JP5996178B2 - Building board, building and decoration method - Google Patents

Description

The present invention relates to a decorative method for decorating a building board, a building, and the surface of a base material of the building board.

  Conventionally, the technique regarding the building board which has a designability is proposed. For example, Patent Document 1 discloses a building board or the like that has been provided with a high design by applying effective shading. This building board has a concave portion on the surface, and the concave portion has a bottom region and left and right side regions. The concave portion is painted so that the bottom region is the darkest color, and the side region is gradually lightened from the bottom region toward the surface side. The left and right side areas are painted such that the average density of the side area with the longer horizontal component is lighter than the average density of the shorter side area when the concave portion is horizontally projected from above.

Japanese Patent Laid-Open No. 11-22142

  Building boards having convex portions formed on the surface have been put into practical use. In such a building board, the convex portion can be formed in the following shape. That is, the convex portion includes an upper surface, a first inclined surface, and a second inclined surface. The upper surface forms the top of the convex portion. The first inclined surface is continuous with the upper surface, inclines toward the base end side of the convex portion, and inclines toward the bottom, and in a mounted state in which the building board is attached to the building, the lower side in the vertical direction with respect to the upper surface Placed in. The second inclined surface is continuous with the upper surface, is inclined so as to spread toward the base end side of the convex portion, and is disposed on the upper side in the vertical direction with respect to the upper surface in the attached state.

  In such a building board, when decoration is performed by paying attention to the concave part that forms a pair with the convex part among the surface shapes of the building board, the desired three-dimensionality cannot be recognized in the mounted state. The inventor found that there is. Furthermore, the inventor has also found that when the convex portion is visually recognized, the convex portion may be uncomfortable.

The present invention relates to a building board that is attached to a building in a state in which each inclined surface of a convex portion that is shaped like a hem is vertically arranged with respect to the upper surface that forms the top of the convex portion, An object of the present invention is to provide a building board , a building, and a decoration method capable of enhancing the three-dimensional effect of the convex portion for an observer who has visually recognized the building board.

One aspect of the present invention made in view of the above-described conventional problems is a building board in which a convex portion is formed on the surface and the surface is decorated, and the convex portion forms the top of the convex portion. In a mounting state in which the flat plate or the flat upper surface is continuous with the upper surface and is inclined toward the base end side of the convex portion so as to widen toward the base, and the building board is attached to the building. A flat or planar first inclined surface disposed on the lower side in the vertical direction with respect to the upper surface, and incline toward the base end side of the convex portion so as to spread toward the bottom, and the attachment in the state, the are arranged on the upper side in the vertical direction with respect to the top surface includes a flat or planar second inclined surface, said first inclined surface, J iS Z 8729: 2004 of L * a * b * lightness in color system is pressurized so that the first lightness value less than the reference brightness value for the top surface Is, the second inclined surface, prior Symbol lightness, is decorated so that a second brightness value higher than the reference brightness value with respect to said top surface, said convex portion, said said upper surface first inclined surface The brightness changes from the reference brightness value to the first brightness value at the boundary, and the brightness changes from the reference brightness value to the second brightness value at the boundary between the upper surface and the second inclined surface. Ru is the changed decoration state, a building board. In this building board, the second inclined surface may be decorated so that the brightness is 9 or more higher than the first inclined surface.

According to this, it is possible to make the shade generated when the building board is irradiated with the irradiation light emphasized. For example, it is possible to enhance the shadow even when the irradiation light is weak .

Another aspect of the present invention is a building including any of the above-described building boards, wherein the first inclined surface is disposed on the lower side in the vertical direction with respect to the upper surface, and the second inclined surface is It is a building to which the building board is attached in a state of being arranged above the upper surface in the vertical direction.

According to this, even if the building board is attached outdoors or indoors, the same kind of action as the above-described building board can be obtained.

According to still another aspect of the present invention, a convex portion is formed on a surface, and the convex portion is continuous with the flat or planar upper surface forming the top of the convex portion, and the convex surface. In a mounted state where the building board is inclined toward the base end side of the shaped part and the building board is attached to the building , the flat or planar first is disposed below the upper surface in the vertical direction. as an inclined surface continuous with the upper surface, inclined flared shape toward the base end side of the convex portion, in the mounted state, it is arranged on the upper side in the vertical direction with respect to the top surface, planar or A decorating method for decorating the surface of the base material of the building board, comprising: a flat second inclined surface, wherein the upper surface, the first inclined surface, and the second inclined surface. includes a decorative process for decorating the surface of the substrate comprising, in the decorative process, the first inclined surface, J iS Z 872 : Lightness in 2004 L * a * b * color system, is decorated so that a first brightness value lower than the reference brightness value for the top surface, the second inclined surface, prior Symbol brightness, the upper surface The convex portion is decorated at a boundary between the upper surface and the first inclined surface, and the lightness is changed from the reference lightness value to the first lightness value. changes to a value, and at the boundary between the upper surface and the second inclined surface, the lightness Ru is a decorative state changed to the second brightness value from the reference brightness value, a decoration method. In the decoration method, in the decoration step, the second inclined surface may be decorated so that the brightness is 9 or more higher than the first inclined surface. In the decoration method, in the decoration step, the second inclined surface may be decorated so that the brightness is 31 or more higher than the first inclined surface.

According to the decoration method mentioned above, the effect | action similar to the building board mentioned above can be acquired. That is, it is possible to produce a building board that can emphasize the shadow .

  Moreover, you may make it discharge the ink from the inkjet head with which an inkjet recording apparatus is provided, and decorate the surface of the said base material in the said decoration process. According to this, a decoration process can be efficiently performed with the inkjet system by an inkjet recording device. In the decoration process, it is possible to perform decoration with suitable quality.

  Moreover, the said decoration method is data for decorating the surface of the said base material, Comprising: The upper surface data part for decorating the said upper surface, and the 1st for decorating the said 1st inclined surface Including an acquisition step of acquiring decoration data of a data structure including a data portion and a second data portion for decorating the second inclined surface. In the decoration step, the acquisition step is acquired in the acquisition step. In addition, ink may be ejected corresponding to the decoration data to decorate the surface of the substrate. According to this, it can decorate according to the surface shape of a building board. At that time, it is possible to prevent the displacement of the decoration on the upper surface, the first inclined surface, and the second inclined surface. By using the decoration data having the data structure as described above, it is possible to suitably perform complex decoration in which the brightness is changed on each of the upper surface, the first inclined surface, and the second inclined surface. If a suitable brightness is set for each of the upper surface data portion, the first data portion, and the second data portion, each of the upper surface, the first inclined surface, and the second inclined surface can be set to a suitable brightness.

According to the present invention, the building board to be attached to the building in a state where the inclined surfaces of the projecting portion having a flared shape are arranged vertically above and below the top surface forming the top of the projecting portion. Therefore, it is possible to obtain a building board , a building, and a decoration method capable of enhancing the three-dimensional effect of the convex portion for an observer who has visually recognized the building board.

It is a figure which shows an example of the base material of a building board. (A) is a front view which shows the surface of a base material. (B) is a right side view of the substrate. (C) is the M section enlarged view shown to FIG. 1 (B). It is a figure which shows an example of the surface of a building board. It is a figure explaining the state by which the irradiation light irradiated from the light source was irradiated to the surface of the building board. It is a figure which shows an example of the convex part of the building board decorated with the gray color whose inclination angle of a 1st inclined surface and a 2nd inclined surface is 45 degrees. (A) is a figure which shows an example when the angle ((theta)) which the perpendicular | vertical line of an upper surface and a light ray make is set to 30 degrees. (B) is a figure which shows an example when the angle ((theta)) which the perpendicular of an upper surface and a light ray make is set to 45 degrees.

  Embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the configurations described below, and various configurations can be employed in the same technical idea. For example, some of the configurations shown below may be omitted or replaced with other configurations. Other configurations may be included.

<Building board>
The building board 20 will be described with reference to FIGS. As a building board, there are a building board used as an interior material (inner wall, etc.) of a building, and a building board used as an exterior material (outer wall, etc.) of a building. The building board 20 in the present embodiment may be a building board that is attached to a place irradiated with irradiation light from a predetermined light source, and any building board of interior material and exterior material can be adopted. it can. Below, the building board 20 as an exterior material is demonstrated as an example.

  The base material 30 shown to FIG. 1 (A)-(C) is the same as the base material which comprises the building board already put into practical use. A convex portion 50 is formed on the surface of the base material 30 to be decorated (patterned). As shown in FIGS. 1A and 1B, the convex portions 50 are repeatedly formed at a predetermined interval in a certain direction. The certain direction corresponds to the vertical direction when the building board 20 formed by decorating the base material 30 is attached to the building. The upper surface 51 is a surface that forms the top of the convex portion 50. The first inclined surface 53 is a surface that is continuous with the upper surface 51 and is inclined so as to spread toward the base end 57 of the convex portion 50. The second inclined surface 55 is a surface that is continuous with the upper surface 51 and is inclined so as to expand toward the base end 57 of the convex portion 50. Assume that the building board 20 is attached to a building. Specifically, it is assumed that the building board 20 as an exterior material is attached as an outer wall of a house as a building. In such a state (attached state), the first inclined surface 53 is disposed below the upper surface 51 in the vertical direction. In the attached state, the second inclined surface 55 is disposed on the upper side in the vertical direction with respect to the upper surface 51.

  The upper surface 51, the first inclined surface 53, and the second inclined surface 55 are all flat surfaces or planar surfaces. The flat surface is a surface that is substantially flat as a whole, although undulations and the like are formed for the purpose of imparting designability to the surface. As shown in FIG. 1C, the inclination angle of the first inclined surface 53 with respect to the upper surface 51 is set to θ3, and the inclination angle of the second inclined surface 55 is set to θ4. In the base material 30 (building board 20) of this embodiment, θ3 and θ4 are set to the same angle. For example, θ3 and θ4 are set to angles such as 30 °, 40 °, 45 °, and 60 °. θ3 and θ4 may be angles other than these exemplified angles. θ3 and θ4 may be at different angles.

  The building board 20 is formed by decorating the surface of the base material 30 including the upper surface 51, the first inclined surface 53, and the second inclined surface 55 in a predetermined pattern. Accordingly, the surface of the building board 20 is decorated in a predetermined pattern. For example, as shown in FIG. 2, the building board 20 is formed by decorating the surface of the base material 30 in a rock surface tone (stone tone), and the surface is in a state decorated in a rock surface tone. . In the state shown in FIG. 2, the first inclined surface 53 is decorated so that the lightness in the L * a * b * color system of JIS Z 8729: 2004 is lower than the upper surface 51. That is, when the brightness of the first inclined surface 53 is L * (1) and the brightness of the upper surface 51 is L *, L * (1) and L * are “L * (1) <L *”. Satisfy the relationship. The second inclined surface 55 is decorated so that the lightness in the L * a * b * color system of JIS Z 8729: 2004 is higher than the upper surface 51. That is, when the brightness of the second inclined surface 55 is L * (2), L * (2) and L * satisfy the relationship “L * <L * (2)”.

<Decoration method>
The decoration method which decorates the surface of the base material 30 of the building board 20 can be performed using various apparatuses for decoration. For example, it is performed using an ink jet recording apparatus. According to the ink jet recording apparatus, decoration with suitable quality can be efficiently performed. As the ink jet recording apparatus, a conventionally used ink jet recording apparatus can be used. The ink jet recording apparatus includes an ink jet head that ejects ink. The ink jet recording apparatus includes a number of ink jet heads corresponding to the ink colors used for decoration. Corresponding color ink is ejected from each inkjet head. Examples of the ink used for the decoration include an active energy curable ink. In this case, the ink jet recording apparatus includes an irradiation unit for irradiating active energy. Examples of the active energy curable ink include ultraviolet curable ink and electron beam curable ink. For example, when ultraviolet curable ink is used, the surface of the substrate 30 (ink dots formed by the landed ink droplets) is irradiated with ultraviolet rays after the decoration (ink ejection) on the surface of the substrate 30 is completed. The As a result, the ink dots are cured. The irradiation unit included in the ink jet recording apparatus is configured by an ultraviolet irradiation unit.

  According to the decoration method using an inkjet recording device, the surface of the base material 30 can be decorated in full color, and the building board 20 in which the surface is decorated in full color can be produced. In other words, according to this decoration method, the building board 20 in which a full-color image is recorded on the surface of the base material 30 can be produced. Other description of the ink jet recording apparatus is omitted.

  The decoration method includes an acquisition process of acquiring decoration data and a decoration process of decorating the surface of the substrate 30. In the acquisition process, decoration data is acquired. The decoration data is stored in, for example, a storage unit such as a hard disk included in an information processing apparatus connected to the inkjet recording apparatus so as to be able to perform data communication. In the information processing apparatus, when decoration is started by the ink jet recording apparatus, the decoration data is read from the storage unit to a storage area such as a RAM included in the apparatus. As a result, the information processing apparatus acquires decoration data corresponding to the decoration of the surface of the base material 30.

The decoration data is data for decorating the surface of the base material 30. The decoration data has a data structure including an upper surface data portion, a first data portion, and a second data portion. The upper surface data portion is data for decorating the upper surface 51. The first data portion is data for decorating the first inclined surface 53. The second data part is data for decorating the second inclined surface 55. As shown in FIG. 2, when the base end 57 is also decorated, the decoration data also includes a base end data part for decorating the base end 57. As described above, the upper surface data portion, the first data portion, and the second data portion satisfy the relationship of “L * (1) <L *” and “L * <L * (2)”, respectively. Above, the brightness is set as follows. That is, the first data portion is set to a brightness that satisfies the relationship of Equation 1 with respect to the upper surface data portion. The second data portion is set to a brightness that satisfies the relationship of Equation 2 with respect to the upper surface data portion.
Formula 1: L * (1) = L * × cos (θ1) / cos (θ)
Formula 2: L * (2) = L * × cos (θ2) / cos (θ)
Here, θ, θ1, and θ2 are angles as shown in FIG. Specifically, θ is an angle formed by the perpendicular PL of the upper surface 51 and the light beam of the irradiation light irradiated on the building board 20. θ1 is an angle formed by the perpendicular PL1 of the first inclined surface 53 and the light beam of the irradiation light irradiated on the building board 20 (the angle of the light beam is θ as described above). θ <b> 2 is an angle formed by the perpendicular PL <b> 2 of the second inclined surface 55 and the light beam of the irradiation light irradiated on the building board 20.

When the building board 20 is an exterior material (outer wall), the light source shown in FIG. 3 is the sun, and irradiation light is sunlight. Therefore, θ corresponds to the altitude of the sun. The altitude in Japan ranges from 0 ° (sunrise, sunset) to 78 ° (south / central altitude). θ1 is “θ3 + θ”, and θ2 is “θ4-θ”. As described above, θ 3 is the inclination angle of the first inclined surface 53, and θ 4 is the inclination angle of the second inclined surface 55. Therefore, if θ3 is used instead of θ1, the above equation 1 is
L * (1) = L * × cos (θ3 + θ) / cos (θ)
Can also be defined. Similarly, if θ4 is used instead of θ2, the above equation 2 is
L * (2) = L * × cos (θ4−θ) / cos (θ)
Can also be defined.

  In the information processing apparatus, the obtained decoration data is subjected to image processing, and data for transmission to the inkjet recording apparatus is generated. The generated data is transmitted to the ink jet recording apparatus. In the ink jet recording apparatus, a decoration process is executed, ink is ejected from an ink jet head included in the apparatus itself, and the surface of the base material 30 is decorated. Specifically, a decorating process is performed as follows. In the ink jet recording apparatus, data from the information processing apparatus is received and stored in a storage area such as a RAM included in the apparatus. In the ink jet recording apparatus, a drive signal supplied to the ink jet head is generated from the data stored in the storage area. The generated drive signal is supplied to the inkjet head.

  In the ink jet recording apparatus, the conveyance of the base material 30 placed on the conveyance unit included in the apparatus is started. The base material 30 is conveyed to the position of an inkjet head by a conveyance part. In the ink jet head, ink is ejected in accordance with the generated drive signal. The ejected ink lands on the surface of the base material 30 that has been transported by the transport section, and the surface of the base material 30 is decorated.

  As described above, the drive signal is generated based on the decoration data. Therefore, in the decoration process, the ejection of ink corresponding to the decoration data is controlled. As a result, the upper surface 51 is decorated in a state corresponding to the upper surface data. The first inclined surface 53 is decorated in a state corresponding to the first data. The second inclined surface 55 is decorated in a state corresponding to the second data.

  In the decoration by the upper surface data portion, the pattern recorded on the upper surface 51, the decoration recorded by the first data portion, the pattern recorded on the first inclined surface 53, and the decoration by the second data portion, The pattern recorded on the second inclined surface 55 may be any pattern. The patterns formed by the upper surface 51, the first inclined surface 53, and the second inclined surface 55 may be in such a relationship that each of them continuously forms a predetermined pattern. For example, a set of the upper surface data portion, the first data portion, and the second data portion is data corresponding to a single continuous pattern. In addition, the decoration data shows that the entire surface of the building board 20 is a single pattern (a “rock-like” pattern as shown in FIG. 2; as another example, a “brick-like” pattern). In such a case, the set of the upper surface data portion, the first data portion, and the second data portion is data corresponding to a continuous part of one grouped pattern.

<Convex part>
The convex part 50 to which the decoration based on the brightness (L * (1), L * (2)) calculated by Formula 1 and Formula 2 mentioned above was made is demonstrated with reference to FIG. 4A and 4B are views of the convex portion 50 viewed from the upper surface 51 side, as in FIG. The example shown in FIG. 4 relates to the inclination angles of the first inclined surface 53 and the second inclined surface 55, and θ3 and θ4 are both 45 °. The convex portion 50 is decorated with a gray color in any case. L * of the upper surface 51 is 54 in common in FIGS.

When θ is 30 °, L * (1) is obtained from the relationship between Equation 1 and “θ1 = θ3 + θ”.
L * (1) = L * × cos (45 ° + 30 °) /cos30°=0.3 L *
L * (2) is expressed by the relationship between Equation 2 and “θ2 = θ4-θ”.
L * (2) = L * × cos (45 ° -30 °) /cos30°=1.11L*
It becomes. As described above, since L * is 54, L * (1) is “0.3 × 54 = 16”, and L * (2) is “1.11 × 54 = 60”. L * and L * (1) satisfy “L * (1) <L *”, and L * and L * (2) satisfy the relationship “L * <L * (2)”. Decorative data set in this way, specifically, a top data portion with L * set to 54, a first data portion with L * (1) set to 16, and L * (2) The convex part 50 decorated corresponding to the decoration data including the second data part set to 60 is in a state as shown in FIG. As is clear from FIG. 4A, a three-dimensional effect can be obtained with the convex portions 50 decorated in this way.

When θ is 45 °, L * (1) is obtained from the relationship between Equation 1 and “θ1 = θ3 + θ”.
L * (1) = L * × cos (45 ° + 45 °) / cos45 ° = 0
L * (2) is expressed by the relationship between Equation 2 and “θ2 = θ4-θ”.
L * (2) = L * × cos (45 ° −45 °) /cos45°=1.41L*
It becomes. As described above, since L * is 54, L * (2) is “1.41 × 54 = 76”. L * (1) is 0. L * and L * (1) satisfy “L * (1) <L *”, and L * and L * (2) satisfy the relationship “L * <L * (2)”. Decorative data set in this way, specifically, a top data portion with L * set to 54, a first data portion with L * (1) set to 0, and L * (2) The convex part 50 decorated corresponding to the decoration data including the second data part set to 76 is in a state as shown in FIG. As is clear from FIG. 4B, the projected portion 50 decorated in this way can provide a three-dimensional effect.

<Experimental result>
This time, test plates (building plates including the building plate 20) in which the surface of the base material 30 as shown in FIG. 1 is decorated with various decoration data are produced, and the three-dimensional effect on each of the test plates is sensed. Tested. Hereinafter, experimental results will be described. In the “experimental results” described below, components that are the same as those described above will be described using the same names and symbols.

<Experiment method>
In this experiment, Experiment 1 to Experiment 3 and Experiment 4 with different patterns were performed. In Experiment 1 to Experiment 3, a plurality of decoration data is generated, and each test plate that decorates the surface of the base material 30 is scored according to the evaluation criteria described below with each of the generated decoration data. did. The comparison target (reference) in each item of this evaluation criterion is a comparison plate in which the entire upper surface 51, first inclined surface 53, and second inclined surface 55 (surface of the convex portion 50) are decorated with the same brightness. is there. For example, “slightly emphasized stereoscopic effect” having two evaluation points is selected when the test plate feels that the stereoscopic effect is slightly emphasized compared to the comparison plate. It is an item. Ten people evaluated each test plate, and the average value was obtained from the score of each person and used as the evaluation score of the test plate to be evaluated. When the evaluation score was 2 or more, the evaluation was “◯” (three-dimensional effect can be emphasized), and when it was less than 2, the evaluation was “x” (three-dimensional effect could not be emphasized). In addition, although mentioned later for details, the evaluation in Table 2 of Experiment 2 is also a result of having performed according to the above-mentioned reference | standard.
(Evaluation criteria)
Three-dimensional effect disappears ... 0 points There is no difference in three-dimensional effect ... 1 point Three-dimensional effect is slightly emphasized ... 2 points Three-dimensional effect is remarkably emphasized ... 3 points

  Also about Experiment 4, several decoration data were produced | generated and it evaluated for each test board which decorated the surface of the base material 30 by each produced | generated decoration data. Evaluation in Experiment 4 was also performed according to the above criteria. When the evaluation could not be judged as either “◯” or “×”, “△” was given. When the three-dimensional effect was emphasized extremely remarkably, the evaluation was “評 価”. The experimental conditions unique to each experiment, such as details of the decoration data in Experiment 1 to Experiment 4, will be described in each description of Experiment 1 to Experiment 4.

  In Experiment 1 to Experiment 4, L *, L * (1), and L * (2) were measured for the test plates prepared in each experiment. For the measurement, a minute surface spectral color difference meter (VSS400 manufactured by Nippon Denshoku Industries Co., Ltd.) was used. The measurement light source was D65. Light rays from the measurement light source are emitted from a direction perpendicular to the measurement surface.

<Experiment 1>
Experiment 1 is based on the following conditions. Regarding the inclination angles of the first inclined surface 53 and the second inclined surface 55, the test plates 1 to 10 in Experiment 1 are convex with θ 3 and θ 4 (see FIG. 1C) both set to 45 ° (absolute value). A shaped part 50 is formed. The base material 30 is a ceramic board. Regarding each decoration data used for decoration of the test plates 1 to 10, in Experiment 1, a beige color having L * (theoretical value) of 54 was set in the upper surface data portion. In Experiment 1, the angle of the light beam, that is, θ shown in FIG. 3 was set to 45 ° with each angle of 10 ° intervals in the range of 0 ° to 80 °. Regarding the set range of θ, 0 ° as the lower limit is the altitude of the sun at sunrise and sunset in Japan, and 80 ° as the upper limit is an angle corresponding to the south-central altitude in Japan.

  Under such conditions, in Experiment 1, using “θ3, θ4 = 45 °”, L * “54”, and each θ, for each θ, from Equation 1 (using θ3 + θ as θ1), L * (1) was calculated, and L * (2) was calculated from Equation 2 (using θ4-θ as θ2). However, in the test plates 6 to 10 (θ is 45 ° or more), the theoretical value of L * (1) is 0 and constant. This is because, when θ is an angle of 45 ° or more (θ3 + θ = 90 ° or more), the light beam theoretically stops intersecting the first inclined surface 53 (when both θ and θ3 are 45 ° (see “ Test plate 6 "), the light beam is parallel to the first inclined surface 53). When θ is an angle of 45 ° or more, the theoretical value of L * (1) calculated by Equation 1 is 0 or less. Since the lower limit of the lightness is 0, the theoretical value of L * (1) was also set to 0 for the test plates 7 to 10 in which L * (1) obtained by Equation 1 has a negative value. For the test plates 8 to 10 (θ is 60 ° or more), the theoretical value of L * (2) is 100 and constant.

  Regarding each decoration data used for decoration of the test plates 1 to 10, in Experiment 1, L * (1) and L * (2) calculated or set in the first data part and the second data part in this way ) (Both theoretical values). That is, in the test plates 1 to 10 for each θ in Experiment 1, the upper surface 51 is a beige color of L * “54” (average brightness), and the first inclined surface 53 is a beige color of L * (1) for each θ. Thus, the second inclined surface 55 is decorated with an ink jet recording apparatus using an ultraviolet curable ink so that it becomes a beige color of L * (2) for each θ. The measured value of L * of the upper surface 51 thus decorated was 54.4, which was in a state that can be identified with the theoretical value. Similarly, the measured value of L * (1) of the first inclined surface 53 for each θ and the measured value of L * (2) of the second inclined surface 55 for each θ are as shown in Table 1, and are theoretical. It was in a state where it could be identified with the value. In the test plates 6 to 10 (θ is 45 ° or more), the measured value of L * (1) was constant at 2.2. In the test plates 8 to 10 (θ is 60 ° or more), the measured value of L * (2) was constant at 87.0. Such a difference is because “0” and “100” are theoretical values.

As a result of Experiment 1, as shown in Table 1, it is confirmed that the three-dimensional effect of the convex portion 50 is emphasized with respect to the comparison plate with the test plates 4 to 10 (θ: 30 ° to 80 °). It was. Each of the test plates 4 to 10 relates to the above-described conditions for decorating the first inclined surface 53 (“L * (1) <L *” and Expression 1) and the decorating of the second inclined surface 55. The conditions (“L * <L * (2)” and Equation 2) are satisfied. The test plates 1 to 3 do not satisfy “L * <L * (2)” for both theoretical values and measured values.

<Experiment 2>
Experiment 2 is based on the following conditions. Regarding the inclination angles of the first inclined surface 53 and the second inclined surface 55, the test plates 1 to 10 in Experiment 2 are convex in which θ3 and θ4 (see FIG. 1C) are both 60 ° (absolute value). A shaped part 50 is formed. The base material 30 is a calcium silicate board. Regarding each decoration data used for decoration of the test plates 1 to 10, in Experiment 2, a brown color having L * (theoretical value) as 42 was set in the upper surface data portion. The angle of the light beam in Experiment 2 (see “θ” shown in FIG. 3) is the same as in Experiment 1. The description regarding this is omitted.

  Under such conditions, in Experiment 2, using “θ3, θ4 = 60 °”, L * “42”, and each θ, for each θ, from Equation 1 (using θ3 + θ as θ1), L * (1) was calculated, and L * (2) was calculated from Equation 2 (using θ4-θ as θ2). However, in the test plates 4 to 10 (θ is 30 ° or more), the theoretical value of L * (1) is 0 and constant. Similar to the case of Experiment 1, when θ is an angle of 30 ° or more (θ3 + θ = 90 ° or more), the light beam theoretically does not cross the first inclined surface 53 (when θ is 30 ° (“ Test plate 4 ”), the light beam is parallel to the first inclined surface 53). When θ is an angle of 30 ° or more, the theoretical value of L * (1) calculated by Equation 1 is 0 or less. About the test plates 5-10 in which L * (1) becomes a negative value, the point which sets the theoretical value of L * (1) to 0 is the same as that of Experiment 1. For the test plates 9 and 10 (θ is 70 ° or more), the theoretical value of L * (2) is 100 and constant.

  Regarding each decoration data used for decoration of the test plates 1 to 10, in Experiment 2, L * (1) and L * (2) calculated or set in the first data part and the second data part in this way ) (Both theoretical values). That is, in the test plates 1 to 10 for each θ in Experiment 2, the upper surface 51 is brown of L * “42” (average brightness), and the first inclined surface 53 is brown of L * (1) for each θ. The second inclined surface 55 is decorated with an inkjet recording apparatus using an ultraviolet curable ink so that the second inclined surface 55 becomes brown of L * (2) for each θ. The measured value of L * of the upper surface 51 decorated in this way was 42.3, which was in a state that can be identified with the theoretical value. Similarly, the measured value of L * (1) of the first inclined surface 53 for each θ and the measured value of L * (2) of the second inclined surface 55 for each θ are as shown in Table 2 and are theoretical. It was in a state where it could be identified with the value. In the test plates 4 to 10 (θ is 30 ° or more), the measured value of L * (1) was constant at 2.5. For the test plates 9 and 10 (θ is 70 ° or more), the measured value of L * (2) was constant at 86.2. This difference is because “0” and “100” are theoretical values as described above.

The result of Experiment 2 is as shown in Table 2. Regarding the first inclined surface 53, it was confirmed that the three-dimensional effect was emphasized with respect to the comparative plate in all the test plates 1 to 10. Regarding the second inclined surface 55, it was confirmed that the three-dimensional effect was emphasized with respect to the comparative plate in the test plates 4 to 10. As a result, in Experiment 2, in the test plates 4 to 10, the stereoscopic effect of the convex portion 50 was emphasized with respect to the comparative plate. Each of the test plates 4 to 10 relates to the above-described conditions for decorating the first inclined surface 53 (“L * (1) <L *” and Expression 1) and the decorating of the second inclined surface 55. The conditions (“L * <L * (2)” and Equation 2) are satisfied. The test plates 1 to 3 do not satisfy “L * <L * (2)” for both theoretical values and measured values.

<Experiment 3>
Experiment 3 is based on the following conditions. Regarding the inclination angles of the first inclined surface 53 and the second inclined surface 55, the test plates 1 to 10 in Experiment 3 are convex in which θ3 and θ4 (see FIG. 1C) are both 30 ° (absolute value). A shaped part 50 is formed. The base material 30 is a metal siding board. Regarding the decoration data used for decoration of the test plates 1 to 10, in Experiment 3, a gray color with L * (theoretical value) of 58 was set in the upper surface data portion. The angle of the light beam in Experiment 3 (see “θ” shown in FIG. 3) is the same as in Experiment 1. The description regarding this is omitted.

  Under such conditions, in Experiment 3, using “θ3, θ4 = 30 °”, L * “58”, and each θ, for each θ, from Equation 1 (using θ3 + θ as θ1), L * (1) was calculated, and L * (2) was calculated from Equation 2 (using θ4-θ as θ2). However, in the test plates 8 to 10 (θ is 60 ° or more), the theoretical value of L * (1) is 0 and constant. Similar to the case of Experiment 1, when θ is an angle of 60 ° or more (θ3 + θ = 90 ° or more), the light beam theoretically does not cross the first inclined surface 53 (when θ is 60 ° (“ Test plate 8 ”), the light beam is parallel to the first inclined surface 53). When θ is an angle of 60 ° or more, the theoretical value of L * (1) calculated by Equation 1 is 0 or less. About the test plates 9 and 10 in which L * (1) is a negative value, the point that the theoretical value of L * (1) is 0 is the same as in Experiment 1. The theoretical values of the test plates 8 to 10 (θ is 60 ° or more) and L * (2) are constant at 100.

  Regarding each decoration data used for decoration of the test plates 1 to 10, in Experiment 3, L * (1) and L * (2) calculated or set in the first data part and the second data part in this way ) (Both theoretical values). That is, in the test plates 1 to 10 for each θ in Experiment 3, the upper surface 51 is a gray color of L * “58” (average brightness), and the first inclined surface 53 is a gray color of L * (1) for each θ. Thus, the second inclined surface 55 is decorated with an inkjet recording apparatus using an ultraviolet curable ink so that the second inclined surface 55 becomes a gray color of L * (2) for each θ. The measured value of L * of the upper surface 51 thus decorated was 57.8, which was in a state that can be identified with the theoretical value. Similarly, the measured value of L * (1) of the first inclined surface 53 for each θ and the measured value of L * (2) of the second inclined surface 55 for each θ are as shown in Table 3, and are theoretical. It was in a state where it could be identified with the value. In the test plates 8 to 10 (θ is 60 ° or more), the measured value of L * (1) was constant at 1.9. In the test plates 8 to 10 (θ is 60 ° or more), the measured value of L * (2) was constant at 86.3. This difference is because “0” and “100” are theoretical values as described above.

The result of Experiment 3 is as shown in Table 3, and the three-dimensional effect of the convex portion 50 is emphasized with respect to the comparative plate in the test plates 3 to 10 (θ: 20 ° to 80 °). confirmed. Each of the test plates 3 to 10 relates to the above-described conditions ("L * (1) <L *" and Expression 1) regarding the decoration of the first inclined surface 53 and the decoration of the second inclined surface 55. The conditions (“L * <L * (2)” and Equation 2) are satisfied. The test plates 1 and 2 do not satisfy “L * <L * (2)” for both theoretical values and measured values.

<Experiment 4>
Experiment 4 is based on the following conditions. Regarding the inclination angles of the first inclined surface 53 and the second inclined surface 55, the test plates 1 to 12 in Experiment 4 are convex in which θ3 and θ4 (see FIG. 1C) are both 50 ° (absolute value). A shaped part 50 is formed. The base material 30 is a ceramic board. Regarding the decoration data used for decoration of the test plates 1 to 12, in Experiment 4, a gray color with L * (theoretical value) of 40 was set in the upper surface data portion. The measured value of L * of the upper surface 51 was 40.7, which was in a state where it could be identified with the theoretical value.

  In Experiment 4, test plates 1 to 12 having different levels of changing the brightness of the first inclined surface 53 and the second inclined surface 55 with the upper surface 51 as a reference were manufactured. Each of the test plates 1 to 3 is a test plate in which L * (1) and L * (2) are lower than L *. That is, the test plates 1 to 3 are test plates in which the first inclined surface 53 and the second inclined surface 55 have lower brightness than the upper surface 51. Each of the test plates 4 to 6 is a test plate in which L * (1) and L * (2) are higher than L *. That is, the test plates 4 to 6 are test plates in which the first inclined surface 53 and the second inclined surface 55 have higher brightness than the upper surface 51. The test plates 7 to 9 are test plates in which L * (1) is higher than L * and L * (2) is lower than L *. That is, the test plates 7 to 9 are test plates in which the first inclined surface 53 has higher brightness than the upper surface 51 and the second inclined surface 55 has lower brightness than the upper surface 51. The test plates 10 to 12 are test plates in which L * (1) is lower than L * and L * (2) is higher than L *. That is, the test plates 10 to 12 are test plates in which the first inclined surface 53 is lighter than the upper surface 51 and the second inclined surface 55 is higher in lightness than the upper surface 51, and “L * (1) <L The test plate satisfies “*” and “L * <L * (2)”. In addition, regarding the measured value difference (L * (1) −L *, L * (2) −L *) between the first inclined surface 53 and the second inclined surface 55 in Table 4, when the value is negative, The one inclined surface 53 or the second inclined surface 55 is lighter than the upper surface 51. When the value is positive, the first inclined surface 53 or the second inclined surface 55 has higher brightness than the upper surface 51.

The result of Experiment 4 is as shown in Table 4, and it was confirmed that the three-dimensional effect of the convex part 50 was emphasized with respect to the test plates 1 to 9 in the test plates 10 to 12.

<Discussion>
The decoration state of the convex part 50 in the test plate (building board 20) is the condition ("L * (1) <L *" and Formula 1) relating to the decoration of the first inclined surface 53, and the second inclined surface. By satisfying the condition (“L * <L * (2)” and Expression 2) for 55 decoration, it is possible to emphasize the stereoscopic effect of the convex portion 50 on the comparison plate. (See Experiment 1 to Experiment 3). In addition, when “L * (1) <L *” and “L * <L * (2)” are satisfied, this is not satisfied (see test plates 1 to 9 in Experiment 4). It was confirmed that the three-dimensional effect of the convex portion 50 can be emphasized (see Experiment 4). Therefore, the building board 20 that is in a decorative state so as to satisfy “L * (1) <L *” and “L * <L * (2)” is placed below the upper surface 51 in the vertical direction. If it attaches to a building so that the 1st inclined surface 53 may be arrange | positioned and the 2nd inclined surface 55 may be arrange | positioned on the same upper side, it is convex part 50 with respect to the observer who visually recognized the building board 20 (building). The three-dimensional effect can be emphasized.

  By the way, if it is based on the result of having evaluated the 1st inclined surface 53 and the 2nd inclined surface 55 separately like Experiment 2, the following construction board can also be specified. That is, a building board in which a convex portion is formed on the surface and the surface is decorated, wherein the convex portion is continuous with the top surface forming the top of the convex portion and the top surface, and the convex shape Inclined in a hem-spreading shape toward the base end side of the part, and in the attached state in which the building board is attached to the building, the first inclined surface disposed on the lower side in the vertical direction with respect to the upper surface, and A second inclined surface that is continuous with the upper surface, inclines toward the base end side of the convex portion, and in the attached state, and is disposed on the upper side in the vertical direction with respect to the upper surface. The first inclined surface is a building board that is decorated so that the lightness in the L * a * b * color system of JIS Z 8729: 2004 is lower than the upper surface. In this case, the lightness (L * (1)) of the first inclined surface may be set according to Equation 1 above while satisfying the above-described conditions.

  Moreover, it is the building board by which the convex part was formed in the surface, and the surface was decorated, Comprising: The said convex part is continuous with the upper surface which forms the top part of the said convex part, and the said upper surface, The said convex shape Inclined in a hem-spreading shape toward the base end side of the part, and in the attached state in which the building board is attached to the building, the first inclined surface disposed on the lower side in the vertical direction with respect to the upper surface, and A second inclined surface that is continuous with the upper surface, inclines toward the base end side of the convex portion, and in the attached state, and is disposed on the upper side in the vertical direction with respect to the upper surface. Said 2nd inclined surface can also be specified as a building board decorated so that the brightness in the L * a * b * color system of JIS Z 8729: 2004 may become high from the said upper surface. In this case, the lightness (L * (2)) of the second inclined surface may be set according to Equation 2 above while satisfying the above-described conditions.

  In addition, it can also be specified as a decoration method for the two building boards described above. The decoration method in this case can be performed by, for example, an ink jet recording apparatus, as described above. At this time, the upper surface data portion and the first data portion or the second data portion in which suitable brightness is set are used. Including decorative data is used. Also by such a building board or a decoration method, the three-dimensional effect of a convex part can be emphasized in a 1st inclined surface or a 2nd inclined surface.

<Modification>
This embodiment can also be performed as follows. In the above description, the configuration in which the first inclined surface 53 and the second inclined surface 55 are flat or planar surfaces has been described as an example. The first inclined surface 53 and the second inclined surface 55 may be curved surfaces as long as they are widened toward the base end 57. In this case, the above-described perpendicular lines (see “PL1” and “PL2” shown in FIG. 3) are defined as normals on the curved surface.

20 building board, 30 base material, 50 convex part 51 upper surface, 53 first inclined surface, 55 second inclined surface, 57 base end PL, PL1, PL2 perpendicular line

Claims (8)

Convex parts are formed on the surface, and the building board is decorated with a surface,
The convex portion is
A flat or planar upper surface forming the top of the convex portion;
Continuing on the upper surface, inclined toward the base end side of the convex portion so as to spread out at the bottom, and in a mounted state in which the building board is attached to a building, disposed below the upper surface in the vertical direction A planar or planar first inclined surface;
A flat or planar second continuous with the upper surface, inclined toward the base end side of the convex-shaped portion, and flared toward the base end side, and disposed on the upper side in the vertical direction with respect to the upper surface in the attached state. An inclined surface, and
Said first inclined surface, J IS Z 8729: lightness in 2004 L * a * b * color system, is decorated so that a first brightness value lower than the reference brightness value for the top surface,
It said second inclined surface, prior Symbol lightness, is decorated so that a second brightness value higher than the reference brightness value with respect to said top surface,
The convex portion is a boundary between the upper surface and the first inclined surface, the lightness changes from the reference lightness value to the first lightness value, and a boundary between the upper surface and the second inclined surface. the brightness Ru is the changed decoration state to the second brightness value from the reference brightness value, building board.   The building board according to claim 1, wherein the second inclined surface is decorated so that the brightness is 9 or more higher than the first inclined surface. A building including the building board according to claim 1 or 2,
The building board is attached in a state where the first inclined surface is disposed on the lower side in the vertical direction with respect to the upper surface, and the second inclined surface is disposed on the upper side in the vertical direction with respect to the upper surface. The building. A convex portion is formed on the surface, and the convex portion is continuous with the flat or planar upper surface forming the top of the convex portion and the upper surface, and toward the proximal end side of the convex portion. In a mounting state in which the building board is attached to the building , the flat or planar first inclined surface is disposed on the lower side in the vertical direction with respect to the upper surface, and is continuous with the upper surface. And a second inclined surface having a flat or planar shape that is inclined toward the base end side of the convex portion and is arranged on the upper side in the vertical direction with respect to the upper surface in the attached state; the containing, a surface of the base material of the building board a decorating method for decorating,
The includes a top surface, said first inclined surface, said second inclined surface, a decorative process for decorating the surface of the substrate including,
In the decoration process,
Said first inclined surface, J IS Z 8729: lightness in 2004 L * a * b * color system, is decorated so that a first brightness value lower than the reference brightness value for the top surface,
It said second inclined surface, prior Symbol lightness, is decorated so that a second brightness value higher than the reference brightness value with respect to said top surface,
The convex portion is a boundary between the upper surface and the first inclined surface, the lightness changes from the reference lightness value to the first lightness value, and a boundary between the upper surface and the second inclined surface. the brightness Ru is a decorative state changed to the second brightness value from the reference brightness value, decorating methods.   The said decorating process WHEREIN: The said 2nd inclined surface is a decoration method of Claim 4 decorated so that the said brightness becomes 9 or more higher than a said 1st inclined surface.   5. The decoration method according to claim 4, wherein, in the decoration step, the second inclined surface is decorated so that the brightness is 31 or more higher than the first inclined surface.   The decorating method according to any one of claims 4 to 6, wherein, in the decorating step, ink is ejected from an ink jet head included in the ink jet recording apparatus to decorate a surface of the base material. The decoration method is data for decorating the surface of the base material, and an upper surface data part for decorating the upper surface and a first data part for decorating the first inclined surface And a second data part for decorating the second inclined surface, and including an acquisition step of obtaining decoration data of a data structure including:
The decorating method according to claim 7, wherein in the decorating step, ink is ejected in accordance with the decorating data acquired in the acquiring step to decorate the surface of the base material.