JP2017128087A - Design material and structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a design material having a light-emitting part emitting light by ultraviolet radiation and hardly recognizing a border of the light-emitting part visibly during non-irradiation of ultraviolet or irradiation of visible light.SOLUTION: There is provided a design material having light transmissivity by laminating a design layer having at least one or more ultraviolet light-emitting part A and a non-light-emitting part B neighboring the ultraviolet light-emitting part on at least one surface of a substrate 1 having light transmissivity, which has contrast ratio of the ultraviolet light-emitting part of 10 to 80%, contrast ratio of the non-light-emitting part of 10 to 80% and difference of contract ratios of the ultraviolet light-emitting part and the non-light-emitting part of 0 to 20%. There is provided a design material preferably having difference of 60 degree mirror surface glossiness of the ultraviolet light-emitting part (A) and the non-light-emitting part (B) of 0 to 20 and further color difference (▵E) of 0 to 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a novel design material and a structure using the same.

Conventionally, decorative materials using fluorescent pigments that emit light when irradiated with ultraviolet rays are known. Since such a decorative material exhibits different hues when irradiated with ultraviolet rays and when not irradiated, it is used as a highly designable material in various fields. For example, Patent Document 1 describes a decorative material in which characters or figures are drawn with an ultraviolet light-emitting paint on a transparent or translucent sheet member, and the decorative material emits characters and designs when irradiated with ultraviolet light. is there.

Moreover, combining the ultraviolet light source and the visible light source and improving the design by the irradiation pattern of each light source has been studied. For example, Patent Document 2 describes a display device that irradiates an ultraviolet light source and / or a visible light source onto a display plate partially having a fluorescent display portion and a normal display portion on a transparent substrate. In the cited document 2, there is an effect of highlighting one of the fluorescent display unit and the normal display unit by turning on / off the ultraviolet light source and the visible light source.

Utility Model Registration No. 3010839 Japanese Patent Laid-Open No. 7-84538

However, as in Patent Documents 1 and 2, when a fluorescent display portion such as letters and figures is provided with an ultraviolet light-emitting paint on a transparent or semi-transparent sheet member, the outline of the letters and designs is not irradiated with ultraviolet rays. May be visually recognized and may impair aesthetics. In particular, when the visible light source is irradiated, the outline of the fluorescent display unit is easily visually recognized.

The present invention has been made in view of the above-described problems, and relates to a design material having a light-emitting portion that emits light when irradiated with ultraviolet rays. The outline of the light-emitting portion is not irradiated with ultraviolet rays or irradiated with visible light. It aims at obtaining the design material which is hard to be visually recognized.

As a result of intensive studies to achieve the above object, the present inventor has at least one ultraviolet light emitting part (A) and a non-light emitting part (B) adjacent to the ultraviolet light emitting part (A). The inventors conceived a design material in which the concealment rate of the ultraviolet light emitting part (A) and the non-light emitting part (B) satisfies a specific condition, thereby completing the present invention.

That is, the joint material of the present invention has the following characteristics.
1. A design material having translucency,
On at least one surface of the substrate having translucency,
A design layer having at least one ultraviolet light emitting part (A) and a non-light emitting part (B) adjacent to the ultraviolet light emitting part (A) is laminated,
The concealing rate of the ultraviolet light emitting part (A) is 10 to 80%, the concealing rate of the non-light emitting part (B) is 10 to 80%,
A design material, wherein a difference in concealment ratio between the ultraviolet light emitting part (A) and the non-light emitting part (B) is 0 to 20%.
2. The difference in 60 degree specular gloss between the ultraviolet light emitting part (A) and the non-light emitting part (B) is 0-20. The design material described in 1.
3. The color difference (ΔE) between the ultraviolet light emitting part (A) and the non-light emitting part (B) is 0 to 10. Or 2. The design material described in 1.
4). The design material is a laminate of light diffusion layers. ~ 3. The design material according to any one of the above.
5.1. ~ 4. A structural body comprising the design material according to any one of the above, an ultraviolet light source, and a visible light source.

The design material of the present invention comprises at least one ultraviolet light emitting part (A) and a non-light emitting part (B) adjacent to the ultraviolet light emitting part (A) on at least one surface of a translucent substrate. The ultraviolet light emitting part (A) has a concealing rate of 10 to 80%, the non-light emitting part (B) has a concealing rate of 10 to 80%, and the ultraviolet light emitting part (A) And the non-light-emitting part (B) has a concealment rate difference of 0 to 20%, so that the light emission of the ultraviolet light-emitting part (A) is visually recognized when irradiated with ultraviolet light, but the outline of the light-emitting part is not exposed when ultraviolet light is not irradiated. It is hard to see and has excellent aesthetics. Furthermore, when the design material of the present invention is irradiated with visible light, the boundary between the ultraviolet light emitting part (A) and the non-light emitting part (B) is hardly visible, and a uniform hue can be exhibited.

FIG. 1 is an example of the design material of the present invention, and shows (a) a sectional view and (b) a front view. Drawing 2 is a sectional view of the design material of the present invention, and (a)-(c) shows a variation. FIG. 3 is an example of a cross-sectional view of the design material of the present invention. FIG. 4 is an example of a cross-sectional view of the structure of the present invention. FIG. 5 is an example of a cross-sectional view of the structure of the present invention. FIG. 6 shows a model diagram of a light emission pattern of a design material (front view) when the structure of the present invention is used. FIG. 7 is a front view of the design material of the present invention used in Examples. Fig.8 (a) is (XY) sectional drawing of the design material shown in FIG. 7 (design materials 1-15). (B) is a cross-sectional view of the design material 16, and (c) is a cross-sectional view of the design material 17.

1. Base material (1)
2. Design layer (2)
A. Ultraviolet light emitting part B. Non-light emitting part C.I. Non-light emitting part 2. light shielding part Light diffusion layer (3)
4). Ultraviolet light source (4)
5. Visible light source (5)

  Hereinafter, embodiments for carrying out the present invention will be described in detail.

The present invention relates to a design material having translucency. As shown in FIG. 1, the design material of the present invention has an ultraviolet light emitting part (A) that emits light by ultraviolet irradiation on one surface of the translucent substrate (1), and is adjacent to the ultraviolet light emitting part (A). The design layer (2) having the non-light emitting portion (B) is laminated, and the ultraviolet light emitting portion (A) and the non-light emitting portion (B) have a translucent appearance having a specific concealing property. It has sex. The “translucency” in the present invention is to have visible light transparency.

  The translucent base material (1) of the present invention (hereinafter, also simply referred to as “base material (1)”) plays a role of holding the design layer (2), and at least of the design layer (2). It may be laminated on one side, but it can also be laminated on both sides so as to sandwich the design layer (2). Although it will not specifically limit if it has translucency as a base material (1), For example, glass, a plastics etc. are mentioned, You may use these combining 1 type (s) or 2 or more types.

In addition, as the shape of the substrate (1), for example, plate-like, film-like, sheet-like planar bodies, those obtained by bending or bending the planar bodies, or box-shaped, cylindrical, spherical, etc. Can be mentioned. Although the thickness of a base material (1) is not specifically limited, Preferably it is 0.01-30 mm (more preferably 0.05-20 mm). In the case of such a base material (1), since the design layer (2) is held and light emission can be visually recognized from both surfaces of the design material, the design property is also excellent.

The design layer (2) of the present invention is laminated on at least one surface of the substrate (1) and has an ultraviolet light emitting part (A) and a non-light emitting part (B). First, the ultraviolet light emitting part (A) and the non-light emitting part (B) will be described.
・ Ultraviolet light emitting part (A)
The ultraviolet light emitting part (A) of the present invention has a concealment rate of 10 to 80% (preferably 12 to 60%, more preferably 15 to 50%). Specifically, when irradiated with ultraviolet rays, When it emits light to exhibit a fluorescent emission color and is irradiated with visible light, it has translucency to exhibit a light source color from a light source. In the present invention, the concealment rate can be calculated from the luminous reflectance of the white ground and the black ground when the ultraviolet light emitting part (A) is placed on the concealment rate test paper. The luminous reflectance can be measured and calculated using a color difference meter.

The ultraviolet light emitting part (A) of the present invention includes a light-transmitting material (hereinafter referred to as “translucent material”) including a pigment, a dye or the like (hereinafter referred to as “fluorescent material”) that exhibits fluorescence. A composition formed by applying a composition (hereinafter referred to as “light emitting part composition”) on the substrate (1), or a film previously formed into a film shape or a plate shape can be used. . The thickness is preferably 0.01 to 10 mm (more preferably 0.05 to 5 mm).

  As the translucent material, any of an inorganic material and an organic material may be used as long as it has translucency. For example, examples of the inorganic material include glass, water glass, low-melting glass, silicon resin, and alkoxysilane. Organic materials include acrylic resin, acrylic-styrene resin, acrylic silicon resin, cellulose acetobutyrate resin, cellulose propionate resin, polymethylpentene resin, polycarbonate resin, polystyrene resin, polyester resin, epoxy resin, urethane Examples thereof include resins. These may be used alone or in combination of two or more.

The fluorescent material is not limited as long as it exhibits fluorescence emission under ultraviolet irradiation, and known fluorescent dyes, fluorescent pigments, and the like can be used. In the present invention, those that do not exhibit fluorescence emission under visible light are preferred, and among these phosphors, inorganic fluorescent pigments that are excellent in fluorescence emission durability and weather resistance are particularly preferred.

As the constitution of the inorganic fluorescent pigment, for example, as a base crystal, alumina (Al ₂ O ₃ ), calcium tungstate (CaWO ₄ ), zinc oxalate (Zn ₂ SiO ₄ ), zinc sulfide (ZnS), yttrium oxide (Y ₂ O ₃ ), yttrium sulfide oxide (Y ₂ O ₂ S), aluminum yttrium oxide (Y ₃ Al ₅ O ₁₂ ), yttrium vanadate (YVO ₄ ), barium magnesium aluminum oxide (BaMgAl ₁₀ O ₁₇ ), strontium phosphate _{(Sr 2 P 2 O 7)} , a compound selected from like, Eu, Ce, Mn, those obtained by adding an activating agent such as Bi can be used. These may be used alone or in combination of two or more.
Moreover, the average particle diameter of the inorganic fluorescent pigment is preferably 0.01 to 50 μm (more preferably 0.05 to 30 μm). In the present invention, the average particle diameter is a value measured by a light scattering method.

  In the composition for light emitting part, it is preferable to mix 0.5 to 50 parts by weight, more preferably 1 to 30 parts by weight of the fluorescent material with respect to 100 parts by weight of the translucent material (solid content). In such a case, excellent light emission can be visually recognized. Moreover, a predetermined concealment rate can be satisfied.

Furthermore, the light emitting part composition can also be mixed with powder particles for setting a predetermined concealment ratio. The powder and granule may be appropriately selected and used so as to have a predetermined concealment ratio, but those that do not inhibit the light emission of the fluorescent material (that is, UV absorption) are preferable. For example, alumina, zirconium oxide, barium sulfate, Calcium carbonate, kaolin, clay, porcelain clay, china clay, talc, mica, silica, aluminum hydroxide, magnesium hydroxide, or crushed materials such as cryolite, feldspar, silica stone, quartz sand, glass beads, glass pulverized materials, resin pulverized materials And resin beads. These can be used alone or in combination of two or more.

In the present invention, gloss, color tone and the like can be adjusted in addition to the concealing property of the light emitting part (A) by the kind, combination, amount, and the like of the powder particles. In particular, when the desired glossiness is set, it may be appropriately selected according to the type of the fluorescent material, but an embodiment using calcium carbonate, barium sulfate, alumina or the like is preferable. Thereby, it can set to a desired glossiness, without reducing the light emission luminance of an ultraviolet light emission part (A) under ultraviolet irradiation. Furthermore, the light diffusibility of the fluorescence emission (visible light) is enhanced, and the fluorescence emission color exhibited by the ultraviolet light emission part (A) is more easily visible.

The average particle diameter of the powder is preferably 0.1 μm to 30 μm (more preferably 0.3 μm to 20 μm), and the refractive index is preferably 1.3 to 3 (more preferably 1.4 to 2.5). It is. Moreover, the powder is preferably mixed in an amount of 0.5 to 50 parts by weight (more preferably 1 to 30 parts by weight) with respect to 100 parts by weight of the translucent material (solid content). By being in such a range, the effect of the present invention can be easily obtained.

In the composition for a light emitting part, in addition to the above components, for example, a coloring pigment, an extender pigment, a matting agent, a plasticizer, a flame retardant, a lubricant, a preservative, It may contain glaze, anti-algae, antibacterial, dispersant, antifoaming agent, film-forming aid, adsorbent, cross-linking agent, antioxidant, catalyst, anti-blocking agent, etc. Can be mixed uniformly by a conventional method. In addition, the said composition for light emission parts can be set to a desired color tone by adjusting the kind, combination, quantity, etc. of a color pigment.

・ Non-light emitting part (B)
The non-light-emitting portion (B) of the present invention has a concealment rate of 10 to 80% (preferably 12 to 60%, more preferably 15 to 50%). Specifically, when irradiated with ultraviolet rays, When it emits no visible light and is irradiated with visible light, it has translucency that exhibits a light source color from the light source. The concealment rate is measured by the same method as that for the ultraviolet light emitting part (A).

The non-light-emitting part (B) of the present invention is mainly composed of a light-transmitting material (preferably not including the fluorescent material), and the difference in concealment rate from the light-emitting part (A) is 0-20. % (Preferably 0 to 10%, more preferably 0 to 8%). In such a case, when the ultraviolet light is irradiated, the light emission of the ultraviolet light emitting part (A) is visually recognized, but when the ultraviolet light is not irradiated, the outline of the light emitting part is hardly visible and a design material excellent in aesthetics can be obtained. Furthermore, when the design material of the present invention is irradiated with visible light, the boundary between the ultraviolet light emitting part (A) and the non-light emitting part (B) is hardly visible, and a uniform hue can be exhibited. In the present invention, the difference in concealment rate means the absolute value of the difference in concealment rate between the ultraviolet light emitting part (A) and the non-light emitting part (B). When the concealment rate of the ultraviolet light emitting part (A) and the non-light-emitting part (B) is the same, the difference in concealment rate is “0%”.

The non-light emitting part (B) was formed by applying a composition containing the above light-transmitting material as a main component (hereinafter also referred to as “non-light emitting part composition”) on the base material (1). Or those previously formed into a film shape or a plate shape can be used. The thickness is preferably 0.01 to 10 mm (more preferably 0.05 to 5 mm).

In the non-light-emitting portion (B) of the present invention, the method for setting the concealment rate is not particularly limited.
(1) A method of forming a translucent material and imparting a fine uneven shape to the surface thereof,
(2) A method of mixing powders that impart concealability to a translucent material,
(3) A method of combining a plurality of materials having different refractive indices, compatibility, etc. as a light transmissive material,
The above (1) to (3) can be combined. In the present invention, the method (2) is preferred.

  In the above (1), the difference between the heights of the concave and convex portions having a fine concavo-convex shape may be appropriately set depending on the desired concealment ratio, but is preferably 0.01 to 20 μm (more preferably 0.1 to 10 μm). ), And the interval is preferably 0.1 to 100 μm (more preferably 0.5 to 50 μm).

In the above (2), the powder and granule may be appropriately selected and used so as to have a predetermined concealment rate. For example, alumina, zirconium oxide, barium sulfate, calcium carbonate, titanium oxide, zinc oxide, kaolin, Clay, porcelain clay, china clay, talc, mica, silica, aluminum hydroxide, magnesium hydroxide, or crushed materials such as cryolite, feldspar, silica, silica sand, glass beads, glass crushed materials, resin crushed materials, resin beads, etc. Can be mentioned. These can be used alone or in combination of two or more. In the present invention, the gloss, color tone, and the like of the non-light emitting portion (B) can be adjusted by the type, combination, amount, etc. of such powder particles. In particular, when the desired glossiness is set, an embodiment using calcium carbonate, barium sulfate, alumina or the like is preferable.

The average particle diameter of the powder is preferably 0.1 μm to 30 μm (more preferably 0.3 μm to 20 μm), and the refractive index is preferably 1.3 to 3 (more preferably 1.4 to 2.5). It is. Moreover, the powder is preferably mixed in an amount of 0.5 to 50 parts by weight (more preferably 1 to 30 parts by weight) with respect to 100 parts by weight of the translucent material (solid content). By being in such a range, the effect of the present invention can be easily obtained. In the present invention, the refractive index is a value measured using an Abbe refractometer.

Moreover, it is preferable that the non-light-emitting part (B) of the present invention has ultraviolet reflectivity and / or ultraviolet absorbability. In such a case, the light emission of the ultraviolet light emitting part (A) is more clearly visible at the time of ultraviolet irradiation. In particular, when the emitted light is visually recognized through the design material with respect to the ultraviolet light source, the irradiated ultraviolet light is reflected and / or absorbed by the non-light emitting part (B), and therefore, leakage of the ultraviolet light from the non-light emitting part (B). Can be sufficiently suppressed, and is more effective.

  As a method for imparting ultraviolet reflectivity to the non-light emitting part (B), for example, a material having high ultraviolet reflectivity such as alumina, zirconium oxide, barium sulfate, calcium carbonate, or the like may be used as the above-mentioned granular material. On the other hand, as a method for imparting ultraviolet absorptivity, for example, a material having a high ultraviolet absorptivity such as titanium oxide or zinc oxide may be used as the powder or a known ultraviolet absorber may be added.

In the composition for non-light emitting part, in addition to the above components, for example, coloring pigment, extender pigment, matting agent, plasticizer, flame retardant, lubricant, preservative, It may contain antifungal agents, algaeproofing agents, antibacterial agents, dispersants, antifoaming agents, film-forming aids, adsorbents, crosslinking agents, antioxidants, catalysts, antiblocking agents, etc. The components can be uniformly mixed by a conventional method. In addition, the said composition for non-light-emission parts can be set to a desired color tone by adjusting the kind, combination, quantity, etc. of a color pigment. Moreover, it can also set to desired glossiness by adjusting the kind, combination, quantity, etc. of resin, a granular material, etc.

The non-light emitting part (B) of the present invention has a difference in 60-degree specular gloss (hereinafter also referred to as “glossiness”) from the ultraviolet light emitting part (A), preferably 0 to 20 (more preferably 0 to 0). 15). In such a case, the effect of the present invention can be further enhanced.
In the present invention, the glossiness can be measured using a gloss meter with the ultraviolet light emitting part (A) or the non-light emitting part (B) placed on the black ground on the concealment rate test paper. In the present invention, the difference in glossiness refers to the absolute value of the difference in glossiness between the ultraviolet light emitting part (A) and the non-light emitting part (B). When the glossiness of the ultraviolet light emitting part (A) and the non-light emitting part (B) is the same, the difference in glossiness is “0”.

Furthermore, the non-light emitting part (B) of the present invention has a color difference (ΔE) from the ultraviolet light emitting part (A) of preferably 0 to 10 (more preferably 0 to 8, more preferably 0 to 6). is there. In such a case, the effect of the present invention can be further enhanced. In the present invention, the color difference (ΔE) is a value measured using a color difference meter with the ultraviolet light emitting part (A) or the non-light emitting part (B) placed on the white ground on the concealment rate test paper. Yes, each L ^* value, a ^* value, b ^* value (average value of 10 or more measurement points) can be calculated by the following formula.
^{<Equation> △ E = {(L *} 1 -L * 2) 2 + (a * 1 -a * 2) 2 + (b * 1 -b * 2) 2} 0.5
(In the formula, L ^{* 1} , a ^{* 1} , b ^{* 1} are L ^* , a ^* , b ^{* of the} ultraviolet light emitting part (A), respectively ^. L ^{* 2} , a ^{* 2} , b ^{* 2} are non-light emitting parts ( B) L ^* , a ^* , b ^* )

As shown in FIG. 1, the design layer (2) of the present invention has at least one ultraviolet light emitting part (A) and at least one ultraviolet light emitting portion on at least one surface of a light-transmitting substrate (1). There is no particular limitation as long as it is laminated so as to have a non-light emitting portion (B) adjacent to the portion (A). The ultraviolet light emitting part (A) and the non-light emitting part (B) can form various patterns such as letters and figures. Moreover, the ratio A / B of the thickness of the ultraviolet light emitting part (A) and the non-light emitting part (B) is preferably 0.5 to 2 (more preferably 0.6 to 1.8, still more preferably 0.7 to 1.5). In such a case, the effect of the present invention is more easily obtained.

Furthermore, the design layer (2) of the present invention may have other members in addition to the ultraviolet light emitting part (A) and the non-light emitting part (B) adjacent to the ultraviolet light emitting part (A). As an aspect of the design layer (2) of the present invention, for example,
-A plurality of adjacent ultraviolet light emitting parts (A) and non-light emitting parts (B) [Fig. 2 (a)],
An ultraviolet light emitting part (A) and a non-light emitting part (B) are adjacent to each other and further have a non-light emitting part (C) outside the scope of the present invention [FIG.
-An ultraviolet light emitting part (A) and a non-light emitting part (B)) are adjacent to each other and further have a light shielding part (D) [FIG. 2 (c)],
Etc.

The shape of the design layer (2) is not particularly limited as long as it can be laminated on the base material (1), and is not particularly limited as long as it satisfies the above aspect. For example, plate shape, film shape, sheet shape And the like, those obtained by bending or bending the sheet, or those formed into a box shape, a cylindrical shape, a spherical shape, or the like. The thickness is preferably 0.01 to 10 mm (more preferably 0.05 to 5 mm).

As a method of laminating the design layer (2) on the substrate (1),
A method of laminating a preformed design layer (2) on the base material (1) via an adhesive or the like,
A method for applying the composition for the light emitting part and the composition for the non-light emitting part on the substrate (1) to form the design layer (2);
Etc.

Furthermore, the design material of the present invention can be laminated with a light diffusion layer (3) as long as the effects of the present invention are not impaired (FIG. 3). As the light diffusing layer (3), those having a light diffusing property and a light transmitting property can be used, and for example, a composition containing a light diffusing agent and a light transmitting material (hereinafter also referred to as “a composition for a light diffusing layer”). ), A film previously formed into a film or plate, a commercially available milky white film having translucency, and the like can be used. The thickness is preferably 0.01 to 3 mm (more preferably 0.02 to 2 mm).

Examples of the light diffusing agent include titanium oxide, barium sulfate, talc, clay, alumina white, calcium carbonate, silica, polymethyl methacrylate (PMMA) beads, silicon beads, and styrene beads. These average particle diameters are appropriately selected in relation to the thickness of the light diffusion layer (3), but are preferably 0.5 to 30 μm (more preferably 1 to 15 μm, more preferably 2 to 10 μm), A narrower particle size distribution range is particularly preferable. The light diffusing agent is preferably mixed in an amount of 1 to 500 parts by weight (more preferably 5 to 200 parts by weight) with respect to 100 parts by weight of the translucent material (solid content). By being in such a range, the light emission of the ultraviolet light emitting part (A) is visually recognized, but the outline of the light emitting part is less visible when the ultraviolet light is not irradiated, and the aesthetics are excellent. Furthermore, when visible light is irradiated, the boundary is hard to be visually recognized in an ultraviolet light emission part (A) and a non-light emission part (B), and a uniform hue can be exhibited.

The light diffusion layer (3) is preferably laminated in front of the design layer (2) from the viewing direction. As such an aspect, for example, in order from the viewing direction,
-Base material (1), light diffusion layer (3), design layer (2) [Fig. 3 (a)]
-Light diffusion layer (3), base material (1), design layer (2) [FIG. 3 (b)]
And the like laminated. In such a case, the effect of the present invention can be further enhanced.

In the present invention, a light diffusing substrate (13) in which the substrate (1) and the light diffusion layer (3) are integrated can also be used. As an aspect in this case, for example, in order from the viewing direction,
・ Light diffusing substrate (13), design layer (2)
And the like laminated. Examples of such a light diffusing substrate (13) include glass or plastic containing the above light diffusing agent, or glass (polished glass) or plastic having fine irregularities formed on one side.

<Structure>
The structure of this invention is a structure provided with the above-mentioned design material, an ultraviolet light source (4), and a visible light source (5).
・ Ultraviolet light source (4)
Although the ultraviolet light source of this invention should just emit an ultraviolet light, what has a bright line in the wavelength range of 300 nm-400 nm is preferable, for example, a black light, LED, etc. can be used. The ultraviolet light source may irradiate the entire surface of the fluorescent light emitter, or may locally irradiate to form a pattern. Moreover, what can change the irradiation intensity | strength of an ultraviolet-ray, or can be switched ON / OFF continuously may be used. Further, it may be movable so that the irradiation direction of ultraviolet rays can be freely selected.

・ Visible light source (5)
The visible light source of the present invention is not particularly limited as long as it emits visible light, and in particular, those exhibiting various hues are preferable. For example, a color light bulb, a color light bulb type fluorescent lamp, an LED, or the like can be used. As the hue (light source color) exhibited by the visible light source, it is preferable to use a hue different from the hue exhibited by the ultraviolet light emitting part (A) under ultraviolet irradiation. Further, the selection of each hue may be appropriately set as desired. In addition, the hue which a visible light source exhibits is a hue visually recognized by irradiating the design material of this invention.

In the structure of the present invention, the installation location of the ultraviolet light source (4) and the visible light source (5) is not limited as long as the design material can be irradiated, but in the present invention, as shown in FIG. The light source (4) and the visible light source (5) are preferably installed on the design layer (2) side.

  Moreover, when it has a light-diffusion layer (3) as a design material, as shown to Fig.5 (a) (b), an ultraviolet light source (4) and a visible light source (5) are the design layer (2) side. It is preferable to install in. In this case, the effect of the present invention can be sufficiently exhibited.

FIG. 6 (I) showing a model diagram of the light emission pattern of the design material (front view) when the structure of the present invention is used in FIG. 6 does not irradiate the ultraviolet light source (4) and the visible light source (5). In this case (ultraviolet light source: OFF, visible light source: OFF), a uniform translucent layer is visually recognized.
FIG. 6 (II) shows a case where only the ultraviolet light source (4) is irradiated (ultraviolet light source: ON, visible light source: OFF), and the ultraviolet light emitting part (A) exhibits a fluorescent emission color.
FIG. 6 (III) shows the case where only the visible light source (5) is irradiated (ultraviolet light source: OFF, visible light source: ON), and covers the entire design material (from the ultraviolet light emitting part (A) to the non-light emitting part (B)). ) Exhibits a uniform light source color.
FIG. 6 (IV) shows the case where both the ultraviolet light source (4) and the visible light source (5) are irradiated (ultraviolet light source: ON, visible light source: ON), and the ultraviolet light emitting part (A) emits fluorescence. It exhibits a mixed color of a color and a light source color, and exhibits a light source color in the non-light emitting portion (B).

In the present invention, the light emission pattern can be continuously changed by appropriately setting ON / OFF switching of the ultraviolet light source (4) and the visible light source (5), the irradiation intensity of the light source, and the like. It is also possible to express a fantastic light emission pattern in which the light emission color becomes a single color or mixed color on the light emission surface, or the light emission moves. The structure of the present invention can be used as a lighting device, a signboard, an interior, or the like. The structure of the present invention can also be used in combination with a projector such as a projector. In this case, it is possible not only to project an image by the projector but also to express the light emission and the image in combination, thereby further enhancing the visual effect.

  Examples are given below to clarify the features of the present invention.

(Light Emitting Compositions 1-8)
With 100 parts by weight (solid content) of the acrylic resin emulsion, the fluorescent pigment and powder are mixed in the mixing ratio shown in Table 1, and 4 parts by weight of additives (dispersant, antifoaming agent, etc.) are mixed in a conventional manner. And the compositions 1-8 for light emission parts were produced.
(Non-light emitting composition 1-10)
With respect to 100 parts by weight (solid content) of the acrylic resin emulsion, the powder is mixed at the blending ratio shown in Table 2, and 4 parts by weight of additives (dispersant, antifoaming agent, etc.) are mixed in a conventional manner. Compositions 1 to 10 for light emitting parts were produced.
(Composition for light diffusion layer)
20 parts by weight of the granular material 4 is mixed with 100 parts by weight (solid content) of the acrylic resin emulsion, and 4 parts by weight of additives (dispersant, antifoaming agent, etc.) are mixed in a conventional manner, and light diffusion layer A composition for use was prepared.

In addition, the raw material used is shown below.
Fluorescent pigment 1: Blue [BaMgAl ₁₀ O ₁₇ ; Eu, Mn] (average particle diameter 1 μm)
Fluorescent pigment 2: Green [3 (BaMg) O.8Al ₂ O ₃ ; Eu] (average particle diameter 1 μm)
Fluorescent pigment 3: Red [Y ₂ O ₂ S; Eu] (average particle size 5 μm)
・ Granule 1: Calcium carbonate (average particle size 1.5 μm, refractive index 1.56)
Powder body 2: Calcium carbonate (average particle size 30 μm, refractive index 1.56)
・ Powder 3: Barium sulfate (average particle size 0.3 μm, refractive index 1.64)
-Granules 4: Barium sulfate (average particle diameter 8 μm, refractive index 1.64)
Powder body 5: Alumina (average particle diameter 1 μm, refractive index 1.76)
-Granule 6: Alumina (average particle diameter 5 μm, refractive index 1.76)
・ Powder 7: hydrous kaolin (average particle size 0.4 μm, refractive index 1.56)
Powder body 8: Titanium oxide (average particle diameter 0.25 μm, refractive index 2.72)

(Concealment rate measurement)
On the concealment rate test paper, the prepared light emitting part compositions 1 to 8 and non-light emitting part compositions 1 to 10 were applied so that the dry film thickness was 75 μm and dried, and a test specimen was used. The visual reflectance of the black ground coating and the white ground coating in the test body was measured using a color difference meter, and the concealment rate (%) was calculated. The results are shown in Tables 1 and 2.
(Glossiness)
On the concealment rate test paper, the prepared light emitting part compositions 1 to 8 and non-light emitting part compositions 1 to 10 were applied so that the dry film thickness was 75 μm and dried, and a test specimen was used. The gloss of the black ground coating on the test specimen was measured using a gloss meter. The results are shown in Tables 1 and 2.

(Production of design materials)
・ Design materials 1-15
As shown in FIG. 7, the design materials 1-15 which consist of an ultraviolet light emission part (A) and a non-light-emission part (B) were produced by the combination shown to Table 3, 4 on the single side | surface of a base material (transparent glass plate). . In addition, as a coating method, first, the composition for light emitting part was applied to the ultraviolet light emitting part (A) part and dried so that the dry film thickness was 75 μm. Next, the ultraviolet light emitting part (A) is masked, the composition for non-light emitting part is applied so that the dry film thickness is 75 μm, and after drying, the masking material is removed and ultraviolet light is emitted on one surface of the substrate. A design material in which the part (A) and the non-light emitting part (B) were adjacent to each other was obtained [FIG. 8 (a)].

・ Design material 16
On one side of the substrate (transparent glass plate), the composition 1 for the light emitting part 1 is applied to only the part (A) of FIG. 8 so that the dry film thickness is 75 μm and dried, and only the ultraviolet light emitting part (A). A design material 16 in which was partially formed was obtained [FIG. 8B].

・ Design material 17
On one side of the base material (transparent glass plate), the composition 4 for non-light emitting part was applied to the entire surface so that the dry film thickness was 75 μm and dried. Next, on the formed non-light-emitting portion (B), the light-emitting portion composition 1 is applied and dried so that the dry film thickness becomes 75 μm, and the pattern (A) in FIG. A design material 17 in which the ultraviolet light emitting part (A) was laminated on a part of the part (B) was obtained [FIG. 8 (c)].

・ Design material 18
The light diffusion layer composition was applied to the entire surface of the design material 1 on the base material side so that the dry film thickness was 75 μm and dried to obtain a design material 18 on which the light diffusion layer was laminated.

・ Design material 19
The light diffusing layer composition was applied to the entire surface of the design material 10 on the base material side so that the dry film thickness was 75 μm and dried to obtain a design material 19 on which the light diffusing layer was laminated.

(Examples and comparative examples)
(Production of structure)
An ultraviolet light source (6 W ultraviolet lamp: 365 nm) and a visible light source (light source color: red) were installed at a distance of 5 cm from the design material on the design layer side of each design material to produce a structure.

(Evaluation)
Each light source of the structure was irradiated as follows (I) to (IV), and the light emission of the ultraviolet light emitting part (A) and the non-light emitting part (B) was visually evaluated. Each evaluation standard is shown below.

(I) When UV light source: OFF, visible light source: OFF (A) and (B) where the contour of the pattern is not confirmed at all, and a uniform texture is visually recognized as “◎”. The case where the outline of the pattern of (B) was clearly confirmed and the difference in texture was visually recognized was evaluated as “x” in four stages (◎>○>Δ> ×).

(II) When ultraviolet light source: ON, visible light source: OFF (A) A clear light emission pattern (blue, green, or red) is confirmed as “（”, and the contour of (A) is An unclear one was evaluated as “x” in four stages (◎>○>Δ> ×).

(III) When UV light source: OFF, visible light source: ON The outline of the pattern of (A) and (B) is not confirmed at all, and a uniform red light emitting surface is visually recognized as “◎”. ) And the case where uniform light emission was not visually recognized was evaluated as “x” in four stages (◎>○>Δ> ×).

(IV) Ultraviolet light source: ON, Visible light source: ON
The patterns of (A) and (B) are clearly confirmed, the (A) portion is confirmed to emit a mixed color of the fluorescent color (blue, green or red) and the light source color (red), and the (B) portion is red. The case where the light emitting surface was visually recognized was evaluated as “「 ”, and the case where the light emission of (A) or (B) was insufficient was evaluated as“ x ”in four stages (（>◯>Δ> ×).

  In the design materials 1 to 12, when the ultraviolet rays were not irradiated or when the visible light was irradiated, it was difficult to visually recognize the outline of the light emitting part, and when the ultraviolet rays were irradiated, a light emission pattern with a clear outline was confirmed. Furthermore, the design materials 18 and 19 can further enhance the above effects.

Claims (5)

A design material having translucency,
On at least one surface of the substrate having translucency,
A design layer having at least one ultraviolet light emitting part (A) and a non-light emitting part (B) adjacent to the ultraviolet light emitting part (A) is laminated,
The concealing rate of the ultraviolet light emitting part (A) is 10 to 80%, the concealing rate of the non-light emitting part (B) is 10 to 80%,
A design material, wherein a difference in concealment ratio between the ultraviolet light emitting part (A) and the non-light emitting part (B) is 0 to 20%. 2. The design material according to claim 1, wherein the 60-degree specular gloss difference between the ultraviolet light-emitting portion (A) and the non-light-emitting portion (B) is 0-20. The design material according to claim 1 or 2, wherein a color difference (ΔE) between the ultraviolet light emitting part (A) and the non-light emitting part (B) is 0 to 10.   The design material according to any one of claims 1 to 3, wherein the design material is a laminate of light diffusion layers. A structural body comprising the design material according to claim 1, an ultraviolet light source, and a visible light source.

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