Detecting body of elapsed time and detecting method of elapsed time

Abstract

Abstract PURPOSE:To make it possible to know a time elapsed easily from the reaction of an oxygen detecting body, by covering the oxygen detecting body with a transparent oxygen-permeable covering material to form a main detecting body, and by covering this main body with an oxygen-barrier covering material in the state of non-oxygen. CONSTITUTION:A detecting body 1 is constructed by a main detecting body 5 formed by covering an oxygen detecting body 3 provided on the surface of a base material 2 with a transparent oxygen-permeating covering material 4, and by an oxygen-barrier covering material 6 covering said main body 5 in the state of non-oxygen. When the oxygen-barrier covering material 6 is removed and the main detecting body 5 is put on a commodity, the oxygen detecting body 3 discolors with time.

Inventors

• 👤 Susumu Ushiama
• 👤 牛尼　進
• 👤 Toshinari Miura
• 👤 俊成 三浦

Bibliographic Details