JP2015016601A - Wood decorative sheet manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood decorative sheet manufacturing method capable of highlighting grain contrast and easily improving productivity.SOLUTION: A method of manufacturing a woody decorative plate 1 includes: applying sealer 15 so as to adhesively apply the sealer 15 only to convex portions 12 of an irregular shape formed by performing a floating process on a surface of a wood sheet material 1B at least surface layer portion of which is formed out of a natural wood material 10; and applying paint 16 containing a color agent.

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 wood decorative board used as a flooring material, a ceiling material, a wall material or the like.
For example, in Patent Document 1 below, a veneer veneer is bonded to a base material, the surface is brushed to make it float, and then the paint is applied to the surface so that the spring material part penetrates. A method of manufacturing a flooring material in which the surface of the autumn wood part is sanded and finished is disclosed.

JP-A-5-77210

  However, in the manufacturing method described in the above-mentioned Patent Document 1, the paint applied to the autumn material part that becomes the convex part after the float-working process is removed by sanding, so that the ground color of the autumn material part appears. . For this reason, sanding powder is generated, the removal work is caused, and the paint is wasted. Further improvement is desired. It is also possible that the texture of the natural texture due to floating is reduced.

  This invention is made | formed in view of the said situation, and it aims at providing the manufacturing method of the woody decorative board which emphasizes the contrast of a grain and can improve productivity simply.

  In order to achieve the above object, the method for producing a wooden decorative board according to the present invention is applied only to the convex and concave portions formed by subjecting at least a surface of a wooden board material whose surface layer portion is made of natural wood to float processing. A sealer is applied so as to be applied, and then a paint containing a colorant is applied.

  In the present invention, the sealer may be applied by using a rubber roll so as not to adhere to the concave and convex portions formed on the surface of the wooden board material by performing the floating process.

  The wood decorative board manufacturing method according to the present invention is configured as described above, thereby enhancing the contrast of the grain and improving the productivity easily.

(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 the present embodiment, the surface 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 surface treatment to be described later. It is set as the structure which manufactures FIG.1 (e).
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 single plate 10 may be set to, for example, about 0.2 mm to 2.0 mm from the viewpoint of workability of the float process described later, cost, and the like. Further, examples of the natural tree constituting the veneer 10 include beech, oak, cedar, mekaba, beach, oak, teak, hard maple, cherry, walnut, white ash, mahogany, and other various tree species. Further, the natural wood constituting the veneer 10 is made of a tree species having a relatively large hardness difference (density difference) between the autumn wood part (late wood part) 11 and the spring wood part (early wood part) 13. It is also possible (see FIG. 1 (a)).

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, these may be performed after the float fabrication process described later, and may not be provided with any of the real parts 3 and 4, the chamfered part 5, and the groove part 6.

Then, as shown in FIGS. 1 (a) and 1 (b), a float processing step is performed in which a float processing is performed on the surface of the wood board 1A having at least a surface layer portion made of a single plate 10 as natural wood.
This floating process may be performed by brushing or sand blasting. For example, the float processing may be performed by scraping (scraping) the surface portion of the spring material portion 13 of the veneer 10 with a brush made of a large number of synthetic resin wires or metal wires.
By this floating process, as shown in FIG. 1 (b), the surface of the wooden board 1 B after the floating is formed on the surface of the convex part 12 mainly composed of the autumn material part 11 and the concave part mainly composed of the spring material part 13. 14 are formed.

Next, as shown in FIGS. 1B and 1C, a sealer coating process is performed in which a sealer 15 is applied so as to be applied only to the concavo-convex convex portions 12 on the surface of the wooden board 1B after being floated. .
In the present embodiment, the sealer 15 is applied using a rubber roll so as not to adhere to the concave and convex portions 14 formed on the surface of the wood board 1B by being floated. In other words, the sealer 15 is applied by the roll coater method so that the rubber roll having the sealer 15 attached to the peripheral surface is brought into contact with only the convex portion 12.
As this rubber roll, although depending on the pressure contact (nip) mode to the surface of the wood board 1B, etc., it may be relatively high in rubber hardness. For example, JIS A (JIS K 6253 type A durometer) hardness is It may be about 40 to 80 degrees. As the rubber roll, an appropriate roll core may be coated with ethylene / propylene rubber, chloroprene rubber, hyperon rubber, nitrile rubber, silicone rubber, urethane rubber, butyl rubber or the like.

The sealer 15 may be applied by a single rubber roll, or may be applied by using a first rubber roll, then scraping with a reverse roll and applying with a second rubber roll. Such an application mode of the sealer 15 may be appropriately set according to the tree type of the veneer 10, ease of suction, or the like. Further, as the reverse roll, a metal reverse roll subjected to a plating process, a rubber roll, or the like may be adopted.
Moreover, you may make it apply | coat the sealer 15 adjusted to the viscosity which suppresses dripping to the recessed part 14, etc. The viscosity of the sealer 15 may be set according to the tree type of the veneer 10 and the ease of suction. For example, a sealer 15 at 35 ° C. is used with a Zahn cup NO. It is good also as a viscosity (approximately 100-330 mPa * s) so that the measurement second measured using 5 may be 8-20 seconds.

Further, the sealer 15 can appropriately penetrate into the veneer 10 (convex portion 12) and can suppress the penetration of the paint 16 (see FIG. 1 (d)) containing the colorant described later into the convex portion 12. Alternatively, it may be possible to impart crack resistance or the like to the portion where the sealer 15 is applied.
In the present embodiment, as an example of the sealer 15, 5 parts by mass of “IST NO. 15 (manufactured by NATCO Corporation)” is blended with 100 parts by mass of “IST3251 adjustment clear (manufactured by NATCO Corporation)”. It is supposed to be. Moreover, you may make it apply | coat this sealer 15 so that it may become about 1.0 g / scale ² by solid content with a rubber roll. Alternatively, the sealer 15 may be applied by the first rubber roll and the second rubber roll so that the solid content is about 1.0 g / scale ² respectively.

Further, after the sealer 15 is applied, the sealer 15 may be appropriately dried and cured. The mode of drying and curing the sealer 15 may be an appropriate mode according to the type of the sealer 15. For example, in the case of an ultraviolet curing type, it may be cured by an ultraviolet irradiation lamp or the like. It may be air-dried or naturally dried.
1C to 1E, the coating layer of the sealer 15 is formed on the surface of the convex portion 12, but depending on the type of the sealer 15, the convex portion 12 is generally The whole may be penetrated.

Next, as shown in FIGS. 1 (c) and 1 (d), a coloring process is performed in which a paint (colored paint) 16 containing a colorant is applied to the surface of the wood board 1 </ b> C in which the sealer 15 is applied to the convex portion 12. Run.
In this coloring step, since the sealer 15 is applied to the convex portion 12, the penetration of the colored paint 16 into the convex portion 12 is suppressed, and the colored paint 16 mainly penetrates and is applied to the concave portion 14. The Rukoto.

Further, in this coloring step, the concave portion 14, that is, the spring material portion 13 may be colored so as to be darker than the ground color of the convex portion 12, that is, the autumn material portion 11. For example, the colored paint 16 may be applied so that the concave portion 14 is adjusted to a primary color ratio that is darker than the convex portion 12 and has an appropriate concentration.
Or in this coloring process, you may make it color so that the recessed part 14 made lighter than the ground color of the convex part 12 may become further lighter. For example, you may make it apply | coat the white-colored coating material 16 in which the recessed part 14 becomes lighter than the ground color.

  Further, in this coloring step, the colored coating 16 may be applied by a roll coater method, as in the sealer application step. For example, you may make it apply | coat using a sponge roll and a reverse roll similar to the above. That is, the colored paint 16 may be applied to the concave portion 14 of the wood board 1C by appropriate deformation of the sponge roll. Further, the colored paint 16 applied to the convex portion 12 (the coating layer of the sealer 15 on the convex portion 12) is scraped off by the reversely rotating reverse roll, and the colored paint 16 is poured into the concave portion 14. The colored paint 16 may be applied. Moreover, you may make it apply | coat the colored coating material 16 further using a rubber roll etc. as needed.

The colored paint 16 may be an aqueous synthetic resin paint 16 obtained by diluting an aqueous synthetic resin colorant mainly composed of a pigment or dye as a coloring component with a diluent, and various other colored paints 16 may be used. Is possible.
Further, after applying the colored paint 16, the colored paint 16 may be appropriately dried and cured as described above.
1D and 1E, the coating layer of the colored paint 16 is formed on the surface of the concave portion 14, but depending on the type of the colored paint 16, the concave portion 14 is shown. It is good also as what the whole was osmose | permeated.

And the finish coating process of forming the transparent or translucent topcoat layer (protective layer) 17 as needed as shown in FIG.1 (e) on the surface of the wooden board | plate material 1D colored as mentioned above May be executed to manufacture the flooring (wooden decorative board) 1.
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.
FIG. 1 (e) shows an example in which the surface of the wooden decorative board 1 after the top coat layer 17 is formed has a concavo-convex shape corresponding to the concavo-convex shape after the float processing. The formation of the layer 17 may be substantially smooth.

The method for manufacturing a wood decorative board according to the present embodiment has the above-described configuration, so that the contrast of the grain can be enhanced and the productivity can be easily improved.
In other words, the sealer 15 is applied so as to be applied only to the concavo-convex convex portions 12 formed on the surface of the wood board 1B by performing a floating process, and then a paint (colored paint) 16 containing a colorant is applied. I try to apply. Accordingly, it is difficult for the colored paint 16 to permeate into the autumn wood part 11 of the wood that becomes the convex part 12 to which the sealer 15 is applied, and the spring wood part 13 itself in the spring wood part 13 that becomes the concave part 14. In combination with the autumn material portion 11 being more permeable, the colored paint 16 is likely to penetrate. Thereby, the contrast of the autumn wood part 11 and the spring wood part 13 can be emphasized. Moreover, since the sealer 15 is applied so as to be applied only to the convex portion 12, the sealer 15 is not wasted. In addition, since the sealer 15 is applied to the convex portion 12 in this manner, the penetrability of the colored paint 16 into the convex portion 12 can be suppressed. A powder removal process or the like is unnecessary, and productivity can be easily improved.

  In the present embodiment, the sealer 15 is applied using a rubber roll so as not to adhere to the concave and convex portions 14 formed on the surface of the wood board 1B by floating. Therefore, for example, the sealer 15 can be applied more easily than in the case where the sealer 15 is applied so as to be applied only to the convex portion 12 by inkjet coating or the like based on the captured image data. Can be further improved.

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 application mode of the sealer 15 and the application mode of the colored paint 16 are not limited to the above-described examples, and appropriate modifications are possible.

1 Wood decorative board 1B Wood board 10 Single board (natural wood)
12 Convex part 14 Concave part 15 Sealer 16 Colored paint (paint containing colorant)

Claims (2)

  Apply the sealer so that it is applied only to the convex and concave parts formed by floating the surface of the wooden board material with at least the surface layer made of natural wood, and then apply the paint containing the colorant A method for producing a wooden decorative board, comprising: In claim 1,
A method for producing a wooden decorative board, wherein the sealer is applied using a rubber roll so as not to adhere to the concave and convex portions formed on the surface of the wooden board material by performing the floating process.

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