JP2603878B2 - Furniture board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a furniture plate excellent in fire prevention performance.

<Prior Art> Furniture such as storage furniture and kitchen furniture used in ordinary households is usually made of at least a wooden body in order to satisfy demands for workability, design, feel, weight, price, and the like.

By the way, in house construction, from the viewpoint of fire prevention,
Restrictions are imposed on the structure and members to be used by the Building Standards Law, interior restrictions are imposed on the interior of the room, and the use of non-combustible or semi-combustible materials is required for wall materials.

However, if a fire actually occurs in a room, it will ignite the furniture installed in the room and the items stored in the furniture, and the fire will be strengthened. There was a problem. Ignition of furniture etc. is the biggest cause of fire spread.

<Problems to be Solved by the Invention> Accordingly, an object of the present invention is to provide a board material for furniture which is excellent in fire prevention performance even though the main body is basically made of wood.

<Means for Solving the Problems> The above-mentioned problem is solved by a non-combustible wood veneer in which cell walls and / or inner wall surfaces are filled or fixed with a non-combustible inorganic compound. The above problem is solved by a board material for furniture, which is made of a decorative board adhered to the entire surface of the table.

In general, furniture, such as doors, doors, drawers, and shelf boards, are appropriately incorporated into the furniture body, which generally consists of a top plate, a bottom plate, a side plate, and a back plate, and further, fittings such as hinges, handles, rails, and door carts are attached. Formed.

The decorative board used as a board for furniture of the present invention is a non-combustible wood veneer in which cell walls and / or inner wall surfaces are filled or fixed with a non-combustible inorganic compound. Alternatively, it is attached to the front and back surfaces or the entire front surface including the edge of the wood.

A wood veneer is obtained by cutting a raw wood or flitch of a tree material such as cedar, pine, toga, cypress and the like using a cutting device such as a rotary lace, a half rotary lace, and a slicer. The wood veneer has a large number of cell holes formed of wood cells, conduit holes or temporary conduit holes, and these cell holes are opened on the surface thereof, or countless cracks appear.

The wood veneer obtained is dried and its moisture content is 7-15%
Adjusted to the extent.

The dried wood veneer is filled with a non-combustible inorganic compound in the voids such as cell holes and conduit holes, or the non-combustible inorganic compound is fixed or adhered in a layer along the inner wall of the cell hole, and further the wood veneer is added. The non-combustible treatment is performed by fixing or attaching the non-combustible inorganic compound to the front and back surfaces of the plate. This non-combustibility treatment can be performed, for example, by the following steps. That is, a wooden veneer is treated with an aqueous solution of a water-soluble inorganic salt (hereinafter referred to as “first liquid”).
) Is sufficiently immersed in the substrate for impregnation. At this time, it is effective to forcibly accelerate the impregnation by applying reduced pressure or increased pressure. Further, the wooden veneer is kept in a high water content state without drying, or after being dried, immersed in water or warm water to absorb water and made saturated, and then immersed in the first liquid for diffusion and impregnation. May be. As the first liquid, MgCl ₂ ,
MgBr ₂ , MgSO ₄ .H ₂ O, Mg (NO ₃ ) ₂ .6H ₂ O, AlCl ₃ , AlBr ₃ , Al _{2
(SO 4) 3, Al (} NO 3) 3 · 9H 2 O, CaCl 2, CaBr 2, Ca (NO 3) 2,
Examples include aqueous solutions of ZnCl ₂ , BaBr ₂ , BaCl ₂ .2H ₂ O, Ba (NO ₃ ) _{2 and the} like. The immersion and impregnation of the wood veneer into the first liquid is generally performed for about 30 minutes to 6 hours, depending on conditions such as the tree species, board thickness, and impregnation method. First wood veneer
By immersion and impregnation in the solution, ions of the inorganic salt of the solute enter into the cell pores of the wooden veneer by diffusion.

Next, a dewatering process is performed to remove an excess of the first liquid. The liquid removal treatment is performed by means of, for example, centrifugal liquid removal, showering, or washing with water, and by removing excess first liquid, the incombustible inorganic compound becomes excessive on the surface or the outer peripheral portion of the wooden veneer. To be generated,
Next, the diffusion and impregnation of the aqueous solution to be impregnated is improved. Further, it is possible to prevent the generation of the nonflammable inorganic compound in a free state that is not attached or fixed to the wooden veneer.

Next, a compound liquid that reacts with the first liquid to generate a water-insoluble incombustible inorganic compound (hereinafter, referred to as “second liquid”)
Is added to a wooden veneer using a blender, a spray, or the like, and the resulting mixture is immersed in the wooden veneer to impregnate the wooden veneer with the second liquid. As in the case of the first liquid, the impregnation of the wooden veneer with the second liquid can be promoted by decompression or pressure treatment. As the second liquid, Na ₂ CO ₃ , H ₂ SO ₄ , (N
_{H 4) 2 CO 3, Na} 2 SO 4, (NH 4) 2 SO 4, H 2 PO 4, Na 2 HPO 4, (NH 4) 2
Examples include HPO ₄ , H ₃ BO ₃ , NaBO ₂ , NH ₄ BO _{2 and the} like. By applying or dipping the second liquid, the second liquid is diffused and impregnated into the cell pores of the wooden veneer, and the first liquid and the second liquid react in the wooden veneer to produce a nonflammable inorganic compound. Is done. Examples of the generated nonflammable inorganic compounds include calcium compounds such as magnesium phosphate, calcium phosphate, barium phosphate, aluminum phosphate, magnesium borate, magnesium carbonate, calcium carbonate, zinc phosphate, barium carbonate, calcium nitrate, and barium nitrate. , Magnesium compounds,
Examples thereof include an aluminum compound, a barium compound, a lead compound, a zinc compound, and a silicate compound. For example, when barium chloride is used as the first liquid and ammonium hydrogen phosphate is used as the second liquid, barium cation and phosphoric acid anion react to form barium phosphate and barium hydrogen phosphate. Generated.

After the completion of the reaction, the excess second liquid is removed by dewatering by means of centrifugal dewatering or washing with water such as showering or soaking. The immersion treatment and the liquid removal treatment of the second liquid may be repeatedly performed as necessary. After the deliquoring treatment, it is dried to a water content of 25% or less, preferably 7 to 15%.
Since this non-flammable inorganic compound is water-insoluble, it is filled or adhered or adhered to the inside or cell wall of the wood veneer and dried or adhered to the front and back surfaces of the wood veneer after drying. You. As a result, the non-combustible inorganic compound is present in a form that blocks or fills the voids and cracks that appear on the surface of the wooden veneer.

The non-combustible inorganic compound is preferably mixed at a rate of 33% by weight or more based on the wood veneer, and below this level, sufficient fire protection performance cannot be obtained. In order to increase the reaction efficiency between the first liquid and the second liquid, the addition and mixing of the second liquid is preferably performed in a heated atmosphere, particularly at a temperature of 40 ° C. or higher, more preferably 50 ° C. or higher. In addition, the first liquid and the second liquid are put into a warm water state, and a wooden veneer is immersed in the water,
When the electrical or mechanical vibration is applied by ultrasonic waves or a vibrator when the liquid is immersed, the treatment liquid diffuses into the wood veneer and the reaction is performed well. The order of treatment with the first liquid and the second liquid does not matter, and the treatment with the second liquid may be performed first. The non-flammable inorganic compound that adheres or adheres to the front and back surfaces of the wooden veneer is removed by brushing or vacuuming as necessary.

Thus, a non-combustible wood veneer in which the non-combustible inorganic compound is filled or fixed in the cell pores and / or the inner wall surface is obtained.

The obtained non-combustible wood veneer is applied to the surface of a board made of plywood, particle board, wood fiber board, or the like, or the front and back surfaces thereof, or by applying a suitable adhesive to the entire front surface including the edge of the wood, through a suitable adhesive. A plate is obtained.

The present invention uses this decorative board as a board material for furniture. Furniture is constituted by using the decorative board as a top plate, a bottom plate, a side plate, a back plate, and the like of the furniture body.

<Function> Furniture is formed using a nonflammable wood veneer in which a nonflammable inorganic compound is filled or fixed in a cell hole or an inner wall surface of a wood veneer, so that fire prevention performance is improved.

<Example> The sink as kitchen furniture shown in FIG. 1 has a counter 3 provided with a sink 1, a cooking surface 2 and the like at the upper part, and a shelf 4 and a drawer (not shown) at the lower part of the counter 3. )
Is appropriately provided therein. The article storage section includes a pair of side plates 8, 8, a bottom plate 9, and a back plate (not shown).
The door 5 is openably and closably attached to an open front surface thereof to form a sink main body 6. A riser plate 7 is attached to the lowermost front end of the sink body 6.

The door 5, the riser plate 7, the side plates 8, 8, the bottom plate 9, and the back plate (not shown) in this sink are all obtained by cutting a decorative plate 10 having the configuration shown in FIG. 2 into a predetermined shape. The decorative board 10 includes a wooden veneer 11 adhered to a substrate 13 such as a plywood, a particle board, or a fiber board via an adhesive 12. The wood veneer 11 is a noncombustible wood veneer obtained by filling or fixing a noncombustible inorganic compound in the cell pores and / or the inner wall surface, and has extremely excellent fire protection performance.

<Effects of the Invention> The board for furniture according to the present invention has a decorative structure in which a non-combustible wood veneer in which cell walls and / or inner walls are filled or fixed with a non-combustible inorganic compound is adhered to the surface of a substrate or the like. Since it is made of a board, the fire prevention performance can be significantly improved without impairing the advantages of the woody material.

[Brief description of the drawings]

FIG. 1 is a perspective view showing kitchen furniture (sink), and FIG. 2 is a cross-sectional view showing the structure of a furniture plate according to one embodiment of the present invention. DESCRIPTION OF SYMBOLS 6 ... Sink, 10 ... Veneered board, 11 ... Non-combustible wood veneer,
12 ... Adhesive, 13 ... Substrate

Claims (1)

(57) [Claims] 1. A non-combustible wood veneer in which a non-combustible inorganic compound is filled or fixed in a cell pore and / or an inner wall surface is adhered to the front surface, the front and back surfaces, or the entire front surface including the lip of the wood. Furniture plate material comprising a decorative veneer.