SPEAKER DIAPHRAGM AND SPEAKER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a speaker diaphragm allowing excellent balance between Young's modulus and internal loss, and a speaker device including the same.SOLUTION: The speaker diaphragm is formed by laminating a first fiber entangled body constituting the diaphragm and a second fiber entangled body having a fiber in which a polyester resin having a lactic acid represented by Formula (1) below adheres at least partially to a main chain. -CO-CH(CH)-O- ... (1)SELECTED DRAWING: None