抄録
The photofading behavior of a Kaki polyphenol on cellulose was investigated. The contribution of auto-oxidation, singlet oxygen and superoxide ion to that fading was suggested. Various nickel arylsulfonates were prepared, and the protecting effect of these nickel salts was examined towards this color. The photofading rate was remarkably suppressed in the presence of nickel salts, while the addition of UV absorbers and conventional stabilizers afforded little retardation of the rate of fading.
The effect of the representative compounds against the fading of this color has also been examined on cotton fabrics. The results provided a valuable method for improving the light fastness of dyed fabrics. It was proposed that nickel complexes of 1-naphtol-8-sulfonic acid and its derivatives can be applied as effective stabilizers against the fading of a Kaki polyphenol.
