Formation method of decorative film

Abstract

To provide a formation method of a decorative film capable of easily and efficiently applying a linear pattern to various surfaces to be coated.SOLUTION: The present invention is a formation method of a decorative film including a step of applying a coating material to a surface to be coated, and then, dragging the coating material with a pattern applicator during the coating material is not yet dried, to form a linear pattern. The pattern applicator has a pattern application part, a support part, and a handle part. When the pattern application part is brought into contact with the surface to be coated, an angle (θ) of the handle part with respect to the surface to be coated is a sharp angle or an obtuse angle.SELECTED DRAWING: Figure 1

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 wall surfaces of buildings, civil engineering structures, etc. One example of such decorative coatings is a decorative coating in which a pattern is formed using a specific pattern-applying tool.

[0003] For example, Patent Document 1 describes a wood grain pattern painting method in which a painted coating film is scraped off with a brush-like object while it is still semi-dry, leaving numerous streaks, while Patent Document 2 describes a hairline-style 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] Japanese Patent Application Laid-Open No. 2008-168191 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-17909 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when using a brush-like object or brush-like patterning tool as in Patent Documents 1 and 2, depending on the surface to be coated, the painting work may be difficult and it may be difficult to impart the desired wood grain pattern. [Means for solving the problem]

[0006] In order to solve these problems, the present inventors discovered a method for forming a decorative coating in which a linear pattern is formed using a specific patterning tool, and thus completed the present invention.

[0007] That is, the present invention has the following features. 1. A method for forming a decorative coating, comprising: The method includes a step of applying a coating material to a surface to be coated, and then dragging the coating material with a patterning tool while the coating material is still wet to form a linear pattern; The pattern applying tool has a pattern applying portion, a support portion, and a handle portion, A method for forming a decorative coating, characterized in that when the pattern-imparting part is brought into contact with the surface to be coated, the angle (θ) of the handle part with respect to the surface to be coated is an acute angle or an obtuse angle. 2. The method for forming a decorative coating according to claim 1, wherein the patterning tool has a patterning portion extending from at least one of the ends of the support portion. 3. The method for forming a decorative coating according to 1. or 2., wherein the surface to be coated is a ceiling surface. 4. The method for forming a decorative coating according to 1. or 2., wherein the surface to be coated has an inside corner. [Effects of the Invention]

[0008] The present invention makes it possible to easily form linear patterns on various surfaces to be coated. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 shows an example of a patterning tool according to the present invention. [Figure 2] FIG. 2 shows an example of a patterning tool of the present invention. [Figure 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. [Figure 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 shows an example of a patterning tool of the present invention. [Figure 8]FIG. 8 shows an example of a patterning tool of the present invention. [Figure 9] FIG. 9 shows an example of a method for forming a decorative coating according to the present invention. [Figure 10] FIG. 10 shows an example of a method for forming a decorative coating according to the present invention. [Figure 11] FIG. 11 shows an example of a method for forming a decorative coating according to the present invention. [Explanation of symbols]

[0010] 1. Patterning tool A: Patterning section A: Contact surface Ae: Edge At: thickness direction a1~a5: sponge material B: Support part C: Handle 2.Surface to be coated 21. Painted surface (ceiling) 3.Coating material X. Drag direction DETAILED DESCRIPTION OF THE INVENTION

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

[0012] The present invention provides a method for forming a decorative coating, comprising the steps of: A step of applying a coating material to a surface to be coated, and then forming a linear pattern by dragging the coating material with a pattern-applying tool while the coating material is still wet; Including, The pattern imparting tool has a pattern imparting part, a support part, and a handle part, and is characterized in that when the pattern imparting part is brought into contact with the surface to be coated, the angle (θ) of the handle part with respect to the surface to be coated is an acute angle or an obtuse angle. By using such a specific pattern imparting tool, the present invention makes it possible to easily and efficiently impart linear patterns even to surfaces that are difficult to paint.

[0013] <Pattern Applier> The patterning tool used in the present invention is one that forms a linear pattern. In a specific method of use, the patterning tool of the present invention is brought into contact with the coating material applied to the surface to be coated while it is still wet, and the coating material is dragged along as it moves, so that the contact surface of the patterning tool partially removes the coating material, thereby imparting a linear pattern.

[0014] Fig. 1 shows a perspective view of a pattern applying tool of the present invention. The pattern applying tool of the present invention has a pattern applying part [Fig. 1: A], a support part [Fig. 1: B], and a handle part [Fig. 1: C]. Specifically, the support part [Fig. 1: B] is located on the surface opposite to the contact surface [Fig. 1: As] of the pattern applying part.

[0015] The pattern-imparting part [Fig. 1: A] of the present invention may be any part capable of imparting a linear pattern when its contact surface [Fig. 1: As] is brought into contact with the covering material and the covering material is dragged along. Examples of such pattern-imparting parts include fibers (including string-like materials) such as sponges and brushes, various types of fabrics (e.g., cotton, nylon, polyester, felt, rags, mesh, work gloves, etc.), paper, or various types of plates (metal, synthetic resin (plastic), wood, ceramic) with an uneven (wavy) surface, and these may be used alone or in combination of two or more.

[0016] In the present invention, it is particularly preferable to use materials that can absorb and remove (scrape off) the covering material, such as sponges and cloths. Among these, it is preferable to use a specific sponge material as shown in Figure 1.

[0017] Figure 2 shows an example of the pattern-imparting section in Figure 1 [Figure 1: A]. This pattern-imparting section is characterized by the mixture of at least two or more sponge materials [Figure 2: a1-a5] with different hardness and / or density. By using such a specific sponge material, the coating material is absorbed during the dragging process, and some of the absorbed coating material is applied. This makes it difficult for the amount of coating material absorbed (scraped) to be uniform (random), resulting in variations in the thickness of the formed coating and the width of the scraped portion. This allows for the easy and effective application of linear patterns with natural line spacing and color shading.

[0018] Furthermore, because such a pattern-imparting portion is a random mixture of at least two or more sponge materials differing in hardness and / or density, even when locally repairing (touching up) an area where the patterning is insufficient during the process of forming a linear pattern, the linear pattern at the repaired area can be blended in seamlessly with the previously formed linear pattern, resulting in the formation of a linear pattern with excellent aesthetics.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, resulting in the formation of a linear pattern with excellent aesthetics.

[0019] 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 (preferably three or more) types of these that differ 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 (preferably three or more) types of sponge materials (preferably including a urethane-based sponge material).

[0020] 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 pattern-imparting section that combines such sponge materials, the degree of deformation and absorption of the coating material differs for each sponge material, resulting in variations in the thickness of the formed coating and the width of the scraped portion, making it possible to form a natural linear pattern with a variety of line spacing and color shading. Here, "hardness" refers to the hardness (C method) value measured from the force when a test piece is compressed to 40% of its thickness in accordance with JIS K6400-2. Also, "density" refers to the apparent density value calculated from the mass and dimensions of the test piece in accordance with JIS K7222.

[0021] The individual outer shapes of the sponge materials are not particularly limited, but are preferably amorphous, three-dimensional. Furthermore, 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 sponge materials of different sizes are mixed. In such cases, sponge materials of different sizes as well as hardness and / or density are mixed randomly, further enhancing the effects of the present invention. The "size" referred to here refers to the longest axis of the outer shape, and is measured, for example, by sieving the material through a sieve with squares on one side of a specified dimension.

[0022] The pattern-imparting portion is preferably formed (fixed) from the sponge material in a block shape. Specifically, the pattern-imparting portion 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 in a stacked manner is more preferable. Furthermore, an embodiment in which multiple sponge materials are fixed in a stacked manner so as to be randomly mixed in the thickness direction, as shown in Figure 2, is even more preferable. By having such a pattern-imparting portion, the effects of the present invention can be enhanced.

[0023] The general shape of the block-shaped pattern-imparting portion is not particularly limited, but examples thereof include block shapes such as a rectangular parallelepiped, cube, triangular prism, square prism, polygonal prism, cylinder, semi-cylinder, and semi-sphere. In this case, the general shape of the surface of the pattern-imparting portion that comes into contact with the dressing (hereinafter also referred to as the "contact surface" [Figs. 1 and 2: As]) is, for example, a triangle, quadrangle (rectangle or square), polygon, circle, or semicircle. The area of the contact surface of the pattern-imparting portion may be appropriately set as desired, but is preferably 3 to 500 cm. 2 (More preferably 5 to 400 cm 2 , 10~300cm 2 ) The height (thickness of the pattern-imparted portion) is preferably 50 mm or less (more preferably 1 to 30 mm), although it depends on the size of each sponge material.

[0024] The surface shape of the contact surface is not particularly limited and may be smooth or have an uneven surface. However, in the present invention, an uneven surface is preferred [see, for example, Figures 2, 3(iii), (iv)]. This allows for the application of a more natural linear pattern with line spacing and color shading, thereby enhancing the effects of the present invention. The contact surface of the pattern-imparting portion may have unevenness partially or entirely. In the present invention, the entire contact surface preferably has an uneven surface. Furthermore, it is preferred that the edge portions (ridge lines) of the contact surface of the pattern-imparting portion are removed [see, for example, Figures 3(i) to (iv)], and more preferably that the contact surface has unevenness [see, for example, Figures 3(iii) and (iv)]. The size of the uneven surface and edge portions of the contact surface is not particularly limited, but the difference in height 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). Furthermore, when this range is satisfied, a natural linear pattern can be easily and efficiently applied.

[0025] The method for forming the patterned portion is not particularly limited, but may be, for example, (1) A molding method in which at least two types of sponge materials are filled into a mold; (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 use compression molding, which can enhance the effects of the present invention.

[0026] When imparting a textured shape to the contact surface or edge of the pattern-imparting portion, for example, in the above-mentioned (1), a molding die onto which the desired shape has been transferred can be used. Furthermore, in the above-mentioned (2), the textured shape can be imparted by a removal process such as cutting, or by a random removal process such as plucking or scraping. In the present invention, it is particularly preferable to impart the textured shape by a random removal process. This allows for a more natural linear pattern to be imparted efficiently. Furthermore, even when performing local repair (touch-up), the linear pattern at the repaired area can be blended seamlessly with the previously formed linear pattern, allowing for the formation of a linear pattern with excellent aesthetics.

[0027] The patterning tool of the present invention is characterized by having a support part [Fig. 1: B] on the surface opposite the contact surface of the patterning part. The support part may be any part capable of supporting the patterning part, provided that the contact surface of the patterning part is rigid enough 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.

[0028] The support portion can be attached in the following manner, for example: As shown in Figures 1 and 4, the pattern-imparting portion is smaller than the surface opposite to the contact surface [Figure 1: As] of the pattern-imparting portion, and extends from the end of the support portion. As shown in Figs. 5 and 6, the pattern-imparting part may be attached so as to cover the entire surface opposite to the contact surface [Fig. 5: As].

[0029] In the present invention, as shown in Figs. 1 and 4, it is preferable to provide the support part so that the pattern-imparting part extends from the end of the support part, and the length from the end of the support part to the end of the pattern-imparting part [Fig. 1: L1, L2] [Fig. 4: L1 to 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 cases, the load at the edge of the pattern-imparting portion is slightly reduced 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 from the previously formed linear pattern portion is not excessively absorbed (scraped away), allowing for the formation of a linear pattern with a natural boundary. Furthermore, even in cases where the surface to be coated is difficult to apply, such as a ceiling or one with inside or outside corners (especially inside corners), linear patterns can be easily formed. The length from the end of the support part to the end of the pattern imparting part does not have to be constant as long as it is within the above range, and for example, L1 to L4 shown in Fig. 4 may be the same or different lengths. Furthermore, Fig. 4 shows a preferred example in which the pattern imparting tool extends in four directions from the end of the support part, but the pattern imparting tool extending from the end of the support part may also be an embodiment in which the pattern imparting part extends from at least one of the ends of the support part.

[0030] 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.

[0031] The pattern applicator of the present invention is characterized in that the support portion has a handle portion [Fig. 1: C], [Fig. 5: C]. The present invention is characterized in that when the pattern-imparting part is brought into contact with the surface to be coated, the angle of the handle part relative to the surface to be coated is an acute angle or an obtuse angle. Specifically, as shown in Figure 7, when the patterning part of the patterning tool [Figure 7:1] is brought into contact with the surface to be coated [Figure 7:2], the angle (θ) [Figure 7:θ] of the handle part relative to the surface to be coated is an acute or obtuse angle (preferably 10 to 85 degrees, more preferably 15 to 80 degrees, for an acute angle, and 95 to 170 degrees, more preferably 100 to 175 degrees, for an obtuse angle). The handle may be fixed in advance to satisfy the above angle range, or the angle may be adjustable as shown in Figure 8, and it can be used while being adjusted during the process of forming the linear pattern. In such cases, linear patterns can be easily formed even on difficult surfaces such as ceilings or those with inside or outside corners (especially inside corners).

[0032] 1 and 5 show a rod-shaped handle, but other shapes such as a U-shape, a V-shape, or a semicircular shape are also possible. The handle may be pre-connected to the support or may be detachable. The handle may be made of, for example, metal, synthetic resin (plastic), wood, ceramic, or the like.

[0033] <Surface to be coated> The surface to be coated in the present invention is preferably the surface of a base material such as a building or civil engineering structure, for example, the surface of a base material constituting the surface of a ceiling, interior or exterior wall, pillar, beam, fittings, etc. The coating formation method of the present invention is particularly suitable when the surface to be coated is a ceiling or has an inside corner. An inside corner is an inside corner such as the junction of a ceiling and a pillar, the junction of a ceiling and a beam, the junction of a ceiling and a wall, or the junction of two walls.

[0034] Examples of substrates that can be used to form the coating surface include gypsum board, concrete, mortar, porcelain tile, brick, cement board, fiber-mixed cement board, cement calcium silicate board, perlite board, ALC board, siding board, extruded board, plywood, wood board, steel plate, plastic plate, and glass plate. The surfaces of these substrates may be subjected to some kind of surface treatment (for example, a sealer, a surfacer, a filler, etc.), or may already have a coating film formed thereon, wallpaper attached thereto, or have a textured pattern.

[0035] <Method of forming decorative coating> The method for forming a decorative coating of the present invention comprises the steps of: (Step A) applying a coating material (a) to a surface to be coated; (Step B) Next, a step of dragging the covering material (a) with the pattern-applying tool while the covering material (a) is still wet; The present invention is characterized by comprising:

[0036] In the above (Step A), at least one type of coating material (a) is applied. Depending on the desired design, two or more types of coating materials (a1, a2, ...) (e.g., coating materials with different colors and / or glosses (lusters)) may be applied separately or in layers.

[0037] Examples of application tools used to apply the coating material (a) include sprays, trowels, rollers, brushes (including paintbrushes), pressing tools (including tapping tools), etc. Among these, examples of rollers include fibrous rollers and porous (spongy) rollers, and examples of pressing tools that can be used include those having sponge, felt, woven fabric, nonwoven fabric, etc.

[0038] In the above (Step A), the amount of coating material (a) applied to the surface to be coated is preferably 10 g / m 2 More than 500g / m 2 or less (preferably 20 g / m 2 More than 300g / m 2 In such a case, a linear pattern can be efficiently imparted in the next step (step B).

[0039] The coating material (a) in the present invention is not particularly limited, and known clear paints, colored paints, etc. can be used. Such coating material (a) can include a binder, or a binder and a pigment (colored pigment, extender pigment) or dye. Also, known additives can be included in the coating material (a). 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.

[0040] Specifically, the coating material (a) of the present invention is preferably a colored paint containing a binder and a pigment (color pigment, extender pigment).

[0041] Examples of binders include water-soluble resins, water-dispersible resins, solvent-soluble resins, solventless resins, non-water-dispersible resins, and the like, as well as composites of these. These may be crosslinkable, and their form is not particularly limited, and they may be either one-component or two-component. In the present invention, water-dispersible resins and / or water-soluble resins are particularly preferred. Examples 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, as well as composites thereof.

[0042] Known color pigments, extender pigments, and the like can be used as pigments. Both organic and inorganic color pigments can be used. Examples of organic pigments include 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; and dioxazine pigments. Examples of inorganic pigments include 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, and pearl pigments. By using one or more of these color pigments, it is possible to color the material to any desired hue.

[0043] 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. Furthermore, by containing a black pigment such as carbon black, lamp black, bone black, graphite, black iron oxide, copper chromium black, cobalt black, or copper manganese iron black as the inorganic pigment, it is easier to obtain a shading of the color of the linear pattern, allowing for the formation of a more natural linear pattern and forming a decorative coating with excellent aesthetics.

[0044] The average particle size of the color pigment is preferably 2 μm or less (more preferably 0.01 to 1 μm), and the average particle size of the color pigment is a value measured by a laser diffraction particle size distribution measuring device.

[0045] 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 %) relative to the total solid content in the coating material (a).

[0046] Examples of extender pigments include heavy calcium carbonate, kansui stone, light calcium carbonate, white carbon, talc, kaolin, clay, china clay, diatomaceous earth, baryte powder, barium sulfate, precipitated barium sulfate, silica sand, silica stone powder, quartz powder, resin beads, glass beads, hollow balloons, and the like, and one or more of these can be used.

[0047] The average particle size of the extender 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 extender pigment is a value measured by a laser diffraction particle size distribution analyzer.

[0048] In the present invention, the desired gloss level of the coating material (a) can be adjusted by appropriately setting the type of the extender pigment, the mixing ratio, etc. The coating material (a) of the present invention may be, for example, 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 (a).

[0049] In addition to the above components, the coating material (a) of the present invention may contain known additives, such as dyes, thickeners, wetting agents, antifreeze agents, film-forming aids, preservatives, antifungal agents, antialgae agents, antibacterial agents, dispersants, antifoaming agents, UV absorbers, light stabilizers, antioxidants, catalysts, dilution solvents, etc., within limits that do not significantly impair the effects of the present invention. The coating material can be produced by uniformly mixing the above components using a conventional method.

[0050] The solid content of the coating material (a) of the present invention is preferably 30 to 95 mass % (more preferably 35 to 90 mass %).

[0051] Furthermore, it is preferable that the hiding ratio of the formed coating of the coating material (a) satisfies the following condition (I). Specifically, when the hiding ratio of the formed coating of the coating material (a) (undiluted: dilution ratio 0%) is defined as the hiding ratio (x), (I) Concealment rate (x) ≥ 70% The covering material (a) preferably has a hiding power (x) of 70% or more (more preferably 80% or more, and even more preferably 90% to 100%). If the hiding power of the covering material (a) is within this range, the hiding power (transparency) will vary depending on the thickness of the coating film formed by the covering material (a), and in combination with the color of the coated surface, a natural linear pattern can be imparted. Specifically, after (Step B), a linear pattern is formed in which the remaining amount of coating material (a) varies in parts and the thickness of the formed coating varies, resulting in a multi-stage visible color and a natural linear pattern in which multiple colors are mixed.

[0052] Furthermore, it is preferable that the coating material (a) satisfies the following conditions (II) and / or (III). Specifically, The hiding ratio of the coating film formed by diluting the coating material (a) 100% with a diluting solvent (e.g., water) is the hiding ratio (y), If the hiding rate of the coating film formed by diluting the coating material (a) 300% with a diluting solvent (e.g., water) is the hiding rate (z), (II) Concealment rate (y) ≥ 60% The covering material (a) 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 (a) preferably has a hiding power (z) of less than 70% (more preferably less than 60%, and even more preferably 5% or more and less than 50%). If the hiding power of the coating material (a) 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 effects of the present invention can be further enhanced.

[0053] Furthermore, the coating material (a) 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 (a) preferably has a difference between the hiding rate (x) and the hiding rate (z) of 30% or more (more preferably 40% or more, and even more preferably 50% to 90%). (V) [Concealment rate (x) - Concealment rate (y)] ≦ 25% The covering material (a) preferably has a difference between the hiding ratio (y) and the hiding ratio (y) of 25% or less (more preferably 20% or less, and even more preferably 0.5% to 18%). (VI) [Concealment rate (y) - Concealment rate (z)] ≥ 30% The covering material (a) preferably has a difference between the hiding rate (y) and the hiding rate (z) of 30% or more (more preferably 40% or more, and even more preferably 45% to 90%). If the hiding power of the coating material (a) is within this range, the change in hiding power (transparency) due to the thickness and concentration of the coating formed by the coating material (a) becomes more visible, and the contrast between high and low hiding power areas becomes clearer. This, combined with the color of the coated surface, allows for the impartation of a more natural linear pattern.

[0054] The hiding power is calculated by the following formula after measuring the visual reflectance of a test piece obtained by applying the coating material to a hiding power test paper using a film applicator (gap 75 μm) and drying it under standard conditions for 24 hours. <expression> Concealment rate (%) = (visual reflectance of paint film on black background) / (visual reflectance of paint film on white background) x 100

[0055] The above (Step B) is a step in which the coating material (a) applied in the above (Step A) is dragged with the pattern-applying tool while the coating material (a) is still wet. In the present invention, "while the coating material (a) is not yet dry" means that the coating material (a) is in a fluid state, and specifically, (Step B) is performed before the coating material (a) becomes dry to the touch. Although it depends on the type of coating material (a), the interval between (Step A) and (Step B) is preferably within 20 minutes (more preferably within 15 minutes, and even more preferably immediately after application of the coating material (a) (within 10 minutes)).

[0056] Furthermore, dragging the covering material (a) with the pattern-applying tool means bringing the pattern-applying tool into contact with the covering material (a) and dragging it along. In this case, it is preferable to drag the pattern-applying tool while lightly pressing it against the covering material (a). This allows the contact surface of the pattern-applying tool to partially absorb (scrape off) the covering material (a), forming a natural linear pattern.

[0057] The direction in which the pattern applicator is dragged can be determined as appropriate depending on the shape of the surface to be coated and the conditions of the coating environment. For example, as shown in Figure 9, the pattern applicator can be dragged in either an acute angle (Figure 9: X1) or an obtuse angle (Figure 9: X2) between the surface to be coated and the handle of the pattern applicator. In the present invention, dragging in an acute angle is preferred. Furthermore, as shown in Figure 10, the angle of the handle can be changed while dragging during the process of forming the linear pattern.

[0058] The above (Step B) is a step in which the coating material (a) is dragged with the pattern-applying tool while it is still wet, thereby partially absorbing (scraping off) the coating material to form a linear pattern. In the above (Step B), the remaining amount of the coating material after dragging is preferably 5 g / m 2 More than 200g / m 2 or less (preferably 10 g / m 2 More than 100g / m 2 In this case, a linear pattern with excellent aesthetics can be obtained.

[0059] In the method for forming a decorative coating of the present invention, for the purpose of improving the design, after the above (Step B), (Step A) and (Step B) can be repeated to form a linear pattern. Examples of the method for forming such a decorative coating include: (Step A) applying a coating material (a) to a surface to be coated; (Step B) Next, a step of dragging the covering material (a) with the pattern-applying tool while the covering material (a) is still wet; (Step A') a step of applying a coating material (a') after the coating material (a) has dried; (Step B') Next, a step of dragging the covering material (a') with the pattern-applying tool while the covering material (a') is still wet; It is preferred that the compound contains:

[0060] In the above (step A'), the coating material (a') is applied. In this case, it is preferable that the coating material (a) and the coating material (a') are coating materials with different colors and / or different glosses (lusters). This can further enhance the design and aesthetic appeal. Note that "after the coating material (a) has dried" means that the coating material (a) is in a non-fluid state (after it has dried to the touch).

[0061] Furthermore, in the method for forming a decorative coating of the present invention, a colored coating can be formed before the above (Step A) for the purpose of improving the design, as long as it does not impair the effects of the present invention. Examples of methods for forming such a decorative coating include: (Step P) A step of applying at least one coating material (p) to the surface to be coated and drying it to form a colored coating (P); (Step A) Next, a step of applying a coating material (a) onto the colored coating film (P), (Step B) Next, a step of dragging the covering material (a) with the pattern-applying tool while the covering material (a) is still wet; It is preferred that the compound contains:

[0062] In the above (step P), at least one coating material (p) is applied. The coating material (p) is preferably a colored paint containing a binder and a pigment (color pigment, extender pigment). The binder and pigment of the coating material (p) can be one or more selected from the same binders and pigments as those used in the above coating material (a). In this case, the coating material (p) and the coating material (a) are preferably coating materials with different colors and / or glosses (lusters). This can further enhance the design and aesthetic appeal. Furthermore, 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 by applying multiple layers, or by forming a textured pattern, depending on the desired design.

[0063] In the present invention, a different color preferably means that 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. Furthermore, 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.

[0064] The color difference (ΔE) in the present invention is a value measured using a color difference meter. 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 coated surface is placed horizontally and dried for 48 hours under standard conditions (temperature 23°C, relative humidity 50%; the same applies below). The color difference (ΔE) can be calculated using the following formula from the L* value, a* value, and b* value (average values of three or more measurement points) of the coating. <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 * )

[0065] The "gloss" is a value measured in accordance with JIS K5600-4-7 "Specular Gloss." Specifically, the coating material is applied to one side of a glass plate using a film applicator with a gap of 150 μm, and the coated surface is placed horizontally and allowed to dry for 48 hours under standard conditions, after which the specular gloss (measurement angle: 60 degrees) is measured.

[0066] The solid content of the coating material (p) of the present invention is preferably 30 to 95% by mass (more preferably 35 to 90% by mass). The content of the color pigment is 2 to 80% by mass (more preferably 3 to 70% by mass, and even more preferably 5 to 60% by mass) based on the total solid content in the coating material (p). The content of the extender pigment is preferably 0 to 70% by mass based on the total solid content in the coating material (a). Furthermore, it is preferable that the covering rate of the coating film formed by the coating material (p) is 70% or more (more preferably 80% or more, and even more preferably 90% or more and 100% or less). In such a case, the effects of the present invention can be stably obtained.

[0067] In the above (step P), examples of application tools for applying the coating material (p) include sprays, trowels, rollers, brushes (including paintbrushes), pressing tools (including tapping tools), etc. Among these, examples of rollers include fibrous rollers and porous (spongy) rollers, and examples of pressing tools that can be used include those having sponge, felt, woven fabric, nonwoven fabric, etc.

[0068] In the above (step P), the amount of coating material (p) applied to the surface to be coated is preferably 10 g / m 2 More than 500g / m 2 or less (preferably 20 g / m 2 More than 300g / m 2 (See below).

[0069] Furthermore, for the purpose of improving the design, after the above (Step B), (Step A) and (Step B) can be repeated to form a linear pattern. Examples of methods for forming such a decorative coating include: (Step P) A step of applying at least one coating material (p) to the surface to be coated and drying it to form a colored coating (P); (Step A) Next, a step of applying a coating material (a) onto the colored coating film (P), (Step B) Next, a step of dragging the covering material (a) with the pattern-applying tool while the covering material (a) is still wet; (Step A') a step of applying a coating material (a') after the coating material (a) has dried; (Step B') Next, a step of dragging the covering material (a') with the pattern-applying tool while the covering material (a') is still wet; It is preferred that the compound contains:

[0070] 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 (Step B) for the purposes of surface protection, improved weather resistance, stain resistance, etc., as 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). [Example]

[0071] The following examples will be given to clarify the features of the present invention, but the present invention is not limited to these examples.

[0072] The following coating materials were prepared: ·Covering material 1 A light beige coating material (L) whose main components are 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, Gloss: 2.0, Heating residue (solid content): 55% by mass, Concealment rate (x): 97%, Concealment rate (y): 75%, Concealment rate (z): 60%)

[0073] ·Covering material 2 A light brown coating material (L) whose main components are 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, Heating residue (solid content): 55% by mass, Concealment rate (x): 98%, Concealment rate (y): 94%, Concealment rate (z): 45%)

[0074] ·Covering material 3 A brown coating material (L) whose main components are 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, Gloss: 2.0, Heating residue (solid content): 55% by mass, Concealment rate (x): 98%, Concealment rate (y): 83%, Concealment rate (z): 32%)

[0075] ·Covering material 4 Black coating material (L) mainly composed of acrylic resin emulsion and pigments (titanium oxide, yellow iron oxide, red iron oxide, carbon black, extender pigment). * Value: 24.5, a * Value: 0.5, b * Value: 0.8, Gloss: 2.0, Heating residue (solid content): 55% by mass, Concealment rate (x): 99%, Concealment rate (y): 94%, Concealment rate (z): 46%)

[0076] ·Covering material 5 A reddish-brown coating material (L) whose main components are 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, Gloss: 2.0, Heating residue (solid content): 55% by mass, Concealment rate (x): 98%, Concealment rate (y): 83%, Concealment rate (z): 32%)

[0077] ·Covering material 6 A light brown coating material (L) whose main components are 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, Gloss: 2.0, Heating residue (solid content): 55% by mass, Concealment rate (x): 99%, Concealment rate (y): 93%, Concealment rate (z): 50%)

[0078] ·Covering material 7 A light brown coating material (L) whose main components are 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, Heating residue (solid content): 55% by mass, Concealment rate (x): 99%, Concealment rate (y): 98%, Concealment rate (z): 65%)

[0079] Table 1 shows the hiding ratios (x), (y), and (z) of the coatings formed by coating materials 1 to 7 and the conditions (I) to (VI). [Table 1]

[0080] 1 patterning tool Mesh cloth containing cotton (rolled up work gloves, etc.) Pattern applicator 2 The patterning tool is as shown in Figures 1 and 4. The patterning part is a rectangular parallelepiped (10 cm long x 15 cm wide x 2.5 cm thick, contact area 150 cm) made of a mixture of the following sponge materials a1 to a5 (individual size: 3 to 20 mm). 2 ) and has an uneven surface and edge (height difference of 1 to 5 mm) on the contact surface. The support part (length 9.5 cm x width 14.5 cm x thickness 5 mm) is made of plastic, and the length from the end of the support part to the end of the pattern applicator [Figure 1: L1 to L4] is 5 mm. The handle part is made of plastic and is attached so that when the pattern applicator part is brought into contact with the surface to be coated, the angle of the handle part to the surface to be coated is 40 degrees. 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 shown in Figures 5 and 6 has a rectangular parallelepiped shape (length 10 cm x width 15 cm x thickness 2.5 cm, contact area 150 cm) in which the above-mentioned sponge materials a1 to a5 (individual size: 3 to 20 mm) are mixed. 2 ) and has an uneven surface (height difference of 1 to 5 mm) on the contact surface and edge. The support part (length 10 cm x width 15 cm x thickness 5 mm) and handle part are made of plastic, and the handle part is attached so that when the pattern-imparting part is brought into contact with the surface to be coated, the angle of the handle part to the surface to be coated is 40 degrees. Pattern applicator 4 The patterning tool shown in Figures 5 and 6 is a rectangular parallelepiped (10 cm long x 15 cm wide x 2.5 cm thick, contact area 150 cm) sponge material a1. 2 The contact surface has an uneven shape (height difference of 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, and the handle part is attached so that when the pattern-imparting part is brought into contact with the surface to be coated, the angle of the handle part to the surface to be coated is 90 degrees.

[0081] Example 1 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). Coating material 2 was applied to the light beige coating in an amount of 120 g / m. 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 2 is dragged in a straight line by the pattern-applying tool 2 in the direction shown in FIG. 11 until the remaining amount of the covering material 2 reaches 50 g / m 2 A linear pattern was formed by scraping off the coating material 2 until it became a uniform color (Step B). The coating was then dried for 24 hours to form a decorative coating. The painting and drying were all carried out under standard conditions (temperature 23°C, relative humidity 50%). The color difference between coating material 1 and coating material 2 was △E: 40. In the above method, the workability when dragging the covering material 2 in a straight line with the pattern-applying tool 2 was good, and linear patterns could be easily applied even to recessed corners. In addition, the opacity (transparency) changed depending on the thickness and concentration of the coating formed by the covering material 2, and the line spacing and shading of the line boundaries were natural, resulting in a decorative coating surface with a highly aesthetic wood grain (straight grain) look and a linear pattern in multiple colors (including many intermediate colors) from light beige to light brown with a contrast between areas with high and low opacity.

[0082] Example 2 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). On the light beige coating, coating material 3 was applied in an amount of 120 g / m. 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 3 was dragged in a straight line with the same pattern-applying tool 2 as in Example 1 until the remaining amount of the covering material 3 reached 50 g / m 2 A linear pattern was formed by scraping off the coating material 3 until it became a thin layer (step B), and the coating was then dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between coating material 1 and coating material 3 was △E: 57. In the above method, the pattern-applying tool 2 was easy to use when dragging the covering material 3 in a straight line, and linear patterns could be easily applied even to recessed corners. Furthermore, the opacity (transparency) varied depending on the thickness and concentration of the coating formed by the covering material 3, and the line spacing and shading of the line boundaries were natural. A highly aesthetic decorative coating surface was obtained with a wood grain (straight grain) look and a linear pattern in multiple colors (including many intermediate colors) ranging from light beige to brown, with a contrast between areas with high and low opacity.

[0083] Example 3 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). Coating material 2 was applied to the light beige coating in an amount of 120 g / m. 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 2 was dragged in a straight line with the same pattern-applying tool 2 as in Example 1 until the remaining amount of covering material 2 reached 50 g / m 2 A linear pattern was formed by scraping off the coating material 2 until the line was removed (step B), and the coating material was dried for 2 hours. Furthermore, the coating material 3 was applied to the linear pattern surface of the coating material 2 in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A'). Next, immediately after (within 10 minutes from step A'), the covering material 3 was dragged in a straight line with the same patterning tool as in Example 2 until the remaining amount of covering material 3 was 50 g / m 2 A linear pattern was formed by scraping off the coating material 3 until the color was a black dot (step B'), and the coating was dried for 2 hours. 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. In the above method, the workability when dragging the coating materials 2 and 3 in a straight line with the pattern-applying tool 2 was good, and linear patterns could be easily applied even to recessed corners. In addition, the opacity (transparency) changed depending on the thickness and concentration of the coating formed by the coating materials 2 and 3, and the line spacing and shading at the line boundaries were natural, with a contrast between high and low opacity areas, and a highly aesthetic decorative coating surface with a wood grain (straight grain) look and linear patterns in multiple colors (including many intermediate colors) from light beige to brown was obtained.

[0084] Example 4 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 4 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a black coating (step P). On the black coating, the coating material 5 was applied in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 5 was dragged in a straight line with the same pattern-applying tool 2 as in Example 1 until the remaining amount of covering material 5 reached 50 g / m 2 A linear pattern was formed by scraping off the coating material 5 until it became a thin layer (step B), and the coating material was dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between the coating material 4 and the coating material 5 was ΔE: 20. In the above method, the workability when dragging the covering material 5 in a straight line with the pattern-applying tool 2 was good, and linear patterns could be easily applied even to recessed corners. In addition, the opacity (transparency) changed depending on the thickness and concentration of the formed coating of the covering material 5, and the line spacing and shading of the line boundaries were natural, and a highly aesthetic decorative coating surface was obtained with a wood grain (straight grain) look and linear pattern in multiple colors (including many intermediate colors) from black to reddish brown with a contrast between areas with high and low opacity.

[0085] Example 5 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). On the light beige coating, coating material 6 was applied in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 6 was dragged in a straight line with the same pattern-applying tool 2 as in Example 1 until the remaining amount of the covering material 6 reached 50 g / m 2 A linear pattern was formed by scraping off the coating material 6 until it became a thin layer (step B), and the coating material was dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between the coating material 1 and the coating material 6 was ΔE: 30. In the above method, the workability when dragging the covering material 6 in a straight line with the pattern-applying tool 2 was good, and linear patterns could be easily applied even to recessed corners. In addition, the opacity (transparency) changed depending on the thickness and concentration of the formed coating of the covering material 6, and the line spacing and shading of the line boundaries were natural. Although the contrast between the high and low opacity areas was slightly inferior compared to Example 1, a highly aesthetic decorative coating surface was obtained with a wood grain (straight grain) look and linear patterns in multiple colors (including many intermediate colors) ranging from light beige to light brown.

[0086] Example 6 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). On the light beige coating, coating material 7 was applied in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 7 was dragged in a straight line with the same pattern-applying tool 2 as in Example 1, and the remaining amount of the covering material 7 was 50 g / m 2 A linear pattern was formed by scraping off the coating material 7 until it became a thin layer (step B), and the coating material was dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between the coating material 1 and the coating material 7 was ΔE: 25. In the above method, the workability when dragging the covering material 7 in a straight line with the pattern-applying tool 2 was good, and linear patterns could be easily applied even to recessed corners. In addition, the opacity (transparency) changed depending on the thickness and concentration of the coating formed by the covering material 7, and the line spacing and shading at the line boundaries were natural. Although the contrast between the high and low opacity areas was slightly inferior compared to Examples 1 and 5, a highly aesthetic decorative coating surface was obtained with a wood grain (straight grain) look and linear patterns in multiple colors (including many intermediate colors) ranging from light beige to light brown.

[0087] Example 7 On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). Coating material 2 was applied to the light beige coating in an amount of 120 g / m. 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 2 is dragged in a straight line with the patterning tool 3 until the remaining amount of the covering material 2 reaches 50 g / m 2 A linear pattern was formed by scraping off the coating material 2 until it became a uniform color (Step B). The coating was then dried for 24 hours to form a decorative coating. The painting and drying were all carried out under standard conditions (temperature 23°C, relative humidity 50%). The color difference between coating material 1 and coating material 2 was △E: 40. In the above method, the workability when dragging the covering material 2 in a straight line with the pattern-applying tool 3 was good, and although it was slightly inferior to Example 1, it was possible to impart a linear pattern even to inside corners. In addition, the hiding power (transparency) changed depending on the thickness and concentration of the coating formed by the covering material 2, and the line spacing and shading at the line boundaries were natural, and a highly aesthetic decorative coating surface was obtained with a wood grain (straight grain) look and a linear pattern in multiple colors (including many intermediate colors) from light beige to light brown with a contrast between areas with high hiding power and areas with low hiding power.

[0088] (Comparative Example 1) On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2 The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). On the light beige coating, coating material 6 was applied in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 6 is dragged in a straight line with the pattern-applying tool 1 until the remaining amount of the covering material 6 reaches 50 g / m 2 A linear pattern was formed by scraping off the coating material 6 until it became a thin layer (step B), and the coating material was dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between the coating material 1 and the coating material 6 was ΔE: 30. In the above method, it was difficult to drag the covering material 6 in a straight line with the pattern-applying tool 1, and it was not possible to impart a natural linear pattern near the recessed corner. Furthermore, the formed coating surface had little change in hiding power (transparency) depending on the thickness and concentration of the formed coating of the covering material 6, and the color of the linear pattern was inferior to that of Example 5.

[0089] (Comparative Example 2) On a ceiling surface ([Fig. 11:21], base material: slate board) with an inside corner (joint part between wall and ceiling surface) as shown in Fig. 11, coating material 1 was applied at an amount of 150 g / m 2The entire surface was coated with a roller (using a fiber roller) and dried for 2 hours until the paint was dry to the touch or better, forming a pale beige coating (step P). On the light beige coating, coating material 6 was applied in an amount of 120 g / m 2 Apply the mixture to the entire surface with a roller (using a fiber roller) (Step A). Next, immediately after (within 10 minutes) (Step A), the covering material 6 is dragged in a straight line by the patterning tool 4 until the remaining amount of the covering material 6 reaches 50 g / m 2 A linear pattern was formed by scraping off the coating material 6 until it became a thin layer (step B), and the coating material was dried for 24 hours. The coating and drying were all carried out under standard conditions. The color difference between the coating material 1 and the coating material 6 was ΔE: 30. In the above method, it was difficult to drag the covering material 6 in a straight line with the pattern-applying tool 4, and it was not possible to impart a natural linear pattern near the inside corner. In addition, the formed coating surface had little change in hiding power (transparency) depending on the thickness and concentration of the formed coating of the covering material 6, and the color of the linear pattern was slightly inferior to that of Example 5.

Claims

1. A method for forming a decorative coating, comprising: The method includes a step of applying a coating material to a surface to be coated, and then dragging the coating material with a patterning tool while the coating material is still wet to form a linear pattern; The pattern applying tool has a pattern applying portion, a support portion, and a handle portion, A method for forming a decorative coating, characterized in that when the pattern-imparting part is brought into contact with the surface to be coated, the angle (θ) of the handle part with respect to the surface to be coated is an acute angle or an obtuse angle.

2. 2. The method for forming a decorative coating according to claim 1, wherein the patterning tool has a patterning portion extending from at least one end of the support portion.

3. 3. The method for forming a decorative coating according to claim 1, wherein the surface to be coated is a ceiling surface.

4. 3. The method for forming a decorative coating according to claim 1, wherein the surface to be coated has an internal corner.

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