| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for removing a surface-treated coated film such as a hard coated film and antireflection coated film formed on the surface of plastic lens base material in a short period of time without damaging the plastic lens base material, to provide a removal method using film removal liquid of which the concentration of hydrogen fluoride is easily controlled and which requires to be replaced at low frequency and, further, to provide a manufacturing method for plastic lens for reusing the plastic lens base material from which the surface-treated coated film is removed by means of the removal method. <P>SOLUTION: For the coated film removal of plastic lens, an aqueous solution containing hydrogen fluoride and ammonium fluoride is used. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
