Abstract
Precise fineness measurement for a high stiffness staple fiber is difficult by a conventional vibration type fineness meter because the conventional fineness meters are based on the vibration of a string, i.e., a long body without stiffness. Thus, we have developed a new electrostatic vibration type full-digital fineness meter based on the theory of bending vibration. The fineness meter was also designed to automatically measure the fineness at an optimal condition for each sample fiber and to effectively reduce the data noise by a numerical method. We measured the fineness of several fibers by the new fineness meter. The new fineness meter was confirmed to give a quite accurate value of fineness compared to the conventional type fineness meters.
