| 摘要 |
PROBLEM TO BE SOLVED: To provide an indicator which is used for a disposable diaper and detects the urination or evacuation in the diaper.SOLUTION: An indicator 35 is formed of an acid-base indicator and a carrier thereof. The discoloration region of the indicator includes at least a part of a range of pH3-5, and porous particles are used as the carrier. The indicator is any of bromocresol green, bromophenol blue, methyl red, and methyl orange. The particle is one selected from the group of inorganic particles formed of silica gel, active alumina, zeolite, calcium silicate, bentonite, acidic clay, and calcium carbonate. |
