JPH1061258A - Surface-protective grave stone and surface protection method of grave stone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To retain the beautiful surface of a grave stone which are not stained with ease and which are not chemically eroded, for a long time, by covering the whole surface with a protective skin having siloxane bonds. SOLUTION: The surface of a lower base stone 1, an incense burner 2, a middle base stone 3, a water bowl 4, an upper base stone 5, and a tombstone 6 constituting grave stones, is sufficiently washed and dried. Subsequently, a surface-protective agent chiefly made of a siloxane condensation product is applied by a spray gun or the like on the whole face including the bottom face of the constituting members 1-6 to form a surface protection skin film after curing at the normal temperature. Since the protection skin film coating the surface of grave stones contains siloxane bonds in the molecular structure, it is chemically inert and hence, excellent in anticorrosiveness, water-repellent effect, and water-imperviousness. As a result, it prevents oxidizing chemical substances in rainwater from eroding the surface of the grave stones. Even if they are stained, the stains can be easily removed by washing. Accordingly, the surface of the grave stones can be beautifully retained for a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface protection gravestone and a method for protecting the surface of a gravestone.

[0002]

2. Description of the Related Art Generally, tombstones are soiled by external factors and internal factors. Dirt due to external factors is caused by splashing from the ground due to dust or rain, rain marks including dirt traveling on the surface, attachment of dirt components due to fallen leaves, etc., or chemical erosion of the surface by acidic chemical substances in rainwater.
In particular, small holes and irregularities are present on the surface of the tombstone, and when dirt such as dust adheres to the surface, falling water such as rainwater diffuses the dirt attached to the surface of the tombstone, and the dirty water becomes a surface. Drops while adhering to the surface, causing dirt. Further, when rainwater transmitted on the surface contains dirt components such as acidic chemical substances, jumping from the ground, and falling leaves, the dirt accumulates in minute holes and irregularities on the surface of the tombstone.

[0003] Dirt due to internal factors is caused by iron contained in the tombstone itself being oxidized by acidic moisture permeating from the outside and floating on the surface in a stain-like manner. Since such dirt cannot be removed by simple cleaning, the appearance of the tombstone is significantly impaired.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a surface protection gravestone which can maintain a beautiful surface state to which dirt hardly adheres and which is hardly chemically eroded for a long period of time. Is what you do.

Further, the present invention is capable of maintaining a beautiful surface state to which dirt hardly adheres and which is hardly chemically eroded over a long period of time, and furthermore, allows engraved characters to have a natural texture. An object of the present invention is to provide a method for protecting the surface of a tombstone that can be protected from the outside world.

[0006]

The surface protective tombstone according to the present invention is characterized in that the entire surface of the tombstone is coated with a protective film having a siloxane bond. The method for protecting the surface of a tombstone according to the present invention comprises the steps of embedding a carved character portion of the tombstone with a clay filler, applying a surface protective agent mainly composed of a siloxane condensate, and curing to form a cured film. And removing the padding, applying a character protecting agent containing alkoxysilane or a hydrolyzate thereof and colloidal silica to the exposed engraved character portion, and curing and forming a matte film. It is characterized by the following.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a gravestone. The lower pedestal 1 is installed on a carote (not shown) in which the urn is stored. The incense burner 2 is arranged in front of the lower pedestal 1. The middle pedestal 3 is placed on the lower pedestal 1, and the water bowl 4 is placed on the lower pedestal 1 so that the water basin 4 is located in front of the middle pedestal 3.
Is placed on top. The upper pedestal 5 is placed on the middle pedestal 3, and the rod 6 is placed on the upper pedestal 5. It should be noted that engraved characters (not shown) such as a house name are attached to the front surface of the rod 6.

A protective film having a siloxane bond is coated on the entire surface including the lower base stone 1, the incense burner 2, the middle base stone 3, the water basin 4, the upper base stone 5, and the base stone 6 for constructing such a tombstone. ing.

As the tombstone, for example, marble, sandstone, etc. are used in addition to white granite, black granite, komatsu stone, and basalt. Next, a method of applying a surface protective film on the surface protective gravestone of the present invention will be described.

First, the surface of the gravestone building member is sufficiently washed and dried. Subsequently, a surface protective agent containing a siloxane condensate as a main component is applied to the entire surface including the bottom surface of the building member using, for example, a spray gun, and cured at room temperature to form a surface protective film.

Examples of the surface protective agent containing the siloxane condensate as a main component include (1) monomethylsilane, monoethylsilane and monophenyldichlorosilane, and a small amount of dimethylsilane, diethylsilane and diphenyldichlorosilane, and water is added. In addition, 3 obtained by hydrolysis
Silicone varnish solution obtained by dissolving a functional condensate (RSiO _1.5 ) and a bifunctional condensate (R ₂ SiO) with a solvent such as xylene and curing of sodium acetate, zinc octylate, tetrabutyl titanate, aluminum acetylacetonate, etc. (2) A modified silicone varnish obtained by adding an organic resin such as an alkyd resin, an epoxy resin, an acrylic resin, or a urethane resin to the condensate and modifying the resultant, and dissolving the resultant with a solvent such as xylene. A composition containing a system solution and the above-mentioned curing accelerator is used. In particular, a surface protective film formed by applying and curing a surface protective agent containing a modified silicone varnish-based solution is useful because it can adhere more firmly to the surface of the tombstone. In addition,
The curing accelerator is added to the silicone varnish-based solution or the modified silicone varnish-based solution immediately before being applied to the tombstone building member.

In the application of the surface protective film, when the surface protective agent is applied using a spray gun, it is preferable that the surface protective agent is brush-coated on the engraved characters prior to the application.

In the surface protective tombstone according to the present invention described above, since the protective film coated on the surface of the tombstone has a siloxane bond (Si-O-Si) having a molecular structure similar to that of glass or quartz, it is chemically insensitive. It exhibits excellent corrosion resistance, excellent water repellency and water permeability to acids having an activity of about pH 2. As a result, the surface of the tombstone covered with the protective film can be prevented from being eroded by an acidic chemical substance in rainwater. In addition, since the protective film has high water repellency, even if a dirt component such as a splash from the ground due to dust or rain, dirt traveling on the surface, or a dirt component such as fallen leaves adheres, the dirt can be easily removed by washing with water or the like. Can be removed. Further, since the protective film has excellent acid resistance and water resistance, even if the tombstone itself contains iron or the like, it is possible to prevent acidic moisture from penetrating from the surface into the inside of the tombstone. It is possible to prevent generation of stains due to oxidation. Further, the protective film exhibits excellent weather resistance.

Therefore, it is possible to provide a surface protection tombstone capable of preventing contamination due to external and internal factors and keeping the surface of the tombstone beautiful for a long period of time. In addition, by covering the tombstone with the surface protective film having the above-mentioned excellent properties, it is possible to use marble and sandstone which have been unsuitable as a tombstone in terms of corrosion resistance and the like.

Next, a method for protecting the surface of a tombstone according to the present invention will be described. (First step) First, after engraving the sculpture character portion of the tombstone (such as a barstone) with a clay-based filling, the above-mentioned siloxane condensate is used as a main component on the entire surface including the bottom surface of the tombstone building member including the barstone. Is applied by using, for example, a spray gun and cured to form a cured film (surface protective film).

As the tombstone, for example, marble, sandstone, etc. are used in addition to white granite, black granite, komatsu stone, and basalt. In particular, it is preferable to target a tombstone made of a dark stone (for example, black granite) that makes engraved characters difficult to read when gloss is applied.

As the clay-based filling, oil clay having good releasability is preferable. (Second step) Next, after removing the padding of the engraved character portion, a character protecting agent containing alkoxysilane or a hydrolyzate thereof and colloidal silica is applied to the engraved character portion by brushing or the like and cured. Forms a matte film.

Examples of the character protectant include (a) a compound represented by the general formula R ¹ Si (OR ² ) ₃ (wherein R ¹ represents an alkyl group such as a methyl group, an ethyl group, or an n-propyl group;
Chloropropyl group, vinyl group, 3,3,3-trichloropropyl group, γ-glycidoxypropyl group, γ-methacryloxypropyl group, γ-mercaptopropyl group, phenyl group, 3,4-epoxycyclohexylethyl group,
γ-aminopropyl group, R ² is methyl group, ethyl group, n
-Propyl group, i-propyl group, n-butyl group, sec
- butyl, t- butyl group, an organoalkoxysilane or a hydrolyzate thereof represented by an acyl group such as acetyl group) or the general formula Si (OR ³⁾ ₄ (provided that,, R ³ in the formula (Indicating an alkyl group such as a methyl group, an ethyl group or an n-propyl group)) or a hydrolyzate thereof and (b) colloidal silica in a solvent such as isopropyl alcohol. It has a composition in which a curing accelerator such as zirconium tetraalkoxide or trialkoxide boron is added to the solution. The curing accelerator is added to the solution containing the components (a) and (b) immediately before being applied to the engraved character portion of the construction member of the tombstone.

According to the method for protecting the surface of a tombstone according to the present invention described above, the sculpture character portion of the tombstone is filled in advance with a clay filler, and a surface protective agent containing a siloxane condensate as a main component is applied and cured. As a result, the siloxane bond (Si—O—S) having a molecular structure similar to that of glass or quartz described above is obtained.
It is possible to firmly form a cured film (surface protective film) having excellent corrosion resistance, excellent water repellency and water permeability to a chemically inert acid having a pH of about 2 having i). As a result, the surface of the tombstone can be maintained in a beautiful state for a long period of time by preventing dirt due to external and internal factors.

Further, after the formation of the cured film, the clay filler embedded in the engraved character portion is peeled off and removed to expose the engraved character portion. At this time, since the cured film (surface protective film) is firmly attached to the tombstone construction member, only the padding can be removed without peeling off the protective film around the padding. In particular, the padding made of oil clay can be easily peeled and removed from the engraved character portion. A matte film can be formed by applying a character protecting agent containing alkoxysilane or a hydrolyzate thereof and colloidal silica to the exposed engraved character portion and curing the engraved character portion. The formed matte film can protect the engraved character portion from the outside and, because of its poor gloss, does not reflect the engraved character, so that the character can be read clearly.

Therefore, it is possible to maintain a beautiful surface state, which is hardly stained and hardly eroded chemically, for a long period of time. Furthermore, it is possible to sculpture even a dark stone tombstone such as black granite. It is possible to provide a tombstone surface protection method capable of protecting the character portion from the outside while maintaining a natural texture that is easy to read.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail. (Example 1) First, a small amount of dimethylsilane, diethylsilane, and diphenyldichlorosilane was added to monomethylsilane, monoethylsilane, and monophenyldichlorosilane, and water was added thereto to obtain trifunctional and bifunctional trifunctional compounds. The condensate was dissolved in xylene, and an acrylic resin was added to this solution to prepare a modified silicone varnish-based solution without a curing accelerator.

Next, of the tombstone composed of the white granite shown in FIG. 1 described above and shown in FIG.
Only the whole was taken out, and the whole surface including the bottom was washed and dried. Subsequently, 5 wt% of tetrabutyl titanate as a curing accelerator was added to the modified silicone varnish-based solution not containing the curing accelerator to prepare a surface protective agent. The surface was coated with a brush and cured to form a surface protective film on the engraved character. Subsequently, the above-mentioned surface protective agent was applied to the entire surface including the bottom surface of the rod 6 using a spray gun and cured to form a surface protective film.

The rod stone 6 made of white granite coated with the surface protective film of Example 1 and the rod stone made of white granite without surface protection (Comparative Example 1) were each taken for 8 months. After extensive exposure to the outside world, the surface condition of the stones was observed. As a result, the rod stone 6 of Example 1 retains the original color tone of the white granite, whereas the stone stone of Comparative Example 1 has the fine color tone of the white granite due to the penetration of rainwater containing acid and dust and surface adhesion. Was lost, leaving a rough patchy pattern.

In the white granite used for the sword, even if the sculpture portion is coated with a surface protective film to impart gloss, the sculpture characters are not difficult to read due to the material and color. Example 2 First, tetraethylalkoxysilane and colloidal silica were dissolved and dispersed in isopropyl alcohol to prepare an alkoxysilane-based solution without a curing accelerator.

Next, of the tombstone composed of the black granite shown in FIG. 1 described above and shown in FIG.
Only the whole was taken out, and the whole surface including the bottom was washed and dried. Subsequently, the engraved character portion of the rod 6 was embedded with oil clay. Subsequently, 5% by weight of tetrabutyl titanate as a curing accelerator was added to a modified silicone varnish-based solution containing no curing accelerator as in Example 1 described above to prepare a surface protective agent, and this surface protective agent was sprayed. The surface protection film was formed by applying and curing the entire surface including the bottom surface and the engraved character portion of the rod 6 using a gun.

Next, after the surface protective film was sufficiently cured, the oil clay in the engraved character portion of the rod 6 was removed with a cutter or the like. Subsequently, 3% by weight of zirconium tetraethyl alkoxide is added to the alkoxysilane-based solution to which the curing accelerator has not been added to prepare a character protecting agent, and the character protecting agent is applied to the exposed engraved character portion with a brush and cured. As a result, a matte film was formed on the engraved characters.

The stone 6 made of black granite coated with the surface protective film and the matte film of Example 2 as described above and the stone made of black granite without surface protection (Comparative Example 2) were used, respectively. After being exposed to the outside world for eight months,
The surface condition of the stones was observed. As a result, Example 2
While the stone of the black stone retains the glossiness peculiar to black granite,
The slab of Comparative Example 2 lost its glossiness and turned white.

Furthermore, since the sculptured character portion of the house name and the like is protected by a matte coating, the sculptured character portion of the black granite of Example 2 has a natural texture that is easy to read without reflection. Had.

Example 3 First, the lower pedestal 1, incense burner 2, middle pedestal 3, water basin 4, upper pedestal 5, and pedestal 6 shown in FIG. After washing the entire surface including the bottom surface of the tombstone construction member), it was dried. Subsequently, 5% by weight of tetrabutyl titanate as a curing accelerator was added to a modified silicone varnish-based solution containing no curing accelerator as in Example 1 described above to prepare a surface protective agent. The engraved character portion of the tombstone construction member was applied by brush coating and cured to form a surface protective film on the engraved character portion. Subsequently, the above-described surface protective agent was applied to the entire surface including the bottom surface of the tombstone building member using a spray gun, and was cured to form a surface protective film. The tombstone building member on which such a surface protection film was formed was assembled as shown in FIG.

After exposing the tombstone made of Komatsu stone coated with the surface protective film of Example 3 to the outside for one year, the surface condition of the tombstone was observed. As a result, it was confirmed that the gravestone of Example 3 retained the original green color of Komatsu stone.

In the Komatsu stone used for the tombstone construction member, even if the engraved portion is coated with a surface protective film to impart gloss, the engraved characters were not difficult to read due to the material and color.

(Example 4) First, the lower pedestal 1, incense burner 2, middle pedestal 3, water basin 4, upper pedestal 5, and rod 6 shown in FIG. After washing the entire surface including the bottom surface of the tombstone construction member), it was dried. Subsequently, the engraved character portion of the tombstone construction member was embedded with oil clay. Subsequently, 5% by weight of tetrabutyl titanate as a curing accelerator was added to a modified silicone varnish-based solution containing no curing accelerator as in Example 1 described above to prepare a surface protective agent, and this surface protective agent was sprayed. Using a gun, the composition was applied to the entire surface including the bottom surface and the engraved character portion of the gravestone building member, and was cured to form a surface protective film.

Next, after the surface protective film was sufficiently cured, the oil clay in the engraved character portion of the tombstone building member was removed by a cutter or the like. Subsequently, 3% by weight of zirconium tetraethylalkoxide was added to an alkoxysilane-based solution containing no curing accelerator as in Example 2 described above to prepare a character protecting agent, and the character protecting agent was applied to the exposed engraved characters. A matte film was formed on the engraved letters by applying with a brush and curing. A tombstone construction member on which such a surface protection film and a matte film were formed was assembled as shown in FIG. 1 described above to construct a surface protection tombstone.

After exposing the black granite tombstone coated with the surface protective film and the matte film of Example 4 to the outside for one year, the surface condition of the tombstone was observed. As a result, it was confirmed that the gravestone of Example 4 maintained the glossiness peculiar to black granite.

Example 5 First, the entire surface including the bottom surfaces of the two marble plates was washed and dried. Subsequently, 5% by weight of tetrabutyl titanate as a curing accelerator was added to a modified silicone varnish-based solution containing no curing accelerator as in Example 1 described above to prepare a surface protective agent. A surface protective film was formed by applying the solution using a spray gun and curing the entire surface including the bottom surface of the marble plate.

Of the two marble plates coated with the surface protective film of Example 5 described above, one of the marble plates was subjected to 9.8 accelerated weatherability according to JIS K5400 (1990) paint general test method. 9.8.1 An accelerated weathering test was conducted for 200 hours using a sunshine arc lamp system, and the appearance was visually compared with a marble plate coated with the remaining surface protective film that had not been tested. As a result, between the marble board after the accelerated weathering test and the untested marble board city,
No difference was observed.

[0038]

As described above in detail, according to the present invention, contamination by external factors such as rainwater and fallen leaves, and internal factors such as oxidation of iron contained in the tombstone itself is prevented, and the present invention is applied for a long period of time. A surface protection gravestone capable of maintaining the gravestone surface in a beautiful state can be provided.

Further, according to the present invention, dirt hardly adheres,
It is possible to maintain a beautiful surface condition that is hardly eroded chemically and for a long period of time, and also maintains a natural texture that makes it easy to read engraved letters even on dark stone tombstones such as black granite It is possible to provide a method for protecting the surface of the tombstone, which can protect the tombstone from the outside world.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a gravestone according to the present invention.

[Explanation of symbols]

 1 ... lower pedestal, 2 ... incense burner, 4 ... water bowl, 6 ... rod.

Continued on the front page (72) Inventor Satomi Ishibashi 419-9, Horido, Oaza, Sakado-shi, Saitama (72) Inventor Michihiko Hattori 3-18-3 Nomidai, Kanazawa-ku, Yokohama, Kanagawa

Claims (2)

[Claims] 1. A surface-protecting gravestone comprising a gravestone having an entire surface coated with a protective film having a siloxane bond. 2. A step of embedding a sculpture character portion of the tombstone with a clay filler, applying a surface protective agent mainly composed of a siloxane condensate, and curing to form a cured film; and removing the filler. Applying a character protecting agent containing alkoxysilane or a hydrolyzate thereof and colloidal silica to the exposed engraved character portion, and curing and forming a matte film. Surface protection method.