The disclosure relates to a device for making charged nanoparticles, the device includes: an atomizer configured to atomize a solution into micro-scaled droplets; a first electrode and a second electrode substantially parallel with and spaced from each other, a power supply configured to apply a voltage between the first electrode and the second electrode, at least one first through-hole is defined on the first electrode and at least one second through-hole is defined on the second electrode to allow the micro-scaled droplets to pass through.

Provided is a method for preventing color unevenness, white float and makeup collapse of a powder-containing cosmetic such as a foundation, applied to the skin.

A method for producing a coating on skin, comprising a step of electrostatically spraying a composition comprising component (a), component (b) and component (c) directly onto the skin (a) one or more volatile substances selected from the group consisting of water, an alcohol and a ketone, (b) a polymer having a film-forming ability, and (c) a powder.

Provided is a method for preventing color unevenness, white float and makeup collapse of a powder-containing cosmetic such as a foundation, applied to the skin.

A method for producing a coating on skin, comprising a step of electrostatically spraying a composition comprising component (a), component (b) and component (c) directly onto the skin (a) one or more volatile substances selected from the group consisting of water, an alcohol and a ketone, (b) a polymer having a film-forming ability, and (c) a powder.

The invention relates to an electrostatic atomizer for liquids, in particular, cosmetics, the atomizer comprising a housing, an electrical energy source, an activation mechanism, control electronics, a high-voltage source, a liquid tank, a delivery device and atomizer nozzles. The delivery device is arranged here between the liquid tank and the atomizer nozzles, the delivery device being connected to the liquid tank by a first line and the delivery device being connected to the atomizer nozzles by a second line, so that the delivery device sucks liquid out of the liquid tank and delivers it to the atomizer nozzles.

The invention relates to an electrostatic atomizer for liquids, in particular, cosmetics, the atomizer comprising a housing, an electrical energy source, an activation mechanism, control electronics, a high-voltage source, a liquid tank, a delivery device and atomizer nozzles. The delivery device is arranged here between the liquid tank and the atomizer nozzles, the delivery device being connected to the liquid tank by a first line and the delivery device being connected to the atomizer nozzles by a second line, so that the delivery device sucks liquid out of the liquid tank and delivers it to the atomizer nozzles.

The present application discloses an active ingredient generator including a first discharger defining a discharge space in which a first discharge having first energy is generated; and a second discharger which causes a second discharge having second energy larger than the first energy in a passage space through which allows passage of fluid flowing from the discharge space. The second discharge may be a glow discharge.

An apparatus for accumulating cross-aligned fiber in an electrospinning device, comprising a multiple segment collector including at least a first segment, a second segment, and an intermediate segment, the intermediate segment positioned between the first and second segment to collectively present an elongated cylindrical structure; at least one electrically chargeable edge conductor circumferentially resident on the first segment and circumferentially resident on the second segment; a connection point on the first segment and on the second segment, the connection points usable for mounting the elongated cylindrical structure on a drive unit to rotate around a longitudinal axis; the elongated cylindrical structure holding electrospun fiber substantially aligned with the longitudinal axis when the edge conductors are excited with a charge of opposite polarity relative to charged fiber, and attracting electrospun fiber on to its surface around the longitudinal axis at least when the edge conductors are absent a charge or grounded.

A method for producing a film of the present invention includes the step of electrostatically spraying a liquid composition directly on the surface of skin using an electrostatic spray device to form a film on the skin. The electrostatic spray device includes a container capable of storing the liquid composition, a nozzle configured to eject the liquid composition, a power supply configured to apply a voltage to the nozzle, and a voltage stabilizer configured to stabilize the voltage applied by the power supply to the nozzle. The liquid composition contains component (a): one or more volatile substances selected from alcohols and ketones, and component (b): a polymer having film formability.

An electrostatic sprayer device includes a housing, an electrostatic module inside the housing, and a reservoir having a cavity adapted to contain a fluid. A nozzle fluidly connected to the reservoir emits electro-statically charged fluid. A syringe assembly communicates with a fluid pathway that leads to the nozzle such that the nozzle can expel fluid from the syringe assembly in combination with the fluid from the reservoir.

The invention relates to an electrostatic atomizer for liquids, in particular, cosmetics, the atomizer comprising a housing, an electrical energy source, an activation mechanism, control electronics, a high-voltage source, a liquid tank, a delivery device and atomizer nozzles. The delivery device is arranged here between the liquid tank and the atomizer nozzles, the delivery device being connected to the liquid tank by a first line and the delivery device being connected to the atomizer nozzles by a second line, so that the delivery device sucks liquid out of the liquid tank and delivers it to the atomizer nozzles.