The invention relates to the technical field of hygienic products, and particularly discloses a special sanitary towel for a puerpera based on a phase-change material and a preparation method of the special sanitary towel. The product comprises a
surface layer, a flow guide layer, an absorption core body and a leakage-proof bottom layer which are sequentially overlapped, the
surface layer contains a microencapsulation
phase change material, the flow guide layer is of a double-layer structure of a sulfonylation carboxymethyl
chitin fiber hydrophilic layer and a
viscose fiber reverse osmosis resisting layer, and the absorption core body is formed by compounding a liquid rapid
diffusion layer with gradient pores and a
macromolecule water locking layer. The preparation method comprises the steps of microcapsule preparation, functional layer preparation, flow guide layer needling compounding and sectional type
hot pressing assembly forming, and sectional type
hot pressing is matched with
polyolefin hot melt adhesive to adapt to the characteristics of all the
layers. The product is suitable for the postpartum use of a puerpera, can realize rapid conduction
diffusion and stable latching of liquid, and meanwhile, adjusts the sensible temperature; the preparation method is high in process adaptability, the firm structure of the product can be guaranteed, the structural and
functional integrity of each functional layer is protected, and the overall stability of the product is excellent.