METHOD FOR MAKING PERFORATION BLEACHING PATTERNS ON A POLARIZING FILM

摘要

The present invention relates to a method for manufacturing a polarizing film having a bleaching pattern formed thereon which comprises the following steps: (1) heating a polarizing film; (2) reacting an ink composite to be bleached by discharging the ink composite through an inkjet head of an inkjet printer in the heated polarizing film; and (3) neutralizing the bleached polarizing film. The discharging amount of the ink composite in the step 2 is 0.02-0.5 ml/cm^2 per unit area of the heated polarizing film.