A Portable Airflow Assisted Electrospinning Mask Apparatus

Abstract

The invention relates to a portable airflow-assisted electrospinning facial mask instrument, which includes a hand-held insulating shell, a dry battery pack, a power supply wire, a power switch, a conversion wire, a high-voltage converter, a high-voltage wire, an airflow handle, an upper end cover, an air hole, and a liquid storage bottle, front end cover, wire outlet hole, air hole, metal catheter, blade, blade shaft, gear box; the dry battery pack is used as a power supply, and is converted by a high-voltage converter to generate high-voltage static electricity; the liquid gravity in the liquid storage bottle and Atmospheric pressure pushes the spinning liquid without additional driving force; by pressing the airflow handle, the gear inside the gearbox is driven to rotate, thereby driving the blades to rotate to generate airflow; the airflow passes through the air hole at the front end of the hand-held insulating shell and the silk outlet on the front end cover The hole assists the spinning of the liquid at the mouth of the metal catheter; the device is easy to carry, easy to operate, and has high spinning efficiency. The airflow assist is beneficial to weaken the electrostatic interference and fiber blockage near the silk outlet, and realize the directional deposition of fibers.

Description

technical field [0001] The invention relates to a hand-held and portable electrostatic spinning device, which can quickly prepare facial masks with airflow assistance, and belongs to the technical field of electrostatic spinning. Background technique [0002] Electrospinning technology is one of the effective methods for preparing nanofiber membranes. Its principle can be briefly described as that the spinning solution forms a charged jet under the action of a high-voltage electric field and is ejected from the nozzle. Stretching, solvent volatilization, drying, and solidification at the same time to form nanofibers; nanofiber membranes prepared by electrospinning technology have the characteristics of large specific surface area, large aspect ratio, and high porosity; in biological tissue engineering, medical materials, protective clothing and Masks, new energy, functional devices and other fields have shown great application potential. [0003] At present, there are two t...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two trends in the research of electrospinning technology: one is the precise deposition positioning of fibers. Due to the whipping and unstable movement of the electrospinning process, it is not conducive to the directional and precise deposition of the jet. Therefore, an auxiliary fiber directional deposition is developed. The advanced electrospinning equipment is very meaningful; the second is industrial large-scale production. In practical applications, the fiber membrane is generally prepared first, and then transferred to the use site. The transfer process and storage of the fiber membrane are difficult. At the same time, the existing electrospinning equipment is large in size and not easy to carry, and has a strong dependence on external power supply. Therefore, it is very necessary to develop an electrospinning equipment that is not limited by external power supply and is easy to carry and can be directly sprayed.

[0004] However, most of the current electrospinning equipment is bulky and inconvenient to carry, and has disadvantages such as easy blockage of the needle during the spinning process, and inability to directional deposit of fibers; in view of the above problems, small portable electrospinning equipment has appeared on the market, such as the publication of Chinese patent CN108560066A A hand-held portable electrospinning device can directly spray nano- or micron-scale filamentous materials on various surfaces (such as skin, large objects, etc.); however, this device uses a single needle for spinning, and the spraying process takes a long time , low efficiency and easy blockage of the needle; the hand-held electrospinning device disclosed in Chinese patent CN203754859U does not need a spinning solution driving device, and directly uses the self-weight of the liquid in the liquid reservoir to provide spinning solution to the needle through the solution channel, but the device does not Point out how the liquid reservoir communicates with the atmosphere and whether there is a problem of solvent volatilization; Chinese patent CN108441972A discloses an airflow-assisted hand-held portable electrospinning equipment and overcomes existing technical problems, and achieves directional deposition of fibers under the action of airflow assistance. However, the equipment operator needs to manually press the piston handle tail end of the disposable syringe, which will lead to poor control of the propulsion rate and flow rate of the spinning solution, which will affect the quality of electrospinning; the electrospinning device announced by Chinese patent CN110670150A adopts The hand-operated portable high-voltage power supply provides the required high-voltage power for the electrospinning process, and can continue to work in a power-off environment. However, due to the unstable voltage used, the entire spinning distance is short and the fiber yield is low. , poor practicality

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