CN107687028A - A kind of Electrospun nano-fibers facial mask preparation method and preparing instrument - Google Patents

Abstract

The invention discloses a method for preparing an electrospinning nanofiber facial mask and a preparation instrument, wherein, the method for preparing an electrospinning nanofiber facial mask can directly produce a nanofiber facial mask on the skin, which can be used immediately after making, not only saves Eliminate the packaging and transportation of nanofiber masks, reduce costs, prevent the loss of active ingredients in nanofiber masks, and make nanofiber masks that meet individual requirements as needed. The electrospinning nanofiber mask preparation instrument for realizing the above-mentioned electrospinning nanofiber mask preparation method includes a shell and an electrostatic high voltage generating device arranged in the shell, an electrospinning film forming device, a liquid storage device, and a storage device. The spinning liquid in the liquid device is transported to the conveying device and control module of the electrospinning film forming device; the electrospinning nanofiber mask preparation instrument can not only manufacture the electrospinning nanofiber mask on site, but also is convenient for users to carry and operate.

Description

A preparation method and preparation instrument of electrospinning nanofiber mask

technical field

The invention relates to a preparation method and equipment for a nanofiber facial mask, in particular to a preparation method and a preparation instrument for an electrospinning nanofiber facial mask.

Background technique

Beauty nanofiber facial mask is a convenient skin care product for external application, and its essence is a transdermal drug delivery system for the active ingredients in nanofiber facial mask. The transdermal drug delivery system is a drug delivery method in which the drug is absorbed through the skin through the capillaries at a certain penetration rate and enters the circulatory system in the body to produce drug effects. To achieve the purpose of beauty treatment for cosmetic nanofiber facial masks, the key lies in the fact that the active ingredients have a certain penetration rate when absorbed through the skin. Nanofiber materials have the characteristics of small fiber size, large specific surface area, and excellent pore structure, so they have strong absorption and penetration, which is conducive to drug diffusion and dissolution, and improves the ability of transdermal absorption. At the same time, nanofiber masks can also The flexible and effective adjustment of the load of active ingredients greatly improves the application value of the nanofiber mask.

Electrospinning has become an excellent method for preparing nanofibrous materials due to the advantages of wide selection of materials and good uniformity of prepared fibers. Electrospinning nanofiber mask uses electrospinning technology to directly add nutrients to nanofibers. This nanofiber mask is used in the form of nanofiber membranes. Nanofibers are composed of cosmetic active ingredients and carrier polymers. tens to hundreds of nanometers. Compared with traditional nanofiber masks, electrospun nanofiber masks have a higher active ingredient loading rate and better penetration and absorption effects.

In the prior art, electrospinning equipment is used to make a nanofiber mask, and then the nanofiber mask is attached to the skin during use. The shortcomings of its existence are: 1. The produced nanofiber facial mask needs to be stored, and the storage of the nanofiber facial mask has relatively high environmental requirements, and the storage is difficult and the production cost is high. 2. Users can only choose the nanofiber mask that has been produced for use, and cannot adjust the active ingredients of the nanofiber mask according to their own skin characteristics and needs, and cannot achieve personalized matching.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing an electrospinning nanofiber mask. The method for preparing an electrospinning nanofiber mask can directly produce a nanofiber mask on the skin, which is ready-to-use , not only can save the packaging and transportation of nanofiber masks, reduce costs, prevent the loss of active ingredients in nanofiber masks, but also make nanofiber masks that meet individual requirements according to needs.

Another object of the present invention is to provide an electrospinning nanofiber mask preparation instrument for realizing the above-mentioned electrospinning nanofiber mask preparation method. The fiber mask is convenient for users to carry and operate.

The technical scheme that the present invention solves the problems of the technologies described above is:

A method for preparing an electrospinning nanofiber facial mask, comprising the following steps:

(1) Inject the prepared spinning solution into the liquid storage bottle of the electrospinning nanofiber mask preparation instrument;

(2) Clean the face to be applied with the nanofiber mask;

(3) The user is in contact with the metal conductor in the electrospinning nanofiber facial mask preparation instrument; the spinneret in the electrospinning nanofiber facial mask preparation instrument is aimed at the face, starts the electrospinning nanofiber facial mask preparation instrument, sprays The spinning head sprays the spinning solution onto the skin of the face;

(4) Evenly spray the spinning solution onto the skin of the face, solidify after the solvent volatilizes to form a nanofiber mask and deposit it on the face.

Preferably, in step (2), cleaning the face to be applied with the nanofiber mask is specifically applying toner to the face, so that the nanofiber mask fits better with the skin of the face and promotes the absorption of active ingredients.

Preferably, in step (3), the user holds the electrospinning nanofiber mask preparation instrument with his hand, and contacts the electrostatic high-voltage negative electrode on the surface of the electrospinning nanofiber mask preparation instrument.

Preferably, in step (3), when spinning, the distance between the spinneret and the face is 10-30cm. The effect of the fiber mask is relatively poor, the distance is too long, and the electric field strength is too small to form a nanofiber mask.

Preferably, in step (3), during spinning, a face mask is used to cover other parts of the face other than the parts where the nanofiber mask needs to be applied. In this way, the spinning solution can be prevented from being sprayed into the eyes, nose, mouth, hair and other places.

An electrospinning nanofiber mask preparation instrument for realizing the above-mentioned electrospinning nanofiber mask preparation method, comprising a casing and an electrostatic high voltage generating device arranged in the casing, an electrospinning film forming device, and a spinning solution for storing The liquid storage device, the delivery device and the control module that transport the spinning liquid in the liquid storage device to the electrospinning film forming device; wherein,

The electrospinning film forming device includes a spinneret, a metal gasket arranged on the spinneret and a metal conductor arranged on the surface of the shell, the spinneret is provided with a spinneret hole, and the spinneret is arranged on on the shell;

The electrostatic high-voltage generating device includes a DC power supply and a DC high-voltage inverter, wherein the DC power supply is connected to the DC high-voltage inverter, the positive pole of the DC high-voltage inverter is connected to the metal gasket, and the negative pole is connected to the DC high-voltage inverter. the metal conductor connection;

The liquid storage device includes a liquid storage bottle, and the bottom of the liquid storage bottle is connected to the spinneret through the first delivery pipeline;

The conveying device is composed of a micropropelling pump, the micropropelling pump includes a pump body and a propelling rod, the propelling rod is provided with a piston, and the piston on the propelling rod matches the liquid storage bottle;

The control module is used to control the work of the micro propulsion pump and the DC high voltage inverter, and the micro propulsion pump is powered by a DC power supply.

The operating principle of the electrospinning nanofiber facial mask preparation instrument for realizing the above-mentioned electrospinning nanofiber facial mask preparation method of the present invention is:

When working, the user injects the prepared spinning solution into the liquid storage bottle; starts the DC high-voltage inverter and the micro propulsion pump, and the user holds the electrospinning nanofiber mask preparation instrument in his hand and contacts the metal conductor on the shell At this time, the static high-voltage positive pole generated by the DC high-voltage inverter acts on the metal gasket, and the negative pole acts on the human body. At a certain distance, an electrostatic field is formed between the two, and the spinning solution at the end of the spinneret hole of the nozzle forms a Taylor cone-shaped droplet. When the electric field force of the electrostatic field is greater than that of the liquid at the end of the spinneret hole When the surface tension of the droplets is high, the droplets will form a jet, and the spinneret will spray nanofibers to the face, and the nanofibers will be sprayed on the face by moving the electrospinning nanofiber mask preparation instrument. These nanofibers are spun and deposited on different parts of the face, and can be solidified to form a nanofiber mask after the solvent evaporates.

Preferably, the number of liquid storage bottles in the liquid storage device is multiple, the piston of the micro-push pump is matched with one of the liquid storage bottles, and the liquid storage bottle matched with the piston of the micro-push pump is the storage liquid for injection. The remaining liquid storage bottles are liquid storage bottles for liquid storage; the liquid storage bottles for liquid storage are respectively connected with the bottom of the liquid storage bottle for injection through the second delivery pipeline, and each liquid storage bottle is connected with the liquid storage bottle for injection A solenoid valve is provided between the bottles to control the on-off of the second delivery pipeline between the two. The solenoid valve is connected to the control module, and the control module is connected to a mode switch for selecting a specific storage bottle for liquid storage. switch.

The advantage of the above-mentioned preferred scheme is that spinning solutions of different properties can be stored in a plurality of liquid storage bottles to prepare nanofiber facial masks with different functions, such as moisturizing nanofiber facial masks, whitening nanofiber facial masks, and speckle-removing nanofiber facial masks. Fiber mask, etc.; its working principle is: select a specific mode through the mode switch, specifically, the control module controls the solenoid valve on the specific liquid storage bottle to open and communicate with the injection liquid storage bottle, such as selecting the moisturizing mode, Then the electromagnetic valve on the liquid storage bottle of the spinning solution containing the moisturizing active ingredient will be opened; at this time, the piston on the micro push pump goes up, so that a vacuum is formed inside the liquid storage bottle for injection, and the liquid storage bottle is used for storage. The spinning solution in the bottle enters the liquid storage bottle for injection, and then the solenoid valve is closed; then the selected spinning solution can be used to prepare a nanofiber mask.

Preferably, the casing is provided with a power switch for starting or stopping the DC high-voltage inverter, and the metal conductor is arranged on the surface of the power switch. In this way, in the process of operating the power switch to start the DC high-voltage inverter, the human hand is in contact with the metal conductor, as long as the hand is kept in contact with the metal conductor, the nanofiber mask can be prepared, which is more convenient to use.

Preferably, the control module is also connected with an electrostatic high-voltage adjustment knob for adjusting the output voltage of the DC high-voltage inverter and a speed adjustment knob for adjusting the injection speed of the micro-push pump, the electrostatic high-voltage adjustment knob and the speed The adjusting knob is arranged on the surface of the casing. The output voltage of the DC high-voltage inverter can be adjusted through the electrostatic high-voltage adjustment knob, so as to obtain a uniform and stable nanofiber mask. The injection speed of the micro-push pump can be adjusted through the speed adjustment knob, so as to control the time for applying the nanofiber mask on the face.

Preferably, the micro-push pump is provided with a sealing sleeve at the piston, and the sealing sleeve is wrapped on the piston. The purpose is to ensure that the working environment of the micro-propellant pump is in a vacuum state, so that when the micro-propellant pump drives the propelling rod to move upward, a negative pressure is formed between the piston and the liquid storage bottle for injection, so that the The spinning solution reaches the liquid storage bottle for injection through the second delivery pipeline. During the downward movement of the propulsion rod driven by the micro-volume propulsion pump, the propulsion rod can press the spinning solution downward, thereby transporting the spinning solution to the spinneret. In the above two processes, the sealing sleeve can not only prevent the waste caused by the leakage of the spinning liquid in the liquid storage bottle for injection, but also ensure the delivery accuracy of the micro propulsion pump.

Preferably, the liquid storage bottle for injection is provided with a three-way electromagnetic reversing valve at the junction of the first delivery pipeline and the second delivery pipeline, and the three-way electromagnetic reversing valve is connected with the control module. The purpose of setting the above-mentioned three-way electromagnetic reversing valve is: in the process that the micro propulsion pump extracts the spinning solution in the liquid storage bottle for injection into the liquid storage bottle for injection, the three-way electromagnetic reversing valve will The second delivery pipeline communicates with the liquid storage bottle for injection and disconnects the first delivery pipeline from the liquid storage bottle for injection, thereby extracting the spinning solution in the liquid storage bottle for storage into the liquid storage bottle for injection, Since the first conveying pipeline is disconnected from the liquid storage bottle for injection, air will not be extracted from the first conveying pipeline into the liquid storage bottle for injection during the extraction process, so that the micro-push pump can The spinning dope is extracted more precisely, and the contamination of the spinning dope by the outside air can also be avoided. When the micro propulsion pump transports the spinning solution in the liquid storage bottle for injection to the spinneret, the three-way electromagnetic reversing valve disconnects the second delivery pipeline from the liquid storage bottle for injection and The first conveying pipeline is communicated with the liquid storage bottle for injection, so that the spinning solution in the liquid storage bottle for injection is delivered to the spinneret, since the second conveying pipeline is disconnected from the liquid storage bottle for injection state, so the spinning solution in the liquid storage bottle for injection will not flow back into the second delivery pipeline, which not only enables the micro-push pump to accurately deliver the spinning solution, but also prevents the spinning solution from flowing back into the second delivery pipeline. The silk liquid mixes with the spinning solution of making this nanofiber facial mask when preparing another nanofiber facial mask next time and causes adverse reactions. The above-mentioned three-way electromagnetic reversing valve can also be replaced by an electromagnetic valve, and the electromagnetic valve is respectively arranged at the connection between the first delivery pipeline and the liquid storage bottle for injection and the connection between the second delivery pipeline and the The junction of the reservoir bottle for injection. By separately controlling the on-off of the two solenoid valves, the connection and disconnection between the first delivery pipeline and the second delivery pipeline and the liquid storage bottle for injection are controlled.

Preferably, the second delivery pipeline is provided with a funnel-shaped installation port and a conical pin in the installation port at the connection with the liquid storage bottle, wherein the pin is provided with There is a needle port, and the needle port communicates with the second delivery pipeline; when the liquid storage bottle for liquid storage is installed on the installation port, the insertion pin is located in the liquid storage bottle for liquid storage. In this way, through the above structure, it is more convenient for the user to install the liquid storage bottle on the shell or replace the liquid storage bottle. In addition, the conical pin is conducive to penetrating the bottle of the liquid storage bottle. The mouth enters the liquid storage bottle for the storage liquid.

Preferably, the liquid storage bottle for storage is provided with a sealing ring at the intersection with the installation port. This can prevent the spinning solution in the liquid storage bottle from leaking out.

Preferably, the liquid storage device further includes a clamping mechanism for clamping the liquid storage bottle for liquid storage, and the clamping mechanism includes limiting plates arranged on both sides of the liquid storage bottle for storage, Wherein, the limiting plate is in contact with the liquid storage bottle, the mouth of the liquid storage bottle is installed on the installation port, and the bottom of the bottle is provided with a spring at a position corresponding to the shell, One end of the spring acts on the bottom of the bottle, and the other end acts on the shell. In this way, when installing the liquid storage bottle for liquid storage, the user only needs to compress the spring at the bottom of the liquid storage bottle for liquid storage. , the spring drives the liquid storage bottle to move in order to restore the original shape, so that the mouth of the liquid storage bottle contacts the installation port, and the pin at the installation port is inserted into the liquid storage bottle . When the liquid storage bottle needs to be disassembled, the user only needs to manually drive the liquid storage bottle to move, and the movement of the liquid storage bottle makes the spring in a compressed state. When the mouth of the bottle leaves the mounting port, the user takes out the liquid storage bottle for liquid storage. In the above process, the limiting plate restricts the displacement of the liquid storage bottle for liquid storage, thereby realizing the precise positioning of the liquid storage bottle for liquid storage, and the elastic force of the spring promotes the liquid storage bottle for liquid storage The mouth of the bottle fits closely with the installation mouth. In addition, the above structure can make it more convenient for the user to replace the liquid storage bottle for liquid storage.

Preferably, the casing is provided with a protective cover made of insulator material at the spinneret; the casing is provided with a rear cover at the liquid storage device. Like this, the purpose of arranging the above-mentioned protective cover is: because the protective cover is made of insulator material, when the protective cover covers the spinneret hole of the spinneret, the metal gasket at the spinneret and the protective cover No electrostatic field will be generated between them. Therefore, even if the user turns on the electrospinning nanofiber mask preparation instrument of the present invention, no jet will be ejected from the spinneret holes. Only when the user lifts the protective cover, an electrostatic field will be generated between the metal gasket at the spinneret and the human face, and the spinning solution will be sprayed from the spinneret hole to the human face to form a nanofiber mask. This can prevent the user from accidentally touching the metal conductor when the user is not ready, causing the spinning solution to be ejected from the spinneret hole, resulting in waste. In addition, the user can replace the liquid storage bottle by opening the rear cover.

Compared with the prior art, the present invention has the following beneficial effects:

1. In the process of using the electrospinning nanofiber mask preparation instrument of the present invention, the user only needs to hold the electrospinning nanofiber mask preparation instrument with one hand, start the power supply, and contact the hand with the metal conductor, so that the spinning The silk liquid is ejected from the spinneret hole of the spinneret and onto the user's face. The user moves the electrospinning nanofiber mask preparation device to spray the nanofibers evenly on different parts of the face. These nanofibers are deposited on the On the face, after the solvent evaporates, it can be solidified to form a nanofiber mask. In this way, users can configure spinning solution to make nanofiber masks on site, which is easy and convenient to operate.

2. The electrospinning nanofiber facial mask preparation instrument of the present invention is small in size and easy to carry.

Description of drawings

Fig. 1-Fig. 6 is the structural representation of the specific embodiment of electrospinning nanofiber facial mask preparation instrument of the present invention, and wherein, Fig. 1 and Fig. 2 are three-dimensional structure schematic diagram; Fig. 3 is the front view of Fig. 1; Fig. 4 is Fig. 2; Figure 5 is the rear view of Figure 1, and Figure 6 is the rear view of Figure 1 with the rear cover removed.

FIG. 7 is a partially enlarged view of FIG. 6 .

FIG. 8 is a circuit connection diagram of FIG. 1 .

detailed description

Referring to Fig. 1-Fig. 8, the preparation method of electrospinning nanofiber facial mask of the present invention comprises the following steps:

(1) Inject the prepared spinning solution into the liquid storage bottle of the electrospinning nanofiber mask preparation instrument;

(2) Clean the face to be applied with the nanofiber mask;

(3) The user is in contact with the metal conductor 2-3 in the electrospinning nanofiber facial mask preparation instrument; the spinneret 5-2 in the electrospinning nanofiber facial mask preparation instrument is aligned with the face, and the electrospinning nanofiber facial mask is started. Fiber mask preparation instrument, the spinneret 5-2 sprays the spinning solution onto the facial skin;

(4) Evenly spray the spinning solution onto the skin of the face, solidify after the solvent volatilizes to form a nanofiber mask and deposit it on the face.

See Figure 1-Figure 8, in step (2), clean the face to be applied with nanofiber mask, specifically apply toner on the face, so that the nanofiber mask can better fit the facial skin and promote activity Ingredient absorption.

Referring to Figures 1-8, in step (3), the user holds the electrospinning nanofiber mask preparation instrument with his hand, and contacts the electrostatic high-voltage negative electrode on the surface of the electrospinning nanofiber mask preparation instrument.

Referring to Fig. 1-Fig. 8, in step (3), when spinning, the distance between the spinneret 5-2 and the face is 12cm.

Referring to Fig. 1-Fig. 8, in step (3), when spinning, use a mask to cover other parts of the face other than the part where the nanofiber mask needs to be applied. In this way, the spinning solution can be prevented from being sprayed into the eyes, nose, mouth, hair and other places.

The preparation of the spinning solution determines the active ingredients and their amounts according to the required functions of the mask. The preparation of the spinning solution will be described below with two examples.

Example 1: the selected spinning solution is an aqueous solution of polyethylene oxide (PEO) with a mass concentration of 1%, and 0.1 gram of PEO powder is mixed with 9.9 gram of deionized water with an electronic balance, and stirred on a magnetic stirrer at room temperature for 2 After 1 hour, the active ingredients were added. The active ingredients included 0.02 g of endothelin antagonist, 0.04 g of β-carotene, and 0.04 g of hyaluronic acid. Stirring was continued for 1 hour and allowed to stand for 1 hour to obtain a uniform and transparent spinning solution. The facial mask prepared by the spinning solution has the effect of moisturizing and whitening.

Example 2: The selected spinning solution is an aqueous solution of sodium alginate (SA) with a mass concentration of 1%, and 1.15 grams of SA powder is weighed with an electronic balance and mixed with 8.85 grams of deionized water, and stirred on a magnetic stirrer at room temperature for 2 After 1 hour, add the active ingredient, the active ingredient includes 0.04 gram of collagen, 0.04 gram of fruit acid, 0.02 gram of ceramide, continue to stir for 1 hour, and stand for 1 hour to obtain a uniform and transparent spinning solution. The mask prepared by the spinning solution has the effect of moisturizing and removing wrinkles.

Referring to Fig. 1-Fig. 8, the electrospinning nanofiber facial mask preparation instrument for realizing above-mentioned electrospinning nanofiber facial mask preparation method of the present invention comprises shell 1 and the electrostatic high voltage generating device 2 that is arranged in shell 1, electrospinning The film forming device 5 , the liquid storage device 3 for storing the spinning liquid, the delivery device 4 and the control module 6 for transporting the spinning liquid in the liquid storage device 3 to the electrospinning film forming device 5 . Wherein, the electrospinning film-forming device 5 includes a spinneret 5-2, a metal gasket 5-1 arranged on the spinneret 5-2, and a metal conductor 2-3 arranged on the surface of the shell 1. The spinneret 5-2 is provided with a spinneret 5-3, and the spinneret 5-2 is set on the shell 1. The electrostatic high-voltage generator 2 includes a DC power supply 2-1 and a DC high-voltage inverter 2-2, wherein the DC power supply 2-1 is connected to a DC high-voltage inverter 2-2, and the DC high-voltage inverter The positive pole of 2-2 is connected to the metal gasket 5-1, and the negative pole is connected to the metal conductor 2-3. The liquid storage device 3 includes a liquid storage bottle, and the bottom of the liquid storage bottle is connected to the spinneret 5-2 through the first delivery pipe 3-2.

Described conveying device 4 is made of micropropelling pump, and this micropropelling pump comprises pump body 4-1 and push rod 4-2, is provided with piston 4-3 on the push rod 4-2, and the piston 4 on the push rod 4-2 -3 fits in the reservoir bottle. The control module 6 is used to control the operation of the micro propulsion pump and the DC high voltage inverter 2-2, and the micro propulsion pump is powered by the DC power supply 2-1.

Referring to Fig. 1-Fig. 8, the quantity of liquid storage bottle in described liquid storage device 3 is a plurality of, and the piston 4-3 of described micropropelling pump cooperates with one of them liquid storage bottle, and the piston 4-3 of micropropelling pump The matching liquid storage bottle is the liquid storage bottle 3-1 for injection, and the other liquid storage bottles are the liquid storage bottle 3-3 for liquid storage; The bottom of the bottom is communicated with through the second delivery pipeline 3-4, and each liquid storage is provided with the second delivery pipeline 3-4 between the liquid storage bottle 3-3 and the injection storage bottle 3-1 to control the two An on-off solenoid valve 3-5, the solenoid valve 3-5 is connected to the control module 6, and the control module 6 is connected with a mode switching switch 6-1 for selecting a specific liquid storage bottle 3-3 for working . The advantage of the above-mentioned preferred scheme is that the spinning solutions of different properties can be stored in a plurality of liquid storage bottles 3-3 to prepare nanofiber facial masks with different functions, such as moisturizing nanofiber facial masks, whitening nanofiber facial masks, Speckle-removing nanofiber facial mask etc.; Its working principle is: select specific mode by mode switching switch 6-1, is specifically controlled by control module 6 and opens with solenoid valve 3-5 on the liquid storage bottle 3-3 It is communicated with the liquid storage bottle 3-1 for injection, such as selecting the moisturizing mode, then the magnetic valve 3-5 on the liquid storage bottle 3-3 of the spinning solution containing the moisturizing active ingredient will be opened; Push the piston 4-3 on the pump upward, so that the inside of the liquid storage bottle 3-1 for injection forms a vacuum, and the spinning solution in the liquid storage bottle 3-3 for liquid storage enters in the liquid storage bottle 3-1 for injection, and then Solenoid valve 3-5 is closed; Then just can utilize the selected spinning solution to carry out nanofiber mask preparation.

Referring to Figures 1-8, the housing 1 is provided with a power switch 1-3 for starting or shutting down the DC high-voltage inverter 2-2, and the metal conductor 2-3 is arranged on the surface of the power switch 1-3 . When operating the power switch 1-3 to start the DC high-voltage inverter 2-2, the user's hand is in contact with the metal conductor 2-3, as long as the hand is kept in contact with the metal conductor 2-3, the nanofiber mask can be prepared. More convenient.

Referring to Fig. 8, the control module 6 is also connected with an electrostatic high-voltage adjustment knob 6-2 for adjusting the output voltage of the DC high-voltage inverter 2-2 and a speed adjustment knob 6 for adjusting the injection speed of the micro-push pump -3, the electrostatic high voltage adjustment knob 6-2 and the speed adjustment knob 6-3 are arranged on the surface of the casing 1. The output voltage of the DC high-voltage inverter 2-2 can be adjusted through the electrostatic high-voltage adjustment knob 6-2, so as to obtain a uniform and stable nanofiber mask. The injection speed of the micro-push pump can be adjusted by the speed adjustment knob 6-3, so that nanofiber electrospinning with different characteristics can be obtained and the time for applying the nanofiber mask on the face can be controlled.

Referring to Fig. 4 and Fig. 8, the micro-push pump is provided with a sealing sleeve 4-4 at the piston 4-3, and the sealing sleeve 4-4 is wrapped on the piston 4-3. The purpose is to ensure that the working environment of the micro-propelling pump is in a vacuum state, so that during the upward movement of the propelling rod 4-2 driven by the micro-propelling pump, the piston 4-3 and the liquid storage bottle for injection 3- Negative pressure is formed between 1, so that the spinning solution reaches the injection storage bottle 3-1 through the second delivery pipeline 3-4. During the downward movement of the propulsion rod 4-2 driven by the micro propulsion pump, the propulsion rod 4-2 can squeeze the spinning solution downward, so as to transport the spinning solution to the spinneret 5-2. In the above two processes, the sealing sleeve 4-4 can not only prevent the waste caused by the leakage of the spinning solution in the injection storage bottle 3-1, but also ensure the delivery accuracy of the micro-push pump.

4 and 8, the injection storage bottle 3-1 is provided with a three-way electromagnetic reversing valve 3-11 at the junction of the first delivery pipeline 3-2 and the second delivery pipeline 3-4, so The three-way electromagnetic reversing valve 3-11 is connected with the control module 6. The purpose of setting the above-mentioned three-way electromagnetic reversing valve 3-11 is: in the process of extracting the spinning solution in the liquid storage bottle 3-3 to the injection storage bottle 3-1 by the micro propulsion pump, the The three-way electromagnetic reversing valve 3-11 connects the second delivery pipeline 3-4 with the injection storage bottle 3-1 and disconnects the first delivery pipeline 3-2 from the injection storage bottle 3-1. open, so that the spinning solution in the liquid storage bottle 3-3 for liquid storage is extracted into the liquid storage bottle for injection 3-1, because the first conveying pipeline 3-2 is connected with the liquid storage bottle for injection 3-1 1 is in the disconnected state, so air will not be drawn from the first delivery pipeline 3-2 into the liquid storage bottle for injection 3-1 during the extraction process, so that the micro-push pump can extract the spinning solution more accurately, In addition, contamination of the spinning solution by external air can also be avoided. When the micro propulsion pump transports the spinning solution in the liquid storage bottle for injection 3-1 to the spinneret 5-2, the three-way electromagnetic reversing valve 3-11 transfers the second delivery pipeline 3-1 to the spinneret 5-2. 4. Disconnect the liquid storage bottle for injection 3-1 and connect the first delivery pipeline 3-2 with the liquid storage bottle for injection 3-1, so as to transport the spinning solution in the liquid storage bottle for injection 3-1 To the spinneret 5-2, since the second delivery pipeline 3-4 is disconnected from the injection storage bottle 3-1, the spinning solution in the injection storage bottle 3-1 will not flow back into the second delivery pipeline 3-4, so that the micro-propelling pump can accurately deliver the spinning solution, and can avoid the spinning solution flowing back into the second delivery pipeline 3-4 and the next preparation of another When the nanofiber facial mask is mixed with the spinning solution for manufacturing the nanofiber facial mask, adverse reactions are caused. The above-mentioned three-way electromagnetic reversing valve 3-11 can also be replaced by an electromagnetic valve 3-5. -1 and the connection between the second delivery pipeline 3-4 and the injection storage bottle 3-1. By separately controlling the on-off of the two solenoid valves 3-5, the connection and disconnection between the first delivery pipeline 3-2 and the second delivery pipeline 3-4 and the injection storage bottle 3-1 are controlled .

7 and 8, the second delivery pipeline 3-4 is provided with a funnel-shaped installation port 3-6 at the connection with the liquid storage bottle 3-3 and a funnel-shaped installation port 3-6 at the installation port 3-3. 6, the conical pin 3-9, wherein, the pin 3-9 is provided with a needle port, and the needle port communicates with the second delivery pipeline 3-4; When the liquid bottle 3-3 is installed on the installation port 3-6, the insertion pin 3-9 is located in the liquid storage bottle 3-3 for liquid storage. In this way, through the above structure, it is more convenient for the user to install the liquid storage bottle 3-3 for storage on the shell 1 or replace the liquid storage bottle 3-3 for storage. In addition, the conical pin 3-9 is conducive to penetration The mouth of the liquid storage bottle 3-3 for liquid storage enters into the liquid storage bottle 3-3 for storage.

Referring to Fig. 7, the liquid storage bottle 3-3 for liquid storage is provided with a sealing ring 3-10 at the intersection with the installation port 3-6. This can prevent the spinning solution in the liquid storage bottle 3-3 from leaking out.

Referring to Fig. 6, the liquid storage device 3 also includes a clamping mechanism for clamping the liquid storage bottle 3-3 for storage, and the clamping mechanism includes a 3 Limiting plates 3-7 on both sides, wherein, the limiting plate 3-7 is in contact with the liquid storage bottle 3-3 for storing the liquid, and the mouth of the liquid storage bottle 3-3 for the liquid storage is installed On the installation port 3-6, the bottom of the bottle is provided with a spring 3-8 at a position corresponding to the shell 1, one end of the spring 3-8 acts on the bottom of the bottle, and the other end acts on the shell 1 on. In this way, the user only needs to push the compression spring 3-8 at the bottom of the liquid storage bottle 3-3 for liquid storage. Release your hand, and the spring 3-8 drives the liquid storage bottle 3-3 to move in order to restore the original shape, so that the mouth of the liquid storage bottle 3-3 contacts with the installation port 3-6, so Insert the pin 3-9 at the installation port 3-6 into the liquid storage bottle 3-3. When the liquid storage bottle 3-3 for liquid storage needs to be disassembled, the user only needs to manually drive the liquid storage bottle 3-3 to move, and the movement of the liquid storage bottle 3-3 makes the spring 3-8 In the compressed state, when the mouth of the liquid storage bottle 3-3 for liquid storage leaves the installation port 3-6, the user takes out the liquid storage bottle 3-3 for liquid storage. In the above process, the limiting plate 3-7 limits the deviation of the liquid storage bottle 3-3 for liquid storage, thereby realizing the precise positioning of the liquid storage bottle 3-3 for liquid storage, and the spring 3-3 The elastic force of 8 impels the mouth of the liquid storage bottle 3-3 for storing the liquid to closely fit with the installation port 3-6. In addition, the above structure can make it more convenient for the user to replace the liquid storage bottle 3-3 for liquid storage.

Referring to Figures 1-6, the housing 1 is provided with a protective cover 1-1 made of insulator material at the spinneret 5-2; the housing 1 is provided with a rear cover 1-2 at the liquid storage device 3 . Like this, the purpose of setting above-mentioned protective cover 1-1 is: because protective cover 1-1 is made of insulator material, when described protective cover 1-1 blocked the spinneret hole 5-3 of spinneret 5-2, No electrostatic field will be generated between the metal gasket 5-1 at the spinneret 5-2 and the protective cover 1-1, therefore, even if the user turns on the electrospinning nanofiber facial mask preparation instrument of the present invention, the Said spinneret hole 5-3 also can not jet eject. Only when the user lifts the protective cover 1-1, an electrostatic field will be generated between the metal gasket 5-1 at the spinneret 5-2 and the human face, and the spinning solution will flow from the spinneret hole 5. -3 shots to the human face to form a nanofiber mask. This can prevent the user from accidentally touching the metal conductor 2-3 when not ready to cause the spinning solution to be ejected from the spinneret hole 5-3, resulting in waste. In addition, the user can replace the liquid storage bottle 3-3 for liquid storage by opening and carrying out the rear cover 1-2.

Referring to Fig. 1-Fig. 8, the control module 6 is composed of a single-chip microcomputer.

Referring to Fig. 8, the working principle of the electrospinning nanofiber mask preparation instrument for realizing the above-mentioned electrospinning nanofiber mask preparation method of the present invention is:

When working, the user injects the prepared spinning solution into the liquid storage bottle; starts the DC high-voltage inverter 2-2 and the micro propulsion pump, and the user holds the electrospinning nanofiber mask preparation instrument in his hand, and connects with the shell 1 The metal conductor 2-3 is in contact with the metal conductor 2-3. At this time, the electrostatic high-voltage positive pole generated by the DC high-voltage inverter 2-2 acts on the metal gasket 5-1, and the negative pole acts on the human body. At this time, the electrostatic spinning nanofiber mask preparation instrument The spinneret 5-2 in the nozzle is aimed at the face of the person and is separated by a certain distance, an electrostatic field is formed between the two, and the spinning solution at the end of the spinneret hole 5-3 of the nozzle forms a Taylor cone-shaped solution. drop, when the electric field force of the electrostatic field is greater than the surface tension of the droplet at the end of the spinneret 5-3, the droplet will form a jet, and the spinneret 5-2 will spray to the face The nanofibers are spun, and the nanofibers are sprayed on different parts of the face by moving the electrospinning nanofiber mask preparation device. These nanofibers are spun and deposited on the face. After the solvent evaporates, they can be solidified to form a nanofiber mask.

The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above content, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are all Replacement methods that should be equivalent are all included within the protection scope of the present invention.

Claims (10)

1. The preparation method of the electrostatic spinning nanofiber mask is characterized by comprising the following steps:

(1) injecting the prepared spinning solution into a solution storage bottle of an electrostatic spinning nanofiber mask preparation instrument;

(2) cleaning the face to be applied with the nanofiber mask;

(3) a user contacts with a metal conductor in the electrostatic spinning nanofiber mask preparation instrument; enabling a spinning nozzle in the electrostatic spinning nanofiber facial mask preparation instrument to be aligned to the face, starting the electrostatic spinning nanofiber facial mask preparation instrument, and enabling the spinning nozzle to spray spinning liquid onto the skin of the face;

(4) the spinning solution is uniformly sprayed on the facial skin, and after the solvent is volatilized, the nano-fiber mask is formed and deposited on the face.

2. The electrospinning nanofiber mask preparation method according to claim 1, wherein in step (3), the user holds the electrospinning nanofiber mask preparation apparatus with a hand and contacts with the electrostatic high voltage negative electrode on the surface of the electrospinning nanofiber mask preparation apparatus.

3. The method for preparing the electrospun nanofiber facial mask as claimed in claim 1, wherein in the step (3), the mask is used for shielding the part of the face except for the part needing to be coated with the nanofiber facial mask during spinning.

4. An electrostatic spinning nanofiber mask preparation instrument for realizing the electrostatic spinning nanofiber mask preparation method according to any one of claims 1 to 3, which comprises a housing, and an electrostatic high voltage generation device, an electrostatic spinning film forming device, a liquid storage device for storing spinning liquid, a conveying device for conveying the spinning liquid in the liquid storage device to the electrostatic spinning film forming device, and a control module which are arranged in the housing; wherein,

the electrostatic spinning film forming device comprises a spinning nozzle, a metal gasket arranged on the spinning nozzle and a metal conductor arranged on the surface of a shell, wherein the spinning nozzle is provided with spinning holes and is arranged on the shell;

the electrostatic high-voltage generating device comprises a direct-current power supply and a direct-current high-voltage inverter, wherein the direct-current power supply is connected with the direct-current high-voltage inverter, the positive electrode of the direct-current high-voltage inverter is connected with the metal gasket, and the negative electrode of the direct-current high-voltage inverter is connected with the metal conductor;

the liquid storage device comprises a liquid storage bottle, and the bottom of the liquid storage bottle is connected with the spinning nozzle through a first conveying pipeline;

the conveying device is composed of a micro propelling pump, the micro propelling pump comprises a pump body and a propelling rod, a piston is arranged on the propelling rod, and the piston on the propelling rod is matched with the liquid storage bottle;

the control module is used for controlling the micro propulsion pump and the direct-current high-voltage inverter to work, and the micro propulsion pump is powered by a direct-current power supply.

5. The electrospinning nanofiber mask preparation instrument according to claim 4, wherein the number of the liquid storage bottles in the liquid storage device is plural, the piston of the micro propulsion pump is matched with one of the liquid storage bottles, the liquid storage bottle matched with the piston of the micro propulsion pump is a liquid storage bottle for injection, and the other liquid storage bottles are liquid storage bottles for liquid storage; the liquid storage bottles for storing liquid are respectively communicated with the bottoms of the liquid storage bottles for injection through second conveying pipelines, electromagnetic valves for controlling the on-off of the second conveying pipelines between each liquid storage bottle for storing liquid and the liquid storage bottle for injection are arranged between the liquid storage bottles for storing liquid, the electromagnetic valves are connected with a control module, and the control module is connected with a mode switching switch for selecting the specific liquid storage bottle for storing liquid to work.

6. The facial mask preparation instrument with electrospun nano fibers as claimed in claim 4, wherein the housing is provided with a power switch for starting or stopping the DC high voltage inverter, and the metal conductor is arranged on the surface of the power switch.

7. The electrospinning nanofiber mask preparation instrument according to claim 5, wherein a three-way electromagnetic directional valve is arranged at the joint of the liquid storage bottle for injection and the first conveying pipeline and the second conveying pipeline, and the three-way electromagnetic directional valve is connected with the control module.

8. The facial mask preparation instrument of claim 5, wherein the second delivery pipe is provided with a funnel-shaped mounting opening at a connection part with the liquid storage bottle for liquid storage and a conical insertion pin arranged in the mounting opening, wherein the insertion pin is provided with a needle opening, and the needle opening is communicated with the second delivery pipe; when the liquid storage bottle is mounted on the mounting opening, the pin is positioned in the liquid storage bottle.

9. The electrospinning nanofiber mask preparation instrument according to claim 8, wherein the liquid storage device further comprises a clamping mechanism for clamping the liquid storage bottle for liquid storage, the clamping mechanism comprises limiting plates arranged on two sides of the liquid storage bottle for liquid storage, the limiting plates are in contact with the liquid storage bottle for liquid storage, a bottle opening of the liquid storage bottle for liquid storage is mounted on the mounting opening, a spring is arranged on the bottle bottom at a position corresponding to the housing, one end of the spring acts on the bottle bottom, and the other end of the spring acts on the housing.

10. The electrospinning nanofiber facial mask preparing apparatus according to claim 4, wherein the housing is provided with a protective cover made of an insulator material at the spinneret; the housing is provided with a rear cover at the reservoir.