The electronic equipment and the mobile which use the speaker and the same speaker which use the diaphragm and the same diaphragm which for the speaker are produced with the production manner, and this production manner of the diaphragm for the speaker

摘要

P To strike a balance between the improvement in sound quality of a speaker and the decrease in manufacturing costs. PSOLUTION: A method of manufacturing a diaphragm for speakers by papermaking and molding includes: a material throwing-in process ST1 for throwing pulp, namely a material of the diaphragm for speakers and in a beater containing water; a beating process ST2 for beating the pulp; a mixing process ST3 for mixing a material including cellulose of natural fiber; a papermaking process ST4 for making in a diaphragm shape; and a DRY process ST5 for drying the diaphragm. In the mixing process and water-dispersive polyisocyanate is mixed further. PCOPYRIGHT: (C)2010 and JPO& INPIT