JP2015093241A - Method for manufacturing woody decorative plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a woody decorative plate manufacturing method capable of improving productivity and surface design although it can suppress the color-deepening in a recess of a surface.SOLUTION: In a method for manufacturing a woody decorative plate 1, a base coating 13 corresponding to the paint, in which a coloring component is extracted from a coloring coating 14 to be subsequently applied, is applied to a surface 11 of a woody plate material 1A which is made of a natural wood 10 and formed with a recess 12 in at least a surface layer part, and the coloring paint is then applied before the base coating is dried and cured.

Description

  The present invention relates to a method for producing a wooden decorative board used as a flooring material, a ceiling material, a wall material or the like.

Conventionally, various surface treatments have been applied to the surface of a wooden decorative board used as a flooring material, a ceiling material, a wall material, or the like by coloring or the like. There is a problem in that the surface of such a wood decorative board has a recess due to a conduit or the like, and more coloring paint enters and penetrates into the recess than other parts of the surface, and the part becomes darker. It was.
For example, in the following Patent Document 1, an ultraviolet curable coating material added with a white colorant is pushed into a conduit portion of a wooden veneer, and after the paint is cured, the paint containing the present colorant is applied. A method for painting a wooden building material is disclosed.

JP 2004-167438 A

  However, in the coating method described in Patent Document 1, it is necessary to cure the paint by irradiating ultraviolet rays before coloring, and further improvement is desired. Moreover, since the ultraviolet curable coating material to which the white colorant is added is applied to the surface other than the conduit portion, it may be difficult to later color or affect the coloration.

  The present invention has been made in view of the above circumstances, and provides a method for producing a wooden decorative board capable of improving productivity and surface design while being able to suppress darkening in concave portions on the surface. It is an object.

  In order to achieve the above-mentioned object, the method for producing a wooden decorative board according to the present invention includes coloring from a coating material for coloring applied to the surface of a wooden board material having at least a surface layer made of natural wood and having a concave portion on the surface. A base paint corresponding to the paint excluding the components is applied, and then the coloring paint is applied before the base paint is dried and cured.

  In the present invention, the base paint and the coloring paint may be water-based paint or solvent-based paint.

  The method for producing a wooden decorative board according to the present invention has the above-described configuration, so that it is possible to improve the productivity and the surface design while being able to suppress the darkening in the concave portions on the surface.

(A)-(e) each shows typically an example of the process of the manufacturing method of the wooden decorative board which concerns on one Embodiment of this invention, and the partial fracture | rupture corresponding to the XX arrow in FIG. It is a schematic longitudinal cross-sectional view. It is a schematic perspective view which shows typically an example of the wooden decorative board manufactured using the manufacturing method.

Embodiments of the present invention will be described below with reference to the drawings.
In the method for manufacturing a wooden decorative board according to this embodiment, the surface 11 of a wooden board 1A (see FIG. 1 (a)) having at least a surface layer portion made of natural wood 10 is subjected to a coating process to be described later. (See FIG. 1E).
In this embodiment, as shown in FIG. 2, a wooden decorative board manufactured using the method for manufacturing a wooden decorative board according to this embodiment is used as a flooring 1.
The flooring 1 has a substantially rectangular shape in plan view (as viewed in the thickness direction), and is, for example, a long plate-like body of about 1 (303 mm) × 6 (1818 mm). .

Moreover, the male side part 3 and 3 are provided in the two side edge part of the four side edge parts of this flooring 1, and the female real part 4 and 4 are provided in the other two side edge part. ing. Further, a chamfered portion 5 is provided at the front side edge of the four circumferences of the flooring 1, and a plurality of groove portions 6 are provided on the surface. The real parts 3 and 4, the chamfered part 5, and the groove part 6 are appropriately formed by cutting or the like.
Further, in the present embodiment, the flooring 1 (wood board 1A) is configured by laminating a single plate 10 as natural wood on the surface of the base 2.

  The base material 2 is formed from a wood-based material such as a wood laminate board such as plywood or LVL (single-plate laminate), a wood board such as particle board, or a wood fiber board such as insulation board or MDF (medium density fiber board). It is good also as what was done. In addition, the base material 2 is formed from a wood powder / plastic composite (WPC) in which a synthetic resin material contains wood powder, an inorganic filler, a compatibilizer, a colorant, and the like in a predetermined content ratio. Also good. Moreover, the base material 2 is good also as what was made into the multilayer structure which laminated | stacked the board | plate material which consists of these various materials.

  The veneer 10 may be formed by thinly slicing natural name wood. This single plate 10 may be a so-called protruding plate having a thickness dimension of about 100 μm to 0.25 mm, or may be a thick single plate thicker than this. The thickness dimension of the veneer 10 may be set to, for example, about 0.2 mm to 2.0 mm from the viewpoint of cost and the like and the viewpoint of giving a wood texture. Further, as the natural name wood constituting the veneer 10, one having a surface 11 provided with a conduit portion 12 as a concave portion may be adopted. Examples of tree species applied to the veneer 10 include ring-hole or semi-ring-hole-like tree species in which the conduit portion 12 tends to be relatively large. Examples of ring-hole-shaped tree species include oak, zelkova, sendan, sen, teak, white ash, and elm. Examples of semi-circular material-like tree species include walnut, spruce, and oak.

The tree species applied to the veneer 10 is not limited to a ring-hole or semi-ring-hole-like tree species, and may be a hole-hole-like tree species such as beech or birch.
Moreover, as the recessed part 12 provided in the surface 11 of the single board 10 (wood board | plate material 1A), it is good also as the recessed part 12 formed artificially without being restricted to the conduit part 12 peculiar to the above tree species. For example, the groove 6 as described above may be grasped as the recess 12. Alternatively, a soft spring material portion (early material portion) on the surface 11 may be scraped (scraped off) by a so-called floating process such as blasting or brushing, and the concave portion 12 may be provided. In this case, the veneer 10 may be made of a tree species having a relatively large hardness difference (density difference) between the autumn lumber part (late lumber part) and the spring lumber part.

Next, an example of the manufacturing method of the flooring 1 as a wooden decorative board is demonstrated.
First, the base material 2 is formed so as to have a predetermined size, and a single plate 10 is laminated on the surface of the base material 2 with an adhesive or the like, and a laminating step for forming a laminated wood board 1A is executed ( FIG. 1 (a)).
Moreover, the real parts 3 and 4, the chamfer part 5, and the groove part 6 are formed by cutting etc. as needed. In addition, you may make it not provide either of these real parts 3 and 4, the chamfering part 5, and the groove part 6. FIG.

  And as shown in FIGS. 1 (a) and 1 (b), on the surface 11 of the wood board 1A in which at least the surface layer portion is a single plate 10 as a natural wood and the surface 11 is provided with a conduit portion 12 as a recess, A base coating process for applying the base paint 13 is executed. This base paint 13 corresponds to a paint obtained by removing coloring components such as pigments and dyes from a coloring paint 14 (see FIG. 1C) to be applied later, and is the same type as the coloring paint 14. It is a good (affinity) paint. Examples of such a base paint 13 include those used as a diluent for the coloring paint 14, and additives for improving the adhesion of coloring components contained in the subsequent coloring paint 14 (for complementary colors). It is good also as what added the additive. In the present embodiment, the base paint 13 and the coloring paint 14 are water-based paint (water-based paint) or solvent-based paint (oil-based paint). For example, the coloring paint 14 may be an aqueous or oily synthetic resin paint obtained by diluting an aqueous or oily synthetic resin colorant containing a pigment or dye as a coloring component with a diluent. The base paint 13 may be a diluent used for the coloring paint 14 or a paint obtained by adding the complementary color additive to the diluent. For example, as an example, the coloring paint 14 is a paint obtained by diluting an aqueous pigment-based colorant flora manufactured by NATCO Corporation with a diluent (flora base), and the base paint 13 is a diluent (flora base) or the same. Further, a paint obtained by adding the above-mentioned complementary color additive may be used.

  In the substrate coating process, the base coating 13 may be applied to the surface 11 of the wood board 1A by an appropriate coating method, for example, by a roll coater method. In this case, it may be applied using a rubber roll so that the recess 12 provided on the surface 11 of the wood board 1A is appropriately filled with the base coating 13, or a double roll, a sponge roll and a rubber roll. You may make it apply | coat using. Such a coating mode and the coating amount of the base coating 13 are appropriately determined according to the size and depth of the recess 12 provided on the surface 11 of the wood board 1A, the desired filling ratio of the base coating 13 to the recess 12, and the like. You may make it set. FIG. 1B shows an example in which the concave portion 12 is filled with about 80% to 90% of the base paint 13. If the filling ratio of the base coating 13 into the recess 12 is too small, the filling ratio of the coloring paint 14 to be applied later into the recess 12 increases, and the recess 12 becomes darker than other parts. In the subsequent drying step, the surroundings tend to be ejected from the recesses 12 and become darker. On the other hand, if the filling ratio of the base coating 13 into the recess 12 is too large, when the recess 12 is a conduit portion, the natural wood grain pattern tends to be reduced. From such a viewpoint, the filling ratio of the base paint 13 into the recess 12 may be about 40% to 90%, and preferably about 60% to 90%.

Next, as shown in FIGS. 1B and 1C, before the base coating 13 is dried and cured on the surface of the wood board 1B in which the base coating 13 is applied to the surface 11 including the recess 12, the coloring coating is applied. The coloring process of applying 14 is executed.
In this coloring step, since the base coating 13 is applied to the surface 11 including the recess 12 and the base coating 13 is not dried and cured, the coloring coating 14 is extremely removed as shown in FIG. It is applied so as to cover the base paint 13 without entering the recess 12.
Further, in this coloring step, a slightly colored coating may be performed so as not to disturb the ground color of the wood board 1A in which at least the surface layer portion is a single plate 10 as natural wood.
Further, in this coloring step, the coloring paint 14 may be applied by a roll coater method, as in the base coating step. For example, you may make it apply | coat using a sponge roll, a reverse roll, and a rubber roll. You may make it set suitably the application | coating aspect of this coloring process according to the presence or absence of the chamfered part 5 or the groove part 6, the filling ratio of the base coating 13 to the recessed part 12, etc.

Moreover, as shown in FIG.1 (d), you may make it perform the drying process which dries and hardens the base coating material 13 and the coating material 14 for coloring which were apply | coated to the surface of the wooden board | plate material 1C suitably. In the present embodiment, since the base paint 13 and the coloring paint 14 are water-based paints or solvent-based paints, warm air drying is performed by the dryer 7 in order to effectively evaporate and volatilize water and solvents contained therein. You may do it. Thereby, the water and the solvent contained in the base paint 13 and the coloring paint 14 evaporate or volatilize, a coating layer is formed on the surface 11 including the recess 12, and the filling ratio to the recess 12 is reduced. Become.
In addition, it is not restricted to warm air drying, You may make it dry using an appropriate heater, and also it is good also as natural drying. Further, when the base paint 13 and the coloring paint 14 are solvent-free paints, for example, ultraviolet curable paints, they may be cured by an ultraviolet irradiation lamp or the like.

Then, a transparent or translucent topcoat layer (protective layer) 15 is formed on the surface of the wood board 1D colored and dried and cured as described above, as shown in FIG. You may make it manufacture the flooring (wooden decorative board) 1 by performing the finishing coating process to perform.
In this finish coating step, undercoating, intermediate coating, and topcoating may be performed.
Further, in the finish coating step, a transparent or translucent paint may be applied by the roll coater method as described above. Moreover, you may make it apply | coat the coating material containing an antifoamer, an antifriction material, etc. suitably.
Further, after applying a transparent or translucent coating material, the coating material may be appropriately dried and cured as described above.
In FIG. 1E, the base coating 13 and the coloring coating 14 filled in the recesses 12 are dried and cured on the surface of the flooring (wooden decorative board) 1 after the top coat layer 15 is formed. Although an example in which a concave portion is included and the surface is generally smooth is shown, an uneven shape may be used.

The manufacturing method of the wood decorative board according to the present embodiment can improve the productivity and the surface design while being able to suppress the darkening in the concave portion 12 on the surface by being configured as described above. it can.
That is, a base paint 13 corresponding to a paint obtained by removing a coloring component from a later-applied coloring paint 14 is applied to the surface 11 of the wood board 1A, and then before the base paint 13 is dried and cured, the coloring paint is applied. The paint 14 is applied. Therefore, before the coloring paint 14 is applied, the surface of the wood board 1B is covered with the base paint 13, and the concave coating 12 is also appropriately filled with the base paint 13, and the coloring paint applied later. 14, uneven coloring due to the suction of 14 and excessive entry into the recess 12 can be suppressed. Further, since the coloring paint 14 is applied before the base paint 13 is dried and cured, it is not necessary to dry and cure, and the productivity can be improved. In addition, since the base paint 13 corresponds to a paint obtained by removing the coloring component from the coloring paint 14, the familiarity with the coloring paint 14 is good, and it is possible to suppress the adverse effect on the coloring. And surface design can be improved.

  In the present embodiment, the base paint 13 and the coloring paint 14 are water-based paints or solvent-based paints. Therefore, for example, the handleability is better and the productivity can be further improved as compared with an ultraviolet curable paint or the like. Further, since the coloring paint 14 is applied before the base paint 13 is dried and cured, the recess 12 is formed by evaporation or volatilization of water or solvent contained in the paint while using the water-based paint or the solvent-based paint. It is possible to make it difficult to reduce the volume of the base paint 13 filled in the container. Thereby, while the handleability and productivity can be improved, it is possible to effectively suppress darkening in the concave portion 12. In addition, such a water-based paint or solvent-based paint may be considered such that the paint that has entered the recess 12 is ejected to the surroundings when being dried, but since the recess 12 is filled with the base paint 13, Even if it is ejected, it is possible to suppress the influence on the design.

In addition, as the wooden decorative board 1 manufactured using the manufacturing method of the wooden decorative board which concerns on this embodiment, it is good also as not only the flooring 1 but a ceiling material, a wall material, a fitting material, a furniture material, etc.
Further, the wooden board 1A constituting the wooden decorative board 1 is not limited to the one in which the single board 10 is laminated on the base material 2, and the whole wooden board 1A may be made of natural wood (solid wood).
Further, the types and application modes of the base paint 13 and the coloring paint 14 are not limited to the above-described examples, and appropriate modifications are possible.

1 Wood veneer 1A Wood veneer 10 Single veneer (natural wood)
11 Surface 12 Conduit part (concave part)
13 Base paint 14 Coloring paint

Claims (2)

  A base paint corresponding to a paint obtained by removing a coloring component from a paint for coloring to be applied later is applied to the surface of a wooden board material having at least a surface layer made of natural wood and having a recess on the surface. A method for producing a wooden decorative board, wherein the coloring paint is applied before drying and curing. In claim 1,
The method for producing a wooden decorative board, wherein the base paint and the coloring paint are water-based paint or solvent-based paint.

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