added to make a total amount of 1 kg these semiconductor materials were printed on cotton knit elastic fabric by the use of a 120 mesh screen and after drying and curing it was cut into a suitable size and the non printed side was attached to a band using elastic substrate cloth spuntex knit fabric etc through a hook and loop fastener to obtain a final product 50 g of a cellulose reacting type resin 10 g of complex metal salt base catalyst 10 g of polyolefinic derivative 20 g of germanium and 60 g of silicon were mixed adding water to make a total amount of 1 kg these semiconductor materials were impregnated into cotton sheeting dyed in solid color by the use of a mangle of ordinary dye adjustment equipment wet pick up 80 followed by drying in a drier and curing in a baking machine 30 g of germanium 30 g of silicon and 100 cc of water were mixed with an acrylate copolymer and a foaming agent to make a total amount of 1 kg these semiconductor substances were printed in spots with a diameter of about 5 10 mm with a total printed area of about 50 and after drying subjected to a curing treatment to foam the spots into a raised state the semiconductor material which is deposited on cloth acts on the human body in the manner explained below when the human body and germanium are brought into contact with each other a potential difference of about 0 1 v is produced therebetween if the mean distance d between.