Oxygen indicator preparation method

The invention discloses an oxygen indicator preparation method. The oxygen indicator preparation method comprises the following steps: preparing solid ingredients and a liquid ingredient, wherein the solid ingredients comprise a dispersant, a stamping auxiliary, a lubricant and an adhesive, and the liquid ingredient comprises an oxygen indicator aqueous solution; enabling all the solid ingredients to pass through a 20-mesh sieve, then feeding the screened materials into an agitator, adding the liquid ingredient while stirring until the materials are mixed uniformly, drying at low temperature or airing at normal temperature; pressing the aired oxygen indicator ingredient by a tablet press to form the flake-shaped or blocky oxygen indicator; packaging: packaging the flake-shaped or blocky oxygen indicator to obtain the product. According to the oxygen indicator preparation method disclosed by the invention, the indicator is prepared into the flake shape or the block shape, so that the indicator is convenient to package and store, low in possibility of being affected with damp, longer in service life and long in period of validity; furthermore, in the using process, the oxygen indicator is free of powder leakage and liquid seepage.