JPS60137862A - Fluorescent 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] TECHNICAL FIELD This invention relates to tiles with luminescent properties.

Luminous products are commercially available that have the property of accumulating light from sunlight, fluorescent lights, etc. and continuing to glow in the dark even after the light source has disappeared (for example, after a power outage), making it safer during power outages. It is used for various purposes to ensure safety. For example, it is mixed with plastic to make a sheet-like or plate-like product, which is then cut into the desired shape or character and pasted onto concrete or the like. It can also be mixed with liquid synthetic resin and applied as a luminescent paint.

However, these luminescent products have various problems such as reduced luminescence due to abrasion, are easily combustible, do not have sufficient adhesion and easily fall off, and are expensive, making them difficult to use. limited.

As a result of the inventors' studies to compensate for the shortcomings mentioned in Ail,
This invention has been completed.

This invention is a luminescent tile that is composed of three components: an inorganic filler, a luminescent face (t"), and a synthetic resin, and in which the inorganic filler is approximately 50"JJl or more in the aR of the tile.

The tiles of the present invention have luminescent properties. A tile refers to an article that is used on an adherend such as a board, a floor, a wall, a ceiling, a passage, etc. The tile of the present invention may have a flat surface of 7°17, but may have an uneven pattern. Yo(·.

The difference between the peaks and valleys of the uneven pattern is about Q, 5 am, preferably about 1 to 7 am. The shape of the pattern may be ripples, cylinders, rectangular parallelepipeds, spherical shells, hemispheres, etc., and is not particularly limited. The pattern should be applied to the surface of the tile σ) with regularity. When the convex portion is made luminescent, one emitted light is less likely to be blocked by dirt.

When the uneven pattern is provided, the amount of expensive phosphorescent pigment used is small, which is not only economical, but also provides excellent wear resistance of the light emitting part (1). A certain degree of visibility in uneven patterns, for example.

Having a concave-convex pattern suitable for a single-person tile, an arrow (→), verbal features such as "emergency exit", etc., has the advantage of indicating an evacuation route and its direction in darkness after a power outage, such as in an underground passage. The use of the tiles of the invention as blind tiles is of particular significance.

Blind tiles are placed in walkways, and the textured pattern on the surface of the tiles usually indicates safe passage to blind people. If the tiles of the present invention, which have an uneven pattern suitable as tiles for blind people, are used in passageways such as underpasses, large buildings, and tunnels, they can be used by blind people in darkness after a power outage. Even the most cunning can be shown a safe passage.

Tiles can be placed on boards, walkways, etc. using synthetic resin adhesives, cement, concrete, etc.

In order to make lamination easier, it is best to add unevenness to the back side of the tile.

The light emitting part (1) can be formed from a transparent synthetic resin and a luminescent substance such as a luminescent pigment.

Luminescent pigments are substances that emit phosphorescence, and include, for example, artificial alkaline earth metal sulfides (calculum sulfide, stonetium sulfide, barium sulfide), zinc sulfide, etc. as main components, and trace amounts of heavy metals ( When a small amount of radioactive elements such as radium are added to these phosphorescent pigments, which are phosphorescent materials containing manganese, copper, lead, zinc, etc., the radiation retains the phosphorescence for a long time and continues to emit light in the dark.

Zinc sulfide phosphors, which are made of zinc sulfide as a matrix, added with a trace amount of copper as an activator, and mixed with an alkali metal flux and fired, are more sensitive to sunlight than alkaline earth metal sulfides. It has stability such as not easily turning black. The luminescent pigment is about 0.2 to 50% by weight in the luminescent part (1)
Preferably, about 1 to 35 weights more is used. If it is below the above range, the luminescence will be reduced to such an extent that it cannot be put to practical use, and if it is above the above range, the advantages of the tile of the present invention, such as its wear resistance, are likely to be lost. One is a synthetic resin with excellent transparency. Specifically, furan resin, epoxy resin, unsaturated polyester resin, urethane resin,
78. Polystyrene resin, methacrylic resin, etc. , the greater the transparency of the synthetic 11 fat, the greater the luminance of the tile. When the tile of the present invention is manufactured by mixing a polymerizable synthetic resin that is liquid at room temperature (10 to 35 ° C.) with other components used in the present invention, and then subjecting the resin to a polymerization reaction using a curing catalyst, Synthetic resins particularly preferred for use, which are easy to contain a large amount of inorganic filler, are unsaturated polyester resins and methacrylic resins. Unsaturated polyester resin is made by mixing a vinyl compound such as styrene with an unsaturated polyester obtained by a polycondensation reaction of a glycol compound and an unsaturated dicarphonic acid.

It is a resin that can be cured by causing crosslinking through a polymerization reaction using a catalyst. When unsaturated polyester resin is used, the surface hardness of the tile is high. A polymerizable mixed solution of a methyl methacrylate polymer and a monomer mainly composed of methyl methacrylate (hereinafter referred to as "acrylic syrup") is subjected to a reaction using a catalyst to give a methacrylic resin. By using methacrylic resin, it is possible to easily obtain tiles that have excellent properties such as water distribution, Il' iron properties, and luminance. In the methacrylic resin, the methyl methacrylate colocalization should be about 50% MC or more. As the acrylic syrup, it is preferable to use one containing a methyl methacrylate polymer of about 5 to 40 mm and a solution viscosity of about 0.5 to 30 poise at 25"C.As the catalyst, 1ri11eFl-, :111M
U-benzoyl, lauryl peroxide, azobisiso7
Radical polymerization catalysts such as tyronitrile.

The radical polymerization catalyst is jl'L or other products T1
Can be used in combination with redox thickness [medium,
For example, when a combination of a percarbonate such as perbranched benzoyl and a tertiary amine such as N,N-dimethylaniline is used, unsaturated polyester resin liquid and acrylic syrup can be produced not only under heating but also at room temperature (10 to 35°C). Can be cured in a short time. The synthetic 4QJ fat is used in an amount of about 5 to 40%, preferably about 10 to 30% of the total weight of the tile.

Other ingredients used in this 5j-light are inorganic fillers.

I3 Filled with minerals other than the 9th period January ingredients 1':= 'N is calcium carbonate, sulfur (i2 barium, talc, talc,
These include kaolin, alumina, alumina water, mica, river sand, silica sand, inorganic glass powder, crushed limestone, crushed serpentine, and the like, and these can be used alone or in combination of two or more. During the total installation of tiles, the amount of inorganic filler is approximately 50 tons), 1%
, preferably about 70% by weight or more. When used in such a large amount, the tiles of the present invention are given properties such as side abrasion resistance and flame retardancy. Since it is difficult to block light, the luminance is low.Inorganic materials with an average diameter of 0.2I+III+ or more, such as highly transparent silica sand or limestone, containing about 50% by weight or more of carbonates of silicon dioxide and calcium. If commercial use is used, the luminescence will be 215++ 1!): thick. Other preferred inorganic fillers for use are hydrated fine-grained inorganic powders. Specifically, calcium sulfate 2 water) 1 product,
Basic magnesium carbonate dihydrate, alumina trihydrate, etc., and mixtures of these hydrated fine inorganic powders with unsaturated polyethral resin, methacrylic resin, etc., have lower luminescence brightness than calcium carbonate, etc. It is easy to become a dog, and it is true 6
It also significantly improves the flame propagation resistance (flame retardance) of light tiles.

Although it is not absolutely necessary to add 74i\ of inorganic filler to the light emitting part (1), the total - of the light emitting part +1+; during the daytime, about 50
If it is included, preferably about 70 mm per month or more, the abrasion resistance and flammability of the light emitting part will be affected.
I have a penchant for things.

The tiles of the present invention can also be manufactured by a molding method such as a hot press method or an extrusion method;
It may be produced by pouring a mixture containing 11 fat and liquid onto the surface of a mold and curing the mixture at room temperature or under heat.

As shown in the figure, it is best to provide a light-emitting part only in the I") rk part of the tile. If the thickness is about 0.5 mm or more, preferably 1 to 10 beads, 1 liter iψ wear resistance is a practical problem. Not only is the amount of expensive phosphorescent pigment used small, it is not only economical, but it is also possible to manufacture tiles with excellent flammability, dimensional stability, etc. Luminescent〇l1 layer (1) and base layer (2) does not require the use of adhesive;
The mixture forming the base layer (2) is poured onto the mixture forming the base layer (2) and cured to easily form an integral layer.

The luminescent tile of the present invention, which contains a large amount of inorganic filler, exhibits extremely excellent luminescence,
The disappearance of external light trails (e.g. after a power outage) also releases a large amount of luminescent light in the dark. In addition, it has extremely excellent 1liJ strength and flame retardancy, making it suitable for use as emergency A;I removal signage tiles in underground passages, tunnels, movie theaters where the public gathers, first- and second-high buildings, basements, etc. . Moreover, the disappearance of external light sources such as electric lights is also 11j! In the old days, the nice play effect was also destroyed by Jōlji or σ, which emitted light for a certain period of time, and could also be used as Ungetsu no Miyakoki.

Other M'x additives may be added to the tile of the present invention, such as metal powders, fibers, etc., shield coloring agents such as dyes and pigments, light and heat stabilizers,
Other synthetic 4v IL viscosity! It is possible to match the purpose of use by adding a D'J conditioning agent or by using reinforcements such as reinforcing bars or iron plates.

Furthermore, if the surface of the tile of the present invention is coated with a transparent resin by painting or the like, the durability of the light emitting layer can be improved.The present invention will be explained in more detail below with reference to Examples. Parts and parts are parts by weight and parts by weight.

In addition, in the following examples, the polynisple resin liquid, acrylic syrup, and phosphorescent pigment refer to the following.

Not Pi! l) flI polynisful resin liquid; unsaturated polynisful resin liquid having a viscosity If at 25°C of 8 voids and containing styrene diammonium and naphthenic cobalt.

/ Krylic syrup; viscosity at 25"C is 2 voids, consisting of 25 liters of methyl methacrylate and 75 ml of methacrylate (1 solution. However, N, N- Contains dimethyl-7-niline.

Phosphorescent M 1; Copper-containing valued zinc phosphor with imitation 1k)
The powder has a ratio of 4.1 and all of the powder passes through an 80 sieve sieve.

Example 1 A tile having the cross-sectional structure shown in Fig. 3 was constructed as follows:
Created by

Unsaturated polynisdel (g1 fat liquid 9o, phosphorescent pigment 9ch,
A mixture consisting of methyl ethyl ketone bicarbonate →) and ide was poured into a mold. Then, a mixture consisting of 14 volumes of 411 polyester IH fat liquid, 16% of calcium carbonate, 69% of crushed calcite, and 0.1% of methyl ethyl ketone peroxide was poured thereon. The mixture was heated to 25°C
It was cured in about 60 minutes under a warm atmosphere to form a base layer (2). After 12 hours, remove the mold and make a piece with a width of 300 x 300 mm and a thickness of 2.
I took my tile. It has a light-emitting part (1) with a thickness of 5 mm on the surface, and a light-emitting part (1) with a thickness of 15 mm.
The base layer (2) of the dragon was an integrally laminated tile.

The words ``Exit'' were painted on the surface of the tiles using synthetic resin paint, and then attached to the artificial walls of the basement using epoxy resin adhesive.

It glows for about an hour in the dark after 1.51 Tora 1, and after dark 14
At 1st floor, I let people know the direction of the exit. The tile was flame retardant and had an aesthetic rating of 9 because of its tile shape.

Example 2 A blind person tile having the section i (u structure shown in FIG. 2) was manufactured as follows.

15% acrylic syrup, 9% phosphorescent pigment, 75% borax,
A mixture consisting of 0.1% benzoyl peroxide and a small amount of yellow pigment was poured onto the convex portion of the mackerel to form a light emitting portion fl). Then, a mixture consisting of the yellow dye of 1 and methyl ethyl alcohol and amber oxide was poured onto the light emitting part (1). Hardens in about 60 minutes, 6
After a while, the base layer is about 14 thick (2)
A tile with an integrated light emitting part (11) was obtained.The size of the tile was 3 (10 x 300 mm, maximum IV-2
It was 0mm. The 5 mm high truncated sphere-shaped protrusions (3) are luminescent, and each tile has 25 truncated sphere-shaped protrusions (3).
), and the spacing of the protrusions was in the order of 30, making it suitable as a blind person tile. The tiles were laminated with cement mortar over the passageway of the underground passage. Under normal conditions, it has the function fi1 as a blind person tile, and after a power outage,
It glows for about 60 minutes in the dark, indicating the location of the evacuation route σ) 1lji, which is safe for non-blind people. The light-emitting part (1) of the tile showed almost no abrasion even after 6 months of foot traffic, had excellent shore resistance and abrasion resistance, and had shape stability that did not deform even when exposed to rainwater. Expensive phosphorescent Jil family! The acid used was the same as in Example 1 and was economical.

Actual h1; 1 Example 3 Instead of the acrylic syrup in Example 2, unsaturated crude j
Polyester resin liquid, mef- instead of benzoyl peroxide
Except for using ethyl ketone peroxide, 4>j< was the same as in Example 2, and 1.・1. 'c
was 2 nm, its shape was arrow-shaped (→), and the part was a valve.

1, 1, 2, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 5, 4, 5, 4, 5, 4, 5, 1, 5, 1, 2, 1, 2, 1, 2, 3, 4, 5, 4, 2, 4, 2, 3, 4, 4, 4, 4, 4, 2, 3, , , , , , , , , 4, 1, 2, 1, 2, 1, 2, 3, 4, 5, 1, 1, , 1, , , , , , , , , , , , , respectively.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the tile of the present invention, and FIG. 2 is a diagram of the tile glue 1 of the present invention, which also functions as a Y1 person tile. Figure 1 Figure 2

Claims (1)

[Claims] 1) Inorganic Filler 1 A luminescent tile consisting of three components: a synthetic resin and a luminescent pigment, and in which the inorganic filler accounts for about 50 weight or more of the total amount of the tile.