JP2970973B2 - Antibacterial ceramic products and their manufacturing method - Google Patents
Antibacterial ceramic products and their manufacturing methodInfo
- Publication number
- JP2970973B2 JP2970973B2 JP4284773A JP28477392A JP2970973B2 JP 2970973 B2 JP2970973 B2 JP 2970973B2 JP 4284773 A JP4284773 A JP 4284773A JP 28477392 A JP28477392 A JP 28477392A JP 2970973 B2 JP2970973 B2 JP 2970973B2
- Authority
- JP
- Japan
- Prior art keywords
- antibacterial
- glaze
- ceramic
- calcium phosphate
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000919 ceramic Substances 0.000 title claims description 49
- 230000000844 anti-bacterial effect Effects 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000001506 calcium phosphate Substances 0.000 claims description 17
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 17
- -1 calcium phosphate compound Chemical class 0.000 claims description 17
- 235000011010 calcium phosphates Nutrition 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 13
- 229910021645 metal ion Inorganic materials 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 239000011701 zinc Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 7
- 239000003242 anti bacterial agent Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 3
- 241000233866 Fungi Species 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 125000001475 halogen functional group Chemical group 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical class [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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
-
- 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
- C04B41/5076—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 masses bonded by inorganic cements
- C04B41/5092—Phosphate cements
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/67—Biocides
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00965—Uses not provided for elsewhere in C04B2111/00 for household applications, e.g. use of materials as cooking ware
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Glass Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は抗菌性窯業製品とその製
造方法にかかり、詳しくは抗菌性を有した釉薬剤が施釉
されたことにより細菌・黴などの微生物に汚染されず、
常に清潔で衛生的なものとなる抗菌性窯業製品とその製
造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial ceramic product and a method for producing the same. More specifically, the present invention is not contaminated by microorganisms such as bacteria and fungi due to being glazed with an antibacterial glaze.
The present invention relates to an antibacterial ceramic product which is always clean and sanitary, and a method for producing the same.
【０００２】[0002]
【従来の技術】便器、洗面器、浴槽といった製品は、人
間が生活上直接肌を触れ、あるいは肌が極めて近づく機
会が多いことから、衛生的であること、さらに美観を備
えていることが要求されている。このような要求に応え
るべく、前記便器等の製品は従来窯業製品によって作ら
れている。この理由は、窯業製品の表面が釉薬、すなわ
ちガラスでコーティングされているためであり、釉薬に
よって形成される層が緻密で吸水性がなく、しかも表面
が滑らかで傷が付きにくいため、衛生面での要求や美観
にも十分に応えてきているのである。2. Description of the Related Art Products such as toilets, washbasins, and bathtubs are required to be sanitary and have aesthetic appearance, since humans often come into direct contact with their skin in their daily lives or get very close to the skin. Have been. In order to respond to such demands, products such as the above-mentioned toilets have conventionally been made of ceramic products. The reason for this is that the surface of ceramic products is coated with glaze, that is, glass, and the layer formed by the glaze is dense and has no water absorption. It has fully responded to the demands and aesthetics.
【０００３】しかし、近年前記製品に加えタイルやコッ
プ等の窯業製品に対し、その衛生面での要求がさらに高
まってきている。すなわち、このような窯業製品にあっ
ても黴等の菌が繁殖するため、十分な清潔感が得られ
ず、また菌の繁殖が汚れとなって現われるからであり、
したがってこのような菌の繁殖を防止することが望まれ
ているのである。従来、このような菌の繁殖を防止する
には、例えば前記窯業製品の表面に市販の抗菌剤をスプ
レー等で塗布することが行われている。なぜなら、これ
らの窯業製品には抗菌性がないため、これをより衛生的
にするためには抗菌剤を塗布することが有効だからであ
る。However, in recent years, sanitary requirements for ceramic products such as tiles and cups in addition to the above products have been increasing. In other words, even in such ceramic products, fungi such as mold proliferate, so that it is not possible to obtain a sufficient clean feeling, and because the reproduction of bacteria appears as dirt,
Therefore, it is desired to prevent the propagation of such bacteria. Conventionally, in order to prevent the propagation of such bacteria, for example, a commercially available antibacterial agent is applied to the surface of the ceramic product by spraying or the like. This is because these ceramic products do not have antibacterial properties, and to make them more sanitary, it is effective to apply an antibacterial agent.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述し
たように窯業製品の表面に市販の抗菌剤を塗布しても、
例えば水に流されてしまうなどの理由により抗菌剤が容
易に窯業製品から除かれてしまうため耐久性に劣り、し
たがって抗菌力が短期間のうちに低下し消失してしまう
といった欠点がある。すなわち、従来一般に市販されて
いる抗菌剤は窯業製品の表面との接着力が弱く、そのた
め抗菌剤が窯業製品から容易に剥離してしまい、結果と
して抗菌性が消失してしまうからである。However, even if a commercially available antibacterial agent is applied to the surface of a ceramic product as described above,
For example, the antibacterial agent is easily removed from the ceramic products due to reasons such as being washed away with water, and thus has poor durability. Therefore, there is a disadvantage that the antibacterial activity is reduced and disappears in a short period of time. That is, the antibacterial agent which is conventionally commercially available has a weak adhesive force to the surface of the ceramic product, and therefore the antibacterial agent is easily peeled off from the ceramic product, and as a result, the antibacterial property is lost.
【０００５】ところで、銀、銅、亜鉛といった金属のイ
オンは抗菌性を有しており、したがってこれら金属の易
溶性化合物もすべて抗菌性を有している。しかし、易溶
性化合物は短時間のうちに溶解・消失してしまうため、
これに耐久性を期待することはできず、一方これら金属
の難溶性化合物は耐久性については期待できるものの、
抗菌性を発現することはない。しかし、これら金属イオ
ンをイオン交換体に固定すれば、抗菌性の発現性を失う
ことなくしかも耐久性に優れた抗菌剤を得ることが可能
になるのである。したがって、このような抗菌剤を窯業
製品の表面に塗布すれば、製品表面は常に衛生的になる
と考えられる。[0005] Incidentally, ions of metals such as silver, copper and zinc have antibacterial properties, and therefore, all readily soluble compounds of these metals also have antibacterial properties. However, since easily soluble compounds dissolve and disappear in a short time,
It cannot be expected to be durable, while the poorly soluble compounds of these metals can be expected for durability,
It does not exhibit antibacterial properties. However, if these metal ions are fixed to the ion exchanger, it becomes possible to obtain an antibacterial agent having excellent durability without losing the antibacterial property. Therefore, if such an antibacterial agent is applied to the surface of a ceramic product, the product surface will always be sanitary.
【０００６】しかしながら、前記抗菌剤を単に製品表面
に塗布しても、前述した一般に市販されている抗菌剤と
同様に製品への接着力が弱く、やはり短期間で剥がれ落
ちるといった欠点がある。本発明は前記事情に鑑みてな
されたもので、その目的とするところは、耐久性に優
れ、長期間に亙って抗菌性を保持する窯業製品とその製
造方法を提供することにある。However, even when the antibacterial agent is simply applied to the surface of the product, the adhesive strength to the product is weak as in the case of the above-mentioned commercially available antibacterial agent, and there is a disadvantage that the antibacterial agent is peeled off in a short period of time. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ceramic product which has excellent durability and maintains antibacterial properties for a long period of time, and a method for producing the same.
【０００７】[0007]
【課題を解決するための手段】本発明における請求項１
記載の抗菌性窯業製品は、銀、銅、亜鉛のうちの少なく
とも１種の金属イオンを含有するリン酸カルシウム化合
物と釉薬との混合物が、陶磁器基材の表面上に焼き付け
られてなることを前記課題の解決手段とした。請求項２
記載の抗菌性窯業製品の製造方法では、銀、銅、亜鉛の
うちの少なくとも１種の金属イオンを含有するリン酸カ
ルシウム化合物と釉薬との混合物を陶磁器基材表面に塗
り、次いで該基材を焼成し、その後該基材を酸で洗浄す
ることを前記課題の解決手段とした。Means for Solving the Problems Claim 1 of the present invention
The antibacterial ceramic product according to the above, wherein a mixture of a calcium phosphate compound containing at least one metal ion of silver, copper, and zinc and a glaze is baked on the surface of the ceramic base material. The solution. Claim 2
In the method for producing an antibacterial ceramic product described, silver, copper, a mixture of a calcium phosphate compound containing at least one metal ion of zinc and a glaze is applied to the surface of a ceramic substrate, and then the substrate is fired. Then, washing the substrate with an acid is a means for solving the above problem.
【０００８】以下、本発明を詳しく説明する。本発明の
抗菌性窯業製品は、具体的な対象としてはタイル、便
器、洗面器、浴槽、コップ等であり、銀、銅、亜鉛のう
ちの少なくとも１種の抗菌性金属イオンを含有するリン
酸カルシウム化合物と釉薬との混合物が、陶磁器基材の
表面上に焼き付けられてなるものである。このような抗
菌性窯業製品において用いられる銀、銅、亜鉛のイオン
を含有したリン酸カルシウム化合物は、その特徴の一つ
として抗菌性を有することが挙げられる。Hereinafter, the present invention will be described in detail. The antibacterial ceramic product of the present invention is specifically a tile, a toilet, a basin, a bathtub, a cup, and the like, and a calcium phosphate compound containing at least one antibacterial metal ion of silver, copper, and zinc. And a mixture of glaze are baked on the surface of the ceramic substrate. One of the features of the calcium phosphate compound containing silver, copper and zinc ions used in such antibacterial ceramic products is that they have antibacterial properties.
【０００９】すなわち、一般にリン酸カルシウム化合物
は溶融ガラスに対して安定であり、したがって高温で溶
融した釉薬に対しても安定であるため、銀、銅、亜鉛の
イオンを含有するリン酸カルシウム化合物は釉薬の中で
も前記金属イオンの特性である抗菌性を発揮するものと
なるのである。なお、このようなリン酸カルシウム化合
物において、フッ素を含むものは特に溶融釉薬中での安
定性に優れているため、前記銀、銅、亜鉛のイオンに加
えフッ素をも含有したリン酸カルシウム化合物を釉薬に
混合するのが好ましい。また、このようなリン酸カルシ
ウム化合物と混合される釉薬としては、ホーロー釉や陶
器釉など従来一般に使用されるものが本発明においても
用いられる。That is, calcium phosphate compounds are generally stable to molten glass and, therefore, stable to glazes melted at high temperatures. Therefore, calcium phosphate compounds containing ions of silver, copper and zinc are among the glazes described above. It exhibits the antibacterial property of metal ions. Among such calcium phosphate compounds, those containing fluorine are particularly excellent in stability in a molten glaze. Therefore, the calcium phosphate compound containing fluorine in addition to the silver, copper, and zinc ions is mixed with the glaze. Is preferred. As the glaze to be mixed with such a calcium phosphate compound, a conventionally used glaze such as an enamel glaze or a ceramic glaze is also used in the present invention.
【００１０】このようなリン酸カルシウム化合物からな
る抗菌剤を含む釉薬を、陶磁器基材に塗布、すなわち施
釉するには、従来一般に用いられている施釉方法、例え
ば吹き付け、流しかけ、浸しがけといった方法が採用さ
れる。なお、前記リン酸カルシウム化合物を含まない通
常の釉薬を塗布した後に、本発明に用いられる、前記リ
ン酸カルシウム化合物を含有してなる釉薬をその表面に
吹き付けるようにしてもよい。In order to apply a glaze containing an antibacterial agent comprising such a calcium phosphate compound to a ceramic substrate, that is, to apply a glaze, a conventionally used glaze method such as spraying, pouring, and soaking is adopted. Is done. After the usual glaze containing no calcium phosphate compound is applied, the glaze containing the calcium phosphate compound used in the present invention may be sprayed on the surface.
【００１１】そして、施釉後の窯業製品については従来
のものと同様にして焼成し、さらに焼成後の窯業製品を
酸で洗浄する。ここで、酸で洗浄するのは抗菌力を高め
るためである。使用される酸としては特に制限はなく、
塩酸、硫酸、硝酸等の強酸では１％程度の濃度のもので
十分抗菌力を高めることができ、また酢酸、クエン酸等
の弱酸では５％程度の濃度のもので十分抗菌力を高める
ことができる。このようにして得られる本発明の抗菌性
窯業製品は、前記抗菌性金属イオンを含有してなるリン
酸カルシウム化合物が釉薬中に存在するため、陶磁器基
材から剥離することなく、したがって抗菌性を有するの
はもちろんその耐久性についてもきわめて優れたものと
なる。Then, the ceramic product after glazing is fired in the same manner as the conventional one, and the fired ceramic product is washed with acid. Here, washing with an acid is for enhancing antibacterial activity. There is no particular limitation on the acid used,
A strong acid such as hydrochloric acid, sulfuric acid or nitric acid can sufficiently increase the antibacterial activity at a concentration of about 1%, and a weak acid such as acetic acid or citric acid can sufficiently enhance the antibacterial activity at a concentration of about 5%. it can. The antibacterial ceramic product of the present invention thus obtained does not peel off from the ceramic substrate because the calcium phosphate compound containing the antibacterial metal ion is present in the glaze, and thus has antibacterial properties. Of course, its durability is extremely excellent.
【００１２】[0012]
【作用】本発明における請求項１記載の抗菌性窯業製品
では、銀、銅、亜鉛のうちの少なくとも１種の金属イオ
ンがイオン交換体であるリン酸カルシウム化合物にイオ
ン交換された状態で担持含有されているため、通常８０
０〜１３００℃で製品に溶融固着される釉薬中に混合し
てもこの焼成温度にて金属イオンが十分安定となり、し
かも焼成後は硬化した釉薬中に残留して陶磁器基材表面
に固定される。請求項２記載の抗菌性窯業製品の製造方
法によれば、抗菌性金属イオンを含有するリン酸カルシ
ウム化合物と釉薬との混合物を陶磁器基材表面に塗り、
焼成した後該基材を酸で洗浄するので、この酸洗浄によ
りリン酸カルシウム化合物の表面が活性化し、その抗菌
性が高まる。In the antibacterial ceramic product according to the first aspect of the present invention, at least one metal ion of silver, copper and zinc is carried and contained in a state of being ion-exchanged with a calcium phosphate compound as an ion exchanger. Usually 80
Even when mixed in a glaze that is melted and fixed to the product at 0 to 1300 ° C., the metal ions become sufficiently stable at this firing temperature, and after firing, remain in the hardened glaze and are fixed to the surface of the ceramic substrate. . According to the method for producing an antibacterial ceramic product according to claim 2, a mixture of a calcium phosphate compound containing an antibacterial metal ion and a glaze is applied to the surface of the ceramic substrate,
After baking, the base material is washed with an acid, so that the acid washing activates the surface of the calcium phosphate compound and enhances its antibacterial property.
【００１３】[0013]
【実施例】以下、本発明を実施例によりさらに具体的に
説明する。表１に示した成分比を有する抗菌剤を、釉薬
と混合して表２に示す条件で矩形板状陶磁器基材に施釉
・焼成し、得られた窯業製品の抗菌力をハローテスト
［ＡＡＴＣＣ Ｔｅｓｔ Ｍｅｔｈｏｄ ９０（１９８
２）］に準拠して試験し、評価した。なお、表２中の添
加量は抗菌剤と釉薬との混合物中における抗菌剤の重量
比を示す。ここで、抗菌剤の作製については、水酸化カ
ルシウム、リン酸、および他の成分についてはその硝酸
塩溶液を水に懸濁させ、合成した。また、焼成後１％−
塩酸で洗浄し、同様にしてハローテストを行った。な
お、釉薬としては衛生陶器用のものを用いた。また、試
験菌には大腸菌を用いた。得られた結果を表２に併記す
る。EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples. An antibacterial agent having a component ratio shown in Table 1 was mixed with a glaze, glazed and fired on a rectangular plate-shaped ceramic base material under the conditions shown in Table 2, and the antibacterial activity of the obtained ceramic product was tested by a halo test [AATCC Test]. Method 90 (198
2)] and evaluated. In addition, the addition amount in Table 2 shows the weight ratio of the antibacterial agent in the mixture of the antibacterial agent and the glaze. Here, for preparation of the antibacterial agent, calcium hydroxide, phosphoric acid, and other components were synthesized by suspending a nitrate solution in water. Also, 1% after firing
After washing with hydrochloric acid, a halo test was performed in the same manner. The glaze used was for sanitary ware. Escherichia coli was used as a test bacterium. The obtained results are also shown in Table 2.
【表１】 [Table 1]
【表２】 [Table 2]
【００１４】表２より、抗菌剤の添加量が増加すること
により抗菌力が高まることが明かになった。また、抗菌
力は銀＞銅＞亜鉛の順に高く、さらにフッ素を添加する
ことによって耐熱性が高まることが明かになった。ま
た、酸による洗浄により抗菌力が高まることが確認され
た。次に、表２中の試験番号１の試料について種々の菌
に対する抗菌スペクトルを測定し、その結果を表３に示
す。From Table 2, it was clarified that the antibacterial activity was increased by increasing the amount of the antibacterial agent added. The antibacterial activity was higher in the order of silver>copper> zinc, and it was clarified that the heat resistance was increased by adding fluorine. In addition, it was confirmed that the antibacterial activity was increased by washing with an acid. Next, the antibacterial spectrum against various bacteria was measured for the sample of Test No. 1 in Table 2, and the results are shown in Table 3.
【表３】 表３より、本発明品は広い抗菌スペクトルを示すことが
明かになった。[Table 3] Table 3 shows that the product of the present invention shows a broad antibacterial spectrum.
【００１５】また、表１に示した４種の抗菌剤を前記釉
薬に混ぜ、得られた混合物を各種陶磁器基材に施釉し、
焼成、酸洗浄してタイル、便器、洗面器、浴槽、コップ
をそれぞれ作製した。得られた窯業製品を観察したとこ
ろ従来の抗菌剤を入れないものと全く変わりなく、また
前記ハローテストを行ったところいずれも表２に示す結
果とほぼ同様の結果が得られた。Further, the four kinds of antibacterial agents shown in Table 1 were mixed with the above glaze, and the obtained mixture was applied to various ceramic base materials,
After baking and acid washing, tiles, toilet bowls, washbasins, bathtubs, and cups were prepared. Observation of the obtained ceramic product showed no difference from the conventional product without an antibacterial agent. When the above-mentioned halo test was carried out, almost all the results shown in Table 2 were obtained.
【００１６】[0016]
【発明の効果】以上説明したように本発明における請求
項１記載の抗菌性窯業製品は、抗菌性金属イオンが焼成
後硬化した釉薬中に残留して陶磁器基材表面に固定され
るため、こすったり洗ったりしても抗菌剤（抗菌性イオ
ン）が基材表面から消失することなく、したがって長期
に亙って黴等の菌の繁殖を防止できることからきわめて
衛生的なものとなり、しかも菌の繁殖に起因する汚れも
生じないため長期間その美観を保持するものとなる。請
求項２記載の抗菌性窯業製品の製造方法は、抗菌性金属
イオンを含有するリン酸カルシウム化合物と釉薬との混
合物を陶磁器基材表面に塗り、焼成した後該基材を酸で
洗浄するので、この酸洗浄によりリン酸カルシウム化合
物の表面を活性化して抗菌性を高めることができ、した
がってより抗菌性の高い窯業製品を製造することができ
る。As described above, in the antibacterial ceramic product according to the first aspect of the present invention, the antibacterial metal ions remain in the hardened glaze after firing and are fixed to the surface of the ceramic base material. The antibacterial agent (antibacterial ion) does not disappear from the surface of the base material even when washed or washed, so that the growth of fungi such as molds can be prevented for a long period of time. Since no dirt is caused by this, the aesthetic appearance is maintained for a long time. In the method for manufacturing an antibacterial ceramic product according to claim 2, a mixture of a calcium phosphate compound containing an antibacterial metal ion and a glaze is applied to the surface of a ceramic base material, and after firing, the base material is washed with an acid. Acid cleaning can activate the surface of the calcium phosphate compound to enhance antibacterial properties, and thus produce a ceramic product with higher antibacterial properties.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ０４Ｂ 41/86 Ｃ０４Ｂ 41/86 Ａ (72)発明者 熊倉 信幸 千葉県船橋市豊富町585番地 住友セメ ント株式会社中央研究所内 (72)発明者 矢澤 孝子 千葉県船橋市豊富町585番地 住友セメ ント株式会社中央研究所内 (56)参考文献 特開 平５−201747（ＪＰ，Ａ) 特開 平３−218765（ＪＰ，Ａ) 特開 平７−196384（ＪＰ，Ａ) 特開 平４−300975（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) C03C 8/00 - 8/24 C04B 41/86 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C04B 41/86 C04B 41/86 A (72) Inventor Nobuyuki Kumakura 585 Tomimachi, Funabashi-shi, Chiba Sumitomo Cement Co., Ltd. Central Research Laboratory (72) Inventor Takako Yazawa 585 Tomimachi, Funabashi-shi, Chiba Sumitomo Cement Co., Ltd. Central Research Laboratory (56) References JP-A-5-201747 (JP, A) JP-A-3-218765 (JP, A) JP-A-7-196384 (JP, A) JP-A-4-300975 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C03C 8/00-8/24 C04B 41/86
Claims (4)
金属イオンを含有するリン酸カルシウム化合物と釉薬と
の混合物が、陶磁器基材の表面上に焼き付けられてなる
抗菌性窯業製品。1. An antibacterial ceramic product, wherein a mixture of a calcium phosphate compound containing at least one metal ion of silver, copper and zinc and a glaze is baked on the surface of a ceramic substrate.
金属イオンを含有するリン酸カルシウム化合物と釉薬と
の混合物を陶磁器基材表面に塗り、次いで該基材を焼成
し、その後該基材を酸で洗浄することを特徴とする抗菌
性窯業製品の製造方法。2. A mixture of a calcium phosphate compound containing at least one metal ion of silver, copper, and zinc and a glaze is applied to the surface of a ceramic substrate, and then the substrate is fired. A method for producing an antibacterial ceramic product, comprising washing with an acid.
て、陶磁器基材がタイル、便器、洗面器、浴槽、コップ
のいずれかである抗菌性窯業製品。3. The antibacterial ceramic product according to claim 1, wherein the ceramic substrate is any one of a tile, a toilet, a basin, a bathtub, and a cup.
法において、陶磁器基材がタイル、便器、洗面器、浴
槽、コップのいずれかである抗菌性窯業製品の製造方
法。4. The method for producing an antibacterial ceramic product according to claim 2, wherein the ceramic substrate is any one of a tile, a toilet, a basin, a bathtub, and a cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284773A JP2970973B2 (en) | 1992-10-22 | 1992-10-22 | Antibacterial ceramic products and their manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4284773A JP2970973B2 (en) | 1992-10-22 | 1992-10-22 | Antibacterial ceramic products and their manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06127975A JPH06127975A (en) | 1994-05-10 |
| JP2970973B2 true JP2970973B2 (en) | 1999-11-02 |
Family
ID=17682831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4284773A Expired - Fee Related JP2970973B2 (en) | 1992-10-22 | 1992-10-22 | Antibacterial ceramic products and their manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2970973B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994027442A1 (en) * | 1993-05-31 | 1994-12-08 | Sumitomo Osaka Cenent Co., Ltd. | Antibacterial mildewproof glaze composition for ceramic products |
| JP2770264B2 (en) * | 1995-01-12 | 1998-06-25 | 株式会社萩原技研 | Crystalline antibacterial composition |
| KR20010066766A (en) * | 1999-12-02 | 2001-07-11 | 박세균 | Method of making silver-contained tile and tile therefore |
| KR100516931B1 (en) * | 2005-02-03 | 2005-09-26 | (주)케이티 세라믹 | Method of manufacturing for functional tile |
| JP6670055B2 (en) * | 2015-08-13 | 2020-03-18 | 石塚硝子株式会社 | Glass film forming material and glass coated product using the same |
| CN105565670B (en) * | 2016-01-12 | 2018-08-14 | 曹文 | A kind of ceramics or enamel sterilization glazing type material and preparation method thereof and its application |
| CN113860734B (en) * | 2021-09-30 | 2023-03-28 | 广东松发陶瓷股份有限公司 | Ceramic glaze with antibacterial function and preparation method and application thereof |
-
1992
- 1992-10-22 JP JP4284773A patent/JP2970973B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06127975A (en) | 1994-05-10 |
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