Waterproof and moisture-permeable composite non-woven fabric with blood and virus blocking capable of blocking virus, bacteria, blood infection, and infection of suspended mouth foam aerosol

• Main Authors: LIN, FU-JUN, WANG, QIU-DI, LIAO, BING-SEN, WANG, CONG-JIA, CAI, YA-TONG
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: ACCESSORIES; HUMAN NECESSITIES; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; OUTERWEAR; PERFORMING OPERATIONS; PROTECTIVE GARMENTS; TRANSPORTING; WEARING APPAREL

The invention provides a waterproof and moisture-permeable composite non-woven fabric with blood and virus blocking, which comprises a non-woven fabric having two surfaces, wherein the basis weight of the non-woven fabric is smaller than or equal to 70g/m2; a multi-layer breathable film having at least three layers of co-extruded films, wherein the basis weight of the multi-layer breathable film is in the range of 5-30 g/m2, the multi-layer breathable film is attached to one of the surfaces of the non-woven fabric, the weight percentage of the powder in the multi-layer breathable film is 40-60%, and the draft ratio thereof is smaller than or equal to 300%. The invention is characterized in that the synthetic blood permeability of the waterproof and moisture-permeable composite non-woven fabric with blood and virus blocking can withstand a pressure of 2.0 psi for 1 minute; the Phi-X174 phage penetration of the waterproof and moisture-permeable composite non-woven fabric with blood and virus blocking can withst