SURFACE TREATMENT METHOD FOR GUIDE ROLL OF MANUFACTURING OPTICAL FILM

摘要

PURPOSE: A surface treatment method for a guide roll for manufacturing an optical film are provided to improve the plating efficiency and to ensure excellent uniformity, surface roughness, and mechanical strength. CONSTITUTION: A surface treatment method for a guide roll for manufacturing an optical film comprises following steps: processing an aluminum guide roll(S110); activating the surface of the aluminum guide roll by nickel activation pre-processing liquid(S120); electroplating the guide roll with nickel plating liquid by horizontally arranging and rotating the guide roll to an electroplating tub(S130); and adding an fluoride additive by horizontally arranging and rotating the guide roll to an electroplating tub(S140). [Reference numerals] (AA) Start; (BB) End; (S110) Processing an aluminum guide roll; (S120) Performing nickel activation on the surface; (S130) Horizontal rotation, nickel electroplating; (S140) Horizontal rotation, chrome electroplating;