Thermal mattress

Abstract

To provide a thermal mattress that can be used hygienically for a long period of time and has a heating function.SOLUTION: A thermal mattress comprises: a mattress body made of a foamable material and having a substantially rectangular parallelepiped shape; wherein the thermal mattress further comprises an antibacterial, antiviral coating layer made of plastic and provided so as to cover a surface of the thermal mattress; and wherein the heater is provided near one of surfaces that has the largest area of the thermal mattress and between the mattress body and the antimicrobial, antiviral coating layer.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a thermal mattress having a heater for warming the human body. [Background technology]

[0002] Mattresses for beds and other furniture are also widely used in hospitals and nursing homes.

[0003] For example, during dialysis, patients spend their time on a bed mattress. In dialysis, blood is drawn from the patient's body, and the treated blood is returned to the body. However, if the temperature of the blood returned to the body is lower than the patient's body temperature to prevent dialysis hypotension, the cold blood can cause the patient to become cold to the core. For this reason, electric blankets are used to warm the body from the outside.

[0004] As bed mattresses having a heating function, the following have been proposed (Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2014-23967 [Patent Document 2] Special table 2013-520223 Summary of the Invention [Problem to be solved by the invention]

[0006] In nursing and medical facilities, items used by multiple patients need to be disinfected and washed after each use, which is very hard work. Therefore, there is a growing demand for items that can be used hygienically without disinfecting or washing.

[0007] SUMMARY OF THE PRESENT INVETION The present invention has been made in view of the above, and an object of the present invention is to provide a thermal mattress which can be used hygienically without a sheet or cover and which also has a heater. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides a heating mattress comprising a substantially rectangular parallelepiped mattress body made of a foam material and a heater, further comprising an antibacterial and antiviral plastic coating layer arranged to cover the surface of the heating mattress, the heater being arranged near one of the surfaces of the heating mattress with the largest area, between the mattress body and the antibacterial and antiviral coating layer.

[0009] In the present invention, the surface of the thermal mattress is covered with an antibacterial and antiviral plastic coating layer, which prevents the surface of the thermal mattress from being contaminated by bacteria or viruses and allows for hygienic use without the need for a cover that requires washing.

[0010] In addition, the plastic antibacterial and antiviral coating layer prevents stains from sweat, saliva, vomit, blood, etc. from penetrating into the mattress body, making it easy to keep the heating mattress clean by simple measures such as wiping it off.

[0011] Furthermore, the surface of the heating mattress (the antibacterial and antiviral coating layer) can be directly cleaned using high-pressure water or steam, making it even more hygienic and clean to use.

[0012] In principle, this antibacterial and antiviral coating layer is provided so as to cover the entire surface of the heating mattress, but when electrical components such as power wiring for the heater and a controller are attached to the heating mattress, the surfaces of these electrical components are not covered. In addition, it is preferable that the materials of the components arranged on the surfaces of the electrical components also have antibacterial and antiviral properties.

[0013] In addition, since the mattress body is made of a foam material, it has a suitable elasticity and is comfortable to use. In addition, the foam material has small voids on the surface, so it is easy to provide a covering layer directly on the surface of the mattress body.

[0014] Furthermore, a heater is provided near the largest surface area, between the mattress body and the antibacterial and antiviral coating layer, so that when a person sits on this surface and uses it, the heat from the heater can be efficiently transferred to the user.

[0015] Since the mattress body is roughly rectangular, the mattress body has two or more sides with the largest area, but the heater is formed only near one of the sides and not on the other sides.

[0016] Here, the term "approximately rectangular parallelepiped shape" means that the shape of the foamable material, ignoring voids (pores), is a rectangular parallelepiped or a rectangular parallelepiped with at least one corner chamfered or rounded.

[0017] In the present invention, the term "antibacterial and antiviral properties" means antibacterial and antiviral properties according to the standards of the Society of International Studies on Antibacterial Articles (SIAA), and preferably further antifungal properties according to the SIAA standards.

[0018] Furthermore, the method for imparting antibacterial and antiviral properties to plastics is not particularly limited, and for example, commercially available plastic films or coating materials that have been treated with antibacterial and antiviral properties can be used.

[0019] Furthermore, it is essential that the covering layer made of plastic has waterproof properties that prevent moisture from penetrating into the interior, and it is more preferable that it has small wear during long-term use, durability against chemicals such as wiping with alcohol or a chlorine-based disinfectant, and durability against sterilization treatment at high temperatures.

[0020] The covering layer may be formed by attaching a plastic film to the surface of the mattress body with an adhesive or by heat welding, or may be formed as a plastic coating on the surface of the mattress body. When an adhesive is used, it is preferable to attach a plastic film on which an adhesive layer has already been formed to the surface of the mattress body.

[0021] When using a plastic film, one film may be configured to cover multiple surfaces of the mattress body, or one film may be configured to cover one surface of the mattress body. When using multiple films, it is necessary to prevent moisture from penetrating through the joints. There is no particular limit to the method for this, but the films may be laminated by overlapping parts, or gaps may be filled with caulking or a coating film.

[0022] The heater is not particularly limited, and any heater equipped with a temperature control mechanism that adjusts the surface temperature to a temperature close to body temperature (approximately 36 to 40°C) can be used as appropriate. Among them, heater wires (cord heaters) used in electric blankets and the like are preferred because they are inexpensive heaters that have these functions and are unlikely to cause discomfort to the user when placed on the mattress. It is preferred that the heater wires are covered with an insulating waterproof coating such as silicone rubber.

[0023] The heater may be provided on the entire surface of the thermal mattress, or on a portion of the surface. For example, the heater may be provided only on the portion where the human body normally rests, and not on the portion where the head rests.

[0024] Furthermore, there are no particular limitations on the form of the electrical wiring that supplies electricity from outside the mattress to the heater, and any method and material that does not allow moisture to enter the heating mattress may be used.

[0025] The heater can be installed in a recess in the surface of the mattress body. The heater wire can be installed in a groove in the surface of the mattress body. By installing the heater in such a recess or groove, unnecessary movement of the heater can be restricted and discomfort caused by a heater with low cushioning properties can be reduced.

[0026] Furthermore, by providing a heater covering layer on the recess or groove, the discomfort caused by the heater having low cushioning properties can be further reduced. The heater covering layer is preferably made of a foaming material using the same substance as the mattress body so that there is no significant difference in cushioning properties. The foaming material using the same substance means that the substance used is the same, but the foaming ratio does not need to be the same. The heater covering layer and the mattress body may or may not be bonded with an adhesive.

[0027] In addition, the heater coating layer is preferably provided with through holes for accelerating heat conduction to the surface side. The through holes may be formed using a separate drill or the like, or may be formed by foaming so that the holes are continuous when foaming. When the through holes are formed, air moves through the through holes due to changes in pressure distribution caused by the user turning over in bed, and heat moves with the air.

[0028] Incidentally, radium enhances immunity, natural healing power, antioxidant action, etc. through its hormesis effect, so by incorporating it into a heating mattress, it is possible to enhance the user's recovery power, etc. Methods for incorporating radium into a heating mattress include creating a foaming material using a material that has radium impregnated (kneaded) into it, or incorporating radium into the adhesive layer that bonds the mattress body and the antibacterial and antiviral coating layer.

[0029] There is no particular limit to the way in which radium is incorporated, and ore containing radium can be made into a powder or granule form and incorporated into the heating mattress. The particle size is not particularly limited, and a wide range of sizes can be used, for example, from about 1 μm to 5 mm. When incorporating it into the adhesive layer, it is preferable to make it about 1 μm to 1 mm.

[0030] The amount of radium is not particularly limited, and may be appropriately determined taking into consideration the desired effect, costs, and the like.

[0031] In addition, the surface of the mattress body on which the heater is arranged may be configured to have a number of protrusions for dispersing body pressure. In this way, the body pressure of the human body is appropriately dispersed, and air permeability is ensured between the mattress and the heat mattress, so that no discomfort occurs during use. The shape of the many protrusions on the mattress body is also reflected in the shape of the antibacterial and antiviral coating layer provided on the surface (the external appearance of the heat mattress), forming a number of protrusions.

[0032] In addition, the antibacterial and antiviral coating layer formed on the surface of the mattress body where the heater is located can be configured to have fine irregularities formed thereon, making the surface soft to the touch and allowing the mattress to be used comfortably without the use of sheets.

[0033] The mattress may be configured to have both a large number of protrusions on the mattress body and fine irregularities on the antibacterial and antiviral coating layer. In this case, it is preferable that the large number of protrusions and the fine irregularities are formed on the same surface.

[0034] The shape of the fine irregularities is not particularly limited. For example, a random rough surface, a regular rough surface, or a combination of these may be used. The shape of the protrusions and recesses is also not particularly limited, and may be linear such as straight or curved, dotted, or irregular.

[0035] The method of forming the fine irregularities is not particularly limited. For example, a method of forming a plastic coating film on the surface of the mattress body where irregularities have been formed on the surface by digging grooves or holes, sandblasting, etc., a method of attaching a plastic film with increased plasticity by heating to the surface of the mattress body where irregularities have been formed, a method of attaching a plastic film with fine irregularities already formed on the surface of the mattress body, etc. can be adopted. In addition, it is preferable to adopt a method in which the mattress body made of a foaming material is stretched by pulling and the plastic film is not stretched and is then stuck together, and the plastic film is bent by contraction of the mattress body to form irregularities, since this method can easily form irregularities. The pulling in this case may be in one direction or two directions, but one direction is preferable because it is easier to process. In addition, it is preferable that the pulling direction is parallel to the longitudinal direction of the thermal mattress.

[0036] The amount of tension is preferably 2 to 10%, more preferably 3 to 8%, and even more preferably 4 to 6%, calculated as an area. When the tension direction is unidirectional, wrinkle-like irregularities are formed substantially perpendicular to the tension direction, and when the tension direction is bidirectional, irregularities are formed in random directions.

[0037] The surface on which the fine irregularities are formed in this way has a ratio of actual area to apparent area (actual area / apparent area) of 1.02 to 1.10. The foam material acts to absorb the deflection, resulting in wrinkles that are convex on the mattress body side (concave from the surface side).

[0038] The maximum height Sz of the surface on which the fine irregularities are formed in accordance with ISO 25178 is preferably 0.5 to 20 mm, more preferably 0.8 to 18 mm, and even more preferably 1 to 15 mm.The average height Sa in accordance with ISO 25178 is preferably 0.3 to 15 mm, more preferably 0.5 to 10 mm, and even more preferably 0.6 to 8 mm.

[0039] In addition, the multiple protrusions formed on the mattress body may be any known multiple protrusions for dispersing body pressure, and the shape, size, density, arrangement, etc. of the protrusions are not particularly limited. The method for forming the multiple protrusions may also be a known processing method, such as foaming inside a mold in which multiple protrusions are formed, or removing excess parts by cutting, etc. For example, the shape may be a shape in which multiple protrusions having a shape half a spheroid are aligned, a cone with a rounded or chamfered apex, an elliptical cone, or a polygonal pyramid are aligned.

[0040] The multiple protrusions may be protrusions of equal size arranged in a regular pattern, or protrusions of different sizes arranged randomly, or the size and arrangement may vary depending on the location (corresponding body part).

[0041] The height of each convex portion is preferably 5 to 60 mm, more preferably 12 to 55 mm, and further preferably 20 to 50 mm.

[0042] The size of one protrusion is preferably 50 to 1000%, more preferably 70 to 800%, and even more preferably 80 to 600% of the height of the protrusion. The size of a protrusion means the diameter of the outline surrounding the outer periphery of the protrusion.

[0043] In addition, the heater is disposed in a portion other than the protrusion, but if the heater is not fixed and is easily moved, it is preferable to provide a recess or a groove for installing the heater. In this case, the heater coating layer may or may not be provided.

[0044] The plastic material is not particularly limited as long as it has appropriate flexibility, is capable of forming a film or a coating, and is waterproof, and films made of materials such as polyethylene, polypropylene, polystyrene, and other polyolefins, polyester, polyamide, polyvinyl acetate, polyurethane, etc. Among them, it is preferable to use a material that is also excellent in abrasion resistance and chemical resistance, such as polyester, polyamide, polyurethane, etc., and polyurethane (polycarbonate-based polyurethane) using polycarbonate di(poly)ol as the polyol component is even more preferable.

[0045] The coating layer may contain, in addition to the chemical components for antibacterial and antiviral processing, one or more types of known additives, such as antioxidants, heat stabilizers, UV absorbers, flame retardants, flame retardant assistants, colorants, pigments, anti-mold agents, light resistance agents, plasticizers, tackifiers, dispersants, defoamers, curing catalysts, curing agents, leveling agents, water repellents, coupling agents, fillers, vulcanizing agents, and vulcanization accelerators, in a purposeful manner.

[0046] Moreover, if the thickness of the coating layer is too thick, the cost becomes high, and if it is too thin, it is easily worn away by abrasion, so the thickness is preferably 15 to 100 μm, more preferably 17 to 80 μm, and even more preferably 20 to 50 μm.

[0047] The mattress body can be made of known foamable materials, such as foamed plastics such as polyurethane foam (urethane foam), polyethylene foam, polypropylene foam, polystyrene foam, polyethylene terephthalate foam, and natural rubber foam. Among these, the use of natural rubber foam has the advantage of providing appropriate compression resilience and being environmentally friendly because it is a plant-based product.

[0048] The thickness of the mattress body is not particularly limited and may be appropriately selected according to the intended use. The expansion ratio of the expandable material (volume after expansion / volume before expansion) may be appropriately set according to the material used and the elasticity required for the intended use. Effect of the Invention

[0049] According to the present invention, a thermal mattress that can be used hygienically without using a cover or the like can be realized. [Brief description of the drawings]

[0050] [Figure 1] FIG. 1 is a diagram showing the external appearance of a thermal mattress according to a first embodiment. [Diagram 2] 2(a) is an enlarged view of part A in FIG. 1, and FIG. 2(b) is a cross-sectional end view taken along line BB' in FIG. 2(a). [Diagram 3] FIG. 3 is a diagram showing a schematic example of the arrangement of heater wires in a thermal mattress. [Figure 4] FIG. 11 is a diagram showing a schematic structure of a mattress body of a thermal mattress according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0051] (Embodiment 1) The present invention will be described below with reference to the drawings. Figure 1 is a diagram showing the appearance of a thermal mattress according to the present invention, Figure 2(a) is an enlarged view of part A in Figure 1, Figure 2(b) is an end view of a cross section taken along line B-B' in Figure 2(a), and Figure 3 is a diagram showing a schematic example of the arrangement of heater wires in a thermal mattress.

[0052] As shown in Figures 1 and 2, the thermal mattress 100 of the present invention comprises a mattress body 10 made of expanded polyurethane (urethane foam) and an antibacterial and antiviral plastic coating layer 20 formed in contact with the surface of the mattress body 10.

[0053] As shown in Fig. 2, a groove 40 is formed in the surface having the largest area of ​​the mattress body 10, and a heater wire (cord heater) 30 is arranged inside this groove 40. A heater covering layer 50 is formed on this heater wire 30 so as to fill the groove 40. The antibacterial and antiviral covering layer 20 is formed so as to cover the mattress body 10 and the heater covering layer 50. In other words, the mattress body 10, the heater wire 30, the heater covering layer 50, and the antibacterial and antiviral covering layer 20 are laminated in this order.

[0054] As shown in Fig. 3, the heater wires 30 are evenly arranged on the mattress body 10 and are connected to a controller 70 and a power plug 80 so that they can be driven by receiving power. The controller 70 and power plug 80 may be publicly known. The controller may also be arranged on the side of the thermal mattress. For ease of explanation, the heater covering layer 50 and the recessed grooves 40 are omitted in Fig. 3.

[0055] Furthermore, the antibacterial and antiviral coating layer 20 on the surface of the mattress body 10 on which the heater wire is provided has a large number of minute wrinkle-like convex portions 21 recessed toward the mattress body 10 side.

[0056] Here, since the antibacterial and antiviral plastic coating layer 20 is formed on the entire surface of the thermal mattress 100, the surface of the thermal mattress 100 will not be contaminated by viruses and can be used hygienically.

[0057] In addition, the plastic antibacterial and antiviral coating layer 20 reliably prevents stains from sweat, saliva, vomit, etc. from penetrating into the mattress body 10, so hygiene can be easily maintained by simply wiping the surface.

[0058] Furthermore, since the heater wire 30 is provided near the surface of the antibacterial and antiviral coating layer 20 that comes into contact with the human body, the human body is warmed appropriately and does not become too cold even during low-temperature dialysis. Furthermore, since the surface of the antibacterial and antiviral coating layer 20 that comes into contact with the human body has fine irregularities formed thereon, ventilation is ensured between the human body and the heating mattress, and no discomfort is caused during use.

[0059] Here, the method for imparting antibacterial and antiviral properties to the plastic constituting the coating layer is not particularly limited, and commercially available plastics that have been treated with antibacterial and antiviral properties may be used.

[0060] In addition, the plastic constituting the coating layer must be waterproof to prevent water from penetrating into the interior, and it is preferable that it is resistant to small wear during long-term use and to disinfecting and cleaning chemicals such as alcohol and hypochlorous acid water.

[0061] In this embodiment, the method of forming the fine irregularities is to attach the mattress body in a state where it is stretched in the longitudinal direction and the plastic film in a state where it is not stretched, and then to warp the plastic film by the contraction of the mattress body. The plastic film used has an adhesive layer formed on it, and radium ore powder is sprinkled on this adhesive layer before use.

[0062] (Embodiment 2) FIG. 4 is a diagram showing a schematic structure of a mattress body of a thermal mattress according to a second embodiment.

[0063] As shown in Figure 4, the mattress body 10 of the thermal mattress according to the present invention is made of a natural rubber foam. This mattress body 10 has a large number of protrusions 11 for dispersing body pressure aligned vertically and horizontally, as shown in Figure 4. For convenience, the figure shows a portion of the mattress body 10 in which there are three horizontal rows and five vertical rows of protrusions, but in reality, an appropriate number of protrusions 11 will be arranged depending on the width and length of the mattress body 10.

[0064] Although not shown in Fig. 4, the mattress body is covered with an antibacterial and antiviral coating layer, and heater wires are arranged in the valleys between the numerous protrusions of the mattress body, as in the first embodiment. The antibacterial and antiviral coating layer formed on this surface forms numerous protruding portions that follow the numerous protrusions.

[0065] In this embodiment as well, similarly to the above-mentioned first embodiment, high hygiene and a high thermal effect are ensured.

[0066] Furthermore, since a large number of protrusions 11 for dispersing body pressure are formed, body pressure is appropriately dispersed when the user sits on the mattress, and air permeability is secured between the human body and the heat mattress, preventing discomfort during use.

[0067] The shape and method of forming the numerous protrusions are not particularly limited, and any known shape and manufacturing method can be used.

[0068] Furthermore, by arranging the heater wire in the region between the protrusions, the discomfort felt by the user can be reduced without providing a recess.

[0069] In this embodiment, when obtaining a foamed natural rubber, particles of radium ore are mixed into the rubber material and then foaming treatment is carried out.

[0070] Example 1 A mattress body (1800×900×80 mm) made of a commercially available natural rubber foam was prepared. At this time, on one of the surfaces with the largest area, grooves with a width of 10 mm and a depth of 10 mm were formed at intervals of about 10 cm. A heater wire with a diameter of about 2.5 mm was placed on top of this groove, and a heater covering layer (width 10 mm, thickness 7.5 mm) made of a natural rubber foam was placed on top of this. After this, all surfaces were treated with an antibacterial and antiviral agent, and a commercially available polycarbonate-based polyurethane film (polyurethane layer thickness 40 μm) with an adhesive layer formed on one side was attached. At this time, when attaching to the surface where the heater wire was arranged, the natural rubber foam was stretched by 5% in the longitudinal direction (area stretched by 5%), and a film (1890 mm in length) that was 5% longer in the longitudinal direction than the opposite side was attached.

[0071] After the pulling force was removed, the film had numerous wrinkled irregularities extending in a direction approximately perpendicular to the longitudinal direction. Through these operations, an antibacterial and antiviral coating layer of polyurethane film was formed on a mattress body made of a natural rubber foam, thus obtaining a heating mattress according to Example 1. The wrinkled irregularities were 1.5 mm deepest, with a minimum spacing of 2 mm and a maximum spacing of 10 mm.

[0072] Example 2 A urethane foam was formed in a mold (1800×900×80 mm) in which a large number of convex portions were formed on one of the sides with the largest area, to produce a mattress body. The large number of convex portions were regularly aligned and formed as a large number of convex portions in the shape of a quadrangular pyramid with a flat apex, and the height of the convex portions was 40 mm, the width was 30 mm, and the depth was 30 mm. A heater wire was placed on the surface of the mattress body on which the convex portions were formed so as to be aligned along the gaps (valleys) between the convex portions. A polycarbonate-based polyurethane film (the same as in Example 1) on which an adhesive layer was formed was attached to all surfaces of the mattress body to produce a heating mattress according to Example 2.

[0073] At this time, when attaching to the surface on which many convex parts are formed, a polycarbonate-based polyurethane film is placed on top of it so that the adhesive layer is in contact with it, and the release layer on the opposite side of the adhesive layer is heated to 80 to 100°C with an iron, and then the release layer is peeled off, and the polyurethane film is pressed against the mattress body by hand to press it against the concave parts, so that the polyurethane film is attached to the many convex parts without bending upward. As a result, this polyurethane film has a shape with many convex parts that follow the many convex parts.

[0074] The uneven surface of the antibacterial and antiviral coating layer of the thermal mattress according to Examples 1 and 2 was wiped 100 times with a wet tissue soaked in a 70% ethyl alcohol solution, and then wiped 100 times with a dustcloth soaked in a commercially available chlorine-based disinfectant (containing sodium hypochlorite, effective chlorine concentration 200 ppm). Visual inspection of the surface of the coating layer before and after wiping revealed no wear on the coating layer, confirming that it had high chemical resistance.

[0075] Furthermore, when the heaters according to Examples 1 and 2 were driven, the temperature of the uneven antibacterial and antiviral coating layer could be maintained at approximately 37 degrees.

[0076] The thermal mattress of the present invention is suitable for use in medical and nursing care facilities, and can also be used at home.

[0077] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. For example, the heat mattress can be used hygienically without a cover, and does not exclude the use of a cover or the like on the heat mattress. [Industrial Applicability]

[0078] The thermal mattress according to the present invention can maintain a high level of hygiene without the use of a cover or the like, and has great industrial applicability. [Explanation of symbols]

[0079] 100 Heating Mattress 10 Mattress body 11 Many protrusions 20 Antibacterial and antiviral coating layer 21 Fine irregularities 30 Heater wire 40 Groove 50 Heater coating layer 70 Controller 80 Power plug

Claims

1. A thermal mattress comprising a substantially rectangular parallelepiped mattress body made of a foam material and a heater, The thermal mattress further includes an antibacterial and antiviral plastic coating layer provided to cover the surface of the thermal mattress; A heating mattress, wherein the heater is disposed adjacent one of the largest surfaces of the heating mattress, between the mattress body and the antibacterial and antiviral coating layer.

2. A recess for installing the heater is formed on the surface of the mattress body on which the heater is disposed.

2. The thermal mattress according to claim 1 .

3. the heater is a heater wire, A groove for installing the heater wire is formed on the surface of the mattress body on which the heater is arranged.

2. The thermal mattress according to claim 1 .

4. The mattress further includes a heater covering layer that is made of a foam material using the same material as the mattress body and covers the heater from the opposite side of the recess or the opposite side of the recess; The heater coating layer has through holes formed therein to promote heat conduction to the surface side. A thermal mattress according to claim 2 or 3.

5. The foam material constituting the mattress body contains radium.

2. The thermal mattress according to claim 1 .

6. The mattress further includes an adhesive layer including an adhesive for bonding the antibacterial and antiviral coating layer and the mattress main body, The adhesive layer comprises radium.

2. The thermal mattress according to claim 1 .

7. The foaming material constituting the heater covering layer contains radium.

5. The thermal mattress according to claim 4.

8. A number of protrusions for dispersing body pressure are formed on the surface of the mattress body on which the heater is disposed, The thermal mattress according to claim 1 , wherein the heater is disposed in a portion other than the protruding portion.

9. The surface of the antibacterial and antiviral coating layer that comes into contact with the heater has fine irregularities formed thereon.

2. The thermal mattress according to claim 1 .

10. The antibacterial and antiviral coating layer is formed of a plastic film, The minute irregularities are formed by bending of the plastic film.

10. The thermal mattress according to claim 9.

11. The plastic film is a polycarbonate-based polyurethane film. The thermal mattress according to claim 10.

12. The mattress body is made of a natural rubber foam. A thermal mattress according to claim 1, 2, 3, 5, 6, 8, 9, 10 or 11.

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