifying part 11, 12, 13, 14 passes through the water vapor transmission holes 41. And since it flows out of the skin side surface 2 rapidly, each humidification part 11, 12, 13, 14 does not swell.

  Moreover, although the temperature of the heating element 31 can be around 80 ° C. or higher, the water vapor generated by the heating element 31 passes through the covering sheet 32 and further passes through the water vapor transmission holes 41 of the skin-side surface sheet 4. The skin-side surface of the skin-side surface sheet 4 can be about 60 ° C.

  FIG. 7 is a front view when the body-mounted humidifying body 1 is mounted on the face of the body, and FIG. 8 is a side view at that time.

  The humidifying body 1 for body wearing is easily bent at the central deformation portion 16 between the right inner humidifying portion 11 and the left inner humidifying portion 12, and further on the right side between the right inner humidifying portion 11 and the right outer humidifying portion 13. The deformed portion 17 and the left deformed portion 18 between the left inner humidified portion 12 and the left outer humidified portion 14 are also easily bent.

  Therefore, each of the right inner humidifying unit 11, the left inner humidifying unit 12, the right outer humidifying unit 13, and the left outer humidifying unit 14 can come into contact with the skin of the face independently without being restrained. The humidifiers 11, 12, 13, and 14 are well adapted to.

  In addition, the central deforming portion 16 is opened with a ventilation portion 27 extending vertically. If the ventilation portion 27 is matched with the nostril, and more preferably matched with the mouth, the wearer can easily breathe and does not feel stuffy.

  The illustrated body-mounted humidifier 1 has been described as having a shape suitable for mounting on the face, but the body-mounted humidifier according to the present invention is mounted at a location other than the face. Also good.

  Moreover, the outer surface of the skin-side surface sheet 4 that is a moisture-permeable sheet may be covered with a non-woven fabric or other heat insulating layer having a higher moisture permeability than the skin-side surface sheet 4.

(1) Example A
A polyethylene resin film that has been stretched and contains an inorganic filler and has a moisture permeability of 10,000 g measured at a temperature of 40 ° C. and a relative humidity of 90% based on JIS-Z0208 without forming the water vapor transmission holes 41. The water vapor transmission holes 41 having a circular shape and a diameter of 0.5 mm are regularly arranged to have a density (perforation area ratio) of 0.1 per 1 cm ² with respect to the one of / m ² · 24 h. The skin side surface sheet 4 was used.

An airlaid nonwoven fabric formed of pulp fibers and having a basis weight of 45 g / m ² is used as the nonwoven fabric 5a constituting the non-skin-side surface sheet 5, and a non-breathable resin film 5b is a polyethylene resin film having a basis weight of 19 g / m ² Was used.

As the covering sheet 32, 60% by weight of pulp (NBKP having a beating degree of 570 cc when measured with a PU-501 Canadian freeness tester manufactured by Tester Sangyo Co., Ltd.), a 40% by weight fineness of 1.7 dtex and a fiber length of A thermoplastic nonwoven fabric obtained by dispersing 7 mm PE and PP composite synthetic fiber in water in a papermaking tank and making two layers with a circular yankee drum was used. The basis weight of the nonwoven fabric was 30 g / m ² .

  As the non-moisture permeable heat insulating layer 33, a foamed polyethylene sheet having a foaming ratio of 30 times, a thickness of 1 mm, and no through-holes were used.

The heating base of the heating element 31 includes iron powder, activated carbon, vermiculite, and wood powder, and is not subjected to pressure treatment for agglomerating the iron powder, and has a total mass of 42 g and a basis weight of 2800 g / m ² . I used something. A heating element 31 in which salt water corresponding to 20% of the mass of the heating base was uniformly contained in this heating base was used.

  The sheets were stacked with the heating element 31 interposed therebetween, and the thin sheets 15 were formed by heat-sealing the sheets by embossing to obtain the humidifier of the example.

(2) Example B
A structure having the same structure as that of Example A except that only the skin side surface sheet 4 was replaced was manufactured. In Example B, it was a polyethylene resin film stretched with an inorganic filler, and was measured at a temperature of 40 ° C. and a relative humidity of 90% based on JIS-Z0208 without forming the water vapor transmission holes 41. About the thing of moisture permeability of 4000 g / m < ² > * 24h, the same water vapor transmission hole 41 as the skin side surface sheet of Example A was formed, and it was set as the skin side surface sheet.

(3) Comparative Example A
A structure having the same structure as that of Example A except that only the skin side surface sheet 4 was replaced was manufactured. Although it is the same resin film as Example A, the humidification body as a comparative example was obtained by using what does not form the water vapor permeable hole 41 as a skin side surface sheet.

(4) Comparative Example B
A structure having the same structure as that of Example A except that only the skin side surface sheet 4 was replaced was manufactured. Although it is the same resin film as Example B, the humidification body as a comparative example was obtained by using what does not form the water vapor transmission hole 41 as a skin side surface sheet.

(5) Measurement of water vapor generation amount An electronic balance is placed in a constant temperature and humidity chamber, and a polystyrene foam plate is placed in the measurement part of the electronic balance. The humidifying body of the example or the comparative example is taken out from the sealed bag, and the humidifying body of the example or the comparative example is placed on the expanded polystyrene plate immediately after oxygen is started to be supplied to the heating element. At this time, the humidification body of an Example or a comparative example turns the skin side surface to a polystyrene foam.

  Immediately after placing the humidifier, the initial measured mass (P1) by the electronic balance is read. At the same time, time measurement is started with a stopwatch. After 5 minutes, the measured mass (P2) of the electronic balance is read. Similarly, the measured mass (P3) is measured after 10 minutes, and the measured mass (P4) is measured after 15 minutes. And after 20 minutes, the measured mass (P5) is read.

The difference between P1 and P2 divided by the area of the skin-side surface sheet 4 covering the heating element 31 (the area of the humidified portion) is the amount of water vapor generated per unit area (g / cm after 0 to 5 minutes) ² ). Similarly, the amount of water vapor generated per unit area (g / cm ² ) when 5 to 10 minutes elapses from the difference between P2 and P3, and per unit area when 10 to 15 minutes elapses from the difference between P3 and P4. From the difference between water vapor generation amount (g / cm ² ) and P4 and P5, the water vapor generation amount (g / cm ² ) per unit area after 15 to 20 minutes has elapsed. Further, the total amount of water vapor generated per unit area (g / cm ² ) in 20 minutes is determined from the difference between P1 and P5.

  Four humidifiers of the same Example and Comparative Example were manufactured, and the average value of the amount of water vapor measured in each Example and Comparative Example is shown in Table 1 below.

In both Example A and Example B, the amount of water vapor generated per unit surface when 0 to 5 minutes elapses is 0.009 g / cm ² or more, and the amount of water vapor generated per unit area when 5 to 10 minutes elapses but, 0.007 g / cm ² or more, a water vapor generation amount per unit area at the elapsed 10-15 minutes, 0.008 g / cm ² or more, the steam generation amount per unit area at elapsed 15-20 minutes, It was 0.003 g / cm ² or more. Further, the total amount of water vapor generated per unit area in 20 minutes was 0.03 g / cm ² or more. That is, in the examples of the present invention, the amount of water vapor generated per unit area in 5 minutes is 0.003 g / cm ² or more, and the water vapor generation per unit area in 5 minutes is performed until 0 to 15 minutes elapses. The amount is 0.007 g / cm ² or more.

(6) Comparison between Example and Comparative Example Prepare four each of the humidifiers of Example A, Example B, Comparative Example A, and Comparative Example B, remove them from the sealed bag, and start supplying oxygen to the heating element. 10 minutes later, the state of water vapor generation from the skin side surface of each sample was observed by touching the skin side surface. A case where water vapor was sufficiently generated was evaluated by “◯”, and a case where water vapor was inferior was evaluated by “Δ”.

  In addition, the external shape of each humidifying body was observed, and the bulge was evaluated as “existing” when the humidifying part in which the heating element was accommodated was expanded, and the bulging was evaluated as “absent” when the swelling was not. The results are shown in Table 2 below.

Claims (5)

A body having a heating element that generates heat and generates water vapor from the moisture when oxygen is given, including moisture, and has a skin-side surface facing the skin and a non-skin-side surface opposite to the skin-side surface In the humidifier for mounting,
The heating element is between the skin-side surface and the non-skin-side surface, the surface near the skin-side surface is covered with a moisture-permeable sheet that allows water vapor to pass through, and the surface near the non-skin-side surface contains water vapor. It is covered with a non-breathable non-permeable sheet,
In the moisture permeable sheet, water vapor transmission holes having an average hole diameter of 0.2 to ² mm are uniformly formed in a range of 0.05 to 0.3 per 1 cm ^{2 in} the entire region covering the heating element. The body-mounted humidifier is characterized in that an amount of water vapor released from the heating element is 0.01 g / cm ² or more before 20 minutes have passed since the heating element started to generate heat. ^{2. The} humidifier for body wearing according to claim 1, wherein the moisture permeable sheet has a moisture permeability of 10,000 g / m ² · 24 h or less in a state where the water vapor permeable holes are not formed.   The humidifying body for body wearing according to claim 1 or 2, wherein the heating element includes a heating base that generates heat when oxygen is given thereto, and moisture of 15% or more of the mass of the heating base.   The humidifier for body wearing according to claim 3, wherein the heat generating base is powdery.   The humidifying body is provided with a separate sheet from the moisture permeable sheet between the heating element and the skin-side surface of the humidifying body, and the separate sheet is the moisture permeable sheet. The humidifier for body wearing according to any one of claims 1 to 3, wherein the moisture permeability is higher than that of the body.

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