| 摘要 |
PURPOSE:To suppress static trouble due to abrasion and friction, and to display an original electret function sufficiently by compounding specific electret cloth and specific electricity-inhibiting cloth. CONSTITUTION:Electret composite cloth is formed by compounding electret cloth 2a having the density of electric charges of the surface of 1X10<-10>C/cm<2> or more and electricity-inhibiting cloth 3a having the density of charged electric charges at the time of friction of 9X10<-10>C/cm<2> or more. Various systems such as single compound, sewing, thermal adhesion, bonding by adhesives, ultrasonic bonding, etc., can be used as a compounding method. Consequently, static trouble due to abrasion and friction is suppressed, and an original electret function is displayed sufficiently. Polypropylene, polyethylene, etc., are employed as electret cloth, and electricity-inhibiting fiber is used as electricity-inhibiting cloth, and an electricity inhibitor is mixed. Stainless fiber and carbon fiber are employed as electricity-inhibiting fiber. |
