BIAXIALLY STRETCHED NYLON FILM, LAMINATED FILM, LAMINATED PACKAGING MATERIAL, BATTERY, AND METHOD FOR PRODUCING BIAXIALLY STRETCHED NYLON FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a biaxially stretched nylon film having excellent deep drawing molding property at cold molding, a laminated film, a laminated packaging material and a method for producing a biaxially stretched nylon film.SOLUTION: There is provided a biaxially stretched nylon film using a nylon resin as a raw material, wherein when, among the intensity of fluorescence polarization in the plane of the film, the ratio (maximum value/minimum value of the maximum value and the minimum value of a fluorescence polarization intensity that is parallel to the plane of incidence is 1.0 or more and 1.5 or less, the dynamic friction coefficientμdbetween films in the film is 0.45 or less and the dynamic friction coefficientμdbetween a take-up roll of the film and the film is 0.3 or less.