Hyaluronic acid microcapsule, fiber containing hyaluronic acid microcapsule, preparation method and application

The invention provides a hyaluronic acid microcapsule and hyaluronic acid-containing fiber prepared from the hyaluronic acid microcapsule. According to the hyaluronic acid microcapsule, polyvinyl butyral is taken as a shell, hyaluronic acid is taken as an inner core, the hyaluronic acid is wrapped in the shell material, and the shell material has good stability, so that the hyaluronic acid can bestably stored in the shell material. The particle size of the obtained hyaluronic acid microcapsule is 0.2-1 mu m, the hyaluronic acid is added into a base material under the protection of the shell in the spinning process, the strength of the obtained fiber is not affected, the shell of the hyaluronic acid microcapsule is molten under the action of high temperature in the spinning process, the shell is washed off and removed in the spinning aftertreatment acid pickling process, and the hyaluronic acid-containing fiber contains uniformly dispersed hyaluronic acid. The hyaluronic acid-containing fiber is high in hyalur