JPS63168484A - Heat generating material - Google Patents

Heat generating material

Info

Publication number
JPS63168484A
JPS63168484A JP61315454A JP31545486A JPS63168484A JP S63168484 A JPS63168484 A JP S63168484A JP 61315454 A JP61315454 A JP 61315454A JP 31545486 A JP31545486 A JP 31545486A JP S63168484 A JPS63168484 A JP S63168484A
Authority
JP
Japan
Prior art keywords
particles
resin
generating material
heat generating
oxidizable substance
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.)
Pending
Application number
JP61315454A
Other languages
Japanese (ja)
Inventor
Tsutomu Yashiro
八代 勉
Yuji Kikuchi
菊池 勇治
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP61315454A priority Critical patent/JPS63168484A/en
Publication of JPS63168484A publication Critical patent/JPS63168484A/en
Pending legal-status Critical Current

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  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

PURPOSE:To facilitate the adjustment of the progress of an exothermic reaction and to widen the range of application of a heat generating material, by covering the surface of particles of an oxidizable substance undergoing an exothermic reaction through oxidation with a resin to form a heat generating material. CONSTITUTION:This heat generating material has a constitution in which the surface of particles of an oxidizable substance undergoing an exothermic reaction through oxidation is covered with a resin. As the covering resin, a synthetic resin, such as a polyurethane, a polyester, a phenolic resin, gum arabic, gelatin or methylcellulose, or a natural resin can be suitably used. Before the oxidizable substance particles are covered with the resin, it is preferable that the particles are granulated so that a plurality of the oxidizable substance particles 1 are present within one covering film 2, or appropriate spaces 3 are present among the particles 1 of the oxidizable substance within the covering film 2, in order to facilitate the breakage of the covering film by a suitable external pressure.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は、発熱材料に関するものである。 The present invention relates to a heat generating material.

【従来技術とその問題点】[Prior art and its problems]

最近、冬期あるいは夜間において暖を取る為にカイロが
用いられている。 この最近におけるカイロは、古くはベンジン等の燃料を
徐々に燃焼させていた構造のものであったのに対し、多
量の鉄微粒子を一方の袋に入れ、又、酸化剤を他方の袋
に入れておき、使用に際しては鉄微粒子と酸化剤とを遮
蔽している壁を破り、両者を混合させることによって暖
を取る構造のものである。 しかし、これら最近のカイロにあっては、その暖を取る
際の発熱調整が充分でない欠点がある。
Recently, warmers have been used to keep warm in winter or at night. These recent body warmers used to have a structure that gradually burned fuel such as benzine, but instead of the old ones, they put a large amount of iron particles in one bag and an oxidizing agent in the other bag. When used, the wall that shields the iron particles and the oxidizing agent is broken and the two are mixed to generate heat. However, these recent warmers have a drawback in that they do not adequately adjust the heat generated when warming the body.

【発明の開示】[Disclosure of the invention]

本発明者は、前記の問題点に対する検討を加えていた所
、これまでのカイロにおける発熱量調整が充分でないの
は、そもそも例えば鉄微粒子と酸化剤とを遮蔽している
壁が破られたならば、鉄微粒子のほとんどはほぼ同時に
酸化反応を呈するようになり、従って発熱反応の徐々な
る進行が行なわれにくいことであることに気付き、そこ
で発熱反応を徐々に行なわせる為の有効なる対策を思索
した結果、鉄微粒子のような酸化反応により発熱反応を
呈する酸化性物質の粒子を、その表面がカバーされるよ
うに樹脂被覆しておけば良いことに気付き、本発明を為
し遂げたのである。 尚、本発明における酸化反応により発熱反応を呈する酸
化性物質の粒子としては、例えば前述の鉄粒子やアルミ
ニウムの粒子等が挙げられるが、これらのものに限られ
ず、又、これらの粒子の粒径並びに形状についても特別
な制約はない。 又、これら酸化性物質の粒子の表面をカバーする樹脂と
しては、例えばポリウレタン、ポリイソシアネート、フ
ェノール樹脂、ポリエステル、ポリアミド、ポリビニル
アルコール、ポリビニルピロリドン、エポキシ樹脂、ア
ラビアゴム、ゼラチン、カルボキシメチルセルロース、
メチルセルロース、エチルセルロース、アクリル樹脂、
酢酸ビニル樹脂、ポリビニルブチラール等の合成樹脂又
は天然樹脂を適宜用いることができる。 そして、このような適宜な樹脂を用いて鉄微粒子のよう
な酸化性物質の粒子の表面を被覆する方法としては、例
えば特公昭52−36525号公報に記載されているよ
うなスプレイドライング法、あるいは有機溶媒からの相
分離法等の手段がある。 尚、これらの手段によって鉄微粒子のような酸化性物質
の粒子の表面を樹脂で被覆するに際しては、これら被覆
されたものに対して適当な外圧を加えた場合に被覆膜が
破壊されやすいように、粒子一つ一つに対してその表面
を樹脂で被覆するのではなく、第1図に示す如く、造粒
によって複数個の酸化性物質の粒子1が一つの被覆11
!2中に存在しているよう、すなわち被覆膜2中の酸化
性物質の粒子11WIに適当な空間3が存在しているよ
うにしておくことが望ましく、あたかもマイクロカプセ
ル化したような構造のものであることが望ましい。 すなわち、マイクロカプセル内に酸化性物質の粒子の集
合体があるようになっていると、このマイクロカプセル
に外圧を作用させると、この外圧に応じて酸化性物質の
粒子の集合体の形状は変形し、マイクロカプセルは破壊
されやすくなる。 そして、上述した芯物質に酸化性物質の粒子を、壁膜材
に高置、子材を用いたあたかもマイクロカプセルのよう
な本発明の発熱材料を、例えば身体の皮膚上に塗布し、
指の圧力で表面のマイクロカプセルの高分子層を破壊す
ると、外気に酸化性物質の粒子が触れ、酸化発熱反応が
起き、暖を取ることが出来るようになる。 尚、酸化性物質の粒子の酸化反応を促進する為に、酸素
等の気体状の酸化剤、過酸化水素水等の液体状の酸化剤
、あるいは二酸化マンガン等の固体状の酸化剤を本発明
の発熱材料と混合して用いることもできる。この気体状
又は液体状の酸化剤については、マイクロカプセル化す
ることにより、固体状の酸化剤と同様に取り扱える。尚
、固体状の酸化剤についても、本発明の発熱材料と同じ
ようにマイクロカプセル化してもよい。 そして、このような本発明になる発熱材料を使用するに
あたっては、グリセリン等のペースト中に混合しておき
、これを塗布することによって使用する方法が考えられ
たり、又は、第2図に示す如く、ベースフィルム4上に
この本発明になる発熱材料5を酸化剤を含んだペースト
状バインダ6で設けたパップ状のように構成したものを
貼ることによって使用する方法が考えられる。 尚、この本発明の発熱材料は、必要な部分のみの被覆膜
を破れば、その部分のみの酸化性物質が酸化発熱反応す
るから、真に必要な部分のみに暖を提供することが出来
、温灸のような使用も可能である。 又、被覆膜を破壊する程度、すなわち外圧を適当に調整
すれば被覆膜の破壊割合も調整できるから、発熱量、す
なわち暖の程度も調整できる。 尚、この暖の程度の調整は、酸化剤等の混合割合の調整
、ペースト中にこの発熱材料を混合する割合を調整する
ことによっても可能である。
The inventor of the present invention, while considering the above-mentioned problems, discovered that the reason why the heat generation amount adjustment in conventional body warmers is not sufficient is that, for example, if the wall that shields the iron particles and the oxidizing agent is broken. For example, he realized that most of the iron particles undergo an oxidation reaction almost simultaneously, and therefore it is difficult for the exothermic reaction to proceed gradually, so he thought of effective measures to make the exothermic reaction gradually proceed. As a result, they realized that particles of oxidizing substances, such as fine iron particles, which exhibit an exothermic reaction due to oxidation reactions, could be coated with a resin so that their surfaces were covered, and they accomplished the present invention. . In addition, the particles of the oxidizing substance that exhibits an exothermic reaction due to the oxidation reaction in the present invention include, for example, the above-mentioned iron particles and aluminum particles, but are not limited to these particles, and the particle size of these particles There are also no special restrictions regarding the shape. Examples of resins that cover the surfaces of these oxidizing substance particles include polyurethane, polyisocyanate, phenol resin, polyester, polyamide, polyvinyl alcohol, polyvinylpyrrolidone, epoxy resin, gum arabic, gelatin, carboxymethyl cellulose,
Methyl cellulose, ethyl cellulose, acrylic resin,
Synthetic resins or natural resins such as vinyl acetate resin and polyvinyl butyral can be used as appropriate. As a method for coating the surface of particles of oxidizing substances such as fine iron particles using such a suitable resin, for example, a spray drying method as described in Japanese Patent Publication No. 52-36525, or There are methods such as phase separation from an organic solvent. When coating the surface of particles of oxidizing substances such as fine iron particles with resin using these methods, care must be taken to ensure that the coating film is easily destroyed when an appropriate external pressure is applied to the coated material. Instead of coating the surface of each particle with a resin, as shown in FIG.
! In other words, it is desirable to have an appropriate space 3 between the particles 11WI of the oxidizing substance in the coating film 2, so that the particles have a structure similar to that of microcapsules. It is desirable that In other words, if there is an aggregate of oxidizing substance particles inside a microcapsule, if external pressure is applied to this microcapsule, the shape of the oxidizing substance particle aggregate will change depending on the external pressure. However, the microcapsules are easily destroyed. Then, the heat-generating material of the present invention, which is like a microcapsule using the above-mentioned core material and the particles of the oxidizing substance and the child material, is applied to the skin of the body,
When the polymer layer of the microcapsules on the surface is destroyed by the pressure of a finger, the particles of oxidizing substances come into contact with the outside air, an oxidative exothermic reaction occurs, and it becomes possible to warm up. In order to promote the oxidation reaction of particles of oxidizing substances, the present invention uses a gaseous oxidizing agent such as oxygen, a liquid oxidizing agent such as hydrogen peroxide, or a solid oxidizing agent such as manganese dioxide. It can also be used in combination with other exothermic materials. By microcapsulating this gaseous or liquid oxidizing agent, it can be handled in the same way as a solid oxidizing agent. Note that the solid oxidizing agent may also be microencapsulated in the same manner as the exothermic material of the present invention. When using the heat-generating material of the present invention, it is possible to mix it into a paste such as glycerin and apply it, or as shown in Figure 2. A conceivable method is to apply the heat-generating material 5 according to the present invention in a pap-like structure with a paste-like binder 6 containing an oxidizing agent on the base film 4. In addition, with the heat generating material of the present invention, if the coating film is broken only in the necessary parts, the oxidizing substance in that part undergoes an oxidative exothermic reaction, so it is possible to provide warmth only to the truly necessary parts. It can also be used as moxibustion. Furthermore, by appropriately adjusting the extent to which the coating is destroyed, that is, the external pressure, the rate of destruction of the coating can be adjusted, and therefore the amount of heat generated, that is, the degree of warmth, can also be adjusted. Note that the degree of heating can also be adjusted by adjusting the mixing ratio of the oxidizing agent and the like, and by adjusting the mixing ratio of the exothermic material in the paste.

【実施例1】 鉄微粒子(川崎製鉄の還元鉄粉、粒度100μm以下)
10重量部 ポリビニルアルコール     0.5重量部水   
               50重量部上記の鉄微
粒子を造粒操作し、凝集粒子を作成し、この環気1粒子
を芯材とし、特公昭52−36525号公報に示されて
いるようなスプレイドライング法によりポリビニルアル
コールの被覆属を表面に形成し、第1図に示すようなマ
イクロカプセル化した構造の発熱材料を得た。 尚、このマイクロカプセル化した発熱材料に対して外圧
を加えると、表面の被覆属が破れ、発熱酸化反応が起き
、暖を得ることが出来た。
[Example 1] Iron fine particles (reduced iron powder from Kawasaki Steel, particle size 100 μm or less)
10 parts by weight Polyvinyl alcohol 0.5 parts by weight Water
50 parts by weight The above fine iron particles are granulated to form agglomerated particles, and one particle of this ring air is used as a core material, and polyvinyl alcohol is processed by the spray drying method as shown in Japanese Patent Publication No. 52-36525. A heat-generating material having a microencapsulated structure as shown in FIG. 1 was obtained by forming a coating on the surface. When external pressure was applied to this microencapsulated heat generating material, the surface coating broke, an exothermic oxidation reaction occurred, and heat was obtained.

【実施例2】 鉄微粒子(川崎製鉄の還元鉄粉、粒度100μ請以下)
50重量部 ポリエステル(東洋紡製のバイロン290)5重量部イ
ソシアネート(日本ポリウレタン製のコロネ−1−L)
                5重量部上記の組成
物をディスパージョンタンクで撹拌し、充分に混合する
。 次に、この混合液にメチルエチルケトン50重量部とト
ルエン100重量部を徐々に加えながら撹拌を行なう。 そして、このようにして得た溶液をスプレイドライング
法にてポリエステル樹脂の被覆膜を鉄微粒子表面に形成
し、第1図に示すような本発明になる発熱材料を得た。 この発熱材料も、実施例1の発熱材料と同じように表面
の被覆膜を破ることにより、暖を取ることが出来た。
[Example 2] Iron fine particles (reduced iron powder from Kawasaki Steel, particle size 100 μm or less)
50 parts by weight polyester (Vylon 290 manufactured by Toyobo) 5 parts by weight isocyanate (Corone-1-L manufactured by Nippon Polyurethane)
5 parts by weight The above composition is stirred in a dispersion tank and mixed thoroughly. Next, 50 parts by weight of methyl ethyl ketone and 100 parts by weight of toluene are gradually added to this mixed solution while stirring. Then, a coating film of polyester resin was formed on the surface of the iron particles using the solution thus obtained by spray drying, thereby obtaining a heat generating material according to the present invention as shown in FIG. 1. Similar to the heat generating material of Example 1, this heat generating material was also able to generate heat by breaking the coating film on the surface.

【実施例3,4】 二酸化マンガン         5重量部エポキシ樹
脂(油化シェルエポキシ製のエピコート)10重量部 シクロへキサノン        90重量部トルエン
            100重量部上記の組成物を
用い、有機溶液系相分離法の手法で二酸化マンガンの粒
子の表面をエポキシ樹脂で被覆した二酸化マンガン含有
マイクロカプセルと、実施例1又は実施例2の鉄含有マ
イクロカプセルとの混合物を、オリーブオイル30重量
部、エチルセルロース30重量部、メチルエチルケトン
50重量部、トルエン50重量部の混合物中に加えて混
練し、本発明の発熱材料をクリーム中に保持した形態の
ものを得た。 これを、皮膚に塗布し、指で擦るとマイクロカプセルが
破れ、発熱酸化反応が起き、暖を取ることが出来た。
[Examples 3 and 4] Manganese dioxide 5 parts by weight Epoxy resin (Epicoat manufactured by Yuka Shell Epoxy) 10 parts by weight Cyclohexanone 90 parts by weight Toluene 100 parts by weight Using the above composition, an organic solution phase separation method was carried out. A mixture of manganese dioxide-containing microcapsules whose surfaces were coated with epoxy resin and the iron-containing microcapsules of Example 1 or 2 was mixed with 30 parts by weight of olive oil, 30 parts by weight of ethyl cellulose, and methyl ethyl ketone. It was added to a mixture of 50 parts by weight and 50 parts by weight of toluene and kneaded to obtain a form in which the exothermic material of the present invention was retained in cream. When this was applied to the skin and rubbed with one's fingers, the microcapsules were ruptured and an exothermic oxidation reaction occurred, providing warmth.

【効果】【effect】

本発明に係る発熱材料は、酸化反応により発熱反応を呈
する酸化性物質の粒子を、その表面がカバーされるよう
に樹脂被覆してなるので、少しの部分にだけ熱が欲しい
場合でもこのような要望に答えることが出来、すなわち
従来のカイロのように袋を破ってしまったらそれで終り
といったものでなく、少しづつの利用も可能となり、又
、保管に際して従来のカイロは袋が破れるとそれで全体
が不良品となるのに対し、本発明のものはたとえ一つの
樹脂被覆が破れても他の樹脂被覆が破れてなければ使用
が可能であり、又、身体に直接塗布したり貼ったりして
の使用が可能になるから、その適用範囲が広い等の特長
を有する。
The heat-generating material according to the present invention is made of particles of an oxidizing substance that exhibits an exothermic reaction due to oxidation reaction, and is coated with a resin so that the surface thereof is covered. In other words, it can be used little by little, rather than just breaking the bag like with conventional body warmers, and it can be used little by little, and when storing conventional body warmers, if the bag is torn, the whole thing is destroyed. In contrast, the products of the present invention can be used even if one resin coating is torn as long as the other resin coatings are intact, and they cannot be directly applied or pasted on the body. Since it can be used, it has the advantage of having a wide range of applications.

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

第1図は本発明に係る発熱材料の概略を示す断面図、第
2図はこの発熱材料がベースフィルム上に設けられてパ
ップ構造に構成された断面図である。 1・・・酸化性物質の粒子、2・・・被覆膜、3・・・
空間、4・・・ベースフィルム、5・・・発熱材料、6
・・・ペースト状バインダ。 第2図
FIG. 1 is a cross-sectional view schematically showing a heat-generating material according to the present invention, and FIG. 2 is a cross-sectional view of the heat-generating material provided on a base film to form a pap structure. 1... Particles of oxidizing substance, 2... Coating film, 3...
Space, 4... Base film, 5... Heat generating material, 6
...Paste binder. Figure 2

Claims (1)

【特許請求の範囲】[Claims] 酸化反応により発熱反応を呈する酸化性物質の粒子を、
その表面がカバーされるように樹脂被覆したことを特徴
とする発熱材料。
Particles of oxidizing substances that exhibit exothermic reactions due to oxidation reactions,
A heat generating material characterized in that its surface is coated with a resin.
JP61315454A 1986-12-29 1986-12-29 Heat generating material Pending JPS63168484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61315454A JPS63168484A (en) 1986-12-29 1986-12-29 Heat generating material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61315454A JPS63168484A (en) 1986-12-29 1986-12-29 Heat generating material

Publications (1)

Publication Number Publication Date
JPS63168484A true JPS63168484A (en) 1988-07-12

Family

ID=18065557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61315454A Pending JPS63168484A (en) 1986-12-29 1986-12-29 Heat generating material

Country Status (1)

Country Link
JP (1) JPS63168484A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09276317A (en) * 1996-04-11 1997-10-28 Genchi Kenkyusho:Kk Heating element for foot warmer and method for producing the same
JP2004503668A (en) * 2000-07-13 2004-02-05 ザ プロクター アンド ギャンブル カンパニー Method and apparatus for supplying volatile components via a controlled exothermic reaction
US6915798B2 (en) * 1998-09-06 2005-07-12 Ferric, Inc. Method of forming a united exothermic medium and a heating element
CN101547676A (en) * 2006-12-14 2009-09-30 金伯利-克拉克环球有限公司 Wet wipes exhibiting a warming effect through the crystallization enthalpy of a supersatured solution incorporated therein
US7654412B2 (en) 2006-05-30 2010-02-02 Kimberly-Clark Worldwide, Inc. Wet wipe dispensing system for dispensing warm wet wipes
US7850041B2 (en) 2006-05-30 2010-12-14 John David Amundson Wet wipes dispensing system
US7914891B2 (en) 2005-12-28 2011-03-29 Kimberly-Clark Worldwide, Inc. Wipes including microencapsulated delivery vehicles and phase change materials
US8192841B2 (en) 2006-12-14 2012-06-05 Kimberly-Clark Worldwide, Inc. Microencapsulated delivery vehicle having an aqueous core

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09276317A (en) * 1996-04-11 1997-10-28 Genchi Kenkyusho:Kk Heating element for foot warmer and method for producing the same
US6915798B2 (en) * 1998-09-06 2005-07-12 Ferric, Inc. Method of forming a united exothermic medium and a heating element
JP2004503668A (en) * 2000-07-13 2004-02-05 ザ プロクター アンド ギャンブル カンパニー Method and apparatus for supplying volatile components via a controlled exothermic reaction
US7914891B2 (en) 2005-12-28 2011-03-29 Kimberly-Clark Worldwide, Inc. Wipes including microencapsulated delivery vehicles and phase change materials
US7654412B2 (en) 2006-05-30 2010-02-02 Kimberly-Clark Worldwide, Inc. Wet wipe dispensing system for dispensing warm wet wipes
US7850041B2 (en) 2006-05-30 2010-12-14 John David Amundson Wet wipes dispensing system
CN101547676A (en) * 2006-12-14 2009-09-30 金伯利-克拉克环球有限公司 Wet wipes exhibiting a warming effect through the crystallization enthalpy of a supersatured solution incorporated therein
US8192841B2 (en) 2006-12-14 2012-06-05 Kimberly-Clark Worldwide, Inc. Microencapsulated delivery vehicle having an aqueous core

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