| abstract |
Provided is a light-blocking film capable of efficiently blocking ultraviolet rays in the long-wavelength region of 380 nm-400 nm by using a small added amount of ultraviolet absorber. The light-blocking film is characterized in containing one or more triazine compounds represented by general formula (1) as ultraviolet absorbers or having the triazine compound(s) applied. (In the formula, R1-R3 may be mutually the same or different, and represent linear or branched alkyl groups or the like having 1-12 carbon atoms. However, these alkyl groups and the like may be substituted by hydroxy groups or the like and may be interrupted by oxygen atoms, sulfur atoms, carbonyl groups, ester groups, amide groups, or imino groups. The substitution and the interruption may be combined. R4-R6 may be mutually the same or different, and represent alkyl groups having 1-8 carbon atoms or alkenyl groups having 2-8 carbon atoms.) |