JPH0412808A - Furniture - Google Patents

Abstract

PURPOSE:To improve fire preventive performance by constituting a furniture in use of a wood chipped board as a base board in which nonflammable wood chipped pieces filled and adhered with a nonflammable inorganic compound are adhesion-formed integrally. CONSTITUTION:Nonflammable treatment is carried out by putting wood chipped pieces for sufficient soak-impregnation into the water solution of water soluble inorganic salt. First, it is subjected to soak-impregnation into the water solution of first liquid, for example, such as MgCl2 or the like. Subsequently, it is soaked into the water solution of second liquid such as Na2CO3 or the like that produces a water insoluble nonflammable inorganic compound in reaction with the first liquid. The nonflammable inorganic compound is blended thereinto at a rate of 33wt.% or more with respect to the wood chipped pieces. This nonflammable chipped pieces are placed into a blending device and applied and adhered with an adhesive substance, and thereafter, thermal pressing formation is effected therefor. The thus obtained nonflammable wood chipped board is employed as a base board and then a decorative sheet-shaped substance is adhered over the entire surface thereof, thus obtaining a decorative laminated board. The decorative laminated board is used for the top board, bottom board, side boards, rear board, and the like of a furniture main body.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to furniture with excellent fireproof performance.

<Prior Art> Furniture such as storage furniture and kitchen furniture used in general households is usually made of wood at least in its main body in order to satisfy requirements such as workability, design, feel, weight, and price.

By the way, in the construction of houses, from the perspective of fire prevention, restrictions are placed on the structure and materials used under the Building Standards Act.
Interior decoration restrictions are imposed on indoor rooms, and wall materials are required to use non-smoking materials or semi-smoke-free materials.

However, if a fire actually breaks out indoors, the furniture installed in the room and the items stored inside the furniture will catch fire, making the fire more intense. The problem was that it could not be achieved. Ignition of furniture, etc. is the biggest cause of fire spread.

<Problem to be Solved by the Invention> Accordingly, an object of the present invention is to provide furniture whose main body is basically made of wood but which has excellent fireproof performance.

<Means for Solving the Problems> The above problem is achieved by molding and integrating noncombustible wood chips, in which the insides of the cell pores and/or the inner wall surface are filled with or fixed with a noncombustible inorganic compound, through an adhesive substance. At least a part of the constituent member is a decorative board made by using a wood chip board as a substrate and pasting a decorative sheet-like material on the front surface, front and back surfaces of the substrate, or the entire surface including the wood edge. Solved by furniture.

Furniture is generally made up of a top plate, bottom plate, side plate, and back plate, with parts such as doors, doors, drawers, shelves, etc. installed as appropriate, and metal fittings such as hinges, handles, rails, door wheels, etc. and formed.

At least some of the constituent members of the furniture of the present invention, particularly the decorative board used as the board material of the furniture body, is a noncombustible wood shavings in which the cell pores and/or the inner wall surface are filled with or fixed with a noncombustible inorganic compound. The substrate is a wood chip board formed by integrally molding them through an adhesive substance, and a sheet-like material is adhered to the front surface or the front and back surfaces of the substrate, or the entire front surface including the wood edge.

The wood chips used in the present invention are obtained by cutting softwood materials such as pine, cedar, and cypress, or hardwood materials such as lauan, Kabono mullet, poplar, and willow using a cutting device such as a chipper or a flaker. It can be obtained in the form of chips, flakes, strands, etc. This wood chip has cell pores consisting of wood cells, conduit pores, or plate grooves, and the cell wall at the outer periphery of the wood chip has been torn and has numerous cracks.

The obtained wood chips are dried and their moisture content is adjusted to about 7 to 15%.

A nonflammable inorganic compound is filled into the voids such as cell pores and conduit pores of the dried wood chips, or the nonflammable inorganic compound is fixed or adhered in a layer along the inner wall of the cell pores, and then the wood chips are A noncombustible wood chip is obtained by fixing or adhering the noncombustible inorganic compound to the outer periphery of the chip. This nonflammability treatment can be performed, for example, by the following steps. That is, the wood shavings are soaked in an aqueous solution of a water-soluble inorganic salt (hereinafter referred to as the "first solution").
Thoroughly immerse it in the liquid to allow it to be impregnated. At this time, it is effective to forcibly accelerate the impregnation treatment by applying reduced pressure or increased pressure. In addition, the wood chips can be made into a high moisture content state without drying them.
Alternatively, after drying, the material may be immersed in water or hot water to absorb water, until the material is saturated with water, and then immersed in the first liquid for diffusion impregnation. As the first liquid, MgCQ2. Mg
Br2゜Mg5O,・H20, Mg(N O3)2・6
H20,A[(1,.

A4Br5. A(12(SO4)3.A(2(NO3)
x・9H20°CaCQ2. CaBr2. Ca(NO3
)z, ZnCQ2゜BaBr2. Ba(12・2H20
, Ba(NOl)2, etc. are exemplified. By immersing the wood chips in the first liquid, ions of the inorganic salt of the solute diffuse into the cell pores in the wood chips.

Next, a dewatering process is performed to remove the excess first liquid. The liquid removal process is carried out, for example, by centrifugal liquid removal or washing of shirts and dough pickled in water, and by removing the excess first liquid, non-combustible inorganic compounds are excessively produced on the outer periphery of the wood chips. This improves the diffusion and impregnation of the aqueous solution that will be impregnated next. It also prevents nonflammable inorganic compounds from being produced in a free state that is not attached or fixed to the wood chips.

Next, a compound liquid that reacts with the first liquid to produce a water-insoluble, nonflammable inorganic compound (hereinafter referred to as the "second liquid") is added to and mixed with the wood chips using a blender, spray, etc. By dipping, the wood chips are impregnated with the second liquid. As in the case of the first liquid, impregnation of the second liquid into the wood chips can be promoted by treatment under reduced pressure or pressure.

As the second liquid, Na2Co, H2SO, etc.

(NH=)2C○3. N a 2 S O4, (N
H4) 2 S○,.

H2PO,, Na2HPO4, (NH4)2HPclt
Examples include H3B○l NaB O2, N H4B 02, and the like.

By applying or dipping the second liquid, the second liquid is diffused and impregnated into the cell pores of the wood chips, and the first liquid and the second liquid are mixed in the wood chips.
A nonflammable inorganic compound is produced by the reaction with the liquid. The nonflammable inorganic compounds produced are magnesium phosphate,
Calcium phosphate, barium phosphate, aluminum phosphate, magnesium borate, magnesium carbonate, calcium carbonate.

Examples include calcium compounds, magnesium compounds, aluminum compounds, barium compounds, lead compounds, zinc compounds, silicate compounds, etc., such as zinc phosphate, barium carbonate, nitric acid, and barium nitrate. For example, if barium chloride is used as the first liquid and ammonium hydrogen phosphate is used as the second liquid, the barium cations and phosphoric acid anions will react, producing barium phosphate and barium hydrogen phosphate. be done.

After the reaction is completed, the excess second liquid is removed by centrifugal deliquidation, washing with water using a shower, soaking, or the like. The second liquid immersion process and the liquid removal process may be repeated multiple times as necessary. After the liquid removal treatment, it is dried to a moisture content of 25% or less, preferably 7 to 15%. Since this nonflammable inorganic compound is water-insoluble, after drying, it fills, adheres, or adheres to the inside of the cell pores of the wood chips or the inner wall surface of the cell pores, and also adheres or adheres to the outer periphery of the wood chips. Ru. As a result, the nonflammable inorganic compound is present in a form that blocks or fills the pores and cracks in the wood chips.

It is preferable that the nonflammable inorganic compound is mixed in at a ratio of 33% by weight or more to the wood chips, and if it is less than this, sufficient fireproof performance cannot be obtained. In addition, in order to increase the reaction efficiency between the first liquid and the second liquid, the addition and mixing of the second liquid is carried out under a heated atmosphere.
In particular, it is preferred to carry out at a temperature of 40°C or higher, more preferably 50°C or higher. Alternatively, the first liquid and the second liquid may be heated and the wood chips are immersed therein, or the first liquid and the second liquid may be immersed in electrical or mechanical vibration using ultrasonic waves or a vibrator. , the diffusion and reaction of the treatment liquid into the wood chips can be carried out well.

Note that the order of processing with the first liquid and the second liquid does not matter, and it goes without saying that the processing with the second liquid may be performed first.

In this way, a noncombustible wood shavings is obtained in which the noncombustible inorganic compound is fixed in the cell pores or on the inner wall surface, and the noncombustible inorganic compound is also fixed or adhered to the outer periphery of the cell pore, thereby making it noncombustible.

The non-combustible wood shavings are then placed in a mixing device to add and adhere the adhesive substance. In the mixing device, arbitrary additives such as a water repellent and a smoke reducing agent can be mixed at the same time as necessary. Adhesive substances include urea resin, melamine resin, isonoanate, urethane resin, Evokin resin,
Synthetic resin adhesives such as vinyl acetate resin, phenol resin, or modified resins thereof are preferably used. The adhesive substance can be mixed with a nonflammable inorganic compound of the same type or different from the nonflammable inorganic compound filled or fixed in the cell pores of the wood chips, thereby further enhancing the fire retardant performance of the furniture. can be improved.

Non-combustible wood chips mixed with an adhesive substance are air blown,
The wood shavings are placed in an ohming device to form a continuous wood shavings cloak of a certain thickness on the conveying device, and the resulting wood shavings mat is cut to a specified length, then inserted into a hot press and hot-press molded.
A non-combustible wood particle board is obtained. Alternatively, the wood chip mat may be hot-pressed in a continuous press and then cut to a fixed length.

Using the thus obtained noncombustible wood chip board as a substrate, the front surface, front and back surfaces, or the entire front surface including the edge of the wood was coated using the same adhesive coating device as described above. Apply adhesive substance. Similarly, a nonflammable inorganic compound can be mixed into this adhesive material.

Apply the adhesive to the adhesive application surface using a pasting device such as a press device, vacuum press device, or laminating device, or by using a manual.
A decorative sheet is attached to obtain a decorative board. As the decorative sheet-like material, decorative paper, veneer, decorative vinyl chloride sheet, resin-impregnated decorative paper, etc. are suitably used. Makeup notebooks are
It is preferable to use a material with fire protection performance equal to or higher than BP.

The furniture of the present invention is constructed by using this decorative board as the top plate, bottom plate, side plate, back plate, etc. of the furniture body.

<Function> Furniture is constructed using a wood chipboard as a substrate, which is made by adhesively molding noncombustible wood chips with a noncombustible inorganic compound filled or fixed in the cell pores and their inner walls, so it is fireproof. Performance is improved.

<Example> The sink serving as kitchen furniture shown in FIG. 1 has a counter 3 provided with a counter 1 and a cooking surface 2 etc.
At the bottom of the counter 3, there is provided an article storage section in which shelves 4 and drawers (not shown) are properly installed. The article storage section is configured in a substantially U-shape with a pair of side plates 8, 8, a bottom plate 9, and a back plate (not shown), and a door 5 is attached to the open front side of the unit so that it can be opened and closed, and a sink main body 6 is attached. is doing. A riser board 7 is attached to the lowermost front end of the sink body 6.

The door 5, riser plate 7, side plate 8°8, bottom plate 9, and back plate (not shown) in this sink are all obtained by cutting the decorative board 10 having the configuration shown in FIG. 2 into a predetermined shape. This decorative board 10 is made up of a decorative sheet-like material 11 adhered onto a substrate 13 via an adhesive 12. Board 13
is a noncombustible wood particle board made by integrally molding noncombustible wood chips with a noncombustible inorganic compound filled or fixed in the cell pores and/or inner wall surface through an adhesive, and is extremely excellent. It has fireproof performance.

<Effects of the Invention> The furniture according to the present invention uses a wood chip board obtained by adhesively molding and integrating noncombustible wood chips with a noncombustible inorganic compound filled or fixed into the cell pores and/or the inner wall surface as a substrate. Since the furniture is made of decorative laminate, the fire protection performance of the furniture can be significantly improved without sacrificing the advantages of wood materials.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing kitchen furniture (sink) according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the structure of a decorative board used as the plate material. Explanation of symbols

Claims (2)

[Claims] (1) The substrate is a wood chip board made by integrally molding noncombustible wood chips with a noncombustible inorganic compound filled or fixed in the cell pores and/or the inner wall surface through an adhesive substance. 1. Furniture characterized in that at least a part of its constituent members is a decorative board made by pasting a decorative sheet-like material on the front surface, the front and back surfaces, or the entire front surface including the edge of the wood. (2) The furniture according to claim 1, wherein the decorative sheet-like material has fire prevention performance that is higher than flame retardancy.