Water-repellent fabric and water-repellent down product comprising the same

A method of preparing a water-repellent and moisture-permeable fabric, the method comprising:

• preparing a water-repellent fabric having an external surface directly exposed to an external environment and an internal surface directly exposed to an internal material by:
• immersing a raw fabric in a non-fluorinated water-repellent emulsion containing a non-fluorinated water repellent and an aqueous blocked polyisocyanate crosslinking agent;
• and
• drying and curing the raw fabric, which has been immersed, at a temperature of 150° C. to 200° C.;
• applying a polyurethane-based moisture-permeable coating liquid to only the internal surface of the water-repellent fabric,
• wherein the water-repellent fabric is consisting of the external surface being water-repellent and the internal surface being moisture-permeable;
• and
• drying the water-repellent fabric while increasing a temperature from 100° C. to 150° C. after applying the polyurethane-based moisture-permeable coating liquid,
• wherein the water-repellent and moisture-permeable fabric retains a water repellency level of at least 4 after 20 washes, and the moisture-permeable coating liquid results in a moisture-permeable fabric having a water vapor permeability of 10,000 g/m2/24 hours or more as determined by JIS L 1099:2012, Method B-1 (Potassium acetate test) when applied to a raw fabric and dried while increasing a temperature from 100° C. to 150° C.