JP2023131988A - High-design building material and ceiling material - Google Patents

Abstract

To provide a high-design ceiling material by making irregularity or shading of a ceiling material surface clearly visible.SOLUTION: A plurality of recessed grooves 3 and a plurality of projections 6 positioned among the recessed grooves are alternately arranged side by side on the surface 1a of a base material 1 of a ceiling material A1, A2. A first pattern 11 is formed in the inner surface of each recessed groove 3, and a second pattern 12 similar in hue to the first design 11 but brighter than that of the first design 11 is formed in the top surface 6a of each projection 6, both through ink-jet printing. A color difference ΔE between the first and second patterns 11 and 12 is ΔE=3-9.SELECTED DRAWING: Figure 3

Description

The present invention relates to highly designed architectural materials and ceiling materials.

Conventionally, as this type of building material, as shown in Patent Document 1, for example, a plurality of convex portions are formed side by side on the surface of a base material, and the top surface of some of the convex portions is formed into a concave surface with an arcuate cross section. On the other hand, a construction material has been proposed in which the top surfaces of other convex portions are made flat and a pattern is formed on the surface of the base material by inkjet printing.

With this construction material, in order to improve the design by inkjet printing, paint can be applied differently across the grooves between the convex parts.

JP 2015-140594 Publication

By the way, for example, in a ceiling material that is installed on the ceiling of a room, by forming a plurality of recesses by digging into the surface (the lower surface facing the room), it is possible to create an uneven feeling due to the recesses and the projections other than the recesses. This is preferable because a ceiling material with a high design quality can be obtained.

In that case, if the concave and convex parts are painted in the same color like a general ceiling material, the difference in level between them will be difficult to distinguish even though the concave and convex parts are formed, and the uneven part or shadow will appear. It may only appear as a flat pattern with no color, and this becomes noticeable on ceiling materials located far away from eye level.

If the depth of the recess is increased to increase the level difference between the convex part and the convex part, the level difference will become visible even from a distance. However, if the depth of the recess is increased, the thickness of the ceiling material becomes partially thinner at the bottom of the recess, reducing its strength, which may cause it to deform and warp due to moisture absorption, etc. after installation. Become.

The present invention has been made in view of the above, and its purpose is to improve the color of the pattern formed on the surface of not only ceiling materials with uneven surfaces, but also building materials without uneven surfaces. The purpose of the present invention is to improve the design of building materials by making the unevenness or shading on the surface of the building materials clearly visible.

In order to achieve the above object, the present invention focuses on the color difference in the uneven pattern formed on the surface, and creates a color difference in a predetermined range between the pattern part of the concave part and the pattern part of the convex part. This makes it possible to ensure a sense of unevenness.

Specifically, the first invention provides a highly designed construction material in which a surface pattern of the same hue is provided on the planar surface of a base material, and the surface pattern has a plurality of first pattern portions representing concave portions. , a plurality of second pattern portions representing convex portions are arranged in alternating lines, the brightness of the second pattern portion is higher than that of the first pattern portion, and the color difference between the first and second pattern portions is It is characterized in that ΔE is in the range of 3 to 9.

Further, the second invention provides a highly designed construction material in which a plurality of recesses and a plurality of projections are arranged alternately on the surface of the base material, and the first pattern part is also provided on the inner surface of the recess. A second pattern part having the same hue as the first pattern part and higher brightness than the first pattern part is provided on the top surface of each part, and the color difference ΔE between the first and second pattern part is ΔE=3. It is characterized by being in the range of ~9.

In the first and second inventions, the first and second pattern portions are provided on the surface of the base material of the highly designed building material, and although the pattern portions have the same hue, the second pattern portion as a recessed portion is provided with the first and second pattern portions. The brightness is higher than that of the first pattern portion as a convex portion, and the color difference ΔE between the first and second pattern portions is in the range of ΔE=3 to 9. From this, as in the first invention, a construction material in which the first and second pattern parts are formed on the planar surface of the base material, or as in the second invention, a concave part on the surface of the base material. In any of the construction materials, the first and second pattern parts are formed on the inner surface of the concave part and the top surface of the convex part, respectively. The first pattern part looks like a concave part due to the difference in brightness with respect to the second pattern part representing a convex part or the top surface of the convex part, and the difference in color difference ΔE in the range of ΔE=3 to 9; The second pattern portion looks like a convex portion compared to the first pattern portion. Therefore, even when a highly designed building material is viewed from a distance, the pattern on its surface exhibits a clear sense of unevenness or shading, and the unevenness can be clearly recognized visually. Therefore, even when forming uneven portions on the surface of the base material as in the second invention, it is not necessary to dig deep the recessed portions, thereby increasing the strength of the base material or highly designed building materials. can be secured to a large extent.

A third invention is the highly designed building material according to the second invention, characterized in that the recesses are grooves and the projections are ridges between the grooves.

In this third invention, for a highly designed construction material in which a plurality of grooves and a plurality of protrusions located between the grooves are arranged alternately on the surface of the base material, It is possible to clearly visually recognize the feeling of unevenness or shading due to the grooves and the protrusions without increasing the depth.

A fourth invention is the highly designed building material according to the second or third invention, characterized in that the deeper the depth of the recesses, the smaller the color difference. With this, a preferable roughness on the surface of the base material can be easily obtained.

A fifth invention is characterized in that in any one of the highly designed building materials of the first to fourth inventions, the first and second pattern parts are formed by inkjet printing.

In the fifth invention, ink of a necessary color can be applied separately to the first and second pattern portions on the surface of the base material by painting by inkjet printing. This makes it possible to easily express unevenness, shading, and material texture.

A sixth invention is the highly designed building material according to any one of the first to fifth inventions, characterized in that the base material has sound absorption performance.

In this sixth invention, since the base material of the highly designed building material has sound absorption performance, it is possible to easily obtain a highly designed building material with sound absorption performance that clearly shows the unevenness or shading on the surface.

A seventh invention relates to a ceiling material, and this ceiling material is characterized by being made of the highly designed building material according to any one of the first to sixth inventions. This makes it easy to obtain a ceiling material with a clear appearance of unevenness or shading on the surface.

As explained above, according to the present invention, a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions are alternately arranged on the surface of a building material, and the second pattern portion The brightness of the pattern is higher than that of the first pattern, and the color difference ΔE between the first and second pattern is within the range of ΔE = 3 to 9, so that the pattern on the surface of the building material is visible even when viewed from a distance. A clear sense of unevenness or shading is now exhibited, and the sense of unevenness can be clearly recognized visually, thereby improving the design. In particular, when forming uneven parts on the surface of the base material, it is not necessary to dig deep into the recessed parts, and it is possible to achieve a high design while ensuring the strength of the building material. .

FIG. 1 is a plan view of a ceiling material as a highly designed building material according to an embodiment of the present invention. FIG. 2 is a front view of the ceiling material. FIG. 3 is a plan view showing "Light", which has high brightness among ceiling material samples with small protrusions. FIG. 4 is a plan view showing "Medium", which has medium brightness among the samples. FIG. 5 is a plan view showing "Dark", which has low brightness among the samples. FIG. 6 is a diagram corresponding to FIG. 3 showing "Light", which has a high brightness among ceiling material samples with large protrusions. FIG. 7 is a diagram corresponding to FIG. 4 showing "Medium", which has a medium brightness among ceiling material samples with large protruding widths. FIG. 8 is a diagram corresponding to FIG. 5 showing "Dark", which has a low brightness among the ceiling material samples with large protrusions. FIG. 9 is a diagram showing the color characteristics of paints applied to three samples by inkjet printing. FIG. 10 is a diagram showing the color difference between paints applied to three samples. FIG. 11 is a photograph showing a sample of the ceiling material of the example. FIG. 12 is a photograph showing a sample of the ceiling material of Comparative Example 1. FIG. 13 is a photograph showing a sample of the ceiling material of Comparative Example 2.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following description of the embodiments is merely illustrative in nature and is in no way intended to limit the present invention, its applications, or its uses.

1 to 8 show two types of ceiling materials A1 and A2 (ceiling boards) as highly designed building materials according to embodiments of the present invention. Although not shown, each of the ceiling materials A1 and A2 is constructed so as to be placed, for example, in a space of a lattice structure formed by a main bar and a cross bar that are perpendicular to each other on the ceiling of the room.

As shown in FIGS. 1 and 2, each of the ceiling materials A1 and A2 includes a square plate-shaped base material 1 of, for example, 600 mm square. This base material 1 is made of, for example, a rock wool board having sound absorbing performance, and thus the ceiling materials A1 and A2 are sound absorbing ceiling materials.

The base material 1 is a plate material with a thickness of, for example, 15 mm, and the surface 1a that will be the bottom surface during construction is dug along the pair of opposing sides of the base material 1. A plurality of concave grooves 3, 3, . Protrusions 6, 6, . . . are provided. As a result, a plurality of grooves 3, 3, . . . (recesses) and a plurality of protrusions 6, 6, .

Specifically, the ceiling materials A1 shown in FIGS. 1 to 5 all have the same structure, and have 11 grooves 3, 3, ... and 12 protrusions 6, 6, on the surface 1a. ...is formed. On the other hand, FIGS. 6 to 8 also show a ceiling material A2 having the same structure, in which six grooves 3, 3, ... and six protrusions 6, 6, ... are formed on the surface 1a. .

Both the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 have the same structure of each groove 3. That is, as shown in FIG. 2, each groove 3 has a trapezoidal cross section whose groove width gradually decreases from the opening side toward the bottom 3a, and each protrusion 6 also has a trapezoidal cross section from the opening side to the bottom 3a side. It has a trapezoidal cross section whose width gradually increases from the bottom 3a side of the groove 3 toward the top surface 6a side (the opening side of the groove 3). As a result, the groove side surfaces on both sides of each groove 3, that is, the side surfaces on both sides of each protrusion 6, are not orthogonal surfaces perpendicular to the surface 1a of the base material 1, but are tapered surfaces inclined with respect to the orthogonal surfaces. There is. Further, the depth of each groove 3 is, for example, 3 mm, and the width of the bottom portion 3a of each groove 3 is, for example, 15.6 mm.

On the other hand, the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 differ in the number of grooves 3 dug in the surface 1a of the base material 1. Accordingly, the width of the top surface 6a (top surface) of each protrusion 6 is different, and the width of the top surface 6a of each protrusion 6 of the ceiling material A1 having the structure shown in FIGS. 1 to 5 is, for example, 32.2 mm. In contrast, the width of the top surface 6a of each protruding strip 6 of the ceiling material A2 having the structure shown in FIGS. 6 to 8 is wide, for example, 82.2 mm, which is larger than that of the ceiling material A1.

First and second pattern parts 11 and 12 are provided as a surface pattern 10 on the surface 1a of the base material 1 of each ceiling material A1 and A2 by inkjet printing, and the first pattern part 11 is formed inside each groove 3. The second pattern portion 12 is formed on the bottom 3a of the groove 3 or on the side surface of the groove, and the second pattern portion 12 is formed on the top surface 6a of each protrusion 6. The first pattern portion 11 formed inside each groove 3 and the second pattern portion 12 formed on the top surface 6a of each protrusion 6 have the same hue and similar color, but have different lightness. The brightness of the second pattern portion 12 on the top surface 6a of each convex strip 6 is higher than the brightness of the first pattern portion 11 in each groove 3, and has a bright color.

There is a color difference ΔE between the first pattern portion 11 and the second pattern portion 12, and the color difference ΔE is in the range of ΔE=3 to 9 (3≦ΔE≦9). If this color difference ΔE exceeds this range, the color difference will give an unnatural feeling, so it is necessary that ΔE is in the range of 3 to 9. The above color difference ΔE is defined as in the following equation.

ΔE={(ΔL ^* ) ² + (Δa ^* ) ² + (Δb ^* ) ² } ^1/2
ΔL ^* : Difference in index between black and white of the two pattern parts 11 and 12 Δa ^* : Difference in index between green and red of the two pattern parts 11 and 12 Δb ^* : Between blue and yellow of the two pattern parts 11 and 12 the difference between the indices of

For example, FIGS. 3 to 8 show samples of ceiling materials A1 and A2, both of which are 600 mm square plate materials. Ceiling material A1 shown in FIGS. 3 to 5 and ceiling material A2 shown in FIGS. 6 to 8. As mentioned above, the groove width of each groove 3 is the same, but the width of the protrusion 6 between the grooves 3 (the width of the top surface 6a) is different, and the ceiling material shown in FIGS. 6 to 8 The width of the protruding strip 6 of A2 is larger than that of the ceiling material A1 of FIGS. 3 to 5. Two types of samples with different widths of the ridges 6 are coated with “Light,” “Medium,” and “Dark,” which have different lightness (lightness of the entire sample) for each type, by inkjet printing. The brightness of the "Light" sample is greater than the "Medium" sample, and the brightness of the "Medium" sample is greater than the "Dark" sample (see FIG. 9). Moreover, by this coating, a first pattern part 11 is formed in the groove 3 of each sample, and a second pattern part 12 is formed in the top surface 6a of the protrusion 6, and as shown in FIG. The two pattern parts 11 and 12 have different color characteristics such as hue H, lightness V, saturation C, index L ^* between black and white, index a ^* between green and red, and index b ^* between blue and yellow. Brightness V is one of the color attributes, and is expressed as 10 for white (100% light reflectance) and 0 for black (0% light reflectance). Saturation C is also one of the color attributes, with an achromatic color being 0, and the value increasing as the proportion of tint increases. In addition, in FIG. 9, the top surface 6a of the protrusion 6 is described as a top surface.

The index L ^* (Elster) is an index that can take a range from 0 to 100, with "black" being 0 and "white" being 100. The index a ^* (Aster) is the index of "green" and "red" which are complementary colors. The index b ^* (Beastar) is an index that can range from -60 to +60, with "green" being -60 and "red" being +60. It is an index that can range from -60 to +60, with "blue" being -60 and "yellow" being +60.

At this time, as shown in FIG. 10, the difference ΔL* in the index L ^* between the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the protrusion 6, and the difference ΔL ^* in the index b ^* . The difference Δa ^* and the difference Δb ^* of the index b ^* are determined, and the color difference ΔE is obtained from these differences according to the above formula. Specifically, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is, for example, ΔE=7.45989 for the “Light” sample, ΔE=8.94986 for the “Medium” sample, and ΔE=8.94986 for the “Dark” sample. ” sample, ΔE=3.04302. As a result, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is in the range of ΔE=3 to 9. Moreover, as shown in FIG. 10, the color difference ΔE between the first and second pattern parts 11 and 12 becomes smaller as the overall brightness of the ceiling materials A1 and A2 due to both pattern parts 11 and 12 becomes lower. ing.

In this embodiment, the depth of the groove 3 is, for example, 3 mm, but the deeper the depth of the groove 3, the smaller the color difference ΔE is within the above range, and the preferable roughness of the surface of the base material 1 can be achieved. easily obtained.

Therefore, in this embodiment, a plurality of grooves 3, 3, ... and a plurality of protrusions 6, 6, ... located between them are arranged alternately on the surface 1a of the base material 1. For the ceiling materials A1 and A2, a first pattern portion 11 is provided inside each groove 3, and a second pattern portion 12 having the same hue as the first pattern portion 11 is provided on the top surface 6a of each protrusion 6. It is formed by coating, and both pattern parts 11 and 12 have the same hue, but the brightness of the second pattern part 12 in the groove 3 is higher than that of the first pattern part 11 on the top surface 6a of the convex strip 6, The color difference ΔE between the second pattern portions 11 and 12 is in the range of ΔE=3 to 9. From this, the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the convex strip 6 are clearly distinguished from each other, and the first pattern part 11 in the groove 3 is different from the convex part. With respect to the second pattern portion 12 of the top surface 6a of the strip 6, the difference in brightness and the difference in color difference ΔE in the range of ΔE=3 to 9 clearly make it look like the groove 3, and conversely, the second pattern The portion 12 appears as a protrusion 6 with respect to the first pattern portion 11. As a result, even when the ceiling materials A1 and A2 installed on the ceiling are viewed from a position away from the ceiling, for example, on the floor, the surface pattern 10 on the surface 1a has a clear sense of unevenness or shading. The unevenness can be clearly seen. Therefore, even if the ceiling materials A1 and A2 have a plurality of grooves 3, 3, ... formed by digging into the surface 1a of the base material 1, leaving protrusions 6, 6, ... between them, A clear sense of unevenness or shading can be visually recognized on the surface 1a without increasing the digging depth of the grooves 3, and even if the base material 1 is a rock wool board with sound absorption performance, the grooves 3 By reducing the depth, the strength of the ceiling materials A1 and A2 (base material 1) can be ensured to a large extent, and bending deformation due to moisture absorption etc. in the construction state can be suppressed. That is, by using the base material 1 such as a rock wool board that has sound absorbing performance, it is possible to easily obtain ceiling materials A1 and A2 that have sound absorbing performance and are difficult to bend and deform, in which the unevenness or shading of the surface 1a clearly appears. becomes.

Moreover, since the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by inkjet printing, the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by painting by this inkjet printing. 11 and 12 can be applied with the necessary colors of ink, making it possible to easily express unevenness, shading, and texture.

Furthermore, the color difference ΔE between the first and second pattern portions 11 and 12 decreases as the overall brightness of the ceiling materials A1 and A2 due to both pattern portions 11 and 12 decreases. Even if the brightness between the parts 11 and 12 changes, the color difference will also change within the range accordingly, making it difficult to stably express the unevenness or shading of the surfaces of the ceiling materials A1 and A2 described above. can.

(Other embodiments)
In the above embodiment, a plurality of grooves 3, 3, ... and protrusions 6, 6, ... are formed on the surface 1a of the base material 1, and the first pattern section 11 is formed on the inner surface of each groove 3. Although the second pattern portion 12 is provided on the top surface 6a of each protruding strip 6, it is not limited to the grooves 3 and the protruding strips 6, and the surface 1a of the base material 1 may include a plurality of concave portions and a plurality of convex portions. They may be arranged alternately, and the shapes of the concave portions and convex portions in plan view do not matter. The first pattern portion 11 may be provided on the inner surface of each concave portion, and the second pattern portion 12 may be provided on the top surface of each convex portion by inkjet printing.

Moreover, in order to form the first and second pattern parts 11 and 12, it is not essential to perform painting by inkjet printing, and they can also be formed by other printing methods or painting methods.

Furthermore, in the above embodiment, a plurality of grooves 3, 3, ... (concave portions) and protrusions 6, 6, ... (convex portions) are formed on the surface 1a of the base material 1, and a plurality of grooves 3, 3, ... (convex portions) are formed on the inner surface of each groove 3. Although the first pattern portion 11 and the second pattern portion 12 are provided on the top surface 6a of each protrusion 6, the base material 1 may be a flat surface without recesses and protrusions on the surface 1a. As a surface pattern 10, a plurality of first pattern parts 11, 11, ... representing concave parts and a plurality of second pattern parts 12, 12, ... representing convex parts are alternately lined up and painted on the plane surface 1a. At that time, the brightness of the second pattern part 12 may be made higher than that of the first pattern part 11, and the color difference ΔE between the first and second pattern parts 11 and 12 may be set in the range of ΔE=3 to 9. In this way, even without forming an uneven part on the surface 1a of the base material 1, a clear sense of unevenness or shadow can be obtained with only the first and second pattern parts 11 and 12 of the surface pattern 10. As a result, there is no need to process uneven parts, and highly designed building materials can be produced at low cost.

Further, in the above embodiments, the present invention is applied to ceiling materials A1 and A2 such as rock wool that have sound absorbing performance, but the present invention is applicable to ceiling materials that do not have sound absorbing performance or materials other than ceiling materials, such as It can be applied to other interior materials and construction materials, such as wall materials, to give them a highly designed appearance. Moreover, the material and type of the base material 1 are not limited either.

Next, an example specifically implemented by the present inventor will be described. As in the above embodiment, three ceiling material samples were prepared in which a plurality of grooves (depth: 3 mm) and protrusions extending parallel to each other on the surface of the base material were formed alternately at equal intervals. In one example, the width of the top surface of each protrusion was narrow, and in the other two comparative examples, the width of the top surface was wide. First and second pattern portions 11 and 12 were printed as a surface pattern on the surface of each sample by inkjet printing. By setting the brightness of the surface pattern of each sample to "Light" and changing the color difference ΔE between the first and second pattern parts 11 and 12, "Example", "Comparative Example 1" and "Comparative Example 2" was created. A photograph of Example 1 is shown in FIG. 11, a photograph of Comparative Example 1 is shown in FIG. 12, and a photograph of Comparative Example 2 is shown in FIG. 13.

(Example)
The color difference ΔE between the first and second pattern portions 11 and 12 was within the range specified in the present invention (3≦ΔE≦9).

(Comparative example 1)
The color difference ΔE between both pattern parts 11 and 12 was ΔE=about 1 (ΔE<3).

(Comparative example 2)
This is an example in which the color difference ΔE between both pattern parts 11 and 12 is larger than ΔE=9 (ΔE>9).

When we observed the surface unevenness of these Examples and Comparative Examples 1 and 2, we found that in Comparative Example 1, where the color difference ΔE between the pattern parts 11 and 12 was smaller than 3, the difference in the uneven parts was not significant, as shown in FIG. On the other hand, in the example, the difference in the uneven portions is clear as shown in FIG. 11. On the other hand, when the color difference ΔE between the pattern portions 11 and 12 is larger than 9 as in Comparative Example 2, the difference between the uneven portions becomes noticeable and an unnatural feeling occurs, as shown in FIG.

As a result, if the color difference ΔE between the first and second pattern parts 11 and 12 is in the range of ΔE=3 to 9, the unevenness can be clearly recognized visually without increasing the digging depth of the recesses. It was clear that the design could be improved.

INDUSTRIAL APPLICABILITY The present invention is extremely useful and has industrial applications because the pattern on the surface of a building material exhibits a clear unevenness or shading, and the unevenness can be clearly recognized visually to improve the design. Probability is high.

A1, A2 Ceiling material (highly designed architectural material)
1 Base material 1a Surface 3 Concave groove (concavity)
6 Protrusions (protrusions)
6a Top surface 10 Surface pattern 11 First pattern portion 12 Second pattern portion

The present invention relates to highly designed architectural materials and ceiling materials.

Conventionally, as this type of building material, as shown in Patent Document 1, for example, a plurality of convex portions are formed side by side on the surface of a base material, and the top surface of some of the convex portions is formed into a concave surface with an arcuate cross section. On the other hand, a construction material has been proposed in which the top surfaces of other convex portions are made flat and a pattern is formed on the surface of the base material by inkjet printing.

With this construction material, in order to improve the design by inkjet printing, paint can be applied differently across the grooves between the convex parts.

JP 2015-140594 Publication

By the way, for example, in a ceiling material that is installed on the ceiling of a room, by forming a plurality of recesses by digging into the surface (the lower surface facing the room), it is possible to create an uneven feeling due to the recesses and the projections other than the recesses. This is preferable because a ceiling material with a high design quality can be obtained.

In that case, if the concave and convex parts are painted in the same color like a general ceiling material, the difference in level between them will be difficult to distinguish even though the concave and convex parts are formed, and the uneven part or shadow will appear. It may only appear as a flat pattern with no color, and this becomes noticeable on ceiling materials located far away from eye level.

If the depth of the recess is increased to increase the level difference between the convex part and the convex part, the level difference will become visible even from a distance. However, if the depth of the recess is increased, the thickness of the ceiling material becomes partially thinner at the bottom of the recess, reducing its strength, which may cause it to deform and warp due to moisture absorption, etc. after installation. Become.

The present invention has been made in view of the above, and its purpose is to improve the color of the pattern formed on the surface of not only ceiling materials with uneven surfaces, but also building materials without uneven surfaces. The purpose of the present invention is to improve the design of building materials by making the unevenness or shading on the surface of the building materials clearly visible.

In order to achieve the above object, the present invention focuses on the color difference in the uneven pattern formed on the surface, and creates a color difference in a predetermined range between the pattern part of the concave part and the pattern part of the convex part. This makes it possible to ensure a sense of unevenness.

Specifically, the first invention provides a highly designed construction material in which a planar surface pattern of the same hue and without irregularities is provided by painting on the planar surface of a base material having a constant overall thickness. The planar surface pattern is one in which a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions are alternately arranged, and the second pattern The brightness of the portion is higher than that of the first pattern portion, and the color difference ΔE between the first and second pattern portions is in the range of ΔE=3 to 9.

Further , the second invention provides a plurality of recesses having a bottom and an inclined side surface over the entire surface including the center of the surface of the base material, the bottoms of which are located at the same height position, and a plurality of recesses which are located at the same height position. A highly designed construction material in which a plurality of convex portions each having a surface are arranged in an alternating line, the concave portion having a first pattern on the bottom and side surfaces , and the top surface of the convex portion having a first pattern. A second pattern portion having the same hue as the first pattern portion and a higher brightness than the first pattern portion is provided by painting , and the color difference ΔE between the first and second pattern portions is in the range of ΔE = 3 to 9. Features.

In the first and second inventions, the first and second pattern portions are provided on the surface of the base material of the highly designed building material, and although the pattern portions have the same hue, the second pattern portion as a recessed portion is provided with the first and second pattern portions. The brightness is higher than that of the first pattern portion as a convex portion, and the color difference ΔE between the first and second pattern portions is in the range of ΔE=3 to 9. From this, as in the first invention, a construction material in which planar first and second pattern parts without irregularities are formed by painting on a planar surface of a base material having a constant overall thickness ; Alternatively, as in the second invention, the first pattern portion is painted on the bottom and side surfaces of the concave portion on the surface of the base material at the same height position, and the second pattern portion is painted on the top surface of the convex portion at the same height position. In any of the construction materials formed by The difference in brightness with respect to the pattern part and the difference in color difference ΔE in the range of ΔE = 3 to 9 make it look like a concave part, and conversely, the second pattern part looks like a convex part with respect to the first pattern part. becomes. Therefore, even when a highly designed building material is viewed from a distance, the pattern on its surface exhibits a clear sense of unevenness or shading, and the unevenness can be clearly recognized visually. Therefore, even when forming uneven portions on the surface of the base material as in the second invention, it is not necessary to dig deep into the recessed portions, thereby increasing the strength of the base material or highly designed building materials. can be secured to a large extent.

A third invention is the highly designed building material according to the second invention, characterized in that the recesses are grooves and the projections are ridges between the grooves.

In this third invention, for a highly designed construction material in which a plurality of grooves and a plurality of protrusions located between the grooves are arranged alternately on the surface of the base material, It is possible to clearly visually recognize the feeling of unevenness or shading due to the grooves and the protrusions without increasing the depth .

A fourth invention is characterized in that in any one of the highly designed building materials of the first to third inventions, the first and second pattern parts are formed by inkjet printing.

In the fourth aspect of the invention, ink of a necessary color can be separately applied to the first and second pattern portions on the surface of the base material by painting by inkjet printing. This makes it possible to easily express unevenness, shading, and material texture.

A fifth invention is the highly designed building material according to any one of the first to fourth inventions, characterized in that the base material has sound absorption performance.

In this fifth invention, since the base material of the highly designed building material has sound absorption performance, it is possible to easily obtain a highly designed building material with sound absorption performance that clearly shows the unevenness or shading on the surface.

A sixth invention relates to a ceiling material, and this ceiling material is characterized by being made of the highly designed building material according to any one of the first to fifth inventions. This makes it easy to obtain a ceiling material with a clear appearance of unevenness or shading on the surface.

As explained above, the first invention is a highly designed building material in which a planar surface pattern of the same hue and no irregularities is provided by painting on the planar surface of a base material having a constant overall thickness. The planar surface pattern was such that a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions were alternately arranged. Further, in the second invention, a plurality of recesses having a bottom and an inclined side surface are provided over the entire surface of the base material including the central part, and the bottoms are located at the same height position, and a plurality of recesses are located at the same height position. As a highly designed construction material in which a plurality of convex portions each having a surface are alternately arranged side by side, a first pattern portion is provided on the bottom and side surfaces of the concave portion, and the same pattern as the first pattern portion is provided on the top surface of the convex portion. The second pattern portions each having a hue were provided by painting. In the first and second inventions, the brightness of the second pattern part is made higher than that of the first pattern part, and the color difference ΔE between the first and second pattern parts is set in the range of ΔE=3 to 9 . As a result, even when viewed from a distance, the pattern on the surface of the building material exhibits a clear sense of unevenness or shading, and the sense of unevenness can be clearly recognized visually to improve the design. In particular, when forming uneven parts on the surface of the base material, it is not necessary to dig deep into the recessed parts, and it is possible to achieve a high design while ensuring the strength of the building material. .

FIG. 1 is a plan view of a ceiling material as a highly designed building material according to an embodiment of the present invention. FIG. 2 is a front view of the ceiling material. FIG. 3 is a plan view showing "Light", which has high brightness among ceiling material samples with small protrusions. FIG. 4 is a plan view showing "Medium", which has medium brightness among the samples. FIG. 5 is a plan view showing "Dark", which has low brightness among the samples. FIG. 6 is a diagram corresponding to FIG. 3 showing "Light", which has a high brightness among ceiling material samples with large protrusions. FIG. 7 is a diagram corresponding to FIG. 4 showing "Medium", which has a medium brightness among ceiling material samples with large protruding widths. FIG. 8 is a diagram corresponding to FIG. 5 showing "Dark", which has a low brightness among the ceiling material samples with large protrusions. FIG. 9 is a diagram showing the color characteristics of paints applied to three samples by inkjet printing. FIG. 10 is a diagram showing the color difference between paints applied to three samples. FIG. 11 is a photograph showing a sample of the ceiling material of the example. FIG. 12 is a photograph showing a sample of the ceiling material of Comparative Example 1. FIG. 13 is a photograph showing a sample of the ceiling material of Comparative Example 2.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following description of the embodiments is merely illustrative in nature and is in no way intended to limit the present invention, its applications, or its uses.

1 to 8 show two types of ceiling materials A1 and A2 (ceiling boards) as highly designed building materials according to embodiments of the present invention. Although not shown, each of the ceiling materials A1 and A2 is constructed so as to be placed, for example, in a space of a lattice structure formed by a main bar and a cross bar that are perpendicular to each other on the ceiling of the room.

As shown in FIGS. 1 and 2, each of the ceiling materials A1 and A2 includes a square plate-shaped base material 1 of, for example, 600 mm square. This base material 1 is made of, for example, a rock wool board having sound absorbing performance, and thus the ceiling materials A1 and A2 are sound absorbing ceiling materials.

The base material 1 is a plate material with a thickness of, for example, 15 mm, and the surface 1a that will be the bottom surface during construction is dug along the pair of opposing sides of the base material 1. A plurality of concave grooves 3, 3, . Protrusions 6, 6, . . . are provided. As a result, a plurality of grooves 3, 3, . . . (recesses) and a plurality of protrusions 6, 6, .

Specifically, the ceiling materials A1 shown in FIGS. 1 to 5 all have the same structure, and have 11 grooves 3, 3, ... and 12 protrusions 6, 6, on the surface 1a. ...is formed. On the other hand, FIGS. 6 to 8 also show a ceiling material A2 having the same structure, in which six grooves 3, 3, ... and six protrusions 6, 6, ... are formed on the surface 1a. .

Both the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 have the same structure of each groove 3. That is, as shown in FIG. 2, each groove 3 has a trapezoidal cross section whose groove width gradually decreases from the opening side toward the bottom 3a, and each protrusion 6 also has a trapezoidal cross section from the opening side to the bottom 3a side. It has a trapezoidal cross section whose width gradually increases from the bottom 3a side of the groove 3 toward the top surface 6a side (the opening side of the groove 3). As a result, the groove side surfaces on both sides of each groove 3, that is, the side surfaces on both sides of each protrusion 6, are not orthogonal surfaces perpendicular to the surface 1a of the base material 1, but are tapered surfaces inclined with respect to the orthogonal surfaces. There is. Further, the depth of each groove 3 is, for example, 3 mm, and the width of the bottom portion 3a of each groove 3 is, for example, 15.6 mm.

On the other hand, the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 differ in the number of grooves 3 dug in the surface 1a of the base material 1. Accordingly, the width of the top surface 6a (top surface) of each protrusion 6 is different, and the width of the top surface 6a of each protrusion 6 of the ceiling material A1 having the structure shown in FIGS. 1 to 5 is, for example, 32.2 mm. In contrast, the width of the top surface 6a of each protruding strip 6 of the ceiling material A2 having the structure shown in FIGS. 6 to 8 is wide, for example, 82.2 mm, which is larger than that of the ceiling material A1.

First and second pattern parts 11 and 12 are provided as a surface pattern 10 on the surface 1a of the base material 1 of each ceiling material A1 and A2 by inkjet printing, and the first pattern part 11 is formed inside each groove 3. The second pattern portion 12 is formed on the bottom 3a of the groove 3 or on the side surface of the groove, and the second pattern portion 12 is formed on the top surface 6a of each protrusion 6. The first pattern portion 11 formed inside each groove 3 and the second pattern portion 12 formed on the top surface 6a of each protrusion 6 have the same hue and similar color, but have different lightness. The brightness of the second pattern portion 12 on the top surface 6a of each convex strip 6 is higher than the brightness of the first pattern portion 11 in each groove 3, and has a bright color.

There is a color difference ΔE between the first pattern portion 11 and the second pattern portion 12, and the color difference ΔE is in the range of ΔE=3 to 9 (3≦ΔE≦9). If this color difference ΔE exceeds this range, the color difference will give an unnatural feeling, so it is necessary that ΔE is in the range of 3 to 9. The above color difference ΔE is defined as in the following equation.

ΔE={(ΔL ^* ) ² + (Δa ^* ) ² + (Δb ^* ) ² } ^1/2
ΔL ^* : Difference in index between black and white of the two pattern parts 11 and 12 Δa ^* : Difference in index between green and red of the two pattern parts 11 and 12 Δb ^* : Between blue and yellow of the two pattern parts 11 and 12 For example, FIGS. 3 to 8 show samples of ceiling materials A1 and A2 that are both 600 mm square plate materials, and ceiling materials A1 shown in FIGS. 3 to 5 and The ceiling material A2 shown has the same groove width of each groove 3 as described above, but differs in the width of the protrusion 6 between the grooves 3 (width of the top surface 6a), and is different from that shown in FIGS. The width of the ridges 6 of the ceiling material A2 of No. 8 is larger than that of the ceiling material A1 of FIGS. 3 to 5. Two types of samples with different widths of the ridges 6 are coated with “Light,” “Medium,” and “Dark,” which have different lightness (lightness of the entire sample) for each type, by inkjet printing. The brightness of the "Light" sample is greater than the "Medium" sample, and the brightness of the "Medium" sample is greater than the "Dark" sample (see FIG. 9). Moreover, by this coating, a first pattern part 11 is formed in the groove 3 of each sample, and a second pattern part 12 is formed in the top surface 6a of the protrusion 6, and as shown in FIG. The two pattern parts 11 and 12 have different color characteristics such as hue H, lightness V, saturation C, index L ^* between black and white, index a ^* between green and red, and index b ^* between blue and yellow. Brightness V is one of the color attributes, and is expressed as 10 for white (100% light reflectance) and 0 for black (0% light reflectance). Saturation C is also one of the color attributes, with an achromatic color being 0, and the value increasing as the proportion of tint increases. In addition, in FIG. 9, the top surface 6a of the protrusion 6 is described as a top surface.

The index L ^* (Elster) is an index that can take a range from 0 to 100, with "black" being 0 and "white" being 100. The index a ^* (Aster) is the index of "green" and "red" which are complementary colors. The index b ^* (Beastar) is an index that can range from -60 to +60, with "green" being -60 and "red" being +60. It is an index that can range from -60 to +60, with "blue" being -60 and "yellow" being +60.

At this time, as shown in FIG. 10, the difference ΔL* in the index L ^* between the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the protrusion 6, and the difference ΔL ^* in the index b ^* . The difference Δa ^* and the difference Δb ^* of the index b ^* are determined, and the color difference ΔE is obtained from these differences according to the above formula. Specifically, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is, for example, ΔE=7.45989 for the “Light” sample, ΔE=8.94986 for the “Medium” sample, and ΔE=8.94986 for the “Dark” sample. ” sample, ΔE=3.04302. As a result, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is in the range of ΔE=3 to 9. Moreover, as shown in FIG. 10, the color difference ΔE between the first and second pattern parts 11 and 12 becomes smaller as the overall brightness of the ceiling materials A1 and A2 due to both pattern parts 11 and 12 becomes lower. ing.

In this embodiment, the depth of the groove 3 is, for example, 3 mm, but the deeper the depth of the groove 3, the smaller the color difference ΔE is within the above range, and the preferable roughness of the surface of the base material 1 can be achieved. easily obtained.

Therefore, in this embodiment, a plurality of grooves 3, 3, ... and a plurality of protrusions 6, 6, ... located between them are arranged alternately on the surface 1a of the base material 1. For the ceiling materials A1 and A2, a first pattern portion 11 is provided inside each groove 3, and a second pattern portion 12 having the same hue as the first pattern portion 11 is provided on the top surface 6a of each protrusion 6. It is formed by coating, and both pattern parts 11 and 12 have the same hue, but the brightness of the second pattern part 12 in the groove 3 is higher than that of the first pattern part 11 on the top surface 6a of the convex strip 6, The color difference ΔE between the second pattern portions 11 and 12 is in the range of ΔE=3 to 9. From this, the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the convex strip 6 are clearly distinguished from each other, and the first pattern part 11 in the groove 3 is different from the convex part. With respect to the second pattern portion 12 of the top surface 6a of the strip 6, the difference in brightness and the difference in color difference ΔE in the range of ΔE=3 to 9 clearly make it look like the groove 3, and conversely, the second pattern The portion 12 appears as a protrusion 6 with respect to the first pattern portion 11. As a result, even when the ceiling materials A1 and A2 installed on the ceiling are viewed from a position away from the ceiling, for example, on the floor, the surface pattern 10 on the surface 1a has a clear sense of unevenness or shading. The unevenness can be clearly seen. Therefore, even if the ceiling materials A1 and A2 have a plurality of grooves 3, 3, ... formed by digging into the surface 1a of the base material 1, leaving protrusions 6, 6, ... between them, A clear sense of unevenness or shading can be visually recognized on the surface 1a without increasing the digging depth of the grooves 3, and even if the base material 1 is a rock wool board with sound absorption performance, the grooves 3 By reducing the depth, the strength of the ceiling materials A1 and A2 (base material 1) can be ensured to a large extent, and bending deformation due to moisture absorption etc. in the construction state can be suppressed. That is, by using the base material 1 such as a rock wool board that has sound absorbing performance, it is possible to easily obtain ceiling materials A1 and A2 that have sound absorbing performance and are difficult to bend and deform, in which the unevenness or shading of the surface 1a clearly appears. becomes.

Moreover, since the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by inkjet printing, the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by painting by this inkjet printing. 11 and 12 can be applied with the necessary colors of ink, making it possible to easily express unevenness, shading, and texture.

Furthermore, the color difference ΔE between the first and second pattern portions 11 and 12 decreases as the overall brightness of the ceiling materials A1 and A2 due to both pattern portions 11 and 12 decreases. Even if the brightness between the parts 11 and 12 changes, the color difference will also change within the range accordingly, making it difficult to stably express the unevenness or shading of the surfaces of the ceiling materials A1 and A2 described above. can.

(Other embodiments)
In the above embodiment, a plurality of grooves 3, 3, ... and protrusions 6, 6, ... are formed on the surface 1a of the base material 1, and the first pattern section 11 is formed on the inner surface of each groove 3. Although the second pattern portion 12 is provided on the top surface 6a of each protruding strip 6, it is not limited to the grooves 3 and the protruding strips 6, and the surface 1a of the base material 1 may include a plurality of concave portions and a plurality of convex portions. They may be arranged alternately, and the shapes of the concave portions and convex portions in plan view do not matter. The first pattern portion 11 may be provided on the inner surface of each concave portion, and the second pattern portion 12 may be provided on the top surface of each convex portion by inkjet printing.

Moreover, in order to form the first and second pattern parts 11 and 12, it is not essential to perform painting by inkjet printing, and they can also be formed by other printing methods or painting methods.

Furthermore, in the above embodiment, a plurality of grooves 3, 3, ... (concave portions) and protrusions 6, 6, ... (convex portions) are formed on the surface 1a of the base material 1, and a plurality of grooves 3, 3, ... (convex portions) are formed on the inner surface of each groove 3. Although the first pattern portion 11 and the second pattern portion 12 are provided on the top surface 6a of each protrusion 6, the base material 1 may be a flat surface without recesses and protrusions on the surface 1a. As a surface pattern 10, a plurality of first pattern parts 11, 11, ... representing concave parts and a plurality of second pattern parts 12, 12, ... representing convex parts are alternately lined up and painted on the plane surface 1a. At that time, the brightness of the second pattern part 12 may be made higher than that of the first pattern part 11, and the color difference ΔE between the first and second pattern parts 11 and 12 may be set in the range of ΔE=3 to 9. In this way, even without forming an uneven part on the surface 1a of the base material 1, a clear sense of unevenness or shadow can be obtained with only the first and second pattern parts 11 and 12 of the surface pattern 10. As a result, there is no need to process irregularities, and highly designed building materials can be produced at low cost.

Further, in the above embodiments, the present invention is applied to ceiling materials A1 and A2 such as rock wool that have sound absorbing performance, but the present invention is applicable to ceiling materials that do not have sound absorbing performance or materials other than ceiling materials, such as It can be applied to other interior materials and construction materials, such as wall materials, to give them a highly designed appearance. Moreover, the material and type of the base material 1 are not limited either.

Next, an example specifically implemented by the present inventor will be described. As in the above embodiment, three ceiling material samples were prepared in which a plurality of grooves (depth: 3 mm) and protrusions extending parallel to each other on the surface of the base material were formed alternately at equal intervals. In one example, the width of the top surface of each protrusion was narrow, and in the other two comparative examples, the width of the top surface was wide. First and second pattern parts 11 and 12 were printed as a surface pattern on the surface of each sample by inkjet printing. By setting the brightness of the surface pattern of each sample to "Light" and changing the color difference ΔE between the first and second pattern parts 11 and 12, "Example", "Comparative Example 1" and "Comparative Example 2" was created. A photograph of Example 1 is shown in FIG. 11, a photograph of Comparative Example 1 is shown in FIG. 12, and a photograph of Comparative Example 2 is shown in FIG. 13.

(Example)
The color difference ΔE between the first and second pattern portions 11 and 12 was within the range specified in the present invention (3≦ΔE≦9).

(Comparative example 1)
The color difference ΔE between both pattern parts 11 and 12 was ΔE=about 1 (ΔE<3).

(Comparative example 2)
This is an example in which the color difference ΔE between both pattern parts 11 and 12 is larger than ΔE=9 (ΔE>9).

When we observed the surface unevenness of these Examples and Comparative Examples 1 and 2, we found that in Comparative Example 1, where the color difference ΔE between the pattern parts 11 and 12 was smaller than 3, the difference in the uneven parts was not significant, as shown in FIG. On the other hand, in the example, the difference in the uneven portions is clear as shown in FIG. 11. On the other hand, when the color difference ΔE between the pattern portions 11 and 12 is larger than 9 as in Comparative Example 2, the difference between the uneven portions becomes noticeable and an unnatural feeling occurs, as shown in FIG.

As a result, if the color difference ΔE between the first and second pattern parts 11 and 12 is in the range of ΔE=3 to 9, the unevenness can be clearly recognized visually without increasing the digging depth of the recesses. It was clear that the design could be improved.

INDUSTRIAL APPLICABILITY The present invention is extremely useful and has industrial applications because the pattern on the surface of a building material exhibits a clear unevenness or shading, and the unevenness can be clearly recognized visually to improve the design. Probability is high.

A1, A2 Ceiling material (highly designed architectural material)
1 Base material 1a Surface 3 Concave groove (concavity)
6 Protrusions (protrusions)
6a Top surface 10 Surface pattern 11 First pattern portion 12 Second pattern portion

The present invention relates to highly designed architectural materials and ceiling materials.

Conventionally, as this type of building material, as shown in Patent Document 1, for example, a plurality of convex portions are formed side by side on the surface of a base material, and the top surface of some of the convex portions is formed into a concave surface with an arcuate cross section. On the other hand, a construction material has been proposed in which the top surfaces of other convex portions are made flat and a pattern is formed on the surface of the base material by inkjet printing.

With this construction material, in order to improve the design by inkjet printing, paint can be applied differently across the grooves between the convex parts.

Japanese Patent Application Publication No. 2015-140594

By the way, for example, in a ceiling material that is installed on the ceiling of a room, by forming a plurality of recesses by digging into the surface (the lower surface facing the room), it is possible to create an uneven feeling due to the recesses and the projections other than the recesses. This is preferable because a ceiling material with a high design quality can be obtained.

In that case, if the concave and convex parts are painted in the same color like a general ceiling material, the difference in level between them will be difficult to distinguish even though the concave and convex parts are formed, and the uneven part or shadow will appear. It may only appear as a flat pattern with no color, and this becomes noticeable on ceiling materials located far away from eye level.

If the depth of the recess is increased to increase the level difference between the convex part and the convex part, the level difference will become visible even from a distance. However, if the depth of the recess is increased, the thickness of the ceiling material becomes partially thinner at the bottom of the recess, reducing its strength, which may cause it to deform and warp due to moisture absorption, etc. after installation. Become.

The present invention has been made in view of the above, and its purpose is to improve the color of the pattern formed on the surface of not only ceiling materials with uneven surfaces, but also building materials without uneven surfaces. The purpose of the present invention is to improve the design of building materials by making the unevenness or shading on the surface of the building materials clearly visible.

In order to achieve the above object, the present invention focuses on the color difference in the uneven pattern formed on the surface, and creates a color difference in a predetermined range between the pattern part of the concave part and the pattern part of the convex part. This makes it possible to ensure a sense of unevenness.

Specifically, the first invention provides a highly designed construction material in which a planar surface pattern of the same hue and without irregularities is provided by painting on the planar surface of a base material having a constant overall thickness. The planar surface pattern is one in which a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions are alternately arranged, and the second pattern The brightness of the portion is higher than that of the first pattern portion, and the color difference ΔE between the first and second pattern portions is in the range of ΔE=3 to 9.

Further, the second invention provides a plurality of grooves extending parallel to each other over the entire surface of the base material including the central part, and a plurality of protrusions located between the plurality of grooves and extending parallel to each other. are arranged in alternating rows, and the grooves have a trapezoidal cross section with a planar bottom surface and slanted side surfaces, and the groove width decreases from the opening side toward the bottom surface. and the bottom surfaces are located at the same height, and the protruding strip has a trapezoidal cross-section with a planar top surface located at the same height and whose width decreases from the base side toward the top surface. has been done. A first pattern portion is provided on the bottom and side surfaces of each concave strip , and a second pattern portion having the same hue as the first pattern portion and higher brightness than the first pattern portion is provided on the top surface of each convex strip. are provided by painting so that the color difference ΔE between the first and second pattern portions is in the range of ΔE=3 to 9 .

In the first and second inventions, the first and second pattern portions are provided on the surface of the base material of the highly designed building material, and although the pattern portions have the same hue, they represent recesses or grooves. The brightness of the second pattern portion located on the bottom and side surfaces is higher than that of the first pattern portion representing a convex portion or located on the top surface of the protrusion , and the color difference ΔE between the first and second pattern portions is ΔE = 3. It is in the range of ~9. From this, as in the first invention, a construction material in which planar first and second pattern parts without irregularities are formed by painting on a planar surface of a base material having a constant overall thickness; Alternatively, as in the second invention, a plurality of grooves and a plurality of protrusions located between the grooves are arranged alternately on the surface of the base material, and the same grooves on the surface of the base material Any construction material in which the first pattern is formed by painting on the planar bottom and side surfaces at the same height, and the second pattern is formed on the planar top surface at the same height of the protrusion. , these two pattern parts are clearly distinguished, and the first pattern part representing the recess or the inner surface of the groove has a difference in brightness with respect to the second pattern part representing the convex part or the top surface of the convex groove , and ΔE= Depending on the difference in color difference ΔE in the range of 3 to 9, it looks like a concave part, and conversely, the second pattern part looks like a convex part compared to the first pattern part. Therefore, even when a highly designed building material is viewed from a distance, the pattern on its surface exhibits a clear sense of unevenness or shading, and the unevenness can be clearly recognized visually. Therefore, even when grooves and protrusions are formed on the surface of the base material, as in the second invention, the depth of the grooves does not need to be increased. It is possible to clearly see the feeling of unevenness or shading due to the grooves and protrusions without increasing the height, and the strength of the base material or highly designed building material can be ensured to a large extent .

A third invention is characterized in that in the highly designed building material of the first or second invention, the first and second pattern parts are formed by inkjet printing.

In the third aspect of the invention, ink of a necessary color can be applied to the first and second pattern portions on the surface of the base material by coating by inkjet printing. This makes it possible to easily express unevenness, shading, and material texture.

A fourth invention is the highly designed building material according to any one of the first to third inventions, characterized in that the base material has sound absorption performance.

In this fourth invention, since the base material of the highly designed building material has sound absorption performance, it is possible to easily obtain a highly designed construction material having sound absorption performance that clearly shows the unevenness or shading on the surface.

A fifth invention relates to a ceiling material, and this ceiling material is characterized by being made of the highly designed building material according to any one of the first to fourth inventions. This makes it easy to obtain a ceiling material with a clear appearance of unevenness or shading on the surface.

As explained above, the first invention is a highly designed building material in which a planar surface pattern of the same hue and no irregularities is provided by painting on the planar surface of a base material having a constant overall thickness. The planar surface pattern was such that a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions were alternately arranged. Further, in the second invention, a plurality of concave grooves having a trapezoidal cross section, which have a bottom surface and an inclined side surface, and whose bottom surfaces are located at the same height position, extend over the entire surface of the base material including the central part, and As a highly designed construction material in which a plurality of protrusions having a trapezoidal cross section and having top surfaces at height positions are arranged alternately and parallel to each other , the first pattern part is also protruded on the bottom and side surfaces of the groove. A second pattern portion having the same hue as the first pattern portion was provided on the top surface of each strip by painting. In the first and second inventions, the brightness of the second pattern part is made higher than that of the first pattern part, and the color difference ΔE between the first and second pattern parts is set in the range of ΔE=3 to 9. As a result, even when viewed from a distance, the pattern on the surface of the building material exhibits a clear sense of unevenness or shading, and the sense of unevenness can be clearly seen to improve the design. In particular, when forming grooves and protrusions on the surface of the base material, there is no need to deepen the depth of the grooves , achieving a high design while ensuring the strength of the building material. can do.

FIG. 1 is a plan view of a ceiling material as a highly designed building material according to an embodiment of the present invention. FIG. 2 is a front view of the ceiling material. FIG. 3 is a plan view showing "Light", which has high brightness among ceiling material samples with small protrusions. FIG. 4 is a plan view showing "Medium", which has medium brightness among the samples. FIG. 5 is a plan view showing "Dark", which has low brightness among the samples. FIG. 6 is a diagram corresponding to FIG. 3 showing "Light", which has a high brightness among ceiling material samples with large protrusions. FIG. 7 is a diagram corresponding to FIG. 4 showing "Medium", which has a medium brightness among ceiling material samples with large protruding widths. FIG. 8 is a diagram corresponding to FIG. 5 showing "Dark", which has a low brightness among the ceiling material samples with large protrusions. FIG. 9 is a diagram showing the color characteristics of paints applied to three samples by inkjet printing. FIG. 10 is a diagram showing the color difference between paints applied to three samples. FIG. 11 is a photograph showing a sample of the ceiling material of the example. FIG. 12 is a photograph showing a sample of the ceiling material of Comparative Example 1. FIG. 13 is a photograph showing a sample of the ceiling material of Comparative Example 2.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following description of the embodiments is merely illustrative in nature and is in no way intended to limit the present invention, its applications, or its uses.

1 to 8 show two types of ceiling materials A1 and A2 (ceiling boards) as highly designed building materials according to embodiments of the present invention. Although not shown, each of the ceiling materials A1 and A2 is installed, for example, in a space of a lattice structure formed by a main bar and a cross bar that are orthogonal to each other on the ceiling of the room.

As shown in FIGS. 1 and 2, each of the ceiling materials A1 and A2 includes a square plate-shaped base material 1 of, for example, 600 mm square. This base material 1 is made of, for example, a rock wool board having sound absorbing performance, and thus the ceiling materials A1 and A2 are sound absorbing ceiling materials.

The base material 1 is a plate material with a thickness of, for example, 15 mm, and the surface 1a that will be the bottom surface during construction is dug along the pair of opposing sides of the base material 1. A plurality of concave grooves 3, 3, . Protrusions 6, 6, . . . are provided. As a result, a plurality of grooves 3, 3, . . . (recesses) and a plurality of protrusions 6, 6, .

Specifically, the ceiling materials A1 shown in FIGS. 1 to 5 all have the same structure, and have 11 grooves 3, 3, ... and 12 protrusions 6, 6, on the surface 1a. ...is formed. On the other hand, FIGS. 6 to 8 also show a ceiling material A2 having the same structure, in which six grooves 3, 3, ... and six protrusions 6, 6, ... are formed on the surface 1a. .

Both the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 have the same structure of each groove 3. That is, as shown in FIG. 2, each groove 3 has a trapezoidal cross section whose groove width gradually decreases from the opening side toward the bottom 3a, and each protrusion 6 also has a trapezoidal cross section from the opening side to the bottom 3a side. It has a trapezoidal cross section whose width gradually increases from the bottom 3a side of the groove 3 toward the top surface 6a side (the opening side of the groove 3). As a result, the groove side surfaces on both sides of each groove 3, that is, the side surfaces on both sides of each protrusion 6, are not orthogonal surfaces perpendicular to the surface 1a of the base material 1, but are tapered surfaces inclined with respect to the orthogonal surfaces. There is. Further, the depth of each groove 3 is, for example, 3 mm, and the width of the bottom portion 3a of each groove 3 is, for example, 15.6 mm.

On the other hand, the ceiling material A1 having the structure shown in FIGS. 1 to 5 and the ceiling material A2 having the structure shown in FIGS. 6 to 8 differ in the number of grooves 3 dug in the surface 1a of the base material 1. Accordingly, the width of the top surface 6a (top surface) of each protrusion 6 is different, and the width of the top surface 6a of each protrusion 6 of the ceiling material A1 having the structure shown in FIGS. 1 to 5 is, for example, 32.2 mm. In contrast, the width of the top surface 6a of each protruding strip 6 of the ceiling material A2 having the structure shown in FIGS. 6 to 8 is wide, for example, 82.2 mm, which is larger than that of the ceiling material A1.

First and second pattern parts 11 and 12 are provided as a surface pattern 10 on the surface 1a of the base material 1 of each ceiling material A1 and A2 by inkjet printing, and the first pattern part 11 is formed inside each groove 3. The second pattern portion 12 is formed on the bottom 3a of the groove 3 or on the side surface of the groove, and the second pattern portion 12 is formed on the top surface 6a of each protrusion 6. The first pattern portion 11 formed inside each groove 3 and the second pattern portion 12 formed on the top surface 6a of each protrusion 6 have the same hue and similar color, but have different lightness. The brightness of the second pattern portion 12 on the top surface 6a of each convex strip 6 is higher than the brightness of the first pattern portion 11 in each groove 3, and has a bright color.

There is a color difference ΔE between the first pattern portion 11 and the second pattern portion 12, and the color difference ΔE is in the range of ΔE=3 to 9 (3≦ΔE≦9). If this color difference ΔE exceeds this range, the color difference will give an unnatural feeling, so it is necessary that ΔE is in the range of 3 to 9. The above color difference ΔE is defined as in the following equation.

ΔE={(ΔL ^* ) ² + (Δa ^* ) ² + (Δb ^* ) ² } ^1/2
ΔL ^* : Difference in index between black and white of the two pattern parts 11 and 12 Δa ^* : Difference in index between green and red of the two pattern parts 11 and 12 Δb ^* : Between blue and yellow of the two pattern parts 11 and 12 For example, FIGS. 3 to 8 show samples of ceiling materials A1 and A2 that are both 600 mm square plate materials, and ceiling materials A1 shown in FIGS. 3 to 5 and The ceiling material A2 shown has the same groove width of each groove 3 as described above, but differs in the width of the protrusion 6 between the grooves 3 (width of the top surface 6a), and is different from that shown in FIGS. The width of the ridges 6 of the ceiling material A2 of No. 8 is larger than that of the ceiling material A1 of FIGS. 3 to 5. Two types of samples with different widths of the ridges 6 are coated with “Light,” “Medium,” and “Dark,” which have different lightness (lightness of the entire sample) for each type, by inkjet printing. The brightness of the "Light" sample is greater than the "Medium" sample, and the brightness of the "Medium" sample is greater than the "Dark" sample (see FIG. 9). Moreover, by this coating, a first pattern part 11 is formed in the groove 3 of each sample, and a second pattern part 12 is formed in the top surface 6a of the protrusion 6, and as shown in FIG. The two pattern parts 11 and 12 have different color characteristics such as hue H, lightness V, saturation C, index L ^* between black and white, index a ^* between green and red, and index b ^* between blue and yellow. Brightness V is one of the color attributes, and is expressed as 10 for white (100% light reflectance) and 0 for black (0% light reflectance). Chroma C is also one of the color attributes, with an achromatic color being 0, and the value increasing as the proportion of tint increases. In addition, in FIG. 9, the top surface 6a of the protrusion 6 is described as a top surface.

The index L ^* (Elster) is an index that can take a range from 0 to 100, with "black" being 0 and "white" being 100. The index a ^* (Aster) is the index of "green" and "red" which are complementary colors. The index b ^* (Beastar) is an index that can range from -60 to +60, with "green" being -60 and "red" being +60. It is an index that can range from -60 to +60, with "blue" being -60 and "yellow" being +60.

At this time, as shown in FIG. 10, the difference ΔL* in the index L ^* between the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the protrusion 6, and the difference ΔL ^* in the index b ^* . The difference Δa ^* and the difference Δb ^* of the index b ^* are determined, and the color difference ΔE is obtained from these differences according to the above formula. Specifically, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is, for example, ΔE=7.45989 for the “Light” sample, ΔE=8.94986 for the “Medium” sample, and ΔE=8.94986 for the “Dark” sample. ” sample, ΔE=3.04302. As a result, the color difference ΔE between the first pattern portion 11 and the second pattern portion 12 is in the range of ΔE=3 to 9. Moreover, as shown in FIG. 10, the color difference ΔE between the first and second pattern parts 11 and 12 becomes smaller as the overall brightness of the ceiling materials A1 and A2 due to both pattern parts 11 and 12 becomes lower. ing.

In this embodiment, the depth of the groove 3 is, for example, 3 mm, but the deeper the depth of the groove 3, the smaller the color difference ΔE is within the above range, and the preferable roughness of the surface of the base material 1 can be achieved. easily obtained.

Therefore, in this embodiment, a plurality of grooves 3, 3, ... and a plurality of protrusions 6, 6, ... located between them are arranged alternately on the surface 1a of the base material 1. For the ceiling materials A1 and A2, a first pattern portion 11 is provided inside each groove 3, and a second pattern portion 12 having the same hue as the first pattern portion 11 is provided on the top surface 6a of each protrusion 6. It is formed by coating, and both pattern parts 11 and 12 have the same hue, but the brightness of the second pattern part 12 in the groove 3 is higher than that of the first pattern part 11 on the top surface 6a of the convex strip 6, The color difference ΔE between the second pattern portions 11 and 12 is in the range of ΔE=3 to 9. From this, the first pattern part 11 in the groove 3 and the second pattern part 12 on the top surface 6a of the convex strip 6 are clearly distinguished from each other, and the first pattern part 11 in the groove 3 is different from the convex part. With respect to the second pattern portion 12 of the top surface 6a of the strip 6, the difference in brightness and the difference in color difference ΔE in the range of ΔE=3 to 9 clearly make it look like the groove 3, and conversely, the second pattern The portion 12 appears as a protrusion 6 with respect to the first pattern portion 11. As a result, even when the ceiling materials A1 and A2 installed on the ceiling are viewed from a position away from the ceiling, for example, on the floor, the surface pattern 10 on the surface 1a has a clear sense of unevenness or shading. The unevenness can be clearly seen. Therefore, even if the ceiling materials A1 and A2 have a plurality of grooves 3, 3, ... formed by digging into the surface 1a of the base material 1, leaving protrusions 6, 6, ... between them, A clear sense of unevenness or shading can be visually recognized on the surface 1a without increasing the digging depth of the grooves 3, and even if the base material 1 is a rock wool board with sound absorption performance, the grooves 3 By reducing the depth, the strength of the ceiling materials A1 and A2 (base material 1) can be ensured to a large extent, and bending deformation due to moisture absorption etc. in the construction state can be suppressed. That is, by using the base material 1 such as a rock wool board that has sound absorbing performance, it is possible to easily obtain ceiling materials A1 and A2 that have sound absorbing performance and are difficult to bend and deform, in which the unevenness or shading of the surface 1a clearly appears. becomes.

Moreover, since the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by inkjet printing, the first and second pattern parts 11 and 12 on the surface 1a of the base material 1 are formed by painting by this inkjet printing. 11 and 12 can be applied with the necessary colors of ink, making it possible to easily express unevenness, shading, and texture.

Furthermore, the color difference ΔE between the first and second pattern portions 11 and 12 decreases as the overall brightness of the ceiling materials A1 and A2 due to both pattern portions 11 and 12 decreases. Even if the brightness between the parts 11 and 12 changes, the color difference will also change within the range accordingly, making it difficult to stably express the unevenness or shading of the surfaces of the ceiling materials A1 and A2 described above. can.

(Other embodiments)
In the above embodiment, a plurality of grooves 3, 3, ... and protrusions 6, 6, ... are formed on the surface 1a of the base material 1, and the first pattern section 11 is formed on the inner surface of each groove 3. Although the second pattern portion 12 is provided on the top surface 6a of each protruding strip 6, it is not limited to the grooves 3 and the protruding strips 6, and the surface 1a of the base material 1 may include a plurality of concave portions and a plurality of convex portions. They may be arranged alternately, and the shapes of the concave portions and convex portions in plan view do not matter. The first pattern portion 11 may be provided on the inner surface of each concave portion, and the second pattern portion 12 may be provided on the top surface of each convex portion by inkjet printing.

Moreover, in order to form the first and second pattern parts 11 and 12, it is not essential to perform painting by inkjet printing, and they can also be formed by other printing methods or painting methods.

Furthermore, in the above embodiment, a plurality of grooves 3, 3, ... (concave portions) and protrusions 6, 6, ... (convex portions) are formed on the surface 1a of the base material 1, and a plurality of grooves 3, 3, ... (convex portions) are formed on the inner surface of each groove 3. Although the first pattern portion 11 and the second pattern portion 12 are provided on the top surface 6a of each protrusion 6, the base material 1 may be a flat surface without recesses and protrusions on the surface 1a. As a surface pattern 10, a plurality of first pattern parts 11, 11, ... representing concave parts and a plurality of second pattern parts 12, 12, ... representing convex parts are alternately lined up and painted on the plane surface 1a. At that time, the brightness of the second pattern part 12 may be made higher than that of the first pattern part 11, and the color difference ΔE between the first and second pattern parts 11 and 12 may be set in the range of ΔE=3 to 9. In this way, even without forming an uneven part on the surface 1a of the base material 1, a clear sense of unevenness or shadow can be obtained with only the first and second pattern parts 11 and 12 of the surface pattern 10. As a result, there is no need to process uneven parts, and highly designed building materials can be produced at low cost.

Further, in the above embodiments, the present invention is applied to ceiling materials A1 and A2 such as rock wool that have sound absorbing performance, but the present invention is applicable to ceiling materials that do not have sound absorbing performance or materials other than ceiling materials, such as It can be applied to other interior materials and construction materials, such as wall materials, to give them a highly designed appearance. Moreover, the material and type of the base material 1 are not limited either.

Next, an example specifically implemented by the present inventor will be described. As in the above embodiment, three ceiling material samples were prepared in which a plurality of grooves (depth: 3 mm) and protrusions extending parallel to each other on the surface of the base material were formed alternately at equal intervals. In one example, the width of the top surface of each protrusion was narrow, and in the other two comparative examples, the width of the top surface was wide. First and second pattern portions 11 and 12 were printed as a surface pattern on the surface of each sample by inkjet printing. By setting the brightness of the surface pattern of each sample to "Light" and changing the color difference ΔE between the first and second pattern parts 11 and 12, "Example", "Comparative Example 1" and "Comparative Example 2" was created. A photograph of Example 1 is shown in FIG. 11, a photograph of Comparative Example 1 is shown in FIG. 12, and a photograph of Comparative Example 2 is shown in FIG. 13.

(Example)
The color difference ΔE between the first and second pattern portions 11 and 12 was within the range specified in the present invention (3≦ΔE≦9).

(Comparative example 1)
The color difference ΔE between both pattern parts 11 and 12 was ΔE=about 1 (ΔE<3).

(Comparative example 2)
This is an example in which the color difference ΔE between both pattern parts 11 and 12 is larger than ΔE=9 (ΔE>9).

When we observed the surface unevenness of these Examples and Comparative Examples 1 and 2, we found that in Comparative Example 1, where the color difference ΔE between the pattern parts 11 and 12 was smaller than 3, the difference in the uneven parts was not significant, as shown in FIG. On the other hand, in the example, the difference in the uneven portions is clear as shown in FIG. 11. On the other hand, when the color difference ΔE between the pattern portions 11 and 12 is larger than 9 as in Comparative Example 2, the difference between the uneven portions becomes noticeable and an unnatural feeling occurs, as shown in FIG.

As a result, if the color difference ΔE between the first and second pattern parts 11 and 12 is in the range of ΔE=3 to 9, the unevenness can be clearly recognized visually without increasing the digging depth of the recesses. It was clear that the design could be improved.

INDUSTRIAL APPLICABILITY The present invention is extremely useful and has industrial applications because the pattern on the surface of a building material exhibits a clear unevenness or shading, and the unevenness can be clearly recognized visually to improve the design. Probability is high.

A1, A2 Ceiling material (highly designed architectural material)
1 Base material 1a Surface 3 Concave groove (concavity)
6 Protrusions (protrusions)
6a Top surface 10 Surface pattern 11 First pattern portion 12 Second pattern portion

Claims (7)

A highly designed construction material in which a surface pattern of the same hue is provided on the planar surface of the base material,
The surface pattern is one in which a plurality of first pattern portions representing concave portions and a plurality of second pattern portions representing convex portions are arranged alternately in line,
A highly designed building material, characterized in that the brightness of the second patterned portion is higher than that of the first patterned portion, and the color difference ΔE between the first and second patterned portions is in the range of ΔE=3 to 9. A highly designed construction material in which a plurality of concave portions and a plurality of convex portions are arranged alternately on the surface of a base material,
A first pattern is provided on the inner surface of the concave portion, and a second pattern is provided on the top surface of the convex portion, the second pattern having the same hue as the first pattern and a higher brightness than the first pattern,
A highly designed building material characterized in that the color difference ΔE between the first and second pattern parts is in the range of ΔE=3 to 9. In the highly designed building material of claim 2,
A highly designed construction material characterized in that the concave portions are grooves and the convex portions are convex stripes between the grooves. In the highly designed building material according to claim 2 or 3,
A highly designed construction material characterized by the fact that the deeper the recesses, the smaller the color difference. In the highly designed building material according to any one of claims 1 to 4,
A highly designed construction material, wherein the first and second pattern parts are formed by inkjet printing. In the highly designed building material according to any one of claims 1 to 5,
A highly designed construction material whose base material has sound absorption properties. A ceiling material comprising the highly designed construction material according to any one of claims 1 to 6.