Abstract: A recording device includes a recording head, a conveyance portion that conveys a liquid-ejected medium so that the liquid-ejected medium passes through a position facing the recording head, a supply portion for air, and an air blowing mechanism that is disposed on an upstream side of the recording head in a relative moving direction between the recording head and the liquid-ejected medium, the air blowing mechanism including an air blow-out port for blowing out air from the supply portion toward a gap between the recording head and the liquid-ejected medium. The air blow-out port includes a plurality of slits that are lined up in a direction intersecting the relative moving direction, and the plurality of slits are lined up in the direction intersecting the relative moving direction so that long sides of the adjacent slits have regions facing each other in a direction orthogonal to the long sides.

Abstract: An ultrafine bubble generating apparatus and an ultrafine bubble generating method capable of efficiently generating an ultrafine bubble-containing liquid with high purity are provided. In order to this, a heating element provided in a liquid is caused to generate heat, and film boiling is made on an interface between the liquid and the heating element. A film boiling bubble is generated by the film boiling, and ultrafine bubbles are thus generated near the film boiling bubble.

Abstract: A discharge apparatus includes a discharge unit configured to discharge a liquid to a medium, a suction unit, and a supply unit configured to supply a gas to the suction unit. The suction unit includes an opening facing the medium, and a suction groove including an arc-shaped inner wall surface inside the opening and configured to suck mist around the medium. An outlet portion configured to blow out the gas supplied from the supply unit toward the inner wall surface is provided in the opening.

Abstract: Provided is an ultrafine bubble generating apparatus that generates ultrafine bubbles by generating film boiling by causing a heater provided in a liquid to generate heat, the ultrafine bubble generating apparatus including: an element substrate including a first heater that generates the film boiling in the liquid and a second heater that is arranged adjacent to the first heater, in which the first heater and the second heater are driven in different timings.

Abstract: A recording device includes a recording head, a conveyance portion that conveys a liquid-ejected medium so that the liquid-ejected medium passes through a position facing the recording head, a supply portion for air, and an air blowing mechanism that is disposed on an upstream side of the recording head in a relative moving direction between the recording head and the liquid-ejected medium, the air blowing mechanism including an air blow-out port for blowing out air from the supply portion toward a gap between the recording head and the liquid-ejected medium. The air blow-out port includes a plurality of slits that are lined up in a direction intersecting the relative moving direction, and the plurality of slits are lined up in the direction intersecting the relative moving direction so that long sides of the adjacent slits have regions facing each other in a direction orthogonal to the long sides.

Abstract: A recording apparatus includes a supply portion for supplying an airflow, a blowing port that is formed in a slit-like form following a width direction orthogonal to a conveying direction of a discharged medium, for blowing out the airflow supplied from the supply portion, the blowing port being formed with a channel, through which the airflow flows, extending in a direction substantially perpendicular to a conveyance region of the discharged medium, from an inlet side at which the airflow is introduced, to an outlet side, and a supporting member provided on the inlet side of the blowing port to support opposing wall faces of the blowing port, while allowing passage of the airflow. The blowing port has a narrow portion that partially narrows a width of the channel, father on the outlet side than the supporting member of the wall faces forming the channel.

Abstract: Provided is an UFB generating apparatus and an UFB generating method capable of efficiently generating an UFB-containing liquid with high purity. The ultrafine bubble generating apparatus includes a generating unit that generates ultrafine bubbles in a liquid and a post-processing unit that performs predetermined post-processing on the ultrafine bubble-containing liquid generated by the generating unit. The generating unit generates the ultrafine bubbles by causing a heating element, which is provided in the liquid on which the pre-processing is performed, to generate heat to generate film boiling on an interface between the liquid and the heating element.

Abstract: The present invention provides a fine bubble generating apparatus capable of generating fine bubbles efficiently. The present invention includes a fluid flow passage that includes a narrow portion in at least a part thereof, a heating part capable of heating a liquid flowing through the fluid flow passage, and a controlling unit that controls the heating part. The controlling unit controls the heating part to generate film boiling in the liquid to generate ultrafine bubbles.

Abstract: Provided is a UFB generating apparatus that is capable of efficiently generating a UFB-containing liquid with high purity by controlling generation of UFBs in the liquid. A UFB generating apparatus includes a driving unit that drives a heating element included in a heating unit to generate film boiling in the liquid in contact with the heating element, and a control unit that controls driving conditions of the heating element by the driving unit.

Abstract: Provided is an UFB generating apparatus and an UFB generating method capable of efficiently generating an UFB-containing liquid with high purity. To this end, the ultrafine bubble generating apparatus includes a pre-processing unit that performs predetermined pre-processing on a liquid W and a generating unit that generates ultrafine bubbles in the liquid on which the pre-processing is performed. The generating unit generates the ultrafine bubbles by causing a heating element, which is provided in the liquid on which the pre-processing is performed, to generate heat to generate film boiling on an interface between the liquid and the heating element.

Abstract: A discharge apparatus includes a discharge unit configured to discharge a liquid to a medium a suction unit and a supply unit configured to supply a gas to the suction unit. The suction unit includes an opening facing the medium, and a suction groove including an arc-shaped inner wall surface inside the opening and configured to suck mist on the medium. An outlet portion configured to blow out the gas supplied from the supply unit toward the inner wall surface is provided in the opening.

Abstract: In the present invention, a UFB generating apparatus includes: a target concentration setting unit that sets a target concentration of ultrafine bubbles to be contained in a liquid; a driving unit that drives the heating element to cause film boiling in the liquid to generate the ultrafine bubbles; a generation time setting unit that sets a target generation time required for generating a predetermined amount of the liquid having the target concentration; and a controlling unit that controls the driving unit to adjust a generation speed of the ultrafine bubbles in accordance with the target concentration and the target generation time.

Abstract: An ultrafine bubble generating apparatus and an ultrafine bubble generating method capable of efficiently generating an ultrafine bubble-containing liquid with high purity are provided. In order to this, a heating element provided in a liquid is caused to generate heat, and film boiling is made on an interface between the liquid and the heating element. A film boiling bubble is generated by the film boiling, and ultrafine bubbles are thus generated near the film boiling bubble.

Abstract: Provided is an UFB generating apparatus and an UFB generating method capable of efficiently generating an UFB-containing liquid with high purity. The ultrafine bubble generating apparatus includes a generating unit that generates ultrafine bubbles in a liquid and a post-processing unit that performs predetermined post-processing on the ultrafine bubble-containing liquid generated by the generating unit. The generating unit generates the ultrafine bubbles by causing a heating element, which is provided in the liquid on which the pre-processing is performed, to generate heat to generate film boiling on an interface between the liquid and the heating element.

Abstract: The present invention provides a fine bubble generating apparatus capable of generating fine bubbles efficiently. The present invention includes a fluid flow passage that includes a narrow portion in at least a part thereof, a heating part capable of heating a liquid flowing through the fluid flow passage, and a controlling unit that controls the heating part. The controlling unit controls the heating part to generate film boiling in the liquid to generate ultrafine bubbles.

Abstract: Provided is an ultrafine bubble generating apparatus that generates ultrafine bubbles by generating film boiling by causing a heater provided in a liquid to generate heat, the ultrafine bubble generating apparatus including: an element substrate including a first heater that generates the film boiling in the liquid and a second heater that is arranged adjacent to the first heater, in which the first heater and the second heater are driven in different timings.

Abstract: Provided is an ultrafine bubble generating apparatus and an ultrafine bubble generating method capable of efficiently generating UFBs with high purity. To this end, a chamber is formed by providing a wall, a lid substrate, and an electrode pad on an element substrate in a form of a wafer.

Abstract: Provided are an ultrafine bubble generating apparatus and an ultrafine bubble generating method that can efficiently generate a UFB-containing liquid with high purity and can extend lifetime of the apparatus additionally. To this end, a shape of a bubble during generation thereof is partially restricted by forming walls around a heating element, and a position in which the bubble disappears is displaced from a position of the heating element.

Abstract: An ultrafine bubble generating apparatus that generates ultrafine bubbles by causing a heating element to generate film boiling in a liquid, includes: an element substrate including a heating part provided with multiple heating elements, in which, in the case where an energy for generating the film boiling by each of the multiple heating elements is set to a first value, the element substrate being configured so that the energy inputted to the heating element driven in the heating part is equal to or more than a value obtained by multiplying the first value by a second value and falls within a range from the value to a value obtained by multiplying the first value by a sum of the second value and 0.3, the second value being 1 or more.

Abstract: An ultrafine bubble generating apparatus that generates ultrafine bubbles by causing a heating element to generate film boiling in a liquid includes: an element substrate including a heating part provided with multiple heating elements, in which the element substrate is configured to suppress variation of energies inputted to the heating elements in the heating part.