abstract |
(57) [Summary] [Purpose] To reduce or eliminate offensive odors and offensive odors when processing sulfur-containing lenses. [Structure] At least one compound selected from β-ionone, isoamyl isovalerate, methionol, n-amyl acetate, 2-phenyl-2-propanol, benzyldimethylcarbinol, isopulegol or eucalyptus oil is added to a sulfur-containing plastic lens. Include. [Effect] Reduces or eliminates offensive odors and off-flavors peculiar to sulfur. As a result, the lens can be processed without the operator feeling uncomfortable. |