WO2001051426A1 - Produit constitue d'une couche de verre et son procede d'obtention - Google Patents
Produit constitue d'une couche de verre et son procede d'obtention Download PDFInfo
- Publication number
- WO2001051426A1 WO2001051426A1 PCT/JP2000/009370 JP0009370W WO0151426A1 WO 2001051426 A1 WO2001051426 A1 WO 2001051426A1 JP 0009370 W JP0009370 W JP 0009370W WO 0151426 A1 WO0151426 A1 WO 0151426A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass layer
- product
- antibacterial
- layer
- concentration
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
- C03C21/005—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to introduce in the glass such metals or metallic ions as Ag, Cu
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/86—Glazes; Cold glazes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2204/00—Glasses, glazes or enamels with special properties
- C03C2204/02—Antibacterial glass, glaze or enamel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00405—Materials with a gradually increasing or decreasing concentration of ingredients or property from one layer to another
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2092—Resistance against biological degradation
Definitions
- the present invention relates to a product having a glass layer, such as a glass product, a ceramic product, or an enamel product, having an antibacterial action, and a method for determining the product.
- antibacterial metals such as Ag, Cu, and Zn are known to have antibacterial properties.
- the entire semifinished product before imparting the antibacterial action is a glass layer, or the semifinished product is a substrate. Since a glass layer called a glaze layer is provided thereon, it is common practice to disperse an antibacterial agent containing an antibacterial metal in the glass layer at the same time as manufacturing the base or forming the glaze layer.
- the antibacterial agent in the glass layer acts on the bacteria, kills the bacteria, or suppresses the propagation thereof. Disclosure of the invention
- the present invention has been made in view of the above-described conventional circumstances, and has an object to provide a product having a glass layer that can be manufactured at low cost and that can exhibit excellent antibacterial action. .
- the present inventors have conducted intensive research to solve the above-mentioned problems.Firstly, in the above-mentioned general product having a glass layer, an antibacterial agent containing an antibacterial metal was dispersed in the glass layer. As a result, it was discovered that the antimicrobial metal was present in the glass layer in a metal state or a compound state, thereby reducing the activity. On the other hand, they have found that the activity can be enhanced if the antibacterial metal is present in the glass layer in an ionized state. Thus, the present invention has been completed.
- the concentration of the antibacterial metal in the glass layer is the lowest on the surface and gradually increases in the depth direction, as schematically shown in Fig. 9. I found that. It was also confirmed that the product having such a concentration curve cannot exert an excellent antibacterial action against bacteria on the surface of the glass layer unless the concentration of the antibacterial agent dispersed in the glass layer is increased. On the other hand, for products with a glass layer whose surface has the highest antimicrobial metal concentration and whose concentration gradually decreases in the depth direction, even if the concentration of the antimicrobial agent used is not so high, the surface of the glass layer It has also been confirmed that it can exert an excellent antibacterial effect on bacteria.
- the product having a glass layer of the present invention comprises a substrate having a glass layer, and the glass layer has an antibacterial metal ion ion-exchanged from an alkali metal ion or an alkaline earth metal ion in the glass layer. Is present.
- the antibacterial metal has a high activity because it exists as an antibacterial metal ion ion-exchanged from an alkali metal ion or an alkaline earth metal ion in the glass layer. Therefore, an excellent antibacterial action against bacteria on the surface of the glass layer can be exhibited without increasing the amount of the antibacterial metal in the glass layer. For this reason, it is possible to lower the concentration of the antibacterial agent to be used and to avoid mass consumption of the antibacterial agent.
- the antibacterial metal ion forms a high-concentration rich layer on the surface of the glass layer. This is because an antibacterial action against bacteria on the surface of the glass layer is originally desired.
- the product having a glass layer according to the present invention comprises a substrate having a glass layer, the glass layer having a rich layer containing a high concentration of an antibacterial metal on the surface, and the antibacterial metal of the rich layer being formed of a metal.
- the concentration is the highest on the surface side and is characterized by a gradual decrease in the depth direction. Since the product of the present invention has a rich layer containing a high concentration of antibacterial metal on the surface of the glass layer, the antibacterial metal can act on bacteria to kill them or suppress their proliferation. .
- the concentration of the antibacterial metal in the rich layer is highest on the surface side and gradually decreases in the depth direction.
- the test results of the present inventors it is possible to exert an excellent antibacterial action against bacteria on the surface of the glass layer without increasing the concentration of the antibacterial agent to be used so much. Mass consumption can be avoided.
- the test results of the inventors by merely bringing the antibacterial agent into contact with the glass layer of the substrate, the alkali metal ions or earth metal ions in the glass layer are ion-exchanged into antibacterial metal ions, Metal ions are incorporated into the glass layer. Then, the amount of the antibacterial metal ion to be substituted in the glass layer can be determined by adjusting the concentration of the antibacterial agent, the contact temperature, the contact time, and the like. As a result, the antibacterial metal ions are not diffused evenly throughout the glass layer, and the surface side of the glass layer has a rich layer containing a high concentration of ion-exchanged antibacterial metal ions.
- a substrate having a glass layer a glass product, a ceramic product, or a hollow product can be employed. Tiles and sanitary ware can be used as ceramic products.
- the antibacterial agent it is possible to use an antibacterial metal by evaporation, a fine powder of the antibacterial metal, a color containing the antibacterial metal, or a solution in which the antibacterial metal is dissolved by ions. Ag, Cu, Zn, etc. can be adopted as the antibacterial metal.
- it is an organic silver-copper compound or a silver / copper-supported inorganic compound; (1) silver, copper, silver-copper alloy, (2) silver phosphate, silver nitrate, silver chloride, silver sulfide, oxidized silver Silver, silver sulfate, silver citrate, silver lactate, (3) cuprous phosphate, cupric phosphate, organic copper compounds, cuprous chloride, cupric chloride, cuprous sulfide, cuprous oxide Copper, cupric oxide, cupric sulfide, cuprous sulfate, cupric sulfate, copper citrate, copper lactate and the like can be used.
- zinc is an organic zinc compound or a zinc-supporting inorganic compound
- zinc, zinc oxide, zinc chloride, zinc sulfide, zinc sulfate, zinc lactate, and the like can be used.
- These antibacterial metals may be a single substance, an alloy, or a compound.
- contact In order to reduce the contact temperature and shorten the contact time in order to perform the on-exchange, it is preferable to use a colloid II solution having a smaller size of a highly soluble antibacterial metal. More preferably, a solution of silver nitrate, silver sulfate or the like is used.
- the size of the antimicrobial metal in colloids is larger than the atoms, whereas in these solutions the size of the antimicrobial metals is equal to the atoms.
- the solution in which the antibacterial metal is dissolved by the ion can be embodied as a treatment liquid containing the antibacterial metal ion and a solvent.
- the colloid preferably contains a large amount of antibacterial metal particles, and the solution preferably contains a high concentration of antibacterial metal ions.
- the concentration of the antibacterial metal on the surface exceeds twice the concentration of the antibacterial metal inside 10 nm deep from the surface. According to the test results of the inventors, this provides a sufficient antibacterial effect.
- the glass layer also contains an antibacterial metal even inside the back of the rich layer.
- the concentration of the antibacterial metal becomes substantially uniform in the depth direction.
- the antibacterial metal can exert its initial action by ion exchange performed from the surface side of the glass layer, and can exert its effect only by ion exchange performed only from the surface side of the glass layer.
- the durability is improved and the amount of the antibacterial metal consumed is reduced, so that the production cost can be reduced.
- the concentration of the antibacterial metal is the lowest on the surface side, and is directed toward the inner side at the back. It gradually increases and then tends to saturate. For this reason, in this case, if the glass layer contains a large amount of antibacterial metal and the concentration of saturation is not increased to some extent when the wear progresses from the surface to some extent after use, the antibacterial metal only works. Cannot be exhibited effectively. For this reason, in this case, it is difficult to exert the action of the antibacterial metal at an early stage.
- the antibacterial metal is contained in the glass layer in advance, and the antibacterial metal is taken in by ion exchange from the surface side of the glass layer, and a rich layer is formed on the surface side of the glass layer.
- Antimicrobial metals that saturate at about the same concentration as the rich layer can be included.
- the glass layer of the substrate also contains the antibacterial metal in the interior deeper than the rich layer.
- the rich layer exerts an excellent antibacterial metal action before wear from the surface immediately after use, and if the wear progresses from the surface to some extent after use, the internal antibacterial metal still exerts the effect. Excellent antibacterial metal action will be demonstrated. For this reason, the action of the antibacterial metal can be exhibited at an early stage, and both improvement in durability and reduction in manufacturing cost can be achieved.
- the product having the glass layer of the present invention can be manufactured by the following second and third methods in addition to the above-described ion exchange method as the first method. That is, in the second method, an antimicrobial agent is attached to the surface of the glass layer of the base, and then the antibacterial agent is irradiated with a laser beam. According to the test results of the inventors, in the product having the antibacterial function manufactured in this way, a lithium layer of an antibacterial metal is formed on the surface of the glass layer by the action of a single laser beam, and the antibacterial performance is remarkably enhanced.
- a first glaze capable of forming a first glass layer on the surface of the base and a second glaze capable of forming a second glass layer containing an antibacterial metal on the surface of the base are prepared. I do. Then, a first glaze layer made of the first glaze and a second glaze layer made of the second glaze are formed on the surface of the base, and the first glaze layer and the second glaze layer are melted to form the first glaze layer. Forming a glass layer and a second glass layer; According to the test results of the inventors, the product having antibacterial function produced in this way has a rich layer of antibacterial metal on the surface of the glass layer without using much antibacterial agent, and has an antibacterial performance. Is significantly increased.
- a water-repellent layer containing a water-repellent component is formed on the surface side of the glass layer.
- the surface of the glass layer has an antibacterial function and a water-repellent function. Both are provided, and even if water containing a large amount of dirt is used so that the antibacterial effect is insufficient with only the antibacterial function, the water repellent function makes it difficult for dirt to remain, and the antibacterial effect Can be fully exhibited.
- a water-repellent layer having a silicon-containing functional group bonded to a hydroxyl group present on the surface of the glass layer by a dehydration reaction or a dehydrogenation reaction is used as a method of forming a water-repellent layer containing a water-repellent component on the surface side of the glass layer.
- a water-repellent layer having a silicon-containing functional group bonded to a hydroxyl group present on the surface of the glass layer by a dehydration reaction or a dehydrogenation reaction is used.
- Performing treatment with a water treatment liquid can be adopted. If this treatment is performed, the silicon-containing functional group will become a hydroxyl group (one) existing on the surface of the glass layer.
- the water-repellent treatment liquid has this silicon-containing functional group, it is a product that uses water containing a large amount of metal ions such as soluble silica at the same time, and dirt such as human waste does not stick. The cleaning becomes easy.
- the water-repellent treatment liquid a liquid which is not bonded between the silicon-containing functional groups can be used. According to the test results of the inventors, this makes it possible to enhance the antifouling effect on the water-resistant stain, the hair dye stain, the abrasion resistance and the alkali resistance. This is because if the silicon-containing functional groups of the water-repellent treatment solution are bonded to each other, the amount of silicon increases, and the acid having a network structure precipitates in the coating film, so that dirt is likely to be taken into the film.
- a liquid having a terminal fluorocarbon group bonded to a silicon-containing functional group may be employed as the water-repellent treatment liquid.
- the presence of such a fluorocarbon group has a high water-repellent effect due to the small critical surface tension of the fluorocarbon group, and is resistant to water-resistant stains, hair-dyeing liquid stains and the like. This is because the effect on alkalinity is large.
- Fluorocarbon group (the n l ⁇ n ⁇ 1 natural number 2) _ C n F 2n + 1 may be assumed to be.
- this has a large number of fluorines and increases the volume of fluorosilane, so that it has an effect on water-resistant stains, hair stains, abrasion resistance and resistance to abrasion. large.
- the water-repellent treatment liquid a liquid having no terminal alkyl group bonded to the silicon-containing functional group can be used. According to the test results of the inventors, this makes it possible to enhance the effect on water-resistant stains, hair-dyeing stains, and alkali resistance.
- a liquid having a terminal alkyl group bonded to a silicon-containing functional group can also be used as the water-repellent treatment liquid.
- the presence of the alkyl group in this manner causes the antifouling effect to be exhibited as lipstick stain resistance and abrasion resistance due to the large critical surface tension of the alkyl group.
- a methyl group may be employed as the alkyl group.
- a propyl group or a hexyl group can be employed as the alkyl group.
- the alkyl group becomes bulky and excellent in alkali resistance, but inferior in abrasion resistance.
- the alkyl group is a methyl group, it is excellent in terms of abrasion resistance, but inferior in terms of resistance to abrasion.
- the alkyl group is more than the fluoro group. It is preferable to use one. According to the test results of the inventors, this makes the water-repellent treatment liquid not only perfluoroalkylsilane, but also has a high effect on lipstick stain resistance and abrasion resistance.
- the fluorocarbon group is more than the alkyl group. It is also preferable to employ a large number. According to the test results of the inventors, this increases the amount of perfluoroalkylsilane in the water-repellent treatment liquid, and reduces water-resistant stains, hair dye stains, abrasion resistance and alkali resistance. High effect. Is preferably bonded by dimethyl siloxane (0- S i (CH 3) 2) and Kei-containing functional group and an alkyl group.
- this has a high effect on water-resistant stains, hair dye stains, abrasion resistance and alkali resistance.
- This dimethylsiloxane has a linear bond between a silicon-containing functional group and an alkyl group, and a cyclic bond between a silicon-containing functional group and an alkyl group. It is preferable to employ According to the test results of the inventors, this stably exerts high effects on water-resistant stains, lipstick stains, hair dye stains, abrasion resistance and alkali resistance.
- dimethylsiloxane in which a silicon-containing functional group and an alkyl group are bonded in a linear manner include a first agent and a second agent described in JP-A-8-209118.
- the first part is a co-hydrolyzate of a perfluoroalkyl group-containing organic silicon compound and a hydrolyzable group-containing methylpolysiloxane compound in a hydrophilic solvent
- the second part is an organo-organic compound. It is a mixture of a polysiloxane and a strong acid.
- the first agent is C 8 F 17 CH 2 CH 2 S i (O CH 3 ) 3 and S i (CH 30 ) 3 CH 2 CH 2- (S i (CH 3 ) 2 0) 10 -S i (CH 3 ) 2 CH 2 CH 2 S i (0 ⁇ 11 3 ) 3 in co-hydrolysis in a hydrophilic solvent consisting of 0.1 N aqueous hydrochloric acid, t-butanol and hexane is obtained by decomposing the second agent, H 0- (S i (CH 3) 2 0) 30 - there is a mixture of S i (CH 3) 2 0 H and methanesulfonic acid.
- the inventors have completed a method for determining a product according to the present invention. That is, the method for judging a product having a glass layer according to the present invention is a method for judging a product comprising a substrate having a glass layer, wherein the glass layer contains an antibacterial metal.
- the antibacterial metal of the glass layer is ion-exchanged from the alkali metal ion or the alkaline earth metal ion in the glass layer. Judge that it exists. This makes it possible to determine whether the antibacterial metal is contained in the glass layer as antibacterial metal ions. In such a determination, it can also be determined that the antimicrobial metal ion forms a high concentration rich layer on the surface of the glass layer.
- the method for judging a product of the present invention comprises a substrate having a glass layer, and the glass layer is a method for judging a product having a rich layer containing a high concentration of an antibacterial metal on the surface thereof.
- the concentration of the antibacterial metal in the rich layer is highest on the surface side and gradually decreases in the depth direction. I do.
- the concentration distribution of the antimicrobial metal in the lithium layer in the depth direction within a few hundred nm, so that the X-ray light having excellent resolution in the depth direction is required.
- Electron spectroscopy is used. According to this method, it is possible to analyze not only the concentration distribution of the antibacterial metal in the depth method but also the state of the antibacterial metal. According to the test results of the inventors, it has been found that the antibacterial function differs depending on whether the antibacterial metal in the glass layer is in an atomic state or as an ion, so that X-ray photoelectron spectroscopy is used.
- the method for determining a product of the present invention can be applied to a product of the present invention in which a water-repellent layer containing a water-repellent component is formed on the surface side of a glass layer.
- FIG. 1 is a schematic sectional view of a substrate used in Test 1 and Examples of the present invention.
- FIG. 2 is a schematic enlarged sectional view of a sample according to a test 1 and a product of an example of the present invention.
- ⁇ FIG. 3 is a schematic enlarged sectional view of samples D and E according to a product of a comparative example of test 1.
- FIG. 4 is a schematic enlarged sectional view of a sample according to the product of the example of the present invention.
- FIG. 5 is a schematic enlarged sectional view of a sample according to the product of the example of the present invention.
- FIG. 6 is a schematic enlarged sectional view of a sample according to the product of the example of the present invention.
- FIG. 7 is a graph showing the measurement results of the Ag concentration in the glass layer in Test 2.
- FIG. 8 is a schematic graph showing the measurement results of the Ag concentration of the glass layer in Test 3.
- FIG. 9 is a schematic graph showing the measurement results of the concentration of Ag in the glass layer obtained by the conventional method.
- a base 15 which is a semi-finished product of sanitary ware having a glass layer 12 made of a glaze having the following composition on the surface of a base material 10 is prepared.
- the glass transition point of the glass layer 12 is 700 ° C.
- Zinc flower 2.0
- test pieces were prepared by cutting the base 15 into a square of 50 ⁇ 2 mm square (within a thickness of 10 mm). Each test piece was subjected to a pretreatment consisting of the following steps.
- First step The surface of the glass layer 12 of the test piece is washed with a sponge impregnated with a neutral detergent.
- Step 2 Rinse the surface of the glass layer 12 of the test piece in the order of tap water and distilled water.
- Step 3 The whole test piece is subjected to ultrasonic cleaning with distilled water for 10 minutes, and then rinsed with distilled water. Repeat this operation three times.
- Step 4 Put the test piece in a glass Petri dish and dry it overnight.
- Step 6 As the processing liquid is an antibacterial agent, prepared 3 0 ° C silver nitrate (AgNO 3) solution, 1 sec test piece during the treatment liquid, thereby completely immersed collapsed.
- AgNO 3 silver nitrate
- Step 7 Wash the entire surface of the glass layer 12 of the test piece with distilled water.
- Step 8 The whole test piece is subjected to ultrasonic cleaning with distilled water for 10 minutes, and then rinsed with distilled water.
- sample A a test piece in which the concentration of the aqueous solution of silver nitrate in the sixth step was 0.10 m 01 / L is referred to as sample A.
- Sample B a test piece in which the concentration of the aqueous solution of silver nitrate in the sixth step was 0.20 mo1 / L is designated as Sample B.
- Sample C a test piece in which the concentration of the aqueous silver nitrate solution in the sixth step was 0.4 Omo 1 / L is used as sample C.
- Each sample A to C Prepare 5 pieces at a time.
- the surface of the glass layer 12 of each of the samples A to E was measured for the silver concentration (atom%) by the XPS method (X-ray photoelectron spectroscopy), and an antibacterial test was performed by the film adhesion method.
- the XPS method irradiates the surface of the glass layer 12 of a sample placed in an ultra-vacuum with soft X-rays, which are spectroscopically separated by a curved single crystal, and detects photoelectrons emitted from the surface with an analyzer.
- the information is used for element identification and quantification.
- the elemental information on the surface can be obtained from the binding energy value of the bound electrons in the material, and the valence and bonding state can be obtained from the energy-shift of each beak. It can be quantified using the peak area.
- Table 1 shows the results of the silver concentrations of the samples A to E. “#” Indicates that the value is below the detection limit.
- Table 2 shows the results of the antibacterial activity test for each of the samples A to E.
- Table 1 shows that, as shown in FIG. 2, the glass layers 12 of the samples A to C have a rich layer 13 containing a high concentration of ionic Ag on the surface. This is thought to be due to the fact that ion exchange occurred mainly between K ions and Ag ions whose ionic radii were close to each other. ⁇ In contrast, as shown in Fig. 3, samples D and E did not have rich layers. Thus, it can be seen that Ag in the metallic state exists up to the inside of the glass layer 12. As a result, when the antibacterial agent was diffused from the surfaces of samples A to C, Ag was present in the lithium layer 13 of the glass layer 12 in the ion state, whereas the antibacterial agent was added to the glaze. In this case, it was found that Ag was present in the entire glass layer 12 in a metallic state.
- Step 6 As the processing liquid is an antibacterial agent, concentration prepared silver nitrate (A gN0 3) an aqueous solution of 0. 3 Omo 1 / L, to completely immerse the specimen in the treatment solution.
- concentration prepared silver nitrate A gN0 3
- Step 7 Wash the entire surface of the glass layer 12 of the test piece with distilled water.
- Eighth step After heating the surface of the glass layer 12 of the test piece to 100 ° C., it is rapidly cooled to room temperature.
- Ninth step The entire test piece is subjected to ultrasonic cleaning with distilled water for 10 minutes, and then rinsed with distilled water.
- Step 10 Put the test piece in a glass Petri dish and dry it by desiccation overnight (about 12 hours).
- the condition of the sixth step is set to 10 ° C. X 1 second, and a test piece not subjected to the eighth step is used as sample F.
- the condition of the sixth step is set to 30 ° C. X I second, and the test piece that has not been subjected to the eighth step is sample G.
- the condition of the sixth step is set to 60 ° C. x i seconds, and a test piece which has not been subjected to the eighth step is used as a sample H.
- the condition of the sixth step is set to 60 ° C. ⁇ 180 seconds, and the test piece that has not been subjected to the eighth step is sample I.
- the condition of the sixth step is set to 60 ° C. ⁇ 180 seconds, and the test piece subjected to the eighth step is designated as sample J.
- One sample was prepared for each of these samples F to J.
- the first agent is prepared by co-hydrolyzing these in a hydrophilic solvent consisting of 0.1 IN aqueous hydrochloric acid, t-butanol and hexane. These are considered to have silanol (Si-OH) groups, respectively. Further, the organopolysiloxane (HO- (S i (CH 3 ) 2 0) so- S i (CH 3) 2 ⁇ _H) and prepares a mixture of methanesulfonic acid as a strong acid as a second agent. Then, 5 ml of the first part and 5 ml of the second part are mixed and applied to the surface of the sample, and then left to dry for about 10 minutes. Thereafter, the surface is washed with ethanol and dried.
- a hydrophilic solvent consisting of 0.1 IN aqueous hydrochloric acid, t-butanol and hexane. These are considered to have silanol (Si-OH) groups, respectively.
- the silver concentration (atom%) was measured by the XPS method (X-ray photoelectron spectroscopy) for each of the five samples F to J that had not been subjected to the water-repellent treatment, and the samples F to J that had not been subjected to the water-repellent treatment.
- XPS method X-ray photoelectron spectroscopy
- Table 3 shows the results of the silver concentration of each of the samples F to J that were not subjected to the water-repellent treatment. Note that “#” indicates that the value is below the detection limit.
- Table 4 shows the results of the antibacterial activity test.
- the concentration of Ag in the rich layer 13 is highest on the surface side, and gradually decreases in the depth direction. For this reason, even if the concentration of the processing solution to be used is not so high, an excellent antibacterial action against the bacteria on the surface of the glass layer 12 can be exhibited, so that it can be understood that large consumption of the processing solution can be avoided.
- the glass layers 12 of Samples F to J all showed that the concentration of Ag in the rich layer 13 exceeded twice the concentration of Ag inside 10 nm deep from the surface, and sufficient antibacterial properties were observed. Action was obtained.
- Table 4 shows that even when the surface of the glass layer 12 was subjected to the water-repellent treatment, the antibacterial effect was hardly reduced as compared with the case where the water-repellent treatment was not performed. The reason is that even if the water-repellent layer 14 is formed on the glass layer 12 by the water-repellent treatment as shown in FIG. 5, the thickness is extremely small and the surface hydroxyl group of the glass layer 12 It is considered that the antibacterial effect permeates this drainage layer because it is only bonded to the part.
- both the antibacterial function and the water-repellent function are imparted to the surface of the glass layer 12, and the antibacterial effect is obtained only by the antibacterial function. Even if moisture containing a large amount of dirt components is used, the water repellency of the dirt makes it difficult for dirt to remain, and the antibacterial effect can be sufficiently exhibited.
- the product of this example can be manufactured at low cost and can exhibit excellent antibacterial action.
- a sample K in which Ag was incorporated into the glass layer 12 was produced only by ion exchange performed from the surface side of the glass layer 12.
- the Ag concentration in the glass layer 12 of this sample K was measured by the XPS method, and the relationship between the depth from the surface (nm) and the concentration index (Intensity (Counts)) by natural logarithm was obtained.
- Fig. 7 shows the results.
- K indicates the measurement result for sample K.
- X is a glaze which contains a A g 3 P 0 4 as previously antimicrobial agent according to conventional methods glazed on matrix 1 0 shows a subsequently measured about the those firing results.
- W From Fig. 7, in the case of X according to the conventional method the concentration of Ag is lowest on the surface of the glass layer 12 and gradually increases in the depth direction. In other words, it can be seen that the closer to the surface of the glass layer 12, the lower the concentration of Ag.
- Sample K has a glass layer 12 having a rich layer 13 containing Ag at a high concentration on the surface.
- the rich layer 13 has the highest concentration of Ag on the surface, and the concentration gradually decreases in the depth direction. More specifically, Ag has a concentration that has a peak on the surface side and attenuates in inverse proportion toward the inner side at the back. (Test 3)
- Sample 1 in which Ag was incorporated into the glass layer 12 only by ion exchange performed from the surface side of the glass layer 12 Sample 2 in which Ag was previously contained in the glass layer 12, and Ag is preliminarily included in 12 and a sample 3 in which Ag is taken in by performing ion exchange from the surface side of the glass layer 12 is prepared.
- the Ag concentration in the glass layer 12 of each of the samples 1 to 3 was measured by the XPS method, and the relationship between the depth (nm) from the surface and the concentration index (Intensity (Counts)) by natural logarithm was obtained.
- Fig. 8 shows the model results.
- sample 2 in Fig. 8 when Ag is contained in glass layer 12 in advance, the concentration of those Ag is the lowest on the surface side, and it goes to the inner side at the back. It gradually increases and eventually becomes saturated. This is the same as sample X in Fig. 7.
- the rich layer 13 exerts an excellent antibacterial action before wear from the surface immediately after use, and when the wear progresses from the surface to some extent after use, the internal Ag causes a slight increase. It can be seen that excellent antibacterial action is exhibited. For this reason, it can be seen that, in such a case, the action of Ag can be exerted at an early stage, and it is possible to achieve both an improvement in durability and a reduction in manufacturing cost.
- the water concentration of the glass layer 12 of Sample 3 was treated to form a water-repellent layer 14, and the Ag concentration in the glass layer 12 was measured by the XPS method.
- the relationship between the depth from the surface (nm) and the concentration index (Intensity (Counts)) by natural logarithm was determined.
- the method of water repellency treatment was the same as the case where samples F to J were subjected to water repellency treatment.
- the glass layer 12 has a rich layer 13 containing Ag at a high concentration on the surface and also contains Ag inside the rich layer 13. I knew I was out.
- the surface has the water-repellent layer 14 as shown in FIG. 6, so that the antibacterial effect alone becomes insufficient with the antibacterial function alone. Even if water containing a large amount of dirt components is used, the water repellent function makes it difficult for dirt to remain, and the antibacterial effect can be sufficiently exhibited.
- the product of the present invention can be manufactured at low cost and can exhibit excellent antibacterial action.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001224043A AU2001224043A1 (en) | 2000-01-14 | 2000-12-27 | Product having glass layer and method for assessing the same |
EP00987780A EP1270527A4 (en) | 2000-01-14 | 2000-12-27 | PRODUCT COMPRISING A GLASS LAYER AND METHOD OF OBTAINING THE SAME |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-6561 | 2000-01-14 | ||
JP2000-6572 | 2000-01-14 | ||
JP2000006572A JP2001199821A (ja) | 2000-01-14 | 2000-01-14 | ガラス層をもつ製品及びその判断方法 |
JP2000006561 | 2000-01-14 | ||
JP2000269775A JP2001261379A (ja) | 2000-01-14 | 2000-09-06 | ガラス層をもつ製品及びその判断方法 |
JP2000-269775 | 2000-09-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001051426A1 true WO2001051426A1 (fr) | 2001-07-19 |
Family
ID=27342049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/009370 WO2001051426A1 (fr) | 2000-01-14 | 2000-12-27 | Produit constitue d'une couche de verre et son procede d'obtention |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1270527A4 (ja) |
AU (1) | AU2001224043A1 (ja) |
TW (1) | TWI291941B (ja) |
WO (1) | WO2001051426A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9028962B2 (en) | 2011-03-28 | 2015-05-12 | Corning Incorporated | Antimicrobial action of Cu, CuO and Cu2O nanoparticles on glass surfaces and durable coatings |
CN113716976A (zh) * | 2020-05-25 | 2021-11-30 | 重庆鑫景特种玻璃有限公司 | 一种抗菌陶瓷及其制备方法 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1419118B1 (de) | 2001-08-22 | 2006-07-12 | Schott Ag | Antimikrobielles, entzündungshemmendes, wundheilendes glaspulver und dessen verwendung |
JP4602320B2 (ja) | 2003-02-25 | 2010-12-22 | ショット アクチエンゲゼルシャフト | 抗微生物作用リン酸ガラス |
WO2005042437A2 (en) * | 2003-09-30 | 2005-05-12 | Schott Ag | Antimicrobial glass and glass ceramic surfaces and their production |
PT105240A (pt) * | 2010-08-06 | 2012-02-06 | Univ Aveiro | Processo de obtenção e utilização de grês porcelânico com acção anti-microbiana |
US8973401B2 (en) * | 2010-08-06 | 2015-03-10 | Corning Incorporated | Coated, antimicrobial, chemically strengthened glass and method of making |
KR20150125951A (ko) | 2013-02-11 | 2015-11-10 | 코닝 인코포레이티드 | 항균성 유리 제품 및 그 제조 방법 및 이용 방법 |
US20140356605A1 (en) * | 2013-05-31 | 2014-12-04 | Corning Incorporated | Antimicrobial Articles and Methods of Making and Using Same |
US9512035B2 (en) | 2013-06-17 | 2016-12-06 | Corning Incorporated | Antimicrobial glass articles with improved strength and methods of making and using same |
JP2017511785A (ja) | 2014-02-13 | 2017-04-27 | コーニング インコーポレイテッド | 強度および抗菌性を高めたガラス、およびそれを製造する方法 |
EP3134369A1 (en) | 2014-04-23 | 2017-03-01 | Corning Incorporated | Antimicrobial articles with silver-containing alkali silicate coating and methods of making thereof |
US9840438B2 (en) | 2014-04-25 | 2017-12-12 | Corning Incorporated | Antimicrobial article with functional coating and methods for making the antimicrobial article |
CN107922257A (zh) | 2015-09-02 | 2018-04-17 | 康宁股份有限公司 | 抗微生物‑抗反射制品及其制造方法 |
DE102016125544B4 (de) * | 2016-12-23 | 2020-10-01 | Glaswerke Arnold Gmbh & Co. Kg | Verfahren zur Herstellung einer biozid wirkenden Glasoberfläche eines Kalk-Natronsilicatglases |
CN110510878B (zh) * | 2019-10-09 | 2022-02-18 | 山东健能陶瓷科技有限公司 | 具有抗菌功能的陶瓷釉料及其制备方法和陶瓷 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09202678A (ja) * | 1996-01-23 | 1997-08-05 | Dantoo Kk | 抗菌性を有するタイルの製造方法 |
JPH107438A (ja) * | 1996-06-19 | 1998-01-13 | Shin Etsu Chem Co Ltd | 防汚処理された物品 |
JPH10158036A (ja) * | 1996-11-22 | 1998-06-16 | Akechi Ceramics Kk | 表面抗菌処理方法 |
JP2000053451A (ja) * | 1998-08-05 | 2000-02-22 | Sumitomo Osaka Cement Co Ltd | 抗菌性ガラス製品およびその製造方法 |
JP2001019573A (ja) * | 1999-07-09 | 2001-01-23 | Toto Ltd | 施釉製品及びその製造方法 |
JP2001048595A (ja) * | 1999-03-19 | 2001-02-20 | Inax Corp | ガラス層をもつ基体の表面処理方法及びその製品 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1186757A (ja) * | 1997-09-04 | 1999-03-30 | Nippon Electric Glass Co Ltd | ブラウン管用パネル |
-
2000
- 2000-12-27 WO PCT/JP2000/009370 patent/WO2001051426A1/ja active Application Filing
- 2000-12-27 AU AU2001224043A patent/AU2001224043A1/en not_active Abandoned
- 2000-12-27 EP EP00987780A patent/EP1270527A4/en not_active Withdrawn
-
2001
- 2001-01-12 TW TW90100720A patent/TWI291941B/zh not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09202678A (ja) * | 1996-01-23 | 1997-08-05 | Dantoo Kk | 抗菌性を有するタイルの製造方法 |
JPH107438A (ja) * | 1996-06-19 | 1998-01-13 | Shin Etsu Chem Co Ltd | 防汚処理された物品 |
JPH10158036A (ja) * | 1996-11-22 | 1998-06-16 | Akechi Ceramics Kk | 表面抗菌処理方法 |
JP2000053451A (ja) * | 1998-08-05 | 2000-02-22 | Sumitomo Osaka Cement Co Ltd | 抗菌性ガラス製品およびその製造方法 |
JP2001048595A (ja) * | 1999-03-19 | 2001-02-20 | Inax Corp | ガラス層をもつ基体の表面処理方法及びその製品 |
JP2001019573A (ja) * | 1999-07-09 | 2001-01-23 | Toto Ltd | 施釉製品及びその製造方法 |
Non-Patent Citations (2)
Title |
---|
MASAYUKI YAMANE ET AL.: "Glass kougaku hand book", 5 July 1999, ASAKURA SHOTEN, XP002937347 * |
See also references of EP1270527A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9028962B2 (en) | 2011-03-28 | 2015-05-12 | Corning Incorporated | Antimicrobial action of Cu, CuO and Cu2O nanoparticles on glass surfaces and durable coatings |
US9439439B2 (en) | 2011-03-28 | 2016-09-13 | Corning Incorporated | Antimicrobial action of Cu, CuO and Cu2O nanoparticles on glass surfaces and durable coatings |
CN113716976A (zh) * | 2020-05-25 | 2021-11-30 | 重庆鑫景特种玻璃有限公司 | 一种抗菌陶瓷及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
TWI291941B (ja) | 2008-01-01 |
AU2001224043A1 (en) | 2001-07-24 |
EP1270527A1 (en) | 2003-01-02 |
EP1270527A4 (en) | 2005-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001051426A1 (fr) | Produit constitue d'une couche de verre et son procede d'obtention | |
JP5836377B2 (ja) | 被覆された、抗菌性の化学強化ガラスおよびその製造方法 | |
JP4056877B2 (ja) | ガラス層をもつ製品 | |
US6673433B1 (en) | Stainproof material and method for manufacturing the same, and coating composition and apparatus thereof | |
DE60310136T2 (de) | Wasserabweisende oberflächenbehandlung und behandelte artikel | |
TWI285694B (en) | Long-term antibiotic and deodorant textile and preparation method thereof | |
US20140356406A1 (en) | Antimicrobial Articles and Methods of Making and Using Same | |
JP2000053451A (ja) | 抗菌性ガラス製品およびその製造方法 | |
JP6286562B2 (ja) | 表面処理された基材およびこのための基材の表面処理方法 | |
JP2001261379A (ja) | ガラス層をもつ製品及びその判断方法 | |
KR20010079620A (ko) | 위생도기 | |
JP2001080941A (ja) | ガラス層をもつ基体の防汚処理方法及びその製品 | |
JP2001048595A (ja) | ガラス層をもつ基体の表面処理方法及びその製品 | |
JP2001199821A (ja) | ガラス層をもつ製品及びその判断方法 | |
JP2002211992A (ja) | ガラス層をもつ製品及びその製造方法 | |
JP2002193690A (ja) | 防汚処理方法及びガラス層をもつ製品 | |
KR20230000292A (ko) | 욕실용 유리 및 이의 제조 방법 | |
CN113463158B (zh) | 一种铝合金的表面抗菌阳极氧化工艺 | |
CN112094134A (zh) | 含有锌置换工艺制备的抗菌剂的天然石材及其制备工艺 | |
CN118026730A (en) | Long-acting antibacterial artificial stone and preparation method thereof | |
JP2002193692A (ja) | 強化陶磁器及びその製造方法 | |
TW200835833A (en) | Method for manufacturing anti-staining and self-cleaning surface-decorative construction material | |
CZ2006491A3 (cs) | Materiál k odstranení prosákavých kapalin a nesmácivých efektu | |
JP2001170143A (ja) | 抗菌・防汚性物品及びその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000987780 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWP | Wipo information: published in national office |
Ref document number: 2000987780 Country of ref document: EP |