JP3179738U - Ceramic tableware with photocatalytic action - Google Patents
Ceramic tableware with photocatalytic action Download PDFInfo
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- JP3179738U JP3179738U JP2012005403U JP2012005403U JP3179738U JP 3179738 U JP3179738 U JP 3179738U JP 2012005403 U JP2012005403 U JP 2012005403U JP 2012005403 U JP2012005403 U JP 2012005403U JP 3179738 U JP3179738 U JP 3179738U
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- glaze
- tableware
- titanium oxide
- ceramic
- photocatalytic action
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- 239000000919 ceramic Substances 0.000 title claims abstract description 22
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 17
- 241001122767 Theaceae Species 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 235000014347 soups Nutrition 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 239000011941 photocatalyst Substances 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- FZFYOUJTOSBFPQ-UHFFFAOYSA-M dipotassium;hydroxide Chemical compound [OH-].[K+].[K+] FZFYOUJTOSBFPQ-UHFFFAOYSA-M 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000000843 anti-fungal effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
【課題】酸化チタンをコーティングしないで手間を掛けずに製造可能な光触媒作用を有する陶磁製食器を提供する。
【解決手段】素焼きされた茶碗、大皿、小皿、茶碗、汁椀、どんぶり等の食器の形状をした陶磁製の成型品１の表面に、光触媒作用を有する酸化チタンを含む釉薬２が施釉されて焼成により釉薬層が形成されている陶磁製食器である。酸化チタンの添加割合は、質量比で釉薬に対して０．５〜３０％にする。
【選択図】図１Disclosed is a ceramic tableware having a photocatalytic action, which can be produced without coating with titanium oxide.
[MEANS FOR SOLVING PROBLEMS] A glaze 2 containing titanium oxide having a photocatalytic action is applied to the surface of a ceramic molded product 1 in the shape of tableware such as unglazed tea bowls, platters, small dishes, tea bowls, soup bowls and bowls. It is a ceramic tableware with a glaze layer formed by baking. The addition ratio of titanium oxide is 0.5-30% with respect to the glaze by mass ratio.
[Selection] Figure 1
Description
本考案は、光触媒作用を有する陶磁製食器に関する。 The present invention relates to a ceramic tableware having a photocatalytic action.
従来、陶磁製食器に抗菌性を付与する手段として、陶磁製食器の表面に光触媒をコーティングすることが知られている。 Conventionally, as a means for imparting antibacterial properties to ceramic tableware, it is known to coat the surface of the ceramic tableware with a photocatalyst.
酸化チタンは光触媒機能を有し、光触媒反応は、光エネルギーを受けることによって励起して触媒作用を起こし、表面を殺菌し、表面に付着した汚れ、臭いが強力に分解、除去されることになる。光エネルギーが自然光、蛍光灯の微弱な光の場合（１ミリワット／ｃｍ2 以下のレベル）であっても、十分に汚れ、臭い等を分解することができる。しかも、酸化反応によって抗菌作用を発揮することができる。 Titanium oxide has a photocatalytic function, and the photocatalytic reaction is excited by receiving light energy to cause a catalytic action, sterilizing the surface, and dirt and odor adhering to the surface are strongly decomposed and removed. . Even when the light energy is natural light or weak light from a fluorescent lamp (level of 1 milliwatt / cm 2 or less), it is possible to sufficiently decompose dirt, odor, and the like. Moreover, an antibacterial action can be exerted by an oxidation reaction.
例えば、特許文献1には、食器の内外面に酸化チタンの薄膜を形成し、その薄膜に照明灯や太陽光などの自然光を照射させればその光エネルギーを得て酸化チタンの薄膜から活性酸素が発生し、この活性酸素の働きで殺菌防菌防黴の作用が発生することが記載されている。 For example, in Patent Document 1, a thin film of titanium oxide is formed on the inner and outer surfaces of tableware, and if the thin film is irradiated with natural light such as a lamp or sunlight, the light energy is obtained and active oxygen is obtained from the thin film of titanium oxide. It is described that the action of the active oxygen causes the action of bactericidal and antifungal action.
また、引用文献２に、表面に釉薬層を形成した陶磁器製の食器について、前記釉薬層に光触媒粒子からなる表面層または光触媒粒子を含む表面層が形成され、この表面層が、その一部が釉薬層に入り込むように保持されている食器が記載されている。
Moreover, in the cited
一般に、陶磁製食器は、原材料の陶土あるいは磁土の処理工程、食器の形にする成形工程、成型品の乾燥、素焼工程を経た後に釉薬を塗布して施釉され、さらに本焼を行って製造されている。 In general, ceramic tableware is manufactured by applying a glaze after passing through the process of processing the raw clay or porcelain of the raw material, the forming process to form tableware, drying the molded product, and unglazing, and then performing the main baking. ing.
しかしながら、前記特許文献２に記載された食器では、本焼をした後に、釉薬層の表面にさらに光触媒を形成する工程が必要となる。そのため、工程が増えるだけでなく手間がかかるという問題がある。
However, the tableware described in
そこで、本考案は、酸化チタンをコーティングしないで手間を掛けずに製造可能な光触媒作用を有する陶磁製食器を提供するものである。 Therefore, the present invention provides a ceramic tableware having a photocatalytic action that can be manufactured without any effort without coating with titanium oxide.
本考案は、素焼きされた食器の形状をした陶磁製の成型品の表面に光触媒作用を有する酸化チタンを含む釉薬が施釉されて焼成により釉薬層が形成されていることを特徴とする陶磁製食器である。 The present invention is a ceramic tableware characterized in that a glaze containing titanium oxide having a photocatalytic action is applied to the surface of a ceramic molded product in the shape of unglazed tableware and a glaze layer is formed by baking. It is.
本考案による陶磁製食器は、釉薬に酸化チタンを添加混合し、成型品に施釉して焼成するので、釉薬層の表面にさらに酸化チタンをコーティングする工程を省くことにより手間を掛けずに製造することが可能となる。 The ceramic tableware according to the present invention is manufactured without adding time and effort by further coating the surface of the glaze layer by adding titanium oxide to the glaze, glazing and baking the molded product. It becomes possible.
陶磁製食器としては、茶碗、大皿、小皿、茶碗、汁椀、どんぶり等を挙げることができる。本考案の陶磁製食器は、図1に示すように、素焼陶磁器１の表面に酸化チタンを含有する釉薬２が施釉されて焼成により釉薬層が形成されている。 Examples of ceramic tableware include tea bowls, platters, small dishes, tea bowls, soup bowls, and bowls. As shown in FIG. 1, the ceramic tableware of the present invention has a glaze layer containing titanium oxide applied to the surface of an unglazed ceramic pottery 1, and a glaze layer is formed by firing.
素焼陶磁器は、従来の陶磁器の製造方法と同じく、原材料の陶土あるいは磁土の処理工程、食器の形に成形する成形工程、成型品を乾燥する乾燥工程、素焼工程を経た後、成形品を素焼して製造される。 Unglazed porcelain is the same as the conventional method for producing ceramics. After passing through the processing process of the raw material clay or porcelain, the molding process of forming into tableware, the drying process of drying the molded product, and the uncooking process, the molded product is unbaked. Manufactured.
通常の陶磁製食器の製造では、成型品の素焼後に釉薬が塗布されて施釉され、さらに本焼が行われるが、本考案では、施釉には酸化チタンを添加混合した釉薬を使用する点で従来の陶磁製食器と異なる。 In the production of ordinary ceramic tableware, glaze is applied and glazed after the mold is baked, and then main firing is performed. In the present invention, glaze mixed with titanium oxide is used for glazing. Different from ceramic tableware.
本考案では、使用する釉薬は限定されるものではなく、従来から使用されている灰釉、長石釉、石灰釉等の釉薬を使用することができ、例えば、強熱減量（ｌｇ．ｌｏｓｓ）、二酸化けい素（ＳｉＯ２）、酸化アルミニウム（Ａｌ２Ｏ３）、 酸化第二鉄（Ｆｅ２Ｏ３）、二酸化チタン（ＴｉＯ２）、酸化カルシウム（ＣａＯ）、酸化マグネシウム（ＭｇＯ）、酸化ナトリウム（Ｎａ２Ｏ）、酸化カリウム（Ｋ２Ｏ）を含有する石灰釉などを使用することができる。 In the present invention, the glaze to be used is not limited, and conventionally used glazes such as ash glaze, feldspar glaze and lime glaze can be used, for example, ignition loss (lg.loss), dioxide dioxide Silicon (SiO 2 ), aluminum oxide (Al 2 O 3 ), ferric oxide (Fe 2 O 3 ), titanium dioxide (TiO 2 ), calcium oxide (CaO), magnesium oxide (MgO), sodium oxide (Na 2 O), lime cake containing potassium oxide (K 2 O), or the like can be used.
釉薬に添加混合する酸化チタンは、粉末あるいは粒子の状態で混合する。混合割合は、質量比で釉薬に対して０．５〜３０％にする。 Titanium oxide added to the glaze is mixed in the form of powder or particles. The mixing ratio is 0.5 to 30% with respect to the glaze by mass ratio.
<試験例＞
使用する釉薬の組成は次のとおりである。
強熱減量（ｌｇ．ｌｏｓｓ）、二酸化けい素（Ｓｉｏ２）、酸化アルミニウム（Ａｌ２Ｏ３）、 酸化第二鉄（Ｆｅ２Ｏ３）、二酸化チタン（ＴｉＯ２）、酸化カルシウム（ＣａＯ）、酸化マグネシウム（ＭｇＯ）、酸化ナトリウム（Ｎａ２Ｏ）、酸化カリウム（Ｋ２Ｏ）を含有する石灰釉を用いる。
<Test example>
The composition of the glaze used is as follows.
Loss on ignition (lg.loss), silicon dioxide (Sio 2 ), aluminum oxide (Al 2 O 3 ), ferric oxide (Fe 2 O 3 ), titanium dioxide (TiO 2 ), calcium oxide (CaO), Lime cake containing magnesium oxide (MgO), sodium oxide (Na 2 O), and potassium oxide (K 2 O) is used.
次いで、釉薬に、酸化チタン粉末を釉薬に対して０．５質量％、１．０質量％、２．０質量％、５．０質量％、１０質量％、２０質量％、３０質量％の範囲で添加混合した。 Next, in the glaze, the titanium oxide powder is in the range of 0.5 mass%, 1.0 mass%, 2.0 mass%, 5.0 mass%, 10 mass%, 20 mass%, 30 mass% with respect to the glaze. And mixed.
得られた酸化チタン粉末を含有する釉薬を塗布した後、１２９２℃で焼成して釉薬層を形成したサンプルを用意した。 After applying the glaze containing the obtained titanium oxide powder, a sample was prepared by firing at 1292 ° C. to form a glaze layer.
各サンプルに大腸菌懸濁液を滴下し、紫外線ランプで紫外線を紫外線強度６３０μ／ｃｍ２で６時間照射して光触媒反応をさせたのち、サンプルから洗浄水を用いて培地へ洗い出し、３日間培養して光触媒の抗菌試験を行った。 E. coli suspension was dropped onto each sample, and after UV photoirradiation was performed for 6 hours with an ultraviolet lamp at an ultraviolet intensity of 630 μ / cm 2 , the sample was washed from the sample into the medium using washing water and cultured for 3 days. An antibacterial test of the photocatalyst was conducted.
試験の結果、各サンプルとも抗菌活性がみられた。 As a result of the test, each sample showed antibacterial activity.
１：素焼陶磁器
２：酸化チタン粉末を含有する釉薬
1: Unglazed ceramics 2: Glaze containing titanium oxide powder
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012005403U JP3179738U (en) | 2012-09-04 | 2012-09-04 | Ceramic tableware with photocatalytic action |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012005403U JP3179738U (en) | 2012-09-04 | 2012-09-04 | Ceramic tableware with photocatalytic action |
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| Publication Number | Publication Date |
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| JP3179738U true JP3179738U (en) | 2012-11-15 |
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| JP2012005403U Expired - Lifetime JP3179738U (en) | 2012-09-04 | 2012-09-04 | Ceramic tableware with photocatalytic action |
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| Country | Link |
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| JP (1) | JP3179738U (en) |
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2012
- 2012-09-04 JP JP2012005403U patent/JP3179738U/en not_active Expired - Lifetime
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