JPS60226959A - Light emitting tile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] With the development of cities, the use of underground areas such as subway platforms, underground passages, and underground shopping streets has become active, but it is obvious that a state of panic will occur when a power outage occurs. It is well known that emergency lights with built-in storage batteries are installed.

Such emergency lights also have problems in that they may not be useful in emergencies if they are poorly maintained on a daily basis, and the time they can be turned on is also limited.

Therefore, the present invention was devised to solve these problems, and provides a luminescent effect to tiles that are attached to floors and walls.

As a material that has a luminescent effect, a phosphorescent material that continues to emit phosphorescence for a certain period of time even after irradiation with light is stopped has been known.

Luminescent material is a sulfide of alkaline earth metals such as zinc, and it deteriorates at high temperatures and loses its phosphorescent effect, so it cannot be mixed with tile glaze and baked into clay.

Therefore, in the present invention, as shown in FIG. 1, a luminescent synthetic resin layer (2) is formed on the surface of an unglazed unglazed tile (1).

Example (1) For the luminescent synthetic resin layer (2), 10 parts of an inorganic phosphorescent pigment and 60 to 70 parts of transparent glass powder were mixed into 20 to 30 parts of an epoxy resin containing a curing agent, and the mixture was thoroughly stirred. , coat the surface of the tile (1) with a film thickness of 2 to 3 m/m.

Then, it was heated and cured in a preheated (120°C) furnace for about 120 minutes, and then heated in a 160-230°C furnace for 3-24 minutes.
After curing for a period of time, a hard and shiny luminescent tile can be obtained.

In this case, epoxy resin is used as the synthetic resin because it is hard and has good transparency, and mixing transparent glass powder with epoxy resin has the effect of increasing the flame retardance of the cured resin. The specific gravity of the inorganic phosphorescent pigment is 41, which is heavier than the epoxy resin, which prevents the phosphorescent pigment from settling to the bottom during the resin curing process, and at the same time keeps the phosphorescent pigment dispersed around the transparent glass powder and in its voids. This is the only way to fully demonstrate the performance of phosphorescent pigments.

Example (2) As shown in Figure 2, a mixture of 1 to 1.5 brains (3), which is a mixture of 20 to 30 parts of epoxy resin and 10 to 15 parts of an inorganic luminescent pigment, was applied to the surface of the tile (1). It is applied to a film thickness, and transparent fused alumina powder (particle size of 350 to 1200μ) (4) is evenly sprinkled thereon. The sprinkled molten alumina powder (4) is buried in the epoxy resin or exposed on the surface, and is strongly fixed as the resin hardens while remaining irregularly arranged. Furthermore, there is a thin resin coating (5) on top of that.
form.

Fused alumina is an inorganic material whose hardness is second only to diamond, and fused alumina fixed on tiles forms a strong non-slip surface.

Further, transparent fused alumina has good light transmittance, does not impair the function of storing and emitting light, and also has the effect of improving brightness by diffusely reflecting light when emitting light.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of one embodiment of the light-emitting tile of the present invention, and FIG. 2 is a cross-sectional view of another embodiment. 1... Unglazed tile 2.3... Luminescent synthetic resin layer 4... Fused alumina powder 5... Resin coating film

Claims (2)

[Claims] (1) A luminescent tile characterized by forming a synthetic resin layer mixed with a phosphorescent material on the surface of a ceramic tile. (2) A luminescent tile according to claim 1, in which fused alumina powder is dispersed and fixed on the surface.