JPH0596513A - Painted wood - Google Patents

Abstract

(57) [Summary] [Structure] Painted wood in which a coating film having fine ventilation holes is formed on the surface of wood impregnated with phytoncide so that phytoncide is released into the atmosphere. [Effect] The fragrance of phytoncide can be diffused evenly in a room such as a home or office, and a sufficient amount can be continuously diffused, and a decorative plate of furniture excellent in design, a drawer material, a floor material of a house, Wall and pillar materials can be provided easily and reliably.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to painted wood,
More specifically, the present invention relates to wood used as a decorative plate for furniture, a drawing material, a floor material for a house, a wall material, and the like, which is coated so that the aroma of phytoncide can be continuously emitted.

[0002]

BACKGROUND OF THE INVENTION Phytoncide is an α-pinene,
β-pinene, ε-limonene, dipentene, camphor,
Consists of one or more terpene compounds such as terpineol, terepinolen, hinokitiol, borneol, linalool, natural trees such as cypress and cedar,
Hinoki oil contained in branches, leaves, rhizomes, bark, fruits, etc.,
It is obtained by refining cedar oil, camphor oil, turpentine oil and the like, and is known to have aromaticity, deodorizing property, bactericidal property and insecticidal property.

Conventionally, toilet and indoor deodorizing and aromatic agents containing such phytoncide have been sold.
Toilet and indoor deodorants / fragrances have the disadvantages of deodorizing effect and aroma not lasting long.

Therefore, recently, there has been proposed an adhesive composition containing a granular inorganic compound having phytoncide adsorbed therein, and a plywood consisting of a plurality of wooden boards joined with such an adhesive composition. Attempts have been made to continuously volatilize phytoncide from the plywood into the room (Japanese Patent Laid-Open No. 1-234481).

However, depending on the kind of the adhesive contained in the adhesive composition, the adhesive and phytoncide may chemically react with each other, and phytoncide may not be volatilized from the plywood.

Further, when the amount of phytoncide and the granular inorganic compound contained in the adhesive composition is increased, the adhesive strength between the wooden boards constituting the plywood is lowered, and the wooden boards are easily peeled off. Occurs. On the contrary, if the blending amount of phytoncide and the granular inorganic compound contained in the adhesive composition is reduced, there is a problem that a proper amount of phytoncide is not volatilized from the plywood and sufficient aromaticity and deodorizing property are not exhibited.

In most of the wood boards used for plywood, the grain of wood appears on the surface and the mouth of the wood appears on the end face. In a plywood obtained by joining such wood boards with an adhesive composition containing phytoncide, the volatile components of the phytoncide move along the tube wall of the vascular bundle contained in the wood board, and the phytoncide only from the end surface of the plywood. Tend to volatilize and the phytoncide does not volatilize from the surface of the plywood. For this reason, when such plywood is used as a flooring material, wall material, etc. of a house, a sufficient amount of phytoncide cannot be released evenly from the surface of the plywood, and for deodorization and aroma in the room There was a problem that a sufficient effect could not be obtained.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to disperse the aroma of phytoncide evenly in a room such as a home or an office in a sufficient amount, and to produce furniture. It is an object of the present invention to easily and surely provide painted wood suitable as a decorative plate, a drawing material, a floor material for a house, a wall material, a pillar material, and the like.

[0009]

SUMMARY OF THE INVENTION The coated wood according to the present invention comprises a phytoncide-impregnated wood surface with a coating having fine ventilation holes so that the phytoncide can be released into the atmosphere. Is characterized by.

[0010]

DETAILED DESCRIPTION OF THE INVENTION The coated wood according to the present invention will be specifically described below. The coated wood 1 according to the present invention has a coating film 4 formed on the surface of the wood 3 impregnated with phytoncide 2 as shown in FIG.
Has fine ventilation holes 5, and the phytoncide 2 reaches the surface of the coating film 4 from the surface of the wood 3 through the fine ventilation holes 5 and is released into the atmosphere.

The wood 3 referred to in the present invention includes natural wood consisting only of wood and processed wood such as plywood, chipboard and fiber board. Moreover, the shape of the wood 3 is not particularly limited, and wood having various shapes such as a plate shape and a column shape is used as the wood 3. Furthermore, the cut of the wood 3 is not particularly limited, and the cut of the wood 3 may be a cut in which the grain is exposed on the surface and the cut is exposed on the end face, or other cuts.

In the present invention, the wood 3 is impregnated with the phytoncide 2. As the phytoncide 2, one or more kinds of terpene compounds such as α-pinene, β-pinene, ε-limonene, dipentene, camphor, terpineol, terpineolene, hinokitiol, borneol and linalool as described above are used. Be done.
Also, such phytoncide 2 is a steam distillation method and squeezing of cypress oil, cedar oil, camphor oil, turpentine oil, etc. contained in natural trees such as cypress and cedar, branches and leaves, rhizomes, bark and fruits. It can be obtained by a known method such as extraction by a method or the like and purification.

As a method for impregnating the wood 3 with the phytoncide 2 as described above, a known method can be adopted, and the method is not particularly limited, but the phytoncide 2 can be impregnated into the wood 3 by the following method, for example.

1) After storing the wood 3 in a tank connected to, for example, a vacuum pump, the tank is closed, and then the tank is evacuated by a vacuum pump to make the vacuum state water containing phytoncide or Method of injecting alcohol solution to impregnate wood with phytoncide, 2) Immersing wood 3 in water or alcohol solution containing phytoncide, then pulling wood 3 out of the solution, then water or alcohol as solvent from wood 3 And 3) a method of spraying a water or alcohol solution containing phytoncide on the surface of the wood 3, and then removing the solvent water or alcohol from the wood 3 by evaporation.

In particular, the method of 1) particularly comprises impregnating wood chips for chip boards and wood fibers for fiber boards with phytoncide, and producing phytoncide-impregnated chip boards and fiber boards from phytoncide-impregnated wood chips and wood fibers, respectively. Suitable to do.

When the wood 3 is impregnated with the phytoncide 2 by the above-mentioned method, it is preferable to use a water or alcohol solution containing a high concentration of phytoncide, and a water or alcohol solution containing a high concentration of phytoncide is used. Thus, the wood 3 can be impregnated with a high concentration of phytoncide.

Further, the wood 3 may be impregnated with the phytoncide 2 such as an antifungal agent for preventing decomposition and alteration of the phytoncide. Further, in the present invention, the coating film 4 is formed on the surface of the wood 3 impregnated with such phytoncide 2.

The coating film 4 is usually made of one kind of organic resin such as nitrocellulose resin, acrylic resin, amino resin, alkyd resin, polyester resin, polyester resin or a mixture of two or more kinds thereof, and further organic resin. Depending on the type, it contains a catalyst, a curing accelerator, etc. used when polymerizing the monomers and oligomers which are the raw materials of the organic resin. Further, the coating film 4 contains one kind or two kinds or more of an antioxidant, an ultraviolet absorber and a coloring material such as a coloring pigment and a coloring dye, if necessary.

Further, the coating film 4 is provided with fine ventilation holes 5 extending from the surface of the wood 3 to the surface of the coating film 4. The amount of the phytoncide 2 volatilized from the surface of the coating film 4 is the amount of the phytoncide 2 impregnated in the wood 3, the pore diameter of the ventilation holes 5 and the porosity (opening area of pores per unit surface area S of the coating film 4). When the sum of s is s, s / S) tends to increase, and conversely, the film thickness of the coating film 4 tends to increase, and the ventilation holes 5 tend to decrease as the length increases. The porosity of the ventilation holes 5 is proportional to the number of the ventilation holes 5 existing per unit surface area of the coating film 4 when the respective ventilation holes 5 formed in the coating film 4 have substantially the same diameter. To do. Therefore, the intensity of the fragrance of phytoncide emitted from the coated wood 1 according to the present invention and the duration of this fragrance depend on the amount of the phytoncide 2 impregnated in the wood 3, the pore diameter φ of the ventilation holes 5 and the porosity s / It can be arbitrarily controlled by changing S and the like.

In order to volatilize the phytoncide 2 evenly from the surface of the coating film 4, the openings of the ventilation holes 5 should be formed so that the porosity of the ventilation holes 5 becomes equal at any place on the surface of the coating film 4. It is desirable that they are evenly distributed on the surface of.
Further, it is preferable that the air holes 5 present on the surface of the coating film 4 have substantially the same diameter. When the diameters of the respective vent holes 5 existing on the surface of the coating film 4 are substantially the same, for example, the pore diameter φ and the number n depending on the film thickness d of the coating film 4 are determined. The film thickness d, the hole diameter φ and the number n of the ventilation holes 5 can be easily determined in association with each other.

In order to control an appropriate amount of phytoncide 2 so as to volatilize from the surface of the coating film 4, the film thickness d of the coating film 4 is preferably in the range of 0.01 mm to 1 mm. Further, the pore diameter φ of the ventilation holes 5 is preferably in the range of 100Å to 2 mm, and the porosity s / S of the ventilation holes 5 is s / S.
Is preferably in the range of 0.001 to 0.1.

The coating film 4 having the fine ventilation holes 5 as described above is formed on the surface of the wood 3 impregnated with the phytoncide 2 by the following method, for example. a) a method of coating the surface of the wood 3 impregnated with the phytoncide 2 with a coating material obtained by dissolving a thermoplastic resin such as a nitrocellulose resin or an acrylic resin in a solvent; b) impregnating the phytoncide 2 A method in which the surface of the wood 3 is coated and the coating film 4 formed on the surface of the wood 3 is subjected to needle-punching processing using a metal brush or the like to make fine holes, c) The phytoncide 2 is impregnated in advance. Make fine holes in the surface of the wood 3 with a metal brush,
A method of coating the surface of the wood 3 in which the fine pores are formed in this way, d) Thick coating of the surface of the wood 3 impregnated with the phytoncide 2 and then thick coating of the surface of the wood 3. Abruptly heating the applied coating to form the coating film 4) e) coating the surface of the wood 3 impregnated with the phytoncide 2 using a highly viscous coating, and f) a foaming agent A method of coating the surface of the wood 3 impregnated with the phytoncide 2 with a coating material containing, and forming the coating film 4 on the surface of the wood 3 by heating the coating film 4 to a temperature above the foaming temperature.

When a coating film having fine ventilation holes is formed on the surface of wood by the method of f), a physical foaming agent such as an aliphatic hydrocarbon which evaporates by heating to foam the coating film as a foaming agent. A chemical foaming agent such as a carbonate, an azo compound or an organic peroxide which decomposes by heating to foam a coating film is used.

Further, the amount of the foaming agent contained in the paint is smaller than the amount of the foaming agent contained in the foamable composition for producing a plastic foam, and the total amount of all the components forming the coating film 4 is It is preferably in the range of 0.5 to 0.001 parts by weight with respect to 100 parts by weight.

Among the methods a) to f) described above,
The method a) is particularly preferable in that the coating film 4 having fine ventilation holes 5 can be formed on the surface of the wood 3 impregnated with the phytoncide 2 without causing defects in the coating film 4.

The method b) has an advantage that the fine ventilation holes 5 extending from the surface of the wood 3 to the surface of the coating film 4 can be easily and surely opened. The methods c) to f) are not limited to paints obtained by dissolving a thermoplastic resin in a solvent, and have an advantage that reaction-curable paints exemplified below can also be used.

I) an acid-curable aminoalkyd resin coating containing an amino resin, an alkyd resin, and an acid such as hydrochloric acid or p-toluenesulfonic acid as a curing agent, ii) a polybasic acid such as maleic anhydride or fumaric acid, and propylene glycol Unsaturated polyester resin coating containing a polyester formed of a condensation product with a polyhydric alcohol dissolved in a polymerizable monomer such as styrene, and further containing a curing catalyst and, if necessary, a curing accelerator such as cobalt naphthenate and a wax. Iii) Wax-free unsaturated polyester resin coating material containing polyisocyanate and urethanized unsaturated polyester resin coating material, and iv) Polyol (main component) and isocyanate (curing agent)
A polyol-curable polyurethane resin coating composition which comprises a two-component solution of (1) and which is reacted to obtain a cured coating film.

When the coated wood 1 according to the present invention is formed, the base material of the wood 3 can be adjusted, the coating, the coating film 4 can be polished and the like according to known methods.
Since the design of the wood 1 can be improved by the coating film 4 of the wood 1 thus formed, the floor material, wall material,
It can be suitably used not only as a pillar material, but also as a surface plate for furniture that requires designability.

[0029]

As is apparent from the above description, according to the present invention, the fragrance of phytoncide can be dispersed evenly in a room such as a home or an office, and a sufficient amount can be continuously diffused, and the design can be improved. The effect is that it is possible to easily and reliably provide a decorative plate for furniture, a drawer material, a floor material for a house, a wall material, a pillar material, and the like, which have excellent properties.

[Brief description of drawings]

FIG. 1 is a view for explaining coated wood according to the present invention.

[Explanation of symbols]

1 ... Painted wood, 2 ... Phytoncide, 3 ... Wood, 4 ... Coating film, 5 ... Vent hole.

Claims (1)

[Claims] 1. A coated wood comprising a phytoncide-impregnated wood surface on which a coating film having fine ventilation holes is formed so that the phytoncide is released into the atmosphere.