Non-woven fabric preparation method

The invention discloses a preparation method of a non-woven fabric. The preparation method comprises the following steps: preparing non-woven fabric fibers from non-woven fabric master batches through melt extrusion and melt spinning; preparing silicon nitride powder slurry; coating the surface of non-woven fabric fiber with the silicon nitride powder slurry, and then drying the non-woven fabric fiber to obtain sterilized non-woven fabric fiber; the silicon nitride powder slurry comprises an organic solvent and silicon nitride powder; the sterilized non-woven fabric fibers are subjected to web forming and then reinforced into cloth, and the non-woven fabric is obtained. The silicon nitride powder is coated on the surface of the non-woven fabric fiber to realize the sterilization performance of the non-woven fabric fiber, and the silicon nitride powder slurry adopts an organic solvent, so that the reduction of the electrostatic adsorption performance of the non-woven fabric is avoided. 本发明公开一种无纺布制备方法，包括以下步骤：将无