JP2933834B2 - Floor heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heater suitable for local floor heating, and more particularly to a floor heater which can be suitably used in a place where water is used or where dirt is likely to adhere. .

[0002]

2. Description of the Related Art Generally, a so-called electric carpet in which a heating element is incorporated in a fiber-based carpet such as nylon, polypropylene, acrylic, or polyester for local floor heating such as a dining room, a bedroom, a living room, and a foot in a kitchen washing area. Is used.

[0003]

However, in the above-mentioned electric carpet, since the surface is made of fibers having excellent water absorption and water retention properties, there is a problem in use in places where water is used, However, they have disadvantages such as difficulty in removing them when they adhere, and easy occurrence of mites.

[0004] By the way, conventionally used flooring materials whose surface is made of a synthetic resin such as polyvinyl chloride resin are suitable for use in places where water is used, are easy to remove dirt, and It has advantages such as the absence of mites.
However, when a synthetic resin having such excellent characteristics is used as a surface material of a carpet or mat for floor heating which requires the above-described heating element to be built-in, the surface material may be deteriorated by heat generated from the heating element. Conventionally, it has been considered extremely difficult to use a synthetic resin as a surface material of these floor heating tools.

Further, an organic fiber base fabric layer 2 is provided on a non-slip layer 11 which is a rubber layer as shown in FIG. 5, and a heating element 3a is provided on the surface of the base fabric layer 2 at an appropriate pitch (interval). There is also known a kitchen mat in which a synthetic resin layer 5 'is provided via a metal plate 12 on which a synthetic resin layer 5' is provided. According to this kitchen mat, the heat from the heating element 3a reaches the synthetic resin layer 5 'via the metal plate 12, so that the synthetic resin layer 5' is not deteriorated by the heat. There is a problem that not only the whole becomes heavy, but also there is no flexibility and storage is difficult.

The present invention enables the use of a synthetic resin as a surface material, and therefore can be suitably used where water is used.
Another object of the present invention is to provide a floor heater that is easy to remove dirt, is hygienic without generating mites, is lightweight, and is convenient for storing and storing.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, the floor heater of the present invention comprises an organic fiber base fabric layer and a heat-resistant fabric.
Sheet layer composed of organic fibers and heating element
A synthetic resin surface layer that is not easily degraded by heat from the substrate, and a heating element is disposed between the organic fiber base fabric layer and the sheet base layer.

Hereinafter, the present invention will be described with reference to the drawings.
FIG. 1 is a partially enlarged cross-sectional view showing a basic configuration of an embodiment of a floor heater of the present invention. In the figure, 1 is a floor heater of the present invention, 2 is an organic fiber base fabric layer, and 3 is A fabric layer (hereinafter, referred to as a “heat fabric layer”) in which a heating element 3 a such as a heating wire is embedded in an organic fiber, and 4 is made of a heat-resistant organic fiber.
That sheet substrate layer (hereinafter referred to as "sheet base layer"), 5
Degradation hard synthetic resin surface layer by the heat from the heating element (hereinafter
Below, it is called "synthetic resin surface layer." Although FIG. 1 shows an example in which the heating cloth layer 3 is used, in the present invention, instead of the cloth layer 3, a heating wire, a tropical body, and other various types of heating elements are replaced with an organic fiber cloth. It is good also as an aspect (illustration omitted) directly clamped between the layer 2 and the sheet base material layer 4. In the following description, the configuration shown in FIG. 1 and the configuration not shown will be described together.

As the synthetic resin constituting the synthetic resin surface layer 5, any one which has been conventionally used as a surface layer of a synthetic resin flooring can be used, but it is excellent in heat resistance. and select the one that hardly deteriorated by heat from the heating fabric layer 3 (or heating element). In particular,
Any synthetic resin generally used such as polyvinyl chloride resin such as polyvinyl chloride, acrylic resin, vinyl acetate resin, polyethylene, polypropylene, ethylene-vinyl acetate copolymer resin, urethane resin, etc. However, a vinyl chloride resin is particularly preferable.

The above-mentioned vinyl chloride resins include, in addition to polyvinyl chloride resin, vinyl chloride and monomers such as ethylene, vinyl acetate, vinyl ether, maleic ester, acrylic acid, methacrylic acid, acrylic ester, methacrylic ester and the like. Or a blend of these with an acrylic resin or a urethane resin.

The synthetic resin constituting the synthetic resin surface layer 5 may contain, if necessary, a plasticizer, a stabilizer, a filler, a foam stabilizer, a viscosity modifier, an antistatic agent, a fungicide, a coloring agent, or an ultraviolet ray. Various compounding agents such as absorbents may be added. The amount of the above additive may be the same as in the case of a conventional synthetic resin flooring or the like.

Specific examples of the above plasticizer include dibutyl phthalate, diisobutyl phthalate, dioctyl phthalate, di-2-ethylhexyl phthalate, didodecyl phthalate, butyl benzyl phthalate, diisodecyl phthalate, dinonyl phthalate, diisononyl phthalate, and octyl capryl phthalate. General phthalate plasticizers represented by, for example, dicyclohexyl phthalate, dimethyl glycol phthalate, ethyl phthalyl ethyl glycolate, methyl phthalyl ethyl glycolate, butyl phthalyl ethyl glycolate; methyl acetyl ricinolate, dioctyl adipate, Dioctyl azelate, dibutyl sebacate, dioctyl sebacate, triacetylglycerin, glycerol sebacate, diisodecyl General fatty acid ester-based plasticizers represented by succinate, diisodecyl adipate, succinic acid mixed alkyl ester, etc .; tributyl phosphate, tricresyl phosphate, trixylenyl phosphate, triphenyl phosphate, trichloroethyl phosphate, trioctyl phosphate, triethyl phosphate , Diphenyl cresyl phosphate, monophenyl dicresyl phosphate, dicresyl monoxylenyl phosphate, monocresyl dixylenyl phosphate, arylalkyl phosphate, diphenyl monoxylenyl phosphate, monophenyl dixylenyl phosphate, etc. Phosphate ester plasticizers; Epoxy plasticizers represented by epoxidized soybean oil, epoxidized linseed oil, etc .; Polymeric plasticizers polyester plasticizers typified by such adipate;
Chlorinated paraffin and the like can be mentioned. The above plasticizers may be used alone or as a mixture of two or more.

Specific examples of the stabilizer include cadmium, zinc, barium, calcium, strontium, aluminum, magnesium, cerium, sodium,
In addition to metal-based stabilizers that are metal compounds such as lead and tin, organic phosphoric acid compounds, polyhydric alcohols, epoxy compounds and the like can be mentioned. The above stabilizers may be used alone or as a mixture of two or more.

In the present invention, in order to prevent the synthetic resin surface layer 5 from deteriorating due to heat from the heating cloth layer 3 (or heating element), a barium-zinc compound and a sodium perchlorate polyol complex salt are used. Preferably, if the content is too small, the desired effect cannot be obtained, and if the content is too large, the effect is saturated. Therefore, 1 to 7 parts by weight of the barium-zinc compound is used with respect to 100 parts by weight of the resin. Parts by weight, preferably 0.05 to 2 parts by weight of a sodium perchlorate polyol complex salt.

Specific examples of the filler include calcium carbonate, magnesium carbonate, clay, talc, silica, diatomaceous earth, silica sand, pumice powder, slate powder, mica powder, asbestos, aluminum hydroxide, magnesium hydroxide, Inorganic fillers such as aluminum oxide, aluminum sulfate, barium sulfate, calcium sulfate, glass spheres, foam glass spheres, fly ash spheres, volcanic glass hollow bodies (shirasu balloons), inorganic fibers such as glass fibers and carbon fibers; (Cellulose powder), organic fibers such as polyvinyl alcohol fibers, and organic fillers such as cork powder, wood powder, thermosetting resin powder, thermosetting resin hollow spheres, and crosslinked thermoplastic resin powder. The above fillers may be used alone or in combination of two or more.

In the present invention, far infrared rays such as silica, alumina, iron oxide, manganese oxide, cobalt oxide, titanium oxide, aluminum titanate, silicon nitride, zircon, zircon sand, calcium oxide, magnesium oxide, and barium sulfate are used. It is desirable to use a radiating filler because the floor heater can be given an effect of warming the body more healthily. These far-infrared radiation fillers may be used alone or in combination of two or more.

Specific examples of the foam stabilizer include silicone foam stabilizers such as methylsiloxane emulsion and methylsiloxane solution; fluorine foam stabilizer; fatty acid condensate; alkyl allyl sulfonate foam stabilizer; oleic acid and ricinol. Metal soaps of acids; guanidine salts; quaternary ammonium compounds; aldehyde-amine condensates. The foam stabilizers may be used alone or in combination of two or more.

Specific examples of the viscosity modifier include volatile diluents such as gasoline, octane, benzene, xylene, naphtha, methyl ethyl ketone, methyl isobutyl ketone, dodecylbenzene derivatives, didodecylbenzene derivatives, and mineral spirits; And metal soaps such as aluminum stearate, aluminum oleate and zinc stearate; and thickeners such as silica, bentonite, and polymerized oil. The viscosity modifiers may be used alone or in combination of two or more.

Specific examples of the above antistatic agent include ether antistatic agents such as polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, and polyoxyethylene polyoxypropylene ether; polyoxyethylene alkyl ester, polyhydric alcohol Ester antistatic agents such as partial ester compounds of fatty acids and fatty acids; polyoxyethylene sorbitan fatty acid esters,
Polyoxyethylene sorbitol fatty acid ester, polyoxyethylene mannitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol monofatty acid ester, etc., in which the number of moles of ethylene oxide or propylene oxide added is 1 to 20, polyhydric alcohol Is one selected from sorbitan, sorbitol, mannitol, mannitol, glycerin, diglycerin, pentaerythritol,
The fatty acid includes an ether ester antistatic agent having 12 to 22 carbon atoms. The above antistatic agents may be used alone or in combination of two or more.

As the above-mentioned fungicide, specifically, 10,1
0′-oxybisphenoxyarsine, N- (fluorodichloromethylthio) -phthalimide, 2- (4-thiazole) benzimidazole, N-trichloromethylmercapto-4-cyclohexane-1,2-dicarboximide, 2,4,4 Organic fungicides such as 5,6-tetrachloroisophthalonitrile; and inorganic fungicides such as barium metaborate. The above fungicides may be used alone or in combination of two or more.

The synthetic resin surface layer 5 having the above composition is not limited to a single layer as shown in FIG. 1, but may be a plurality of layers. It can be prepared with a synthetic resin having a composition.

When the synthetic resin surface layer 5 is composed of a plurality of layers, it is composed of, for example, a transparent or translucent upper layer 5b and an intermediate layer 5a located thereunder as shown in FIG. A printing layer 5c may be provided by means such as printing. Further, the intermediate layer 5a is formed of a foaming agent-containing composition, and the printing layer 5c is formed of a foaming inhibitor and / or
Alternatively, a three-dimensional design effect can be provided by heating and foaming the intermediate layer 5a by including a foaming accelerator (this three-dimensional design effect can be applied to the surface of the floor heater of the present invention through the upper coating layer 5b). appear). In addition, the wear resistance of the obtained floor heater 1 can be improved by forming the upper layer 5b as a wear-resistant layer.

The synthetic resin surface layer 5 or the synthetic resin surface layer 5 is not only used for obtaining the three-dimensional design effect as described above, but also for obtaining, for example, a heat retaining effect or for increasing a sense of volume. Any of the constituent synthetic resin layers may be a foamed layer. Examples of means for forming a foamed layer include N, N'-dinitrosopentamethylenetetramine,
N, N'-dimethyl-N, N'-dinitrosoterephthalamide, azodicarbonamide, azobisisobutyronitrile, benzenesulfonylhydrazide, p, p'-
Foaming with a pyrolytic foaming agent such as oxybis (benzenesulfonyl hydrazide), benzene-1,3-disulfonyl hydrazide, and toluenesulfonyl hydrazide; microcapsules comprising a liquid hydrocarbon such as butane or isobutane made of a thermoplastic synthetic resin shell Any means such as foaming with a thermal expansive agent sealed in a tube; mechanical foaming; or a combination of these means may be employed.

Further, the synthetic resin surface layer 5 may be made of colored synthetic resin chips of a plurality of colors, and by doing so, the design of the surface of the floor heater 1 can be improved.

Further, when the synthetic resin surface layer 5 has a plurality of layers, a fibrous base material used for a conventional synthetic resin flooring may be interposed between the synthetic resin layers constituting the synthetic resin surface layer 5. it can. At this time, it is composed of at least one selected from glass fiber, pulp, organic fiber, etc.
By using a fibrous base material having excellent dimensional stability in which the knitting density and the fiber density are adjusted, it is possible to prevent a change in the dimensions of the floor heater 1 due to the influence of heat from the heating cloth layer 3 (or the heating element). In addition, dimensional stability can be improved. The fibrous base material may be interposed between the lower surface of the single or multiple layers of the synthetic resin surface layer 5, that is, between the synthetic resin surface layer 5 and the sheet base layer 4. The fibrous base material may be impregnated with a synthetic resin constituting the synthetic resin surface layer 5 or another appropriate synthetic resin.

Further, the synthetic resin surface layer 5 is provided with a printing layer by means of gravure printing or the like, or a surface treatment layer as in the case of the conventional synthetic resin flooring material. You may.

The sheet base layer 4 located below the synthetic resin surface layer 5 disperses the heat from the heating cloth layer 3 (or the heating element) in the horizontal direction of the floor heater 1 so that the temperature distribution on the surface is reduced. It is provided for the purpose of achieving uniformity or for preventing projections and ridges of the heating element 3a (or the heating element directly sandwiched) from appearing on the surface of the floor heater 1 and has heat resistance. Ru is composed of organic fibers. Specifically the organic fibers having heat resistance, polyethylene, and a polypropylene, nylon, acrylic, polyester, etc., that use the sheet substrate made of fibers composed mainly of one or more selected from these. In addition, by including 5 to 20% by weight of a fiber having a melting point lower than that of the organic fiber such as polyethylene, polypropylene, polyester, or polyamide in the organic fiber, the heat resistance is improved. A certain organic fiber is firmly adhered to each other to improve the strength of the sheet base material, thereby producing an effect.

The thickness of the sheet base layer 4 is 1 to 10 mm,
Preferably it is 2 to 6 mm. If the sheet base layer 4 is too thin, it becomes difficult not only to disperse the heat from the heating cloth layer 3 (or the heating element) in the horizontal direction, but also to generate the heating element 3a.
The projections or ridges of the heating element (or the heating element directly sandwiched between them) appear on the surface of the floor heater 1, and if it is too thick, the heating cloth layer 3
The heat from the (or heating element) does not reach the synthetic resin surface layer 5, and does not serve as a floor heater. Further, the density of the sheet base layer 4 is 0.01 to 0.5 g / cm ³ ,
Preferably from 0.03~0.2g / cm ^3. If the density is too low, sag may occur due to local load during use,
The sheet base layer may cause delamination. If the sheet base layer is too high, the sheet base layer becomes too hard, and operations such as winding and laying are difficult, and the cost is high.

The heating cloth layer 3 shown in FIG. 1 has a role of holding the heating element 3a and dispersing the heat from the heating element 3a in the horizontal direction. The organic fibers forming the cloth layer are preferably made of heat-resistant organic fibers, similarly to the sheet base layer 4. The cloth layer composed of organic fibers has a density of 0.01 to 0.5 g / cm.
³ , preferably 0.015 to 0.20 g / cm ³ , and a thickness of 0.1 to 1.0 mm, preferably 0.15 to 0.5 m
m is preferable. As in the case of the sheet base layer 4, if the density is too low, sagging may occur due to a local load during use, or the cloth layer may cause delamination. Not only operation such as laying becomes difficult, but also cost increases.

The heating elements 3a in the heating cloth layer 3 described above,
Alternatively, a heating element directly sandwiched between the organic fiber cloth layer 2 and the sheet base layer 4 (not shown) can be used for 100 watts to 1350 watts depending on the size of the floor heater. The size of the heating element is independent of the wattage, but in the case of the heating wire, in the present invention, it is 2.0 to 3.5 mm.
It is preferable to use a material having a diameter of about φ (there is no standard exceeding 3.5 mmφ, and if the diameter is less than 2.0 mmφ, there is a risk of disconnection due to insufficient strength). As a covering material for the heating element, a heat-resistant vinyl chloride resin, silicone rubber, or the like is usually used. The pitch of the heating elements (interval between the heating elements) is 10 to 50 mm, preferably 25 to 40 mm in the case of the heating wire.
mm is suitable.

The organic fiber base fabric layer 2 of the present invention comprises a heating fabric layer 3
(Or heating element) is a layer provided for the purpose of preventing heat generated from escaping downward.
If the density is too high, the heat generated from the heating cloth layer 3 (or the heating element) tends to escape below, and if the thickness is too thick,
Since the total thickness of the floor heater 1 becomes too thick, it becomes difficult to store and store the floor heater 1 and the cost increases. Therefore,
The thickness is 2 to 10 mm, preferably 5 to 7 mm, and the density is 0.02 to 0.5 g / cm ³ , preferably 0.04 to
Desirably, it is 0.14 g / cm ³ .

The floor heater 1 of the present invention is obtained by laminating and integrating each of the above layers 2 to 5 (or each of these layers and a heating element). At this time, (1) each of the layers (or These layers and the heating element) may be laminated and integrated using an adhesive or the like, or (2) the synthetic resin surface layer 5 and the sheet base layer 4 may be laminated and integrated, and this may be combined with the heating cloth layer 3 ( Or a heating element) and an organic fiber base fabric layer 2 to be laminated with an adhesive or the like, or (3) the sheet base layer 4 and the heating cloth layer 3 (or the heating element) and the organic material. The fiber base fabric layer 2 and the synthetic resin surface layer 5 may be prepared as an integrated product, and the synthetic resin surface layer 5 may be laminated or integrated.

The above-mentioned sheet base layer 4 and synthetic resin surface layer 5
In order to laminate and integrate, any means may be used, for example, urethane resin adhesive, vinyl chloride resin adhesive, vinyl acetate resin adhesive, synthetic rubber adhesive,
A method using a known adhesive such as an acrylic resin-based adhesive or an epoxy resin-based adhesive is preferable, and in particular, a urethane-based adhesive obtained by reacting a polyol component mainly containing a polycarbonate-based polyol with an isocyanate component, or It is preferable to use an adhesive having excellent heat resistance and hydrolysis resistance, such as a vinyl chloride resin paste. The means for lamination and integration may be a so-called dry lamination method or a wet lamination method.

[0034]

The floor heater of the present invention is suitable for use in places where water is used because the surface layer is made of synthetic resin, and can be easily removed even when dirt adheres, and it also removes ticks and the like. There is no problem such as occurrence.

Moreover, in the floor heater of the present invention, the sheet base layer (or the base layer and the fibrous base) exists between the heating cloth layer or the heating element and the synthetic resin surface layer. The synthetic resin surface layer hardly deteriorates due to heat, and can be used for a long time. At this time, by setting the thickness and density of the sheet base material layer or the density of the organic fiber cloth constituting the heating cloth layer to a specific value, heat from the heating element is dispersed in these layers in the horizontal direction. Therefore, the above effect is further improved.

[0036]

【Example】

Example 1 The floor heater 1 of the present invention having the configuration shown in FIG. 3 was prepared as follows. First, a mixed paper 6 made of glass fiber, pulp, a filler, and a binder (latex) (having a thickness of 0.1 mm).
25 mm, weighing 120 g / m ² ).
After the grain printing 5c is applied to the surface of the synthetic resin intermediate layer 5a by gravure printing, a 0.3 mm thick abrasion-resistant transparent overcoat made of a vinyl chloride resin composition having the composition shown in Table 2 is applied. The layer 5b was formed, and a woodgrain-like hairline embossed pattern was formed on the surface to prepare a synthetic resin surface layer 5.

[0037]

[Table 1]

[0038]

[Table 2]

Next, an adhesive mainly composed of a polycarbonate polyol urethane resin having the composition shown in Table 3 was applied to the back surface of the synthetic resin surface layer 5 obtained as described above (that is, the surface of the mixed paper 6). Then, the organic fiber base fabric layer 2 (mainly made of polyester fiber, thickness 6 m)
m, density 0.075 g / cm ³ ), organic fiber cloth (polyester fiber, thickness: 30 mm) embedded with heating wires 3a (for 800 watts with a thickness of 2.5 mmφ, using a heat-resistant vinyl chloride resin-coated wire) at a pitch of 30 mm. 0.2 mm, density 0.0
Heat generation cloth layer 3 and sheet base layer 4 composed of 15 g / cm ³ )
(Mainly polyester fiber << contains 10% by weight of low melting point and heat fusible polyester fiber >>, thickness 3.0 mm, density 0.05 g / cm ³ ). 3 was obtained.

[0040]

[Table 3]

With respect to the floor heater 1 of the present invention obtained as described above, which is rich in surface decoration, when a current is passed through the heating wire 3a, the surface of the synthetic resin surface layer 5 becomes 35 in about one minute.
The temperature was raised to ° C., and a suitable use state for floor heating could be obtained. Next, this energized state is referred to as (the synthetic resin
After maintaining the surface of the synthetic resin surface layer 5 for 10 hours while adjusting the temperature with a thermostat so that the temperature of 35 ° C. is maintained at 35 ° C., deformation, dimensional fluctuation, melting, wrinkling, No other abnormalities were found,
A beautiful surface condition was maintained. On the other hand, while the above-mentioned energized state was maintained for 10 hours, the operation of dropping a few drops of water at a plurality of appropriate locations on the synthetic resin surface layer 5 was repeated every hour, and the surface state was observed after 10 hours. The water droplets were almost evaporated, and, similarly to the above, there was no deformation, dimensional fluctuation, melting, wrinkles or other abnormalities, and the surface condition was beautiful.

When the sewage used for floor cleaning was used as the above-mentioned water droplets, dirt adhered to the trace of the evaporation of the water. This dirt can be easily removed by wiping with water. Was.

Example 2 A floor heater 1 of the present invention having the structure shown in FIG. 4 was prepared as follows. Mixed paper 6 made of glass fiber, pulp, and binder (latex) (thickness 0.35 mm, basis weight 50 g)
/ M ² ), a sheet impregnated with the vinyl chloride resin composition shown in Table 1 of Example 1 was formed, and one side of this sheet was 0.3 m thick made of the vinyl chloride resin composition shown in Table 1
m of synthetic resin intermediate layers 5a were formed. After a grain print 5c is applied to the surface of the synthetic resin intermediate layer 5a by gravure printing, a 0.3 mm thick abrasion-resistant transparent top made of a vinyl chloride resin having the composition shown in Table 2 of Example 1 is used. An attraction layer 5b was formed. On the other surface, a 1.05 mm thick synthetic resin layer (back surface layer) 5d made of the vinyl chloride resin composition shown in Table 1 was formed. On the surface of the transparent undercoat layer 5b,
The synthetic resin surface layer 5 was formed by applying a wood grain hairline embossed pattern.

On the back surface of the synthetic resin surface layer 5 obtained as described above (the surface of the back surface layer 5d made of synthetic resin), a polycarbonate polyol polyurethane resin having the composition shown in Table 3 of Example 1 is mainly used. An organic fiber base fabric layer 2 (mainly composed of polyester fiber, thickness of 7 mm, density of 0.14 g / cm ³ ) prepared by applying an adhesive and separately forming the same, a heating wire 3
a (for 800 watts) embedded organic fiber cloth (mainly polyester fiber, thickness 0.5 mm, density 0.20 g / cm
³ ) The heat generation cloth layer 3 and the sheet base layer 4 (polyester fibers mainly).
0% by weight >>, thickness 6.0 mm, density 0.20 g / c
m ³ ) were laminated and integrated with a laminate obtained by sequentially laminating m ³ ) to obtain the floor heater 1 of the present invention shown in FIG.

With respect to the floor heater 1 of the present invention having a high decorative surface obtained as described above, when an electric current was passed through the heating wire 3a, the synthetic resin surface layer 5 was formed in about 1 minute in the same manner as in the first embodiment. The surface of the synthetic resin surface was heated to 35 ° C., and this energized state was maintained for 10 hours in the same manner as in Example 1. Then, the surface state of the synthetic resin surface layer 5 was observed. Was not observed, and a beautiful surface state was maintained.
Further, the same water drop or sewage drop experiment as in Example 1 was performed while the above-mentioned energized state was maintained for 10 hours, and the same result as in Example 1 was obtained.

Example 3 A floor heater 1 of the present invention having the structure shown in FIG. 3 was prepared as follows. The same synthetic resin intermediate layer 5a as in Example 1 was formed on the same mixed paper 6 as in Example 1, and the surface of the intermediate layer 5a was
A surface layer 5 made of a synthetic resin was prepared by forming a 0.3 mm thick abrasion-resistant transparent overcoat layer 5b made of the vinyl chloride resin composition having the composition shown in Table 4.

[0047]

[Table 4]

[0048] The thus obtained back surface of the synthetic resin surface layer 5 (i.e., the back surface of the mixed paper 6), the adhesive a polycarbonate polyol polyurethane resin consisting formulations shown in Table 3 of Example 1 mainly Is applied and the organic fiber base fabric layer 2 (mainly made of polyester fiber,
Thickness 0.2 mm, density of 0.095 g / ^cm 3), organic fiber cloth (polyester fibers principal that buried the heating wire 3a (for 800 watts), thickness 0.2 mm, density of 0.095 g /
cm ³ ), a heat-generating cloth layer 3, a sheet base layer 4 (mainly composed of polyester fiber << containing 10% by weight of a low-melting and heat-fusible polyester fiber >>), thickness 4.0 mm, density 0.10 g
/ Cm ³ ) and a laminate obtained by sequentially laminating the laminates, thereby obtaining the floor heater 1 of the present invention shown in FIG. 3.

When electric current was passed through the heating wire 3a of the floor heater 1 of the present invention obtained as described above, the surface of the synthetic resin surface layer 5 was changed in about one minute as in Examples 1 and 2. After the temperature was raised to 35 ° C., and this energized state was maintained for 10 hours as in Examples 1 and 2, the surface state of the synthetic resin surface layer 5 was observed. No abnormality was observed, and a beautiful surface state was maintained. Further, while the above-mentioned energized state was maintained for 10 hours, the first and second embodiments were used.
The same experiment as in Examples 1 and 2 was obtained when the same water drop or sewage drop experiment was performed. In this example, since the far-infrared radiating substance is blended in the synthetic resin surface layer 5, the floor heater 1 of the present invention is used (while the floor heater 1 is energized), Far-infrared rays are radiated to improve health, reduce symptoms such as stiff shoulders, and have various other effects.

[0050]

The floor heater of the present invention adopts the above-mentioned constitution. (1) Compared with a conventional electric carpet having a fibrous surface, the floor heater has excellent stain resistance and removes adhered dirt. Is easy. (2) It is sanitary without mites during use. (3) Compared with a conventional electric carpet having a fibrous surface, the effect of dissipating heat indoors is excellent. (4) Since a design can be expressed as desired by gravure printing or the like, a highly decorative product can be obtained. (5) For example, a far-infrared ray emitting substance and other appropriate fillers can be added to the synthetic resin surface layer, and various characteristics can be imparted to the floor heater of the present invention. (6) The sheet base layer and the organic fiber base fabric layer constituting the floor heater have excellent shock absorption. And the like. Therefore, the floor heater of the present invention can be suitably used for local heating of a place where water is used, such as a dining room, a bedroom, a living room, a foot of a kitchen washroom, or a place where dirt easily adheres. it can.

[Brief description of the drawings]

FIG. 1 is a partially enlarged sectional view showing a basic configuration of an embodiment of a floor heater of the present invention.

FIG. 2 is a partially enlarged sectional view showing an example of an application configuration of the floor heater of the present invention.

FIG. 3 is a partially enlarged cross-sectional view showing one example of the floor heater of the present invention prepared in the examples.

FIG. 4 is a partially enlarged cross-sectional view showing another example of the floor heater of the present invention prepared in the example.

FIG. 5 is a sectional view showing a conventional kitchen mat with a built-in heating element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor heating tool 2 Organic fiber base fabric layer 3 Heating fabric layer 3a Heating element 4 Sheet base material layer 5 Synthetic resin surface layer 6 Fiber base material

Continued on the front page (72) Inventor Terashima Shrine 1-1-1, Omorinishi, Ota-ku, Tokyo Inside Nihon Denshi Co., Ltd. (72) Inventor Takao Sonehara 1-1-1, Omorinishi, Ota-ku, Tokyo Japan (56) References JP-A-63-232287 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47G 27/02 B32B 27/12 B32B 27/18

Claims (14)

(57) [Claims] 1. Organic fiber base fabric layer, heat-resistant organic fiber
Sheet base layer composed of
A floor heater in which a synthetic resin surface layer that is less likely to deteriorate is sequentially laminated, and a heating element is disposed between the organic fiber base fabric layer and the sheet base layer. 2. A synthetic resin surface layer comprising: a vinyl chloride resin;
The floor heater according to claim 1, comprising a vinyl chloride resin composition mainly comprising a plasticizer and a stabilizer. 3. As a stabilizer, 1 to 7 parts by weight of a barium-zinc compound and 0.0
The floor heater according to claim 2, comprising 5 to 2 parts by weight of a sodium perchlorate polyol complex salt. 4. The floor heater according to claim 1, wherein the synthetic resin surface layer has a plurality of layers, and a fibrous base material is interposed between any of the synthetic resin layers constituting the synthetic resin surface layer. 5. The floor heater according to claim 1, wherein a fibrous base material is interposed between the synthetic resin surface layer and the sheet base material layer. 6. The floor heater according to claim 4, wherein the fibrous base material is impregnated with a synthetic resin. 7. The floor heater according to claim 4, wherein the fibrous base material has excellent dimensional stability. 8. The floor heater according to claim 1, wherein the sheet base material layer is an organic fiber layer having a thickness of 1 to 10 mm and a density of 0.01 to 0.5 g / cm ³ . 9. The sheet base layer is composed of heat-resistant organic fibers mainly composed of at least one selected from polyethylene, polypropylene and polyester.
The described floor heater. 10. An organic fiber constituting the sheet base layer, wherein 5-20 fibers having a lower melting point and a higher thermal fusibility than the organic fiber are contained.
10. The floor heater according to claim 8, wherein the floor heater is contained by weight. 11. A heating element having a density of 0.01 to 0.5 g / c.
by buried in the organic fiber cloth m ³ and the fabric layer, floor heating device according to claim 10, wherein comprising disposed between the organic fiber base fabric layer cloth layer and the sheet base material layer. 12. The floor heater according to claim 1, wherein the synthetic resin surface layer and the sheet base material layer are bonded with a urethane-based adhesive or a vinyl chloride paste-based adhesive. 13. The floor heater according to claim 1, wherein the synthetic resin layer contains a far-infrared radiating substance. 14. The material for emitting far-infrared rays is selected from silica, alumina, iron oxide, manganese oxide, cobalt oxide, titanium oxide, aluminum titanate, silicon nitride, zircon, zircon sand, calcium oxide, magnesium oxide, and barium sulfate. 14. One or more of the following:
The described floor heater.