JPH01104348A - Catalyst film and manufacture thereof - Google Patents
Catalyst film and manufacture thereofInfo
- Publication number
- JPH01104348A JPH01104348A JP62260010A JP26001087A JPH01104348A JP H01104348 A JPH01104348 A JP H01104348A JP 62260010 A JP62260010 A JP 62260010A JP 26001087 A JP26001087 A JP 26001087A JP H01104348 A JPH01104348 A JP H01104348A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- film
- oxidation catalyst
- polymerization inhibitor
- layer
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 65
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000003647 oxidation Effects 0.000 claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 35
- 239000003112 inhibitor Substances 0.000 claims abstract description 22
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 33
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract description 2
- 239000004927 clay Substances 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 8
- 235000014593 oils and fats Nutrition 0.000 description 6
- 238000010411 cooking Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Catalysts (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、触媒皮膜及びその製造方法に関するものであ
り、例えばオーブンレンジ等の調理器具に用いられるセ
ルフクリーニング塗料に適用される。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a catalyst film and a method for producing the same, and is applied to, for example, self-cleaning paints used in cooking utensils such as oven ranges.
〈従来技術〉
従来のセルフクリーニング効果（その表面に付着した油
脂類を分解して清浄に保つ効果）を有する触媒皮膜は、
金属や金属酸化物触媒あるいはこれに重合阻止剤を混合
したホーローならびに水溶性無機質塗料やシリコーン塗
料等により形成されている。<Prior art> Conventional catalyst films that have a self-cleaning effect (the effect of decomposing oils and fats attached to the surface and keeping it clean) are
It is formed from a metal or metal oxide catalyst or enamel mixed with a polymerization inhibitor, water-soluble inorganic paint, silicone paint, etc.
く 発明が解決しようとする問題点 〉上記従来技術に
おける触媒皮膜は、そのセルフクリーニング効果が十分
ではないといった問題点があった。これは、酸化触媒や
重合阻止剤がフリットや樹脂に覆われ、油脂類との接触
面が少ないためであると考えられている。Problems to be Solved by the Invention The catalyst film in the prior art described above has a problem in that its self-cleaning effect is insufficient. This is thought to be because the oxidation catalyst and polymerization inhibitor are covered with frit and resin, and there is less contact surface with oils and fats.
そこで、本発明は、酸化触媒や重合阻止剤と油脂類との
接触面積を増やし、優れたセルフクリーニング効果をも
つ触媒皮膜を得ることを目的とする。Therefore, an object of the present invention is to increase the contact area between an oxidation catalyst or a polymerization inhibitor and oils and fats, and to obtain a catalyst film having an excellent self-cleaning effect.
く 問題点を解決するための手段 〉
本発明による問題点解決手段は、第１図〜第３図の如く
、皮膜層１の最下部１ａから最上部！ｂに向かい触媒含
有率が増加する断面を有し、該触媒は酸化触媒あるいは
酸化触媒と重合阻止剤との混合物である。Means for Solving the Problems> The means for solving the problems according to the present invention are as shown in FIGS. It has a cross section in which the catalyst content increases toward b, and the catalyst is an oxidation catalyst or a mixture of an oxidation catalyst and a polymerization inhibitor.
そして、その製造方法は、耐熱造膜組成物を用いて下塗
り層２を形成し、該下塗り層２がウェットの状態でその
表面に、溶剤に分散させた酸化触媒あるいは酸化触媒と
重合阻止剤との混合物を塗布して上塗り層３を形成した
後、焼成を行なうものである。The manufacturing method is to form an undercoat layer 2 using a heat-resistant film-forming composition, and apply an oxidation catalyst or an oxidation catalyst and a polymerization inhibitor dispersed in a solvent to the surface of the undercoat layer 2 in a wet state. After coating the mixture to form the top coat layer 3, baking is performed.
そして、前記下塗り層２を形成する物質は、従来と同様
なシリコーン樹脂塗料等の耐熱塗料、セルフクリーニン
グ塗料及び耐熱接着剤等が用いられる。As the substance forming the undercoat layer 2, conventional heat-resistant paints such as silicone resin paints, self-cleaning paints, heat-resistant adhesives, etc. are used.
また、上塗り層３を形成する物質は、白金アルミナ、パ
ラジウムアルミナ、酸化マンガン、酸化ニッケル等の酸
化触媒、あるいは該酸化触媒と水酸化アルミニウム、活
性白土、メタ珪酸リチウム、酸化アルミニウム等の重合
阻止剤とを組み合わせ、溶剤（水を含む）中に、粒径ｌ
〜３００μｍ（マイクロメートル）程度として分散させ
たものである。The substance forming the top coat layer 3 is an oxidation catalyst such as platinum alumina, palladium alumina, manganese oxide, or nickel oxide, or the oxidation catalyst and a polymerization inhibitor such as aluminum hydroxide, activated clay, lithium metasilicate, or aluminum oxide. in a solvent (including water) with a particle size l
It is dispersed to about 300 μm (micrometers).
ここで、酸化触媒と重合阻１１−剤との混合比率は、そ
の比を３１（酸化触媒７５％）とすると最乙良好なセル
フクリーニング効果が得られるが、その比が１・４以上
（酸化触媒２０％以上）であれば、酸化触媒のみ（酸化
触媒１００％）でしよい。すなわち、酸化触媒と重合阻
止剤との混合比率は、酸化触媒が２０％〜１００％、重
合阻止剤が８０％〜０％の範囲であればよい。Here, when the mixing ratio of the oxidation catalyst and the polymerization inhibitor is 31 (oxidation catalyst 75%), the best self-cleaning effect can be obtained, but if the ratio is 1.4 or more (oxidation (catalyst 20% or more), only the oxidation catalyst (100% oxidation catalyst) may be used. That is, the mixing ratio of the oxidation catalyst and the polymerization inhibitor may be in the range of 20% to 100% of the oxidation catalyst and 80% to 0% of the polymerization inhibitor.
一方、塗装厚の範囲は、下塗り層２を５０μｍ以上に形
成し、上塗り層３をその１．２倍程度に形成すると最ム
良好なセルフクリーニング効果が得られるが、下塗り層
２をｌＯ〜２００μｍ程度、上塗り層３を１０〜２００
μｍ程度の範囲に形成してもよい。On the other hand, the best self-cleaning effect can be obtained by forming the undercoat layer 2 to a thickness of 50 μm or more and the topcoat layer 3 to about 1.2 times that thickness. degree, topcoat layer 3 10-200
It may be formed in a range of approximately μm.
そして、焼成を２５０℃以上で行なうと、その境界面４
で酸化触媒や重合阻止剤が拡散し、皮膜層ｌの最下部１
ａから最上部ｔｂに向かい触媒含有率が増加する断面を
有するようになる。When firing is performed at 250°C or higher, the boundary surface 4
The oxidation catalyst and polymerization inhibitor diffuse into the bottom 1 of the film layer 1.
It has a cross section in which the catalyst content increases from a to the top tb.
すなわち、下塗り層２がウェットの状態で、−ｈ塗り層
３を形成し、その後、焼成を行なう２コート１ベーク（
２Ｃｏａｔ Ｉ Ｂａｋｅ）処理により皮膜を形成する
ため、表面に酸化触媒粒子や重合阻止剤粒子が露出し、
該粒子と油脂類との接触面を多くすることができ、優れ
たセルフクリーニング効果を得ることができる。That is, the -h coating layer 3 is formed while the undercoat layer 2 is wet, and then baking is performed (two coats and one bake).
Because a film is formed by the 2Coat I Bake process, oxidation catalyst particles and polymerization inhibitor particles are exposed on the surface,
The contact surface between the particles and oils and fats can be increased, and an excellent self-cleaning effect can be obtained.
そして、本発明の触媒皮膜をオーブンレンジ等の調理器
具の加熱庫内面に形成すると、調理中に食品から飛散し
て加熱庫内面に付着した油脂類等は、皮膜表面に拡散分
布している酸化触媒や重合阻止剤の作用により、効率的
に分解され、調理器具内を清浄に保つことができる。ま
た、本体外装面に形成すると、台所内の調理により外装
面に飛散した油滴等が分解され、表面を清浄に保つこと
ができる。When the catalyst film of the present invention is formed on the inner surface of the heating chamber of cooking utensils such as a microwave oven, oils and fats etc. that scatter from the food and adhere to the inner surface of the heating chamber during cooking are oxidized and distributed on the surface of the film. Due to the action of catalysts and polymerization inhibitors, it is efficiently decomposed and the inside of cooking utensils can be kept clean. Furthermore, if it is formed on the exterior surface of the main body, oil droplets etc. scattered on the exterior surface due to cooking in the kitchen will be decomposed and the surface can be kept clean.
ここで、本発明触媒皮膜は、上記製造方法に限らず、他
の方法により製造してもよい。Here, the catalyst film of the present invention is not limited to the above manufacturing method, but may be manufactured by other methods.
〈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が
、本発明はこれら実施例に限定されるものではない。<Examples> Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.
［第一実施例］
鋼板製の基材５１に、ノリコーン樹脂塗料を塗布して厚
さ約５０μｍの下塗り層２を形成し、該下塗り層２がウ
ェットの状態で、その」二に第１表のＡ欄に示す如き組
成の物質を塗布し、上塗り層３を約５０μｍの厚ざに形
成する。その後、２５０°Ｃ以上の温度で熱焼成するこ
とにより、酸化触媒リッチな皮膜層１が形成される。こ
こで形成された皮膜層ｌは、第２図に破線で示す如く、
皮膜層１の最下部＋ａから最上部１ｂに向かい触媒含￥
ｆ率が増加する断面を有している。[First Example] A base coat 51 made of a steel plate is coated with a noricorn resin paint to form an undercoat layer 2 with a thickness of about 50 μm, and when the undercoat layer 2 is wet, the coating shown in Table 1 is applied. A material having a composition as shown in column A is applied to form an overcoat layer 3 having a thickness of about 50 μm. Thereafter, the film layer 1 rich in oxidation catalyst is formed by thermal baking at a temperature of 250° C. or higher. The film layer l formed here is as shown by the broken line in FIG.
From the bottom +a of the film layer 1 to the top 1b, including the catalyst
It has a cross section in which the f-factor increases.
［第二実施例］
鋼板製の基材５上に、従来と同様なセルフクリーニング
塗料を塗布して厚さ約５０μｍの下塗り層２を形成し、
該下塗り層２がウェットの状態で、その上に第１表のＢ
欄に示す如き組成の物質を塗布し、上塗り層３を約５０
μｍの厚さに形成する。[Second Example] On a base material 5 made of a steel plate, a self-cleaning paint similar to the conventional one is applied to form an undercoat layer 2 with a thickness of about 50 μm,
When the undercoat layer 2 is wet, B in Table 1 is applied thereon.
Coat a material with the composition shown in the column to form an overcoat layer 3 of approximately 50%
Formed to a thickness of μm.
その後、２５０’Ｃ以上の温度で熱焼成することにより
、表面が酸化触媒や重合阻止剤リッチな皮膜層ｌが形成
される。ここで形成された皮膜層Ｉは、第２図に実線で
示す如く、皮膜層ｌの最下部１ａから最上部！ｂに向か
い触媒含有率が増加する断面を有している。Thereafter, by thermal baking at a temperature of 250'C or higher, a coating layer l rich in oxidation catalyst and polymerization inhibitor is formed on the surface. The film layer I formed here ranges from the lowermost part 1a of the film layer I to the uppermost part, as shown by the solid line in FIG. It has a cross section in which the catalyst content increases toward b.
第１表
ソシて、これらの触媒皮膜ｌのセルフクリーニング能力
は、第２表に示す如く、従来のものに比較して優秀であ
ることがわかる。From Table 1, it can be seen that the self-cleaning ability of these catalyst films is superior to that of the conventional ones, as shown in Table 2.
これらのデータは、サラダ油の加熱減量を熱天秤により
測定したものである。なお、加熱時の温度上昇率は２０
℃／分とした。第２表中、「ｓｃ」はセルフクリーニン
グの略称である。These data are obtained by measuring the loss on heating of salad oil using a thermobalance. In addition, the temperature increase rate during heating is 20
°C/min. In Table 2, "sc" is an abbreviation for self-cleaning.
〈発明の効果〉
以上の説明から明らかな通り、本発明によると、皮膜層
最下部から最上部に向かい触媒含有率が増加する断面を
存し、該触媒は酸化触媒あるいは酸化触媒と重合阻止剤
との混合物であるため、酸化触媒や重合阻止剤と油脂類
との接触面積を増やすことができ、優れたセルフクリー
ニング効果を得ることができる。<Effects of the Invention> As is clear from the above description, according to the present invention, the film layer has a cross section in which the catalyst content increases from the bottom to the top, and the catalyst is an oxidation catalyst or an oxidation catalyst and a polymerization inhibitor. Since it is a mixture of oxidation catalysts and polymerization inhibitors, the contact area between the oxidation catalyst and the polymerization inhibitor and the oils and fats can be increased, and an excellent self-cleaning effect can be obtained.
また、耐熱造膜組成物を用いて下塗り層を形成し、該下
塗り層がウェットの状態でその表面に、溶剤に分散させ
た酸化触媒あるいは酸化触媒と重合阻止剤との混合物を
塗布して上塗り層を形成した後、焼成を行なうと、優れ
たセルフクリーニング効果を持つ触媒皮膜を、容易に製
造することができるといった優れた効果がある。In addition, an undercoat layer is formed using a heat-resistant film-forming composition, and an oxidation catalyst or a mixture of an oxidation catalyst and a polymerization inhibitor dispersed in a solvent is applied to the surface of the undercoat layer in a wet state, and then an overcoat is applied. After forming the layer, baking is performed, which has an excellent effect in that a catalyst film having an excellent self-cleaning effect can be easily produced.
第１図は本発明触媒皮膜を示す拡大断面図、第２図は同
じく皮膜中の各位置における触媒量を示す線図、第３図
は同じく焼成前の拡大断面図である。
ｌ：皮膜層、ｌａ：皮膜層の最下部、！ｂ：皮膜層の最
上部、２：下塗り層、３：上塗り層、４：境界面、５：
基材。
出 願 人 シャープ株式会社
同 オキツモ株式会社FIG. 1 is an enlarged sectional view showing the catalyst film of the present invention, FIG. 2 is a diagram showing the amount of catalyst at each position in the film, and FIG. 3 is an enlarged sectional view before firing. l: film layer, la: bottom of film layer, ! b: Top of film layer, 2: Undercoat layer, 3: Topcoat layer, 4: Boundary surface, 5:
Base material. Applicant Sharp Corporation Okitsumo Corporation
Claims (1)
する断面を有し、該触媒は酸化触媒あるいは酸化触媒と
重合阻止剤との混合物であることを特徴とする触媒皮膜
。 ２ 耐熱造膜組成物を用いて下塗り層を形成し、該下塗
り層がウェットの状態でその表面に、溶剤に分散させた
酸化触媒あるいは酸化触媒と重合阻止剤との混合物を塗
布して上塗り層を形成した後、焼成を行なうことを特徴
とする触媒皮膜の製造方法。[Scope of Claims] 1. A catalyst having a cross section in which the catalyst content increases from the bottom to the top of the coating layer, and the catalyst is an oxidation catalyst or a mixture of an oxidation catalyst and a polymerization inhibitor. membrane. 2. An undercoat layer is formed using a heat-resistant film-forming composition, and an oxidation catalyst or a mixture of an oxidation catalyst and a polymerization inhibitor dispersed in a solvent is applied to the surface of the undercoat layer in a wet state to form an overcoat layer. 1. A method for producing a catalyst film, the method comprising: forming a catalyst film, and then firing the film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260010A JPH074533B2 (en) | 1987-10-14 | 1987-10-14 | Catalyst coating and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62260010A JPH074533B2 (en) | 1987-10-14 | 1987-10-14 | Catalyst coating and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01104348A true JPH01104348A (en) | 1989-04-21 |
| JPH074533B2 JPH074533B2 (en) | 1995-01-25 |
Family
ID=17342052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62260010A Expired - Fee Related JPH074533B2 (en) | 1987-10-14 | 1987-10-14 | Catalyst coating and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074533B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144864A (en) * | 2005-11-29 | 2007-06-14 | Sanyo Electric Co Ltd | Laminated structure and refrigeration unit using the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154577A (en) * | 1979-05-23 | 1980-12-02 | Mitsubishi Electric Corp | Forming method of self-purifying type wall face of inner wall of kitchen utensil vessel |
| JPS55155738A (en) * | 1979-05-24 | 1980-12-04 | Sharp Corp | Film for self-cleaning and its production |
-
1987
- 1987-10-14 JP JP62260010A patent/JPH074533B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154577A (en) * | 1979-05-23 | 1980-12-02 | Mitsubishi Electric Corp | Forming method of self-purifying type wall face of inner wall of kitchen utensil vessel |
| JPS55155738A (en) * | 1979-05-24 | 1980-12-04 | Sharp Corp | Film for self-cleaning and its production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144864A (en) * | 2005-11-29 | 2007-06-14 | Sanyo Electric Co Ltd | Laminated structure and refrigeration unit using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074533B2 (en) | 1995-01-25 |
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