Ethylene oxide sterilization indicating ink and preparing method thereof

Abstract

The invention discloses ethylene oxide sterilization indicating ink and a preparing method thereof. The ethylene oxide sterilization indicating ink is prepared from, by mass, 8-20% of rosin resin, 12-25% of magnesium chloride hexahydrate, 20-40% of ethyl alcohol, 2-8% of thymol blue sodium salt, 2-8% of chlorophenol red, 0.1-0.8% of a light stabilizer, 1-3% of a dispersion stabilizer and 3-10% of an adhesion agent. The ethylene oxide sterilization indicating ink is non-poisonous and harmless to the human body; after being ground and uniformly dispersed, an ink system can keep long-term system stability, and the ink particle sedimentation rate is low. The ethylene oxide ink has good adhesive force on printing bearing base materials such as film coated base paper, white cardboards, textured paper tape and self-adhesive labels, and it is unnecessary to additionally arranging a protecting layer on the ethylene oxide sterilization indicating ink. The ethylene oxide ink on the printing bearing base material has good response performance to ethylene oxide steam, after ethylene oxide sterilization is carried out, the ink can be turned into black from bright red uniformly, the color can be judged and read easily before and after color changing, and the color changing performance is stable.

Description

technical field [0001] The invention relates to an ethylene oxide sterilization indicating ink and a preparation method thereof. Background technique [0002] Because ethylene oxide does not damage the sterilized items and has strong penetrating power, most items that are not easy to be sterilized by high temperature and pressure steam can be sterilized and sterilized by ethylene oxide. Ethylene oxide has been used as a low-temperature sterilizer since the 1950s, and it is still the most important method for low-temperature sterilization of medical instruments and articles that are not resistant to heat and humidity in medical institutions in the United States. The biggest feature of ethylene oxide as a sterilizing agent is its high efficiency, penetrability to complex items and wide matching with sterilized items. However, the currently used ethylene oxide sterilization monitoring chemical indicators have disadvantages such as easy failure, long sterilization time, poor st...