Abstract: The objects of the present invention are to provide a moisture permeable waterproof composite film and to provide a moisture permeable waterproof fabric which is constructed to contain the moisture permeable waterproof composite film, each of which being capable of, while retaining the moisture permeability thereof, suppressing deterioration of waterproofness even if external force is applied to these film and fabric. This moisture permeable waterproof composite film is formed of a laminate comprising of at least one layer of porous polytetrafluoroethylene, and at least one layer of porous polyurethane.

Abstract: The present invention has an object of providing the carbon fiber (or the nonwoven fabric configured of the aforementioned carbon fiber) of which the surface area, the graphitization degree, and the fiber diameter are large, high, and small, respectively, and yet of which dispersion is small. The method of producing the carbon fiber nonwoven fabric includes a dispersion liquid preparing step of preparing a dispersion liquid containing resin and pitch, an electrospinning step of producing the nonwoven fabric that is comprised of carbon fiber precursors with electrospinning from the aforementioned dispersion liquid, and a modifying step of modifying the carbon fiber precursors of the nonwoven fabric obtained in the aforementioned electrospinning step into the carbon fiber.