POLARIZER MANUFACTURING METHOD WHICH CONTROLS EACH CONDITION OF A SWELLING PROCESS OR A CLEANING PROCESS BEFORE PERFORMING A DYE PROCESS, A POLARIZER, A POLARIZING PLATE, AN OPTICAL FILM, AN IMAGE DISPLAY DEVICE, AND A CLEANING DEVICE

摘要

PURPOSE: A polarizer manufacturing method, a polarizer, a polarizing plate, an optical film, an image display device, and a cleaning device are provided to improve optical properties of the polarizer by preventing a film folding problem.;CONSTITUTION: A polarizer manufacturing method includes a cleaning process before performing a dye process. A film returned from a first pinch roll(21) passes a first guide roll(11) and a second guide roll(12). The film is dipped into a cleaning vessel and transferred to a second pinch roll(22). The film is washed with 1.2 to 2.9 times draw ratio using driving speed differences of the first pinch roll and the second pinch roll.;COPYRIGHT KIPO 2012