Studies on Elementary Processes of Electrostatic Printing (Ⅱ): Electrical Dispersion of Liquid

DOI Web Site

Bibliographic Information

Other Title
  • 電子印刷に関する基礎研究(Ⅱ)
  • 電子印刷に関する基礎研究-2-液体の静電霧化について
  • デンシ インサツ ニ カンスル キソ ケンキュウ 2 エキタイ ノ セイデンムカ ニ ツイテ
  • —液体の静電霧化について—

Search this article

Abstract

Concerning the electrical dispersion of liquid into the air, size, number and amount of charge of dispersed particles were measured at different discharge currents. The results were found to be consistent with theoretically deduced relations, n=K1i (2-α) , v=K2i2 (α-1) , q=K3i (α-1) , Here, n is number of particles, v volume of each particles, q its amount of charge and i is discharge current. K1, K2, K3, and α are constants which are characteristic of liquid used, α is determined from the dependence of volume of liquid dispersed upon discharge current. The above equations are based on assumptions that all the dispersed particles are of the same size and there is no interaction between them. These relations can be used to choose a liquid to be employed for a given process utilizing the electrical dispersion. For instance, if we use liquids with α=1 we can expect that the electrical charge and the size of each dispersed particle will be determined only by properties of the liquids, and number of particles will be increased proportionally with the discharge current.<br>By means of a high speed photography, the aspect of dispersing was observed. A small volume of liquid was drawn out of the capillary tube containing the liquid by high electric tension and there formed a swinging fine thread. When the amplitude of swing grew large enough, the thread was broken into small droplets.

Journal

Details 詳細情報について

Report a problem

Back to top