JPS58225180A - Cold insulator - Google Patents

Cold insulator

Info

Publication number
JPS58225180A
JPS58225180A JP57106091A JP10609182A JPS58225180A JP S58225180 A JPS58225180 A JP S58225180A JP 57106091 A JP57106091 A JP 57106091A JP 10609182 A JP10609182 A JP 10609182A JP S58225180 A JPS58225180 A JP S58225180A
Authority
JP
Japan
Prior art keywords
liquid
ice
refrigerator
porous material
cooled
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
JP57106091A
Other languages
Japanese (ja)
Inventor
Genji Taga
玄治 多賀
Motoo Takeuchi
竹内 元男
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP57106091A priority Critical patent/JPS58225180A/en
Publication of JPS58225180A publication Critical patent/JPS58225180A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide a novel cold insulator made of a porous material with a liquid absorbed in it, capable of uniformly cooling in a refrigerator, etc., objects without wetting, by making the contained liquid into ice. CONSTITUTION:A liquid (e.g., water CaCl2 aqueous solution, saline solution) is absorbed in a porous material such as perlite, pumice, foamed glass, rigid expanded polyurethane resin, i.e. an inorganic and/or compression-resistant granules or formed product. The resulting body is then put, if required, in a hygroscopic bag such as one mode of nonwoven fabric, cooled in, e.g., a refrigerator, and put into use, preferably by making the contained liquid into ice. When used under contained state in a bag, etc., granules with a size 0.1-10mm. will be convenient, on the other hand, in the case of applying as a formed product, it is easier to use one with the longer diameter being 10-100mm.; especially, a disc- or almond-shaped product of a diameter 3-6cm will be preferable.

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は新規な保冷剤に関する。従来、保冷剤としては
、氷、ドライアイス等の凝固物、或いはビニール袋に液
体を収納したもの等が一般的である。しかしこれらの保
冷剤は、それぞれの特徴を有する反面、欠点も有してい
る為、使用にあたっては制限を受ける場合がある。 例えば、氷は簡便な保冷剤であり、各方面で広く用いら
れるが、融解づると液体となって被冷却物を濡ら寸欠点
がある。ビニール装入りのものは、この欠点を改良した
しのであるが、やはり表面に結露し、氷程ではないが液
冷fill物を濡らづことがある。更に構造上、特殊な
形状のものを製作覆るのが困難で一般に比較的大きい塊
状物となっており、断熱箱中で使用する場合であっても
全体を均一に冷却(ることが麹かしい。 また、ドライアイスは昇華性である為、氷のように被冷
却物を濡らす欠点はないが、冷却温度が低く低温障害の
生ずるものには使用出来ない。更に家庭などで手軽に入
手し難い而もある。 本発明は上記欠点を解決した新規な保冷剤を提供づるも
のである。即ら、本発明は液体を多孔体に吸収させた保
冷剤であり、その使用にあってはこれを家庭などの冷蔵
庫に入れ冷却し、好ましくは含有液を結氷さU゛て使用
づるものである。 本発明の保冷剤は、多孔体中の細孔中に存在する液体が
使用に先立つ冷却処理によって一般に固化して得るため
、これが融解して元の液体に戻るときの融解潜熱を利用
づるものである。また、融解後の液体は、細孔中にとど
まる為、被冷却物を濡らすことはない。更に本発明にあ
っては吸収させる液体の種類によって異なった結氷温度
となるため、液体の種類を適宜変えることによつ(冷気
温度も任意にコントロールづることか出来る。 本発明に用いる多孔体は、内部に液体を含浸出来るもの
であれば、右機物、無機物を問わず公知のものが特に制
限なく用いられる。例えば珪酸ノコルシウム、炭酸マグ
ネシウム、バーライ1−等の無機粉粒体及びその成形体
或いはプラスチック発泡体、スポンジ等があり、これら
は用途により使い分(Jられるが、一般に液体を含浸さ
せた場合、又はこれを冷却結氷さt!l〔場合、崩壊覆
るものは不向きCある。また、スポンジの如く柔かいも
ので使用中に圧縮力がかかると液体が押し出され被冷却
物を濡らづ恐れがあるもの等は使用に際して)」意を要
するし、使用範囲も限定される。そこで本発明において
好ましい多孔体としCは、無機粉粒体等C耐圧縮性の粉
粒体の流動性物質を吸湿性の袋に収納し/l: bのや
、該耐圧縮性の粉粒体の成形物を用いるのが好ましい。 即ち、耐H−縮竹の物質の使用により保冷剤中に液体が
存在づる状態てあつCも液体が押し出されることはない
。 耐圧縮性の物質としては、一般に耐yT縮(破壊)強電
が2kMcn?好ましくは5kl;l/01以上もあれ
ばよく、例えばパーラ・イト、軽石、発泡ガラス、硬質
発泡ウレタン樹脂、発泡塩化ビニル樹脂、その他の硬質
発泡樹脂、石膏、珪酸カルシウム、含水I4酸等、中で
もパーライトは液体を吸収し易く目つ該多孔体で保冷剤
を製作した場合、液冷N1物への冷1.I]効果が均一
で効率が良くしかし安価Cあることから、1回毎に取り
換える用途として好ましい。 また珪酸カルシウムの成形体は各種の形状の軽…成形体
が出来、しかも液体を含浸させることが容易でl゛つ成
形強度も大ぎく含浸液量も大きいので好ましく用いられ
る。1プラスチック発泡体は連続孔を有するものは使用
できるが、独立孔C液体を含浸させることが出来ないし
のは使用でき4Tい。但し、液体中でカプセル化したJ
:う’、′r’bのは独立孔であっても使用できる可能
性がある。 本発明に用いる多孔体の形状、構造等は、保冷剤の用途
、或いは吸収覆る液体により任意に選定づることができ
る。一般には第1図に示1如く耐圧縮性の粉粒体1を不
織布或いは吸湿性の袋2に収納し、液体が融解したり、
空気中の湿気が凝縮し、露を結ぶ際に被冷却物を濡らさ
ない構造としたものや、アーモンド(第2図にIL而面
を示1)、球形、円筒形、円盤状(第3図にif面図を
示J〉サイコロ状などの粉粒体の成形物とづることが好
ましい1゜またこれらの大きさは液冷N1物により1■
意に選定りることができる。一般に袋等の容器に入れて
使用づる場合は0.1mm乃至+Omm程度の粉粒体が
、また成形物として用いる場合にはでの艮(¥が10w
un以上100mm以下が便利である。 特に内径3・〜・6cm程度の円盤形や同程度の大きさ
のアーモンド形なのが好適Cある1゜ ■、多孔体には連続孔のものと独立孔のものがあり、連
続孔のものは液体を含浸させるのが容易でしかも結露し
へいので好ましいが、表面からの蒸発により液体が減少
覆る為、繰り返し使用づる場合は、液体の補給が必要と
(7る。一方、独立孔のbのは、多孔体製造時に液体を
含浸させる以外、液体を含浸させるの
The present invention relates to a novel ice pack. Conventionally, cold packs have generally been solidified products such as ice or dry ice, or liquids stored in plastic bags. However, while each of these ice packs has its own characteristics, it also has drawbacks, which may limit its use. For example, ice is a simple refrigerant and is widely used in various fields, but it has the disadvantage that when it melts, it becomes liquid and wets the object to be cooled. Although vinyl-packed products have improved this drawback, condensation still forms on the surface, and although it is not as bad as ice, it can wet liquid-cooled items. Furthermore, due to its structure, it is difficult to manufacture and cover products with special shapes, and it is generally a relatively large lump, and even when used in an insulated box, it is difficult to uniformly cool the entire product. In addition, since dry ice sublimates, it does not have the disadvantage of making the object to be cooled wet like ice does, but it cannot be used for objects with low cooling temperatures that may cause low-temperature damage.Furthermore, it is difficult to obtain easily at home. The present invention provides a novel ice pack that solves the above-mentioned drawbacks.That is, the present invention is a cold pack in which a porous body absorbs liquid. The ice pack of the present invention is used by cooling the liquid contained in the porous body by cooling it in a refrigerator, preferably by freezing the liquid contained therein. Since it is obtained by solidifying, it utilizes the latent heat of fusion when it melts and returns to its original liquid state.Furthermore, the liquid after melting remains in the pores, so it does not wet the object to be cooled. Furthermore, in the present invention, the freezing temperature differs depending on the type of liquid to be absorbed, so by appropriately changing the type of liquid (the cold air temperature can also be controlled arbitrarily). Any known material, whether organic or inorganic, can be used without particular limitation as long as it can be impregnated with a liquid.For example, inorganic powder and granules such as nocolcium silicate, magnesium carbonate, and barley 1-, and molded products thereof. Alternatively, there are plastic foams, sponges, etc., and these can be used depending on the purpose, but in general, if they are impregnated with liquid, or if they are cooled and frozen, they are not suitable for disintegrating and covering. However, when using soft materials such as sponges, which may cause the liquid to be pushed out and wet the object to be cooled when compressive force is applied during use, caution is required and the range of use is limited. In the present invention, preferred porous material C is a fluid material of compression-resistant powder or granular material such as inorganic powder or granular material stored in a hygroscopic bag. It is preferable to use a molded product. That is, by using a H-curled bamboo material, even if liquid is present in the ice pack, the liquid will not be squeezed out. As a compression-resistant material, generally It is sufficient if the yT shrinkage (destruction) strong electric current is 2kMcn?preferably 5kl;l/01 or more, such as perlite, pumice, foamed glass, hard foamed urethane resin, foamed vinyl chloride resin, other hard foamed resins, plaster. , calcium silicate, hydrated I4 acid, etc., especially perlite, which is easy to absorb liquid.If a cold pack is made from this porous material, it will be difficult to cool the liquid-cooled N1 material. I] Since the effect is uniform, efficient, and inexpensive C, it is preferable for use where it can be replaced every time. Furthermore, molded bodies of calcium silicate are preferably used because they can be made into light molded bodies of various shapes, are easily impregnated with liquid, have high molding strength, and have a large amount of impregnated liquid. 1 Plastic foams with open pores can be used, but closed pores cannot be impregnated with C liquid and cannot be used. However, J encapsulated in liquid
:U', 'r'b may be usable even if it is an independent hole. The shape, structure, etc. of the porous body used in the present invention can be arbitrarily selected depending on the purpose of the cold pack or the liquid to be absorbed. Generally, as shown in FIG. 1, compression-resistant powder 1 is stored in a nonwoven fabric or hygroscopic bag 2, and the liquid is melted or
Those with a structure that prevents the object to be cooled from getting wet when moisture in the air condenses and forms dew, almond (Figure 2 shows the IL surface 1), spherical, cylindrical, and disc shaped (Figure 3) The if side view is shown in J〉 It is preferable to call it a molded product of powder or granular material such as a dice shape.
Can be selected at will. Generally, when used in a container such as a bag, powder or granules of about 0.1mm to +0mm are used, and when used as a molded product, it is
It is convenient that the distance is greater than or equal to un and less than or equal to 100 mm. In particular, a disc-shaped body with an inner diameter of about 3 to 6 cm or an almond-shaped body of the same size is suitable. Porous materials include those with continuous pores and those with independent pores, and those with continuous pores are This is preferable because it is easy to impregnate the liquid with no condensation, but the liquid decreases due to evaporation from the surface, so if it is used repeatedly, it is necessary to replenish the liquid (7). In addition to impregnating liquid during porous material manufacturing,

【51容易でない
が、繰り返し使用しでも液体が[lスすることはないの
で、補給の必要はないという利点を右づるが、使用時に
結露する可能性がある。 本発明に用いる液体は、有機物、無機物及びその混合客
演等、特に限定されるものではないが、冷却により固化
し、イの融解熱が大きいものが好ましく保冷温度はその
液体の凝固点とほぼ一致するので、被冷却物に適づる冷
却温度は液体を選定することにより達成される。該液5
一 体どじては、最も手軽で安全性も高いところから水を用
いるのが一般的であるが、冷却温度を低くする場合、塩
化力ルシウ11溶液や塩水を用いることも好ましい、。 液体を多孔体に吸収させる手段は連通孔の場合に(よ公
知の方法が特に制限なく使用できる。例えば液体容器中
に多孔体を浸)Iる方法や液体スプレー智により多孔体
中に液体を吸収させる方法等である。また、独(r気泡
の場合には多孔体製造時に液体を含浸させる方法等があ
る。 該保冷剤は使用にあたってあらかじめ冷蔵庫hp−(冷
?JIL、、好ましくは含有液を結氷させればよい。 以下、本発明を更に詳しく述べるための実施例を示づが
本発明は以下の実施例に特に限定されるものではない。 実施例1 直径50mm、高さ10mmの円筒状の珪酸カルシウム
(徳山−゛速製、商品名フローライh R)の乾式プレ
ス成形体(比重0.25 )に次の(1)及び(2)の
物質を吸収さ′せた保冷剤30個を内容積1Qの発泡ス
チ[1−ル製保冷箱に入れ、室温(24℃)中に放置し
、イの温磨変化を測定し1.:。  6− (1) 15gの水 (2〉 5%塩化カルシウムを15.2g(3)比較の
ため450qの氷を用いて同上の測定をした。 結果を第1表に示した。 尚、(3)はlvI間経過後から1でに水が生成してお
。 す、8時間後には完全に水とな−】(−いた。他方、本
例では水や水滴は全くなかった。
[51] Although it is not easy, the liquid does not leak even after repeated use, so there is no need to replenish it, which is an advantage, but there is a possibility of condensation during use. The liquid used in the present invention is not particularly limited, such as organic substances, inorganic substances, and mixtures thereof, but it is preferably one that solidifies upon cooling and has a large heat of fusion, and the cooling temperature is approximately the same as the freezing point of the liquid. Therefore, a cooling temperature suitable for the object to be cooled can be achieved by selecting the liquid. The liquid 5
Generally speaking, water is used because it is the easiest and safest method, but if the cooling temperature is to be lowered, it is also preferable to use Lucium 11 chloride solution or salt water. The means for absorbing the liquid into the porous body may be a method of absorbing the liquid into the porous body in the case of communicating holes (any well-known method can be used without particular limitation, for example, by immersing the porous body in a liquid container) or a method of absorbing the liquid into the porous body by liquid spraying. These include methods of absorption. In addition, in the case of porous foam, there is a method of impregnating the porous body with a liquid at the time of manufacture. The ice pack may be used in advance by freezing the liquid contained in the refrigerator. Examples are shown below to describe the present invention in more detail, but the present invention is not particularly limited to the following examples.Example 1 A cylindrical calcium silicate (Tokuyama- Thirty ice packs made by absorbing the following substances (1) and (2) into a dry press molded product (specific gravity 0.25) made by Kosoku Co., Ltd., product name Floraih R) were placed in a foamed steel tube with an internal volume of 1Q. [1-Put it in a cool box made of aluminum, leave it at room temperature (24°C), and measure the change in temperature. 6- (1) 15g of water (2> 5% calcium chloride). 2g (3) For comparison, the same measurements as above were carried out using 450q of ice.The results are shown in Table 1.In addition, in (3), water was already generated after lvI period had passed. After 8 hours, water had completely disappeared. On the other hand, in this example, there was no water or water droplets at all.

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

第1図は本発明の保冷剤の代表的態様を示しl〔斜視図
、第2図、第3図は粉粒体の成形物を用いた保冷剤の斜
視図ぐある。 特へ′1出願人 徳山曹達株式会ネ1 7− 焦1凹 y/f2図     賃3図
FIG. 1 shows a typical embodiment of the ice pack of the present invention; FIGS. 2 and 3 are perspective views of a cold pack using molded powder particles. Particularly '1 Applicant Tokuyama Soda Co., Ltd. Ne1 7- Jiao 1 concave y/f2 diagram Ren 3 diagram

Claims (1)

【特許請求の範囲】[Claims] 1)液体を多孔体に吸収させた保冷剤。1) A cold pack that absorbs liquid into a porous material.
JP57106091A 1982-06-22 1982-06-22 Cold insulator Pending JPS58225180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57106091A JPS58225180A (en) 1982-06-22 1982-06-22 Cold insulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57106091A JPS58225180A (en) 1982-06-22 1982-06-22 Cold insulator

Publications (1)

Publication Number Publication Date
JPS58225180A true JPS58225180A (en) 1983-12-27

Family

ID=14424872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57106091A Pending JPS58225180A (en) 1982-06-22 1982-06-22 Cold insulator

Country Status (1)

Country Link
JP (1) JPS58225180A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112479U (en) * 1989-02-27 1990-09-07
JP2019194097A (en) * 2018-05-01 2019-11-07 藤森工業株式会社 Cold insulation cushioning member
CN110437803A (en) * 2019-07-18 2019-11-12 常州海卡太阳能热泵有限公司 Composite phase-change cool storage material and preparation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02112479U (en) * 1989-02-27 1990-09-07
JP2019194097A (en) * 2018-05-01 2019-11-07 藤森工業株式会社 Cold insulation cushioning member
CN110437803A (en) * 2019-07-18 2019-11-12 常州海卡太阳能热泵有限公司 Composite phase-change cool storage material and preparation method

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