JPH0422430B2 - - Google Patents
Info
- Publication number
- JPH0422430B2 JPH0422430B2 JP62034268A JP3426887A JPH0422430B2 JP H0422430 B2 JPH0422430 B2 JP H0422430B2 JP 62034268 A JP62034268 A JP 62034268A JP 3426887 A JP3426887 A JP 3426887A JP H0422430 B2 JPH0422430 B2 JP H0422430B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- layer
- ferroelectric
- packaging material
- generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010410 layer Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 18
- 239000005022 packaging material Substances 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 5
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 4
- 229910002113 barium titanate Inorganic materials 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子レンジを用いて食品を調理する
際、焦げ目を付けたり、従来の調理時間を短縮す
ることができる発熱包材に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a heat-generating packaging material that can brown food and shorten the conventional cooking time when cooking food using a microwave oven. be.
従来、この種の発熱包材においては、基材とな
るポリエステルフイルムなどの耐熱性フイルムに
金属蒸着を施し、その蒸着面に接着層を介して紙
などの支持体を貼り合わせてなるものがあり、こ
のフイルム面上に食品など被加熱物を載せて電子
レンジにかけると、マイクロ波により前記金属蒸
着層（発熱体）が発熱し、食品などに焦げ目が付
き、食感を向上試みがなされていた。
Conventionally, this type of heat-generating packaging material has been made by applying metal vapor deposition to a heat-resistant film such as polyester film as a base material, and pasting a support such as paper to the vapor-deposited surface via an adhesive layer. When an object to be heated, such as food, is placed on the surface of this film and placed in a microwave oven, the metal vapor-deposited layer (heating element) generates heat due to the microwaves, resulting in browning of the food, and attempts have been made to improve the texture. Ta.
しかしながら、上記した従来の金属蒸着してな
る発熱体を備えた発熱包材では、その蒸着厚みを
かなり薄くする必要があり、かつその蒸着厚みが
変化した場合（薄膜状なのでズレが大きくなる可
能性がある）、その発熱効果が大きく変動し安定
した発熱量を得ることができなかつた。また加熱
する部分を限定するなどの場合、従来のアルミ蒸
着では一定方向の単純な模様しか付けられないこ
とから、発熱包材を加熱したい部分の形状に合わ
せて切り取つて別の基材に貼るという加工性の悪
い方法をとらなければならないという問題点があ
つた。
However, with the above-mentioned conventional heat-generating packaging material equipped with a heating element formed by vapor-deposited metal, it is necessary to reduce the thickness of the vapor-deposited material considerably, and if the thickness of the vapor-deposited material changes (because it is a thin film, there is a possibility that misalignment will become large). ), the heat generation effect fluctuated greatly and it was not possible to obtain a stable calorific value. In addition, when limiting the area to be heated, conventional aluminum vapor deposition can only create a simple pattern in a certain direction, so the heat-generating packaging material is cut to match the shape of the area to be heated and pasted onto another base material. There was a problem in that a method with poor workability had to be used.
本発明は、上記した従来の問題点を考慮してな
されたもので、ポリエステルなどの耐熱性フイル
ムや紙などからなる基材層と、強誘電体を主成分
とするインキを前記基材層に塗布してなる強誘電
層と、前記強誘電層を覆うポリエステルなどの耐
熱性フイルムからなる保護層とを備えたことを特
徴とする発熱包材を提供して、従来の問題点を解
消するものである。
The present invention has been made in consideration of the above-mentioned conventional problems, and includes a base material layer made of a heat-resistant film such as polyester, paper, etc., and an ink containing a ferroelectric material as a main component. Provided is a heat generating packaging material characterized by comprising a ferroelectric layer formed by coating, and a protective layer formed of a heat-resistant film such as polyester that covers the ferroelectric layer, thereby solving the conventional problems. It is.
本発明において、チタン酸バリウムをはじめと
する強誘電体は、マイクロ波を受けると、その誘
電率の高さにより、マイクロ波を吸収し高発熱
し、この強誘電体を主成分とするインキを基材層
に塗布してなる強誘電層が食品の表面を加熱する
ようになる。
In the present invention, when a ferroelectric material such as barium titanate receives microwaves, it absorbs the microwaves and generates a large amount of heat due to its high dielectric constant, and ink containing this ferroelectric material as a main component can be used. The ferroelectric layer coated on the base material layer heats the surface of the food.
つぎに、本発明を第１図と第２図に示す一実施
例に基づいて詳細に説明する。
Next, the present invention will be explained in detail based on an embodiment shown in FIGS. 1 and 2.
図中１は発熱包材で、該発熱包材１は、ポリエ
ステルフイルムなどの耐熱性フイルムや紙からな
る基材層２に強誘電層３を設け、そしてこの強誘
電層３をポリエステルフイルムなどの耐熱性フイ
ルムからなる保護層４で覆つてシート状に形成し
たものである。 In the figure, reference numeral 1 denotes a heat-generating packaging material. The heat-generating packaging material 1 has a ferroelectric layer 3 provided on a base layer 2 made of a heat-resistant film such as a polyester film or paper, and this ferroelectric layer 3 is made of a polyester film or the like. It is formed into a sheet shape and covered with a protective layer 4 made of a heat-resistant film.
上記強誘電層３は、強誘電体を主成分とするイ
ンキを塗布してなるもので、強誘電体としては例
えばチタン酸バリウムを用い、シルク印刷により
基材層２に塗布して設けたものである。 The ferroelectric layer 3 is formed by applying ink containing a ferroelectric as a main component, and the ferroelectric is formed by using barium titanate, for example, and applying it to the base layer 2 by silk printing. It is.
この構造の発熱包材１の発熱作用を説明する。
チタン酸バリウムをはじめとする強誘電体は、マ
イクロ波を受けると、その誘電率の高さにより、
マイクロ波を吸収し高発熱する。第２図に示すよ
うに、電子レンジＡ内にして被加熱物Ｂを発熱包
材１に載せてマイクロ波を照射した場合、マイク
ロ波Ｃが発熱包材１に当たると、強誘電層３の強
誘電体に対して前記して発熱の原理により被加熱
物Ｂとの接触部分を加熱し、焦げ目を付けたり食
品加工を促進して調理時間を短縮できるようにな
つている。 The heat generating effect of the heat generating packaging material 1 having this structure will be explained.
When ferroelectric materials such as barium titanate are exposed to microwaves, their high dielectric constant causes them to
Absorbs microwaves and generates high heat. As shown in FIG. 2, when an object to be heated B is placed in a microwave oven A and placed on a heat-generating packaging material 1 and microwaves are irradiated, when the microwave C hits the heat-generating packaging material 1, the ferroelectric layer 3 becomes stronger. The dielectric body heats the contact portion with the object to be heated B based on the principle of heat generation described above, thereby making it possible to brown the food and promote food processing, thereby shortening the cooking time.
なお、上記した一実施例にて、強誘電体を主成
分としたインキをシルク印刷で基材層に塗布した
が、前記インキの印刷方法はシルク印刷に限定さ
れるものではなく、グラビア印刷やオフセツト印
刷などの印刷方法を用いることができ、適宜に選
択できるものである。 In the above example, an ink containing ferroelectric as a main component was applied to the base material layer by silk printing, but the method of printing the ink is not limited to silk printing, and may include gravure printing, gravure printing, etc. Printing methods such as offset printing can be used and can be selected as appropriate.
以上説明したように、本発明によれば、発熱包
材は、耐熱性フイルムや紙などからなる基材層
と、強誘電体を主成分とするインキを前記基材層
に塗布してなる強誘電層と、前記強誘電層を覆う
ポリエステルフイルムなどの耐熱性フイルムから
なる保護層とを備えてなるものであることから、
強誘電層にイクロ波が達すると、強誘電層が発熱
し、発熱包材全面からほぼムラなく発熱して食品
の表面を均一に乾燥させたり焦げ目を付けたりす
ることができ、食品の食感を向上させることがで
きる。また強誘電体の含有量やインキの塗布方法
が適宜に選択できるようになり、複雑な模様の発
熱部分を備える発熱包材を成形する場合（すなわ
ち複雑な焦げ目などを付ける場合）や小さな発熱
包材を形成する場合でも歩留りよく経済的に対応
できるとともに、インキのふとぶぶんの設定によ
り、食品の所望部分が加熱できる発熱包材が容易
に得られるなど、実用性にすぐれた効果を奏する
ものである。
As explained above, according to the present invention, the heat-generating packaging material has a base material layer made of a heat-resistant film, paper, etc., and a strong material made by coating the base material layer with ink containing a ferroelectric material as a main component. Since it comprises a dielectric layer and a protective layer made of a heat-resistant film such as a polyester film that covers the ferroelectric layer,
When microwave waves reach the ferroelectric layer, the ferroelectric layer generates heat, which generates heat almost evenly from the entire surface of the heating packaging material, making it possible to uniformly dry or brown the surface of the food, improving the texture of the food. can be improved. In addition, it is now possible to select the ferroelectric content and ink application method as appropriate, and it is now possible to mold heat-generating packaging materials with complex patterns of heat-generating parts (i.e., when creating complex brown marks), and when forming small heat-generating packages. It can be used economically with high yield even when forming food materials, and by setting the ink to be thick, it is easy to obtain heat-generating packaging materials that can heat the desired part of the food, and has excellent practical effects. It is.
第１図は一実施例を断面で示す説明図、第２図
は一実施例の使用状態を示す説明図である。
１……発熱包材、２……基材、３……強誘電
層、４……保護層。
FIG. 1 is an explanatory diagram showing an embodiment in cross section, and FIG. 2 is an explanatory diagram showing the usage state of the embodiment. 1... Heat generating packaging material, 2... Base material, 3... Ferroelectric layer, 4... Protective layer.
Claims (1)
からなる基材層と、強誘電体を主成分とするイン
キを前記基材層に塗布してなる強誘電層と、前記
強誘電層を覆うポリエステルなどの耐熱性フイル
ムからなる保護層とを備えたことを特徴とする発
熱包材。 ２ 上記強誘電層は、チタン酸バリウムを主成分
とするインキを基材層に塗布してなることを特徴
とする発熱包材。[Scope of Claims] 1. A base layer made of a heat-resistant film such as polyester or paper, a ferroelectric layer formed by coating the base layer with ink containing a ferroelectric as a main component, and a ferroelectric A heat-generating packaging material characterized by comprising a protective layer made of a heat-resistant film such as polyester that covers the layer. 2. A heat generating packaging material, wherein the ferroelectric layer is formed by applying ink containing barium titanate as a main component to the base material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62034268A JPS63202441A (en) | 1987-02-17 | 1987-02-17 | Heat-generating packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62034268A JPS63202441A (en) | 1987-02-17 | 1987-02-17 | Heat-generating packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63202441A JPS63202441A (en) | 1988-08-22 |
| JPH0422430B2 true JPH0422430B2 (en) | 1992-04-17 |
Family
ID=12409415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62034268A Granted JPS63202441A (en) | 1987-02-17 | 1987-02-17 | Heat-generating packaging material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63202441A (en) |
-
1987
- 1987-02-17 JP JP62034268A patent/JPS63202441A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63202441A (en) | 1988-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5338921A (en) | Method of distributing heat in food containers adapted for microwave cooking and novel container structure | |
| US4963424A (en) | Microwave heating material | |
| US5039364A (en) | Method of making selective microwave heating material | |
| US5239153A (en) | Differential thermal heating in microwave oven packages | |
| US4962293A (en) | Microwave susceptor film to control the temperature of cooking foods | |
| US4865921A (en) | Microwave interactive laminate | |
| US4267420A (en) | Packaged food item and method for achieving microwave browning thereof | |
| US4258086A (en) | Method of reproduction metallized patterns with microwave energy | |
| JP2718685B2 (en) | Method for producing microwave acting body | |
| US4230924A (en) | Method and material for prepackaging food to achieve microwave browning | |
| CA1313231C (en) | Microwave heating | |
| JPH06502740A (en) | microwave sensitive device | |
| DE60007354D1 (en) | PATTERNED MICROWAVE SECTOR | |
| AU606135B2 (en) | Microwave interactive laminate and process for producing microwave laminate | |
| EP0563235A1 (en) | Temperature controlled susceptor structure | |
| JP2000142825A (en) | Container for heating with microwave oven | |
| WO1988005249A1 (en) | Microwave heating | |
| US5310976A (en) | Microwave heating intensifier | |
| CN1288434A (en) | Microwave food scorch shielding | |
| JPH0422430B2 (en) | ||
| EP0365247A3 (en) | Container and blank for, and method of, microwave heating | |
| ES2090084T3 (en) | METHOD AND APPARATUS FOR PRODUCING LAMINAR MATERIAL SUSCEPTOR FOR MICROWAVES. | |
| JP2001019062A (en) | Packaging sheet for cooking by microwave oven | |
| JPH0940031A (en) | Packaging sheet for high-frequency heat cooking | |
| JPH0723251Y2 (en) | Heating sheet for microwave oven |