JPS6469951A - Carbon dioxide gas detection indicator - Google Patents

Carbon dioxide gas detection indicator

Info

Publication number
JPS6469951A
JPS6469951A JP22644887A JP22644887A JPS6469951A JP S6469951 A JPS6469951 A JP S6469951A JP 22644887 A JP22644887 A JP 22644887A JP 22644887 A JP22644887 A JP 22644887A JP S6469951 A JPS6469951 A JP S6469951A
Authority
JP
Japan
Prior art keywords
carbon dioxide
base material
gas
adjusting
dioxide gas
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
JP22644887A
Other languages
Japanese (ja)
Inventor
Hisashi Sato
Ichiro Inoue
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.)
EKIKA CARBON DIOXIDE CO
EKIKA TANSAN KK
Original Assignee
EKIKA CARBON DIOXIDE CO
EKIKA TANSAN KK
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 EKIKA CARBON DIOXIDE CO, EKIKA TANSAN KK filed Critical EKIKA CARBON DIOXIDE CO
Priority to JP22644887A priority Critical patent/JPS6469951A/en
Publication of JPS6469951A publication Critical patent/JPS6469951A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

PURPOSE:To make it possible to detect carbon dioxide gas, which is included in gas or liquid simply at a low cost without collecting the carbon dioxide, by dissolving a basic compound, impregnating phenolphthalein reagent, which is made to be basic and colored, into a base material, and adjusting moisture activity. CONSTITUTION:A basic compound is dissolved and phenolphthalein reagent is made to be basic and colored. The reagent is impregnated into a base material, and moisture activity is adjusted. Thereafter, a part of or the entire part of the base material is covered with a transparent plastic thin film, which is characterized by substantial moisture impermeability and high carbon dioxide permeability. The base material is completed screened from the outside. The concentration of the discoloring carbon dioxide is adjusted by adjusting the quantity of the dissolving basic compound, i.e., by adjusting pH. Thus, the carbon dioxide gas, which is included in gas or liquid, can be detected simply at a low cost.
JP22644887A 1987-09-11 1987-09-11 Carbon dioxide gas detection indicator Pending JPS6469951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22644887A JPS6469951A (en) 1987-09-11 1987-09-11 Carbon dioxide gas detection indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22644887A JPS6469951A (en) 1987-09-11 1987-09-11 Carbon dioxide gas detection indicator

Publications (1)

Publication Number Publication Date
JPS6469951A true JPS6469951A (en) 1989-03-15

Family

ID=16845257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22644887A Pending JPS6469951A (en) 1987-09-11 1987-09-11 Carbon dioxide gas detection indicator

Country Status (1)

Country Link
JP (1) JPS6469951A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054842A1 (en) * 2003-12-02 2005-06-16 Yoichi Yamakawa Humidity indicator
JP2006528774A (en) * 2003-07-22 2006-12-21 ステリス インク Vaporized hydrogen peroxide visual detection device
JP2007333742A (en) * 2001-06-14 2007-12-27 Otsuka Pharmaceut Factory Inc Carbon dioxide gas indicator and package provided with carbon dioxide gas indicator
JP2008275599A (en) * 2007-03-30 2008-11-13 Powdertech Co Ltd Oxygen detector
JP4240888B2 (en) * 1999-12-15 2009-03-18 凸版印刷株式会社 Carbon dioxide detection ink composition, carbon dioxide indicator using the same, and package with carbon dioxide indicator
JP2011123026A (en) * 2009-12-14 2011-06-23 Toppan Printing Co Ltd Carbon dioxide indicator, and package using the same
CN103926240A (en) * 2013-09-30 2014-07-16 安徽养和医疗器械设备有限公司 Carbon dioxide absorption indicator

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4240888B2 (en) * 1999-12-15 2009-03-18 凸版印刷株式会社 Carbon dioxide detection ink composition, carbon dioxide indicator using the same, and package with carbon dioxide indicator
JP2007333742A (en) * 2001-06-14 2007-12-27 Otsuka Pharmaceut Factory Inc Carbon dioxide gas indicator and package provided with carbon dioxide gas indicator
JP2006528774A (en) * 2003-07-22 2006-12-21 ステリス インク Vaporized hydrogen peroxide visual detection device
WO2005054842A1 (en) * 2003-12-02 2005-06-16 Yoichi Yamakawa Humidity indicator
EP1696232A1 (en) * 2003-12-02 2006-08-30 Yoichi Yamakawa Humidity indicator
US7316198B2 (en) 2003-12-02 2008-01-08 Yoichi Yamakawa Humidity indicator
EP1696232A4 (en) * 2003-12-02 2008-12-24 Yoichi Yamakawa Humidity indicator
JP2008275599A (en) * 2007-03-30 2008-11-13 Powdertech Co Ltd Oxygen detector
JP2011123026A (en) * 2009-12-14 2011-06-23 Toppan Printing Co Ltd Carbon dioxide indicator, and package using the same
CN103926240A (en) * 2013-09-30 2014-07-16 安徽养和医疗器械设备有限公司 Carbon dioxide absorption indicator

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