An electrostatic spray device includes a liquid sprayer including a nozzle that spouts a liquid; a voltage applicator that applies a voltage between the liquid sprayer and a heteropolar portion functioning as a pole opposite a pole of the liquid sprayer to generate an electrostatic force for causing the liquid to separate from a distal end of the nozzle in a charging state; and a stabilization electrode that maintains a stable spraying state of the liquid even when a pressure is applied to the liquid to supply the nozzle with the liquid. The stabilization electrode has an electric potential identical to an electric potential of the liquid sprayer, and is disposed near the nozzle such that a jet portion formed at a front of the nozzle by a linear extension of the liquid has a length longer than a length of the jet portion before the stabilization electrode is provided.

An electrostatic spray device includes a liquid sprayer including a nozzle that spouts a liquid; a voltage applicator that applies a voltage between the liquid sprayer and a heteropolar portion functioning as a pole opposite a pole of the liquid sprayer to generate an electrostatic force for causing the liquid to separate from a distal end of the nozzle in a charging state; and a stabilization electrode that maintains a stable spraying state of the liquid even when a pressure is applied to the liquid to supply the nozzle with the liquid. The stabilization electrode has an electric potential identical to an electric potential of the liquid sprayer, and is disposed near the nozzle such that a jet portion formed at a front of the nozzle by a linear extension of the liquid has a length longer than a length of the jet portion before the stabilization electrode is provided.

Provided is a method for forming a good fibrous coating on a target surface even in a high-humidity environment when electrostatically spraying is performed directly on the target surface such as skin.

A composition for forming a coating of fibers on a target object by electrostatic spraying, comprising the following components (a), (b), (c) and (d): (a) 1 mass % or more and 45 mass % or less of a polymer having a film-forming ability; (b) 45 mass % to 95 mass % of one or more volatile substances selected from the group consisting of an alcohol and a ketone; (c) a conductivity controlling agent to control the conductivity of the composition to 8 S/cm or more and 300 S/cm or less; and (d) 0.2 mass % or more and 25 mass % or less of water.

An electrospray atomizing device that sprays at a constant rate comprises a main unit containing a circuit board, an electrode plate, liquid tanks and syringes. The electrode plate includes the sealed liquid tanks and the syringes, and the circuit board connects electric current to the electrode plate and the syringes. The present invention further includes a power mechanism and a dosing device. The power mechanism drives a screw to ascend or descend, pushing the pistons of the dosing device through a speed changer. The syringes are connected with the liquid tanks. When the pistons are linked by the power mechanism and the speed changer to ascend, the liquid in the liquid tanks is sprayed at a constant rate through the syringes, forming mist which carries negative ions. When the pistons descend, the ambient liquid is sucked into the liquid tanks through the syringes, waiting for a next electrospray.

An electrospray atomizing device that sprays at a constant rate comprises a main unit containing a circuit board, an electrode plate, liquid tanks and syringes. The electrode plate includes the sealed liquid tanks and the syringes, and the circuit board connects electric current to the electrode plate and the syringes. The present invention further includes a power mechanism and a dosing device. The power mechanism drives a screw to ascend or descend, pushing the pistons of the dosing device through a speed changer. The syringes are connected with the liquid tanks. When the pistons are linked by the power mechanism and the speed changer to ascend, the liquid in the liquid tanks is sprayed at a constant rate through the syringes, forming mist which carries negative ions. When the pistons descend, the ambient liquid is sucked into the liquid tanks through the syringes, waiting for a next electrospray.

A liquid dispensing system for dispensing highly viscous liquids such as lubricating oil. The system includes a nozzle body and elongated electrode that define an annular liquid flow passage communicating with a protruding conically configured terminal end of the electrode. An end cap of the nozzle body defines a plurality of circumferentially spaced discharge orifices about the electrode for controlling the discharge of electrically charged liquid onto the terminal end of the electrode for direction therefrom in a thin line, having a width of less than 0.06 inches.

A liquid dispensing system for dispensing highly viscous liquids such as lubricating oil. The system includes a nozzle body and elongated electrode that define an annular liquid flow passage communicating with a protruding conically configured terminal end of the electrode. An end cap of the nozzle body defines a plurality of circumferentially spaced discharge orifices about the electrode for controlling the discharge of electrically charged liquid onto the terminal end of the electrode for direction therefrom in a thin line, having a width of less than 0.06 inches.

An electrostatic atomizing apparatus includes an air flow path, a humidifier, and electrode section, and a control unit. The air flow path has an air intake port and an air exhaust port. The humidifier includes a portion of the air flow path and humidifies air taken in through the air intake port. The electrode section includes a portion of the air flow path and produces charged particulate water by causing water in the air humidified by the humidifier to condense on an electrode and applying voltage to the electrode. A flow rate of the air in the air flow path is regulated in accordance with at least one of humidity and temperature of the air taken in through the air intake port.

A method for applying a medical treatment solution to a treatment site of a patient, that includes removably attaching a syringe assembly so that the syringe assembly is in communication with a pathway that leads to at least one nozzle; charging the medical treatment solution of the syringe assembly; and expelling the charged medical treatment solution to the treatment site.

A method for applying a medical treatment solution to a treatment site of a patient, that includes removably attaching a syringe assembly so that the syringe assembly is in communication with a pathway that leads to at least one nozzle; charging the medical treatment solution of the syringe assembly; and expelling the charged medical treatment solution to the treatment site.