TWI503141B - Beauty equipment - Google Patents

Description

Beauty equipment

The present invention relates to a beauty device for allowing a cosmetic ingredient to penetrate into the skin by iontophoresis.

Ion introduction is proposed in order to improve the cosmetic effect of the cosmetic ingredients contained in cosmetics and the like. Iontophoresis is a method of allowing a weak current to flow to a site where the cosmetic component is to be infiltrated, thereby moving the charged cosmetic component toward the inside of the skin to promote penetration of the cosmetic component into the skin.

In the conventional iontophoresis device, various waveforms such as a direct current, a pulse current, and a sinusoidal alternating current whose current and voltage are constant are used as a waveform of a weak current. For example, Patent Document 1 discloses an ion guide that has an electrode portion that outputs a current to an affected portion, and constitutes a pulsed current flowing from the electrode portion. The iontophoresis device is a pulse current that constitutes one polarity of the skin from the electrode portion. Therefore, the cosmetic component having a charge of a polarity opposite to the polarity of the pulse current is easily penetrated into the skin by the pulse current.

Moreover, the iontophoretor disclosed in Patent Document 2 is one The square-polar burst pulse current and the other polarity burst pulse current alternately energize the skin. Thereby, the ion introducer is configured to promote penetration of both components into the skin even when a positively charged cosmetic component is mixed with a negatively charged cosmetic component.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-237545

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2002-320680

The conventional iontophoresis has the effect of promoting the penetration of the cosmetic component into the skin as described above, but there is still room for improvement in terms of enhancing the cosmetic effect of the skin.

The present invention has been made in view of the above-described background, and it is intended to provide a beauty device having the possibility of exhibiting a cosmetic effect superior to the prior art.

According to an aspect of the present invention, the first electrode and the second electrode are electrically connected to each other via a human body, and an electric current flows to an external circuit including the first electrode and the second electrode and the human body, thereby allowing the charged cosmetic component to permeate. A beauty device for use inside the skin, which has the following features: a main body portion of the second electrode that is in contact with the skin coated with the cosmetic component and the second electrode that is in contact with another human body portion, and is disposed in the main body portion and connected to the first electrode and the second electrode a control unit that controls a current flowing between the electrodes, wherein the control unit is configured to perform an iontophoresis mode in which the first electrode is sequentially and repeatedly disposed between the first electrode and the second electrode. An ion introduction step of flowing a current of one polarity in a state where the polarity of the electric charge of the cosmetic component is the same polarity, and a polarity opposite to the polarity of the ion introduction step is distributed between the first electrode and the second electrode a step of resetting the pulse current of the polarity; and a skin care step of circulating a current of alternating polarity between the first electrode and the second electrode.

In the above-described beauty device, one of the first electrode or the second electrode is brought into contact with a human skin in which a cosmetic component is applied to obtain a cosmetic effect, and the other electrode is brought into contact with another part of the human skin. The above external circuit. Further, in the above-described beauty instrument, the ion introduction mode is performed in a state in which the external circuit is configured, whereby the composition can promote penetration of the cosmetic component into the skin. Hereinafter, an electrode that is in contact with a portion where a cosmetic effect is desired is referred to as a first electrode, and the other electrode is referred to as a second electrode. Further, the polarity of the current is a positive polarity in the flow of the external circuit from the first electrode to the second electrode, and the opposite direction is a negative polarity.

In the ion introduction step described above, a current of one polarity flows between the electrodes. Here, the polarity of the above current value is controlled to be The charge with the cosmetic ingredients becomes the same polarity. For example, when the cosmetic component has a negative charge, the control unit applies a voltage between the electrodes to bring the first electrode to a low potential with respect to the second electrode. Thereby, the polarity of the current flowing to the external circuit becomes negative. Further, the cosmetic component having a negative charge receives the repulsive force from the first electrode, and is likely to be directed toward the second electrode side, that is, it is likely to penetrate into the skin.

Further, in the reset pulse step, the polarity of the current is controlled to be opposite to the current in the ion introduction step. Therefore, in the ion introduction step described above, the shift of the electric charge generated in the human skin can be neutralized.

Further, in the above skin care step, a weak current in which the polarity is alternately switched flows between the electrodes. When this weak current flows to the skin, there is a possibility that the skin cells are activated, the flow of lymph is further increased, blood circulation is promoted, or metabolism is promoted. Therefore, by performing the above-described skin care step, it is possible to expect a cosmetic effect such as improving the tension of the skin or making the skin beautiful.

Further, in the above-described beauty device, the ion introduction step, the reset pulse step, and the skin care step are repeatedly performed in the above-described ion introduction mode, whereby it is expected that the osmosis promoting effect of the cosmetic component can be utilized with the skin. The cosmetic effect of the synergistic effect of the activation is further enhanced.

1‧‧‧Beauty equipment

11‧‧‧1st electrode

12‧‧‧2nd electrode

10‧‧‧ Body Department

3‧‧‧Control Department

S8‧‧‧Ion introduction step

S9‧‧‧Reset pulse step

S11‧‧‧ Skin Care Steps

14‧‧‧LED indicator

15‧‧‧Vibration motor

13‧‧‧Adsorption head

131‧‧‧ bulging department

130‧‧‧Magnetic surface

30‧‧‧Control microcomputer

31‧‧‧Voltage application department

32‧‧‧Return Department

2‧‧‧Power Department

312‧‧‧ Grounding Department

310‧‧‧Polarity reversal circuit

311‧‧‧Constant current circuit

302‧‧‧Signal Output

320‧‧‧Resistors

300‧‧‧ADC

303‧‧‧Delay timer

301‧‧‧ Computing Department

[Fig. 1] When the beauty device in the embodiment is formed with an external circuit, A waveform diagram of the current flowing by an external circuit.

Fig. 2 is a block diagram of a control unit of the cosmetic device in the embodiment.

Fig. 3 is a flow chart for explaining the operation of the beauty instrument in the embodiment.

Fig. 4 is a flow chart for explaining the operation of the skin detecting function in the iontophoresis mode in the embodiment.

Fig. 5 is a waveform diagram showing a potential difference generated at both ends of the resistor in step S5 when an external circuit is formed in the cosmetic device in the embodiment.

Fig. 6 is a perspective view of the beauty device in the embodiment.

Fig. 7 is a plan view of the beauty instrument viewed from the first electrode side (lower side) in the embodiment.

Fig. 8 is a plan view of the beauty instrument viewed from the second electrode side (upper side) in the embodiment.

Fig. 9 is an explanatory view showing changes in the VAS value of the operation portion before and after the test in the examples.

Fig. 10 is an explanatory view showing changes in the VAS value of the control portion before and after the test in the examples.

[Formation for carrying out the invention]

The magnitude of the current in the ion introduction step of the cosmetic device described above can be, for example, 100 to 1000 μA. When the magnitude of the above current is less than 100 μA, it is difficult to promote the penetration of the cosmetic component into the skin, and there is a concern that the cosmetic effect can be reduced. Further, when the magnitude of the above current exceeds 1000 μA, the penetration promoting effect of the cosmetic component starts to be saturated.

The above current is the higher the current value, the more the beauty component can be infiltrated into the skin, and the user may feel uncomfortable with the contact portion between the skin and the first electrode. While avoiding such a problem, it is more preferable to set the magnitude of the current in the ion introduction step to 100 to 240 μA in order to obtain a sufficient penetration promoting effect of the cosmetic component.

Further, although the magnitude of the pulse current in the reset pulse step is not particularly limited, it is preferably set to, for example, 100 to 1000 μA. When the pulse current is within this range, it is easy to sufficiently neutralize the bias of the electric charge, and it is easy to improve the cosmetic effect of the body feeling.

Further, although the frequency of replacement of the polarity in the above-described skin care step is not particularly limited, it may be set, for example, at 1 k to 100 kHz. When the frequency exceeds this range, the skin's activation effect is not easily obtained, and there is a concern that the cosmetic effect can be reduced. Therefore, the above frequency is only required to be 1k to 100 kHz, and more preferably 1k to 10 kHz.

Further, the magnitude of the current in the above-described skin care step can be, for example, 30 to 100 μA. When the magnitude of the current is less than 30 μA, the current is too small, so that it is difficult to obtain an activation effect of the skin, and there is a concern that the cosmetic effect can be reduced. On the other hand, when the magnitude of the above current exceeds 100 μA, the activation effect of the skin starts to be saturated. Therefore, the current in the skin care step can be 30 to 100 μA, and more preferably 40 to 60 μA.

Further, the current in the ion introduction step is pulsed, and the current flowing in the skin care step is a rectangular wave, and the absolute value thereof is The absolute value of the current flowing in the ion introduction step described above is smaller. At this time, it is easy to promote penetration of the cosmetic component in the iontophoresis step, and it is easy to obtain an activation effect of the skin in the skin care step. As a result, the above-mentioned beauty instrument is expected to improve the cosmetic effect. Further, at this time, the duty ratio of the pulse in the ion introduction step is, for example, 10 to 90%, and more preferably 30 to 70%.

Moreover, the control unit may have a constant current circuit that controls the magnitude of the current in each step of the ion introduction step, the reset pulse step, and the skin care step to a value corresponding to each step.

In this case, the beauty device is capable of controlling the magnitude of the current in each step to a size that is easy to obtain the cosmetic effect in each step. As a result, the above-mentioned beauty instrument has a greater cosmetic effect.

Further, it is preferable that the ion introduction step is continued for 0.2 to 20 milliseconds, and the skin care step is preferably 0.2 to 20 milliseconds. At this time, the above-mentioned beauty instrument can fully penetrate the inside of the skin into the skin, and can fully obtain the activation effect of the skin. As a result, the above-mentioned beauty instrument has a greater cosmetic effect.

[Examples] (Example)

An embodiment of the above cosmetic device will be described with reference to Figs. 1 to 8 . In the beauty instrument 1, the first electrode 11 and the second electrode 12 are electrically connected to each other via a human body. Further, the beauty instrument 1 is configured to allow a current to flow to the first electrode 11 and the second electric The external circuit of the pole 12 and the human body, so that the charged beauty component penetrates into the skin.

As shown in FIGS. 6 to 8 , the beauty device 1 includes a main body portion 10 including a first electrode 11 and a second electrode 12 , and a control unit 3 disposed in the main body portion 10 and connected to the first portion. The 1 electrode 11 and the second electrode 12 control the current flowing between the electrodes. As shown in FIG. 1 and FIG. 3, the control unit 3 sequentially performs an ion introduction step S8 in which a current of one polarity (FIG. 1, F1) flows between the first electrode 11 and the second electrode 12, and another is performed. A pulse current of one polarity (FIG. 1, F2) flows to the reset pulse step S9 between the first electrode 11 and the second electrode 12, and a current for alternating polarity switching (FIG. 1, F3) flows to the first electrode 11 The iontophoresis mode of the skin care step S11 between the second electrode 12 and the second electrode 12.

As shown in FIGS. 6 to 8 , the beauty instrument 1 has a substantially rod-shaped main body portion 10 and has a first electrode 11 and a second electrode 12 on the side peripheral surface of the main body portion 10 . The first electrode 11 is disposed at one end of the main body portion 10 in the longitudinal direction as shown in FIG. 7 . The second electrode 12 is disposed at the other end in the longitudinal direction of the main body portion 10 as shown in Fig. 8 . Moreover, the first electrode 11 and the second electrode 12 are disposed at positions opposite to each other across the main body portion 10 as viewed from the longitudinal direction of the main body portion 10. In addition, the side where the first electrode 11 in the longitudinal direction of the main body portion 10 is provided will be referred to as the front side, and the side where the second electrode 12 is provided will be referred to as the rear side. In addition, the side of the first electrode 11 when the cosmetic device 1 is viewed from the longitudinal direction (front-rear direction) is referred to as the lower side, and the side of the second electrode 12 is referred to as the upper side. These directions are indicated for convenience, but the actual direction when using the beauty device 1 is not Have any relationship.

Further, the main body portion 10 is provided with a control unit 3, a power supply unit 2 that supplies power to the control unit 3, an LED indicator 14, and a vibration motor 15. As shown in FIG. 8, the LED indicator 14 is disposed at a substantially central portion in the longitudinal direction of the main body portion 10, and is configured to emit light upward. Further, the vibration motor 15 is disposed at the end (front view) of the first electrode 11 (front) in the main body portion 10 (not shown).

Moreover, the beauty instrument 1 of this example is configured to be adsorbed by a magnetic force as shown in Fig. 6, and has an adsorption function 13 for adsorbing and removing the skin surface to be applied from the skin surface as an additional function. The suction head 13 is disposed at a rear end portion of the main body portion 10 as shown in Fig. 7 . As shown in FIGS. 6 and 7, the adsorption head portion 13 has a bulging portion 131 that bulges downward. Further, the adsorption head portion 13 is provided with a magnetic force generating surface 130 on the top surface of the bulging portion 131, that is, on the opposite side (lower side) of the second electrode 12, and having a magnetic force generated by a flat surface.

Hereinafter, the electrical connection between the respective parts of the beauty instrument 1 will be described in detail using FIG. 2 . The power supply unit 2 is a control microcomputer 30 and a voltage application unit 31 connected to the control unit 3, an LED indicator 14, and a vibration motor 15, and supplies power to each of the units.

The control unit 3 is connected to the power supply unit 2, the first electrode 11, the second electrode 12, the LED indicator 14 and the vibration motor 15 as shown in Fig. 2, and constitutes an operation for controlling each of the units. Moreover, the control unit 3 includes a control microcomputer 30, a voltage application unit 31, and a reflow unit 32. The control microcomputer 30 has a signal for inputting and outputting the operation of each unit. Features. The voltage application unit 31 has a function of applying a voltage between the first electrode 11 and the second electrode 12 . The reflow portion 32 has a function of retracting a current flowing through the human body from the first electrode 11 or the second electrode 12 and returning it to the power supply unit 2 .

The control microcomputer 30 and the voltage application unit 31 are connected to each other by a voltage control signal and a current value selection signal which are described later. The reflow portion 32 is disposed between the voltage application portion 31 and the ground portion 312 connected to the negative electrode of the power supply portion 2. Further, the reflow unit 32 is connected to an ADC (Analog to Digital Converter) 300, which will be described later, of the control microcomputer 30. Thereby, the control unit 3 is configured to input the potential difference in the reflow unit 32 to the control microcomputer 30.

The voltage application unit 31 has a polarity inversion circuit 310 and a constant current circuit 311, and is configured to be connected to each other. The polarity inverting circuit 310 is connected to the signal output unit 302 of the control microcomputer 30 to be described later. Further, the polarity inverting circuit 310 is connected to each of the first electrode 11 and the second electrode 12. Thereby, the polarity inverting circuit 310 is configured to control the potential difference between the first electrode 11 and the second electrode 12 in accordance with the voltage control signal output from the signal output unit 302.

The constant current circuit 311 has a function of maintaining a current flowing between the first electrode 11 and the second electrode 12 at a constant value. Further, the constant current circuit 311 is connected to the signal output unit 302 of the control microcomputer 30. Further, the constant current circuit 311 is configured to set the current flowing between the first electrode 11 and the second electrode 12 in two stages in accordance with the current value selection signal output from the signal output unit 302. In this case, the current The size is a two-stage process in which the degree of ion introduction is set and the current value is smaller than the degree of ion introduction. Further, the degree of ion introduction is applied to the execution of the ion introduction step S8 and the reset pulse step S9 which will be described later, and the degree of skin care is applied to the execution of the skin care step S11.

The reflow portion 32 has a resistor 320 connected between the constant current circuit 311 and the ground portion 312. Thereby, the current that is placed from the voltage application unit 31 side flows toward the ground portion 312 side in the resistor 320, and flows back to the negative electrode of the power source unit 2 via the ground portion 312. Further, the voltage application unit 31 of the reflow unit 32 and the resistor 320 are connected to the ADC 300 of the control microcomputer 30. Thereby, the ADC 300 is a potential difference that constitutes a potential at which the ground portion 312 of the point between the voltage application portion 31 and the resistor 320 is input (hereinafter, the potential of the ground portion 312 is referred to as "ground potential").

The microcomputer 30 for control of the present example has a function of changing the operation of the beauty device 1 in accordance with the state of contact between the first electrode 11 and the second electrode 12 and the human body as an additional function. In other words, when the first electrode 11 and the second electrode 12 are in contact with the human body, the control microcomputer 30 controls the operation of the cosmetic device 1 to repeat the ion introduction step S8 shown in FIG. The ion implantation mode of the pulse step S9 and the skin care step S11 is reset. On the other hand, when the control microcomputer 10 of the present embodiment does not contact at least one of the first electrode 11 or the second electrode 12 with the human body, as shown in FIG. 3, the operation of controlling the beauty instrument 1 is performed by the delay timer 303. The set predetermined time interval is repeated (step S2) to perform steps S3 to S6 for detecting contact between the two electrodes and the human body.

Hereinafter, the control microcomputer 30 of this example will be described in detail. The control microcomputer 30 includes an ADC 300, a calculation unit 301, a signal output unit 302, and a delay timer 303. The ADC 300 has a function of digitizing the potential difference in the reflow portion 32. The calculation unit 301 has a function of determining whether or not the first electrode 11 and the second electrode 12 are in contact with the human body. The signal output unit 302 has a function of controlling the flow of current from the first electrode 11 or the second electrode 12 to the surface of the skin in order to obtain a cosmetic effect.

The ADC 300 is connected to the return portion 32 of the control unit 3, and is configured to digitize the potential difference of the return portion 32 with respect to the ground potential. The value of the potential difference quantized by the ADC 300 is transmitted to the arithmetic unit 301 in the control microcomputer 30.

The calculation unit 301 compares the value of the potential difference input by the ADC 300 with a predetermined threshold value. Further, when the value of the potential difference is less than the predetermined threshold value, the calculation unit 301 determines that at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body, and when the value of the potential difference is equal to or higher than the predetermined threshold value. It is determined that both the first electrode 11 and the second electrode 12 are in contact with the human body. Further, the calculation unit 301 is configured to control the signal output from the signal output unit 302 in accordance with the result of the above-described determination and the operation flow set in advance as shown in FIGS. 3 and 4 . In addition, the details of the above-described operation flow will be described later.

As shown in FIG. 2, the signal output unit 302 is configured to receive a control signal from the calculation unit 301, and output a voltage control signal and a current value selection signal to the voltage application unit 31. The voltage control signal is a polarity inversion circuit 310 that is input to the voltage application unit 31 to control application to the first electrode. The ON/OFF and polarity of the voltage between the 11 and the second electrode 12. Further, the current value selection signal is the constant current circuit 311 input to the voltage application unit 31, and controls the current value flowing between the first electrode 11 and the second electrode 12.

Further, the signal output unit 302 is connected to each of the LED indicator 14 and the vibration motor 15. When the signal output unit 302 determines that both the first electrode 11 and the second electrode 12 are in contact with the human body, the signal output unit 302 outputs a drive signal for driving each of the LED indicator 14 and the vibration motor 15.

The delay timer 303 is activated by the calculation unit 301 when it is determined that at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body as a result of the above-described determination by the calculation unit 301. The delay timer 303 has a function of stopping the operation of the arithmetic unit 301 for a predetermined period of time. Thereby, the beauty instrument 1 is a period from the start of the delay timer 303 until the predetermined time elapses, and the operation of each unit is stopped as the operation of the calculation unit 301 is stopped. Further, the delay timer 303 re-opens the operation of the arithmetic unit 301 after the predetermined time lapse.

Next, an operation flow of the beauty instrument 1 will be described with reference to FIGS. 3 to 4 . When the power supply unit 2 supplies power, the beauty appliance 1 performs step S1 of initializing the control microcomputer 30 as shown in FIG. At this time, the control microcomputer 30 outputs a current value selection signal to the constant current circuit 311, and sets the current value to the ion introduction level.

Thereafter, the control microcomputer 30 performs the step S2 of waiting for the predetermined time by the delay timer 303. In addition, this example The delay timer 303 is set to be appropriately set in the range of 50 to 1000 milliseconds.

The control microcomputer 30 performs the step S3 of supplying the operating power from the power supply unit 2 to the voltage applying unit 31 in step S2, and outputs the voltage control signal from the signal output unit 302. Thereby, the control microcomputer 30 controls the potential difference between the electrodes, and causes the first electrode 11 to have a low potential with respect to the second electrode 12, and applies a pulse voltage once between the electrodes. In this manner, the step S4 of applying the primary pulse voltage between the first electrode 11 and the second electrode 12 is performed. In this example, the value of the pulse voltage in step S4 is 5V.

Next, as shown in FIG. 3, a step S5 of measuring the potential difference in the reflow portion 32 is performed. In step S5, when both the first electrode 11 and the second electrode 12 are in contact with the skin, a pulse current of the pulse voltage flows from the second electrode 12 to the first electrode 11 via the human body. This pulse current is inserted into the control unit 3 from the first electrode 11, and a potential difference is generated between the both ends of the resistor 320 of the reflow portion 32 in a waveform F4 as shown in FIG. Further, the potential difference generated between both ends of the resistor 320, that is, the potential difference in the reflow portion 32 based on the ground potential is input to the ADC 300 of the control microcomputer 30, and the value thereof is measured.

On the other hand, when at least one of the first electrode 11 or the second electrode 12 is not in contact with the skin, the resistance does not flow to the resistor 320 even if the pulse voltage is applied, and the potential difference between the both ends of the resistor 320 does not occur. . Therefore, when at least one of the first electrode 11 or the second electrode 12 is not in contact with the skin, the value of the potential difference is 0V.

Then, the control microcomputer 30 performs the step S6 of determining the state of contact between the first electrode 11 and the second electrode 12 and the human body based on the comparison result of the potential difference and the predetermined threshold L (see FIG. 5) in the calculation unit 301. When the potential difference measured in step S5 is smaller than the threshold value L, the control microcomputer 30 determines that at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body (step S6 "No"). At this time, the control microcomputer 30 returns to step S2 to start the delay timer 303. Further, the control microcomputer 30 repeats steps S2 to S6 while determining that at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body in step S6. Further, in this example, the threshold L can be appropriately set between 50 and 200 mV.

On the other hand, when the potential difference in the reflow portion 32 with the ground potential as a reference is equal to or greater than the threshold value L, the control microcomputer 30 determines that both the first electrode 11 and the second electrode 12 are in contact with the human body. (Step S6 "Yes"). At this time, as shown in FIG. 3, the control microcomputer 30 performs a step S7 of outputting a current value selection signal to the constant current circuit 311 and setting the current value to the ion introduction degree.

Next, in step S7, the control microcomputer 30 starts the ion introduction mode in which the ion introduction step S8, the reset pulse step S9, and the skin care step S11 are sequentially repeated. Thereby, the waveform of the current flowing through the skin is repeated as the basic waveforms F1 to F3 shown in FIG.

In the iontophoresis mode, as shown in FIG. 4, the control microcomputer 30 determines that both the first electrode 11 and the second electrode 12 are in contact with the human body, and at least one of the first electrode 11 and the second electrode 12 is from the human body. It was stopped when leaving. Moreover, the control microcomputer 30 is executed away from During the sub-import mode, the drive signal is output from the signal output unit 302 to the LED indicator 14 and the vibration motor 15 (FIG. 4, step T1). Thereby, the LED indicator 14 and the vibration motor 15 are driven while both the first electrode 11 and the second electrode 12 are in contact with the human body.

More specifically, in the ion introduction step S8, the control microcomputer 30 can control the potential between the electrodes to lower the potential of the first electrode 11 with respect to the second electrode 12, or apply a plurality of pulses between the electrodes. Voltage. Thereby, the first electrode 11 has a basic waveform F1 as shown in FIG. 1, and allows the negative pulse current to flow to the skin several times.

In the reset pulse step S9, the control microcomputer 30 can control the potential difference between the electrodes to bring the first electrode 11 to a high potential with respect to the second electrode 12, or to apply a pulse voltage once between the electrodes. Thereby, the first electrode 11 has a basic waveform F2 as shown in FIG. 1, and allows a positive pulse current to flow to the skin.

Further, after the reset pulse step S9, the control microcomputer 30 performs a step S10 of outputting a current value selection signal to the constant current circuit 311 and setting the current value to the skin care level.

The control microcomputer 30 performs the skin care step S11 after performing step S10. In the skin care step S11, the control microcomputer 30 is a rectangular wave in which the potential difference of the first electrode 11 of the second electrode 12 is alternately converted between the electrodes. Thereby, the first electrode 11 has a basic waveform F3 as shown in FIG. 1, and a rectangular wave current in which the positive polarity and the negative polarity are alternately converted flows to the skin.

Moreover, as shown in FIG. 4, the control microcomputer 30 has and In the iontophoresis mode, the skin detection function for determining the state of contact between the first electrode 11 and the second electrode 12 and the human body is performed using a pulse current flowing through the human skin in the iontophoresis mode. In other words, the control microcomputer 30 is configured to perform a ground current generated in the ion introduction step S8, the reset pulse step S9, and the skin care step S11 on the human skin in the same manner as in the step S5. The measurement of the potential difference of the return portion 32 is T2.

Further, as shown in FIG. 4, the control microcomputer 30 performs a step T3 of determining the state of contact between the first electrode 11 and the second electrode 12 and the human body based on the result of the potential difference measurement by the reflow portion 32. The determination of the state of contact between the first electrode 11 and the second electrode 12 in the step T3 and the human body may be performed based on the result of the potential difference measurement for one pulse current, or the result of the potential difference measurement for the plurality of pulse currents may be integrated. Come on. Further, the pulse current used in the above-described contact state can be appropriately selected from the pulse currents in the respective steps of the ion introduction step S8, the reset pulse step S9, and the skin care step S11.

For example, in this example, the determination of the contact state in step T3 is such that the potential difference between both ends of the resistor 320 is continuously predetermined a predetermined number of times due to the pulse current (Fig. 1, F2) in the reset pulse step S9. The threshold L is implemented as a reference. In other words, when the number of times the potential difference is continuously predetermined by the pulse current (FIG. 1, F2) is less than the threshold L (step "Tes, "Yes"), the control microcomputer 30 determines the first electrode 11 or the first electrode. At least one of the two electrodes 12 is not in contact with the human body. At this time, the control microcomputer 30 stops the generation of the pulse current and stops. The output of the driving signals to the LED indicator 14 and the vibration motor 15 (step T4). The control microcomputer 30 repeats steps S2 to S6 shown in FIG. 3 after the ion implantation mode is terminated in step T4.

On the other hand, the control microcomputer 30 determines that the number of times the potential difference is continuously smaller than the threshold value L does not reach the predetermined number of times ("T" in step T3), and determines that both of the first electrode 11 and the second electrode 12 are in contact with the human body. . When the control microcomputer 30 determines in step T3 that the first electrode 11 and the second electrode 12 are in contact with the human body, the steps S7 to S11 shown in FIG. 3 are repeatedly executed.

Next, a method of using the beauty device 1 will be described. The user applies a charged cosmetic component to the skin before using the beauty device 1. Further, in this example, L-ascorbic acid-2-phosphate trisodium salt is used in the above cosmetic component.

The user holds the main body portion 10 such that the first electrode 11 protrudes from the hand and the second electrode 12 comes into contact with the hand. Further, the user brings the first electrode 11 into contact with the skin surface in a state in which the beauty device 1 is held as described above. Thereby, the iontophoresis mode is started, and the current formed by the repetition of the basic waveforms F1 to F3 shown in FIG. 1 flows in the contact portion between the first electrode 11 and the skin. Further, in the present example, in the ion introduction step S8, the first electrode 11 functions as a cathode, and the second electrode 12 functions as an anode, and a negative current flows through the surface of the skin in contact with the first electrode 11. Thereby, the beauty instrument 1 can infiltrate the inside of the skin as an anionic L-ascorbic acid-2-phosphate ion.

Next, the effect of the beauty device 1 is described. Bright. The beauty instrument 1 is configured to repeatedly perform the iontophoresis mode in this order of the iontophoresis step S8, the reset pulse step S9, and the skin care step S11.

Further, the current in the ion introduction step S8 is pulsed. Moreover, the current flowing in the skin care step S11 is a rectangular wave, and its absolute value is smaller than the absolute value of the current flowing in the ion introduction step S8. In the above-described manner, the beauty device 1 is obtained by repeating the above-described respective steps, and the current is applied to the skin, and the effect of the waveform and the current in each step of the above-described control is multiplied, and the penetration of the cosmetic component can be expected. The synergistic effect of the action and the activation of the skin enhances the cosmetic effect of the body.

Moreover, the control unit 3 has a constant current circuit 311 that controls the magnitude of the current in each step of the ion introduction step S8, the reset pulse step S9, and the skin care step S11 in accordance with the value of each step. Therefore, the beauty instrument 1 is a size that can be controlled to easily obtain the cosmetic effect in each step.

Further, the waveform of the current flowing in the skin care step S11 is controlled to be a rectangular wave. Therefore, the configuration of the control unit 3 is simple.

Further, the ion introduction step S8 is continued for 0.2 to 20 milliseconds, and the skin care step S11 is for 0.2 to 20 milliseconds. Therefore, the beauty instrument 1 can fully penetrate the skin into the skin, and can fully obtain the activation effect of the skin.

As described above, the beauty device 1 is a beauty device having a possibility of exhibiting a cosmetic effect superior to the conventional one.

Further, in the beauty device 1 of the present example, a pulse voltage is applied between the first electrode 11 and the second electrode 12 to measure the inside of the control unit 3. The means of electrical property values. Thereby, the beauty instrument 1 can reduce the electric power consumed at the time of measurement of an electrical characteristic value compared with the case where a constant electric current continues to flow out.

Further, the beauty instrument 1 has means for starting the iontophoresis mode when it is determined that both the first electrode 11 and the second electrode 12 are in contact with the human body. Therefore, it is not necessary to provide the beauty instrument 1 with a switch for switching between the operation and the stop of the iontophoresis mode. Further, since the user does not need to perform the switching operation, the beauty instrument 1 becomes easy to use for the user. Moreover, it is not necessary to arrange a switch in the beauty instrument 1, and the effect of reducing the number of parts can be obtained.

In addition, when the beauty instrument 1 is configured to determine that at least one of the first electrode 11 and the second electrode 12 is not in contact with the human body, the delay timer 303 waits for a predetermined period of time to elapse, and then performs measurement and determination of the electrical characteristic value again. . Thereby, the frequency of measurement and determination of the electrical property value can be reduced. As a result, the beauty instrument 1 can reduce the standby state, and can reduce the power consumption of the state in which at least one of the first electrode 11 or the second electrode 12 is not in contact with the human body.

Further, the beauty instrument 1 is provided with the LED indicator 14, and is configured to light up the LED indicator 14 in the iontophoresis mode. Therefore, the user can easily confirm the implementation of the iontophoresis mode by the illumination of the LED indicator 14. As a result, the beauty instrument 1 is easy for the user to use.

Further, the beauty instrument 1 has the vibration motor 15 at the end on the first electrode 11 side, and is configured to drive the vibration motor 15 in the ion introduction mode. Therefore, the first vibration can be obtained by vibrating the motor 15 to obtain the first The contact portion of the electrode 11 with the skin and its peripheral portion contribute to the flow of lymph, or promote blood circulation or enhance metabolism. As a result, the beauty instrument 1 is a person who can enhance the cosmetic effect of the body feeling.

Moreover, in this example, as shown in FIGS. 6 to 8, the first electrode 11 and the second electrode 12 are arranged on the opposite sides in the vertical direction. Therefore, when the beauty instrument 1 is placed on a table, the possibility that the first electrode 11 and the second electrode 12 are electrically connected via the mounting surface can be reduced, and power consumption can be easily reduced.

In the above-described embodiment, the first electrode 11 is brought into contact with the surface of the skin to be cosmetically applied, and the first electrode 11 functions as a working electrode in the iontophoresis mode. However, the second electrode 12 may be used. As a structure of the working electrode. Further, the voltage applied between the first electrode 11 and the second electrode 12 can be appropriately set in accordance with the composition of the cosmetic component. For example, when the cosmetic component to be introduced into the skin is a cation, the potential of the first electrode 11 may be set higher than the second electrode 12 in the ion introduction step S8.

Further, a cosmetic agent that exhibits other cosmetic effects may be used before the application of the above-described charged cosmetic component. As the cosmetic agent, for example, those having a function of removing dirt and aged substances of the skin, and a cosmetic ingredient different from the above-described beauty ingredients can be used. Further, in this case, the cosmetic agent may include the above-mentioned charged cosmetic component in advance.

Further, the above cosmetic agent may be adsorbed by a magnetic force. At this time, the above-mentioned cosmetic agent can be easily removed by the adsorption head 13 of the beauty instrument 1. That is, the user who applies the above cosmetic agent makes after application The suction head 13 protrudes from the hand to the side of the first electrode 11 of the main body portion 10, and the magnetic force generating surface 130 side of the adsorption head portion 13 is brought close to the skin. Thereby, the used cosmetic agent is easily removed from the skin by the magnetic force of the magnetic force generating surface 130, and adheres to the adsorption head 13.

Further, when a cosmetic agent that can be adsorbed by a magnetic force contains a charged cosmetic component or the like in advance, the cosmetic component is preferably not adsorbed by a magnetic force. By using a cosmetic component that cannot be adsorbed by magnetic force, when the adsorption head 13 is brought close to the skin, the cosmetic component can be left on the surface of the skin and the cosmetic agent can be removed.

Further, at this time, a detachable cover member may be attached to the magnetic force generating surface 130 in advance. As long as the cover member can cover the magnetic force generating surface 130, various shapes and materials can be used. Thereby, the used cosmetic agent adsorbed to the adsorption head 13 can be peeled off from the magnetic force generating surface 130 together with the cover member.

In addition, the beauty device 1 of the present example has the control microcomputer 30 having the contact sensing function of the suction head 13 and the electrodes and the skin, and it is of course possible to energize the skin by controlling the skin care device without such a function. The current waveform boosts the cosmetic effect.

(Example)

Next, the cosmetic effect of the skin obtained by performing the above iontophoresis mode was evaluated. The evaluation contents and evaluation results will be described below.

<subject>

It is targeted at 20 Japanese women who are over 20 years old and 60 years old.

<test article>

The cosmetic device 1 of the above-described embodiment is used, and the following composition is used in the cosmetic agent used in combination with the beauty device 1. In addition, the cosmetic agent is designed to remove the magnetic powder from the skin by the adsorption head 13 of the beauty device 1, and then the L-ascorbic acid-2-phosphate trisodium salt and the moisturizer which function as the iontophoresis component remain on the skin. surface.

<Test method>

The half of the face of the subject is used as the surgery unit, and the following methods are performed on the surgery unit at intervals of three days. First, after cleaning and washing the face, the cosmetic agent was applied only to the application portion and left for 5 minutes. After 5 minutes, the magnetic powder in the cosmetic agent is adsorbed and removed from the skin using the adsorption head 13 of the beauty instrument 1. After the adsorption removal, the first electrode 11 is brought into contact with the skin while holding the second electrode 12 side of the beauty device 1, and the application portion is subjected to an iontophoresis mode and the skin is massaged for about 5 minutes to complete the operation. In addition, the part that was not administered was only the routine maintenance of each of the subjects as the control part.

<evaluation>

The evaluation of the cosmetic effect by the implementation of the iontophoresis mode is a state in which the pores of the operation portion and the control portion are visually observed at the respective evaluation points at the time of the start of the test, at the time of the lapse of 4 weeks, and after the lapse of 8 weeks. The results of the visual observation were numerically analyzed using a visual evaluation scale (Visual Analog Scale, VAS) and a five-stage evaluation. The numerical method formula for the VAS and the five-stage evaluation is as follows.

‧VAS

The VAS in this evaluation is a gauge formed of a line segment having a length of 79 mm. The end point of one of the VASs is equivalent to "the state in which the subject feels that he or she does not care about the pores at all", and the other end point is configured to correspond to "the state in which the subject feels rather concerned with the pores". The evaluation by VAS was carried out by the subject indicating the state of the pores on the VAS. Then, the ratio of the length of one end of the entire VAS to the length of the marked position is calculated, and this value is used as the VAS value. That is, the VAS value quantified by the above-described calculation method means that the smaller the value, the less the pore state is concerned.

Table 1 shows the changes in the VAS values of the subjects over time. In addition, FIG. 9 is a graph showing changes in VAS values between the start of the test and the time of completion of the test after the evaluation of the different parts of the subject, and FIG. 10 is an evaluation of the control part for different subjects. A graph showing the change in VAS value between the start of the test and the completion of the test. In addition, the horizontal axis of FIGS. 9 and 10 is VAS The value, the vertical direction, corresponds to the subject ID.

‧5 stage evaluation

At the time of each evaluation, the subjects themselves evaluated the difference between the two in the five stages to compare the state of the pores between the surgical part and the control part. The results are shown in Table 2. Further, the score states shown in Table 2 are as follows.

-2: The contrast is more conspicuous than the pores of the surgery

-1: The control section is slightly more conspicuous than the pores of the operation section

0: The degree of operation is the same as that of the control department.

+1: The surgery department is slightly more conspicuous than the control part

+2: The operation department is more conspicuous than the control part.

As can be seen from Table 1, in most of the subjects, the VAS value of the operation portion became smaller as time passed, and the state of the pores tends to be improved over time. Further, as can be seen from Fig. 9, in most of the subjects, the VAS value of the operation portion at the time of completion of the test (after 8 weeks) was smaller than the VAS value at the start of the test, and the pores were treated for 8 weeks. The status has improved significantly.

Further, as can be seen from Table 2, with respect to the relative evaluation of each evaluation time point, most of the subjects agreed that there was a tendency that the score became smaller, and the pores of the surgery portion became inconspicuous than the control portion. On the other hand, as for the control unit, as shown in Table 1 and FIG. 10, the change in the VAS value before and after the test was not observed for most of the subjects. From the above results, it is understood that the cosmetic device 1 can obtain a cosmetic effect in which the state of the pores of the surgical portion is improved.

F1~F3‧‧‧Basic waveform

Claims (5)

A beauty device is configured such that a first electrode and a second electrode are electrically connected to each other through a human body, and an electric current flows to an external circuit including the first electrode and the second electrode and a human body, thereby allowing a charged cosmetic component to penetrate into the skin. A beauty device according to the present invention, comprising: a main body portion of the second electrode that is in contact with a skin to which the cosmetic component is applied, and a second electrode that is in contact with another human body portion; and is disposed in the main body portion And a control unit that controls the current flowing between the first electrode and the second electrode, wherein the control unit is configured to perform an iontophoresis mode, wherein the pattern is sequentially performed over the first electrode and the first electrode An ion introduction step of flowing a current of one polarity in a state in which the polarity of the first electrode and the polarity of the charge of the cosmetic component are the same polarity between the second electrodes; and between the first electrode and the second electrode a reset pulse step of circulating a pulse current having a polarity opposite to that of the ion introduction step; and the first electrode and the second electrode Skin step current polarity alternately switched between the circulation. The beauty device according to claim 1, wherein the current in the ion introduction step is a pulse, and the current flowing in the skin care step is a rectangular wave, and an absolute value thereof is larger than a current flowing in the ion introduction step. The absolute value is smaller. The beauty device according to the first or second aspect of the invention, wherein the control unit has the ion introduction step and the reset pulse The magnitude of the current in each step of the punching step and the above-described skin care step is controlled by a constant current circuit corresponding to the value of each step. The beauty device according to claim 1 or 2, wherein the ion introduction step is continued for 0.2 to 20 milliseconds, and the skin care step is continued for 0.2 to 20 milliseconds. The cosmetic device according to claim 3, wherein the ion introduction step is continued for 0.2 to 20 milliseconds, and the skin care step is continued for 0.2 to 20 milliseconds.