Super-soft matte cotton-like silk and production method thereof

The invention discloses a production method of super-soft matte cotton-like silk, which is characterized in that the cotton-like silk is polyurethane fiber, cellulose is prepared into cellulose gel for later use, the polyurethane fiber is etched by laser to form nano micropores on the surface of the polyurethane fiber, then extinction liquid is injected into the nano micropores, and the super-soft matte cotton-like silk is obtained. The method comprises the following steps of: soaking polyurethane fibers attached with the extinction liquid into prefabricated cellulose gel, solidifying and drying in a coagulating bath at the temperature of between 50 and 70 DEG C so as to obtain the extinction liquid, namely the extinction liquid on the surfaces of the polyurethane fibers to form an extinction liquid layer, soaking the polyurethane fibers attached with the extinction liquid into the prefabricated cellulose gel, depositing the cellulose gel on the surfaces of the polyurethane fibers and the extinction liquid, a