Liquid-proof stitched fabric and stitching method therefor

A liquid-proof stitched fabric, characterized in that the liquid-proof stitched fabric comprises a plurality of liquid-proof fabric layer units stitched by means of a heat-sealing method, and each of the liquid-proof fabric layer units comprises:

• at least one liquid-proof film layer, the liquid-proof film layer comprising at least a first high melting range component and a second low melting range component, wherein a first start melting temperature of the first high melting range component is higher than a second start melting temperature of the second low melting range component by 10° C. or more;
• at least one thermoplastic non-woven fiber layer, a maximum start melting temperature of the thermoplastic non-woven fiber layer being lower than the first start melting temperature;
• and
• a discontinuous bonding layer located between the at least one liquid-proof film layer and the at least one thermoplastic non-woven fiber layer;
• wherein a heat-sealing temperature of the heat-sealing method is lower than or equal to a complete melting temperature of the liquid-proof film layer, but higher than the maximum start melting temperature of the thermoplastic non-woven fiber layer.