The definition and classification of sanitary napkin

Sanitary napkin is a kind of high polymer and high polymer composite paper formed by cotton, non-woven fabric, paper pulp or the complex of above materials, mainly used as sanitary products for women' menstrual period. It is divided into three layers from inside to outside , they are surface layer, absorption core and bottom layer. It has two "ears" at the side, mainly used to prevent side leakage. When used, the middle paper tape is torn off first, and the glue side sticks to the middle of the underwear.

According to the materials, the sanitary napkin is divided into there types: dry mesh sanitary, soft cotton sanitary and pure cotton sanitary. The main material of dry mesh sanitary is polyethylene(PE). The main material of soft cotton sanitary is polypropylene(PP). The main material of pure cotton sanitary is non-woven fabric.