Title:
LAMINATE TYPE OXIDIZING-GAS INDICATOR AND METHOD OF DETECTING OXIDIZING GAS
Document Type and Number:
Japanese Patent JP2008032689
Kind Code:
A
Abstract:
To provide an oxidizing-gas indicator which is thin and can be relatively easily managed/stored before use.
The oxidizing-gas indicator is a laminate comprising a color-changeable sheet and transparent sheets, and is characterized in that (1) the color-changeable sheet and the transparent sheets are superposed in such a state that the color-changeable sheet is sandwiched between the transparent sheets, (2) the color-changeable sheet is blocked from the surrounding air by the transparent sheets, and (3) the color-changeable sheet is one comprising a fibrous substrate and, formed on part or all of the surfaces thereof, a color-changeable layer which changes in color upon contact with an oxidizing gas.
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Inventors:
HIRANO CHIZUKO
INOUE HIROSHI
KIYOE RYUICHI
INOUE HIROSHI
KIYOE RYUICHI
Application Number:
JP2007138650A
Publication Date:
February 14, 2008
Filing Date:
May 25, 2007
Export Citation:
Assignee:
SAKURA COLOR PROD CORP
International Classes:
G01N31/22; G01N31/00
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Jun Fujii
Kakehi Yuro
Jun Fujii