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Understand electricity
Electricity
Electric current
Conductor
Nonconductor
Complete electric circuit
Understand electricity
Electricity
The movement of electrons from one atome to another along conductor.Electricity is a forme of energy that, when in motion,exhibits magnetic,chemical,or thermal effects.
Electricity
Electric current
The flow of electricity along a conductor.All materials can be classified as condutors or nonconductor(insulators)depending on the case with wich an electric current can be transmitted through them.
Electric current
Conductor
A conduct is any material that conducts electricty. Most metals are good conductors. This means that electricity will pass through the material easily. Copper is a particularly good conductor and s used in electric wiring and electric motors. Pure (distilled) water is a poor conductor, but the irons usually found in ordinary water, such as tap water or a river or a lake, make it a good conductor. This explains why you should not swim in a lake during an electrical storm.
Conductor
Nonconductor
A nonconductor, also known as an insulator, is a material that does not transmit electricity. Rubber, silk, wood, glass, and cemet are good insulators. Electric wires are composed of twisted metal threads (the conductor) covered with a rubber or plastic coating (the nonconductor or insulator).
Nonconductor
Complete electric circuit
A complete electric circuit is the path of negative and positive electric currents moving from the generating source through the conductors and back to the generating source.
Complete electric circuit
Types of Electric currents
Direct current
Inverter
Alternating current
Rectifier
Direct Current
A constant, even-flowing current that travels in one direction only and is produced by chemical means.
Direct Current
Inverter
An apparatus that changes direct curren to alternating current
Inverter
Alternating current
A rapd and interrupting current, flowing first in one direction and then in th opposite direction
Alternating current
Rectifier
An apparatus that changes alternating curren to direct current.
Rectifier
Electrical equipment
Hair dryer
curling and flat irons
heating caps
steamer
Ionic hair dryer
Ionic hair dryer with crystalline mineral tourmaline and styling irons are effective at combing static electricity and flyaway hair.when tourmaline is heated,it produces positive and negative ions that cancel the electric charges in the hair that cause static electricity.claims that ionic dryers dry faster or condition hair have not been proven.
Ionic hair dryer
Electric curling and flat irons
Electric and flat irons are available in many types and sizes.They have built-in heating elements and plug directly into a wall outlet.Thermal styling tools now have the capacity to get extremely hot (up to 410 degrees fahrenheit,or higher,on some styling tools).This extreme heat cause the water wuthin the hair to boil and can severely damage hair.
Heating cap
Heating caps provide a uniform source of heat and can be used with hair and scalp conditioning treatments.
Heating cap
Steamer
A steamer or vaporizer produces moist,uniform heat that can be applied to the heat or face. Sreamers warm and cleanse the skin by increase the flow or both oil and sweat.some steamers also may be used for hair and scalp conditioning treatments.Estheticians often add essential oils to a facial steamer as part of a skin therapy and to enhance a client's general well-being.
Steamer
Understanding Electrotherapy
Electrotherapy
Modalities
Electrode
Polarity
Anode
Cathode
Electrotherapy
The use of electrical currents to treat the skin
Electrotherapy
Modalities
Currents used in electrical facial and scalp treatments
Modalities
Electrode
An applicator for directing electric current from an electrotherapy device to the client's skin.
Electrode
Polarity
The negative or positive pole of an electric current.The electrodes on many electroctrotherapy
Polarity
Anode
the positively charged electrode by which the electrons leave a device.
Anode
Cathode
the negatively charged electrode by which electrons enter an electrical device
Cathode
ELECTRICITY COSMETOLOGY CHAPTER 13
Presented by Marie Jean
Light Therapy
Light therapy
Lazers
LED (Light-Emitting Diode)
Intene pulse light
Light Therapy
Light therapy or phototherapy (classically referred to as heliotherapy) consists of exposure to daylight or to specific wavelengths of light using polychromatic polarised light, lasers, light-emitting diodes, fluorescent lamps, dichroic lamps or very bright, full-spectrum light.
Light Therapy
Lasers
(Light Amplification Stimulation Emission of Radiaition)
It is a a medical device that uses electromagnetic radiation for hair removal and skin treatments.
Lasers
LED (Light- Emitting Diode
A medical device used to reduce acne, increase blood circulation, and improve the collagen content in the skin.
LED (Light- Emitting Diode
Intense Pulse Light
A medical device that uses multiple colors and wavelengths of focused light to trea spider veins, hyperpigmentation.
Intense Pulse Light
practice Electrical Equipement safety
practice Electrical Equipement safety
A wire that is not large enough to carry the electrical current passing through it will overheat.The heating element in your hair dryer or curling iron heats up because it is not largre enough to carry the electric current.Heating elements are designed to overheat and are safe when used properly, but when the electrical wires in wall overheat,they can cause fire.If excessive current passes through a circuit or a fuse, the circuit breaker turns off the circuit to prevent overheat.These are the electric safety devices that you may encounter when working in a salon.
fuse
Circuit breake
Grounding fault interrupters
Fuse
Prevents excessive current from passing through a circuit.
Fuse
Grounding
Completes an electricity circuit and carries the current safely away.
Grounding
Grounding fault interrupters
They are designed to protect from electrical shock by interrupting a household circuit when there is a leak in the circuit.GFI's are required by the electrical code for receptacles in bathroom,kitchens, and some outside receptacles.GFI is designed to detected currents of few millianperes and trip a breaker at the receptacle or at the breaker panel to remove shock hazard.When it is working properly it has a green light and when it trips the light turns red.Once the appliance is removed from the socket it can be reset with a "reset"button on the panel.
Grounding fault interrupters
beneficial Effects of LED Theraphy
Color nm (nanometers)
Blue light 570nm
Red light 640nm
yellow light 590 nm
Green light 520 nm
Reduces acne and reduces bacteria
BLUE LIGHT 570 NM
RED LIGHT 640 NM
Increase circulation improves collagen and elastin production stimulates wound healing
RED LIGHT 640 NM
YELLOW LIGHT 590 NM
Reduces swelling and inflammation improves lymphatic flow
Detoxifies and increase circulation
YELLOW LIGHT 590 NM
GREEN LIGHT 525NM
Reduces hyperpigmentation
Reduces redness
Clam and soothes
Natural sunlight is made up of three types of light;
Visible light= 35 percent
Invisible light infrared light =60 percent
Invisible ultraviolet light =5 percent
Electrical measurements
Volt
Ampere
Milliampere
Ohm
Watt
Kilowatt
Electrical measurements
VOLT
Volt is the unit that measures the pressure or force that pushes electric currentforward through a conductor.
Ex:Car batteries are 12 volts.
VOLT
AMPERE
The unit that mesure the strentgh of an electric current.The sink hose must be large enough to carry the amount of water flowing through it,a wire also must be large enough to carry the amount of electricity flowing through it.
Ex: a hair dryer rated at 12 amps must have a cord that is twice as thick as one rated at 6 amps.
AMPERE
milliampere
1/1,000 of an ampere.
The current used for facial and scalp treatments is measured in milliamperes; an ampere current would be much too strong.If used for facial and scalp treatments ,an ampere would damage the skin or body.
Ex:
milliampere
AN OHM
Unit that mesasures the resistance of an electric current.Current will not flow through a conductor unless the force(volt) is stronger than the resistance(ohm).
Ex:
AN OHM
WATT
Unit that measures how much electric energy is being used in a second.A-40 watt light bulb uses 40 watts of energy per second.
WATT
Kilowatt
IS 1,000 watts .The electricity in your house is measures in kilowatts per hour(kwh).A 1,000 watt (1-kilowatt) hair dryer uses 1,000 watts of energy per second.
Kilowatt
Micro current
As with all electric current devices,microcurrent should not be used on clients with pacemakers,epilepsy, cancer pregnancy,phlebitis,or thrombosis.It also should not be used on anyone under a physician's care for a condition that may exclude them from using certain ingredients or products or from having treatments.If you are unsure about wheter it is appropriate to treat clients,ask them to obtain physician consent for the service.
Micro current
As with all electric current devices,microcurrent should not be used on clients wi...
QUESTIONS
1)Name the substance desingned to speed up a chemical reactions?
a)catalysts.
2)Name the rays tha have long wavelenght and are able to penetrate deeply and produce more heat than visible light?
a)Infrared light.
3)Name the distance between two successive peaks?
a)A wavelength.
4)Name the thermal or heat-producing current with a high rate of oscillation?
a)Telsa high-frequency current.
5)When using galvanic currrent,in what direction does cathaforesis forces acidic substances into deeper tissues?
a)The positive pole toward to the negative pole.
6)Name the positive electrode?
a)Anode