APPARATUS FOR PRODUCING POLYMER FILM AND PROCESS FOR PRODUCING POLYMER FILM

摘要

The present invention provides an apparatus suitable for producing a polymer film, which is used for producing a polymer film, particularly a polyimide film, wherein drying and heat treatment are performed using a tenter type feeding apparatus, which apparatus being capable of suppressing the problems of deformation of film in the vicinity of pore into which the pins bite and breakage of the pores to form long pores in the width direction, as well as a production method of a polymer film using the apparatus. In apparatuses for producing a polymer film having a pin tenter type processing part, an apparatus for producing a polymer film, which has a means to suppress deformation of the film in the vicinity of the pins at the time point when the both ends of the film is pierced with the pins. An apparatus for producing a polymer film comprising a means to cool the pin temperature to less than 180°C at the time point when the film is fed upon piercing the both ends of the film through pins and an apparatus for producing a polymer film wherein individual pins arranged on the innermost side of the pin sheets are all disposed at the same distance both in the film feeding direction in the individual pin sheets and between other pin sheets.