JPS5822733Y2 - heating structure - Google Patents

heating structure

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Publication number
JPS5822733Y2
JPS5822733Y2 JP1978143391U JP14339178U JPS5822733Y2 JP S5822733 Y2 JPS5822733 Y2 JP S5822733Y2 JP 1978143391 U JP1978143391 U JP 1978143391U JP 14339178 U JP14339178 U JP 14339178U JP S5822733 Y2 JPS5822733 Y2 JP S5822733Y2
Authority
JP
Japan
Prior art keywords
water
heat
packaging material
air permeability
pores
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
Application number
JP1978143391U
Other languages
Japanese (ja)
Other versions
JPS5559616U (en
Inventor
良介 菅沼
Original Assignee
東洋インキ製造株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 東洋インキ製造株式会社 filed Critical 東洋インキ製造株式会社
Priority to JP1978143391U priority Critical patent/JPS5822733Y2/en
Publication of JPS5559616U publication Critical patent/JPS5559616U/ja
Application granted granted Critical
Publication of JPS5822733Y2 publication Critical patent/JPS5822733Y2/en
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は水および空気との接触によって化学的に反応し
て発熱する組成物を内蔵した発熱構造体に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heat generating structure containing a composition that chemically reacts and generates heat upon contact with water and air.

従来から水および空気との接触により化学的に反応して
発熱する組成物は公知であり、例えば特開昭50−40
477号公報には鉄粉のような金属片と金属塩化物とか
らなる組成物、同50−75582号公報には金属粉と
重亜硫酸塩とからなる組成物などが知られている。
Compositions that chemically react and generate heat upon contact with water and air have been known, for example, as disclosed in Japanese Patent Application Laid-open No. 50-40.
A composition comprising a metal piece such as iron powder and a metal chloride is known in Japanese Patent No. 477, and a composition comprising a metal powder and a bisulfite is known in Japanese Patent No. 50-75582.

これらの発熱組成物を用いて、目的とする適度な発熱温
度および発熱持続時間を得るためには、発熱組成物への
空気の供給を制御する必要がある。
In order to obtain the desired exothermic temperature and duration using these exothermic compositions, it is necessary to control the supply of air to the exothermic compositions.

そのための方法として、透気度の調節された包材に発熱
組成物を内蔵した発熱構造体が使用上好ましいと考えら
れている。
As a method for this purpose, it is considered preferable to use a heat-generating structure in which a heat-generating composition is incorporated in a packaging material whose air permeability is controlled.

透気度を調節するための包材としては紙、織布、不織布
などが考えられるが人体の保温、加温治療用としての肌
触り、耐水性、機械的強度、あるいはコストなどの面か
ら織布もしくは不織布が良好であるが、これらの布だけ
では透気度が大き過ぎること、および内容物の飛散など
の問題があり、このため現在工業的には実開昭50−9
7289号公報において提案されているように、不織布
と有孔プラスチックフィルムとを併用する方法、あるい
は実開昭51−23769号公報に提案されているよう
に織布もしくは不織布に部分的に樹脂コート層を設ける
方法が望ましいと考えられている。
Paper, woven fabrics, non-woven fabrics, etc. can be used as packaging materials to adjust the air permeability, but woven fabrics are preferable due to reasons such as keeping the human body warm, texture for heating treatment, water resistance, mechanical strength, and cost. Alternatively, non-woven fabrics are good, but these fabrics alone have problems such as too high air permeability and scattering of the contents.
As proposed in Japanese Patent No. 7289, a method of using a nonwoven fabric and a perforated plastic film in combination, or a method of partially applying a resin coating layer to a woven fabric or nonwoven fabric as proposed in Japanese Utility Model Application Publication No. 51-23769. It is considered desirable to provide a

しかしながら、本考案者の研究によると、金属粉の酸化
反応を利用して水および空気と接触せしめて発熱する組
成物においては、単に包材の透気度のみを制禦すれば所
望の発熱温度および持続時間が得られるということでは
ないという新規な知見が得られた。
However, according to the inventor's research, in a composition that generates heat when brought into contact with water and air by utilizing the oxidation reaction of metal powder, the desired exothermic temperature can be achieved by simply controlling the air permeability of the packaging material. A new finding was obtained that it does not mean that the amount of time and duration can be obtained.

すなわち、上記発熱組成物においては水の添加量を多く
すると系全体がペースト状に近くなり、この結果空気が
系の内部にまで接触せずに所望の発熱特性が得られず、
また、包材を通して水かにじみ出てくるという欠点があ
り、逆に、水の量を少なくすると空気との接触は十分で
あっても金属粉が酸化されるに十分の水が不足し、発熱
持続時間が短かくなって実際的でなくなる。
That is, in the above exothermic composition, when the amount of water added is increased, the entire system becomes almost paste-like, and as a result, air does not come into contact with the inside of the system, making it impossible to obtain desired exothermic characteristics.
Another drawback is that water oozes through the packaging material, and conversely, if the amount of water is reduced, even if there is sufficient contact with the air, there will not be enough water to oxidize the metal powder, resulting in continued heat generation. Time becomes shorter and less practical.

このように、水の使用量はかなり重要なファクターとな
る。
Thus, the amount of water used is a very important factor.

また、この水の量は使用時に発熱温度が高くなるにつれ
て系外への蒸散が激しくなるが、温度だけではなく包材
の透気度にも大きく依存し、透気度が増大するにつれて
蒸散も激しくなる。
In addition, the amount of this water evaporates out of the system as the heat generation temperature increases during use, but it depends not only on the temperature but also on the air permeability of the packaging material, and as the air permeability increases, transpiration increases. It gets intense.

本考案者等は必要十分な空気透過性を有し、水の蒸散が
少ない包材を開発すべく研究した結果、細孔を数多く、
しかも包材の全面にわたって設けることにより、全体の
透気度を減らしても空気の供給は不足せず、しかも水の
蒸散を防ぐことができることを発見した。
The inventors of the present invention conducted research to develop a packaging material that has sufficient air permeability and reduces water transpiration, and found that it has a large number of pores,
Moreover, they discovered that by providing it over the entire surface of the packaging material, there is no shortage of air supply even if the overall air permeability is reduced, and water evaporation can be prevented.

この細孔はできるだけ小さく、0.2myM以下、望ま
しくは0.1m4以下程度である。
The pores are as small as possible, about 0.2 myM or less, preferably about 0.1 m4 or less.

しかしながら、このような細孔を全面にわたって設けよ
うとする場合、従来公知の包材の製造方法では不可能で
ある。
However, when attempting to provide such pores over the entire surface, it is impossible with conventionally known packaging material manufacturing methods.

なぜならば、薄いプラスチックフィルムにこのような細
孔を設けることはフィルムの強度がないために機械の機
構上無理があり、万一このような細孔を設けた薄いプラ
スチックフィルムが得られたとしても、不織布との積層
工程で熱がめいり、細孔は目詰まりするか、少なくとも
一定した透気度の包材は得られない。
This is because it is impossible to create such pores in a thin plastic film due to the lack of strength of the film, and even if a thin plastic film with such pores could be obtained. During the lamination process with the nonwoven fabric, heat is generated and the pores become clogged, or at least a packaging material with constant air permeability cannot be obtained.

また、織布もしくは不織布にコーティングして細孔を残
す方法も精密な印刷技術を駆使しても極めて困難である
Furthermore, it is extremely difficult to coat woven or nonwoven fabrics to leave pores, even if precise printing techniques are used.

本考案は上記のような問題点を解決するため鋭意研究の
結果なされたものである。
The present invention was developed as a result of intensive research to solve the above-mentioned problems.

すなわち本考案は、水および空気との接触によって発熱
する組成物を、少なくとも一面は通気性である包材を用
いて封入せしめてなる扁平状発熱構造体において、該通
気性包材として、織布もしくは不織布と合成樹脂層とを
密着積層せしめたシートの全面にわたって実質上均一に
平均0.2 ms以下の細孔を穿つことによって、5な
いし200 cc/cT1.mi nの範囲に透気度を
調節した包材を用いることを特徴とする前記構造体に関
する。
That is, the present invention provides a flat heat-generating structure in which a composition that generates heat upon contact with water and air is enclosed using a packaging material whose at least one side is air permeable, in which a woven fabric is used as the breathable packaging material. Alternatively, by punching pores of 0.2 ms or less on average substantially uniformly over the entire surface of a sheet in which a nonwoven fabric and a synthetic resin layer are laminated in close contact with each other, pores of 5 to 200 cc/cT1. The present invention relates to the structure described above, characterized in that a packaging material whose air permeability is adjusted to a range of min.

本考案において、織布もしくは不織布と合成樹脂とを密
着積層せしめたシートは機械的強度が太きいために細孔
を穿つ工程で例等作業上の問題点がなく、このようにし
て細孔を全面にわたって設けた透気性包材を用いた加熱
構造体は以下のような工業上のメリットがある。
In the present invention, the sheet made of woven fabric or non-woven fabric and synthetic resin is laminated in close contact with each other, and has a high mechanical strength, so there is no problem during the process of making pores, and the pores can be formed in this way. A heating structure using an air-permeable wrapping material provided over the entire surface has the following industrial advantages.

(1)細孔を穿つ針の植え方で容易に透気度のコントロ
ールができる。
(1) Air permeability can be easily controlled by planting needles that puncture pores.

(2)大きな孔を設けた場合に比較して少ない透気度で
あっても均一に十分空気が供給されるため、発熱特性に
悪影響を与えない。
(2) Even if the air permeability is lower than that in the case where large holes are provided, sufficient air is supplied uniformly, so the heat generation characteristics are not adversely affected.

(3)透気度を小さくすることによって水の蒸散が押え
られ、所望の温度以上での発熱持続時間が長くなる。
(3) By reducing the air permeability, water evaporation is suppressed, and the duration of heat generation at a desired temperature or higher becomes longer.

(4)水の蒸散が少ないため、人体に適用した場合に嫌
われる湿った感じを与えない。
(4) Since there is little water transpiration, it does not give the unpleasant damp feeling when applied to the human body.

(5)細孔であるために発熱組成物が包材を通して飛散
しにくい。
(5) Because of the pores, the exothermic composition is unlikely to scatter through the packaging material.

(6)細孔であるために、ヒートシール性が阻害されず
、穿孔時に見当合せをする煩雑な工程が不要である。
(6) Because of the pores, heat-sealability is not inhibited, and a complicated process of registering the holes during drilling is unnecessary.

本考案における発熱性組成物としては、水および空気の
存在により発熱するもので、金属粉末単独あるいは金属
粉末と反応助剤、必要に応じて保水剤等からなる。
The exothermic composition in the present invention generates heat in the presence of water and air, and is composed of metal powder alone or metal powder, a reaction aid, and if necessary, a water retention agent.

金属粉末としては、鉄・銅・亜鉛・錫・アルミニウム・
鉛・ニッケル・コバルト・マンガン・カドミウム等の金
属体または、これらの合金の微粉末が用いられる。
Metal powders include iron, copper, zinc, tin, aluminum,
Metal bodies such as lead, nickel, cobalt, manganese, and cadmium, or fine powders of alloys thereof are used.

反応助剤は、Na C13t Mg C4t K C1
1、F e 804 、F e2(804)3 tEe
CA’2 tFeC4tミョウバン、CuBr2.Cu
S041Cu C12等から選ばれる。
The reaction aid is Na C13t Mg C4t K C1
1, F e 804 , F e2 (804) 3 tEe
CA'2 tFeC4t alum, CuBr2. Cu
Selected from S041Cu C12, etc.

このものも微粉が好ましい。This material is also preferably a fine powder.

また保水剤は、水を保持して金属粉末表面が水でおおわ
れ空気との接触を不良にしないようにし、また水を成分
であり、活性炭、シリカゲル、アルミナ、木粉等が有効
に用いられる。
The water retention agent retains water to prevent the surface of the metal powder from being covered with water and causing poor contact with the air, and contains water as an ingredient, and active carbon, silica gel, alumina, wood powder, etc. are effectively used.

なお、これらのものは、吸臭剤としての役割をも兼ね備
えるため好ましい。
In addition, these substances are preferable because they also serve as a deodorant.

更に、金属粉末、反応助剤、保水剤のほかに発熱性組成
物には、蓄熱剤、粘結剤等その他の添加剤を必要に応じ
て加えることができる。
Furthermore, in addition to the metal powder, reaction aid, and water retention agent, other additives such as a heat storage agent and a binder can be added to the exothermic composition as necessary.

また本考案において水は、水単独で用いることが発熱性
において好ましいが、水にグリセリン等のアルコールあ
るいは、他の有機溶剤を加えることもでき、特にアルコ
ールは、酷寒時にも凍らないようにすることができ、そ
の添加が可能である。
In addition, in the present invention, it is preferable to use water alone in terms of exothermic properties, but alcohol such as glycerin or other organic solvents can also be added to the water.In particular, alcohol should be used to prevent freezing even in extremely cold weather. and its addition is possible.

本考案において、水は金属粉末と接触しておくと空気の
不存在下においても保存時に反応を起すために、使用時
に水を注入するか、予め隔離包装し、使用時にその隔離
を解除して水を供給した方がよい。
In the present invention, if water comes into contact with metal powder, it will cause a reaction during storage even in the absence of air. It is better to provide water.

以下図面によって本考案を具体的に説明する。The present invention will be explained in detail below with reference to the drawings.

第1図は本考案に係わる発熱構造体に用いる透気量調節
された包材の拡大断面図、第2図は発熱構造体の断面図
を示す。
FIG. 1 is an enlarged cross-sectional view of a packaging material with controlled air permeability used in a heat-generating structure according to the present invention, and FIG. 2 is a cross-sectional view of the heat-generating structure.

第1図において、織布もしくは不織布1と合成樹脂層2
とを密着積層せしめたシート3に細孔4が穿設される。
In FIG. 1, a woven fabric or non-woven fabric 1 and a synthetic resin layer 2
Pores 4 are formed in the sheet 3 in which these are laminated in close contact with each other.

織布もしくは不織布1としては、たとえば、ナイロン、
ビニロン、ポリエステル、レーヨン、アセテート、アク
リル、ポリエチレン、ポリプロピレン、ポリ塩化ビニル
等の人工繊維、綿、麻、絹等の天然繊維から選ばれる1
種または2種以上の素材を用いて得られる織布もしくは
不織布が適時使用され、これらの布はフラジール型法通
気試験機で測定される透気度が100cc/ff1.m
in〜8000CC/C11l 、minの範囲にある
ことが好ましく、透気度が大きいと粉体である発熱組成
物が飛散することがあり好ましくない。
As the woven fabric or non-woven fabric 1, for example, nylon,
1 selected from artificial fibers such as vinylon, polyester, rayon, acetate, acrylic, polyethylene, polypropylene, and polyvinyl chloride, and natural fibers such as cotton, hemp, and silk.
Woven or non-woven fabrics obtained using one or more types of materials are used as appropriate, and these fabrics have an air permeability of 100 cc/ff1. m
It is preferable that the air permeability is in the range of in to 8000 CC/C11l, min. If the air permeability is large, the exothermic composition in the form of powder may scatter, which is not preferable.

合成樹脂層2としては、たとえばポリエチレン、ポリプ
ロピレン、エチレン−酢酸ビニル共重合体、エチレン−
酢酸ビニル共重合体ケン化物、ポリスチレン、ナイロン
、ポリエステル、ポリウレタン、ポリ塩化ビニル、ポリ
塩化ビニリデン等から選ばれる1種または2種以上の樹
脂の混合物から成る単一層として用いられるが、目的に
応じて2層以上の樹脂層として用いることもでさる。
Examples of the synthetic resin layer 2 include polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and ethylene-vinyl acetate copolymer.
It is used as a single layer consisting of one or a mixture of two or more resins selected from saponified vinyl acetate copolymer, polystyrene, nylon, polyester, polyurethane, polyvinyl chloride, polyvinylidene chloride, etc., depending on the purpose. It is also possible to use it as two or more resin layers.

これらの合成樹脂層は上記のような素材であるためヒー
トシール性があり、簡単に熱封着できるため有利である
Since these synthetic resin layers are made of the materials mentioned above, they have heat-sealability and are advantageous because they can be easily heat-sealed.

織布もしくは不織布1に樹脂層4を密着積層せしめるに
は、樹脂フィルムをラミネートするか、熱溶融性樹脂あ
るいは溶剤に樹脂を溶解した樹脂溶液をコーティングす
る方法のいずれによる方法を用いてもよい。
In order to closely laminate the resin layer 4 on the woven or nonwoven fabric 1, it is possible to use either a method of laminating a resin film or a method of coating with a hot-melt resin or a resin solution prepared by dissolving the resin in a solvent.

シート3に細孔4を設ける方法としては、細かい針を植
設した板またはロールにより、好ましくは合成樹脂層2
の側から押し当てるとよい。
The method of providing the pores 4 in the sheet 3 is preferably by using a plate or roll in which fine needles are implanted.
It is best to press it from the side.

この際細孔4はできるだけ全面にわたって均一に穿つこ
とが必要であり、片寄りが大きいと、発熱が不均一にな
ったり、場合によっては細孔4の少ない部分での化学反
応が十分に進行しない。
At this time, it is necessary to make the pores 4 as uniformly as possible over the entire surface, and if they are too uneven, the heat generation may become uneven, or in some cases, the chemical reaction may not proceed sufficiently in areas with fewer pores 4. .

この細孔4の数は大略数個/d以上が好ましく、細孔4
の面積は平均0.2m4以下、好ましくは0.11n似
下の可能なかぎり小さい方がよい。
The number of pores 4 is preferably approximately several pieces/d or more;
It is preferable that the area is as small as possible, on average 0.2m4 or less, preferably 0.11n or less.

また、こうして得られた包材3勿透気度は目的によって
も異なるが、5〜200 cc/i 、mi nの範囲
になるよう調節することによって本考案の目的に合致す
る。
Although the air permeability of the packaging material 3 thus obtained varies depending on the purpose, the purpose of the present invention can be met by adjusting the air permeability to a range of 5 to 200 cc/i, min.

第2図において、発熱組成物5は透気度の大きい内袋6
に充填され、易破壊性の水収容袋7と共に包材3′を用
いて包装する。
In FIG. 2, the heat-generating composition 5 is contained in an inner bag 6 with high air permeability.
It is packed using a packaging material 3' together with an easily destructible water storage bag 7.

この場合下被包材8は前記包材3′と同じものでもよい
が、非通気性包材であってもよい。
In this case, the lower wrapping material 8 may be the same as the wrapping material 3', but may also be a non-breathable wrapping material.

内袋6は水が十分浸透するような素材のもの、例えば、
口紙のような吸水性の紙、プラスチック繊維とセルロー
スとの混抄紙、脱脂綿のような親水性天然繊維、不織布
、スポンジのような多孔プラスチックフィルム等、従来
公知の素材の中から適宜選択するとよい。
The inner bag 6 is made of a material that allows water to penetrate sufficiently, for example,
Appropriate selection may be made from conventionally known materials such as water-absorbent paper such as paper, paper made from a mixture of plastic fibers and cellulose, hydrophilic natural fibers such as absorbent cotton, nonwoven fabric, and porous plastic films such as sponge. .

易破壊性の水収容袋7は保存時あるいは輸送時には破壊
されず、使用時に外力を加えることによって容易に破壊
し、必要な量の水を供給するものである。
The easily destructible water storage bag 7 is not destroyed during storage or transportation, but is easily destroyed by applying external force during use, and supplies the required amount of water.

第2図における下側の包材8は合成樹脂層4とヒートシ
ール可能な材料を少なくとも内側に有する材料であるこ
とが好ましい。
The lower packaging material 8 in FIG. 2 is preferably a material having at least a material heat-sealable to the synthetic resin layer 4 on the inside.

以下実施例および比較例によって具体的に説明する。This will be explained in detail below using Examples and Comparative Examples.

実施例 1 鉄粉(300メツシユ)27g、カーボンブラック3g
、食塩15g、セルロース粉末3gを窒素気流下にて混
合し、この混合物を8CrIl×11crrLの大きさ
の市販混抄紙(三菱製紙■製商品名H85001)の内
袋6の中に入れ周辺をヒートシールした。
Example 1 Iron powder (300 mesh) 27g, carbon black 3g
, 15 g of common salt, and 3 g of cellulose powder were mixed under a nitrogen stream, and this mixture was placed in the inner bag 6 of a commercially available mixed paper (product name H85001 manufactured by Mitsubishi Paper Industries Ltd.) with a size of 8 CrIl x 11 crr L, and the periphery was heat-sealed. did.

第2図に示すように、水収容袋7は6CrfL×7cr
fLの大きさの内面−軸延伸ポリエチレン(20μ)、
外面塩化ビニリデンコートポリエステル(20μ)のラ
ミネートフィルムにて袋をつくり水7.5 mlを封入
せしめ、袋の周辺部に切り裂き誘導部(図示していない
)を設けた。
As shown in Fig. 2, the water storage bag 7 is 6CrfL x 7cr.
Inner surface-axially oriented polyethylene (20μ) with size fL,
A bag was made from a laminated film of polyester (20 μm) coated with vinylidene chloride on the outside, and 7.5 ml of water was sealed therein, and a tear guide portion (not shown) was provided around the periphery of the bag.

切り裂き用テトロン糸を水収容袋7の切り裂き誘導部に
位置せしめ、水収容袋7と発熱組成物1を内蔵した内袋
6をとめ金具にて一体化した。
The tearing Tetoron thread was placed in the tearing guiding part of the water storage bag 7, and the water storage bag 7 and the inner bag 6 containing the heat generating composition 1 were integrated with a fastener.

ナイロン不織布(125μ)にポリエチレン90重量部
(以下部とは重量部を示す)とエチレン−酢酸ビニル共
重合体10部から成る樹脂混合物をエクストルージョン
ラミネーターにて70μの厚さに塗布したシートを外包
材の構成材料とした。
A sheet made of a nylon nonwoven fabric (125μ) coated with a resin mixture consisting of 90 parts by weight of polyethylene (hereinafter "parts by weight") and 10 parts of ethylene-vinyl acetate copolymer to a thickness of 70μ using an extrusion laminator is wrapped. It was used as a constituent material of the material.

上記のシートをニードルパンチ機にて針密度9.3穴/
−の針穴処理を施した。
The above sheet was punched using a needle punch machine with a needle density of 9.3 holes/
− Needle hole treatment was applied.

フラジール型法透気度測定装置でこのシートの通気度を
測定したところ23±2 CC/i 、mi nであっ
た。
The air permeability of this sheet was measured using a Frazier type air permeability measuring device and was found to be 23±2 CC/i, min.

なおナイロン不織布のみの通気度は1188〜1308
cc/cit 、m i nの範囲内にあった。
The air permeability of nylon nonwoven fabric alone is 1188 to 1308.
It was within the range of cc/cit and min.

上記の針穴処理を施したシート3′を上被包材、針穴処
理していないシート8を下被包材として用いた。
Sheet 3', which had been subjected to the needle hole treatment described above, was used as the upper covering material, and sheet 8, which had not been subjected to the needle hole treatment, was used as the lower covering material.

二種類のシートをそれぞれ12.5cmx10.5 c
mの大きさに切断し、合成樹脂層4を内側にして重ね合
わせ、その周囲3方を7゜5mm巾にインパルスシーラ
ーにてヒートシールし、開口部より前述した水収容袋7
と発熱組成物を収容した内袋6を一体化したものを入れ
ヒートシールした。
Two types of sheets each 12.5cm x 10.5c
The above-mentioned water storage bag 7 is cut into pieces with a size of m, stacked on top of each other with the synthetic resin layer 4 on the inside, and heat-sealed on three sides to a width of 7°5 mm using an impulse sealer.
A combination of the inner bag 6 containing the exothermic composition and the exothermic composition was placed and heat-sealed.

この際テトロン糸の延長部はシール部より外包材の外に
取り出される様にした。
At this time, the extended portion of the Tetoron thread was taken out from the sealing portion to the outside of the outer wrapping material.

テトロン糸を引き抜いて水収容袋7を破壊して発熱を開
始させ、ただちにこの発熱構造体の下被包材8の外面に
熱センサーを接触せしめ、人体への適用を考慮し、表面
温度が37℃を示すよう制禦した面との間における発熱
温度と持続時間を測定した。
The Tetoron thread is pulled out to destroy the water storage bag 7 to start generating heat, and a heat sensor is immediately brought into contact with the outer surface of the lower enveloping material 8 of this heat generating structure. The temperature and duration of heat generation between the surface and the surface which was controlled to indicate ℃ was measured.

測定結果は最高発熱温度48℃、発熱持続時間9時間で
あった。
The measurement results were that the maximum exothermic temperature was 48°C and the exothermic duration was 9 hours.

たゾし、発熱持続時間は44℃以上の温度を示す時間を
もって青石した。
However, the duration of heat generation was 44°C or higher.

比較例 1 上被包材として、表1に示すような各種の孔を全体に分
布するように空けた有孔ポリプロピレンフィルム(70
μ)と実施例1におけるナイロン不織布とを積層した包
材を用いた以外は実施例1と同様にして発熱構造体を作
り、最高発熱温度と44℃以上での発熱持続時間を測定
し、結果を表1に示す。
Comparative Example 1 As the upper covering material, a perforated polypropylene film (70
A heat generating structure was made in the same manner as in Example 1 except that a packaging material made by laminating μ) and the nylon nonwoven fabric in Example 1 was used, and the maximum heat generation temperature and heat generation duration at 44°C or higher were measured. are shown in Table 1.

実施例 2 実施例1において針密度を代えた上被包材を用いた以外
は実施例1と同様にして発熱構造体を作り、最高発熱温
度と44℃以上での発熱持続時間を測定し、結果を表2
に示す。
Example 2 A heat generating structure was made in the same manner as in Example 1 except that the upper covering material with different needle density was used, and the maximum heat generation temperature and heat generation duration at 44°C or higher were measured. Table 2 shows the results.
Shown below.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案に係わる発熱構造体に用いる通気量調節
された包材の拡大断面図、第2図は発熱構造体の断面図
である。 図中の各記号は以下のとおりである。 1・・・・・・織布もしくは不織布、2・・・・・・合
成樹脂層、3・・・・・・積層シート、3′・・・・・
・細孔を設けた包材、4・・・・・・細孔、5・・・・
・・発熱組成物、6・・・・・・内袋、7・・・・・・
水収容袋、8・・・・・・下被包材。
FIG. 1 is an enlarged cross-sectional view of a packaging material with controlled ventilation used in a heat-generating structure according to the present invention, and FIG. 2 is a cross-sectional view of the heat-generating structure. Each symbol in the figure is as follows. 1... Woven fabric or non-woven fabric, 2... Synthetic resin layer, 3... Laminated sheet, 3'...
・Packaging material with pores, 4... Pores, 5...
...Exothermic composition, 6...Inner bag, 7...
Water storage bag, 8...lower covering material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 水および空気との接触によって発熱する組成物を、少な
くとも一面は通気性である包材を用いて封入せしめてな
る扁平状発熱構造体において、該通気性包材として、織
布もしくは不織布と合成樹脂層とを密着積層せしめたシ
ートの全面にわたって実質上均一に平均0.2 yni
以下の細孔を穿つことによって、5ないし200cc/
瀝、minの範囲に透気度を調節した包材を用いること
を特徴とする前記構造体。
A flat heat-generating structure in which a composition that generates heat upon contact with water and air is encapsulated using a gas-permeable packaging material on at least one side, the gas-permeable packaging material comprising a woven fabric or non-woven fabric and a synthetic resin. 0.2 yni on average substantially uniformly over the entire surface of the sheet in which the layers are closely laminated.
By drilling the following pores, 5 to 200cc/
The above-mentioned structure is characterized in that a packaging material is used whose air permeability is adjusted to a range of 0.25 min.
JP1978143391U 1978-10-20 1978-10-20 heating structure Expired JPS5822733Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1978143391U JPS5822733Y2 (en) 1978-10-20 1978-10-20 heating structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1978143391U JPS5822733Y2 (en) 1978-10-20 1978-10-20 heating structure

Publications (2)

Publication Number Publication Date
JPS5559616U JPS5559616U (en) 1980-04-23
JPS5822733Y2 true JPS5822733Y2 (en) 1983-05-16

Family

ID=29121024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1978143391U Expired JPS5822733Y2 (en) 1978-10-20 1978-10-20 heating structure

Country Status (1)

Country Link
JP (1) JPS5822733Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000013626A1 (en) * 1998-09-06 2000-03-16 Ferric Inc. United heating medium and heating material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5971618U (en) * 1982-11-05 1984-05-15 日本パイオニクス株式会社 Heating element for foot warming
JPS59229131A (en) * 1984-05-02 1984-12-22 Kemitsuku:Kk Exothermic object to be used in chemical pocket warmer served by adding water when in use
JP2007143570A (en) * 2005-11-04 2007-06-14 Mycoal Products Corp Heating implement and heating pack
KR20230045029A (en) * 2020-08-11 2023-04-04 페릭가부시키가이샤 Heating element manufacturing method and heating element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4420037Y1 (en) * 1965-12-14 1969-08-27
JPS5123769B2 (en) * 1971-12-17 1976-07-19

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5714814Y2 (en) * 1974-08-07 1982-03-27
JPS53110789U (en) * 1977-02-10 1978-09-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4420037Y1 (en) * 1965-12-14 1969-08-27
JPS5123769B2 (en) * 1971-12-17 1976-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000013626A1 (en) * 1998-09-06 2000-03-16 Ferric Inc. United heating medium and heating material

Also Published As

Publication number Publication date
JPS5559616U (en) 1980-04-23

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