The invention relates to a
hydrogen peroxide plasma sterilization discoloration ink and a preparation method thereof, which belong to the technical field of medical supplies sterilization detection, and comprise a discoloration ink and a common
pigment, wherein the discoloration ink comprises
methyl blue 0.8-1.2g,
methyl violet 6-10g, absolute
alcohol 6500-7500ml,
ethyl acetate 800-1200ml,
triethanolamine 45-55ml,
butyl acetate 800-1200ml and poly urethane (PU)
resin adhesive 2.8-3.2kg, and the common
pigment comprises phenosafranine 0.1-0.3g and absolute
alcohol 45-55ml. The method for preparing the
hydrogen peroxide plasma sterilization discoloration ink comprises steps: the
methyl blue and the
methyl violet are added into the absolute
alcohol, are added with the
ethyl acetate, the
butyl acetate and the
triethanolamine after being stirred and dissolved, then a dissolved solution is filtered, and is added with the PU
resin adhesive to prepare a discoloration
pigment, the phenosafranine is added into the absolute alcohol to prepare a common pigment by being stirred and dissolved, and the prepared common pigment is added into the discoloration pigment at last, and is uniformly stirred to prepare the
hydrogen peroxide plasma sterilization discoloration ink. The
hydrogen peroxide plasma sterilization discoloration ink which is prepared through the method for preparing the
hydrogen peroxide plasma sterilization discoloration ink is high in sensitivity, strong in stability and thorough in color change, can rapidly detect sterilizing effect, and is short in use time and high in accuracy rate.