High-barrier polypropylene SMS non-woven fabric and preparation method thereof

The invention provides a preparation method of a high-barrier polypropylene SMS non-woven fabric. Raw material of the high-barrier polypropylene SMS non-woven fabric comprises: a PP spun-bonded material, a PP melt-blown material, special spun-bonded blue color master batches and special melt-blown blue color master batches in the mass ratio of 60-74: 25-38: 0.8-2.0: 0.8-2.0. The preparation methodcomprises a three-resistance after-treatment step, wherein in three-resistance after-treatment, the adopted oiling agent comprises the following components: a penetrating agent, an antistatic agent,fluoride and water; and the penetrating agent is low-carbon alcohol, the antistatic agent is phosphate, and the fluoride is a fluorine-containing acrylate polymer. The high-barrier polypropylene SMS non-woven fabric prepared by the preparation method disclosed by the invention has relatively good water permeability resistance, barrier property, alcohol resistance, antistatic property and air permeability, and has relativel