PROBLEM TO BE SOLVED: To enable to check the time of termination of the volatilization by visual observation in medicine formulations such as a disinfectant and a deodorant using chlorine dioxide.SOLUTION: A mixed layer 6 which consists of a dye 5 and a chlorine dioxide permeable resin is formed on the surface of a sheet 1 of paper or the like, the dye 5 is made not to directly contact the chlorine dioxide, fading timing is adjusted by the type and the amount of the dye 5, and the combination of the type of the chlorine dioxide permeable resin and the thickness of the mixed layer 6, and the mixed layer 6 is attached to the predetermined position of the chlorine dioxide volatilization formulation in which the time of termination and the timing of the volatilization are met.COPYRIGHT: (C)2012,JPO&INPIT【課題】二酸化塩素を用いた殺菌剤や消臭剤等の薬剤製剤において、その揮散の終期を目視によって確認できるようにする。【解決手段】紙などのシート1の表面に、染料5と、二酸化塩素透過性樹脂とからなる混合層6を設け、染料5が直接二酸化塩素に接触しないような形態とし、退色するタイミングを染料5の種類及び量と、二酸化塩素透過性樹脂の種類及び混合層6の厚みの組み合わせにより調整し、揮散の終期とタイミングを合わせた二酸化塩素揮散製剤の所定の位置に取り付ける。【選択図】図3