JP7203351B2 - LUMINOUS SILICONE MARKER, MANUFACTURING METHOD THEREOF, AND LUMINOUS SILICONE STRUCTURE - Google Patents

Description

TECHNICAL FIELD The present invention relates to a phosphorescent silicone marker that is installed on a road surface or the like and mainly serves as a sign for evacuation guidance or safety, a method for producing the same, and a phosphorescent silicone structure.

Outdoors at night, in the dark, pedestrians, cyclists, and other pedestrians trip over curbs and road shoulder blocks installed on the road surface and fall, or fall from gutters and cliffs. There is known a phosphorescent indicator for notifying danger by installing it at the position of or near it. For example, Patent Document 1 discloses a method of manufacturing such a phosphorescent sign for installation on a road surface, which emits light with high luminance and can be visually recognized from all directions (see Patent Document 1). .

JP 2014-125791 A

Since such phosphorescent indicators are installed on outdoor road surfaces for a long period of time, there is a high risk of deterioration and staining due to direct sunlight, wind and rain, or dust. Even so, such deterioration and contamination may reduce the effect of light emission. Therefore, it is desirable that the phosphorescent indicator has excellent weather resistance and antifouling properties. However, there has been no known luminous indicator for installation on a road surface that is specially devised so as to exhibit excellent weather resistance and antifouling properties.

The present invention is made in view of such problems. That is, the problem to be solved by the present invention is to provide a luminous indicator for road surface that is excellent in weather resistance and antifouling properties.

As a means for solving the above problems, a first aspect of the present invention includes a base substrate, a reflective layer arranged on the base substrate, a gel adhesive layer arranged on the reflective layer, and a gel adhesive layer Provided is a luminous silicone marker comprising a luminous silicone body, which is a silicone body in which a luminous material is dispersed, and a glass coating layer covering at least the luminous silicone body.

The second invention is based on the first invention and provides a phosphorescent silicone marker in which the density of the phosphorescent material on the outer surface side of the phosphorescent silicone body is higher than the density of the phosphorescent material on the central portion side.

A third invention is based on the first or second invention, and provides a phosphorescent silicone marker in which the glass coating layer also covers the boundary exposed on the outer surface between the phosphorescent silicone body and the gel adhesive layer. .

Further, the fourth invention is based on any one of the first to third inventions, and further provides a gel coating part below the glass coating layer at the boundary exposed on the outer surface of the phosphorescent silicone body and the gel adhesion layer. A phosphorescent silicone marker is provided.

A fifth invention provides a phosphorescent silicone marker based on any one of the first to fourth inventions, wherein the gel adhesive layer is a double-sided tape.

The sixth invention provides a phosphorescent silicone marker based on any one of the first to fifth inventions, wherein the phosphorescent silicone body is dome-shaped.

In addition, the seventh invention is based on any one of the first to sixth inventions, and the surface of the phosphorescent silicone body has characters, figures, symbols, colors, or a combination thereof, which can be recognized by human vision. Provide a phosphorescent silicone marker that depicts what can be done.

An eighth aspect of the present invention includes a reflective layer, a gel adhesive layer disposed on the reflective layer, a phosphorescent silicone body disposed on the gel adhesive layer and being a silicone body in which a phosphorescent material is dispersed, and a phosphorescent silicone body. and a glass coating layer coated with a phosphorescent silicone structure.

In a ninth aspect of the invention, there is provided a base substrate preparation step of preparing a base substrate, a reflection layer placement step of placing a reflection layer on the base substrate, and a gel adhesion layer placement step of placing a gel adhesion layer on the reflection layer. a luminous silicone body preparation step of preparing a luminous silicone body in which a luminous material is dispersed in silicone; a luminous silicone body arranging step of arranging the prepared luminous silicone body on a gel adhesive layer; and a glass coating layer on at least the luminous silicone body. and a step of applying a glass coating layer to cover a luminous silicone marker.

The tenth invention is based on the ninth invention, and the step of preparing the luminous silicone body includes a pre-cured luminous silicone molding sub-step of pouring the luminous silicone, which is silicone in which the luminous material is dispersed before curing, into a mold. and a curing sub-step for curing the phosphorescent silicone poured into the mold and a sub-step for removing the cured phosphorescent silicone from the mold .

The eleventh invention is based on the tenth invention, and the pre-cured phosphorescent silicone poured into the silicone is left to stand, and the phosphorescent material dispersed in the pre-cured silicone naturally settles to reduce the dispersion density of the phosphorescent material. Provided is a method for manufacturing a luminous silicone marker that includes a standing substep prior to a curing substep.

A twelfth invention provides a method for producing a phosphorescent silicone marker based on any one of the ninth to eleventh inventions, wherein the hollowed out portion of the mold is dome-shaped.

Further, a thirteenth invention is based on the eleventh or twelfth invention, wherein the standing sub-step is performed while rotating and/or swinging a mold into which uncured phosphorescent silicone is poured. to provide a method of manufacturing

According to the present invention, it is possible to provide a luminous indicator for a road surface that is excellent in weather resistance and antifouling properties.

A diagram showing an example of the configuration of the phosphorescent silicone marker of Example 1. A diagram showing an example of the configuration of the phosphorescent silicone marker of Example 1. FIG. 2 is a diagram showing an example of the flow of processing related to the method for manufacturing a phosphorescent silicone marker of Example 1. FIG. A diagram showing an example of the flow of processing in the step of preparing a phosphorescent silicone body. A diagram showing an example of the configuration of a phosphorescent silicone marker of Example 2. A diagram showing an example of the configuration of a phosphorescent silicone marker of Example 3. A diagram showing an example of the configuration of a phosphorescent silicone marker of Example 4. FIG. 11 shows an example of the configuration of the gel adhesive in the phosphorescent silicone marker of Example 5. A diagram showing an example of the configuration of a phosphorescent silicone marker of Example 6. A diagram showing an example of the configuration of the phosphorescent silicone structure of Example 7. A diagram showing an example of a configuration in which no reflective layer is provided near the center of the base substrate. A diagram showing an example of the configuration of the phosphorescent silicone marker of Example 1. The figure explaining the state in which the filler accommodated in the tube etc. is inject|poured into a groove. A diagram for explaining an example of how to form a glass coating layer. The figure which shows an example of the structure which the highest part of a male screw part is exposed above the surface of a base board. A diagram for showing an example of a structure for fixing the projection to the road surface. FIG. 3 is a diagram showing an example of the shape of a luminous silicone marker having a luminous silicone body having a structure in which a plurality of luminous materials of different luminescent colors are stacked in layers.

0100 Luminous silicone marker 0110 Base substrate 0120 Reflective layer 0130 Gel adhesion layer 0140 Luminous silicone body 0150 Glass coating layer

Examples of the present invention are described below. The mutual relationship between the embodiments and the claims is as follows. Example 1 mainly relates to claims 4, 6, 7, 8, 9, etc., Example 2 mainly relates to claims 2, 10, etc., and Example 3 mainly relates to Regarding claim 1 etc., Example 4 mainly relates to claim 1 etc., Example 5 mainly relates to claim 3 etc., Example 6 mainly relates to claim 5 etc., Example 7 mainly relates to the present invention The present invention relates to inventions related to The present invention is by no means limited to these examples, and can be implemented in various forms without departing from the scope of the invention.

<Overview>
The invention of this embodiment comprises a base substrate, a reflective layer disposed on the base substrate, a gel adhesive layer disposed on the reflective layer, and a silicone body in which a phosphorescent material is dispersed and disposed on the gel adhesive layer. and a glass coating layer covering at least the phosphorescent silicone body.

<Configuration>
(general)
FIG. 1 shows an example of the configuration of the phosphorescent silicone marker of this embodiment. As shown in the figure, the phosphorescent silicone marker 0100 of this embodiment comprises a base substrate 0110 , a reflective layer 0120 , a gel adhesive layer 0130 , a phosphorescent silicone body 0140 and a glass coating layer 0150 .

(base board)
(Base substrate: general and planar shape)
The base substrate is coated with a luminous silicone structure (a reflective layer, a gel adhesive layer disposed on the reflective layer, a luminous silicone body disposed on the gel adhesive layer, and a glass coating layer coated on the luminous silicone body. The same shall apply hereinafter), and is a member for fixing this to the road surface. The shape is not particularly limited, and the one shown in FIG. 1 has a circular planar shape, but it may have, for example, a polygonal planar shape. However, in light of preferred examples of the cross-sectional shape described in the next paragraph, the planar shape is desirably a circular shape or a shape close thereto. The reason is described in the same paragraph.

(Base substrate: cross-sectional shape)
As for its cross-sectional shape, for example, as shown in FIG. 1, a plate having a basin-like depression 0111 in the center for mounting the phosphorescent silicone structure and an annular leg 0112 in the periphery shape can be considered. In the example shown in this figure, the bottom surface of the recessed portion is positioned higher than the lower end of the leg, and is configured to create a space between the bottom surface and the road surface 0100. The bottom surface of the portion may be at the same height as the lower end of the leg so that there is no space between the bottom surface and the road surface. The configuration that creates a space between the bottom surface of the recessed portion and the road surface allows the base board to be installed so that it does not rattle even if the road surface is slightly uneven because the installation part is only the lower end of the annular leg. can do. In particular, the base substrate can be installed horizontally if there is slight unevenness in the horizontal road surface. In order to install the base substrate as horizontally as possible when the road surface has some unevenness, it is conceivable to rotate the base substrate in the horizontal direction while searching for the most horizontal installation position. From such a point of view, it is desirable that the base substrate has a leg portion in a circular shape or a shape close thereto. This is because such a shape facilitates the work of searching for the most horizontal position while rotating the legs without moving the overall position of the base substrate.

(Base substrate: Depth of recess in center)
The depth of the depression in the central part of the base substrate should be appropriately designed in relation to the thickness of the reflective layer and the gel adhesion layer. In other words, it is desirable to set the depth of the recess such that the reflective layer and the gel adhesion layer are completely buried in the recess. By doing so, the adhesion interface between the reflective layer and the gel adhesion layer and the adhesion interface between the gel adhesion layer and the phosphorescent silicone body are protected by the sidewalls, and it becomes easier to prevent dust adhesion and deterioration.

(Base substrate: shape of inner wall of recess)
Also, as shown in the example of this figure, it is desirable that the inner wall 0133 of the basin-like recess is formed at an angle that inclines outward. This is achieved by forming the angle of the inner wall in this manner and by making the shape of the peripheral edge portion 0131 of the phosphorescent silicone structure slanted inward as also shown in this figure, so that a part of the phosphorescent silicone structure is formed. This is because it is easy to install in such a manner that it is housed in the recess. In such a configuration, there is a problem that dust and the like tend to accumulate in the groove formed by the inner wall of the base substrate and the peripheral portion of the phosphorescent silicone structure. This problem can be solved by injecting the liquid silicone rubber contained in the groove 1302 into the groove 1302 and curing it to form a film. A specific example of such a liquid silicone rubber is Shin-Etsu Chemical's ultraviolet curable liquid silicone rubber (product number: X-34-4184-A/B).

Furthermore, the filler may be a gel material, and a glass coating layer may be further provided on the gel material after filling.

(Base board: Other shape examples)
Note that the cross-sectional shape of the base substrate shown in FIG. 1 is merely an example, and other shapes may be used. For example, the base substrate may be flat with no recesses. Also, although there is a recess in the central portion of the base substrate, the shape of the recess may be different from that shown in FIG. 1, and the inner walls of the recess may be vertical. In this case, although the ease of attachment is inferior to the case where the inner wall is formed at an angle that slopes outward, for example, the inner wall can be attached to the vertical end face of the reflective layer and the gel adhesive layer that are housed in the recess. are in close contact with each other, there is an advantage that the adhesion of dust and the like can be suitably prevented without injecting a filler. FIG. 12 shows an example in which the inner wall 1213 of the basin-like depression is vertically formed, and the reflective layer 1220 and the gel adhesive layer 1230 are tightly accommodated in the depression.

Although illustration of other cases is omitted, after all, when there is a recess in the central portion of the base substrate, the shape of the side wall of the base substrate is (1) formed at an angle inclined outward; (2) Two cases are conceivable, namely, that the end surface of the phosphorescent silicone structure housed in the recess is (1) formed at an angle that inclines inward, and (2) that it is formed vertically. Further, the glass coating layer may be (1) a case where only the phosphorescent silicone body is coated, or (2) a case where the gel adhesive layer and the reflective layer are also coated in addition to the phosphorescent silicone body. Conceivable. Therefore, there are 8 patterns of cross-sectional shape only by combining these. Then, the optimum one can be selected from combinations including these, considering the working environment of the site, needs for antifouling property, and the like.

(Base substrate: material)
Metals such as stainless steel, aluminum, titanium, and brass are suitable for the material of the base substrate, but ceramics (fine ceramics, earthenware, glass, etc.) and hard resins (acrylic resin, polycarbonate resin, etc.) may also be used.

(Base board: configuration for installation on the road surface)
When the luminous silicone marker of this embodiment is installed on a road surface or the like, for example, a recess corresponding to the shape and dimensions of the luminous silicone marker is provided in the road surface or the like, and all or part of the base substrate is embedded therein and adhered. It can be installed using an agent or screws. FIG. 1 also shows an example in which a part of the base substrate is buried in the depression of the road surface 0101 in this way.

Alternatively, unlike the example shown in FIG. 1, projections may be provided on the bottom surface of the base substrate to be fixed by inserting them into the road surface or the like as a configuration for installing the phosphorescent silicone marker on the road surface or the like.

FIG. 2 shows an example of such a configuration. In the example of this figure, a screw hole 0211 is provided on the lower surface side of a base substrate 0210 (it may penetrate to the upper surface side), and a projection 0260 having a male screw portion 0261 is screwed into the screw hole 0211, and then the projection is attached. is inserted into the road surface and fixed. In the example shown in this figure, the top portion of the male screw is not exposed above the surface of the base board. It may be configured to be exposed on the upper side.

FIG. 15 shows an example of a configuration in which the top portion of the male screw portion is exposed above the surface of the base substrate. In particular, in the example shown in this figure, a screw head 1562 having a diameter larger than the inner diameter of the screw hole 1511 is provided at the top of the male threaded portion 1561, so that the male threaded portion is resistant to vertical swing of the base substrate. It has a structure that does not easily fall off from the base substrate. This has the advantage of being able to provide a phosphorescent silicone marker that is less likely to be destroyed by, for example, vertical shaking in an earthquake or vibrations associated with passing vehicles nearby.

As a structure for fixing the projection to the road surface, although not shown in FIGS. 2 and 15, it is conceivable to provide a non-return stopper on the outer periphery of the projection. FIG. 16 is an enlarged view of the relevant portion to show an example of such a structure. As shown in this figure, a projection receiving portion 1680 (indicated by light ink) having a shape corresponding to the shape of a projection applied to the road surface. is embedded and arranged, and the projection 1660 is inserted and fixed there. FIG. 16(a) shows the configuration of each projection and projection receiving portion before insertion and fixation, and FIG. 16(b) shows the state after insertion and fixation. A stopper 1663 having a wedge-shaped cross-section is provided on the outer periphery of the projection, and a stopper 1681 having a corresponding shape is also provided at a corresponding position of the projection receiving portion. The stopper of the receiving portion is retracted so as to be pressed to the outer peripheral side by the stopper of the projection, and after the stopper of the projection passes, the stopper of the projection receiving portion returns to its original position, thereby fixing the projection so as not to come off from the projection receiving portion. . In order to facilitate this insertion and fixation work and maintain the strength after fixation, it is desirable that the projection receiving portion be made of resin. Alternatively, unlike the example shown in this figure, a structure in which a male screw provided on the projection and a female screw provided on the projection receiving portion are screwed together may be employed.

(reflective layer)
The reflective layer is a layered member containing a reflective material placed on the base substrate, and serves to reflect light from the luminous silicone body toward the luminous silicone body, thereby improving the luminance of the luminous silicone body. . White pigments such as titanium oxide and silica are suitable for the material of the reflector. As a reflective material, a reflective film or a reflective sheet such as polyvinyl chloride (PVC), acrylic resin (PMMA), or PET can be used. white) is used.

Further, the reflective layer may not be provided near the center of the base substrate. For example, in the case where a protrusion is provided on the lower surface of the base substrate described above and is fixed by inserting it into the road surface or the like, if the screw hole penetrates to the upper surface side of the base substrate, the screw hole A reflective layer will not be formed in the part. Alternatively, as shown in FIG. 11, even if screw holes or the like are not formed in the base substrate, the reflective layer may not be provided near the center. In this case, for example, it is conceivable to provide a region 1170 in which the gel adhesive layer and the reflective layer are not arranged on the bottom surface of the portion where the thickness (indicated by h in the drawing) near the center of the phosphorescent silicone body is 1 cm or more. . This is because, in such a configuration, if the thickness of the phosphorescent silicone body near the center is large (approximately 1 cm or more), the phosphorescent material near the portion in contact with the base substrate near the center hardly emits light. This is in view of the lack of Further, in the example of FIG. 11, the gel adhesive layer is not provided in this portion, either, because there is little need to adhere the reflective layer and the phosphorescent silicone body to each other. However, it may be configured such that a gel adhesive layer is provided in this portion in order to adhere the substrate and the phosphorescent silicone body.

In the construction of mounting the base board to the road surface by providing the projections on the lower surface side of the base board described in the structure of the base board, the top of the projection having the male thread (the screw head in the example of FIG. 15) is the surface of the base board. When exposed to the upper side, the reflective layer 1520 and the gel adhesive layer 1530 generally have a donut shape with a hole near the center, as also shown in the example of FIG. When the reflective layer is formed by applying a reflective material, it is possible to save the reflective material for this portion. On the other hand, since the central part of the luminous silicone body is thick, it is possible that this part does not contribute to light emission (generally, when the thickness of the luminous body is about 1 cm or more, almost no light reaches the vicinity of the bottom, so no light is emitted. ), so it is meaningless to provide a reflective layer in this portion. Therefore, making the reflective layer into a doughnut shape does not only correspond to the case where the male screw portion is exposed on the upper side of the base substrate, but also the reflective layer on the lower side of the central portion of the phosphorescent silicone body that does not contribute to light emission. It also has a positive significance of omitting the waste of arranging the . The same applies to the gel adhesion layer described in the next section.

(Gel adhesion layer)
The gel adhesive layer is a member made of a transparent gel material that is placed on the reflective layer. The purpose is to use the tackiness and flexibility properties of the gel to press the reflective layer and the phosphorescent silicone body together without using an adhesive. In addition, by pressing the reflective material and the phosphorescent silicone body without a gap, it is possible to prevent air from entering between the reflective layer and the phosphorescent silicone body, thereby preventing attenuation of light therebetween. . In addition, since there is no need to interpose a member made of a different material such as an adhesive, it is possible to prevent the attenuation of light between the reflective layer and the phosphorescent silicone body from this point as well.

Transparent silicone-based gels and transparent acrylic-based gels are suitable as materials for the transparent gel material. The shape of the gel adhesive layer is substantially congruent with the planar shape of the reflective layer and the bottom shape of the luminous silicone body, in light of the purpose of adhering the reflective layer and the luminous silicone body in a state in which air does not enter the gap, Also, in light of its flexible properties, it is desirable that the thickness is not very thick. An example of the thickness before use is about 0.1 to 0.3 mm. The gel adhesive layer may be double-sided tape. Such a specific example will be described later in another embodiment. After disposing the gel adhesive layer on the reflective layer, when disposing the luminous silicone body, the gel adhesive layer is pressed by the luminous silicone body so as not to leave air bubbles between them. The pressing force is about 400 grams/square centimeter to 1 kilogram/square centimeter on average per unit area of the gel adhesion layer. If too much force is applied to the luminous silicone body, it may be damaged. Therefore, the risk of damage can be reduced by wrapping the luminous silicone body with a relatively soft material such as cloth and pressing it.

It should be noted that the material of the gel adhesive layer is desirably one that does not easily cause a chemical reaction with the phosphorescent silicone body. This is to prevent deterioration of the luminous performance due to the composition of the adhesive portion of the luminous silicone body being bonded to the gel adhesive layer not being the same as the composition of the other portions of the luminous silicone body.

(Luminous silicone body)
The phosphorescent silicone body is a silicone body in which a phosphorescent material is dispersed. As the phosphorescent material, for example, a strontium aluminate-based phosphorescent powder is used. The strontium aluminate-based phosphorescent powder refers to powder obtained by adding a small amount of europium (Eu), dysprosium (Dy), boron (B), etc. to a strontium aluminate salt as a mother crystal. It is desirable to use a highly transparent liquid silicone in which the phosphorescent powder is mixed. As a method of forming a luminous silicone body, for example, powdery luminous material is mixed with silicone liquid poured into a bowl-shaped, kamaboko-shaped, frying pan-shaped, or pot-shaped mold, and left to stand for a certain period of time to luminous. After the powder is precipitated, for example, it is placed on a hot plate and heated at 120 degrees Celsius for about 10 minutes, and then heat-treated at 120 degrees Celsius for about 2 hours using a hot oven (with a drying function) to harden. and removing the cured phosphorescent silicone body from the mold. In addition to the luminous material, it is also possible to mix the pigment at the same time. The hue of this pigment (multiple pigments may be mixed) determines the daytime color. The distribution state of the luminous material in the silicone body can be variously adjusted by changing the standing time. For example, by curing the phosphorescent powder before it completely settles, the phosphorescent powder and the pigments (in some cases, it is possible to independently draw a pattern with multiple pigments) can be added to the silicone body. It is possible to obtain a state of being distributed by forming an action. Also, the mold may be rotated or rocked before curing. Such a specific example will be described later in another embodiment.

Alternatively, the phosphorescent silicone body may have a structure in which a plurality of phosphorescent materials made of materials with different emission colors are stacked in layers. Various colors such as red, yellow, green, bluish green, and blue are known as the luminescent colors of phosphorescent materials. For example, Japanese Patent Application Laid-Open No. 2011-189558 discloses a luminous material in which a small amount of copper is added as an activator to zinc sulfide crystals (the emission color is yellow to red depending on its composition), and a small amount of copper is added to zinc sulfide as an activator. and a phosphorescent material (emitting green or blue) in which europium is added as an activator or a rare earth element or transition metal is added as a co-activator to an aluminate. there is Therefore, for example, it is conceivable to form a three-layered structure of red, yellow, and blue light emitting colors in order from the bottom of a phosphorescent silicone body by repeatedly pouring and curing liquid phosphorescent materials of these colors. At that time, by applying rocking or rotating during the curing process, it is possible to apply gradation within each layer or the entire layer. With such a configuration, it is possible to provide a phosphorescent silicone marker having a variety of display contents by giving a unique meaning to each color or combination thereof.

FIG. 17 is a diagram showing an example of the shape of a luminous silicone marker having a luminous silicone body having a structure in which a plurality of luminous materials having different luminescent colors are stacked in layers. In the example of this figure, a phosphorescent silicone body 1740 having a structure in which a phosphorescent material 1741 that emits red light, a phosphorescent material 1742 that emits yellow light, and a phosphorescent material 1743 that emits green light are layered in order from the bottom is arranged.

The shape of the luminous silicone body is desirably a raised shape, such as a dome shape, a hemispherical shape, a conical shape, etc., so that it can be easily seen even from an oblique direction. The one shown in FIG. 1 is also a suitable example in which the phosphorescent silicone body has a dome shape. However, in light of the purpose and location of the luminous silicone marker, if it is sufficient to warn people moving in the vicinity at a low speed, for example, the shape of the luminous silicone body may be a flat shape. may

In addition, in relation to the configuration in which projections having screw heads exposed on the upper side of the base substrate described in the description of the base substrate and the reflective layer are provided, depending on the size and shape of the screw heads, the center of the bottom surface of the phosphorescent silicone body 1540 A recess 1541 is also provided in the vicinity. According to such a configuration, there is an advantage that the material near the bottom of the thick portion of the phosphorescent silicone body that does not contribute to light emission can be saved.

(Combination of shapes of base substrate, reflective layer, gel adhesive layer, and phosphorescent silicone body)
As described above, in the configuration in which the protrusions to be embedded in the road surface are provided on the lower side of the base substrate, the combination of the shapes of the base substrate, the reflective layer, the gel adhesion layer, and the phosphorescent silicone body, that is, (1) the protrusions is attached to the screw hole provided in the center of the base substrate, and the screw head of the projection is designed to have a size that cannot penetrate the screw hole; (3) The configuration in which a recess is provided near the center of the bottom surface of the phosphorescent silicone body is integrated, and the phosphorescent silicone body is less likely to be destroyed by the vertical swing of the base substrate while eliminating waste of materials. The advantage of being able to provide a silicone marker can be exhibited.

(glass coating layer)
The glass coating layer is a layered member made of glass that covers all or part of the surface of the phosphorescent silicone structure to protect it from scratches, wetness and dust. In particular, the phosphorescent silicone body is vulnerable to these damages, etc., and the damage leads directly to inhibition of light emission at high brightness. Therefore, it is essential that the glass coating layer covers at least the phosphorescent silicone body.

As shown in FIG. 1, when the inner wall of the bowl-shaped recess is formed at an angle that inclines outward and the peripheral edge portion of the phosphorescent silicone structure is formed so as to incline inward, the phosphorescent silicone body Even in the case of covering only, it is desirable to prevent the end surfaces of the gel adhesive layer and the reflective layer from being directly exposed to the outside air. Therefore, an example of the configuration in such a case will be described with reference to the drawings.

FIG. 14 is a diagram for explaining an example of a method of forming a glass coating layer. The range shown in this figure corresponds to the portion indicated by the dashed circle 0102 in FIG. As shown in this figure, the glass coating layer is provided so as to form a liquid pool in the valley formed by the inner wall of the basin-like depression and the inwardly inclined surface of the phosphorescent silicone layer. As a premise for this, in the example of this figure, a method of applying liquid glass having a certain degree of viscosity is used as the glass coating method (the details of the glass coating method will be described later).

In the example of FIG. 14(a), the glass coating layer 1450 (indicated by thin ink) is arranged so as to completely fill the valley to the bottom of the valley. As a result, the glass coating layer not only completely covers the phosphorescent silicone body 1440 , but also completely covers the edge surfaces of the gel adhesive layer 1430 and the reflective layer 1420 . Therefore, the end surfaces of the gel adhesive layer and the reflective layer are protected from scratches, water, and dust.

On the other hand, in the example of FIG. 14(b), the glass coating layer 1450 (indicated by thin ink) does not completely fill the valley to the bottom of the valley, creating a space where the glass coating layer is not arranged at the bottom of the valley. This may occur when the liquid glass has a high viscosity. In this case, the glass coating layer 1450 may completely cover the phosphorescent silicone body 1440, while the end surfaces of the gel adhesive layer 1430 and the reflective layer 1420 may not be covered (this example is such an example). However, even in this case, the end surfaces of the gel adhesive layer and the reflective layer are, so to speak, sealed under the glass coating layer and are not exposed to the outside air. For this reason, the end faces of the gel adhesive layer and the reflective layer are also protected from scratches, wetness and dust.

14(a) and 14(b), the glass coating layer protects the end surfaces of the gel adhesive layer and the reflective layer from scratches, water, and dust. , and the positional relationship between the end face of the glass coating layer, the gel adhesive layer, and the end face of the reflective layer.

That is, as shown in FIG. 14A, G is the road surface, A is the top of the side wall of the base substrate, B is the upper end of the end face of the gel adhesion layer, and B is the lower end of the end face of the gel adhesion layer (upper end of the end face of the reflective layer). C, where D is the lower end of the end face of the reflective layer, the lowest position H of the valley of the glass coating layer is lower than A and higher than B, C and D. (GA>GH, GH>GB, GH>GC, GH>GD). With this structure, the valleys can be filled without the liquid glass flowing out of the side walls of the base substrate during the formation process of the glass coating layer. A liquid pool can be formed that completely fills the valley up to the position H with the glass coating layer. In the case of FIG. 14(b) as well, a liquid pool can be formed at a position higher than B to seal the valley.

On the other hand, if the gel adhesive layer or the reflective layer is also exposed on the base substrate, the glass coating layer is preferably configured to cover the exposed gel adhesive layer and the reflective layer. . A specific example thereof will be described later in another embodiment.

As a method of glass coating, for example, normal temperature glass coating is used. Room temperature glass coating is a coating method that forms a glass coating at room temperature (approximately room temperature to 200 ° C.) and does not require a high-temperature heat treatment step in the conventional glass manufacturing process. Specifically, for example, , a room temperature glass coating system (trade name: SL-600 series) available from Cosmo Technology Co., Ltd. can be used. Normal temperature glass coating has excellent weather resistance and antifouling properties, as well as excellent water resistance and abrasion resistance. In light of the fact that it is easily stepped on by people, etc., it is an extremely suitable method as the glass coating method according to the present invention.

Examples of materials for room-temperature glass coating include alcohol-soluble organosilicon compounds and other metal compounds (organic and inorganic). More specifically, the silicon component (SiO ₂ ) contained in the component is 60% by weight or more in terms of conversion, and pigments, aggregates, etc. are blended as necessary. Components include a liquid solvent-free organopolysiloxane, functional side-chain alkoxysilanes, ionized metal compounds (organic and inorganic), and catalysts. The glass coating layer may be formed in a plurality of times using a spray or the like, or the viscosity of the liquid glass may be adjusted to increase the thickness that can be applied in one application, thereby reducing the number of applications. In order to increase the viscosity, it is conceivable to increase the content of the silicon component. For example, if it is about 70% to 80% in terms of weight percent, a sufficiently thick glass layer can be formed even on a dome-shaped phosphorescent silicone body. The thickness can be about 0.3 mm to 0.7 mm at about 70%. Aside from the case where a large force is applied from above, the thickness of this level can ensure sufficient weather resistance. Moreover, since it is not too thick, it transmits ultraviolet rays to some extent, and does not interfere with energy supply to the amount of the phosphorescent material.

<Process flow>
FIG. 3 is a diagram showing an example of the flow of processing related to the method for manufacturing a phosphorescent silicone marker of this embodiment.
First, in base substrate preparation step S0301, a base substrate is prepared.
Next, in a reflective layer placement step S0302, a reflective layer is placed on the base substrate.
Next, in gel adhesion layer arrangement step S0303, a gel adhesion layer is arranged on the reflective layer.
Next, in step S0304 for preparing a phosphorescent silicone body, a phosphorescent silicone body in which a phosphorescent material is dispersed in silicone is prepared.
Next, in a step S0305 for placing a phosphorescent silicone body, the prepared phosphorescent silicone body is placed on the gel adhesive layer.
Next, in a glass coating layer coating step S0306, at least the phosphorescent silicone body is coated with a glass coating layer.

The phosphorescent silicone body preparation step S0304 described above may further include the following substeps, as shown in FIG. First, in pre-cured phosphorescent silicone mold sub-step S0401, phosphorescent silicone, which is silicone in which a phosphorescent material before curing is dispersed, is poured into a mold. The shape of the mold can vary depending on the shape of the phosphorescent silicone body. For example, when the phosphorescent silicone body is dome-shaped, the mold used has a dome-shaped portion that is hollowed out. Next, in a curing substep S0402, the phosphorescent silicone poured into the mold is cured. Further, in a mold release substep S0403, the cured phosphorescent silicone is released from the mold. The processing in these light-storing silicone body preparation steps may be performed before the base substrate preparation step instead of after the gel adhesive layer placement step.

Furthermore, although not shown, in the phosphorescent silicone body preparation step, before the curing sub-step, the poured pre-cured phosphorescent silicone is left to stand and the phosphorescent material dispersed in the pre-cured silicone naturally settles to produce phosphorescent material. It may have a leave substep to vary the dispersion density of the material within the silicone.

<effect>
According to the invention of this embodiment, it is possible to provide a luminous indicator for a road surface that is excellent in weather resistance and antifouling properties.

<Overview>
This embodiment is basically in common with the first embodiment. However, in this embodiment, the phosphorescent silicone body is characterized in that the density of the phosphorescent material on the outer surface side is higher than the density of the phosphorescent material on the central portion side.

<Configuration>
FIG. 5 is a diagram showing an example of the configuration of the phosphorescent silicone body in this embodiment, and is a vertical cross-sectional view of the vicinity of the central portion. As shown in this figure, in the phosphorescent silicone body 0540 of this embodiment, the distribution density of the phosphorescent material (indicated by dots) on the outer surface side is relatively high, and the distribution density of the phosphorescent material on the central portion side is relatively high. Relatively sparse. That is, the density of the phosphorescent material on the outer surface side is higher than the density of the phosphorescent material on the central portion side. The central portion of the luminous silicone body is the farthest portion from the surface of the luminous silicone body, and according to the example of FIG. part). The outer surface side refers to a portion of the phosphorescent silicone body that is relatively closer to the outer surface than the central portion, and the central portion side refers to the portion that is relatively closer to the central portion than the outer surface.

The configuration of this embodiment is based on the fact that if the amount of the phosphorescent material is the same, it is possible to further increase the luminous brightness of the phosphorescent silicone body by distributing a larger amount of the phosphorescent material closer to the outer surface. be. In order to form a phosphorescent silicone body having such a configuration, it may be manufactured using, for example, the procedure described in the next paragraph, "Process flow."

<Process flow>
(general)
As described above, in order to form the phosphorescent silicone body, in the standing substep of the phosphorescent silicone body preparation step, the phosphorescent silicone, which is silicone in which the phosphorescent material before curing is dispersed, is poured into a mold and left to cure. However, at that time, in order to make the density of the phosphorescent material on the outer surface side higher than the density of the phosphorescent material on the central part side, in the standing substep, the mold into which the phosphorescent silicone before curing is poured is rotated. You should do it like this. Due to the rotation, more luminous material can be distributed on the left and right surface sides of the luminous silicone body due to centrifugal force. Further, by standing the luminous silicone body with the top side down, more luminous material can be distributed on the top surface side. Furthermore, by adjusting the rotation speed, rotation time, and standing time, the way of distribution can be changed. In addition, by appropriately applying rocking motion, it is possible to adjust the manner of distribution of the phosphorescent material in the phosphorescent silicone body.

<effect>
According to this embodiment, since more of the luminous material can be distributed closer to the surface side of the luminous silicone body, the luminescence brightness of the luminous silicone body can be relatively increased.

<Overview>
This embodiment is basically in common with the first or second embodiment. However, the phosphorescent silicone marker of this embodiment is characterized in that the glass coating layer is constructed so as to cover the boundary portion exposed on the outer surface between the phosphorescent silicone body and the gel adhesive layer.

<Configuration>
FIG. 6 is a diagram showing an example of the configuration of the phosphorescent silicone marker of this embodiment. As shown in this figure, in this embodiment, unlike the first embodiment shown in FIG. A gel adhesive layer 0630 and a reflective layer 0620 are also coated.

By configuring in this way, the end faces of the gel adhesive layer and the reflective layer appearing on the surface of the phosphorescent silicone structure can also be covered, and the weather resistance and antifouling properties of the phosphorescent silicone structure can be increased. In particular, such a coating is extremely effective on the end face of the gel adhesion layer, since dust tends to adhere to the end face due to the adhesive force of the gel. In order to form this glass coating layer, it is conceivable that the liquid glass is allowed to stay in a minute step (annular dent) generated at the interface between the gel adhesive layer and the reflective layer by capillary action and then dried. It is also conceivable to rotate the axis of the ring in a direction parallel to the ground instead of simply placing the dome top up and drying it while rotating it around the axis. This is because it becomes difficult for the liquid glass to flow out from the annular dent.

<effect>
According to the invention of this embodiment, weather resistance and antifouling properties can be further increased.

<Overview>
This embodiment is basically the same as the first to third embodiments. However, the luminous silicone marker of this embodiment is characterized in that a gel covering portion is further provided under the glass covering layer at the interface exposed on the outer surface of the luminous silicone body and the gel adhesion layer. There is

<Configuration>
FIG. 7 is a diagram showing an example of the configuration of the phosphorescent silicone marker of this embodiment, showing an enlarged view of a portion roughly corresponding to the portion indicated by the dashed circle 0102 in FIG. However, in this figure, unlike the place shown in FIG. 1, a gel covering portion 0760 is further provided under the glass covering layer 0750 at the boundary exposed on the outer surface of the phosphorescent silicone body 0740 and the gel adhesive layer 0730. ing.

The purpose of such a configuration is to avoid the risk of dust collecting in corners and gaps of the junction between the phosphorescent silicone structure and the base substrate, and water entering therethrough. The reason why it is arranged below the glass covering layer is to prevent dust from adhering to the adhesive gel covering portion. However, at the contact interface between the gel-coated part and the glass, if there is too much moisture on the gel surface, the hardening of the liquid glass at that part may be delayed. It is conceivable to dry Drying is carried out by blowing dry air of about 70°C to 120°C with a dryer or the like. If the dome radius is about several centimeters, drying can be done in an instant, so the drying time is about 1 to 2 seconds, and even if the gel layer is thick, about 3 seconds is sufficient.

<effect>
According to the invention of the present embodiment, it is possible to avoid the possibility that dust will accumulate in the corners and gaps of the junction between the phosphorescent silicone structure and the base substrate, and that water will enter therethrough.

<Overview>
This embodiment is basically in common with the first to fourth embodiments. However, the phosphorescent silicone marker of this embodiment is characterized in that the gel adhesive layer is composed of double-sided tape.

<Configuration>
FIG. 8 is a cross-sectional view showing an example of the configuration of the gel adhesive in the phosphorescent silicone marker of this example. As shown in this figure, the gel adhesive 0830 of this embodiment is a double-sided tape and has a double structure. More specifically, a transparent silicone rubber 0801 is arranged in the central part, and a transparent silicone adhesive 0802 is arranged in the upper and lower layers in direct contact with this. Release films 0803 are arranged in the upper and lower layers. By using such a double-faced tape, the pressure bonding between the reflective material and the phosphorescent silicone body can be performed more reliably, and the pressure bonding can be performed with a simple operation.

The material of the double-sided tape is desirably a silicone-based gel material that is excellent in heat resistance, durability, and cushioning properties. The configuration shown in FIG. 6 is also an example of the product.

<effect>
According to the invention of the present embodiment, the crimping of the reflective material and the phosphorescent silicone body can be performed more reliably, and the crimping can be performed by a simple operation.

<Overview>
This embodiment is basically in common with the first to fifth embodiments. However, the phosphorescent silicone marker of this embodiment is characterized in that characters, figures, symbols, colors, or a combination thereof, which can be visually recognized by humans, are drawn on the surface of the phosphorescent silicone body. be.

<Configuration>
FIG. 9 is a diagram showing an example of the configuration of the phosphorescent silicone marker of the present embodiment, showing a state in which characters 0941 are drawn on the surface of a phosphorescent silicone body 0940. As shown in FIG. This figure shows an example in which characters are drawn, but figures, symbols, colors, or a combination of these may be used. All you have to do is

The purpose of this embodiment is to make it possible to specifically convey the contents of a warning or the like by means of characters or the like drawn thereon, in addition to the presence of the phosphorescent silicone marker itself. For example, if a luminous silicone marker is installed at the boundary between a roadside ditch and a road shoulder to warn of the danger of falling, the presence of the luminous silicone marker alone will provide a sufficient warning display. It is conceivable to add characters such as "stop" or "danger of falling". For this reason, when drawing figures, symbols, and colors, it is desirable to draw what has been given meaning in advance. For example, it is conceivable to draw a square, a "!" symbol, or a red color with the meaning of "stop" added in advance.

As a configuration for drawing characters, for example, a reflective material such as a reflective tape or a reflective sheet is placed on the surface of the phosphorescent silicone body so as to draw the shape of the character, or a non-translucent tape or sheet is used. It is conceivable to place

<effect>
According to the invention of this embodiment, in addition to the presence of the phosphorescent silicone marker itself, it is possible to specifically convey the content of the warning or the like by the meaning of the characters or the like drawn thereon.

<Overview>
This embodiment is intended to provide a luminous silicone structure comprising a reflective layer, a gel adhesive layer, a luminous silicone body and a glass coating layer among the components of the luminous silicone marker described above. That is, the phosphorescent silicone structure according to this example is a phosphorescent silicone marker excluding the base substrate.

<Configuration>
FIG. 10 shows an example of the configuration of the phosphorescent silicone structure of this example. As shown in the figure, the phosphorescent silicone structure 1060 of this embodiment has a reflective layer 1020, a gel adhesive layer 1030 arranged on the reflective layer, and a phosphorescent material arranged on the gel adhesive layer dispersed. It consists of a phosphorescent silicone body 1040, which is a silicone body, and a glass coating layer 1050 covering the phosphorescent silicone body. In other words, the configuration of the phosphorescent silicone structure of this example is the same as that of the phosphorescent silicone marker described in Examples 1 to 6 except for the substrate. However, the phosphorescent silicone structure of this example can be an independent product in itself, and from the viewpoint that it is easy to maintain its shape, the lowermost reflective layer is composed of a reflective tape, a reflective sheet, or the like. It is desirable that However, there is no problem even if the gel adhesive layer is coated with a reflective paint.

For example, the phosphorescent silicone structure of this embodiment can be used by being directly attached to the road surface, but as a more characteristic method of use, it is used on surfaces other than the road surface (thus, it is used for purposes other than stumbling and falling prevention). In particular, it is conceivable that it can be detachably attached to an indoor wall or the like. In this case, for example, a magnet may be attached to the lower surface of the reflective layer so that it can be attached to a metal wall, or the reflective layer itself may be made of magnetic paint.

<effect>
According to the invention of this embodiment, it is possible to provide a phosphorescent silicone structure that can be detachably installed in a wide range of applications other than the purpose of preventing stumbling on a road surface.

Claims (10)

a tray-shaped base substrate having a depression in the center and a peripheral wall in the peripheral edge ;
a reflective layer disposed on the base substrate;
a gel adhesion layer disposed on the reflective layer;
a phosphorescent silicone body, which is a silicone body in which a phosphorescent material is dispersed and which is disposed on the gel adhesive layer;
a glass coating layer covering at least the phosphorescent silicone body;
A luminous silicone marker consisting of
The glass coating layer also covers the boundary exposed on the outer surface between the phosphorescent silicone body and the gel adhesive layer,
It is the lower layer of the glass covering layer at the boundary exposed on the outer surface of the phosphorescent silicone body and the gel adhesive layer, and is sandwiched between the inner wall of the peripheral wall of the base substrate and the outer surface of the phosphorescent silicone body and the gel adhesive layer. A phosphorescent silicone marker in which a gel coating is further provided in the space . 2. The light-storing silicone marker according to claim 1, wherein the light-storing silicone body has a density of the light-storing material on the outer surface side higher than a density of the light-storing material on the central part side. 3. The luminous silicone marker according to claim 1 , wherein the gel adhesive layer is a double-sided tape. 4. The luminous silicone marker according to any one of claims 1 to 3, wherein the luminous silicone body has a dome shape. 5. The luminous silicone according to any one of claims 1 to 4, wherein the surface of the luminous silicone body is drawn with characters, figures, symbols, colors, or a combination thereof that can be visually recognized by humans. marker. a base substrate preparation step of preparing a tray-shaped base substrate having a recess in the center and a peripheral wall in the peripheral portion ;
a reflective layer placement step of placing a reflective layer on the base substrate;
a gel adhesion layer disposing step of disposing the gel adhesion layer on the reflective layer;
a phosphorescent silicone body preparation step of preparing a phosphorescent silicone body in which a phosphorescent material is dispersed in silicone;
a luminous silicone body placing step of arranging the prepared luminous silicone body on the gel adhesion layer;
a glass coating layer coating step of coating at least the phosphorescent silicone body with a glass coating layer;
A method for producing a luminous silicone marker comprising:
The glass coating layer covering step includes a boundary covering substep of also covering the boundary exposed on the outer surface between the phosphorescent silicone body and the gel adhesion layer;
It is the lower layer of the glass covering layer at the boundary exposed on the outer surface of the phosphorescent silicone body and the gel adhesive layer, and is sandwiched between the inner wall of the peripheral wall of the base substrate and the outer surface of the phosphorescent silicone body and the gel adhesive layer. and a gel covering installation substep of further providing a gel covering in the space.
A method for producing a phosphorescent silicone marker. The phosphorescent silicone body preparation step includes:
a pre-cured phosphorescent silicone molding sub-step of pouring a pre-cured phosphorescent silicone, which is silicone in which a phosphorescent material is dispersed before curing, into a mold;
a curing substep for curing the phosphorescent silicone cast into the mold;
an ex-mold substep of removing the cured phosphorescent silicone from the mold;
The method for producing a phosphorescent silicone marker according to claim 6 , comprising: Further, a leaving sub-step is performed before the curing sub-step to allow the phosphorescent material dispersed in the pre-cured silicone to naturally sediment to make the distribution density of the phosphorescent material different in the silicone by allowing the poured pre - cured phosphorescent silicone to stand. 8. The method for producing a phosphorescent silicone marker according to 7 . 9. The method of manufacturing a luminous silicone marker according to claim 6 , wherein the mold has a dome-shaped hollowed portion. 10. The method of manufacturing a luminous silicone marker according to claim 8 , wherein the leaving sub-step is performed while rotating and/or rocking the mold into which the uncured luminous silicone is poured.

Images