Process for making perfume-impregnated hydrogel-forming absorbent polymers

摘要

The present invention is directed to a process for making a perfume-impregnated hydrogel-forming absorbent polymer wherein release of a perfume smell is triggered by dynamic swelling force of the polymer when the polymer is wetted, which comprises the steps of: (i) mixing a solid carrier and a perfume with reaction intermediates of hydrogel-forming absorbent polymer before the gelation point of polymerization of the hydrogel-forming absorbent polymer, (ii) forming the perfume-impregnated hydrogel-forming absorbent polymer, and (iii) drying the perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to such perfume-impregnated hydrogel-forming absorbent polymer. The present invention further relates to a disposable absorbent article comprising such perfume-impregnated hydrogel-forming absorbent polymer.