JP2003338359A - Top plate for cooking device - Google Patents
Top plate for cooking deviceInfo
- Publication number
- JP2003338359A JP2003338359A JP2002169383A JP2002169383A JP2003338359A JP 2003338359 A JP2003338359 A JP 2003338359A JP 2002169383 A JP2002169383 A JP 2002169383A JP 2002169383 A JP2002169383 A JP 2002169383A JP 2003338359 A JP2003338359 A JP 2003338359A
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- light
- cooker
- infrared heating
- heating device
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電磁加熱装置と赤外線
加熱装置を備えた調理器のトッププレートに関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top plate for a cooker equipped with an electromagnetic heating device and an infrared heating device.
【０００２】[0002]
【従来の技術】電気調理器の加熱系には、ラジエントヒ
ーターや、高出力タイプで知られるハロゲンヒーターな
どの赤外線加熱装置や、インダクションヒーター（Ｉ
Ｈ）などの電磁加熱装置が用いられている。2. Description of the Related Art As a heating system of an electric cooker, an infrared heater such as a radiant heater or a halogen heater known as a high output type, an induction heater (I
H) and other electromagnetic heating devices are used.
【０００３】従来、赤外線加熱装置を備えた調理器のト
ッププレートには、可視光を遮断して赤外光を透過する
濃色結晶化ガラス板が利用されている。可視光の遮断
は、加熱装置部品を見えにくくすることや、ハロゲンヒ
ーターからの強力な可視発光を軽減し、眩しくないよう
にするためである。なおこの種の調理器は、赤熱したヒ
ーター部が濃色結晶化ガラス板を通して視認できるた
め、それを加熱時の目印としている。Conventionally, a dark-colored crystallized glass plate that blocks visible light and transmits infrared light is used as a top plate of a cooking device provided with an infrared heating device. The blocking of the visible light is for making the parts of the heating device difficult to see, and for reducing the strong visible light emission from the halogen heater to prevent the glare. In addition, in this type of cooking device, the heater part that is red-hot can be visually recognized through the dark-colored crystallized glass plate, so that it is used as a mark when heating.
【０００４】一方、電磁加熱装置を備えた調理器は、赤
外線加熱装置のように可視光の発生をともなわないた
め、加熱時の目印となるヒーター部の点灯がない。そこ
でこの種の調理器では、発光ダイオードなどを用いて電
磁加熱パワーを別途表示するようになってきている。こ
の加熱パワー表示体は、調理器の側部に設けられるもの
もあるが、加熱部の近傍に設置してトッププレートを通
して加熱パワーを確認できるものが主流となりつつあ
る。ところが発光ダイオードの光は、従来の赤外線加熱
ヒーターから発せられる光ほど強くない。このため濃色
結晶化ガラス板ではダイオードの光が目立たず、見にく
いという難点がある。そこで電磁加熱装置のトッププレ
ートには、発光ダイオードを表示する部位を除いて遮光
被膜を設けることで、調理器の内部構造を見えないよう
にした透明結晶化ガラス板が用いられつつある。遮光被
膜には、ラスター層（金属光沢膜）や、無機顔料粉末と
ガラス粉末の混合物からなる無機顔料層が用いられる。
これらの遮光被膜は何れも膜材料を印刷、焼成すること
により形成される。On the other hand, the cooking device provided with the electromagnetic heating device does not generate visible light, unlike the infrared heating device, so that the heater portion serving as a mark at the time of heating is not turned on. Therefore, in this type of cooking device, the electromagnetic heating power is separately displayed using a light emitting diode or the like. Some of the heating power indicators are provided on the side of the cooking device, but those that can be installed near the heating portion to check the heating power through the top plate are becoming mainstream. However, the light emitted from the light emitting diode is not as intense as the light emitted from a conventional infrared heater. Therefore, the dark crystallized glass plate has a drawback that the light of the diode is not conspicuous and is difficult to see. Therefore, a transparent crystallized glass plate is being used for the top plate of the electromagnetic heating device, which is provided with a light-shielding film except for the portion where the light-emitting diode is displayed so that the internal structure of the cooker cannot be seen. A raster layer (metallic luster film) or an inorganic pigment layer made of a mixture of inorganic pigment powder and glass powder is used for the light-shielding film.
Each of these light-shielding coatings is formed by printing and baking a film material.
【０００５】[0005]
【発明が解決しようとする課題】近年、赤外線加熱調理
器と電磁調理器の両方を備えた調理器が普及しつつある
が、そのトッププレートには遮光被膜を設けた透明結晶
化ガラス板が用いられている。In recent years, cookers equipped with both an infrared heating cooker and an electromagnetic cooker are becoming widespread, but a transparent crystallized glass plate provided with a light-shielding coating is used for the top plate thereof. Has been.
【０００６】しかしラスター層は可視光の遮断性がそれ
ほど高くなく、これを遮光被膜に用いたトッププレート
は、構造上内部構造が目立ちやすい電磁加熱装置用とし
ては不向きである。またラスター層の多くは貴金属を含
有するため高価であり、安価なトッププレートを提供す
ることが難しい。一方、無機顔料層の場合、可視光の遮
蔽性能は高いものの、赤外線透過率が低いため、これを
用いたトッププレートは、赤外線加熱装置により効率よ
く加熱することが困難である。However, the raster layer is not so high in the ability to block visible light, and a top plate using this as a light-shielding coating is unsuitable for an electromagnetic heating device in which the internal structure tends to stand out. Also, most of the raster layers are expensive because they contain a noble metal, and it is difficult to provide an inexpensive top plate. On the other hand, in the case of the inorganic pigment layer, although the visible light shielding performance is high, the infrared transmittance is low, so that it is difficult to efficiently heat the top plate using the inorganic pigment layer by the infrared heating device.
【０００７】本発明の目的は、外観が良好で、赤外線加
熱装置の調理性能が高く、しかも安価に作製可能な調理
器用トッププレートを提供することにある。It is an object of the present invention to provide a top plate for a cooker which has a good appearance, has a high cooking performance of an infrared heating device, and can be manufactured at low cost.
【０００８】[0008]
【課題を解決するための手段】本発明の調理器用トップ
プレートは、電磁加熱装置と赤外線加熱装置を備えた調
理器のトッププレートとして用いられる調理器用トップ
プレートであって、低膨張透明結晶化ガラス板の表面に
無機顔料層からなる遮光被膜が形成されてなり、赤外線
加熱部分の遮光被膜の印刷密度が電磁加熱部分のそれよ
り低いことを特徴とする。A top plate for a cooker according to the present invention is a top plate for a cooker used as a top plate of a cooker having an electromagnetic heating device and an infrared heating device, and is a low expansion transparent crystallized glass. A light-shielding coating composed of an inorganic pigment layer is formed on the surface of the plate, and the printing density of the light-shielding coating in the infrared heating portion is lower than that in the electromagnetic heating portion.
【０００９】また本発明の調理器用トッププレートは、
電磁加熱装置と赤外線加熱装置を備えた調理器のトップ
プレートとして用いられる調理器用トッププレートであ
って、低膨張透明結晶化ガラス板の表面に無機顔料層か
らなる遮光被膜が形成されてなり、赤外線加熱部分の遮
光被膜は、直径０．０５〜５ｍｍの開孔が１ｃｍ2当た
り５〜５００個形成されてなることを特徴とする。The top plate for a cooker of the present invention is
A top plate for a cooker used as a top plate of a cooker equipped with an electromagnetic heating device and an infrared heating device, wherein a light-shielding coating consisting of an inorganic pigment layer is formed on the surface of a low expansion transparent crystallized glass plate, and infrared rays The light-shielding coating on the heated portion is characterized in that 5 to 500 holes having a diameter of 0.05 to 5 mm are formed per cm 2 .
【００１０】また本発明の調理器用トッププレートは、
赤外線加熱装置を備えた調理器のトッププレートとして
用いられる調理器用トッププレートであって、低膨張透
明結晶化ガラス板の表面に無機顔料層からなる遮光被膜
が形成されてなり、赤外線加熱部分の遮光被膜の印刷密
度がその他の遮光被膜形成部分のそれより低いことを特
徴とする。The top plate for a cooker of the present invention is
A top plate for a cooker used as a top plate of a cooker equipped with an infrared heating device, wherein a light-shielding coating consisting of an inorganic pigment layer is formed on the surface of a low-expansion transparent crystallized glass plate to shield the infrared heating portion from light. The print density of the coating is lower than that of the other light-shielding coating forming portions.
【００１１】また本発明の調理器用トッププレートは、
赤外線加熱装置を備えた調理器のトッププレートとして
用いられる調理器用トッププレートであって、低膨張透
明結晶化ガラス板の表面に無機顔料層からなる遮光被膜
が形成されてなり、赤外線加熱部分の遮光被膜は、直径
０．０５〜５ｍｍの開孔が１ｃｍ2当たり５〜５００個
形成されてなることを特徴とする。The top plate for a cooker of the present invention is
A top plate for a cooker used as a top plate for a cooker equipped with an infrared heating device, wherein a light-shielding coating consisting of an inorganic pigment layer is formed on the surface of a low-expansion transparent crystallized glass plate to shield the infrared heating portion from light. The coating is characterized in that 5 to 500 openings having a diameter of 0.05 to 5 mm are formed per 1 cm 2 .
【００１２】[0012]
【作用】本発明の調理器用トッププレートは、透明結晶
化ガラス板の表面に無機顔料層からなる遮光被膜が形成
されている。In the cooker top plate of the present invention, a light-shielding film made of an inorganic pigment layer is formed on the surface of a transparent crystallized glass plate.
【００１３】無機顔料層は、無機顔料とガラスからな
る。また結晶化ガラス板との膨張差によるクラック発生
を防止するために多孔質であることが望ましい。無機顔
料層を多孔質にするためには、無機顔料粉末とガラス粉
末の割合が質量比で５：５〜９：１、好ましくは５：５
〜８：２の範囲にある形成材料を使用することが好まし
い。ガラス粉末の割合が１割以上であれば、無機顔料粉
末を結晶化ガラス板に強固に固定することができ、また
５割以下であれば、ガラス粉末が緻密に焼結することが
なく、容易に多孔質膜を得ることができる。The inorganic pigment layer comprises an inorganic pigment and glass. In addition, it is preferably porous so as to prevent cracking due to the difference in expansion from the crystallized glass plate. In order to make the inorganic pigment layer porous, the mass ratio of the inorganic pigment powder and the glass powder is 5: 5 to 9: 1, preferably 5: 5.
It is preferable to use a forming material in the range of 8: 2. If the ratio of the glass powder is 10% or more, the inorganic pigment powder can be firmly fixed to the crystallized glass plate, and if it is 50% or less, the glass powder does not sinter densely and easily. A porous membrane can be obtained.
【００１４】無機顔料粉末としては、ＴｉＯ2、Ｚｒ
Ｏ2、ＺｒＳｉＯ4の他、Ｃｏ−Ａｌ−Ｚｎ系、Ｃｏ−Ａ
ｌ−Ｓｉ系、Ｃｏ−Ａｌ−Ｔｉ系、Ｃｏ−Ａｌ−Ｃｒ
系、Ｃｏ−Ｎｉ−Ｔｉ−Ｚｎ系、Ｔｉ−Ｓｂ−Ｃｒ系、
Ｔｉ−Ｎｉ系、Ｃｏ−Ｓｉ系、Ｔｉ−Ｆｅ−Ｚｎ系、Ｆ
ｅ−Ｚｎ系、Ｆｅ−Ｎｉ−Ｃｒ系、Ｚｎ−Ｆｅ−Ｃｒ−
Ａｌ系、Ｃｏ−Ｃｒ−Ｆｅ系、Ｃｕ−Ｃｒ系、Ｃｕ−Ｃ
ｒ−Ｆｅ系、Ｃｕ−Ｃｒ−Ｍｎ系の酸化物顔料等を単独
又は混合して用いることができる。ガラス粉末として
は、Ｂ2Ｏ3−ＳｉＯ2系、Ｎａ2Ｏ−ＣａＯ−ＳｉＯ
2系、Ｌｉ2Ｏ−Ａｌ2Ｏ3−ＳｉＯ2系、ＺｎＯ−Ａｌ2Ｏ
3−Ｐ2Ｏ5系等のガラスが使用できる。Inorganic pigment powders include TiO 2 , Zr
O 2 , ZrSiO 4 , Co-Al-Zn system, Co-A
1-Si type, Co-Al-Ti type, Co-Al-Cr type
System, Co-Ni-Ti-Zn system, Ti-Sb-Cr system,
Ti-Ni system, Co-Si system, Ti-Fe-Zn system, F
e-Zn system, Fe-Ni-Cr system, Zn-Fe-Cr-
Al-based, Co-Cr-Fe-based, Cu-Cr-based, Cu-C
R-Fe-based and Cu-Cr-Mn-based oxide pigments can be used alone or in combination. As the glass powder, B 2 O 3 —SiO 2 system, Na 2 O—CaO—SiO
2 system, Li 2 O-Al 2 O 3 -SiO 2 system, ZnO-Al 2 O
Glass such as 3- P 2 O 5 system can be used.
【００１５】遮光被膜の厚みは、赤外線加熱部分、電磁
加熱部分とも平均０．１〜５０μｍ、特に０．２〜４０
μｍであることが好ましい。厚みが０．１μｍ以上であ
れば加熱装置を隠すための可視光遮蔽が可能となり、ま
た５０μｍ以下であれば、印刷回数の増加や材料コスト
の増加による製膜コストの上昇を抑制することができ
る。さらに、トッププレートは再溶融してリサイクルさ
れるが、被膜に含まれる無機顔料はガラスにとって不純
物となり、ガラスの着色の原因となる。しかし膜厚が薄
ければ着色が生じ難くなる。The thickness of the light-shielding film is 0.1 to 50 μm on average in both the infrared heating portion and the electromagnetic heating portion, and particularly 0.2 to 40.
It is preferably μm. When the thickness is 0.1 μm or more, it is possible to shield visible light for hiding the heating device, and when it is 50 μm or less, it is possible to suppress an increase in film forming cost due to an increase in the number of printing times and an increase in material cost. . Further, although the top plate is remelted and recycled, the inorganic pigment contained in the coating film becomes an impurity for the glass and causes coloring of the glass. However, if the film thickness is thin, coloring is less likely to occur.
【００１６】本発明の調理器用トッププレートは、赤外
線加熱部分の遮光被膜の印刷密度が電磁加熱部分等その
他の遮光被膜形成部分のそれより低いことを特徴とす
る。赤外線加熱部分の遮光被膜の印刷密度を低くするこ
とにより、赤外線加熱に必要な量の赤外線を透過させる
ことが可能になる。なお、本発明でいう「印刷密度」と
は、単位面積当たりの膜形成（印刷）面積を意味してい
る。例えばトッププレートの或る領域１ｃｍ2当たりの
膜形成部分の総面積が０．５ｃｍ2である場合、印刷密
度は５０％である。また「赤外線加熱部分の印刷密度」
とは、調理器の赤外線加熱装置と対応する領域全体の平
均印刷密度であり、「その他の遮光被膜形成部分の印刷
密度」とは、赤外線加熱部分を除いた遮光被膜全体の平
均印刷密度であり、また「電磁加熱部分の印刷密度」と
は、電磁加熱装置と対応する領域全体の平均印刷密度を
意味している。The top plate for a cooker of the present invention is characterized in that the print density of the light-shielding coating in the infrared heating portion is lower than that in other portions forming the light-shielding coating such as the electromagnetic heating portion. By reducing the printing density of the light-shielding coating in the infrared heating portion, it becomes possible to transmit the infrared rays in an amount necessary for infrared heating. The “printing density” in the present invention means a film forming (printing) area per unit area. For example, when the total area of the film forming portion per 1 cm 2 of a certain area of the top plate is 0.5 cm 2 , the printing density is 50%. Also, "print density of infrared heating part"
Is the average print density of the entire area corresponding to the infrared heating device of the cooking device, and "the print density of the other light-shielding film forming portion" is the average print density of the entire light-shielding film excluding the infrared heating portion. Further, the "print density of the electromagnetic heating portion" means the average print density of the entire area corresponding to the electromagnetic heating device.
【００１７】赤外線加熱部分の印刷密度は、電磁加熱部
分等その他の遮光被膜形成部分の印刷密度の３０〜８０
％、特に４０〜８０％であることが好ましい。赤外線加
熱部分の印刷密度が電磁加熱部分等の３０％以上であれ
ば、加熱装置等の内容物を完全に隠すための可視光遮蔽
が可能となり、また印刷密度が８０％以下であれば、赤
外線透過量が十分となり、高い調理性能が得られる。The printing density of the infrared heating portion is 30 to 80 of the printing density of the electromagnetic heating portion and other light shielding film forming portions.
%, Particularly preferably 40 to 80%. If the printing density of the infrared heating part is 30% or more of that of the electromagnetic heating part, visible light can be shielded to completely hide the contents of the heating device, and if the printing density is 80% or less, infrared rays can be used. The amount of permeation becomes sufficient and high cooking performance can be obtained.
【００１８】赤外線加熱部分の印刷密度を低くし、十分
な赤外線透過量を確保する方法としては、例えば多数の
開孔を設ける方法がある。As a method of lowering the printing density of the infrared heating portion and ensuring a sufficient infrared transmission amount, for example, there is a method of providing a large number of apertures.
【００１９】開孔を形成する場合、赤外線加熱部分全体
に均一に分布させることが望ましい。各開孔の大きさ
は、直径０．０５〜５ｍｍ程度、特に０．１〜３ｍｍ程
度であることが好ましい。また１ｃｍ2当たり５〜５０
０個程度、特に１０〜５００個程度の開孔を形成するこ
とが好ましい。When forming the openings, it is desirable that the openings be uniformly distributed over the entire infrared heating portion. The size of each opening is preferably about 0.05 to 5 mm in diameter, particularly about 0.1 to 3 mm. 5 to 50 per cm 2
It is preferable to form about 0 openings, especially about 10 to 500 openings.
【００２０】なお遮光被膜は、結晶化ガラス板全面に形
成してもよいが、必要に応じて未形成部分を設けてもよ
い。例えば加熱部分周辺に発光ダイオード表示領域を形
成するための未形成部分を設けることができる。The light-shielding film may be formed on the entire surface of the crystallized glass plate, but it may be provided with an unformed portion if necessary. For example, an unformed portion for forming a light emitting diode display region can be provided around the heated portion.
【００２１】本発明における透明結晶化ガラス板は、無
色の透明低膨張結晶化ガラスであることが好ましいが、
本発明の目的が達成されるのであれば有色の透明結晶化
ガラスでも差し支えない。結晶化ガラス板は、加熱、冷
却が繰り返されるため、低膨張であることが求められ、
特に３０〜７５０℃における平均線熱膨張係数が−１０
〜＋３０×１０-7／℃、特に−１０〜＋２０×１０-7／
℃の範囲にあるものを使用することが望ましい。熱膨張
係数が上記範囲内にあれば、加熱時にトッププレート内
部に著しい温度分布が生じても、膨張差で割れることが
ない。この条件を満たす結晶化ガラスとして、例えば日
本電気硝子株式会社製Ｎ−０がある。The transparent crystallized glass plate in the present invention is preferably a colorless transparent low expansion crystallized glass,
Colored transparent crystallized glass may be used as long as the object of the present invention is achieved. The crystallized glass plate is required to have low expansion because heating and cooling are repeated.
Particularly, the average linear thermal expansion coefficient at 30 to 750 ° C is -10.
To + 30 × 10 −7 / ° C., especially −10 to + 20 × 10 −7 /
It is desirable to use those in the range of ° C. When the coefficient of thermal expansion is within the above range, even if a remarkable temperature distribution occurs inside the top plate during heating, it will not crack due to the difference in expansion. An example of crystallized glass that satisfies this condition is N-0 manufactured by Nippon Electric Glass Co., Ltd.
【００２２】本発明の調理器用トッププレートは、遮光
被膜が調理器本体側、即ち電磁加熱装置や赤外線加熱装
置と対向するように調理器に取り付けて使用される。調
理器への取り付けは、調理器本体に設けられたトッププ
レート支持枠に、シリコン樹脂等を用いて接着、固定す
ることにより行われる。なお適用できる調理器は、赤外
線加熱装置を備えた調理器であればよく、電磁加熱装置
及び赤外線加熱装置の両方を備えた調理器のみならず、
赤外線加熱装置のみを備えた調理器にも適用できる。The cooker top plate of the present invention is used by being attached to the cooker such that the light-shielding coating faces the cooker body side, that is, the electromagnetic heating device or the infrared heating device. The attachment to the cooker is performed by adhering and fixing to the top plate support frame provided on the cooker main body using a silicone resin or the like. The applicable cooker may be a cooker equipped with an infrared heating device, and not only a cooker equipped with both an electromagnetic heating device and an infrared heating device,
It can also be applied to a cooker equipped with only an infrared heating device.
【００２３】なお調理器の上面となる面にも、意匠性向
上やヒーター位置の表示等のために、必要に応じて装飾
被膜を印刷形成することができる。装飾被膜も無機顔料
粉末とガラス粉末からなる材料を用いて形成できるが、
擦れても剥がれないように、また汚れが付着しにくいよ
うに、強固で平滑な膜にすることが必要である。それゆ
え装飾被膜用材料には、遮光被膜用材料よりもガラス含
有率の高いものを選択することが重要である。具体的に
は、装飾被膜材料中のガラス含有率は、質量基準で５割
以上であることが好ましい。またガラス粉末や無機顔料
粉末には、遮光被膜に用いるものと同様の材料を使用す
ることができる。If desired, a decorative coating can be printed on the upper surface of the cooking device to improve the design and display the heater position. The decorative coating can also be formed using a material composed of inorganic pigment powder and glass powder,
It is necessary to form a strong and smooth film so that it will not be peeled off even if it is rubbed, and that dirt will not easily adhere. Therefore, it is important to select a material having a higher glass content than the material for the light-shielding film as the material for the decorative film. Specifically, the glass content in the decorative coating material is preferably 50% or more on a mass basis. Further, the same material as that used for the light-shielding film can be used for the glass powder and the inorganic pigment powder.
【００２４】また調理器の上面となる面には、フッ素コ
ート等の防汚処理を施してもよい。The top surface of the cooking device may be subjected to antifouling treatment such as fluorine coating.
【００２５】本発明の調理器用トッププレートは、次の
ようにして作製される。まず所定のサイズに成形、加工
された低膨張透明結晶化ガラス板を用意する。また無機
顔料粉末とガラス粉末との混合粉末をペースト化する。
次いで結晶化ガラス板表面にペーストをスクリーン印
刷、転写等の方法で印刷し、乾燥させる。スクリーン印
刷の場合、スクリーンのパターンを変化させることによ
り、赤外線加熱部分の遮光被膜に所望の開孔を形成する
ことができる。その後、焼成することにより、透明結晶
化ガラス板上に無機顔料層からなる遮光被膜が形成され
た調理器用トッププレートを得ることができる。The top plate for a cooker of the present invention is manufactured as follows. First, a low-expansion transparent crystallized glass plate molded and processed into a predetermined size is prepared. Further, a mixed powder of the inorganic pigment powder and the glass powder is made into a paste.
Then, the paste is printed on the surface of the crystallized glass plate by a method such as screen printing or transfer and dried. In the case of screen printing, by changing the pattern of the screen, it is possible to form desired apertures in the light-shielding coating in the infrared heating portion. Then, by baking, it is possible to obtain a top plate for a cooker in which a light-shielding film made of an inorganic pigment layer is formed on a transparent crystallized glass plate.
【００２６】[0026]
【実施例】以下、実施例に基づいて本発明を説明する。EXAMPLES The present invention will be described below based on examples.
【００２７】（実施例１）まず市販のＣｕ−Ｃｒ−Ｍｎ
系黒色無機顔料粉末とＢ2Ｏ3−ＳｉＯ2系ガラス粉末
（日本電気硝子株式会社製ＢＨＷ）からなるフリット
に、樹脂及び有機溶剤を添加して遮光被膜形成用無機顔
料ペーストを作製した。なお無機顔料粉末とガラス粉末
の混合割合は、質量比で７：３とした。次にこのペース
トを日本電気硝子株式会社製の板厚４ｍｍの透明結晶化
ガラス板Ｎ−０（３０〜７５０℃の平均線熱膨張係数−
４×１０-7／℃）にスクリーン印刷した。ここで赤外線
加熱部分の印刷密度を、電磁加熱部分の印刷密度の０
％、１０％、２０％、３０％、４０％、５０％、６０
％、７０％、８０％、９０％、１００％と変えて印刷を
行った。印刷密度の変化は、赤外線加熱部分全体に均一
に分布させた開孔（１ｍｍφドット）の密度を変化させ
ることで調整した。続いてペーストを１００〜１５０℃
で１０〜２０分間乾燥させた後、８５０℃で３０分間焼
成を行い、図１に示すような、結晶化ガラス板１に無機
顔料層からなる遮光被膜２を形成した。なお図中、Ａは
赤外線加熱部分を示している。この遮光被膜２を膜厚計
で測定したところ、厚みは５μｍであった。(Example 1) First, commercially available Cu-Cr-Mn
An inorganic pigment paste for forming a light-shielding film was prepared by adding a resin and an organic solvent to a frit made of a black inorganic pigment powder and a B 2 O 3 —SiO 2 glass powder (BHW manufactured by Nippon Electric Glass Co., Ltd.). The mixing ratio of the inorganic pigment powder and the glass powder was 7: 3 in terms of mass ratio. Next, this paste is used as a transparent crystallized glass plate N-0 (average linear thermal expansion coefficient of 30 to 750 ° C.) manufactured by Nippon Electric Glass Co., Ltd.
Screen printing was performed at 4 × 10 −7 / ° C.). Here, the printing density of the infrared heating portion is set to 0 of the printing density of the electromagnetic heating portion.
%, 10%, 20%, 30%, 40%, 50%, 60
%, 70%, 80%, 90%, and 100%, and printing was performed. The change in print density was adjusted by changing the density of the apertures (1 mmφ dots) that were uniformly distributed over the entire infrared heating area. Then paste at 100-150 ° C
After drying for 10 to 20 minutes at 850 ° C., baking was performed at 850 ° C. for 30 minutes to form a light-shielding coating 2 made of an inorganic pigment layer on the crystallized glass plate 1 as shown in FIG. In the figure, A indicates an infrared heating portion. When this light-shielding coating 2 was measured with a film thickness meter, the thickness was 5 μm.
【００２８】このようにして作製した試料を、遮光被膜
が下方を向くように１．５ｋＷのラジアントヒーター上
部に設置し、フルパワーで３００ｍｌビーカーに入れた
１００ｍｌの水を沸騰させた。結果を表１、２に示す。The sample thus prepared was placed on the upper part of a 1.5 kW radiant heater with the light-shielding film facing downward, and 100 ml of water placed in a 300 ml beaker at full power was boiled. The results are shown in Tables 1 and 2.
【００２９】[0029]
【表１】 [Table 1]
【００３０】[0030]
【表２】 [Table 2]
【００３１】結果の判定は、外観については、明らかに
トッププレートを通して赤外線ヒーターの構造が見える
ものを「×」、ヒーター構造が認識可能であるが明瞭に
は見えないものを「△」とし、全く見えないものを
「○」とした。調理性能については、水の沸騰に要した
時間（分）を示した。Regarding the appearance, the appearance was marked with "x" when the structure of the infrared heater was clearly visible through the top plate, and "△" when the structure of the heater was recognizable but not clearly visible. Those that were not visible were marked with "○". Regarding cooking performance, the time (minutes) required for boiling water was shown.
【００３２】この結果、印刷密度が１０％以上の試料は
ヒーター構造が見えにくく、特に４０％以上の試料はヒ
ーターの存在が全く見えず、外観上好ましかった。また
９０％以下の試料は、実使用上、赤外線加熱が可能とな
り、特に８０％以下のものは、早期に水を沸騰させるこ
とができた。As a result, it was difficult to see the heater structure in the samples having a printing density of 10% or more, and the presence of the heater was not visible in the samples having a printing density of 40% or more. In addition, 90% or less of the samples could be heated by infrared rays in actual use, and especially 80% or less of the samples could boil water early.
【００３３】（実施例２）図２は、装飾被膜を形成した
本発明の調理器用トッププレートを示している。なお図
中、Ａは赤外線加熱部分を、Ｂは電磁加熱部分をそれぞ
れ表している。(Embodiment 2) FIG. 2 shows a cooker top plate of the present invention having a decorative coating formed thereon. In the figure, A indicates an infrared heating portion and B indicates an electromagnetic heating portion.
【００３４】まず実施例１と同様にして遮光被膜形成用
無機顔料ペーストを結晶化ガラス板にスクリーン印刷し
た。ここで赤外線加熱部分の印刷密度は、電磁加熱部分
の印刷密度の５０％とした。続いてペーストを１００〜
１５０℃で１０〜２０分間乾燥させた後、８５０℃で３
０分間焼成を行い、結晶化ガラス板１に無機顔料層から
なる遮光被膜２を形成した。この遮光被膜を膜厚計で測
定したところ、厚みは５μｍであった。First, in the same manner as in Example 1, the inorganic pigment paste for forming a light-shielding film was screen-printed on a crystallized glass plate. Here, the printing density of the infrared heating portion was 50% of the printing density of the electromagnetic heating portion. Then paste 100 ~
After drying at 150 ° C for 10 to 20 minutes, 3 at 850 ° C
Firing was performed for 0 minutes to form a light-shielding coating 2 made of an inorganic pigment layer on the crystallized glass plate 1. When this light-shielding film was measured with a film thickness meter, the thickness was 5 μm.
【００３５】調理面となるもう一方の面（表側）の装飾
被膜形成は、以下のように準備した。ＴｉＯ2白色無機
顔料粉末とＢ2Ｏ3−ＳｉＯ2系ガラス粉末からなるフリ
ットに、樹脂及び有機溶剤を添加して装飾被膜用無機顔
料ペーストを作製した。なお無機顔料粉末とガラス粉末
の混合割合は、質量比で３：７とした。次に、遮光被膜
が形成された面とは反対の面（表側）にこのペーストを
スクリーン印刷した。続いてペーストを１００〜１５０
℃で１０〜２０分間乾燥させた後、８５０℃で３０分間
焼成を行い、結晶化ガラス板１に装飾被膜３を形成し
た。このようにして形成された装飾被膜は、ガラス中に
無機顔料が分散しており、気孔を殆ど含まないものであ
った。装飾被膜を膜厚計で測定したところ、厚みは５μ
ｍであった。The formation of the decorative coating on the other surface (front side) to be the cooking surface was prepared as follows. A resin and an organic solvent were added to a frit composed of TiO 2 white inorganic pigment powder and B 2 O 3 —SiO 2 glass powder to prepare an inorganic pigment paste for decorative coating. The mixing ratio of the inorganic pigment powder and the glass powder was 3: 7 by mass. Next, this paste was screen-printed on the surface (front side) opposite to the surface on which the light-shielding coating was formed. Then paste 100-150
After drying at 10 ° C. for 10 to 20 minutes, baking was performed at 850 ° C. for 30 minutes to form a decorative coating 3 on the crystallized glass plate 1. The decorative coating formed in this manner had the inorganic pigment dispersed in the glass and contained almost no pores. The thickness of the decorative coating was 5μ when measured with a film thickness meter.
It was m.
【００３６】得られた調理器用トッププレートについ
て、トッププレート裏側に形成された遮光被膜を観察し
たところ、クラックは見られなかった。また表側は光沢
のある平滑な表面を呈していた。With respect to the obtained cooker top plate, when the light-shielding film formed on the back side of the top plate was observed, no crack was observed. The front side had a glossy and smooth surface.
【００３７】次にトッププレートを、電磁加熱部分が電
磁ヒーター（１．５ｋＷ）上に、赤外線加熱部分が赤外
線ヒーター（１．５ｋＷ）上になるように、遮光被膜を
下側にして調理器本体にセットした。Next, the cooker body is placed with the light shielding coating on the top plate so that the electromagnetic heating portion is on the electromagnetic heater (1.5 kW) and the infrared heating portion is on the infrared heater (1.5 kW). Set to.
【００３８】この調理器について、遮光性及び調理性能
を評価した。その結果、加熱装置の構造は全く見えなか
った。しかも電磁ヒーター、赤外線ヒーターとも良好な
調理性能を有していた。The light-shielding property and the cooking performance of this cooker were evaluated. As a result, the structure of the heating device was completely invisible. Moreover, both the electromagnetic heater and the infrared heater had good cooking performance.
【００３９】なお調理性能は、３００ｍｌ容器に入れた
１００ｍｌの水を、各ヒーターにてフルパワーで５分間
加熱することにより評価した。評価の結果、水が沸騰す
れば良好な調理性能を有していると判断した。The cooking performance was evaluated by heating 100 ml of water in a 300 ml container with each heater for 5 minutes at full power. As a result of the evaluation, it was determined that the water had a good cooking performance when it boiled.
【００４０】[0040]
【発明の効果】以上説明したように、本発明の調理器用
トッププレートは、外観が良好で、赤外線加熱装置の調
理性能が高く、しかも安価に作製可能であるため、電磁
加熱装置と赤外線加熱装置を備えた調理器のトッププレ
ートとして好適である。As described above, the cooker top plate of the present invention has a good appearance, the infrared heating device has high cooking performance, and can be manufactured at low cost. Therefore, the electromagnetic heating device and the infrared heating device are manufactured. It is suitable as a top plate of a cooking device provided with.
【図１】本発明の一実施例を示す説明図である。FIG. 1 is an explanatory diagram showing an embodiment of the present invention.
【図２】本発明の他の実施例を示す説明図であり、
（ａ）は平面図、（ｂ）は断面図である。FIG. 2 is an explanatory view showing another embodiment of the present invention,
(A) is a plan view and (b) is a sectional view.
１ 低膨張透明結晶化ガラス板 ２ 遮光被膜 ３ 装飾被膜 Ａ 赤外線加熱部分 Ｂ 電磁加熱部分 1 Low expansion transparent crystallized glass plate 2 light-shielding film 3 decorative coating A infrared heating part B electromagnetic heating part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 直秀 滋賀県大津市晴嵐二丁目７番１号 日本電 気硝子株式会社内 Ｆターム(参考） 3K051 AB02 AD35 AD39 CD42 CD43 CD44 3L087 AA03 AC21 DA24 DA30 4G059 AA01 AA08 AB06 AB09 AC06 AC08 DB10 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Naohide Yamada 2-7 Harumi Arashi, Otsu City, Shiga Prefecture Air Glass Co., Ltd. F term (reference) 3K051 AB02 AD35 AD39 CD42 CD43 CD44 3L087 AA03 AC21 DA24 DA30 4G059 AA01 AA08 AB06 AB09 AC06 AC08 DB10
Claims (10)
調理器のトッププレートとして用いられる調理器用トッ
ププレートであって、低膨張透明結晶化ガラス板の表面
に無機顔料層からなる遮光被膜が形成されてなり、赤外
線加熱部分の遮光被膜の印刷密度が電磁加熱部分のそれ
より低いことを特徴とする調理器用トッププレート。1. A top plate for a cooker used as a top plate of a cooker equipped with an electromagnetic heating device and an infrared heating device, wherein a light-shielding coating comprising an inorganic pigment layer is formed on the surface of a low expansion transparent crystallized glass plate. A top plate for a cooking device, wherein the light-shielding coating of the infrared heating portion has a lower printing density than that of the electromagnetic heating portion.
電磁加熱部分のそれの３０〜８０％であることを特徴と
する請求項１の調理器用トッププレート。2. The top plate for a cooker according to claim 1, wherein the printing density of the light-shielding coating on the infrared heating portion is 30 to 80% of that of the electromagnetic heating portion.
を有していることを特徴とする請求項１の調理器用トッ
ププレート。3. The top plate for a cooker according to claim 1, wherein the light-shielding coating of the infrared heating portion has a large number of openings.
０５〜５ｍｍの開孔を有していることを特徴とする請求
項３の調理器用トッププレート。4. The light-shielding coating for the infrared heating portion has a diameter of 0.
The cooker top plate according to claim 3, wherein the top plate has an opening of 05 to 5 mm.
当たり５〜５００個の開孔を有していることを特徴とす
る請求項３の調理器用トッププレート。5. The light-shielding coating on the infrared heating portion is 1 cm 2
The top plate for a cooker according to claim 3, wherein each top plate has 5 to 500 openings.
熱装置と対向する面に形成されてなることを特徴とする
請求項１の調理器用トッププレート。6. The top plate for a cooker according to claim 1, wherein the light-shielding film is formed on a surface facing the electromagnetic heating device and the infrared heating device.
５０℃における平均線熱膨張係数が−１０〜＋３０×１
０-7／℃である結晶化ガラスからなることを特徴とする
請求項１の調理器用トッププレート。7. A low expansion transparent crystallized glass plate is 30 to 7
Average linear thermal expansion coefficient at 50 ° C is -10 to +30 x 1
The top plate for a cooker according to claim 1, which is made of crystallized glass having a temperature of 0 -7 / ° C.
調理器のトッププレートとして用いられる調理器用トッ
ププレートであって、低膨張透明結晶化ガラス板の表面
に無機顔料層からなる遮光被膜が形成されてなり、赤外
線加熱部分の遮光被膜は、直径０．０５〜５ｍｍの開孔
が１ｃｍ2当たり５〜５００個形成されてなることを特
徴とする調理器用トッププレート。8. A cooker top plate used as a top plate of a cooker equipped with an electromagnetic heating device and an infrared heating device, wherein a light-shielding coating comprising an inorganic pigment layer is formed on the surface of a low expansion transparent crystallized glass plate. A top plate for a cooker, characterized in that the light-shielding coating of the infrared heating portion is formed with 5 to 500 openings per cm 2 having a diameter of 0.05 to 5 mm.
プレートとして用いられる調理器用トッププレートであ
って、低膨張透明結晶化ガラス板の表面に無機顔料層か
らなる遮光被膜が形成されてなり、赤外線加熱部分の遮
光被膜の印刷密度がその他の遮光被膜形成部分のそれよ
り低いことを特徴とする調理器用トッププレート。9. A cooker top plate used as a top plate of a cooker equipped with an infrared heating device, comprising a low-expansion transparent crystallized glass plate having a light-shielding coating formed of an inorganic pigment layer on the surface thereof. A top plate for a cooker, wherein the printing density of the light-shielding film in the infrared heating portion is lower than that of the other light-shielding film forming portions.
ププレートとして用いられる調理器用トッププレートで
あって、低膨張透明結晶化ガラス板の表面に無機顔料層
からなる遮光被膜が形成されてなり、赤外線加熱部分の
遮光被膜は、直径０．０５〜５ｍｍの開孔が１ｃｍ2当
たり５〜５００個形成されてなることを特徴とする調理
器用トッププレート。10. A cooker top plate used as a top plate of a cooker equipped with an infrared heating device, comprising a low expansion transparent crystallized glass plate having a light-shielding coating formed of an inorganic pigment layer on the surface thereof. A top plate for a cooker, wherein the light-shielding coating of the infrared heating portion is formed with 5 to 500 openings per cm 2 having a diameter of 0.05 to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002169383A JP4016730B2 (en) | 2001-06-12 | 2002-06-11 | Cooker top plate |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001176569 | 2001-06-12 | ||
| JP2001-176569 | 2001-06-12 | ||
| JP2002-71359 | 2002-03-15 | ||
| JP2002071359 | 2002-03-15 | ||
| JP2002169383A JP4016730B2 (en) | 2001-06-12 | 2002-06-11 | Cooker top plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003338359A true JP2003338359A (en) | 2003-11-28 |
| JP4016730B2 JP4016730B2 (en) | 2007-12-05 |
Family
ID=29715852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002169383A Expired - Lifetime JP4016730B2 (en) | 2001-06-12 | 2002-06-11 | Cooker top plate |
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| Country | Link |
|---|---|
| JP (1) | JP4016730B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004073355A1 (en) * | 2003-02-14 | 2004-08-26 | Kabushiki Kaisha Toshiba | Induction heating cooler |
| DE102006027739A1 (en) * | 2006-06-16 | 2007-12-20 | Schott Ag | Hob with a glass ceramic plate as a hob |
| DE102008020895A1 (en) | 2008-04-25 | 2009-10-29 | Schott Ag | Glass ceramic plate |
| CN115477464A (en) * | 2022-10-26 | 2022-12-16 | 湖南大学 | Quartz glass mold pressing forming device and method |
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| JPH0365532A (en) * | 1989-07-31 | 1991-03-20 | Narumi China Corp | Lustered crystallized glass |
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| JPH0554908U (en) * | 1991-12-25 | 1993-07-23 | 日本電気硝子株式会社 | Top plate for smooth top |
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2002
- 2002-06-11 JP JP2002169383A patent/JP4016730B2/en not_active Expired - Lifetime
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| JPS61116224A (en) * | 1984-11-13 | 1986-06-03 | Matsushita Electric Ind Co Ltd | Electric cooking heater |
| JPH0365532A (en) * | 1989-07-31 | 1991-03-20 | Narumi China Corp | Lustered crystallized glass |
| JPH0333996U (en) * | 1989-08-10 | 1991-04-03 | ||
| JPH0554908U (en) * | 1991-12-25 | 1993-07-23 | 日本電気硝子株式会社 | Top plate for smooth top |
| JPH09238841A (en) * | 1996-03-05 | 1997-09-16 | Nippon Electric Glass Co Ltd | Top plate for cooking device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004073355A1 (en) * | 2003-02-14 | 2004-08-26 | Kabushiki Kaisha Toshiba | Induction heating cooler |
| US7402781B2 (en) | 2003-02-14 | 2008-07-22 | Kabushiki Kaisha Toshiba | Induction heating cooler |
| DE102006027739A1 (en) * | 2006-06-16 | 2007-12-20 | Schott Ag | Hob with a glass ceramic plate as a hob |
| DE102006027739B4 (en) * | 2006-06-16 | 2008-05-29 | Schott Ag | Hob with a glass ceramic plate as a cooking surface |
| US7763832B2 (en) | 2006-06-16 | 2010-07-27 | Schott Ag | Cook top comprising a glass ceramic plate having an opaque coating and an improved window coating on a display window on an underside of the plate |
| DE102008020895A1 (en) | 2008-04-25 | 2009-10-29 | Schott Ag | Glass ceramic plate |
| EP2116517A1 (en) | 2008-04-25 | 2009-11-11 | Schott AG | Glass ceramic plate with noble metal coating |
| US8715817B2 (en) | 2008-04-25 | 2014-05-06 | Schott Ag | Glass ceramic plate |
| CN115477464A (en) * | 2022-10-26 | 2022-12-16 | 湖南大学 | Quartz glass mold pressing forming device and method |
| CN115477464B (en) * | 2022-10-26 | 2024-01-23 | 湖南大学 | Quartz glass compression molding device and method |
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|---|---|
| JP4016730B2 (en) | 2007-12-05 |
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