▎ 摘　　要

NOVELTY - The trouser has bottom seat portion (1) that is compounded with a built-in chip (6). The bottom seat portions on both sides are connected to a first spontaneous heating layer (5) and a second spontaneous heated layer (4) respectively. The first and second spontaneous heating layers are graphene fiber self-heating layers. The graphene fiber radiates from the heating layer, and the far infrared ray penetrates into the subcutaneous tissue to promote the temperature rise and rise to generate heat. The built-in chip is connected to the first and the second spontaneous heat dissipation layer. The top of the bottom seat is provided with a bottom groove, and the bottom groove is connected with the bottom groove of the top groove. USE - Self-heating menstrual trousers. ADVANTAGE - The self-heating menstrual period trousers is set to perfectly cover the umbilical portion, small abdomen and back waist, and the heating area covering surface is wider, which is set to effectively relieve the female menstrual period dysmenorrhea, body cold problem. The graphene product has the function of sterilizing and diminishing inflammation. The heat is enough, heated uniformly, the heating is fast, good health physical therapy effect, good ventilation property, and safety is environment-friendly. The blood circulation promotes blood circulation, accelerates substance exchange, and improves metabolism ability of body. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of self-heating menstrual period trousers. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of self-heating menstrual trousers. Bottom seat portion (1) Front waistline (2) Second spontaneous heated layer (4) First spontaneous heating layer (5) Built-in chip (6)