Formation method of decoration coating

Abstract

To provide a formation method of a decoration coating which can form a linear pattern having a border part, such as a butted part, and is excellent in aesthetic quality.SOLUTION: The invention relates to a formation method of a decoration coating. The formation method includes: S1 step in which a surface to be coated is divided into two areas (an area S1 and an area S2), a coating material is applied to the area S1, and the coating material is dragged by a pattern providing tool in a period that the coating material is undried to form a linear pattern; and S2 step in which the coating material is applied to the area S2 and the coating material is dragged by the pattern providing tool in a period that the coating material is undried to form a linear pattern. The area S1 and the area S2 have overlapping parts.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a method for forming a decorative coating. [Background technology]

[0002] Conventionally, decorative coatings having various patterns have been formed on the wall surfaces of buildings, civil engineering structures, etc. One example of such decorative coatings is a decorative coating in which a pattern is formed by using a specific pattern-applying tool.

[0003] In recent years, buildings with designs that incorporate a wood grain look have become especially popular. For example, Patent Document 1 describes a wood grain pattern painting method in which the applied coating film is scraped off in a semi-dried state with a brush-like object to create numerous streaks. Patent Document 2 describes a hairline pattern painting method in which a color coating film applied to a substrate is brushed with a brush to form streaks. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-168191 A [Patent Document 2] JP 2001-17909 A Summary of the Invention [Problem to be solved by the invention]

[0005] In actual buildings, many wooden members are constructed by butting together, and this butting (boundary line) is visible, enhancing the design. However, Patent Documents 1 and 2 simply form linear patterns, and do not take into consideration the addition of boundary lines originating from the butting. [Means for solving the problem]

[0006] In order to solve these problems, the present inventors have discovered a method for forming a decorative coating that forms a linear pattern having a boundary portion such as a bump portion, and have completed the present invention.

[0007] That is, the present invention has the following features. 1. A method for forming a decorative coating, comprising the steps of: Divide the surface to be coated into at least two areas (area S1, area S2), A step S1 of applying a coating material to the region S1 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; A step S2 of applying a coating material to the region S2 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; Including, A method for forming a decorative coating, characterized in that the region S1 and the region S2 have an overlapping portion. 2. The method for forming a decorative coating according to claim 1, wherein the pattern-applying tool is a mixture of at least two or more types of sponge materials having different hardness and / or density. 3. The method for forming a decorative coating according to 1 or 2, wherein the pattern applying tool has projections and recesses. Effect of the Invention

[0008] The present invention can form a linear pattern having a boundary portion such as a bump portion, and can form a decorative coating having excellent aesthetic appearance. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 shows an example of a patterning tool according to the present invention. [Diagram 2] FIG. 2 shows an example of a patterning tool of the present invention. [Diagram 3] FIG. 3 shows an example of a patterning tool of the present invention. [Figure 4] FIG. 4 shows an example of a patterning tool of the present invention. [Diagram 5] FIG. 5 shows an example of a patterning tool of the present invention. [Figure 6] FIG. 6 shows an example of a patterning tool of the present invention. [Figure 7] FIG. 7 is an example of a model diagram of the decorative coating forming method of the present invention. [Figure 8] FIG. 8 is an example of a model diagram of the decorative coating forming method of the present invention. [Figure 9] FIG. 9 is an example of a model diagram of the decorative coating forming method of the present invention. [Figure 10] FIG. 10 is a model diagram of an example of the decorative coating forming method of the present invention. [Figure 11] FIG. 11 is an example of a model diagram of the decorative coating forming method of the present invention. [Explanation of symbols]

[0010] A: Patterning tool A: Contact surface Ae: Edge part At: thickness direction A1~A5: Sponge material B: Support part C: Handle S: Painted surface S1: Area S1 S2: Area S2 S3: Area S3 S12: overlapping area of ​​area S1 and area S2 S13: overlapping area of ​​area S1 and area S3 S23: overlapping area of ​​area S2 and area S3 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described.

[0012] The present invention relates to a method for forming a decorative coating, the method comprising the steps of: Divide the surface to be coated into at least two areas (area S1, area S2), A step S1 of applying a coating material to the region S1 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; A step S2 of applying a coating material to the region S2 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; Including, The region S1 and the region S2 are characterized by having an overlapping portion.

[0013] <Surface to be coated> The coated surface in the present invention is preferably the surface of a substrate such as a building or civil engineering structure, particularly a substrate constituting the surface of an interior or exterior wall, ceiling, fittings, etc. Examples of such substrates include gypsum board, concrete, mortar, porcelain tile, brick, cement board, fiber-mixed cement board, cement calcium silicate board, perlite board, ALC board, siding board, extrusion molding board, plywood, wood board, steel plate, plastic plate, glass plate, etc. The surfaces of these substrates may be subjected to some kind of surface treatment (e.g., a sealer, a surfacer, a filler, etc.), may already have a coating film formed thereon, may have wallpaper attached thereto, or may have an uneven pattern.

[0014] <Coating material> The coating material in the present invention is not particularly limited, and known clear paints, colored paints, etc. can be used. Such coating materials include those containing a binder, or those containing a binder and a pigment (colored pigment, extender pigment) or dye. The coating material can also include known additives. In the present invention, the color, gloss, etc. can be set by adjusting the type of pigment or dye, the mixing ratio of each component, etc.

[0015] Specifically, the coating material of the present invention is preferably a colored paint containing a binder and a pigment (color pigment, extender pigment).

[0016] Examples of the binder include water-soluble resins, water-dispersible resins, solvent-soluble resins, solventless resins, non-water-dispersible resins, and the like, or composites thereof. These may have crosslinking reactivity, and the form is not particularly limited, and may be either one-liquid type or two-liquid type. In the present invention, water-dispersible resins and / or water-soluble resins are particularly preferably used. Examples of the types of resins that can be used include cellulose, polyvinyl alcohol, ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, silicone resin, acrylic resin, urethane resin, acrylic silicone resin, fluororesin, and the like, or composites thereof.

[0017] As the pigment, known color pigments, extender pigments, etc. can be used. Of these, as the color pigment, both organic and inorganic pigments can be used. As the organic pigment, for example, phthalocyanine pigments such as phthalocyanine blue and phthalocyanine green, azo pigments such as monoazo red, fast yellow, permanent yellow, and disazo yellow, perylene pigments such as perylene red, quinacridone pigments such as quinacridone red, isoindolinone pigments, methine azomethine pigments, benzimidazolone pigments, dioxazine pigments, etc. can be mentioned. As the inorganic pigment, for example, titanium oxide, tin oxide, zinc oxide, iron oxide, carbon black, lamp black, bone black, graphite, black iron oxide, copper chrome black, cobalt black, copper manganese iron black, red iron oxide, yellow iron oxide, titanium yellow, chrome green, cobalt green, ultramarine blue, Prussian blue, cobalt blue, indium oxide, bismuth oxide, tungsten oxide, aluminum pigments, pearl pigments, etc. can be mentioned. By using one or more of these color pigments, any desired hue can be obtained.

[0018] In the present invention, it is preferable that the color pigment contains an inorganic pigment. This allows the linear pattern to be maintained for a long period of time. In addition, by containing black pigments such as carbon black, lamp black, bone black, graphite, black iron oxide, copper chrome black, cobalt black, and copper manganese iron black as the inorganic pigment, it is easy to obtain a shading of the color of the linear pattern, and a more natural linear pattern can be formed, and a decorative coating with excellent aesthetics can be formed.

[0019] The average particle size of the color pigment is preferably 2 μm or less (more preferably 0.01 to 1 μm). The average particle size of the color pigment is a value measured by a laser diffraction particle size distribution measuring device.

[0020] The content of the color pigment is preferably 2 to 80 mass % (more preferably 3 to 70 mass %, and even more preferably 5 to 60 mass %) based on the total solid content in the coating material.

[0021] Examples of extender pigments include heavy calcium carbonate, kansuiite, light calcium carbonate, white carbon, talc, kaolin, clay, china clay, diatomaceous earth, barite powder, barium sulfate, precipitated barium sulfate, silica sand, silica powder, quartz powder, resin beads, glass beads, hollow balloons, and the like. One or more of these can be used.

[0022] The average particle size of the body pigment is not particularly limited, but is preferably less than 50 μm (more preferably 0.5 to 45 μm). The average particle size of the body pigment is a value measured by a laser diffraction particle size distribution measuring device.

[0023] In the present invention, the coating material can be adjusted to a desired gloss by appropriately setting the type of the extender pigment, the mixing ratio, etc. The coating material of the present invention may be, for example, either glossy or matte (including 70% gloss, 50% gloss, 30% gloss, etc.). The content of the extender pigment is preferably 0 to 70 mass % based on the total solid content in the coating material.

[0024] In addition to the above components, the coating material of the present invention may contain known additives, such as dyes, thickeners, wetting agents, antifreeze agents, film-forming assistants, preservatives, antifungal agents, anti-algae agents, antibacterial agents, dispersants, antifoaming agents, UV absorbers, light stabilizers, antioxidants, catalysts, dilution solvents, etc., within the scope of not significantly impairing the effects of the present invention. The coating material can be produced by uniformly mixing the above-mentioned components by a conventional method.

[0025] The solid content of the coating material of the present invention is preferably 30 to 95% by mass (more preferably 35 to 90% by mass).

[0026] In addition, it is preferable that the covering ratio of the formed film of the coating material satisfies the following condition (I). Specifically, when the covering ratio of the formed film of the coating material (undiluted: dilution ratio 0%) is the covering ratio (x), (I) Concealment rate (x) ≧ 70% The covering material preferably has a hiding ratio (x) of 70% or more (more preferably 80% or more, and even more preferably 90% or more and 100% or less). If the hiding ratio of the covering material is within this range, the hiding power (transparency) changes depending on the thickness of the coating film formed by the covering material, and in combination with the color of the coated surface, a natural linear pattern can be imparted. Specifically, by dragging the coating material with a patterning tool, the remaining amount of coating material differs in parts, forming a linear pattern with a varying thickness of the formed coating. This results in a multi-stage visible color, and a natural linear pattern with a mixture of multiple colors can be formed. Furthermore, a linear pattern with a boundary such as a butt joint can be formed.

[0027] In addition, it is preferable that the coating material satisfies the following condition (II) and / or the following condition (III). Specifically, The hiding ratio of the coating film formed by diluting the coating material 100% with a dilution solvent (e.g., water) is the hiding ratio (y), If the hiding ratio of the coating film formed by diluting the coating material by 300% with a dilution solvent (e.g., water) is the hiding ratio (z), (II) Concealment rate (y) ≧ 60% The covering material preferably has a hiding ratio (y) of 60% or more (more preferably 70% or more, and even more preferably 80% or more and 98% or less). (III) Concealment rate (z) < 70% The covering material preferably has a hiding ratio (z) of less than 70% (more preferably less than 60%, and even more preferably 5% or more and less than 50%). If the hiding rate of the coating material is within this range, the color change due to the thickness of the coating film formed by the coating material (a) is easily visible, and the effect of the present invention can be further enhanced.

[0028] Furthermore, the coating material preferably satisfies one or more of the following conditions (IV) to (VI), and particularly preferably satisfies the following condition (VI). (IV) [Concealment rate (x) - Concealment rate (z)] ≧ 30% The covering material preferably has a difference between the hiding rate (x) and the hiding rate (z) of 30% or more (more preferably 40% or more, and further preferably 50% or more and 90% or less). (V) [Concealment rate (x) - Concealment rate (y)] ≦ 25% The covering material preferably has a difference between the hiding ratio (y) and the hiding ratio (y) of 25% or less (more preferably 20% or less, and further preferably 0.5% to 18%). (VI) [Concealment rate (y) - Concealment rate (z)] ≧ 30% The covering material preferably has a difference between the hiding rate (y) and the hiding rate (z) of 30% or more (more preferably 40% or more, and further preferably 45% or more and 90% or less). If the hiding rate of the coating material is within this range, the change in hiding power (transparency) due to the thickness and concentration of the coating formed by the coating material is more easily visible, and the contrast between the high hiding power and low hiding power becomes clearer. This makes it possible to impart a more natural linear pattern in combination with the color of the coated surface. Furthermore, it is possible to form a linear pattern having a boundary such as a butt joint.

[0029] The hiding rate is calculated by the following formula after measuring the visual reflectance of the test piece obtained by applying the coating material to a hiding rate test paper using a film applicator (gap 75 μm) and drying it for 24 hours under standard conditions. <expression> Concealment rate (%) = (visual reflectance of paint film on black background) / (visual reflectance of paint film on white background) x 100

[0030] <Pattern-applying tool> The patterning tool used in the present invention forms a linear pattern. A specific method of use is to bring the patterning tool into contact with the coating material applied to the surface to be coated while it is still wet, and drag the coating material along as it moves along. This causes the contact surface of the patterning tool to partially absorb or scrape off (remove) the coating material, thereby creating a linear pattern.

[0031] The patterning tool is not particularly limited as long as it can impart a linear pattern, and examples thereof include brushes, combs, scrubbing pads, sponges, various types of fabric (e.g., cotton, nylon, polyester, felt, mesh, rags, work gloves, etc.), and papers, which can be used in combination. In the present invention, sponges, fabrics, and other tools capable of absorbing and scraping off the covering material (a) are particularly preferred. Among these, it is preferable to use a patterning tool having a specific sponge material as shown in FIG. 1.

[0032] FIG. 1 shows a perspective view of a pattern applicator suitable for the present invention. FIG. 2 shows a cross-sectional view of the pattern applicator of FIG. 1 [FIG. 1: X-X']. The patterning tool of the present invention is preferably a mixture of at least two or more sponge materials [Fig. 2: a1-a5] with different hardness and / or density. By using such a specific sponge material, during the dragging process, the coating material is absorbed and part of the absorbed coating material is applied, and the amount of coating material absorbed (scraped off) is unlikely to be uniform (random), resulting in changes in the thickness of the formed coating and the width of the scraped off part. This makes it possible to easily and effectively impart a linear pattern with natural line spacing, color shading, etc.

[0033] In addition, since the patterning tool of the present invention randomly mixes at least two or more sponge materials having different hardness and / or density, even when locally repairing (touching up) an area where patterning is insufficient in the process of forming a linear pattern, the linear pattern at the repaired area can be made to blend in with the previously formed linear pattern without any sense of incongruity, and a linear pattern with excellent aesthetics can be formed. Furthermore, even if the surface to be coated has irregularities, the coating material can be dragged along the irregularities of the surface to be coated, and a linear pattern with excellent aesthetics can be formed.

[0034] The sponge material is not particularly limited as long as it can absorb (contain) the covering material, but examples include urethane-based, melamine-based, acrylic-based, nylon-based, etc., and at least two or more types (preferably three or more types) of these materials differing in either or both hardness and density are used in combination. In the present invention, it is preferable to use a combination of two or more types (preferably three or more types) of sponge materials (preferably including a urethane-based sponge material).

[0035] The hardness of each sponge material is preferably 10 to 3000 N (more preferably 20 to 2000 N, and even more preferably 30 to 1500 N), and the density is preferably 1 to 300 kg / m 3 (More preferably 3 to 200 kg / m 3 , and more preferably 5 to 150 kg / m 3By using a patterning tool that combines such sponge materials, the degree of deformation and absorption of the coating material will differ for each sponge material, resulting in changes in the thickness of the formed coating and the width of the scraped-off area, making it possible to form a natural linear pattern with a variety of line spacing and color shading. The term "hardness" as used herein refers to the hardness (C method) value measured from the force applied when a test piece is compressed to 40% of its thickness in accordance with JIS K6400-2, and "density" refers to the apparent density value calculated from the mass and dimensions of the test piece in accordance with JIS K7222.

[0036] The individual external shapes of the sponge materials are not particularly limited, but are preferably amorphous and three-dimensional. The individual sizes are preferably 1 to 30 mm (more preferably 2 to 20 mm). In the present invention, it is preferable that a plurality of liquid-absorbing materials of different sizes are mixed. In such a case, sponge materials of different sizes as well as hardness and / or density are mixed randomly, so that the effect of the present invention can be further enhanced. The "size" referred to here is the longest axis of the external shape, and is measured, for example, by sieving through a sieve having a square on one side of a specified dimension.

[0037] The pattern imparting tool of the present invention is preferably one in which the sponge material is formed (fixed) into a block shape. Specifically, the pattern imparting tool of the present invention may have at least one type of sponge material fixed in the thickness direction, but a form in which two or more types are fixed so as to be stacked is more preferable. Furthermore, as shown in Fig. 2, a form in which a plurality of sponge materials are fixed so as to be stacked so as to be randomly mixed in the thickness direction is even more preferable. By having such a pattern imparting tool, the effects of the present invention can be enhanced.

[0038] The general shape of the block-shaped pattern imparting tool is not particularly limited, and examples of block shapes include a rectangular parallelepiped, cubic, triangular prism, square prism, polygonal prism, cylinder, semicylinder, and semisphere. In this case, the general shape of the surface of the pattern imparting tool that comes into contact with the covering material (hereinafter also referred to as the "contact surface" [Figs. 1 and 2: As]) is, for example, a triangle, a quadrangle (rectangle or square), a polygon, a circle, a semicircle, and the like. The area of ​​the contact surface of the pattern imparting tool may be appropriately set as desired, but is preferably 3 to 500 cm. 2 (More preferably, 5 to 400 cm 2 , 10~300cm 2 ) In addition, the height (thickness of the pattern-applying tool) varies depending on the size of each sponge material, but is preferably 50 mm or less (more preferably 1 to 30 mm).

[0039] The surface shape of the contact surface is not particularly limited, and may be smooth or uneven, but in the present invention, it is preferable that the surface has an uneven shape [Fig. 2, Fig. 3 (iii), (iv), etc.]. This allows a more natural linear pattern to be imparted with line intervals and color shading, and the effect of the present invention can be enhanced. The contact surface of the pattern imparting tool may have unevenness partially or entirely. In the present invention, it is preferable that the entire contact surface has an uneven shape. Furthermore, it is preferable that the edge portion (on the ridge line) of the contact surface of the pattern imparting tool is removed [Fig. 3 (i) to (iv), etc.], and furthermore, it is preferable that the contact surface has unevenness [Fig. 3 (iii), (iv), etc.]. The size of the uneven shape of the surface and edge portion of the contact surface is not particularly limited, but the height difference between the concave and convex portions is preferably 0.3 to 15 mm (more preferably 0.5 to 10 mm, and even more preferably 0.8 to 5 mm). In addition, when such a range is satisfied, a natural linear pattern can be easily and efficiently imparted.

[0040] The method for molding the patterning tool is not particularly limited, but for example, (1) A method of molding by filling a mold with at least two types of sponge materials, (2) A method of molding at least two or more types of sponge materials into a block having a desired general shape; etc. In the above (1) and (2), when the sponge material is molded, it is preferable to perform compression molding, which can enhance the effects of the present invention.

[0041] When providing an uneven shape to the contact surface or edge of the patterning tool, for example, In the above (1), a mold to which a desired shape has been transferred may be used. In the above (2), the uneven shape may be formed by a removal process such as cutting, or by a random removal process such as tearing or scraping. In the present invention, it is particularly preferable to form the uneven shape by a random removal process. This allows a more natural linear pattern to be efficiently imparted. Furthermore, even in the case of locally repairing (touching up), the linear pattern at the repaired area and the previously formed linear pattern can be blended together without any sense of incongruity, and a linear pattern with excellent aesthetics can be formed.

[0042] The patterning tool of the present invention may also have a support part on the surface opposite to the contact surface [Figs. 1 and 2: As]. For example, as shown in Fig. 4, a support part [Fig. 4: B] may be attached to the surface opposite to the contact surface [Fig. 4: As]. Any support part that can support the patterning tool may be used as long as the contact surface of the patterning tool has sufficient rigidity to bear a load when it comes into contact with the surface to be coated. The support part may be made of, for example, metal, synthetic resin (plastic), wood, ceramic, etc.

[0043] The support portion can be attached in the following manner, for example: As shown in FIG. 4, the pattern applicator is attached so as to cover the entire surface opposite to the contact surface [FIG. 4: As]. As shown in FIG. 5, the pattern applicator may extend from the end of the support part, and the surface of the pattern applicator may be smaller than the surface opposite the contact surface [FIG. 4: As] of the support part. In the present invention, as shown in FIG. 5, it is preferable to provide the support part so that the pattern applicator extends from the end of the support part, and the length from the end of the support part to the end of the pattern applicator [FIG. 5: L1, L2] [FIG. 6: L1-L4] is preferably 0.1 mm to 30 mm (more preferably 1 mm to 20 mm, and even more preferably 3 mm to 10 mm). In such a case, the load at the end of the pattern applicator becomes slightly smaller when it comes into contact with the surface to be coated. As a result, in the process of forming a linear pattern by dragging the coating material, the coating material of the previously formed linear pattern part is not excessively absorbed (scraped off), and a linear pattern with a natural boundary can be formed. In addition, even if the surface to be coated is difficult to work on, such as an inside corner or an outside corner, a linear pattern can be easily formed. The length from the end of the support part to the end of the pattern imparting tool does not have to be constant as long as it is within the above range, and for example, L1 to L4 shown in Fig. 6 may be the same or different lengths. Also, while Fig. 6 shows a preferred example in which the pattern imparting tool extends in four directions from the end of the support part, the pattern imparting tool may extend from at least one of the ends of the support part.

[0044] Furthermore, the thickness of the support is not particularly limited, but is preferably 0.1 mm to 10 cm (more preferably 0.5 mm to 5 cm). In this case, it is possible to suppress deviation of the pattern due to uneven application pressure, and to efficiently form a pattern with excellent aesthetics.

[0045] A handle portion [Fig. 4: C] [Fig. 5: C] can also be connected to the support portion. The shape and material of the handle portion are not particularly limited as long as the above-mentioned effects can be obtained. For example, the handle portion is U-shaped in Fig. 4 and rod-shaped in Fig. 5, but it can also be V-shaped, semicircular, etc. Furthermore, the handle portion may be connected to the support portion in advance or detachable, and the angle, etc., may be changeable. The material that can be used may be, for example, metal, synthetic resin (plastic), wood, ceramic, etc.

[0046] <How to form decorative coating> The method for forming a decorative coating of the present invention comprises the steps of: Divide the surface to be coated into at least two areas (area S1, area S2), A step S1 of applying a coating material to the region S1 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; A step S2 of applying a coating material to the region S2 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; Including, The region S1 and the region S2 are characterized by having an overlapping portion S12. The method for forming a decorative coating according to the present invention is intended to form a design (a butt pattern) like that of a wooden member by application by butt jointing.

[0047] In the present invention, first, the surface to be coated is divided into at least two regions (region S1, region S2, etc.) so as to form a desired butt pattern. At this time, the regions S1 and S2 are divided so as to have an overlapping portion. Next, the above-mentioned step S1 and step S2 are carried out in order to form a linear pattern. In this case, the linear pattern imparted in step S1 and the linear pattern imparted in step S2 may have the same pattern or different patterns (e.g., the number of lines, spacing, thickness, color, direction, etc.) The linear pattern pattern can be subtly changed by the composition, viscosity, amount applied, and type of pattern imparting tool of the coating material, as well as the dragging method, etc. (In particular, by using a pattern imparting tool that contains a mixture of at least two or more sponge materials with different hardness and / or density as shown in Figures 1, 2, 4 to 6, etc., a natural linear pattern with subtly different line spacing, color shading, etc. can be formed.)

[0048] By forming linear patterns in regions S1 and S2 in this manner, since regions S1 and S2 have an overlapping portion S12, a butting pattern can be formed in the overlapping portion S12 and the linear patterns in regions S1 and S2 can be seamlessly connected. The number of regions into which the surface to be coated is divided can be set to two or more (multiple) (region S1, region S2, region S3, region S4, ...) depending on the desired pattern. In the present invention, "divide" refers to dividing the surface to be coated into sections so as to form the desired pattern.

[0049] First, as an example of the method for forming a decorative coating of the present invention, a case in which the surface to be coated is divided into two regions as shown in FIG. 7 will be described in detail.

[0050] Specifically, as shown in FIG. 7, the surface to be coated [FIG. 7(a): S] is divided into two regions (region S1 [FIG. 7(b): S1] and region S2 [FIG. 7(b): S2]). At this time, region S1 and region S2 are set to have an overlapping portion S12 [FIG. 7(b): S12]. This overlapping portion can form a buttock pattern. The width of the overlapping portion is not particularly limited, but is preferably 0.1 to 10 mm (more preferably 0.2 to 8 mm, and even more preferably 0.3 to 5 mm). In this case, a natural buttock pattern can be formed. The surface to be coated may be divided into two or more areas so as to form the desired butt pattern. If necessary, marking may be performed or tape, masking material, etc. may be used.

[0051] Next, in the present invention, in the above-mentioned S1 step, a coating material (s1) is applied to the above-mentioned region S1, and the coating material (s1) is dragged with a pattern applying tool while it is still wet to form a linear pattern [Figure 7(c)]. At this time, the coating material (s1) should not be applied to the area S2 except for the overlapping portion S12. Specifically, it is preferable to mask the entire area S2 except for the overlapping portion S12, or to mask the area S2 near the boundary of the overlapping portion S12 [Fig. 7(c): dotted line (large)] with tape or the like before painting.

[0052] In the present invention, "while the coating material is not dried" refers to the coating material being in a fluid state, specifically, the coating material being dried before it becomes dry to the touch. On the other hand, "drying (curing)" refers to the coating material being in a non-fluid state (after it is dry to the touch).

[0053] In the above-mentioned step S1, at least one type of coating material (s1) is applied to the above-mentioned region S1. Depending on the desired design, two or more types of coating materials (e.g., coating materials with different colors and / or glosses (lusters)) may be applied separately or in layers.

[0054] Examples of application tools for applying the coating material (s1) include sprays, trowels, rollers, brushes (including paintbrushes), pressing tools (including tapping tools), etc. Among these, examples of rollers include fibrous rollers, porous (sponge) rollers, etc.

[0055] In the above-mentioned step S1, the amount of coating material (s1) applied to the surface to be coated is preferably 10 g / m 2 More than 500g / m 2 Less than 20g / m 2 More than 300g / m 2 In such a case, a linear pattern can be efficiently imparted in the next step. Next, the applied covering material (s1) is dragged with the pattern applying tool while it is still wet. Although it depends on the type of covering material (s1), it is preferable that the interval between the application of the covering material and the dragging of the covering material is within 20 minutes (more preferably within 15 minutes, and even more preferably immediately after the application of the covering material (s1) (within 10 minutes)).

[0056] Moreover, dragging the covering material (s1) with the pattern-applying tool means that the pattern-applying tool is brought into contact with the covering material (s1) and moved in a dragging manner to drag the covering material (s1). In this case, it is preferable to drag the pattern-applying tool by lightly pressing it against the covering material (s1). This allows the contact surface of the pattern-applying tool to partially absorb (scrape off) the covering material (s1), forming a natural linear pattern. The direction in which the covering material (s1) is dragged can be set according to the desired design. For example, [Figure 7(c)] is an example of a linear pattern formed by dragging the covering material (s1) in the vertical direction. The remaining amount of the coating material (s1) after dragging is preferably 5 g / m 2 More than 200g / m 2 Less than 10g / m 2 More than 100g / m 2 In this case, a linear pattern with excellent aesthetic appearance can be obtained.

[0057] In the method for forming a decorative coating of the present invention, the above-mentioned step S1 can be repeated to form a linear pattern for the purpose of improving the design. Examples of the method for forming such a decorative coating include: (Step S1-1) A step of applying a coating material (s1) to a surface to be coated, and dragging the coating material (s1) with the pattern-applying tool while the coating material (s1) is still wet; (Step S1-2) A step of applying a coating material (s1') after the coating material (s1) has dried (cured) and dragging the coating material (s1') with the pattern-applying tool while the coating material (s1') is still wet; It is preferred that the compound contains

[0058] In the above-mentioned S1-2 step, the coating material (s1') is applied. In this case, it is preferable that the coating material (s1) and the coating material (s1') are coating materials having different colors and / or different glosses (lusters). This can further improve the design and aesthetics.

[0059] In the present invention, it is preferable to carry out the above-mentioned step S2 as the next step after the coating material (for example, the coating material (s1), the coating material (s1')) in the above-mentioned step S1 has been dried (cured). In the present invention, in the step S2, a coating material (s2) is applied to the region S2, and a linear pattern is formed by dragging the coating material (s2) with a pattern applying tool while the coating material (s2) is still wet [Figure 7 (d1) or (d2)]. At this time, the coating material (s2) should not be applied to the area S1 except for the overlapping portion S12. Specifically, it is preferable to mask the entire area S1 except for the overlapping portion S12, or to mask the area S1 near the boundary of the overlapping portion S12 [Fig. 7(d1) or (d2): dotted line (center)] with tape or the like before painting.

[0060] By applying the coating material in step S1 and step S2 and dragging the coating material, a natural butt pattern can be formed in which the overlapping portion S12 blends in with the surrounding linear pattern [Figure 7 (f1) or (f2)]. In particular, when a pattern-applying tool having a specific sponge material as shown in FIG. 1 is used as the pattern-applying tool in the above steps S1 and S2, a more natural butt pattern can be formed, and a design similar to that of an actual wooden member can be created.

[0061] The step S2 is to provide a linear pattern in the same manner as the step S1. In the step S2, at least one type of coating material (s2) is applied to the region S2. The coating material (s2) is preferably applied after the coating material (s1) has dried. The coating method, coating amount, and method of forming a linear pattern of the coating material (s2) are the same as those of the coating material (s1) in the above-mentioned S1 step. In addition, the coating material (s2) may be the same coating material as the coating material (s1) used in the above S1 step, or may be a coating material with a different color and / or luster (luster). If the coating material (s2) is the same coating material as the coating material (s1), a unified design can be obtained. On the other hand, if the coating material (s2) is a coating material with a different color and / or luster (luster) from the coating material (s1), a design with added design can be obtained. Furthermore, in the above step S2, the direction in which the covering material (s2) is dragged by the patterning tool can be set according to the desired design. For example, if the direction is the same as the direction in which the covering material (s1) was dragged in the above step S1 (e.g., vertical direction [Fig. 7(d1)]), a unified design can be obtained. On the other hand, if the direction is different from the direction in which the covering material (s1) was dragged in the above step S1 (e.g., horizontal direction [Fig. 7(d2)], diagonal direction, etc.), an accent design can be added.

[0062] Furthermore, for the purpose of improving the design, the above-mentioned step S2 can be repeated to form a linear pattern. Examples of methods for forming such decorative coatings include: (Step S2-1) A step of applying a coating material (s2) to a surface to be coated, and dragging the coating material (s2) with the pattern-applying tool while the coating material (s2) is still wet; (Step S2-2) A step of applying a coating material (s2') after the coating material (s2) has dried, and dragging the coating material (s2') with the pattern-applying tool while the coating material (s2') is still wet; It is preferred that the compound contains

[0063] In the above S2-2 step, a coating material (s2') is applied. In this case, it is preferable that the coating material (s2) and the coating material (s2') are coating materials with different colors and / or different glosses (lusters). This can further improve the design and aesthetics.

[0064] In the method of forming a decorative coating of the present invention, it is sufficient to divide the surface to be coated into at least two regions, and the number of regions to be divided can be set to a number (N) depending on the desired pattern (N≧2). The shape of the divided regions can be set arbitrarily, and for example, the shapes of the divided regions can be triangular, rectangular, polygonal, curved, circular, etc., and these can be set in combination. Figure 8 shows an example of a coating surface divided into three regions.

[0065] In this case, the method for forming the decorative coating of the present invention is as follows: The coating surface is divided into three areas (area S1, area S2, and area S3), A step S1 of applying a coating material to the region S1 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; A step S2 of applying a coating material to the region S2 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; a step S3 of applying a coating material to the region S3 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; Including, The region S1, the region S2, and the region 3 are characterized in that adjacent regions have overlapping portions. It is preferable that the above steps S2 and S3 are carried out after the coating material applied in the previous step has dried (cured).

[0066] When the coating surface is divided into three regions, for example, there are two configurations: region S1 and region S2, and region S2 and region S3 are adjacent [Figure 8(b-1)], and region S1 and region S2, region S1 and region S3, and region S2 and region S3 are adjacent [Figure 8(b-2)]. In the case of FIG. 8(b-1), the regions S1 and S2, and the regions S2 and S3 respectively define overlapping portions S12 and S23 [FIGS. 9 and 10(b-1): S12 and S23]. In the case of FIG. 8(b-2), the regions S1 and S2, the regions S1 and S3, and the regions S2 and S3 respectively define overlapping portions S12, S13, and S23 [FIG. 9, FIG. 11(b-1): S12, S13, and S23]. The width of the overlapping portion is not particularly limited, but is preferably 0.1 to 10 mm (more preferably 0.2 to 8 mm, and even more preferably 0.3 to 5 mm). In this case, a natural butt pattern can be formed. The division method is as described above.

[0067] In the above steps S2 and S3, the coating material is preferably applied after the coating material applied to the overlapping area in the previous step has dried. The application method, application amount, and method of imparting a linear pattern to the coating materials (s1) to (s3) used in the above-mentioned steps S1, S2, and S3 are the same as those in the case where the coating surface is divided into two regions described above.

[0068] FIG. 10 shows an example of a method for forming a decorative coating when the surface to be coated is divided into three regions. As shown above, the surface to be painted is divided into three areas, and the overlapping areas of each area are set. Next, in the above-mentioned S1 step, a coating material (s1) is applied to the above-mentioned region S1, and a linear pattern is formed by dragging the coating material (s1) with a pattern applying tool while the coating material (s1) is still wet [Figure 10(c)]. At this time, the coating material (s1) should not be applied to the area S2 and the area S3 except for the overlapping area S12. Specifically, it is preferable to mask the entire area S2 and the area S3 except for the overlapping area S12, or to mask the area S2 near the boundary of the overlapping area S12 [Fig. 10(c): dotted line (large)] with tape or the like before painting.

[0069] Next, in the step S2, a coating material (s2) is applied to the region S2, and the coating material (s2) is dragged with a patterning tool while it is still wet to form a linear pattern [Fig. 10(d)]. It is preferable that the coating material (s2) is applied after the coating material (s1) is dried. At this time, the coating material (s2) should not be applied to the area S1 and the area S3 except for the overlapping areas S12 and S23. Specifically, it is preferable to mask the entire area S1 and the area S3 except for the overlapping areas S12 and S23, or to mask the area S1 and the area S3 near the boundary between the overlapping areas S12 and S23 [dotted area (center) in Fig. 10(d)] with tape or the like before painting.

[0070] Furthermore, in the step S3, a coating material (s3) is applied to the region S3, and the coating material (s3) is dragged with a pattern applying tool while it is still wet to form a linear pattern [Fig. 10(e)]. Note that the coating material (s3) is preferably applied after the coating materials (s1) and (s2) are dried. At this time, the coating material (s3) should not be applied to the regions S1 and S2 except for the overlapping portion S23. Specifically, it is preferable to mask the entire regions S1 and S2 except for the overlapping portion S23, or to mask the region S2 near the boundary of the overlapping portion S23 [Fig. 10(e): dotted line (small)] with tape or the like before painting.

[0071] By applying the coating material in steps S1, S2 and S3 and dragging the coating material, a natural butt pattern can be formed in which the overlapping portions S12, S23 blend in with the surrounding linear pattern [Figure 10(f)].

[0072] 10 shows an example in which the coating material is applied in the order of region S1 → region S2 → region S3, but the order is not limited thereto, and it may be, for example, region S1 → region S3 → region S2, region S2 → region S1 → region S3, region S2 → region S3 → region S1, etc. Furthermore, if the next process does not have an overlapping portion (for example, region S1 → region S3, region S3 → region S1, etc.), the next process may be performed before the coating material of the previous process dries.

[0073] FIG. 11 shows another example of a method for forming a decorative coating when the surface to be coated is divided into three regions. As shown above, the surface to be painted is divided into three areas, and the overlapping areas of each area are set. Next, in the above-mentioned S1 step, a coating material (s1) is applied to the above-mentioned region S1, and a linear pattern is formed by dragging the coating material (s1) with a pattern applying tool while the coating material (s1) is still wet [Figure 11(c)]. At this time, the coating material (s1) should not be applied to the regions S2 and S3 except for the overlapping portions S12 and S13. Specifically, it is preferable to mask the entire regions S2 and S3 except for the overlapping portions S12 and S13, or to mask the regions S2 and S3 near the boundary between the overlapping portions S12 and S13 [Fig. 11(c): dotted line (large)] with tape or the like before painting.

[0074] Next, in the step S2, a coating material (s2) is applied to the region S2, and the coating material (s2) is dragged with a patterning tool while it is still wet to form a linear pattern [Fig. 8(d)]. It is preferable that the coating material (s2) is applied after the coating material (s1) is dried. At this time, the coating material should not be applied to the regions S1 and S3 except for the overlapping portions S12 and S23. Specifically, it is preferable to mask the entire regions S1 and S3 except for the overlapping portions S12 and S23, or to mask the regions S1 and S3 near the boundary between the overlapping portions S12 and S23 [dotted portion (center) in Fig. 11(d)] with tape or the like before painting.

[0075] Furthermore, in the step S3, a coating material (s3) is applied to the region S3, and the coating material (s3) is dragged with a pattern applying tool while it is still wet to form a linear pattern [Fig. 11(e)]. It is preferable that the coating material (s3) is applied after the coating materials (s1) and (s2) are dried. At this time, the coating material should not be applied to the regions S1 and S2 except for the overlapping portions S13 and S23. Specifically, it is preferable to mask the entire regions S1 and S2 except for the overlapping portions S13 and S23, or to mask the regions S1 and S2 near the boundary between the overlapping portions S13 and S23 [Fig. 11(e): dotted line (small)] with tape or the like before painting.

[0076] By applying the coating material in steps S1, S2 and S3 and dragging the coating material, a natural butt pattern can be formed in which the overlapping portions S12, S13 and S23 blend in with the surrounding linear pattern [Figure 11(f)].

[0077] Although FIG. 11 shows an example in which the coating material is applied in the order of region S1 → region S2 → region S3, the order is not limited thereto, and it may be, for example, region S1 → region S3 → region S2, region S2 → region S1 → region S3, etc.

[0078] In the method of forming a decorative coating of the present invention, even when the surface to be coated is divided into four or more regions, a decorative coating can be formed in the same manner as the method of forming a decorative coating when the surface to be coated is divided into three regions. Specifically, the decorative coating can be formed by dividing the surface to be coated into N regions (region S1, region S2, region S3, ..., region SN), setting overlapping portions between adjacent regions in the above regions S1 to SN, applying a coating material to each region, forming a linear pattern by dragging the coating material with a pattern applying tool while the coating material is still wet, and then performing steps S1 to SN in which the coating material is dried.

[0079] Furthermore, in the method for forming a decorative coating of the present invention, a colored coating can be formed in advance on the surface to be coated for the purpose of improving the design, so long as the effect of the present invention is not adversely affected. Examples of the method for forming such a decorative coating include: A process of applying at least one type of primer to the surface to be coated and drying it to form a colored coating (P) (P process); Next, the surface on which the colored coating (P) is formed is divided into at least two regions (region S1, region S2), a step S1 of applying a coating material to the region S1, dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern, and then drying the coating material; The method includes a step S2 of applying a coating material to the region S2, dragging the coating material with a pattern-applying tool while the coating material is still wet to form a linear pattern, and then drying the coating material.

[0080] The above undercoat material is preferably a colored paint containing a binder and a pigment (color pigment, extender pigment). The binder and pigment of the undercoat material can be one or more selected from those similar to those of the above-mentioned coating material. In this case, the undercoat material and the coating material are preferably coating materials with different colors and / or gloss (luster). This can further improve the design and aesthetics. In addition, the colored coating (P) may be formed by applying two or more types of coating materials (p1, p2, ...) (e.g. coating materials with different colors and / or different glosses (lusters)) separately or in layers, or by forming a textured pattern, depending on the desired design.

[0081] In the present invention, a different color is preferably one in which the color difference (ΔE) of the covering material is 3 or more (more preferably 5 or more). There is no particular upper limit to the color difference (ΔE), but it is preferably 90 or less and can be set according to the desired design. Moreover, the difference in gloss (luster) preferably means that the difference in gloss between the coating materials is 2 or more (more preferably 3 or more, and even more preferably 5 or more). There is no particular upper limit to the difference in gloss, but it is preferably 90 or less (more preferably 60 or less), and can be set according to the desired design.

[0082] The color difference (ΔE) in the present invention is a value measured using a colorimeter. Specifically, each coating material (referred to as the "first coating material" and the "second coating material") is applied to a standard white paper using a film applicator with a gap of 250 μm, and the coating surface is placed horizontally and dried for 48 hours under standard conditions (temperature 23°C, relative humidity 50%; the same applies below). The L * Value, a * Value, b * It can be calculated using the following formula from the value (average value of three or more measurement points). <Formula>△E={(L * 1-L * 2) 2 +(a * 1-a * 2) 2 +(b * 1-b * 2) 2}0.5 (In the formula, L * 1, a * 1, b * 1 is the L of the first coating material * , a * , b * L * 2, a * 2, b * 2 is the L of the second coating material * , a * , b * )

[0083] The "glossiness" is a value measured according to JIS K5600-4-7 "Specular glossiness." Specifically, it is a value obtained by applying a coating material to one side of a glass plate using a film applicator with a gap of 150 μm, placing the coated surface horizontally, and drying for 48 hours under standard conditions, and then measuring the specular glossiness (measurement angle 60 degrees).

[0084] The solid content of the undercoat material of the present invention is preferably 30 to 95% by mass (more preferably 35 to 90% by mass). The content of the coloring pigment is 2 to 80% by mass (more preferably 3 to 70% by mass, even more preferably 5 to 60% by mass) based on the total solid content in the undercoat material. The content of the extender pigment is preferably 0 to 70% by mass based on the total solid content in the undercoat material. Furthermore, it is preferable that the undercoat material has a concealing rate of 70% or more (more preferably 80% or more, and even more preferably 90% or more and 100% or less). In such a case, the effect of the present invention can be stably obtained.

[0085] Examples of application tools for applying the undercoat material include sprays, trowels, rollers, brushes (including brushes, etc.), pressing tools (including tapping tools, etc.). Among these, examples of rollers include fibrous rollers and porous (sponge) rollers,

[0086] The amount of the undercoat applied to the surface to be coated is preferably 10 g / m 2 More than 500g / m2 Less than 20g / m 2 More than 300g / m 2 (see below).

[0087] Furthermore, in the method for forming a decorative coating of the present invention, a clear layer (protective layer) or the like can be formed on the outermost surface after all steps of forming a linear pattern (for example, after step S2 or step S3) for the purpose of surface protection, improving weather resistance, stain resistance, etc., so long as the effects of the present invention are not impaired. Furthermore, in the present invention, each step is preferably carried out at room temperature (5 to 40°C). EXAMPLES

[0088] The following examples will clarify the features of the present invention, but the present invention is not limited to these examples.

[0089] The following coating materials were prepared: ·Covering material 1 A light beige coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 92.4, a * Value: 1.1, b * Value: 6.9, Glossiness: 2.0, Heating residue (solid content): 55% by mass, Concealment ratio (x): 97%, Concealment ratio (y): 75%, Concealment ratio (z): 60%)

[0090] ·Covering material 2 A light brown coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 53.8, a * Value: 7.2, b * Value: 17.3, gloss: 2.0, heat residue (solid content): 55% by mass, hiding ratio (x): 98%, hiding ratio (y): 94%, hiding ratio (z): 45%)

[0091] ·Covering material 3 A brown coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 35.5, a * Value: 4.2, b * Value: 9.4, Glossiness: 2.0, Heating residue (solid content): 55% by mass, Concealment ratio (x): 98%, Concealment ratio (y): 83%, Concealment ratio (z): 32%)

[0092] ·Covering material 4 A black coating material (L) whose main components are acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigments). * Value: 24.5, a * Value: 0.5, b * Value: 0.8, Glossiness: 2.0, Heating residue (solid content): 55% by mass, Concealment ratio (x): 99%, Concealment ratio (y): 94%, Concealment ratio (z): 46%)

[0093] ·Covering material 5 A reddish-brown coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 36.7, a * Value: 13.1, b * Value: 9.5, Glossiness: 2.0, Heating residue (solid content): 55% by mass, Concealment ratio (x): 98%, Concealment ratio (y): 83%, Concealment ratio (z): 32%)

[0094] ·Covering material 6 A light brown coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 65, a * Value: 7.3, b * Value: 17.3, Glossiness: 2.0, Heating residue (solid content): 55% by mass, Concealment ratio (x): 99%, Concealment ratio (y): 93%, Concealment ratio (z): 50%)

[0095] ·Covering material 7 A light brown coating material (L) made mainly of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 70.6, a * Value: 5.6, b * Value: 17.4, gloss: 2.0, heat residue (solid content): 55% by mass, hiding ratio (x): 99%, hiding ratio (y): 98%, hiding ratio (z): 65%)

[0096] Table 1 shows the hiding ratios (x), (y), (z) and conditions (I) to (VI) of the coating films formed for Coating Materials 1 to 7. [Table 1]

[0097] ·Pattern Applier 1 Mesh cloth containing cotton (rolled up work gloves, etc.) Pattern applicator 2 The patterning tool is made of sponge material as shown in FIG. 4. The sponge material a1 to a5 (each size: 3 to 20 mm) is mixed in the shape of a rectangular parallelepiped (length 10 cm × width 15 cm × thickness 2.5 cm, contact area 150 cm). 2 The contact surface and edges have an uneven shape (height difference between the unevenness is 1 to 5 mm). The support part (length 10 cm x width 15 cm x thickness 5 mm) and the handle part are made of plastic. Sponge material A1: Hardness 45-60N, density 50-100kg / m 3 ·Sponge material A2: hardness 75~110N, density 15~30kg / m 3 Sponge material A3: Hardness 110~140N, density 15~50kg / m 3 Sponge material A4: Hardness 110~300N, density 30~85kg / m 3 Sponge material A5: Hardness 1000~1500N, density 10~20kg / m 3 Pattern applicator 3 The patterning tool for sponge materials as shown in FIG. 5 is a rectangular parallelepiped shape (length 10 cm × width 10 cm × thickness 2.5 cm, contact area 150 cm) in which the above sponge materials a1 to a5 (individual size: 3 to 20 mm) are mixed. 2 ), and the contact surface and edges have an uneven shape (height difference between the unevenness is 1 to 5 mm). The support part (length 9.5 cm x width 9.5 cm x thickness 5 mm) and the handle part are made of plastic, and the length from the end of the support part to the end of the pattern applicator [Fig. 6: L1 to L4] is 5 mm.

[0098] Example 1 Coating material 1 is applied to the substrate (slate board) at a rate of 150 g / m 2 The entire surface was roller-coated (using a fiber roller) and dried for 2 hours until it was dry to the touch or better, forming a pale beige coating (P process). As shown in Figure 7, the substrate [Figure 7(a): S] was divided into two regions (region S1 [Figure 7(b): S1], region S2 [Figure 7(b): S2]), and masking tape was applied to region S2 near the boundary of overlapping portion S12 [Figure 7(c): dotted line (large)]. The width of overlapping portion S12 was 1 mm. Next, the coating material 2 was applied to the above-mentioned area S1 (on the light beige coating) in an amount of 120 g / m 2 Immediately after (within 10 minutes), the coating material 2 is dragged in a straight line in the vertical direction with the pattern applying tool 1 until the remaining amount of the coating material 2 is 50 g / m 2 The coating material 2 was scraped off until it became a linear pattern (Fig. 7(c)). After that, it was dried for 24 hours to form a decorative coating (S1 process). Next, the masking tape was removed, and instead, masking tape was applied to the region S1 near the boundary of the overlapping portion S12 [dotted line portion (center) in FIG. 7(c)]. Next, the coating material 2 was applied to the above-mentioned region S2 (on the light beige coating) in an amount of 120 g / m 2 Immediately after (within 10 minutes), the coating material 2 is dragged in a straight line in the vertical direction with the pattern applying tool 1 until the remaining amount of the coating material 2 is 50 g / m 2A linear pattern was formed by scraping off the coating material 2 until the coating material 2 was removed ([Figure 7(d1)]). After that, the coating was dried for 24 hours to form a decorative coating (S2 process), and the masking tape was removed. The color difference between Coating Material 1 and Coating Material 2 was ΔE:40. By the above method, the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 2, and a highly aesthetic decorative coating surface with a wood grain (straight grain) pattern is obtained, which has a linear pattern of multiple colors (including many intermediate colors) with natural color shades from light beige to light brown, and has natural boundaries such as butt joints ([Figure 7(f1)]). All painting and drying was carried out under standard conditions (temperature 23°C, relative humidity 50%).

[0099] Example 2 A decorative coating was formed in the same manner as in Example 1, except that pattern imparting tool 2 was used instead of pattern imparting tool 1 in steps S1 and S2 of Example 1. By the above method, a decorative coating surface with high aesthetics was obtained, in which the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 2, the line spacing and the shading of the line boundaries are natural, there is a linear pattern of multiple colors (including many intermediate colors) from light beige to light brown with a contrast between high hiding power and low hiding power, and there is a natural boundary like a butt joint, and a wood grain (straight grain)-like natural appearance was obtained. Also, compared to Example 1 using the pattern imparting tool 1, application was easier, and a decorative coating surface with even more excellent appearance was obtained.

[0100] Example 3 A decorative coating was formed in the same manner as in Example 1, except that pattern imparting tool 3 was used instead of pattern imparting tool 1 in steps S1 and S2 of Example 1. By the above method, a decorative coating surface with high aesthetics was obtained, in which the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 2, the line spacing and the shading of the line boundaries are natural, there is a linear pattern of multiple colors (including many intermediate colors) from light beige to light brown with a contrast between high hiding power and low hiding power, and there is a natural boundary like a butt joint, and a wood grain (straight grain)-like natural appearance was obtained. Also, compared to Example 1 using the pattern imparting tool 1, application was easier, and a decorative coating surface with even more excellent appearance was obtained.

[0101] Example 4 A decorative coating was formed in the same manner as in Example 2, except that Coating material 3 was used instead of Coating material 2 in Example 2. The color difference between Coating material 1 and Coating material 3 was ΔE:57. By the above method, a decorative coating surface with a highly aesthetic appearance was obtained, with a wood grain (straight grain) pattern, in which the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 3, the line spacing and the shading of the line boundaries are natural, and there is a linear pattern in multiple colors (including many intermediate colors) from light beige to brown with a contrast between areas with high hiding power and areas with low hiding power, and there is also a natural boundary like the butt joint.

[0102] Example 5 A decorative coating was formed in the same manner as in Example 2, except that Coating Material 4 was used instead of Coating Material 1 in Example 2, and Coating Material 5 was used instead of Coating Material 2. The color difference between Coating Material 4 and Coating Material 5 was ΔE:20. By the above method, a decorative coating surface with a highly aesthetic appearance was obtained, with a wood grain (straight grain) pattern, in which the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 5, the line spacing and the shading of the line boundaries are natural, and there is a linear pattern of multiple colors (including many intermediate colors) from black to reddish brown with a contrast between areas with high hiding power and areas with low hiding power, and there is also a natural boundary such as the butt joint.

[0103] Example 6 A decorative coating was formed in the same manner as in Example 2, except that Coating Material 6 was used instead of Coating Material 2 in Example 2. The color difference between Coating Material 1 and Coating Material 6 was ΔE:30. By the above method, the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 6, the line spacing and the shading of the line boundaries are natural, and although the contrast between the high and low hiding areas is somewhat inferior compared to Example 2, a highly aesthetic decorative coating surface was obtained that has a linear pattern in multiple colors (including many intermediate colors) from light beige to light brown, and has natural boundaries like the butt joints, with a wood grain (straight grain) look.

[0104] Example 7 A decorative coating was formed in the same manner as in Example 2, except that Coating Material 7 was used instead of Coating Material 2 in Example 2. The color difference between Coating Material 1 and Coating Material 7 was ΔE:25. By the above method, the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by the coating material 7, the line spacing and the shading of the line boundaries are natural, and although the contrast between the high and low hiding areas is somewhat inferior compared to Examples 2 and 6, a highly aesthetic decorative coating surface was obtained that has a linear pattern of multiple colors (including many intermediate colors) from light beige to light brown, and has natural boundaries like the butt joints, with a wood grain (straight grain) look.

[0105] Example 8 Coating material 1 is applied to the substrate (slate board) at a rate of 150 g / m 2 The entire surface was roller-coated (using a fiber roller) and dried for 2 hours until it was dry to the touch or better, forming a pale beige coating (P process). As shown in Figure 11, the substrate [Figure 11(a): S] was divided into three regions (region S1 [Figure 11(b): S1], region S2 [Figure 11(b): S2], and region S3 [Figure 11(b): S3]), and masking tape was applied to regions S2 and S3 near the boundary between overlapping regions S12 and S13 [Figure 11(c): dotted line (large)]. The width of overlapping regions S12, S13, and S23 was 1 mm each. Next, the coating material 2 was applied to the above-mentioned area S1 (on the light beige coating) in an amount of 120 g / m 2 Immediately after (within 10 minutes), the coating material 2 is dragged in a straight line in the vertical direction with the pattern applying tool 2 until the remaining amount of the coating material 2 is 50 g / m 2The coating material 2 was scraped off until it became a linear pattern ([Fig. 11(c): S1]). After that, it was dried for 24 hours to form a decorative coating (S1 process). Next, the masking tape was removed, and instead, masking tape was applied to the regions S1 and S3 near the boundary between the overlapping portions S12 and S23 [dotted line (center) in FIG. 11(d)]. Next, the coating material 2 was applied to the above-mentioned region S2 (on the light beige coating) in an amount of 120 g / m 2 Immediately after (within 10 minutes), the coating material 2 is dragged in a straight line in the vertical direction with the pattern applying tool 1 until the remaining amount of the coating material 2 is 50 g / m 2 A linear pattern was formed by scraping off the coating material 2 until the coating material 2 was removed ([Fig. 11(d): S2]). After that, the coating was dried for 24 hours to form a decorative coating (S2 process), and the masking tape was removed. Next, the masking tape was removed, and instead, masking tape was applied to the regions S1 and S2 near the boundary between the overlapping portions S13 and S23 [Figure 11(e): dotted line (small)]. Furthermore, the coating material 3 was applied to the above-mentioned region S3 (on the light beige coating) in an amount of 120 g / m 2 Immediately after (within 10 minutes), the coating material 3 is dragged in a straight line in the vertical direction with the pattern applying tool 1 until the remaining amount of the coating material 3 is 50 g / m 2 A linear pattern was formed by scraping off the coating material 3 until the coating material 3 was removed ([Fig. 11(e): S3]). After that, the coating was dried for 24 hours to form a decorative coating (S3 process), and the masking tape was removed. The color difference between coating material 1 and coating material 2 was ΔE:40, the color difference between coating material 1 and coating material 3 was ΔE:57, and the color difference between coating material 2 and coating material 3 was ΔE:20. As a result of the above method, in regions S1 and S2, the hiding power (transparency) changes depending on the thickness and concentration of the coating formed by coating material 2, and the color shades etc. have a linear pattern of multiple colors (including many intermediate colors) from natural light beige to light brown, while in region S3, the coating material 3 has a linear pattern of multiple colors (including many intermediate colors) from natural light beige to brown, and a highly aesthetic decorative coating surface with a wood grain (straight grain) pattern and natural boundaries such as butt joints was obtained ([Figure 11(f)]). All painting and drying was carried out under standard conditions (temperature 23°C, relative humidity 50%).

Claims

1. A method for forming a decorative coating, comprising the steps of: Divide the surface to be coated into at least two regions (region S1, region S2), A step S1 of applying a coating material to the region S1 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; A step S2 of applying a coating material to the region S2 and dragging the coating material with a pattern applying tool while the coating material is still wet to form a linear pattern; Including, A method for forming a decorative coating, characterized in that the area S1 and the area S2 have an overlapping portion.

2. 2. The method for forming a decorative coating according to claim 1, wherein the pattern applying tool is a mixture of at least two or more types of sponge materials having different hardness and / or density.

3. 3. The method for forming a decorative coating according to claim 1 or 2, wherein the patterning tool has projections and recesses.

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