JPH0342197Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a heat generating floor finishing material.

Conventional technology and its problems Conventionally, heat-generating floor finishing materials have been made by laminating and integrating a wood decorative board on the top surface of a surface heating element in order to take advantage of the tactile feel, cosmetic properties, and walkability of wood. The wood decorative board, which is maintained at a moisture content of 5 to 15%, releases moisture and shrinks as it is heated by the surface heating element. When the wood decorative board repeatedly contracts and expands due to repeated heating and cooling, warping, cracks, and gaps are likely to occur in the wood decorative board, reducing the smoothness and aesthetic appearance of the floor surface. There was a problem that the durability decreased.

Means for Solving the Problems In order to solve the above-mentioned problems, the heat-generating floor finishing material according to the present invention has a wood decorative board, at least the surface of which is made of acetylated wood, laminated and integrated on the top surface of the surface heating element. There is a structure.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings of FIGS. 1 and 5.

The heat generating floor finishing material 1 according to the first embodiment is
As shown in the figure, a wooden decorative board 4 whose entire layer is made of acetylated wood 4a is laminated and integrated on the upper surface of a surface heating element 2.

The surface heating element 2 is made by covering a surface heating sheet 2a with a resin sheet 3 such as a PVC sheet to make it waterproof and insulated, and further, a metal sheet (not shown) is attached and integrated on the upper surface of the resin sheet 3. By doing so, the heat distribution is made uniform, and the resin sheet 3
This also prevents the surface heating sheet 2a from being damaged by external force.

The wooden decorative board 4 is made of a single board or a laminated unit of acetylated wood 4a having a thickness of 0.5 mm to 8 mm, and has improved cosmetic properties and scratch resistance by painting or impregnating with resin.

The acetylated wood 4a has improved dimensional stability against moisture absorption and desorption without impairing the cosmetic properties, feel, and walkability inherent to wood. for example,
When air-dried acetylated wood and untreated wood are laminated with surface heating elements and heated and cooled repeatedly every few hours to a day, 0-5% of the acetylated wood and 0% to 5% of the untreated wood are heated. The moisture content changes repeatedly in a range of 2 to 15%, and as a result, the average dimensional change rate of the heat-generating floor finish made by laminating and integrating acetylated wood is the same as that of the heat-generating floor finish made by laminating and integrating untreated wood. It was about 1/10 of the average dimensional change rate of the material.

As a result, if acetylated wood is used for decorative wood boards, there is no large dimensional change due to heating or cooling, so there is an advantage that cracks and voids can be effectively prevented from forming.

The acetylated wood 4a is obtained by reacting a reaction solution with a hydroxyl group in the wood component of a wood veneer under a catalyst or without a catalyst, and replacing the hydroxyl group with an acetyl group. Examples of the catalyst include alkali metal acetic acids such as potassium acetate, and examples of the reaction solution include acetic anhydride and chromacetic anhydride.

Moreover, as shown in FIG. 2, the wood decorative board 4 is
The acetylated wood 4a may be integrally attached to the upper surface of a wooden board made of untreated plywood, particle board, or the like.

FIG. 3 shows a floor structure using the heat-generating floor finishing material 1 according to the present invention, in which a subfloor material 10 is laid on the floor joists 11 installed in parallel, and the heat-generating floor finishing material 1 according to the present invention is placed on the top surface of the subfloor material 10. It was installed. In addition,
2b is a cord pulled out from the surface heating element 2.

FIG. 4 shows a second embodiment, in which the upper surface of the surface heating element 2 is laminated and integrated with a wooden decorative board 4 whose entire layer is made of acetylated wood 4a, and the lower surface of the surface heating element 2 is made of plywood or particles. Heat generating floor finishing material made by laminating and integrating boards, insulation boards, inorganic fiberboards, etc. or composites thereof 1
It is.

In addition, as shown in Fig. 5, there are male fruit parts 1 on both sides.
The heat generating floor finishing material 1 according to the present invention may be laminated and integrated on the base material 13 having the female part 3a and the female part 13b. Note that 13c and 13d indicate insulation board and plywood, respectively.

In this way, the necessary strength as a flooring material can be ensured, and there is an advantage that it can be laid directly on the floor joists.

Effects of the invention As is clear from the above explanation, according to the invention, the heat-generating floor finishing material made by laminating and integrating the acetylated wood is more effective at absorbing and releasing energy through heating and cooling than the one using untreated wood. Moisture is small, and the average dimensional change rate is about 1/10 of that when using untreated wood.

Therefore, if the heat-generating floor finishing material according to the present invention is laid on the floor subfloor, the wood decorative board of the present invention will be less likely to warp, crack, or have gaps even if it is repeatedly heated and cooled by the surface heating element. Good appearance and smoothness are maintained, and durability is improved.

Further, according to the present invention, since the acetylated wood does not impair the original texture, cosmetic properties, and walkability of wood, it is possible to obtain a heat-generating floor finishing material with good livability.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, FIGS. 1 and 2 are sectional views, FIG. 3 is a partially cutaway perspective view showing an example of use, and FIGS. 4 and 5. The figures are a sectional view and a perspective view showing a second embodiment of the present invention. 1... Heat generating floor finishing material, 2... Surface heating element, 2a
...Face heating sheet, 3...Resin sheet, 4...Wood decorative board, 4a...Acetylated wood.

Claims (1)

[Scope of utility model registration request] A heat generating floor finishing material comprising a wood decorative board, at least the surface of which is made of acetylated wood, laminated and integrated on the top surface of a surface heating element.