An apparatus for preparing a cosmetic composition containing an emulsion substance formed by instant emulsification through a microfluidic channel is provided. The apparatus includes a housing defining the appearance of the apparatus and installed with a pump on one side, the pump being operated by a user; an external-phase chamber provided in the housing, and storing an external-phase fluid forming the external phase of the emulsion substance; a dispersed-phase chamber provided in the housing, and storing a dispersed-phase fluid forming the dispersed phase of the emulsion substance. The apparatus further includes a microfluidic channel providing a path for the external-phase fluid and the dispersed-phase fluid to flow for forming the emulsion substance by combining the external-phase fluid with the dispersed-phase fluid; and a tube for discharging the emulsion substance from the microfluidic channel.

Various implementations include a feedback type and jet interaction-type fluidic oscillator devices with atomized output. The device includes first and second fluidic oscillators. Each of the first and second fluidic oscillators include an interaction chamber, a fluid supply inlet, an outlet nozzle, and first and second feedback channels. The first feedback channel of the first fluidic oscillator share a common intermediate portion such that the first feedback channels are in fluid communication with each other, causing the fluid streams exiting the outlet nozzles of the first fluidic oscillator and second fluidic oscillator to oscillate in phase with each other. The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other, creating an atomized spray.

Various implementations include a feedback type and jet interaction-type fluidic oscillator devices with atomized output. The device includes first and second fluidic oscillators. Each of the first and second fluidic oscillators include an interaction chamber, a fluid supply inlet, an outlet nozzle, and first and second feedback channels. The first feedback channel of the first fluidic oscillator share a common intermediate portion such that the first feedback channels are in fluid communication with each other, causing the fluid streams exiting the outlet nozzles of the first fluidic oscillator and second fluidic oscillator to oscillate in phase with each other. The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other, creating an atomized spray.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device 200 configured to remove air from a fluid and comprising the nozzle.

The present invention relates to a nozzle for an air trapping device configured to remove air from a fluid, the nozzle comprising a body having an input opening configured to receive the fluid and an output opening configured to distribute the fluid along an edge of the output opening, wherein the edge comprises a control element configured to reduce surface tension of the fluid. The present invention further relates to an air trapping device 200 configured to remove air from a fluid and comprising the nozzle.

A device configured to jet one or more droplets of a viscous medium may include a housing having an inner surface at least partially defining a jetting chamber configured to hold the viscous medium, and a flexible jetting nozzle. The flexible jetting nozzle may include a flexible conduit extending between an inlet orifice in an inner surface to an outlet orifice in an outer surface. The device may cause an increase of internal pressure of viscous medium in the jetting chamber to force one or more droplets of viscous medium through the flexible conduit and through the outlet orifice. The flexible jetting nozzle may include a flexible material. The flexible jetting nozzle may deform, to cause a cross-sectional area of the flexible conduit to dilate, in response to the increase of the internal pressure of the viscous medium in the jetting chamber.

Various implementations include fluidic oscillator devices with three-dimensional output. The devices define an inner channel having an interaction chamber, fluid supply inlet, outlet nozzle, and first and second feedback channels. The fluid supply inlet introduces a fluid stream into the interaction chamber. The fluid stream exits the interaction chamber through the outlet nozzle. The first and second feedback channels are in fluid communication with the interaction chamber. The walls of the interaction chamber are configured to allow fluid from the fluid stream to flow into the first and second feedback channels and to cause the fluid stream to sweep between the walls of the interaction chamber. The sweeping of the fluid stream between the wails of the interaction chamber causes the fluid stream exiting the outlet nozzle to sweep. The structure of the inner channel of the device causes the exiting fluid stream to sweep three-dimensionally.

Various implementations include fluidic oscillator devices with three-dimensional output. The devices define an inner channel having an interaction chamber, fluid supply inlet, outlet nozzle, and first and second feedback channels. The fluid supply inlet introduces a fluid stream into the interaction chamber. The fluid stream exits the interaction chamber through the outlet nozzle. The first and second feedback channels are in fluid communication with the interaction chamber. The walls of the interaction chamber are configured to allow fluid from the fluid stream to flow into the first and second feedback channels and to cause the fluid stream to sweep between the walls of the interaction chamber. The sweeping of the fluid stream between the wails of the interaction chamber causes the fluid stream exiting the outlet nozzle to sweep. The structure of the inner channel of the device causes the exiting fluid stream to sweep three-dimensionally.

An apparatus and a method for manufacturing instantly emulsified cosmetics is disclosed. The apparatus comprises: a housing; a pump in the housing for discharging an instantly emulsified emulsion outside of the housing; a first container in the housing for storing an internal fluid; a second container in the housing for storing a functional fluid including a functional raw material; a third container in the housing for storing an external fluid; a channel part in the housing for receiving the external fluid, the internal fluid and the functional fluid generate an emulsion; and a tube provides the pump with the emulsion generated in the channel part, wherein the channel part includes: a first channel for mixing the internal fluid and the functional fluid to generate a mixed fluid; and a second channel for mixing the mixed fluid provided from the first channel and the external fluid to generate an emulsion.

A spray applicator (1) for spraying a fluid onto a web (W) of material has a first group of spray nozzles (10A) arranged along a first axis (FA) and a second group of spray nozzles (11A) arranged along a second axis (SA). The first (FA) and second (SA) spray nozzle axes are arranged on the same side of a plane in which the web (W) is run. Each spray nozzle (10A, 11A) has an elongated spray opening configured to spray fluid in a direction towards the web (W). The first spray nozzle opening of the first group of spray ozzles (10A) has an inclination angle which differs from the second nozzle opening inclination angle of the second group of spray nozzles (11A).