| 摘要 |
PURPOSE: A manufacturing method of a pure polyvinylpyrrolidone-iodine is provided to manufacture a stable polyvinylpyrrolidone-iodine compound with extremely pure and stably, in which impurities are absolutely removed. CONSTITUTION: A manufacturing method of a pure polyvinylpyrrolidone-iodine comprises a step of manufacturing a polyvinylpyrrolidone polymer by removing reaction solvent after reaction; a step of purifying polyvinylpyrrolidone by adding methylene chloride; a step of dissolving the polyvinylpyrrolidone powder into purified water, and obtaining a polyvinylpyrrolidone powder by spraying and drying the solution; and a step of adding purified iodine into the powder, heating and reacting the mixture, and manufacturing the polyvinylpyrrolidone-iodine. |
