IN-LINE REUSING METHOD FOR CLEANING SOLUTION FOR PREPARING A POLIZER COMPRISING POTASSIUM IODIED AND BORIC ACID FOR PREPARING A POLIZER

摘要

The present invention relates to a method for in-line reusing a polarizer preparing cleaning solution including potassium iodide and boric acid. More specifically, the method of the present invention includes the steps of: recollecting cleansing solution including potassium iodide and boric acid, and storing the cleansing solution in a buffer tank in a washing facility for preparing a polarizer; introducing the stored cleansing solution into a film having selective penetrability according to a molecular weight and an electric charge, and separating a fraction including the potassium iodide and the boric acid from the cleansing solution; and inputting the fraction into the facility for preparing the polarizer and reusing the fraction to prepare the polarizer. Therefore, the method of the present invention can maximally recollect and reuse the effective ingredients like potassium iodide and boric acid, etc., thereby preventing waste of costs and a decrease in productivity for the polarizer.