Pro-fragrances containing certain acetals and/or ketals, which may be used in detergent compositions for imparting residual fragrances to surfaces washed with aqueous solutions of said detergent. The fragrance is released by hydrolyzation of the pro-fragrance upon exposure of surfaces washed in solution of said compositions to a reduction in pH, thereby releasing a fragrance which is characteristic of one or more of the hydrolysis products and in certain preferred pro-fragrance compounds, which are believed to be novel.
含有某些
缩醛和/或酮的原
香料,可用于洗涤剂组合物中,使用所述洗涤剂
水溶液洗涤的表面具有残留香味。当被所述组合物溶液洗涤过的表面接触到 pH 值降低时,原
香料会
水解释放出香味,从而释放出一种或多种
水解产物和某些优选原
香料化合物特有的香味,这些化合物被认为是新颖的。