| 摘要 |
<p>A process for manufacturing an electret article, comprising (1) a first transferring step of placing a dielectric article between first ion-repulsive and ion-attractive electrodes, a first potential difference being applied between the electrodes by a DC voltage; supplying first positive and negative ions from a first ion generating means between the article and the first repulsive electrode; and moving one of first ions from the repulsive to attractive electrodes, to transfer the ions on the article; and, (2a) a second transferring step of supplying second ions from a second ion generating means between the article and a second repulsive electrode which is apart from the article and located at a side opposite to the first repulsive electrode with respect to the article; and moving an ion having opposite-polarity to the transferred ion from the second repulsive electrode to a second attractive electrode located at a side opposite to the first attractive electrode with respect to the article, due to a second potential difference, to transfer the opposite-polarity ion on the article, the second potential difference being applied between the second electrodes by a DC voltage; or (2b) a second transferring step of supplying second ions from a second ion generating means located at a side opposite to the first repulsive electrode with respect to the article; and moving an ion having opposite-polarity of the transferred ion from the second ion generating means to the article, due to an attractive force of the article, to transfer the opposite-polarity ion on the article, is disclosed. The size and shape of the dielectric article are not limited, and temperature can be easily controlled. <IMAGE></p> |
