▎ 摘　　要

NOVELTY - A sanitary napkin has multilayer composite structure composed of conventional sanitary napkin and photocatalytic material precursor, where the conventional sanitary napkin comprises wood pulp, polypropylene, polyethylene and viscose or cotton, and the photocatalytic material precursor comprises 0.3-0.5 pts. wt. macromolecular water-absorbing resin, 0.1-0.3 pts. wt. graphene, 0.1-0.3 pts. wt. polyethylene glycol and 0.1-0.3 pts. wt. carboxymethyl cellulose. USE - The sanitary napkin is useful for relieving dysmenorrhea, and promoting microcirculation of human body. ADVANTAGE - The sanitary napkin has high efficiency, excellent hydrophobicity and water-absorption property, carries quantum energy, changes macromolecular groups in sanitary napkins into micromolecular groups, and create hydrogen-rich, oxygen-rich and weakly alkaline water environment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the sanitary napkin comprising mixing charged photocatalytic material precursor and wood pulp evenly, combining the mixture with polypropylene, polyethylene, viscose or cotton to form a sanitary napkin through spunlace, and carrying out melt blowing and hot rolling processes to obtain the product.