JP2664626B2 - Method of manufacturing decorative veneer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a decorative veneer for a building, and more particularly to a method of manufacturing a decorative veneer for a building that expresses a stone surface.

[0002]

2. Description of the Related Art Conventionally, decorative veneer boards for artificially expressing the appearance of natural stones or other stone surfaces have been manufactured. The following manufacturing methods are available. After applying a sealer coating to the surface of the plate-shaped substrate as necessary, apply a coloring paint, spray fine stone-like particles on the upper surface of the lower coating layer of the coloring paint, and further apply the granular A transparent paint or the like is applied on the upper surface of the lower coating layer to form an upper coating layer so that the object does not fall off. After applying a sealer coating to the surface of the plate-like body as necessary, apply a coloring paint, and apply a paint to the upper surface of the lower coating layer of the coloring paint in a spot-like manner to form a spot-like coating. Form a film layer. After applying a sealer coating to the surface of the plate-shaped substrate as necessary, a coating material mixed with sand particles having a large particle size is applied to form a coating film layer.

[0003]

However, the above-described method of manufacturing a decorative veneer for a building has the following problems. In the production method of (1), it is necessary to spray fine particles such as fine stones, and this spraying step is troublesome and productivity is poor. In addition, since it is necessary to apply a transparent paint or the like so as to prevent the above-mentioned particulate matter from falling off and to form an upper coating film layer, the productivity is reduced. In the manufacturing method of
Since it is practically difficult to control the size of the speckled pattern of the speckled coating layer, very fine particles are attached to give a dull color appearance. Further, since the above-mentioned speckled coating layer is spray-painted, it tends to have an artificial appearance and is inferior in decorativeness. In the production method, it is called lysine coating, but aggregate particles such as sand particles become large, and a large amount of about ² to 5 kg / m ² is usually applied with a lysing gun, so that a rough appearance is obtained. However, it is difficult to express the fine appearance of stone skin, and it is necessary to apply a large amount of paint, so that productivity and manufacturing workability are poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to improve the productivity and manufacturing workability and to be able to express the appearance of a stone surface such as a natural stone. It is.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, a means taken by the present invention is to form an upper coating film layer by spray-painting a paint mixed with granular aggregate. It is. Specifically, in the means taken by the invention according to claim 1, first, a colored opaque paint is applied to the surface of the plate-like body to form a lower coating layer. Then, on the upper surface of the lower coating layer, 1
A structure in which a transparent or translucent paint having a particle size of 00 to 200 mesh and mixed with a granular aggregate having a different color from the colored opaque paint of the lower coating layer is applied by spraying to form an upper coating layer. And Further, the means taken by the invention according to claim 2 is that, after forming the undercoat layer according to the invention of claim 1, a color tone different from that of the colored opaque paint of the undercoat layer is formed on the upper surface of the undercoat layer. The intermediate layer is formed by applying a transparent or translucent paint mixed with the flake-like aggregates. Thereafter, the upper surface of the intermediate layer is mixed with a granular aggregate having a particle size of 100 to 200 mesh and a color tone different from any of the colored opaque paint of the lower coating layer and the scale-like aggregate of the intermediate layer. A translucent paint is applied by spraying to form an upper coating layer.

Further, the means taken by the invention according to claim 3 is that, after forming the lower coating film layer according to the invention according to claim 1,
On the upper surface of the undercoat layer, a paint having a color tone different from that of the colored opaque paint of the undercoat layer is applied in a spotted manner by a spray means to form a spotted intermediate layer. Then, on the upper surface of the intermediate layer, a transparent or translucent mixed particle aggregate having a particle size of 100 to 200 mesh and a color tone different from that of the colored opaque paint of the lower coating layer and the paint of the intermediate layer is mixed. The coating is applied by a spray means to form an upper coating layer.

[0007]

According to the first aspect of the present invention,
After the colored opaque paint is applied to the surface of the plate-like body, a transparent or translucent paint mixed with a granular aggregate having a color tone different from that of the colored opaque paint is spray-coated thereon. As a result, since the aggregate is mixed in the paint, the aggregate does not fall off and fine stones are not scattered, so that the productivity is improved. Further, since the paint mixed with the aggregate having a particle size of 100 to 200 mesh is applied by the spraying means, the workability is good and the appearance of the stone surface such as natural stone is expressed. In the invention according to claim 2, after applying a colored opaque paint to the surface of the plate-like body, a paint mixed with scaly aggregates is applied thereon, and further,
On top of that, a transparent or translucent paint mixed with the colored opaque paint and the granular aggregate having a color different from the scale-like aggregate is spray applied. As a result, the above claim 1
Since fine stones are not scattered similarly to the invention of the third aspect, productivity is improved, workability is good, and the appearance of stone surface of natural stone or the like is expressed. In addition, the scale-like aggregate on the colored opaque paint and the granular aggregate on the scale-like aggregate represent a three-dimensional and fine stone surface. Claim 3
In the invention according to the invention, after the colored opaque paint is applied to the surface of the plate-like body, the paint is applied thereon to the spotted pattern, and further, the colored opaque paint and the granular bone having a color tone different from the spotted pattern are further applied thereon. The transparent or translucent paint mixed with the material is spray applied. As a result, fine stones are not scattered as in the case of the first aspect of the present invention, so that productivity is improved, workability is good, and the appearance of natural stone or the like is expressed. In addition, the appearance of the dull color tone of the spot pattern is remarkably reduced by the granular aggregate, and a stone-like pattern is expressed.

[0008]

Therefore, according to the first aspect of the present invention,
On the lower coating layer coated with the colored opaque coating, a coating mixed with a granular aggregate having a color tone different from that of the colored opaque coating is applied to form an upper coating layer. The labor of spraying fine stones can be omitted,
Since it is not necessary to apply a large amount of paint, the productivity can be remarkably improved. On the other hand, the paint mixed with the granular aggregate is spray-coated, so that the workability can be improved. Furthermore, since the above-mentioned granular aggregate is applied, the undercoat layer of the colored opaque paint appears from between the granular aggregates, and it is possible to exhibit a three-dimensional effect, which is as beautiful as natural stone. A stone texture can appear.

According to the second aspect of the present invention, a paint mixed with a scaly aggregate having a color tone different from that of the colored opaque paint is applied to the lower coating layer coated with the colored opaque paint. A layer is formed, and on the intermediate layer, a paint mixed with the colored opaque paint and the granular aggregate having a different color from the scale-like aggregate is applied to form an upper coating layer. Similar to the first aspect, it is possible to omit the trouble of spraying fine stones, and it is not necessary to apply a large amount of paint, so that productivity can be remarkably improved, while spraying paint mixed with granular aggregates. Since the coating is performed by the means, the workability can be improved, and it can be manufactured in a continuous coating process, so that the production can be performed efficiently. Further, since the scaly aggregate is planar, a clear and planar spot-like pattern can be formed, and at the same time, a three-dimensional granular aggregate disposed on the scaly aggregate. However, in combination with scaly aggregates, it is possible to express fine stone skin like natural stone. That is, the colored opaque paint of the lower coating layer appears from between the scale-like aggregates, and the appeared colored opaque paint and a part of the clear and planar scale-like aggregates are granular. Since it appears from between the aggregates, it is possible to express a complex three-dimensional and deep stone texture with different colors, and thus it is possible to form a highly decorative surface appearance.

According to the third aspect of the present invention, an intermediate layer having a spot pattern is formed by applying a paint having a color tone different from that of the colored opaque paint on the lower coating layer coated with the colored opaque paint, On the intermediate layer, a paint mixed with the colored opaque paint and a granular aggregate having a color tone different from the speckled pattern is applied so as to form an upper coating film layer. The work of spraying fine stones can be omitted, and it is not necessary to apply a large amount of paint, so that productivity can be significantly improved, while the paint mixed with spotted paint and particulate aggregate is sprayed. Since painting is performed, workability can be improved. Furthermore, the appearance of a dull color tone, which was a drawback of the spot pattern, can be significantly reduced because the granular aggregate of the upper coating layer overlaps with the spot pattern, and furthermore, the flat spots The pattern and the three-dimensional granular aggregate work together to improve the decorativeness. That is, the colored opaque paint of the lower coating layer appears from between the spotted patterns, and the appeared colored opaque paint and a part of the planar spotted pattern appear from between the granular aggregates. So, different colors and deep stone textures are expressed,
A highly decorative surface appearance can be formed.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of the invention according to claim 1, wherein 1 is a decorative veneer for building manufactured by the manufacturing method of the present invention. After a sealer coating is applied to the upper surface of the substrate 2, a colored opaque paint is applied to form the lower coating layer 3 on the substrate 2. Then, 100 to 20 on the upper surface of the lower coating layer 3
A transparent or translucent paint mixed with a granular aggregate 4 having a mesh size and a color tone different from that of the colored opaque paint of the lower coat layer 3 is applied by a spray gun as a spray means to form an upper coat layer. 5 are formed. Therefore, each requirement will be described in detail below.

<Regarding Substrate 2> Substrate 2 in the present invention
Although the material is not particularly limited, it should be used as a decorative plate that can withstand the weather, such as exterior materials, in order to form a finished appearance that artificially expresses the stone surface appearance of natural stone and the like. It is preferably an inorganic plate in order to be able to perform the process. Examples of the inorganic plate include cement mixed with organic or inorganic reinforcing fibers or aggregates, and asbestos cement calcium silicate plate, calcium silicate plate, slate, slag cement plate, magnesium carbonate plate, wood chip cement. There is a cement board mixed with woody material such as a board. Further, the above-mentioned inorganic plate is formed by a wet papermaking method (a slurry is formed by adding a large amount of water, and the slurry is formed into a mat-like shape by a round-mesh papermaking machine or the like, and formed and cured to a predetermined shape or density by pressing or the like. ) Or semi-dry method (for example, mixing wood material such as cement with wood chips and moisture necessary for hardening of cement to form a mat of patsapasa, clamping it with a plate or embossed plate and pressing To form a plate shape) or an extrusion molding method. Further, the substrate 2 may be provided with irregularities such as an embossed pattern such as a stone surface or a joint groove pattern.
As a method of providing this concavo-convex pattern, a method of roll embossing a wet-formed green sheet, or a method of press embossing, a mat formed by a semi-dry method,
Pressing and embossing with an embossed plate engraved with an uneven pattern, forming a plate shape and applying an uneven pattern at the same time, or applying an uneven pattern in the longitudinal direction during extrusion molding, curing and curing, then cutting with a router etc. There are methods. Further, when forming a complicated uneven pattern, deep joint groove pattern, or the like, it is preferable to form the pattern at the same time as molding with an emboss plate in terms of productivity and a point that a good uneven pattern can be obtained. As described above, the surface of the substrate 2 is coated with a sealer on the substrate 2 in order to improve the adhesion between the substrate 2 and the colored opaque paint of the lower coating layer 3. This sealer treatment coating is not always necessary if the adhesion between the substrate 2 to be used and the colored opaque paint is good. However, in the case of an inorganic plate, the adhesion is often insufficient. A resin mainly composed of a urethane-based resin is used.

<Regarding Lower Coating Layer 3> As the paint to be applied to the substrate 2, a solvent system called a colored opaque paint is used.
Alternatively, a water-based paint is applied. These colored opaque paints include urethane resins, acrylic resins, acrylic urethane resins, alkyd resins, polyester resins,
Fluorine-based resin, or synthetic resin such as silicon-based resin dissolved in a solvent-based, containing white pigments and color pigments with a base-concealing property, or other colorants as appropriate coloring components If necessary, paint components such as extender pigments are mixed. Then, such colored opaque coating is applied in a range of ^{50g / m 2 ~200g / m 2} . Therefore, a method of applying the colored opaque paint will be described. When a colored opaque paint is applied to the substrate 2, for example, it is applied to the entire surface of the substrate 2 by a spray coater, a roll coater, a flow coater, or the like. The colored opaque paint may be applied not only once, but also in two or more applications. Further, the substrate 2 may have uneven joints having a depth and surface irregularities such as stones. In the case of the substrate 2, after applying a colored coating on the entire surface of the uneven substrate 2 with a spray coater or a flow coater, only the surface convex portion is colored differently from the above-mentioned colored opaque by a roll coater, or a joint concave portion or surface convex portion Can be masked to apply a coating different from the above colored opaque paint.

<Regarding Upper Coating Layer 5> First, the paint in the upper coating layer 5 is a urethane resin, an acrylic resin, an acrylic urethane resin, an alkyd resin, a polyester resin in the above-mentioned colored opaque paint. Synthetic resin such as fluorine resin or silicon resin is used,
A granular aggregate 4 having a particle size of 100 to 200 mesh and a color tone different from that of the colored opaque paint of the lower coating layer 3 is added to the synthetic resin.
Is coated with a spray gun to form the upper coating layer 5. If the size of the granular aggregate 4 exceeds 100 mesh, the aggregate 4
Becomes too coarse, and if it is less than 200 mesh, it becomes too fine, and in any case, it is not preferable to express a stone texture pattern rich in natural feeling. From this, 100-20
Aggregate 4, formed of three-dimensional particles having a particle size of 0 mesh,
Alternatively, the fact that most (80% or more) is formed of such an aggregate 4 is an essential requirement for achieving the object of the present invention of expressing a natural stone texture. Also, 100
In the case of aggregate 4 having particles larger than the mesh, it is necessary to apply with a large-diameter spray gun so as not to cause clogging. As a result, if the amount of application is not increased, the dispersion becomes large, and the amount of application is reduced. When the amount is increased, the effect of the present invention in that the colored opaque paint of the base material appears between the aggregate particles is less likely to occur, and the granular aggregates smaller than 100 mesh 4
Must be used. On the other hand, when the aggregate 4 is smaller than 200 mesh particles, the texture of the stone surface is poor, and the feeling that the colored opaque paint appears from between the particles due to being too fine is lost, and the decorativeness is reduced. Will be lost. Such a granular aggregate 4 can use natural stone grains, sand grains, artificial inorganic particles, and the like. In addition, a plastic or metallic material can be used, and a material having a different color from the colored opaque paint or a material having a different color can be used. Also,
The aggregate 4 may be a mixture of a plurality of colors. The aggregate 4 is used by being mixed in a resin used for a transparent or translucent top layer coating material, and is preferably mixed in an amount of about 3 to 60% by weight based on the resin. The transparent or translucent paint may be mixed with a coloring agent, an extender, or other additives to such an extent that the transparency or translucency is not impaired.

Therefore, according to this embodiment, a paint mixed with a granular aggregate 4 having a color tone different from that of the above-mentioned colored opaque paint is applied to the lower paint film layer 3 to which the colored opaque paint is applied. In order to form the layer 5, it is possible to omit the work of spraying fine stones as in the related art, and it is not necessary to apply a large amount of paint, so that productivity can be significantly improved. Since the paint mixed with the granular aggregate 4 is spray-painted, workability can be improved. Furthermore, since the granular aggregate 4 is applied, the lower coating layer 3 of the colored opaque paint appears from between the granular aggregates 4, so that a three-dimensional effect can be exhibited, such as natural stone. A beautiful stone skin pattern can appear.

FIG. 2 shows an embodiment according to the second aspect of the present invention. First, similarly to the previous embodiment, a colored opaque paint is applied to the substrate 2 to form the lower coating layer 3. . As a feature of the present embodiment, a transparent or translucent paint mixed with a flaky aggregate 6 having a color tone different from that of the colored opaque paint of the undercoat layer 3 is provided on the upper surface of the undercoat layer 3. The intermediate layer 7 is formed by coating with a roll coater. Then, as in the previous embodiment, 100
Spraying a transparent or translucent paint having a particle size of 200 mesh and mixed with a colored opaque paint of the lower coating layer 3 and a granular aggregate 4 different in color from any of the scaly aggregate 6 of the intermediate layer 7 The upper coating layer 5 is formed by coating with a gun. Therefore, the intermediate layer 7 will be described. First, the transparent or translucent paint in the intermediate layer 7 is a urethane resin, an acrylic resin,
A synthetic resin such as an acrylic urethane resin, an alkyd resin, a polyester resin, a fluorine resin, or a silicon resin is used. The scaly aggregate 6 is formed of various materials such as plastic, mica, ceramic, metal, and paper, and has a color tone different from that of the colored opaque paint in the lower coating layer 3. . The scaly aggregate 4 is flat and has a size of 0.05 to 5.00 mm.
Are used. In other words, if it is less than 0.05 mm, it is too fine and cannot be distinguished from speckles, and the design value is remarkably inferior. Conversely, if it exceeds 5.00 mm, the speckles become too large and rather the decorative value Is to be reduced. The intermediate layer 7 can be formed by a spray coater, but is preferably formed by a roll coater. That is, when applied by the above-mentioned roll coater, the scaly aggregate 4 is pressed by the application roll, and the scaly aggregate 4 appears as an uneven plane, and is buried in the resin, and stands up. Since the projection does not occur, the film thickness is reduced.

Therefore, according to the present embodiment, a paint mixed with the flake-like aggregate 6 having a color tone different from that of the above-mentioned colored opaque paint is applied to the lower coating layer 3 to which the colored opaque paint is applied. 7 is formed on the intermediate layer 7, and a paint mixed with the colored opaque paint and the granular aggregate 4 having a color tone different from that of the scale-like aggregate 6 is applied to form the upper coating layer 5. First, as in the previous embodiment, the labor for spraying fine stones can be omitted, and there is no need to apply a large amount of paint, so that productivity can be significantly improved, while the granular aggregate 4 can be improved.
Since the paint mixed with is spray-painted, workability can be improved, and it can be manufactured in a continuous coating process, so that efficient production can be achieved. Furthermore,
Since the scaly aggregate 6 becomes planar, a clear and planar spot-like pattern can be formed,
The three-dimensional granular aggregate 4 arranged on the scaly aggregate 4 can express a fine stone surface like a natural stone in combination with the scaly aggregate 6. That is, the colored opaque paint of the lower coating layer 3 appears between the flake aggregates 4 and the developed colored opaque paint and the clear and planar flake aggregate 4
And some of the spots appear from between the granular aggregates 4,
Since it is possible to express a complex three-dimensional deep texture with different colors, it is possible to form a highly decorative surface appearance.

FIG. 3 shows an embodiment of the third aspect of the present invention. Instead of the intermediate layer 7 in the previous embodiment, the colored opaque layer of the lower coating layer 3 is provided on the upper surface of the lower coating layer 3. A paint having a color tone different from that of the paint is applied in the form of spots by a spray gun as a spraying means to form a spotted intermediate layer 8. Therefore, the intermediate layer 8 will be described. First, the paint in the intermediate layer 8 is a synthetic resin such as a urethane-based resin, an acrylic resin, an acrylic urethane-based resin, an alkyd-based resin, a polyester-based resin, a fluorine-based resin, or a silicon-based resin in the above-described colored opaque paint. Then, an opaque paint mixed with a coloring agent different from the above-mentioned colored opaque paint is used, and this paint is applied in a spot shape by a spray gun. The intermediate layer 8 is, for example, an atomizing pressure of 0.3 to 2.0 kg / cm ² , and a discharge pressure of 0.3 to 2.5 kg /
It is formed by application in a range of cm ² and a discharge rate of 50 to 1500 cc / min. Then, similarly to the previous embodiment, the upper surface of the intermediate layer 8 has a particle size of 100 to 200 mesh and a color tone different from any of the colored opaque paint of the lower coating layer 3 and the paint of the intermediate layer 8. A transparent or translucent paint mixed with the aggregate 4 is applied by a spray gun to form the upper coating layer 5. Therefore, according to the present embodiment, on the lower coating layer 3 to which the colored opaque paint has been applied, a paint having a color tone different from that of the colored opaque paint is applied to form the spotted intermediate layer 8. A fine stone is formed in the same manner as in claim 1, wherein the upper coating film layer 5 is formed by applying a coating material mixed with the colored opaque coating material and the granular aggregate 4 having a color tone different from that of the spot pattern. The time and labor for dispersing the paint can be omitted, and it is not necessary to apply a large amount of paint. Therefore, the productivity can be remarkably improved, while the paint containing the spotted paint and the particulate aggregate 4 is spray-coated. Therefore, workability can be improved. Furthermore, the appearance of a dull color tone, which was a drawback of the spot pattern, can be remarkably reduced because the granular aggregate 4 of the upper coating layer 5 overlaps with the spot pattern, and furthermore, the planarity is low. The decorative pattern can be improved by the combination of the speckled pattern and the three-dimensional granular aggregate 4. That is, the colored opaque paint of the lower coating layer 3 appears from between the spotted patterns, and the appeared colored opaque paint and a part of the planar spotted pattern appear from between the granular aggregates 4. As a result, stone patterns with different colors and depth are expressed, and a highly decorative surface appearance can be formed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a decorative panel for construction showing a first embodiment.

FIG. 2 is a sectional view of a decorative panel for construction showing a second embodiment.

FIG. 3 is a cross-sectional view of a decorative panel for construction showing a third embodiment.

[Explanation of symbols]

 1 Decorative veneer 2 Substrate 3 Lower coating layer 4 Granular aggregate 5 Upper coating layer 6 Scale-like aggregate 7,8 Intermediate layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location E04F 13/08 8913-2E E04F 13/08 F

Claims (3)

(57) [Claims] 1. After coating a colored opaque paint on the surface of a plate-like body to form a lower coating layer, subsequently, a 100-200 mesh particle size and A method for producing an architectural decorative board, characterized in that a transparent or translucent paint mixed with a granular opaque paint having a different color from the colored opaque paint of the paint film layer is applied by spraying to form an upper paint film layer. . 2. A colored opaque paint is applied to the surface of the plate-like body to form an undercoat layer, and a scale having a color tone different from the colored opaque paint of the undercoat layer is formed on the upper surface of the undercoat layer. An intermediate layer is formed by applying a transparent or translucent paint mixed with aggregates, and then, on the upper surface of the intermediate layer, a colored opaque paint having a particle size of 100 to 200 mesh and in the lower coating layer. And a transparent or translucent paint mixed with a granular aggregate having a color tone different from that of any of the scale-like aggregates in the intermediate layer by spraying means to form an upper coating layer. Manufacturing method. 3. A colorless opaque paint is applied to the surface of the plate-like material to form an undercoat layer, and a paint having a color tone different from that of the undercoat layer on the upper surface of the undercoat layer. Is applied in a spotted manner by a spray means to form a spotted intermediate layer, and then, on the upper surface of the intermediate layer, a particle size of 100 to 200 mesh and a colored opaque paint in the lower coating layer and the intermediate layer A method for producing a decorative board for building, characterized in that a transparent or translucent paint mixed with a granular aggregate having a color tone different from any of the paints is applied by spraying to form an upper coating layer.