JP4897486B2 - Warming body - Google Patents

Description

  The present invention relates to a warming body for warming the skin by bringing it into contact with the skin on the face of the body or other places.

  There exists a thing of the following patent documents 1 as a heating body which makes a body contact and warms skin.

  The heating element described in Patent Document 1 has a heating element containing metal powder, moisture and salts. A heating element is housed inside a moisture-permeable outer bag that allows oxygen and water vapor to pass through. On the side facing the skin, a woven fabric, nonwoven fabric, paper, or porous film is placed between the moisture-permeable outer bag and the heating element. In addition, a temperature control material formed of foamed plastic having perforations is interposed.

  When the heating element is taken out from the sealed bag, oxygen is given to the heating element through the moisture-permeable outer bag and the temperature control material, the heating element generates heat by the oxidation reaction of the metal powder, and the moisture in the heating element evaporates, It passes through the temperature control material and the moisture-permeable outer bag and is given to the skin.

A similar warming body is also disclosed in Patent Document 2 below. In the heating element described in Patent Document 2, a temperature adjusting material made of paper and non-woven fabric is superimposed on the surface of two substantially square heating elements, and these are housed in an outer bag of moisture-permeable non-woven fabric. This heating element is applied to the face so that two heating elements are opposed to both eyes, and water vapor is supplied around the eyes.
Japanese Patent Laid-Open No. 11-342147 JP 2002-78728 A

  However, in both of Patent Document 1 and Patent Document 2, since the moisture-permeable outer bag is a nonwoven fabric, the heat generated from the heating element is directly applied to the skin from between the fibers of the nonwoven fabric. , Irritation caused by heat applied to the skin increases. Therefore, even if the temperature adjusting material is interposed between the heating element and the moisture-permeable outer bag, the skin tends to feel heat more than necessary.

  Patent Document 1 describes that the water vapor generated from the heating element permeates the temperature adjusting material, thereby cooling the water vapor to a temperature of 50 ° C. or lower. Patent Document 2 describes that water vapor having a temperature of 40 to 42 ° C. is generated. However, it is actually difficult to reduce the water vapor generated at 80 ° C. or higher generated from the heating element to 50 ° C. or lower or 40 to 42 ° C. by passing through a temperature control material such as a nonwoven fabric.

  Further, the water vapor whose temperature has not decreased so much after passing through the temperature adjusting material passes through the through holes formed in the moisture-permeable outer bag and directly hits the skin. Therefore, the water vapor temperature felt by the skin becomes high, and the skin is easy to feel as if being stimulated by water vapor. Further, in a state where the moisture-permeable outer bag is in contact with the skin, water vapor hitting the skin cannot be diffused to the surroundings, and this also increases the water vapor temperature felt on the skin.

  If the temperature control material is made thick, it is possible to reduce the stimulation of heat and water vapor given to the skin, but with such measures, the distance between the heating element and the skin becomes too large and reaches the skin. The amount of heat and water vapor is reduced, and sufficient heating and humidification effects cannot be given to the skin.

  The present invention solves the above-mentioned conventional problems, and when used in contact with the skin, it can exhibit an appropriate warming effect with little heat irritation felt on the skin, and can obtain a good touch. The purpose is to provide a warming body that can be used.

In the present invention, a heating element is interposed between the first surface sheet to be brought into contact with the skin and the second surface sheet located on the opposite side of the first surface sheet. At least one of which is oxygen permeable and is intended for a heating element that is used by being applied to the skin, which generates heat when the heating element is supplied with oxygen , between the first surface sheet and the heating element. Is provided with a temperature control layer capable of transmitting oxygen. The temperature control layer includes a plurality of through holes connected to the heating element and the first surface sheet, and the through holes are opposed to the heating element. The opening area on the inner surface is small, the opening area on the outer surface facing the first surface sheet is large, and the first surface sheet has a number of short lines from the surface of the base material sheet through which oxygen can permeate. The fibers protrude toward the outside of the warming body at a substantially uniform height. It has the feature that to have a hirsutism sheet.

  In the warming body of the present invention, since a number of short fibers protrude from the surface of the first surface sheet, a slight gap in which the short fibers are interposed can be formed between the base sheet and the skin. The heat generated by the heating element is given to the skin through the gap, thereby suppressing the stimulation by heat to the skin and preventing the skin from being excessively heated.

In one embodiment of the present invention, the first topsheet is permeable to water vapor, the temperature control layer is permeable to water vapor.

  In the case of a heated body that gives water vapor to the skin, the water vapor that has permeated the base sheet is supplied to the skin while diffusing to the surroundings through a number of short fibers in the gap. It can soften the stimulus given to you. Therefore, even if the temperature control layer is thinned and the temperature of water vapor coming out of the substrate sheet surface is set to exceed 50 ° C., for example, irritation to the skin due to heat can be suppressed. Moreover, much water vapor | steam can be given to skin and the humidification effect to skin can be made high.

  In another one of the embodiments, the multi-haired sheet is a flocked sheet in which short fibers are fixed to the back surface of the base sheet with an adhesive.

  In this case, the adhesive is preferably a urethane-based hot melt adhesive. Since the urethane-based hot-melt adhesive has a high melting point and excellent heat resistance, the adhesive strength is not easily lowered even when relatively high-temperature heat is applied, and it is easy to prevent the short fibers from peeling off.

  In another embodiment, the substrate sheet is a nonwoven fabric.

  Moreover, in another one of the embodiments, the flocked sheet is one in which short fibers are subjected to conductive treatment and electrostatic flocking is performed on the base sheet.

  The process of electrostatic flocking is relatively simple, and an inexpensive flocking sheet can be obtained. In electrostatic flocking, it is easy to fix short fibers in a direction perpendicular to the surface of the substrate sheet, and when the first surface sheet contacts the skin, there is a gap between the back surface of the substrate sheet and the skin. Is easily formed.

  In another embodiment, it is preferable that the protruding dimension of the short fiber from the surface of the base sheet is 0.3 mm or more and 5 mm or less.

When the protruding dimension of the short fiber is within the above range, an appropriate distance can be opened between the surface of the base sheet and the skin, and the skin irritation due to heat or water vapor can be easily reduced. In another embodiment, the temperature control layer is a foamed resin sheet in which a number of closed cells are formed. In another embodiment, the color of the skin side surface of the first sheet is different from the color of the non-skin side surface of the second sheet.

  When the warming body of the present invention is brought into contact with the skin, it can suppress irritation to the skin due to heat and water vapor, and the touch can be improved. Further, when the heating element generates water vapor, a large amount of water vapor can be supplied to the skin.

The front view which shows the heating body 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 heating element of Drawing 2. The disassembled sectional view which shows the component of the heating body which is another example of embodiment. The partial expanded sectional view of FIG. The front view of the heating body of the state used with respect to the face. The side view of the heating body of the state used with respect to the face.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating body 4 1st surface sheet 5 2nd surface sheet 6 Upper edge 7 Lower edge 11 Heating part (right inner side heating part)
12 Heating part (Left inner heating part)
13 Heating unit (right outer heating unit)
14 Heating part (Left outside heating part)
15 Thin sheet part 16 Thin sheet part (central deformation part)
17 Thin sheet (right side deformation)
18 Thin sheet part (left side deformation part)
31 Heating element 32 Temperature control layer 33 Heat insulation layer OO Center line

  FIG. 1 is a front view of a heating body showing the heating body according to the embodiment of the present invention with the first surface sheet facing forward, and FIG. 2 is a II-II line of the heating body shown in FIG. 3 and 4 are exploded sectional views showing the structure of the heating element of each embodiment, FIG. 5 is an enlarged partial sectional view of a part of FIG. 2, and FIGS. It is a figure which shows a state when a warm body is applied to the face.

  The warming body 1 shown in FIG. 1 is an example of what is used like a steaming towel on the face, the side facing forward is the skin side surface 2, and the opposite side is non-skin Side surface 3 (see also FIG. 2). The warming body 1 is used by placing the skin side surface 2 against the skin. Therefore, it is preferable to make a difference between the skin-side surface 2 and the non-skin-side surface 3 in either color or tone when viewed from the outside. For example, if the skin-side surface 2 is made a color other than white, such as light aqua, yellow, or red, and the non-skin-side surface 3 is white, the user can easily recognize that the colored side is the skin-side surface 2. Become.

  In addition, as shown in FIGS. 6 and 7, the warming body 1 can cover nearly 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 so as to cover at least the bottom of the eye to the mouth, and the maximum value is, for example, 180 mm or less. 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 cheeks can be covered simultaneously, and the maximum value is, for example, 320 mm or less.

  In FIG. 1, the heating element 1 has a vertical direction that coincides with the vertical direction of the face and a width direction that is orthogonal to the vertical direction, and a center extending in the vertical direction by dividing the width direction into two equal parts. It is symmetrical with respect to the line OO. The warming body 1 has an upper edge 6 extending in the width direction above the heating element 1, and the upper edge 6 draws a convex curve upward in a region that is evenly spread left and right across the center line OO. It has a convex part 6a. The lower edge 7 on the side facing the upper edge 6 has a concave portion 7a that draws a convex curve upward in a region that extends evenly to the left and right across the center line OO. Further, the right edge 8 and the left edge 9 of the warming body 1 define a convex curve that protrudes to the left and right sides.

  As shown in FIG. 1, the warming body 1 is formed with a right inner heating unit 11 on the right side of the center line OO and a left inner heating unit 12 on the left side of the center line OO toward the skin side surface 2. Has been. A right outer heating unit 13 is formed on the further right side of the right inner heating unit 11, and a left outer heating unit 14 is formed on the further left side of the left inner heating unit 12.

  The right inner heating unit 11 is a region surrounded by a lane marking 21. The lane marking 21 has an inner straight line portion 21a parallel to the center line OO, an outer straight line portion 21b parallel to the right slope reference line L1, and an upper line portion 21c that further draws a convex curve upward. And a lower line portion 21d that draws a convex curve downward. The left inner heating unit 12 is a region surrounded by a lane marking 22. The partition line 22 also has an inner straight line portion 22a parallel to the center line OO, an outer straight line portion 22b parallel to the left inclined reference line L2, an upper line portion 22c, and a lower line portion 22d.

  The right outer heating unit 13 is an area surrounded by a lane marking 23. The partition line 23 includes a straight line portion 23a and a curved line portion 23b that are parallel to the right-side tilt reference line L1. Similarly, the left outer heating unit 14 is a region surrounded by a lane marking 24. The partition line 24 includes a straight line portion 24a parallel to the left-side inclined reference line L2 and a curved line portion 24b.

  The right inner heating unit 11 and the left inner heating unit 12 are symmetrical with respect to the center line OO. Further, the right outer heating unit 13 and the left outer heating unit 14 are symmetrical with respect to the center line OO.

  The heating element 1 does not have a heating element 31 (see FIG. 2) except for the right inner heating unit 11, the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14. And a thin sheet portion 15 that is treated as a non-heated portion that does not have a water vapor generating function. In the thin sheet portion 15, the constituent members excluding the heating element 31 among those constituting the warming body 1 are pressed and welded together, and the thin sheet portion 15 includes the right inner heating section. 11, bending rigidity is lower than that of the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14. The right inner heating unit 11, the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14 are surrounded by a thin sheet unit 15.

  As shown in FIG. 1, a central deformation portion 16 is formed by a thin sheet portion 15 in a portion that is sandwiched between the right inner heating portion 11 and the left inner heating portion 12 and extends along the center line OO. . Further, a right side deformation portion 17 is formed by a thin sheet portion 15 in a portion extending between the right inner heating portion 11 and the right outer heating portion 13 and extending along the right inclination reference line L1. Similarly, a left side deformation portion 18 is formed by a thin sheet portion 15 at a portion sandwiched between the left inner heating portion 12 and the left outer heating portion 14 and extending along the left inclined reference line L2.

  The width dimension of the right side deformation part 17 and the width dimension of the left side deformation part 18 are narrower than the width dimension of the central deformation part 16. The right slope reference line L1 and the left slope reference line L2 are straight lines passing through the center in the width direction of the right side deformed portion 17 and the left side deformed portion 18, and gradually increase toward the center line OO toward the upper side. It inclines so that it may approach and cross | intersects centerline OO outside the heating body 1. FIG. The angle θ formed between the right tilt reference line L1 and the center line OO and the angle θ formed between the left tilt reference line L2 and the center line OO are both preferably 10 degrees or greater and 45 degrees or less.

  The intersection between the right slope reference line L1 and the upper edge 6 is the upper deformation reference point 25a, the intersection between the left slope reference line L2 and the upper edge 6 is the upper deformation reference point 25b, and the horizontal line between the upper deformation reference points 25a and 25b. The interval in the direction is W1. Further, the intersection of the right slope reference line L1 and the lower edge 7 is a lower deformation reference point 26a, the intersection of the left slope reference line L2 and the lower edge 7 is a lower deformation reference point 26b, and between the lower deformation reference points 26a and 26b. The horizontal interval is W2. The interval W1 is shorter than the interval W2, the interval W1 is preferably in the range of 50 to 120 mm, and the interval W2 is preferably in the range of 100 to 220 mm.

  As shown in FIG. 1, a ventilation portion 27 is formed in the central deformation portion 16. In this embodiment, the ventilation portion 27 is formed by cutting 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. The lateral opening width dimension A of the ventilation part 27 may be less than the width dimension of the central deformation part 16. For example, the maximum value of the opening width dimension A can be about 40 mm, and more preferably about 30 mm. The ventilation part 27 can also be formed by making a slit in the central deformation part 16. The opening width dimension A at that time is 0 mm.

  The vertical dimension B of the ventilation portion 27 is, for example, 20 mm or more and 100 mm or less. Moreover, although the ventilation | gas_flowing part 27 may be provided intermittently in the up-down direction, it is preferable that the ventilation | gas_flowing part 27 at that time sets the dimension between what exists in an up-and-down both ends to 20-100 mm.

  As shown in FIGS. 2 and 3, a heating element 31 is provided inside the right inner heating unit 11, the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14. The heating element 31 contains easily oxidizable metal powder such as iron, aluminum, and zinc, water, and salts for oxidizing the metal powder. Salts include sodium chloride, potassium chloride, calcium chloride, magnesium chloride and the like. Further, 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.

  When oxygen is given to the heating element 31, the metal powder is oxidized and rises to about 80 ° C. or more by the oxidation heat at that time. Due to this oxidation heat, water in the heating element 31 evaporates and water vapor is generated.

  It is preferable that the heating element 31 is a sheet formed by mixing each component and pressing it with a roller. In addition, the heating element 31 may include a resin material, an adhesive, a fiber, or the like that is effective for maintaining the form of the sheet.

  The heating element 31 in FIG. 3 is in the form of a sheet, and when such a sheet-like heating element 31 is used, the heating element 31 is covered with the covering sheets 45, 46 ( (See FIG. 4). The temperature control layer 32 can be directly stacked on the surface of the sheet-like heating element 31, and the first surface sheet 4 can be directly stacked on the temperature control layer 32. With the heating element 1 having this configuration, oxygen can be quickly given to the entire surface of the heating element 31 through the first surface sheet 4 and the through hole 34 of the temperature control layer 32. The heating element 31 to which oxygen is given in this way generates heat within a short time and quickly generates water vapor. The water vapor moving from the heating element 31 toward the skin is not hindered by the covering sheets 45 and 46, and is quickly supplied to the skin through the temperature control layer 32 and the first surface sheet 4. Therefore, a lot of water vapor can be supplied to the skin per unit time.

  In the heating element 1 of the embodiment shown in FIGS. 2 and 3, the temperature control layer 32 is sandwiched between the first topsheet 4 and the heating element 31. Further, a heat insulating layer 33 is sandwiched between the second topsheet 5 and the heating element 31.

  The 1st surface sheet 4, the 2nd surface sheet 5, the temperature control layer 32, and the heat insulation layer 33 in this heating body 1 have the same shape and area as the whole shape and area of the heating body 1. FIG. And the heating body 1 is the area | region other than the right inner side heating part 11, the left inner side heating part 12, the right outer side heating part 13, and the left outer side heating part 14, 1st surface sheet 4, 2nd surface sheet 5, temperature control The layer 32 and the heat insulating layer 33 are in close contact to form the thin sheet portion 15. In the thin sheet portion 15, as shown in FIG. 5, a large number of embossed portions 35 are formed, and in the embossed portion 35, each component in the thin sheet portion 15 is heated and pressurized to be welded and integrated. It has become.

  As shown in FIG. 1, the embossed portion 35 is formed in a fine cross pattern. The embossed portion 35 includes a right inner heating portion 11, a left inner heating portion 12, a right outer heating portion 13 and a left outer heating portion 14. It is formed in the whole area | region of the thin sheet | seat part 15 other than. In addition, the pattern shape of the embossed part 35 is arbitrary, and may be a dot shape or a curved waveform shape.

  A multi-hair sheet can be used for the first surface sheet 4. This multi-haired sheet has a high number of short fibers 42 that are substantially uniform from the outer surface 41a (see FIG. 3) of the base material sheet 41 that is permeable to oxygen and water vapor, that is, from the surface facing the skin of the heated body user. It is what protrudes. In this multi-haired sheet, a base sheet 41 made of woven fabric or non-woven fabric is embedded with a large number of short fibers 42, or a plurality of short fibers 42 are entangled with fibers constituting the woven fabric or non-woven fabric. Although it can be used, preferably a flocked sheet is used.

  The flocked sheet is formed by adhering and fixing a number of short fibers 42 to the outer surface 41a of the base sheet 41 with an adhesive. An electrostatic flocking method can be employed as a method for flocking by bonding the short fibers 42. In this electrostatic flocking method, a conductive material such as sodium silicate is applied to the surface of the short fiber 42 or the conductive material is kneaded into the short fiber 42 to conduct the conductive treatment on the short fiber 42. Next, the base sheet 41 and the short fibers 42 are given charges having a potential difference from each other, that is, by applying a voltage between the base sheet 41 and the short fibers 42, the charged short fibers 42 become the base sheet. The outer surface 41a of 41 has a substantially vertical posture and is fixed to the outer surface 41a by an adhesive.

  The base sheet 41 is a fiber formed of at least one synthetic resin such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon (Ny), or rayon fiber or natural fiber (for example, pulp). The nonwoven fabric is formed by, for example, a spunbond method, a point bond method, a spunlace method, a through air method, or the like.

The short fibers 42 are fibers formed of at least one synthetic resin such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon (Ny), or rayon fibers. The fineness of the short fibers 42 is preferably as thin as about 0.11 to 3.3 dtex, and the projecting dimension of the short fibers 42 from the outer surface 41a of the base sheet 41 is preferably 0.3 mm or more and 5 mm or less, and further preferably It is preferable that it is 5 mm or more and 2 mm or less. Further, the number of short fibers 42 per 1 cm ² of the outer surface 41a of the base sheet 41 is about 100 to 10,000, but is not limited to this range. When the protruding dimension of the short fibers 42 from the base sheet 41 is within the above range, it is easy to form an appropriate gap between the base sheet 41 and the skin when the first surface sheet 4 comes into contact with the skin. Become.

  The temperature control layer 32 is formed of a foamed resin sheet in which independent bubbles are scattered inside. For example, a foamed polyethylene resin sheet or a polyurethane foam resin sheet having a foaming ratio of about 10 to 50 times is used as the sheet. There is. The temperature control layer 32 has a large number of through holes 34 through which oxygen and water vapor can pass. The through hole 34 is formed such that the opening diameter D1 at the outer surface 32a facing the first surface sheet 4 is larger than the opening diameter D2 at the inner surface 32b facing the heating element 31.

  The temperature control layer 32 has a thickness dimension that lowers the temperature of water vapor generated from the heating element 31 by at least 10 ° C., preferably by 20 ° C. or more, and the thickness dimension is, for example, in the range of 1 to 5 mm. . The opening diameter D2 of the through hole 34 on the inner surface 32b of the temperature control layer 32 is in the range of 0.1 to 2 mm, preferably in the range of 0.1 to 1 mm. The opening area ratio of the through hole 34 on the inner surface 32b is about 5 to 30%.

  The second surface sheet 5 is a non-breathable sheet that does not allow water vapor to permeate, or has a lower water vapor transmission rate than the first surface sheet 4. 3 and 4, the non-breathable resin film 5b formed of polyethylene resin or the like is laminated on the inner surface of the nonwoven fabric 5a formed by air raid method, spun bond method, point bond method or the like. ing.

  The heat insulating layer 33 is a foamed polyethylene resin sheet or a foamed urethane resin sheet having no through-holes, and independent bubbles are scattered inside. The thickness dimension of the heat insulation layer 33 is about 0.5-4 mm, Preferably it is about 0.5-2 mm.

  FIG. 4 shows a layer structure of a heating element 1A which is an example of the embodiment. In this heating element 1A, the heating elements 31A provided in the right inner heating part 11, the left inner heating part 12, the right outer heating part 13 and the left outer heating part 14 are not formed into a sheet shape, and are mutually connected. This is a collection of independent powders such as metal powder, and the heating element 31A covers the right inner heating part 11, the left inner heating part 12, the right outer heating part 13 and the left outer heating part 14. It is wrapped with sheets 45 and 46. The covering sheets 45 and 46 are capable of transmitting oxygen and water vapor without allowing powder such as metal powder to pass through, and are formed of a nonwoven fabric, a woven fabric, a breathable paper, a breathable resin film, or the like. Has been.

  The warming body 1 formed in this way is supplied to the user after being enclosed in a sealed bag formed of a non-breathable resin film that does not allow oxygen to pass through.

  When the sealed bag is opened and the heating element 1 is taken out, the heating element 31 provided in the right inner heating part 11, the left inner heating part 12, the right outer heating part 13 and the left outer heating part 14 is exposed to the atmosphere. Oxygen is supplied and the metal powder undergoes an oxidation reaction, and moisture contained in the heating element 31 evaporates due to oxidation heat at that time. The water vapor passes through the temperature control layer 32 and the first surface sheet 4, goes out of the first surface sheet 4, and is supplied to the skin, but the non-breathable resin film on the opposite side of the first surface sheet 4 In the 2nd surface sheet 5 formed by 5b, permeation | transmission is blocked | prevented and it does not go out.

  As shown in FIGS. 6 and 7, the warming body 1 is used such that the skin-side surface 2 is in contact with the human skin. The heating element 31 has a temperature around 80 ° C. or higher due to the heat of oxidation of the metal powder. The temperature control layer 32 covering the heating element 31 is a foamed resin sheet in which a large number of closed cells are formed. Therefore, the heat of the heating element 31 is not directly transmitted to the skin, and the skin temperature can be prevented from becoming abnormally high.

  The temperature of water vapor generated from the heating element 31 may be around 80 ° C. or higher, but this water vapor passes through the through hole 34 of the temperature control layer 32 and further passes through the first surface sheet 4. By being cooled in between, for example, the outer surface 41a of the base sheet 41 may be at a temperature of 60 ° C. or lower. As shown in FIG. 3, the through hole 34 formed in the temperature control layer 32 has a small opening diameter D2 at the inner surface 32b facing the heating element 31, and a larger opening diameter D1 at the outer surface 32a facing the skin. D1 / D2 is, for example, in the range of 1.2-5. Water vapor generated from the heating element 31 is distributed and supplied to each through hole 34, and the temperature decreases while diffusing in the radial direction inside the through hole 34. Further, since the opening diameter D <b> 1 of the through hole 34 is widened on the outer surface 32 a of the temperature control layer 32, the water vapor tends to diffuse widely along the first surface sheet 4.

  On the skin side surface 2 of the warming body 1, the right inner heating unit 11, the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14 protrude from the thin sheet unit 15 toward the skin side. Therefore, when the heating body 1 is applied to the face or the like, the heating units 11, 12, 13 and 14 mainly hit the skin. The first surface sheet 4 located on the skin side surface of the heating units 11, 12, 13, 14 is a multi-hair sheet in which a number of short fibers 42 protrude from the outer surface 41 a of the base sheet 41. The first surface sheet 4 comes into contact with the skin via a large number of short fibers 42, so that the touch feeling to the skin is soft.

  In addition, due to the presence of the short fibers 42, a slight distance is formed between the outer surface 41a of the base sheet 41 and the skin. By this gap, the heated base sheet 41 can be prevented from directly hitting the skin, and the stimulation of heat to the skin can be reduced. Furthermore, even if the temperature of the water vapor passing through the base sheet 41 is, for example, 50 ° C. or higher, since the water vapor is supplied to the skin through the gaps, irritation to the skin can be suppressed, and the temperature of the skin is increased. You can prevent it from feeling. Moreover, since the water vapor | steam supplied between the base material sheet | seat 41 and skin passes through a space | gap and spread | diffuses easily around, the irritation | stimulation of the heat | fever given to skin can also be suppressed by this diffusion. Moreover, since water vapor diffuses in this way, water vapor can be supplied evenly to the surface of the skin, and the humidifying effect on the skin can be enhanced.

  In particular, when the first surface sheet 4 is formed by electrostatic flocking, a large number of short fibers 42 having the same length protrude from the outer surface 41a of the base sheet 41 in a substantially vertical posture. When the first surface sheet 4 is applied to the skin, it becomes easy to form a substantially constant gap between the base material sheet 41 and the skin via the short fibers 42. Further, when a urethane-based hot melt adhesive is used as an adhesive for fixing the short fibers 42 to the base sheet 41, the adhesive has excellent heat resistance. 42 becomes difficult to drop off.

  As described above, since the multiple short fibers 42 provided on the first surface sheet 4 can exhibit the function of lowering the temperature of water vapor and diffusing the water vapor, the temperature control is particularly thick in order to lower the temperature of the water vapor. There is no need for layer 32. Therefore, a large amount of water vapor generated from the heating element 31 can be supplied to the skin.

  Further, as shown in FIG. 5, the periphery of the right inner heating unit 11 is partitioned by a partition line 21. A thin sheet portion 15 is formed outside the partition line 21. That is, the dividing line 21 receives pressure as when the first surface sheet 4, the second surface sheet 5, the temperature control layer 32, and the heat insulating layer 33 form the thin sheet portion 15 on the inner side of the position. It means a boundary line indicating that it is not.

  In the right inner heating unit 11, the temperature control layer 32 and the heat insulating layer 33 formed of the foamed resin sheet are in close contact with each other in the inner peripheral region having the width dimension Wa inside the partition line 21, and the heating element It is formed so as to prevent 31 from approaching the partition line 21. The width dimension Wa is, for example, in the range of 0.3 to 5 mm. When the region of the width dimension Wa is provided, when the metal powder forming the heating element 31 is oxidized to form a reddish brown oxide, it is possible to prevent the color of the oxide from seeping out into the parting line 21. .

  For example, if the temperature control layer 32 and the heat insulating layer 33 are not present in the region of the width dimension Wa, the metal powder oxide (rust layer) is dissolved in water and pressed to increase the fiber density. The area around the right inner heating unit 11 is reddish brown along the lane line 21 and the user sees the color directly, which causes anxiety and discomfort. I can remember. However, in the embodiment shown in FIG. 5, the temperature control layer 32 and the heat insulating layer 33 that are in close contact with each other inside the dividing line 21 dissolve the oxide and the colored water flows toward the dividing line 21. This can be prevented. Therefore, the lane marking 21 is unlikely to be reddish brown.

  The effects obtained with the cross-sectional structure of FIG. 5 can be obtained in the same manner also in the dividing line 22 of the left inner heating unit 12, the dividing line 23 of the right outer heating unit 13, and the dividing line 24 of the left outer heating unit 14.

  FIG. 6 is a front view of the warming body 1 applied to the face, and FIG. 7 is a side view thereof.

  In the heating element 1, the right inner heating part 11, the left inner heating part 12, the right outer heating part 13 and the left outer heating part 14 have heating elements 31, which are thick and have high rigidity. It ’s harder to turn. However, the center deformation | transformation part 16 between the right inner side heating part 11 and the left inner side heating part 12 becomes easy to bend via the centerline OO, Furthermore, the right inner side heating part 11 and the right outer side heating part 13 are The right side deformation part 17 between them and the left side deformation part 18 between the left inner heating part 12 and the left outer heating part 14 are also easily bent.

  Therefore, each of the right inner heating unit 11, the left inner heating unit 12, the right outer heating unit 13, and the left outer heating unit 14 is in contact with the undulating covering face independently without being restricted to each other. Is possible.

  As shown in FIG. 6, when the warming body 1 is put on the face so that its center line OO coincides with the central part of the nose and the mouth, the warming body is formed at the relatively wide central deformed portion 16. 1 bends left and right from the nose muscles. Further, the upper deformation reference point 25a and the upper deformation reference point 25b are located near the upper part of the cheekbone located under the eyes, and the lower deformation reference point 26a and the lower deformation reference point 26b are located on the left and right side portions below the jaw ( If it seems to be located on the left and right side portions slightly below the mouth), the heating body 1 at that time bends from the portions of the right inclination reference line L1 and the left inclination reference line L2 so as to follow the undulation of the face. It becomes like this.

  Moreover, the right inner side heating part 11 and the left inner side heating part 12 can contact | adhere to a cheek part on the right and left sides of a nose. Both the right inner heating part 11 and the left inner heating part 12 have a shape in which the width dimension gradually decreases as the upper edge 6 is approached. It is particularly easy to adhere.

  Furthermore, the right outer heating unit 13 and the left outer heating unit 14 can be in close contact from the left and right sides of the cheek to the vicinity of the ear.

  At the upper edge 6 of the heating element 1, a convex portion 6a is formed at the center line OO. Water vapor can be supplied to both sides of the nose by the projection 6a hitting the nasal muscles.

  Further, the ventilation portion 27 elongated vertically in the central deformation portion 16 extends to the vicinity of the nostril, more preferably to the front of the mouth. Such a warming body 1 is easy to breathe when it is applied to the face, and the wearer does not feel stuffy.

  In the illustrated example, the heating body 1 has been described as having a shape suitable for use on the face. However, the heating body according to the present invention is applied to an appropriate part of the body other than the face. Can be used.

  In the present invention, the second surface sheet 5 is a multi-haired sheet (planted sheet) similar to the first surface sheet 4, and the second surface sheet 5 and the heat insulating layer 33 can transmit oxygen and steam. May be.

  Furthermore, the heating body according to the present invention may be one in which the temperature control layer 32 does not transmit water vapor and has only a heating effect on the skin without giving water vapor to the skin.

Claims (7)

A heating element is interposed between the first surface sheet to be brought into contact with the skin and the second surface sheet located on the opposite side of the first surface sheet, and at least one of the first and second surface sheets is oxygen. A heating element that is permeable and is used by applying to the skin that generates heat when the heating element is supplied with oxygen,
A temperature control layer capable of transmitting oxygen is provided between the first surface sheet and the heating element,
In the temperature control layer, a plurality of through holes connected to the heating element and the first surface sheet are formed,
The through hole has a small opening area on the inner surface facing the heating element, and a large opening area on the outer surface facing the first surface sheet,
The first surface sheet is a multi-hair sheet in which a large number of short fibers protrude toward the outside of the warming body at a substantially uniform height from the surface of the base material sheet through which oxygen can permeate. A warming body. The first surface sheet is permeable to water vapor ;
The temperature control layer, warming of claim 1 wherein the permeable to water vapor. Wherein hirsutism sheet, Ri flocked sheets der that the short fibers in the outer surface is fixed by the adhesive of the base sheet,
Before SL flocked sheet, the short fibers warming of claim 1 or 2, wherein those that are conductive treatment. Wherein the adhesive, Ri hot melt adhesive der urethane, warming of claim 3, wherein before Kimotozai sheet is a nonwoven fabric. The heating element according to any one of claims 1 to 4 , wherein a protruding dimension of the short fibers from the outer surface of the base sheet is 0.3 mm or more and 5 mm or less. The warming body according to any one of claims 1 to 5, wherein the temperature control layer is a foamed resin sheet in which a large number of closed cells are formed. The heating body according to any one of claims 1 to 6, wherein a color of the skin side surface of the first sheet is different from a color of the non-skin side surface of the second sheet.

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