JPH1059763A - Manufacture of functional biscuit-fired product - Google Patents
Manufacture of functional biscuit-fired productInfo
- Publication number
- JPH1059763A JPH1059763A JP8231402A JP23140296A JPH1059763A JP H1059763 A JPH1059763 A JP H1059763A JP 8231402 A JP8231402 A JP 8231402A JP 23140296 A JP23140296 A JP 23140296A JP H1059763 A JPH1059763 A JP H1059763A
- Authority
- JP
- Japan
- Prior art keywords
- inorganic particles
- functional
- green body
- formed body
- composition
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000010954 inorganic particle Substances 0.000 claims abstract description 48
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 14
- 230000001699 photocatalysis Effects 0.000 claims description 12
- 244000005700 microbiome Species 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 claims 1
- 238000005245 sintering Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 12
- 239000004575 stone Substances 0.000 abstract description 5
- 239000004927 clay Substances 0.000 abstract description 4
- 239000010459 dolomite Substances 0.000 abstract description 4
- 229910000514 dolomite Inorganic materials 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000005995 Aluminium silicate Substances 0.000 abstract description 2
- 235000012211 aluminium silicate Nutrition 0.000 abstract description 2
- 239000010433 feldspar Substances 0.000 abstract description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010445 mica Substances 0.000 abstract description 2
- 229910052618 mica group Inorganic materials 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 239000000454 talc Substances 0.000 abstract description 2
- 229910052623 talc Inorganic materials 0.000 abstract description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract description 2
- 239000010456 wollastonite Substances 0.000 abstract description 2
- 229910052882 wollastonite Inorganic materials 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 230000000844 anti-bacterial effect Effects 0.000 description 21
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 229910010413 TiO 2 Inorganic materials 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 11
- 230000001590 oxidative effect Effects 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000005484 gravity Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000011941 photocatalyst Substances 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000001877 deodorizing effect Effects 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 101100258086 Postia placenta (strain ATCC 44394 / Madison 698-R) STS-01 gene Proteins 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- -1 silver ions Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004438 BET method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Chemical group 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- NUHCTOLBWMJMLX-UHFFFAOYSA-N bromothymol blue Chemical compound BrC1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C(=C(Br)C(O)=C(C(C)C)C=2)C)=C1C NUHCTOLBWMJMLX-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 238000007540 photo-reduction reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Chemical group 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 1
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Catalysts (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、脱臭、抗菌等の清
浄化機能を有する機能性素焼製品を製造する方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a functional unbaked product having a deodorizing and antibacterial cleaning function.
【０００２】[0002]
【従来の技術】脱臭、抗菌等の観点からの環境改善は、
現在では、家庭、職場、工場、学校、病院、公共の建
物、交通機関をはじめとするあらゆる場に浸透してい
る。2. Description of the Related Art Environmental improvement from the viewpoint of deodorization and antibacterial
Today, it has permeated everywhere, including homes, workplaces, factories, schools, hospitals, public buildings, and transportation.
【０００３】脱臭剤または抗菌剤は有機系のものと無機
系のものとに大別することができ、いずれも所期の効果
を発揮するが、安全性および持続性を考えると、無機系
の方が伸びが大きい傾向にある。[0003] Deodorants or antibacterial agents can be broadly classified into organic ones and inorganic ones, and both exhibit the desired effects. There is a tendency that growth is larger.
【０００４】無機系の脱臭剤または抗菌剤の応用例の一
つは、銀等の抗菌性金属またはそのイオンを担持したゼ
オライト、ガラス、シリカアルミナ等の無機質粒子を、
成形物に内添したり、釉薬に添加して陶器に施釉するも
のである。[0004] One of the applications of inorganic deodorants or antibacterial agents is to use inorganic particles such as zeolite, glass, silica-alumina, etc. carrying an antibacterial metal such as silver or ions thereof.
It is added internally to molded products or added to glaze to glaze pottery.
【０００５】また最近では、光触媒作用を有する酸化チ
タン等の無機質粒子を、タイルや衛生陶器に吹き付けて
焼成することにより、厚み１μm 前後のコーティング膜
を形成させて、半永久的な抗菌性を付与することも報告
されている。たとえば、「日経ビジネス、１９９４年３
月２１日号」の６０〜６１頁、「トリガー、９４年５月
号」の８４〜８５頁を参照。Recently, inorganic particles such as titanium oxide having a photocatalytic action are sprayed on tiles or sanitary ware and fired to form a coating film having a thickness of about 1 μm, thereby imparting semi-permanent antibacterial properties. It has also been reported. For example, "Nikkei Business, March 1994
Pp. 60-61 of the March 21st issue and pages 84-85 of the "Trigger, May 1994 issue".
【０００６】[0006]
【発明が解決しようとする課題】銀等の抗菌性金属また
はそのイオンを担持した無機質粒子を、成形物に内添し
たり、釉薬に添加して陶器に施釉する方法は、微量の金
属イオン（殊に銀イオン）の流出により抗菌作用を発揮
させるものであるため、その機能は使用条件に左右さ
れ、また抗菌力が発揮されるまでに時間がかかるという
問題点がある。A method of internally adding an antibacterial metal such as silver or an inorganic particle carrying the ion thereof to a molded product or adding the same to a glaze and glazing a pottery with a trace amount of a metal ion ( Since the antibacterial effect is exerted by the outflow of silver ions (especially silver ions), its function is affected by the conditions of use, and there is a problem that it takes time until the antibacterial effect is exerted.
【０００７】光触媒作用を有する無機質粒子は、タイル
や衛生陶器に焼き付けコーティングする使い方をされは
じめているが、期待するほどの脱臭、抗菌効果が奏され
ない。これは、光触媒作用を有する無機質粒子の表面積
が焼き付けにより減少すること、臭気成分や微生物との
接触時間が余りに短いためそれらを分解しにくいことな
どが理由として考えられる。[0007] Inorganic particles having a photocatalytic action are beginning to be used for baking and coating on tiles and sanitary ware, but they do not exhibit the expected deodorizing and antibacterial effects. This is considered to be because the surface area of the inorganic particles having a photocatalytic action is reduced by baking, and the contact time with the odor component and the microorganism is too short to be easily decomposed.
【０００８】本発明は、このような背景下において、清
浄化機能を有する機能性無機質粒子を素焼体の構成成分
とすることにより、清浄化作用が確実かつ迅速に発揮さ
れるようにした機能性素焼製品の製造法を提供すること
を目的とするものである。[0008] Under such a background, the present invention provides a functional material in which the cleaning action is surely and promptly performed by using functional inorganic particles having a cleaning function as constituents of a green body. It is an object of the present invention to provide a method for producing unglazed products.
【０００９】[0009]
【課題を解決するための手段】本発明の機能性素焼製品
の製造法は、清浄化機能を有する機能性無機質粒子(x)
と素地原料(y) との組成物を、成形、乾燥、焼成して素
焼体(A) となすことを特徴とするものである。Means for Solving the Problems The method for producing a functional unbaked product of the present invention is characterized in that the functional inorganic particles (x) having a cleaning function are provided.
And forming a green body (A) by molding, drying, and firing the composition of the base material (y).
【００１０】この場合、素焼体(A) を、必要な強度を有
する耐熱性基体(B) の表面上に形成させることもでき
る。In this case, the unfired body (A) can be formed on the surface of the heat-resistant substrate (B) having the required strength.
【００１１】[0011]
【発明の実施の形態】以下本発明を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【００１２】〈機能性無機質粒子(x) 〉清浄化機能を有
する機能性無機質粒子(x) としては、臭気成分、有害成
分、有機物または微生物を無害化する機能を有する無機
質粒子があげられる。このような機能性無機質粒子(x)
としては、光触媒作用を有する無機質粒子、抗菌性金属
またはそのイオンを担持した無機質粒子、または光還元
メッキ無機質粒子があげられ、これらの中では光触媒作
用を有する無機質粒子が特に重要である。<Functional Inorganic Particle (x)> Examples of the functional inorganic particle (x) having a cleaning function include inorganic particles having a function of detoxifying odor components, harmful components, organic substances or microorganisms. Such functional inorganic particles (x)
Examples thereof include inorganic particles having a photocatalytic action, inorganic particles carrying an antibacterial metal or its ion, and inorganic particles having undergone photoreduction plating. Of these, inorganic particles having a photocatalytic action are particularly important.
【００１３】上記のうち光触媒作用を有する無機質粒子
の例は、Ｘ線粒径がたとえば１００nm以下というような
超微細の酸化チタンであり、その表面を金属（金、銀、
銅、白金、亜鉛、ケイ素、鉄等）または金属化合物（酸
化亜鉛、酸化ケイ素等）で修飾したものも好適に用いる
ことができる。An example of the inorganic particles having a photocatalytic action is ultrafine titanium oxide having an X-ray particle size of, for example, 100 nm or less, and the surface thereof is formed of a metal (gold, silver,
Those modified with copper, platinum, zinc, silicon, iron, etc. or metal compounds (zinc oxide, silicon oxide, etc.) can also be suitably used.
【００１４】抗菌性金属またはそのイオンを担持した無
機質粒子の例は、銀、銅、亜鉛等の抗菌性金属またはそ
のイオンを担持したゼオライト、ガラス、シリカアルミ
ナ、アパタイト、リン酸ジルコニウム、シリカゲル、ケ
イ酸カルシウム等の無機質粒子である。Examples of the inorganic particles carrying the antibacterial metal or its ion include zeolite, glass, silica alumina, apatite, zirconium phosphate, silica gel, silica, and the like, which carry the antibacterial metal such as silver, copper and zinc or its ion. These are inorganic particles such as calcium acid.
【００１５】光還元メッキ無機質粒子とは、光触媒層の
上にさらに銀や銅等の金属イオンをコートして、還元固
定化したものである。The photoreduction-plated inorganic particles are obtained by coating a photocatalyst layer with a metal ion such as silver or copper and reducing and immobilizing the metal ions.
【００１６】〈素地原料(y) 〉素地原料(y) としては、
カオリン、粘土、雲母、陶石、蝋石、長石、珪石・珪
砂、炭酸石灰、ドロマイト、珪灰石、滑石、骨灰などを
適宜の割合で組み合わせたものが用いられ、たとえば、
陶石、白雲石、木節粘土などを適宜の割合で組み合わせ
たものが用いることできる。<Base material (y)> As the base material (y),
Kaolin, clay, mica, pottery stone, rubble, feldspar, quartzite / silica sand, carbonated lime, dolomite, wollastonite, talc, bone ash, etc. are used in an appropriate ratio, for example,
A combination of pottery stone, dolomite, Kibushi clay and the like at an appropriate ratio can be used.
【００１７】〈素焼体(A) 〉本発明においては、上記の
機能性無機質粒子(x) と素地原料(y) との組成物を、成
形、乾燥、焼成して素焼体(A) となす。素焼体(A) の形
状としては、板体、筒体、棒体、球体、各種物品形状、
動物や人形の形状、不規則形状をはじめとする任意の形
状があげられ、破砕品であってもよい。組成物の調製、
混合、成形、乾燥の条件は、通常の素焼の製造条件を採
用することができる。<Green body (A)> In the present invention, the composition of the above-mentioned functional inorganic particles (x) and the raw material (y) is formed, dried and fired to form a green body (A). . Examples of the shape of the unfired body (A) include a plate, a cylinder, a rod, a sphere, various article shapes,
Any shape including the shape of an animal or a doll or an irregular shape may be mentioned, and a crushed product may be used. Preparation of the composition,
As for the conditions of mixing, molding, and drying, production conditions for ordinary unglazing can be adopted.
【００１８】素焼体(A) への焼成温度は、広い範囲から
選択されるものの、比較的低温領域の４００〜９５０℃
であることが好ましい。より好ましい温度は４２０〜８
００℃、さらに好ましい温度は４３０〜７５０℃、特に
好ましい温度は４４０〜７００℃、最も好ましい温度は
４５０〜６５０℃である。焼成温度が余りに低いときは
得られる素焼体(A) が脆くなり、焼成温度が余りに高い
ときには脱臭、抗菌等の清浄化機能が充分には奏されな
くなる傾向がある。ちなみに、一般の素焼製造時の焼成
温度は、たとえば「窯業工学ハンドブック、窯業協会
編、発行所：技報堂出版株式会社、２版７刷発行日：１
９８０年２月１日」の１１７５頁によれば、食器用磁器
では７００〜９００℃、硬質磁器では１１５０〜１２５
０℃とされている。The firing temperature for the green body (A) is selected from a wide range, but is in a relatively low temperature range of 400 to 950 ° C.
It is preferred that More preferred temperature is 420-8
00 ° C, more preferred temperature is 430 to 750 ° C, particularly preferred temperature is 440 to 700 ° C, most preferred temperature is 450 to 650 ° C. When the firing temperature is too low, the green body (A) obtained tends to be brittle, and when the firing temperature is too high, the deodorizing and antibacterial and other cleaning functions tend not to be sufficiently exhibited. Incidentally, the firing temperature at the time of general unglazing production is, for example, as described in “Ceramics Engineering Handbook, edited by the Ceramics Association, published by: Gihodo Publishing Co., Ltd., 2nd edition, 7th printing.
According to page 1175 of "February 1, 980", tableware porcelain has a temperature of 700 to 900 ° C, and hard porcelain has a value of 1150 to 125 ° C.
0 ° C.
【００１９】素焼体(A) に占める機能性無機質粒子(x)
由来の酸化物の割合は、１〜５０重量％、殊に２〜４０
重量％、なかんずく３〜３０重量％であることが好まし
い。その割合が余りに少ないときは脱臭または抗菌機能
等の清浄化機能が不足し、一方その割合が余りに多いと
きには、得られる素焼体(A) が脆くなるなど機械的強度
が損なわれる上、コスト的に不利になる。Functional inorganic particles (x) in the green body (A)
The proportion of oxides derived from 1 to 50% by weight, in particular 2 to 40% by weight
%, Preferably 3 to 30% by weight. When the ratio is too small, the cleaning function such as deodorization or antibacterial function is insufficient.On the other hand, when the ratio is too large, the obtained green body (A) becomes brittle and the mechanical strength is impaired. Be disadvantaged.
【００２０】得られた素焼体(A) は、それ単独で、ある
いは必要に応じ他の材料に組み込んだり他の材料で補強
したりして用いることもできる。The obtained unfired body (A) can be used alone or, if necessary, incorporated in another material or reinforced with another material.
【００２１】〈耐熱性基体(B) 〉上述の焼成温度のうち
低目の焼成温度条件を採用したときは、用途や使い方に
よっては、素焼体(A) の機械的強度や耐水性が不足する
ことがある。そして素焼体(A) は主としてその表面側の
領域が脱臭、抗菌等の清浄化作用に大きく貢献すること
になるが、焼成温度の高低の如何にかかわらず、素焼体
(A) が厚手であるときにその全体を高価な機能性無機質
粒子(x) 入りの材料で構成することはそれだけコストが
高くなることになる。<Heat-Resistant Substrate (B)> When the lower firing temperature condition among the above-mentioned firing temperatures is adopted, the mechanical strength and water resistance of the unfired body (A) are insufficient depending on the use and usage. Sometimes. The unfired body (A) mainly contributes greatly to the deodorizing and antibacterial cleaning effects in the surface region, but the unfired body does not matter whether the firing temperature is high or low.
When (A) is thick, if the whole is made of a material containing expensive functional inorganic particles (x), the cost will increase accordingly.
【００２２】そこで目的物の形状や用途によっては、次
のような工夫を行うことが望ましい。すなわち、必要な
強度を有する耐熱性基体(B) の表面の少なくとも一部
に、上記の機能性無機質粒子(x) と素地原料(y) との組
成物を被覆し、乾燥、焼成して素焼体(A) となすことに
より、耐熱性基体(B) の表面に素焼体(A) が被覆された
複合体を得るのである。このときの素焼体(A) 形成のた
めの焼成温度などの条件は上記と同様である。なお組成
物の被覆の前に耐熱性基体(B) 上に密着性向上のために
下塗りを行うこともできる。Therefore, it is desirable to make the following contrivances depending on the shape and use of the object. That is, at least a part of the surface of the heat-resistant substrate (B) having the required strength is coated with the composition of the above-mentioned functional inorganic particles (x) and the raw material (y), and dried and fired to be sintered. By forming the body (A), a composite in which the surface of the heat-resistant substrate (B) is coated with the unfired body (A) is obtained. Conditions such as the firing temperature for forming the unfired body (A) at this time are the same as described above. Before coating with the composition, a primer may be applied on the heat-resistant substrate (B) to improve adhesion.
【００２３】ここで耐熱性基体(B) としては、セラミッ
クス、金属、炭素材料をはじめ、必要な機械的強度と必
要な耐熱性を有するものであれば、種々のものが用いら
れる。耐熱性基体(B) のうち好ましいものの一つは、そ
の上に形成する素焼体(A) との密着性が良好であると共
に熱膨張挙動も類似しかつコスト的にも有利である必要
な機械的強度を有する通常の素焼体である。As the heat-resistant substrate (B), various materials such as ceramics, metals and carbon materials can be used as long as they have the required mechanical strength and the required heat resistance. One of the preferable heat-resistant substrates (B) is a machine which is required to have good adhesion to the unfired body (A) formed thereon, have similar thermal expansion behavior, and be advantageous in cost. It is a normal unfired body having a proper strength.
【００２４】〈用途〉上に述べた素焼体(A) からなる機
能性素焼製品は、水中や気体中の臭気成分、有害成分、
有機物（老廃物、汚染物質、難分解物等）、微生物など
を無害化するための部材として有用である。具体的に
は、貯水槽、浴槽、浴室、池、噴水、プール、観賞魚水
槽、防火槽、排水路などにおいて用いる部材；フィルタ
ー、エアコンディショナー、空気清浄機などにおいて用
いる部材；仕切り、壁材、天井材、樋などの建材用途に
おいて用いる部材；脱臭器、トイレタリー用品、枕また
は枕詰物、香炉、灰皿、筐体、換気部材、フードなど室
内や車内の置物や装置品として用いる部材；食品等のシ
ョーケース内や冷蔵庫内に置く消臭または鮮度保持のた
めの部材；廃棄物置場で用いる部材；などが例示され
る。使用分野は、家庭用、職場用、工場用、産業用、公
共用、病院用、農・園芸用、畜・水産用などの広範囲に
わたる。<Applications> The functional unbaked product composed of the unbaked body (A) described above is used for odor components, harmful components in water or gas,
It is useful as a member for detoxifying organic substances (waste products, pollutants, hardly decomposed products, etc.), microorganisms and the like. Specifically, members used in water tanks, bathtubs, bathrooms, ponds, fountains, pools, ornamental fish tanks, fire prevention tanks, drainage channels, etc .; members used in filters, air conditioners, air purifiers, etc .; partitions, wall materials, Materials used in building materials such as ceiling materials and gutters; Deodorizers, toiletries, pillows or pillow stuffs, incense burners, ashtrays, housings, ventilation members, hoods, etc. For example, a member placed in a showcase or a refrigerator for deodorizing or maintaining freshness; a member used in a waste storage area; The fields of use cover a wide range such as home use, workplace use, factory use, industrial use, public use, hospital use, agricultural and horticultural use, livestock and fishery use.
【００２５】[0025]
【実施例】次に実施例をあげて本発明をさらに説明す
る。The present invention will be further described with reference to the following examples.
【００２６】〈機能性素焼製品の製造〉 実施例１ 清浄化機能を有する機能性無機質粒子(x) の一例である
光触媒作用を有する無機質粒子として、石原産業株式会
社製の光触媒用酸化チタン「ＳＴ−０１」(x1)を準備し
た。「ＳＴ−０１」は、カタログの記載によれば、結晶
形はアナタース、形状は粉体、ＴｉＯ2 含量（１１０℃
乾燥品）は９５重量％、Ｘ線粒径は７nm、比表面積（簡
易ＢＥＴ法）は３２０m2/gである。<Production of Functional Unfired Product> Example 1 As an example of a functional inorganic particle (x) having a cleaning function, titanium oxide for photocatalyst "ST" manufactured by Ishihara Sangyo Co., Ltd. -01 "was prepared (x 1). According to the description in the catalog, “ST-01” has a crystal form of anatase, a powder form, and a TiO 2 content (110 ° C.).
(Dry product) is 95% by weight, the X-ray particle size is 7 nm, and the specific surface area (simple BET method) is 320 m 2 / g.
【００２７】素地原料(y) の一例としての陶石、白雲石
および木節粘土などを原料とする素地原料(y1)の混合物
に上記の光触媒用酸化チタン「ＳＴ−０１」(x1)を配合
し、水でよく練ってから、板体形状に成形、乾燥し、つ
いで酸化雰囲気下に温度５００℃で焼成を行った。The pottery stone as an example of a matrix material (y), dolomite and matrix material (y 1) above photocatalyst titanium oxide "ST-01" to the mixture which kibushi clay, etc. as raw materials (x 1) Was kneaded well with water, molded into a plate shape, dried, and then fired at 500 ° C. in an oxidizing atmosphere.
【００２８】これにより、焼成後の寸法が１６mm×８２
mm×３mmの素焼体(A) が得られた。この素焼体(A) は、
Al2O3 、SiO2を主たる成分とし、TiO2の含有量が19.6％
の組成を有するものであった。物理恒数は、見掛け比
重: 2.6 、嵩比重: 1.2 、気孔率: 53％、吸水率: 42
％、強度: 25kg/cm2であった。As a result, the size after firing is 16 mm × 82.
A green body (A) of mm × 3 mm was obtained. This unfired body (A)
Al 2 O 3 and SiO 2 as main components, TiO 2 content is 19.6%
Having the following composition: Physical constants are apparent specific gravity: 2.6, bulk specific gravity: 1.2, porosity: 53%, and water absorption: 42.
%, Strength: 25 kg / cm 2 .
【００２９】この素焼体(A) を水中に２４時間浸漬放置
したところ、もとの形状をそのまま維持していた。ただ
し、この素焼体(A) を煮沸水中に１時間浸漬放置したと
きは崩壊した。When the green body (A) was immersed in water for 24 hours, the original shape was maintained. However, when the green body (A) was immersed in boiling water for 1 hour, it collapsed.
【００３０】実施例２ 焼成温度を６００℃としたほかは実施例１を繰り返し
た。得られた素焼体(A)は、Al2O3 、SiO2を主たる成分
とし、TiO2の含有量が19.6％の組成を有するものであっ
た。物理恒数は、見掛け比重: 2.6 、嵩比重: 1.3 、気
孔率: 51％、吸水率: 39％、強度: 60kg/cm2であった。Example 2 Example 1 was repeated except that the firing temperature was 600 ° C. The obtained unfired body (A) had a composition containing Al 2 O 3 and SiO 2 as main components and a TiO 2 content of 19.6%. Physical constants were apparent specific gravity: 2.6, bulk specific gravity: 1.3, porosity: 51%, water absorption: 39%, and strength: 60 kg / cm 2 .
【００３１】この素焼体(A) を水中に２４時間浸漬放置
したところ、もとの形状をそのまま維持していた。また
この素焼体(A) を煮沸水中に１時間浸漬放置したとこ
ろ、もとの形状をそのまま維持していた。When the green body (A) was immersed in water for 24 hours, the original shape was maintained. When the unfired body (A) was immersed in boiling water for 1 hour, the original shape was maintained.
【００３２】実施例３ 実施例１とは異なる素地原料(y2)の混合物に、実施例１
の光触媒用酸化チタン「ＳＴ−０１」(x1)を配合し、水
でよく練ってから、板体形状に成形、乾燥し、ついで酸
化雰囲気下に温度８００℃で焼成を行った。Example 3 A mixture of the raw material (y 2 ) different from that of Example 1 was added to Example 1
The titanium oxide for photocatalyst “ST-01” (x 1 ) was mixed, kneaded well with water, formed into a plate shape, dried, and then fired at 800 ° C. in an oxidizing atmosphere.
【００３３】これにより、焼成後の寸法が１６mm×８２
mm×７mmの素焼体(A) が得られた。この素焼体(A) は、
Al2O3 、SiO2を主たる成分とし、TiO2の含有量が21.9％
の組成を有するものであった。物理恒数は、見掛け比
重: 2.6 、嵩比重: 1.1 、気孔率: 54％、吸水率: 45
％、強度: 15kg/cm2であった。As a result, the size after firing is 16 mm × 82.
A green body (A) of mm × 7 mm was obtained. This unfired body (A)
Al 2 O 3 , SiO 2 as main components, TiO 2 content 21.9%
Having the following composition: Physical constants are apparent specific gravity: 2.6, bulk specific gravity: 1.1, porosity: 54%, water absorption: 45
%, Strength: 15 kg / cm 2 .
【００３４】この素焼体(A) を水中に２４時間浸漬放置
したところ、もとの形状をほぼ維持していた。またこの
素焼体(A) を煮沸水中に１時間浸漬放置したところ、も
との形状をほぼ維持していた。When the green body (A) was immersed in water for 24 hours, the original shape was almost maintained. When the unfired body (A) was immersed in boiling water for 1 hour, the original shape was almost maintained.
【００３５】実施例４ 清浄化機能を有する機能性無機質粒子(x) の一例である
光触媒作用を有する無機質粒子として、石原産業株式会
社製の光触媒用酸化チタン「ＳＴ−３１」(x2)を準備し
た。「ＳＴ−３１」は、カタログの記載によれば、結晶
形はアナタース、形状は粉体、ＴｉＯ2 含量（１１０℃
乾燥品）は８１重量％、Ｘ線粒径は７nm、比表面積（簡
易ＢＥＴ法）は２６０m2/gである。この「ＳＴ−３１」
が実施例１で用いた「ＳＴ−０１」に比しＴｉＯ2 含量
が低くなっているのは、その分だけ酸化亜鉛で修飾され
ているためと考えられる。Example 4 Titanium oxide for photocatalyst “ST-31” (x 2 ) manufactured by Ishihara Sangyo Co., Ltd. was used as an inorganic particle having a photocatalytic function as an example of the functional inorganic particles (x) having a cleaning function. Got ready. According to the description in the catalog, “ST-31” has a crystal form of anatase, a powder form, and a TiO 2 content (110 ° C.).
(Dry product) is 81% by weight, the X-ray particle size is 7 nm, and the specific surface area (simple BET method) is 260 m 2 / g. This "ST-31"
The reason why the TiO 2 content is lower than that of “ST-01” used in Example 1 is considered to be that the TiO 2 content was modified by zinc oxide.
【００３６】実施例１と同じ素地原料(y1)の混合物に上
記の光触媒用酸化チタン「ＳＴ−３１」(x2)を配合し、
水でよく練ってから、板体形状に成形、乾燥し、ついで
酸化雰囲気下に温度５００℃で焼成を行った。The same mixture of the raw material (y 1 ) as in Example 1 was mixed with the above-mentioned titanium oxide for photocatalyst “ST-31” (x 2 ).
After well kneading with water, it was formed into a plate shape, dried, and then fired at a temperature of 500 ° C. in an oxidizing atmosphere.
【００３７】これにより、焼成後の寸法が１６mm×８２
mm×３mmの素焼体(A) が得られた。この素焼体(A) は、
Al2O3 、SiO2を主たる成分とし、TiO2の含有量が19.6％
の組成を有するものであった。物理恒数は、実施例１で
得たものと実質的に同一であった。Thus, the size after firing is 16 mm × 82.
A green body (A) of mm × 3 mm was obtained. This unfired body (A)
Al 2 O 3 and SiO 2 as main components, TiO 2 content is 19.6%
Having the following composition: Physical constants were substantially the same as those obtained in Example 1.
【００３８】この素焼体(A) を水中に２４時間浸漬放置
したところ、もとの形状をそのまま維持していた。ただ
し、この素焼体(A) を煮沸水中に１時間浸漬放置したと
きは崩壊した。When the unfired body (A) was immersed in water for 24 hours, the original shape was maintained. However, when the green body (A) was immersed in boiling water for 1 hour, it collapsed.
【００３９】実施例５ 実施例１と同じ素地原料(y1)の混合物を水でよく練って
から、板体形状に成形、乾燥し、ついで酸化雰囲気下に
温度８００℃で焼成を行った。焼成後の寸法は、１６mm
×８２mm×３mmであった。これにより、通常の素焼体に
相当する耐熱性基体(B) が得られた。Example 5 A mixture of the same raw material (y 1 ) as in Example 1 was kneaded well with water, formed into a plate shape, dried, and then fired at 800 ° C. in an oxidizing atmosphere. The size after firing is 16mm
× 82 mm × 3 mm. As a result, a heat-resistant substrate (B) corresponding to a normal green body was obtained.
【００４０】次に、この板体形状の耐熱性基体(B) の全
面に、実施例１と同じ処方（光触媒用酸化チタン「ＳＴ
−０１」(x1)および素地原料(y1)）の組成物を水でよく
練って約２mm厚みに被覆し、ついで酸化雰囲気下に温度
５００℃で焼成を行った。焼成後の寸法は、２０mm×８
６mm×７mmであった。これにより、素焼基体(B) の全面
に素焼体(A) が被覆された複合体が得られた。Next, the same prescription as in Example 1 (titanium oxide for photocatalyst "ST
The composition of “-01” (x 1 ) and the raw material (y 1 )) was kneaded well with water and coated to a thickness of about 2 mm, and then fired at 500 ° C. in an oxidizing atmosphere. The size after firing is 20mm x 8
It was 6 mm x 7 mm. As a result, a composite was obtained in which the unfired body (A) was coated on the entire surface of the unfired substrate (B).
【００４１】この複合体を水中に２４時間浸漬放置した
が、もとの形状をそのまま維持していた。The composite was left immersed in water for 24 hours, but maintained its original shape.
【００４２】比較例１ 清浄化機能を有する機能性無機質粒子(x) の一例である
光触媒作用を有する無機質粒子として、石原産業株式会
社製の光触媒用酸化チタン「ＳＴＳ−０１」(x1') を準
備した。「ＳＴＳ−０１」は、実施例１で用いた「ＳＴ
−０１」(x1)のゾル型に相当するものであり、性状はゾ
ル、ｐＨは 1.5、ＴｉＯ2 濃度は３０重量％、Ｘ線粒径
は７nmである。[0042] As the inorganic particulate substance having photocatalyst activity, which is an example of a functional inorganic particles having a Comparative Example 1 cleaning function (x), Ishihara Sangyo Kaisha Ltd. photocatalytic titanium oxide "STS-01" (x 1 ') Was prepared. “STS-01” is the same as “STS-01” used in Example 1.
-01 "is intended to correspond to a sol type (x 1), properties sol, pH is 1.5, TiO 2 concentration: 30 wt%, X Sentsubu径is 7 nm.
【００４３】大きさが３６mm×３６mm×３mmのタイルの
表側の面に上記の「ＳＴＳ−０１」(x1') のゾルを塗布
し、酸化雰囲気下に温度１２００℃で焼成して、厚み約
２μm のコーティング膜を形成した。The above-mentioned sol of “STS-01” (x 1 ′) was applied to the front surface of a tile having a size of 36 mm × 36 mm × 3 mm, and baked at a temperature of 1200 ° C. in an oxidizing atmosphere. A coating film of 2 μm was formed.
【００４４】〈アンモニア除去試験〉実施例１〜５の機
能性素焼製品（素焼体(A) または複合体）および比較例
１のコーティングタイルを用いて、アンモニアの除去試
験を行った。すなわち、ガラス容器に0.14％濃度のアン
モニア水溶液７０mlを入れ、フェノールフタレインを加
えて着色し、その中に上記のサンプル片各１枚（比較例
１はコーティング膜側を上にして２枚）を入れて密封
し、窓際に置いて日光を照射しながら、経時的にサンプ
リングして、５５０nmにおける吸光度を測定すると共
に、それに基いてアンモニア除去率を算出した。結果を
表１に示す。空試験とあるのはサンプル片を入れなかっ
た場合である。<Ammonia Removal Test> An ammonia removal test was performed using the functional unfired products (unfired body (A) or composite) of Examples 1 to 5 and the coated tile of Comparative Example 1. Specifically, 70 ml of a 0.14% aqueous ammonia solution was placed in a glass container, and phenolphthalein was added for coloring. One of each of the above sample pieces (in Comparative Example 1, two sheets with the coating film side up) was placed therein. The sample was sealed, placed near a window, illuminated with sunlight, sampled with time, measured the absorbance at 550 nm, and calculated the ammonia removal rate based on the absorbance. Table 1 shows the results. The blank test is when no sample piece is placed.
【００４５】[0045]
【表１】 アンモニア除去試験 素焼体 ｘの 焼成 吸光度(abs.)、下段: NH3 除去率 組成 含有量 温度 照射 3hr後 照射 8hr後 照射16hr後 空試験 - - - 0.759 0.740 0.756 （基準） （基準） （基準） 実施例１ x1+y1 19.6% 500℃ 0.159 0.082 0.012 (79.0%) (88.9%) (98.4%) 実施例２ x1+y1 19.6% 600℃ 0.344 0.236 0.067 (54.7%) (68.1%) (91.1%) 実施例３ x1+y2 21.9% 800℃ 0.314 0.254 0.222 (58.6%) (65.7%) (70.6%) 実施例４ x2+y1 19.6% 500℃ 0.111 0.025 0.002 (85.4%) (96.6%) (99.7%) 実施例５ x1+y1 19.6% 500℃ 0.160 0.083 0.011 (78.9%) (88.8%) (98.5%) 比較例１ (x1' coating) 1200℃ 0.594 0.536 0.466 (21.7%) (27.6%) (38.4%) 注1. 組成は、素焼体(A) における機能性無機質粒子(x) と素地原料(y) 。 注2. 焼成温度は、素焼体(A) 製造時の焼成温度（℃）。 注3. 実施例５は、耐熱性基体(B) の表面が素焼体(A) で被覆。 注4. 比較例１は、タイル面に機能性無機質粒子(x) のコーティング膜形成。[Table 1] Ammonia removal test Calcination absorbance (abs.) Of calcined body x , lower: NH 3 removal rate composition Content Temperature Irradiation 3 hrs Irradiation 8 hrs Irradiation 16 hrs Empty test---0.759 0.740 0.756 (reference) (reference) (Reference) Example 1 x 1 + y 1 19.6% 500 ° C 0.159 0.082 0.012 (79.0%) (88.9%) (98.4%) Example 2 x 1 + y 1 19.6% 600 ° C 0.344 0.236 0.067 (54.7%) (68.1%) (91.1%) Example 3 x 1 + y 2 21.9% 800 ° C 0.314 0.254 0.222 (58.6%) (65.7%) (70.6%) Example 4 x 2 + y 1 19.6% 500 ° C 0.111 0.025 0.002 (85.4%) (96.6%) (99.7%) example 5 x 1 + y 1 19.6% 500 ℃ 0.160 0.083 0.011 (78.9%) (88.8%) (98.5%) Comparative example 1 (x 1 'coating) 1200 ℃ 0.594 0.536 0.466 (21.7%) (27.6%) (38.4%) Note 1. The composition is the functional inorganic particles (x) and the raw material (y) in the green body (A). Note 2. The firing temperature is the firing temperature (° C) at the time of production of the green body (A). Note 3. In Example 5, the surface of the heat-resistant substrate (B) was covered with the unfired body (A). Note 4. In Comparative Example 1, a coating film of functional inorganic particles (x) was formed on the tile surface.
【００４６】〈機能性素焼製品の製造〉 実施例６ 実施例１，３とは異なる素地原料(y3)の混合物に、実施
例１の「ＳＴ−０１」(x1)を配合し、水でよく練ってか
ら、板体形状に成形、乾燥し、ついで酸化雰囲気下に温
度５００℃で焼成を行った。<Manufacture of Functional Unbaked Product> Example 6 A mixture of the raw material (y 3 ) different from those of Examples 1 and 3 was mixed with “ST-01” (x 1 ) of Example 1 and mixed with water. Then, the mixture was molded into a plate shape, dried, and then fired at a temperature of 500 ° C. in an oxidizing atmosphere.
【００４７】これにより、焼成後の寸法が１６mm×８２
mm×４mmの素焼体(A) が得られた。この素焼体(A) は、
Al2O3 、SiO2を主たる成分とし、TiO2の含有量が 4.9％
の組成を有するものであった。物理恒数は、見掛け比
重: 2.5 、嵩比重: 1.3 、気孔率: 46％、吸水率: 34
％、強度: 55kg/cm2であった。Thus, the size after firing is 16 mm × 82.
A green body (A) of mm × 4 mm was obtained. This unfired body (A)
Al 2 O 3 and SiO 2 as main components, TiO 2 content is 4.9%
Having the following composition: Physical constants: apparent specific gravity: 2.5, bulk specific gravity: 1.3, porosity: 46%, water absorption: 34
%, Strength: 55 kg / cm 2 .
【００４８】この素焼体(A) を水中に２４時間浸漬放置
したところ、もとの形状をそのまま維持していた。ただ
し、この素焼体(A) を煮沸水中に１時間浸漬放置したと
きは崩壊した。When the green body (A) was immersed in water for 24 hours, the original shape was maintained. However, when the green body (A) was immersed in boiling water for 1 hour, it collapsed.
【００４９】〈臭気成分の除去試験、抗菌試験〉上記素
焼体(A) を用いて、アンモニア（ＮＨ3 ）、トリメチル
アミン（ＴＭＡ）、酢酸（ＣＨ3 ＣＯＯＨ）の除去試験
と、抗菌試験とを行った。<Odor component removal test and antibacterial test> Using the unglazed body (A), an ammonia (NH 3 ), trimethylamine (TMA), acetic acid (CH 3 COOH) removal test and an antibacterial test were conducted. Was.
【００５０】臭気成分の除去試験は、それぞれガラス容
器に、0.14％濃度のアンモニア水溶液６０ml、0.15％濃
度のトリメチルアミン水溶液、 0.1％濃度の酢酸水溶液
を入れ、試薬（アンモニア水溶液、トリメチルアミン水
溶液はフェノールフタレイン、酢酸水溶液はブロムチモ
ールブルー）で試料液を着色後、その中に上記のサンプ
ル片１枚を入れて密封し、窓際に置いて日光を８時間照
射し、５５０nm（酢酸の場合は４００nm）における吸光
度を測定すると共に、それに基いて臭気成分の除去率を
算出した。In the test for removing odor components, 60 ml of 0.14% aqueous ammonia solution, 0.15% aqueous trimethylamine solution and 0.1% aqueous acetic acid solution were placed in glass containers, and reagents (aqueous ammonia solution and aqueous trimethylamine solution were phenolphthalein). After coloring the sample solution with bromthymol blue (acetic acid aqueous solution), put one of the above sample pieces into the sample solution, seal it, place it by the window, and irradiate it with sunlight for 8 hours, and measure at 550 nm (400 nm for acetic acid). The absorbance was measured, and the odor component removal rate was calculated based on the measured absorbance.
【００５１】抗菌試験は、市販培地 0.1重量％を含む水
（自然落下菌を含む）４０mlに上記のサンプル片１枚を
入れて密封し、室内自然光下に静置した。菌の繁殖は、
２日後の透明度を６００nmの透過率を測定することによ
り判定した。In the antibacterial test, one of the above sample pieces was put in 40 ml of water (including spontaneously falling bacteria) containing 0.1% by weight of a commercially available medium, sealed, and allowed to stand still under room natural light. The propagation of the fungus
Two days later, the transparency was determined by measuring the transmittance at 600 nm.
【００５２】結果を表２に示す。空試験とあるのはサン
プル片を入れなかった場合である。す。なお表２におけ
る実施例６のデータは、実施例４の「ＳＴ−３１」(x2)
よりも効果の小さい実施例１の「ＳＴ−０１」(x1)を用
い、またTiO2の含有量も 4.9％とかなり少ない条件下で
のデータである。このように表２のデータは不利な条件
下でのものであり、条件を選べば除去率および発育抑制
率はさらに格段に向上する。Table 2 shows the results. The blank test is when no sample piece is placed. You. Note that the data of Example 6 in Table 2 is based on “ST-31” (x 2 ) of Example 4.
These data are obtained under the condition that “ST-01” (x 1 ) of Example 1 having a smaller effect is used and the content of TiO 2 is as small as 4.9%. As described above, the data in Table 2 are obtained under disadvantageous conditions, and if the conditions are selected, the removal rate and the growth suppression rate are further improved.
【００５３】[0053]
【表２】 吸光度(abs.)、( ) 内は除去率または発育抑制率 NH3 TMA CH3COOH 落下菌 空試験 1.428 (基準) 1.680 (基準) 0.156 (基準) 0.068（基準） 実施例６ 0.579 (59.5%) 0.087 (94.8%) 0.028 (82.1%) 0.043 (36.8%) [Table 2] Absorbance (abs.) NH 3 TMA CH 3 COOH falling bacteria Blank test 1.428 (standard) 1.680 (standard) 0.156 (standard) 0.068 (standard) Example 6 0.579 (59.5%) 0.087 (94.8%) 0.028 (82.1%) 0.043 (36.8%)
【００５４】実施例７ 清浄化機能を有する機能性無機質粒子(x) の一例である
抗菌性金属またはそのイオンを担持した無機質粒子とし
て銀ゼオライト微粒子を用い、実施例１と同じ素地原料
(y1)の混合物に、この銀ゼオライト微粒子を配合し、水
でよく練ってから、板体形状に成形、乾燥し、ついで酸
化雰囲気下に温度６００℃で焼成を行った。焼成後の寸
法は、１６mm×８２mm×３mmであった。これにより、目
的とする素焼体(A) が得られた。焼成後の銀ゼオライト
の含有量はほぼ１０％であった。Example 7 The same raw material as in Example 1 was used, in which silver zeolite fine particles were used as an inorganic particle carrying an antibacterial metal or its ion as an example of the functional inorganic particles (x) having a cleaning function.
The silver zeolite particles were mixed with the mixture (y 1 ), kneaded well with water, formed into a plate shape, dried, and then fired at a temperature of 600 ° C. in an oxidizing atmosphere. The dimensions after firing were 16 mm × 82 mm × 3 mm. As a result, the desired unfired body (A) was obtained. The content of the silver zeolite after calcination was almost 10%.
【００５５】この素焼体(A) を水中に２４時間浸漬放置
したが、もとの形状をそのまま維持していた。またこの
素焼体(A) を煮沸水中に１時間浸漬放置したが、もとの
形状をそのまま維持していた。この素焼体(A) につき上
記と同様の抗菌試験を行ったところ、落下菌の発育抑制
率は約６０％であった。The green body (A) was left immersed in water for 24 hours, but the original shape was maintained. The green body (A) was immersed in boiling water for 1 hour, but the original shape was maintained. When the same antibacterial test as described above was conducted on the unfired body (A), the growth inhibitory rate of falling bacteria was about 60%.
【００５６】[0056]
【発明の効果】上記の素焼体(A) からなる機能性素焼製
品は、ポーラスであるので有効表面積が非常に大きく、
気体中や水中の臭気成分、有害成分、有機物、微生物等
を少なくとも一時的に吸着捕捉する作用があり、しかも
その状態で吸着捕捉物は機能性無機質粒子(x) と接触す
るため、臭気成分、有害成分、有機物、微生物等を無害
化する機能が極めて有効に発揮される。また後述のよう
に機能性無機質粒子(x)として光触媒作用を有する無機
質粒子を用い、光照射する場合であっても、素焼体(A)
がポーラスであるので、光がある程度内部にまで入り込
み、清浄化能力の回復が容易である。The functional unfired product comprising the unfired body (A) is porous and has a very large effective surface area.
It has the function of at least temporarily adsorbing and capturing odor components, harmful components, organic substances, microorganisms, etc. in gas and water, and in this state, the adsorption capture product comes into contact with the functional inorganic particles (x), so that the odor component, The function of detoxifying harmful components, organic substances, microorganisms, etc. is extremely effectively exerted. Also, as described below, using inorganic particles having a photocatalytic action as the functional inorganic particles (x), even in the case of light irradiation, the unfired body (A)
Is porous, so that light can penetrate into the interior to some extent, and the cleaning ability can be easily recovered.
【００５７】素焼体(A) が耐熱性基体(B) の表面に被覆
されているときは、その耐熱性基体(B) により機械的強
度が大となって適用可能な用途が拡大し、さらには高価
な機能性無機質粒子(x) の使用量を減ずることができる
ので、コスト的にも有利となる。When the unfired body (A) is coated on the surface of the heat-resistant substrate (B), the heat-resistant substrate (B) increases the mechanical strength, thereby expanding the applicable applications. Can reduce the amount of expensive functional inorganic particles (x) used, which is advantageous in terms of cost.
【００５８】機能性無機質粒子(x) が光触媒作用を有す
る無機質粒子であるときは、それ自体でも酸化作用を奏
するが、脱臭、抗菌等の清浄化に用いながら光照射する
か、脱臭、抗菌の清浄化に用いた後に光照射すれば、清
浄化能力が回復するので、機能性素焼製品を繰り返し再
使用することができる。このときの光は紫外線が最適で
あるが、蛍光灯による光、白色光、太陽光線でも充分の
効果がある。When the functional inorganic particles (x) are inorganic particles having a photocatalytic action, they themselves have an oxidizing effect, but they are irradiated with light while being used for deodorization and antibacterial cleaning, or deodorized and antibacterial. If light irradiation is performed after use for cleaning, the cleaning ability is restored, and the functional unbaked product can be reused repeatedly. The light at this time is most preferably ultraviolet light, but light from fluorescent lamps, white light, and sunlight are also sufficiently effective.
【００５９】そして機能性無機質粒子(x) が光触媒作用
を有する無機質粒子であっても、その作用を発揮する場
が素焼体であるので、機能性無機質粒子(x) の強い酸化
作用により母体が劣化するおそれがない。Even if the functional inorganic particles (x) are inorganic particles having a photocatalytic action, since the place where the effect is exerted is a calcined body, the parent body is formed by the strong oxidizing action of the functional inorganic particles (x). There is no risk of deterioration.
【００６０】このように、本発明の方法により得られる
機能性素焼製品は、清浄化機能を有する機能性無機質粒
子が素焼体の構成成分とされているので、清浄化作用が
確実かつ迅速に発揮される。As described above, in the functional unbaked product obtained by the method of the present invention, since the functional inorganic particles having a cleaning function are included in the unfired body, the cleaning action can be reliably and promptly exhibited. Is done.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 41/85 Ｃ０４Ｂ 35/00 Ｈ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Reference number in the agency FI Technical display location C04B 41/85 C04B 35/00 H
Claims (7)
と素地原料(y) との組成物を、成形、乾燥、焼成して素
焼体(A) となすことを特徴とする機能性素焼製品の製造
法。1. Functional inorganic particles (x) having a cleaning function
A method for producing a functional unbaked product, which comprises forming, drying and calcining a composition of a green body and a raw material (y) into a green body (A).
基体(B) の表面上に形成させることを請求項１記載の製
造法。2. The method according to claim 1, wherein the green body (A) is formed on the surface of a heat-resistant substrate (B) having a required strength.
焼体である請求項２記載の製造法。3. The method according to claim 2, wherein the heat-resistant substrate (B) is a green body having a required strength.
℃である請求項１または２記載の製造法。4. The sintering temperature for the green body (A) is 400 to 950.
The method according to claim 1 or 2, wherein the temperature is ° C.
が、臭気成分、有害成分、有機物または微生物を無害化
する機能を有する無機質粒子である請求項１または２記
載の製造法。5. Functional inorganic particles (x) having a cleaning function
The method according to claim 1 or 2, wherein the inorganic particles have a function of detoxifying odor components, harmful components, organic substances or microorganisms.
が、光触媒作用を有する無機質粒子である請求項１また
は２記載の製造法。6. Functional inorganic particles (x) having a cleaning function
The method according to claim 1 or 2, wherein the particles are inorganic particles having a photocatalytic action.
由来の酸化物の割合が１〜５０重量％である請求項１ま
たは２記載の製造法。7. The functional inorganic particles (x) occupying the green body (A)
3. The production method according to claim 1, wherein the ratio of the oxide derived from the composition is 1 to 50% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8231402A JPH1059763A (en) | 1996-08-12 | 1996-08-12 | Manufacture of functional biscuit-fired product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8231402A JPH1059763A (en) | 1996-08-12 | 1996-08-12 | Manufacture of functional biscuit-fired product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1059763A true JPH1059763A (en) | 1998-03-03 |
Family
ID=16923050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8231402A Withdrawn JPH1059763A (en) | 1996-08-12 | 1996-08-12 | Manufacture of functional biscuit-fired product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1059763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006043621A (en) * | 2004-08-06 | 2006-02-16 | Kenichi Zanba | Photocatalyst argil |
| JP2007332131A (en) * | 2006-05-15 | 2007-12-27 | Tottori Univ | Gradually disintegrating antibacterial agent, antibacterial liquid by using the same and device for forming the antibacterial liquid |
-
1996
- 1996-08-12 JP JP8231402A patent/JPH1059763A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006043621A (en) * | 2004-08-06 | 2006-02-16 | Kenichi Zanba | Photocatalyst argil |
| JP2007332131A (en) * | 2006-05-15 | 2007-12-27 | Tottori Univ | Gradually disintegrating antibacterial agent, antibacterial liquid by using the same and device for forming the antibacterial liquid |
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