JPH0456614B2 - - Google Patents
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- Publication number
- JPH0456614B2 JPH0456614B2 JP57122608A JP12260882A JPH0456614B2 JP H0456614 B2 JPH0456614 B2 JP H0456614B2 JP 57122608 A JP57122608 A JP 57122608A JP 12260882 A JP12260882 A JP 12260882A JP H0456614 B2 JPH0456614 B2 JP H0456614B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- rice
- moisture
- lid
- absorbing
- 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
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Description
【発明の詳細な説明】
本発明は、炊飯器具及び容器の結露防止方法に
関するものであり、詳しくは炊飯が発生する水蒸
気による炊飯器具及び容器のフタ等への結露を、
水溶性樹脂を部分的に架橋した水不溶性で吸水・
保水性を有する樹脂を介在させたシートを、炊飯
器具及び容器内に介在させる事を特徴とする結露
防止方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing condensation on rice cookers and containers, and more specifically, to prevent condensation on lids of rice cookers and containers caused by water vapor generated during cooking.
Water-absorbing and water-insoluble material made by partially cross-linking water-soluble resin.
The present invention relates to a dew condensation prevention method characterized by interposing a sheet containing a water-retaining resin inside a rice cooker and a container.
うるち米に限らず、もち米、麦等を通常の釜に
より炊いた場合、炊飯時の熱により炊き上がつた
飯から水蒸気が発生し、釜のふた、あるいは、釜
より移した場合においては、おひつのふた、また
弁当箱等のふたに結露をする事は、飯が温かい限
り常に見られる現象である。 When cooking not only non-glutinous rice but also glutinous rice, barley, etc. in a regular pot, steam is generated from the cooked rice due to the heat during cooking, and if the rice is removed from the pot or removed from the pot, the ohitsu Condensation on the lids of rice cookers, bento boxes, etc. is a phenomenon that is always observed as long as the food is warm.
この結露は飯が温かい程多いため、炊き上がり
の飯等では特に多く、炊飯器具のふたに付着した
結露水が過剰となり、飯上に落下し、飯が水ぽく
なり味覚低下を招く場合も多々ある。また、ふた
を開けた場合に、結露水がテーブルへこぼれた
り、衣服を濡らしたり等取扱い上の不手際が多く
見られる。また、弁当箱等の場合は、結露水が副
食物（おかず）上に落下し、飯、副食物共に味覚
の低下を来たす場合が多く、従来より結露が問題
であり、その結露防止方法が望まれていた。 The warmer the rice, the more this condensation occurs, so it is especially common when the rice is already cooked. Excessive condensation water adheres to the lid of the rice cooker and falls onto the rice, making the rice watery and often resulting in a loss of taste. be. In addition, when the lid is opened, condensed water spills onto the table, clothes get wet, and other mishandling is common. In addition, in the case of bento boxes, etc., condensed water often falls onto side dishes, resulting in a loss of taste for both rice and side dishes.Condensation has long been a problem, and a method to prevent condensation is desired. It was rare.
現在、これらを防止する方法としては、特にお
ひつに移した場合などは、乾燥させたふきんを飯
とふたとの中間におき、水蒸気を吸収させる方法
が従来から行なわれ一般的である。 Currently, a common method to prevent these problems is to place a dry dish towel between the rice and the lid to absorb water vapor, especially when the rice is transferred to a rice bowl.
しかしながら炊きたての飯においては水蒸気も
多く発生し、綿から成るふきんの吸水性・吸湿性
だけでは限度があり、過剰水分は吸収しきれな
い。 However, freshly cooked rice also generates a lot of water vapor, and there is a limit to the water absorption and hygroscopicity of cotton dish towels, which cannot absorb excess moisture.
これは綿布などに限らず、プラスチツク性の通
称スポンジと言われるものを用いても同様であ
り、かつ、それらのものは、繰り返し使用される
為に汚れが除去できず、不衛生となりがちであ
る。 This is not limited to cotton cloth, but also applies to plastic sponges, which tend to be unsanitary because dirt cannot be removed because they are used repeatedly. .
そこで、本発明は、以上の様な従来の欠点を吸
水性樹脂単体または吸水性樹脂と多孔質無機粉末
との混合物を、少なくとも片面通気性層である積
層体の中間層とした水分吸収性シートを、炊飯器
具及び容器内に介在させ、飯より発生する水蒸気
を水分として吸収除去する事により解決したもの
である。 Therefore, the present invention solves the above-mentioned drawbacks of the conventional water-absorbing sheet by using a water-absorbing resin alone or a mixture of a water-absorbing resin and a porous inorganic powder as an intermediate layer of a laminate that is a breathable layer on at least one side. This problem was solved by interposing the water vapor in the rice cooker and container to absorb and remove the water vapor generated from the rice as water.
以下、本発明を詳細に述べる。 The present invention will be described in detail below.
本発明に用いる水分吸収シートは、少なくとも
片面が通気性層を有する積層体の中間に水溶性樹
脂を部分的に架橋した水不溶性で吸水・保水性の
樹脂粉末単体またはこの樹脂粉末と多孔質無機粉
末との混合物から成る吸水性樹脂層を設けて成る
構成である。 The moisture-absorbing sheet used in the present invention is a water-insoluble water-absorbing/water-retaining resin powder made by partially crosslinking a water-soluble resin in the middle of a laminate having an air-permeable layer on at least one side, or a porous inorganic resin powder combined with this resin powder. This structure includes a water-absorbing resin layer made of a mixture with powder.
吸水性樹脂とは、水及び水を含む溶媒を良く吸
収し、体積を増やしゲル状または、固体状に保持
するものであり、具体的には、デンプン−アクリ
ル酸ソーダグラフト重合体、デンプン−アクリロ
ニトリルグラフト重合体の加水分解物、一部架橋
されたデンプン−ポリ（メタ）アクリル酸共重合
物、一部架橋されたデンプン−ポリメタクリル酸
メチルの加水分解物等、デンプン−グラフト重合
系のもの、あるいはメタクリル酸メチル−酢酸ビ
ニル共重合体の加水分解物に代表される架橋合成
樹脂系のもの等があげられる。 A water-absorbing resin is one that absorbs water and water-containing solvents well, increases volume, and maintains it in a gel or solid state. Hydrolysates of graft polymers, partially crosslinked starch-poly(meth)acrylic acid copolymers, partially crosslinked starch-polymethyl methacrylate hydrolysates, starch-graft polymers, Alternatively, crosslinked synthetic resins such as a hydrolyzate of methyl methacrylate-vinyl acetate copolymer may be mentioned.
また、混合する多孔質無機粉末としては、例え
ばゼオライト、パーライト、ケイ酸カルシウム等
吸水しても体積を変えずに微細孔中に液体を吸収
保持するものである。 Porous inorganic powders to be mixed include, for example, zeolite, pearlite, calcium silicate, and the like, which absorb and retain liquid in fine pores without changing its volume even when it absorbs water.
さらに、この吸収性を有するシートの通気性層
とは、紙、布、不織布等、水蒸気を多量に通す性
質のものであれば、特に限定されない。 Further, the breathable layer of the absorbent sheet is not particularly limited as long as it is made of paper, cloth, nonwoven fabric, or the like that allows a large amount of water vapor to pass through.
次にこの水分吸収シートの吸水・保水量につい
て説明する。 Next, the water absorption and water retention capacity of this moisture absorbing sheet will be explained.
水分吸収シートは中間層に吸水性樹脂を有して
いる為、吸水性樹脂量により吸水・保水性は異な
るが、一般的に吸水性樹脂は、自重の数百倍から
千倍以上の吸水性を有するため、炊飯器具及び容
器の結露防止に使用するには、多量に吸水性樹脂
を使用する必要はなく、水分吸収シート１m2当り
数ｇの使用量で十分目的は達せられる。 Since the moisture-absorbing sheet has a water-absorbing resin in the middle layer, its water absorption and water retention properties differ depending on the amount of water-absorbing resin, but generally water-absorbing resin has a water absorption capacity of several hundred to 1,000 times its own weight. Therefore, in order to prevent condensation on rice cookers and containers, it is not necessary to use a large amount of water-absorbing resin, and a few grams per square meter of water-absorbing sheet is enough to achieve the purpose.
以上、本発明に使用する、水分吸収シートにつ
いて説明したが、次にその使用方法について説明
する。 The moisture-absorbing sheet used in the present invention has been described above, and now how to use it will be described.
現在、電気釜等においては、飯を炊くだけでな
く、その後の保温を与える容器として用いられる
場合が多い。また、ガス釜、ナベ等で炊飯した場
合は、別の保温器等に移しおひつ替りとして飯を
保存する場合が一般的である。いずれの場合にお
いても炊飯器具や保温器のふたの内側に、水分吸
収シートの通気性層を下方に向けセツトするだけ
で良い。 Currently, electric rice cookers and the like are often used not only to cook rice, but also to keep it warm afterwards. Furthermore, when rice is cooked in a gas pot, pot, etc., it is common to transfer the rice to another heat insulator or the like and store it as a refill. In either case, all you need to do is place the moisture-absorbing sheet with the breathable layer facing downward inside the lid of the rice cooker or warmer.
また、外ぶたに内ぶたが付属している場合にお
いては、外ぶたと内ぶたとの間に水分吸収シート
をはさみセツトしても構わない。 Further, in the case where an inner lid is attached to the outer lid, a moisture absorbing sheet may be sandwiched and set between the outer lid and the inner lid.
さらに、駅や弁当屋等で販売されている、プラ
スチツク性容器を主体とした弁当箱においては、
ふたと身のかん合部に凹状の構を設け、その構に
水分吸収シートの端をセツトし、ふたと水分吸収
シートが一体となつた形で用いても、十分結露防
止の目的は達せられる。 Furthermore, in bento boxes mainly made of plastic containers sold at stations and bento shops,
The purpose of preventing condensation can be sufficiently achieved by providing a concave structure at the joint between the lid and the body, and setting the edge of the moisture-absorbing sheet in this structure, so that the lid and moisture-absorbing sheet are used as one unit. .
以上説明した様に、炊飯器具及び容器に、吸水
性樹脂層を中間層として有する少なくとも片面が
通気性層から成る水分吸収シートを介在させた場
合、飯からの水蒸気を水分として水分吸収シート
が完全に吸水・保水し、ふた内面の結露が完全に
防止され、ふたを開けた場合の結露による取扱上
の不手際が完全に解消された。 As explained above, when a rice cooker and a container are interposed with a moisture absorbing sheet consisting of a water absorbent resin layer as an intermediate layer and a breathable layer on at least one side, the moisture absorbing sheet completely absorbs water vapor from the rice and uses it as moisture. It absorbs and retains water, completely preventing condensation on the inner surface of the lid, and completely eliminating clumsiness in handling caused by condensation when the lid is opened.
以下、実施例を述べる。 Examples will be described below.
実施例 １
白米３合を電気釜により炊飯し、保温器に移し
た場合の結露状態を本発メと何も施こさない従来
の保温器で比較した。Example 1 Three cups of white rice were cooked in an electric pot and transferred to a heat insulator, and the dew condensation was compared between the present method and a conventional heat insulator without any cooking.
（本発明による方法）
二軸延伸ポリプロピレンフイルム（20μ）／吸
水性樹脂粉末（3.0ｇ／m2塗布）／格子状に設け
たウレタン系接着剤／加工原紙（60ｇ／m2）より
なる水分吸収シートを保温器の外ぶたと内ぶたと
の間にセツトした方法。(Method according to the present invention) Moisture absorption made of biaxially stretched polypropylene film (20 μ) / water-absorbing resin powder (3.0 g/m 2 coating) / urethane adhesive arranged in a grid pattern / processed base paper (60 g/m 2 ) A method in which a sheet is placed between the outer and inner lids of a heat insulator.
（従来の方法）
炊飯器より保温器に炊飯した白米３合を移した
のみの方法。(Conventional method) A method that only involves transferring 3 cups of cooked white rice from a rice cooker to a warmer.
（結果）
保温器に移し変えてより５時間後にふたを開け
本発明による方法と、従来の方法との結露状態を
比較したところ、従来のままの保温器には外ぶた
及び内ぶたの内面に飯より発生した水蒸気が水滴
として、約15ｇ結露しており、一部がこぼれ落ち
テーブル上を汚したが、水分吸収シートを用いた
本発明による方法では、水分吸収シートが結露水
を吸収・保水していたため、ふたを開けた時に何
ら不手際は生じなかつた。(Results) When we opened the lid 5 hours after transferring to the heat insulator and compared the state of dew condensation between the method of the present invention and the conventional method, we found that the conventional heat insulator had no condensation on the inner surface of the outer and inner lids. Approximately 15g of water vapor generated from the rice condensed as water droplets, and some of it spilled out and stained the tabletop, but in the method of the present invention using a moisture-absorbing sheet, the moisture-absorbing sheet absorbs and retains the condensed water. There was no mistake when opening the lid.
なお、水分吸収シートは、約20ｇの水分を吸
収・保水していた。 The moisture-absorbing sheet absorbed and retained approximately 20g of moisture.
実施例 ２
プラスチツク性弁当箱における結露の状態を、
本発明による方法と何も施こさない従来の弁当箱
で比較した。Example 2 The state of condensation in a plastic lunch box was
A comparison was made between the method according to the present invention and a conventional bento box without any treatment.
（本発明による方法）
二軸延伸ポリプロピレンフイルム（20μ）／吸
水性樹脂粉末（3.5ｇ／m2）／格子状に設けたウ
レタン系接着剤／ナイロン不織布（40ｇ／m2）よ
りなる水分吸収シートを弁当箱のフタにセツトし
た方法。(Method according to the present invention) Moisture-absorbing sheet made of biaxially stretched polypropylene film (20 μ) / water-absorbing resin powder (3.5 g/m 2 ) / urethane adhesive arranged in a grid pattern / nylon nonwoven fabric (40 g/m 2 ) How to set it on the lid of a bento box.
なお、水分吸収シートは、弁当箱のフタと身が
かん合する部分を凹状に成形し構を形成させ、そ
の構にはめ込む様にセツトした。 The moisture-absorbing sheet was formed into a concave shape at the portion where the lid and body of the lunch box fit together, and the sheet was set so as to fit into the structure.
（従来の方法）
容器本体とフタより成る通常の弁当箱
（結果）
本発明による方法では、水分吸収シートが飯よ
り発生する水蒸気を完全に水分として吸収・保水
し、結露水の落下による、おかず等への味覚の影
響はなく、また、結露水の落下による衣服への水
汚れもなかつたが、従来のままの弁当箱はフタ内
面の結露が著しく、その水分がおかずへ落下する
など味覚の劣化が多く認められた。(Conventional method) A normal bento box consisting of a container body and a lid (Result) In the method according to the present invention, the moisture-absorbing sheet completely absorbs and retains the water vapor generated from the rice as water, and the side dishes are separated by falling condensed water. There was no effect on taste, and there was no water stains on clothes due to falling condensed water, but the conventional bento box had a lot of condensation on the inside of the lid, and the moisture fell onto the side dishes, causing an impact on taste. Much deterioration was observed.
Claims (1)
中間に水溶性樹脂を部分的に架橋した水不溶性で
吸水・保水性の樹脂粉末単体、またはこの樹脂粉
末と多孔質無機粉末との混合物のいずれからなる
吸水性樹脂層を設けた水分吸収シートを、炊飯器
具及び容器内に介在させた事を特徴とする炊飯器
具及び容器の結露防止方法。1 Either a single water-insoluble water-absorbing/water-retaining resin powder obtained by partially crosslinking a water-soluble resin in the middle of a laminate having a breathable layer on at least one side, or a mixture of this resin powder and a porous inorganic powder. A method for preventing dew condensation in rice cookers and containers, characterized by interposing a moisture absorbing sheet provided with a water absorbent resin layer inside the rice cookers and containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12260882A JPS5911814A (en) | 1982-07-14 | 1982-07-14 | Rice cooking utensil and prevention of dewing of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12260882A JPS5911814A (en) | 1982-07-14 | 1982-07-14 | Rice cooking utensil and prevention of dewing of container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5911814A JPS5911814A (en) | 1984-01-21 |
| JPH0456614B2 true JPH0456614B2 (en) | 1992-09-09 |
Family
ID=14840149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12260882A Granted JPS5911814A (en) | 1982-07-14 | 1982-07-14 | Rice cooking utensil and prevention of dewing of container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911814A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6112722U (en) * | 1984-06-29 | 1986-01-25 | 凸版印刷株式会社 | hygroscopic sheet |
| CN109475245B (en) * | 2016-07-21 | 2021-07-06 | 三菱电机株式会社 | heating cooker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4222922Y1 (en) * | 1965-05-06 | 1967-12-26 | ||
| JPS445302Y1 (en) * | 1967-10-24 | 1969-02-26 |
-
1982
- 1982-07-14 JP JP12260882A patent/JPS5911814A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5911814A (en) | 1984-01-21 |
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