METHOD FOR PRODUCING CELLULOSE TRIACETATE FILM, CELLULOSE TRIACETATE FILM PRODUCED BY THE METHOD, AND POLARIZING PLATE USING THE FILM

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a cellulose triacetate film which can control the generation of foreign matter caused by a delustering agent and adjust amounts of the delustering agent and an additives separately.

SOLUTION: In a production apparatus 10, a delustering agent solution and an additive solution, which are prepared separately, are mixed by a second in-line mixer 28, the mixed solution is mixed with dope 14 by a first in-line mixer 22, and the mixture is extruded from a casting die 24 onto a casting band 38 to be cast.

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