SU1416333A1 - Method and apparatus for ejaculating drops of printing ink - Google Patents

Abstract

The invention relates to the field of inkjet printing. The method comprises the operation of supplying a current pulse to the electrodes and passing this pulse directly through a liquid, heating the liquid to a vaporization temperature, forming a vapor jet and displacing the liquid from the nozzle. The device for implementing the method contains a tank with nozzles 6 in the front wall, which is filled with a multilayer of alternating metal plates - electrodes 2 and 4 and dielectric plates 3 and 5. Passing a current pulse directly through the liquid increases the speed of drop formation and reduces energy consumption, and the front Multilayer wall simplifies device design. 2 Sopf f-ly, 1 ill. S (l

Description

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; The invention relates to the technique of: recording information and can be used. used in high-speed printers unstressed deist: w.

: The aim of the invention is to improve speed and energy consumption.

The drawing shows the structure of the device that implements the proposed method,

I The device contains a reservoir 1 b of an electrically conductive dye liquid. The front wall of the tank consists of a multilayer structure of alternating plates — metal | 2, dielectric 3, metal I, and dielectric 5 °. In this multi-layer structure, a nozzle 6 of ejection of the painting fluid, ,, Plates 2 and 4, are control electrodes,

I The method is implemented in the device, iKoTOpoe works as follows; due to capillary force, the paint | liquid 1 is drawn into the channel and is held there by surface tension. When a pulse is applied; the voltage on the electrodes 2 and 4 is a current flowing through the dye liquid, it warms it to the boiling point | C by increasing the temperature, the resistance of the dye liquid decreases: the current rises and reaches its maximum; temperature causes the boiling liquid to boil and form

a vapor bubble 7 in the canapé, which pushes the coloring fluid onto the information carrier 8. This leads to a drop in the magnitude of the current,

Thus, the device self-regulates the duration and, accordingly, the energy required for emitting a coloring liquid.

Claims (1)

Invention Formula 1 "A method of emitting droplets of a dye liquid by heating an electrically conductive dye liquid to a vaporization temperature by applying a voltage pulse to the electrodes and displacing the liquid from the soyles with a steam bubble, characterized in that in order to increase the speed of the method and reduce energy costs by feeding voltage pulse is passed directly through a column of electrically conductive dye liquid enclosed in the nozzle between the electrodes 2, A device for emitting droplets of a coloring liquid, containing control electrodes, a reservoir with a coloring liquid, in the front wall of which there are nozzles, characterized in that, in order to simplify the design, the front wall is made of alternating metal plates electrodes and dielectric plates.