Title:
TEMPERATURE HISTORY DISPLAY BODY, METHOD OF MANUFACTURING SAME, AND METHOD OF USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/159040
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a temperature history display body which can be stored at room temperature and which can be activated easily at an arbitrarily defined time.
In order to solve this problem, a temperature detecting body according to the present invention is provided with: a substrate; a color forming layer including a color forming agent; a temperature-sensitive layer including a developing agent which promotes formation of the color of the color forming agent or a change in the color thereof, and a temperature-sensitive agent which melts when a prescribed temperature is exceeded; and a diffusion preventing layer which is disposed between the color forming layer and the temperature-sensitive layer and which prevents diffusion of the developing agent into the color forming layer; wherein the temperature-sensitive layer, the diffusion preventing layer and the color forming layer are stacked in order on the substrate, a side surface of the temperature-sensitive layer is covered with a non-porous member, and the diffusion preventing layer is fixed to the non-porous member using an adhesive agent which peels off at or below a prescribed temperature.
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Inventors:
YUASA TOYOTAKA (JP)
SASAKI HIROSHI (JP)
AIDA KOHHEI (JP)
TADA YASUHIKO (JP)
KAGAWA HIROYUKI (JP)
SOUMA KENICHI (JP)
SASAKI HIROSHI (JP)
AIDA KOHHEI (JP)
TADA YASUHIKO (JP)
KAGAWA HIROYUKI (JP)
SOUMA KENICHI (JP)
Application Number:
PCT/JP2017/002047
Publication Date:
September 21, 2017
Filing Date:
January 23, 2017
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
G01K11/12; G01K11/06
Foreign References:
JPS5810709B2 | 1983-02-26 | |||
JPH11258369A | 1999-09-24 | |||
JPS5243476A | 1977-04-05 | |||
JP2004077285A | 2004-03-11 | |||
JP2004257828A | 2004-09-16 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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