JPS63223082A - Temperature indicating composition - Google Patents

Temperature indicating composition

Info

Publication number
JPS63223082A
JPS63223082A JP5834287A JP5834287A JPS63223082A JP S63223082 A JPS63223082 A JP S63223082A JP 5834287 A JP5834287 A JP 5834287A JP 5834287 A JP5834287 A JP 5834287A JP S63223082 A JPS63223082 A JP S63223082A
Authority
JP
Japan
Prior art keywords
color
composition
dehydration
complex
aqueous emulsion
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
JP5834287A
Other languages
Japanese (ja)
Inventor
Yukifumi Izumimoto
泉本 進史
Haruhiko Yamashita
治彦 山下
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.)
Daicel Corp
Original Assignee
Daicel Chemical Industries 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 Daicel Chemical Industries Ltd filed Critical Daicel Chemical Industries Ltd
Priority to JP5834287A priority Critical patent/JPS63223082A/en
Publication of JPS63223082A publication Critical patent/JPS63223082A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain a temperature indicating composition having extremely clear change of color free from toxicity and flammability, not deteriorating operating environment, comprising an aqueous emulsion containing a complex showing remarkable change of color with dehydration. CONSTITUTION:A composition using an aqueous emulsion containing a complex showing change of color with dehydration, such as cobalt (II) and nickel (II) complex of hexamethylenetetramine [1,3,5,7-tetraazatricyclo (3,3,1,1<3.7>)decane].

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、水温性組成物に関するものである。[Detailed description of the invention] (Industrial application field) TECHNICAL FIELD The present invention relates to a water-thermal composition.

(従来技術および問題点) 固有温度で著しい色相変化を起こす物質による測温は、
取り扱いが容易なので便利である。
(Prior art and problems) Temperature measurement using a substance that causes a significant hue change at a specific temperature is
It is convenient because it is easy to handle.

脱水に伴って著しい色の変化を示す錯塩とゴムを少なく
とも一種および有機溶剤よりなる熱変色性標識用組成物
については特開昭59−184269に紹介されている
。ところが、有機溶剤の使用は測温しようとする材料を
侵食する可能性がある。又、毒性あるいは引火性に問題
があり安全衛生上好ましくない。
A thermochromic labeling composition comprising a complex salt, at least one type of rubber, and an organic solvent, which exhibits a remarkable color change upon dehydration, is introduced in JP-A-59-184269. However, the use of organic solvents may corrode the material whose temperature is being measured. In addition, there are problems with toxicity or flammability, which is unfavorable from a safety and health standpoint.

上記の問題 (問題点を解決するための手段) 上記の問題を解決するため本発明者は鋭意研究を重ねた
結果、本発明に達成することができた。即ち、本発明は
脱水に伴って著しい色の変化を示す錯塩を主成分とする
水系エマルジョンからなる示温性組成物である。これに
用いられる錯塩としては、ヘキサメチレンテトラミン(
1,3,5,7−チトラアザトリシクロ[3,3,1,
13・7]デカン(以下これをhmtaという))のコ
バルト(II)およびニッケル(II)錯体を用いた。
The above problem (means for solving the problem) In order to solve the above problem, the present inventor has made extensive research and has been able to achieve the present invention. That is, the present invention is a temperature-indicating composition comprising an aqueous emulsion containing a complex salt as a main component, which exhibits a remarkable color change upon dehydration. The complex salt used for this is hexamethylenetetramine (
1,3,5,7-thitraazatricyclo[3,3,1,
A cobalt (II) and nickel (II) complex of 13.7]decane (hereinafter referred to as hmta) was used.

これらの合成方法は(エム・ハレメリン)と(シー・デ
ュバル)ミクロシミカアクタの1962 年275頁に
記載されている。又、色の変化の原因はアクア錯体の脱
水であって配位水の数が6.4.2.0と減少していく
と共に、まず、陰イオンの配位が起こり、次いでhmt
aが配位することによる参考文献の著者3名ケイ・ナガ
セ、エイチ・コバヤシケイ・クネのブレ云インオブザケ
ミカルソサエティオブジャバン1976年49巻156
3頁。
These synthetic methods are described in M. Hallemelin and C. Duval, Microcimica Acta, 1962, p. 275. Also, the cause of the color change is dehydration of the aqua complex, and as the number of coordinated waters decreases to 6.4.2.0, coordination of anions occurs first, and then hmt
Three authors of references by the coordination of a: Kei Nagase, H. Kobayashi Kei Kune, Brain of the Chemical Society of Japan, 1976, Volume 49, 156
3 pages.

これらの錯塩としては50°C〜170°Cの間に単変
色するもの、あるいは、温度上昇に伴い不連続ではある
が数段階に変色する多変色のものがある。すなわち、こ
れらは、ある種の温度計的性能を持っている。但し、水
放出型であるから多湿雰囲気内では、再び水を取り入れ
て復色する。数分〜数時間を要するが、結露などで直接
水に触れると直ちに復色する。また、100%水分中で
は加熱で変色しなかったり、逆に10%以下の低湿気中
や乾燥剤中では、加熱しなくても徐々に脱水変色してし
まう。変色が錯塩からの脱水による為エマジョンから形
成される塗膜のガス放出性が悪いと変色が不明瞭になっ
たり、一定の温度で変色しなくなる。従って、本発明に
用いられる水系エマルジョンは耐熱性と共に透気性があ
れば良く例えば、酢酸ビニル系・アクリル系・合成ゴム
系・塩化ビニリデン系・塩化ビニル系等が利用できる。
These complex salts include those that undergo a single color change between 50°C and 170°C, and those that change color in multiple stages, albeit discontinuously, as the temperature rises. That is, they have a kind of thermometric performance. However, since it is a water release type, in a humid atmosphere, water is taken in again to restore the color. It takes several minutes to several hours, but the color will be restored immediately if it comes into direct contact with water due to condensation. Further, in 100% moisture, it does not discolor when heated, and conversely, in low humidity of 10% or less or in a desiccant, it gradually dehydrates and discolors even without heating. Since discoloration is due to dehydration from the complex salt, if the coating film formed from the emulsion has poor gas release properties, the discoloration may become unclear, or the discoloration may not occur at a certain temperature. Therefore, the aqueous emulsion used in the present invention only needs to have heat resistance and air permeability, and for example, vinyl acetate, acrylic, synthetic rubber, vinylidene chloride, vinyl chloride, etc. can be used.

水系エマルジョンの製法はなんら特別考慮は必要でなく
一般公知の方法でよい。これらの水系エマルジョンから
形成される塗膜は、接着性がよく比較的多孔質の皮膜が
得られる。従って、水系エマルジョンは展色剤として優
れている。水系エマルジョンに錯塩を直接あるいは水溶
液の形で添加し、撹はんすることで示温性組成物が得ら
れる。なお、水系エマルジョンには必要に応じて各種添
加物を混入させてもよい。塗装はハケ塗り、又はスプレ
ーで行えるが、特に制限はない。通常、ハケ塗りに適し
た粘度に調整するが、スプレーで広範囲に塗装する場合
、水で粘度を低下させた方が塗布しやすくなる。下塗り
を使用する場合は、それが完全に乾燥固化してから塗る
ようにした方がよい。但し、下塗り塗料としては濃着色
のものを用いると変色が、不明瞭になるので白色を使用
する方が望ましい。
No special considerations are required for the production of the aqueous emulsion, and generally known methods may be used. Coatings formed from these water-based emulsions have good adhesion and are relatively porous. Therefore, water-based emulsions are excellent as color vehicles. A thermostatic composition can be obtained by adding a complex salt directly or in the form of an aqueous solution to an aqueous emulsion and stirring. Note that various additives may be mixed into the aqueous emulsion as necessary. Painting can be done by brushing or spraying, but there are no particular restrictions. Normally, the viscosity is adjusted to be suitable for brush application, but when spraying over a large area, lowering the viscosity with water makes it easier to apply. If you use a primer, it is best to allow it to completely dry and harden before applying it. However, if a darkly colored undercoat is used, the discoloration will become unclear, so it is preferable to use white.

(発明の効果) 溶剤が水であるから毒性・引火性の問題はない。熱によ
って示温材が放出するのが水だけなので作業環境を悪化
させることがない。変色が、極めて明瞭である。測温し
ようとする材料を侵食しない。塗布やシート化により他
の測温用器具類と違って広い面積の温度分布などが容易
かつ安価に測定できる。
(Effects of the invention) Since the solvent is water, there are no problems with toxicity or flammability. The temperature indicating material releases only water when heated, so it does not worsen the working environment. The discoloration is very obvious. It does not corrode the material whose temperature is being measured. Unlike other temperature measurement instruments, it can easily and inexpensively measure temperature distribution over a wide area by coating or forming a sheet.

(実施例) 更に本発明を実施例を用いて詳しく説明する。(Example) Further, the present invention will be explained in detail using examples.

実施例1 酢酸ビニル系エマルジョンとしてダイ セル化学工業株式会社製商品名セビア ンA品番117を用いた。錯塩としては、[N1(H2
O)6]C12−(hmta)Cl2−(hを用いた。
Example 1 Sevian A product number 117 manufactured by Daicel Chemical Industries, Ltd. was used as a vinyl acetate emulsion. As a complex salt, [N1(H2
O)6]C12-(hmta)Cl2-(h) was used.

セビアンA117を50gビーカーに入れて、そこへ錯
塩を5g直接あるいは最少限の水に溶かした形で添加し
て充分に撹はんする。調整後の示温性組成物をガラス板
上に厚さ10ミルのバーコーターにより塗布後55°C
で乾燥して淡青緑色の透明な塗膜を得た。
Put 50g of Sevian A117 into a beaker, add 5g of the complex salt directly or in the form of a solution dissolved in a minimum amount of water, and stir thoroughly. After applying the adjusted thermostatic composition onto a glass plate using a bar coater with a thickness of 10 mils, the thermostatic composition was heated to 55°C.
After drying, a pale bluish-green transparent coating was obtained.

実施例2 実施例1と同様にして得られた塗膜を105°Cで乾燥
し淡黄色の透明な塗膜を得た。
Example 2 A coating film obtained in the same manner as in Example 1 was dried at 105°C to obtain a pale yellow transparent coating film.

実施例3 実施例1と同様にして得られた塗膜を155°Cで乾燥
し紫色の透明な塗膜を得た。
Example 3 A coating film obtained in the same manner as in Example 1 was dried at 155°C to obtain a purple transparent coating film.

Claims (1)

【特許請求の範囲】[Claims] 脱水に伴って著しい色の変化を示す錯塩を含有する水系
エマルジョンからなる示温性組成物。
A thermostatic composition comprising an aqueous emulsion containing a complex salt that exhibits a remarkable color change upon dehydration.
JP5834287A 1987-03-13 1987-03-13 Temperature indicating composition Pending JPS63223082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5834287A JPS63223082A (en) 1987-03-13 1987-03-13 Temperature indicating composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5834287A JPS63223082A (en) 1987-03-13 1987-03-13 Temperature indicating composition

Publications (1)

Publication Number Publication Date
JPS63223082A true JPS63223082A (en) 1988-09-16

Family

ID=13081645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5834287A Pending JPS63223082A (en) 1987-03-13 1987-03-13 Temperature indicating composition

Country Status (1)

Country Link
JP (1) JPS63223082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006184228A (en) * 2004-12-28 2006-07-13 Nichiyu Giken Kogyo Co Ltd Reversible temperature control indicator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853482A (en) * 1981-09-25 1983-03-30 Ricoh Co Ltd Reversible heat-sensitive recording material
JPS59184269A (en) * 1983-04-04 1984-10-19 Sakura Color Prod Corp Composition for thermochromic label

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5853482A (en) * 1981-09-25 1983-03-30 Ricoh Co Ltd Reversible heat-sensitive recording material
JPS59184269A (en) * 1983-04-04 1984-10-19 Sakura Color Prod Corp Composition for thermochromic label

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006184228A (en) * 2004-12-28 2006-07-13 Nichiyu Giken Kogyo Co Ltd Reversible temperature control indicator

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