JP2001275866A - Method for preventing adhesion of dirty to washstand facility dirt-proof washstand equipment, and coating composition for dirt-proof washstand facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washstand facility hardly causing the adhesion of dirt to the periphery of a drain fitting fixed part in a washstand facility provided with a waster discharge facility, a wash basin and a drain fitting. SOLUTION: This washstand facility is provided with a water discharge facility, a wash basin and a drain fitting, and also provided with a means for quickly cutting or draining the water supplied near a clearance between a drain fitting fixed part, in which the drain fitting is fixed to the wash basin, and the drain fitting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an antifouling method for washroom facilities, an antifouling washroom facility, and a coating composition for an antifouling washroom facility.

[0002]

2. Description of the Related Art In recent years, there has been an increasing demand for cleanliness in sanitary spaces, and it is widely desired to keep sanitary facilities clean in a sanitary manner. As a method of keeping sanitary sanitary cleanliness in general households for a long time, detergents such as surfactants and cleansers are applied to scourers and brushes to rub the soiled parts, and chemical stain removal with detergents and scourers. A method in which physical removal by brushing is used in combination has been adopted.

[0003]

Heretofore, as one of the forms of dirt on washroom facilities, there is a microbial dirt formed around a fixing portion of a drainage fitting. The microbial stains could not be sufficiently removed by a method in which the detergent such as the above-mentioned surfactant, weak acid and weak alkali was attached to a scourer or a brush and the ceramic surface was strongly rubbed. In view of the above, an object of the present invention is to provide a washroom which is less likely to be formed around the fixing portion of the drainage fitting. Another object of the present invention is to provide a coating composition for toilet facilities that makes it difficult for stains formed around the fixing portion of the drainage fitting to occur in the toilet facilities. It is still another object of the present invention to provide a method of using the coating composition to make the dirt less likely to occur around a fixing portion of a drainage fitting of a washroom.

[0004]

Observation of the area around the fixed part of the drainage fitting of the washroom equipment revealed that water easily stayed for a long time, and that microbial dirt derived from bacteria and mold was formed. . From the above observations, it is estimated that microbial dirt formed around the fixed part of the drainage fitting is mentioned as dirt on the washroom equipment used for a long time, and the mechanism of the generation is as follows. (1) Water scattered due to hand washing, water dripping down a water spout, water adhered by dew condensation, and the like are supplied to the vicinity of the fixing portion of the drainage fitting. Since a slight gap is formed between the drainage fixture of the basin and the drainage fixture in the washbasin, water enters the gap by capillary action. The water in the gap has a small area in contact with the atmosphere and is difficult to dry,
Water tends to stay around the fixing portion of the drainage fitting, and a wet environment is maintained for a long time. (2) Microorganisms propagate in the stagnant water using nutrients supplied from the atmosphere, including organic substances such as sebum and detergents, as nutrient sources. The microorganisms themselves and their metabolites accumulate to form dirt. This dirt may be formed to the inside of the gap, and cannot be easily removed even by rubbing with a scrub, a brush, or the like. Therefore, in order to prevent contamination around the fixing part of the drainage fitting, water supplied around the fixing part of the drainage fitting is stopped so as not to enter the gap formed in the fixing part of the drainage fitting, It is considered a good method to drain the water quickly without stagnation.

According to the present invention, there is provided a stain-proofing method for a washroom equipped with water-discharge equipment, a washbasin, and a drainage fitting based on the above observation and consideration of the mechanism thereof, wherein the drainage fitting is installed in the washbasin. By providing a water stoppage or drainable means for preventing water from being supplied to the gap between the drainage fixture portion provided in the and the drainage fixture, it is possible to prevent water from staying in the gap for a long time. An antifouling method for a washbasin, and a washbasin equipped with water discharge equipment and a water receiver, wherein a drainage fitting portion and a drainage fixture provided for installing a drainage fixture in the washbasin are provided. The present invention proposes an antifouling washbasin provided with means for stopping or draining water so as not to supply water to the gaps.

In a preferred embodiment of the present invention, a water-repellent coating and / or water-sliding property is provided around the upper surface of the drainage fitting, around the drainage fitting part of the basin surface, and in the gap between the drainage fitting and the drainage fitting part of the basin. Water-repellent to the antifouling method of washing facilities characterized by forming a coating, and around the top surface of the drainage fitting, around the drainage fitting part on the washbasin surface, and the gap between the drainage fitting and the drainage fitting part of the washbasin. Provided is an antifouling washbasin provided with a coating and / or a water-sliding coating. The portion where the water-repellent and water-slidable film is formed exhibits an effect of stopping water supplied from the portion where the water-repellent and water-slidable film is not formed at the boundary portion due to a difference in surface energy. In addition, if the portion having the water repellent and water-slidable coatings has an inclination with respect to the horizontal plane, water flows down without stagnating. Accordingly, in a washroom equipped with water-discharge equipment and a washbasin, a water-repellent coating and / or a water-repellent film is formed around the top surface of the drainage fitting, around the drainage fixture fixing portion on the surface of the washbasin, and between the drainage fitting and the drainage fixture fixing portion of the washbasin. Alternatively, by forming the water-slidable coating, water does not enter into the gap formed in the fixing portion of the drainage fitting, and the water does not easily stay. Also,
Water retention is also prevented by forming a water-repellent film and / or a water-slidable film in the gap.
Therefore, the dirt hardly occurs around the fixing portion of the drainage fitting.

Further, in the present invention, a room-temperature-curable silicone, a room-temperature-curable fluororesin, or a mixture of a fluorine-containing resin and a room-temperature-curable silicone, the periphery of the upper surface of the drainage fitting, a basin A water-repellent coating and / or a water-sliding coating for forming a water-repellent coating and / or a water-sliding coating around the drainage fitting portion of the surface and between the drainage fitting and the drainage fitting portion of the wash basin. A step of applying to the periphery of the top surface of the drainage fitting, around the drainage fitting part of the basin surface, and the gap between the drainage fitting and the drainage fitting part of the basin, and a step of curing the coating composition. Provide an antifouling method. By coating the hardening component with a room temperature hardening material, it becomes possible to make the above-mentioned stain less likely to occur even around the fixing part of the drainage fitting of the existing washroom facilities.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the examples of the washing facilities shown in FIGS. FIG. 1 is an external view of the toilet equipment A, and FIG. 2 is a cross-sectional view of the drainage fixing portion of FIG. 1 and 2 includes a water discharge device 1, a wash basin 2, and a drainage fitting 3. The drainage fitting 3 is fixed to a drainage fitting part 4 provided on the wash basin 2. A slight gap 5 is formed between the drainage fitting 3 and the drainage fitting fixing part 4. And
In order not to supply water to the gap 5,
A water-repellent coating or a water-sliding coating is formed on the surface 4a of the basin, the periphery 3a of the upper surface of the drainage fitting 3, and the gap 5 in the vicinity of. The upper surface of the drainage fitting 3 is inclined low toward the center of the drainage outlet. The upper surface of the drainage fitting 3 is inclined with respect to the horizontal plane, and a groove that is inclined so as to become lower toward the center of the drainage hole is formed at the lowest part.
Since the water-repellent film or the water-slidable film is formed on the drain port fixing portion, water hardly stays in this portion, so that the propagation of bacteria is suppressed.

The basin of the present invention is a facility provided with a water discharge device, a basin and a drainage fitting, and includes a vanity, a basin, a hand basin and the like.

In the present invention, the vicinity of the upper surface of the drainage fitting means
It refers to the upper surface and the upper and lower end surfaces and the back surface of the drainage fitting, and may include packing sandwiched between the drainage fitting and the wash basin. The vicinity of the drainage fitting portion on the basin surface is a surface around a hole for fixing the drainage fitting opened in the basin, and is preferably a portion within 5 cm from the outer periphery of the fixing hole.

The water-repellent film in the present invention means a film having a contact angle with water of at least 90 degrees by a contact angle measuring device. It is preferably at least 110 degrees, more preferably 1 degree.
It is 40 degrees or more.

The water-sliding film in the present invention includes, for example,
Grafting a fluoropolymer and a silicone resin, and
A nano-layer separation structure formed by bonding hydrophilic groups
Membrane, composed of hydroxyl-containing siloxane polymer and crosslinking agent
The surface of the film formed by the sol-gel method
H_Three―Group and CF_Three-Configuration modified with a silane derivative having a group
50mm^ThreeConverted to the falling angle of the water droplet
10 degrees or less, preferably 5 degrees or less, more preferably
Refers to a coating of 1 degree or less. More preferably 20mm ^ThreeWater drops
20 degrees or less, preferably 10 degrees or less
Below, more preferably, a coating of 5 degrees or less.

The silicone-containing coating in the present invention is:
Silicone having one or more organic groups bonded to silicon atoms in the silicone, that is, an average composition formula RpSIX
qO (4-p-q) / 2 (wherein, R represents 1 to 18 carbon atoms)
X is an alkoxy group having 1 to 4 carbon atoms, and p and q are 0 <p <2, 0 <q <4, 0 <p + q
<This is a number that satisfies <4)).

In the coating composition for washroom equipment according to the present invention, the room-temperature-curable silicone is a silicone in which one or more organic groups are bonded to a silicon atom in the silicone, that is, an average composition formula RpSiXqO.
(4-pq) / 2 (wherein, R is a monovalent organic group having 1 to 18 carbon atoms, X is an alkoxy group having 1 to 4 carbon atoms,
p and q are 0 <p <2, 0 <q <4, 0 <p + q <4
Which is a number that satisfies the formula (1) that can be cured at room temperature to form a film.

The silicone is a bifunctional silane derivative monomer (a monomer having two hydrolyzable groups per molecule and forming a bifunctional siloxane bond in which two oxygen atoms are bonded to each silicon atom) and / or 3 A functional silane derivative monomer (a monomer having three hydrolyzable groups per molecule and forming a trifunctional siloxane bond having three oxygen atoms bonded to each silicon atom) as an essential component,
Functional silane derivative monomer (having 4 hydrolyzable groups per molecule and 4 oxygen atoms bonded to each silicon atom)
A composition containing a monomer that forms a functional siloxane bond) is obtained by hydrolysis and polycondensation.

Here, as the bifunctional silane derivative, dimethyldimethoxysilane, dimethyldiethoxysilane,
Diphenyldimethoxysilane, diphenyldiethoxysilane, phenylmethyldimethoxysilane, phenylmethyldiethoxysilane, γ-glycidoxypropylmethyldimethoxysilane, γ-glycidoxypropylmethyldiethoxysilane, γ- (meth) acryloxypropylmethyl Dimethoxysilane, γ- (meth) acryloxypropylmethyldiethoxysilane, γ-aminopropylmethyldimethoxysilane, γ-aminopropylmethyldiethoxysilane, heptadecafluorooctylmethyldimethoxysilane, heptadecafluorooctylmethyldiethoxysilane, Trifluoropropylmethyldichlorosilane and the like can be suitably used.

Examples of the trifunctional silane derivative include methyltrimethoxysilane, methyltriethoxysilane, methyltriisopropoxysilane, methyltributoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, ethyltriisopropoxysilane, and ethyltritoxysilane.
Butoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltriisopropoxysilane, vinyltributoxysilane, n-propyltrimethoxysilane, n-propyltriethoxysilane, n
-Propyltriisopropoxysilane, n-propyltributoxysilane, n-hexyltrimethoxysilane, n-hexyltriethoxysilane, n-hexyltriisopropoxysilane, n-hexyltritbutoxysilane, n-decyltrimethoxysilane, n -Decyltriethoxysilane, n-decyltriisopropoxysilane, n-decyltributoxysilane, n-octadecyltrimethoxysilane, n-octadecyltriethoxysilane, n-octadecyltriisopropoxysilane, n-octadecyltributoxysilane, phenyl Trimethoxysilane, phenyltriethoxysilane,
Phenyltriisopropoxysilane, phenyltributoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, γ-glycidoxypropyltriisopropoxysilane, γ-glycidoxypropyltrit Butoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltriethoxysilane, β- (3,4-epoxycyclohexyl) ethyltriisopropoxysilane, β- (3,4-epoxycyclohexyl) ethyl tributoxysilane, γ- (meth) acryloxypropyltrimethoxysilane, γ- (meth) acryloxypropyltriethoxysilane, γ- (meth) acryloxypropyltriisopropoxy Orchid, γ- (meth) acryloxypropyl tributoxysilane, γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ-aminopropyltriisopropoxysilane, γ-aminopropyltributoxysilane, γ-mercapto Propyltrimethoxysilane, γ-mercaptopropyltriethoxysilane, γ-mercaptopropyltriisopropoxysilane, γ-mercaptopropyltributoxysilane, trifluoropropyltrimethoxysilane, trifluoropropyltriethoxysilane, trifluoropropyltriisopropoxy Silane, trifluoropropyltributoxysilane, heptadecafluorooctyltrimethoxysilane,
Heptadecafluorooctyltriethoxysilane, heptadecafluorooctyltriisopropoxysilane, heptadecafluorooctyltributoxysilane, and the like can be suitably used.

As the tetrafunctional silane derivative, tetramethoxysilane, tetraethoxysilane, tetraisopropoxysilane, tetrabutoxysilane, dimethoxydiethoxysilane and the like can be suitably used.

Among the above silicones, γ-glycidoxypropyl group, β- (3,4-epoxycyclohexyl)
Those having a group, a γ- (meth) acryloxy group or the like can form an organic cross-link other than the siloxane cross-link, and are preferable in obtaining room-temperature curability.

Further, a curing agent may be added to enhance the room temperature curability. Examples of the curing agent include lithium hydroxide, sodium hydroxide, potassium hydroxide, sodium methylate, sodium acetate, sodium formate, potassium acetate, potassium formate, potassium propionate, tetramethylammonium chloride, tetramethylammonium hydroxide and the like. Basic compounds; n-hexylamine, tributylamine, diazabicycloundecene, ethylenediamine, hexanediamine, diethylenetriamine, triethylenetetramine, tetraethylenebentamine, ethanolamines, γ-aminopropyltrimethoxysilane, γ- Aminopropylmethyldimethoxysilane, γ- (2-aminomethyl) -aminopropyltrimethoxysilane, γ- (2-aminomethyl) -aminopropylmethyldimethoxysilane, etc. Titanium compounds such as tetraisopropyl titanate and tetrabutyl titanate; aluminum compounds such as aluminum triisobutoxide, aluminum triisopropoxide, aluminum acetylacetonate, aluminum perchlorate, and aluminum chloride; tin acetylacetonate, dibutyltin Tin compounds such as octylate; metal-containing compounds such as cobalt octylate, cobalt acetylacetonate and iron acetylacetonate; and acidic compounds such as phosphoric acid, nitric acid, phthalic acid, p-toluenesulfonic acid, and trichloroacetic acid are preferable. Available to

Further, metal oxide fine particles may be added to improve the hardness and abrasion resistance of the cured film, or to improve the gloss by increasing the refractive index. As the metal oxide, silica, alumina, cerium oxide, tin oxide, zirconium oxide, hafnium oxide, antimony oxide, iron oxide, titanium oxide, rare earth oxide, and the like can be used.

In a coating composition for washrooms containing a room-temperature-curable silicone, it is desirable that the coating composition is dispersed in a non-aqueous solvent in order to improve the storage stability of the coating composition. As the non-aqueous solvent, alcohol, ketone, ester, toluene, xylene, hexane and the like can be suitably used.

An example of a method for manufacturing a washroom according to claim 16 of the present invention can be manufactured by the following procedure. (1) Prepare a washbasin obtained by applying a glaze to a washbasin molding substrate manufactured by casting and baking at a temperature of 1100 ° C. or more, and applying the above-mentioned silicone-containing paint around the fixing portion of the drainage fitting. After application, the silicone is cured. (2) Separately, the silicone-containing paint is applied around the upper surface of the drainage fitting, and then the silicone is cured. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Well-known methods such as spray coating, brush coating, and sponge coating can be used as a method of applying. To cure the silicone, leave it at room temperature,
Known methods such as heating and ultraviolet irradiation can be used.

The fluororesin used in the fluororesin-containing coating in the present invention includes, for example, polyvinyl fluoride, polyvinylidene fluoride, poly (ethylene trichloride), polytetrafluoroethylene, polytetrafluoroethylene-propylene hexafluoride. Copolymers, ethylene-polytetrafluoroethylene copolymers, ethylene-polychlorinated ethylene trifluoride copolymers, ethylene tetrafluoride-perfluoroalkyl vinyl ether copolymers, perfluorocyclopolymers, vinyl ether-fluoroolefin copolymers, vinylester-fluoroolefin copolymers, etc. are preferably used. it can.

The fluorine compound used in the fluorine compound-containing coating of the present invention includes lithium fluoride, magnesium fluoride, calcium fluoride, strontium fluoride, barium fluoride, scandium fluoride, yttrium fluoride, zirconium fluoride, and the like. Hafnium fluoride, manganese fluoride, iron fluoride, cobalt fluoride, nickel fluoride, copper fluoride, aluminum fluoride, gallium fluoride, indium fluoride, bismuth fluoride, lanthanum fluoride, cerium fluoride, fluoride Praseodymium, neodymium fluoride, samarium fluoride, europium fluoride, terbium fluoride, dysprosium fluoride, holmium fluoride, erbium fluoride, thulium fluoride, ytterbium fluoride, lutetium fluoride and the like can be suitably used.

In one embodiment of the toilet equipment according to claim 17 of the present invention, it can be manufactured by the following procedure. (1) A wash basin obtained by applying a glaze to a wash basin molding substrate manufactured by casting and baking at a temperature of 1100 ° C. or higher is prepared, and a paint containing the fluororesin around the fixing portion of the drainage fitting. Is applied, and the fluororesin is cured. (2) Separately, after applying the above-mentioned fluororesin-containing paint around the upper surface of the drainage fitting, the fluororesin is cured. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Well-known methods such as spray coating, brush coating, and sponge coating can be used as a method of applying. Even at room temperature for curing of fluororesin,
Known methods such as heating and ultraviolet irradiation can be used.

In one embodiment of the toilet equipment according to claim 17 of the present invention, it can be manufactured by the following procedure. (1) Prepare a washbasin obtained by applying a glaze to a washbasin molding substrate manufactured by casting and baking at a temperature of 1100 ° C. or more, and a paint containing the fluorine compound around a fixing portion of a drainage fitting. After applying, the fluorine compound is cured. (2) Separately, after applying the paint containing the fluorine compound around the upper surface of the drainage fitting, the fluorine compound is cured. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Well-known methods such as spray coating, brush coating, and sponge coating can be used as a method of applying. Even at room temperature for curing of fluororesin,
Known methods such as heating and ultraviolet irradiation can be used.

In one embodiment of the washing equipment according to claim 18 of the present invention, the vicinity of the upper surface of the drainage fitting, the vicinity of the drainage fitting part on the surface of the basin, and the drainage fitting with the drainage fitting part of the basin are described. A film containing silicone and a fluorine compound is formed in the gap. Here, those exemplified above can be suitably used for the silicone and the fluororesin.
In particular, when the weight of the fluororesin is 40% or more of the total weight of the silicone and the fluororesin, the contact angle with water is 1%.
It is preferable because it exhibits super water repellency of 50 degrees or more. One manufacturing method of the above-mentioned washing facilities is basically according to the following procedure. (1) Prepare a washbasin obtained by applying a glaze to a washbasin mold base made by casting and baking at a temperature of 1100 ° C or more, and containing the above silicone and fluororesin around the fixed part of the drainage fitting. After applying the paint to be cured, the silicone and the fluororesin are cured. (2) Separately, after applying the above-mentioned paint containing silicone and fluororesin around the upper surface of the drainage fitting, the silicone and fluororesin are cured. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Well-known methods such as spray coating, brush coating, and sponge coating can be used as a method of applying. For curing silicone, leave it at room temperature,
Known methods such as heating and ultraviolet irradiation can be used.

[0029] In one embodiment of the washbasin according to claim 19 of the present invention, the periphery of the upper surface of the drainage fitting, the vicinity of the drainage fixture fixing portion on the surface of the basin, and the drainage fixture and the drainage fixture fixing portion of the basin. A film containing silicone and a fluorine compound is formed in the gap. Here, those exemplified above can be suitably used as the silicone and the fluorine compound. In particular, it is preferable that the weight of the fluorine compound is 40% or more based on the total weight of the silicone and the fluorine compound, since the contact angle with water exhibits a super water repellency of 150 degrees or more.
One manufacturing method of the above-mentioned washing facilities is basically according to the following procedure. (1) Prepare a washbasin obtained by applying a glaze to a washbasin molding base made by casting and baking at a temperature of 1100 ° C or more, and containing the silicone and fluorine compound around the fixing part of the drainage fitting. After applying the paint to be cured, the silicone and the fluorine compound are cured. (2) Separately, after applying the paint containing the silicone and the fluorine compound around the upper surface of the drainage fitting,
Cures silicone and fluorine compounds. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Spray coating,
Known methods such as brush coating and sponge coating can be used.
For curing the silicone, well-known methods such as standing at normal temperature, heating, and irradiation with ultraviolet rays can be used.

In one embodiment of the basin according to claim 20 of the present invention, the periphery of the upper surface of the drainage fitting, the vicinity of the drainage fitting part on the surface of the basin, and the drainage fitting with the drainage fitting part of the basin are described. A film containing ceria and / or yttria is formed in the gap. When a film containing ceria and / or yttria is formed, the film exhibits hydrophilicity immediately after production, but exhibits water repellency when left for a while.
Therefore, if a film is formed around the above-mentioned portion, water hardly stays around that portion, and as a result, dirt is hardly formed around the fixing portion of the water discharge equipment. One manufacturing method of the above-mentioned plumbing equipment is basically based on the following procedure. (1) Prepare a washbasin obtained by applying a glaze to a washbasin molding substrate produced by casting and baking at a temperature of 1100 ° C. or more, and surrounding the above-mentioned cerium and / or yttrium around a fixing portion of a drainage fitting. After the application of the alkoxide-containing paint, firing is performed at a temperature of 300 to 700 degrees. (2) Separately, a paint containing the alkoxide of cerium and / or yttrium is applied around the upper surface of the drainage fitting. When applying to a water discharge equipment with nickel chrome plating, 300 to 50
It is desirable to fire at a temperature of 0 degrees. (3) By attaching the drainage fitting prepared in (2) to the basin prepared in (1). When applying to the area around the top surface of the drainage fitting, around the drainage fitting part on the surface of the washbasin, and between the drainage fitting and the drainage fitting part of the washbasin, mask the parts that you do not want to apply as necessary. Do it. Spray coating,
Known methods such as brush coating and sponge coating can be used.

The water-repellent or water-slidable coating in the washroom of the present invention; or the coating composition for the washroom, which hardly generates stains formed around the fixing portion of the drainage fitting in the washstand, contains an antibacterial agent. You may. Antibacterial agents include silver, copper, antibacterial metals such as zinc and their compounds, fine particles or carriers such as silica gel and zeolite, carriers, quaternary ammonium salts, nitrile derivatives, imidazole derivatives, benzothiazole derivatives, isothiazole derivatives, Thiatithiazole derivatives, triazine derivatives, sulfone derivatives, phenol derivatives, phenol ester derivatives, pyrrole derivatives and the like can be suitably used.
Also, when the antibacterial agent is used in combination with a water-repellent or water-slidable coating, water droplets are unlikely to remain because of the water-repellent or water-slidable properties, and bacteria cannot grow in places without water.
A higher antibacterial effect can be expected.

[0032]

According to the present invention, it is possible to prevent dirt from adhering to the vicinity of a fixing portion of a drainage fitting in a washroom equipped with a water discharge device, a water receiver, and a drainage fitting. In addition, it is possible to provide a washing facility in which dirt does not easily adhere to the vicinity of the fixing portion of the drainage fitting. Furthermore, it becomes possible to provide a coating composition for washroom equipment that makes it difficult to generate stains formed around the fixing portion of the drainage fitting in the washroom equipment. Further, it is possible to provide a method of using the above-mentioned coating composition to make it difficult to generate stains formed around the fixing portion of the drainage fitting in the sink.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing one embodiment of a drainage metal fixture.

[Explanation of symbols]

A: Washing facilities, 1: Water discharge equipment, 2: Wash basin, 3: Drain fitting, 4: Drain fitting fixing part, 4a: Around the drain fitting fixing part on the basin surface, 5: Fixing of drain fitting and drain fitting of wash basin Gap between parts

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C09D 127/12 C09D 127/12 183/00 183/00 C09K 3/00 112 C09K 3/00 112D 112F 3 / 18 102 3/18 102 104 104 (72) Inventor Atsushi Yoshida 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Touchi Kiki Co., Ltd. (72) Inventor Masami Ando Nakajima, Kitakyushu-shi, Fukuoka 2-1-1, Totoki Kiki Co., Ltd. (72) Mitsuyoshi Machida, Inventor 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Tochiki Kiki Co., Ltd. (72) Koichi Hayashi, Kitakyushu, Fukuoka Prefecture No. 2-1-1 Nakajima, Kokurakita-ku Totoki Equipment Co., Ltd. (72) Inventor Shin Hayakawa 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F term in the company (reference) 4H020 BA02 BA12 BA32 BA36 4J038 CD092 CD102 CD112 CD132 CE052 DL031 DL051 DL101 NA05 NA07 PC02

Claims (32)

[Claims] An antifouling method for a washroom provided with water discharge equipment, a washbasin, and a drainage fitting, wherein a stop for preventing water from being supplied to a gap between the drainage fixture portion of the washbasin and the drainage fitting. An antifouling method for washing facilities, wherein water or drainage means is provided to prevent water from staying in the gap for a long time. 2. The means has a slope in which the upper surface of the drainage fitting becomes lower toward the center of the drainage outlet, and has a water-repellent film and / or a coating around the upper surface of the drainage fitting and around the drainage fitting part on the basin surface. The antifouling method for a washroom according to claim 1, wherein a water-slidable coating is applied. 3. The drain metal fitting is characterized in that an upper surface of the metal fitting is inclined with respect to a horizontal plane, and a groove that is inclined so as to become lower toward the center of the drain port is formed at the lowest part. Antifouling method of the washroom equipment described in. 4. The water-repellent coating and the water-sliding coating are silicone-containing coatings.
Antifouling method of the washroom equipment described in. 5. The method according to claim 2, wherein the water-repellent film and the water-slidable film are films containing a fluorine resin and / or a fluorine compound. 6. The method according to claim 2, wherein the water-repellent coating and the water-sliding coating are coatings containing silicone and a fluororesin. 7. The method according to claim 2, wherein the water-repellent coating and the water-sliding coating are coatings containing silicone and a fluorine compound. 8. The method according to claim 2, wherein the water-repellent coating is a ceria- and / or yttria-containing coating. 9. The anti-microbial agent according to claim 2, wherein the water-repellent coating and the water-sliding coating further contain an antimicrobial agent.
9. The antifouling method for a washroom according to any one of items 1 to 8. 10. The water-repellent coating has a contact angle with water of 90 degrees or more.
Antifouling method of the washroom equipment described in. 11. The water-repellent coating and the water-sliding coating are each composed of 5
10. The antifouling method for a washroom according to claim 2, wherein the angle is 10 degrees or less in terms of a falling angle of a water drop of 0 mm ³ . 12. The water-repellent film and the water-slidable film are
10. The antifouling method for washroom equipment according to claim 2, wherein the angle is 20 degrees or less in terms of a falling angle of a water drop of 0 mm ³ . 13. A method for antifouling a washbasin provided with water-discharge equipment, a washbasin and a drainage fitting, wherein a stop for preventing water from being supplied to a gap between the drainage fitting portion of the washbasin and the drainage fitting. An antifouling washbasin having water or drainable means. 14. The means has a slope in which the upper surface of the drainage fitting becomes lower toward the center of the drainage port, and has a water-repellent coating and / or a coating around the upper surface of the drainage fitting and around the drainage fitting part on the basin surface. The antifouling washbasin according to claim 13, wherein a water-slidable coating is applied. 15. The drain metal fitting has an upper surface inclined with respect to a horizontal plane, and a groove that is inclined so as to become lower toward the center of the drain port at a lowest position. 3. The antifouling washbasin according to item 1. 16. The antifouling washbasin according to claim 14, wherein the water-repellent coating and the water-sliding coating are silicone-containing coatings. 17. The antifouling washbasin according to claim 14, wherein the water-repellent film and the water-slidable film are films containing a fluorine resin and / or a fluorine compound. 18. The antifouling washbasin according to claim 14, wherein the water-repellent coating and the water-sliding coating are coatings containing silicone and a fluororesin. 19. The antifouling washbasin according to claim 14, wherein the water-repellent coating and the water-sliding coating are coatings containing silicone and a fluorine compound. 20. The water-repellent film according to claim 14, wherein the water-repellent film is a ceria- and / or yttria-containing film.
16. The antifouling washbasin according to any one of items 15 to 15. 21. The water-repellent coating and the water-sliding coating include:
The antifouling washbasin according to any one of claims 14 to 20, further comprising an antibacterial agent. 22. The antifouling washbasin according to claim 14, wherein the water-repellent coating has a contact angle with water of 90 degrees or more. 23. The water-repellent coating and the water-sliding coating, wherein
22. The antifouling washbasin according to claim 14, wherein the angle is 10 degrees or less in terms of a falling angle of a water drop of 0 mm ³ . 24. The water-repellent coating and the water-sliding coating, wherein
22. The antifouling washbasin according to claim 14, wherein the angle is 20 degrees or less in terms of a falling angle of a water drop of 0 mm ³ . 25. A space around the upper surface of the drainage fitting, around the drainage fitting part on the surface of the basin, and a gap between the drainage fitting and the drainage fitting part of the basin, characterized by containing cold-setting silicone. A coating composition for forming a water-repellent film and / or a water-slidable film on a surface of a water-repellent film. 26. A method according to claim 19, wherein a cold-setting fluororesin is contained, the periphery of the upper surface of the drainage fitting, the vicinity of the drainage fitting part on the surface of the basin, and the drainage fitting and the drainage fitting part of the basin. A coating composition for forming a water-repellent film and / or a water-slidable film in gaps, which makes it possible to produce antifouling washroom equipment. 27. A periphery of an upper surface of a drain fitting characterized by containing a room temperature curable silicone and a fluororesin,
It is possible to produce an antifouling washbasin for forming a water-repellent film and / or a water-slippery film around a drainage fitting portion of a washbasin surface and a gap between the drainage fitting and the drainage fixture portion of the washbasin. Coating composition. 28. The coating composition according to claim 25, further comprising an antimicrobial agent. 29. The antifouling washbasin according to claim 25, wherein the surface of the water-repellent film formed by the coating composition exhibits 90 ° or more in terms of a contact angle with water. A coating composition capable of producing a. 30. The water-repellent film and the water-slidable film formed by the coating composition have a surface of 10 degrees or less in terms of a falling angle of a water droplet of 50 mm ^3. Coating composition capable of producing antifouling washroom equipment. 31. The water-repellent film and the water-slidable film formed by the coating composition have a surface of 20 degrees or less in terms of a falling angle of a water droplet of 20 mm ^3. Coating composition capable of producing antifouling washroom equipment. 32. The drainage fitting of the drainage fixture, the periphery of the drainage fixture, the periphery of the drainage fixture on the surface of the washbasin, and the drainage fixture of the washbasin using the coating composition capable of preparing the washbasin according to claim 25. An antifouling method for washroom facilities, including a step of applying to a gap with a fixed portion and a step of curing the coating composition.