Medical dressings, as a covering for wounds, can replace the damaged skin to act as a temporary barrier during the wound healing process, avoiding or controlling wound infections and providing an environment conducive to wound healing. With the aging of the population and the increase of chronic ulcerative wounds, the market value of medical dressings has become increasingly important.

According to the materials used, medical dressings can now be broadly categorized into: natural materials, synthetic polymers, inorganic materials and composites.

Natural materials include cotton fiber, chitin, chitosan, alginate, animal skin, etc. There are many kinds of synthetic molecular materials that can be used as dressings, such as polyurethane, polyvinyl alcohol, polyacrylamide, etc., while inorganic materials include graphite, inorganic active glass, etc.

The quality of dressings is directly related to patient safety, and coupled with the trend of an aging society that will increase the chances of chronic wound formation, the demand for high-performance dressings will continue to grow. Medical dressings are no longer limited to the protection of wounds, but should also have the effect of promoting wound healing, and for different wounds and different stages of wound healing there are corresponding specialized dressings, easy to use, to reduce the patient's pain, and after the wound healing does not produce scar tissue.