HAIR SCALP CONSULTATION HAIR THE HAIR SHAFT THE
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HAIR, SCALP & CONSULTATION HAIR
THE HAIR SHAFT THE MEDULLA THE CORTEX THE CUTICLE
THE CUTICLE CLOSED OPEN
POOR CONDITION Chemicals enter OPEN CUTICLES Porous Poor cuticle condition
GOOD CONDITION CLOSED CUTICLES Resistant Chemicals cannot enter as easily Good cuticle condition
TASK 1 POROSITY TEST 1. Get into pairs and carry out an analysis of each others hair condition. 2. Look at the hair. 3. Listen and discuss previous treatments. 4. Feel the hair; this tells you a lot about the condition. 5. Carry out a porosity test. 6. Discuss the findings TAKE A FEW STRANDS OF HAIR AND WITH ONE FINGER & ONE THUMB SIDE DOWN TOWARDS THE SCALP. THE MORE RESISTANCE FELT, THE MORE POROUS THE HAIR.
TASK 2 Label the diagram and fill in the missing words from the list at the bottom of the page. The cuticle is made up of ______to ______ layers of overlapping scales. These scales are ______________, like frosted glass, so that the hair colour can be seen through them. The cuticle is very tough and holds the whole hair together, but it may be damaged by_____________such as perms or bleaches or harsh treatments such as ________________________. Answers: BACK BRUSHING, TEN, TRANSLUCENT, HARSH CHEMICALS, SEVEN.
THE HAIR TEXTURE IS DETERMINED BY THE AMOUNT OF CUTLCLE LAYERS FINE MEDIUM COARSE Very fine hair Average hair Very coarse hair
THE CORTEX REAL HAIR DRAWING
HAIR ELASTICITY POLYPEPTIDE CHAIN CORTIAL FIBRES LAYERS OF THE CUTICLE
PHYSICAL DAMAGE HAIR HAS BEEN SHEARED OFF CORTEX RIPPED THE START OF A SPLIT END
TASK 3 Look up elasticity test in the index page of your text book And complete the following sentence; How, why and when do you carry out an elasticity test?
TASK 4 (USE YOUR TEXT BOOKS TO HELP) The cortex is made from many strands or fibres, which are twisted together. These can stretch, and then return to their original length. Hair is made of a protein called — — — —. Keratin itself is made of — — — — — , which are found in long coiled chains called — — —chains. Various links and bonds hold these chains together. Temporary bonds are — — — — bonds and — — links. These break and rejoin whenever the hair is — — — — — or — — into a new shape. Answers: HYDROGEN, KERATIN, POLYPEPTIDE, AMINO ACIDS, DRIED, SALT, STRETCHED.
TASK 4 continued (USE YOUR TEXT BOOKS TO HELP) Permanent bonds are called __________ bonds; these are very strong and can only be broken by using _______or ___________. The cortex also contains colour ___________. These pigments are called __________, which are brown and black, and _______________, which are _______and _____. These can only be altered by permanent _____ or ________. The medulla is not always present in hair and does not have any real function Answers: MELANIN, BLEACHED, RELAXERS, YELLOW, PERMS, TINT, PIGMENT, SULPHUR, PHEOMELANIN.
TASK 5 IN GROUPS COMPLETE A LIST OF WHAT CAUSES DAMAGE TO THE HAIR ENVIROMENTAL PHYSICAL CHEMICAL
REGENERATION OF THE HAIR The regeneration of the hair is influenced by the following factors: • • • Health Diet Age Effects of disease Hormone balance • • • Heredity factors Climate Physical condition Chemical affects Non stress
TASK 5 Hair is grouped into the following types: • Caucasian (European) - Loosely waved or straight hair. • Negroid (African) - Tight, kinked, woolly, curled hair. • Mongoloid (Asian) - Coarse, straight, lank hair.
PH SCALE With the help of page 19 of your text book write the following onto the p. H scale below indicating where they would sit; • Bleach • Tint • Shampoo • Water • Hair & Scalp ACID NEUTRAL Then complete the following task ALKALINE
PH SCALE - TASK Look on the packaging to see if you can find the p. H value of these products or use the universal indicator paper. PRODUCT PRE PERM SHAMPOO COLLEGE SHAMPOO FROM HOME COLLEGE CONDITIONER 4 X 4 VITAMIN STYLING PRODUCT HAIR SPRAY FASHION FORM PERM SOLUTION NEUTRALISER TINT PEROXIDE WHEN COLOUR MIXED TINT REMOVER BLEACH WATER VALUE p. H ACID ALKALINE
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